US1557555A - Headlight - Google Patents

Description

Oct. 20,1925. 1,557,555

' F. BUCHANAN HEADLIGHT Filed Oct. 9, 1923 t 10 1 Z0 1i MAZM ' 1 N VEN TOR.

A TTORN E Y5,

Patented Oct. 20, 1925.

UNITED STATES FRANK BUCHANAN, OF SYRACUSE, NEVT YORK.-

HEADLIGHT.

Application filed October 9, 1923. Serial No. 667,498.

To all whom it may concern:

Be it known that I, FRANK BUCHANAN, a citizen of the United States, and a resident of Syracuse, in the county of Onondaga and State of New York, have invented a certain new and useful Headlight, of which the following is a specification.

This invention relates to electric lamps, and particularly head lights, and has for its object a particularly simple and efficient construction, whereby the electric lamp is yieldingly carried relatively to the case or body of the head light, so that it is relieved of the jars, jolts and vibrations to which the body of a head light is subjected.

The invention consists in the novel features and in the combinations and constructions hereinafter set forth and claimed.

In describing this invention reference is had to the accompanying drawings in which like characters designate corresponding parts in all the views.

Figure 1 is a verticle section view of a head light embodying my invention.

Figure 2 is a front elevation, partly in section, of the lamp socket, the carriage therefor, and the support for the carriage- This head light comprises generally a case, a support in the case, a lamp socket having a carriage carried by the support, and yielding shock absorbing means between the carriage and the support, whereby the lamp is yieldingly mounted relatively to the case and other parts carried thereby, and is relieved of the jolts and vibrations received by the case in the ordinary use of the head light, so that the liability of breakage of the lamp filament due to jolts and jars is eliminated.

1 designates the case which is usually formed of metal and rigidly supported upon the body of a car, as a street car. 2 is a reflector fixedly mounted in the case, and 8 is a door closing the front end of the case, and carrying a suitable glass or lens 4. The door may be held in position in any suitable manner, and, as here shown, it is secured to the case by means of bolts 5, ex-

- tending through openings in lugs 6, 7 on the door and on the case respectively, and nuts 8 on the bolts.

9 is the support for the lamp socket, the support comprising a plate fixed to the rear wall of the case behind the central opening 10 in the parabolic reflector 2, and a plurality of rods or studs 11, extending horizontally forwardly from the plate, four of the studs being shown in the illustrated form of my invention. Each stud 11 is pivoted at 12 on a horizontal axis to support 9. The bearing 13 of the stud on the pivot 12 is loose enough to permit yielding movement of the stud in all directions.

14 is the lamp socket arranged between or among the studs 11, and 15 is the carriage for the socket, it being here shown as a plate upon which the socket is mounted, the plate having outwardly extending lugs or cars 16, formed with openings 17 through which the studs 11 pass. The openings are large enough to permit a relative rocking or tilting movement of the studs and the carriage in any direction.

The shock absorbing means for yieldingly supporting the carriage comprises springs 18, interposed between the front sides of the lugs or cars 16, and shoulders as nuts 19 on the front ends of studs 11, and springs 20 interposed between the rear sides of the lugs or cars 16, and the support 9.

21 is the lamp having its base screwed into the socket 14 with its bulb extending into the reflector in front of the same.

The feed Wires 22 extend through a hole in the case and are connected to the terminals of the lamp socket.

In operation, owing to the springs 18, 20 and the pivoted studs 11, the lamp is yieldingly mounted relatively to the case and other parts carried thereby, and hence the jolts and vibrations of the relatively heavy case are not transmitted to, nor received by the lamp and the lamp socket, but such jars and vibrations are absorbed by the springs, thus relieving the. lamp filament of vibrae tions that would cause, it to break.

What- I claim is:

1. In a lamp the combination of a support, a carriage for a lamp socket carried by the support comprising studs pivotally conmated to the support, a lamp socket mountcd between the studs, a carriage for the socket and springs arranged to act on the carriage and the studs to yieldingly restrain movement of the studs and movement of the carriage relatively to the studs.

2. The combination of a lamp case, a sup- .port carried within the case, a carriage for the lamp socket carried by the support, comprising studs connected to the support to have a universal movement in all directions, the studs having shoulders spaced-apart from the support, a lamp socket mounted between the studs, a carriage for the socket through which the studs extend, springs encircling the studs and interposed between the carriage and the shoulders on the studs, additional springs encircling the studs and interposed between the carriage and the support, and a lamp carried by the socket.

3. In a headlight, the combination of a case, a reflector, mounted in the case and formed with a central opening a support mounted in the case in the rear of said opening, comprising a plurality of forwardly extending pivoted studs, having shoulders at their front ends, a lamp socket mounted between the studs, acarriage for the socket having passages through which the studs extend, springs encircling the studs and interposed between the carriage and the shoulders on the studs, springs encircling the studs and interposed between the carriage and the support, and a lamp carried by the socket and extending through the opening in the reflector, whereby the lamp is yieldingly mounted relatively to the case and therefiector.

In testimony whereof, I have hereunto signed my name, at Syracuse, in the county of Onondaga, and State of New York, this 5th day of July, 1923.

FRANK BUCHANAN.

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