Photocopying – Projection printing and copying cameras – With film severing
Patent
1978-08-10
1979-10-23
Wintercorn, Richard A.
Photocopying
Projection printing and copying cameras
With film severing
331845, 355 32, 355 85, 355 88, 355132, G03B 2900
Patent
active
041719034
ABSTRACT:
An automatic registration system for four-color image stripping employs in one embodiment a first punching press having a grid pattern die on which a "MYLAR" sheet carrier with desired windows is laid, and, on this, single color images are laid at the respective windows; registration holes are then punched at selectable positions keying the single color images to the carrier by use of a correspondingly-grid-patterned transparent punch holder providing good visual access for selection of positions in the grid pattern at which to mount punches, and a ram which drives the punches against compression-spring bias. Following perforation of the registration holes in the Mylar sheet carrier, each single color image is removed and matched with the remaining single color images of the four-color set to which it belongs, with appropriate locator pins inserted in prepunched holes customarily supplied in each for the color separation stage keying them together. Next, in this embodiment the remaining single color images of the set are power-punched with a second punching press to perforate them all at positions corresponding to registration holes perforated in the one single color image of the set by the first punching press. Following this, the single color images may then be individually placed by relating each in turn through the registration holes to the Mylar sheet carrier windows, at which register pins are provided for the purpose; use of a single punching press for performing the entire operation is also disclosed.
REFERENCES:
patent: 1716989 (1929-06-01), Troland
patent: 1880087 (1932-09-01), Guerin
patent: 3000737 (1961-09-01), Barnhart
patent: 3067666 (1962-12-01), Coffman
patent: 3264106 (1966-08-01), Alldis
patent: 3436149 (1969-04-01), Wicker
patent: 3798782 (1974-03-01), Lindahl
McClellan, Sr. John F.
Wintercorn Richard A.
LandOfFree
Variable punch press system for four color work does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Variable punch press system for four color work, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable punch press system for four color work will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-408181