. The street railway review . U U U U U IJsJJ U U U U U U LI UgLI U| u u u u LOCATION ANU CONNECTIONS OI TRACK SWITCH. with oil, so that all of the working parts of the switch move in a bathof oil. Hie switch mechanism is midc of tool steel. The cam-plateproduces a semi-lock, but docs not prevent turning of the switchwith the switch officers of the American Autonijitic Switch Co. are as fol-. an approaching car. To turn the switch from rest in either position,to the other position, the car must pass over the insulated sectionwith the controller handle on the first or second point, the


. The street railway review . U U U U U IJsJJ U U U U U U LI UgLI U| u u u u LOCATION ANU CONNECTIONS OI TRACK SWITCH. with oil, so that all of the working parts of the switch move in a bathof oil. Hie switch mechanism is midc of tool steel. The cam-plateproduces a semi-lock, but docs not prevent turning of the switchwith the switch officers of the American Autonijitic Switch Co. are as fol-. an approaching car. To turn the switch from rest in either position,to the other position, the car must pass over the insulated sectionwith the controller handle on the first or second point, thereby per-mitting current to flow through the switch box. If the switch is right position as the car approaches, the motorman turns off thecurrent and drifts over the insulated section the power off. The mechanism within the switch box comprises essentially asolenoid coil, within which moves a plunger, having at its lower enda specially designed cam-plate, which by its movement when theplunger is raised operates a lever mechanism to throw the switchpoint. It will be understood that when an impulse of current passesthrough the magnet coils, the plunger will be raised and the switch MECHANISM OK TRACK SWITCH. point moved to the position opposite to the one which it previouslyoccupied. The claims set forth in favor of tliis new device include the fol-lowing: As the switch is compl


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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads