US2073512A - Socket - Google Patents

Description

Mgrch 9, 1937. F. c. DE REAMER Inventor Frank C-DeReamer,

SOCKET Filed sept. l1'0. 1935 H is Attorng.

llzatentecl Mar. 9, I v

UNITED STATES, ,PATENT oFFica f f socim'r Frank C. De Beamer, Bridgeport, Conn., assigner I to General Electric Company, a corporation of New York A f Application "september 1o, 1935, serial No. l39,933

. 2 oicimsf (ci. 173458) My invention relates vto electric sockets and: tact 3 is secured to the base between ribs I 4 by socket mountings in general, and more partlcu' a bolt I5. The other end of this contact is lo-A larly to those of the so-called moisture proof type. cated centrally of the Well 5, extending over theIV An object of my inventionisto provide asocket edge of, and beingV supported by the raised ane 5 having improved means for preventing moisture nular portion II. x A 5 or other uids from reaching the contacts of the A Screw shell contact 2has a cutaway portionA I 6 socket after a lamp has been inserted therein. in the bottom I1 which permits its insertion over Afurtherobject of my invention is to provide an the annular portion II andthe ribs I4 of the improved means for preventing moisture or other porcelain base I. The' raised portions II and I l 10 uids from passing into the wall at the point projecting through thebottom Il separate the 10 f contact of myY electric socket.

where the socket is mounted. center contact 3 from the screw shellcontact 2.-" My invention will be more fully set forth inthe A plurality of holes I 8 are also provided in the following description, reference being had to the bottom I'lto cooperate with apertures 1, 8 and accompanying drawing, and the features of Ill. Shell 2V is securely .mounted in the 'socket nexed 'to and forming a part of this specication. 9 and 'l act as Cllrlfent a1`ynfe1ement500nnet Fig. 1 is an elevation in section of a socket asing the COUdUCOIS 24 and 25, the Center Contat Y sembly embodying my invention. 5 and the Shell 2 lrespectively. 20 Fig. 2 is an elevation partly in section of a por- Referring 'G0 FgS-;1 `and 4 it Will )be Seen that 'non of my electric socket, the iamp having been detents 2l are provided 0n the under side 0f the removed.

. Figa-3 is a perspective view' of the screw shell n lmbelvz Which act both as POUDEIPSHIIS t0 a.-

Fig.4is an end view of the socket illustratedby 'tl'iCa .Connections .for Conductors 24 and 25. 25'

Fig. 1. f c Y 5 jllustrateganappnon' of my'mveninsulating compound 22 after assembly. Boltsv tion as applied toa socket mountingon the ln- (nt..shwn) occupying apertures '8 and m are' 50' vention.

terior wall of a refrigerator. Referring to the drawing, and in prticular t Sinks 23 of ,square cross section are provided forlv 30 Figs; 1 and 2 it Wm he Sen that the Socket comapertures 8 and lIII to accommodate the nuts on prises essentiallya base I a; screw shell contact 2, .these bots- Y and acenter contact 3. The base I is formedof some suitable insulating ,ounter'smks 23 haVng ar channel -cross Section material such as porcelain and is of the usual type are prima@ t0 Permit a m01 e rugged and Secure- 35.v

011th@ bottom 'of the We11"5 is Vlocjmted an an; from gaining access' to the interior ofthe socket 40 nular raised portion ,I Ijsurrounding the center from whence it might pass through center aper- 40 bolt I3 tc be spaced from the center contact 3 thus plurality 'of stakines A2'! lare punched out of the '45 `Extending radially from the raised portion II larging a portion of well 5 near'its open end. In are tworaised rib portions I #of substantially the assembling the socket the shell is placed-in the same height. These two ribs include therepewell 5 together with theresilient sleeveV 4, and tween one ofth'circumferentially located smaller secured in.I place Vby the bolts .I 9. As the shell apertures 9. One end of the resilient center c onpulled down to -the bottom of the well the re- 55 silient sleeve 4 is forced against the shoulder 26 to eect a moisture proof se Resilient sleeve 4 is of such a length that when lamp 34 is screwed into the socketI the sleeve ex- 5 tends beyond the metallic base portion 35 and iir'mly grips the prooi seal at this point. The interior oi the socket is thus eiectively sealed from lmoisture entering the socket at the end in which the lamp is inserted. As a. consequence thereof no moisture will pass through any of the apertures in the base I to the opposite side of the wall 20.

