US PATENT SUBCLASS 52 / 111
MECHANISM OPERATED RELATIVELY MOVABLE SHAFT ASSEMBLY

Current as of: June, 1999
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52 /   HD   STATIC STRUCTURES (E.G., BUILDINGS)

111MECHANISM OPERATED RELATIVELY MOVABLE SHAFT ASSEMBLY {6}
112  DF  .~> Opposed barrier-engaging; e.g., rock drill column
113  DF  .~> With spring-actuated return
114  DF  .~> Moves about vertical axis
115  DF  .~> Fluid pressure actuated
116  DF  .~> Tilts relative to base {1}
121  DF  .~> Longitudinally extensible by flexible drive or hoist

DEFINITION

Classification: 52/111

(under the class definition) Structure comprising a rigid elongated member or construction at least part of a section of which is movable relatively to another section or to a base and mechanical motive means for applying power to affect such movement, e.g., motor, spring, pulley, crank or cable.

SEE OR SEARCH THIS CLASS, SUBCLASS:

108, for a strip which can be coiled for storage or projected outwardly to a rigid position.

109, for a lazy tong extension unit.

110, for a vehicle shell attached shaft, e.g., antenna.

122.1+, for a static structure with hoist or handle means for adjusting component level or assembling.

143, for another static structure with a transportation feature. 146+, for a vertical structure with diagonal brace or guy.

632, for a manually extensible shaft.

633+, for openwork structures, particularly subclasses 648+ for three dimensional open work, e.g., tower or mast.

726.1+, for an end-to-end connected section shaft.

SEE OR SEARCH CLASS

182, Fire Escape, Ladder, or Scaffold, appropriate subclasses for a mast with a workman's platform, particularly

62.5, for such an apparatus having extensible vertical and nonvertical sections.

212, Traversing Hoists, appropriate subclasses for a collapsible, extensible, horizontally swinging, or vertically swinging, boom for a load-handling apparatus. Patents placed as originals in Class 212 should claim structure peculiar to load-handling apparatus.

248, Supports,

351+, for a prop or brace there provided for.

254, Implements or Apparatus for Applying Pushing or Pulling Force, 264+, for a derrick hoist having means to hoist an external load.

343, Communications: Radio Wave Antennas,

874+, for mast or tower type antennas with a significant recitation of an electrical feature.

362, Illumination,

431, for an electrically operated light supporting post.