Printing drum of rotary stencil printer having a predetermined a

Details Printing drum of rotary stencil printer having a predetermined a Printing drum of rotary stencil printer having a predetermined a

1994-11-01

1996-12-03

Burr, Edgar S.

Printing

Stenciling

Rotary machines

101116, 101119, 101127, B41L 1300, B41L 1304, B41L 1306

Patent

active

055796893

ABSTRACT:
A printing drum for a rotary stencil printer having a sidewall in the form of a flexible perforated sheet. In order to allow for a bulging out deformation of the sidewall by an internal press roller to be easier and more uniform over the entire width of the printing, the flexible cylindrical body of the printing drum has its opposite side edge portions seated around the outer circumferential surfaces of a pair of annular portions (10a, 10b). The drum is constructed to have an inner circumferential length greater than the circumferential length of the outer circumferential surface of the annular portions by a predetermined amount which allows for a predetermined bulging out deformation of the flexible cylindrical body.

REFERENCES:
patent: 3811378 (1974-05-01), Bohm
patent: 4026208 (1977-05-01), Horne, Jr. et al.
patent: 4911069 (1990-03-01), Hayama et al.
patent: 5090312 (1992-02-01), Ohinata
patent: 5255599 (1993-10-01), Kobayashi et al.

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