B - Operations – Transporting – 41 – F
Patent
B - Operations, Transporting
41
F
B41F 31/14 (2006.01)
Patent
CA 2105865
An apparatus for supplying ink to a printing machine comprising an ink fountain roller and an ink distributing roller supported by a frame so as to be parallel to each other, and a plurality of vibrating rollers divided axially of the rollers and disposed therebetween as arranged at a spacing axially thereof, each of the vibrating rollers being individually positionable alternatively at one of two positions between the rollers so as to be changeable in the state of contact with thereof with the ink fountain roller and the ink distributing roller. A fixed shaft fixed to the frame extends through the interiors of the plurality of tubular vibrating rollers with a predetermined clearance therebetween in the radial direction. A permanent magnet is provided at an inner peripheral portion of each vibrating roller. A magnetic device including an electromagnet is provided on an outer peripheral portion of the fixed shaft inside the vibrating roller. Each vibrating roller is individually shiftable to one of two positions in the state where the permanent magnet of the vibrating roller and the magnetic device of the fixed shaft are opposed to each other with a predetermined clearance therebetween in the radial direction by a change-over of the state of current supply to the electromagnet of each magnetic device.
Fetherstonhaugh & Co.
I. Mar Planning Inc.
LandOfFree
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