US902309A - Nozzle. - Google Patents

Description

J. F. MAOWILLIAM.

NOZZLE.-

APPLICATION FILED DBO. 2,1903.

902,309, Patented Oct. 27, 1908.

I9/ /7/5 #liar/1e 5, I MW fw JAMES F. MACWILLIAM, oF HUBBARDSTON, MASSACHUSETTS..

NOZZL'E.

Specification of Letters Patent.

Patented occ. "27, 1'90'8.

. Application filed December 2, 1903. "Serial No. 188,471.

To all 'whom it may concern: i

Be it known that I, JAMES F. MACWIL- LIAM, a-citizen of the United States, residing at Hubbardston, in the county of Worcester and State of Massachusetts, have invented a new and useful Nozzle, of which the following is a specification.

This invention relates to that class of nozzles which are employed on hose pi es, or other fixtures, and especially to that c ass of nozzles which are employed in connection with lire extinguishing apparatus.

The Lspecial object of this invention is to provide a strong, simple, and ineX ensive nozzle which wil insure a positive s utting off of the stream, or which can be set either to be wide open or to produce spraying effects, and in whichV the parts 'are not liable to become stuck or wedged When the nozzle is allowed to stand for considerable periods of time. v

To these ends, this invention consists of the nozzle and of the combinations oli-parts therein as hereinafter described and more particularly pointed out in the claims at the end of this Speciiication.

lengths of time.

In the accompanying drawing, Figure 1 is a side view of a nozzle constructed according to this invention partly broken away to show the parts in closed position 3 Fig. 2 is a longitudinal sectional view of the same showing the parts in open position, and Fig. 3 is a transverse sectional'view taken on .the line 3 3 of Fig. 2.

In the use of nozzles in connection with hose-pipes or other apparatus, and particularly in the use of nozzles in connection with lire extinguishing apparatus, it is essential to provide a construction havin simple and directly operative parts, so t at the nozzle may be used efficiently even when the same has not been operated for considerable For this reason in nozzles of this class it is desirable that the use of all leather or rubber packings inside the nozzle be dispensedwith.

In a nozzle constructed according 'to my invention I have provided a simple and direct cut ofi action without the use of leather or rubber packings, and I have also designed the parts of my nozzle so that the same may.

. be made `'at comparatively little cost.

Referring to the accompanying drawing and in detail, a nozzle constructedaccording to this invention as herein illustrated comprises a body portion 10. The body portion 10 is provided with internal threads near its end, and a hose-pipe H may be connected to the nozzle through an ordinary coupling C which is threaded into the end of the body portion 10 and bears against a packingwasher D in the ordinary manner. Extending transversely across the chamberinside' the body portion 10 is a bridge-piecev 11, and cast into or otherwise secured in the bridgepiece 11 is a soft metal bearing. piece 12, which 4forms a valve seat. The bearing piece 12 is provided with an annular groove or recess 120 and a central projectlon or abutment 121. Coperating with the bridge piece 11 is an outlet tube 13 which is threaded into the end. ofthe body portion 10, 'and is provided with a tapering or conical end 16, which may be screwed down into the annular groove in the soft metal bearing-piece 12 when it is desired to throttle the stream, and which may be seated tightly against the soft metal Ipiece 12 when it is desired to closethe nozzle as shown in Fig. 1. The ordinary gland 14 is threaded on the body portion 10, and serves to hold the packing 15 in place. 0n the end of the outlet tube 13, I provide an operating handle 17, and a nozzle tip 19.

As shown most clearly in Fig. 3, the operating handle or hand-wheel 17 is threaded on the outlet tube 13, while the nozzle tip 19 is also, threaded thereon, being provided with a wrench section 20 for this purpose. By means of this arrangement of operating handle 17 and nozzle tip 19 it will be seen that the nozzle tip 19 serves as a lock-nut for holding the hand-wheel 17 in place.

n the /use of a nozzle as thus constructed it Will be seen that when the valve is closed, air will be excluded from the inside of the valve-casing, and that the water or other fluid from the ipe H will fill the entire nozzle body and willp be ready toenter the outlet tube the instant the nozzle is opened. In addition to this, the pressure of water inside the body portion of the nozzle will serve to keep the packing 15 constantly wet and pressed out against the cap 111, so that this packing will never dry up and allow leakage when the nozzle is opened. Astill further advantage in the use of this construction is due to the fact that when the outlet tube is unscrewed, the end of the outlet tube at once begins to leave the valve-seat, so that even if there is grit ordirt Within the nozzle, the valve-seat will not be scratched or grooved.

A nozzle constructed according to this invention is alsoespecially adapted for use on lire extinguishin apparatus, because, even When the nozzle as not .been used for a long period of time, the relatively small area of the valve-seat and the relatively lar e size of the hand-wheel will ive sufficient everage so that corrosion Wil not be liable to stick the arts togetherto prevent. the nozzle readeing opened.

Changes may be made in the outline and pro ortions of nozzles constructed accordingy i to t 's invention without departing from the scope thereof as ex ressed in the claims. I

do not Wish, there ore, to belimited vto the s ecial construction I have herein shown and escribed, but l What I do claim and desire to secure by Letters Patent of the United States is:-

. tion so that its end may be seated against the bridge to close the nozzle, a hand-wheel threaded on' to the outlet tube, and a nozzle tip also threaded on to the outlet tube and and- , tip on the outlet tube.

y.my hand, in t forming .a lock-nut forholding the handywheel in place.

annular groove With a central projection, an

outlet tube threaded into the opposite end of the body portion and having a tapering end which may be seated in thegroove of the i soft metal piece, a hand-wheel threaded on to the out et tube, and a nozzle tip also threadedon to the outlet tube, and serving a a lock-nut for .fastening the hand-Wheel in p ace.

4. As an article of manufacture, a nozzle comprising abody portion having a chamber therein provided With a bridge spaced from both ends of the chamber, said body portion having means at one end to receive a coup'- ling to connect the nozzle with a hose, a soft metal piece mounted on the bridge and having an annular groove, an outlet tube adjustably mounted in the opposite end of the body portion and having a tapering end adapted to be seated in the. groove of the softmetal piece-to close the nozzle, anda nozzle In testimon Whereof'I have hereunto set e presence of two subscribing JAMES F, MAGWILLIAM.

Witnesses.

Witnesses:

Louis W. SOUTHGATE,

ALBERT E. FAY.

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