US2424528A

US2424528A - Electric socket

Info

Publication number: US2424528A
Application number: US520507A
Authority: US
Inventors: Henry W Wild
Original assignee: Scovill Inc
Current assignee: Scovill Inc
Priority date: 1944-01-31
Filing date: 1944-01-31
Publication date: 1947-07-22
Anticipated expiration: 1964-07-22

Description

July 22, 1947. H. w. WILD v ELECTRIC SOCKET Filed Jan. 31, 1944 2 a I I B m N2 3. hr I I 1 1k 4 .I. H a 2 If? my I 1 m n H r0 fl il 1%: I n1 2w: 3

Henry Patented July 22, 1947 UNITED STATES PATENT OFFICE I lam l me. 1 eie re KE Henry W. Wild, "Waterbury, Con nl, as'signor to Scovill Manufacturing; Company, Waterbury, Conm, a corporation of Connecticut ApplicationJani ary tl, 1944; serial No 52 0,50 7.

numerous applications in the electronic arts and various other'electrical devices requiringq ui'ck detachable electric circuit connections; V

The particular sockets that are involved in this invention are those that are used in connection with electrical devices employing spaced insulation plates to which the opposite'endsof the sockets are permanently anchored," and which sockets serve as a means for holding the plates in spaced relationship. Heretofore; sockets of this character have been made of solid rod or bar stock which itself is quite "expensive'and which involves a relatively slowmachining open ation as well as considerable waste of materials in lost turnings, all of which add materially to the cost of making the sockets. sockets that are made fromrod stockrequire leaded alloys for machining purposes which is not considered suitable as the ideal material for riveting as is necessary in anchoring thecppos'ite ends of sockets to their respective bases It is the principal object of this invention to overcome the above diificulties andexpenseby making the sockets entirely from sheet metal blanks drawn up into tubular eyelet form 'by slice cessive drawing operations and providing shdul der and beaded portions that cooperate with the insulation bases in making the final perina nent assembly thereto. r i 3 Sockets of this character are made of various brass alloys suitable for drawing operations and having the normal electrical conductive properties. In some applications, however, a'maximum degree of electrical conductivity is'required-which is attained by coating the sockets: with a silver plate. Also in the units which thesesockets are placed provision is made to connect a current conductor directly to one end of the socket by a soldering operation, and it is another object of the invention to provide a means to preclude acid, soldering flux or other injurious materials from entering the socket chamber when the electrical connections are being made: This is accomplished by having the reduced neck portion formed with a closed end drawn out considerably beyond its normal length, and of then inverting the closed end into the reducedneck portion, and thus provide for a leak-proof recess in thatsend of the sockets into which the end ofa current conductor, maybe soldered. 1 The full nature of this invention,. 'alongcwith Furthermore, 1

I the other objectsand' various advantages thereof, will be more apparent from a consideration of thefollowing description when read in connection with the accompanying drawing in which- Fig. 1 shows two of the sockets as they appear attached to fragmentary :portions of their supporting insulation bases, with portions of one socket in'section to show the interior construction and also showing in dotted outline the complementary connecting member supporting pushin resilient plugs.

Fig. 2 shows a sectional view through the socket on an enlarged scale as it appears prior to the inverting of the closed end of the reduced neck portion. Fig-131 a similar view to Fig. 2 but showing how the closed end of the restricted neck portion is inverted into itself, and

Fig. 4 shows the socket in section as it appears in itsfinal state assembled to its supporting insulation bases.

