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An adjustable spanner (UK and most other English-speaking countries), also called a shifting spanner (Australia and New Zealand) [1] or adjustable wrench (US and Canada), [a] is any of various styles of spanner (wrench) with a movable jaw, allowing it to be used with different sizes of fastener head (nut, bolt, etc.) rather than just one fastener size, as with a conventional fixed spanner.
The first products that were developed according to ergonomic principles were the screwdrivers (1983), the adjustable wrenches (1984), wood chisels (1985) and slip-joint pliers (1986). In 1996, the Bahco Ergo concept was presented and scientifically approved as a way of preventing repetitive strain injuries and to increase productivity.
Johan Petter Johansson (December 12, 1853 – August 25, 1943), sometimes known as JP, was a Swedish inventor and industrialist.He invented a modern adjustable spanner [1] (patents in 1891 and 11 May 1892).
A square screw drive uses four-sided fastener heads which can be turned with an adjustable wrench, open-end wrench, or 8- or 12-point [67] sockets. Common in the 19th and early 20th centuries, when it was easier and cheaper to manufacture than most other drives, it is less common today (although still easy to find) because the external hex is ...
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Some Coes wrenches could be bought with wooden knife handles, recalling the company's earlier knives. In 1909, the Coes Wrench Company advertised a six-foot-long "key" wrench, shaped like a monkey wrench, for use on railroads. [7] [8] The Coes wrench designs were acquired by the toolmaker Bemis & Call of Springfield, Massachusetts, in 1928 ...
Here are 125 cute, sexy, and romantic nicknames for your boyfriend, fiancé, baby daddy, FWB—basically anyone you're getting romantic with.
The boy’s mother was knocked under the cab and the still-spinning wheel was on top of the kid’s leg, a tourist visiting from Oregon told ABC 7.. The tourist and others nearby then dropped what ...