Segment-shaped blade

Details Segment-shaped blade Segment-shaped blade

1979-11-14

1981-08-18

Hinson, Harrison L.

Metal working

Filing

76101SM, B23D 7100

Patent

active

042838193

ABSTRACT:
A segment-shaped blade is provided for use in a rotatable cylindrical tool for machining elastic material, particularly pneumatic rubber tires for vehicles. The blade comprises teeth defined at the convex periphery by approximately V-shaped or circular or oval cuts. Said teeth include one or more triangular teeth and one or more trapezoidal teeth, which precede said triangular teeth in the direction of rotation of the tool and have prongs that are directed toward each other and are bent to different sides out of the plane of the blade. The triangular tooth or teeth are divided by one or more radial cuts into two or more triangular teeth, the prongs of which are bent to different sides out of the plane of the blade. The trapezoidal teeth have preferably legs of equal length. The two prongs of a trapezoidal tooth which are directed toward each other are defined in known manner by a punched circular hole, which is symmetrical to the periphery of the tooth. The two outer edges of the tooth which adjoin the prongs are straight and tangential to the punched hole.

REFERENCES:
patent: 2896309 (1959-07-01), Jensen
patent: 2975504 (1961-03-01), Beutham
patent: 3102325 (1963-09-01), Hemmeter
patent: 3351997 (1967-11-01), Neilsen
patent: 3680185 (1972-08-01), Wood
patent: 4059875 (1977-11-01), Jensen
patent: 4091516 (1978-05-01), Jensen et al.

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