US615262A - dinsmore - Google Patents

Description

No. 65,262. Patented Dec. 6, I898. J. H. R. DINSMDRE.

FIRE EXTINGUISHING SPRINKLER.

(Application filed Nov. 18, 1897.) (No Model.) l 2 Sheets-Shoot l.

W/ TNESSES No. 6l5,262. Patented Dec. 6, I898.

J. H. R. DINSMURE. FIRE EXTINGUISHING SPRINKLER.

(Application filed Nov. 13, 1897.\ (No Model.)

2 Sheets-Sheet 2.

k I a UNITED: STATES PATENT OFFICE.

JOHN H. R. DINSMORE, OF LIVERPOOL, ENGLAND, ASSIGNOR T WILLIAM HENRY DAVIES, OFMANCHESTER, AND JOHN EDWARD LEES, OF ROM-I- LEY, ENGLAND.

FIRE-EXTIINGUISHING, SPRINKLER.

SPECIFICATION forming part of Letters Patent No. 615,262, dated December 6, 1898- Application filed November 13, 1897. Serial No. 658,416. No model.)

To all whom it may concern: from the Valve-body I) and which are formed Be it known that I, JOHN H. R. DINSMORE, thereon, and on the lower end of which is engineer, a subject of the Queen of Great Britformed a ring e, the inside of which is threadain and Ireland, residing at Liverpool, Enged and screws over the threaded neck d 5 land, have invented certain new and useful formed on the caseroof 61. Through this Improvements in Fire-Extinguishing Sprinneck (1 the valve-stem 0 passes and is guided klers, of which the following isaspecification. by it. The lower diaphragm of the device a The class of fire-extinguishing apparatus to is supported from the case (1 by an open ringwhich this invention relates isthat of the auframe g, the central part g of which is bored, 10 tomatic-sprinkler type which is fixed at dif and through the hole a pine on the lower ferent points at or near the ceiling or roof of diaphragm passes and is secured by a nut a a room or building and is adapted to be autowhich holds the diaphragm device down on niatically set in action and discharge water the frame 9. The frame g is held in position into such room or space when the temperain a suitable seat in the case at by the spring- 15 ture of the room at the part where it. or they wire h, which fits in an annular groove in the is or are disposed reaches a certain point case, as shown, under the frame, such ring and the particular kind of this class of autobeing split at h and sprung into position. matic extinguishing apparatus to which this Between the diaphragm device a and the invention has special reference is that havroof d a pad or wad 11, of felt or other suit- 20 ing an expansible and contractile diaphragable bad conductor of heat, is provided. This matic chamber and in which the vaporization has the effect of preventing the device a beand expansion of a volatile fluid when the ing cooled too much and too rapidly by the heat around such device reaches a given point cooling of the roof (1, due to the falling of causes the device to extend and open a valve water upon it when the apparatus is in action. 2 5 and water to be supplied and distributed. On the upper side of the device a there is a Drawings accompanying this specification strengthening-disk lo, which distributes pres- 7 5 illustrate the improved automatic fire-extinsure and prevents undue strain coming upon guishing apparatus. parts of the device a.

In the drawings, Figure 1 is a sectional ele- Within the device a there is a porous or ab- 3o vation in the normal position of rest. Fig. 2 sorbent sheet of material Z and a plate 171., on

is a view showing the underside of the d'ewhich this material rests, and this porous ma- 8o vice or apparatus. Fig. 3 is a sectional eleterial is charged with asmall quantity of volavation showing the apparatus in its open and tile liquid of any known suitable kind which active position, and Fig. at is a plan. will evaporate at the temperature desired 3 5 Referring to the drawings, ais a corrugated say from 95 to 120 Fahrenheit.

diaphragmatic disk device consisting of up- The valve-stem 0 screws over a threaded per and lower corrugated disks. stud a on the upper diaphragm of the device I) is a valve-casing, and c a valve in it, the a, as shown, and has upon it between the devalve being rigidly connected with and opervice and the valve 0 a spraying or'distributo ated by the device a through the valve-stem 0. ing device a, by which water is broken up and b is the neck of the valve-case, by which sprayed and distributed up and all around the apparatus is fastened to the pressure waas required, and this device at has an annuter-service pipe. lar portion 42 on its under side which fits d is a case around the outside of the device over the guide-neck d and prevents water 45 a, by which such device is supported and to getting down between the valve stem c and which it is attached, and this case is carried the guide onto the device below and cooling it.

up over the upper side, forming a roof at d The valve 0 in the case shown has a face to the device and inclosing it above. of vulcanized fiber, leather, or the like bear- 6 are arms by which the case at is carried ing upon an internal valve-seat, and the opening 0 of the valve is between the stem 0 and the seat.

The use and operation of the apparatus are as follows: The apparatus is placed in buildings, rooms, or spaces-say, in the usual or commonly-adopted positions-and when quiescent the parts will take the position shown namely, the diaphragmatic device a will be collapsed and the valve 0 upon its seat, with the pressure of water keeping it close down on its seat and tight. Then when a fire takes place the heat resulting from it reaches the open under side of the device a and acts upon the volatile hydrocarbon liquid held in the alosorbent material Z therein, andit becomes vaporized at the temperature desired. The effect of this is that pressure is created in the device a, and it becomes distended in the manner shown in Fig. 3, and the valve 0 is thereby raised from its seat and opened, whereupon the water under pressure rushes downward and striking the sprayer n is distributed by it and sprayed about in all directions. Some of this water in falling downward falls upon the roof d, but it is prevented from acting upon the device athat is to say, while the temperature of this roof can be cooled by the Water falling upon it the temperatu re of the device a is not affected by it, as the non-conductor materiali prevents this, and thus the temperature of the device and its contents is unaffected by the water, and so the device a will be kept distended and the valve will be kept open in spite of the falling water, and then when the fire is extinguished the valve will remain open by this means several minutes-say from three minutes upward-and to get this afterfiow and distribution of water in a self-stopping sprinkler it is found necessary to protect the expanding and contracting device from cooling effect from above in the manner described.

\Vhen the fire is extinguished, the vapor of the volatile spirit in a condenses and is absorbed by the pad 11, which is held in the tray m, and the diaphragms of the device collapse, and thereby bring down the valve 0 again onto its seat, and so stops or cuts off the flow of water.

What is claimed in respect of the hereindescribed invention is- 1. In an automatic self-stopping fire-extinguishing apparatus, a diaphragmatic device and covering-case, a valve-spindle passing up through a neck on said case, a water distributing or spreading disk device 12, on which the water strikes, and a part at below on n, which prevents waterfrom passing down onto the diaphragm device.

2. In combination with the covering-case d d having the downwardly-extending flange, the ring-frame g fitting in the lower part of said cover-case, the separable diaphragm having its lower part resting on the ring-frame g, the upper supporting-frame, the valve therein and the stern extending from the diaphragm to the valve with means for holding the ring-frame in place.

3. In combination with covering-case (Z d having the depending flange, the two-part diaphragm, the valve connected therewith, the ring-frame at the lower end of the covering-case having a boss receiving the stem of the lower part of the diaphragm and the spring-ring for supporting the ring-frame in place, substantially as described.

In testimony whereof I have hereunto set my hand in presence of two subscribing wit- \Vitnesses:

ERNEST R. RoYs'roN, JOHN H. WALKER.

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