Washing apparatus for printing press cylinders having a spring-b

Details Washing apparatus for printing press cylinders having a spring-b Washing apparatus for printing press cylinders having a spring-b

1994-02-22

1995-01-03

Burr, Edgar S.

Printing

Antismut device

Cleaners

101425, 192 8C, 1525651, B41F 3500

Patent

active

053775910

ABSTRACT:
A washing apparatus for cleaning the surface of cylinders in a printing machine includes a fresh-cloth roller, a washing roller and a dirty-cloth roller. A washing cloth is transported from the fresh-cloth roller via the washing roller to the dirty-cloth roller. A spring-band freewheel in the form of a helical coil spring is wound non-positively on the shaft of the fresh-cloth roller. The spring-band freewheel free-wheels during the rotation of the shaft in the direction of tension applied to the washing cloth and blocks the shaft from rotating in the opposite direction. The necessary cloth tension is guaranteed, at the same time, by means of the resilient effect of the spring-band freewheel.

REFERENCES:
patent: 3452840 (1969-07-01), Cain
patent: 3837441 (1974-09-01), Uno et al.
patent: 4135448 (1979-01-01), Moestue
patent: 4986182 (1991-01-01), Sawaguchi et al.
patent: 5009161 (1991-04-01), Wirz
patent: 5287949 (1994-02-01), Kitamura
patent: 5328007 (1994-07-01), Yokozuka et al.

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