Vacuum positioning system for use in composing a plate for offset printing
AssigneeFavorite Check Printers, Inc.
InventorsRoy H. Pearrow, Jack Schoenberg
Life of this patent
Estimating the term…
Abstract
A positioning system for quickly aligning and securing material to be composed for preparation of a plate for offset printing, such apparatus including a light source under a transparent support having alignment means on which background material, a template with nonlinear slots for aligning multilined overlay information, and overlay material for insertion into such nonlinear slots are positioned, all such material being held in place by vacuum.
Claims6
Apparatus for use in quickly and repetitively preparing a plate requiring critical accuracy for offset printing comprising a source of light, means for supporting background information sheet material in a path of illumination by said light source, means for accurately and quickly positioning said background sheet material on said supporting means, said positioning means including alignment pins as part of said supporting means to match aligned holes in said background information sheet material, means for accurately and quickly locating on such background information sheet material additional overlay information material to appear on such printing plate said locating means comprising a transparent template with accurately positioned openings for locating and positioning overlay informational material, said template having alignment holes to match said alignment pins, and means for holding said background information sheet material and such additional overlay information material in pressure engagement with said supporting means.
Apparatus for use in quickly and repetitively preparing a plate requiring critical accuracy for offset printing comprising a source of light, means for supporting background information sheet material in a path of illumination by said light source, means for accurately and quickly positioning said background sheet material on said supporting means, means for accurately and quickly locating on such background information sheet material additional overlay information material to appear on such printing plate and means for holding said background information sheet material and such additional overlay information material in pressure engagement with said supporting means, said holding means comprising a bottom, sides, and top surface;
- said background information sheet supported on said top or supporting surface, a vacuum source for said housing, a plurality of openings on said supporting surface under the area of said background information material and corresponding openings in said background information material sheet in alignment with the location of said additional information material, whereby after positioning of said material on said supporting surface application of vacuum thereto will hold such informational materials in pressure engagement thereon.
An apparatus for quickly and repetitively preparing a plate requiring critical accuracy for offset printing, comprising a source of light, supporting means for background informational material and overlay information material, means including a transparent template having accurately positioned openings aligned over said background information material for accurately and quickly positioning said overlay information material, vacuum means for exposing the region below said supporting means to reduced pressure, a plurality of openings through said supporting means for exposing said background material to said reduced pressure, and selected openings through said background material coinciding with openings through said supporting means in alignment with the position of said overlay information material, whereby, said aligned overlay information material is exposed to such vacuum through said openings in said background information material to be held in position thereon.
Dependencies are inferred from the claim text.