US PATENT SUBCLASS 242 / 349
.~ With particular drive

Current as of: June, 1999
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242 /   HD   WINDING, TENSIONING, OR GUIDING

324  DF  UNWINDING AND REWINDING A MACHINE CONVERTIBLE INFORMATION CARRIER (E.G., MAGNETIC TAPE OR PHOTOGRAPHIC FILM) {13}
349.~ With particular drive {7}
350  DF  .~.~> Manual
351  DF  .~.~> Nonelectrical motor
352  DF  .~.~> Simultaneous drive to supply and take-up coils {3}
353  DF  .~.~> With yieldable loop former
354  DF  .~.~> Particular linear feeder (e.g., capstan or sprocket) {2}
355  DF  .~.~> With brake or stop {1}
356  DF  .~.~> Alternately or differently driven coils {4}

DEFINITION

Classification: 242/349

With particular drive:

(under subclass 324) Subject matter wherein special significance is attributed to a mechanism for causing the information-bearing carrier to be unwound or rewound, which mechanism may include one or more specific (a) energy source, (b) energy converter, (c) transmission, (d) coupling, (e) brake or stop, or (f) controller.

SEE OR SEARCH THIS CLASS, SUBCLASS:

540+, and 564+, for a particular drive in a winding or unwinding machine of elongated material.

SEE OR SEARCH CLASS

74, Machine Element or Mechanism, for a transmission, mechanical movement, or component of general use.

192, Clutches and Power-Stop Control, for a drive mechanism controller.

352, Optics: Motion Pictures, for a detail of a drive means peculiar to a motion picture projector.

360, Dynamic Magnetic Information Storage or Retrieval, particularly 83, 85, 89 through 96.6, 132, and 134 for carrier support structure combined with structure peculiar to the transducing of a magnetic information signal.

396, Photography, appropriate subclasses and particularly

387+, for a camera structure with winding, feeding, or tensioning film and subclasses 612+ for photos:graphic medium feed in a fluid treating apparatus.