Drive for rotary-roller offset printing machines

Details Drive for rotary-roller offset printing machines Drive for rotary-roller offset printing machines

1981-12-23

1983-07-26

Fisher, J. Reed

Printing

Multicolor

Rotary machines

101178, 101220, B41F 518, B41F 1300

Patent

active

043948359

ABSTRACT:
The disclosure concerns a nine-roll or ten-roll printing mechanism, in which the directions of rotation of the rolls have to be reversed individually according to a printing program. The driving connection to the plate rolls is effected through two oppositely rotating impression roll gears which are rotatably mounted on the axle of the impression roll. The impression roll gears can be coupled to the axle of the impression roll by means of remotely operable couplings. A sliding gear is associated with each plate roll. The sliding gear selectively engages one or the other impression roll gear. An indexing wheel corresponds to each sliding gear and is mounted slidably on the plate roll axle. The width of the sliding gears is selected so that an idling setting is excluded. Each plate roll is connected with its associated offset roll by means of a rotation-secure driving connection.

REFERENCES:
patent: 3329086 (1967-07-01), Pullen
patent: 3505953 (1970-04-01), Germann

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