Improvements in Contact Making and Circuit Controlling Devices employed in connection with the Signalling and Point Shifting Arrangements and the Time Recording Devices of Electric Tramways and the like.

摘要

12,694. Brecknell, Munro, & Rogers, and Munro, E. M. May 31. Electric railways and tramways on the overhead - conductor system. Switches.-An electric contactmaker for closing circuits to signalling and time - recording apparatus or points-operating mechanism on electric railways and tramways makes contact through a switch 12, 14 and also through the trolly. An auxiliary conductor 9, held in insulating-clamps 8 on arms 5 pivoted to the hangers 1 of the trolly wire 10, carries a clamp 11 with one part 12 of the switch. The other part 14 of the switch is connected to the ear 2. The arms 5 are held by an adjustable stop 7 so as to keep the conductor 9 clear of the wire 10 and the switch 12, 14'open. The trolly 16 engages the conductor 9 and swings it on its pivots 4, so closing the switch 12, 14 and also connecting the conductors 9, 10., The switch 12, 14 may have rubbing contacts as shown, or the contact 12 may simply bear on the contact 14.