US852490A

US852490A - Twin lamp-socket.

Info

Publication number: US852490A
Application number: US19583004A
Authority: US
Inventors: Reuben B Benjamin
Original assignee: Individual
Current assignee: Individual
Priority date: 1904-02-29
Filing date: 1904-02-29
Publication date: 1907-05-07
Anticipated expiration: 1924-05-07

Description

No. 852,490. PATENTED MAY '7, 1907.

R. B. BENJAMIN. TWIN LAMP SOGKET.

APPLICATION FILED FEB. 29, 1904.

2 SHEETS-SHEET 1.

PATENTED MAY '7, 190?.

R. B. BENJAMIN TWIN LAMP SOCKET.

APPLICATION FILED FEB. 29, 1904.

2 SHEETS SHEE I.

'10 of this specification.

.15 in an end toend position.

. REUBEN B. snnJa /nnoronroaeo, iL iNois. rwin nrnP-socasr.

no. see rec.

Specification of Letters Patent,

Eatented May *1, 190?.

Application filed February 29, 190%. Serial No. 195,830.

To a-ZZ 11/71 0777 it "may concern: Be it known that I, RETJBEN B. BENJA-= MIN, a citizen of the United'States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Twin Lamp-Sockets, of which the following is a full, clear, concise, and exact description, reference'being had to the accompanying drawings, forming a part My invention relates to cluster socliiets'ior electric lamps, and has for its object the production of a socket of'minimum transverse -'seotion that will support two electric lamps t, is desirable to mount electric lamps inthis manner for use i in display work-in show cases and windows andin cornice and other similar work. I In an application for United States Letters Patent filed January 31st, 1903, Serial No.

141,262, .1 have described'a'species of my in.-

vention and have inserted generic claims therein; The present application is foran other species or my invention, but it will be 2 understood'the present application is sub sidiary to the generic apphcation' above referred to. I

The other features of 'my invention Wlll more fully appear from the accompanying 3o drawings in. which like reference characters indicate like parts throughout the several figures, and inwhich:

Figure 1 is a sectional elevation of my improved lamp socket; Fig. 2 is a sectional 3 5 view on the. line 2 2 of Fig. 1; Fig. 3 is a sectional view on the line 3-3 of Fig. 1; Fig. 4c is a sectional view of the base and shells with the casing and insulation. removed; Fig. 5 is a view on the line5--5 of Fig. 1; Fig. 6 is a sectional view on the line 6 of Fig. 1 Fig. 7 is a bottom view of another form of my invention adapted to receive Ediswan lamp bases; Fig. 8 is a top view of the same; Fig. 9 is a sectional-eleva- 5 tion thereof showing the casing removed;

Fig. 10 is a sectional view of the insulating base on the line'1010 of Fig. 9; Fig. 11 is aview on the line 11-'11 of Fig. 12; Fig. 12 is a View on the line 1212 of Fig. 8; Fig. 13 is s a View on the line 13-13 of Fig. 12; Fig. 14 IS an end view of a lamp base; and, Fig. 15 1S a detailed view of the method of locking the easings together.

' el' ramp; to Figs. 1 to 6, inclusive. by ref 5 5 en'ce eluiiracters, the base 1 is made of-insu- 1g materialpreterably1n one piece and of 1 ed upon opposite sides thereof, lam receiving shells, 2, 2, which may be secure thereto in any suitable manner, as by bolts 3, 3, which mechanically secure'the shells in position and electrically connect them onewith the other. A U-shaped plate 4, engages the threaded. ends of said bolts and has an extended portion 9, which carries the bindin posts 5', for connecting the outer contacts 0 "the lamps in circuit. Astrip 6, 'carrying the binding posts 7, and having the ends thereof hent inwardly and arranged opposite the cnter of the base is preferably secured thereto by -a. bolt or screw "8, which passes through the base and engages a tongue or strip 34,

struckhu'pirom one end of the strip 6, the

en s of said strip standing a short distance from" .tlie face of the base 1, tofo'rm' center spring contacts for the lamps. f I

An opening is provided in one end of the strip 6, to atl'ordaccess to the screw 8. A

portion of the shells '2, 2, is cut away as shown 111 Fig. 1, to permit the strip 6 topa'ss' through the same. The extended portion 9,'carry1ng the binding screw 5, and the strip 65, carrying the binding screw 7, are preferably disposed in recesses 10,' 10,'formed in the base 1, in order to permit the feed wires to be more readily attached thereto.

