US PATENT SUBCLASS 254 / 313
.~.~.~.~ Including contacting friction wheels having noncollinear axes of rotation in drive

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

264  DF  APPARATUS FOR HAULING OR HOISTING LOAD, INCLUDING DRIVEN DEVICE WHICH CONTACTS AND PULLS ON CABLE {4}
266  DF  .~ Device includes rotatably driven, cable contacting drum {34}
278  DF  .~.~ Plural drums or drum with plural distinct sections {7}
294  DF  .~.~.~ Having common drive source or mechanically interlinked drive trains {10}
313.~.~.~.~ Including contacting friction wheels having noncollinear axes of rotation in drive

DEFINITION

Classification: 254/313

Including contacting friction wheels having noncollinear axes of rotation in drive:

(under subclass 294) Apparatus wherein the interlinked drive trains include two or more wheels which (a) have their axes of rotation not forming segments of the same line, and (b) have their circumferences in contact with each other when transmitting power to at least one of the drums, the surface friction created by the contact of the wheels is solely relied upon for the transmitting of rotary motion from one wheel to another wheel.