145-550: The 4073 or Castle Class are 4-6-0 steam locomotives of the Great Western Railway , built between 1923 and 1950. They were designed by the railway's Chief Mechanical Engineer, Charles Collett , for working the company's express passenger trains. They could reach speeds of up to 100 mph (160 km/h). The origins of this highly successful design date back to the Star Class of 1907 which introduced
290-659: A Scottish inventor, built a small-scale prototype of a steam road locomotive in Birmingham . A full-scale rail steam locomotive was proposed by William Reynolds around 1787. An early working model of a steam rail locomotive was designed and constructed by steamboat pioneer John Fitch in the US during 1794. Some sources claim Fitch's model was operable already by the 1780s and that he demonstrated his locomotive to George Washington . His steam locomotive used interior bladed wheels guided by rails or tracks. The model still exists at
435-660: A (newly identified) Killingworth Billy in 1816. He also constructed The Duke in 1817 for the Kilmarnock and Troon Railway , which was the first steam locomotive to work in Scotland. In 1825, Stephenson built Locomotion No. 1 for the Stockton and Darlington Railway , north-east England, which was the first public steam railway in the world. In 1829, his son Robert built in Newcastle The Rocket , which
580-573: A 145V AC supply could light the terminus, office, goods yard and Royal Oak and Westbourne Park stations. It was praised for its scale and showing that electricity could compete with gas lighting on the same scale. Paddington became an important milk depot towards the end of the 19th century. A milk dock was built 1881, and by the 20th century over 3,000 churns were being handled at the station every day. Other goods such as meat, fish, horses and flowers were also transported through Paddington. Passenger traffic continued to improve as well. In March 1906,
725-565: A Castle by extending the frames and fitting a new Castle Class boiler and cab. It was renumbered and renamed 100 A1 Lloyds and was withdrawn in 1950. In October 1925 a second Star class, No. 4016 The Somerset Light Infantry (Prince Albert's) , was similarly converted to a Castle although in this case, it retained its name and number. Two further conversions of Stars were undertaken in 1926; Nos. 4032 Queen Alexandra and 4037 The South Wales Borderers retaining their names and numbers and surviving until 1951 and 1962 respectively. In November 1929
870-448: A balance has to be struck between obtaining sufficient draught for combustion whilst giving the exhaust gases and particles sufficient time to be consumed. In the past, a strong draught could lift the fire off the grate, or cause the ejection of unburnt particles of fuel, dirt and pollution for which steam locomotives had an unenviable reputation. Moreover, the pumping action of the exhaust has the counter-effect of exerting back pressure on
1015-486: A crankpin on the driving wheel ( Main driver in the US) or to a crank on a driving axle. The movement of the valves in the steam chest is controlled through a set of rods and linkages called the valve gear , actuated from the driving axle or from the crankpin; the valve gear includes devices that allow reversing the engine, adjusting valve travel and the timing of the admission and exhaust events. The cut-off point determines
1160-511: A daily morning and evening service in both directions, changing at Newport, Cardiff or Swansea. This route has been in existence since 1906. Paddington is the terminus for suburban trains to West London, Thames Valley , Reading , and Didcot , operated by Great Western Railway. The general off peak service pattern in trains per hour (tph) is: Great Western Railway Elizabeth line (operates from underground Elizabeth line platforms, A and B) Heathrow Express Until May 2003, Paddington
1305-648: A departure board. Platform 7 is dedicated to the Heathrow Express . Flight information display screens for airline passengers are provided at the Heathrow Express ticket office near these platforms. An integrated timetable is offered between Paddington and Rosslare Europort in Ireland via the Stena Line ferry from Fishguard Harbour railway station with through ticketing to stations and
1450-441: A deployable "water scoop" fitted under the tender or the rear water tank in the case of a large tank engine; the fireman remotely lowered the scoop into the trough, the speed of the engine forced the water up into the tank, and the scoop was raised again once it was full. Water is essential for the operation of a steam locomotive. As Swengel argued: Paddington railway station Paddington , also known as London Paddington ,
1595-495: A fourth span of 109 feet (33 m) was added on the north side, parallel to the others. The new span was built in a similar style to the original three spans, but the detailing is different and it has no transepts. The area between the rear of the hotel and the concourse is called the Lawn. It was originally unroofed and occupied by sidings, but was later built up to form part of the station's first concourse. Paddington's capacity
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#17328011654261740-621: A full set of construction drawings. Both proposals were rejected by the GWR Board of Directors. The LMS eventually succeeded in gaining access to the design by recruiting William Stanier , the GWR's Works Manager at its Swindon Works to become the new Chief Mechanical Engineer for the LMS. In 1935 attention was turning to streamlining locomotives, particularly with the introduction of the LNER A4 , and
1885-429: A gauge mounted in the cab. Steam pressure can be released manually by the driver or fireman. If the pressure reaches the boiler's design working limit, a safety valve opens automatically to reduce the pressure and avoid a catastrophic accident. The exhaust steam from the engine cylinders shoots out of a nozzle pointing up the chimney in the smokebox. The steam entrains or drags the smokebox gases with it which maintains
2030-495: A grand terminus dedicated to the GWR would be acceptable, and consequently this was approved in February 1853. The main station between Bishop's Bridge Road and Praed Street was designed by Brunel, who was enthusiastic at the idea of being able to design a railway station himself, although much of the architectural detailing was by his associate Matthew Digby Wyatt . He took inspiration from Joseph Paxton 's Crystal Palace and
2175-488: A lower pressure in the smokebox than that under the firebox grate. This pressure difference causes air to flow up through the coal bed and keeps the fire burning. The search for thermal efficiency greater than that of a typical fire-tube boiler led engineers, such as Nigel Gresley , to consider the water-tube boiler . Although he tested the concept on the LNER Class W1 , the difficulties during development exceeded
2320-433: A lower reciprocating mass than three, four, five or six coupled axles. They were thus able to turn at very high speeds due to the lower reciprocating mass. A trailing axle was able to support a huge firebox, hence most locomotives with the wheel arrangement of 4-4-2 (American Type Atlantic) were called free steamers and were able to maintain steam pressure regardless of throttle setting. The chassis, or locomotive frame ,
2465-639: A number of Swiss steam shunting locomotives were modified to use electrically heated boilers, consuming around 480 kW of power collected from an overhead line with a pantograph . These locomotives were significantly less efficient than electric ones ; they were used because Switzerland was suffering a coal shortage because of the War, but had access to plentiful hydroelectricity . A number of tourist lines and heritage locomotives in Switzerland, Argentina and Australia have used light diesel-type oil. Water
