USRE12765E - benjamin - Google Patents

Description

Nofiznes. RBISSUED MAR. 24, 1908.`

R. B. BENJAMIN. PLURAL LAMP SOCKET.

APPLICATION FILED IEB. 6, 1908.

TSW

UNITED .STATES PATENT OFFICE. A

REIBEN n'. BENJAMIN, or CHICAGO,v ILLINOIS, AssIGNoii To THE BENJAMIN ELECTRIC MAUFACTURINGr COMPANY, OF CHICAGO ILLINOIS, A'CORIORATION OF ILLINOIS.

PLUnAL-namr SOCKET.

" speiation o: Reissued Letters Patent. Y. manned Mar. 24, 190s.

Original application led May 20, 1898. Renewed August 10, 1901, Serial No. 71,635. Original No. 721,774, dated.

' I .March 3', 1903,- Application for reissue led February 6, 1908. Serial No. 414,653.

To' all when, 'it concern.' Be itiknown that I, REUEEN B. BENJAMIN, a citizen of the United States, residing at Chicago, in the 'county of Cook and State of Illinois, have invented a certain new andJ useful Im rovenient in Plural-Lamp Sockets,

l of which t e following is a full, clear, concise,

and-exact description, reference being had to the accompanying drawings, forming a part of this specification. i

My invention relates to a plural-lamp socket,'my object being to rovide a compact and 'cheapl *.-constructedfV orm of socket for acluster o incandescent lamps.

I have illustrated my invention in the accompanying drawings, in which- Figure'l .isw'a sectional view of a plural socketembodyingQmy invention. -Fig. 2 is `ggfpialii view of thecontact adapted to bev engaged by' the central terminals Aofthe lamps. Fig. 3 is 'a plan view of the bowlshaped contact-plate which supports the contacts ada ted to beengaged bythe ring-tere- Fig. 4 is a view"of one of theindividual sockets. Fig. 5 isa' sectional view of a modiiication wherein-the socket is adapted to receive lamps having bases of the Thomson-Houston type, and

Fig. 6 isa view'of a further modification.

Like letters refer `tolike parts in the several figures.

Upon the under side of an insulatingbase a is su' )ported ay bowl-sha ed contact-plate "fb, having oblique side wa s and being secured at the upper edge 'to the insulatingbase by 'means vof screws a a. U on the oblique.side walls are mounted the t readed vshells' 'b' b to receive the lamp-bases. Within this ybowl-shaped contact-plate and supported'upon the insulating-base .is a contact- -platc c, which in the present instance has an upturned 'rim' c, which constitutes the contact adaptedfto be engaged by the central terminal of the lamp when the base thereof is screwed into the Shell b. The plate c is secured upon the base e by means of screws c2 One of the conductors d is connected with the screvir d, provided upon the `plate c, andthe other conductor d2 is connected with a screw (Z3, mounted upon the plate-,11, wherebyplates aand b constitute the opposite terminals of the socket, and when the several lampsr are scrcwedinto position they rounds the lower portion of'the socket, hav- Ingopenings to accommodate the shells b situated relatively to the individual sockets a removable cap e', which may be removed when'it is desired to gain access to the binding-screws d d3. socket is also inclosed withina metal shell busliin e3, secured to the pipe e4. In i 5 I have illustrated a socket adapted Ier lamps having bases of the Thomson-Houston type. The contact-plate b is similarly sup orted. from the insulating'- b'ase a, which) shown as the base of a Wall-`socket adapted to be secured tto thewall b means of screws a a. The ring-terminal is ada ted to engage the oblique base of the bowl-s aped. contact-plate b, While' the centraly-,screw-threaded contact f of the lamp isa apted t screw upon the post c, a num- "ber of which are mounted upon a metal base c?, screwed to the under side of the insulatingbase a. A casing e incloses the metal portions of the socket, as in the former instance. In Fig. 6 I show how insulating bushings or rings h may be applied to the shells b to insulate the casing e therefrom `to assist in holding the casing in place and to aline the apertures in the case with the threaded shells.

ably threaded to permit them to be screwed u on the shells. The bowl-shaped contactp ate in eachv of the formsillustrated herein orms an electrical conductor to convey current to the rino'fterminals ofthe lamps, thus dis ensing with it orms a'n etfective mechanical su' port without the provision of'any additionallsupporting structure.'

heretofore been constructed by `associating lamp sockets, each having its own insulating base, A lamp contacts and individual pair of bindin posts, and connected to the electric circuit y means'of splicedleading-in connections or individual lamp Wires, and I disclaim such structures.

