US2552444A - Hose nozzle - Google Patents

Description

Patented May 8, 1951 HOSE NOZZLE Adolph Nielsen, Oakland, Calif., assigner, by mesne assignments, of one-half to Clarissa E. Card, Santa Rosa, Calif.

Application January 26, 1946, Serial No. 643,690

4 Claims. (Cl. 299-131) This invention relates to hose nozzles of the type employed to extinguish fires.

It is the principal object of my invention to provide an improved and simplified nozzle for re extinguishing purposes in which the character as well as the pattern of the fluid discharge may be quickly and easily varied by the operator during use so as to obtain a fluid discharge of characteristics suitable to meet different conditions.

O-ne form which the invention may assume 1s exemplified in the following description and illustrated by way of example in the accompanying drawings, in which:

Fig. 1 is a View in central longitudinal scction through a hose nozzle embodying the preferred form of my invention.

Fig. 2 is an end view of the discharge end of the nozzle.

Fig. 3 is a transverse sectional View taken on line 3--3 of Fig. l.

Fig. 4 is a fragmentary View in central longitudinal section, showing a slightly modified form of connection between the valve adjuster and the nozzle.

Fig. 5 is a fragmentary view in elevation of the modiiied form of the structure shown in Fig. 4.

Figs. 6 to 9, inclusive, are fragmentary views, showing the spray head end of the nozzle in longitudinal section and showing it in various conditions of adjustment.

Referring more particularly to the accompanying drawings, It! indicates a hose nozzle for re extinguishing purposes. This nozzle is adapted not only for the purpose of directing an extinguishing iiuid on the nre, but also to provide a water spray curtain which in addition to extinguishing uses may be employed to enable a fireman to closely approach the re for various purposes.

The nozzle comprises a rigid fluid conductor tube II which may be of any desired length. In some instances this tube may be as long as six or eight feet, and in other instances it may be comparatively short, depending upon the use te which the nozzle is te be put. One end of this conductor tube II is fitted with a connector I2 by means of which it may be detachably attached to the end of a re hose. At its opposite end the conductcr tube li is tted with a cylindrical head I4 which is xed on the tube, as illustrated. This head hl is of an external diameter considerahly greater than the diameter of the conductor tube II, as illustrated, and likewise is formed with a cylindrical chamber l5 extending inwardly from its cuter end, which likewise is of a diameter greater than the diameter of the tube.

Extending transversely of the chamber i5 and formed as an integral part of the head I4 is a spider I6 to which is rigidly xed a valve disk Il, so fixed to the spider I6 that it is arranged concentrically with respect to the head I4 and the conductor tube i I. The valve seating face I8 of the valve disk it is disposed perpendicularly to the axis of the tube II and at a spaced axial distance from the outermost end of the head I4, as illustrated.

The diameter of the valve seating face I 8 of the valve disk il is just slightly greater than the external diameter of the head I4, This is so that when fluid under pressure is` conducted through the conductor tube il, it will pass outwardly through the chamber I5 and then be deflected outwardly by the valve seating face I3.

The valve seating face I3 of the valve disk I'I is adapted to cooperate with a valve seat I9 formed at the outer end of a cylindrical sleeve valve 20. The inner periphery of the valve sleeve 2i) is threaded complementary to the threads on the external perimeter of the head member I4 so that it may be threaded thereon. I intend that the valve seat It be moved toward and away from the valve face it of the valve disk I'I by longitudinal movement of the valve sleeve 23 relative te the head I4 and the valve disk I l.

It will be seen that when the iuid is conducted along the conductor tube I I, that it will discharge through the chamber iii of the head it and pass through an annular valve between the valve face I il of the Valve disk il and thevalve seat I 9. The amount of water discharged and the character of the spray. that is, whether it is in nely comminuted form or not, will be determined by the amount ef annular opening between the valve member il and the valve seat I9.

I also provide means for controlling the pattern of the spray which is discharged, as previously referred to. That is to say, the stream as it discharges will be naturally conical, and I provide a deiiector means, as will be described, to change the angularity of this conical spray from a point where it is almost a disk to a point where it is substantially a cylinder of a diameter just slightly larger than the external diameter of the valve disk Il.

