Drive system for rotary printing apparatus including improved me

Printing – Rolling contact machines – Rotary

Patent

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Details

101219, 271265, 271258, B41F 1324

Patent

active

048769592

ABSTRACT:
In a machine including rotary structure for printing indicia on a sheet fed to the machine, wherein the machine includes apparatus for driving the rotary printing structure, wherein the driving apparatus includes a drive gear having a home position, wherein driving apparatus includes a locking member movable into and out of locking engagement with the drive gear when the drive gear is in its home position, and wherein the machine includes trip structure for sening a sheet fed to the machine, an improvement comprising: an actuating member for moving the locking member into and out of locking engagement with the drive gear; apparatus for controlling the actuating member, the controlling apparatus including resilient structure for urging the actuating member to move the locking member into and out of locking engagement with the drive gear; and the trip structure including structure for normally latching the controlling apparatus for preventing the resilient structure from moving the actuating member to move the locking member out of locking engagement with the drive gear, and the latching structure unlatching the controlling means for permitting the resilient means to move the actuating member for moving the locking member out of locking engagement with the drive gear when the trip structure senses a sheet fed to the machine.

REFERENCES:
patent: 2766569 (1956-10-01), Strother et al.
patent: 2871781 (1959-02-01), Schremfp
patent: 2934009 (1962-04-01), Bach et al.
patent: 4002117 (1977-01-01), Ritzerfeld
patent: 4037535 (1977-07-01), Lehmann et al.

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