Machine for deforming the gullets of saw blades to improve resis

Details Machine for deforming the gullets of saw blades to improve resis Machine for deforming the gullets of saw blades to improve resis

1984-03-05

1986-04-01

Husar, Francis S.

Metal deforming

By tool-couple embodying nonplanar tool-face

Similar tool-faces

76112, 76 25R, 76 51, B21D 3710, B23D 6300

Patent

active

045789843

ABSTRACT:
A machine to deform the gullets of saw blades, thereby increasing the resistance of the saw blade to fatigue cracks, by compressing the gullet bottom, the compression being accomplished by pressing the saw blade between one fixed die and one which is pressed upon by a threaded member, said member being turned a part of a turn, thereby moving axially, by being attached to a lever arm, which is lifted and pressed down by a piston, and comprising a mechanism for advancing the saw blade one tooth pitch after each compressing cycle.

REFERENCES:
patent: 1143934 (1915-06-01), Begg
patent: 2425876 (1947-08-01), Hively
patent: 2607243 (1952-08-01), McEwan
patent: 2666347 (1954-01-01), Richardson
patent: 2842012 (1958-07-01), Nelson et al.
patent: 2998839 (1961-09-01), Ingwar
patent: 3357462 (1967-12-01), Craven
patent: 3416394 (1968-12-01), Stier et al.
patent: 3466707 (1969-09-01), Click et al.
patent: 3803898 (1974-04-01), Speakman
patent: 4018109 (1977-04-01), Stier
patent: 4023446 (1977-05-01), Annas

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