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and the motors 6 and 12 energized. When the motor 6 is energized, the pinion 5 re- volves and so'imparts like movement to the quadrant 4, thereby actuating the valve 3 5 to closed position. As the valve 3 reaches closed position the forward end of the sector 4 engages. the circuit breaker 13 and actuates the latter to break the circuit 25 thereby de- energizing the motors 6 and 12. Immedi- 10 ately succeeding the operation of the circuit breaker the sector 4 engages' the stop lug 14, thereby preventing further movement of the sector under the action of the revolving armature, the armature tending to revolve 15 under its own momentum. Simultaneously with the operation of the motor 6, the motor 12 operates and opens the valve 9 to bleed the brake pipe, the mo- tor 12 being desnergized as long as the valve 20 9 is open and the lug 15 acting to check the movement of the sector 10 under the action of the armature of the motor 12. Located along the trackway and suitably spaced apart and preferably controlled from 25 the respective road signals are track instru-
ments. 28 connected to suitable means 22 with the signal. I claim: The combination with a controlling ele- ment of a motor car, of a toothed sector se- 30 cured to said element, an electric motor, a pinion on the armature shaft of said motor meshing with said sector, an electric cir- cuit including said motor, a circuit breaker connected in said circuit and disposed in the 35 path of movement of said sector, a stop lug disposed adjacent to said circuit breaker in the path of movement of said sector to ar- rest the movement of the sector under the action of the revolving armature of the mo- 40 tor succeeding the operation of the circuit breaker, and a circuit closer for closing said circuit. In testimony whereof I affix my signature in presence of two witnesses. VICTOR E. BOCK. Witnesses: J. W. LosH, CLAYBONE BREAUX.
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