摘要:
An apparatus for sensing movement of a point rail away from a stock rail by a selected distance, by closing a switch to shunt a track circuit, with means for resetting the apparatus to open the switch only after manual resetting of the point rail.
摘要:
An apparatus for sensing movement of a point rail away from a stock rail by a selected distance, by closing a switch to shunt a track circuit, with means for resetting the apparatus to open the switch only after manual resetting of the point rail.
摘要:
A lost motion apparatus for adapting a typical in-tie switch machine, designed for use with interconnected switch points, to be used as an in-tie machine for moving the movable V-point of a movable point frog assembly.
摘要:
A control mechanism for moving switch points on a railroad track, having a drive screw driven by a motor, a traveling block moving along the drive screw to position the switch points, an end stop on the drive screw for limiting movement of the traveling block, a hand crank for manually turning the drive screw, and a torque limiting clutch on the hand crank.