Saw blade construction

Details Saw blade construction Saw blade construction

1978-07-20

1980-06-03

Simpson, Othell M.

Cutting

Tool or tool with support

Endless band or belt type

B27B 3306

Patent

active

042055717

ABSTRACT:
A saw blade construction and method of forming such blade whereby the ends of a saw blade are abutted into end to end relationship to define an endless saw blade having a series of teeth formed along one edge to define a cutting edge, and having a back edge which is progressively sloped or tapered in opposite directions from an intermediate point on the back edge so that in a cutting operation the saw blade effects a cut along an edge portion of a workpiece on the down feed stroke of the blade and a progressive cut on the opposite edge of the workpiece whereby the teeth are rendered self-feeding on the progressive cut of the workpiece. In a modified embodiment the saw blade is formed with a plurality of alternately disposed down feed and progressive cutting edges.
The respective saw blades when so formed have a tapered rear edge which has one or more step cams spaced along the rear length thereof, which results in an improved cutting action and sawing speed; particularly, for materials such as hard metals, like stainless steel, Inconal and the like.

REFERENCES:
patent: 1850478 (1932-03-01), Schaefer
patent: 4023448 (1977-05-01), Bertini

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