US1956310A

US1956310A - Apparatus for the extinguishment of fire

Info

Publication number: US1956310A
Application number: US350470A
Authority: US
Inventors: Fisher L Boyd
Original assignee: National Foam System Inc
Current assignee: National Foam System Inc
Priority date: 1929-03-28
Filing date: 1929-03-28
Publication date: 1934-04-24
Anticipated expiration: 1951-04-24

Description

`April 24, 1934. F. l.. BOYD APPARATUS FOR THE EXTINGUISHMENT OF FIRE 3 Sheets-Sheet l Filed March 28, 1929 NVE/vra@ F75/zer .oya/

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April 24, 1934. F L BOYD 1,956,310

APPARATUS FOR THE EXTINGUISHMENT OF FIRE Filed March 28, 1929 5 Sheets-Sheet 2 April 24, 1934. F, BOYD 1,956,310

APPARATUS FOR THE EXTINGUISHMENT OF FIRE y Filed March 28, 1929 5 Sheets-Sheet 3 Patented Apr. 24, 1934 APPARATUS Fon THE EXTINGUISHMEN'T i oF FIRE Fisher L. Boyd, Haverford, Pa., assigpr to National Foam System, Inc., Philadelphia,'la., a

corporation of Delaware 'Application-Maren 2s, 1929, serial No. 350,450 1 claim. (c1, 15e-15) My invention relates to meansfor .extinguishing nre, and it has particular relation to apparatus foam.

Such an apparatus, for example, is shown in my co-pending application for'Letters Patent of the United States Serial No. 199,277, led June 16, 1927. In that apparatus, different substances are introduced into separate flowing streams of water wherein they are dissolved. Upon the uniting of said streams, chemical reaction between the substances in solution takes place to produce a nre-extinguishing foam. Such u nion'of the streams and the resultant chemical reaction should take place at a point in proximity to the place of application of the foam. The substances employed may and actually do consist of aluminum sulphate and bicarbonate of soda, together with a suitable stabilizing agent.'

One object of my invention vis to provide, inv

apparatus of this kind, a storage chamber having a dry foam-producing substance, in combination with means whereby said storage chamber may be easily and quickly moved from a distant position to one which is in' discharging relation to the hoppers of the foam-producing apparatus. Such arrangement does away with the necessity for manually pouring the chemicals into the said `hoppers and it also makes possible the operation of the equipment by one man.

With these and other objects and applications in mind, my invention further consists in the de- .tails of construction and operation and arrangement, hereinafter described and claimedand illustrated in the accompanying drawings, wherein,-

Flgs. 1 and 2 are side and end elevational views, respectively, of fire-extinguishing apparatus embodying my invention, one of the movable storage chambers being shown directly over the hoppers of the foam-producing apparatus, with the valves thereof in the open position;

Figs. 3 and i are enlarged, detail, side and end elevational views, respectively, of the storage chamber with its associated valve mechanism;

Fig. 5 is an enlarged horizontal sectional view of the valve mechanism, showing the valve in its open position, permitting the passage of material from the storage chamber into one of the hoppers;

Fig. 6 is a view similar to Fig. 5 but showing the valve closed; and

Fig. 7 is an enlarged, detail, vertical sectional view of the valve mechanism, showing the valve closed.

for the production of `lire-extinguishing Referring to Figs. l and 2, a pipe or conduit a is provided for supplying waterfrom a source (not shown) through a Y-connection b to a pair of conduits 1 and 2. The conduits 1 and 2 may be united at a distant point (not shown), which is Ain proximity to the place of application of the fire-extinguishing foam. A valve 3 is provided in the pipe a for controlling the flow of fluid therethrough and through the pipes or conduits 1 and 2. 'Ihe conduits 1 and 2 are connected through valves 4 to a pair of hoppers5 and 6, respec-. tively, which are adapted to receive the foamproducing substances, all as is set forth in my co-pending application aforesaid.

In accordance with my invention, the foamproducing materials for the hoppers 5 and 6 are stored in a large chamber' or casing 7 which is supported by a trolley structure 8 -traveling Aon' I an overhead track 9. The track 9 may extend from a. distant storage point (not shown), and it is so positioned with respect to the hoppers 5 and 6 that the casing 7'may be moved directly over said hoppers so as to be in discharging vrelation with respect thereto. Fig. 1 shows one storage chamber 7 in the act of discharging its contents into the hoppers 5 and 6, with a second storage chamber close by ready to be :moved into the position of the rst storage chamber 7. Such arrangement eliminates the necessity for the manual pouring of the chemicals, as has heretofore been the practice, and it further simplies the control of the equipment as af whole, since only one man is necessary for the successful operation thereof. y

