US580109A - John a - Google Patents

Description

(No Model J. A. HOLMBERG & M. J. GOSGRIPP.

INJEGTI-NG HOSE NpzzLE.

No. 580,109. Patented Apr. 6, 1897.

*nf/zzn e s s es x Invenam' ivy/67mm UNITED STATES PATENT OFFICE.

JOHN A. HOLMBERG AND MICHAEL J. COSGRIFF, OF KANSAS CITY, MISSOURI; SAID COSGRIFF ASSIGNOR TO SAID HOLMBERG.

INJECTING HOSE-NOZZLE.

SPECIFICATION forming part of Letters Patent No. 580,109, dated April 6, 1897.

Application led August 31, 1895. Serial No. 561,166. (No model.)

To @ZZ whom, t may concern.-

Be it known that we, JOHN A. HOLMBERG. and MICHAEL J. CosGEIFF, of Kansas City, Jackson county, Missouri, have invented certain new and useful Improvements in Injecting Hose-Nozzles, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

Our invention relates to injecting hosenozzles; and it consists in certain novel and peculiar features of construction and arrangement, hereinafter to be particularly described and claimed.

The object of the invention is to produce a hose-nozzle whereby the power of the pumping-engine can be utilized by injector or suction action to increase in a large degree the pressure of water leaving the water-main via the usual water or fire plugs.

In order that the invention may be fully understood, we will proceed to describe it With reference to the accompanying drawings, in which- Figure l represents, partly in section and partly in elevation, ahose-nozzle embodying our invention. Fig. 2 represents a View of the receiving end of the same. Fig. 3 represents a cross-section on the line 3 3 of Fig. l. Fig. 4. represents a cross-section on the line 4 4 of Fig. l. Fig. represents one of the sub or concentrating nozzles in elevation.

Referring to the drawings, l designates the tubular nozzle proper, which preferably gradually diminishes diametrically from its receiving or rear end to its delivery or front end. At its rear or receiving end it is internally iiared and externally is screw-threaded, as shown at 2.

3 designates the concentrating-chamber, which, in section, is approximately V-shaped, tapering at its front end to circular form, where its internal threads 4. are engaged by the external threads of the tubular nozzle proper. In cross-section said concentratingchamber is approximately elliptical in form, as shown most clearly in Fig. 4 At its rear or receiving end it is provided with tubular diverging extensions that form passages 5,which each communicate with said chamber 3, and said tubular extensions are externally screwthreaded, as shown at 6. Midway between said extensions and in direct longitudinal alinement with the nozzle l .said chamber is provided with the threaded opening 7. Arranged axially within the front end of the chamber 3 and projecting forwardly into the rear or receiving end of the tube l is a sub or concentrating nozzle 8. Arranged to the rear of said nozzle and proj ectinginto the rear end of the same is a similar or concentrating nozzle 9. Said nozzles are of such diameter that an annular space is formed between them and the chamber-Wall, and they are supported rigidly in such position by means of the cross-bars l0, which radiate from and are cast integrally with said sub or concentrating nozzle and also with the concentrating-chamber wall. Said nozzles are frustumshaped and taper forwardly, the rear end of the front one S overlapping the front end ot' the rear one 9, and the arrangement is such than an annular space is formed between such overlapping portions that the water, as hereinafter described, may have free access to the nozzle 8, both internally and externally of the nozzle 9. In order to afford as little resistance to the free and uninterrupted passage of the water as possible, the rear or receiving ends of said nozzles are beveled to points, as shown at 8 and 9, respectively. For the same reason the supporting-arms l0 are V-shaped in cross-seetion,with their apices presented rearwardly or toward the watersupply.

ll designates a fourth nozzle. This nozzle is externally threaded, as shown at l2, and engages the internal thread 7. It tapers from such point to its front end, which is diametrically smaller than and projects concentrically within the rear end of the nozzle 9.

The nozzle ll at its outer end is also externally threaded, as shown at 13, and is coupled to a hose-pipe 14, leading to a pumping-engine or other apparatus (not shown) adapted to Work at ahigh pressure. Otherhose-sections l5 are coupled to the extensions 5 of the chamber 3 and at their opposite ends are connected to Water or fire plugs in the customary manner. The pressure ot' water through said plugs is of course greatly inferior to the pressure generated by the engine, that the stream IOO of water passing into the nozzle by way of the hose-section 14 and its nozzle 11 may exhaust all of the air from said chamber, and thereby tend to siphon or dravsT the water by suction action through the hose-sections l5 from the plugs at a much more rapid rate than would flow from the pressure in the water-main, thus obtaining a large volume or stream of Water, which is discharged from the nozzle proper, 1, to a great distance. In practice the pressure through said pipes with this apparatus Vis 4so augmented that the Water from the mains at a comparatively low pressure can be thrown upon the highest buildin gs, provided the pressure through the section 14 is suiiicient. By arranging the sub-nozzles as shown the hosesection Mis provided with what in all respects is an extended nozzle, which confines the stream passing through said section to its proper course until it enters the nozzle proper, and at the same time permits said stream to be augmented in volume without interrupting Yits ow by the streams entering the chamber at opposite sides by way of the hose-sections 15 'and entering the extension-nozzles 9 and 8, as Will be readily understood. The stream is further augmented by the water Whichrpasses externally of said nozzle eXtensions 8 and 9 and enters directly the nozzle proper, 1.

From the foregoing it will be apparent that a nozzle of this kind will be found very useful and will possess great advantages overA others in view of the fact that Water from the mains can be discharged at a much greater pressure than that at which it is received, that tires may be fought with greater success and at less cost, comparatively, than where an engine must be connected to each line of hose and a small stream projected at a-high pressure. In other words, a tire-department provided with a number of the. nozzles may use fewer engines than would otherwise be necessary.

Thile we have shown only a pair of hosesections 15 communicating with the chamber 3, it is to be understood that the number of said pipes may be varied. From the description it is apparent that We have produced a hose-nozzle which is comparatively inexpensive and simple, strong, and durable of construction.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is-

A hosen0zzle, con sistin g of the tubular nozzle 1, the tapering chamber 3, communicating at its contracted end with said nozzle, and provided with a plural number of inlet-pas sages at its opposite end, one being arranged in axial alinement withthe nozzle 1, a hosepipe communicating Awith said last-named opening, and adapted to discharge Water un@ der great pressure through said nozzle, hosepipes coupledv to the other inlet-openings of said chamber, and one or more conical subnozzles arranged in longitudinal alinement

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