FIELD: transport.
SUBSTANCE: proposed apparatus incorporates motor-driven actuating mechanism. The motor is linked up with moving unit that displaces vie actuator screw to position switch blades. The actuator screw limit stop serves to restrict the moving unit travel. Starting handle serves to rotate manually the actuator screw and is linked up with latter via the clutch that limits the torque.
EFFECT: higher reliability and strength.
3 cl, 1 dwg
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