US3497141A - Hose nozzle spray attachment - Google Patents

Description

Feb. 24, 1970 T 5. RYDBERG 3,497,141

I HOSE NOZZLE SPRAY ATTACHMENT Filed Feb 5. 1968 INVENTOR: SIGGE RYDBERG United States Patent 3,497,141 HOSE NOZZLE SPRAY ATTACHMENT Sigge Rydberg, 33 N. Middleton Ave., Palatine, Ill. 60067 Filed Feb. 5, 1968, Ser. No. 703,053 Int. Cl. Bb 1/26 US. Cl. 239512 2 Claims ABSTRACT OF THE DISCLOSURE There is provided a spray attachment to be used with a hose nozzle such as a fire hose nozzle. The attachment includes a spray baflle connected to the nozzle through a length of flexible line. The attachment has a geometrical shape so that the attachment will follow or track with the stream from the nozzle.

This invention relates to attachments for a hose nozzle, particularly to a spray attachment or batlle associated with a fire hose nozzle.

It is frequently desirable to provide a spray of water against the inner surface of a burning wall or within a structure, rather than a stream of water which may miss the burning surface. This may be particularly desirable in situations such as where an inside wall of a room is burning and the stream must be directed through a window or other opening. It would be desirable to provide a spray into the room which will cover all of the walls of the room. Moreover heretofore it has frequently been neces sary to direct the stream of a fire hose from a snorkel or otherwise to get close to the burning structure in order to direct the stream even near the burning elements. Additionally difliculties are frequently encountered with the larger size fire hoses in that they provide a substantial reaction and require a crew of men to hold and direct the nozzles.

Heretofore attachments have been known which may provide selected spray patterns starting at the nozzle and extending out relatively short distances. However it is frequently desirable to provide spray a greater distance from the hose nozzle, and more particularly to cause dispersion of a confined stream at a distance from the nozzle.

Accordingly it would be desirable to provide a baflle or attachment for a hose nozzle which will track or follow the stream of water from the nozzle; which will spray or diffuse the stream into a spray in a desired direction; which can be directed into rooms, through windows, or other openings from a remote distance; and which will minimize the reaction of the discharging stream to the hose nozzle. The force of the dispersed stream can also be made low enough to permit the stream to be directed on personnel.

It is therefore an object of the present invention to provide a spray attachment for a hose nozzle which overcomes the above mentioned difficulties and which posseses the above mentioned advantages.

Yet a further object of the present invention is to provide a new and improved spray attachment for a hose nozzle.

Yet a further object of the present invention is to provide a spray attachment for a hose nozzle which will track and follow the discharging stream at a remote distance from the nozzle.

Further objects and advantages of the present invention will become apparent as the following description proceeds and the features of novelty which characterize the invention will be pointed out with particularity in the claims annexed to and forming a part of this specification.

In accordance with these and many other objects of ice the present invention there is provided a new and improved spray attachment for a hose nozzle of the type including a generally converging body adapted to intercept a stream of discharging fluid from the nozzle so that the attachment will track and follow the stream to a remote point. A flexible tie secured to the body is used to control the spacing between the nozzle and the spray attachment. Suitable bafile means are secured to the body of the attachment for deflecting the stream in the desired direction.

For a better understanding of the present invention reference may be had to the accompanying drawings wherein:

FIG. 1 is a somewhat pictorial view illustrating the use of a new and improved spray attachment according to the present invention;

FIG. 2 is a cross sectional view of the spray attachment illustrated in FIG. 1, according to the present invention;

FIG. 3 is a cross sectional view of another embodiment of a spray attachment acording to the present invention;

FIG. 4 is a cross sectional view of yet another embodiment of a spray attachment according to the present invention; and

FIG. 5 is a front view of the spray attachment of FIG. 4.

Referring now to the drawings and particularly to the embodiment of FIG. 1, there is illustrated a fireman 10 using a spray attachment 12 attached to a fire hose nozzle 13 in accordance with the present invention. As therein illustrated, the spray attachment 12 includes a generally converging tubular body 14, here illustrated as frustoconical in shape, having its large open end facing the hose nozzle 13 and connected therewith through a flexible tie line or cable 15. The force of discharging fluid 18, striking the inner wall of the body 14 will cause the spray attachment 12 to track and follow the discharging stream maintained substantially centered therewith. The body 14 may be attached with the tie 15 in any suitable manner and, in the illustrated embodiment of FIG. 1, the tie 15 includes a single strand 15a, which may extend forty feet or more, and divides into four connecting strands 151) secured to two pairs of diametrically opposed apertures 26 in the forward edge of the side wall of the body 14.

