Photocopying – Contact printing – Light boxes
Patent
1987-11-16
1992-01-14
Braun, Fred L.
Photocopying
Contact printing
Light boxes
355327, G03G 1501, G03G 2100
Patent
active
050815075
ABSTRACT:
An apparatus in which a sheet is advanced into registration with different color information developed on master sheets secured releasably on different drums. Each master sheet is secured to a gripper bar having outwardly extending pins. The pins in the master sheet gripper bars mount in holes in the drum and extend outwardly therefrom. A chain driven gripper bar advances the sheet into registration with successive master sheets. The sheet gripper bar is mounted pivotably and slidably on the chain. The sheet gripper bar has notches in the leading edge thereof to mesh with the pins extending from the master sheet gripper bar. This detachably couples the sheet and the master sheet to move in unison with one another. In this way, the sheet is placed in registration with the different color information developed on each master sheet. After the color information is transferred from the master sheet to the sheet, the sheet gripper is decoupled from the pins and advances with the chain to place the sheet in registration with the next successive master sheet.
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Ammenheuser Herbert H.
Fantuzzo Joseph
Monkelbaan Edwin R.
Robson Thomas
Beck J. E.
Braun Fred L.
Fleischer H.
Xerox Corporation
Zibelli R.
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