US1928657A - Electrical socket - Google Patents

Description

Oct. 3, 1933- R WOLFE 1,928,657

ELECTRICAL SOCKET Filed June 27', 1929 I I \4 2 I E ,3 $7

' f1 Er l 2! 27 O 23 28 T 3 30 2; gz E 3 iE l E&;E5

ARCHIE WOLFE iNVENIQR ATTORNEY Patented Oct. 3, 1933 Myiinvention relates-to improvements iiielecr standard-screw rim'electric. light plug.- or lamp without screwingthe latter or said socket; and the objects of my'impro'vements are; first, to provide in such a: socket aemeans for assuring electrical connection. :between the :center'. contact of; .-.the

y latter iand-srthez .c'enter contact "of any standard "10 screw rim plug or lamp that may baconnected to 'said rsocketpby vertically reciprocatingsthecenter contactmf thelatter; second,: to zafiordafacilities in suchasocket for bperatinga vertically movable centerzcontact' in .combinationrwith' 'a means for attaching and a-meanscfondetaching the screw rim of any standard screw rim plug orlamp'without screwing zfor depressing said-center contact aicertain' distance beforesaidplugl or. lamp. can be attached and for elevatingzsaid center contact a suitable distance under spring pressure after-said plugor lamp has;been attached;-.-third, to provide facilities foroperating-all-of the mechanism of said socket by a single means on'the'outsidaof the latter; fourth,: to produce a socketthat may be 5 readilydesigned'for use in dining room chandelier fixtures inrthe home and for electriclighting fixtures in-general; and fifth, .to'produce' such a socket adapted to carry larger electric currents than a Cam lock contraction socket described in my Patent No. 1,810,455, issued :June16, 1931, and of lower cost manufacture than a. Simplex contraction socket described in my Patent No. 1,770,377, issued July 15, 1930.

One form of my invention is illustrated in the 5 accompanying drawing, in which, Fig. 1, is a view of the invention from a point vertically above the center of its upper end; Fig. 2, is a vertical sectional view on the broken line 2-2, Fig. 1; Fig. 3, is a plan view of the upper side of the cam 34, and its insulation handle 33, aflixed thereto; Fig. 4, is a vertical sectional view on the broken line 4 -4, Fig. 1; Fig. 5, is a view of the upper end of the lower section 3, of the insulation body, with all mechanism removed and detached from said invention; Fig. 6, is a view of the cylindrical shell 1, detached from said invention; Fig. 7, is a view of the outer face of the lever jaw spring 19, as detached from said invention; Fig. 8, is a view of the inner face of the lever jaw 9, as detached from said invention; Fig. 9 is a perspective view of center contact and clamping jaws; and Fig. 10 is a side view of Fig. 3.

Similar numerals refer to similar parts throughout the several views.

The shell 1, upper section 2, of the insulation I $128.65? aELEc-TaIcAn SOCKET.

i N. J.

- afnp iicatianumne'zz'isgs. S erialiNo. 374,19 a

body-and lower section'3, ofthe insulation body are "clamped-together by. the metal tie bolts 4,;and .5. Said. bolt 4,=.is.threaded to a nut countersunk into the bottom of said section 3, and boltr5; is threaded 'to thefshell terminal post 6. Said shell :1-, i's=adapted=to accommodate the screw rim of any'standard screw.rim-electric light plug orslamp .without screwing and is provided with the bearingraperturesfl, and -8, which serve as fulcrum-bearings forzthe lever jaws 9, andlO, respectivelmii The inner face:of'each'of said jaws is-provide'd near. its upper end with ribs or'threads 'whichiareadapted to engage the threads on the .screwirim -of the standard plug or lamp.-- The shoulders .11,:and-12, on said jaws '9, and 10, 'respectively;:-limit the downward movement of the latter and the flanges 13, and 14, respectively, on said =shell"1','limit the :u'pwardmovement of said jaws after saidsocket is assembled.

--Said jaws 9, and 10, project downward through saidapertures'Land 8,- andithe apertures 15, and 16;:insaid section 2,-:and into the cavities 17, and 18,- respectively, in said section 3. The lever jaw springs-19, and.20,::-are attached to said'jaws 9, andxlO, respectively; and tend to keep the latter inthe innerposition-as shown in Figs. 1, 2, and 4. ':..:The. spring metal center contact2l, projects downward through the aperture 22, in said section 2, and into the slotted cavity 23, in said section 3, where-itslower end is secured to said section 3, by the metal-=screw 24, which also secures the center contact terminal post 25, to said section 3. Said center contact 21, is provided with the flange bearings 26, and 27, to which is hinged the upper end of the insulator 28. The lower end of the latter is hinged to the metal guide 29, which is provided with the rectangular cam apertures 30, and 31, and is vertically reciprocable in the slot 32, in said section 3.