2610-461: A number of important innovations that included using high-pressure steam which reduced the weight of the engine and increased its efficiency. Trevithick visited the Newcastle area in 1804 and had a ready audience of colliery (coal mine) owners and engineers. The visit was so successful that the colliery railways in north-east England became the leading centre for experimentation and development of
2755-401: A port with Bristol if the railway from Birmingham was extended. The first station was a temporary terminus for the GWR on the west side of Bishop's Bridge Road, opened on 4 June 1838. The first GWR service from London to Taplow, near Maidenhead, ran from Paddington in 1838. After the main station opened, this became the site of the goods depot. Brunel did not consider that anything less than
2900-595: A result of this, GWR General Manager Sir Felix Pole proposed to LNER Southern Area General Manager Alexander Wilson that a trial of the two types should take place via an exchange arrangement. The resulting trials commenced in April 1925 with 4079 Pendennis Castle representing the GWR on the East Coast Main Line and 4474 Victor Wild representing the LNER on GWR tracks. On the first morning Pendennis Castle
3045-459: A rigid frame with a 30% weight reduction. Generally, the largest locomotives are permanently coupled to a tender that carries the water and fuel. Often, locomotives working shorter distances do not have a tender and carry the fuel in a bunker, with the water carried in tanks placed next to the boiler. The tanks can be in various configurations, including two tanks alongside ( side tanks or pannier tanks ), one on top ( saddle tank ) or one between
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#17328011654263190-461: A side window cab and an increased grate area. The result was an increase in tractive effort to 31,625 lb, and a locomotive that looked attractive and well proportioned while remaining within the 20-ton axle limit. Unlike the Star class, there was no prototype. Collett was sufficiently confident of the design to place an order with Swindon Works (Lot 224) for ten locomotives in 1923, although there
3335-421: A standard No.7 boiler, as fitted to his GWR 4700 Class express freight 2-8-0. However, this combination would have taken the axle load over the 20-ton limit then set by the civil engineers, and in the end, nothing came of the idea. Charles Collett succeeded Churchward as Chief Mechanical Engineer of the GWR in 1922 and immediately set about meeting the need for a new locomotive design that would both supplement
3480-401: A tank in the locomotive tender or wrapped around the boiler in the case of a tank locomotive . Periodic stops are required to refill the tanks; an alternative was a scoop installed under the tender that collected water as the train passed over a track pan located between the rails. While the locomotive is producing steam, the amount of water in the boiler is constantly monitored by looking at
3625-510: Is a London railway station and London Underground station complex, located on Praed Street in the Paddington area. The site has been the London terminus of services provided by the Great Western Railway and its successors since 1838. Much of the main line station dates from 1854 and was designed by Isambard Kingdom Brunel . As of the 2022–23 Office of Rail & Road Statistics, it is
3770-405: Is a locomotive that provides the force to move itself and other vehicles by means of the expansion of steam . It is fuelled by burning combustible material (usually coal , oil or, rarely, wood ) to heat water in the locomotive's boiler to the point where it becomes gaseous and its volume increases 1,700 times. Functionally, it is a steam engine on wheels. In most locomotives, the steam
3915-449: Is admitted alternately to each end of its cylinders in which pistons are mechanically connected to the locomotive's main wheels. Fuel and water supplies are usually carried with the locomotive, either on the locomotive itself or in a tender coupled to it. Variations in this general design include electrically powered boilers, turbines in place of pistons, and using steam generated externally. Steam locomotives were first developed in
4060-502: Is also the eastern terminus for Heathrow Express and the western terminus for Elizabeth line services from Shenfield . Elizabeth line services also run through Paddington westwards to Reading , Heathrow Terminal 5 , and Heathrow Terminal 4 , and eastwards to Abbey Wood . Situated in fare zone 1 , it has two separate tube stations providing connections to the Bakerloo , Circle , District , and Hammersmith & City lines . It
4205-475: Is crucial to the efficiency of any steam locomotive, and the internal profiles of the chimney (or, strictly speaking, the ejector ) require careful design and adjustment. This has been the object of intensive studies by a number of engineers (and often ignored by others, sometimes with catastrophic consequences). The fact that the draught depends on the exhaust pressure means that power delivery and power generation are automatically self-adjusting. Among other things,
4350-419: Is directed upwards out of the locomotive through the chimney, by way of a nozzle called a blastpipe , creating the familiar "chuffing" sound of the steam locomotive. The blastpipe is placed at a strategic point inside the smokebox that is at the same time traversed by the combustion gases drawn through the boiler and grate by the action of the steam blast. The combining of the two streams, steam and exhaust gases,
4495-433: Is one of 11 London stations managed directly by Network Rail . The station has been perennially popular for passengers and goods, particularly milk and parcels. Major upgrades took place in the 1870s, the 1910s and the 1960s, each trying to add additional platforms and space while trying to preserve the existing services and architecture as much as possible. Paddington was first served by London Underground trains in 1863, as
GWR 4073 Class - Misplaced Pages Continue
4640-415: Is the principal structure onto which the boiler is mounted and which incorporates the various elements of the running gear. The boiler is rigidly mounted on a "saddle" beneath the smokebox and in front of the boiler barrel, but the firebox at the rear is allowed to slide forward and backwards, to allow for expansion when hot. European locomotives usually use "plate frames", where two vertical flat plates form
4785-634: The Big Four grouping in 1923. A tube railway for the Post Office, opened in December 1927, could cater for around 10,000 mailbags every day. Paddington was extended again from 1930 to 1934. Platforms 2 to 11 were extended past the Bishop's Road bridge and a new parcel depot was built. Suburban services, which had never been considered important at Paddington, were increased as new housing estates in
4930-704: The Crosville Motor Services bus depot. In summer 2018 it was moved briefly to Tyseley Locomotive Works in Birmingham to make an appearance at their open weekend before moving to its planned home at the West Somerset Railway for restoration. It is now located at Loughborough on the Great Central Railway , but will not be restored to mainline standards as its current owner intends to run it for its first ticket on
5075-924: The Drache , was delivered in 1848. The first steam locomotives operating in Italy were the Bayard and the Vesuvio , running on the Napoli-Portici line, in the Kingdom of the Two Sicilies. The first railway line over Swiss territory was the Strasbourg – Basel line opened in 1844. Three years later, in 1847, the first fully Swiss railway line, the Spanisch Brötli Bahn , from Zürich to Baden
5220-593: The Elizabeth Line , alongside London Liverpool Street , it has become far busier, and London Paddington had become the 2nd busiest station in the United Kingdom during the 2022–23 period, with 59.2 million total passengers, behind London Liverpool Street and ahead of London Waterloo , the former busiest station. Paddington is the London terminus for long-distance high-speed trains operated by Great Western Railway . Two services go to Heathrow Airport :
