Blade for cutting wallboard

Details Blade for cutting wallboard Blade for cutting wallboard

1977-06-27

1979-01-02

Peters, Jimmy C.

Cutlery

Cutting tools

With blade moving means

30366, 30392, B26B 700

Patent

active

041319966

ABSTRACT:
A blade having a chisel point at one end and a cutting point intermediate its ends is mounted in the blade holder of a sabre saw. As the sabre saw is moved along the wallboard to be cut, the chisel point on each stroke moves through the gypsum core, its rearwardly inclined end forcing the gypsum back into the kerf. The chisel point need only fracture the paper on the rough side of the wallboard, although it may pass completely therethrough. The cutting point severs the paper on the finished side of the wallboard.

REFERENCES:
patent: 1955350 (1934-04-01), Sweet
patent: 2239291 (1941-04-01), Martin
patent: 3033251 (1962-05-01), Atkinson
patent: 3436824 (1969-04-01), Huston
patent: 3572202 (1971-03-01), Gerber

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