US1249574A - Electric lamp. - Google Patents

Description

G. E. WERNER ELECTRIC LAMP.

APPLICATION FILED SEPT. 2e, 191s.

1 ,249,574. Patented Dec. 11, 1917'.

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' Specication of Letters Patent.

Application filed September 26', 1916. Serial No. 122,232.

To all whom t may concern.'

Be itknown that I, GEORGE E. WERNER, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of. California, have invented a new and useful Electric Lamp, of which the following s a specification.

This invention relates to improvements in electrical lamps for vehicles and has for its primary object to provide a vehicle lamp which is simple in construction, inexpensive to bperate, durable, waterproof and will not short circuit. I

Another object is to provide a lamp of the character described in which the source of current, a standarddry battery, is carried in the lamp casing, said casing snugly and removably receiving the battery. A further object is to provide an electrical vehicle lamp, the body of which principally comprises a casting of durable uniform construction that is inexpensive to produce.

A still further object is to provide a lamp of the character described which can be used as a tail lamp for vehicles and may be reversed so that it can be attached to either the right or the left side of the vehicle.

An additional object is to provide an electrical vehicle lamp of the character described, which, because of the fact thatall possibility of short-circuiting is eliminated, all danger of a spark igniting dangerous gases is removed.

The accompanying invention:

`Figure 1 is a front elevation of the lamp;

Fig. 2 is a side elevation;

Fig. 3 is a horizontal sectional view taken on line 3-3 of Fig. 2;

Fig. 4 is a vertical sectional view taken on line 4 4 of Fig. 1; and

Fig. 5 is a longitudinal a modied form of lamp.

Referring to the drawings, 1 designates a preferably cylindrical housing or casing formed of some light metal such as aluminum and having its ends open and internally screw-threaded as at 2. Flanged caps 3 and 4 are mounted upon the upper an lower ends of the casing 1 respectively, the flanges being" located in inwardly oset relation to the periphery of the caps whereby the caps project beyond the side of the casing and render the closures water and-dustproof.

An internally screw-threaded tubular prodrawings illustrate the sectionall view of the inside diameter of the projection.

jection 1 is formed intermediate the ends Patented ec.. 11, 1917..

of the housing 1 on one side thereof,lther(e being provided an opening 5 in the housing approximately equal in diameter to that (f tubular member 6 having external screwthreads upon its inner end is turned within the screw-threaded projection 1 and projects outwardly at right-angles to the housing. An annular knurled bead 7 is formed on the outer side of the tubular member 6 and abuts the outer edge of the projection 1. The tubular member 6 is in the form of a casting and includes a concavo convex reflector 8 which is polished upon its concave face 9 and centrally is formed with a boss 10. The boss 10 is provided with ascrewthreaded opening 11 extending therethrough and into this opening is turned an electric globe 12, the inner end of which extends beyond the boss and abuts a resilient llat contact plate 13, said plate being held in a recessed insulation strip 14 secured upon the interior of the member 6 rearwardly of the reflector 8 by a screwy 15. rlhe screw 15 passes through a large opening in the plate 13 and does not touch saidv plate.. A concavo convex lens 16 is mounted within an annular recess 17 formed upon the inner face of the member 6 and held in place by a flanged ring 18, the latter being internally screwthreaded and turned upon screw-threads 19 formed upon the outer end of the member 6.

A standard dry cell 20 is mounted within the housing 1 and the housing'is of such diameter as to snugly receivel the cell so as to prevent rattling and eliminate relative movement between the cell and housing. The negative binding post 21 of the battery is connectedwith the Contact plate 13 by a conductor 22 and there is provided a band 22a of insulation material between the post 21 and housing 1. The housing 1 is recessed interiorly at its upper end as at 22b to receive the insulation band 2.2u and if deof the device so versed the band may be placed in the oppod y site end from that which is shown in the drawings and held in position in the recess. A spring contact plate 23 is connected with the positive binding post 24 of the 'battery and lies in superposed relation to said binding post in engagement with a contact plug 25 which is inserted through the cap 3 and extends through insulating bushing 26. Se-

that when the lamp is re- Laia-ere engaging one of the contacts of the lamp and secured Within said projection, aV conductor connected with one of the binding posts and said conducting plate, a Conducting member` connected with the other binding poet of the battery, a Contact plug engaging the conducting member and insulated `from the casing, a movable Contact member normally free from engagement with the plug and electrically connected with the casing, and means to more said last named Contact member into engagement with 'the plug to close the circuit :tor the lamp.

2. ln an electrical lamp, a casing adapted to contain a standard dry cell haring binding posts, an electrical lamp,` means to electrically connect one of the binding posts of the battery directly with the lamp, a housing carried by the easing, a contact plug extended into the casing and insulated therefrom, a. Contact member connected with the easing and mounted Within the housing, said Contact member the Contact plug, an electrical connection between the Contact plug and the other binding post of the battery, a Contact operating member rotatable Within the housing an adapted to engage 'and' more the Contact member into engagement With-the Contact plug, and a button for operating said contact operating member rotatably mounted upon and eXteriorly of the housing.

Signed at Los Angeles, California, this 19th day of September, 1916.

GEGRGE E. WERNER.

Witnesses:

CHAS. J. CHUNN, L. BELLE WEAVER.

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