US PATENT SUBCLASS 37 / 396
.~.~ Including means to control digging, hoisting, and dumping


Current as of: June, 1999
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37 /   HD   EXCAVATING

394  DF  CABLE-OPERATED (E.G., DRAGLINE) {3}
395  DF  .~ Boom-type {2}
396.~.~ Including means to control digging, hoisting, and dumping


DEFINITION

Classification: 37/396

Including means to control digging, hoisting, and dumping:

(under subclass 395) Apparatus wherein the hauling and hoisting wires are manipulated by a spring, latch, control briddle, draft briddle, toggle mechanism, or similar implement to regulate loading and unloading operations. [figure] [caption]A - Bucket hood; B - Bucket; C - Loading chain; D - Bucket forward end; E - Connecting means for hoist chain and bucket; F -; Hoist chain; G, K - Bucket trunions; H - Check line; J - Hoist line to boom; L - Supplementary control cable; M - Pulley block; N - Dragline

SEE OR SEARCH CLASS

212, Traversing Hoists,

167, for a traversing hoist with a haul-in line; subclass 239 for means to swing boom vertically having a flexible cable.

254, Implements or Apparatus for Applying Pushing or Pulling Force,

264+, for a power transmitting pulley and a rope or belt in either drive or in cable return means and a device or member for contacting and guiding a moving cable.

414, Material or Article Handling,

142.9, for loading or unloading on a marine vessel by use of a hoist line having a scoop or scraper.