Pressure sensitive picture frame mat opening cutter

Details Pressure sensitive picture frame mat opening cutter Pressure sensitive picture frame mat opening cutter

1979-11-19

1980-11-18

Simpson, Othell M.

Cutlery

Cutting tools

With guard and/or guide

B26B 2900

Patent

active

042337364

ABSTRACT:
A picture frame mat opening cutter is adapted for cutting both circles and ovals and depth of cut can be controlled by the amount of downward pressure applied during use. The cutter body mounts a retractable cable wound on a rotatable spool; a cutting blade mounted on a spring-loaded, slidable support bar; and a rotatable, vertically movable control knob which bears on the support bar and is manually grasped and manipulated for moving the cutter and controlling the depth of cut according to the amount of pressure applied to the knob. Beveled oval and circular picture frame mat openings are cut utilizing the retractable cable in conjunction with positioning pins on the surface of a mat to be cut. By modification, straight line cuts are also obtainable.

REFERENCES:
patent: 2924010 (1960-02-01), Umholtz
patent: 4064626 (1977-12-01), Meshulam et al.
patent: 4176452 (1979-12-01), Duggins et al.

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