Referring further tothe storage chamber 7 it is divided by a central partition 11 into

separate sections

12 and 13 in which the different foam-producingsubstances may be stored. 'Ihe lower ends of these chambers terminate in

funnel sections

14 and 15 having outlet openings 16 which are respectively controlled by

slide valves

17 and 18. The

valves

17 and 18 are respectively connected by links 19 to arms 21 rigidly mounted on shafts 22 journaled in bearings 23. Each of the bearings 23 is formedby bending an intermediate portion of a strap member around the shafts 22. The

end portions

24 and 25 of each of the strap members are welded or otherwise secured to the casings. The shafts 22 may be operated by a common hand lever 26 comprising a pair of

straps

27 and 28, the upper ends of which are bolted together to form the handle.r The lower ends of the

straps

27 and 28 are respectively provided with hub portions 29 and 3L which are rigidly secured to the shafts 22, so that when the hand lever 26 is moved from the position shown in Fig. 3V to the position shown Ain Fig. l, the

valves

17 and 18 are actuated fromtheir closed position to their open position, as'

will appear hereinafter in greater detail.

Inasmuch as the structure of the valves 17.

lopening 16 of the casing section 14. The ring 34 is provided witha beveled lower side 38, as

-shown in Fig. 6,v forming an inclined seat for a correspondingly beveled upper" side 39 oa plate 41 forming the valve 1,7. The upper side 39 may be provided with a circularrecess V42- which is adapted to receive a sealing ring 43 of lead or similar material positioned in sliding engagement with the seat 38.

The valve plate 4l may be supported on a base plate 44, an upper side 45 of which constitutes a lower seat for said valve plate 41. The base plate 44 is also provided with an aperture 46 which registers with the openingv 37.in the upper ring member 34. The valve 41 may be guided during 'the movement caused by the swinging of the hand lever 26-in4 the manner shown in Figs. 5 and 6, vwherein it is noted that

longitudinal side edges

47 and 48 of the valve plate 41 are interlccked with' grooves 49 and 51, respectively, formed in the base plate 44, so as to prevent a relative vertical movement between the valve plate 41 and the base plate 44 while permitting a relativelongltudinal sliding movement,

such as occurs when the valve plate 41 is moved from the position shown in Fig. 5 to that shown in Fig. 6, A V

The bottom plate 44 maybe resiliently supported by means of a plurality of devices 52, each of which comprises a bolt 53'which extends up-y wardly through the plate 44 and a-horizontal projection 54 on the upper ring member 34. The

' bolt 53 terminates in a threaded portion 55 having a nut 56 mounted thereon, which is positioned in spaced relation to the projection 54 so as to A washer 58V may be positioned between the upper end of the receive therebetween aspring 57.

spring 57 and the adjustable nut 56. The combined force of the several springs is such as to hold the valve plate 4l tightly in engagement with the upper and

lower valve seats

39 and 45 when the valve plate 41 isin the closed position shown in Fig. 6. When the valve plate 41 is- 'moved from its closed position between the

valve seats

39 and 45, theV lower plate 44 moves upwardly under the force of the springs 5 7 a slight amount, which is determined by the thickness cf one or more washers 59 positioned between the extensions 54 of the upper ring 34 and the upper side of the base plate 44.

Y In operation, when it is desired to nil the hoppers 5 and 6, one of the storage chambers 7 is moved on the overhead track 9 until the discharge outlets 16 thereof are directly over the hoppers 5 and 6. The valve-operating member 26 is then moved from its upper position shown in FE. 3 to the lower position shown in Fig. 1. Such movement actuates each ofthe

valves

17, 18 from the position shown in Fig. 6 to that shown in Fig. 5. When it is desired to remove an empty storage chamber 7-so as to make room for a new one, the hand lever 26 is raised -into a vertical position, so as to close the valves 17 `and 18. The introduction of the chemicals fromV the hoppers 5 and 6 into the conduits 1 andl 2 may be controlled by the valves 4, as set forth' in my aforesaid application.

While I have shown only one form of embodiment of my invention, for the purpose of de-v scribing the same and illustrating its principles of construction and of operation, it is apparent;A that various changes and modifications may be made therein without departing from the spirit of my'invention. I desire, therefore, that only such limitations shall be imposed thereon as are indicated in the appended claim or as are dev manded by the prior art. Having 'thus described my invention, what I claim and desire to secure by Letters Patentfis:

YIn a system for extinguishing lires, in combif nation, a dual container for receiving in separated relation dry foam-forming ingredients capable upon reacting with each other in the pre'sence of a solvent to produce foam; a foam producingand ejecting apparatus lincluding a dual hopper for separately receiving and introducing said ingredients vinto a flowing stream of wa` 120A ter; a continuous elevated track extending from a point above saidapparatus to a point removed therefrom, means for suspending said dual container from saidtrack for movement there-.-

along, said dual container being provided with separate discharge openings through" which said vingredients are 'separately discharged; and means for simultaneously eiecting the separatedischarge ofsaid ingredients from said container into said hopper when the former is :moved into discharging relation with'respect to the latter.

Piensan BOYD. f