By the term electrical connections, conductors eonductiiig parts or, members, and similar expressions occurring in are connected in parallel. A casing e surthe claims, I mean 'the conducting parts or in the present instanceV is" I of. the lamp-base" and having upon the lower end and centrally The upper portion of the e2, supported in the present instance by a As shown, these bushings or rings are prefer- Wiring, and at the same time I am aware that clusters 'of sockets have together a plurality of separate and individ- G Vlamp in operativo relation with said conmembers of the organized structure by which the contacts for the lamps are' interconnected in the desiredcircuit relation, and

whereby suitable connection terminals ma be provided for readily connectingthe leadl ing-in wires with the cluster.

bowl-shaped contact -plate mounted there-y on and having oblique side Walls provided with a plurality of openings to accommof date the center lamp and socket terminals and carrying the contacts for the ring-terl minals of the lamps, contacts for the end terminals of the lamps supported within said bowl-shaped contact-plate and placed opposite the openings therein, and means adapted to secure the lam sin operative relation with said contacts,` su stantially as described.

2. An electric-lamp cluster, comprisingv a pluralit of metallic receivers for the lamps, a metalli ceiversv and attached to the base, an electric connection with the receivers, an additional contact for each receiver andan electric connection with said contacts, as set forth.

3. An' electric-light-lamp cluster, consisting` of a non-conductor base, a metallic trun catedlower portion attached to the" base and havin a plurality of lamp-receivers and suitable ectric connections eirtendinf` to said truncated portion,substantially as doescribed.

4,. vIn a plural-lamp socket, the combina# tion With an insulating-base, and a metallic contacteplate mounted thereon, of a plural-v ity of metallic threaded shells for the lampbases, supported thereon and in electrical contact therewith, and contacts for the cen-f vtral-lamp terminalsv arranged oppositethe respective shells, substantially as described.

5. Inaplural-lamp socket, the'combination with a suitable base, of a plate mounted thereon having side walls provided with openings to accommodate the central lamp and socket terminals, a pluralit of threaded shells mounted on said wals, and central terminals 'for the lamps,v substantially `las described. y A Y 6. lIn a plural-lamp socket', tlie combina-V tion witlr a suitable base, of a contact-plate mounted thereon havingV side walls provided tacts, substantially as described..

witha plurality of openings to accommodate the central lamp and socket terminalsandY carryingthe contacts for the ring-tern'iinals of the lamps, u pturncd contact portions adapted tobe engaged by the. central lampf terminals, and means adapted `to secure 4the .7, The combination with ja 4suitable base, of a contact-plate of conducting material provideiyviii a i plurality; 0f .cravings te ,aC-.

c truncated portion carrying the rel commodate the second contacts of the lamp- 4 of openings to accommodate the second contacts othe lamp-holding devices, lam

holding devices and associated contacts, t e side walls` of said contact-plate carryingpne contact ofeach lamp-holding device, andthe, second contact thereof being suitably mounted. f

9.v A cluster-lamp socket comprising anni'.

dine

insulating-base, a plurality of lamp-ho devices having contacts supported uponsaid base, conducting parts or members interconnecting said contacts in the desired circuit relation, suitable connection terminals for the leading-in wires, and a metalliccove'r or casing having openings for the passage off' the lamp-bases and independent of saidlanipholdingdevices.

10. A cluster-lamp iixture comprising an insulating-base, a plurality of lamp-holding devices, each having two contactssupported upon said base, and a metallic cover or casing having openings for the passage of the lampbases and independent of said lamp-holding devices.

ll. A' cluster-lamp\socket comprising an l Vinsulating-base, a plurality of threaded shells supported by said b ase, suitable center contacts for said shells, conducting parts or" members interconnecting said shells and contacts in the desired circuit relation, suit'- ableconnection terminals for the leading-iii wires, and a separate cover or casing.

ico

los

12. A cluster-lainp'iixtiire Vcomprising'anA lating base, and a removable cover.

13. cluster-lamp socket comprising an insulating-base,v lamp-holding devices' and" their; contacts all mounted upon'said insu insulating-base, lamp-holding devices and associated contacts allV mounted' upon vsaid` I 'insulating-base, Aconducting parts or'i'nein- ,bersdirectly' joining respectively the like r contacts of said lamp-holding devices, su it-' I able connection terminals'for the le'adingin wires, and a cover havinganoi'i'en'ing oppo-f" .site each'lamp-holding device, substantially l' as described.

