66-532: A car wash is a facility for cleaning automobiles. It may also refer to: (Alphabetical by series title) Car wash A car wash , or auto wash , is a facility used to clean the exterior, and in some cases the interior, of cars . Car washes can be self-service , full-service (with attendants who wash the vehicle), or fully automated (possibly connected to a filling station ). Car washes may also be events where people pay to have their cars washed by volunteers, often using less specialized equipment, as
132-503: A fundraiser . The first U.S. patent for a mechanized car wash was filed in 1900 and soon followed by "auto laundries". The Automobile Laundry in Detroit , Michigan, opened in 1914 by Frank McCormick and J.W. Hinkle, is considered the first business in the U.S. to adopt the name "car wash" for their services. Manual car wash operations, which used manpower to push or move the cars through stages, peaked at 32 drive-through facilities in
198-502: A (near-) synonym both by Harris and in later language derives ultimately (via Old French ) from Latin ingenium 'ingenuity, an invention'. The hand axe , made by chipping flint to form a wedge , in the hands of a human transforms force and movement of the tool into a transverse splitting forces and movement of the workpiece. The hand axe is the first example of a wedge , the oldest of the six classic simple machines , from which most machines are based. The second oldest simple machine
264-421: A contouring roof jet or small circular assemblies with nozzles of different shapes and sizes mounted on arches. Mitters, side brushes, top brushes, and/or wraps outfitted with chamois - or microfiber -based material may follow the dryers. At "full-service" car washes, the car's exterior is washed mechanically, by hand, or using a combination of both, with attendants available to dry the vehicle manually and clean
330-584: A decline in the number of individuals washing their cars themselves. The average revenue per car wash location is reported to be around $ 1.5 million. Some municipalities in the United States have enacted saturation bans due to the number of new car wash locations being constructed in clusters. The following are forms of car washing. In modern car wash facilities, whether tunnel, in-bay automatic, or self-serve, detergents and other cleaning solutions are designed to loosen and eliminate dirt and grime. This
396-401: A lever is modeled as a hinged or revolute joint . Wheel: The wheel is an important early machine, such as the chariot . A wheel uses the law of the lever to reduce the force needed to overcome friction when pulling a load. To see this notice that the friction associated with pulling a load on the ground is approximately the same as the friction in a simple bearing that supports the load on
462-420: A machine is "a device for applying power or changing its direction."McCarthy and Soh describe a machine as a system that "generally consists of a power source and a mechanism for the controlled use of this power." Human and animal effort were the original power sources for early machines. Waterwheel: Waterwheels appeared around the world around 300 BC to use flowing water to generate rotary motion, which
528-470: A machine provides a way to understand the performance of devices ranging from levers and gear trains to automobiles and robotic systems. The German mechanician Franz Reuleaux wrote, "a machine is a combination of resistant bodies so arranged that by their means the mechanical forces of nature can be compelled to do work accompanied by certain determinate motion." Notice that forces and motion combine to define power . More recently, Uicker et al. stated that
594-838: A mechanical system is assembled from components called machine elements . These elements provide structure for the system and control its movement. The structural components are, generally, the frame members, bearings, splines, springs, seals, fasteners and covers. The shape, texture and color of covers provide a styling and operational interface between the mechanical system and its users. The assemblies that control movement are also called " mechanisms ." Mechanisms are generally classified as gears and gear trains , which includes belt drives and chain drives , cam and follower mechanisms, and linkages , though there are other special mechanisms such as clamping linkages, indexing mechanisms , escapements and friction devices such as brakes and clutches . The number of degrees of freedom of
660-500: A mechanism, or its mobility, depends on the number of links and joints and the types of joints used to construct the mechanism. The general mobility of a mechanism is the difference between the unconstrained freedom of the links and the number of constraints imposed by the joints. It is described by the Chebychev–Grübler–Kutzbach criterion . The transmission of rotation between contacting toothed wheels can be traced back to