` I Wish to point out here that to make the sprayV in the form of a disk is, highly desirable in that in addition to having extinguishing characteristics, it enables the fireman to approach the fire behind a curtain of water spray or fog. How-- ever, the pattern of the spray can be readily adjusted by the reman from the disk form to a straight stream form, or any intermediate point, to suit the conditions which are met.

I accomplish this by providing a circumscribing cylindrical deflector cuil 2| of an internal diameter somewhat larger than the external diameter of the valve disk I1 and valve sleeve 29. This deilector cuff 2l is rigidly xed at the forward end of a deflector sleeve 2.2 reciprocably tting the external periphery of the valve sleeve 2t. By

cuil` relative to this valve opening, the character of the spray is adjusted, as most clearly illustrated in Figs. 6 to 8, inclusive. In Fig. 6 the spray .is shown .as assuming an almost disk-like form, while in Fig. 7 it is shown as assuming almost a cylindrical form of a diameter comparable to the internal diameter of the cuff 2l of the deflector.

I intend utilizing the deflector sleeve 22 as the medium for adjusting the amount of valve opening between the valve face IS and the valve seat I9. This is accomplished, as will be described, by rotation of the deflector sleeve .22. As previously described, this deflector sleeve 22 is -reciprocably mounted on the valve sleeve 2i). Formed at diametrically opposite points in the-delector sleeve 22 are longitudinal slots 23 which are engagedby radially `extending keys .24 xed to the valve sleeve 28. The engagement .of the keys .24 in the slots 23 :permits relative axial movement between the deector sleeve 22 and the valve sleeve 2E), but prevents relative .rotative movement. Consequently, by rotating the deiiectcr sleeve 22, -the valve sleeve will be revolved in unison therewith, such revolving of the valve sleeve V2i? causing it to move axially relative to thedeilector sleeve 22 and the head I due to the threaded engagement between the valve sleeve 2Q and the head I4. The direction of axial movement of the sleeve 20 will, of course, be determined by the direction of rotation of the deflector sleeve 22. Thus, by rotating the deflector sleeve 22, the valve sleeve 2U may be moved axially toward and away from the valve face I8 of the valve disk Il, thus regulating the amount of valve opening through which the water may discharge.

To 4change the pattern of the spray, it is only necessary to move the deflector sleeve 22 laxially relative to the xed valve face IB and thereby change the pattern of the spray, `as previously -described.

I provide means for rotating the deilector sleeve 22, which means comprises an adjuster tube 25 concentrically mounted'on the conductor tube I l but rotatable and reciprocable with respect thereto. At the forward end this adjusted tube 25 is fixed, as illustrated, to the innermost end of the delector sleeve 22. At its .opposite end the adjuster tube is fixed to -a valve adjuster .26. The valve adjuster is rotatably connected or collared to the hub 21 of a deector adjuster 28. The collar connection between the valve adjuster 26 and the deiector adjuster 28 is such that .the twoare relatively immovable axially but are relatively ro- 4 tatable. The delector adjuster 28 is threaded on a sleeve 29 relatively xed on the conductor tube I I by means of a chuck 30.

By rotating the deflector adjuster 28, it willV move axially along the sleeve 29 and relative to the conductor tube II, causing endwise movement of the valve adjuster 26, theadjuster tube 25 and the deilector sleeve 22, thereby adjusting the axial position of the deflector cui 2I relative to the valve disk I'I. .This changes the pattern. of the spray as previously described.

To .change the valve opening, it is merely necessary to .rotate the valve adjuster 2t?, which wiil be collared in a stationary position due to its connection with the deflector adjuster 28, so that it is held against axial movement. Such rotation,

however, rotates the deflector sleeve 22 which will rotate the valve sleeve 2?) through the medium of the engagement of the keys 2d with the slot-s 23. Such rotation, .because of the threaded connection between the valve sleeve and the head, will move the valve sleeve 2i] axially toward or away from the valve disk I1, depending upon the direction of rotation. This enables either opening or closing of the valve and, of course, adjusts the degree of opening.

By simultaneously rotating the members 2t and 28, the deflector sleeve may be adjusted to vary the pattern of the spray and at the same time the valve opening will be adjusted to vary the quantity of water permitted to discharge through the nozzle end.

