US1464016A - Headlight device - Google Patents

Description

Aug. 7, 1923. 1,464,016

H. w. SCHWARTZ HEADLIGHT DEVICE Filed Aug; 5, 1921 Patented Aug. 7, 1923.

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UNITED, STATES v 7 1 ,464,016 PATENT oFFicE.

' HERBERT W'. SCHWARTZ, UF CHICAGO, ILLINOIS. 3

HEADLIGHT DEVICE.

To all whom it my'concern:

Be it known that I, .HERBERT W. SCHWARTZ, a citizen .of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Headlight Devices, of which the following is a description.

My invention relates to improvements in head light devices and more particularly to a means for preventing glare due to the rays of light being projected upwardly of the reflector. With my improved device only the rays of light parallel to the principal axis and those reflected downwardly relative thereto are projected alongth'e road way, the others being absorbed or cut oil. The invention has among its further objects the production of a device of the kind described which is simple, convenient, durable, reliable, eflicient, and satisfactory for use wherever found applicable. Many other objects and advantages of the construction herein shown and described will be obvious to thoseskilled in the art from the disclosure herein given.

To this end my invention consists in the novel construction, arrangement and 00111- bination of parts herein shown and described, and more particularly pointed out .in the claims.

In the drawings, wherein like reference characters indicate like or corresponding parts:

Figure 1 is a sectional view through my improved device;

Figure 2 is a front view thereof with the lens and holder removed; and Figure 3 is a sectional view of a modified construction.

In the drawings, wherein l have illustrated two embodiments of my invention in one type, 1 indicates the outer casing or shell of a head light, said shell being adapted to detachably receive a lens holder 2 carrying a lens 3. The shell, lens and holder may be of any suitable size, shape or design, the specific construction as such not formin a part of my invention. llnteriorly of the 5161i 1 is a mirror or reflector 4, said reflector being generally in the form of a concave spherical or parabolic mirror or polished surface. In the particular type shown there is positioned a bushing 5 of insulating material-or the like, bored to receive an electrical conductor. 6, extending through the casing 1 at 7, whereby it may be detachably connected to a suitable coopcrating electrical conductor leadin from any suitable source of energy, suc as a,

generator, storage battery, or the like.

Ordinarily the light rays from a lamp positioned within the reflector at the focus or near it, will be reflected so that a glare will be produced, due to the upwardly directed rays which fluids and is dangerous to persons cog in the opposite direction or toward the light. With my improved device I provide means for restricting the direction of the reflect/ed rays so that substantially none of them are reflected upwardly and hence a glare is not produced. An opaque cover or shield 8 having an annular flange 9 adapted to bear against the annular flange of the reflector 4; is positioned withi the reflector, the lower half thereof being substantially of a contour parallel to the concave surface of the reflector so as to closely fit within and rest thereupon, the upper edges of the lower portion being indicated at 12 and being substantially straight and in a plane cutting the principal axis 27 of the reflector. In the wall of the shield at its bottom may be formed a conduit or channel 11 communicating at one end with the bushing 5 and at its other end with an aperture 13 tormed' in the wall of the cover so that the electrical conductor 6 may be inserted through said bushing and conduit and through said aperture inward lyof the headlight. The upper half of the shield is bent inwardly a slight distance, as at 14:, so as to bear against a portion or the concave surface of the reflector, and thence bent outwardly and downwardly, as at 15, to overhang the reflector and form a visor, the lower edge of the visor is preferably arcuately recessed or cut, as at 16, from side to side and tends to prevent side glare. Secured to the lower portion 10 of the shield is a sleeve 18, arranged to adjustably or slidably receive a hollow bent arm 1920, said arm being adjustably positioned therein and held in place by a set screw 22, or the equivalent. Into the arm 20 is positioned an adjustable or slidable sleeve 21, said sleeve being adjustably held in place by a set screw 23, or the like. The sleeve 21 is adapted to receive a lamp 2%, so that the filament 25 ofthe same is substantially arranged at the principal axis of the reflector. Thus the lamps may be ad usted as desired andheld in any adjusted position. The entire lower portion 8 of the shleld 1s blackened or otherwise suitably treated to have a non-reflecting or a light absorptive surface, so that any rays of light thrown thereon will not be reflected from the surface thereof, but will be absorbed. The visor 15 may or may not be blackened to provide a non-reflecting surface just as desired, for as said visor 15 is made of an opaque material it will cut off all rays of light thrown against its inner surface so that all of the rays of light directed onto the uncovered polished surface of the reflector 1 will be reflected therefrom along lines parallel to the principal axis of the mirror and also along lines lying in vertical planes and directed downwardly of the principal axis, the upper boundary of the rays reflected from the mirror being in the form of a curve corresponding to the arcuate recessed edge 16 of the visor 15. I prefer to opaque the lamp as indicated at 24, so as to prevent the direct rays from being projected out wardly. This opaque may be foil, enamel, or the equivalent, which will reflect any rays onto the mirror or reflector proper.

Any other suitable manner of shielding the mirror so as to make it light absorptive may be provided, as for instance, a standard reflector might be employed and the polished surface of the lower half of the mirror be painted over or darkened with any suitable material. \Vith the last mentioned method, the shield 8 would comprise only the upper half or visor portion of the light-controlling means. The apparatus described may be fitted into any type of lamp, or when the reflector is constructed as just mentioned it may replace the standard equipment. When a reflector is so con structed it may have the light terminal wire brought in at the base of the part 18 and the oflset part 11 omitted. Referring to Figure 3 this illustrates the construction referred to in which the reflector 30 is provided with a visor 31, and non-reflecting surface 32. In this case the wire 33 to the lamp 34 passes through an opening at the base of part 35. The lamp-is preferably opaqued similar to lamp 24 in Figure 1.

The result is the same as with the other construction.

. Having thus described my invention, it is obvious that various immaterial modifications may be made in the same without departing from the spirit of my invention; hence I do not wish to be understood as limiting myself to the exact form, arrangement, construction, and combination of parts herein shown and described, or uses mentioned.

What I claim as new and desire to secure by Letters Patent is:

1. In a head light of the kind described andin combination, a concave reflector, a lamp adjustably positioned therein, means for covering the lower half of said reflector to absorb the rays directed thereon, visor means transversely of said reflector at its upper half from a line within said reflector and extending outwardly and downwardly therefrom, said visor having an arcuate recess in the lower free edge thereof whereby there will be no upwardly directed rays projected beyond the reflector and the light directed outwardly of said reflector will be bounded at its top edge by a down turned arc corresponding to the arcuate recess in the transversely extending visor.

2. In a head light of the kind described and in combination, a concave reflector, a

lamp arranged therein, means for absorbing the rays of light directed onto the lower half of said reflector, and a visor arranged transversely of said reflector at its upper portion from a point within said reflector and extending outwardly and downwardly therefrom, said visor having a recess in the lower free edge thereof whereby there will be no upwardly directed rays of light projected beyond the reflector and the light directed outwardly of the reflector will be bounded at its top edge by a line corresponding to the lower bounding edge of the transversely extending visor.

In testimony whereof, I have hereunto signed my name in the presence of two subscribing witnesses.

HERBERT W. SCHWARTZ.

Witnesses RoY W. HILL, RUTH M. EPHRAIM.

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