Printing – Flexible-sheet-securing devices
Patent
1978-02-27
1979-06-05
Fisher, J. Reed
Printing
Flexible-sheet-securing devices
B41F 2706, B41F 722
Patent
active
041570677
ABSTRACT:
A form cylinder for rotary intaglio printing presses comprises first and second half cylindrical parts which are joined together to form a cylinder having diametrically opposite recesses and with each part having a facing side facing the respective other cylinder part with a clamping device recess defined therein. At least one flexible printing plate extends over each cylindrical part and is connected at each end to a profile piece in the form of an angle member which is displaceably positioned in each respective recess. A clamping mechanism in the form of a toggle is provided in the recess of the cylindrical part and it includes a drive member for actuating the toggle to displace the profiled member to effect tensioning of each printing plate both in tangential and radial directions.
REFERENCES:
patent: 1049195 (1912-12-01), Banzett
patent: 1275877 (1918-08-01), Drange
patent: 1795700 (1931-03-01), Baldwin
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patent: 2474127 (1949-06-01), Tollison et al.
patent: 2775198 (1956-12-01), Johnson et al.
patent: 2953091 (1960-09-01), Luehrs
patent: 2987994 (1961-06-01), Allison
patent: 3230883 (1966-01-01), Achiner et al.
patent: 3490369 (1970-01-01), Huck
Firma Max Datwyler & Co.
Fisher J. Reed
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