US1904574A - Automobile headlight - Google Patents

Description

Agri! 1s, 1933.

s. w. H. TURNER 1,904,574

AUTDMOBILE HEADLIGHT' Filed may 29. 1931' WMM-QMS T Z INVENTQR J4 51am ummm T. P nd 44 ATTORNEY;

Imaar asa-1a, was

UNITED STATES Y SIMN WQ H. TURNER, I NEW YUBK, N. Y.

AUTOIOBIE .HEADLIGHT Application led Iltuyv 89,

This invention relatesto lareless hea-dlights generally, and particu arly to headlights for automobiles.

Glare is caused by upwardly projectinglight rays which strike the eyes of the apmy invention would otherwise have diilculty' preaching driver. Various shields and translucent shades for headlights'v have been devised but practically all either allow some glare or so restrict the light that they fail in their urpose. Y

There ore, I have devised a vlareless adjustable .headli ht characterized, b the fact that a tilted re ector'for the bulb irects the light downwardly through a diiusing plate, and that some distance in front of the diius'- ing plate there is placed a vertical shield, the lower edge of which is not substantially above the lower edge of the plate. The whole assembly is contained in a metal casing. By using a powerful bulb, a Vbrilliant tlood of light results directly in front of the vehicle and certain beams are cast a ood distance in front thereof. n l may make t e shield partly translucent because a driver approachin a car equipped with a headlight embodymg in placing the vehicle, inasmuch as the emitted light rays, almost without exception', are

directed downwardly against the ground,'

and no light rays of an appreciable intensity are directed upwar y.

My invention can be readily comprehended from the accompanying drawing which is for the purposes of illustration only, it bein understood that my invention 1s capab e of many embodiments and is not to be restricted solely to the form shown.

In the drawin Fig. 1 is a si e elevation of a car with a headlight embodying my invention; Fig. 2 is a lvertical cross section of the headlight; Fig.

` 3 is a front view of the headlight; Fig. 4

is a plan view looking upwardly on the line 4 4 of Fig. 2; Fig. Epis a plan view taken on line 5 5 of F1g. 2; Fig. 6 is a section showing a slide for adjustably positioning a reflector and Fig. 7 is a section showing the positioning means for the diiusing plate.

.A headlight casing 10 is formed with a main housing 12 and the reflector housing 1931. serial No. $0,870.

14 which latter is slightly tilted downwardly. Housings 12 and 14 are preferably made integral. An inner casing 16 has preferably a parabolic relector 18spot welded in it, and is positioned within the housing 14 by slides 20, which are constructed to rock about pivots 21. grooves 22' mounted upon housing 14. A plate 24 with a plurality7 of holes 26 is also mounted upon housing 14. A wing screw 28 projects through slot 30 in casing 16 and runs through a spring 32 and may be positioned in any of the holes 26. Tightening or loosen. ing t e screw l28 rocks the casing about the pivots 21. Therefore, reflector 18 may be adjusted both horizontally and vertically by varying the-positioning of slides 20 and the screw 28.

Slides 2O slide lengthwise in A diffusing plate 34, mounted in a metal- .while permitting some light rays to pass through directly, will bend the greater proportion of the light rays either up or down.

Mounted in the opening 39 of main housing'12 and a substantial distance in front of plate 34, is a transparent pane of glass 40 held by rim 42 which latter is removably positioned by screws 44.

To prevent the upwardly vdirected rays from escaping from the housing through the glass 402. shield 46 is positioned so that it runs from the top of glass 40 downwardly, preferably in a vertical plane as shown. It will be noted that the lower edge of the shield 46 is curvilinear and conforms substantially in shape with and is only slightly above the lower edge of diiusing-plate 34. If desired, the shield may be made in two parts` as shown; a metal strip such as 48 running from side to side of rim 42, and a translucent shade as at 50 which may for example vbe made of yellow tinted mica.

' If desired, a powerful auxiliary light such as 52 may be positioned in the lower portion ot .the vehicle,

I of housing l2, as shown, and this may he mounted upon a pivot such as 53 so that the light'can he cast to onefside of the vehicle.

v The details of such an auxiliary light formi no part oi the present invention and so are not described vfully.

(Casing i6 is made readily available for adjustment hy hinged door 54,` which latter may he heldin place hy such means as wing,1 nut 56. By releasing wing screw 28, the entire reector and plate assembly can he withdrawn through door 54.

The interior of the lower portion of. the housing l2 should loe colored with a light ehsorhent color, such as black so that no rays will he" redected upwardly and the upper portion may he made highly reflective as at @il so that certain rays of light will he retlected downwardly in iront of they vehicle.

' neuneu reflective on its upper portion-and light absorptive on its lower portion.

ln testimony that l claim the foregoing, l havehereunto set my hand this 28th day of May, llll.

SlMOhl W1 H. TURNER,

53@ Plhe headlight is mounted yand wired in the usual manner9 and this is, therefore, not illustrated. For general operation the casing l@ is adjusted vertically and horizontally so that certain rays such as 62 are cast in front ol' thecar parallel to the horizontal axis of the 'reileotorn W hen the casing and the reflector are tilted slightly downwardly, rays 62 are projected eta substantial distance in front of the car. @ther rays such as 64.- will he refractedesthey pass through plate 3l so that they strike the highly reective surface at and are projecteddownwardly in iront `With a powerful hull), a strong dood oi light results in front of the car. @ther rays such as 66 illuminate in on attractive manner the translucent shade dll. Such' rays as 58 are relrected so that they will progect a goed distance in iront oi the vehicle, s f v llt is here important to state that the lower edge of shield 48 may hepositioned slightly ahovethe lower edge of plate 3l because the direct rays such as 70 are heyond the critical angle oi upward refraction and the few 'redective rays such as 'E72' capable by their pon sition ot passing upwardly past shield t8 are negligible in quantity and eect. Also alone, the 'angle of the casing i6 as contrasted with the housing l2 can be decreased so that there is no upwardly projecting light whatsoever.

Whatllclaimis: y Y

@E l. ln combination, a casing for aheadlight having a substantial partei the upper front portionthereoi covered hy a shield adapted largely to interrupt the passage of light rays, a second casing within the first casing so @o positioned as to he substantially covered by said shield when viewed from/a point horizontally in iront of the first casing, a down- Wardly tilted reflector and a Llight source in said second casing, and aL plate mounted at the front of' said second casing a substanii thev headlight is used for city driving A ll@ ico

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