Cutting – Processes – Plural cutting steps
Patent
1990-05-04
1991-12-24
Crane, Daniel C.
Cutting
Processes
Plural cutting steps
83 39, 83371, 83367, 83365, 83364, 83408, B26D 538, B26D 520
Patent
active
050741780
ABSTRACT:
Disclosed are a method and an apparatus for cutting drawings from a web that has emerged from a computer controlled graphics plotter. The apparatus includes a support for holding the spool of paper from the plotter and a drive means for pulling the paper through the apparatus. Photocells serve as sensors for detecting the presence of the four borders of each drawing. In response to signals generated by the photocells, the transverse borders are cut by a rotary scissor during pauses in the advance of the web. The side or "longitudinal" borders of each drawing are cut by a pair of knives that pierce the paper and cut the borders as the web is being advanced through the apparatus.
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Brochure "Plots Cut Quickly and Accurately" Plot Cutter From Dahle, Dahle U.S.A., Oxford, CT, pp. PS1-PS12.
Carter Michael L.
Shetley Paddy B.
Williams, III Robert C.
CAD Futures Corporation
Crane Daniel C.
Faust Richard S.
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