US PATENT SUBCLASS 246 / 143
.~ Manual actuation


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

131  DF  INTERLOCKING {8}
143.~ Manual actuation {3}
*  DD  .~.~> Switch stands {1}
146  DF  .~.~> Electrical locking
147  DF  .~.~> Mechanical locking {5}


DEFINITION

Classification: 246/143

(under subclass 131) Subject matter in which units are actuated by manual power transmitted from the signal-cabin by rods or cables.

SEE OR SEARCH THIS CLASS, SUBCLASS:

111, through 119, for manual interlocking at grade-crossings, and drawbridges.

144, and 145, for interlocked switchstands.

393+, for devices located at switches for their manual actuation.

489, for miscellaneous mechanism for manually operating switches or signals.

SEE OR SEARCH CLASS 74, Machine Element or Mechanism,

469+, for miscellaneous control lever and linkage systems.