Torque limiting used screen take-up assembly and drive

Printing – Stenciling – Stencils

Patent

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Details

101116, 101122, 242 681, 242 685, 242 755, B41F 1512, B41F 1538

Patent

active

040856712

ABSTRACT:
For the purposes of removing a used stencil or an ink screen from the cylinder(s) of a duplicator, a rotatable core alongside the duplicator cylinder is driveable by a drive transmission from the main duplicator drive, by way of a freewheel clutch such that the core is driven only when the duplicator cylinder is rotated in the reverse direction as compared with the normal direction of rotation during printing, and also by way of a friction-slip connection arranged such that with no slip the peripheral speed of the core is higher than that of the duplicator cylinder along which it is mounted.

REFERENCES:
patent: 2009972 (1935-07-01), Marcher et al.
patent: 3348786 (1967-10-01), Miller et al.
patent: 3727856 (1973-04-01), Kitch
patent: 3940081 (1976-02-01), Kubicki, Sr.
patent: 3943850 (1976-03-01), Maynard

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