US989289A

US989289A - Electric-light fixture.

Info

Publication number: US989289A
Application number: US55165110A
Authority: US
Inventors: Jacob J Raithel
Original assignee: Individual
Current assignee: Individual
Priority date: 1910-03-26
Filing date: 1910-03-26
Publication date: 1911-04-11
Anticipated expiration: 1928-04-11

Description

J. J. RAITHEL. l `IzLleofl'Bm LIGHT FIXTURE. APPLICATION FILED MAB. 26, 1010.

Patented Apr. 11,1911.

lnvenhor'z. d1). Rihhk f JACOB` J. RAITHEL, or' s'r. LOUIS, MISSOURI ELECTRIC-LIGHT FIXTURE.

Specification of Letters Patent.

Application led March 26, 1910. Serial No. 551,651.

tures, o which the following is a full, clear,

and exact description, reference being had to the accompanylng drawings,- forming part of thisspeclfication'; l

My invention relates to an electric light fixture, and it has for its object the production of a fixture of this description comprising .a sectional body that receives the lamp lsupporting arms and includes structural features ywhereby the lamp supporting arms may be efficiently clamped in the body Instead et' being connected thereto'by the provision of screw threads upon the lamp supporting arms, and ythe tapping of the body to receive the screw threaded portions of said arms.

. -F igui'e .I is in part a vertical section and in' part an elevation of my fixture. Fig. II is an enlar ed cross section taken on the line II-II, ig. I. Fig. III is a perspective view,'on a reduced scale, of the fixture body with itsV members separated, and showing the inner ends of the lamp supporting arms in positions ready to be put in place within the body.

In the accompanying drawings :`-A designates the fixed lower section-and B the clamping rotatable upper section of the lamp supporting arm receiving body vof 'my'fixture. ,The fixed lower section A com rises a spider 1 and a ring 2, preferably ma ein- .tegral 'with said'` spider." The spider 1' is y smounted by a hollow post v5 which is in n surmounted by a tubular neck6 that is screw threaded exteriorly. In-the ring of the lower section A are transverse grooves 3 adapted to receive the lamp supporting arms 7. These grooves may be of any desirable number, according to the number of lamp supporting arms that it may be desired to utilize in the fixture, although only two of said grooves are shown in the drawings.

4 are spurs, or studs, projectinfv from the ring 2 in the grooves therein, and which are adapted to enter into 'perforations 8 in the lamp supporting arms 7 to prevent end- `wise movement of said 'lamp supporting arms when they are seated'in said grooves, as seen in Figs. I and II. The perforations iust mentioned are shown at the tops ofthe lamp supporting arms in Fig. III, but are will be understood that the lamp supporting arms are intended to be turned from the p0- sitions in which they are seen in Fig. III, in order that the perforatious may receive the studs 4 when the arms are seated in the grooves 3.

The clamping rotatable upper section B of the fixture bod comprises a spider 9, a ring 10 carried y said spider, and corresponding in diameter to the diameter of the ring of the lower section A; and said section also comprises a sleeve l1, interiorly screw threaded, and adapted to be fitted to the scre\\"thieaded neck 6 of the lower section A.

Inflnounting the lamp supporting arms in thesectional body of my fixture, the -arms are seated i n the grooves provided therefor in the body section A, with the studs 4 entered into the perforations 8 in the arms, and thereafter the section B is rotatedup'o'n the screw threaded neck 6 of the section A;

to cause said neck to enter into the sleeve 11 Patented Apr. 11, 1911.

of the section B and the ring l0 of said sec-jv the ring of the other sectionfit' comes into contact with the lamp supportingarms, and continued rotation ofsaid section results in the lamp supporting arms becoming clam ed between the rings of the two sections, an to be movably held in their proper positions in the body of the fixture.

tion to approach the ring 2 of the section"` A. As the ring of the section B approaches The upper section of the fixture body is connected to a supporing stem 12 of ordinary type, and through which the electrical contact wires extend to the neck 6 of the lower section of the body and therethrough to ex- `tend in diver-ging directions after entering the hollow post 5, in order that they may lead through the lamp support-ing arms 7.

The `fixture body is preferably incased by a' sectional shellv in the usual manner, and for which no invention is herein. claimed.

1. A lam fixture, comprising a pair of sections, eac providedlwith a clamping ring adapted to oppose the clamping ring of the other section, the sections havin screw threaded engagement with each ot er, and a lamp supporting arm clamped between said clamping rings.

2. In a lamp` fixture boda', a section comprising' a ring and a screw threaded neck centrally located relative to said ring, and a second sectlon comprlslng a rlng, and a screw 4threaded sleeve adjustableupon the neck of the first mentioned section "no provide for the movement of the ring of the second section toward the first section.

3. In a lamp xture body, a'sect'on comprising a ring having, transverse grooves therein and studs n said grooves, and also I HOWARD (lr. Coeli, :EDNA IINN.