Segment-shaped blade
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United States of America Patent
Stats
-
Aug 18, 1981
Grant Date -
N/A
app pub date -
Nov 14, 1979
filing date -
Nov 14, 1979
priority date (Note) -
Expired
status (Latency Note)
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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.
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