Circular cut-off blade

Details Circular cut-off blade Circular cut-off blade

1976-01-12

1976-12-28

Vlachos, Leonidas

Metal working

Upholstered article making

Tufting

29 98, 29101, B26D 100

Patent

active

039992659

ABSTRACT:
The circular cut-off blade includes an arcuate body of about 90.degree.-180.degree. approximately in length and having parallel sides, and a continuous arcuate enlarged head along one side edge of the body throughout its length, said body and head being of uniform cross section. The opposed side walls of the head and its top surface being transversely concave and hollow ground to define therebetween continuous cutting corners. The leading edge face of the body and head being cut away inwardly and rearwardly to define a clearance angle with said leading edge face defining with said head an arcuate cutting edge. Said body and head after wear of its cutting edge adapted for progressive grinding of its clearance angle leading edge face to provide a progressive series of cutting edges along the length of said blade.

REFERENCES:
patent: 1738912 (1929-12-01), Luers
patent: 2329872 (1943-09-01), Brownlee

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