US1466354A - Antiglare device for automobile headlights - Google Patents

Description

2%, www@ H. R. DRURY ANTIGLARE DEVICE FOR AUTOMOBILE HEADLGHTS Filed Sent. 7. w20

Fatented Aug. 28, i923..

aeeeeee HERBERT R. DRURY, F WILLOUGHBY, OHIO.

Anamnese nnvrcn ron. AUTOMOBILE nnenmenrs.

Application filed September To all whom t may concern.'

Be it known Ythat I, HERBERT R. DRURY, a citizen of the United States, residing at Willoughby, in the county of Lake and State of Ohio, have invented a certain new and useful' Improvement in Antigl'are Devices for Automobile Headlights, of which the following is a full, clear, and exact description, reference being had to the accomlo panying drawings.

This invention-relates to. an anti-glare device for automobile headlights and has for its object the production of a simple and inexpensive device of thishcharacter that may be very conveniently inserted in headlights 0f the conventional'type; that is inconspicuous when occupying its position Within the headlight; and that very effectually cuts out or dims those rays which blind and confuse drivers of approaching vehicles or -pedestrians, While preserving the full brilliancy of the rays that are properly projected by the parabolic reflector upon the roadway a considerable distance in advance of the automobile, at the same time permitting the direct rays of the lamp to fall upon the road in the limmediate foreground.

These, and other objects which will become apparent as this description p-roceeds, are attained in the embodiment of my invention illustrated in the accompanying drawing wherein Fig. 1 is a. front elevation of the device; Fi 2, a section on the line 2-2 of Fig. l; 'ig. 3 a vertical section, more or less diagrammatic, through a headlight equipped with my improved anti-glare device, the section of lthe latter being the same as .in Fig. 2 but showingthe .dimmer in operative position; and F ig.4 a perspective View' of the device showing the form which it assumes when in the headlight.

The device may be constructed of any suitable material, at the present time it being my preference'to employ fiber board, coated with aluminum paint for vreasons which I shall presently explain. The device is circular in form to correspond to the outline of the reflector, and its interior is cut away to leave a segmental blind 1 that is connected through arcuate arms 2 with.y the extreme lower portion-of a substantially 7, 1920. Serial No. 408,432:

sector shaped wing 3 having a notch 4 at lts upper end. The wing 3, because of its function, may be referred to as the dimmer.

N ormally, as when not in a headlight, the device 1s flat, `as indicated in the sectional view of Fig. 2. This feature makes it exceedingly easy to pack, ship and store the devices. When the device occupies its position within a headlight 5, its periphery 1s clamped between the opposed edger portions of the reflector 6 and lens 7; and the dimmer 3 is pressed into the lowery portion of the reflector,'assuming the general contour thereof, and its notch 4 is engaged bece neath `the lamp support. l A

From the diagram of Fig. 3 it will be readily seen that the blind l obliterates the reflected rays from the upper portion of the parabolic reflector 6, while thefdimmer 3 70 intercepts the direct 'rays of the lamp that wouldotherwisefall upon and be projected by thelower half of the reflector. By coating the device with aluminum paint, as hereinbefore stated, the dimmer 3 will serve as 7e a reflector of low order to throw ofi subdued rays, Iand by reason of its aluminum color, the device is less conspicuous in the headlight than it otherwise would be as it offers little contrast to thesilver color of the reflector.

Having thus described what I claim is l t 1. An anti-glare device for automobile headlights consisting of a. circular member ee adapted to have its peripheral portionl clamped between the opposed edge portions of the reflector and lens and incorporating a segmental blind, forobliterating the rays reflected by the upper portion of the re-` w flector and a dimmer connected by arcuate stri ps to theends of the blind and designed to be fitted within the lower portion ofthe reflector and engaged beneath the lamp support in a position to intercept the direct es rays from the lamp which! are projected toward the lower portion of the reector.

2. An anti-glare device for automobile headlights constructed of fiber board and incorporating a segmental blind and a sub- 1w my invention, .f

stantially sector-shaped4 dimmer, and arcu ate arms concentric with the arc of the blind end connecting the ends of the blind with the lower portion of the dimmer, said arms being adapted to be clamped between the` opposed edge portions of the reflector and 5 lens to hold said device in position with the sector-shaped dimmer within the lower portion of the reflector in 'e position to in- HERBERT R. DRURY.

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