Form roller compensator

Details Form roller compensator Form roller compensator

1977-12-02

1979-03-20

Fisher, J. Reed

Printing

Inkers

Roller

101209, B41L 2734, B41F 3132

Patent

active

041448111

ABSTRACT:
A form roller compensator is provided for use in mounting a printing form roller in a publication printing apparatus in proper orientation relative to a printing cylinder. The form rollers in a printing machine control the amount of ink transferred to the printing surfaces of a printing cylinder for printing alphabetic and numerical characters and pictorial illustrations. The invention allows the amount of ink transferred by printing form rollers to be varied to compensate for the inordinately heavy or light supply of ink which results from pressure variations of the form rollers against impression cylinders. These pressure variations are caused by thermal expansion or contraction of the various rotating cylinders involved.

REFERENCES:
patent: 2163374 (1939-06-01), Crafts
patent: 2853005 (1958-09-01), Worthington
patent: 2860579 (1958-11-01), Granger
patent: 3167010 (1965-01-01), Worthington et al.
patent: 3638568 (1972-02-01), Granger
patent: 3986454 (1976-10-01), Granger

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