US1634977A - Fire-extinguishing apparatus for aircraft - Google Patents

Description

, 1,634,977 July 1927' 5. w. BURKE, JR

FIRE EXTINGUISHING APPARATUS FOR AIRCRAFT Filed July 1 2, 1924 IN VENTOR Geoxg'a W5 urlie-cln v e01valvef17 operated by the trigger 14 Patented July 5,1927.

' [UNITED swi s PATENT OFFICE.

(moron w. B'U'RKELJ'R, or mirror, cam.

IIBE-EZTINGUISEING APPARATUS FOR AIRCRAFT.

application filed July 12, 1824. Serial No. 725,595. I

This invention relates to fire extinguishing apparatus particularly designed and intended for use'on aircraft,

The object of the invention is to provide .5 an improved holder for portable fire extin-- guishers, especiall those of the pistol type,

for. securely and emountably carrying the same on the outside ofian airplane fuselage without danger of loss in flight or when 10 taking ofl' and landing, no matter in what position or where extinguisher is mfi n d The fore oing and other objects relating to details construction arebrought out in the course of the following detailed description, in which reference is made to the accompanying drawings wherein j Fig. 1 is a side view of a pistol type portable fire extinguisher demountablycarried 29 in a holder. constructed in accordance with the invention and connected detachably with the receiving end of the fire extinguishing system of the plane, as contemplated by the invention. a

Fig. 2 is a front view of Fig. 1.

Fig. 3 is an enlar ed elevational detail of the means for provi mg a detachable connection between the extinguishing system and the portable extinguisher, and

ap lication oftthe' system to an airplane.

a e portable fire extinguisher utilized as a part of the n herein contemplated is of the pistol grip .t the detailsof conpartly embrace the cylindrica Fig. 4 is a diagrammatic view showing-the as struction of which are escribed and claimed fully in applicants previous application, Ser. #688,480, filed Jan..25, 1924. Briefly, the extinguisher com rises a barrelll of a cylindrical form re erably, mounted on a' pistol gri .12 and aving a discharge nozzle 13 throng which extinguishing fluid is expelled under when the trigger 14 is depressed. pon de ression of t e trig- 'ger, a cartridge within t e breech 15 contain- 45 ing a compressed gas, is fru tuned, and su extinguishing fluid from the barrel 11 through the nozzle 13.- A hollow stem 16 joins the nozzle 13 with. the barrel 11 anda the flow of fluid from the nozz e 13..

- The extinguisher, when removed from the fire originates on either of the wings or'at any point on the fuselage or tail. Where a fire originates in aconcealed ortion of the plane, as for example, beneat the cowling 19,- extinguishing fluid is sprayed on it from 60 nozzles 20 at the discharge end of a conduit 21 having its --receiving end adjacent the holder 18- and detachably connected with the nozzle of the extinguisher. The conduit 21 is coupled at 22 with a connection 23 supported in a bracket 24 secured to a convenlent ortion 25 of the airplane fuselage on whic the holder 18 is also mounted. The bracket 24 is provided with a cam faced projection 26 which is arranged to engage the rear side of the stem 16 on the extingusher to cause the nozzle 13 to engage wedgingly :with a gasketed portion 27 on the end of the conmotion 23 toprovide a fluid andrpressure tight joint.

The hotder 18 is in the form of a bracket having two open-sided parallel approximately semi-circular spring cli s 28-which barrel 11 when the extinguisher is carried in the holder. A pair of wire links 29 of a substantially U -sha e are pivoted at 30 at the same end of e'ac of the clips 28 and bridge the gapssbetween the ends of the clips at points longitudinally spaced on the barrel 11 on op osite sides of the pistol grip extending latera ly' from the barrel 11. A bar 31 ex tending lon itudinally of the barrel 11 is slidable on t e links 29 toward the outwardly bent portions 32 on the clips 28 underthe action of springs 33 acting between the ends of the bar 31 and plates 34 secured to the ends of the links 29. A pair of end clips 35 confine the' barrel 11 against endwise movement. With this arrangement, the extinguisher is securely held against loss in flight or when taking 011 and landing, no matter in what gosition or where the extinguisher is carrie When it is desired to re- .move the extinguisher .for refilling, or in pl es the pressure medium or expelling t e controls tinguisher from the holder. lhe cam projection 26 engages behind the stem 16 and makes a proper fluid-tight joint between the extinguisher and the conduit 21 as the extinguisher is placed in the holder. It has beeafound desirable to enable the pilot, after pulling the trigger 14, to initiate the discharge of the extinguisher, to pay no further attention to the matter of discharging the extinguishing fluid into the system through the conduit 21, but to resume full control of the plane, in an efi'ort to make a safe landing, if that is desired For this purpose, a latch 36 pivoted at 3? above the trigger 14 is provided to drop down and engage in front of the trigger 14 under the action preferably. of a 1i ht spring 38 and lock the trig er in the otted line position indicated with the valve 17, in open position. The latch 36 has a lateral projection 39 which can be engaged and moved by the finger in operating the trigger 14 so that the trigger can be unlocked at will.

