Circular mat cutting apparatus

Details Circular mat cutting apparatus Circular mat cutting apparatus

1988-01-12

1989-11-07

Yost, Frank T.

Cutting

With work immobilizer

Gapped work-constrainer

83468, 8352215, 83564, 83588, 83591, 836475, 83826, 83829, 33 2701, 33 2704, B26D 508, B26D 702

Patent

active

048784095

ABSTRACT:
An apparatus for cutting circular arcs or holes in a picture mat includes a flat base upon which the mat rests and a platform provided above the base . A disc member is suitably mounted for rotation adjacent the platform about a center axis. A crank mechanism having a axle extending perpendicularly through the disc member and a mounting arm attached to an extending perpendicular arm from the end of the axle are provided on the disc member. This crank mechanism is slidably mounted to the disc member. A cutting blade is then adjustable mounted along the mounting arm and at an angle to the mat. The circles or arcs are cut in the mat by rotation of the crank mechanism--at a location determined by the position of the crank mechanism and of the disc member, and with a diameter determined by the position of the cutting blade relative to the mounting arm.

REFERENCES:
patent: 766158 (1904-07-01), Starr
patent: 2512786 (1950-06-01), Borg
patent: 3429042 (1969-02-01), Lawrence et al.
patent: 4112793 (1978-09-01), Pierce
patent: 4530156 (1985-07-01), Kettlestrings
patent: 4624057 (1986-11-01), Hursey
Oval -Circle Cutter Ad -1983.
Oval-Master -Reference Parts -1983.

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