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Riving Knife
A riving knife is a safety device installed on a table saw, circular saw, or radial arm saw used for woodworking. Attached to the saw's arbor, it is fixed relative to the blade and moves with it as blade depth is adjusted. A ''splitter'' is a similar device attached to a trunion on the far side of the saw and fixed in relation to the saw table, which must be removed to make any non-through cuts or dados within the depth of the wood. Function A table saw is typically used for cross-cutting and ripping; cross-cutting slices a board across its grain width-wise, ripping cuts lengthwise along the grain. Various conditions experienced while cutting either way can cause a partially cut board to move, twist, or have the saw blade's kerf close up and bind the blade. Poor blade or fence alignment, operator error, or pre-existing stresses in the wood released by cutting may cause these different and dangerous conditions. A riving knife rides within the kerf, pivoting on the saw's arb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haltern Am See, Sythen, Werkzeughalle Der Quarzwerke -- 2015 -- 4452
Haltern am See (''Haltern at the lake'', before December 2001 only Haltern) is a town and a municipality in the district of Recklinghausen, in North Rhine-Westphalia, Germany. It is situated on the Lippe and the Wesel–Datteln Canal, approx. north of Recklinghausen. The town is about north of Düsseldorf. History Former ''Halteren'' was founded on February 3 in 1289. They received the town charter by the prince-bishop of Münster, Everhard von Dienstag. During Kristallnacht (1938), the town's synagogue, Jewish cemetery and the houses and shops belonging to the town's Jews were vandalised. Jews were deported to concentration camps, the last five of whom were deported in January 1942. Only one of the town's Jews survived the Holocaust: Alexander Lebenstein, after whom a school is named. In March 2015, the town received international attention when 16 students and two teachers from the Joseph-König-Gymnasium in Haltern, were killed in the Germanwings Flight 9525 crash in the Fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hand Saw
In woodworking and carpentry, hand saws, also known as "panel saws", are used to cut pieces of wood into different shapes. This is usually done in order to join the pieces together and carve a wooden object. They usually operate by having a series of sharp points of some substance that is harder than the wood being cut. The hand saw is a bit like a tenon saw, but with one flat, sharp edge. Handsaws have been around for thousands of years. Egyptian hieroglyphics exist depicting ancient woodworkers sawing boards into pieces. Ancient bow saws have been found in Japan. The cut patterns on ancient boards may be observed sometimes to bear the unique cutting marks left by saw blades, particularly if the wood was not 'smoothed up' by some method. As for preservation of handsaws, twenty-four saws from eighteenth-century England are known to survive.Olmert, Michael (1996). ''Milton's Teeth and Ovid's Umbrella: Curiouser & Curiouser Adventures in History'', p.178. Simon & Schuster, New Yo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stop Block
A stop block is a simple reusable jig used in metalworking and woodworking to locate a common edge of a workpiece so that multiple workpieces can get the same operation performed quickly. Common applications are table saws and manual milling machines, but they are also used on miter saws, band saws, radial arm saws, and abrasive saw __NOTOC__ An abrasive saw, also known as a cut-off saw or chop saw, is a circular saw (a kind of power tool) which is typically used to cut hard materials, such as metals, tile, and concrete. The cutting action is performed by an abrasive disc, ...s. Stop blocks used in metalworking usually have a small rod that slides parallel to the vise jaws and can be tightened in a particular position. Stop blocks in woodworking are typically nothing more than wood blocks clamped to a rip fence or auxiliary fence so that a distance from the saw blade can be maintained between cuts. Wednesday, 25 July 2018 References Metalworking tools Woodworking ji ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hearst Magazine Media, Inc
Hearst may refer to: Places * Hearst, former name of Hacienda, California, United States * Hearst, Ontario, town in Northern Ontario, Canada * Hearst, California, an unincorporated community in Mendocino County, United States * Hearst Island, an island in Antarctica * Hearst Castle, a mansion built by William Randolph Hearst in San Simeon, California, United States * Hearst Block, a provincial government building in Toronto, Ontario, Canada People * Hearst (surname) * William Randolph Hearst (1863–1951), newspaper magnate * Hunter Hearst Helmsley (b. 1969), WWE professional wrestler Arts, entertainment, and media * Hearst College, a fictional College in the CW series ''Veronica Mars'' * Hearst Communications, a privately held media conglomerate * Hearst Television, Hearst Communications' broadcast television division (formerly Hearst-Argyle Television) Other uses * Université de Hearst, a French-language university federated with Laurentian University, based in Hearst, Ontario ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Health & Safety Executive
The Health and Safety Executive (HSE) is a UK government agency responsible for the encouragement, regulation and enforcement of workplace health, safety and welfare, and for research into occupational risks in Great Britain. It is a non-departmental public body of the United Kingdom with its headquarters in Bootle, England. In Northern Ireland, these duties lie with the Health and Safety Executive for Northern Ireland. The HSE was created by the Health and Safety at Work etc. Act 1974, and has since absorbed earlier regulatory bodies such as the Factory Inspectorate and the Railway Inspectorate though the Railway Inspectorate was transferred to the Office of Rail and Road in April 2006. The HSE is sponsored by the Department for Work and Pensions. As part of its work, HSE investigates industrial accidents, small and large, including major incidents such as the explosion and fire at Buncefield in 2005. Though it formerly reported to the Health and Safety Commission, on 1 April ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fine Woodworking
