US1591287A - Headlight antiglare device - Google Patents

Description

July 6 1926.

v v c. K. DAVIS HEADLIGHT ANTIGLARE DEV ICE I Filed Feb. 5. 1926 I Patented July 6.192s.

; UNITED STATES {1,591,281 "PATENT ,IOFFICE.

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' Application filed February a, 192 Serial No. 85,628.

:This invention relates to an anti-glare dev1ce for use with headlights on automobiles and the like. As is well known, the headlights on many cars, especially of the 5 closures in the accompanying drawings and specification. I

,The invention (in a. preferred form). is illustrated in the drawings and hereinafter more fully-described. On the drawings: Fi re 1 is an elevational sectional view of a eadlight with a device embodying the principles of my invention attached thereto,

showing parts in elevation.

Figure 2 is a sectional view taken on line' II--II of Figure 1 with parts in elevation.

Figure 3 is a: perspective view ;of the device. Figure 4 ism top plan view of a stamped form of my device. I v e As shown-on the drawings Y The reference numeral 1 indicates an outer casing; of a headlight of an ordinary type. Sai tral aperture through w ich extends an electrical connection 2, secured to. said casing by flanges 3 surrounding said aperture. An inner parabolic reflector 4 is mounted I ooaxially,with said casin 1 and joined'thereto at its circumferentlally flanged edge 5. A rim 6 of the usual construction is adapted to enclose the flanged edges, of the casing .1 v

and hold a glass or lens 7 in position 'in the to receive a 1m 'to-be at the' f flector. While I light ofthe usual be understood .int of the parabolic reve illustragdiaeawhea ii I -mexpens1ve 1 W1 that the anti-glar'efdevice of easing 1 is rovided with a cen-.-

' face of the headlight, a gasket ring 8 being I I tends through .the reflector and is adapted bulb 10, so positioned as my invention may headlight of this general nature.

be used with any type of My device comprises a series of definitely arranged deflectors adapted to be mounted within the headlight without in any way I altering any part 0 the headlight. I, prefer to form my anti-glare device from sheet metal,-'preferably by stamping the same, as shown in Figure 4. The sheet after-stamp- .ing com rises a main portion forming an upper p atell, parabolic in shape to conform! with the parabolic reflector of the headlight.

ing a central opening 13 and adapted to be folded downwardly at right angles along the dotted line 14. A central portion of the Atthe apex of the parobolic, body portionthere is formed a 'tab 12 hav-.

plate 11 is stamped out on three sides to provide, when bent upwardly along the dotted line- 15, a deflector plate 16. Along the straight edge of the plate 11 near the end thereofthere are formed integral spacing strips l7 adapted to be folded downwardly at right anglesto said plate 11, and alower plate 18 integral with said strips 17- and adapted to be bent along the,lines 19 into a .plosition parallel to and directly beneath t e .plate 11. After being stamped to be attached to a headlight 'as .shown in Flgures 1 and 2. It is mounted over the lamp socket 9-with'said socket 9 extending through the hole 13 in the tab-12. The spac ing strips 17 are adapted to beclamped betweenthe gasket 8 and the glass 7 to hold "the device against displacement. In adjusted position the parallel plates 11 and 18 are 1 out and bent into shape the device is ready j substantially horizontal with a slight down war'd inclination from the rear to the front.

The deflector portion 16 provides an openin 20 which is centered directly above the bul prgjficts.

.95 10 and through which the bulb 1Q partially e rearwardly extending deflector por tion 16 forms with the upwardlg r/struck por-. tion 21 at therear-of the op ing 20 a restricted passage. 22 for the light rays directed toward the upper half of the parabolic reflector 4, The result is that only the cen' tral portion of the upper half of the reflector is available for reflecting the beams of light from the lam 10 thereby greatly reducagi the amount 0 light that would be reflec above-the hor zontal ax s o the and almostentirely preventing the reflection of glare producing light. The deflector 16 together with the plate 11 further eliminate the direct rays of light .that would naturally pass through the upper half'of the lens 7. The lower plate 18 aids materially in reducing the number of rays that would be reflected upwardly from the lower half of the reflector 4. On the other hand. neither the plate 11 nor the plate 18 are sufliciently inclined to reduce the number of horizontal beams thrown from the reflecting surface. If desired the surface of the lates 11 and 18 may be polished to aid in t e downwardly reflection of the light, the other surfaces be ing preferably non-reflective.

In view of the flexible character of the sheet metal from which my device is formed it will be apparent-that the various deflecting surfaces may be readily bent into dif-- ferent positions whereby the most eflicient glare preventing results may be obtained.

I am aware that many changes may be made and numerous details of construction may be varied through a wide range without departing from the principles of this invention, and I therefore do not purpose limiting the patent granted hereon, otherwise than necessitated by the prior art.

I claim as my invention:

1. The comblnation with a headlight having a lamp and a reflector, of a device stamped from sheet metal and adapted to be secured to the base ofsaid lamp, said device comprising a pair of spaced parallel plates positioned above and below said lamp, the

upper of said plates being provided with an opening and a rearwardl curved deflector for said opening to restrict the area available for reflection on the upper portion of said reflector.

2. The combination with a headlight having a lamp and a reflector, of a device adapted to be secured within said headlight, said devicecomprising spaced parallel plates positioned above and below said lamp, the up per of said plates being provided with an pose set forth.

a The combination with aheadlight, of-

a device comprising a pair of spaced plates adapted to be secured within said headlight with the light therebetween, the upper of said plates being provided with an opening above said light and a shield projecting rearwardly above said opening.

4. A device of tlie class described stamped from a single sheet of metal and comprising a plurality of substantially parallel plates, members joining said plates for holding them in spaced relation, fastening means on'one of said plates, and a portion of that plate struck up to form an opening therein,-the portion so struck up forming a ihielld over said opening for the purpose set ort opening and a shield therefor for the pur- 5. In combination with headlight, a device comprising a pair of parallel plates adapted to conform with the inner contour of said headlight, strips joining and: spacing the outer edges of'said plates, means for attaching said device to said headlight with the plates inclined downwardly and forwards ly, the upperof said plates bein provided with an opening and curved s leld "portions formed'at th opening.

6. The combination with a headlight, of

a device comprising a air of plates adapted e front and rear of said In testimony whereof I have hereunto subscribed my name.

CHARLES K. DAVIS. v

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