US1223417A - Socket. - Google Patents

Description

HERMAN G. PATE, 0F NEW YORK, N.

vom; N. Y.- n

scorer. f y REISSUED 1,223,417, spematipn'uf Letter ramt. Patented Apr. 24, 1917.

l p Application medIune 28, 1916., Serial No. 105,514. f To allwhomtmay concern.' l is the same in its general principle ofconl-r Be it known that I, HERMAN GQPAPE, of New York city, in the county and State of. New York, have invented a new and useful,

Socket, of which the'followingisa speciic'ation.l v One feature of vmy invention consists in arrangin the switch mechanism inthe circuit so t at. when the switch is open the screw shell is electrically isolatedthus eliminating liabilityl of in'uring a person while handling the'device W en the latter is wet.

Another feature is a bracket havin open slots to ide the slide and to permit ease of Aassein'lin and disassembling,the slide being refera ly held against sidewise movement y thesame spring whichconnects the slide and the movable contact.

Another feature consists 'in having .the bracket provide a supporting .surface for the movable contact member so that the latter will be maintained in proper operative position and'held against twisting or canting.

Another feature of my invention consists in providing a lubricant well or pocket adjacent to one or more of the fixed contacts of the switch mechanism.

` Other features `of my invention will be` pointed out below.

In the accompanying drawings: Figure 1 isza side elevation of a socket constructed in accordance with my invention, the outercasin or shell being omitted;

Fig. 2 is alan view of the inner side of the outer sectlon of the porcelain body hereinafter described; y

-Fig. 3 is a sectional view on line 3--3 of Fig. 1; I s

Fig. 4 is a section on line 4 4 lof Fi 3;

Fig. 5 is an elevation of the. end o the socket opposite to that shown in Fig. 3;

Fig. 3; e s

lig. 7 isa detail hereinafter described; an y v Fig. 8 is an elevation of the upper end of a lamp socket embodying the mechanism shown inFig. 1.

The lamp socket hereinshown compri/ses abody'made up of two' sections'l and 2 of porcelain or 'other' suitable insulating material which are connected by a pair of metallic struts 3 and 4. On this body 1-2 is mounted a circuit controlling switch which Fig: 6 1s a partial section on line 6-6 of' Y., ASSIGNOR T0 RALPH A. 'SCHOENB'EBGy 0F NEW switchshown and described in my co-pend- `525 struction and mode of operatlon as .the-

ing application Serial -No. 87,102, filed-" `March 27, 1916, and also a metallic screw body section 1 by means of screws 6 while the opposite end of said strut is made with a 8 formed in body section 2 and fastened to the latter by means of a screw 9. This strut 3 is tapped to receive a screw 10 by means of'whic the end of one of the lead wires of the circuit is fastened thereto.

-The stru-t 4 is fastened at one end to the body section 1 by means of a screw 11 4and at its op osite end to the body section 2 by means o a screw 12, said screw 12 also serving to fasten in position on said body section the usual center contact 13. This strut 4 is also tappedto receive a screw 14 by means of which the end of the other lead` wire of the circuit is fastened to said strut.

`'The body section 1 is formed upon its periphery with two notches 15 and 16 through `whichthe lead wires extend to the screws 10 and 14.

Between the two body sections 1 and2 and fastened to the latter by meansof a pair ofvv l -90 screws 17 is a bracket 18 comprising two I posts 20 formed with openy slots 19 withiny which is slidably'mounted the actuating member l21 of the switch mechanism. Actubody section. The screw 25 is arranged upon the opposite side of the pivot stud 24 from screw .9 and the movable contact member 23 when swung on stud 24 moves into and out of engagement with the two screws 9 and 25 simultaneously. As additional means for laterally extending 'arm 7 occupying a notch .i securin` the. screw shell to the body section 2 j provide another screw 2.7 extending through said body .section and having threaded engagement with a nut or block 28 which also clamps the flange 27 of shell 5 to said body section., j 1'! When the movable contact memberv 23 1s in lengagement with the two screws 9 and 25 the circuit `is closed and is traced as fol' lows 'z-From strut'3 with `which one of the leadwires is connected by screw 10, through arm7, screw 9, .member 23, screw 25, to

screw. shell 5;; thence through the llamp mounted in said. shelll back to the .center contact 13 from which it continues through screw 12 to strut 4 with which the other lead wire is connectedby means of screwy 14. It

- hole in thefremovable. contact 23 and beyond' j prises a coil 29 from which project two legs 30 and 31. The -leg 30 extends through a the inner side` of the latter into a slot 3 2 formed in the base of bracket 18 concentric i withv stud 24, while the leg 31 Vextends around and `under actuating slide 21 with the extremity thereof occupying -a hole 33 formed in said slide.

The stress of spring 22 serves. to yieldingly hold the actuating slide 21 at the limit of its movement in one direction or the other with one vof a pair of stop lugs 34 provided.

on said slide, in engagement with bracket 18, and to yieldingly hold movable contact 23 at the limit'of its movement in one direction or the other, the swingingmovements of said.

member in both directions being limited by its engagement with the posts 20 of bracket mechanism.

as` grease.

