Incandescent reflector lamp for railway warning-signal apparatus

Details Incandescent reflector lamp for railway warning-signal apparatus Incandescent reflector lamp for railway warning-signal apparatus

1979-05-22

1981-04-07

Lechert, Jr., Stephen J.

Illumination

Modifier mountable on light source envelope

362309, 362310, 362311, F21M 314

Patent

active

042610273

ABSTRACT:
The separate reflector and light bulb components presently used in flashing-light signal apparatus employed at railway crossings are replaced by a sealed-beam type incandescent reflector lamp having a window-aperture in the concave reflector portion of the lamp envelope which is adapted to be aligned with a side opening in the lamp-housing of the signaling apparatus and thus permits the operation of the light source inside the sealed-beam lamp to be checked visually by the engineer of an approaching train. Additional cost and functional advantages are obtained by also making the separate red-colored lens component of the signal apparatus an integral part of the sealed-beam warning lamp and by using a long-life halogen-cycle type lamp component as the light source within the sealed-beam reflector envelope.

REFERENCES:
patent: 1735572 (1929-11-01), Handlan

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