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Car-Coupling.

Description: Patent for improvement in automatic car-couplings “in which the coupling-pin (worked by a rope or chain) is guided in a vertical tube extending upward from the draw-head, and is supported in position for coupling by a block sliding with the draw-head,” (lines 9-14) includes illustration.
Date: April 14, 1891
Creator: Angerstein, John F.
Item Type: Refine your search to only Patent

Clamp.

Description: Patent for a clamp "for use in in connection with hoisting-tackle for raising or lowering well-pipes..."(lines 9-10) that has one side attach to the pipe and the other side be releasable from the pipe.
Date: April 9, 1907
Creator: Danforth, Joseph B.
Item Type: Refine your search to only Patent
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