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Hans Bechem
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Individual
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Gripping Jigs, Holding Jigs, And Positioning Jigs
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Abstract
2561. Bechem, H. Feb. 2. Spanners.-Adjustable spanners with sliding jaws have the handle fitted with a wedgeshaped piece, extending from both sides, for engaging the rack. The movable jaw b slides in a recess in the shank a of the fixed jaw, and is connected to the handle c fitted with the wedgeshaped tooth e. When the two jaws abut against the work, the handle is moved towards the shank a until the pawl e engages serrations thereon and forms a fulcrum, so that further movement operates the sliding jaw and grips the work.