Rotary printing screen having heat-shrunk support members

Details Rotary printing screen having heat-shrunk support members Rotary printing screen having heat-shrunk support members

1975-05-13

1977-05-31

Coven, Edward M.

Printing

Stenciling

Rotary machines

1011271, 1011281, B05C 1706

Patent

active

040262081

ABSTRACT:
A rotary printing screen, for mounting in a rotary screen printing machine, which has a support member at each end of its screen cylinder. The support member uniformly supports each endring against the longitudinal tension applied to the screen cylinder by the tensioning device so that the endrings remain in parallel. The support member, made from a heat-shrinkable plastic, such as polyethylene terephthalate, is selectively a heat-shrunk plastic sleeve or a heat-shrunk device endwise extension of the screen cylinder. Each embodiment extends over at least a portion of the shoulder of the endring to form a lip which has progressively greater thickness and decreasing circumference, terminating in a circular bead. As a sleeve, the support member fits over each terminal portion of the screen cylinder and covers its adhesive joint with the underlying cylindrical surface of the endring.

REFERENCES:
patent: 2292602 (1942-08-01), Biondi
patent: 2989785 (1961-06-01), Stahl
patent: 3481805 (1969-12-01), Holmes et al.
patent: 3556004 (1971-01-01), Mitter
patent: 3598049 (1971-08-01), Dias
patent: 3599565 (1971-08-01), Feirer
patent: 3608482 (1971-09-01), Bubley
patent: 3710531 (1973-01-01), Bielawski
patent: 3792562 (1974-02-01), Gilliam
"Inks, Equipment, and Screen-making Supplies", Colonial Catalog, 1970, p. 52.

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