US1538409A - Spotlamp - Google Patents

Description

,May 19,1925. 1,538,409

C. D. RYDER SPOTLAMP Filed March 25, 1922 ATTORNEYS.

Patented May 19, .1925.

A UNITED STATES ATEN OFFICE.

v CHARLES n. RYDE or omcmnncrnomo, AssIeNoR, BY MESNE ASSIGNMENTS, TO THE 'rrros. a oo ooRAN LAMP co, or omcmna'rr, omo, A CORPORATION or OHIO.

SPOTLAMP.

Application fi1ed March 25, 1922fs'e'ria1 No. 546,915.

To all whom it may concern i 1" I Be it known that I, CHARLns D. RYDER, a citizen of the United States, and a resident of Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and-useful Improvements in Spotlamps, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings forming part of this specification.

y searchlights, and similar illuminating devices, and more particularly to the mechanical as distinguished from the electrical and optical features thereof.

Particularly in connection with motor vehicles, spot lamps of the character of my invention have been developed with a view to giving freedom of'movement and ready adjustability. This necessitates mounting the'lamp from one point as for examplethe stein which serves as a lamp bulb connector support and'a conduit for the wires leading thereto, as well as a handle by which to control the lamp. Sinoe'such a mounting subjects the overhanging lamp body to vibrational strains of a more or less destructive character, an object of my invention has been to produce an improved body mounting for spot lamps in which vibration of the lamp body can not detrimentally afiect the strength of the structure.

The above object and other advantages to be noted I accomplish by that certain construction and arrangement of parts, to be hereinafter more specifically pointed out and claimed.

In the drawings, 7

Figure 1 is a central cross section through the lamp and lamp base.

Figure 2 is an elevation-taken from the rear of the complete device when mounted in a motor vehicle.

Figure 3 is a' detail plan view of the mounting bracket. y

Figure 4 is a detail illustrating the controlled angle position of the lamp.

Figure 5 is a section on the line 5-5 of Figure 3. Y g

Referring first to the lamp it will be noted that there is provided the usual reflector shell 1 and a lamp body or protective casing 2, which is engaged at the front of the invention relates to spot lamps,

reflector, together with a'lens 3, by means of'a split ring 1. This ring 4 engages the lens at the front and the outer casing at the rear, and istightened in place by means of a bolt 5 engaging in socket pieces 6 formed on the end of the ring. 7 i

I provide a base 7 which is formedo'f a hollow cast body having an'internal dimen- 'sion suitable for receiving a lamp socket 8,

in which is mounted the lamp 9. The terminal plug 10 is also engaged with thesocket.

The base piece has the widened" cup' shaped portion 11 and an annular lip 12' about its central aperture concentric with this portion 11. a The outer casing of the lamp has a heavy metal ring 13 secured therein by brazing or otherwise, and the lip 12 in assembling the lamp is clinched outwardly over the said ring 13 within the casing. This holds the casing very firmly and permanently on the base. 7

The base piece is formed with a carefully turned ball 14:, and a shank 15 connecting the ball and casting proper. 1

A mounting arm or bracket 16 is provided having at one end some desired clamp means 16 for securing it to the molding of a wind shield in motor vehicles, or some other form of clamp or mounting means where the 'use doesnot permit of the usual molding clamp.

At its outer end this arm is formed with a semi-spherical socket 17 to fit the ball. A

clamp 18 is providedhaving a spherical end 19 also adapted to fit the ball; This clamp.

is engaged'by the head of a'bolt 20, which passes through the bracket arm and is there fitted with a spring washer 21 and a wing nut '22.

By turning down the nut assisted by the spring washer, the clamp may be brought over the ball in such a way as to permit of movement of the lamp without looseningthe' wing nut,.or of completely looking or ing the ball against anymovement of the lamp. The spring washer will give, in the first mentioned adjustment, so thatthelamp may be moved. about, but so that the jarring clamp imparted to it by a vehicle passing over rough road surface will not dislodge it from any located position.

The space between the clamp socket and v about 15 degrees.

the bracket socket results in a clarance, as indicated at 23, through which the shank 15 may move. Furthermore, the face of the bracket about the spherical socket therein is so directed that when (in a motor vehicle) the mounting clamp is engaged with the molding of a wind shield, the walls about This will act to prevent the driver of the vehicle from-turning his lamp so that the rays therefrom strike so high from the ground as to'run counter to state laws and municipal ordinances as to vehicle lamps.

There is a notch 24 in the socket portion of the clamp to guide the driver in positioning his lamp at this normal driving position.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is

A spot lamp comprising a centrally apertured cup shaped casing and a base, said base consisting of a hollow body adapted to receive a lamp socket, the base having a cupshaped end adapted to fit the outer surface of the casing around the central aperture thereof, a lip extending from the cupshaped end concentrically with and in continuation of the socket-receiving hollow thereof, and an apertured casing reenforcement occupying the casing opposite the cup-shaped end of the base and in position upon the lip, the lip projecting beyond the reenforcement and clinched upon it.

CHARLES D. RYDER.

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