Cutting – Other than completely through work thickness or through work... – Scoring
Patent
1988-04-14
1989-11-21
Watts, Douglas D.
Cutting
Other than completely through work thickness or through work...
Scoring
83875, 83564, 83582, 83614, 33 321, 225 965, B26D 308
Patent
active
048814393
ABSTRACT:
Cutter apparatus is provided for sheet material, such as glass, plastic (e.g., plexiglass) or matte boards, particularly designed for use in picture framing, although also usable wherever such sheets need simple and reliable cutting apparatus. The cutter has means for holding a sheet of material in a position to be cut, a guide, and a cutter assembly or slide movable along said guide. The cutter assembly includes a movable cutter carrier resiliently urged toward said material. The cutter carrier holds two separate cutting elements, either one of which can be presented to the sheet material by pivoting the carrier. A lever moves the cutter carrier away from said material. A latch is provided for retaining the lever in a position with said cutter carrier retracted from said material, the latch being normally inoperative. Movement of the slide to the end of a cutting stroke places the latch in an operative condition to hold the lever, and thereby keeps the cutter carrier away from the sheet material to permit freely moving it and the cutter. The lever is coupled to the carrier by a linkage which both limits the movement of the carrier toward the sheet material, and by over-center action may lock the cutter element in fixed relation to the material.
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Biedermann Robert E.
Countryman Albert J.
Esselte Pendaflex Corporation
Smith Scott A.
Watts Douglas D.
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