US PATENT SUBCLASS 191 / 85
.~ Trolley retrievers

Current as of: June, 1999
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191 /   HD   ELECTRICITY: TRANSMISSION TO VEHICLES

45 R  DF  COLLECTORS {8}
85.~ Trolley retrievers {4}
86  DF  .~.~> Erector release {2}
90  DF  .~.~> Fluid pressure-retracted
91  DF  .~.~> Spring-retracted {1}
94  DF  .~.~> Weight-retracted

DEFINITION

Classification: 191/85

(under subclass 45) Trolley modifications or attachments for trolleys for causing the trolley to move downward, so as to avoid fouling the conductor system when the trolley leaves the conductor.