Apparatus for impression throw-on and throw-off and, for changin

Details Apparatus for impression throw-on and throw-off and, for changin Apparatus for impression throw-on and throw-off and, for changin

1984-10-11

1985-07-09

Eickholt, E. H.

Printing

Rolling contact machines

Rotary

101153, B41F 1324

Patent

active

045274746

ABSTRACT:
In a rotary gravure press in which the journal bearings of the impression cylinder are each connected to a piston rod of the double acting piston-cylinder units serving to raise and lower the impression cylinder, the piston rods extend out of the cylinders and are rotatably but axially undisplaceably mounted in the journal bearings. On the sides opposite to the piston rods, spindles which are screwed into the pistons are provided with unthreaded portions on which worm wheels are secured against rotation but to allow limited axial displacement through a distance corresponding to the stroke between impression throw-on and throw-off.

REFERENCES:
patent: 1225667 (1917-05-01), McLain
patent: 1337186 (1920-04-01), Allen
patent: 1573005 (1926-02-01), Kelly
patent: 2009687 (1935-07-01), Cottrell
patent: 2601220 (1952-06-01), Richardson et al.
patent: 3131631 (1964-05-01), Haskin, Jr.
patent: 4063504 (1977-12-01), Ottenhues et al.
patent: 4119031 (1978-10-01), Ottenhues
patent: 4132166 (1979-02-01), Bugnone
patent: 4239001 (1980-12-01), Kataoka
patent: 4240346 (1980-12-01), Landis et al.

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