US PATENT SUBCLASS 40 / 496
.~.~.~ Clutch take-up


Current as of: June, 1999
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40 /   HD   CARD, PICTURE, OR SIGN EXHIBITING

446  DF  CHANGING EXHIBITOR {25}
493  DF  .~ Rotatable carrier for display item {7}
495  DF  .~.~ Disk-like {1}
496.~.~.~ Clutch take-up


DEFINITION

Classification: 40/496

Clutch take-up:

(under subclass 495) Device including means for rotating the carrier in a step-by-step motion to expose the items which means includes (1) a first means for applying torque to the carrier to rotate the carrier about its axis to select loci, and (2) a second means to then prevent further rotation of the carrier at such loci until such time as the first means is again actuated.

(1) Note. For clutch take-up devices combined with exhibitors of this class (40), see appropriate subclasses; for additional clutch take-up mechanism, see Class 74, subclass 111 and Class 192, subclass 111.

SEE OR SEARCH CLASS

74, Machine Element or Mechanism,

813+, for a clutch take-up mechanism per se, which may be used to index a rotary turret.