US1233829A - Socket connection for lighting-fixtures. - Google Patents

Description

E. L. WHHE.

SOCKET CONNECTION FOR LIGHTING FIXTURES. APPLICATION m'sn FEB. 7. 1911 Patentd July 17, 1917.

WITNESS EDWIN L. WHITE, or BROOKLYN,

I @TAIE@ U NEW YORK, ASSIGNOR TO J. H. .WI-IITE MANUFACTUR- ING COMPANY, OF BROOKLYN, NEW YORK, A CORPORATION OF NEW YORK.

SOCKET CONNECTION FOR LIGHTING-FIXTURES.

Application filed February 7, 1917.

1 b all whom it may concern:

Be it known that I, EDWIN L. VVHrrn, a citizen of the United States, residing at the borough of Brooklyn, in the county of Kings, city and State of New York, have invented an Improvement in Socket Connections for Lighting-Fixtures, of which the following is a specification.

My invention relates to socket connections for the ends of tubes carrying the conductor wires in electric lighting fixtures. These connections have heretofore been made of a brass casting provided in the top with a threaded hole to receive the end of the tube, and having at one side another smaller threaded opening into which is screwed a hollow exteriorly threaded stud with one end projecting to receive the lamp socket, there being a passage way between the two openings for the conductor wires. These castings are heavy and the stud is liable to work loose or become detached in removing a socket. The object of my present invention is to economize in the cost of such connections by greatly reducing the quantity of metal used; dispensing with the necessity for screwing the socket receiving stud into the body portion and preventing any possibility of the stud being turned when a socket is removed from it.

The details of. the invention are hereinafter particularly described.

In the accompanying drawing:

Figure 1, is a plan view of the shell or body member.

Fi 9 is an elevation of the inner memt') 7 ber-removed from the shell.

ing the two members connected together ready for sale and use.

Fig. l, is a plan view of the device with the members assembled, and

Fig. 5, is a side elevation showing the device connected with a bracket and having a lamp socket attache Similar reference characters indicate like parts throughout the several figures of the drawing.

10, indicates a hollow globular body member open at the top and contracted at a predetermined distance below its upper edge forming an internal annular shoulder 11.

In one side of this hollow member there is an op ning 12, surr unded on the outer Specification of Letters Patent.

Patented July 17, 1917. Serial N 0. 14?,048.

surface of the body member by a boss 13. This body member is formed of sheet metal.

'14, denotes a metallic disk with upturned edge. This disk fits within the top of the body member 10, and rests upon the an nular shoulder 11.

By means of a punch and die, a hole is punched in the center of the disk 14, forming'a downwardly projecting tubular por tion 15, which is afterward internally screwthreaded.

On one side of the downwardly inclined projection or arm 16 upon the lower end of which there is an exteriorly screw-threaded nipple 17, having a flange 18 at its junction with the arm 16.

The disk 14, tubular projection15,'arm 16, and nipple 17, are preferably formed of one piece of metal, the nipple being formed by means of a punch and die, in a manner similar to that in forming the projection 15, the exterior being threaded after its removal from the die by any suitable tool. The interior of the nipple is smooth and is curved outwardly at its junction with the flange 18 to leave a smooth rounding surface at this point for to contact with.

disk 14-, there is a the conductor wires hollow body member 10, the disk being seated upon the annular shoulder 11, while the nipple 17 passes through the opening 12 in the body member projecting therefrom. The upper edge of the body member 10 is then upset or turned inward over the upturned edge of the disk thus securely locking the disk and nipple in position within the body, as shown in Figs. 3 and 4.

The device is now ready for attachment to a fixture and to receive a lamp socket, as illustrated in Fig. 5, in which 20, indicates the tubular arm of a bracket or other fixture, the threaded end of which is screwed into the central threaded tubular projection 15, on the disk 14, the lamp socket 21, being screwed onto the projecting nipple 17, and against the boss 13, which boss strengthens the shell 10, at the opening preventing any tendency to buckle the shell.

The conductor wires (not shown) pass into the hollow body 10, from the tubular arm 20, and through the nipple 17 the interior of which being smooth and curved at its junction with the flange 18 as described,

therexis no tendency to cut or injure the'insulation on the wires.

By the employment of my invention there is adargesaving in'material,and-cost of manufacture the socketreceiving' nippleis securely held in proper position at all times and cannot be loosenedor displaced in removing a socket, and the nipple provides a smooth interior which "prevents inj ur to the conductor Wires.

I claim as my invention: 1. A device of the bharacter' describ'ed,

' comprising a hollow body with an aperture in one side, a disk securedvvithin'saidbody,

= a nipple connected With said disk andzprojecting through"sa1d-side aperture in the body, said disk having a 'threaded' central opening for connecting the device to alighting fixture.

2. A device of 'the character described, comprising-a body- :shell open at the top and having an aperture in one side surrounded 'e by anexterior boss, a disk'secured'vvithin the top of said :body and having a projecting =arm With anipple upon its free"end,*said nipple projecting through said side aperture 7 "in the body, and said disk having a eentral opening to receive-theend v lighting fixture.

of an=arm of a A "device-of the character described,

comprisingahollovv body open:- at the top with an internal annular shoulder adjacent 3 Copies ofthis patent -may'"-beobt per edge of the 'bodybeing the top andanapei'turein one-side, a disk with upturned edge Within said body and seated upon said annular shoulder, the upturned over the upturned edge of saidd-islito secure it in position, a dependent arm extending from one side of 'saiddisk, an exteriorly threaded nipple connected to the free end of said arm and projecting through said aperture in the sideof thehollow body, said disk having a central opening for receiving the end of a lighting fixture.

4. In a lighting fixture and in combination, ansoeket connection comprising-afhollow-body open at the top with au 'iuternal annular: shoulder adjacent the top and an aperture in oneside, a'disk with upturned edgewithin said bodyand seated upon said annular SlIOUldGLT/hGtOD edge of the body vbeing turned over the upturned edge of said disk to secure it inposition, a =depen dent arm extending flOlTIOIlG side of said disk, an exteriorlythreaded nipple connected: to the end of said arm and projecting through --said apertu re 'in the side of the hollow body, lamp' socket secured upon' said projecting endof thenipple, said disk havinga central ---'threa"de'd "opening for connection with-the fixtu re.

*Signed'byme this 29th day of January,

EDWIN L. WHITE.

ained iorfive-=cents eachpby addressing the *Gomhnissi'on'er of--Patents,

Washingtom-Di G.

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