726-412: A point farther from the pivot is greater than the velocity of a point near the pivot, forces applied far from the pivot are amplified near the pivot by the associated decrease in speed. If a is the distance from the pivot to the point where the input force is applied and b is the distance to the point where the output force is applied, then a/b is the mechanical advantage of the lever. The fulcrum of
SECTION 10
#1732779529522792-430: A pressure vessel; the expanding steam drives a piston or a turbine. This principle can be seen in the aeolipile of Hero of Alexandria. This is called an external combustion engine . An automobile engine is called an internal combustion engine because it burns fuel (an exothermic chemical reaction) inside a cylinder and uses the expanding gases to drive a piston . A jet engine uses a turbine to compress air which
858-534: A programmable drum machine , where they could be made to play different rhythms and different drum patterns. During the Renaissance , the dynamics of the Mechanical Powers , as the simple machines were called, began to be studied from the standpoint of how much useful work they could perform, leading eventually to the new concept of mechanical work . In 1586 Flemish engineer Simon Stevin derived
924-459: A specific application of output forces and movement, (iii) a controller with sensors that compare the output to a performance goal and then directs the actuator input, and (iv) an interface to an operator consisting of levers, switches, and displays. This can be seen in Watt's steam engine in which the power is provided by steam expanding to drive the piston. The walking beam, coupler and crank transform
990-646: A system of mechanisms that shape the actuator input to achieve a specific application of output forces and movement. They can also include computers and sensors that monitor performance and plan movement, often called mechanical systems . Renaissance natural philosophers identified six simple machines which were the elementary devices that put a load into motion, and calculated the ratio of output force to input force, known today as mechanical advantage . Modern machines are complex systems that consist of structural elements, mechanisms and control components and include interfaces for convenient use. Examples include:
1056-403: A wide range of vehicles , such as trains , automobiles , boats and airplanes ; appliances in the home and office, including computers, building air handling and water handling systems ; as well as farm machinery , machine tools and factory automation systems and robots . The English word machine comes through Middle French from Latin machina , which in turn derives from
1122-436: Is a physical system that uses power to apply forces and control movement to perform an action. The term is commonly applied to artificial devices, such as those employing engines or motors, but also to natural biological macromolecules, such as molecular machines . Machines can be driven by animals and people , by natural forces such as wind and water , and by chemical , thermal , or electrical power, and include
1188-402: Is a simple and automated type of car wash that is typically coin-operated or token -operated self-service system. Newer self-service car washes offer the ability to pay with credit cards or loyalty cards . The vehicle is parked inside a large, covered bay equipped with a trigger gun and wand (a high-pressure sprayer) and a foam brush for scrubbing. When a customer inserts coins or tokens into
1254-410: Is burned with fuel so that it expands through a nozzle to provide thrust to an aircraft , and so is also an "internal combustion engine." Power plant: The heat from coal and natural gas combustion in a boiler generates steam that drives a steam turbine to rotate an electric generator . A nuclear power plant uses heat from a nuclear reactor to generate steam and electric power . This power
1320-423: Is called the cam (also see cam shaft ) and the link that is driven through the direct contact of their surfaces is called the follower. The shape of the contacting surfaces of the cam and follower determines the movement of the mechanism. A linkage is a collection of links connected by joints. Generally, the links are the structural elements and the joints allow movement. Perhaps the single most useful example
1386-603: Is distributed through a network of transmission lines for industrial and individual use. Motors: Electric motors use either AC or DC electric current to generate rotational movement. Electric servomotors are the actuators for mechanical systems ranging from robotic systems to modern aircraft . Fluid Power: Hydraulic and pneumatic systems use electrically driven pumps to drive water or air respectively into cylinders to power linear movement . Electrochemical: Chemicals and materials can also be sources of power. They may chemically deplete or need re-charging, as
SECTION 20
#17327795295221452-491: Is in contrast to earlier times, when hydrofluoric acid , a hazardous chemical, was commonly used as a cleaning agent in the industry by some operators. There has been a move in the industry to shift to safer cleaning solutions. Most car wash facilities are legally required to treat and/or reuse their water and may be required to maintain wastewater discharge permits. This is in contrast to unregulated facilities or even driveway washing (at one's home), where wastewater can end up in