. Since it is obvious -that moisture might also seep around the outside of the base I and through one of the openings in the wall 20, I provide an additional moisture proofing means in the form of a gasket 28 composed of some suitable resilient material, such as rubber, having two depending bushings 29 formed thereon.

The gasket 23 is also provided with a. center opening 32 and two, channel shaped openings 90 displaced from the depending bushings 29 to permit the gasket 23 to be slipped over the projections 33 thus making a snug fit with the base 25 I., The conductors 24 and 25 pass through the bushings 23 which grip the conductor to 'form a fluid-tight seal therearound.

In assembling and mounting moisture proof soc 30 follows:A

Cent/er contact 3 isplaced'between ribs I4 and secured in place;bymeans of bolt I5: At this point in the assembling operation the free end portionof contact 3 has not yet been bent over the annular raised portion I i, since it is apparent that the latter must be left fr ee to insert bolt I3. vResilient sleeve 4 is slipped over the outer end of screw shell contact 2 and a plurality of stakings I 21 are punched out of the shell to grip the resilient sleeve in the manner and for the purpose hereinbeiore described. The screw shell contact 2 is then placed in the well 50i base I, the cut away portion IB being slipped over the two raised portions II and I4. The shell is then secured in 45 place by means of bolts I9. Asthe bolts are tightened, the resilient sleeve 4 is pulled tight against the shoulder 23 to form a' uid seal.

Conductors 24 and 25 are then passed through Athe wall 2l and through the bushings 29 of the gasket 23. 4lll suitable' electrical connection is then made between the conductors., 24and 25 and the current conducting bolts I5 and I3- respectively. lhis maybedone' in any manner my improved et mounting I proceed as well known to those 'skilled in the art, such as by An insu- Y 55 soldering the conductor to the bolts.

, lating compound 22 is4 placed in the detents 2I` in a manner well known in the art. l-The entire unit is thenutted to thewall 20. theV depending p through 'the glass itself to form a moisture -n passing openings 3i and the projections (not shown) throughcorresponding openings in the wan 2a. A pou I3 is inserted incnter aperture 6, a corresponding opening 32 in the gasket 28 and a corresponding hole 33 in the wall 20 and is secured in place by means of a nut (not shown). down over raised portion II, substantially cover- Center contact 3 now may be bent y ing the open end of the counter sink I2. A lamp 34 is screwed into the socket and the mounting fis complete.

A mounting of this type has many applications but I iind that it is particularly desirable where a lampvis to be mounted on the inner wall 31 of a refrigerator 36 (Fig. 5)'wh'ere moisture after it passes through the inner wall seriously affects the heat insulating material of the lining. Electrical energy is supplied to the lamp through plug- 38. As is common in the art the lamp circuit contains a door switch 33 which closes the lamp circuit when the refrigerator door 40 is opened and opens the circuit hen the door is closed.

-Modiiications of the particular arrangement whichl have disclosed embodying my invention will occur to those shlled in the art, so I do not desire my invention to be limited to the particular construction set forth, and I intend, inthe I appended claims, to cover all modiflcations which do not depart from the true spirit o! my invention.

What I claim as new and desire'to secure by Letters Patent of the UnitedStates is:

1. A socket member comprising abase, a shell contact mounted in said base, a shoulder on the inner wall of said base, a resilient cylindrical sleeve located around said shell contact and held in compression by' said contact againstsaid inner shoulder, said sleeve extending beyond the outer end'of said shell contact to engage a lamp inserted in said contact, a wall having a plurality of apertures therein, means to secure the socket to said wall, and a gasket'located-between said socket and said wall and having integral bushing members' adapted to surround conductors passing through apertures in said wall and connected to said socket.

2; In a lamp .socket comprising a base, a shell contact mounted in said base, a shoulder on the inner'wallof said base, a cylindrical resilient sleeve surrounding said contact and extending beyond' the open end of said contact, projections from said contact embeddedv in said sleeve and holding it in compression against said shoulder,'

a wall, means to. secure said base to said wall,

and agasket located between said base and said wall -andhaving integral' projections surrounding conductors connected to said socket.

FRANK o. DE REAMER

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