US1493740A - Headlight - Google Patents

Description

C. H. DAUM HEADLIGHT Fil'ed Feb. 4 1922 IN VEI7 far CHALES /1. 0 UN 1 A f fa NE emme CEIAELES H. DAH, 0F RWEESIDE, CALIFORNIA.

HEADLIGHT.

Application filed February 4, 1922.

'T0 aZl whom z't may concem.

Be it known the; I, CHARLES H. DAUM, a citizen of the United States, residing ai: Riverside, in che eounty of Riverside and State of California, have invented a new and useful Headlight, of which the following is a specification.

This invention relates te headlights and is particularly directed te headlights adepted for use on automobiles and other vehicles.

An object of the invention is to provide a device of -this character whereby the light from the lamp or source of ligbt Will be effectively shielded from the eyes of pedestrians and other drivers and which Will at the same time efi'ectively light the road.

Another object is bo provide a, device whereby the light reaehing the eyes of pedestrians or other' drivers: will be rendered non laring by the absorption of certain of the ight rays emanating from 'the light source.

A further object is to provide a, device by which the line of demarkation between the nonglaring light rays end those of maximum brightness is rendered more noticeable.

Various ot-her objects end advanteges will be more fully apparent from the following description of the accompanying drawings which form a part of this disclosure and which illustrate a preferred form of embodiment of the invention.

Of the drawings:

Fig. 1 is a vertice! eentral section through a, headlight embodying che features of my invention.

Fig. 2 is a transv:erse seetion on line 2-2, of Fig. 1.

Fig. 3 is a section similar to Fig'. 1 showing a modified form of my invention, end

Fig. 4 is a transverse seotion on line 4--4, of Fig. 3.

In p'racticing my invention I provide a translucent plate preferebly of dark color which is dis osed ebove -t-he source ef light and in a, su stantially hor-izontel posibion. In praptiee I prefer to provide two sueh plates, one above the light and one below l.

In the structure shown in Figs. 1 end 2., 1 indicates the lamp housing supporting e suitable lamp secket f0i receiving i:he iemp bulb 3 end having a periphexei ehouider i against Which the flange 5 of ibe reflee ter 6 seets, the heusing et said shouder bevmez Serial No. 584,154.

one or more relatively spaeed lugs 7 With which companion notches in the flange of the reflector mesh to prevent the reflectoi turning.

-The flange 5 has a circular groove to receive a packing cord 8 and the frnt of the lamp is closed by a transparent glass disc 9, a. rim member 10 holding the disc 9 against the cord 8 in the groove in the flange 5 of the refleotor and in turn holding the flange-clamped against the shoulder 4 of the housing.

The reflector 6 Whieh is preferably parabolic has a, central opening throu h which the lamp soeket 2 extends, end a ve end below the lamp socket end bulb the reflector 6 has means for holding colored plates; for this purpose it may be forme-d toprovide relatively spaced horizontal grooves 11 extending from one side edge to che other of the refleotor.

Seated in said grooves are horizontally disposed translucent glass platesor partitions 12 of relatively dark color, as for instance dark blue'or green, the plates being retained within their respective grooves by cement or other packing 13. These plates extend from the reflector surface outwardly to a piane substantially flush with the outer edge of the reflector end form an interneldiate chamber containing the source of ig1t 3.

With this construction, the greater portion .of the direct ray-s from the bulb 3 end ell of the rays reflected from that portion of the reflector between the two partition plates 12 are projected directly forward with their full power through the transparent front glass 9, while all the light that passes tbrough the colored partit1ons 12 is subjected to an absorption of all the rays excepting those of a color corresponding to the color of the glass of which the partitions are formed. It Will therefore be understood that all the light projected from. the lamp by refraction pessing through the seid partitions, end directly out, and all ligbt pass1ng through said partitions and then reflected by thoseportions of the reflector above the upper partition or below the lower partition, Will be rendered nonglaring by ebsorption.

Further by reason of the straight horizonta front edges of the partitions the line of demarkation between such eeo'ed nongiaring iigh rays end bhe White iigh; 01

greater intensity Will be rendered more notceable.

The form of device shown in Egs. 3 and 4 constitutes a removable reflector which -is adapted for nserton into headlghts of standard oonstructon wthout alteration of such headlights, and comprises a, reflector unit 15 formed of glass and conforming approximately to the eneral oircular concave shape of the or inaryheadlight refiector 16 with Which the headlight is initially equipped. Such glass reflector unit 15 has a perpheral flange 17 Which engages the packing cord 8 and has the horizontal translucent colored partitions 12 formed integral therewith, sa1d partitions being of the sanno shape and having the same functon as the previously described. artitions 12. The glass disc 9 engages a. pac1ing ring 18 placed bctween it and the flange 17 of the reflector 15 and the several parts are retaned in place by the rm member 10.

The surface 19 between the two partitons 12 is silvered or otherwise rendered highly reflective and the surfacs 20 outwardly from said partitions ma'y 01. may not be silvered, as desired,

While I have illustrated and described my preferred forms of embodiment of the in vention, it is to be understood that the inventior'x is not to be limited in this regard as it is susceptible of embodiment in varous other forrns a11 coming within the scope of the following claims.

I claim:

1. In a headlight, the combination of a refiector, a source of light centrally dsposed in front of the reflector, the reflector having horzontal grooves on opp0site sides of said lght source, and translucent glass plates ot' relatively dark color posit1oned in the grooves.

2. In a headlight, che combination of a reflector, a source of light disposed centrally in front of the reflector, a pair of translucent plates of relatively dark color disposed respectively on opposte sides of the lght and extending outwardly so that lght rays passing upwardly and downwardly from the light pass through said plates, and means on the r.eflector for holding the platee; in positon.

3. In a headlight, the combinaton of a reflector, a source of light disposed centrally in front of the reflector, said reflector havng a, groove formed therein in a substantially horizontal plano above the position of the light, and a translucent plate of relatively da1k color having its inner edge received in said groove so that the groove holds the translucent plate in osition, said plate extendin outwardly aove the lght so that the lig t rays passing upwardly from the light pass through said plate and are reflected outwardly thereafter by said reflector.

Signed at Riverside, Calif., this 25 day of January, 1922.

CHARLES H. DAUM.

Witnesses:

LYMAN EVANS, CLARENCE B. Fon-3m.

Images