The insulation handle 33, is rigidly aflixed to the outer end of the horizontally reciprocable metal cam 34, which is provided with two prongs which straddle said lever jaw 9, and project into the cavities 35, and 36, in said section 3, and into said cam apertures 30, and 31. The inner ends of said prongs are provided with a similar cam surface sufficiently inclined from the vertical to engage the lower ends of said apertures 30, and 31, and actuate said guide 29, and consequently said insulator 28, and said center contact 21, downward a certain distance against the spring tension of the latter when said cam 34, is manually moved inwardly by means of said handle 33. And when the latter is released the spring tension of said center contact 21, elevates the upper end of the latter, said insulator 28, and guide 29. And the latter acting on the cam surfaces of said prongs moves said cam 34, and consequently said handle 33, outwardly to their original position. The outward movement of said cam 34, is limited by the stops 3 7, and .38, which projectirom. said spring 19, into-{the-slots 39, and agreement/ arn said. cam 34, and the inward movemeht'of the latter is limited by said lever jaw 9. c W

The insulated handle 41, is secured to said lever jaw 10, and projects on the outside of said sec":

tion 3, through an aperture provided inth'e latterz:

The practical operation of the invent is briefly described as follows: Beginning with the mechanisnrrinithe position hand and moved inwardly-or ioward-eacli- 'other as far as they will go. During'thedatter rnove ment the handle 33, first moves the cam 34, into engagement with the: guide; 29 which lowers: or depresses the latter togethezawithe'thel insulator 28, and centercontact 2l,'a:maximum distance against the z-spring tension =of5: the lattena. :Said cam 34, thencollides with the leverijaw 9, requiring an additional-force. to be appliecllv on said handles 33, andALwbichsimultaneouslr-moves:the lever :jaws 9, and-l0, laway fromreach othenz a maximum -r-distanc 3 against: the-mensionmf the springs 19, and 20.--=.:A plug-or lampmaytmowlbe inserted in said:socket- 1,'asufar;as itwill go with gentle pressure. LSaid handles 33, and mare-then released, whichfirsapermits said springs-.dfi and 20, to move said jaws 9, and 10-, toward each other, securing the .latter..to the screw rim ofsaidmlug or lamp; and secondypermits the self contained spring in said center-contact:21; to elevatethe latter untiliitv collides 'andzmakes' contact withithe center contact of said plug orlampv' f1 To detach and disconnect saidplug orv lamp from saidsocket againrpress. said handles-33,:and 41, toward each other as-farasthey willgoiand withdraw said plug or lamp iromsaid shell" 1;. 5 The invention described herein-may be. manufactured and used by or. foruthe Govemmentzofi the United States .for governmental purposes without the payment .to me :of any royalty thereon. .w i 1 .H Iclaim: 1. In an electrical socket, the combination of a reciprocating center-contact having one end secured to the body of the socket, a vertically movable insulated base member supporting said contact intermediate its fixed and free ends, means mounted in the socket for securing an electrical appliance thereto, and means carried by the socket .fqr simultaneously operating said base ms b m gm Se n me l -B 2;" In an electriiial soketfth'e combination of a reciprocating center contact having one end -secured to the body of the socket, a vertically movable insulated base member supporting the eenteezcontact intermediate its fixed and free ends, means mounted within the socket for securing an electrical appliance thereto, means noriunallyaholdingi-thez clamping ends of said first as shown in Figs. 1, 2, and 4, the handles 33,,and, 41, are grasped by a thumb and forefingef'of one eratingthe =center=oontact support and moving the clampingerids of said attachment securing means to an outward position.

3- In ana'electricalrsocketathe combination of a movable center-.11: contact; eaaverticallyl movable insulated :base. member supporting: said contact, a'guide member provided: withzopenings; carried :by said base member, means mountediwithinathe socketrfor securingsanaelectricaliappliance thereto; and means engaging: in 'said openings" in-t'the guide membe1*. foroperating .zthe centeri contact and-with the attachment semiring-mea'ns for op- -eratingithesame.azi cit ;1;;;' ":2 15': 1-. 4. zarigzelectricalsocket, the 1 combination of :a ,movableicenter contact secure'dzat one'endto theisocket'gfa' verticallyzmovable insulated base 'memberzcsupporting the center rcontact intermediate its ends-,=means mounted within the socket for securing: an; electrical appliance-thereto, and :means extending without: thezsocket "\for engaging :with: the :base :membe'r and attachment securing means for their substantially simultaineous-operationu'; r w "5. In .anLeIectricaI-'socketpa' hody'membena mounted thereon; atmovablecenter conttact'secured atone end tothe socket,-a vertically movable insulated base-supporting the free end :of' the center contact, clamping membersi-ful cr'umed .throrighthe-shell, means normally holding" the clamping: ends .of said members within :the shelL -and 'slidable: means for-simultaneously depressing said contact and outwardly moving said clamping'ends. .2

' .c ARCHIE R. WOLFE.

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