US872065A - Incandescent-lamp cluster. - Google Patents

Description

PATENTED NOV. 26,1907.

H. HUBBBLL.

INGANDBSGENT LAMP CLUSTER.

APPLICATION FILED 00T. 13, 1905.

2 SHEETS-SHEET 2.

INVENTOR WITNESSES fw- BY @fw/@Ma ATTORNEY HARVEYv HUBBELL, OF BRIDGEPORT, CONNECTICUT.

INCANDSCENT-LAMP CLUSTER.

Specification of Letters Patent.

Patented Nov. 2619() f Application filed October 13. 1905. Serial No. 282.600.

To-laZZ whom it muy concern:

Be it known that I, HARVEY HUBBELL, a

l citizen of the United States, residing at Bridgeport, county of Fairfield, State of Connecticut, have invented a new and useful Incandescent-Lamp Cluster, of 'which' the following is a specification.4

This invention has for its object to pi'oduce a simple and inexpensive incandescent lamp cluster the body of' which shall be made entirely of porcelain or other insulating material and shall be made in two arts, each the assembled position form sockets adapted to receive threaded sleeves which in turn receive the screw shells of incandescent lamps. By making the body entirely of porcelain or similar material I am enabled to produce incandescent lamp clusters in which very littlemetal is used and in which there are no exposed metallic parts and no opportunity for corrosion, the cluster being very economical to produce, neat and satisvide actoryin lappearance, easy and satisfactory to o crate and absolutely safe under all the con itions of use. 4

With these and other objects in view I have devised the novel structure Which I .will now describe referringto the accompanying drawings` forming a part of this speciiication and using reference characters to indicate the several parts.

vFigure 1 is a vertical section of my novelv cluster' on the line 1 1 iniF ig. 2lillustrating -a form ofthe invention iii Which the lamps are in serr'es; Fig. 2 a larfview of the cluster detached from the hic rey,` Fig. 3 an invertedplan v iew of the upper part of the body oi -the cluster detached; Fig. 4 a similar view with the contacts, binding screws and threaded sleeves removed," and Fig.. 5 is a viewcorrespondingwith Fig. l, illustrating a form of the invention in which the lamps are in multiple.

10 and 1l denote the'parts';oi` the body which are ymolded from insulating material, as porcelain, and are made of any required configuration. AThe parts are each pro- `With a plurality of half-sockets l12 which are molded therein.. These halfsoclipts correspond with each other and each pair of half-sockets form a socket to receive a threaded sleeve 37 which in turn tfo receive ,the screw shell 13 of anincandeseent lamp .14., Eachup er art ll() is showers rfvrlfled 0r ansssig part containing half sockets which in` is adapted4 .e Awith iny terlocking projections 15 which interlock l with corresponding depressions, not shown, in part 11l of the body to retain said parts accurately in position relatively to each other iii assembling and in use. The parts of the body are secured together and the cluster as a whole is secured to a hickey 21 by means of a central bolt 22 threaded at both ends and engaged by nut 23 in the. hickey and an ornamental nut 24 on the underside of part l1 of the' body. The liicliey is provided with lugs 52, see dotte'd lines Fig. 1, which engage recesses 53 in the top of part 10 of the body. This construction insures a perfect fitting together of the parts in assembling and avoids the possibility of movement of the hickey relatively to the bod Within the body When the parts thereof are in the assembled position is a recessf/Z, part of said recess beingiormed in each portion of the body and projecting into this rees. is a hub 27 formed upon part 10 of the Iii the series form of the invention, that is as illustrated in Figs. 1 to .4 inclusive, the binding posts to which the circuit wires are attached are on the underside of part 10 of the body, while in the multiple forni, as illustrated in Fig. 5, the binding screws are on the upper side of part 10 of the body. In the latter form, 28 'denotes a contact plate which is secured to the hub and is adapted to be engaged by contactsl43 in the bases 29 of incandescent lamps. 30 denotes contacts shown as extending i'rom a ring which is secured to part 10 of the body at the upper end of recess 26. These contacts are rigidly4 secured to threaded sleeves 37 and retain the sleeves in place, said sleeves themselves being adapted to b'e engaged by the screw shells 13 of incandescent lamps. 32 denotes binding screws 'for the circuit Wires whichare shown as carried by plates 33 lying in a recess 34 in the top of part 10 of the body. One of the plates 33 is shown as `s ecured in place by means of a screw 35 which also secures ring 31 in place, as at the right in Fig. 5, the other plate 33 being Shownas secured in place by means of a screw 36 which also secures contact plate 28 sage 'ofthe current in this form will be readily understood frm Fig. l5. Suppose that left plate 33.1 It .Willp'as'sby means of 'screw `in place, as at the left in Fig, 1'. 'lhe pas` the current enters at the binding screw in the- '36 to contact plate 28, thence to the lamps through the engagement of the lamp bases with said plate. The current passes from the lamps through the enga ement of the screw shells with threaded seevesl 37 and theengagement of the latter with contacts 30 on ring 31, thence by means of screw 35 to the binding screw in the right plate 33.

