Cutting – Other than completely through work thickness or through work... – Grooving
Patent
1994-02-04
1997-02-18
Rada, Rinaldi I.
Cutting
Other than completely through work thickness or through work...
Grooving
834687, 83563, 83578, 83581, 83588, 83614, 83620, B26D 306, B26D 111
Patent
active
056032536
ABSTRACT:
A method and apparatus are provided for cutting a decorative groove in a matboard. The matboard is positioned adjacent a guide. A carrier is adapted to be moved along the guide with two blades oriented in separate planes which intersect each other and which lie at an oblique angle relative to the matboard. One of the blades is inserted into the matboard at a selected first depth. The carrier is moved along the guide for a predetermined length of travel to make a first cut in the matboard defining a first side of the groove. The blade is then retracted. Then the other blade is next inserted into the matboard to a selected depth at least intersecting the first cut. The carrier is then moved back to the initial location to make a second cut in the matboard defining a second side of the groove. In a preferred embodiment, the tips of the blades are offset from each other relative to the length of the groove.
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"The Supreme Model 600 by Logan Instruction and Operation Manual," Logan Graphic Products, Inc. Form 1101. (Date unknown).
"Time Is Money" Advertising Brochure (two-sided sheet) for the Freegrover with accompanying photographs, A, B, and C. (Date unknown).
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Dexter Clark F.
Rada Rinaldi I.
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