US774669A - Hanger for electric-arc lamps. - Google Patents

Description

, No."774,669. PATENTED NOV. 8, 1904.

W. J. JONES.

HANGER FOR ELECTRIC ARC LAMPS.

APPLICATION rum) MAY 24, 1904.

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W. J. JONES. HANGER FOR ELEGTRIGARC LAMPS.

APPLICATION FILED MAY 24. 1904.

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, /f fi m i-Mama BY M W W UNITED STATES Patented November 8, 1904:.

PATENT OFFICE.

WALTER J. J ONES,.OF NEWARK, NEW JERSEY, ASSIGNOR TO ALBERT S. MARTEN, OF EAST ORANGE, NEW JERSEY.

HANGER FOR ELECTR lC-ARC LAMPS.

SPECIFICATION formingpart of Letters Patent No. 774,669, dated November 8, 1904.

Application filed May 24. 1904. Serial No 209,534. (No model.)

.1 all whom it may concern:

Be it known that I, WALTER J. J oivns, a citizen of the United States, residing at Newark,

' in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in High-Voltage Hangers for Electric Lamps; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanyingdrawings, and to figures of reference marked thereon, which form a part of this specification.

The objects of this invention are to more effectually prevent accident because of contact with the live conductors, to enable a more positive cut-out for series arc-lamps employing direct and alternating currents of high voltage, and to secure other advantages and results, some of which may be referred to hereinafter in connection with the description of the working parts.

The invention consists in the improved high-voltage hanger for electric lamps and in the arrangements and combinations of parts of the same, all substantially aswill be hereinafter set forth, and finally embraced'in the clauses of the claim.

Referring to the accompanying drawings,

in which like figures of reference indicate cor responding parts in each of the several figures, Figure 1 is a top view of the lowerplate of the hanger and certain of its connections. Fig. 2 is a section of the same, taken on line Fig. 3 is a detail section taken at line y, Fig. 2; and Fig. 4: is a detail section of the plug, taken on line .2, Fig. 1. Fig. 5 is an irregular section the lower part of which is taken at line .2 of Fig. 6, and Fig. 6 is a bottom plan of the improved hanger.

In said drawings,"1O indicates a cast iron or metal bell adapted to be detachably suspended, by means of the threaded boss 11, from any suitable fixture or support. At its .lower end said'bell-is flanged, as at 12, to receive the plate 13 of insulation, said plate 13 fitting neatly within said flange and being removably held therein by suitable keepers 14.

Toincrease the strength of the plate 13, the same may be reinforced by means of a metal I plate 15, preferably seated on the upper inner side of said insulated plate 13. Said reinforcing-plate may be applied to the insulated plate by means of screws 16 or in any other suitable manner adapted to insure safety to the lamp should the insulated plate he accidentally broken, the said;reinforcing-plate being so formed and arranged that it will drop down upon the said keepers 14, and thus prevent the lamp from putting an undue strain on the live conducting-wires in connection with the binding-posts 17 17.

The lamp (not shown) is suspended from the threaded support 18, which may resemble a bolt, as shown in Fig. 5, or it may be of any other suitable construction, and is in metallic connection with the wires attached to thebinding-posts. The binding-posts are in metallic connection with resilient contact-arms 1919, whichextend to one side of the plate 13 and being bent toward one another and turned upward enterthrough a slot or passage 20 in the insulation and are again bent to retain a.plug 21, the lateral extensions from the binding-posts being-marked 22 in Fig. 6, the approaching-extensions being marked 23 in the same figure, the upward bends or extensions 24 in Figs. 2 and 5 and the retainingbends by whichthe plug is supported being marked 25 in said Figs. 2 and 5. The inner ends of said arms 19 are adapted to normally contact one with the other, as indicated at 26 in Fig. 5, and when in such contact the current flows through said arms directly to the binding-posts 17 and wires in connection therewith, positively cutting out the lamp in connection w1th the support 18, and thereby enabling one to manipulate said lamp without ing shown,) said lamp is positively cut out l and can be removed for repair without danger. The insulated plate 13 is composed of any suitable high-voltage compound.

Positive and negative signs may be molded on the plate 13, near the respective binding-posts, and the conducting-wires may be one red and the other black to enable connections to be properly made. The arms of the plug 21 may be inclined in plan, and the contact-arms 19 may be correspondingly inclined in plan also to insurea proper connection.

Having thus described the invention, what I claim as new is 1. The improved lamp-support comprising an insulated plate, a lamp-supporting bolt arranged at the center thereof, binding-posts in connection with said plate, conductive arms extending from said posts normally into contact and a plug having arms adapted to connect with the first said arms and conductingwires adapted to connect the last said arms with the lamp, substantially as set forth.

2. The lamp-hanger,comprising a plate having means for supporting the lamp, normally closed terminal arms adapted to connect with the wires of an electric circuit, a plug adapted to be electrically connected with a lamp and to open said closed arms and conduct the electric fluid to the connections with said lamp.

3. In a hanger, the combination with a plate of insulation, and means attached thereto for supporting the lamp, of normally closed terminals of an electric circuit and a plug in connection with the lamp and adapted to open the said terminals and conduct the current from said terminals to the lamp connections, substantially as set forth.

a. In a hanger, the combination with a plate of insulation, of a suspensory lamp-support attached to said plate, a plug in connection with terminals of an electric circuit and said terminals adapted to contact on the withdrawal of the plug and short-circuit the lamp.

5. The combination with the bell and insulated plate fitting therein, binding-posts, arms extending therefrom through said plate and adapted to contact at their free ends to complete a circuit, of a plug having arms adapted to separate or open the arms on the insulated plate, the plug-arms corresponding with the plate-arms and adapted to contact therewith, one plug-arm with one plate arm and the other plug-arm with the other plate-arm, and electrical connections of the plug-arms for the lamp, substantially as set forth.

6. Alamp support or hangerhaving therein normally closed contacts or terminals, a plug having contacts or terminals, each adapted to connect with the lamp and to engage with one of the first said terminals or contacts and cooperate in holding the first said terminals apart or open, substantially as set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 4th day of May, 19%.

WALTER J. JONES.

Witnesses:

CHARLES H. PELL, CLEMENT Bnncnon'r.

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