US PATENT SUBCLASS 246 / 136
.~.~ Mechanical locking

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

131  DF  INTERLOCKING {8}
132  DF  .~ Electric actuation {2}
136.~.~ Mechanical locking {1}
137  DF  .~.~.~> Return-release indication {1}

DEFINITION

Classification: 246/136

(under subclass 132) Subject matter in which the locking is effected by mechanical connections between the actuating levers or devices.

(1) Note. This type of interlocking is known to the Railway Signal Association by the title "electromechanical interlocking".

SEE OR SEARCH THIS CLASS, SUBCLASS:

147, and appropriate indented subclasses for mechanical locking.