Railroad track alarm

Details Railroad track alarm Railroad track alarm

1975-04-21

1977-02-22

Woodiel, Donald O.

Railway switches and signals

Roadway-defect protection

200 6142, 246217, 340421, B61L 2304, H01H 302

Patent

active

040088707

ABSTRACT:
A railroad track alarm. The alarm comprises a switch box mountable between the rails of a railroad track. There are openings in the ends of the switch box and first and second switches located in the switch box. Two rods extend outwardly from inside the switch box through the openings, one rod towards each rail of the track when the alarm is in its useful position between the rails. The alarm has means urging each rod outwardly. Each rod is linked to a switch so that when the rods move outwardly relative to each other by a first amount the first switch is tripped and when the rods move outwardly relative to each other by a second amount, larger than the first, the second switch is tripped. The alarm is simple to set. Unlike prior art alarms it sets an alarm for wide gauge and for other track damage.

REFERENCES:
patent: 551622 (1895-12-01), Donovan et al.
patent: 626903 (1899-06-01), Gumbes, Jr.
patent: 1155373 (1915-10-01), Romig
patent: 1168449 (1916-01-01), Winstead
patent: 1408395 (1922-02-01), Pokorny
patent: 2418508 (1947-04-01), Goepfrich
patent: 2557254 (1951-06-01), Bovard
patent: 2958858 (1960-11-01), Eversole
patent: 3885116 (1975-05-01), Kodaira

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