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24-441: A seeder is a stamp -type leatherworking tool used in leather carving. It is predominantly used in floral designs to represent the seeds in the center of a flower, hence the name. Similar to other stamp-type tools, it is held vertically over the leather and struck with a wooden or rawhide mallet to create an impression in the surface of the leather. The seeder creates a small circular impression, often similar to an asterisk with

48-737: A complete picture. Oils An oil is any nonpolar chemical substance that is composed primarily of hydrocarbons and is hydrophobic (does not mix with water ) and lipophilic (mixes with other oils). Oils are usually flammable and surface active . Most oils are unsaturated lipids that are liquid at room temperature. The general definition of oil includes classes of chemical compounds that may be otherwise unrelated in structure, properties, and uses. Oils may be animal , vegetable , or petrochemical in origin, and may be volatile or non-volatile. They are used for food (e.g., olive oil ), fuel (e.g., heating oil ), medical purposes (e.g., mineral oil ), lubrication (e.g. motor oil ), and

72-456: A glass cover, to prevent mould . Leather carving, or "tooling", entails using metal implements to compress moistened leather in such a way as to give a three-dimensional effect. The surface of the leather is not intended to be cut through, as would be done in filigree . The main tools used to carve leather include: swivel knife , veiner , beveler , pear shader , seeder , various sculpting implements, and background tools. The swivel knife

96-400: A hole in the center. This tool article is a stub . You can help Misplaced Pages by expanding it . Leather crafting#Stamping The application of pigments carried by solvents or water into the pores of the leather. Can be applied to tooled or untooled leather, either for even coloration or to highlight certain areas. For example, application to a tooled piece can result in pooling in

120-407: A religious medium. It is often considered a spiritually purifying agent and is used for anointing purposes. As a particular example, holy anointing oil has been an important ritual liquid for Judaism and Christianity . Oils have been consumed since ancient times. Oils hold lots of fats and medical properties. A good example is olive oil. Olive oil holds a lot of fats within it which is why it

144-677: A stamp. The leather is shaped by the combination of pressure and heat when pressed between the die’s parts and then heated. Leather shaping or molding consists of soaking a piece of leather in water to greatly increase pliability and then shaping it by hand or with the use of objects or even molds as forms. As the leather dries it stiffens and holds its shape. Carving and stamping may be done prior to or after molding. Molding has become popular among hobbyists whose crafts are related to fantasy, goth/steampunk culture and cosplay as well as those interested in more classic styling of bags and household items. Two well known pieces of molded leather are part of

168-439: Is generally performed by using specially designed leather stamps that are struck with a mallet . Commercial stamps are available in various designs, typically geometric or representative of animals. Most stamping is performed on vegetable tanned leather that has been cased. This is the action of dampening the leather with water so that it soaks into the surface fibres. The water makes the leather softer and able to be compressed by

192-685: Is held with one finger providing downward pressure upon a stirrup-like top and drawn along the leather to outline patterns. The other tools are punch -type implements struck with a wooden, nylon, metal or rawhide mallet . The object is to add further definition, texture and depth to the cut lines made by the swivel knife and the areas around the cut lines. In the United States and Mexico, the western floral style, known as "Sheridan Style", of carving leather predominates. Usually, these are stylized pictures of acanthus or roses although, increasingly, modern leather artists are redefining and expanding

216-1202: Is no evidence that NASA has used whale oil. Some oils burn in liquid or aerosol form, generating light , and heat which can be used directly or converted into other forms of energy such as electricity or mechanical work. In order to obtain many fuel oils, crude oil is pumped from the ground and is shipped via oil tanker or a pipeline to an oil refinery . There, it is converted from crude oil to diesel fuel (petrodiesel), ethane (and other short-chain alkanes ), fuel oils (heaviest of commercial fuels, used in ships/furnaces), gasoline (petrol), jet fuel , kerosene , benzene (historically), and liquefied petroleum gas . A 42-US-gallon (35 imp gal; 160 L) barrel of crude oil produces approximately 10 US gallons (8.3 imp gal; 38 L) of diesel, 4 US gallons (3.3 imp gal; 15 L) of jet fuel, 19 US gallons (16 imp gal; 72 L) of gasoline, 7 US gallons (5.8 imp gal; 26 L) of other products, 3 US gallons (2.5 imp gal; 11 L) split between heavy fuel oil and liquified petroleum gases, and 2 US gallons (1.7 imp gal; 7.6 L) of heating oil. The total production of

240-644: Is preferred for lubricating clocks, because it does not evaporate, leaving dust, although its use was banned in the US in 1980. It is a long-running myth that spermaceti from whales has still been used in NASA projects such as the Hubble Space Telescope and the Voyager probe because of its extremely low freezing temperature. Spermaceti is not actually an oil, but a mixture mostly of wax esters, and there

264-407: Is provided for the manufacture of a large number of regularly arranged holes of regular shape in the sheet and other material. A decorative technique that is used to connect two sheets of leather or to decorate them. Pyrography (purogravure) on leather is the art of using a hot needle to make a drawing on leather. Under the influence of heat the leather takes on darker shades which subsequently become

