US402420A - Insulating cut-out joint - Google Patents

Description

(No Model.)

H. M. & R. DOUBLEDAY.

INSULATING GUT-OUT JOINT.

1%1ten'ed Apr. 30, 1889.

ve/z 227% UNITED STATES PATENT OFFICE.

HARRY M. DOFBLEDAY AND RUSSELL DOUBLEDAY, OF PITTSBURG, PENN SYLVANIA.

INSULATING CUT-OUT JOINT.

SPECIFICATION forming part of Letters Patent No. 402,420, dated April 30, 1889.

Application tiled September 18, 1883. Serial No. 285,732. (No model.)

To @ZZ when?, it may concern:

De it known that we, HARRY M. DOUBLE- DAY and RUssELL DOUELEDAY, citizens of the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a certain new and linproved Insulating Cut-Out Joint, oi' which the following description, taken in connection with the accornpanying drawings, is a speciiication.

Our invention relatos to a combined cutout for incandescent electric lamps and insulatingjoint, which is intended to be intcrpoY lated between the gas-pipe terminal and gasxture or any other similar structure.

The objects of our invention are to provide an article which will be simple, cheap, and effective, and at the saine time durable, easily applied, and neat in appearance; and with these ends in view we construct our device substantially as follows:

A brass sleeve adapted to screw over the gas-pipe terminal carries a surrounding insulating-jacl ct provided with a broad circumferential ila-nge for carrying the conductors and ordinary cut-out connections, while an outer brass sleeve surrounds the insulator and basa contracted lower end for the reception of the gas-bracket or continuation of the gas-pipe. A cap having a central opening for passage of lower end or' the outer sleeve conceals the connectors, is secured to the periphery of t ie insulatorflange, and has an insulating-bushing en one side, through which the lamp-conductors pass at an angle, when they may be bent to retain the cap in position.

The novel features of our d evicc are particularly pointed out in the claims, being ilirst fully described with. reference to the accom- )anying drawings, in whichw Figure l represents our device as applied `no an ordinary gas-hanger- Fig. Il is a top ,fiew of the device detached. Fig. lll is a ottom view of the saine with the cap renoved. Fig. IY is an axial section on the respect ively the gas-pipe terminal and any forni of gashanger.

3 is a brass sleeve having an ordinary-faced head, 4, adapting it to receive a wrench for screwing it on the terminal, corresponding male and female threading being formed on the terminal and sleeve, respectively. This sleeve may also be provided with a shoulder for the abutment of the terminal, as shown, and is preferably made inwardly 'flaring at its lower end, whereby an enlarged end is formed for contact with the end ot the gaslixture, or, preferably, against a gasket, 3i, supported on the shoulder 9 ot the outer sleeve. The end of the fixture may also abut against this gasket.

The exterior of sleeve 3 is screw-threaded throughout, and on it is iitted the correspondingly screw-threaded insulating-jacket 5, which has a broad circumferential ilange, 6, the inner edge ol which abuts against the head l cit' the inner sleeve. The insulator is also externally screw-threaded, which adapts it to receive the coirespondingly-threaded outer brass sleeve, T, the upper end oli which tits up under the inner part oli the flange 6, and the lower end of which is contracted to i'orm the above-mentioned shoulders 9 and interiorly-screw-threaded neck S l'or the reception oi' gasfixture l is the tinted collar `for concealing the connectors and cut-out and improving the appearance of the device. This collar has a central opening for the passage of the sleeve 7, and is fitted to the periphery of the insulator-flange and secured in place by means of bayonet or similar joints.

l l() are supplyavires,which pass, respect .ively, thron gh apertures l? 1S to connect with biiuling-scrcws 19 2O on connecting-plates 2l 22. These plates are secured tothe bottom of the flange by means ot screws 2? 2i, passed through the tlange and entering correspondingly-threaded apertures in the plates. A third connecting-plate, 2S, secured by a screw, 29, similarly to the plates 2l 22, has bindingscrews 27 SO. Freni the biinline-screw 27 on plate 28 to a binding-screw, 25,011 plate 2l. is run the ordinary fusible cut-out wire, 2G.

are the lamp-wires, depending from binding-screws 30 3l on plates 28 and 22, respectively.

ll is an insulating-bushing screwed or otherwise fastened in the collar l0. The binding-screws 30 3l are placed on opposite sides of the bushing, so that the wires passing through the latter at an angle and then being entwined around the fixture provide an effective key to prevent the movement of the collar in either direction, and hence to prevent the disengagement of the saine from the fiange. On the otherl hand, the collar may be freely 'turned and disengaged upon the loosening of the wires slightly to relieve the tension.

While the above-specified construction may be preferable, it is obvious that the principles of our invention are susceptible of various modifications of details of construction, which are to be determined by circumstances and the nature of the place to which the deviceis to be applied, the main object of our invention being to combine an electric cut-out with an effective insulating-joint.

