Abstract A cartridge adapted for mounting on a projector encloses a rotatably mounted reel on which film is wound. A light source, which is preferably mounted in the projector frame, registers with an opening in one edge of the cartridge to light the space within the cartridge between the peripheral surface of a portion of the film wound on tee reel and the adjacent walls of the cartridge. One face of the cartridge is provided with a radially disposed slot having its outer end adjacent the light source. A transparent or translucent indicator scale is mounted on one face of the cartridge in position to cover the slot so that the portion of the indicator scale extending radially beyond the outer perimeter of the film wound on the reel is illuminated by the light within the cartridge. An index covering part of the one face of the cartridge, but having an opening through which the indicator scale is exposed comprises parallel lines intersecting various indicia on said scale, whereby scene sequences identified by short descriptions entered on said lines are keyed directly to specific indicia on the scale.
A cartridge adapted for mounting on a projector and enclosing a rotatably mounted reel on which film is wound, a translucent indicator scale forming a portion one face of said cartridge extending from the axis and at least to the perimeter of said reel and illuminating means for directing light supported on said projector substantially longitudinally along said indicator scale and directing light onto the outer perimeter of the film would on said reel, said light illuminating the portion of said indicator scale extending radially beyond the outer perimeter of the film.
Claim 2
Dependent Claim
92 words
A cartridge adapted for mounting on a projector and enclosing a rotatably mounted reel on which film is wound, a translucent indicator scale forming a portion one face of said cartridge extending from the axis and at least to the perimeter of said reel and illuminating means for directing light supported on said projector substantially longitudinally along said indicator scale and directing light onto the outer perimeter of the film would on said reel, said light illuminating the portion of said indicator scale extending radially beyond the outer perimeter of the film.
Claim 3
Dependent Claim
44 words
A cartridge as recited in claim 1, in which said illuminating means is mounted in said projector in such position that the outer end of said indicator scale is adjacent one end of said illuminating means when said cartridge is mounted on said projector.
Claim 4
Dependent Claim
31 words
A cartridge as recited in claim 1 and having a marked area on said face thereof for receiving short descriptive identifications of various scenes depicted on the film within said cartridge.
Claim 5
Dependent Claim
34 words
A cartridge as recited in claim 3 and having a label secured to said face, said marked area being located on said label, and said label overlying the outer end of said indicator scale.
Claim 6
Dependent Claim
39 words
A cartridge as recited in claim 3, in which said marked area is divided by parallel lines intersecting indicia on said indicator scale, whereby various scenes on said film are keyed directly to specific indicia on said indicator scale.