Operating railroad switches

Details Operating railroad switches Operating railroad switches

1997-02-07

1998-06-30

Morano, S. Joseph

Railway switches and signals

Fluid-motor actuation

246258, 246393, B61L 504

Patent

active

057721572

ABSTRACT:
The railroad power switch operates from the energy stored in a hydraulic accumulator. A pump charges the accumulator and keeps it charged. A power cylinder acts on the moveable rail of a railroad switch through this hydraulic energy. The energy opens the switch, closes it, and stabilizes it during train trailing through the switch. A spring pack supplements this hydraulic energy in stabilizing the switch.

REFERENCES:
patent: 3015464 (1962-01-01), Bush
patent: 4428552 (1984-01-01), Frank et al.
patent: 5375796 (1994-12-01), Turner et al.
patent: 5417392 (1995-05-01), Wyatt

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