Saw blades and method of making same

Details Saw blades and method of making same Saw blades and method of making same

1992-02-21

1993-03-16

Yost, Frank T.

Cutlery

Blades

Metallurgical feature

30355, 30369, 125 22, B26B 902

Patent

active

051932806

ABSTRACT:
A saw blade for a two-blade, contra-reciprocating saw has two strips spot welded together. Teeth are formed by scallops cut along an edge of each strip with lands between these scallops. Abrasive grit, such as tungsten carbide chips, is brazed on the teeth except on the sides of the teeth which rub against each other as the blades reciprocate. The main cutting surfaces are the lands which are longer on one strip than the other. The arrangement is useful for cutting masonry and metal products and reduces stresses on the blade.

REFERENCES:
patent: 2442153 (1948-05-01), Pyl
patent: 3496973 (1970-02-01), Ballard
patent: 3988955 (1976-11-01), Engel et al.
patent: 4893411 (1990-01-01), Leini
patent: 4969270 (1990-11-01), Berghauser et al.
patent: 4979305 (1990-12-01), Leini
patent: 5018276 (1991-05-01), Asada

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