US1823277A - Fire hose nozzle - Google Patents

Description

Sept. 15, 1931.

G. F. LUM 1,823,277

FIRE HOSE NOZZLE Filed June 10. 1950 w w w MT I C INVENTOR 1; BY Q 60% 61. 256;

% ATTQRLKY Patented Sept. 15, 1931 NITF D LS'TA GEORGE E. LUM, or nn'rnorr, MICHIGAN FIRE HOSE NOZZLE dApp lication filed June 10, his invention relates to nozzles and paritic'ularly fire'hose nozzles. y

' Anobject of the invention is to adapt a fire hose nozzle to discharge a secondary stream of water inaddition to that directed toward ajfire', and to thereby form a water shield" rotecting the firemen, holding the nozzle, rom heat, smoke, and flames.

Anotherobject isfto' provide upon such a nozzlean adjustable regulator forthe shield Mformingstream, whereby the latter may on "occasion be deflected'at a rearward angle to continually drench those holding thenozzle to increasetheir protection from heat and flames. I V 1 Still another object is to adapt a plurality of different deflector disks to be interchange ably mounted upon'a fire hose nozzle to permit'a shield-forming stream to be circularly discharged at selective angles.

These andvarious other objects the invention attains by the construction hereinafter described and illustrated in the accompanyng; d g ,,whe i Figklis a view .ofthe improved nozzle in ;side.elevation. n

.Fig. 2 is a longitudinal, axial sectional "View of; said nozzle, taken upon the line 2+2 ofFig. 1. r 1 Fig. 3 is; an enlarged fragmentary view I of a portion of Fig 2, showing a changed adjustment of the parts. 1 i

-Fig; 4=fis across section, taken upon the line 41 A- of Fig. 2, and primarily showing 5 openings'for a secondary stream of water formed around a central passage for the primary stream. v

Fig. 5is a cross section taken upon the line 55 of '-Fig. 2 and disclosing deflector elements for the secondary stream.

Inthese views, the reference character 1 designates the elongated tubular main body of the improved nozzle, said body having secured on its rear end by screw threads or other suitable means a female coupling mem- 5o a plug 5' internally threaded in said body 1930. Serial No. 460,218.

sion 6 is integrated with said plug and the extension 7 is detachably threaded into the central opening of the plug. Around said opening, the plug is formed with a number of'circumferentially spaced passages 8 for a secondary stream of Water. The extension 6 is adapted to detachably carry and discharge into a nozzle tip 9, and as illustrated, a coupling collar 10 has internal threaded engagement with said extension and external threaded engagement with said tip.

Rearwardly of the collar 10, a deflector disk 11 is centrally threaded upon the extension 6, and has its rear face of a slightly concaved'frustro-conical form to laterally defleet the circular stream discharged from the secondary water passages8. For normally cutting 0E the secondary stream and regulating its volume, there is externally threaded on the body 1 a sleeve 12, having its forward end flanged inwardly in an approximately spherical curve and centrally formed with an opening 13 establishing a substantially uniform clearance between said curved end and the extension 6. By its rotation upon the body 1., the sleeve 12 may be firmly engaged at its forward end with the deflector disk 11 to completely out off the secondary stream, or may be regulably spaced from said disk to suitably control the volume of the secondary stream. By inwardly curving the forward end of said sleeve, the secondary stream is directed against the base of the disk 11, so as to most effectively utilize the curved deflecting face of said disk.

For regulating the secondary stream, there is adjustably threaded on thecoupling 10 a collar 14 peripherally rearwardly flanged, as indicated at 15, in outwardly spaced relation to the disk 11. Said collar by its rotation on the: coupling 10 may be established as shown in Fig.3, to clear the water shield laterally discharging from the disk 11. By shifting said collar rearwardly to the position exemplified in Fig. 2, the water shield may be directed against the flange 15 as it leaves the disk 11, and be thus thrown back to drench'the firemen with water. Preferably, the rear end of the sleeve 12 carries carried by the rear portion of the body'l,

being formed preferably of leather or like durable, flexible material secured to a sleeve 19 of like material embracing said body. An annular flange 20 is preferably formed exteriorly upon the body l adjacent to the forward end of the sleeve'l9,"coacting with ,the couplingmember 2 to resist sliding of p I longitudinally adjustable upon said nozzle forwardly of said deflector for imparting a said sleeve lengthwise of the nozzle.

'In the" use of the described nozzle, the hanf dles 18-,are. preferably each gripped by a fireman, one of whom also grips the sleeve 12. :If the fire which is being fought is not .un comfort'ably close to the firemen, the sleeve 12 is maintained tight against the-disk 11,

' shutting off the secondary or shield-forming stream. When the presence of a water shield is desirable, it is .necessary only to retractively rotate the sleeve 12 whereby water will discharge through the openings 8 and 18,

' and be circularly deflected by the disk 11.

If .the radiation of heat and discharge of smoke towardthe firemen isrelativelyslight, the secondary flow established by the sleeve 12 may be correspondingly slight, producing a thin water shield. Where greater protec- :tion necessary, the. sleeve 12 maybe retracted to establish a water shield of maximum thickness. When desirable for the {comfort and :safety; of the firemen to keep rearwardly .to such an extent as will cause theashie'lding stream to play upon the bodies .of'the firemen where desired. Preferably, a .hook12l will be attached to one of the handles 1 by when desired to a ladder rung, oriother .suppo'rt.

18 to permit attachment of the nozzle there- While it is apparent that the illustrated embodiment of my invention herein dis-- closed is well calculated to adequately fulfill the objects and advantages primarily stated,

it is to be understoodthat the invention is susceptible .to variation, modification and change within the spirit .and scope of the subjoined claims.

What I claim is: V r r 1. fire vhose nozzle comprising an elongated tubular body, a hose coupling member carried by the rear end of said body,

a plug inserted in the forward end of said "body having a central andv an eccentric outlet, akforward tubular extension from said i Y plug in communication with the central outr Elet of the plug and of lesser exterior diametion.

eccentric outlet rearwardly of said end, a

deflector member-carried by said nozzle for- V wardlyof and in registration with said secondary outlet, means carried by saidnozzle for vo'luinetrically regulating the discharge from saidsecondary outlet, and ,a member rearward angle to the deflected stream.

3. A fire hose nozzle comprising an elongated tubular body, a hose coupling mem- Q 'ber carried by said body at its rear end, a member carried bysaid body at its forward end having a central and an eccentric outlet, a nozzle-tip forwardly axially projecting from said outlet-forming member, a do flector disk carried by the outlet-forming member in registration with the eccentric outlet, means carried by the nozzle "for volumetrically regulating the discharge from the secondary outlet, anda regulator collar for the shield-forming stream carried by said nozzle forwardly of saidydeflector disk and rearwardly annularly flanged to intersect'and rearwardly deflect said stream.

LIA fire hose nozzle having an axial primary outlet and an eccentric secondary outlet, a deflector exteriorly'carriedby thenozzle forwardly of and opposite to said secondary outlet, means for'regulating-the volume of discharge from said secondary out let, and means longitudinally adjustable upon the nozzle adapted to intersect and further deflect the stream outwardly directed by'said deflector.

ried by said nozzle rearwardlyof said disk 5. In a fire :hose nozzle having a primarycoacting with the disk to volumetrically" regulate the secondary discharge, and means carried by the nozzle forwardly of the disk, coacting with the disk to directionally -aregulate the secondary discharge.

In testimony enonen F.

whereof I sign this .specifica-

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