Railway switches and signals – Signals – Highway crossing
Patent
1999-03-18
2000-09-12
Morano, S. Joseph
Railway switches and signals
Signals
Highway crossing
246473R, 2464733, 246477, B61L 2900
Patent
active
061165468
ABSTRACT:
This invention, is a PROCESS, for creating a flashing red light at a railroad-highway grade crossing.
This PROCESS is accomplished by the use of two units. The first unit houses a light that is capable of casting a very intense beam out ahead of the train. It also houses a means to oscillate this light from side to side (left and right) using a motor mechanism, like a heavy duty windshield wiper motor.
The second unit is a round, red reflector that is capable of reflecting the light in both directions down the roadway that intersects the railway. This PROCESS is accomplished as the oscillating light beam strikes the red reflector for just a split second with each pass, creating the appearance of a flashing red light, which causes motorists, and others, to know that a train is approaching the grade crossing.
The reflector is shaded from the sunlight, leaving it in relative darkness. This enable motorists to see the reflection (the flashing red light) even during daylight hours. The light unit is mounted securely to the front of the train at approximately 13 to 15 feet above the railroad tracks. The reflector unit is installed at the grade crossing at the same height as the light unit.
REFERENCES:
patent: 2262239 (1941-11-01), Kennelly
McCarry, Jr. Robert J.
Morano S. Joseph
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