US2364905A - Nozzle - Google Patents

Description

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J. O. LEWIS Dec. 12, 1944.

NOZZLE 2 Sheets-Sheet 1 Filed March 25, 1943 V IN VEN TOR. 6/ 0/02 0. Iowa's Patented Dec. 12, 1944 NOZZLE John 0. Lewis, Woodside, Long Island, N. Y., as-

signor to Delta Nozzle Corp., New York, N. Y., a corporation of New York Application March 25, 1943, Serial No. 480,427

12 Claims.

This invention relates tonozzles, and more particularly to that type which is adapted to be attached to a hose for fire-extinguishing or other purposes.

An object of the invention is to provide a nozzle of this character in which either a solid stream of water or a spray, or so-called fog or mist, may be ejected, the latter being attained in one embodiment of the invention by means of the impingement of a plurality of converging streams, and in another embodiment bythe provision of annular outlets; the change from a solid stream to a spray being secured by the manual operation of a control device provided in the nozzle.

The invention also contemplates the provision of a simplified shut-oil means also readily controlled at the -nozzle.

In a number of nozzles in useat the present to permit the cleaning of these openings. The

present invention not only provides uninterrupted -stream passages, but also enables the force of the stream to be used in cleaning the spray openings.

The invention further contemplates the inclusion in a nozzle of this character, means by which the flow may, if desired be shut off by simple wrist movement; means by which a relatively heavy stream of water-can be quickly changed to a spray or mist, and means by which the spray openings can be cleaned out by the flow of one or more streams.

The invention additionally contemplates, in a nozzle of the character described, the provision of all of the main parts or elements of the device in a moulded or plastic material, whereby the nozzle and its operating elements may be easily and economically produced by moulding operations.

These and many other objects areaccomplished by the structure hereinafter described and more particularly pointed out in the claims appended hereto. l

In the accompanying drawings, forming a part hereof, i

Fig. l is anelevational view, with parts in section, of a nozzle constructed in accordance with the invention;

Fig. 2 is a side elevation of the end portion of the nozzle, the View being taken at right angles to that of Fig. 1; parts are therein fragmentarily shown to disclose construction;

Fig. 3 is a view similar to Fig. l, with parts in section;

Fig. 4 is a plan view of the nozzle with the parts in position to project a spray or so-called ff e; r

Fig. 5 is a plan view showing the parts arranged to cause a stream to be projected from the nozzle;

Fig. 6 is a side elevation of the grooved head portion of the nozzle;

Fig. 7 is a similar view, but taken at right angles to Fig. 6;

Fig. 8 is still another view of the head taken at another angle;

Fig. 9 is a sectional view on the line 99 of Fig. 4, looking in the direction of the arrows;

Fig. 10 is a sectional view on the line Ill-l0 of Fig. 5, looking in the direction of the arrows;

Fig. 11 is a sectional view on the line I l-I l of Fig. 5, looking in the direction of the arrows;

Fig. 12 is a sectional view through the body and head of the nozzle, showing the parts in the position of shutting oil the flow;

Fig. 13 is a side view of the endportion of the nozzle, with parts fragmentarily shown, the

nozzle elements being in position stream;

Fig. 14 is a sectional view on the line I l-44 of Fig. 9, looking in the direction of the arrows; and

Fig. 15 is a sectional view on the line l5l5 of Fig. 9, looking in the direction of the arrows.

The nozzle shown consists of four main parts, all of which may be made, if desired, of plastic material, so that it is possible to make the entire device of such material by moulding processes. i

The four main parts just referred to are those indicated at I, 2, 3 and 20. For convenience, the part indicated at I will be hereinafter referred to as the body or body portion, While that shown at 2 will be termed the head; that shown at 3 will be described as the top or top member and will be termed the lockin ring.

At one end, the body portion I is internally threaded, as indicated at 4 (Fig. 9) for the reception of the standard coupling found on the end of a hose or other fitting to which the nozzle to project a is to be attached. Extending longitudinally through the body portion is an axial water-passage 5 which is divided near the end of the body portion into two spaced stream passages 6 and 1. The end of the body portion is provided with a compressible washer or gasket 8 which, while surrounding the stream passages 6 and I, does not extend over or cover them. This end of the body portion is provided with screw threads 9 which are received in the internal threads ID in the head 2. The head is externally fluted to facilitate its manual rotation. A gasket 8a aids in preventing leakage between the threads 9 and Ill.

