Hold-down clamp assembly for upper swingable inker of perfecting

Details Hold-down clamp assembly for upper swingable inker of perfecting Hold-down clamp assembly for upper swingable inker of perfecting

1977-12-07

1979-05-08

Fisher, J. Reed

Printing

Inkers

Roller

101247, B41L 2738, B41F 3136

Patent

active

041529855

ABSTRACT:
In an offset printing press the inker is normally clamped down against the printing section so as to transfer ink from the form roll of the inker to the plate cylinder of the printing section, but upon actuation of an air cylinder to extend the rod thereof, a clamping jaw on the outer end of the rod releases its grip on a latch lever and pushes against the frame of the printing section, thereby incrementally raising the inker and effecting slight separation of the form roll and plate cylinder. Such slight separation is not, however, sufficient to disengage drive mechanism associated with the form roll and plate cylinder so that the form roll may continue to rotate notwithstanding the slight separation. Substantial separation of the form roll and plate cylinder sufficient to disengage the drive mechanism may be effected by leaving the rod of the air cylinder extended so that the jaw on the rod is out of clamping engagement with the latching lever, whereupon raising of the inker by means other than the air cylinder causes the jaw to flip the swingable latch lever to a released position as the cylinder is raised with the inker.

REFERENCES:
patent: 1952028 (1934-03-01), Hehle et al.
patent: 2583639 (1952-01-01), Faeber et al.
patent: 2965023 (1960-12-01), Boule et al.
patent: 3286622 (1966-11-01), Mestre
patent: 3892178 (1975-07-01), Staamann
patent: 4036131 (1977-07-01), Elmore

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