Referring now'to the drawing in which like reference numerals denote corresponding parts throughout the several views, numeral IE! designa'tes the electrical unit in which there are employed spaced insulation plates H and I2 to which numerous sockets or jacks [3 may be attached and serve as pedestals to hold the plates in spaced relationship. The unit ID is generally referred to in the trade as a multiple jack. A complementary plug member M carries a cor responding number of resilient plug pins l5 which are supported in the plug member in properly aligned relationship to the sockets and suitable electric connections l6 may be made to the individualpins in the usual manner. Thesocket members or jacks 13 within the teachings of this invention are made from a single piece of sheet metal by successive drawing operations to provide for a tubular body portion I! encompassing asocket chamber [3a for the reception of the plug pins l5 and initially having an exceptionally long drawn tubular neck [Bat one end joined integrally into the body portion .H-by a connecting shoulder l9. The outer end-.015 the neck I8 is closed as at 18a and the socket member l3 in this form is as shown in Fi 2.

In order to provide a suitable recess in the socket members 13 into which the terminal ends of electrical conductors .20 may be fitted and soldered, and which recesses will be sealed off from the socket chamber l 3a without the need of extra parts, I accomplish this by inverting the closed end of thetubular neck 18 up within itself. Specifically this is shown in Fig. 3 wherein the closed end Illa is forced into the tubular neck l8 and becomes the base of an inverted socket 2| having a double surrounding wall. The manner in which the inverted socket 2| is formed assures that this socket will be completely sealed from the chamber 13a so that no acids, soldering material or other injurious m t r al? will oo lt ll et h osois chamber 13a coincident with making the electrie cal connections.

As pointed out in the objects of this invention}; in applications where it is desired to hays maximum electrical conductive efficiency in the socket members l3 they are silverplated;itheing, essential that a particularly goodsilverplatelbe provided on the interior of the body porti'onwhere the actual electrical contact is mal c ltilillz 43$ plug pins I5. In order to assure that the clean ing solution and electrolyte can be properly--cat... ried into the socket chamber l3 and drained heref om it, is ho osootya o hsveslllie ls sta ag 'olliaooht th has? o h ot h p?! my bf? ooolh ll orir lr ih holes. 2 h

or. pad or drilledinto the I claim:

1. A socket for electrical devices comprising a tubular body shell having a reduced hollow neck portion with a closed end, the closed end of said neck being inverted into the hollow of said neck with its adjacent Walls in substantially intimate contact with each other, said inverted section gt'wi F9 Q IQ @Wfil g 3 the oll'ow' portion of said shell.

2. A socket for electrical devices comprising a tubular body shell having a reduced hollow neck pgrtion with a closed end, said neck portion being integrally connected to said shell by a connectins-shoulder, the closed end of said neck being inverted-into said neck portion and in intimate contact with the interior neck wall, said inverted pgrtion serving -to seal the hollow of said neck from the hollow of said shell.

3.: A. socket for electrical devices comprising a tubular eyelet shell of drawn sheet metal having 12119 9?! 39 PQF i I W h, a 9 M ,end, k tion being integrally connected to aconnecting shoulder, the closed s d neck being forced up into itself to wa i e od hotti hf l helhs shtlth not i 2 s e ot-ahilhv l oo s W th the nook e lis oohl l rom. the ollow of Said A p ect g o o lm tohtih boat! 29 is hones? eyelet lls ioooht he orho lto hth one hot y. -;hsosh t lo -ol o hool. oo loo com si o ion ll ahdnroto hlolv t is os l te o elz l sr yele shell o or W h o metal ha wardl of h ody wallton ble Wall thickness which bead isreniq crib d di tanc from tho ohsloi the hqs lt, purnoseot t h oh wil o hoatlat r he ma ne in whl h tho ,soohot molhllst is ma be assembled to the spaced plates [Land l;

ho t how i Fi l- Sh lhoolh the lot which s th ower nlatoiot he ("hi U9; s 329" vided with a suitable aperture gii th ugh which th tllhular neoklli may ho' hso d to shedion wh e th shou der las atsosa t the jacent face of the base l2. The pro ecting port on of the no k L wh hi nova l o-llhlsilaH sect o by eason oi helhv rtsdte s 2.1 may be fiaro o diam trica y increased ze at l b. r ve in thatensi l the socket home: 1 nently to, its pectiv hasc.-.,

