Phase adjusting apparatus for sheet-fed printing press

Details Phase adjusting apparatus for sheet-fed printing press Phase adjusting apparatus for sheet-fed printing press

1987-11-30

1988-12-20

Crowder, Clifford D.

Printing

Rolling contact machines

Rotary

474900, B41F 706

Patent

active

047918691

ABSTRACT:
In a phase adjusting apparatus for a sheet-fed printing press for adjusting a relative phase in a rotational direction between a paper sheet feeder and a printing apparatus which are coupled through a chain, a sprocket is in internal contact with a tension side of the chain and is axially supported by a slide base. The slide base is supported to be movable in a direction substantially perpendicular to an extension direction of the tension side of the chain. A slide base driving apparatus is arranged on a press frame. A tension sprocket which is biased in a tension direction of the chain by compression coil springs so as to be in contact with a slack side of the chain.

REFERENCES:
patent: 1819743 (1931-08-01), Duncan
patent: 3166947 (1965-01-01), Hendershot
patent: 4321869 (1982-03-01), Jeschke et al.
Chironis; Mechanisms Linkages and Mechanical Controls p. 102, "Adjustable Stroke Mechanisms", 1965, Scientific Library.

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