US1996633A - Fire extinguishing apparatus - Google Patents

Description

A ril 2,1935Q TYDEN I 1,996,633

FIRE EXTINGUI SH-ING APPARATUS OriginalFiled June 30, 1930 2 Shets-Sheet l ZmZZ 7? em.

April 2, 1935. E. TYDE'N 1,996,633

FIRE EXTINGUISHING APPARATUS Original Filed June 30, 1930 2 Sheets-Sheet 2 watts 1,996,633 FIRE. EXTINGIJISHInQ ABrAnAfEUs.

Em l ydi a. H st ng M c Original application June 3.0; 1930, Serial. No. 7 464,940; Divided and; this, applicaticn. July. 28, .3; Ser al N 25 Claims. (CL. 137-161) This application is a division of my co-pending application Serial No. 4643940, filed June 30, 1930, Patent No. 1,947,890, issued February 20,

The purpose of this invention is to provide in a fire extinguishing sprinkler system the means 0t venting the air pressure by which the main valve which controls access of water to the system is held seated, independently of the opening of the discharge heads, so that the pipe system shall. be.

occupied with Water approximately to. the discharge heads when the latter are opened by heat due to fire in the apartment; and so, thatinstead oi the discharge from the heads immediately following their opening being a blast of air fanning the fire, the: discharge. of the water, and thiswithout. the delay which occurs when the opening ofthe sprinkler heads by heat is relied upon for fans ning. the pressure and causing the water control-- ling valve to open.

This divisional application is directed to specific construction of the, valve device which controls the release or venting of the air pressure for adap i i to b op rat f r su l se by a temperature-responsive device, and to certain pe ific construction of ai temre at r es qi sive device h inv tion con i s n th e i an t atures of construction shown and described as in: dicated in the claims.

In the drawings: Figure 1 is a diagrammatic view showing a part of a fire extinguishing installation in con-. nection with which valve devices embodying the invention of this divisional application are em:-

ployed.

Figure 2 is a sectional side elevation Of a portion of the installation containing the features constituting the present invention,

section bein made in a vertical plane axial with respect to. the temperature-responsive device, and as to the valve device at thev Figure 3.

Figure 3 is a cated by the line ure 2.

plane indicated by the line 2 -2 on detail elevation at the plane indi- 3r-3 on Figure 2 loolgingv in the Figure 5 is a section at the line 5+5 on Figure 3.

Figure 6 is tion at the line s a ion.

Referring to n represents a ma the drawings in detail:

n valve of a dry p1 a view of the character'of asco- 'G.-.6 on Figure 2 show n modie n y tem main. air pressure. pipeline being connected tor. 5;

air pressure. byan air pressure line, I-.5., leading from a. source of compressed. air indicated by the. tank, Erepresents a vent pipeleading ofEi-rom the main air pressure and discharge pipe, C, preferably as v seenin Figure 1, in the. protected 10.. apartment proximately antecedentto; the branch 7 ing from said main discharge; pipe. or the pipes, D;, constituting the sprinkler'head system.

.T epip Eyleads to: a fi in atwhich. it is. connected at the inlet port, 2%: (see Figure. 5) 0fa assagazi, which passa e turns for dischar at a next 2-2,. a. hamber formed-by h od-J 4.. preferably, as. indi at d, made, itran pare t. ma: terial, as. la s, to. a ialitatein pection ith ut. disassembly 0. opening w h w uld-ven the. ai pressure. T p rt, 32.15; cont o ed by a alve 25. held s a ed a inst the. p ssu e by a disp aceabl strut .15:, p ie bly fran ble as here nai erm re.pa t cu ar cl s riteslhe b t. t m i -tha h mbe rh isenc o e by h 1199a 24, has a plurality of outlet ports, 2i, distrihpted ound h 11 210 three i e h E il s. see in F e 2; sa d es ad n o a scha geo t. .9 t th r is ema at a P n 3a. whi h may ad s a y cenvesi st 29ml? or eliv ry O 30 e r h h will be disa ee thr u h sa d. r pe wh n the al firh e a i r refu ed s a the v s a ris pene o v ing h air pressure of the system. V

