Camera take-up reel release mechanism

Claim 1

IN AN IMPROVED REEL RELEASE MECHANISM FOR A ROLL FILM CAMERA, THE COMBINATION COMPRISING: A SUPPLY ROLL FOR FILM; A TAKE-UP REEL ADAPTED WHEN ROTATED IN ONE DIRECTION TO ADVANCE A FILM FROM SAID SUPPLY ROLL TO SAID REEL FOR EXPOSURE; A MEASURING MEMBER MOVABLE BY SAID FILM AS IT IS ADVANCED; A LATCH FOR RELEASABLY HOLDING SAID MEASURING MEMBER AGAINST MOVEMENT WHEN A PREDETERMINED LENGTH OF FILM HAS BEEN ADVANCED; STORED ENERGY MEANS ADAPTED WHEN RELEASED TO ROTATE SAID REEL IN SAID ONE DIRECTION; MEANS FOR STOPPING SAID STORED ENERGY MEANS AFTER IT HAS BEEN RELEASED AND HAS ROTATED SAID REEL TO ADVANCE SAID PREDETERMINED LENGTH OF FILM; MEANS FOR ROTATING SAID SUPPLY ROLL IN A DIRECTION TO REWIND THE FILM FROM SAID REEL BACK ONTO SAID SUPPLY ROLL AFTER A GIVEN PORTION OF THE FILM HAS BEEN EXPOSED; AND MEANS INTERCONNECTING SAID STORED ENERGY MEANS AND SAID REEL AND MOVABLE BETWEEN A NORMAL FIRST POSITION IN WHICH IT DRIVINGLY CONNECTS SAID STORED ENERGY MEANS TO SAID REEL, AND A SECOND POSITION IN WHICH IT DISABLES SAID STOPPING MEANS TO ALLOW SAID STORED ENERGY MEANS TO DISSIPATE ITS ENERGY, RELEASES SAID LATCH TO FREE SAID MEASURING MEMBER, AND DISENGAGES SAID STORED ENERGY MEANS FROM SAID REEL WHEREBY SAID REEL IS FREE TO ROTATE IN SAID OPPOSITE DIRECTION UPON OPERATION OF SAID SUPPLY ROLL ROTATING MEANS TO REWIND THE EXPOSED FILM BACK ONTO SAID SUPPLY ROLL.