Printing – Rolling contact machines – Rotary
Patent
1992-03-23
1993-07-20
Burr, Edgar S.
Printing
Rolling contact machines
Rotary
101224, B41F 1354
Patent
active
052283887
ABSTRACT:
An improved score or perforator bar device is adapted for use with certain printing presses having a blanket cylinder revolving upon an axle shaft and with an elongate slot for attachment of the blanket. The adapter device includes a bar of a length substantially the same as the cylinder with a working side having a longitudinal slot for mounting a knife blade. The knife blade has either a scoring edge or a perforation edge, depending upon the desired effect. The bar has an attachment side for connection to the blanket cylinder and has legs extending generally perpendicularly. The legs have recessed ends for bearing against the cylinder shaft so that the force of the blade is transferred to the axle shaft and not to the cylinder shell. Hooks selectively extend about the cylinder shaft. A screw arrangement retains the bar in a cylinder slot. A numbering device in lieu of the knife blade can be retained within the longitudinal slot.
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Burr Edgar S.
Day Wm. Bruce
Hilten John S.
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