1'2 o en g; 9? he Y a e i 9. 9 q by s me rm 9 iesiee aw s e de i e which sh l Qr rat t en a e we ve w e t re is reta at wai s 111 a a tm rtd-. a resulti eni r an r h al e b i e as s ut by th trata Wi l e 4.0 PQPS Q by h i Pre su Wll e Sir-Iii i brok n an ar r ak n t e r w a math. e ie t ts we a or s ilaan ib at a th e i' sr r dd a tQust pin, 31, mounted in a slightly flexible d p m. 32 wh h d s a let rt r nii 's he r ad 2 id hr st n i Plim afi a? an against h strut a 1 the m dd cyi i of the length of the latter, and being" arranged or ro n n firms h owl i rs i e 5.0 e en o nt re y a w i ht it, fii d' i a lever, .6. h ch s mo nted and atr e f't t m n r ing n h we ht n errd ie r with the pin.

The t mnerature resnqesiv than caresses 5.

and the rod, J, being relatively slender. Both rods are made fast at one end in the head plates, h of the housing, which has mounted in it at the other end a bracket member, K, formed with a web, 7c, which constitutes the head plate of the housing at that end. The bracket, K, may constitute the support for the fitting, F, and may be, as shown, integral with the latter; and it is extended for aflording pivotal support, as seen at 37, for the weighted lever, '36, which extends upwardly from said pivot with the weight, 35,

overhanging from the pivot. V

Said weighted lever is held normally at that position against gravity by a latch member, 40, pivoted atone end to the web, It, of the bracket, K, which engages a catch, 42, carried by the lever, 30, all as seen in Figure 2.

The further detail construction of the temperature-responsive device and its connections for latching and releasing the weight maybe understood from the drawings without further description. I

It may be understood that the means of releasing the vent valve consisting in employing a frangible strut and breaking it to effect the release of the valve is not essential to the present invention, though for certain reasons a frangible strut may be preferred.

In Figure 6 there is illustrated a modification of the structure shown in. Figures2, 4 and 5, in which there is employed a construction consisting of a toggle comprising two link elements, IOI and I02, pivotally stepped at their proximate ends, the link, IOI, being stepped at its opposite end on the valve, I00, and the link, I02, at its opposite end being stepped against the stop screw, I04, set through the end of a yoke member, I03, which is formed integrally with the valve seat spanning and overhanging-the same.

The toggle strut, I M, has a short lever arm, I05, projecting from one side, and the toggle strut member, I02, has a similar lever arm, I06, projecting at the same side, and the two lever arms, I05 and I06 are connected by a two-part link whose two parts, I01 and I 08 are soldered together, and adapted to become separated by the fusing of the solder.

The link member, I 01, is connected to the lever arm, I06, of the upper toggle strut member by the engagement of an aperture, I09, of the link with the reduced terminal of the lever arm, I06. The link member, I 08, is engaged at its lower end with a lever arm, I05, of the toggle link, IOI, by an aperture in the lower end of said link member engaging a frangible pin, H0, which is held in a socket formed in the end of the lever arm, I05, said frangible pin projecting a substantial distance outwardly from the link in position to receive the thrust of the thrust pin, 3|, when the latter is encountered by the weight, 35, upon the operation of the thermostat device, as above described.

Upon considering this construction it may be understood that the vent valve will be opened for venting the air pressure region of the system by the breaking of the frangible pin, H0, which will release the fusible link without fusion of the latter, and thereby release the toggle strut members which Will fall out and release the vent' valve. But if for any reason the temperature-responsive structure mounted as described in the upper part of the apartment fails to operate for releasing the weight, 35, promptly upon the occurrence of the temperature conditions which should cause it to thus operate, as for example, if the rise of temperature, though due to fire is very slow, although it eventually reaches the danger point, nevertheless when the temperature in the vicinity of the V vent valve is suificient to fuse the fusible link, the

vent valve will be opened as promply as the closed sprinkler heads in the apartment will be opened by the same cause and in the same manner, namely, by the fusing of the links by which they are held closed; and the advantage of venting the air pressure by way of the vent valve and its discharge connection leading to the exterior or to an open sprinkler head, and avoiding to a large extent the discharge of the air through the sprinkler heads in the apartment, objectionably venting the fire when the sprinkler heads are opened by the fusion of their links.

