Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals (B61L11/00 takes precedence)

Child Classifications

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• B61L 5/02 Mechanical devices for operating points or scotch-blocks
• B61L 5/04 Fluid-pressure devices for operating points or scotch-blocks
• B61L 5/06 Electric devices for operating points or scotch-blocks
• B61L 5/08 Underground actuating arrangements, e.g. for tramways
• B61L 5/10 Locking mechanisms for points; Means for indicating the setting of points
• B61L 5/12 Visible signals
• B61L 5/20 Audible signals, e.g. detonator