US981242A

US981242A - Electric lamp-socket.

Info

Publication number: US981242A
Application number: US41634008A
Authority: US
Inventors: Reuben B Benjamin
Original assignee: Benjamin Electric Manufacturing Co
Current assignee: Benjamin Electric Manufacturing Co
Priority date: 1908-02-17
Filing date: 1908-02-17
Publication date: 1911-01-10
Anticipated expiration: 1928-01-10

Description

R. B. BENJAMIN. ELECTRIC LAMP SOCKET. APPLIOATIOH FILED FEB. 17, 1908.

981,242. l l Patented Jan. 1o, 1911.

2 SHEETS-.SHEET 14 R. B. BEEJAMIN.'

ELECTRIC LAMP SOCKET. v APPLIGATIGH FILED im. 1908.

981,242. v Panama Jan.10,1911.

2 SHEETS-SHEET 2.

yis

unirsi) s'rarns PATENT cerros.

EEUBEN B. BENJAMIN, OF CHICAGO, ILLINOIS, ASSIGNOR 'IO BENJAMIN ELECTRIC MANUFACTURING COMPANY, 0F CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

ELECTRIC-LAMP SOCKET.

Specification of Letters Patent.

vPatented Jan'. 1o, 1911.

Appiicaiior. and February 17,1903. seriai Na. 416,340. p

To all whom 'it may sonori-n:V

Be it known that I, Rennen B. BENJA- Mus, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, havev invented new and useful Improvements in Electric-Lump Sockets. of which the following is :i full, clear, concise, and exact description, reference being had to the accompanying drawing, forming :i part of this specification.

My invention relates to elect ric-lamp sock ets, and has for its object un improvement inthe structure of such sockets, whereby a series of lamps may he arranged in a row with pipe-connections between the adjacent sides of the sockets, so that all of the wiringr will be excluded from View by being housed in said connections. l accomplish this by providing the casing of the socket with lateral hollow extensions through which the supplywires p ass, and whereby it is supv ported. The insulating base that carries the lampengaging contacts has the binding screws ocated in channels across the top leading from one extension to-the, other when the base is in position on 'the casing. In this way the supply wires are led across the casing through the channels`v thus making the connection between the binding screws and the wires :i simple, easy matter. Furthermore, I provide a cup or cover for the casing, so shaped as to be firmly sented upon the casing and locked thereto preferably without the necessity of rotation.

Referring to the drawings: Figure l shows an arrangement of linups, as in :i show-case, made possible by the use. of my improved socket; Fig. 2 is a arily erosssectional view on line 2,-2 of I* ig. 3; Fig. 3 is a top View of the socket with the cap rerum-'odg Fig. 4 is a sectional view taken on line 4 4 of Fig. 3; Fig. 5 is aview, partly in section, of my socket having a modified form of capwhereby the socket. may be directly secured to a support, such as a wall or 'ceiling; Fig. 6 is a fragmentary detail view showing a preferred form of locking device on the socket for securing the cap thereto.

The shell-contact 1 is secured to the base 2 of suitable instituting' material (as porcelain for instance) by means of the screw 3 passing through the opening 3 in the. base. ofthe screw rests in the circular recess 4. A screw 5 passes through the opening 6 in the opposite side of the base, engaging at The headA one'cnd the shcll-contact 1 and at its other end 'the conducting strip T. slotted recess S in the central ridge t) permits engagement of :he strip 'i' with the screw 5, as shown in Fig. 3. A bent plate l0 of metal passes through the slot 11 and is held in place. by the central screw 12 extending from the re,- cess 13 through the opening 14, and engaging the transverse portion 15 of the plate l0. This transverse portion l5 fornis the center contact of the socket. A pair of binding screws 1G and 1T are located in the channels 18, and connected, respectively, with the free end of the strip T, and with the transverse ortion l5 of the plate 10. In other words, Binding screw 16 is electrically connected with shell-contact l, while binding.,r screw 17 is electrically connected with center contact 15.

I provide a casing 19 for the base, an insulating sleeve 20 being interposed to pre-` The casing is furnished with u pair of late eral extensions, .whereby it assumes what might be termed a T-shaped form. In the instance illustrated, these extensions consist of a pair of bushings secured in cach of the openings 2". For convenience of design and manufacture Iprefer to make the openings in the rectangular shoulders or projections 23', althoiwh this is by no means essential. The husiings are shown as interiorly screw-threaded at 24, so that a pipe or conduit 24' may be screwed therein for supporting the socket. However, any; method may be resorted. to for ellecting 'proper connection between the extensions and the pipes. Rotation of the pipes in t'- e bushings may he prevented b v set-screws Also, rotation of the base in the socket n. fr be obviated in any suitable way, as, or .a stance, b providing on the base a laiteial lug 25 w ich is held between :i pair of in wardly bent projections 26 struck up on th casing. The supply wires 26 und 2T cntcr through one of the hollow extensions and are led out through the other. It will be observed that n pair of channels 18 cross the top of the base, so arranged that when the base is in position in the casing these channels lead from one of the extensions to the other; whereby the supply wires are accomnceted to the 'hinding serens iti and 1T situated in the channels` as ahore deserihed.

