Printing – Printing members – Plate mountings
Patent
1977-06-02
1979-03-20
Pieprz, William
Printing
Printing members
Plate mountings
101368, 101375, 29132, 29446, B41F 2700
Patent
active
041448120
ABSTRACT:
For fitting a printing sleeve in a printing roll the outer surface of the roll core and preferably the inner surface of the sleeve are made with one end of a lesser diameter than the other; the sleeve is slightly undersize diametrically. Remote from the ends of the core are orifices whereby gas under pressure may be blown radially outwardly from the core. The difference in diameter allows the sleeve to be passed freely along the core until it jams up against an increased diameter portion of the outer surface of the roll, at which time it covers the orifices. Gas is then blown from the orifices to expand the sleeve which can then be moved into its working position on the core. A sleeve specially suitable for this treatment is made by laying-up a seamless GRP layer on a former which is undersize for the designed core and either curing a rubber layer in situ onto the layer, or adhesively securing a flexible plate to a true cylindrical outer surface of the GRP layer.
A transition between the regions of different diameter of the outer surface of the roll core may be made by a frusto-conical taper (preferably of the order of 5 parts in 10,000 to 20,000) or by at least one step (preferably slightly greater than the designed undersize of the sleeve, say 0.008 and 0.006 inches respectively).
REFERENCES:
patent: 1329762 (1920-02-01), Guy
patent: 2840399 (1958-06-01), Harless et al.
patent: 2926940 (1960-03-01), Maass
patent: 2949852 (1960-08-01), Schaefer
patent: 2992479 (1961-07-01), Musser et al.
patent: 3146709 (1964-09-01), Bass et al.
patent: 3402449 (1968-09-01), Schroder
patent: 3639959 (1972-02-01), Bagley et al.
patent: 3721188 (1973-03-01), Jacobsen et al.
patent: 3859701 (1975-01-01), Huber
patent: 4030415 (1977-06-01), Fellows
Behr Omri M.
Pieprz William
Strachan & Henshaw Limited
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