US2366692A - Fire extinguishing device - Google Patents

Description

Jan. 9, 1945. 2,366,692

H.E.BRANDT FIRE EXTINGUISHING DEVICE I Filed Feb. 5, 1942 s Sheefis-Shegt 1 Figfl 2 Inven'tcr-i m w! B 625% 55 HENRY .BRANDT n- 1945- i H. E. BRANDT 2,366,692

FIRE EXTINGUISHING DEVICE Filed Feb. 5, 1942 5 Sheets-Sheet 2 Figfq. Fmgflo.

Inven'toE'. HENRY E. BRAND Jan.9, 1945. H E, B ANDT 2,366,692

FIRE EXTINGUISHING DEVICE Filed Feb. 5, 1942 5 Sheets-Sheet 3 Figfi z InverL-bor- .VHENRY BRAN 7? fitter-neg.

Patented Jan. 9, 1945.

I N D STATES- PATENT OFFICE 1 RE vxfllvoms ll e fl wv HenryErBrandt, St. Paul, Minn.

Application February .5

, 2 rial N 9 0 12 Claims}: 01. use-+33) This invention relates to .a fire extinguishing device and particularly to such a device constructed and arranged to be very quickly available for extinguishing va fire, particularly such a fire as. one

started by incendiary bombs.

Whenfires are started; in bombing raids by the usetof incendiary bombs it isvery essential that these fires be handledwith great rapidity. The t incendiary bombs, usually contain magnesium,

which burns with a veryuhot flame. L'Iheouicker the. extinguishing operations can be performed,

.theless chance .there is of the fire spreading to very. damaging -.prOD0rtions. A fire comprising burning magnesium must :behandled with 1 a spray wa er t a l a fi e p ay, t pr p' r v control it. i If a fine spray of water is. played on the. burn ng ma nesium it ,will burnout without doinga great dealof damage. It is-very objectionable to direct la full streamof water upon the magnesium. i

It isanobject of this invention to provide a fire extinguishing device comprising a container mediately begin the extinguishing operation.

,It is a further object of the invention ;to proide a fire extinguishing device comprising a container adapted normally to hold a supply of water, apump disposed within and heldwithin said container arranged for instant operation, said pump having a delivery hose o f rather great length, the same heingarranged to bedisposed within-the container with the pumpso that it can ,be very quickly removed. and placedin operative position. i a n .It is also .anpbject of the invention to provide .a fire extinguishing device comprising a con-.

stainer adapted normally tohold a supply of wareceptacleto be used in a separate vvater supply.

Other objects of the invention are .to provide ,a double. acting pump of a structure particularly adapted .to be carried withinthe container. and

:simple and eflicient meansrfor holding the pump l in the container andsothat it can beinstantly releasedand removedtherefrom together with a discharge nozzle. for said pump arranged to discharge either a; spray -.of water or a full stream .of water.

These and o ,des'cription madein connection with the accom- ,panying drawingslin which like reference charor receptacle vvhichlwill normally bewfilled with i water. A pump, is disposed within thezcontainer ready for operation. and it will ,only be .necessary.

.25. .to carry the container toithefire and. then im- Fig.1 fsacentral device:

acter's. refer ,tosirnilar parts throughoult the several views and in which Fig. 2 is a central vertical section through the pump cylindenshown on an enlarged scale;

Fig. '3 isja perspective view .of the devicein inoperative position; u Fig. lfisahorizontal section takenon. line1 4--4 of Figl as indicated bythe arroivs;

'I Fig. 518a vertical sectionfltaken on line 5950f Fig. 4 as indicated by the arrows;

. rest used;

ter, ,a pump with delivery means disposed in said I container and quickly releasable means @for holding said pump in position. so that said pump can be quickly used to. discharge the water .insaid container while in said container and'can then be instantly removed to be placed in a separate sup- ;ply of water if desired.

