Locomotive track curvature indicator

Details Locomotive track curvature indicator Locomotive track curvature indicator

1977-02-07

1978-08-01

Woodiel, Donald O.

Measuring and testing

Tire, tread or roadway

Tire inflation testing installation

33 1Q, G01M 1702

Patent

active

041035470

ABSTRACT:
A system for dynamically measuring and displaying track curvature information to a locomotive engineer on a real-time basis. A car mounted sensor produces a variable output responsive to changes in the car's orientation caused by variation in track curvature, a control circuit converts the sensor output into an electrical signal representative of the changes in orientation, and an indicator receives the signal and provides a dynamic display of the derived track curvature information. In a preferred embodiment, the sensor comprises an extendable line having one end attached to a bracket that is connected to the center of a supporting truck cross-frame, while the other end is wound on a retractable supply reel mounted on the car's frame. In response to relative movement between the car's frame and the supporting truck, caused by movement of the car over curved track, the length of the line withdrawn from the reel varies and is monitored by an electrical potentiometer that produces an output signal indicative of track curvature.

REFERENCES:
patent: 3126633 (1964-03-01), Plasser et al.
patent: 3869907 (1975-03-01), Plasser et al.

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