5365-483: The Euston Arch ) in a classical and French-chateau design. It opened on 9 June 1854, and had 103 bedrooms and 15 sitting rooms. Each corner contained a tower containing two additional floors beyond the five storeys of the main block. It was originally run by a consortium of GWR shareholders and staff, before the company took over operations completely in 1896. The station was substantially enlarged in 1906–1915 and
5510-420: The Heathrow Express travels non-stop at a premium fare, while Elizabeth line takes the same route but calls at all intermediate stations. The station has 13 terminal platforms, numbered 1 to 12 and 14 from south-west to north-east (left to right as seen from the concourse). Platforms 1 to 8 are below the original three spans of Brunel's train shed, platforms 9 to 12 beneath the later fourth span. Platform 13
5655-493: The München Hauptbahnhof . The glazed roof is supported by wrought iron arches in three spans, respectively spanning 68 feet (21 m), 102 feet (31 m) and 70 feet (21 m). The roof is 699 feet (210 m) long, and the original roof spans had two transepts connecting the three spans. It is commonly believed that these were provided by Brunel to accommodate traversers to carry coaches between
5800-775: The National Collection upon withdrawal and has not run since being preserved. It can currently be found at STEAM, the Museum of the Great Western Railway in Swindon. No. 7027 Thornbury Castle was in ex-Barry Scrapyard condition and in July 2016 was sold by Pete Waterman to the Somerset transport firm JJP Holdings SW, transported to Weston-super-Mare on a low loader , then placed on a temporary track in
5945-591: The Ohio Historical Society Museum in Columbus, US. The authenticity and date of this locomotive is disputed by some experts and a workable steam train would have to await the invention of the high-pressure steam engine by Richard Trevithick , who pioneered the use of steam locomotives. The first full-scale working railway steam locomotive was the 3 ft ( 914 mm ) gauge Coalbrookdale Locomotive built by Trevithick in 1802. It
GWR 4073 Class - Misplaced Pages Continue
6090-612: The Pennsylvania Railroad class S1 achieved speeds upwards of 150 mph, though this was never officially proven. In the United States, larger loading gauges allowed the development of very large, heavy locomotives such as the Union Pacific Big Boy , which weighs 540 long tons (550 t ; 600 short tons ) and has a tractive effort of 135,375 pounds-force (602,180 newtons). Beginning in
6235-717: The Pilbara region of Western Australia and exported in 1977. In 1989 it was moved by road to Perth where it double-headed with 4472 Flying Scotsman operating as far as Esperance . In 2000 it was donated by Rio Tinto to the Great Western Society and restored to operational condition at the Didcot Railway Centre in 2021. As of 2024, three Castles are operational. Both 5043 and 7029 have mainline certificates with 4079 restricted to only operate on heritage lines. Two engines, 5029 and 5080, are in
6380-535: The United Kingdom during the early 19th century and used for railway transport until the middle of the 20th century. Richard Trevithick built the first steam locomotive known to have hauled a load over a distance at Pen-y-darren in 1804, although he produced an earlier locomotive for trial at Coalbrookdale in 1802. Salamanca , built in 1812 by Matthew Murray for the Middleton Railway ,
6525-753: The West End or the City . However, recent redevelopment of derelict railway and canal land, marketed as Paddington Waterside , has resulted in new office complexes nearby. The station is in London fare zone 1 . In addition to the Underground stations at Paddington, Lancaster Gate station on the Central line is a short walk away to the south. A little further to the south lie the conjoined parks of Hyde Park and Kensington Gardens . The narrow busy section of
6670-812: The 1950s, with the first 100 A1 Lloyds withdrawn from Old Oak Common in March 1950. The first "new build" Castle, number 4091 Dudley Castle , was withdrawn from Old Oak Common nearly nine years later in January 1959. The lowest mileage of a Castle was the 580,346 miles run by 7035 Ogmore Castle between August 1950 and June 1964; the highest mileage of any Castle class was by 4080 Powderham Castle which totalled 1,974,461 miles in 40 years and 5 months. The last three Castles to be withdrawn were all allocated to Gloucester shed, with 5042 Winchester Castle and 7022 Hereford Castle withdrawn in June 1965. The last to be withdrawn
6815-464: The A4 design, or the sense of power associated with the streamlined LMS Coronation Class introduced 2 years later. Once the additions had been added a test run was carried out between Bristol and Swindon during which Manorbier Castle achieved a speed of 100 mph, but the experiment did not have any lasting effect on GWR locomotive design and the additions were later removed. The Castles handled all but
6960-483: The Acton-Northolt line closed. When its London Marylebone terminus was closed, Chiltern Railways diverted its services to London Paddington as did Wrexham & Shropshire between 2008 and 2011. On 9 August 1920, a passenger train collided with the buffers. Two people were injured. The following year, a passenger train was being shunted into a platform and collided with three luggage vans already occupying
7105-486: The GCR before considering future mainline certification. Two of the eight preserved Castles, nos. 5043 Earl of Mount Edgcumbe and 7029 Clun Castle , are fitted with double chimneys while the remaining six are still fitted with the original single chimney. 4079 was purchased by Sir William McAlpine and hauled a small number of railtours on the main line in its early preservation years before being sold to Hamersley Iron in
7250-409: The GWR felt that they could gain publicity in this area. Instructions were passed to Swindon Works to select a suitable locomotive and as 5005 Manorbier Castle was being prepared for test, additions were made to the locomotive to effect some streamlining. The application of shaped steel sheet in an attempt to smooth airflow has been described as a "bodge-up" and certainly lacked either the elegance of
7395-659: The Home Counties started being built. Bishop's Road station was rebuilt, giving an extra four platforms to Paddington (Nos. 13–16) and providing a new ticket office and entrance for suburban services next to the bridge. A public address system was introduced in 1936. By this time, around 22,000 parcels a day were being forwarded from Paddington, with the Royal Mail service processing around 4,500 mailbags and 2,400 parcel bags every day. The station came under attack several times during World War II . On 17 April 1941,
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#17328011654267540-438: The London end of the four train sheds. Platform 14 can only be reached indirectly via the north-western end of platform 12. A footbridge crosses the north-western end of the station and gives access to platforms 1–12 and 14. There are ticket barriers to platforms 2–7 and 10–14. A first-class lounge on Platform 1 provides complimentary refreshments and Wi-Fi internet access. It also has screens showing television news as well as
7685-582: The Saar (today part of Völklingen ), but neither could be returned to working order after being dismantled, moved and reassembled. On 7 December 1835, the Adler ran for the first time between Nuremberg and Fürth on the Bavarian Ludwig Railway . It was the 118th engine from the locomotive works of Robert Stephenson and stood under patent protection. In Russia , the first steam locomotive
7830-520: The Stars and replace them on the heaviest expresses. Collett's solution was to take the basic layout of the Star with an extended frame, and add a newly designed No.8 boiler which was both larger and lighter. The increased amount of steam that this produced allowing an increase in the cylinder diameter from 15 in × 26 in (381 mm × 660 mm) to 16 in × 26 in (406 mm × 660 mm). The extended frame allowed for