It is still another object of the inventiontomrovide a ,fireextinguishing device comprising a receptacle adapted to normally hold ,a supply. of water, a pump secured and disposed withinsaid receptacle, .said pump. carrying ,a foot rest to .be used when said pump is used. outside of said re- .ceptaqlatogetherwith meansl fonguiclrly, releasing sa d inum -e thet i can -1 more; "93 1 9 s i Fig.6 isa vertical section takensubstantially; .online ..6-,6 of Eige asindicated b y'thearrows; l

Fig. '7 is .a centralsectionthrough the discharge endof the delivery hose;

Fig) 8 is a plan viewof the pump supporting memberin thereceptacle; Y s i Fig. 9 is a. front viw of used;

position;

Fig. 10 isa Fig. 11 isa Fig. 12 is a horizontal section takenyon line I 2-12 of Fig. 11 as indicatedby the arrows;

Fig; 13is a view in front elevation of amodified form of nozzle;

attached conduit;

Fig. 15 is a central vertical section; thrc ugh Fig. 14: l

Fig.16is a vertical sectiontalsenjon line alt-l6 .Fig. 17 is a similar Referring to the drawings adevice is wshown fcoznprising a container .orreceptacle 15. While .this might takevarious forms .inthe embodiment of the invention illustratedqit is shownas a cylina dncaltank whicnwill preferablybemade of sheet s her objects jandadvantages of the invention Willbe fully setforth in the following vertical section through the ubstantiall a discharge nozzle viewcf said nozzle in a different view in .rront elevation of a foot n v e em. e l a l s i i take s bs a t l f fon.lineIII-.I.'| of Fig.l5.

terial 20g disposed about said rod Zile.

material such as metal, the same having the cylindrical wall I511, the bottom [52) provided with a recess forming bead I50 at its outer edge within which the lower end of wall l5a is received and secured. Said bottom I52) is shown as having a plurality of annular strengthening ribs l5d formed therein, said bottom being preferably somewhat resilient. The wall l5a has an inturned bead [5e at its upper end and the same is shown as having annular grooves I51 adjacent its top. 'A plurality of foot rests h are secured to the outer side of portion 15a of the container,

the same being illustrated as made from pieces bent substantially at right angles having their vertical portions fitting against the side of the container and secured thereto in any suitable manner as by spot welding. The outwardly projecting portions of members l5h will have their lower surfaces flush with the bottom of bead I50. A flanged cover or lid 16 is provided for the container 15; the same'being shown as having a bail handle lfia secured at its upper side. Container I5 is shown as having small clip substantially U- shaped brackets l1 secured to opposite sides thereof some distance from its upper end and a bail handle l8 formed of a, small rod or wire has itsends secured in brackets l1 and swingable therein, said member I8 having at its center a revoluble grip handle to of general cylindrical form having slightly tapering end portions. A' 1 pump 20 isprovided and constructed and arranged to be received within the container I5. While different types of pumps could be used, in the embodiment of the invention illustrated pump 28 is shown of the double acting type. It comprises a cylinder 20a having an inlet member 28b "secured to its bottom, said inlet member having a downwardly directed cup shaped portion across which extends a screen 290. The sides of said cup shaped portion are provided with a plurality of circumferentially arranged notches 2001. A pump rod 20c is reciprocable within cylinder 21301. and through a packing gland 20] threaded into the top of the cylinder and engaging packing ma- Packing gland 287 is threaded into a top member 20h threaded on the cylinder proper 20a, said member "ZQh haVing a laterally extending discharge portion with a discharge passage 202' extending therethrough. Rod 26c is in the form of a pipe or cylinder and has a piston portion 207 at its lower end which is provided with an annular recess in which some packing material 2970 is disposed adapted to move in close contact with the inner wall of cylinder 26a. Portion 287' has a vertical passage therethrough enlarged at its upper end to form a valve seat 20m on which rests and with which cooperates a ball 2%. A stop member 200 is secured in rod 26?: a short distance above valve 7 seat'zflm. Member 200 is pressed inwardly out of the side of rod 206 and there is thus formed an tending equal distances at either side of rod 20c.

and it will be noted that portion 29s is formed with a chamber communicating with the chamber in rod 206. A discharge hose 2| is secured to the. discharge portion 201 of member 20h of the p p and said hose is of considerable length. Said hose may be secured to said pump in any suitable manner but in the embodiment of the invention illustrated it is shown as secured by a and having another opening 24d adapted to produce a fine spray.

The bottom member I 5b of the container l5 .has secured thereto a supporting member 26.

