.~.~.~> Speed change gears for maintaining constant cutting speed
DEFINITION
Classification: 82/143
Speed changing gears:
(under subclass 142) Subject matter wherein significance is attributed to a device for giving rotation to a chuck or faceplate for a given rotation of a cone-pulley.
(1) Note. This subclass includes only such devices as are specifically designed for lathes, such as back-gears, and not for general application.
SEE OR SEARCH CLASS
29, Metal Working,
64,.
74, Machine Element or Mechanism, appropriate subclasses indented under Gearing.
408, Cutting by Use of Rotating Axially Moving Tool,
124+, for machines for cutting in the manner of that class, including multiple speed drive means.
