US1191812A - Electric-lamp-socket casing. - Google Patents

Description

' v H. J. MOREY. l

ELECTRIC LAMP SOCKET CASING.`

APPLlcA-TloN H LED APR. le, 19M.

L9w- Patenteduly 18,1916.

HAB/BY J. 1VIOREY, 0F SYRACU'SE, NEW YOBK ELECTRIC-'LAMP-sooxn'r Casin-G.

Specification of Letters atent.

Patented July is, 191e.

Application ined Aiirii 1c, .1914. serial No. 832,292.

T all whom t may concern.' n

Beit known that I, HARRY J. MOREY, a

citizen of the United States, residing at Syracuse, Onondaga county, New York f State, have invented certain new and useful Improvements in Electric-Lamp-Socket Cas- 'ngs, of which the following is a specifica= vtion.

This invention relates to casings for electric lamp sockets and the like, and has particular reference to 'improvements in the cap portion of the casing.

u The principal object of my invention 1s to eliminate insulating joints between the. socket and the fixture to which the same is attached and is especially suitable foruse on bath room fixtures and similar locations.

The above and other objects and the novel features of my invention will be apparent from the following'description taken in confI nection with the drawing, in which,

Figure 1 is a side elevation showing a socket embodying my 'invention as it appears when attached to a xture; Fig. 2 is a plan view of the cap portion of a' casing embodying my invention; Fig. 3 is a bottom plan view of the same; Fig. 4 is a cross section of the capl embodying my invention, taken on the line,4-4 of Fig. 2; and Fig. 5 is a cross section of the cap taken on the line 5 5 of Fig. 2, showing the upper end of the casing asl it appears when interlockedv with the cap, and showing the connectionv of the cap to the fixture. i

Referring to the drawing, the socket, the lamp attached thereto, and theginclosing casing for the socket are shown as supportedn from the side wall 10 by means of a fixture 11 which consists in the present case of a curved piece of brass tubing which is provided with threads 12 at its outer end. The casing for the socket 8 and insulating'lining 9 carrying the switching mechanism and lamp terminals of any preferred design Con' sists of a cap to be more fully described and a tubular shell 14 of the usual construction which has a slot (not shown) extendingV downwardly from its upper end to receive the spindle carrying the key 15, by means of 'which the switching mechanism on the intral opening 40 provided with threads 41 to terior is operated. The socket 8 on the interior has lamp terminals to receive and hold an incandescent lamp 16. At its upper edge the shell 14 has a plurality of corrugations 17 and-also has horizontaland vertical latching lips, a hnizontal'l latching -lip being i shown at 18.

. The construction of the shell 1s not .new and is substantially like that shown y1n the patent to G. W. Goodrdge, No.

The cap comprises a block 20 of insulating material, such as porcelain, which is provided at its center 'with an opening 21 flaring downwardly and lat opposite sides of the center has recesses 22 to receive the angular lugs which are integrally connected tola ring 24, which' liasa large number of symmetrically arra nged rectangular openings 25. The

openings 25 are closed on the outside by a brass ring 26 which has a narrow interior flange 27 `fitting and supported by a shoulder 28 on the ring 24 and has its `lower edge spun inwardly as at 29 under the lower edge of the inner ring 24. The inner and outer rings telescope over the upper edge of ,the shell 14 and the latching lips on `the latter engage in the openings 25 of the inner ring n 24 and detachably lock the two parts together. It will be understood, however, that my ,invention is not limited to the particular latching means shown and any desirable typeof interlocking device between the cap and shell may `be employed, one of the readily detachable type being preferable.

The interlocking means herein shown is fully described in the patent to Goodridge above referred to.

The insulating block 20 is notchedas at 30 to receive the end of the outer'ring 26 and has an overhanging part 31 which is of greater diameter than the attaching ring and extends downwardly and overlaps the vupper end thereof. .Each of the integral se- The screwsI 34 extend throughopenings in the horizontal parts 33 of the lugs and through partitions 35 into recesses.

36 opening at the top of the block 20. The threaded screws are held in place r'by nuts 37 bearing on the partition walls 35 and the cavities 36 are*v then filled with suitable in sulatingmateral 38 to cover the metal parts.

A brass sleeve or nipple 39 having a cenfit the threads 12 on the end of the brass tube 11 has integral ears 42 on diametrically opposite sides thereof at the lower edge, provided with threaded openings to receive the screws 43 which hold the sleeve 39 in 'place' on the block and cQ-axial with the open-A cap may be attached to` a socket shell, said ing 21` of the block. The screws 43 are /means comprising a ring having lugs for atpassed through openings 44 from the under side of the block and the heads 45 of the screws 'rest on shoulders at the,.bottom of the screw cavities 44.- In order .to lock the l sleeve in placel on the end of the tube'll, I

.tends through the wall of the sleeve.

ears 42 andthel lower end of the nipple 39 provide a pointed setscrew 46 which ex,-

The

are counter sunky so that the ears will be disposed flush with the top of the block 20,-

Itwill be seen that I have provided acasing' for alamp socket or the like which may be attached to a metal-support oriother fixture and still be completelyinsulated-'therefrom, the block or separating Amember 20 constituting an insulating 'barrierb'etween the metal parts surrounding the lamp socket and the nipple "by means vof which the shell is attached to the. fixture. The usual insulating lining for the shell portion 14 ofi the casingmay or may not be eliminated as pre-v ferred, but the construction of the capl does away with the insulating lining for the cap..

The downwardly flaring opening` 21 leaves sucient room `for bends 1n the incoming wires which are attached tothe-terminalson the lamp socket. 4 While Lhave shown anddescribed. my in` vention in detail, I -do not wish to be limited tothe exact construction vshown as it is clear that numerous modifications may be made Without departing from 'the spirit ofthe invention.

the combination of a block of insulatingv material having an opening extending centrally therethrough, and means whereby the taching the same to said block, and a second lring carried by the `first mentioned ring and providedwithV means for-interlocking with portions on the socket shell.

2. A cap oi''v the class described compri@ ing the combination of ablock of insulating material having an opening extending centrally therethrough and also having recesses in' the lower side thereof on opposite sides of i said 'opening7 `and means whereby the 'cap may be attached to a socket shell comprising `a. ring having'lugs secured in saidrecesses in the block, anda second ring lcarried' on the inner side of said first mentionedring and havingl a series ofv recessesI adapted to receive portionsl of thesocket Ashellto secure thecaptothe shell. l l l l 3. 'A cap of the class described-comprising a substantially cylindrical body of in- 'sulating material Ahaving a central opening extending. therethrough, a 'nippley'secured to the top of ,said -body coaxially with said opening,I and a device whereby the cap may be attached to a socket shell', said devicehaving means uniting the same to the body of insulating material, said'uniting means be- Aing located within the marginof said body.

4.3 AI cap of the clas's'described coinpris.- ing a bodyof i'nsulatingmaterial having a centrally disposed opening daring toward the lower side, a nipple secured to said body above the opening and coaxiallytherewith,

and means on the lower side of saidbody for attaching the cap to a socket shell.

f In testimony whereof I affix my signature in presence oftwo Witnesses.

V 1 'HARRY J..MOREY. Witnesses: A I

J. M..Bizooiis, J.. S.' CRo'ssLEY.'

Images