Printing – Special article machines – Rotating object
Patent
1975-07-17
1976-12-14
Coven, Edward M.
Printing
Special article machines
Rotating object
101247, B41F 1708
Patent
active
039968510
ABSTRACT:
In a printing system, containers are fed to pockets associated with a plurality of mandrels located at angularly spaced positions around a mandrel drum. Each of the mandrels is supported by a mechanism including a cam follower and a load means for urging the cam follower for each mandrel outwardly toward a mandrel cam. As the drum rotates, the mandrel cam acting on the mandrel cam follower moves the mandrel radially outwardly to a position of contact with a printing blanket and a lacquer applying cylinder. In order to prevent printing or lacquering when malfunctions in container feeding occur, a locking mechanism is associated with each of the pockets of the mandrel drum. The locking mechanism is responsive to the absence of a container in a pocket as well as the improper seating of a container on a mandrel to prevent the cam follower carried by the mandrel support mechanism from following the mandrel cam when one of these conditions exists. This in turn prevents the can follower and the mandrel from moving outwardy to a position of contact with the printing blanket and the lacquer applying cylinder.
REFERENCES:
patent: 3279360 (1960-10-01), Smith et al.
patent: 3356019 (1967-12-01), Zurick
patent: 3613571 (1971-10-01), Russell et al.
patent: 3616778 (1971-11-01), Sirvet et al.
patent: 3851579 (1974-12-01), Zurick
patent: 3889630 (1975-06-01), Szpitalak
Coven Edward M.
Crown Cork & Seal Company, Inc.
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