US1350811A - jones - Google Patents

Description

J. D. JONES.

LIGHT 'DEFLECTOR FOR LAMPS.

APPLICATION FILED NOV. 8, I919.

- Patented Aug. 24, 1920.

UNITED STATES JAY D. JONES, OFNEW YORK, 1v. Y.

LIGHT-DEFLECTOB, FOR LAT/IFS.

Specification of Letters Patent. Patented Aug, 241, 1920.

Application filed November 8, 1919. Serial No. 336,714.

To all "whom/5t may concern 7 Be it known that I, JAY D. JoNns, a citizen of the United States of America, residing at New York city, county and State of York, have invented certain new and useful Improvements in Light-Deflectors for Lamps, of which the following is a full, clear, and exact description.

This invention relates to improvements in deflectors for electric lights, and while my in'lprovement relates more particularly to means to reduce the glare of automobile head-lights, it may be'used in connection with any electric light having reflecting means which produces a glare. To obtain the result sought, I provide a hood or casing arranged to encompass a lens having deflecting means within same located in the path of light. In this instance, the deflect ing means consists of a plurality of angularly disposed plates or vanes arranged for adjustment in order that they can be positioned to suit conditions.

I will now proceed to describe my invention. in detail, the novel features of which will be pointed out in the claims, reference being had to the accompanying drawing, wherein Figure 1 is a sectional View of a headlight device having my improvement attached thereto;

Fig. 2 is a front view thereof;

Fig. 3 is an enlarged sectional detail view, the section being taken on a line 3-3 in Fig. 1;

Fig. 4 is a similar view, the section being taken on a line 1-4 in Fig. 1; and

Fig. 5 is a fragmentary perspective detail view ofone of the elements of my device.

As herein embodied my invention consists of a hood or casing 6 arranged for attachment to a headlight casing 7 said hood having a flange 8 to be engaged by the bezel ring 9 of the casing 7 In this instance the flange 8 is located between the bezel-ring 9 andv lens 10 of the headlight. The usual reflector is indicated by 11 and a bulb by 12. Within the hood or casing 6 I mount a plurality of plates or vanes 13. 14 and 15 preferably positioned at an angle with re spect to the axis of the hood or casing 6. The vanes 13. 14 and 15 are slidably retained by guides 16. The guides are made up of angle-members 17 and 18. secured to a plate 19, said angle-members being spaced apart to provide a channel 20 for the plates to slide in. The plates will be tightly yet slidably fitted in said channels to prevent same from being jarred out of position. The guides are preferably pivotallyconnected to the hood or casing 6, and for this reason each guide is provided with a pivotpin 21 passing through an opening in the hood or casing. Adjacent the forward end of each guide, I mount a threaded stud 22 which passes through an arcuate slot 23 in the hood or casing 6, a wing-nut 23 being provided to hold the guides in adjusted positions. As the guides are pivoted at one end, the vanes can be adjusted toward or away from the axis of the hood or casing 6. As the vanes are slidable in the guides, they can be adjusted toward or away from the deflector 11. The angular position of the vanes will cast the rays of light down wardly upon the road; hence the driver of an approaching vehicle or a pedestrian will not be annoyed by the glare of the headlight. The distance at which the rays of light will be cast upon the road, ahead of the vehicle, can be determined or altered by adjusting the angular position of the vanes. The upwardly directed rays can be screened to thedesired extent by adjusting the vanes longitudinally of the guides 16. By means of my improved deflector, it is possible to so position the vanes 13 as to reduce the glare of headlights to a minimum, for the reason that said vanes cast the rays of light downwardly upon the road, withputil materially reducing the efficiency of the To cast suflicient rays sidewise to illuminate the road to the right and left of the vehicle, I reducethe depth of the casing below the axis thereof, as indicated at 24:. In other words. the hood or casing 6 is of different depths, the upper portion being longer than the lower portion for the purpose of permitting rays to be cast sidewise through the portion 25 of the hood.

It will also be noted that the vane 15 is considerably shorter, in the direction of the axis of the hood, than the other vanes. The comparatively great length of the other vanes, particularly the central one 14:, enables a sufiicient dimming without shutting off too much light.

The casing is also provided with a light intercepting plate 26 at the topthereof, to

screen the rays above vane 13, and a plate 27 at the bottom thereof, having an opening 28, to partly screen the rays passing below the lower vane 15.

Having described my invention, What I claim is 1. A device of the character described comprising, a hood fitted to be secured to a lamp in front of the lens, said hood being cut away at its lower sides and bottom, and a plurality of dimming vanes mounted'in the hood, one of them being located sub stantially centrally in the hood and an other one near the bottom of the hood, the last named vane being shorter thanthe cen tral one.

2. A device of the character described comprising, a hood fitted to be secured to a lamp in front of the lens, said hood being cut away at its lower sides and bottom, a plurality of dimming vanes mounted in the hood, one of them being located substantially centrally in the hood and another one near the bottom of the hood, the last named vane being shorter than the central one,

hood, one of them being located substan V tially centrally in the hood and another one near the bottom of the hood, the last named vane being shorter than the central one, means located at the top of the hood for shutting ofi the rays from the upper part of the lamp, and means located at the bottom of the hood for partially shutting off the rays from that part of the lamp.

Signed at New York city, N. Y., this 6th day of November, 1919.

JAY D. JONES. Witnesses EDWARD A. JARVIS, Maomon BLOCK. Y

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