US1700760A - Headlight - Google Patents

Description

Feb. 5, 1 929."

W. R. BREWER HEADLIGHT Filed NOV. 19, 1927 gmiwntoz Patented Feb. 5,1929.

I UNITED WILLIAM R. nnnwmaor DULUTH, mmnssozrn.

I HEADLIGHT.

Application filed November 19, 1927. Serial No. 234,426.

This invention relates to headlights particularly adapted for use on automobiles,'though obviously may be useful when used upon ves: sels, other moving bodies, or as a stationary 6 light when the novel functioning of same is desired. I

The principal object sought in my present invention is that of a glareless headlight and one in which the major portion of illuminosity is directed downwardly therefrom when desired.

Other objects and advantages of the invention will appear in the further-description thereof. i

The drawing accompanying this application and forming part thereof is a central vertical section throu h one of my improved headlights, which in its preferred. form includes the projectile shaped casing 1 mounted upon any suitable standard indicated at 2 which in this instance is hollow and externally screw threaded for engagement with the suitable support as indicated at 3. Upon the outer circumferential edge of the casing '1 is permanently mounted a reinforcing ring 4 for holding engagement with the combined reflector insert which will be described later.

The major lens 5 abuts a ainst the outer face of the reflector unit an is held in position by the hollow annular stop 6 which snugly fits within the ring 4, one circumferential edge of which is provided with one or more tits or lugs 7 which register within suitable holes in the surface of'the ring 4 when the stop is thus inserted prior to the lower portion being forced inwardly where it is securely held by the screw pin 8. The form of lens here shown is one having an outwardly projecting concavoconvex,circular central portion indicated at 9, about which any form of light diffusing areas may be made such as indicated at '10, except that directl above the central circular portion is a relatively smaller circular portion indicated at 11 which is well frosted upon the inner face thereof and occurring directly in front of the lamp 12 which is mounted within the major reflector 13 of the insert unit. This reflector is provided with an axial opening 50 indicated at 14 which registers with a similar opening 15 in a like but smaller inverted reflector 16, the outer peri heral-fextreinity of which isflanged as at '1? flanged portion 18 of the more conically sha ed reflector 19 which surrounds the axially isposed lamp 20. This lamp is mounted and bolted to theupon a socket 21 which is-slidably insertable within the neck 22 of the reflector .19 and has fixed thereto the L-shaped lug 23 ,which is screw threadedly attached to the bolt 24.

around which is mounted the expansive helical spring 25 so that by external adjustment ofrthe bolt 24; the lamp socket 21- may be k 18, adjacent its innermost peripheral edge, is

mounted asecond orminor concavoconvex lens 26, the annular stop for retainin same being indicated at 27 and bolted to t e flange 18 as at 28. p, This combination of reflectors 19 and 16, and the lens 26, results in the compounding or concentrating of the light from the lamp 20 through the axial opening 14-15 in the backs of the reflectors 13 and 16 so that a concentrated central axial shaft of light may be directed from the headlight, it, of

course, being somewhat diffused by the lens 5.-

This lamp'20 is preferably of from twentyone to thirty-two candle-power, which also applies to the lam 12; however this latter I prefer to have 0 the high-low type, say from four to twenty-one or thirty-two candle-power, so that when the headlight is used on dark roads or streets, both lamps may be operated simultaneously, giving the strong-' est possible luminosity, while, when driving on a better lighted thoroughfare, or when otherwise desired, the axial lamp 20 may be turned off and only the lamp 12 used and that either high or low-as desired, and in which event the frosted portion 11 of the lens 5 thor ou hly prevents against objectionable glare.

uitable wiring for the various lamps is illustrated at 29 and 30, they leading through the hollow standard 2 to any convenient source of supply. y L

Having thus described my invention, what I claim and desire to secure by Letters Patent, is: y

A headlight of the class described comprising an acorn shaped casing, a lam wlth n the apex of the casing, areflector a out said lamp terminating in a disc the full slze of the interior of the casin alens carried upon the disc, an inverted re ector attached to the disc externally of the lens and having a com aratively large central opening therethroug an oppositely disposed larger reflector attached ond lens having an outwardly projectin conback to back with the inverted reflector, a cavo convex central portion above whic and 10 radially disposed lamp dependin from the in front of the last mentioned lamp it is uppermost portion of the larger re ector, said provided with light diffusing means, and larger reflector also terminating in a disc like means for holding the parts in assembled re rim filling the casing at its peripheral edge, lation.

I a lens installed agalnst the circumferential In testimony whereof I afiix my signature.

disc-like rim of the larger reflector, said sec- I WILLIAM R. BREWER.

Images