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The Rawlplug Group is a company involved in the production of fixings, fasteners, and other tools.
Rawlings Brothers, a small plumbing and electrical engineering company, was founded in 1887 in London. In 1910, the company was awarded a contract by the British Museum, which required them to unobtrusively fix electrical fittings to the museum walls. The contract led to the invention and patenting of the world's first wall plug, which became a standard solution for attaching things to walls. [1] John Joseph Rawlings, who is credited with the invention of the wall plug, named his product Rawlplug, using the first syllable of his last name, and renamed his business Rawlplug in 1919.
During the inter-war period, the Rawlplug company patented some new fixing methods and tools. [2] [3] [4] After the war, it invented the first metal drywall anchor in 1947. [5]
The company continued to sell its products worldwide and in 1998 became the first British producer to attain ETA certification. [6] Since the death of John Joseph Rawlings, the business changed hands a few times until in 2005 it was bought by Koelner Group, a Wroclaw-based manufacturer. [7]
Eli Whitney Jr. was an American inventor, widely known for inventing the cotton gin in 1793, one of the key inventions of the Industrial Revolution that shaped the economy of the Antebellum South.
Thomas Alva Edison was an American inventor and businessman. He developed many devices in fields such as electric power generation, mass communication, sound recording, and motion pictures. These inventions, which include the phonograph, the motion picture camera, and early versions of the electric light bulb, have had a widespread impact on the modern industrialized world. He was one of the first inventors to apply the principles of organized science and teamwork to the process of invention, working with many researchers and employees. He established the first industrial research laboratory.
George Westinghouse Jr. was an American entrepreneur and engineer based in Pennsylvania who created the railway air brake and was a pioneer of the electrical industry, receiving his first patent at the age of 19. Westinghouse saw the potential of using alternating current for electric power distribution in the early 1880s and put all his resources into developing and marketing it. This put Westinghouse's business in direct competition with Thomas Edison, who marketed direct current for electric power distribution. In 1911 Westinghouse received the American Institute of Electrical Engineers's (AIEE) Edison Medal "For meritorious achievement in connection with the development of the alternating current system." He founded the Westinghouse Electric Corporation in 1886.
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A spark plug is an electrical device used in an internal combustion engine to produce a spark which ignites the air-fuel mixture in the combustion chamber. As part of the engine's ignition system, the spark plug receives high-voltage electricity which it uses to generate a spark in the small gap between the positive and negative electrodes. The timing of the spark is a key factor in the engine's behaviour, and the spark plug usually operates shortly before the combustion stroke commences.
Elihu Thomson was an English-born American engineer and inventor who was instrumental in the founding of major electrical companies in the United States, the United Kingdom and France.
Craftsman is a line of tools, lawn and garden equipment, and work wear. Originally a house brand established by Sears, the brand is now owned by Stanley Black & Decker.
Reuben Carlton "Carl" Baker, Sr. was an American oil industry drilling pioneer. He established Baker Oil Tools in 1907 after developing a casing shoe that revolutionized cable tool drilling. In 1903, he introduced the offset bit for cable tool drilling to enable casing wells in hard rock and in 1912 the cement retainer that allowed casing to be cemented in the wells. Baker further improved the process with the float shoe in 1923. Having only a third grade education, he obtained more than 150 patents on oil drilling tools. Baker Oil Tools merged with Hughes Tool Company in 1987 to form Baker Hughes Incorporated.
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Rawlings Sporting Goods is an American sports equipment manufacturing company based in Town and Country, Missouri. Founded in 1887, Rawlings currently specializes in baseball and softball clothing and equipment, producing gloves, bats, balls, protective gear, batting helmets, uniforms, bags. Footwear includes sneakers, and sandals. The company also sells other accessories such as belts, wallets, and sunglasses. Former products manufactured by Rawlings included American football, basketball, soccer, and volleyball balls.
A wall plug also known as an anchor (US) or "Rawlplug" (UK), is a fibre or plastic insert used to enable the attachment of a screw in material that is porous or brittle or that would otherwise not support the weight of the object attached with the screw. It is a type of anchor that, for example, allows screws to be fitted into masonry walls. In US English, mentions of drywall anchors are sometimes meant to refer specifically to the type of plastic wall plugs with expandable wings for hollow walls, in contradistinction with mollies and toggle bolts.
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John Joseph Rawlings was a British engineer and inventor of the wall plug, also known from his name as the rawlplug. He invented it in around 1910-11, registered a patent in 1911, trademarked the rawlplug name in 1912 and was granted the patent in 1913. In 1919 his company, formerly known as the Rawlings Brothers, was renamed to Rawlplug Ltd.
The Lemelson Foundation is an American 501(c)(3) private foundation. It was started in 1993 by Jerome H. Lemelson and his wife Dorothy. The foundation held total net assets of US$444,124,049 at the end of 2020 and US$484,432,021 at the end of 2021.
Megger Group Limited is a British manufacturing company that manufactures electronic test equipment and measuring instruments for electrical power applications.
SawStop is an American table saw manufacturer headquartered in Tualatin, Oregon. The company was founded in 2000 to sell table saws that feature a patented automatic braking system that stops the blade upon contact with skin or flesh.
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There are approximately 20 types in common use around the world, such as AC power plugs and sockets, and many obsolete socket types which are still found in older buildings.