.~.~ Advance means includes relatively movable transmission element
DEFINITION
Classification: 173/160
(under subclass 152) Apparatus in which an element is moved relative to both basic motor structure and the tool for transmitting motion to the tool to cause or control forward movement of the tool.
(1) Note. Elements such as the stator and rotor of a turbine motor, piston and cylinder of an expansible chamber motor, etc., are considered to be "basic motor structure", and the transmitting element must be moved relative to all such basic motor structure for inclusion under this definition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
38, for a swinging arm advance means with tool guided to rectilinear advance, said swinging arm usually being motor operated.
144, for reciprocatory drive and advance which originate from same mechanical element, said element usually being motor driven.
145+, for a rotary drive and advance which originate from same mechanical element, said element usually being motor driven. 147, for a flexible member usually motor driven to cause advance.
