US PATENT SUBCLASS 254 / 254
.~.~.~.~ Alternately clamping and pulling on material or cable

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

199  DF  PORTABLE IMPLEMENTS OR APPARATUS FOR TENSIONING FLEXIBLE MATERIAL OR FOR EXTRACTING STUMPS OR POLES {12}
243  DF  .~ Including either force transmitting, hand held and operated lever or animal powered sweep {8}
251  DF  .~.~ With material, article, or force transmitting cable clamping means attached to and shifting with lever {2}
253  DF  .~.~.~ Plural clamping means {2}
254.~.~.~.~ Alternately clamping and pulling on material or cable

DEFINITION

Classification: 254/254

Alternately clamping and pulling on material or cable:

(under subclass 253) Implements or apparatus in which the member or cable is alternately pulled on by each of the gripping means during the stressing operation, each means sequentially (a) gripping the member or cable while the other means releases it, (b) pulling on the member or cable as it is shifted in one direction by the lever and (c) releasing the member or cable when the other means grips and begins to

pull on the member or cable.

(1) Note. The force needed to apply or release the gripping means during the stressing operation is not provided directly by the hand of the operator.

SEE OR SEARCH THIS CLASS, SUBCLASS:

384, for load-hauling or-hoisting apparatus including a hand-held lever with plural engaging means movably attached thereto for alternately contacting and either (1) pulling on a cable attached to the load, or (2) traveling along the cable with the load.