A suitable baffle is provided for directing the stream outwardly in a desired direction. In the embodiment of FIG. 2, the bafile includes a nozzle shaped ring insert 20, best illustrated in FIG. 2, spaced apart from the body 14, having a converging tubular portion 20a that termimates in a reverse bend 20b which extends around the remote edge 14a of the body 14. Thus fluid in the stream 18 striking between the tubular portion 20a and the inner surface of the body 14 will be deflected by the reverse bend 20b into a generally rearward direction. The insert 20 is secured to the body 14 in any suitable manner as by straps or ties 21. In addition the baflle includes an end plate 24 generally transverse to the stream, spaced apart from the reverse bends 20b of the insert 20 by straps or ties 25. The end plate 24 is somewhat flat, but provided with a centrally disposed inwardly projecting spherical portion 24a positioned to intercept the stream passing through the throat of the insert 20. Thus fluid from the stream 18 passing through the insert 20 will strike the end plate 24 and will be deflected generally outwardly, as also illustrated in FIG. 1.

It will be understood from the illustration of FIG. 1 that the spray attachment includes the tubular body 14 fixedly secured with reference to the nozzle 13 through a suitable flexible tie. The geometric shape of the converging body 14 will cause the body 14 to track the stream 18 from the nozzle. Moreover suitable baflle means, here shown as the insert 20 and end plate 24, obtain the desired spray distribution.

FIG. 3 illustrates another embodiment of the invention wherein there is provided a generally frusto conical body 34 to which is attached a bafile 36 connected thereto by suitable straps 38. The baffle 36 is of generally circular shape formed of two reverse bends 36a so that a stream intercepted by the body 34 will strike against the baffle 36 and be deflected outwardly and generally rearward.

FIGS. 4 and 5 illustrate an embodiment of the invention wherein a pair of transverse webs 45 extend between the inner side wall elements of a frustoconical body 46. A flexible connector or tie 48 is connected to the webs 45 as at the point indicated at 45a. A suitable bafile 47 is secured to the remote end of the body 46 in any suitable manner, as by an extension 45b of the webs 45. The webs 45 add rigidity and aid in stabilization and tracking of the spray attachment.

For projecting the spray a short distance at low pressure, a telescoping flexible tie may be used if desired.

From the above description it will be seen that the spray attachment according to the present invention is provided with a geometry which will track the stream 18 of fluid from a nozzle 13. Moreover the attachment may be used from short distances up to one hundred feet or more so that the spray may be directed through windows or other openings of rooms and buildings. The force on the attachment provides a counterforce to the reaction of the stream 18 at the nozzle 13, thus minimizing the reaction force of the nozzle 13 and making the nozzle 13 easier to handle and direct.

Although several embodiments of the present invention have been described by way of illustration, numerous other embodiments may be provided. For example, the geometry or the configuration of the baflle can be changed to obtain the desired spray pattern. Thus it will be apparent that numerous other modifications and embodiments will be devised by those skilled in the art which will fall within the true spirit and scope of the present invention.

4 What is claimed as new and desired to be secured by Letters Patent of the United States is:

1. A spray attachment for a nozzle such as a fire hose comprising:

a generally converging body adapted to intercept and track a stream of fluid;

baffle means secured to said body for directing said intercepted stream outwardly;

transverse web means extending between inner side wall elements of said body; and

flexible tie means for securing said body a remote distance from a nozzle.

2. A spray attachment for a fire hose and the like comprising:

a nozzle member having an unobstructed nozzle for directing a stream of fluid from the discharge end thereof;

a generally frusto-conically shaped body open at both ends and adapted to intercept and track a stream of fluid;

flexible tie means having one end secured to said body positioning the larger end of said body toward said nozzle member and having its other end secured in proximity to said nozzle member out of interference with a discharged stream of fluid; and

baffle means secured to said body for directing an intercepted stream outwardly.

References Cited UNITED STATES PATENTS 1,674,480 6/1928 Nelson 239-500 X 1,745,297 1/ 1930 Harry 239-504 2,375,528 5/1945 De Flon 239-504 X 2,448,472 8/ 1948 Schott 239-505 2,695,069 11/ 1954 Bocrner 239-461 2,712,962 7/1955 Goddard 239-500 X SAMUEL F. COLEMAN, Primary Examiner

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