US511613A - Charles n - Google Patents

Description

(No Model.)

c. N. HAMMOND. ROSETTE FOR ELEUTRIG LIGHT S.

No. 511,613. Patented Dec. 26, 1893.

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UNTTED STATEs PATENT OEEToE.

CHARLES N. HAMMOND, F BOSTON, MASSACHUSETTS, ASSIGNOR TO THE HAMMOND OLEAT AND INSULATOR COMPANY, OF SAME PLACE.

ROSETTE FOR ELECTRIC LIGHTS.

SPECIFICATION forming part of Letters Patent N o. 51 1,613, dated December 26, 1893. Application filed June 30,1893. Serial No. 479,263. (No model.)

T0 60% whom z t-may concern: In the drawings, Figure l is a view one half Be it known that 1, CHARLES N. HAMMOND, in elevation, and one half in vertical section a citizen of the United States, residing at Bosof a rosette embodying my present invention, ton, in the county of Suffolk and State of Masit showing one feed wire with a strand of the 5 sachusetts, have invented certain new and lamp cord connected therewith. Fig. 2 is a useful Improvements in Rosettes for Electricview showingin inverted plan the parts which LightlVires, of which the following is a speciare shown in Fig. 1. Fig. 3 is a view of part fication, reference being had therein to the of one of the feed wires showing the manner accompanying drawings. in which it is stripped of its insulating cov- IO My invention relates to rosettes, so called, ering for a portion of its length in order to which are insulators that are used in connecpermit of having a strand of the lamp cord tion with suspended incandescent electric connected therewith. Fig. t is a view showlights. These rosettes provide for the coning the appearance of the joint between the nection, with the main feeding wires which feed wire and the connected strand of the I 5 supply the electric current, of the flexible lamp cord when the insulating or electrical wires, called lamp cords, by which the electape has been applied thereto. tric lights are hung or suspended; and in ad- The rosette 1 shown in Figs. 1 and 2 of the dition, serve for the support of the said feeddrawings, is formed of some suitable nonwires and lamp cords. The said rosettes are conducting material, and it has a boss 2 with 2o employed, also, for other similar uses. They a central hole 3 made therethrough for the serve not only for purposes of insulation, and passage of the lamp cord at. The rosette hasas supports, as aforesaid, but also as an ornaholes l4, 14 formed through the edges of the mental covering to conceal the connection body thereof, for the passage of the screws aforesaid. or other fastening devices which secure it in 25 Hitherto, so far as known to me, rosettes place. At opposite sides of the boss 2 the to have been provided with screws and metallic sette is formed with ears or flanges 5, 5 on pieces by means of which the mechanical and which are provided binders for securing the electrical connections between the feeding feed wires 6 to the rosette at the required Wires and the lamp cords have been secured. distance apart. These binders are on that 30 These parts, besides being objectionable in side of the ears or flanges 5, 5 which is exother respects, are liable to become detached posed, it being undermost when the rosette or lost, and require the expenditure of 0011- is applied in the position which is represented siderable time on the part of the workmen in Fig. 1, so that when engaged with the said who apply the rosettes, in making the conbinders the feed wires are separated and in- 5 3 5 nections and putting up the rosettes. sulated by the interposed material of the ears The object of my invention is to provide a or flanges, from or adjacent wood-work of rosette of simple character and construction, the ceiling or other support to which the rowhich may be conveniently applied and consette is applied. The preferred form of binder nected, which dispenses with the connecting comprises oppositely and alternately placed 0 o screws and brass fittings commonly in use, projections'7, 7 and 8, the projection 8 being and which will efiectually separate the elecopposite the two projections 7, 7 at a distance tric Wires from adjacent wood work of the from the line of the latter less than the diceiling or other support to which the rosette ameter of the feed wire with its covering, and is applied. at a point intermediate the two projections 5 45 The invention consists in certain features 7, 7. The projection 8 is provided withalip of improved construction, andin a novel com- 9 which prevents movement of the feed-wire bination of parts, which first will be described oft the end of the said projection. As is obwith reference to the accompanying drawvious, the feed-wire must be bent in order to ings and then be particularly pointed out and permit it to be inserted to its place in the 10c 50 clearly defined in the claims at the close of this binder, and when straightened out by strain specification. or otherwise, after having been thus bent and inserted, it will pass in back of the lip 9, after which it cannot be removed until after having been bent to enable it to pass around the end of the lip 9. The ends of the strands composing the lamp cord are mechanically applied or connected with the feed wires in the manner which is shown in Fig. 1 in the case of one of the said strands and feed wires, one of the said strands being in practice thus connected with one feed wire and the other strand being thus connected with the other feed wire. Each strand extends upwardly within the boss 2, over a ledge within the body of the rosette, then down through a hole 11 just outside the boss, and around the end of the projection 8, it resting in a groove 12 in the said end and having the stripped end of its conducting wire or wires applied directly to a stripped portion of the feed wire 6.

