Class Information
Number: 352/186
Name: Optics: motion pictures > Camera and/or projector drive mechanisms > With reciprocating continuously driven carrier engaging sprocket
Description: Subject matter in which a continuously driven sprocket is mounted for reciprocating movement such that the reciprocating motion just cancels the driving motion in one direction of reciprocation and adds to the sprocket motion in the other direction so as to produce an intermittent motion of the driven film.
Patents under this class:
|
