Device for controlling rotary motion

Details Device for controlling rotary motion Device for controlling rotary motion

1978-06-02

1980-09-16

Mautz, George F.

Advancing material of indeterminate length

By orbitally traveling material-engaging surface

Comprising rotary pinch pair

226188, 226190, 242 55, 242 582, 242 64, 318 5, 318 45, 318 49, 318102, B65H 1720, B65H 1910, B65H 1922

Patent

active

042225124

ABSTRACT:
A rotary drive device for effecting, for example, displacement of a printing roller towards or away from a pressure roller in a printing press, is formed by a direct current or alternating current high speed motor coupled mechanically to a permanent magnet low speed motor. Fast movement is effected with the permanent magnet motor being pulled by the high speed motor, while slow movement with rapid braking is effected, at high torque, with the permanent magnet motor excited and pulling the other motor, to bring the printing roller gently into contact with the pressure roller.

REFERENCES:
patent: 1993579 (1935-03-01), Wright
patent: 2674706 (1954-04-01), Knosp et al.
patent: 3194508 (1965-07-01), Netze
patent: 3427519 (1969-02-01), Louis
patent: 3940677 (1976-02-01), Morino et al.
patent: 3944902 (1976-03-01), Lacorre et al.

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