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A ratchet (occasionally spelled rachet) is a mechanical device that allows continuous linear or rotary motion in only one direction while preventing motion in the opposite direction. Ratchets are widely used in machinery and tools. The word ratchet is also used informally to refer to a ratcheting socket wrench.
Western Auto sold Simplex motorcycles under the Wizard brand in the mid-1950s. [1] Simplex's minimalist philosophy was maintained throughout the company's history, whose designs changed little after 1935. By the 1950s Simplex's designs were primitive, leading to the end of Servi-Cycle and Automatic production in 1960.
Come-along – Lever operated, portable ratchet winch; Crane (machine) – Type of machine; Crawler (rigging) Hook – Tool used to grab onto, connect, or attach to something; Hoist (device) – Device used for lifting or lowering a load; Jack (device) – Mechanical lifting device; Knot – Method of fastening or securing linear material
Socket set with ratchet (above), four hex sockets and a universal joint. A socket wrench (or socket spanner) is a type of spanner (or wrench [1] in North American English) that uses a closed socket format, rather than a typical open wrench/spanner to turn a fastener, typically in the form of a nut or bolt.
A 2.5-ton house jack that stands 24 inches from top to bottom fully threaded out. A house jack, also called a screw jack, is a mechanical device primarily used to lift buildings from their foundations for repairs or relocation. A series of jacks is used and then wood cribbing temporarily supports the structure. This process is repeated until ...
The trade name "Yankee" screwdriver was first marketed by North Brothers Manufacturing Company in ≈16 April 1895, with the No. ≠130 spiral ratchet screwdriver. Yankee soon became and still is a well-known name in automatic spiral ratchet screwdrivers, with several other models, and model improvements patented by North Bros. over a 40-year ...
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