US1114299A - Electric-light fixture. - Google Patents

Description

L. SEVERUS.; A ELEGTBIG LIGHT FIXTURE= Arnia/mm1 mmm umm, 1m,

Patented M120, 1914 E2.

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UNITED emerse ermee..

LUS SEVERUS, OF CHIGAGO, ILLEIH(HIS.4

ELECTRIC-LEGHE FIXTURE.

L11/ieee.

Specification of Letters Patent.

Patented Oct. 20, 1914.-'

Application led 'May 27, 1912. Serial No. @99,88%

T0 all whom it may concern Be it known that I, Louis SEVERUS, a citi- Zen of the United States, and a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Electric Light Fixtures, of which the following is a, full, clear,l

and exact description.

The invention relates to electric-light fixtures.

It is new common practice to provide porcelain jackets which resemble candles in appearance, with electric lamps at their upper ends, in order to provide electric light fixtures in harmony Withthe furnishings or finish of u room. Generally these incandescent lamps are mounted in a socket sup- .ported in the upper end of a tube which was cut according to the height of the. jacket. In cutting the tubes, ior in the use of nonadjustable fixtures forsupporting the lamp, it frequently occurred that the lamp was not sustained in correct relation to the jacket in order to give the desired effect, due toinaccuracy in fitting and to variation in the length of the porcelain jackets Which cannot be readily cut by the fitter in installing the fixtures,

The present invention designs to provide an improved fixture which is adapted to be secured to the end of a pipe through which the conductors pass and which adjustably supports the lamp-socket, so that the socket may he set and held at different distances from the terminal of the pipe, and in the exactlrelation desired relatively to the upper end of the porcelain-jacket. By providing this adjustable support for the lamp-socket which is adapted to he' housed in the porcelain-jacket, the support is adapted to serve 'for use in jackets of different heights.

Another object of the invention is to provide an improved lamp-socket support which may be extended-or adjusted so that the tween ribs 30 on member 29.

is a side elevation of the improved support. Fig. l :is e section'teken on line 4-,4 Of' ing. 2.

10 denotes'a pipe-terminal of usual construction, Which is provided with a screw-` thread v11 at its upper end and a cup or base 12 rests upon a shoulder 13 on seid terminal.

The electrical conductors 14 and 15 are extended through pipejlO. Conductor 14. has its upper end connected by a screw 16 to the screw-threaded shell 17 of an incandescentlmnp socket 18 which is adapted to receiveV the base of an incandescentlamp 19 of usual construction. Conductor 15 is connected by a screw 2O and a strip 21 to the tip-contact 22 which is adapted to contact `.with tip 22 of thelarnp bese. The body 23 of the lamp- 'f' l socket in which shell 17 and the contactcoi'mections are supported, is formed of insulating material, usually porcelain, and a stud 24 secured in the lower end of said body is provided with e screw-thread '25.

rEhe improved extensible support 27 for the lamp-socket comprises'tvvo members, .28"

and 29 which are slidably fitted together, member 28 fitting in e channel formed beextends through an elongated slot 32 i'nto member 28 and is adapted to clamp the inembers securely together. -Member 28 'has an internally threaded sleeve or boss 33 which vis adaptednto engage the screw-thread 11 on pipe-terminal 10 to secure the support 27 to I the pipe 1i). The other member 29- of the extensible support-is provided with a screwthread which is adapted to engage the thread Q5 on stud Q11 which is secured in the body of the lamp socket 18. A porcelain jacket 3G fits into thecup 12 and extends around the support 27, the lamp-socket, and the conductor Wires, thus concealing the entire supporting structure.

In installing the fixture. the screw-thread 25 of the socket 18 is connected to the screw- 'thread in member 2) to secure the socket to the upper end of the support. rlfhe sleeve 33 is then turned. on screw-thread 13 of the pipe-terminal 1() to secure the support on the pipe-terminal and to secure the cup 12 thereon. Member 9.9 may then be adjusted to the desired height to bring the socket into the desired elevation so that it-vvill be properly positioned relative to the top of jacke 30 so that the hunp willbe supported in itsdesired position. The conductor- A screw 31 wires are then -'connected -to the contactterminals 16 and 20 and the jacket 36 slipped in place around the support socket be adjusted to bring the lamp exact-l ere that the adjustable support for the spirit and scope lof the invention. l

Having thus described the invention; 'j

and Wires. The lamp will then be secured in the socket. Obviously, the .support may. into the desired position relatively to the jacket, by adjusting lrneniber 29 on member 2S of support 27.

important advantages of the invention lamp-socket is adapted for holding incendescentl lamps in the proper position above porcelain jackets or dierent heights, that it overcomes any irregularity due to variation in the length of the jacket, and that it also permitsthe socket to be adjusted into proper relative position with respect to the jacket, according to the shape of the lamp `used. Thus, the-invention avoids the necessity of specially fitting a support to the pipe-terminal in order to support the socket in the de sired position relatively tothe top of the orcelainV jacket. Upon removal of theA jacket, the conductors will be readily eccessible :for repair;- rlhe invention is not to be understood as restricted to the details set forth, since these may be modified Within the scope of the appended claims without departing from the nueces; j

inwardly bent ends being provided with e screw-thread forconnection to the pipe-terminal and to the socket respectively.

2. An electric-li ht fixture comprising a' pipe'terminal, an incandescent lampeOCkeT, a pair of conductors leading from theV terminal to the socket, a stud in seid socket at the lower end thereof, an extensible support comprising a air of bers each provided with je. screW-'read for connection. .to vthe pipe-terminal and to the stud on the socket respectively, said bars being odset intermediete their points of connection to the pipeter'minal and to the sockets res ectvely to permit the conductors from t e terminal to aline with the socket and to be readily adjusted without intereerence by seid support, and e jacket around said snp ort.

Y Y LGUIS SEV RUS. Witnesses: Mr! mum A. STUMPF,

,Farine S. BLANCHARD.

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