US PATENT SUBCLASS 246 / 152
.~.~.~ Compensators

Current as of: June, 1999
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246 /   HD   RAILWAY SWITCHES AND SIGNALS

131  DF  INTERLOCKING {8}
143  DF  .~ Manual actuation {3}
147  DF  .~.~ Mechanical locking {5}
152.~.~.~ Compensators {1}
153  DF  .~.~.~.~> Counterweight {1}

DEFINITION

Classification: 246/152

(under subclass 147) Subject matter having devices for compensating for the expansion and contraction of wires, rods and similar connections used between signals, switches, etc., and their operating means.

SEE OR SEARCH CLASS

74, Machine Element or Mechanism,

111+, for details of intermittent-grip devices, and subclass 501.5 for constant-tension-sustaining devices for flexible cable operators.

368, Horology: Time Measuring Systems or Devices,

182, for compensation devices used with pendulums.