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Locking pliers being used as a substitute knob on an espresso machine. The bolt is used to set the jaws to a size slightly smaller than what is to be gripped. The jaws are then closed on the gripped object. Because of the lever action the jaws move only slightly but with much force. Locking pliers have four advantages:
Mole branded Self-grip wrench locking pliers. Thomas Robb Coughtrie (25 November 1917 – 27 August 2008) was a chartered engineer from Motherwell, Lanarkshire, Scotland.. He was credited by The Times as the inventor of the self-grip Mole wrench [1] although this conflicts with other sources which show the invention of the Vise-Grip locking pliers [2] in Nebraska, United States, with an ...
In 1924, another blacksmith, Danish immigrant William Petersen of DeWitt, Nebraska, invented the first locking pliers [4] and named them Vise-Grips. [5] In 1934, Petersen formed the Petersen Manufacturing Company to produce them. [6] In 1957, Petersen added an easy-release trigger to the design, creating the modern locking pliers design. [7]
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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.
Adjustable wrenches, industrial hand tools, power tools Atlas Copco: Stockholm, Sweden [3] Chicago Pneumatic, Edwards: Various [4] Bahco: Paris, France: Bahco: Various Chang Type Industrial Co., Ltd. Ho-li, Taichung County, Taiwan [5] Delta Machinery: Woodworking Saws Channellock: Meadville, Pennsylvania Channellock Adjustable Pilers, Hand ...
Originally developed as a blacksmiths tool, patented in 1899 Canada under CA64246A [4] by Vernon Graham Higgins and sold out of Fortuna, California by the patentee. . Advertised in the November 1899 issue of "The Blacksmith and Wheelwright", [5] an American periodical; the original variants had longer reins than the modern equivalent, and may not have had the groves in
Channellock is an American company that produces hand tools.It is best known for its pliers—the company manufactures more than 75 types and sizes of pliers [1] —particularly its eponymous style of tongue-and-groove, slip-joint pliers. [2]