Printing – Selective or progressive – Numbering
Patent
1981-12-17
1984-03-06
Burr, Edgar S.
Printing
Selective or progressive
Numbering
101 72, B41L 4500
Patent
active
044347154
ABSTRACT:
A printing apparatus including separate serial printing heads mounted on a rotary chase whereby the heads can be selectively positioned for printing on material as the material is transported through the apparatus. The chase is mounted on a support located in an easily accessible position in the apparatus whereby the rotation of the chase to change the head or heads to be used in a printing operation can be easily accomplished. The chase is also removably positioned on the support so that an entire chase can be readily separated from the apparatus, and a different chase with different printing heads substituted in the apparatus. The chase is equipped with guides which cooperate with guides on the apparatus frame to insure automatic alignment of the chase as it is located in operating position, and the drive shafts carrying the printing heads are at the same time automatically engaged with drive means associated with the apparatus. Locking mechanisms are provided to secure the chase in position relative to the frame and the chase is also equipped with pins engageable with the apparatus frame and having the capability of adjusting printing head pressure on the material being printed. The chase is also equipped with means for automatically shifting the heads between "On Impression" and "Off Impression" positions in the course of a printing run.
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American Printer and Lithographer, p. 92 (Jun. 1981).
42A. B. Dick Service Bulletin No. 0-59-1966 (May 25, 1966).
Operating Instructions for A. B. Dick Models 350/360, Offset Equipment (undated).
A. B. Dick Company
Burr Edgar S.
Weresh John A.
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