Although but one lamp is described, it is Vevident that two can be connected to the same joint on opposite sides, the only necessary change being the addition of a conductorplate and cut-out wire, if desired; or the same could be effected by the simple addition of another insulated binding-screw, or by separating the first plate beyond the cut-out. It may also be desired to supply two lamps from a single pair of conductors, as shown.

The insulators used are preferably hard rubber; but they may be of any other suitable substance. The neck 8 of the outer sleeve may be cxteriorly screw-threaded, if more convenient. The washer 34 may be removed and the ends of the pipes may be brought together, though the connection shown in the drawings is preferable, inasmuch as the fixture is completely insulated from the gas-pipe, and if any leakage occurs no groundconnection can possibly be made and the leak will therefore do no harm. It will also be noticed that the washer 34, which may be of asbestus, soft rubber, leather, or other suitable material, will make a gas-tight joint between the parts 1 2.

If it is desired, the conductors may be made n to pass through the interior of the pipe from the cut-out. It will also be seenthat the insulator could be used without any bracket or xture, and a cap or disk on the shoulder 9 be used to stop the flow of gas.

Having thus described our invention, the following is what we claimas new therein and desire to secure by Letters Patent:

l. In a combined insulating-joint and cutout for electric lamps, the combination of a gas-pipe terminal, l, sleeve 3, screwing on the terminal, insulating-jacket 5, screwing on the sleeve 3 and having flange G, for carrying the connectors and cut-out, and outer sleeve, 7, screwing on the insulator 5 and having shoulder 9 and neck 8, the fixture 2, screwed into ders 9 and impinged by sleeve 3 and end of fixture 2, the cap l0, secured to the flange 6 and having the central opening for passage of the joint, and an eccentric opening in which is the bushing ll, through which the lampsupplying conductors 32 33 pass from the connectors, as hereinbefore set forth.

2. The combination, with the gas-pipe terminal l and gas-fixture 2, of the interposed insulating-joint and cut-out consisting of sleeve 3, screwed on the terminal, insulatingjacket 5, screwed on the sleeve and carrying the supplywires, connectors, cutout, and lamp-wires, the outer sleeve, 7, screwed 'on the insulator and supporting the gas fixtures, and cap l0, for concealing the connectors, having central opening for passage of fixture and eccentric opening for conductors, as set forth. y

3. The combination of` a suitable support, l, sleeve 3, screwing on said support, insulating-jacket 5, screwing on sleeve 3, and cap l0, surrounding the insulator, having a central opening for the joint, said insulator having suitable lelectrical connections and carrying the cut-out, and the lamp-conductors passing through an eccentric opening in the cap, all substantially as herein described.

4. The combination, with the terminal 1 and gas-fixture 2, of an insulating-jacket carried by the terminal, a sleeve carried by the insulator and supporting the gas-fixture, and a transverse surrounding fiange, 6, formed on the insulating-sleeve and carrying the cut-out, and connections whereby the electric lamp is connected on the opposite side of the insulator from the terminal, as fully explained.

5. In combination with a gas-fixture sup ply-pipe, a screw-threaded insulating-sleeve having a passage therethrough interpolated between two portions of the fixture and having a broad insulating surrounding 'flange formed integrally therewith for supporting the connections for an electric lamp, whereby a continuous passage for gas is maintained without affording ground-connection for leakage.

6. In combination with a gas-fixture, an insulating-sleeve interposed between two parts of the fixture to completely insulate them, said insulator having a broad lateral insulating-fiange formed integrally therewith, supporting the cut-out and other connectors for an elect-ric lamp, as shown and described.

7. In an insulating-joint and cut-out, the combination, with an insulating-support, 6, carrying the conductors, as' explained, and having a cylindrical portion for coupling the gas fixture and pipe, of -a cap, 10, having a central opening for the passage of the fixture and an opening without the center for the passage of the lamp-conductors, as explained.

8. In a cut-out for electric lamps, the com bination, with the support 8, carrying the electrical connections and lamp -supplying IOO IIO

n.) on

conductors on o, of a cap, l0, having a passage for the conductors 32 33 and secured to the support by bayonet-j oints extending f rom said recess, the said conductors being secured to the support to one side of their passage through the cap, whereby upon being bent they forni an effective stop to the movement of the cap, as explained.

9. ln a cut-out for electric lamps, the combination, with the support carrying the cutout wire and suitable connectors,of the lampsupplying wires depending Jfroin the support and the cap fitting over the support and se* cured thereto by a catch and having' an eccentric opening' for the lampavires, the said lamp-wires being attached to the support on opposite sides of the opening through which they pass, whereby they prevent the moyement and consequent disengagement of the cap, as explained lO. In a combinedinsulatiugfioint and eut- HARRY M. DOUBLEDAY. RUSSELL DOUBLEDAY.

Witnesses:

RoBT. C. Moonn, GEO. L. STErHENsoN,

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