Transfer drum for printing presses with devices for gripping the

Details Transfer drum for printing presses with devices for gripping the Transfer drum for printing presses with devices for gripping the

1976-06-25

1980-05-13

Piepaz, William

Printing

Work supporting members

Grippers

101232, 271 82, 271277, B41F 1344, B41F 2104

Patent

active

042022681

ABSTRACT:
Transfer drum for printing presses through which a sheet to be imprinted passes, includes a shaft, a first and second row of sheet-supporting segments disposed in comb-like fashion along the periphery of the drum, devices for gripping, respectively, the trailing and leading edges of a sheet, one of the rows of segments being rotatably mounted on the shaft together with one of the gripping devices, and the other of the rows of segments being fixedly mounted on the shaft together with other of the gripping devices, the rows of segments being rotatable relative to one another, each of the gripping devices extending rigidly over the entire width of the drum and being secured to the respective row of segments in channels formed in the drum.

REFERENCES:
patent: 2056922 (1936-10-01), Gegenheimer
patent: 2599776 (1952-06-01), Peyrebrune
patent: 2757610 (1956-08-01), Gegenheimer et al.
patent: 3096088 (1963-07-01), Young
patent: 3125022 (1964-03-01), Reinhartz et al.
patent: 3151552 (1964-10-01), Peyrebrune
patent: 3417696 (1968-12-01), Kock et al.
patent: 3430946 (1969-03-01), Siebke
patent: 3537391 (1970-11-01), Mowry et al.
patent: 3654861 (1972-04-01), Rudolph et al.
patent: 3796154 (1974-03-01), Weisgerber
patent: 3829084 (1974-08-01), Jurny
patent: 3865362 (1975-02-01), Luffy et al.
patent: 3937142 (1976-02-01), Cerny et al.

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