US PATENT SUBCLASS 212 / 80
.~.~.~.~.~ Double tackle

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

71  DF  OVERHEAD {7}
76  DF  .~ Cable {8}
77  DF  .~.~ Load-handling {2}
78  DF  .~.~.~ Draft-rope {1}
79  DF  .~.~.~.~ Dumping {3}
80.~.~.~.~.~ Double tackle

DEFINITION

Classification: 212/80

Double tackle:

(under subclass 79) Dumping draft-rope hoists of the above type in which the receptacle is supported by two tackles or cables capable of relative movement.

SEE OR SEARCH THIS CLASS, SUBCLASS:

81, for similar devices for operating grab buckets and the like.