Printing – Rolling contact machines – Rotary
Patent
1985-08-02
1986-06-24
Fisher, J. Reed
Printing
Rolling contact machines
Rotary
101408, B41F 2108
Patent
active
045961840
ABSTRACT:
To prevent the formation of ghosts as sheets are pulled off a delivery drum (1) by a transport chain arrangement, the gripper mechanism (3-6) on the chain transport is movably located thereon to impart forward movement to the gripped sheet in addition to the movement of the chain and so that tension on the sheet is continuously maintained. The mechanism for imparting said additional movement includes a holding bracket (12) secured to the chain (2) on which a carrier plate (13) is secured, the carrier plate being movable with respect to the holding bracket and retaining the gripper mechanism. The carrier plate can be moved by an angled cam follower lever (15) secured to the holding bracket and pushing the carrier plate, and hence the gripper mechanism, forwardly in the direction of movement of the chain when the cam follower lever is engaged by a suitably positioned cam.
REFERENCES:
patent: 2940387 (1960-06-01), Pritchard
patent: 3334897 (1967-08-01), Sharkey
patent: 4222326 (1980-09-01), Mathes
Fisher J. Reed
M.A.N.--Roland Druckmaschinen Aktiengesellschaft
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