In Fig. 1 I have illustrated an arrange- .m'ent ol lamps suspended troni my novel -forin of socket. v(lne end ot a pipe 2S 1s set'ured to a support S29 on the wall 330 tor, yit nngrht he the side ol" :i show-ease or displaywmdtnv). while the. other end of the vpipe is secured in the adjacent extension :'22

of the socket. The other extension ot' the easing` is connected hy means of a second pipe 2S with the adjacent extension ot' the next sof^.l{et,-aud so on tintil a sutlieient.

number of soelt'ets has thus heen linlt'ed together by direct rigid connections between adjacent extensions ot' eonseentive soeltets. The last of the sockets in the series is, of

course, secured to the opposite wall hy means of a pipe. As an additional support 1 'socket exposed wires are oliriated, whereby an appearance of pleasing neatness is iinparted tothe fixture, in addition to its firmness and stability. It isof course. evident that; various other arrangen'ientii of lamps ie may be eti'eeted with my new soeket,-t

illustration in Fig. i lit-ing given merely as an example. Thus. for instance: the sockets might be Connected together in rectangular outline, inwhich ease. the corner soehets vwould have then' extensions not. oppositely (lispised but at an angle ot' 90". The ehannels on the hase would. naturally, he modified aeeordingly. l would therefore have it understood that sue-li a modified form of socket, that is. one with its extensions at. 90, is eontprehended in certain of the appended claims. j The to of the easing is covered with a zap 34. n order that this cap ma)vv properly lie plaeed upon the easing, l provide it with eutlaway portions 3.', in alinenient with the hollow extensions and fitting' snugly over the shoulders .ll'. Although l have shown the can as terniinatin;r about naif-way on the et-'iiudrieal enlargement- 35' of the easingr. it is elear that thisprecise arrangement is puit-ly u nialtt-iA of design, and that the eap might as well extend a lesser distante-e over the casing,'or completely enihraee the sides of the .shoulders 'i'. ln either ease, the eap ould encircle. the easing in :1 plane. intersecting the (extensions.

Any desired forni of loeking,r scheine may he rey'irted to for seein-ing the eap and easin; lr together. Fig. 6 shows in perspective a loehiihgr device. The siring tongues 3G, strnrk up from the easmp upon opposite sides thereof hy punching, are provided -tion. with a easing provided with lateral holl niodated in said channels. and readily eonf with slightlbv turned-np eorners 37. The cap has a hollow bead 2th at its opening, so that when the rap is t'oi'eed down upon the ing the turned-up eiirners 3T will sprintf into the hollow of the. head, as shown iu lig. 4, thus preventing \i'ithdra'.\'a1 of the cap. T0 remore the saine, it is only neeessary to press against the lingei-pieees 39 on the tongues litt, whereby the projecting corners` 3T are withdrawn t'ronilhe hollow of the head. If 75 desired, the eut-away portions 35 on the cap may he made of sttllieient width to perintt substantial rotation of the cap on the easing. so that a lot-king eontrivanee in the form :if a bayonet-slot might be used. [Iowever, I prefer to use a loelring arrangement iihereby the parts may he secured together h y a direct thrust. In this way I can make the eut-away portions 3:3 tit snugly over the` shoulders of the hollow extensions, thus giv- B5 ing an appearanee of neatness and empactness to the structure. Also, I may use a tilling pieee. i0 t3 cover u the space formed by the shoulders Q5 an lett exposed hy the Cap, asshown in Fig.' 2. 90

Although I have shown the top of the cap as dome-shaped, any suitable contour may be diven it. In certain instances it mieht be t esirable to )rovide the cap with a at top, as indicatedl socket might he direetl)r secured to a support, such as a ceiling, by means of a screw 4i passing through the cap into the support.

llaving thus described my invention, what I claim as new and desire to secure by Letters lPatent, is-

1. An electric lamp socket comprising a easing provided with a pair of interni hollow extensions throu'fh which the supply wires may pass, a hase, lamp-engaging eontat-ts earried then-hy, said hase havmf a pair of ehannelson its upper side extent` ing from one of .said hollow extensions to the other, a binding terminal in each of said channels electrically connected with one of said lamp-engaging contacts, and a cap normaily covering; lsaid channels' and made removable t'o expose said binding terminals.

ln auelet-trielanip sorket,theeotnbination with a -asiingr provided with lateral hollow extensionsx through which the supply wires pass, ot' a eap for the top of said 'ae-:- iiig, having eut-away portions in alinement with said extensions to )eimit the cap to eneirele the easing in a. plane intersecting the extensions, and eoiperating means 0n sail cap and easing for lof-king the parts together.

