US257548A - Island - Google Patents

Description

(No Model.) I

J. R. BROWN.

AUTOMATIC FIRE EXTINGUISHBR.-

Patented May 9, 1882.

INVENTQR Fig. l

WITNESSES N, warms. mwuma n wf Washington, 0 C.

NITED STATES PATENT OFFICE.

I JOSEPH It. BROlVN, OF PROVIDENCE, RHODE ISLAND.

AUTOMATIC FIRE-EXTINGUISHER.

SPECIFICATION forming part of Letters Patent No. 257,548, dated May 9, 1882,

Application filed June 13, 1881.

To all whom it may concern:

Beit known that I, JOSEPH R. BROWN, of the city and county of Providence, and State of Rhode Island, have invented a new and useful Improvement in Automatic Fire-Extim guishers; and I hereby declare that thefollowin g is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification.

This invention has reference to a device which,when secured to the ends of the branches of a system of pipes distributed over a building and connected with a water-supply, will close the water-outlet, and will, by the action of heat on a solder made of materials fusible at a low temperature, release the device, so that the water-outlet will be opened automatically and the water will be thrown on the fire in a divided state, so as to extinguish the same.

The invention consists in a piece of pipe or nipple provided on one end with a screwthread, closed on the other end and provided with ports secured within a sleeve by a solder fusible at a low temperature, the sleeve being provided with one or more distributers and constructed so that the pressure of the water will move the sleeve and place the outlets to the distributers opposite the ports, so as to discharge the water, as will be more fully set forth hereinafter.

Figure 1 is a sectional view of myirnproved automatic fire-extinguisher, showing the sleeve secured by solder to the pipe or nipple and provided with two outlets, to which rosesprinklers are secured. Fig. 2 is a sectional view of an automatic fire-extinguisher after my present invention, shown released and in action, the sleeve being provided with two curved pipes, one of which has a contracted outlet and the other an expanded outlet, placed one opposite the other, so that the two streams of water are forced one against the other, and the water is thereby dispersed over a large area in a divided state and thrown on the fire.

In the drawings, a is the pipe forming the water-inlet. It is provided at one end with a screw-thread, by which it can be secured to the usual pipe-fitting forming the end of the water-supply pipe. On the opposite end it is provided with the ports 6 b, the end being closed so as to compel the water to pass (No model.)

through the ports. Below the ports b b the pipe wis enlarged so as to nearly fit the interior of the sleeve 0, and the sleeve cis secured to this enlargement at d by means ofa solder fusible at a low temperature. The upper end of the sleeve 0 is enlarged, so as to present a large area of surface to the water, by the pressure of which the sleeve is moved as soon as the action of heat on the solder releases the same. Secured to the sleeve 0 is the chamber 0, provided' with outlets ff, to which any of the various forms of distributers may be secured.

g g in Fig. 1 represent the ordinary perforated rose-sprinklers, by which the water is forced through fine holes in every direction. (Rotating sprinklers of the well-known forms may be used in place of the rose-sprinklers, and, if desired, perforated pipes may be used to distribute the water.) h h in Fig. 2 represent a peculiar device, which has proved well adapted to distribute water over a large area. It consists of two curved pipes, the centers of the outlets of which are opposite each other. One of the let and the other with a contracted outlet. The waterissuin g from these outlets under pressure impinges one stream against the other, and both are deflected and dispersed over a large area. As the openings are large, they are not liable to be stopped up either by dust or sediment, and their action can be at all times relied upon.

The enlargement on the pipe at forms a shoulder or stop, by which the movement of the sleeve and the distributers is limited, as is shown in Fig. 2.

The operation of my automatic fire-extinguisher is as follows: The sleeve 0 is secured by fusible solder to the pipe a, the chamber 6 is now screwed to the sleeve, as shown in Fig. 1, and the whole secured to the outlets of the system of pipes, in which water is kept under pressure. When a fire breaks out the heat will quickly melt the solder, the pressure of the water will force the sleeve forward until the enlargement on the pipe a encounters the chamber 0, as shown inFig. 2, when the water will flow from the pipe athrongh the ports I) b, be distributed by the distributers secured to the outlets of the chamber 6, and thrown in a spray on the tire, where it'is rapidly made into pipes is provided with a flaring enlarged outsteam, and with the succeeding water quickly extinguish the fire.

The whole device is automaticin its action, cannot get out of order, and will extinguish any fire if the water-supply is maintained.

The ports I) b are. preferably made longand narrow. They may form fine slits, so as to act as strainers, and their area should be made much larger than the area of the pipe a so that when retaining impurities they will still allow a free passage for all the water required.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. In an automatic fire extinguisher, the

combination, with a distributer, of an inletpipe, closed at the end and provided withnarrow ports through which the Water passes, the sleeve 0, and a seal made of a solder fusible at a low temperature, as and for the purpose set forth.

2. The combination, with the pipe (1, pro vided with the enlargement at d, of the sleeve 0, secured to the enlargement by a solder fusible at a low temperature, and the chamber 0, provided with outlets, to which (listributers are secured, the whole constructed to form an automatic fire-extinguisher, as described.

JOSEPH R. BROWN.

Witnesses:

J. A. MILLER, Jr., WM. L. Ooor.

Images