The threaded portion 9 of the head 2 is formed with a groove into which a stop pin |2 secured in the wall of the head extends, said pin being movable in the groove l as the head is manually rotated to shut ed the flow of water, as will be presently explained.

As will be observed in Figs. 9 and 10, the head 2 is provided with a pair of spaced stream passages l3 and 14 which are adapted to align with the passages 6 and 1 in the body when the stop pin I2 is at one end of the groove By manually rotating the head 2 on the threads 9, the passages l3 and M are disaligned with those indicated at 6 and I, as shown in Fig. 12, and the water flow is shut off, the gasket or washer 8 interposed between the head and body of the nozzle being compressed and providing an effective cut off and seal.

Th end of each of the stream passages I3 and I4 is flared to provide a conical pocket l5 constituting a continuation of the passage in which it is formed. It will be observed that the inner surface of each of the pockets I5 is formed with three angularly disposed grooves I6, I! and I8.

Mounted On the head 2 is the top member 3, said top member having a limited rotative movement on the head, as well as a limited axial movement thereon, as will be hereinafter described. The top member 3 is provided with a side wall I9 around which extends the locking ring 20 provided with bosses 40 through which inwardly projecting, diametrically opposite stop or guidepins 23 extend and are guided in circumferential grooves 2| and 22 formed in the head 2.

The end wall 24 of the top is provided with an outlet opening 25 which is flared and is substantially oval in shape. Extending inwardly from the wall 24 and preferably formed integrally therewith, is a pair of conical plugs 26, each of which is shaped to fit within one of the conical pockets l5. Each of the plugs 26 has its face formed with three grooves 21, 28 and 29, so that when the plugs are seated within the pockets l5, the grooves 21, 28 and 29 will register respectively with those formed in the pocket and indicated at l6, l1 and I8. In other words, groove 21 will co-operate with groove l6 to form an angular spray opening; groove 28 will co-operate with groov IT to form a similar opening, and groove 29 will co-operate with groove l8. Since the spray openings so formed are angularly disposed, those in one group of three openings will direct streams which will impinge against the streams emitted from the other three openings. That is to say, a stream emitted from the opening formed by the grooves l8 and 29 will impinge against a stream ejected from the second opening formed by the other grooves I8 and 29. Similarly, the flow from opening formed by grooves I1 and 24 will impinge against a flow from the second like opening. In other words, through the arrangement disclosed, two sets of three spray openings are provided, the streams from one set of openings impinging against those emanating from the other set. As is Well known in this art, the impingement of streams tends to break up the flow into a fine mist or so-called fog found useful for extinguishing fires.

In order to change the flow from the nozzle from a stream to a spray or from a spray to a stream, it is necessary to properly locate the plugs 26 relative to the pockets l5. When said plugs are seated in the pockets, as shown in Fig. 4, a

spray is being ejected from the nozzle. To change the emitted flow from a spray to a stream requires that the plugs 26 be raised out of the pockets l5 and then shifted to one side of the pockets, thus allowing a free and uninterrupted flow of water through the passages 6, I3 and 1, l4. The plugs are moved to the required position by first moving the top 3 axially of the nozzle to lift the plugs out of the pockets, and then, when th plugs have been raised out of the pockets, the head 3 is rotated to bring the plugs to one side of the pockets to cause them to cocupy the positions shown in Figs. 5 and 10.