Fig. 1 shows the end of the conducting wire or wires of a strand stripped or bared of itsinsulating covering, and bent around the uncovered wire 6.

Fig. 3 shows the manner in which the feed wire 6 has a portion of I its insulating covering removed, in order to permit the end of the conducting wire or wires of a strand to be properly applied thereto.

The bared or stripped portions of the feed wires and conducting wires are wound or covered with electrical or insulating tape in the manner which is represented in Fig. 4. This tape is omitted from Figs. 1 and 2 in order that theshowing in the latter may be made clearer than it would be if the tape were represented therein.

The operations of connecting the bared or stripped end of the conducting wire or wires of the strand with the bared or stripped portion of the feed wire, and of applying the electrical or insulating tape, are performed withthe'feed wire out of its binder. After they have been performed, the said feed wire is bent and slipped into place in the binder, and the lamp cord is drawn upon to tighten the strand thereof. The end of the conducting wire or wires of the strand of the lamp cord may be soldered to the feed wire, in addition-to being bent around the same, as sometimes is done insimilar cases in the art.

The simple character and construction of my rosette are clearly apparent. It contains no screws or metallic pieces for producing the mechanical and electrical connections between the feeding wires and the lamp cords; the form thereof which is illustrated in the drawings is made entirely in one piece, and hence there are -no separate or detachable parts. The said form thereof, in practice, will be molded of plastic materiahand may be vitrified by bakingas in the case of articlesmade of porcelain. The feed wires and lamp cords are readilyapplied tothe rosette and connected with each other. The portions of the feed wires and of the strands of the lamp cords which are j oined'to each other,

and which are bared or stripped to enable the joint to be made, are located beneath the ears or flanges 5, 5, and hence are separated and insulated by the material of the said ears or flanges from the material of the ceiling or other support to which the rosette is applied. In the case of rosettes heretofore in use the joints have been made in such positions and manner as that adjacent, wood-work has not been protected or shielded, and hence frequent fires have been the result.

It is, in general, considered to be necessary for safety that the two feed wires which communicate with an electric light shall be 10- cated at least two and one-half inches apart at all points. I find that while existing forms of rosettes are so constructed as that the feed wires applied thereto are themselves maintained apart at thedistance stated, there, are contained in such rosettes exposed metallic parts which are in electrical connection with the feed wires, and also are approached to each other at their nearest points considerably under the specified distance. The effect is the same as if the feed wires themselves were brought as closely together as the said connected metallic parts are. In mydevice this defect does notexist. Not only are .the feed wires themselves maintained at the full distance apart, but, inasmuch as the connection of the lamp cord strands with the feed wires is secured by direct attachment of the ends of the conducting wires of said strands to the vfeed wires, and inasmuch, also, as the insulating material forming the covering of the said strands is stripped therefrom only at the extreme outer ends of the strands, as shown clearly in 'Fig. 1 of the drawings, t

follows that at the rosettes there is no 'bridging in part of the space between the two feed wires.