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288-465: Is remote (and was unknown at the time of its discovery), and because it is obtained in the vicinity of rocks, underground traps, and sands. Mineral oil also refers to several specific distillates of crude oil. Several edible vegetable and animal oils, and also fats , are used for various purposes in cooking and food preparation. In particular, many foods are fried in oil much hotter than boiling water. Oils are also used for flavoring and for modifying

312-535: The background areas giving contrasts and depth. There are oil, alcohol, and water based leather dyes available. Although the water-based alternatives tend to not work as well due to poor penetration. Leather painting differs from leather dyeing in that paint remains only on the surface while dyes are absorbed into the leather. Due to this difference, leather painting techniques are generally not used on items that can or must bend nor on items that receive friction, such as belts and wallets because under these conditions,

336-481: The design being pressed or stamped into it. After the leather has been stamped, the design stays on the leather as it dries out, but it can fade if the leather becomes wet and is flexed. To make the impressions last longer, the leather is conditioned with oils and fats to make it waterproof and prevent the fibers from deforming. In embossing, a handheld tool or custom metal die is used to elevate portions of dampened leather. A die consists of two parts that function as

360-896: The excess grime and creating a layer where new grime could form but be easily washed off in the water as oil is hydrophobic. Fish oils hold the omega-3 fatty acid. This fatty acid helps with inflammation and reduces fat in the bloodstream.   Color pigments are easily suspended in oil, making it suitable as a supporting medium for paints . The oldest known extant oil paintings date from 650 AD. Oils are used as coolants in oil cooling , for instance in electric transformers . Heat transfer oils are used both as coolants (see oil cooling ), for heating (e.g. in oil heaters ) and in other applications of heat transfer. Given that they are non-polar, oils do not easily adhere to other substances. This makes them useful as lubricants for various engineering purposes. Mineral oils are more commonly used as machine lubricants than biological oils are. Whale oil

384-468: The funerary achievements of Edward, the Black Prince , the heraldic crest and shield. Carbon dioxide lasers cut through leather very smoothly, and at low power a laser cutter can etch detailed designs into leather to any desired depth although some discoloration and stiffening occurs in vegetable tanned tooling leather. Perforation – the result of punching with a pricking iron or chisel that

408-551: The manufacture of many types of paints, plastics, and other materials. Specially prepared oils are used in some religious ceremonies and rituals as purifying agents. First attested in English 1176, the word oil comes from Old French oile , from Latin oleum , which in turn comes from the Greek ἔλαιον ( elaion ), "olive oil, oil" and that from ἐλαία ( elaia ), " olive tree", "olive fruit". The earliest attested forms of

432-412: The modern economy. Crude oil originates from ancient fossilized organic materials , such as zooplankton and algae , which geochemical processes convert into oil. The name "mineral oil" is a misnomer , in that minerals are not the source of the oil—ancient plants and animals are. Mineral oil is organic. However, it is classified as "mineral oil" instead of as "organic oil" because its organic origin

456-478: The paint may crack or wear off. However, latex paints can be used to paint such flexible leather items. In the main though, a flat piece of leather, backed with a stiff board is ideal and common, though three-dimensional forms are possible so long as the painted surface remains secured. Acrylic paint is a common medium, often painted on tooled leather pictures, backed with wood or cardboard, and then framed. Unlike photographs, leather paintings are displayed without

480-438: The potential of the materials. By far the most preeminent carver in the United States was Al Stohlman . His patterns and methods have been embraced by many hobbyists, scout troops, reenacters, and craftspeople. Leather stamping involves the use of shaped implements (stamps) to create an imprint onto a leather surface. This is a form of artistic expression and many in the leathercrafting world consider it an artform. The stamping

504-399: The texture of foods (e.g. stir fry ). Cooking oils are derived either from animal fat, as butter , lard and other types, or plant oils from olive , maize , sunflower and many other species. Oils are applied to hair to give it a lustrous look, to prevent tangles and roughness and to stabilize the hair to promote growth. See hair conditioner . Oil has been used throughout history as

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528-533: The way that they are made by an organism, their chemical structure and their limited solubility in water compared to oils. They have a high carbon and hydrogen content and are considerably lacking in oxygen compared to other organic compounds and minerals; they tend to be relatively nonpolar molecules, but may include both polar and nonpolar regions as in the case of phospholipids and steroids. Crude oil, or petroleum , and its refined components, collectively termed petrochemicals , are crucial resources in

552-786: The word are the Mycenaean Greek 𐀁𐀨𐀺 , e-ra-wo and 𐀁𐁉𐀺 , e-rai-wo , written in the Linear B syllabic script. Organic oils are produced in remarkable diversity by plants, animals, and other organisms through natural metabolic processes. Lipid is the scientific term for the fatty acids , steroids and similar chemicals often found in the oils produced by living things, while oil refers to an overall mixture of chemicals. Organic oils may also contain chemicals other than lipids, including proteins , waxes (class of compounds with oil-like properties that are solid at common temperatures) and alkaloids . Lipids can be classified by

576-419: Was also used in lighting in ancient Greece and Rome. So people would use it to bulk out food so they would have more energy to burn through the day. Olive oil was also used to clean the body in this time as it would trap the moisture in the skin while pulling the grime to the surface. It was used as an ancient form of unsophisticated soap. It was applied on the skin then scrubbed off with a wooden stick pulling off

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