7975-466: The Stars. The first, No. 4073 Caerphilly Castle , made its debut at Paddington station on 23 August 1923. The choice of 4082 as Windsor Castle proved fortuitous as this locomotive was used to haul the Royal Train when King George V and Queen Mary visited Swindon Works in 1924, and much publicity was gained when the king was invited to drive the engine back from the works to the station before
8120-623: The Swindon Works to Swindon railway station , accompanied on the footplate by Queen Mary . Plaques to commemorate the event were fixed to the sides of the cab and it was considered to be a royal locomotive from then onwards. At the king's state funeral on 28 January 1936, Windsor Castle was chosen to haul the funeral train from Paddington Station in London to Windsor & Eton . It was preceded at ten-minute intervals by another six trains hauled by Castle-class engines, each carrying royal and other important mourners. The same locomotive
8265-423: The US), or screw-reverser (if so equipped), that controls the cut-off, therefore, performs a similar function to a gearshift in an automobile – maximum cut-off, providing maximum tractive effort at the expense of efficiency, is used to pull away from a standing start, whilst a cut-off as low as 10% is used when cruising, providing reduced tractive effort, and therefore lower fuel/water consumption. Exhaust steam
8410-617: The United States, including John Fitch's miniature prototype. A prominent full sized example was Col. John Steven's "steam wagon" which was demonstrated on a loop of track in Hoboken, New Jersey in 1825. Many of the earliest locomotives for commercial use on American railroads were imported from Great Britain, including first the Stourbridge Lion and later the John Bull . However, a domestic locomotive-manufacturing industry
8555-550: The adhesive weight. Equalising beams connecting the ends of leaf springs have often been deemed a complication in Britain, however, locomotives fitted with the beams have usually been less prone to loss of traction due to wheel-slip. Suspension using equalizing levers between driving axles, and between driving axles and trucks, was standard practice on North American locomotives to maintain even wheel loads when operating on uneven track. Locomotives with total adhesion, where all of
8700-454: The basic 4-cylinder 4-6-0 layout with long-travel valves and Belpaire firebox that was to become characteristic of Great Western Railway (GWR) express passenger locomotives. The Star class was designed to take the top express trains on the GWR, with 61 in service by 1914, but after World War I there was a need for an improved design. To meet this need, Chief Mechanical Engineer George Churchward had in mind an enlarged Star class design with
8845-402: The best railway in the country. The GWR had originally planned to terminate London services at Euston as this allowed them to use part of the London and Birmingham Railway 's track into the station, which would have been cost effective. This received government approval in 1835, but was rejected as a long-term solution by Brunel as he was concerned it would also allow Liverpool to compete as
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#17328011654268990-402: The boiler materials to the point where it needs to be rebuilt or replaced. Start-up on a large engine may take hours of preliminary heating of the boiler water before sufficient steam is available. Although the boiler is typically placed horizontally, for locomotives designed to work in locations with steep slopes it may be more appropriate to consider a vertical boiler or one mounted such that
9135-404: The boiler remains horizontal but the wheels are inclined to suit the slope of the rails. The steam generated in the boiler fills the space above the water in the partially filled boiler. Its maximum working pressure is limited by spring-loaded safety valves. It is then collected either in a perforated tube fitted above the water level or by a dome that often houses the regulator valve, or throttle,
9280-399: The boiler. Boiler water surrounds the firebox to stop the metal from becoming too hot. This is another area where the gas transfers heat to the water and is called the firebox heating surface. Ash and char collect in the smokebox as the gas gets drawn up the chimney ( stack or smokestack in the US) by the exhaust steam from the cylinders. The pressure in the boiler has to be monitored using
9425-458: The departure side of the station was hit by a parachute mine, while on 22 March 1944, the roof between platforms 6 and 7 was destroyed by two 500-pound (230 kg) bombs. Passenger traffic greatly increased through Paddington during the war, partly by evacuation to the relatively quiet Thames Valley , and because holidaymakers chose to travel west as large areas of the south and east coasts had been taken over for military purposes. On 29 July 1944,
9570-689: The dominant fuel worldwide in steam locomotives. Railways serving sugar cane farming operations burned bagasse , a byproduct of sugar refining. In the US, the ready availability and low price of oil made it a popular steam locomotive fuel after 1900 for the southwestern railroads, particularly the Southern Pacific. In the Australian state of Victoria, many steam locomotives were converted to heavy oil firing after World War II. German, Russian, Australian and British railways experimented with using coal dust to fire locomotives. During World War 2,
9715-440: The early 1900s, steam locomotives were gradually superseded by electric and diesel locomotives , with railways fully converting to electric and diesel power beginning in the late 1930s. The majority of steam locomotives were retired from regular service by the 1980s, although several continue to run on tourist and heritage lines. The earliest railways employed horses to draw carts along rail tracks . In 1784, William Murdoch ,
9860-407: The end of through trains between Paddington and Birkenhead . These two, and six other Castles, survive in preservation. Of the eight Castles to be preserved, six have steamed in preservation and have been operated on the main line. Three were obtained direct from BR, 4073, 4079 and 7029, with the remaining five being rescued from Barry Scrapyard . No. 4073 Caerphilly Castle was given directly to
10005-487: The ends of the platforms for horse and coach traffic. The first GWR service from the new station departed on 16 January 1854, though the roof had not been finished at this point and there were no arrivals. It was formally opened on 29 May, and the older temporary station was demolished the following year. The Great Western Hotel was built on Praed Street in front of the station from 1851 to 1854 by architect Philip Charles Hardwick , son of Philip Hardwick (designer of
10150-431: The exhaust gas volume was vented through a cooling tower, allowing the steam exhaust to draw more air past the radiator. Running gear includes the brake gear, wheel sets , axleboxes , springing and the motion that includes connecting rods and valve gear. The transmission of the power from the pistons to the rails and the behaviour of the locomotive as a vehicle, being able to negotiate curves, points and irregularities in
10295-448: The firebox becomes exposed. Without water on top of the sheet to transfer away the heat of combustion , it softens and fails, letting high-pressure steam into the firebox and the cab. The development of the fusible plug , a temperature-sensitive device, ensured a controlled venting of steam into the firebox to warn the fireman to add water. Scale builds up in the boiler and prevents adequate heat transfer, and corrosion eventually degrades
10440-732: The fitting of double chimneys to selected engines, combined with larger superheaters, further enhanced their capacity for sustained high-speed performance. The fastest recorded speed of a Castle Class engine was 102 mph achieved by 7018 Drysllwyn Castle at Little Somerford in April 1958 while hauling The Bristolian from Bristol to London. The non-stop run over 117.6 miles took 93 minutes 50 seconds, an average speed of more than 75 mph. Between 1946 and 1948 five engines—100A1, 5039, 5079, 5083 and 5091—were converted to oil-firing, but were soon restored to burn coal. Eleven Halls were also temporarily converted. On 28 April 1924, King George V drove locomotive No. 4082 Windsor Castle from
