US1734081A - Headlight antiglare device - Google Patents

Description

1929- l. s. DRAPER 1,734,081

HEADLIGHT ANTIGLARE DEVICE Filed July 23, 1928 sigma 50mm c9 D/zdyw Patented Nov. 5, 1929 FICE ISAAC S. DRAPER, F SULLIVAN, INDIANA HEADLIGHT ANTIGLARE DEVICE Application filed July 23,

The invention relates to anti-glare devices for automobile headlights and analogous illuminators, and it aims to provide a simple and inexpensive, yet an eificient and reliable article of this character which may be quickly and easlly installed and adjusted to obtain the best results, and will not interfere with replacing bulbs whenever necessary.

With the foregoing in View, the invention resides in the novel subject matter hereinafter described and claimed, description being accomplished by reference to the accompanying drawing.

Fig. 1 is a side elevation partly in section showing the device applied.

Fig. 2 is a side elevation of the anti-glare device separate from the head-light.

Fig. 3 is a vertical sectional view on the correspondingly numbered line of Fig. 2.

In the drawing above briefly described, the preferred details of construction have been illustrated and while these details will be herein specifically explained, it is to be understood that within the scope of the invention as claimed, minor variations may be made.

The device embodies a flat metal disk 5 having a central opening 6 to receive the usual neck 7 of a headlight bulb 8. The front side of this disk is provided with a light-reflecting surface 9, and a plurality of slots 10 are formed through said disk around the opening 6 to expose portions of the reflector 11 behind said disk, providing for the necessary direct forward projection of light rays.

The slots 10 are elongated in directions at right angles to lines radiating from the center of the opening 6.

Integral with the peripheral edge of the disk 5 are a number of circumferentially spaced fingers 12 which are greater in number than the slots 10 and project forwardly to surround the bulb 8, said fingers being of a length to project forwardly beyond the foremost part of the bulb a distance approximating one-third the length of said fingers. The

1928. Serial No. 294,811.

fingers are also diametrically spaced a distance greater than the diameter of the glass 'part of the bulb so as to be spaced in their entirety from the latter. In transverse section, these fingers are straight as seen in Fig. 3. Longitudinally however, they are curved, the rear portions of said fingers being bowed outwardly away from the glass part of the bulb 8 while the front portions of the fingers 12 are enameled or otherwise provided with a dark coating of light-mellowing nature, dark, green enamel being preferably employed. The inner sides 14 of these fingers, however are enameled or otherwise coated with a light color such as white or cream, so. that they do not materially reduce the strength of the light rays, yet will not forciblyreflect such rays with danger of tempoiarilyblinding persons looking toward the 'lig t.

' For holding the device in proper position upon the bulb neck/7, I prefer to use, a light coils'pring l5 soldered or'otherwise secured to the rear side of the disk 9. When the device is applied, this spring is held under compression and it consequently hold's'the disk and fingersv in proper position and prevents rattling of, them;

When the device is properly applied and adjusted, it effectively prevents danger of glare .from headlights and analogous illuminators, yet suflicient illumination is given for safe driving. The coloring of the inner and outer sides of the fingers 12 is of importance, the light 'color'on the inside and the dark green on the outside, serving to effectively break the glare of the light with much betgreater than the usual glass than the ter results than when using any other 001- ors, all of which have been tried. The reflecting surface'9, such as nickel-plating, together with the portions of the headlight reflector exposed through the slots 10 serve to direct reflected light rays Where needed and yet avoid dangerous glare, co-operating with the other features of construction in producing a highly desirable and eflicient device, regardless of its simplicity and ease of application. Any time it is necessary to install a new bulb, the anti-glare device will not interfere to any extent with such installation, and as above stated, this device may be adjusted by bending the fingers 12 so as to obtain the best results, according to the reflectors shape and the size and shape of the headlight bulb.

I claim 1. In combination with a headlight having a reflector and a bulb; a disk having a central opening through which the usual neck of the bulb passes, said disk having a reflecting surface at its front and being provided also with openings exposing portions of the reflector behind said disk, means for holding said vdisk upon the bulb neck, and a plurality of circumferentially spaced reflector shielding fingers integral with the peripheral edge of the disk and pro'ecting forwardly therefrom around the bul said fingers being of a length 1 ortion of the bulb and projecting forwardly beyond the foremost part of the latter, said fingers being diametrically spaced adistance greater diameter of said glass portion of the bulb and beinghence outwardly spaced in their entiretyfrom said glass portion, the outer sides of said fingers being provided with a dark light-mellowin coating their rear portions bowed outwardly and having their front portions similarly bowed inwardly.

In testimony whereof I have hereunto af-- fixed my signature.

ISAAC S. DRAPER.

in the inner sides of said fin ers avin x a coating of light color which will not materially reduce the light volume but will prevent reflection of glaring rays.

2. In combination with a headlight having a reflector and a bulb; a flat disk having a central opening through which the usual neck of the bulb'passes, said disk having a rey,

fleeting surface at its front and being proof radial lines, said slots exposing portions of the reflector behind said disk, means for holding said disk upon the'bulb neck, and a plurality of circumferentially spaced reflector shielding-fingers greater in number 1 'forwardly beyond the foremost part of the latter, said fingers being diametrically spaced a distance greaterthan the diameter of said glass portion of the bulb and. being hence outwardly spaced in their entirety-from said 'vided also with slots elongated transversely

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