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US Pat. 2607838

WARNING LIGHT

by Thomas E. McDowell [assigned to The Pyle National Company]
Filed: March 3, 1949; Serial No. 79,443
Patented: Aug. 19, 1952

Light unit consists of: a fixed light source 34, motor 38 driven reflector 40.

Angularly displaced parabolic reflector 40 positioned to define oscillatory path whenever the reflector unit is gyrated relative to the light source via the motor.

Moveable color screen unit 29 moved in between the light source and the reflector.

Screen is a semi-spherical element of glass or plastic.

Movement of screen unit 29 is via a 2 directional motor 33 using limit type switches. Energizing motor 33 can bring the screen unit between the light source and the relector or can bring the screen unit on a 180° setting from this setting (or some other desired setting). The result being that the light beam can be clear (white) or colored (red).