Railway switches and signals – Signals – Track reflectors
Patent
1978-01-16
1978-08-22
Blix, Trygve M.
Railway switches and signals
Signals
Track reflectors
40587, 340 49, 350 97, B61L 518
Patent
active
041084063
ABSTRACT:
A passively-actuated visual warning reflector device for providing a "flashing", oscillating, or fluctuating visual signal, the invention is readily adapted to be mounted to a moving vehicle, particularly the side of a train car, to warn of the presence of the vehicle at route intersections and crossings. The present reflector device is comprised of a reflective or luminous substrate member attached to a surface of either a vehicle or a stationary structure, an apertured disk member being mounted in superimposed relation to the reflective member for swinging movement relative thereto, thereby partially obscuring varying portions of the reflective member on movement of the disk member to provide the effect of an "on-off" light signal. The disk member is provided with circumferential flanges which catch air currents and cause the disk member to swing relative to the reflective member.
REFERENCES:
patent: 1955966 (1934-04-01), Kingsley
patent: 2925584 (1960-02-01), Bonanno
Blix Trygve M.
Eisenzopf Reinhard J.
Jacobson Harvey B.
O#Brien Clarence A.
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