Locomotive curve tracking system

Details Locomotive curve tracking system Locomotive curve tracking system

1986-12-11

1988-12-27

Reeves, Robert B.

Railway switches and signals

Block-signal systems

Recorders

73146, 246122R, 346 11, 346 33R, B61L 2500

Patent

active

047935774

ABSTRACT:
The position of an event, such as emergency braking, of a railroad vehicle enroute on a track mapped on a chart is accurately recorded by continually sensing the degree and direction of track curvature, and recording the track curvature and event data for later display. Speed is also recorded as a function of time to provide a scale as an aid to interpolation of a recorded event position between recorded curves. The event position thus recorded and identified by nearby curves in the track is accurate to within a small fraction of a mile.

REFERENCES:
patent: 1444886 (1923-02-01), Rounds
patent: 1516809 (1924-11-01), Duncan
patent: 1843959 (1932-02-01), Sperry
patent: 2363416 (1944-11-01), Henroteau
patent: 2978904 (1961-04-01), Bereznai
patent: 3869907 (1975-03-01), Plasser et al.
patent: 3992935 (1976-11-01), Schubert
patent: 4103547 (1978-08-01), Vrabel
patent: 4285483 (1981-08-01), Cipollone

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