US721435A - Incandescent-lamp socket and fixtures. - Google Patents

Description

N0' 721435' y PAT'ENTBD PEB. 24, 1903.

f P, H. PIELDING.

INGANDESCENT LAMP SOCKET AND FIXTURES. APPLIoATIoN FILED Agn.14,`19o2.

K0 MODEL.

we nonms versus co.. Normung. WASHINGTON4 n. c.l

UNITED STATES PATENT OEEICE.

.PHILIP H. FIELDING, OF NEW YORK, N. Y.

iNcADEScENT-LAM PsocKET ANDA FIXTURES.

sPEoIEIcATIoN'formmg para of Letters Patent No. ralhsauatea February 24, 1903.

.. 'Application iled A-pril14, 1902. Serial No. 102,720. (No model.)

To @ZZ whom it may concer-n..-

Beit known thatY LSPHI'LP H. FIELDING, a citizen of the United "States, residing at the city of New York, in the borough of Manhattan and State of NewYork, have invented vcertain new and useful Improvements in In- The complete details of construction will beV described with reference to the accompany? ing drawings, in whichp Figure lis a side elevation of my improved device, and Fig. 2 a central section of the same. Referring to the drawings by letter, a is a block of insulating material which serves as a base, to which are attached the conducting and supporting parts of a lamp-socket of any type. As shown, the socket isof the Edison type, having the usual threaded shell a', at the bottom of which is a center contact of which the lug a2 is an extension. Said lug leads through an opening in the side of the shell, as shown, and carries a binding-screw d for securing one of the conducting-wires.

vIt will be understood that a lug of similar character, connecting with the shell a', is located on the opposite side of the block aand carries a binding-screw similar to as for the attachment of the other conductingwire. These parts being of ordinary construction it is not considered necessary to illustrate them in detail. v

The block or base a may be of any suitable shape; but as here shownit consists of a thick disk from one side of which a projection a4 rises. This projection is embraced upon oppbsite sides by a yoke-shaped metallic frame b, having a tubular neck b', which is threaded exteriorly.` `The yoke is secured to the projection by a lateral bolt b2, which forms a pivot affording slight lateral movement bey'tween the yoke and the base to allow the socket to settle itself within the shade, as will hereinafter appear. The conducting-wires l and 2 lead through this neck and yoke and, separating at the upper end of the extension 1 a4, lead downward on each side thereof to the the shape of a lily. AThe part immediately surrounding the socket should be made of an interior shape to conform to the shape of the socket, and thus prevent'relative movements of the parts and provide a rigid structure. At the base lof the shade there is a small opening, through which the neck b of the socketpasses, and to secure the socket and Athe shade in fixed relation with each other a sleeve e is screwed onto the projecting part of the neck b until it clamps against the edge of the opening in the base of the shade,

and to make a good fit at this point the lower socket must be secured by screwing. Before the socket is thus secured, however, the conducting wires l and 2 have to be drawn through the fixture and secured to the socket in the manner before described,- and if the socket is then directly screwed to thefiXture the wires will be twisted,wh-ich is undesirable. To avoid this, I interpose `the coupling g, which is provided with an internal threaded passage adapted to screw onto the nipple f and also with an annular flange g', adapted tol pass freely over the upper portion of the sleeve c. The wires are passed through this coupling before they are passed through the neck b' to the socket, and after the slack in the Wire has been taken up by drawing it backward through the fixture F the coupling g is screwed onto the nipple without rotating the sleeve e. When the coupling is fully in in place, the screws g2 and g3 in the flange g are set up to engage with the sleeve e, the sleeve being provided with an exterior annular groove e to receive the end of the screw g2, which prevents the separation of the two parts e and g. The screw g8 passes through the sleeve e and binds against the thread on the neck b', thus not only securing the parts e and g together, but also preventing the unscrewing of the sleeve on the neck and the consequent loosening of the joint between the bevel edges of the sleeve and shade. When thus in place, a lateral screw g, carried by the coupling g, isset up against the nipplefto prevent the coupling from turning in either direction. This last screw therefore prevents the entire socket from being rotated, which might otherwise take place to a slight degree when the lamp is screwed into and out of the shell a'.

Having described my invention, I claiml. The combination of the contacts, terminals and lamp-holding devices of an incandescent-lamp socket, with a lamp-shade detachably connected with said parts and provided with an inclosing casing therefor and having integral extending portions forming the shade or reflector, substantially as described.

2. The combination of an incandescent- 55 lamp socket, a shade therefor having an opening, a. tubular neck projecting from the socket through and fitting said opening and a clamping-sleeve on said neck for holding the shade.

3. The combination of the contact-termi- 4o nals and lamp-holding devices of an incandescent-lamp socket, a lamp-shade provided with an integral inclosing casing for said parts of the socket, said shade having an opening, a tubular neck projecting from said 45 socket parts through and fitting said opening and a clamping-sleeve on said neck for holding the shade, substantially as described.

It. The combination of a lamp-socket, a supporting-bracket having a threaded nipple, a 5o neck extending from the socket and a coup` ling having a threaded part adapted to engage with said nipple and meansfor attachment to said neck, substantially as described.

In witness whereof I subscribe my signa- 55 ture in presence of two witnesses.

PHILIP H. FIELDING.

Witnesses:

WALDo M. CHAPIN, FRANK S. OBER.

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