10585-465: The following year. Three new platforms were added; platform 12 in November 1913, platform 11 in December 1915, and platform 10 the following year. The roof was completely reconstructed between 1922 and 1924, replacing Brunel's original cast-iron columns with steel replicas. Unlike several other London termini, Paddington saw no damage during World War I . Although Victoria and Charing Cross were
10730-512: The frames ( well tank ). The fuel used depended on what was economically available to the railway. In the UK and other parts of Europe, plentiful supplies of coal made this the obvious choice from the earliest days of the steam engine. Until 1870, the majority of locomotives in the United States burned wood, but as the Eastern forests were cleared, coal gradually became more widely used until it became
10875-534: The front by Praed Street and at the rear by Bishop's Bridge Road, which crosses the station throat on Bishop's Bridge . On the west side of the station is Eastbourne Terrace, while the east side is bounded by the Paddington arm of the Grand Union Canal . The station is in a shallow cutting, a fact obscured at the front by a hotel building, but which can be clearly seen from the other three sides. To
11020-411: The goods depot at Westbourne Park was moved to Old Oak Common . The main departure platform was extended in 1908 and used for milk and parcels. In 1911, work began to separate light and empty carriage traffic from running trains between Paddington to Old Oak Common, which involved the rebuilding of Westbourne Park station. The work was halted because of World War I but resumed in 1926, to be completed
11165-418: The grate into an ashpan. If oil is used as the fuel, a door is needed for adjusting the air flow, maintaining the firebox, and cleaning the oil jets. The fire-tube boiler has internal tubes connecting the firebox to the smokebox through which the combustion gases flow transferring heat to the water. All the tubes together provide a large contact area, called the tube heating surface, between the gas and water in
11310-528: The heaviest loads, these being entrusted to the 30-strong King Class , themselves a development of the Castles with an even larger boiler and smaller wheels (6 ft 6 in diameter) for both increased tractive effort and to allow for loading gauge clearance. The Castle class was noted for superb performance overall, and notably on the Cheltenham Flyer during the 1930s: for example, on 6 June 1932
11455-582: The highly mineralised water was available, and locomotive boilers were lasting less than a quarter of the time normally expected. In the days of steam locomotion, about half the total train load was water for the engine. The line's operator, Commonwealth Railways , was an early adopter of the diesel-electric locomotive . The fire-tube boiler was standard practice for steam locomotive. Although other types of boiler were evaluated they were not widely used, except for some 1,000 locomotives in Hungary which used
11600-495: The incoming main railway line between Ladbroke Grove and Paddington station is known as Paddington Throat among some engineers. The National Rail station is officially named London Paddington , a name commonly used outside London but rarely by Londoners, who call it just Paddington , as on the London Underground map . This same practice applies to all the London mainline rail termini, except London Bridge. Parts of
11745-498: The last 2 days of the trial by gaining 15 minutes on the schedule in both directions. In 1926, number 5000 Launceston Castle was loaned to the London, Midland & Scottish Railway (LMS) where it ran trials between London and Carlisle . The locomotive fulfilled the LMS requirements so well that the latter first requested the GWR to build a batch of Castles for use on the West Coast Main Line , and, failing that,
11890-462: The late 2010s improved air quality. London Paddington has always been one of the busiest stations in the UK, and was ranked as the 8th busiest station in the United Kingdom during the 2016–17 period according to the Office of Rail & Road, with 36.6 million passengers during that period, and was placed between Stratford and London St Pancras International . However, as a result of the opening of
12035-417: The latter could be moved to a more southerly position. Aside from the June 1878 work, Brunel's original roof structure remained untouched throughout the improvements. The GWR began experimenting with the electric lighting in 1880, leading to Paddington being decorated with Christmas lights that year. Although the system was unreliable, it spurred the GWR on to a more ambitious lighting scheme in 1886, in which
12180-681: The locomotive ran on a circular track in the factory yard. It was the first locomotive to be built on the European mainland and the first steam-powered passenger service; curious onlookers could ride in the attached coaches for a fee. It is portrayed on a New Year's badge for the Royal Foundry dated 1816. Another locomotive was built using the same system in 1817. They were to be used on pit railways in Königshütte and in Luisenthal on
12325-403: The main chassis, with a variety of spacers and a buffer beam at each end to form a rigid structure. When inside cylinders are mounted between the frames, the plate frames are a single large casting that forms a major support element. The axleboxes slide up and down to give some sprung suspension, against thickened webs attached to the frame, called "hornblocks". American practice for many years
12470-519: The main station building. Coinciding with this project, a new taxi rank and pick up point was built north of the main station, as well as comprehensive upgrades to Paddington tube station . The underground platforms opened as the Elizabeth line on 24 May 2022. The station had historically been criticised for very poor air quality inside the train shed; however, the replacement of diesel InterCity 125 trains by bi-mode Class 800 and 802 trains in
12615-423: The main stations for military movement during the war, Paddington was used for some of this traffic. On Armistice Day 1922, a memorial to the employees of the GWR who died during the war was unveiled by Viscount Churchill . The bronze memorial, depicting a soldier reading a letter, was sculpted by Charles Sargeant Jagger and stands on platform 1. The GWR was the only railway company that continued through
12760-509: The mainframes. Locomotives with multiple coupled-wheels on a rigid chassis would have unacceptable flange forces on tight curves giving excessive flange and rail wear, track spreading and wheel climb derailments. One solution was to remove or thin the flanges on an axle. More common was to give axles end-play and use lateral motion control with spring or inclined-plane gravity devices. Railroads generally preferred locomotives with fewer axles, to reduce maintenance costs. The number of axles required
12905-470: The moment when the valve blocks a steam port, "cutting off" admission steam and thus determining the proportion of the stroke during which steam is admitted into the cylinder; for example a 50% cut-off admits steam for half the stroke of the piston. The remainder of the stroke is driven by the expansive force of the steam. Careful use of cut-off provides economical use of steam and in turn, reduces fuel and water consumption. The reversing lever ( Johnson bar in
13050-559: The north of the station is the Westway , to the northeast is Edgware Road , and to the east and southeast is the London Inner Ring Road . The surrounding area is partly residential, and includes the major St Mary's Hospital , restaurants and hotels. Until recently there was little office accommodation in the area, and most commuters interchanged between National Rail and the London Underground to reach workplaces in
