US675738A - Combination water-tight junction-box, receptacle, and fixture. - Google Patents

Description

No; 675,738. Patented June 4, l9 0l. A. E. JAHL. GOI BINATIUN WATER TIGHT JUNCTION BOX, RECEPTAGLE, AND FIXTURE.

(Applicl-tion filed Hat. 9, 1901.)

(No Model.)

WITNESSES R NVE I I Br- I ATTORNEYS UNIT ED STATES PATENT OF IcE.

ANNA E. JAHL, or [NEW YORK, N. Y.

COMBINATION WATER-Hem JUNCTION-BOX, RECEPTACLE, AND FIXTURE.

SPECIFICATION forming part of Letters Patent No..675,'738, dated June 4:, 1901.

Application filed March 9, 1901.

T0 at whom, it may concern:

Be it known that I, ANNA E. JAHL, a citizen. of the United States, and a resident of the. city of New York, borough of Manhattan, in the county and State'of New York, have invented a new and ImprovedOombination Water-Tight J unction-Box, Receptacle, and Fixture, of which the following is a full, clear, and exact descriptionl V The invention relates to the transmission of electric currents; and its object is to provide a new and improved combination watertight junction-box, receptacle, and fixture which is simple and durable in construction, more especially designed for use in places subject to considerable moisture, (steam or water,) as along the shore, marine vessels, subterranean and submarine work, and arranged to insure at all times proper connection and in case of an overload'in the main current prevent breakage of the electric lam p by burning out a fuse, which can be cheaply and readily replaced.

The invention consists of novel features and parts and combinations of the same, as will be fully described hereinafter and then pointed out in the claims.

A practical embodiment of the invention'is represented in the accompanying drawings, forming a part of this specification,in which similar characters of reference indicate cofresponding parts in all the views.

Figure 1 is a side elevation of the improvement. Fig. 2 is an enlarged sectional side elevation of the same on the line 2 2 in Fig.3, and Fig. 3 is a plan view of the same with the cover removed.

The improved device consists, essentially, of a box A, preferably made of metal and provided with a cover Bfor closingihe box and for giving access thereto for adjustments and repairs whenever necessary. The ends of the box A are provided with threaded bosses A A in which screw the conduits O 0, through which extend the main-line wires D D and D D the ends of the main-line wires D D being connected to binding-posts E E, secured on a base F, of porcelain or other insulating material, screwed or otherwise attached to the bottom of the box A. The ends of the main-line wires D D are connected to binding-posts E E likewise held on the base F,

semi in. 50.459. (N0 model.)

and said sets of binding-posts E E are connected with each other by a metallic bar E and the binding-posts E E are connected with each other by a bar Branch-line wires D D extend through branch. conduits C C respectively screwed or otherwise secured in bosses A A on the sides of the box A, and the ends of the branch wires D D are secured on binding-posts G G, respectively secured on the base F, separate from the binding-posts E Eand E E. ing-posts G G" are connected with plates G G secured to the base F and carrying at their free ends clamps Gr G respectively, for the glass-tube-covered fuses H H, connected with clamps E E respectively, of which the clamp E forms part of the connecting-bar E and the clamp E forms part of the connecting-bar E By the arrangement described the main current through the main wires D D passes through the binding-posts E E and the connecting-bar E and also passes through the clamp E fuse H, clamp G, and plate G to the binding-post G, and then to the branch wire D to its destination, and in a similar manner the mainline current passes through the wires D D the binding-posts E E and the connecting bar E and also passes through the clamp E fuse H, clamp G plate G to thebinding-post G, and then by the wire D to its destination.

Now it is evident that in case one of the main-line currents far exceeds a normal strengththen no damage occurs to the devices connected with the branch-line circuits,

as the fuses H or Hburn out before the current can pass to the branch-line wires.

The plate G is provided with a metallic arm I, connected with a metallic socket J, for carrying an electric lamp K of any approved construction, said electric lamp also making connection with the arm I, attached to the plateG so that when the lamp K is secured in the socket then the circuit for the lamp is closed, the current passing through the arm I and socket J to one pole of the filament, the other pole of whichis electrically connected to the arm I and the plate G extends upward through an openingB in the cover B, and the bulb of the lamp is inclosed within a globe L, screwing at its lower end The lamp K The bind- I upon an internal thread on a boss B of the cover B, and this globe L is contained within a guard 0, preferably made of wires, provided at their lower ends with a ring screwing on an external thread on the boss 13*.

When using the device as a" water-tight.

- ized either as a four-way j unction-box or as a three-way j unction-box. In the latter case one of the bosses A or A is closed by a suitable plug.

When using the device as a steam or water fixture, then the lamp K is screwed to the socket J and the globe L is screwed in position on the boss B the inner end of the globe abutting against a gasket N, so as to make the box Water-tight at this particular joint. If the globe is to be guarded, then the guard O is screwed on the boss 13 as previously explained, and shown in the drawings.

In case it is desired to use the device as a steam and water tight receptacle for electric light, heat, or power then an attachment-plug is screwed to the socket J, the wires being attached to the plug and leading to a cap having a rubber gland leading to the boss B Any desired combination can be made to form the device into a junction-box fixture or into a junction-box and receptacle or the like. I Having thus fully described my invention,

branch-line binding-posts, a socket connected with said set of connected branch-line binding-posts, an electric lamp adapted to engage said socket and extending with its bulb through an opening in the cover, and aglobe removably secured to the cover and inclosing said electric lamp, as set forth.

2. A device of the class described, comprisprising a box having a removable cover, an insulating-base in said box, a set of connected main-line binding-posts, a set of connected branch-line binding-posts, a socket connected with said set of connected branch-line binding-posts, an electric lamp adapted to engage saidsocket and extending with its bulb through an opening in the cover, a'globe removably secured to the cover and inclosing said electric lamp, and a guard removably secured to the'cover and surrounding said globe, as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ANNA E. JAHL.

Witnesses:

F. S. GASSAWAY, W. B. JONES.

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