US1357775A - Headlight for automobiles - Google Patents

Description

H. F. HAMMOND. HEADLIGHT FOR AUTOMOBILES.

APPLICATION FILED MAR. 30.1918- RENEWED APR. 30. 1920.

Patented Nov. 2, 1920.

INVENTOR A TTORNEYS 1 the reflector.

UNITED STATES PATENT OFFICE.

HEADLIGHT FOR AUTOMOBILES.

Specification of Letters Patent.

Patented Nov. 2,1920.

Application filed March 30, 1918, Serial No. 225,663. Renewed "April 30, 1920. Serial No. 377,971.

To all whom it may concern.

Be it known that I, HARRY F. HAMMOND, a citizen of the United States, and a resident of South S'liaftsbury, inthe county of Bennington and State of Vermont, have invented a new and Improved Headlight for Automobiles, of which the following is a full, clear, and exact description.

This invention relates to headlights for automobiles and other vehicles, and it has for its general objects to improve the construction whereby a strong, bright light is provided for near illumination of the roadway while a comparatively soft or mellow light is thrown forwardly for distant illumination without being objectionable to the occupants of other vehicles approaching ahead 7 or to pedestrians.

A more specific object of the invention-is the employment of a pair of incandescent lamps arranged within the reflector of the headlight, with a novel arrangement of opaque partition between the lamps so arranged as to produce the double lighting effect above referred to, the partition having a bright surface, if desired, to act as a secondary reflector.

With' Such objects in view, and others which will appear as the description proceeds, the invention comprises various novel features of construction and arrangement of parts which will be set forth with particularity in the following description and claims appended hereto.

In the accompanying drawing, which illustrates one embodiment of the invention and wherein similar characters of reference in-' dicate correspondlng parts n all the views,

.of the partition.

Referring to the drawing, 1 designates the shell or body-of the headlight, 2 the glass, 8 the holding rim of the glass and 4 Arranged within the reflector are .two incandescent lamps 5 and 6, the former being located in the focal axis of the reflector and the latter being arranged at a higher point, Between these lamps is a metal or other partition 7, which is shaped v to fit the curvature of the reflector, and the curved margin 8 of the partition is preferably covered with afabric edge 9 to prevent scarring of the reflector and rattling. On the front corners of the partition are lugs 10 WlllOh clamp between the rim 11 of the reflector and the glass or lens 2. v The partlt on is inclined downwardly and forwardly from a point above the focal axis, and its front straight edge lies immediately at the plate 2 in a position below the focal axis, so that the upwardly directed rays of light from the lower lamp are blanketed and only downwardly directed rays'are emitted from the headlight to illuminate the surface of the roadway immediately in front of the car. All of the rays from the upper lamp are utilized for illuminating purposes, since the partition has no blanketing effect thereon, but as this lamp is located out of the ful enough to be annoying to the sight of occupants of other vehicles or to pedestrians. The position and angle of the partition will vary according to the depth of the focal axis of the reflector and to the curvature thereof. The partition may have polished surfaces so that the reflecting power can be utilized.

From the foregoing description taken in connection with the accompanying drawing, the advantages of the construction and method of operation will be readily understood by those skilled in the art to which the invention appertains, and while Ivhave described the principle of operation, together with the device which I now consider to be the best embodiment thereof, I desire to have it understood that the device shown is merely illustrative and that such changes may be made when desired as fall within the scope of the appended claims.

Having thus described my invention, I claim as new and desire to secure by L,et ters'Patent:

l. A headlight for automobiles or the like, comprising a parabolic reflector, a lamp arranged in the focal center of the parabolic reflector, an opaque partition arranged within the reflector'above the lamp, said partition being flatand inclined downwardly in a forward direction with its forward end arranged below the focal center of the reflector, said partition having its upper and lower surfaces polished whereby they serve as reflectors, said. partition serving to reflect the rays of light from the lamp downwardly upon the road bed, and a second lamp arranged within the reflector above the partifocal center the rays of light are not powerllO tion and above the focal center of said reflector whereby the rays of light from the second named lamp are relatively weak, said partition diverging with respect to the upper portion of the reflector so that it does not obstruct the free passage of the rays of light from the second named lamp.

2. A headlight for automobiles or the like, comprising a parabolic reflector, a lamp arranged in the focal center of said reflector, a continuous flat opaque partition disposed within the reflector above the lamp inclined downwardly in a forward direction to a line surfaces, and a second lamp disposed within the reflector above the partition, above and in advance of the actual focal point of the parabolic reflector, whereby the rays of light from the second lampare relatively weak and non-concentrative, said partition diverging With respect to the upper portion of the parabolic reflector permitting free and unobstructed passage of the rays from the second lamp.

-H ARRY F. HAMMOND.

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