Printing machine cylinder underlay holding arrangement

Details Printing machine cylinder underlay holding arrangement Printing machine cylinder underlay holding arrangement

1987-03-27

1989-08-08

Burr, Edgar S.

Printing

Flexible-sheet-securing devices

1013891, B41F 2702

Patent

active

048542377

ABSTRACT:
To adhere an underlay in the clamping groove of a printing machine cylinder, for example a blanket cylinder of a rotary sheet offset printing machine, magnetic foil strips (7, 8, 23, 24, 33) are provided, clamping the end portion (6, 22, 32) of the underlay (4, 19, 30) either between two foil strips (FIGS. 1, 2) or against a magnetic portion within the groove, typically the inner side wall surface (9, 20, 34) defining the groove. The other end portion of the underlay can be left free, and will be clamped in position by stretching the rubber blanket or printing plate, respectively, over the cylinder.

REFERENCES:
patent: 2580099 (1951-12-01), Jaeger
patent: 3166771 (1965-01-01), Kline et al.
patent: 3730092 (1973-05-01), Pickard et al.
patent: 3745626 (1973-07-01), Bray
patent: 3827020 (1974-07-01), Okamoto
patent: 4040351 (1977-08-01), Faust
patent: 4402265 (1983-09-01), Pickard
patent: 4625928 (1986-12-01), Peekna
Palmer, Allen J., Xerox Disclosure Journal, Vol. 3, #2, Mar./Apr. 1978, "Magnetic Paper-Gripping Concept", US-CL 270/18DP.

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