US1479788A - Fire extinguisher - Google Patents

Description

Jan. 8 1924 G. W. COLLIN FIRE EXTINGUSHER Filed Maoh 1o 1922 INVENToR. Gea/:ge W fallan Y kwam/m ATTORNEYS.

Patented Jan. 8, 1924.

. UNITED s'rA'rEs PATENT OFFICE.

GEORGE W. COLLIN, OF BRIDGEPORT, CONNECTICUT.

' FIRE EXTINGUISHER.

Application tiled Iarch 10, 1922. Serial No. 542,560.

improvements in automatic lire extin uishers-adapted to be applied to the interior of a room.

The invention is adapted to be used in connection with a water supply forming part of which is commonly called a sprinkler system, or may be used in connection with a supply of chemicals, provided in individual contamers, or in a larger receptacle having pipe connections with several of my automatically operated outlet valves.v

The purpose of the invention is to provide a simple and inexpensive form of thermostatically operated valve mechanism which is adapted to be attached in any convenient place and operated by extreme heat as generated from a fire to which the device is exposed.

I have further especially yadapted my improved fire extinguisherfforattachment to the side walls or ceilings of rooms so that the water or chemicals'when automatically discharged, will be sprayed out in all direc- 'tions upon the fire which is probably burning below, and the heat from which had previously ali'ected the thermostatic valve in a way to automatically operate the same. The extinguisher is further provided with an adjustable means so that the water or chemical may be discharged at any desired temperature as .is obviously required in a device of this sort. v

With these and other objects in view the invention resides and consists in the con- "struction and novel combination and arrangement of parts hereinafter more fully described, illustrated in the accompanying drawings, and pointed out in the claims hereto ap ended, it .being understood that various c anges in the form, proportion,

size and minor details of construction within' the scope of the claims may be resorted to without departure from the spirit or sacri- Aficing any of the advantages. of the invention.

4tion of the body and is Y 15 whereby the fluid Similar characters of referencedenote like or corresponding parts throughout the several figures of the accompanying drawings forming a part of' this specification, and upon which,

Fig. 1 shows a side elevation of my im proved automatic lire extinguisher, the same connected by a broken pipe, with a container for fire extinguisher chemical; and

Fig. 2 shows a front sectional elevation of the automatic thermostatic valve device shown in Fig. 1.

Referring in detail tothe characters of reference marked upon the drawings, 5 represents a valve body which may be formed integral with a base 6 and wall plate 7 adapted to be attached to either side wall vided with a central chamber 9, the upper end portion of which is closed by means of a detachable plug 10y having a central hole 11 therethrough, with which the supply pipe 12 is connected. This pipe may be connected with a chemical tank 13, so that the device can be used for dispensing lire extinguishing chemical, or may be connected with aA waterl supply, not shown, so the extinguisher may be used for releasing water instead of chemical. The chamber 9 of the body portion is provided with an annular valve seat 14 surrounding the top edge-portion of the port 15 to accommodate the valve 16 and its stem 17. The stem further extends down lfrom the central hole 18 of the lower end porp rovided upon its outer end portion with adi' 19 and 20.

A series of radially disposed ports 21 extendout in various directions from the portI assing down therethrough will be distrlbuted through said series of ports in relatively fine sprays to equally distribute the extinguishing fluid within the desired radius within the room.

A U-shaped thermo-plate 22 of im roved design is employed lfor operating the efore v or ceiling of a room in any suitable manner, for instance by screws 8. This body is proustable stop nuts mentioned valve and stem and as will be v 7, by means of screws 25 passing throu h- Slots of the bracket and engaging the said so y i 'the rising temperature and expansion of the Wall plate in a way to rmly hold the bracket in its adjusted position. The treeil operating end portion of 'the thermo-loop is preferably .slotted as at 26 to accommodate the end portion of the Valve stem which extends therethrough.v The stop nuts 19 and 2O located upon this valve stem are ar-v ranged in spaced apart relation, topermit of a limited free andv unoperative movement of the said tree end of the thermoloop Without raising the valve and whereby the thermo-loop is permitted 'to expand a reasonable amount, due to natural conditions, without' affecting the valve, but Whereby further and excessive expansion necessarily due to a-ire, would causeit to engage the top stop 19 to lift the valve in a way to release the liquid therein and discharge it throughthe several radial ports.

rlthe normal adjustment of the bracket andv its thermo-plate with referenceto the stops on the lower end of valve stem are such as to cause the free end portion of the thermoplate to engage the lower stop nut 20 as indicated in the drawings so as to naturally hold the valve down upon its seat, which to-` gether with the pressure of the fluid against the top side of the valve would be sucient to hold it tightly closed.

From the foregoing it will be seen that with thermo U-plate, the tree end of 'the same comes into contact with the nut 19 in away to` raise the valve against the initial presvsurewhich holds it down, and as the temperature further rises the thermo (Ul-plate expands further and a spring action thereof develops, whichl when overcome by the increased pressure of the U-plate, causes the valve to quickly break from its seat, where-V upon all resistance is lost and thespring action of the said thermo U-plate leaves the valve, full open.

My automatic thermo-operated A re enxtinguishing valve is very simple in construction and is thus an attractive manufacturing proposltion since 1t 'comprises a relatively tew number-of parts which may be adjusted.

easily formed, readily assembled, and installedDv let port Ihaving a valve seat, a

maratea Having thus described my invention, what ll claimv and desire to secure by Letters lPatentis- Y 1. lin a lire extinguisher, the combination with a base plate and chambered body portion having inlet and outlet ports, said out'- valve normally engaging said seat and covering the outlet 4and provided with an external stem portion carrying longitudinally spaced apart stops, cured at one end to the base plate and having its free end positioned intermediate said stops, being normally spaced from the innermost stop and engaging the outermost stop under pressure to yieldingly maintain the valve on its seat, and adapted to engage the innermost stop to raise the stem and its valve upon a predetermined expansion of said thermo-plate.

2. lin a tire extinguisher, the combination of a base plate, a valve body mounted theremally engaging said seat and covering the outlet and having a stem portion which projects through said valve body, a resilient thermo-plate secured to said base plate at one end and connected at its other end to said Stem, whereby'it normally maintains said valve upon its seat under pressure and is adapted upon expansion to raise the stein and valve.

3. The invention as in claim 1, further characterized by said thermo-plate being adjustably mounted on said base plate to vary the pressure of the thermo-plate upon said valve in the closed position thereof. Signed at Bridgeport, in thecounty of Fairfield and State of Connecticut, this 9th day ot March, A. D. .1922. v

. GEORGE W. COLLIN.

Witnesses:

C. M. NEWMAN, MILLIAN M. Annina.

guide passage beneath the a resilient U-shaped thermo-plate se-

Images