Heretofore the connections of theends of the lamp cord strands within ,the rosette have been so slight and insecure that, for safety, it has been considered necessary, impractice, to tie a knot in the lamp cord above the hole corresponding with the hole-3 in Figs. 1 and 2 of the drawings, in order to form an enlargement incapable of passing through the said hole under strain. In the case of my device, the manner of applying the stran'dsof the lamp cord to the rosette, and of connecting the ends of the strands to the feed .wires, enables the lamp cord to be held effectually without the said knot.

I claim as my invention- 1. Arosette 'havingat opposite Sijdes'thereof ears or flanges provided with p fqjections serving as binders for theifeed wires, an'd also having guides for the lamp cord strands adapted to enable the said strands -to be mechanically applied directly to the feed-wires at points protected by thesaidearsor flanges, substantially as described.

2. Arosette having at oppositesidesthera of ears or flanges provided with feed wire binders consisting of oppositely and alternately placed projections 7, 7 and 8, the last mentioned of which has a retaining lip 9,and also having guides for the lamp cord strands whereby to permit the said strands to be joined to the feed wires at points protected by the said ears or flanges, substantially as described.

3. A rosette having at opposite sides thereof ears or flanges provided with projections serving as binders for the feed wires, and also having an intermediately located hole for the lamp cord, and formed with ledges 10 and holes 11 between said hole for the lamp cord and the binders, and enabling the lampcord strands to be mechanically applied directly to the feed-wires at points protected by the ears or flanges substantially as described.

4. Arosette having at opposite sides thereof cars or flanges 5 provided with feed wire binders consisting of oppositely and alternately placed projections 7, 7 and 8, the last mentioned of which is provided with a retaining lip 9, and also having an intermediately located hole 3 for the lamp cord, and formed between said hole and the binders with ledges l0, and also with holes 11, substantially as described.

5. A rosette having at opposite sides thereof ears or flanges 5, 5 provided with feed wire binders consisting of oppositely and alternately placed projections 7, 7 and S, the last mentioned of which is provided with a lip 9 and groove 12, and also having an intermediately located. hole 3 for the lamp cord, and formed between said hole and the binders with ledges 10, and also with holes 11, substantially as described.

6. The combination with the feed-wires, and a lamp-cord, of a rosette having at opposite sides thereof ears or flanges provided with projections serving as binders for the feedwires, and also having guides for the lampcord strands, the lamp-cord strands being applied to the said guides and mechanically applied directly to the feed-wires at points protected by the said ears or flanges, substantially as described.

7. The combination with the feed-wires, and

a lamp-cord, of a rosette having at opposlte sides thereof ears or flanges provided with feed-wire binders consisting of oppositely and alternately placed projections 7, 7 and 8 between which the feed-wires respectively are placed, the last mentioned projection hav ng a retaining lip 9, the said rosette also having guides for the lamp-cord strands the lampcord strands being applied to the said gu des and joined directly to the feed-wires at polnts protected by the said ears or flanges, substantially as described.

8. The combination with the feed-wlres, and a lamp-cord, of a rosette having at oppos te sides thereof ears or flanges provided with projections serving as binders for the feedwires, and also having an intermedlately located hole through which the lamp-cord is passed, and ledges 10 and holes 11 between said hole for the lamp-cord and the hinders, the lamp-cord strands being applied to the said ledges and holes and mechanically applied directly to the feed-wires at points protected by the said ears or flanges, substantially as described.

9. The combination with the feed-wires and a lamp-cord, of a rosette having at oppos te sides thereof ears or flanges 5 provided with feed-wire binders consisting of oppositely and alternately placed projections 7, 7 and 8, between which the feed-Wires respectively are placed, the last mentioned projection having a retaining lip 9, the said rosette also naving an intermediately located hole 3 through which the lamp-cord is passed, and ledges 10 and holes 11 between said hole 3 and the binders, the lamp-cord strands being applied to the said ledges and holes and joined directly to the feed-wires at points protected by the said ears or flanges, substantially as described.

In testimony whereof I affix my signature 1n presence of two witnesses.

CHARLES N. HAMMOND.

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