1518-401: Is made by chipping stone, generally flint, to form a bifacial edge, or wedge . A wedge is a simple machine that transforms lateral force and movement of the tool into a transverse splitting force and movement of the workpiece. The available power is limited by the effort of the person using the tool, but because power is the product of force and movement, the wedge amplifies the force by reducing
1584-421: Is not physically touched during a touchless wash, the vehicle is at a lower risk of being damaged. However, touchless washes have a harder time cleaning off tougher materials or reaching difficult-to-reach locations on vehicles, and their usage of stronger chemicals can potentially damage a vehicle's paint finish. The primary environmental considerations for car washing are: The use of water supplies and energy
1650-491: Is self-evident since car washes are users of such resources. The professional car wash industry has made strides in reducing its environmental footprint, a trend that will continue accelerating due to regulation and consumer demand. Many car washes use water reclamation systems to significantly reduce water usage and a variety of energy usage reduction technologies. These systems may be mandatory where water restrictions are in place. Contamination of surface waters may arise from
1716-420: Is the case with batteries , or they may produce power without changing their state, which is the case for solar cells and thermoelectric generators . All of these, however, still require their energy to come from elsewhere. With batteries, it is the already existing chemical potential energy inside. In solar cells and thermoelectrics, the energy source is light and heat respectively. The mechanism of
1782-421: Is the planar four-bar linkage . However, there are many more special linkages: A planar mechanism is a mechanical system that is constrained so the trajectories of points in all the bodies of the system lie on planes parallel to a ground plane. The rotational axes of hinged joints that connect the bodies in the system are perpendicular to this ground plane. A spherical mechanism is a mechanical system in which
1848-516: The Antikythera mechanism of Greece and the south-pointing chariot of China . Illustrations by the renaissance scientist Georgius Agricola show gear trains with cylindrical teeth. The implementation of the involute tooth yielded a standard gear design that provides a constant speed ratio. Some important features of gears and gear trains are: A cam and follower is formed by the direct contact of two specially shaped links. The driving link
1914-517: The Greek ( Doric μαχανά makhana , Ionic μηχανή mekhane 'contrivance, machine, engine', a derivation from μῆχος mekhos 'means, expedient, remedy' ). The word mechanical (Greek: μηχανικός ) comes from the same Greek roots. A wider meaning of 'fabric, structure' is found in classical Latin, but not in Greek usage. This meaning is found in late medieval French, and is adopted from
1980-584: The Twelfth Dynasty (1991–1802 BC). The screw , the last of the simple machines to be invented, first appeared in Mesopotamia during the Neo-Assyrian period (911–609) BC. The Egyptian pyramids were built using three of the six simple machines, the inclined plane, the wedge, and the lever. Three of the simple machines were studied and described by Greek philosopher Archimedes around
2046-497: The lever , pulley and screw as simple machines . By the time of the Renaissance this list increased to include the wheel and axle , wedge and inclined plane . The modern approach to characterizing machines focusses on the components that allow movement, known as joints . Wedge (hand axe): Perhaps the first example of a device designed to manage power is the hand axe , also called biface and Olorgesailie . A hand axe
Car wash (disambiguation) - Misplaced Pages Continue
2112-677: The upholstery and rugs inside their cars. Some self-service car washes offer hand-held dryers. The first conveyor-driven automatic car wash appeared in Hollywood, California, in 1940. Conveyor-driven automatic car washes consist of tunnel-like buildings into which customers (or attendants) drive. Before entering the automated section of the wash tunnel, attendants may prewash customers' cars. The car wash typically starts cleaning with chemicals called presoaks applied through special arches. CTAs, or "chemical tire applicators", apply specialized formulations, which remove brake dust and build-up from
2178-516: The 3rd century BC: the lever, pulley and screw. Archimedes discovered the principle of mechanical advantage in the lever. Later Greek philosophers defined the classic five simple machines (excluding the inclined plane) and were able to roughly calculate their mechanical advantage. Hero of Alexandria ( c. 10 –75 AD) in his work Mechanics lists five mechanisms that can "set a load in motion"; lever, windlass , pulley, wedge, and screw, and describes their fabrication and uses. However,
