Printing – Printing members – Plate mountings
Patent
1993-11-08
1995-10-10
Burr, Edgar S.
Printing
Printing members
Plate mountings
1014151, B41F 2700
Patent
active
054561779
ABSTRACT:
In a master plate sheet clamping device for a rotary printer in which a moveable clamping plate is provided in the printing drum so as to be moveable between a clamping position for clamping a master plate sheet against the outer circumferential surface of the printing drum and an unclamping position for releasing the master plate sheet from the printing drum, to allow a reliable clamping and unclamping action to be carried out with a highly simple structure without requiring a large solenoid device or a mechanism for preventing the rotation of the printing drum, the printing drum carries a motor for moving the moveable clamping plate between the clamping position and the release position, and electric power is supplied to the motor via power collector members provided on the printing drum and selectively moveable power supply members provided on a fixed member of the printer.
REFERENCES:
patent: 1619086 (1927-03-01), Oldmixon
patent: 3567175 (1971-02-01), Torresen
patent: 3664260 (1972-05-01), Miller et al.
patent: 3768406 (1973-10-01), Gutshe et al.
patent: 5035175 (1991-07-01), Takita et al.
patent: 5167186 (1992-12-01), Honkawa et al.
patent: 5224875 (1993-07-01), Watanabe et al.
patent: 5253583 (1993-10-01), Yamamoto et al.
Burr Edgar S.
Nguyen Anthony H.
Riso Kagaku Corporation
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