US960808A - Incandescent-lamp receptacle. - Google Patents

Description

H.U.BADEAU. INGANDESGENT LAMP REGEPTAGLE.

APPLICATION FILED DEG. 23,1909.

960,808. Patented June 7, 1910.

- 2 SHEETS-SHEET 1,

ATTORNEYS H. U. BADEAUn INCANDESGBNT LAMP REGEPTAULE.

APPLIOATIO N FILED 1330.23.1909.

960,808. Patented June *1,

q SHEETS-$3331 2.

- INVENTOH WITNESSES ATTORNEYS UNITED STATES PATENT OFFICE.

HABBY U. BADEAU, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO THE BRYANT LECTRIC COMPANY, OF BRIDGEPORT, CONNECTICUT, A CORPORATION OF- CON- Patented June 7, 1910.

NECTICUT.

. INCANDESCENT-LAJLP BECEPTACLE.

960,808. Specification ofietterslatent.

Application filed December 23, 1909. Serial No. 534,655.

To all whom it concern:

Be it known that I, HARRY U. BADEAU, a citizen of the United. States of America, and residing in the city of Bridgeport, in the county of Fairfield and State of Connecticut, have invented a certain new and useful Improvement in Incandescent-Lamp Receptacles, of which the following is a specification.

My invention relates to sockets for incandescent lamps and particularly to a receptacle'intended for use in series lighting.

The object of my invention is to provide an improved receptacle for this purpose possessingiseveral advantages of construction and operation, some of which are pointed out hereinafter.

In the accompanying drawings, Figure. 1 is a vertical sectiorjof a rece tacle in which my invention is incorporate the parts being d e tache d; Fig. 2 ;is an inverted plan [1 the upper pdrtion of the receptacle;

Fig. 3 is a perspective of. a detail drawn to enlarged scale; Fig. 4 is a side elevation of a modified structure, with parts detached and partially in section to show the modified structure; and Fig. 5 is a side elevation at right angles to Fig. 4, showing only the upper portion and this partially broken away.

In aserles lighting system it is desirable to provide means for completing the circuit in case the filament of one lamp is rendered defective, for example, by burning out or breaking and also to provide means for closing the circuit so as not to interrupt service of the remaining lamps in the; series in case one of the lamps is removed from its socket. Furthermore it adds an element of safety if the contacts are so arranged that no arc is formed when the lamp is removed from its socket. It is highly des'irable also that the contacts, by means of which the circuit is maintained, should be protected from the corroding. action of the atmos here and from the dirt which is apt to fin its way to the receptacle when suspended in 'the highway as is customarily the case, and also that the method'of connecting the lam socket to the receptacle be such that the lament be subjected to the least. possible jar or sudden vibration. It will be .seen that these advantages are all secured by the resentconstruction.

In the embodiment of my invention shown in Figs. 1

- through to 3 inclusive, the reoe tacle comprises a canopy A preferably 0 insulating material and provided with 9. depending skirt a to form a rain shed. On the inner face of the canopy aresecured conducting strips p and 12 the former being of spring metal and being free to rise out ofcontact with the strip pfiinto the recess 0. Wire terminals t, -t are secured directly to the plates 72,17 by the. screws 8, 8 which are let in'to recesses in the upper face of the canop'y. A screw shell'Ci's secured in position and in contact with the strip 12 by screws passing erforations in the canopy and through is e forked inner end of the strip p which lies over the baseof the shell. The lamp base B, also referably of insulating material, carries a amp socket of common type comprising a screw shell G- and central-contact D. The shell G is secured by means of bolts 9 the nuts on theother ends of which en age an annular flange on the screw plug 15 mounted on the boss '1' of the base. The center contact D is secured by the rod 'H which passes through an axial perforation of the boss F and projects be yond the end thereof. A disk I with spring contact lug i cut therefrom is carried by the rod H in any suitable fashion, for instance by means of nuts threaded thereon, and is shaped so that the spring lug i lies over the inturned edge of the screw plug 1 i or otherwise. It is obvious that upon screwing the plug E into the shell O ths rod H leading to the center contact D for the lamp, raises the'strip p from its normal engagement with the strip p and leads the current therefrom to the center contact D, while the current from the stri p assing through the shell C, plug E an the olts g is led to the lamp socket shell G; Should the lamp filament be injured from "any cause and the flow of ciirrent therethrough be interrupted, the current tension between the plug E and the disk contact 'lugji would become so great that the onion paperwould break down, the lamp thus be shunted and the service of current to the remaining lamps in the series go on without interruption. Obviously also the-lamp base B may be unscrewed Without danger of arcing 'ClllllI1g the currentservice, since the two stripsp and 29 return into contact with each other before the plug E leaves the shell C. The shell C and the base B are protected from dust by the skirt 1) which-irrcloses them when the plug E is screwed into the receptacle C. V

In the modification shown Figs. 4t and 5,,

the upper portion of the receptacle is made independent of the lamp socket base proper, and comprises. an independent base M which is recessed to receive the screw shell C and carries on its upper face the strips 7), Fl, the center contact rod H passing through a perforationm; An independent canopy N is provided to cover the upper contacts and protect them from moisture and dirt. The skirt b bears against a rubber gasket It and thus incloses the shell C and contacts on the base B.

' It will be noted that in both constructions illustrated, the lain socket isscrewed into the receptacle. This is afeature of great practical value inasmuch as it avoids all shock totheilamp such as occurs in a snap connection, which 1s a common-form now employed in sockets of this type. 'lhes'ud den jar imparted by such a snap, is su'liicient to rupture the filament inmany cases, particularly where a frail filament such as tungsten is employed in the lamp.

Obviously my invention may be embodied in other structures'than the particular forms shown without departing from my invention and I do notlimit myself to the details illustrated and above described, but claim as my invention 1. In series incandescent lightin a re.

. ceptacle having automatic line closing contacts, an independent. lamp socket and means to establish the socket circuit upon the parting of said line closing contacts, in combination with means -to protect said automatic line closing contacts from the action of the elements.

2. In series incandescent lighting, a receptacle having automatic line closing contacts, a lamp socket and means to part said line closing contacts and establish the lamp circuit therefrom, said line closing contacts being inclosed and protected from the action of the elements, substantially as described.

3. In a device of the character described, a receptacle having line closing contacts and an independent lamp receptacle adapted to be secured thereto and brought into the line circuit, said receptacles being shaped to inclose their cooperating contacts when said receptacles are secured together, whereby the device is rendered substantially weather proof, as described.

4:. In a device of the character described,

a recessed receptacle having automatic line G. IV. Goonmnon, II. WV. Gonnseonooon.

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