2244-551: The French into English in the mid-16th century. In the 17th century, the word machine could also mean a scheme or plot, a meaning now expressed by the derived machination . The modern meaning develops out of specialized application of the term to stage engines used in theater and to military siege engines , both in the late 16th and early 17th centuries. The OED traces the formal, modern meaning to John Harris ' Lexicon Technicum (1704), which has: The word engine used as
2310-622: The Greeks' understanding was limited to statics (the balance of forces) and did not include dynamics (the tradeoff between force and distance) or the concept of work . The earliest practical wind-powered machines, the windmill and wind pump , first appeared in the Muslim world during the Islamic Golden Age , in what are now Iran, Afghanistan, and Pakistan, by the 9th century AD. The earliest practical steam-powered machine
2376-533: The Muslim world. A music sequencer , a programmable musical instrument , was the earliest type of programmable machine. The first music sequencer was an automated flute player invented by the Banu Musa brothers, described in their Book of Ingenious Devices , in the 9th century. In 1206, Al-Jazari invented programmable automata / robots . He described four automaton musicians, including drummers operated by
2442-459: The U.S. remained primarily led by small businesses that distinguished themselves through playful signage or building architecture. At the turn of the 21st century, the "express exterior" business model—first developed by a chain in Baton Rouge, Louisiana —began to emerge, in which computerized point of sale and queueing systems are used to manage customer throughput via automation, reducing
2508-591: The US, some state and local environmental groups (the most notable being the New Jersey Department of Environmental Protection ) have begun campaigns to encourage consumers to use professional car washes as opposed to driveway washing, including moving charity car wash fundraisers from parking lots to professional car washes. Poland, Portugal, Italy, and many other countries have no regulations regarding wastewater from car washing. Machine A machine
2574-480: The United States is estimated to have approximately 60,000 car washes that constitute a $ 14 billion industry. It has experienced steady growth, with an average annual expansion of 5% in recent years; some market analysts project the industry to double in size by 2030, partly attributed to the growth of subscription-based services. Additionally, the market share of professional car washes has grown significantly, from 50% in 1996 to an estimated 79% in 2021. This suggests
2640-628: The United States. The first semi-automatic car wash in the United States debuted in 1946 at a facility in Detroit, which used automatic pulley systems and manual brushing. Dan Hanna, encouraged by car washers in Detroit, founded a car wash in 1955 called the Rub-a-Dub in Oregon . He later formed Hanna Enterprises and reached about 31 locations. Hanna operated his wash rack until adopting a mechanized car washing system in 1959. The company became one of
2706-498: The amount of staff required. In the 2010s, this model began to be combined with subscription-based car wash services, which offer convenience and potentially lower costs for car owners compared to traditional pay-per-wash models. Due to their turnkey nature and lower staffing requirements, express exterior washes became an ubiquitous business model for the industry, resulting in many operators and private equity firms investing in opening larger chains of locations. As of 2024,
Car wash (disambiguation) - Misplaced Pages Continue
2772-409: The axle of a wheel. However, the wheel forms a lever that magnifies the pulling force so that it overcomes the frictional resistance in the bearing. The classification of simple machines to provide a strategy for the design of new machines was developed by Franz Reuleaux , who collected and studied over 800 elementary machines. He recognized that the classical simple machines can be separated into
2838-411: The bodies move in a way that the trajectories of points in the system lie on concentric spheres. The rotational axes of hinged joints that connect the bodies in the system pass through the center of these circle. A spatial mechanism is a mechanical system that has at least one body that moves in a way that its point trajectories are general space curves. The rotational axes of hinged joints that connect
2904-436: The coin box, they can choose options such as soap , tire cleaner, wax, or clear water rinse, all dispensed from the sprayer, or scrub the vehicle with the foam brush. The number of coins or tokens inserted determines when customers operate the equipment; in most instances, a minimum number of coins is necessary to start the equipment. These facilities are often equipped with separate vacuum stations that allow customers to clean
