Cutting by use of rotating axially moving tool – Tool-support with means to receive tool-position indicator
Patent
1975-03-10
1976-10-12
McGehee, Travis S.
Cutting by use of rotating axially moving tool
Tool-support with means to receive tool-position indicator
408135, B23B 4904, B23B 4726
Patent
active
039854639
ABSTRACT:
Simultaneous rotation and feed or withdrawal movements are imparted to a shaft carrying a screw tapping element in an automatic thread cutting apparatus by a rack and pinion drive on which is mounted a ramp-shaped cam, the rack and pinion, through a gear train, effecting rotation of the shaft, and the cam through a lever linkage effecting feed or withdrawal of the shaft and tapping element.
REFERENCES:
patent: 1173574 (1916-02-01), Hayden
patent: 1946523 (1934-02-01), Cramer
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