(under subclass 166) Subject matter in which means are provided to cause the film strip to be advanced in a direction opposite to its normal direction. Such that the motion sequence comprises pictures representing time intervals with reverse relationship to the actual action sequence.
SEE OR SEARCH THIS CLASS, SUBCLASS:
91, for mechanisms to reverse the direction of film movement during the production of transitional exposure techniques.
124, for mechanisms to rewind the film after projection or exposure.
SEE OR SEARCH CLASS
226, Advancing Material of Indeterminate Length,
49+, for the devices to reverse selectively the direction of film feed. 242, Winding, Tensioning, or Guiding,
324+, particularly subclasses 325.1 and 333+ for a reversible drive for unwinding and rewinding a machine convertible information carrier; e.g., an image film.