13195-460: The only Great Western 4-6-2 , No.111 The Great Bear , was rebuilt into a member of the Castle Class, although only the "front portion of the original frames and the number plates were used again but probably little else". The new locomotive was renamed Viscount Churchill and survived until withdrawal in July 1953. In April 1925, Star class No. 4009 Shooting Star was likewise rebuilt as
13340-797: The original John Bull was on static display in the National Museum of American History in Washington, D.C. The replica is preserved at the Railroad Museum of Pennsylvania . The first railway service outside the United Kingdom and North America was opened in 1829 in France between Saint-Etienne and Lyon ; it was initially limited to animal traction and converted to steam traction early 1831, using Seguin locomotives . The first steam locomotive in service in Europe outside of France
13485-483: The original western terminus of the Metropolitan Railway , the world's first underground railway. In the 20th century, suburban and commuter services appeared at Paddington as the urban sprawl of London moved westwards. Despite the numerous upgrades and rebuilding, plus damage sustained in particular during World War II , Brunel's original design is still recognisable. The station complex is bounded at
13630-468: The piston in turn. In a two-cylinder locomotive, one cylinder is located on each side of the vehicle. The cranks are set 90° out of phase. During a full rotation of the driving wheel, steam provides four power strokes; each cylinder receives two injections of steam per revolution. The first stroke is to the front of the piston and the second stroke to the rear of the piston; hence two working strokes. Consequently, two deliveries of steam onto each piston face in
13775-498: The pocket timetables it publishes, and its services to Bath, Bristol, Weston-super-Mare and South Wales are in timetable number 1. With the building of the Elizabeth line Paddington gained two more low level platforms numbered A and B. These are located underground in the Elizabeth line section of the station directly to the south west of the main concourse. The concourse stretches across the heads of platforms 1 to 12, underneath
13920-538: The process of undergoing overhauls. 5080 is due to have its boiler assessed in 2024 to ascertain the cost of its overhaul; to speed up the engine's return to service only the boiler is to be overhauled while its bottom-end remains intact. The engine will only operate on heritage railways at first, but a full mechanical overhaul to mainline standards will be undertaken once enough money has been raised. The engine will eventually become part of Tyseley's pool of mainline certified alongside class members 5043 and 7029. In 2023, 5029
14065-567: The prototype for the Star Class, No. 4000 North Star was rebuilt into a Castle, being subsequently withdrawn in 1957. Between 1937 and 1940 a further ten members of the 'Abbey series' of the Star class (Nos. 4063–4072) were rebuilt as Castles on Lot 317. They were allocated new numbers 5083 to 5092 but retained their original names and were withdrawn between 1958 and 1964. When introduced they were heralded as Britain's most powerful express passenger locomotive, being some 10% more powerful than
14210-411: The purpose of which is to control the amount of steam leaving the boiler. The steam then either travels directly along and down a steam pipe to the engine unit or may first pass into the wet header of a superheater , the role of the latter being to improve thermal efficiency and eliminate water droplets suspended in the "saturated steam", the state in which it leaves the boiler. On leaving the superheater,
14355-537: The return journey, with the Queen and several high-ranking GWR officers also on the footplate. During 1924, 4073 Caerphilly Castle was exhibited at the British Empire Exhibition at Wembley, alongside Nigel Gresley 's Flying Scotsman . The Great Western declared their engine to be more powerful than its bigger LNER rival, and in terms of tractive effort alone they were entitled to do so. As
14500-407: The same year. By this time, public opinion had turned against wholesale demolition and redevelopment of stations such as Euston, and consequently the rebuilding work was done with an eye towards preserving Brunel and Wyatt's original station design. Special steam services began to be run from Paddington again in the 1980s. In 1982, a bronze statue of Brunel was erected on the station concourse. It
14645-540: The scheduled time and used less coal, considerably denting LNER pride. For the LNER, Victor Wild was compared on the Cornish Riviera Express to 4074 Caldicot Castle and although it kept to time the longer wheelbase of the Pacific proved unsuited to the many curves on the route. Again the GWR took the honours with Caldicot Castle burning less fuel and always ahead of time, this being illustrated on
14790-599: The second busiest station in the United Kingdom, after London Liverpool Street , with 59.2 million entries and exits. Paddington is the London terminus of the Great Western Main Line ; passenger services are primarily operated by Great Western Railway , which provides commuter and regional passenger services to west London and the Thames Valley region, as well as long-distance intercity services to South West England and South Wales . The station
14935-418: The side of the piston receiving steam, thus slightly reducing cylinder power. Designing the exhaust ejector became a specific science, with engineers such as Chapelon , Giesl and Porta making large improvements in thermal efficiency and a significant reduction in maintenance time and pollution. A similar system was used by some early gasoline/kerosene tractor manufacturers ( Advance-Rumely / Hart-Parr ) –
15080-446: The station directly to Heathrow Airport . From 1999 until 2003, Express Baggage check-in facilities for airline passengers were provided in the Lawn, however these were progressively replaced by retail units. The station's fourth span was renovated in 2010, involving repair and restoration of the original glazed roof, so that platforms 9 to 12 can once more enjoy daylight. A false ceiling or crash deck had been in place since 1996. Work
15225-464: The station was closed for three hours because the platforms were saturated with passenger traffic, while on the subsequent August bank holiday , crowds were controlled in tight queues along Eastbourne Terrace by mounted police. Steam traffic began to be replaced in the late 1950s. Between 1959 and 1961, suburban services switched to diesel multiple units , while the last regular long-distance steam train left Paddington on 11 June 1965. The track layout
15370-400: The station, including the main train shed , date from 1854, when it was built by Isambard Kingdom Brunel as the London terminus for the Great Western Railway (GWR). It is one of eleven stations in London managed by Network Rail . After several false starts, Brunel announced the construction of a railway from Bristol to London on 30 July 1833. This became the GWR, and he intended it to be
15515-504: The steam exits the dry header of the superheater and passes down a steam pipe, entering the steam chests adjacent to the cylinders of a reciprocating engine. Inside each steam chest is a sliding valve that distributes the steam via ports that connect the steam chest to the ends of the cylinder space. The role of the valves is twofold: admission of each fresh dose of steam, and exhaust of the used steam once it has done its work. The cylinders are double-acting, with steam admitted to each side of
15660-477: The steam locomotive. Trevithick continued his own steam propulsion experiments through another trio of locomotives, concluding with the Catch Me Who Can in 1808, first in the world to haul fare-paying passengers. In 1812, Matthew Murray 's successful twin-cylinder rack locomotive Salamanca first ran on the edge-railed rack-and-pinion Middleton Railway . Another well-known early locomotive