I claim:

1. In a construction for the purpose indicated, in combination, a valve chamber having an in.- let port and an outlet port and fixed stop means opposite the inlet port; a valve within the chamber seating at the inlet port; a toggle strut wholly within the chamber having one toggle member stepped on the valve and the other toggle member stopped on said stop means, said toggle members having each a lever arm, said arms both projecting transversely of the toggle members respectively at the same side of the toggle, one of said arms having a terminal hook and the other arm having a frangible terminal pin; a link connecting the two lever arms by engaging at one end the hook and at the other end the frangible pin; and a thrust rod mounted in the chamber Wall protruding inwardly from its mounting into contact with said frangible pin laterally of the latter and protruding outside the chamber for exposure to means for thrusting it inwardly for breaking the frangible terminal. 2. In a construction for the purpose indicated, in combination, a valve chamber having an inlet port and an outlet port and fixed stop means opposite the inlet port; a valve within the chamber seating at the inlet port; a toggle strut wholly within the chamber having one toggle member stepped on the'valve and the other toggle member stopped on said stop means, said toggle members having each a lever arm, said arms both projecting transversely of the toggle members respectively at the same sideof the toggle, one of said arms having a terminal hook and the other arm having a frangible terminal pinya fusible link connecting the two lever arms by engaging at one end the hook and at the other end the frangible pin; and a thrust rod mounted in the chamber wall protruding inwardly from its mounting into contact with said frangible pin laterally of the latter and protruding outside the chamber for exposure to means for thrusting it inwardly for breaking the frangible terminal.

3. A device for protection against fire consisting of a fitting adapted to be interposed in a fluid flow pipe line for controlling fluid pressure flow therethrough, said fitting comprising two members detachably mounted one upon the other, the first member having an inflow and an outflow passage arranged for connection respectively with the pressure flow source and destination, said passages being partitioned from each other in said first member and having each an outlead from said member at one side thereof, the second member having a single unpartitioned cavity open at one end, said second member being mounted with sealed junction on the first member with the open end of said second member embracing both said outleads of the first member flow passages; a valve mounted in the second member seating at the outlead from the source-connected passage; a strut in the second member for holding said valve seated; means mounted in the second member movable in relation to the operative position or" the strut for causing displacement of the latter to release the valve, said means having exteriorly exposed connection for deriving said strut-displacing movement. V

4. A device for protection against fire consisting of a fitting adapted to be interposed in a fluid flow pipe line for controlling fluid pressure flow therethrough, said fitting comprising two members detachably mounted one upon the other, the first member having an inflow and an outflow passage arranged for connection respectively with the pressure flow source and destination, said passages being partitioned from each other in said first member and having each an outlead from said member at one side thereof, the second member having a single unpartitioned cavity open at one end, said second member being mounted with sealed junction on the first member with the open end of said second member embracing both said outleads of the first member flow passages; a valve mounted in the second member seating at the outlead from the source-connected passage; a strut in the second member for holding said valve seated comprising a fusible part wholly within the chamber by whose fusion the strut is dismembered and releases the valve, and means mounted in the second member movable in relation to the operative position of the strut for causing displacement of the latter to release the valve, said means having exteriorly exposed connection for deriving said strut-displacing movement.

5. A device for protection against fire consisting of a fitting adapted to be interposed in a fluid flow pipe line leading from a selected location in the protected apartment, for controlling fluid pressure flow therethrough, said fitting comprising a valve chamber and a valve seated therein, a strut device controlling said valve holding it normally seated against the fluid flow, said strut device having parts displaceable for releasing the valve and arranged to yield to flow pressure tending to open the valve for said displacing movement, the strut device including fusible means arranged to hold the displaceable strut parts in undisplaced relation to the valve and to release said displaceable parts for releasing the valve upon fusion of said fusible elements, said strut parts including said fusible element being completely enclosed in the valve chamber, said chamber comprising two separable members by whose separation access is afforded to the valve chamber and the strut parts therein.

EMIL TYDEN.

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