Rotating signal light

Details Rotating signal light Rotating signal light

1976-06-11

1978-11-07

Hix, L. T.

Illumination

Revolving

F21M 700

Patent

active

041248805

ABSTRACT:
A rotating signal light for emergency vehicles in which a plastic lamp holder is mounted on a vertically disposed rotatable shaft. Upper and lower contact plates are mounted on the top and bottom of the lamp holder. The contact plates have spring contact fingers which engage the terminals on the lamps mounted on the holder. The bottom plate also constitutes a slip ring which is engaged by a brush mounted on the support for the shaft. A pushnut mounted on the top of the drive shaft has a frictional engagement with the upper contact plate for driving the plate and, hence, the lamp holder. The lamp holder has a symmetrical notched configuration allowing two of such holders to be mated, one inverted and rotated 90.degree. relative to the other, so that the holder assembly may mount four lamps.

REFERENCES:
patent: 2595770 (1952-05-01), Crossley et al.
patent: 2984738 (1961-05-01), Belau
patent: 3117302 (1964-01-01), Cardarelli et al.
patent: 3133263 (1964-05-01), Norberg
patent: 3271735 (1966-09-01), Gosswiller
patent: 3784809 (1974-01-01), Smith

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