Film strip projection apparatus
AssigneeSoding TV GmbH & Co. Bild & Ton International
InventorsBernward Soding, Reinhard Freisleben
Life of this patent
Estimating the term…
Abstract
A projector for continuously screening a strip of transparency film having perforated margins includes means for feeding said strip in a closed path defined by said feeding means. The feeding means comprise two endless conveyor belts which are spaced apart so as to support said perforated strip margins and which are each provided with at least one lug releasably engageable in a respective perforated margin with a snap fit for anchoring the two ends of the strip to the belts and forming a loop of film.
Claims20
A film strip projector apparatus for the projection of a film strip, comprising:
- a closed substantially circular path formed in said projector apparatus about which said film strip is driven,
- an optical projection system disposed in said projector apparatus having a gate through which said film strip passes,
- said film strip being open-ended and flexible and including longitudinally extending edge portions each including perforations,
- said path including a pair of spaced apart and parallel conveyor belts mounted for circulation,
- the spacing of said conveyor belts being substantially equal to the spacing of said perforated edge portions, and
- said conveyor belts each including at least one lug for engaging said perforated edge portions to drive said openended film strip about said circular path.
A projector for continuously screening a strip of transparency film having perforated margins, including means for feeding said strip in a closed path defined by said feeding means, wherein said feeding means comprise two endless conveyor belts which are spaced apart so as to support said perforated strip margins and which are each provided with at least one lug releasably engageable in a respective perforated margin with a snap fit, whereby to anchor the two ends of the strip to the belts and form a loop of film.
Dependencies are inferred from the claim text.