US954117A

US954117A - Socket for incandescent electric lamps.

Info

Publication number: US954117A
Application number: US37393707A
Authority: US
Inventors: Julius K Lux
Original assignee: Pass and Seymour Inc
Current assignee: Pass and Seymour Inc
Priority date: 1907-05-16
Filing date: 1907-05-16
Publication date: 1910-04-05
Anticipated expiration: 1927-04-05

Description

J. x. LUX. '80mn ron INUANDESGENT Enno'mo Lure.

I AITLIUATIOI FILED HAY 1U, 1901. 954, 1 1 7.

Patented pr. 5,

.4 TTGHNE yffssfs I 'JULiUs ii. LUX, ois

SYRLCSE, 'NEW YORK, ASSIGNOE. T0 YSS r, SEYjIfiC-UR, NQM

i GF SGLVAY, NEW YORK, A CORPORTN.

eeoiie'r Foti iiieiiiiiziisciinr Erminio LAMPS.

954,11 g Spciiieaiiozi of Leiiers'ieatent.

.ppiication :tiled May 16, 1907. Serial No. 373,337,

.To i1/Z ivi/om 'it ning; ronrf'rn:

Re it linown that l. Ji'niiie K. LUX, :i etixen ot' the lii'iieil 'i-`\iiites, residing :it Syracuse, .in the eonnij: ot ,Oiioiitliigrzi find Stute ot New oi'li, have inientel new find i tor liieiinileseent Electric Lunnis. o li whivli the following' in ii specifi" riiiion. i

.My inwiii'ionrelates to snehets tor inminileseenl elet-trie hunne. iiiiil consists of :i new eonsl'i'nciion o'lx iliose parte. whereby the nie- 'tzillie i pini :ire supported :intl protected, ,that is. ol the sheet inet-.il inelosing' ezifie, the insnzitingl innnif thereto :ii'nltlie insulating bese on wliieli the inetnllie parte in Circuit A:life supported.

-- The importent iezitnresi o'l niy invention nre to foi-in the wip with iiiviirflly iii'i'neil lips. unil. the shell with eoi'i'esponiline nini'- -giniil'e'niile grooves toji'egislei' willi Siiitl lips` 4unil with slots :nliueent lo siiiil inziigni :intl in 'line with sind gi-wvex` lo engage willi sind lips when the shell iS pnelieil sli'iiifi'lit'lionie in the viii). ivliereliy tliiyehell in tirinluif nml positively seenseil to the eiii l iit ili'i'llie easily ilieengzigeil tlieieli'oni 'wl-ien lil'eriii'eil.

'llie Gzip .thingie 'ie also provided willi' zin` inwardly tiirneil lng; to register with the nsnzil 'enliirjl'eil ihiii'iib-pii-ee Slot in the x@hell to in- 30 Sni'e :i eori'evt poe'itioningg ot the Snell when il is to he Sei on the ezip.

the Shell in position n nil :i 4slieeizil vt'oi'ni ot insulating' linni, y i'oi' the een iilso shown.

The upper portion. o l the 'iiisn'liiting` holly or buse is niliiile of SiniilleiA liiinietei than .the

lower to periiiitezisy assembling' :intl easysepiiriition ot' the. enpiinil' Shell.A

herewith` in whieli the ieteienee'nnnierfils of the. tleSei-iption indicate the eroi-responding parte in all the tlgures.-

Figure l is ii. :troni elei'iilion of the socket.

with parts broken iiwiiy to show how my in.-.` .vention is applicable to ii'ileviee of 'that sort- .4 Fig. G shows my soc-keit4 in elevation ineloseil within :i husk Shown in eiilfirgeilseetion.

Fig. 7 is a partial -Seetioii of the .cup iinilv .initiiilly and gnicle them to th Ilots.

ziteiited Apr. 5, 19M?.

is 2i of Fig. 9 is a partial elevationo the oep shell as; shown in Fig. 2. ein'. 8 tial cross Section on line Vll VH Yintl shell separated, showingv fi slight modieiition in the arrangement of the lips `amel slots.

In the figures, l inrlientes the chi) having the usual tiinge 2 and threaded l fishing 3, whereby the ea is secured in position on the lixtiii-e or elsew 1ere.

fl is the Substantially cylindrical shell heviiig eii'iipper margin adopted to be inserted withinl the Gzip fienile whereby the insulating loch or blocks carrying the parts in circuit are supported sind protected heilig wired. I

