US PATENT SUBCLASS 74 / 135
.~.~.~.~.~ Inwardly facing racks

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

111  DF  MECHANICAL MOVEMENTS (INTERMITTENT GRIP TYPE) {3}
126  DF  .~ Oscillation or reciprocation to intermittent unidirectional motion {5}
130  DF  .~.~ Rack actuator {2}
133  DF  .~.~.~ Oscillating {1}
134  DF  .~.~.~.~ Multiple acting {1}
135.~.~.~.~.~ Inwardly facing racks

DEFINITION

Classification: 74/135

(under subclass 134) Mechanisms, in which the rack is provided with inwardly facing teeth and is effective in both directions of its movement.