Sound-cine-camera

Claim 1

In a sound-film-camera comprising, in combination, a compartment arranged to selectively receive a first or a second cartridge, the first cartridge being of smaller dimensions than the second cartridge and containing silent-film without a magnetic sound-track and the second cartridge being of greater dimensions than the first cartridge and containing sound-film tracked with a magnetic sound-track, sound recording means for continuously driving the sound-film and for recording sound onto the sound-film magnetic sound-track, said sound recording means comprising a capstan and a pressure roll movable in and out of engagement with the sound-film against said capstan, and said sound recording means having at least partly an operative and an inoperative condition, release means for controlling the condition of said sound-recording means and being movable between an inoperative position wherein said sound-recording means is in the operative condition and an operative position, a power transfer mechanism interconnected between said release means and said sound recording means, said power transfer mechanism comprising mechanical coupling means movable between an operative position for transferring movement of said release means to said sound recording means and an inoperative position for interrupting the interconnection of said power transfer mechanism between said release means and said sound recording means, and sensing means for sensing the type of cartridge inserted into said compartment and for controlling the position of said coupling means, said coupling means being movable into said inoperative position upon the insertion of the first cartridge in said compartment and said coupling means being movable into said operative position upon the insertion of a second cartridge into said compartment to permit said release means to operatively condition said sound recording means.