This member is illustrated as having a flat central portion and said member flares upwardly and outwardly from said central portion, the same having a depending outer rim 260.. Member 26 has a plurality of openings 2% extending through the flaring part thereof. Said member 26 receives and supports the inlet member 2% of pump 20, said inlet member engaging the flaring wall of member 26 so as to be supported some distance above the central bottom portion thereof. A bracket 21 is secured to cylinder 20a of the pump, the same being formed by a pair of bands or strips secured together at their ends by screws 28. Bracket 27 extends to one side of cylinder 20a and is formed to extend about and clamp the standard of a foot rest member 29, whichextends vertically in the container and is of the form shown in Figs. 11 and 12. Said foot rest comprises side portions 2% which are of semi-cylindrical form and are in parallel engagement at their upper ends. Said portions diverge downwardly and are then curved to extend toward each other and have lower slightly diverging portions 290, the ends of which are bent substantially at right angles and secured to a segmental plate 29d'in any suitable manner as by welding. Member 29 makes a very eiiicient foot rest. The operator can have his foot extending transversely of the plane defined by the outer portions of members 231) and both feet can be used on the lower portion 29d. One foo-t could of course, be used and extend transversely of said plane or if desired, one foot could be used extending parallel to said plane and it would then be placed on a segmental plate 29d at one side of the portions 290.

A bracket 36 is formed by a band or strip of material, the same having its end portions bent substantially'at right angles to form flanges to engage the inner portion of container I5. These flanges will be secured to the container in any suitable manner as by spot welding. Bracket 30 has a bight portion 30a formed substantially midway between its ends, which bright portion is semi-cylindrical in part and has short parallel sides. Rod 3! has a portion 31b projecting at one side of bight portion 39a, which portion forms a handle. The top edge portion of bracket 30 at one side is depressed near the bight'portion 30a to form a small depression or groove adapted to receive handle portion 31a and act as a stop. Bracket 27 projects at one side of cylinder 20a and is'provided with an open topped recess 27a adapted to receive the bight portion 3 la of rod 3!.

Another bracket 32 is formed of a strip or band,

the same being bent at its ends to form flanges engaging the inner side of the container wall,

which flanges will be secured to said'wall in any .strip 33.

suitable manner as by spot welding. Bracket also has a bight portion 32a midway between its ends, the samehaving flaring sides, said bight portion being adapted to receive the end of bracket 21. a strip or flexible member 33 which has attached i-toits other end a hook 34. Hook 34 isengaged through an aperturein onesideof bracket 32 so .that cover In Figs. 13 to 17 a modified form of nozzle 36 islshown. This comprises a head portion36a illustratedas hexagonalin transverse cross section at its forward portion and cylindrical atits rearward portion. Saidxhead is bored adjacent its .front end to receive an oscillatable cylindrical plug 36b;slightly expanded .or riveted at its bottomto hold the same in place. .Said plug is apertured at its upper end to receive an operating handle 36c. Said handle has a downwardly extending front portion movable in a recess 36d M formed in the top ofhead 36 and having diverging side portions which form stops for said portion 36d. Said head 36a is bored and tapped at its rear end and a bore or opening 36c. extends from the bore in said head forwardly through the* same. Plug 36?) is provided with a transverse bore 36] of substantially the same diameter as bore 36c and in alignment therewith. Head36a also has a diverging opening 369 at its forward end with which aligns a bore 36h in plug 36b. The bore his cylindrical at its rear .end but is flattened verticallyso as. to have a substantially narrow elliptical shape at its front end. A bore 362' extends rearwardlythrough head 36din alignment with the bore36h. Said head 36a is shown as threaded upon the end of conduit 24a. Aferrule 3'! is shown on the hose or conduit 2i adjacent nozzle 36.

In operation nozzle 36 can be placed in position to discharge either through the bore .36e

whena full stream will be discharged or it can be placed in position to discharge through the small ellipticalend of bore 36h when a flat stream or spray will be discharged. The nozzle can be placed in either position by movement ofhandle 360. When handle 3Bcis in position with its frontend against one side of recess 36d bore 360 willalign with bore 36fso that the full stream will beidischarged. At this time bore 36z'is out of alignment with bore 3619. When the handle is moved so that its forward end is against the other side of recess 36d bores 36:; and 36) will be moved out of alignment as shown in Fig. 16 and ,bores 3B2, 35h and recess 36d will be in longitudinal alignment as shown in Fig. 17. The nozzle can thus be quickly changed from one position to another. l

In operation container IE will have the pump secured therein as shown in Fig. 1. The bracket 21 is disposed as shown, with one end. guided loosely in thebight 32a so that its other end projects into the bight a. The recess 21a can thus be brought into position so that when the handle of rod 3| is pushed downwardlybightportion 3m rotates in a downward direction and engages in recess 21a, thus pressing the bracket 21 and pump cylinder downwardly so that the inlet member 20b is pushed firmly against supporting member 26. Bight portion 3| :1 is moved somewhat past the vertical and as there is some resiliency in the bottom l5d the pump is held firmly in vertical position in the container, rod

