Method and apparatus for preparing film for exposure with a film font
AssigneeAmerican Photo-Graphics Corporation
InventorRonald D. Edhlund
Life of this patent
Estimating the term…
Abstract
A piece of film is prepared for photographic exposure with a film font so as to produce a duplicate font. The piece of film is initially cut to a proper size and placed between a first supporting platen and a cover plate which is adapted to fit snugly against the film. Hole punches fixed to the bottom of an overlying second platen are moved down and through the film. The film and the original film font are then impaled on a register pin which holds them rigidly together for photographic exposure.
Claims2
Apparatus for perforating pieces of film in preparation for exposure with a film font, which comprises:
- a base;
- a first platen mounted on said base for supporting said film, said first platen defining a plurality of apertures;
- a cover plate defining a plurality of apertures and adjustably mounted above said first platen;
- spring means extending between said base and said cover plate through said first platen;
- a second platen adjustably mounted above said cover plate;
- spring means extending between said cover plate and said second platen;
- a plurality of punch means fixedly mounted to the bottom of said second platen;
- a pair of walls attached to opposite sides of said first platen;
- shaft means rotatably fixed between said walls above said second platen;
- at least one eccentric mounted on said shaft means and positioned to bear against said second platen;
- and means for rotating said shaft to force said second platen toward said first platen and drive said punch means through the apertures of said cover plate, film and the apertures of said first platen.
An apparatus for perforating web material, which comprises:
- a base;
- a first platen mounted on said base having at least one aperture for supporting said web material;
- two walls attached to opposite sides of said first platen;
- a cover plate having at least one aperture and adjustably mounted above said first platen;
- spring means extending between said base and said cover plate through said first platen;
- a second platen adjustably mounted above said cover plate;
- spring means extending between said cover plate and said second platen;
- at least one punch means fixedly mounted to the bottom of said second platen;
- shaft means rotatably fixed between said walls above said second platen;
- at least one eccentric mounted on said shaft means and positioned to bear against said second platen;
- and means for rotating said shaft to force said second platen toward said first platen and drive said punch means through the aperture of said cover plate, web material and the aperture of said first platen.
Dependencies are inferred from the claim text.