Film selection and drive means in a multiple film projector

Claim 1

IN A MULTIPLE FILM PROJECTOR, IN COMBINATION, A PLURALITY OF PAIRS OF FILM SUPPORTING MEANS, THE FILM SUPPORTING MEANS IN EACH PAIR BEING SPACED FROM EACH OTHER IN A FIRST DIRECTION AND SUPPORTING THE FILM MOVABLE IN SAID FIRST DIRECTION FROM ONE TO THE OTHER OF SAID FILM SUPPORTING MEANS OF SAID PAIR, AND SAID PLURALITY OF PAIRS OF FILM SUPPORTING MEANS BEING ARRANGED SPACED FROM EACH OTHER IN A SECOND DIRECTION SUBSTANTIALLY NORMAL TO SAID FIRST DIRECTION SO THAT FILMS ARE LOCATED IN A PLANE; PROJECTOR MEANS HAVING A PAIR OF SECTIONS ARRANGED SPACED FROM AND OPPOSITE EACH OTHER AND RESPECTIVELY ON OPPOSITE SIDES OF SAID PLANE; MOVING MEANS OPERATIVELY CONNECTED TO SAID FILM SUPPORTING MEANS FOR MOVING THE SAME IN SAID SECOND DIRECTION SO THAT ANY OF SAID FILMS MAY BE SELECTIVELY MOVED INTO THE SPACE BETWEEN SAID PAIR OF SECTIONS OF SAID PROJECTOR MEANS, AT LEAST ONE OF SAID SECTIONS BEING MOVABLE IN A DIRECTION SUBSTANTIALLY NORMAL TO SAID PLANE TOWARD THE OTHER OF SAID OTHER SECTIONS SO THAT A FILM MOVED IN THE SPACE BETWEEN SAID SECTIONS WILL BE ENGAGED BY THE SAME WHEN SAID MOVABLE SECTION IS MOVED TOWARD THE OTHER OF SAID SECTIONS AND SO THAT SAID FILM DURING MOVEMENT THEREOF FROM ONE TO THE OTHER OF ITS SUPPORT MEANS MAY BE PROJECTED BY SAID PROJECTOR MEANS, SAID MOVING MEANS COMPRISING A PAIR OF ENDLESS CHAINS RESPECTIVELY LOCATED IN TWO SUBSTANTIALLY PARALLEL PLANES SPACED FROM EACH OTHER IN SAID FIRST DIRECTION AND BEING OPERATIVELY CONNECTED TO SAID FILM SUPPORTING MEANS FOR CARRYING THE LATTER, A PLURALITY OF SPROCKET WHEELS ENGAGING SAID ENDLESS CHAINS FOR GUIDING THE SAME, AND DRIVE MEANS OPERATIVELY CONNECTED TO AT LEAST ONE OF SAID SPROCKET WHEELS FOR TURNING THE SAME ABOUT ITS AXIS, WHEREBY BY DRIVING SAID ENDLESS CHAINS ONLY IN ONE DIRECTION BY SAID DRIVE MEANS ANY OF SAID FILMS MAY BE SELECTIVELY MOVED INTO THE SPACE BETWEEN SAID PAIR OF SECTIONS OF SAID PROJECTOR MEANS.