US PATENT SUBCLASS 74 / 33
.~.~.~ Alternately rotated pinion

Current as of: June, 1999
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74 /   HD   MACHINE ELEMENT OR MECHANISM

*  DD  MECHANICAL MOVEMENTS {15}
25  DF  .~ Rotary to or from reciprocating or oscillating {20}
29  DF  .~.~ Rack and pinion type {5}
33.~.~.~ Alternately rotated pinion

DEFINITION

Classification: 74/33

(under subclass 29) Mechanisms, in which the pinion is always in mesh with the rack but its direction of rotation is alternated.