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US 4,452,598 AGranted
Apparatus for cutting printing plates
AssigneeAuto-Masters Ltd.
InventorCharles R. Marsh
Life of this patent
Estimating the term…
Abstract
Apparatus for cutting printing plates, comprises a cutting press with relatively movable platens one of which carries a form cutting tool for severing or partially severing from a processed sheet of flexible material a central image-bearing portion for use as a printing plate. Retractable registration and holding means engage registration targets on said sheet so as to locate the sheet in registry with the form cutting tool and to hold the sheet in position at least until it is held by the pressure of the cutting tool thereon.
Claims7
Apparatus for cutting printing plates, said apparatus comprising:
- a cutting press having relatively movable platens,
- one of said platens carrying a form cutting tool for at least partially severing from a processed sheet of flexible material, a central image-bearing portion for use as a printing plate, and
- retractable registration and holding means for engaging registration targets on said sheet so as to locate the sheet in registry with the form cutting tool and to hold the sheet in position at least until it is held by the pressure of the cutting tool thereon,
- and wherein the registration means comprises reciprocal plungers mounted on said one platen so as to pass through respective holes in the cutting tool for engagement with the registration targets on the processed sheet when the press is open.
1 more element
Dependencies are inferred from the claim text.