Self-controlled on-grade monorail track switch and method

Details Self-controlled on-grade monorail track switch and method Self-controlled on-grade monorail track switch and method

1976-04-22

1978-06-13

Sheridan, Robert G.

Railways

Switches

For toothed rail

104 38, 104 47, 246114A, 246115, E01B 700

Patent

active

040942520

ABSTRACT:
A monorail track switch and method is disclosed wherein the track switch senses the approach of a train and automatically aligns itself to accommodate passage of the train. Circuits are provided to selectively deenergize a movable track section when in nonaligned position and to re-energize the track section when properly aligned. Novel structure and method is also provided for lowering the movable track section onto rollers to facilitate movement and thereafter lifting the track section into horizontal alignment with the train path. Electronic lockout circuits prevent a train from overrunning the switch when the switch is in a nonaligned position.

REFERENCES:
patent: 1068807 (1913-07-01), Murray
patent: 1600767 (1926-09-01), Lockwood
patent: 1800722 (1931-04-01), Edson
patent: 2841699 (1958-07-01), Kemmerer
patent: 2881308 (1959-04-01), Quinlan
patent: 2987008 (1961-06-01), Melmer
patent: 3106898 (1963-10-01), Prosin
patent: 3524054 (1970-08-01), Smith
patent: 3575596 (1971-04-01), Schatzel
patent: 3735709 (1973-05-01), Matsumoto et al.
patent: 3747537 (1973-07-01), Matsumoto et al.

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