15805-544: The success of Rocket at the 1829 Rainhill Trials had proved that steam locomotives could perform such duties. Robert Stephenson and Company was the pre-eminent builder of steam locomotives in the first decades of steam for railways in the United Kingdom, the United States, and much of Europe. Towards the end of the steam era, a longstanding British emphasis on speed culminated in a record, still unbroken, of 126 miles per hour (203 kilometres per hour) by LNER Class A4 4468 Mallard , however there are long-standing claims that
15950-434: The track, is of paramount importance. Because reciprocating power has to be directly applied to the rail from 0 rpm upwards, this creates the problem of adhesion of the driving wheels to the smooth rail surface. Adhesive weight is the portion of the locomotive's weight bearing on the driving wheels. This is made more effective if a pair of driving wheels is able to make the most of its axle load, i.e. its individual share of
16095-456: The tracks within the station. However recent research, using early documents and photographs, does not seem to support this belief, and their actual purpose is unknown. The original station used four platforms, 27-foot (8.2 m)-wide and 24-foot-6-inch (7.47 m)-wide departure platforms, a 21-foot (6.4 m) arrival platform, and a 47-foot (14 m) combined arrival platform and cab road. A series of nineteen turnplates were sited beyond
16240-522: The train, pulled by 5006 Tregenna Castle , covered the 77.25 miles from Swindon to Paddington at an average speed of 81.68 mph start-to-stop (124.3 km at an average speed of 131.4 km/h). This world record for steam traction was widely regarded as an astonishing feat. In 1946 Frederick Hawksworth , Collett's successor, introduced a higher degree of superheat to the Castle boiler with resulting increased economy in water consumption. From 1956
16385-433: The two cylinders generates a full revolution of the driving wheel. Each piston is attached to the driving axle on each side by a connecting rod, and the driving wheels are connected together by coupling rods to transmit power from the main driver to the other wheels. Note that at the two " dead centres ", when the connecting rod is on the same axis as the crankpin on the driving wheel, the connecting rod applies no torque to
16530-419: The water level in a transparent tube, or sight glass. Efficient and safe operation of the boiler requires keeping the level in between lines marked on the sight glass. If the water level is too high, steam production falls, efficiency is lost and water is carried out with the steam into the cylinders, possibly causing mechanical damage. More seriously, if the water level gets too low, the crown sheet (top sheet) of
16675-401: The water-tube Brotan boiler . A boiler consists of a firebox where the fuel is burned, a barrel where water is turned into steam, and a smokebox which is kept at a slightly lower pressure than outside the firebox. Solid fuel, such as wood, coal or coke, is thrown into the firebox through a door by a fireman , onto a set of grates which hold the fuel in a bed as it burns. Ash falls through
16820-413: The western area served by the GWR. The new locomotives were named after castles, also in the west, beginning with Caerphilly Castle . Over the twenty-seven years from August 1923 to August 1950, 155 Castles were built new at Swindon Works and a further sixteen were converted from other classes. In February 1952, two engines, 4082 Windsor Castle and 7013 Bristol Castle , swapped names and numbers: 7013
16965-408: The wheel. Therefore, if both cranksets could be at "dead centre" at the same time, and the wheels should happen to stop in this position, the locomotive could not start moving. Therefore, the crankpins are attached to the wheels at a 90° angle to each other, so only one side can be at dead centre at a time. Each piston transmits power through a crosshead , connecting rod ( Main rod in the US) and
17110-411: The wheels are coupled together, generally lack stability at speed. To counter this, locomotives often fit unpowered carrying wheels mounted on two-wheeled trucks or four-wheeled bogies centred by springs/inverted rockers/geared rollers that help to guide the locomotive through curves. These usually take on weight – of the cylinders at the front or the firebox at the rear – when the width exceeds that of
17255-406: The will to increase efficiency by that route. The steam generated in the boiler not only moves the locomotive, but is also used to operate other devices such as the whistle, the air compressor for the brakes, the pump for replenishing the water in the boiler and the passenger car heating system. The constant demand for steam requires a periodic replacement of water in the boiler. The water is kept in
17400-878: The world also runs in Austria: the GKB 671 built in 1860, has never been taken out of service, and is still used for special excursions. In 1838, the third steam locomotive to be built in Germany, the Saxonia , was manufactured by the Maschinenbaufirma Übigau near Dresden , built by Prof. Johann Andreas Schubert . The first independently designed locomotive in Germany was the Beuth , built by August Borsig in 1841. The first locomotive produced by Henschel-Werke in Kassel ,
17545-562: Was Puffing Billy , built 1813–14 by engineer William Hedley . It was intended to work on the Wylam Colliery near Newcastle upon Tyne. This locomotive is the oldest preserved, and is on static display at the Science Museum, London . George Stephenson , a former miner working as an engine-wright at Killingworth Colliery , developed up to sixteen Killingworth locomotives , including Blücher in 1814, another in 1815, and
17690-645: Was 7029 Clun Castle in December 1965, which worked the last steam train out of Paddington on 27 November 1965. 5003–04/06–08/11–13/16–17/19–21/24/27/30/32–36/44–48/52–53/59, 5061/62/64/66–69/72/75/77–78/82/84/88/90/94–95, 7016 5001/15/22–23/25/29/31/38/40–41/43/49–51/58/60/65/71/80–81/87/92–93/97/99, 7000–01/06–07/09/15/17–18/20–21/27–28/30–31/33/36–37 5000/02/18/26/37/39/54–57/70/73–74/76/85/89/91/96/98, 7002–05/08/10/12/19/25–26/32 See List of GWR 4073 Class locomotives On 4 March 1967, Nos. 7029 Clun Castle and 4079 Pendennis Castle hauled specials from Banbury and Oxford respectively to Chester , to mark
17835-486: Was a four-month delay between the appearance of the first example in August 1923 and the second in December, to allow for the correction of any teething problems. Thereafter the remaining eight locomotives came out at regular intervals until April 1924. They were 4073–4082, the number series continuing unbroken from the Star class. The last 12 Star class locomotives, which were built in 1922–23, had been given names of abbeys in
17980-412: Was an alteration to the shape of the front-end casing over the inside cylinders, and from 5043 Earl of Mount Edgcumbe a shorter chimney was fitted. Those built before 1926 were fitted with a 3,500 imp gal (16,000 L; 4,200 US gal) tender but thereafter 4,000 imp gal (18,000 L; 4,800 US gal) became standard for the class. Between January and September 1924,
18125-644: Was built in 1834 by Cherepanovs , however, it suffered from the lack of coal in the area and was replaced with horse traction after all the woods nearby had been cut down. The first Russian Tsarskoye Selo steam railway started in 1837 with locomotives purchased from Robert Stephenson and Company . In 1837, the first steam railway started in Austria on the Emperor Ferdinand Northern Railway between Vienna-Floridsdorf and Deutsch-Wagram . The oldest continually working steam engine in
18270-473: Was completed and the restored roof unveiled in July 2011. A second phase of improvements began in July 2014 and was completed two years later. Network Rail originally planned to demolish Span 4 and build an office block over it, which was successfully contested by Save Britain's Heritage . In the mid 2010s, construction began on an underground station as part of the Crossrail project, located south west of