To connect thel cap' to the sliel when the pai-ts are assembled, the cap-Piange is proviileilwith a plurality of smell inwardly tin-ned lips 6, :intl the shell with eorr @poneing slots 7 to engage with tlose lips, when the shell ie inserted straight into the cap. rllie viizitni'ail -i'esilienei7 of the shell permit-S 'ilsniiirgin to slip by the lips. and this is -pronioteil 'hy the nini-gine] gniifle-giooves 8 in ziiineinent with the Slots to receive the lips The clap is :ilse formed with ii guide .iig S, corresponding to theelety l0 in the shell for the f thumb-piece '11 of the switch. By this lug `the iirreiig'enient of the two parte, when the Sliellis to' he eet, in theenp, is positively indi- -eii-ietl. This lng ilse engaoes with the perce` liiin bnie te hollit :iwfiy ron'i the Shell niargina'it that point,A so vthat the margin een be presc (lin, wlieii ,-tlie'e:ip and shell :ire'to be Sepn'ilzi ed." i' A sliellisfto Clo. iiw'aywitli the Screws by which the. shell hiisi heretofore been commonly con* neetedj t0 the eii'p, :intl to .provide means easily, zinil, s otojspezilt, automatically to inike such connection, when the shell is 'pushed stra-ight home, without any twisting or tiirniiig'of tlie-pzi`ifts one on the other.'v

The guide liig'insnresproper iilinen'ient' of the parte.' Preferably, three lips, Slots :incl `rinde.grooves 'are provided, 'which :ire 'siitti- -eientor security und prevent rocking ol Athe Shell fon the.4 cap. The shell is also easily withdraw-n from tlieeiip by pressing on the nietail ofthe Shell with the thumb at the left, of the thumb-pieee slot. to disengiige the Shell from the cap lip at that point, and

this construct-ion of cap and then by slightly rocking the shell. When this socket is used with a husk 13 as shown in Fig. 6, so that the thumb cannot be used, the same disen agement of the shell margin from the cap ange may be effected by in serting between them some thin object such as a knife or screw-driver. This means for securing the shell to the cap is also neat and inconspicuous.

To adapt the interior parts of the socket to this particular construction of inclosing case, the upper part of the insulating base should be made of a smaller diameter than the lower. As here shown the base is composed of the porcelain blocks 15 and 16 of which the upper is slight-ly less in diameter than the lower. The reason is to afford a little space for the passage of the lug 9 and also space to permit the pressing in of the upper margin of the shell, when it is to be d1sengaged from the cap; furthermore it' the two blocks were made of the same diameter tas common heretofore) there might be cases,

where, owing to unavoidable accidental irregularities, ythe upper block would overhang the lower at some point, making ditiicult the placing of the shell in position.

The insulating lining 18 is positively securedin the shell and disarrangement there ot avoided by lugs 1t) 19 on each side ot` the thumb-piece slot turned in to engage with the lining. (lorres )ending notches to receive these lugs may be ormed in the lining. The formation ot' the guide grooves 8 by forcing in the inetal at the upper margin of the shell also cooperates to retain the insulating lining in position.

A simple and economical construction of fiber lining for the cap is shown. This consists of a ring of fiber 21, split at one point from the cord hole, forming a spiral with overlapping ends. The cap is formed with a plurality of small projections 22. rl`he spiral ring is easily compressed to be inserted behind these projections, and. then expanding, is securely retained in place.

26 is the outer lamp terminal surrounded by the insulating bushing Q7. I

In Fig. 2 is shown one ot the two wire terminals 28, to which the wires are led through the grooves 29 2th The switch and the other metallic parts coni'iecting the respective terminals are arranged between the porcelain blocks.

In all the other figures the slots T are shown arranged in a circun'ifercntial line, and the lips similarly :ii-ranged and on the edge of the cap flange; but in Fig. t), the

li )s 6 are formed on the flange above its e ge, and inclined as shown; the slots T are similarly inclined. This slightly modified construction is sometimes desirable, as I it permits the disengagement of the shell from the cap to be made more easily.

The reason for the inclination of the two slots, remote from the thuinbpiece slot 10, and of the corresponding two lips` is that, in 'compressing the uppcr margin ot the shell to separate the parts, the two sides of the thumb-piece slot are forcedtoward each other and it is natural to roclr the shell in that direction, z'. c. toward the thumb piece slot, first to `withdraw the lipsI o ti, on the opposite side from the slots i" T' (instead of compressing the margin to a greater extent andV pulling the shell straight out).

lllhen the shell is so rocked, it will be evident that, it' inclined as shown, the lips G (3 will more easily disengage from their slots.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is

1. In a device of the charm` ter described in-which the operative parts are inclosed within a sheet metal protective casing, the combination of a brass cap having a flange, and a brass shell having itsI uiper margin fitting within the cap, said shell being provided with a vertical slotextending down wardly from its upper margin, and with a plurality ot' substantially circumferential short slots, and said cap being provided with an inwardly turned guide. lug corresponding to said vertical slot, and with a plurality of inwardly turned short lips corresponding to said short slots and adapted to engage therewith, and thereby secure the shell to the cap and retain the operative parts in position, said margin being comprcssible to permit the engagement ot the lips and the disengagement tliei'col'.

