US PATENT SUBCLASS 188 / 326
.~.~.~.~ Operators at both ends of each shoe

Current as of: June, 1999
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188 /   HD   BRAKES

*  DD  WHEEL {10}
74  DF  .~ Transversely movable {4}
78  DF  .~.~ Expanding {9}
325  DF  .~.~.~ Two shoes {4}
326.~.~.~.~ Operators at both ends of each shoe

DEFINITION

Classification: 188/326

(under subclass 325) Device wherein shoe movement is effected by actuator means at the extremities of each frictional contacting member.