The opposite end i hcsooketlhemhor l t attached to, the her insul ti n platev ll M1 1 happens to be his lsplosilro V o som at reater thickh sstheh th ploteJZl Thopla o, ll isprovided with. a reqllis ton lhher of; one has 26 of a si e t ,v receive the tu ular hoqyip 11 or theso ket m ber, Hit-a id aool ht rs l i. recessZ'I is aligned with each openin 5.; "H16 open end of the, socket member. is assembled through the opening 26, to a position where the bead 24. seats against the adjacent face;of said plate II and the outer end of the. socket maymbe flared or spun over as at 28 within the-recess 21 to anchor or rivet that end of said socket mem her [3 permanently to said plate ll.

When the proper number of sockets are assembled into the electrical unit 10, whichis usually then known as a multiple jack, the electrical con:- nections 2!} may be made in the usual mariner by soldering the exposed ends of the conductor-wires 20 into the inverted recesses 2| within the tubular neck l8 as shown in the sectionalized portion of Fig. 1.

While the fiorm of-the invention herein shown and described embraces a prefe'rred embodiment of the same, it is to be understoodthatthe corfstruction may be varied as to mechanical details without departing from the spiritof th invent tion and the scope of what-is claimedl dnced hollowneck portion with a closed end, .1 2 tha be n i ra l o h od to yt on ect n uld h closed (1 neck being forced up into itself to Qt 4 P IWQFQQ9S Wi hi the ho wit ubl ur ou din wol a d the w h rece ss seals the latter from the holeyelet shell.

' As hr t ol f m hh aoture a n w ll 1o hellv having a rod l ed o ow ook p tto said shell by a connecting shoulder, .1 1? Shorts los re o m as an i t part i sa ll oh Po t o and fitted to nt mat thtt w th tho inter or f s ld n ok po ion w t its $19. 9, o lllii hwar ly r a ive he o to ro de for an open endrecess in said neck portion that is ooalotlt tomtho h low f aid e l- As art c e of manu a tur a t in Walled uhlll tshol havi g a d ed. holl w h k ion joined: o. sa h l by a conn i shou lonllllz$llhll d l sure d snosod in ai k portionby aiorced fit with its closed end inwardly olat. Y to s i ooh o tion and t outer end joined integrally to the outer free end of said neck portion, said cup shaped closure providing in, Q fill l d recess of ouble. W thickness in said neck; portion that is sealed from the hollow. o sold h l- '7 As an article of manufacture, a tubular eyelet shell comprising an enlarged hollow tubular bodyportion and areduced hollow neck portion having an outer closed end, said neck portion being joined to said body portion by a connecting shoulder, the closed end of said neck portion being inventedv into said neck portion in intimate contact vwith the interior thereof and providing tor/a closed end recess in said neck. portion completely, sealed from the hollow. of the body portion.

8; A socket member. adapted to be secured in an .openingin a support base, said socket comprising a tubular body shell having a reduced hollow neck portion with a closed end, said neck portion beingiconnected to said body shell by an integral shoulder, the closed end of said neck portion being inverted intosaid neck portion in intimate contact therewith and providing for a recess in said neck portion of double wall thickness, the remaining neck portion being of a length greater than the thickness of said support and adapted to be inserted into the opening of said 5 support base up to said shoulder as a stop, and the projecting end of said neck portion of double wall thickness being deflected outwardly as a means of riveting said socket member to said support base. 10

HENRY W. WILD.

REFERENCES CITED The following references are of record in the 15 file of this patent:

Number UNITED STATES PATENTS Name Date Kosha Jan. 11, 1944 Starr Apr. 12, 1932 Keefe Dec. 3, 1935 Kimbell June 19, 1934 Franke Mar. 10, 1936 Gilmore Aug. 5, 1902 Woods July 2, 1940 Eby July 21, 1942 Del Camp June 21, 1938 Gagnon Feb. 12, 1929 Brockway Nov. 20, 1917 Brickman et a1. Sept. 14, 1937 Miller Dec. 1, 1931