US PATENT SUBCLASS 212 / 111
.~.~.~.~ Variable elevation

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

71  DF  OVERHEAD {7}
76  DF  .~ Cable {8}
97  DF  .~.~ Load suspension {8}
110  DF  .~.~.~ Rope grip {2}
111.~.~.~.~ Variable elevation {2}
112  DF  .~.~.~.~.~> Carriage release
113  DF  .~.~.~.~.~> Side draft

DEFINITION

Classification: 212/111

Variable elevation:

(under subclass 110) Rope-grip carriers in which the hoisting rope may be gripped to the carriage at different elevations of the load.

SEE OR SEARCH THIS CLASS, SUBCLASS:

114, for variable elevation rope-gripping devices which consists in a member adapted to press against a sheave on the moving carriage.