B - Operations – Transporting – 27 – B
Patent
B - Operations, Transporting
27
B
76/6, 143/72
B27B 33/02 (2006.01) B23D 61/12 (2006.01)
Patent
CA 1126135
ABSTRACT OF THE DISCLOSURE A saw blade having improved metal cutting characteristics in which the tip of each tooth is formed to provide a primary rake face extending from the tip of the tooth for a distance of 0.007 to 0.020 inch and having a posi- tive rake angle of 12° to 25°, a secondary rake face extending from the pri- mary rake face to the gullet of the tooth and having a positive rake angle less than 12°, a primary end relief surface extending from the tip of the tooth for a distance of 0.007 to 0.030 inch and forming a relief angle of 10° to 25°, and a secondary end relief surface extending from the primary end relief surface to the gullet of the next successive tooth and forming a relief angle greater than the relief angle of the primary end relief surface. The blade can be made by applying a deforming force to the tips of the teeth of a precursor saw blade.
352756
Crosby Stephen R.
Stellinger Thomas S.
Smart & Biggar
Wallace Murray Corporation
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