US PATENT SUBCLASS 254 / 84
TRAVERSING JACK


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

84TRAVERSING JACK {1}
85  DF  .~> Screw


DEFINITION

Classification: 254/84

TRAVERSING JACK:

(under the class definition) Lifting jack which comprises, in addition to the lifting means, other means for moving the load or permitting it to be moved laterally other than by bodily movement of the jack as a whole.

(1) Note. Some patents for the traversing mechanism alone are included, the apparatus being designed for use as a base or support for a lifting jack. Jacks provided merely with a rocking head or base have not been placed here unless they include mechanism for positively shifting the load.

SEE OR SEARCH CLASS

104, Railways,

262+, for car-replacing jacks which both lift and traverse the vehicle by a single operation.

212, Traversing Hoists, appropriate subclasses for traversing hoists from which the load is suspended.