US PATENT SUBCLASS 254 / 110
.~.~.~ Reversing

Current as of: June, 1999
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254 /   HD   IMPLEMENTS OR APPARATUS FOR APPLYING PUSHING OR PULLING FORCE

105  DF  STEP-BY-STEP TRAVELING BAR {3}
108  DF  .~ Pawl actuated {2}
109  DF  .~.~ Multiple driving pawls {1}
110.~.~.~ Reversing

DEFINITION

Classification: 254/110

Reversing:

(under subclass 109) Pushing and pulling implement of the step-by-step traveling bar type comprising a plurality of alternately acting driving pawls and provided with means for continuously actuating the pawls in such sequence as to reverse the movement, as for gradually lowering a load.