US 1138712 A
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Description (OCR text may contain errors)
J. E. WRIGHT.
APPLICATION HLED AUG-7| I914.
ATTORNEY UN rr 'ITES PATENT OF ICE.
I JAMES E. WRIGHT, F BAY CITY, MICHIGAN.
Specification of Letters Patent.
Patented May 11, 1915.
' Application filed August 7, 1914:- Serial No. 855,628.
To all whomit may concern Be it known that I, JAMES E. WRIGHT, a citizen of the United States, residing at Bay City, in the county-"of Bay and State of Michigan, have invented certain newand useful Improvements in Non-Glaring Headlights; and I do herebydeclare the following-to be a full, clear, and exact description of the invention, such as will enable others skilled in the' art to which it appertains to make and use the same.
This invention relates to headlights and pertains more particularly to headlights such as are used on automobiles, interurban' cars 1a and other vehicles.
The purpose of the invention is to produce a headlight of simple construction that will throw a beam of light sufficiently far ahead, but that will prevent the glare produced by ,headlights of ordinary construction, from which the light is'usually thrown upwardly as well as laterally and downwardly. Such lights throw glaring rays into the eyes ofv pedestrians and travelers in passing vehi-- cles, and it is to provide a headlight from which this source of difficulty has been eliminated that my present headlight has been devised.
In the drawings, Figure 1 is a vertical 80 longitudinal section of a headlight embodying my improvement. Fig. 2 is a horizontal section on the line 2-2 of Fig. 1. Fig. 3 is a front view.
As is clearly either a gas lamp, an incandescent lamp, or
an arc lamp. I p
The lamp is mounted at the small or rear end of a metal hood 2.. This hood is prefer- 40 ably circular, or nearly so, incross section,
but its top 3 is preferably arranged with its axis horizontal, while its bottom 4 'is inclined downwardly. The rear end'5 of the hoodis so shaped as to form a cavity in which the lampl is received, the lamp being so located with reference to the top and bottom of the hood that rays will not be projected upwardly.
shown in the drawings, the 4 -35 device consistsof a lamp 1, which may be It will be seen that the rays of the lamp will flare out in three directions, downward, to ,the right and to the left.
Theflaring bottom 4 is made nonreflecting, as bycovering with lamp black, or any other suitable means, thereby preventing the rays from the lamp being reflected upwardly from the inclined bottom 4.
Back of the lamp is a curved reflector 6 I so shaped that the rays reflected by it will not be projected upwardly and out of the V hood, but will onlybe projected against the reflecting top 3, from which they are deflected downwardly, or else will be thrown straight ahead.
By the means above described, I have produced a headlight that will throw a sufficiently bright beam straight ahead and will sufflciently diffuse to the right and left and ,will also diffuse downwardly, but no strong rays of light canbe projected upward above the level of the top 3, thereby reducing the liability Having thus described my invention, what I claim and desire to secure by Letters Patent is:
1. In a headlight, the combination with a of throwing a glaring light into .the eyes of persons ahead.
I source of light and a suitable reflector back of said light, of a curved hood," the upper part of which is disposedwith its axis substantially horizontal, the upper part of said hood lying in approximately the horizontal small end of-said hood substantially in the plane of said top surface, the bottom surface of said hood being n'on-reflecting, for
the purposes set forth.
3. In a headlight, the combination of a reflecting hood, the upper part of which is In testimony whereof, I aflix my signadisposed with its axis substantially horizonture in presence of two Witnesses.
tal, said hood bein formed with flarin side and bottom surfa es, a source of lig t' 10- 1 S, WRIGHT '5 cated at the small end of said hood, the Witnesses:
lower surface of the hood being non-reflect- NELLIE M. ANGUS,
ing for the purposes set forth. V 1 (FRANK- L. MAnnNDALE.