From the foregoing description, it will be apparent that I have provided a system of a unique character capable of combating fire originating at any point on the plane and from any cause. The portable extin isher forming a part of the system is quic ly removable to extinguish fires other than those which the system itself is arranged to have under control and the extinguisher is available for fires other than those arising on the plane itself so that the device could be used in the event of a fire breaking out in the hangar. The holder which securely and demountably carries the extinguisher usually on the outside of the fuselage ad'acent the cockpit, is particularly adapted or use in connection with the system described, but may be used apart from a system on planes not provided with such an installation.

I claim:

1. A holder for an article hav' a lateral projection, comprising an open-di fmd clip to embrace the article, a bar hingedly connected with 8. prong of thb clip lying in the path of movement of said projection on said articlewhen the latter is rotated in the clip to be moved by said rejection and afford egress for said article rom said clip.

2. A holder for an article havin a lateral projection, comprising an open-si ed clip to partly embrace the article and having a. closure to complete the embrace of the article, rotation of said article in said clip causing said projection to open the clip and permit the removal of the article therefrom.

3. A holder for a pistol gripfire extinguisher, comprising open-sided clips to emrace' the barrel of said extinguisher at points 5 seed lengthwise thereof, a her extending engthwise of the barrel as it is held in the clips hingedly connected by links at teasers bar being yieldably held at each end by the free end of each of said clips to be swung 1 .free and out of the way by engagement of the pistol grip on said extinguisher in the turning thereof in the clips to permit the removal of aid extinguisher.

i. A holder for a pistol grip fire extinguisher, comprising a bracket, a pair of and members thereon to confine, the ends of the barrel of said extinguisher, a pair of parallel open-sided clips to partly embrace the barrel from the side at points spaced lengthwise thereof, a bar extending lengthwise of the barrel as it is held in the clips connected at the ends with the same end of each of said clips on the same side of the barrel, said bar being movable by engagement of the pistol grip on said extinguisher in the turning thereof in the clips to permit the removal of said extin isher.

5. A holder for a pistol grip fire extinguisher, comprising a bracket, 9. pair of end clips thereon to confine the ends of the barrel of said extinguisher, a pair of open sided circular clips to snap over and pa brace said barrel from the side at mts spaced lon 'tudinally thereof pair 0 links bridging t e gaps between the ends of the clips pivotally connected to the same end of each of said clips on one side of the barrel, said clips having the opposite ends on the other side of the barrel bent outwardly to form abutments, a bar mounted on said links and held under the action of springs on said links behind said abutments and extending longitudinally of the barrel and m the path of movement of the pistol gri thereon to be moved in the movement of t clatter when said extinguisher is turned in the holder.

6. A holder for a pistol grip fire extinuisher, comprising open sided clips to emrace the barrel of said extinguisher at points spaced lengthwise thereon, a conducting pi e fixed to said holder, and means arrange to secure a wedging engagement of the extinguisher outlet and said pipe in the movement of the extinguisher about its longitudinal axis in mounting the extinguisher in said holder.

rtly em- 7. A holder for a pistol grip fire extinpoints spaced lengthwise thereon, a conducting pipe fixed to said holder, and means arranged to secure a wedging engagement of the extinguisher outlet and said p1 in the movement of the extinguisher :1 out its longitudinal axis in mounting the extin guisher in said holder, comprising a cam member mounted on said holder and a. part on said extinguisher engageable therewith.-

8. A holder for a pistol grip fire extinguisher, comprising open sided clips to emextinguisher by engagement of a pistol grip brace the barrel of said extinguisher at thereof in the turning movement of the expoints spaced lengthwise thereon, a bar extinguisher in the'clips about the longitudinal tending lengthwise of the barrel as it is held axis of the extinguisher to permit the re- 5 in the clips and resiliently connected at its moval of said extinguisher.

ends to the clips, said bar being mounted to In testimony whereof I aflix my signature. be swung free and out of the way of the GEORGE W. BURKE, JR.

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