When the plugs 26 are located in the pockets I5, said plugs are held from being raised out of th pockets by pressure of the water, by means of the ring 20 which acts as a locking member. The ring is at this time in such a position that the guide pins 23, which extend through cut-out portions of the side wall IQ of the top 3, are confined in the lower groove 22 so that the top 3 is thus held against movement axially of the nozzle. To enable the top 3 to be moved axially. the ring 20 is rotated until one of the pins 23 is brought into contact with a shoulder 34 on the head 2 and located at an end of the grooves 2| and 23, which shoulder defines a vertical groove portion 3| in which the pin 23 is then positioned. This is seen in Fig. 8. At the same time, the diametrically opposite pin 23 is in the position shown in Fig. 6 and is also located in a vertical groove portion 3|a, adjacent to the shoulder 34a. Since both of the pins 23 are now located in vertical grooves, or grooves extending longitudinally of the nozzle, the ring 20 and head 3 may be moved in company longitudinally or axially of the nozzle to the extent permitted by the grooves 34 and 34a to cause the plugs 26 to be raised out of the pockets l5. When such axial movement has been manually effected, the ring and top are rotated slightly, or until the plugs 26 have been shifted to one side of the stream openings I3 and I4, as indicated in Fig. 5. The parts may be held locked in this position by engagement of the pins 23 in the top groove 2|. Rotative movement of the top is restricted, in order to locate the plugs either directly above the pockets l5 or else to a position to one side of the same, by means of the shoulders 32 and 320. on the top which, contacting against a radially projecting stop 33 located in the lower groove 22, restrict the rotative movement of the top 3.

When it is desired to change the flow through the nozzle from a stream to a spray, the procedure is reversed. That is to say, the ring 20 is rotated, and its pins 23, engaging in the notched wall IQ of the top, will rotate the top until the pins 23 reach the vertical grooves 3| and 3|a. The plugs 23 are nowlocated above the pockets l5 and are caused to seat in the same by downward axial thrust of the top. The ring is then turned slightly ejection.

with the structure disclosed, it will be seen that by a slight axial movement of the top, and then a rotative movement imparted tofthe same, the flow from the nozzle will at once be changed from a stream to a spray or vice versa. This can be done without requiring shut off of the flow,

although when high pressure is used, it is desirable to shut off the flow before making the change.

An important fe'ature of the invention also resides in the arrangement by which the spray openings can be readily cleaned out. This is done by moving the top 3 to its limit of. axial movement, or by raising it to lift the'plugs 26 out of the pockets I 5. The streams flowing through the effective to shut oilcommunication between the passages in the body and head by rotative movement of the head relatively to the body, the outer portions of the passages in the head being angularly grooved, a top rotatively mounted on the body and having a restricted axial movement thereon, said top having grooved parts fitting. in the grooved portions of the head and co-operating therewith in forming angular spray passages for the direction of impinging streams.

2. A nozzle having several stream passages extending through it, said passages being angularly grooved adjacent to their outer ends, a top mounted for rotative and axial movement on the nozzle, said top having grooved parts removably fitting into the grooved outer ends of the passages when the top is at one end of its axial movement, said grooved parts co-operating with the grooved ends of the passages in forming pairs of angularly disposed spray passages for the direction of impinging streams, the axial movement of the top in a direction away from the groovedends of the passages causing movement of the grooved parts out of the grooved portions of the stream passages, and the rotative movement of the top in one direction after the grooved parts have been axially moved being sufiicient to permit axial disalignment of the grooved parts with the stream passages.

3. A nozzle having a head provided with several stream passages extending axially through it, the outer ends of said passages being grooved, and a nozzle top rotatively fitted on the head and having grooved elements movable into or out of the grooved outer ends of the passages whereby said passages are charged to spray openings by placement of the grooved elements within the ends of the passages.

4. A nozzle having a head provided with a pair of spaced stream passages extending through it, each of said passages having its outer end portion provided with a plurality of angularly disposed grooves, a nozzle top rotatively mounted on the head, said top having an end provided with plug portions normally fitting within the grooved outer ends of the stream passages whereby the grooves in said plug portions co-operate with the grooves in the stream passages to form spray openings, the spray openings so formedin one of the stream passages'being angularly disposed relatively to those of the second stream passages so that im pinging streams are directed from the groups of spray passages, the top having a limited axialmovement sufilcient to raise the plug portions out of the grooved outer ends of the stream passages, said top also having a limited rotative movement on the head sufficient to disalign the plug portions with the stream passages, whereby the plug portions may be manually shifted out of the stream passages by manual axial movement of said top and then disaligne axially to said stream passages by manual rotative movement of the top.

