US PATENT SUBCLASS 191 / 86
.~.~ Erector release

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

45 R  DF  COLLECTORS {8}
85  DF  .~ Trolley retrievers {4}
86.~.~ Erector release {2}
87  DF  .~.~.~> Fluid pressure erector
88  DF  .~.~.~> Spring erector {1}

DEFINITION

Classification: 191/86

(under subclass 85) Trolley retrievers wherein the erecting force is released when the trolley leaves the conductor, thus allowing the trolley to drop.