.and 'leaving thev heads of screws -9 an j tendto suck the softened grease up onto the 18. The spring 2,2 also serves the important function of holding slide 21 within the slots against sidewise displacement.

The ends of the actuatin slide 21 are provided with buttons 35 an 36 of insulating material which may be differently colored so position .will serve to indicate open and closed condition of the switch A feature of' my present invention of ractical'importance consists in providing a lbbri'cant well 37 adjacent the head of each screw 9 and 25, each well being hereinv shown as an annular groove surrounding the head of its screw and filled with a lubricant such current warms the screws 9 and 25 thus softening the grease while the quick snappy movements of the contact 23 in approaciing 25 tops of said heads thus; maintaining the wearing and contacting surfaces of the` screws and member 23 vrell lubricated but vcompact than heretofore, but the leg 30 may` be madeto engagethe member 23 nearer the pivot of' the latter which improves the action of the spring and of the member 23.

"It is customary to form slots 40 to receive fthe push buttons 35 and 36 in the 'metallic When the circuit is. closed the housing41 within which the partsdescribed are arranged in `order thatthe body 1-2 with its screw shell may be slid .into said housing, and another feature of my invention consistsin providing the body section 1 with apair of diametrically opposite lugs 38 and 39 which occupy said slots 40 to close the outer ends of the latter and hold the body 1- 2 against rotative displacement within the housing 41 thus relieving the push buttons of this duty.

The described mode of lubricating the .switch mechanism has the advantage -that the contacts are not overdosed with lubricant and the latter can not become dry and coat the contacts and thereby act as an insulation as heretofore. In time vaseline and other lubricating material become sticky and dry and gummy, the' result being that the electrical contact becomes poor and sometimes spoiled entirely and by sinking a groove adjacent to the contact and putting lubricant in the groove, the lubricant will when the switch is operated draw up or, suck up the lubricating material in moderate quantities as desired and thereby keep the contact surfaces continually lubricated.

What I claim is:

1. A socket comprising a screw shell; a movable contact;h and a fixed contact cooperating with the movable contact, said ilel contact being directly connected to the s e 2. .A socket comprising a body of insulatin material; a screw shell mounted on said ody; a movable contact; and a fixed contact coperating with the movable contact, said fixed Acontact being directly connected to the shell. V

3. A socket comprising a body consisting of two separated sections of insulating material; two struts connecting said sections; means for connecting one of the lead wires to one of said struts and the other lead wire to the other of said struts; switch mechanism mounted between said sections, and comprising a stationary contact which also vserves to fasten one of said struts to one of said sections.

4. A socket comprising a body consisting v of two separated sections of insulating material; two struts connecting said sections;

of two separated sections of insulating ma- 'tions by said contact.

means for connecting one of the lead 'wires to one of'said struts and thelother vlead wire to the other of said' struts; switch mechanism mounted *between said sections, and

comprising Aa p a'ir'of stationary contacts, one of said contacts serving to astenone 'of the strutstoone'. of said sections and a` screw shell fastened to one of said sections by th other of said stationarycontacts. o

5. A socket comprising a' body consisting terial; two struts vconnecting said sections switch mechanism mounted between said sections and compr1s1ng a stationary contact;l

to one of sald secand a screw shell fastened 6. A-socket comprising a body-consisting of two separated sections of insulating material; conducting means holding said sec-- tions together; 4and means fastening said holdingmeans to 'said sections including a said member, said spring preventing trans-v stationary contact; and a movable contact coperatin with said stationary contact.

7. A soc et comprising switch mechanism havingv in combination an actuating slide; a bracket -to guide the slide longitudinally and formed-to prevent transverse movement of the slide in one direction but open to permit transverse removal in the opposite, direction; a movalble `contact member; and -a spring actuated by saidjslide and actuating verse movement of vthe slide in said opposite direction when the switch is assembled.

8.-'A socket comprising switch mechanism having 'in combination .an actuating s lide; a. bracket formed with a pair .of o en slots j extending transverselyof saidide and y.

guiding said slide in its' longitudinal movement; a movable contactv member; and a ,spring actuated by said slide and actuatingsaid member, said spring preventing transverse movement of said slide in the direction of the open ends of said slots.

, 9. In a socket the combination of a body of insulating material; switch mechanism 'mounted thereon comprising a movable conltact having a flat portion,an actuating slide forsaid contact, anda bracket secured to said body on which said contact and slide are mounted, said 'bracket being provided lwith a fiat portion which engages the flat or said contact,. and a bracket secured to said body on which said contact and slide are mounted, said bracket being provided with aflat 'portion which engages the flat portion of the movable contact during movement of the latter and supports said contact against tilting land provided withj guiding portions for said-slide.

1 1. A'socket comprising a body consisting of two separated sections of insulating material; ,two struts connecting said sections;

switch mechanism 'mounted between said sections and comprising a stationary contact; and a screw shell fastened to one of said 'sections by said contact. Y

vrnanisnalia G. PAPE

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