Apparatus for applying and withdrawing an impression cylinder ac

Details Apparatus for applying and withdrawing an impression cylinder ac Apparatus for applying and withdrawing an impression cylinder ac

1977-03-04

1977-12-20

Fisher, J. Reed

Printing

Intaglio

Rotary

101247, B41F 900

Patent

active

040635040

ABSTRACT:
In an intaglio printing press where the impression cylinder is provided with two journals for mounting it in the frame of the press, the journals being operatively connected to respective screw-threaded spindles which are adjustable in unison or independently, apparatus for applying and withdrawing the impression cylinder to and from the plate cylinder comprises first and second rotatable nuts mounted on each spindle, the two nuts on each spindle being coupled for co-rotation. A hand wheel is operatively connected to said first nut to apply same to a respective abutment surface that is fixed with respect to the frame. A piston-cylinder unit is operatively connected to each said second nut to lift and lower same, the psiton-cylinder unit being supplied with pressure medium through independent fine control valves.

REFERENCES:
patent: 2207785 (1940-07-01), Crafts
patent: 2607292 (1952-08-01), Harless et al.
patent: 3131631 (1964-05-01), Haskin, Jr.
patent: 3272122 (1966-09-01), Behringer
patent: 3601046 (1971-08-01), Motter

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