Printing – Rolling contact machines – Rotary
Patent
1996-03-11
1998-04-07
Burr, Edgar S.
Printing
Rolling contact machines
Rotary
101375, B41F 1308
Patent
active
057352062
ABSTRACT:
A printing cylinder mandrel (1) arranged to support a sleeve mounted on it and carrying the print characters, the mandrel (1) being surface-deformable and able to assume at least two configurations, in one of which the sleeve can be mounted on it and in the other of which the sleeve is torsionally locked to it, the mandrel (1) comprising a core (2) the surface of which is covered with a deformable element (8), between this latter and said core there being provided a plurality of intercommunicating perimetral chambers (10) containing an incompressible fluid; the mandrel (1) internally houses presser means (20) arranged to pressurize said fluid in order to achieve the surface deformation of the mandrel (1) and the torsional coupling and locking of the sleeve, said presser means (20) being guidedly movable within the mandrel (1) and being activated by feeding into this latter a pressurized fluid.
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Burr Edgar S.
Colilla Daniel J.
Erminio Rossini, sPa
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