A metal casing or inclosing sheath 11,pref

erably made in two parts to afford access to the binding pos ts, is provided for" the base 1' .14 and adapted to telescope therewith, as

shown in Figs. -1 and 6; A depression 15is iormedin the part 13 of said casirw, preferably .having the inner edge thereoi sheared and bent outward, which co acts with the sheared edge 16 formed in the part 14. From the sheared edge 16 an outwardly extending depression 1"? is termed, having a depressed channel 1 leading thereto, which depression l15'is adapted to enter said channel as the casing'lli is piaced in position, the inner sheared edge ol the depression 15, co-acting with the sheared edge 16 of the depresslon 17, to retain the

parts

13 and 14 of the casing 11 firmly in position on the base 1. A portion I 190i the part 14 of the casing is cut away, as

gether as above described. The depressed .channel orroove 18 preferably formed with a slightly contracted portion 20, adapt-.

shownin Fig. 5', to permit said part to be.

turned slightly to lock the parts thereof toed to retain the depression in the depression 17, the casing 11 giving sufficiently to ermit the depression 15 to be sprung into position therein.

,I am aware that other suitable means than those above described may be provided for locking the parts of said casing in position, without-departing from the spirit of my invention. The base 1 hasa shoulder or projection 22 formed thereon, engaged upon either side thereof by the sheared and inwardly

depressed edges

23, 23, of the part 13 0f the casing 1.1, to hold thebase 1 in a fixed position therein; I prefertoform openings 24, 24, in the casin 11 to afford access-to the binding posts t3 and 7-when the part-14 of said casing is removed.

. lock said strips or rings of insulating material firmly together. A similar strip or ring 23 of insulating material is disposed between the part 12 ot the casing and the other lamp re ceiving shell, the inner edge 20 of said strip or ring of insulating material beingpreferably turned outward to abut against or engage the edge of the strip or ring of insulating material disposed between the base 1 and the casing 11,when said casing is in position as shown in Fig. 6. The insulating strip or ring disposed between the base 1. and the casing 14 has a cut-out portion 30 adapted to accommodate the shoulder or projection 22 upon the base 1 'and also has a cut-out portion 31 opposite the standard. or conduit 21 to permit feed wires to pass from the standard 21 to the binding posts 5 and 7, a groove 32 being provided in the base 1 For said wires. The base 1 is preferably'eut away on. one side of the groove 32 to permit said base to be freely removed from the casing 1. 3 without inury to the feed wires as shown in Figs. 1 and 4. To prevent the strips or'rings 25, 25, of insulating material disposed between the

shells

2, 2, and the easmg 1.1 from rotating, I preferablylorni

depressions

33, 33, in the casing 11 and corresponding depressions in the insulatingstrips or rings 25, 25 .whirrh vii-act to hold axial strips or rplgs in a fixed position within said casing.

Jn order to attain the object before mentioned of producing a cluster socket of mini- .muin transverse section, the casing 11 is positionedc'onti uous with the insulating strips 25 immediate y surrounding the lamp shells.

Referring now to Figs. 7 to 15, inclusive,

in which is illustrated a form of my inven-- tion adapted for use withEdiswanlamps, an insulating base 34 made of porcelain or other suitable insulating material has two trans verse apertures .formed therein, lined with

thin metal sleeves

35, 35, having outwardly extending flanges 36 adapted to engage the contact plates 37.; Pins or

bolts

38, 38, passing through the base 34

engage'the plates

37 and 39, apair of said plates being disposed upon each side of the base 34, to retain said plates in position thereon. The plates retainin position withinthe sleeves 35, contact pins 40 40, having shoulders and being held in contact therewith against the power of small coiled springs 41, 41. A slight raised portion 58 is preferably formed upon either side of the basev 34 to insulate the contact plates from each other. The

contact plates

37, 37, have extended portions carrying

binding screws

42, 42 for attaching thereto the leading-in wires which pass .through conduit or support 43, if desired. A transverse groove 44 is formed in the bottom of the base 34 to permit the feed wires to readily pass to the binding

screws

42, 42, said groove also permitting said base to be readily removed from the inclosing casing to be hereafter described, without detaching the leading-in wires, therefrom. An inclosingcasinjg or shell 47 preferably formed in two parts, is adapted to lit over the base 34, the contract ed ends 48 of said casing being adapted to receive the lamp bases49, 49,.

The contact plates make electrical contact with the pins 4(1- whirh also aid in securing the lamps in posi- 50 of the lamp bases.

lion, springs 41 being arranged behind said.

pins which tend to move the sameto their outermost position, whereby the projections 51 carried on the lamp bases are securely held in the cut-out portions 52.

Formed upon one member 47 of the in (losing casing or shell is a standard or sup-' port 43, which is preferablv hollowto adapt it to serve as a conduit "tor the leading-in wires, and provided with a suitable base 57. Formed in opposite sides 'of' the casing 47 arcsnii'till pmiections 53, 53, adapted to enter

longitudinal depressions

54, 54, formed in the other piembcr 58 of said casing, when said members telescope each other, and lock therein when the casing carrying the longitudinal depression is turned slightly to the right' A longitudinalopening' 55 is cut in the top of the 'casing58, to receive a setscrew 46 carried in the top of the casing 47 and adapted to be screwed home v to.lock said casing in position after the members thereof have been snapped together as above de scribed, the set screw 46 entering an aperture or cut-out portion in the base 34 to retain the base in position. A- portion of the casing 58 is cut away at 56, to receive the conduit or support 43, and is of such form as sition in the sockets. 1

While I have described my improved lamp socket with particular reference to details of construction, I do not wish to be understood as limiting myself. to said details, as many changes may be made therein, without de-.

parting from the spirit of my invention, and

I claim the right .to make all such changes as fairly fall within the scope ofmy invention.