2970-575: The contaminants can be removed before the water enters sanitary systems. (Water and contaminants that enter stormwater drains are not treated and released directly into rivers, lakes, and streams.) Soil contamination is sometimes related to such surface runoff and is associated with soil contamination from underground fuel tanks or auto servicing operations which commonly are ancillary uses of car wash sites — but not an issue for car washing. For these reasons, countries like Switzerland and Germany have banned citizens from washing their cars at home. In
3036-578: The double acting steam engine practical. The Boulton and Watt steam engine and later designs powered steam locomotives , steam ships , and factories . The Industrial Revolution was a period from 1750 to 1850 where changes in agriculture, manufacturing, mining, transportation, and technology had a profound effect on the social, economic and cultural conditions of the times. It began in the United Kingdom , then subsequently spread throughout Western Europe , North America , Japan , and eventually
3102-406: The foam or cloth applicators that soft-touch washes use; instead, they rely on high-pressure washers to clean and rinse the vehicle. Sensors utilized by these washes allow for a more precise clean along with the vehicle's exact shape. To compensate for not physically contacting the vehicle, touchless washes use higher pressures and more caustic detergents than ordinary car washes. Because the vehicle
3168-443: The interior. Many full-service car washes also provide "detailing" services, which may include polishing and waxing the car's exterior by hand or machine, shampooing, and steaming interiors as well as other services to provide thorough cleaning and protection to the car. Like soft-touch car washes, touchless car washes are automated, with the vehicle passing through a tunnel where it is cleaned. However, touchless car washes do not use
3234-440: The leading manufacturers of car washing equipment and materials, including brushes, conveyor belts, tire washes, and recirculating water systems. In the late-1960's, some car washes began to adopt "flex-serve" models to accommodate customers who did not want a full interior and exterior cleaning, in which facilities such as vacuuming and hand detailing are constructed near the exit as an optional service. The car wash industry in
3300-417: The lever, pulley and wheel and axle that are formed by a body rotating about a hinge, and the inclined plane, wedge and screw that are similarly a block sliding on a flat surface. Simple machines are elementary examples of kinematic chains or linkages that are used to model mechanical systems ranging from the steam engine to robot manipulators. The bearings that form the fulcrum of a lever and that allow
3366-529: The linear movement of the piston into rotation of the output pulley. Finally, the pulley rotation drives the flyball governor which controls the valve for the steam input to the piston cylinder. The adjective "mechanical" refers to skill in the practical application of an art or science, as well as relating to or caused by movement, physical forces, properties or agents such as is dealt with by mechanics . Similarly Merriam-Webster Dictionary defines "mechanical" as relating to machinery or tools. Power flow through
SECTION 50
#17327795295223432-758: The mechanical advantage of the inclined plane, and it was included with the other simple machines. The complete dynamic theory of simple machines was worked out by Italian scientist Galileo Galilei in 1600 in Le Meccaniche ("On Mechanics"). He was the first to understand that simple machines do not create energy , they merely transform it. The classic rules of sliding friction in machines were discovered by Leonardo da Vinci (1452–1519), but remained unpublished in his notebooks. They were rediscovered by Guillaume Amontons (1699) and were further developed by Charles-Augustin de Coulomb (1785). James Watt patented his parallel motion linkage in 1782, which made
3498-408: The movement. This amplification, or mechanical advantage is the ratio of the input speed to output speed. For a wedge this is given by 1/tanα, where α is the tip angle. The faces of a wedge are modeled as straight lines to form a sliding or prismatic joint . Lever: The lever is another important and simple device for managing power. This is a body that pivots on a fulcrum. Because the velocity of
3564-419: The output of one crank to the input of another. Additional links can be attached to form a six-bar linkage or in series to form a robot. A mechanical system manages power to accomplish a task that involves forces and movement. Modern machines are systems consisting of (i) a power source and actuators that generate forces and movement, (ii) a system of mechanisms that shape the actuator input to achieve
3630-403: The primary elements of a machine. Starting with four types of joints, the rotary joint, sliding joint, cam joint and gear joint, and related connections such as cables and belts, it is possible to understand a machine as an assembly of solid parts that connect these joints called a mechanism . Two levers, or cranks, are combined into a planar four-bar linkage by attaching a link that connects