5, A nozzle having stream passages extending through it, the outer end of each passage having a plurality of grooves, a top member fitted over the end of the nozzle and movable axially thereof, said top member having groovedpart fitting into the grooved end portions of. the nozzle, the grooves in said parts co-operating with the grooves in the end portions of the stream passages to form converging spray openings, the grooved parts on the top member being movable out of the grooved end portions of the passages to bring the grooves in the top member beyond the grooves in the stream passages and enable the grooves to be cleaned by streams passing through the stream passages. 6. A'nozzle having a body portion provided with a plurality of stream passages extending through it, a head mounted for rotative movement on the body portion, said head having a plurality of passages extending through it and adapted to be aligned with those in the body portion by rotative movement of the head, the outer end portions of the stream passages in the head being grooved, a top member rotatively mounted on the head and having a limited axial movement thereon, said top member being grooved to co-operate with the grooved portions of the stream passages and form said passages in spray means, said top member when at the limit of its axial movement in one direction having its grooves located away from the grooved portions of the stream passages, and said top member when at the limit of its rotative movement in one direction having its grooved areas axially, disaligned from those in the head.

7. A nozzle having a body provided with a plurality of str'eam passages extending through it, a head having similar passages and rotatively mounted on the body to permit disalignment of its passages with those in the body, a rotatable top on the body, said top having elements fitting extent to thereby cause said elements to be shifted out of the stream passages.

8. A nozzle having a body provided with a pair of stream passages extending through it, a head having a similar pair of passages normally disposed in alignment with those in the body, the

outer ends of the stream passages in the head terminating in. conical pockets, the walls of said pockets being angularly grooved, a top member rotatively mounted on the head, said top member having substantially conical plug portions normally fitted into the pockets, the surfaces of said plug portions being grooved, with said grooves registering with those in the pockets to form spray openings located at the ends of'the stream passages, the top member being capable thereby move the plug portions to one side of the pockets and out of the way of streams flowing therefrom, and co-operating means on the top member and on the body for limiting the rotative and raising and lowering movement of the top member relatively to the body.

9. A nozzle having a tubular body provided with a central passage terminating in a pair of openings, a head secured to said body and having a pair of passages normally in alignment with the openings in the body, said passages having their outer ends terminating in pockets, a rotatable top on the body, said top having conical grooved plugs fitting into said pockets, said top having axial movement on the body to a suflioient extent to enable the plugs to be raised out of the pockets, the top also having rotative movement on the body to a suificient extent to enable the plugs, when the top is raised, to be moved to one side of the pockets.

10. A nozzle having a body formed with a central passage, said passage being divided at one end of the body into a pair of openings, a compressible washer carried by the body at said end and disposed around said openings, a head threaded on the body and having a pair of passages adapted for alignment 0r disalignment with the openings in the body by rotative threading or unthreading movement of the head in the body, means for limiting such threading or unthreading movement of the headrelative to the body, a top fitted over the head and provided with elements fitting into the passages in the head to form said passages into spray openings, said top being movable axially on the body to a sufficient extent to thereby raise said elements out of the passages in the head, said top being also rotative on the head to a sufficient extent to bring said elements out of alignment with the passages and in raised position relative thereto;

11. A nozzle having a body provided with a plurality of passages extending through it, a head having passages aligning with those in the body,

. grooves and allowing manual axial and rotative movement of the top relative to the body to an extent sufiicient to permit the grooved elements to be manually raised out of the passages by such axial movement and to an extent sumcient to. permit disalignment of the grooved elements with the passages by such rotative movement.

12. In a nozzle, 2. body having a pluralit of passages extending through it, a head rotative on the body and also having passages extending through it, the rotative movement of the head being sufficient to permit disalignment of its passages with those in the body, a top rotative on the head and having spray elements capable of being brought into alignment or disalignment with the passages in the head, the top being rotatable to an extent suflicient to permit such alignment or disalignment said top being axially movable relative to the body to an extent sufllcient to space the spray elements axially from the passages in the head.

JOHN O. LEWIS.

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