Manufacturing container or tube from paper; or other manufacturi – Safety
Patent
1983-10-04
1985-08-27
Coan, James F.
Manufacturing container or tube from paper; or other manufacturi
Safety
83DIG1, 834252, 83545, 83563, 493369, B26D 308
Patent
active
045375828
ABSTRACT:
A slitting apparatus employing safety features and particularly suited for use in slitting strip paper as employed in a graphics drum plotter. A housing is provided which is adapted to be releasably attached to the frame of the plotter adjacent the takeup roller for the strip paper. The housing has a box-shaped top with a hinged opening rear portion. A plurality of knife blades are mounted in housings disposed in a slot in the wall of the box portion for adjustability as to their position along the width of the paper. The knife blades are spring-biased to a retracted position and adjustable actuators in the hinged portion extend the blades selectably only when the box is closed. A releasable latch is provided for holding the box in a closed position. A releasable latching assembly connects the housing to the frame of the plotter. The latching assembly is activated by opening the box which, in turn, retracts the knife blades. As thus configured, when the apparatus is removed from the plotter, the blades are automatically retracted to prevent operator contact and injury.
REFERENCES:
patent: 2316249 (1943-04-01), Johnson
patent: 3961551 (1976-06-01), Doyel
patent: 4094217 (1978-06-01), Exline
Coan James F.
Etlinger Louis
Porter, Jr. William F.
Sanders Associates Inc.
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