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

1. In a two-light lamp cluster, the combi* nation with a two-part iriclosing sheath, of.

an insulating base withinsaid sheath; lamp receiving shells associated therewith and dis-,

posed wi thin the opposite ends of said sheath and arranged to support the lam s in axial alinement, said inclosing sheath ying close to the receiving shells and having unobstructed openings in the-ends thereof to permit the insertion of lamps in said shells,-

2. In a two-light lamp cluster, the combination with an inclosing sheath formed from two separable interlocking members, of lamp receiving shells d sposed within the opposite ends of said sheath and arranged to'support the lamps. in axial alinement.

3. Ina two-light lamp cluster, the 'combi nation with a two-part inclosing sheath, of a support therefor secured to one of said parts land constituting a conduit for the leading-in wires, and lam shells disposed within the opposite ends 0 said sheath and. arranged to support the lampsin axial alinement.

4. In a two-light electric-lamp cluster, the combination with an inclosing sheath formed of two'parts arranged to telescope upon one another, of lamp-shells disposed within the opposite endsof said sheath and arranged to support the lamps in axial ali-ii'ement.

5. In a two-light lamp cluster, the combination with a two part inclosing sheath, of an insulating base arranged therein, lamp receptacles supported by said base and disposed within the oppositeends of said sheath and arranged. to support -the lamps in axial aline- I ment, said inclosing sheathlying close to the lamp receptacles and having unobstructed openings in the ends-thereofto' permit the insertion ofv lamps aipairi of binding posts common to said lamp receptacles and carried by said base. 1

6. In a two-light electric lamp cluster, the combination with a two-part separable in closing sheath of an insulatingbase arranged therein, lamp receptacles mounted upon sald base and disposed within the opposite ends of said sheath. and arranged to support the lamps inaxial alinement, a pair of binding posts carried by said base and common to said lampreceptacles, and a transverse standaid onsupport for said socket constituting a z 7. In a two-light e ectri combination with an inelosing sheath formed of two sections, having a bayonet joint, of lamp receiving shells disposed within the o posite ends. of said sheath andfarranged 0 support the lamps in axial alinement.

' 8. In a two-light electric lamp cluster, the combination with a two part inclosing conduit for. the supply wires.

clamp cluster, the

sheath, of an insulating lining for said sheath, I

and lamp receptacles disposed within the opposite 'ends of said casing and arranged to support the lamps in axial alinement.

9. A two light electric lampcluster comprising a central portion adapted to support two lamps in an end to end position, an inclo'sing casing or shell composed of two members,

.one' of said members having an aperture to the interior of the cluster when the other of said members is removed.

' formed therein, said aperture affording access 10. ,A two light electric lamp cluster comprising a central portion'adapted to support two lamps in an end to end position, an inclosing casing or shell composed of two members, and an insulating lining for said casing composed of two members, the contiguous edges of said members having inwardly and outwardly extending flanges formed therein, said flanges interlocking to form a unitaryin sulated member. 1 1. In a two light electric lamp cluster, the combination with an insulating base, of lamp receptacles carried by said base and adapted to support the lamps substantially in axial alinement, a pair of binding posts common to said lamp receptacles, and a removable casing for said socket com osed of two members, one of said members aving an aperture or apertures formed therein, said; aperture or apertures being closed when the other of said members is in position and affording access to the interior of the socket whenjsaid last mentioned member is removed;

12. In a two light electric lamp cluster, the combinatipn with an insulating base, of lamp receptacles carried by said base and adapted to support the lamps substantially in axial almement, a pair of binding postscommon to said. lamp receptacles, and a casing for, said socket, said casing having? a depression 13. In a two light electric lamp cluster, the combination with an insulating base, of lamp receptacles carried by said base and adapted to support the lamps substantially in axial alinem'ent, a pair of binding posts common to said lamp receptacles, a removable casing for sald socket composed of two members, one of said members having a depression formed therein adapted to engage a rejection carried by said base to retain sai base in a hxed position therein.

14. In a two light electric lamp cluster, the,

said lamp receptacles disposed in one of said members, and a pair of rings or stripsof insulating material for said base and the other of said receptacles disposed in the other of said members, the contiguous ends of said pair of rings or strips of insulating, material having outwardly and inwardly extending flanges formed thereon, said flanges overlapping and c0-acting to retain said pair of insulating rings or strips of material together, said first mentioned ring or strip of insulating material co-operating with said pair oi" strips or rings of insulating material to form a e0ntin. nous insulating lining for saidsocket.

In Witness whereof, I have hereunto subscribed my name in thepresence of two wit- REUBEN B. BENJAMIN.

Witnesses:

M. R. Roonronn, E. A. OLSEN.