3t acting as alocking means. The portionlBa Cover I6 has secured to its underside it is attached to the container by tamer; 7 With the "p'ump s'o idisposed ithe hose-'21 can be disposed 'withinthe container and the that the container l5ican be,filled withwater which will .thus coverthehose and pump. In the use for which=the device is designed, namely ;athat :of extinguishingfires causedby incendiary bombs,

which usually 1 contain magnesium, it is of the utmost importance "that every second possible be saved in the time that the extinguishing operationis commenced. With thecontainer l5 filled with water it is only necessary to :seize the same and carry itby means of'handle 18 to the place where thefireis burning. Cover 21 can then be quicklyremoved or thrown oif and the operator canpull out the hose ZIwvery quickly and direct the same toward the fire. The operator will immediately beginto operate pump 20 by recipro-' eating rodi2lle by means of the handle 20s. Re-

,ciprocation of-rod-Zfle will :on its upstroke, draw water into the cylinder 20a, said water passing through thevholes 26b of member 26 and into the cylinder through screen 200 and past valve20p which .can' be liftedto permit this entry. When rod 20a is depressed valve 20p will be closed and and the air chamber will function as is'well wall valve 201:. can rise so that thewater is forced into the rod 20c. When the rod is again depressed the water will be forced. into the rod and will 1 pass through openings 2llt to the space between said rod and cylinder 20a and will passyout through passage 202' into the hose. The chamberin the upper portion of rod 206 and the chamber handle 20s forms an air chamber for the double acting pump. Airwill be trappedin said chambers known in a manner that is well known in such a pump. When water is first played upon the. fire,

if it is a magnesium fire the nozzle 24 will have the slide 24b disposed so as to produce a spray.

. Magnesium can be best controlled by playing a burning portions.

fine spray of water thereon. Subsequently the slide 24b can be moved to produce a full stream from the nozzle and this can be used on other In onespecimen used in practice the hose, which was approximately 24 feet quick operation." The long, would discharge a spray about 12 feet in length through the nozzle while a full stream could be thrown 25 feet or-more.

As described, the water in container I 5 can be used very quickly and much time .thus saved in getting water onto the fire. After the water in container I5. is used up more water supply may be placed there in if \thisis convenient, or the pump can be then placed in another water supply. Such a water supply might be a bucket, tank, a household sink or a bathtub. When the operatoris operating the pump in the container he can place his feet I onthe' foot rests I571.. When thepump is being operated in some. other container or water supply the operatbrwillysteady the pump by placing his foot on thefoot rest 29a. Should the inlet member 20b be placed down on a flat surface the water can enter through the slots 20d.

From the above description it will be seen that I have provided quite a simple and yet very emcient fire extinguishing device adapted forvery device, as above stated, is

particularly designed for fighting fires set by incendiary bombs. With the described structure the extinguishing operation can be started very quickly after the fire starts. It is unnecessary to first find or go to a water supply or attach a hose to some faucet or water supply. The device can be quickly carried to the fire and almost instantly placed in operation. This is a great advantage as the first few seconds or minutes are very important in such a fire. The device hasthe great advantage of being'designed so that the pump can either be operated while it is in .the container or said pump can be quickly removed and used with a separate watercontainer or supply which might be placed in position while the watei in container I5 is being used. The device is compact and durable and easily operated. The same has been amply demonstrated in actual practice and is being commercially made. The same has proven very successful.

It will, of course, be understood that various changes may be made in the form, details, ar-

rangement and proportions of the parts, without departing from the scope of applicant's invention,

which generally stated, consists in a device capable of carrying out the objects above set forth, in the parts and combinations of parts disclosed and defined in the appended claims.

What is claimed is:

l. A device for extinguishing fires particularly such as caused by incendiary bombs, having in combination, a container adapted normally to hold a supply of water, a manually operable pump disposed in said container having a handle exposed for operating said pump when said con.

tainer is open, a delivery hose of comparatively great length secured to said pump, a support insaid container for said hose disposed some distance below the top of said container, said hose being adapted to be disposed on said support about said pump within said container between said support and the top of said container when the device is not in use whereby the device can be very quickly put into operation when a fire .posed for operating said pump when said contop of said container while in inoperative posi-- tainer is open and movable to position below the tion, a delivery hose of comparatively great length secured to said pump, a support in said container for said hose disposed below the top of said container, said hose being adapted to be disposed on said support about said pump within said container between said support and the top of said container when the device is not in use whereby said pump can be operated while in said container to discharge the water in said container and means for removably securing said pump in said container whereby said pump can be in- 'stantly released and moved outof said container to operate in another supply of liquid.