In Figs. 4 and 5 I have shown a-slightly diierent form of connection between the delector adjuster 28 and the sleeve 29. In thefcrm shown in these two gures, a key Zeeland a notched cam slot 28a are substituted for the threaded connection between the adjuster 28 and the sleeve 29. This cam slot, however, serves the same function in that turning movement of the adjuster relative .to the sleeve 2S effects endwise or axial movement of the adjuster 28 relative to the sleeve 29. The key 29a may be latched in any position along the cam slot 28a in that the latter is notched, as at 28h, to effect latching of the adjuster 28 in any set position.

From the foregoing it is obvious that I have provided a relatively simple hose nozzle construction by means of which the character or" 'the spray and the pattern of the spray discharged may be 1c'uickly adjusted, while the device is in operaion.

I desire to point out that when the valve is but slightly open and the delector cuff 2I is positioned so as to provide a substantially disk-like spray with the water discharging substantially radially from the end of the nozzle, a fog or spray screen is provided for protection of the holder of the equipment. When the valve is more widely open and the deector cuff 2| projected forwardly, a strong impinging stream of water may be projected from the forward end of the nozzle. The operator of the device can, at his option, adjust the spray, not only for the quantity of the water discharged and its character, but for the pattern of the spray likewise.

While I have shown the preferred form oi my invention, it is to be understood that various changes may be made in its construction by those skilled in the art without departing from Vthe spirit of the invention Yas defined in the appended claims.

Having thus ldescribed my invention, what I claim and desire to secure by Letters Patent is:

1. A nozzle comprising a conductor tube, a valve xed to one end thereof, a valve sleeve threadedly mounted on said tube such that said sleeve can be screwed toward and away from said valve in response to relative rotation between said sleeve and said tube, a cuff slidably mounted on said sleeve for sliding movement independent of said sleeve, means for rotating said culi and sleeve with respect to said tube, means connecting said cuff and sleeve for simultaneous rotation, and means for sliding said cuff independently of rotation thereof.

2. A nozzle comprising a conductor tube, a valve fixed to one end thereof, a valve sleeve threadedly mounted on said tube such that said sleeve can be screwed toward and away from said valve in response to relative rotation between said sleeve and tube, a cuff slidably mounted on said sleeve for slidable movement independently of said tube and sleeve, an adjustor tube slidably and rotatably mounted on said conductor tube and xed with respect to said cuff, adjustor means fixed to said adjustor tube and spaced from said cuff and sleeve for rotating said sleeve, and means abutting said adjuster means and rotatable relatively thereto for sliding said adjustor tube.

3. A nozzle comprising a conductor tube, a valve fixed to one end thereof, a valve sleeve threadedly mounted on said tube such that said sleeve can be screwed toward and away from said valve in response to relative rotation between said sleeve and tube, a cui slidably mounted on said sleeve for slidable movement independently of said sleeve, means for imparting rotation to said sleeve in response to rotation of said cuff, an adjustor tube slidably and rotatably mounted on said conductor tube and Xed with respect to said cuff, adjuster means fixed to said adjustor tube and spaced from said cuif and sleeve for rotating said sleeve, and screw means abutting said adjustor means and rotatable relatively thereto for threading axially of said tubes to slide said sleeve.

4. A nozzle comprising a connector tube, a valve :xed to one end thereof, a valve sleeve threadedly mounted on said tube such that said sleeve can be screwed toward and away from said valve in response to relative rotation between said sleeve and tube, a cuff slidably mounted on said sleeve for slidable movement independently of said sleeve and means for rotating said sleeve in response to rotation of said cuff, an adjustor tube slidably and rotatably mounted on said connector tube and xed with respect to said cuff, adjuster means xed to said adjustor tube and spaced from said cuff and sleeve for rotating said sleeve, and means abutting said adjustor means for sliding said adjustor tube and cuff, said means comprising an annular member circumscribing said connector tube, rotatable relatively thereto and to said adjustor means and abutting the latter and having-a spiral slot formed therein, and a pin seated in said slot and fixed with respect to said connector tube.

ADOLPI-I NIELSEN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 2,089,304 Stein Aug. 10, 1937 2,127,188 Schellin Aug. 16, 1938 2,252,698 Button et al Aug. 19, 1941 FGREIGN PATENTS Number Country Date 398,708 Great Britain 1 Sept. 21, 1933

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