''Fine Woodworking'' is a woodworking magazine published by Taunton Press in Newtown, Connecticut, USA. History and profile The magazine began publication in 1975, with simple monochrome printing and stapled monochrome covers. The magazine focuses on the very best of woodworking techniques at the highest level of skill. Articles include practical tutorials on technique, the theory of timber, finishes or tools, as well as showcases for high-quality finished work. The magazine emphasizes high-quality work regardless of the difficulty of execution. There are many "project" articles. Notable contributors * Tage Frid * R. Bruce Hoadley * Richard Raffan Richard Raffan (born 1943) is a well-known woodturner, author, and instructor who has helped popularize the craft of woodturning since the 1970s. He was a part of the "art turning" movement that saw turned objects move into galleries where they ... Related publications Since the first issues, subscribers have collected back iss ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Featherboard
A featherboard is a safety device used when working with stationary routers or power saws such as table saws or bandsaws. The purpose of a featherboard is to apply pressure against a workpiece, keeping it flat against a machine table or fence A fence is a structure that encloses an area, typically outdoors, and is usually constructed from posts that are connected by boards, wire, rails or netting. A fence differs from a wall in not having a solid foundation along its whole length. .... Featherboard shapes and sizes vary depending on the tasks for which they are intended. A serviceable featherboard can be shop-fabricated from an approximately 3/4 × 3 × 11 inch piece of straight grained, defect-free wood cut crosswise at a 45-degree angle on one end. Several parallel cuts in the direction of the grain create fingers or "feathers" that flex in the direction of workpiece travel, preventing the workpiece from being dragged backwards by blade friction. Featherboards are also u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Underwriters Laboratories
The UL enterprise is a global safety science company headquartered in Northbrook, Illinois, composed of three organizations, UL Research Institutes, UL Standards & Engagement and UL Solutions. Established in 1894, the UL enterprise was founded as the Underwriters' Electrical Bureau (a bureau of the National Board of Fire Underwriters), and was known throughout the 20th century as Underwriters Laboratories. On January 1, 2012, Underwriters Laboratories became the parent company of a for-profit company in the U.S named UL LLC, a limited liability corporation, which took over the product testing and certification business. On June 26, 2022, the companies rebranded into three distinct organizations that make up the UL enterprise. UL Solutions partners with customers and stakeholders in more than 100 countries to help solve safety, security and sustainability challenges and is also responsible for managing and issuing the highly respected portfolio of UL Marks. The company is one of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bandsaw
A bandsaw (also written band saw) is a power saw with a long, sharp blade consisting of a continuous band of toothed metal stretched between two or more wheels to cut material. They are used principally in woodworking, metalworking, and lumbering, but may cut a variety of materials. Advantages include uniform cutting action as a result of an evenly distributed tooth load, and the ability to cut irregular or curved shapes like a jigsaw.. The minimum radius of a curve is determined by the width of the band and its kerf. Most bandsaws have two wheels rotating in the same plane, one of which is powered, although some may have three or four to distribute the load. The blade itself can come in a variety of sizes and tooth pitches (teeth per inch, or TPI), which enables the machine to be highly versatile and able to cut a wide variety of materials including wood, metal and plastic. Almost all bandsaws today are powered by an electric motor. Line shaft versions were once common but ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Popular Mechanics
''Popular Mechanics'' (sometimes PM or PopMech) is a magazine of popular science and technology, featuring automotive, home, outdoor, electronics, science, do-it-yourself, and technology topics. Military topics, aviation and transportation of all types, space, tools and gadgets are commonly featured. It was founded in 1902 by Henry Haven Windsor, who was the editor and—as owner of the Popular Mechanics Company—the publisher. For decades, the tagline of the monthly magazine was "Written so you can understand it." In 1958, PM was purchased by the Hearst Corporation, now Hearst Communications. In 2013, the US edition changed from twelve to ten issues per year, and in 2014 the tagline was changed to "How your world works." The magazine added a podcast in recent years, including regular features ''Most Useful Podcast Ever'' and ''How Your World Works''. History ''Popular Mechanics'' was founded in Chicago by Henry Haven Windsor, with the first issue dated January 11, 1902. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Table Saw
A table saw (also known as a sawbench or bench saw in England) is a woodworking tool, consisting of a circular saw blade, mounted on an arbor, that is driven by an electric motor (either directly, by belt, or by gears). The blade protrudes through the top of a table, which provides support for the material, usually wood, being cut. In most modern table saws, the depth of the cut is varied by moving the blade up and down: the higher the blade protrudes above the table, the deeper the cut that is made in the material. In some early table saws, the blade and arbor were fixed, and the table was moved up and down to expose more or less of the blade. The angle of cut is controlled by adjusting the angle of blade. Some earlier saws angled the table to control the cut angle. Types The general types of table saws are compact, benchtop, jobsite, contractor, hybrid, cabinet, and sliding table saws. Benchtop Benchtop table saws are lightweight and are designed to be placed on a table o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
