US1230469A - Sprinkler for automatic fire-extinguishing systems. - Google Patents

Description

W. ESTY, DECD.

C. w. TYLER. EXECUTOR- SPRINKLER FOR AUTOMATIC FIRE EXTINGUSHING SYSTEMS.

APPUCATIQN FILED A UG.(21 1916- RENEWED MAY 7| 191. 1,230,469. Patented June 19, 1917.

2 SHEETS-SHEET I.

Willem? E g warm w. ESTY. DECD.

APPLICATION FILED AUGJZ. l9l6- RENEWED M-AY 7, I91

Patented June 19, 1917.

2 SHEETS-SHEET 2.

(1302 new UNITED STATES PATENT oF oE.

WILLIAM ESTY, OF LACONIA, NEW HAMPSHIRE; CHARLES WTTYLER, EXECUTOR OF SAID WILLIAM ESTY, DECEASED, ASSIGNOB TO ESTY SPRINKLER COMPANY, OF LACONIA, NEW HAMPSHIRE, A CORPORATION OF NEW HAMPSHIRE.

SPRINKLER FOB AUTOMATIC FIRE-EXTINGUISHING sY's'rEms.

Specification of Letters Patent.

Patented une'19, 1917.

Application filed August 12, 1916, Serial No. 114,582. Renewed May 7, 1917. Serial 1W0. 167,065.

To all whom it may concern;

Be it known that I, WILLIAM Es'rY, of

Laconia, in the county of Belknap and State of New Hampshire, have invented a new- Sprinkler for Automatic Fire-Extinguishing Systems, of which the following is a specification.

' Where automatic fire extinguishing systems equipped with sprinkler heads having fusible valve retainers have been used in buildings in which destructive gases abound in quantities, in the course of a few years the sprinkler heads become so loaded with foreign matter that they fail to function properly in the event of a fire. It has heretoforebeen proposed to protect the sprinkler heads from the action of gases by means of a cover of glass. The present invention consists in improvements upon.covered sprin kler heads. The object of the improvement is to insure the complete protection of the valve, valve seat, and fusible element of the sprinkler; and to insure the prompt release and removal of the cover in the event of a fire so that the escape of water will notbe substantially delayed.

The improvements are illustrated in the accompanying drawings wherein Figure 1, is a side elevation of the improved covered sprinkler head, parts being broken away to facilitate the'illustration. Fig. 2, is a central longitudinal section. Figs. 3 and 10,

tween the valve and an abutment F, carried by a frame G. This frame has a screw threaded collar H, which screws on to the section C, of the fitting. The side arms I, of the frame G, which connect the collar H, and the abutment F, are rendered resilient, each having a plurality of reentrant bends J. By means of these bends the desired uniform recarries a distributer K.

are concentric.

diameter than the disk Q, so that an annular groove exists between the two flanges T, and U. The lower open end of the glass silienceisreadily secured. The frame also The strut consists of a multiplying lever L, a valve lever M, and a frame lever N, united together by fusible solder.

The sprinkler head, as thus far described,

. similarto that set forth in the above ment1oned patent, excepting that in the present instance,- the resilienceof the frame is secured bythe plurality of reentrant'bendsof each of the side arms.

The cover 0, surrounds and covers the entire resilient frame, the valve; the: valve seat, and the fusible strut. It is desirably .made of glass to resistthe action of injurious gases. It is supported by two noncorrodible German silver disks P, and Q.

Theouter disk P, has-a circular opening R (Fig; 5), at its middle which vfits over the section C, of the fitting, so that the disk rests upon the shoulder B. The'inner disk Q, like- I wise has acentral circular openin S (Fig. 4:), which fits overv the section C the inner disk Q, rests upon the outer disk P,

Both disks having been put in place, the valve, strut and resilient frame are assembled, and the resilient frame is screweddown on the section C, and tightly against the inis seated firmly and with an air tight fit upon the shoulder, B, and the two disks .are firmly clamped together. At the same so that so .ner disk Q. In this way, the outer disk P, M

time, the requisite and predetermined tension. 1

is put upon the strut through the resilient frame in the manner explained 'in the afore said prior-patent.

i The outer disk P, has an upturned an- Q, has a similar flange U. The two flanges The disk P,'is of greater cover fits into this groove. The width of the groove is. greater than the thickness of the glass, thus providing space for the insertion of a fusible cement such as paraflin wax, which is indicated at V. This fusible cement makes a gas tight joint between the glass cover and the supporting disks. At the same time the glass cover is firmly held in place without danger of moving laterally as the result of jarring.