2. ln a key socket for incandescent electric lamps, tlu` combination of a sheet metalbrass cap, and a tubular brass Ishell having its resilientuppcr margin adapted to be inserted in the cap` said shell being provided with a longitudinal, marginal. front slot for the key of the socket switch and with three short transverse slots adjacent to the margin edge. ont` of said short slots being arranged adjacent to the longitudinal slot` and the other two short, slots at tlic rcar being slightlyv inclined l'roin a transverse line rcvei'sely to each other and said cap being provided with a larger inwardly extending ,lug adapted to engage with the longitudinal slot. and with three shorter inwardlv cxtending lips on the cap flange. said lips corresponding in position and inclination with said short slots. substantially :es de scribed and Ishown.

l. ln a key socket 'for incaiulesccnt. elec4 trie lamps', the combination willi a snbstzintially cylindrical base ot insulating inaterial, ot the terminals and connections sccured on said base, a thin metal cap, a thin metal shell having its resilient upper niar-' gin fitting within the cap, said shell having a longitudinal key slot in itsl upper margin, an invardly turned guide lug on the cap to engage with said slot. and its tip engaging with the smaller upper portion of the base, inwardly turned lips on the cap flange and said shell formed with slots adjacent to its margin to engage with said lips, said base having its upper portion slightly less in diameter than its lower to permit the compression of the resilient upper margin and the disengagement thereby of the lips from the slots.

4. In a Key socket for incandescent electric lamps, the combination with an, inclosing cap and shell, of means toA connect vthe shell to the cap when the parts are assembled` a thin lining ot' insulating material for the shell, said shell and lining being formed with a marginal slot for the socket key, and inwardly turned lugs on the side of said shell slot, said lugs engaging with the lining to hold it in position.

In a socket for incandescent electric lamps, the combination with a cap and shell ot' thin metal, an insulating lining for the shell and an insulating lining for the cap, said cap ulining being formed of a circular, resilient, substantially tlat piece of insulating material split from its center to its margin at one point so as to be compressed and inserted Within the cap and said cap being provided with inwardly extending projections to engage with said cap lining and maintainit in position.

6. In a key socket for incandescent electric lamps, the combination with a base, said base being composed of two substantially cylindrical blocks, the upper block being 'less in diameter than the lower, of terminals and connections on said base. and a thin brass inclosing shell for said base and the parts thereon, composed of a ianged cap and a tubular shell having a resilient upper margin fitting Within the flange, said shell. having a vertical marginal slot for the protruding key, a plurality of short, substantially transverse slots adjacent to the margin, and guide grooves in the margin opposite the transverse slots, said grooves being formed by forcing in the metal at the margin, and being of greatest depth atthe margin edge and gradually diminishing in depth toward 'the transverse slots, said cap having inwardly turned, short lips on the iiange corresponding in position around the eircumference with the grooves and the slots, and being adapted to engage initially with the grooves and then enter the slots, and an inwardly turned guide lug adapted to fit thevertical slot on the shell and having its tip adapted to engage the upper block, when the parts are assembled, substantially as' described and shown.

wardly turned guide lug on the cap tittingA said slot and adapted to engage the base, a plurality of engaging means on the cap and shell detachably to secure the shell to the cap one of said engaging means .being arranged adjacent to theshell slot to facili tate the disengagement of the parts.

8. In-a socket-for incandescent electric lamps, the combination with a substantially cylindrical base of insulating material, ot the terminals secured on said base, a metal fap. a metal inclosing shell for the base, adapted to marginalengagement with the cap, the marginal portion of said shell being spaced from the base and provided with a slot to facilitate the compression of the shell margin, a plurality of engaging means on the cap and shell detachably to secure the shell to the cap, said engaging means being arranged one adjacent to the shellslot on one side and a plurality oppnsitely arranged from said slot to facilitate the disengagement of the shell from the cap. t

9. In a socket for incandescent electric lamps, the combination with a substantially cylindrical base of insulating material of the terminals secured on said base, a metal cap. a metal inclosing shell for the base adapted to marginal engagement with the cap, the

marginal portion of said shell being spaced from the base and provided'with a slot to facilitate the compression of the shell margin, an inwardly turned guide'lug on the cap fitting said slot and adapted'to engage the base, a plurality of engaging means on the cap and shell detachably to secure the shell to the cap, said engaging means being arranged one adjacent to the shell slot. on oney side and a plurality oppositely arranged from said slot to facilitate the disengagement of the shell from the cap.

In testimony whereof I have signed my name to this specification in the presence otl two subscribing witnesses.

JULIUS K. LUX:

Witnesses J. It. lvlnalwann, M. B. SMITH.