Geometrical instruments – Miscellaneous – Light direction
Patent
1979-06-20
1983-01-11
Shepperd, John W.
Geometrical instruments
Miscellaneous
Light direction
33 18R, 83 71, 83861, B26D 308, B43L 1300
Patent
active
043675883
ABSTRACT:
A system for cutting curvilinear patterns in strippable films with a high speed computer controlled flat bed plotter having a diamond point cutter positioned in the plotting head. The scribe pressure is set between 200 and 300 grams with the plotter set to drive the plotting head at a speed between 20 and 30 inches per second and with the head acceleration set between 0.4 G's and 0.7 G's.
REFERENCES:
patent: 3339279 (1967-09-01), Sovar et al.
Salys Casimer K.
Shepperd John W.
Singer Donald J.
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