3696-453: The primary protectant. A drying agent is typically applied at the end of the tunnel to remove water from the vehicle's surface before forced air drying. After the drying agent, there may be a "spot-free" rinse of soft water that has been filtered of the salts usually present and sent through semi-permeable membranes to produce highly purified water that will not leave spots. Dryers may be present in various forms, such as stationary gantries with
3762-467: The rest of the world. Starting in the later part of the 18th century, there began a transition in parts of Great Britain 's previously manual labour and draft-animal-based economy towards machine-based manufacturing. It started with the mechanisation of the textile industries, the development of iron-making techniques and the increased use of refined coal . The idea that a machine can be decomposed into simple movable elements led Archimedes to define
3828-404: The rinse discharging to storm drains, which eventually drain to rivers and lakes . Chief pollutants in such wash-water include phosphates ; oil and grease; and lead . This is almost exclusively an issue for home/driveway washing and parking lot-style charity washes. Professional carwashing is a point source of discharge that can capture these contaminants, generally in interceptor drains , so
3894-625: The storm drain and, eventually, in streams, rivers, and lakes. A chemical car wash, or waterless car wash, uses chemicals to wash and polish car surfaces. This method is claimed to be eco-friendly, but is recommended only for cars with light dirt accumulation to avoid paint damage. Mechanized car washes, especially those with brushes, may risk damaging the exterior finish. Paint finishes and car washing processes have improved. More facilities utilize "brushless" (cloth) and "touch-free" (high-pressure water) equipment, as well as modern "foam" washing wheels made of closed-cell foam. A self-serve car wash
3960-401: The surface of the wheels and tires. A high-pressure arch may direct water at the vehicle's surface at the end of a car wash's presoak. Mitters are ribbon-like components that suspend cloth strips or sheets over the tunnel The car is rinsed with fresh water immediately, followed by extra services if required. In many car washes, the first of these services is a polish wax. After the polish,
4026-402: The wax application is typically a retractable mitter or top brush and, in some cases, side brushes or wrap-around brushes. Next is a protectant, which creates a thin protective film over a vehicle's surface. Protectants generally repel water, which assists in drying the car and aiding in the driver's ability to see through their windshield during rain. A low-end wax or clear coat protectant follows
SECTION 60
#17327795295224092-399: The wheel and axle and pulleys to rotate are examples of a kinematic pair called a hinged joint. Similarly, the flat surface of an inclined plane and wedge are examples of the kinematic pair called a sliding joint. The screw is usually identified as its own kinematic pair called a helical joint. This realization shows that it is the joints, or the connections that provide movement, that are
4158-696: Was a steam jack driven by a steam turbine , described in 1551 by Taqi ad-Din Muhammad ibn Ma'ruf in Ottoman Egypt . The cotton gin was invented in India by the 6th century AD, and the spinning wheel was invented in the Islamic world by the early 11th century, both of which were fundamental to the growth of the cotton industry . The spinning wheel was also a precursor to the spinning jenny . The earliest programmable machines were developed in
4224-613: Was applied to milling grain, and powering lumber, machining and textile operations . Modern water turbines use water flowing through a dam to drive an electric generator . Windmill: Early windmills captured wind power to generate rotary motion for milling operations. Modern wind turbines also drives a generator. This electricity in turn is used to drive motors forming the actuators of mechanical systems. Engine: The word engine derives from "ingenuity" and originally referred to contrivances that may or may not be physical devices. A steam engine uses heat to boil water contained in
4290-456: Was the inclined plane (ramp), which has been used since prehistoric times to move heavy objects. The other four simple machines were invented in the ancient Near East . The wheel , along with the wheel and axle mechanism, was invented in Mesopotamia (modern Iraq) during the 5th millennium BC. The lever mechanism first appeared around 5,000 years ago in the Near East , where it
4356-491: Was used in a simple balance scale , and to move large objects in ancient Egyptian technology . The lever was also used in the shadoof water-lifting device, the first crane machine, which appeared in Mesopotamia c. 3000 BC , and then in ancient Egyptian technology c. 2000 BC . The earliest evidence of pulleys date back to Mesopotamia in the early 2nd millennium BC, and ancient Egypt during
#521478