US PATENT SUBCLASS 212 / 201
.~ Length of hoisting cable between boom and load decreases automatically as boom is raised

Current as of: June, 1999
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212 /   HD   TRAVERSING HOISTS

199  DF  HAVING BOOM SHIFTABLE VERTICALLY ALONG A LINEAR PATH {5}
201.~ Length of hoisting cable between boom and load decreases automatically as boom is raised

DEFINITION

Classification: 212/201

Length of hoisting cable between boom and load decreases automatically as boom is raised:

(under subclass 199) Apparatus wherein the load is suspended beneath the boom* by an elongated flaccid strand and means are provided whereby the strand is drawn in toward the boom as the boom moves upwardly.