Railway light signal

Details Railway light signal Railway light signal

1994-05-12

1995-07-18

Cuchlinski, Jr., William A.

Signals and indicators

Indicators

Visual light signal

2464733, 362268, 362382, B61L 2924, F21V 2100

Patent

active

054331668

ABSTRACT:
A light signal provides fixed focus and the ability to service the device solely from the rear. This light signal comprises a housing having a rear entry for desired maintenance and an immovable front wall, the lens mount containing a lens unit that is removable secured to an inside surface of the immovable front wall of the housing. Each lens mount includes a fixed focusing means having a receptacle for operative receipt of a light means, wherein the fixed focusing means is positioned at the end of the lens mount nearest an inner lens; whereby the focus of the light means is fixed relative to the lens unit.

REFERENCES:
patent: 1453535 (1923-05-01), Wells
patent: 1498184 (1924-06-01), McCarthy
patent: 1640170 (1927-08-01), Wright
patent: 1748913 (1930-02-01), Day
patent: 1876384 (1932-09-01), Arano
patent: 1998678 (1935-04-01), Larson
patent: 3219973 (1965-11-01), Lenz
patent: 3576563 (1971-04-01), Scott et al.

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