Cutting by use of rotating axially moving tool – Tool or tool with support – Including detailed shank
Patent
1973-07-13
1976-10-05
Simpson, Othell M.
Cutting by use of rotating axially moving tool
Tool or tool with support
Including detailed shank
85 46, 151 7, 279 1Q, 279 7, 279 62, 279100, 403343, 408239R, B23B 3104
Patent
active
039841928
ABSTRACT:
A rotary spindle of a drill mount has a free end provided with a thread whose angle of rise is so selected that its tangent is at least equal to the coefficient of static friction of steel on steel.
REFERENCES:
patent: 1407335 (1922-02-01), Reynolds et al.
patent: 1465612 (1923-08-01), Morse
patent: 1532329 (1925-04-01), McConnell
patent: 1943879 (1934-01-01), Rea
patent: 2112108 (1938-03-01), Mackenzie
patent: 3156323 (1964-11-01), Boyer, Sr.
Bleicher Manfred
Falchle Jorg
Hahner Reinhardt
Schmid Wolfgang
Sigg Horst
Bilinsky Z. R.
Robert Bosch G.m.b.H.
Simpson Othell M.
Striker Michael J.
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