14.4 A cluster-socket"comprising a suitable base, lamp-'holding devices and' associatedvv contacts arranged -to liold'thelainps'in an oblique position relatively to l the base, con-, A

ducting parts or members inter'connecting'4 said contacts Vin the desired circuit relation, suitable connection terminals for the leading-in wires, and a cover lia-ving' an opening opposite eachl lamp-hold ing` device, substanfially as described.

amp

15. A cluster-lamp socket comprising an insulating-base, la nsmber of lamp-holding sockets with their contacts directly mounted. on the insulating-base, conducting parts or members common respectively to the like contacts of said sockets, connection terminals for the ready connection of the leadingin Wires with said parts or members, and a cover having an opening opposite each lampholding device, substantially as described.

16. A clusterlamp fixturecomprisin an insulating-base, a number of threaded s ells and center contacts constitutin the lampsockets mounted upon the insu 'ating-base,

and a cover havin an opening opposite each socket, substantie. ly as described.

17. A cluster-lamp socket comprising an insulating-base, a number of threaded shells and center contacts constituting the lampsockets mounted upon the insulating-base, conductirnJr parts or membersinterconnecting saidrsrhellsand contacts in the desired circuit relation, suitable. connection terminals for the leading-inwires, and a cover-hav ing an opening opposite each socket, substan tially as described.

18. A cluster-socket comprising a suitable base, lamp-holding devices and associated contacts arranged to hold the lamps in an. oblique position relatively to the base, and an inclosing cover or casing. i

19. A cluster-lamp socket comprising an linsulating-base, a removable cover and a number of lamp-holding sockets with their contacts directly mounted on the'insulatingbase, conducting parts or members directly oinin lrespectively the like contacts of said olding sockets, and suitable connection terminals for the leading-in Wires.

20. A cluster-lamp fixture comprising an insulating-base, and a removable cover, a' number of threaded shells and center contacts constituting the lamp-sockets mounted directly upon the insulating-base- 21. A cluster-lamp xture comprising an insulating base, lamp-holding devices and their contacts all mounted upon said insulating-base, a removable cover, electrical conductors connecting said contacts and carried upon said base, and means, asbinding-posts, supported upon said base for the connection -of the leading-in Wires.

'22. A cluster-lamp fixture comprising an insulating-base, lamp-holding devices and associated contacts associated base, a imshlng .shell or cover having an their contacts, all mounted upon said insulating-base, electrical conductors connecting said contacts and carried upon said base, means, as binding-posts, for the connection ofthe leading-in wires, and a removable cover permitting access to said bindingposts or.

similar lmeans 23. In a cluster socket, an insulating-base, lamp-holding devices and associated contacts, a casing having an opening opposite each lamp-holding device, and means for maintaining the openings in said casingin 'alinement with said respective lamp-holding devices.

24. A lamp ixture comprising a suitable base, a plurality of lamp-holding devices and with said opening opposite each of said lamp-holding devices for the passage of the lamp-bases, and a removable cap carried upon said cover.

25. In a cluster socket, the. combination with a suitable base, a contact-plate attached at its rim to said base, and carrying -a plurality of openings to accommodate the second contacts offthe lamp-holding devices, lamp-holding devices .and associated coutacts, saidy contact-plate carrying one contact of each lamp-holding device and the second contact thereotl being suitably supported.

26, In a lamp socket, an Ainsulating-base, a plurality of threaded lamp-shells occupying oblique positions relatively to the aXis vof ,said base, and metallic supporting parts for said shells secured to said base b y screws or bolts passing axially into or through said base.

2' 7.-I n a plural-lamp socket, the combination with a suitable base, of a plurality of iamp-receiving shells suitably supported thereon in oblique positions, each of said shells being Vunobstructed throughout its llength to permit. the lamp-base to pass completely therethrough, and center contacts for theV respective shells situated beyond the inner ends thereof, whereby the lamp-holding devices may be assembled in compact form, substantially as described.

In testimony 'whereof I have signed my name to this specification, Ain the presence of two subscribing Witnesses.

REUBEN B. BENJAMIN. Witnesses:

W. PERRY HoLM,

ROBERT LEWrs AMES.

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