3. In an eleetriclamp socket., the combinalow extensions through which the stip ily wires pass, of a cap for the top of said casing having cutaway portionsA in alinement with said extensions to permit. the eap to encircle t e easing in a plane intersecting the exten- 130 in Fig. 5, in order that the 95 i Y l n i i i l and casing for low extensions through which-the supply sions, said cut-away portions fitting snugly over said extensions whereby substantial rotation of the cap on the easing is prevented, and spring-means for locking-the cap to the casing when the cap thrust down over the casing.

4. In an elcctricdaniprsocket, the combination 'with ay .asiug provided with lateral hollow extensions through which the supply wires pass, of a cap for tho top ot said casing having ent-away portions in alineinent with said extensions to ierniit the cap to eucircle, the casing in a piane intersecting the extensions, cooperating means on saideap and casing for locking the parts together, a base in said casi11g,shell und center contacts carried liv said base, and a pair of binding screws on theitop of the base for connecting said contacts with the supply wires. l t

5. In an electric-lmnp socket, the combination with a casing provided with lateral hollow extensions through which the supply wires pass` of a cap for the top of said casing having cut-away portions in alinement with said extensions to pei-init the cap to encircle the casing in a plane intersecting the extensions, eotierating means on said cap llocking the parts together, a. base in said easing having channels across the'top thereof leading from one extension to the other, shell and center contacts carried by saidbase, and a pair of binding screws in slid channels for connecting said contacts with the supply Wires.

6. In an electric-lamp socket, the combination with a casing providedwith lateralholwires pass, of a cap for the top of said casing having cnt-away portions in alinement with said extensions to permit the cap to encircle the casing in a piane intersecting the1 extensions, said eut-away portions fitting snugly over said extensions whereby substantial rotation of the cap on the casing is prerentefli. spring-means for vlocking the cap to the casing when the ca'p is thrust down over the casing, a base in said casing, shell and center contacts carried by said hase. and a pair of binding screws'on the top of the base for connecting said contacts with the sa ply wires.

i?. In an electric-lamp socket, the combination witha casing provided with lateral hollow extensions through which the supply wires pass, of a. cap for the top o said casing having cutaway portions in alineinent with said extensions to permit the cap to eneircle'the. casing in a plane intersecting the extensions, said cnt-away portions fitting snugly over said extensions whereby substantial rotation of the cap on the casing is prevented, spring-means for locking the cap to the'casing when the cap is thrust down over the easing, a Ahase in said casing having channels across the top thereof leading from .one extension to the other, shell and center contacts carried by said hase, and a pair of binding screws in said channels for connecting said contacts'witli the supply Wires.

8. An electric-lamp socket7 comprising a casing provided with lateral openings, a bushing secured in each openinv whereby the supply wires .may enter tie casing through one bushing and pass ont-through the other, a base in said casing, shell and center contacts carried by said base, a pair of binding screws onthe t'op of the base for connecting said contacts with the supptv wires, a cap `iior the top of said casing having cutaway portions in Valinenient with said bushings' to permit'the cap to encircle the casing in a plane. intersecting the bushings, and c0- operating means on said cap and casing for locking the parts together.

9. An electric-lamp socket. comprising a casing 'provided with lateral openings, a bushing secured in each opening wherebythe supply wires may enter the casing through one bushing and pass outl through theother, a base in said casing haring channels in the top thereof leading from one of said lateral openings to the other. shell and center contacts carried by'said hase, a pair of binding screws on top ot the base for connecting the contacts with thel supply Wires, a cap for the to of said casin having cut-awav )ortions in alinenient with said bushings to permit'-v the cap 'to'eneircle the casing in a plane intersecting the bushings. and coperating means on said cap and casing for locking the parts together.

,Tn witness whereof, I'have hereunto subscribed my name in the presence of two witnesses. r

REUBEN Bt BENJAMN.

' li-Titnesscs:

Anrmjn Il. Bom'rcnnn,

L. HorniNs.