Lithographic dual light source apparatus

Details Lithographic dual light source apparatus Lithographic dual light source apparatus

1977-05-23

1980-01-08

Wintercorn, Richard A.

Photocopying

Contact printing

With scanning

355113, 362 11, G03B 2710

Patent

active

041825691

ABSTRACT:
An apparatus is disclosed for alternatively positioning a quartz or pinpoint light above a vacuum printing frame in a lithographic process. Either a quartz or a pinpoint light is required to produce fine line contacts, duplicates and reverses which are subsequently arranged in the desired orientation and transferred onto a printing plate for offset printing. The apparatus is located over a vacuum printing frame, or similar device, and has both the quartz light and pinpoint light attached to a movable housing. The housing is movable along two rails so as to accurately position either of the lights in its proper position over the printing frame. Movement of the housing is initiated by the operator and ceases when the housing contacts a limit switch.

REFERENCES:
patent: 2153186 (1939-04-01), Henderson
patent: 2919635 (1960-01-01), Levine et al.
patent: 2988979 (1961-06-01), Sigler
patent: 3007390 (1961-11-01), Forester et al.
patent: 3723001 (1973-03-01), Zeunen et al.

Affiliated with

Also associated with

Rating

Lithographic dual light source apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Lithographic dual light source apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lithographic dual light source apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1940519