3. A device for extinguishing fires, particularly such as caused by incendiary bombs, having in combination, a container adapted to hold water, a pump having a cylinder disposed vertically within said container and having an operating handle, a bracket secured to said cylinder, a

second bracket secured tothe wall of said container, a member movably mounted insaid second bracket and movable to position to engage said first mentioned bracket and lock said pump in position in said container whereby said pump can be operated while in said container or be quickly-released and moved out of said container to be used with a separate supply of liquid.

4. The structure set forth in claim 3, said pump having a delivery hose thereon of comparatively great length, said hose being adapted to be coiled within said container about said pump, said second bracket acting as a support for said hose. 5. A device for extinguishing fires particularly such as caused by incendiary bombs having in combination, a container adapted normally to contain water, a removable cover for said container, a double acting pump disposed within said container having a cylinder extending vertically in said container, a piston rod reciprocable in said cylinder having a handle member at its top extending transversely thereof, said handle extending parallel to and adjacent said cover so as to be available for operation when said cover is removed, a bracket carried on said cylinder and means carried by the wall of said con-' tainer for engaging said bracket to hold said pump firmly within said container, said means being quickly releasable so that said pump may be removed from said container and used with a separate Water supply.

6. A device for extinguishing fires, particularly such as caused by incendiary bombs having in combination, a receptacle having a resilient bottom; a pump disposed within said receptacle at the bottom of said cylinder, an inlet member carried on the bottom of said cylinder, a supporting member carried on the bottom of said container pressed against said supporting member whereby said pump is resiliently held in position.

7. A device for extinguishing fires particularly such as caused by incendiary bombs, having in combination, a container adapted normally to hold a supply of water, a pump disposed within said. container, having a cylinder extending vertically therein, a bracket formed of a band secured to the wall of said container and having a bight portion with parallel sides formed between the ends thereof, a clamping rod journalled in said sides and having a bight portion therebetween, a second bracket secured to said cylinder having a portion disposed in said first mentioned bight and having a recess in its upper side, said bight portion of said rod being movable into said recess to press downwardly on said bracket and cylinder and hold said pump firmly in position in said cylinder.

8. The structure set forth in claim '7, said bracket on said cylinderextending to one side thereof, and a guide bracketsecured to the wall of said container having a recess formed therein into which said bracket extends.

9. A device for extinguishing fires particularly such as caused by incendiary bombs having in combination, a container adapted normally to hold a supply of water, a cover for said container,

fiexible meanssecuring said cover to said conat, the bottom thereof and. projecting outwardly therefrom, a pump removably held within said container having an operating handle exposed for operation when said cover is removed so that said pump may be operated while within said container and movable to inoperative position within said. container, a holding bracket for said pump withinsaid container, a long delivery hose secured to said pump, said hose being constructed and arranged to be disposed within said container at about said pump above anclsupported on said bracket and between said bracket and thetop of said container. l

10. A device for extinguishing fires particularly such as caused by incendiary bombs having in combination, a receptacle, a pump disposed within said receptacle having a cylinder extending vertically therein, abracket on said cylinder, a second bracket on the wall of said receptacle, a

crank carried in said second bracket and movable to position to engage said bracket onsaidcylinder 1 and hold said cylinderlocked in place with its lower end against the bottom of said container whereby said pump is held firmly in said recep tacle and may be operated therein to discharge the water from said receptacle and said pump may be quickly released andremoved from said receptacle to operate with a separate water supply.

11; The structure set forth inclaim- 10' and means at the bottom of said recept'aclefor preventing lateral movement of said pumpcylinder;

12. A device for extinguishing fires having in combination, a container adapted normally to hold a supply of water, a manually operable pump disposed in said container and comprising a cylinder, means for releasably holding said pump within said container and including a bracket secured to the wall of said container some distance below the top thereof, a hose of comparatively great length secured to said pump, said hose being disposable about said cylinder within said con tainer supported on said bracket between the x same and the top of said container.

HENRY E. BRANDT.

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