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Class Information
Number: 254/257
Name: Implements or apparatus for applying pushing or pulling force > Portable implements or apparatus for tensioning flexible material or for extracting stumps or poles > Including either force transmitting, hand held and operated lever or animal powered sweep > With material, article, or force transmitting cable engaging means movably attached to and shifting with lever > Including cooperating, relatively stationary means for intermittently locking material or cable
Description: Implements or apparatus including member or cable-locking means which is stationary relative to the lever"s pivot point and which cooperates with the lever and the engaging means attached thereto, the locking means intermittently holding and preventing movement of the member or cable when the lever is being positioned to apply a tensioning force and then releasing and allowing movement of the member or cable while the lever is applying a tensioning force.

Patents under this class:

Patent Number Title Of Patent Date Issued
7313975 Apparatus and method for measuring tension in guy wires Jan. 1, 2008
6619623 Chain pulling device Sep. 16, 2003
5942828 Transverse flux machine Aug. 24, 1999
4641816 Apparatus for stretching, loosening, and fixing a wire member Feb. 10, 1987
4423639 Apparatus for adjusting and indicating the tension in a guy line Jan. 3, 1984

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