US PATENT SUBCLASS 74 / 169
.~.~.~ Driven ratchet-bar and power dog

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

111  DF  MECHANICAL MOVEMENTS (INTERMITTENT GRIP TYPE) {3}
144  DF  .~ Grip units and features {5}
162  DF  .~.~ Grip features {4}
169.~.~.~ Driven ratchet-bar and power dog

DEFINITION

Classification: 74/169

(under subclass 162) Devices, in which the power imparting element is in the form of a pawl adapted to cooperate with the teeth of a ratchet bar which comprises the driven member.

SEE OR SEARCH CLASS

254, Implements or Apparatus for Applying Pushing or Pulling Force,

108+, 206+, and 237+ for pawl operated step-by-step traveling bar type implements or apparatus.