Locomotive safety device

Details Locomotive safety device Locomotive safety device

1985-11-21

1987-01-20

Abrams, Neil

Geometrical instruments

339 19, 340 64, 246 1R, H01R 3108

Patent

active

046376682

ABSTRACT:
The invention environment is a conventional electrically powered railroad locomotive wherein a main generator powers the underlying traction wheels and wherein an auxiliary generator powers low-voltage locomotive components (such as alarms, wheels directional and acceleration control, etc.) through longitudinally extending electrical circuitry terminating at one or more multi-pins receptacles. The locomotive safety device of the present invention takes the form of a multi-perforate plug removably engageable with selected pins of a locomotive multi-pins receptacle and having internal circuitry tending to enforce the perilous "blue flag" condition of a stopped locomotive, such enforcement including the steps of initially warning the would be operator that the "blue flag" condition exists and thereafter making it practically impossible for such warned operator to initiate locomotive movement. The internal electrical circuitry of the inventive safety device plug also might include ancillary functions such as test switch and performance indicator.

REFERENCES:
patent: 3902075 (1975-08-01), Oros
patent: 4222033 (1980-09-01), Brown
patent: 4274080 (1981-06-01), Brunken

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