90 nular .peripheral flange T. The inner disk c ll:

In this manner thevalvo, valve seat, and fusible strut are inclosed in a gas tight chamber.-

ln case of a fire the fusible cement V, readily melts, the heat is radiated through the glass and the fusible strut is released, thus permitting the valve to open When the valve is-open the out-rushing water (or air if a dry system is employed) blows ofi the glass cover which is readily displaced because of the melting of the cement V,

I claim:

1. A sprinkler for automatic fire extin guishing systems having, in combination, a fitting with a valve seat at its end and an outwardly projectingannular shoulder, and a screw threaded section between said shoulder and the valve seatfa no'n-corrodible disk with a peripheral flange resting upon the said shoulder; a second non-corrodible disk with a peripheral flange resting upon the first named disk, the outer disk being of greater diameter than the inner disk so that an anular space or groove is constituted between the two flanges; a valve on the valve seat of the fitting; a resilient frame screwing on to the aforesaid screw threaded sec' tion of the fitting and seating against. the inner disk, thereby making an air tight joint between the disks and the shoulder of the fitting; a separable fusible strut between the valve and the resilient frame; a glass covl: fitting over the resilient frame, the valve seat, and the strut, the open edge of said cover fitting into the groove between the flanges of the two disks; and a fusible cement in said groove forming an air tight joint between the glass cover and the disks.

2. A sprinkler for automatic fire extinguishing systems having a resilient frame with two side arms, each side arm having a plurality of re'ntrant bends.

3. A sprinkler for automatic fire extinguishing systems having, in'combination, a fitting with r. valve seat at its end and an outwardly projecting annular shoulder, and a screw threaded section between said shoulder and the valve seat; a disk with a peripheral flange resting upon the said shoulder; a second disk with a peripheral flange resting upon the first named disk, the-outer disk being of greater diameter than the innor disk so that an annular space or groove isronstituted between the two flanges; a valve on the valve seat of the fitting; a frame screwing on to the aforesaid screw threaded section of the fitting and seating against the inner diskythereby' making an mousse air tight joint between the disks and the shoulder of the fitting; a separable fusible strut between the valve and the resilient. frame; a cover fitting over the frame. the

- valve seat, and. the strut, the open edge of fitting with a valve seat and. an outwardly projecting annular shoulder; a disk with a peripheral flange restin upon the said shoulder; a second disk with a peripheral flange resting upon the first nae-med disk, the outer disk being of greater diameter than the inner disk so that an annular space or groove is constituted between the two flan es' a valve on the valve of the lita s r n ting; a frame rastened to the ntting and seating againstthe inner disk, thereby making an air tight joint between the disks and the shoulder of the fitting; a separable fusible strut between the valve and the frame, a cover fitting over the frame, the valve seat, andthe strut, the open edge of said cover fitting into the groove between the flanges of the two disks; and a fusible cement said groove forming an. air tight ioint between the glass cover and the 5. 'A sprinkler ior automatic lire guishing systems having, in combination, a fitting with an outwardly projecting shoulder and a valve seat; a disk with a per'iph eral flange resting upon the said shoulder; a second disk with a peripheral resting upon the first named disk, the outer disk being of greater diameter than the inner disk so that an annular space or groove is constituted between the two flanges; a valve on the valve seat of the fitting; a frame connected with the fitting; a separable fusible strut between the valve and the frame; a cover fitting over the frame, the valve seat, and the strut, the open edge of said cover fitting into the groove between the flanges of the two disks; and a fusible cement in said groove forming an air tight joint between the glass cover and the disks.

In witness whereof, l have hereunto si 1 ed my name in the presence of two seibscribing witnesses.

ll llJLlAl l Witnesses:

nicer Esrr, llnnrnn -l. Game.

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