Heater system for railroad switch

Details Heater system for railroad switch Heater system for railroad switch

1976-12-03

1978-03-28

Blix, Trygve M.

Railway switches and signals

Switches

Snow protected

104279, E01B 724

Patent

active

040811611

ABSTRACT:
A heater is provided to supply hot air through apertured distribution ducts at a rate of at least 1300 CFM, a temperature of at least 250.degree. F, and a velocity of at least 3000 FPM so as to clear the entire switch area of ice, snow and water. The parallel, spaced distribution ducts are apertured so as to direct the air not only outwardly toward the rails but also inwardly to clear the central portion of the rail grade. The switch grade is therefore kept dry and the movable rails are free to be shifted when required.

REFERENCES:
patent: 2898062 (1959-08-01), Magnus
patent: 3223835 (1965-12-01), Cherry et al.
patent: 3312820 (1967-04-01), Watkins
patent: 3697746 (1972-10-01), Patterson et al.

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