.~.~> Telescoping motion related to relative axial rotation or oscillation
DEFINITION
Classification: 175/321
(under subclass 320) Apparatus in which separate sections of tool shafting cooperate with one another so as to be slidably extensible or collapsible (e.g., one section slidable within a second section) and including below ground tool advancing devices such as fluid operated expansible chamber feed means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
94, for below ground feed means for a below ground prime mover.
257+, and the search there noted for tool removable or insertable through or around driving or driven shaft.
293+, for telescoping shaft sections wherein the sections are provided with opposing faces which are adapted to contact upon movement of the sections to cause an impact or jar.
SEE OR SEARCH CLASS
285, Pipe Joints or Couplings, 298+, for variable length pipe joints.
403, Joints and Connections,
52+, for articulated members in general.
464, Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts,
18+, for a flexible coupling between fluid-conducting rotary shafts; and subclasses 162+ for a drive coupling facilitating relative axial motion between coupled members.
