Metal tools and implements – making – Blank or process
Patent
1975-05-12
1977-01-04
Gilden, Leon
Metal tools and implements, making
Blank or process
29414, 76101A, B21K 2100
Patent
active
040006670
ABSTRACT:
A pair of boring bars are constructed from a single double length straight bar by providing a central bend of suitable angle and curvature to provide a pair of offset supports for a pair of cutting inserts having cutting points projecting to an offset cutting position relative to the periphery of the bar. Cutting out a small segment at the center of the bend provides two boring bars with curved ends. Machining of a chip clearance path and insert pocket on one side or the other of each bar completes a pair of left or a pair of right or opposite hand boring bars.
REFERENCES:
patent: 1995234 (1935-03-01), Wenzlick
patent: 2091128 (1937-08-01), Anderson
patent: 2310992 (1943-02-01), Proksa
patent: 3015241 (1962-01-01), Kurwal
patent: 3241404 (1966-03-01), Sirola
Gilden Leon
The Valeron Corporation
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