In the'series form, see Figs. 1 to 4 inclusive, the circuit wires indicated by 38 pass downward through holes 39 in part 10 of the body and are connected to binding screws 40 carried respectively by plates 41 and 42. The threaded sleeves are riveted or otherwise secured, to plates 44 which are themselves secured to part of the body and certain of which are shown as connected by means of bridge plates 45. A46 denotes contacts which are adapted to be engaged by the contacts 43 in the bases of lamps. Certain of these contacts are connected by bridge plates 47 which are secured to hub 27 and one of said contacts, see at the left in Fig. 3, engages the plate 41 carrying one of the binding screws. Plate 41 is secuied in place by a screw 48 which also aids in securing one of the bridge plates 47. Plate 42 is secured.:

ets which together forni sockets, threaded sage of the current is as follows: Suppose that it enters by means of the circuit wire.

connected with the binding screw in iplate 41. The current passes by means o the plate 4,6 in contact with plate 41 to the con- ,tact 43 in the base of a lamp ,thence through the screw shell of the lamp and the threaded sleeve 37 at the left in Fig. 3 to thecorresponding plate 44 andbridge plate 45 to another threaded sleeve; thence through a second lam and by contact 43 to plate 46, through rid e plate 47 and another plate 46 to the threa ed sleeve and screwshell of a third lamp; thence through the contact 43, vplate 44, a bridge plate 45 and anotherl plate 44 .to a threaded sleeve andthe screw shell of a fourth lamp; thence by means ,of a contact 43, a plate 46, bridge plate 47 and another plate 46 to the contact 43 of' a iifth lamp; thence through the corresponding screw shell and threaded sleeve to a plate 44; thence by means of screw 51'to bridge plate 50 and by means of screw 49 to late 42, carrying the binding screw to whic the other circuit wire is attached, said circuit wire passing upwardA through a hole 39 in part 10 of the body. y

In use, the lamps are attached and detached by turning them into and out ot' the threaded sleeves 37 in the body, it being an important feature of the present vinvention that there are no parts to be insulated for thel reason that the entire body is madev of insulating material..

Having thus described my invention I claim:

A cluster for incandescent lamps comprisingltwo parts made of insulating mate ial each aving formed therein half-sockets which with the corresponding half-sockets of the other part form sockets, and threaded sleeves in said sockets which are adapted to receive the screw shells of incandescent lamps.

2. A cluster for incandescent lamps coniprising a part made of insulating material and having half-sockets formedztherein and provided with threaded sleeves for engagement by thev screw shells of incandescent lamps and contacts for engagement by the bases of incandescent lamps, and another part also formed of insulating material and iaving half-sockets formed therein which with the corresponding half-sockets in thez sleeves in said sockets adapted to receive the screw shells of incandescent lamps, one of said parts having contacts for engagement by the bases of incandescent lamps.

4. An incandescent lamp cluster comprising two parts both I.formed from insulating material and having corresponding half-sock.- ets which together forni sockets, threaded sleeves in said sockets adapted to receive the screw shells of incandescent lain s, said cluster having an internal -recess an( within said recess contacts to engage the screw shells and other. contacts to engage the bases of incandescent lamps.

5. An incandescent lamp cluster consisting of-two corresponding )arts made of insulating material cach part aving corresponding half-sockets which together form sockets, threaded sleeves in said sockets adapted toreceive the screw shells of incandescentlanips, contacts to which the threaded sleeves are attached, other contacts for engagement by the bases of incandescent lamps and meansdi'r securing the parts together.

6. An incandescent lanip cluster comprising two corresponding arts'made of insulating material each art iaving corresponding half-sockets whici together forni sockets, threaded sleeves in said sockets adapted to receive the screwl shells of incandescent lamps, contacts to which said sleeves are attached, bridge plates connecting certain of said contacts, contacts adapted for engagement by thc baises ol"v incandescent lamps, bridge plates connecting certain of said contacts, binding screws to which the circuit wires are attached and a bridge plate connected to one oiE said binding screws and to a contact engaging a threaded sleeve and not connected to a bridge ,late

7. An incandescent amp cluster comprising two parts both formed from insulating material and having corresponding half-sockets which together form sockets, one of said parts being provided with recesses, threaded sleeves in said sockets adapted to receive the screw shells of incandescent lamps, contacts engaging the threaded sleeves, other contacts adapted for engagement by the bases of incandescent lamps, and a hickey to which said Aparts are'connected and which is provided with lugs engaging the recesses.

' 8. An incandescent lamp cluster comprisingotwo part-s both formed from insulating material and having corresponding halt-sockets Whichtogether form sockets, threaded sleeves in said sockets adapted to receive 'the sc rew shells of incandescent lamps, one of said parts being provided with holes through which` the circuit wires pass and binding screws on its underside to which the circuit wires are connected and contacts which engage the threaded sleeves and the bases of incandescent lamps.

t). An incandescent lamp cluster comprising two corresponding parts made of insulating material each part having corresponding half-sockets which together forni sockets, threaded sleeves in said sockets adapted to receive the screw shells of incandescent lamps, contacts engaging respectively the threaded sleeves and the bases of incandescent lamps and binding screws on the underside of one o1 the parts to which the circuit wires are Connected and which are connected in series with the contacts.

In testimony whereof l atlix in v signature, in presence of two witnesses.

nAnvlcY HUBBELL.

Witnesses:

A. M. Woosfrnn,

S. W. A'rnicwroN.

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