18415-760: Was constructed for the Coalbrookdale ironworks in Shropshire in the United Kingdom though no record of it working there has survived. On 21 February 1804, the first recorded steam-hauled railway journey took place as another of Trevithick's locomotives hauled a train along the 4 ft 4 in ( 1,321 mm )-wide tramway from the Pen-y-darren ironworks, near Merthyr Tydfil , to Abercynon in South Wales. Accompanied by Andrew Vivian , it ran with mixed success. The design incorporated
18560-403: Was decommissioned in December 2016 to permit lengthening of platform 12 for 10-coach trains. Platform 14 is within the Metropolitan Railway 's old Bishop's Road (Suburban) station to the north-west. Immediately alongside are through platforms 15 and 16, used by the London Underground 's Hammersmith & City and Circle lines. The current operator, Great Western Railway, assigns numbers to
18705-411: Was dictated by the maximum axle loading of the railroad in question. A builder would typically add axles until the maximum weight on any one axle was acceptable to the railroad's maximum axle loading. A locomotive with a wheel arrangement of two lead axles, two drive axles, and one trailing axle was a high-speed machine. Two lead axles were necessary to have good tracking at high speeds. Two drive axles had
18850-411: Was disguised as 4082 to run George VI 's funeral train and the numbers were never swapped back. 4082 was withdrawn from service in 1964 as 7013 and 7013 was withdrawn from service as 4082 in 1965. The new-builds were as follows. Great Western Railway British Railways (Western Region) These locomotives were built with minimal changes to the dimensions. However, from 5013 Abergavenny Castle there
18995-471: Was doubled to four tracks in the 1870s. The quadrupling was completed to Westbourne Park on 30 October 1871, Slough in June 1879 and Maidenhead in September 1884. An additional platform (later to become No. 9) opened in June 1878, while two new departure platforms (later Nos. 4 and 5) were added in 1885. One of the lines between what is now platform 5 and 7 was removed, in order that
19140-487: Was entered in and won the Rainhill Trials . This success led to the company emerging as the pre-eminent builder of steam locomotives used on railways in the UK, US and much of Europe. The Liverpool and Manchester Railway opened a year later making exclusive use of steam power for passenger and goods trains . Before the arrival of British imports, some domestic steam locomotive prototypes were built and tested in
19285-658: Was named The Elephant , which on 5 May 1835 hauled a train on the first line in Belgium, linking Mechelen and Brussels. In Germany, the first working steam locomotive was a rack-and-pinion engine, similar to the Salamanca , designed by the British locomotive pioneer John Blenkinsop . Built in June 1816 by Johann Friedrich Krigar in the Royal Berlin Iron Foundry ( Königliche Eisengießerei zu Berlin),
19430-534: Was opened. The arid nature of south Australia posed distinctive challenges to their early steam locomotion network. The high concentration of magnesium chloride in the well water ( bore water ) used in locomotive boilers on the Trans-Australian Railway caused serious and expensive maintenance problems. At no point along its route does the line cross a permanent freshwater watercourse, so bore water had to be relied on. No inexpensive treatment for
19575-588: Was part of the Virgin CrossCountry network with services to the North of England and Scotland via Oxford and Birmingham New Street . From June 2005 until May 2018, Paddington was the terminus for Heathrow Connect services. Until December 2018, Chiltern Railways operated a weekday parliamentary service from South Ruislip and to High Wycombe via the Acton–Northolt line . It ceased when
19720-471: Was renamed First Great Western in 1998, and merged with First Great Western Link and Wessex Trains to form the Greater Western franchise in 2006. In 2015, the operating company was renamed Great Western Railway . In the mid 1990s, the Great Western Main Line approaches and platforms were electrified as part of the Heathrow Express project. Opening in 1998, the airport rail link connects
19865-456: Was reorganised in 1967, abolishing the distinction between arrival and departure platforms that had been a feature of Paddington since opening. A new set of sidings was built south of Royal Oak, and the track curve into Paddington was eased. Services to the Midlands were rerouted via Marylebone during this time. The station concourse was enlarged in 1970, and the ticket office was rebuilt in
20010-528: Was requested for the funeral of King George VI in February 1952; however, Windsor Castle was under repair at Swindon, so the number, name plate and commemorative plaques were swapped with No. 7013 Bristol Castle for the event. Following the funeral, the two locomotives retained their exchanged names and numbers, but the commemorative plaques were returned. No. 7013 (originally 4082) was scrapped in September 1964 while number 4082 (originally 7013) survived until February 1965. Withdrawal of steam power started in
20155-515: Was sculpted by John Doubleday and funded by the Bristol and West Building Society . Between 1989 and 1999, the Lawn was re-roofed and separated from the concourse by a glass screen wall. It is surrounded by shops and cafes on several levels. As with other major British railway termini, Paddington is owned and managed by Network Rail . Train services were privatised in 1996, initially to Great Western Trains and Thames Trains . The former company
20300-577: Was soon established. In 1830, the Baltimore and Ohio Railroad 's Tom Thumb , designed by Peter Cooper , was the first commercial US-built locomotive to run in America; it was intended as a demonstration of the potential of steam traction rather than as a revenue-earning locomotive. The DeWitt Clinton , built in 1831 for the Mohawk and Hudson Railroad , was a notable early locomotive. As of 2021 ,
20445-403: Was supplied at stopping places and locomotive depots from a dedicated water tower connected to water cranes or gantries. In the UK, the US and France, water troughs ( track pans in the US) were provided on some main lines to allow locomotives to replenish their water supply without stopping, from rainwater or snowmelt that filled the trough due to inclement weather. This was achieved by using
20590-488: Was the first commercially successful steam locomotive. Locomotion No. 1 , built by George Stephenson and his son Robert's company Robert Stephenson and Company , was the first steam locomotive to haul passengers on a public railway, the Stockton and Darlington Railway , in 1825. Rapid development ensued; in 1830 George Stephenson opened the first public inter-city railway, the Liverpool and Manchester Railway , after
20735-404: Was to use built-up bar frames, with the smokebox saddle/cylinder structure and drag beam integrated therein. In the 1920s, with the introduction of "superpower", the cast-steel locomotive bed became the norm, incorporating frames, spring hangers, motion brackets, smokebox saddle and cylinder blocks into a single complex, sturdy but heavy casting. A SNCF design study using welded tubular frames gave
20880-413: Was to work a 480-ton train from King's Cross to Doncaster , and LNER officials fully expected the smaller, lighter engine to encounter problems climbing Holloway Bank. However, railway writer Cecil J. Allen records that the GWR locomotive made a faster start from King's Cross to Finsbury Park than any LNER Pacific he had recorded up to that time, and over the trial Pendennis Castle kept well within
21025-480: Was undergoing a mainline standard overhaul to be completed by late 2024. 4079 was originally planned to operate on the mainline following completion of its overhaul, but Didcot later announced that they intended to stop operating on the mainline, running only on heritage railways. Upon completion of its restoration, 7027 is also intended to operate only on heritage railways, however debate over its restoration continued. Steam locomotive A steam locomotive
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