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The Berry Brothers Bolt Works is a former factory in Columbus, Ohio, United States.For more than a century after its 1888 construction, the factory produced machine tools using original equipment.
A pipe clamp is a type of clamp often employed in piping, woodworking, and cabinet shops. Pipe clamps for woodwork or cabinet shops are usually composed of commercially manufactured clamp heads or "jaws" and a length of common threaded pipe. [1] [2] The capacity of the clamp is determined by the length of the pipe used.
In 1957, Oswald Thorsman from Sweden received a patent for a plastic wall plug; around the same time, German inventor Artur Fischer created the plastic Fischer wall plug. [ 4 ] [ 5 ] The Fischer wall plug, due to its innovative shape, was the first to be suitable for all wall types, and has since been the most produced and sold wall plug worldwide.
Around 1896, with his business in machinery progressing, Hubbell's next patent was a major breakthrough in the fastener industry: the process and machinery for cold rolled screw threads which reduced the rate of material lost in production by more than 50%. He designed and built progressive blanking and forming dies, patented machinery to slot ...
Typical fasteners (US quarter shown for scale) A fastener (US English) or fastening (UK English) [1] is a hardware device that mechanically joins or affixes two or more objects together. In general, fasteners are used to create non-permanent joints; that is, joints that can be removed or dismantled without damaging the joining components. [2]
A hex screw drive uses six-sided fastener heads, and the fastener is known as a hex head cap screw. It can be turned with an adjustable wrench, combination wrench and 6- or 12-point sockets. The hex drive is better than square drive for locations where surrounding obstacles limit wrenching access, because smaller wrench-swing arcs can still ...