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Publication numberUS2519737 A
Publication typeGrant
Publication dateAug 22, 1950
Filing dateJan 30, 1948
Priority dateJan 30, 1948
Publication numberUS 2519737 A, US 2519737A, US-A-2519737, US2519737 A, US2519737A
InventorsBrassington Charles B, Stibitz Bert M
Original AssigneeBrassington Charles B, Stibitz Bert M
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Water gun
US 2519737 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

Aug. 22, 1950 C. B. BRASSINGTON ET AL WATER GUN Filed Jan. 30, 1948 1M 'ENTORS CHA RLES a. BRASS 1 NGTON 5 ERT/ZST/ B TZ 9 .4 TTORNEY and in discussing its use ninety tons in a pile a, long Patented Aug. 22, I, 1950 WATER GUN Charles B. Brassington and Bert Stibitz, Mount, Carmel, Pa.

Application January 30, 1%8, ,Serial No. 5,376

. 3 Claims. (01. 299.450)

i The present invention relates to spraying an paratus and more particularly to a water gun for use in wetting coal or'other loose materialto allaymdustand improve working conditions in confined'or other areas. i v r While the gun of the present invention was designed primarily to solve. the problemsincident to the production and handling of coal, his to be understood it may have a wide, range ,of use with coal, the scope of the invention is not to be limited. The problems referred to may be stated as follows:

Ascoal is produced from the seam it is shot downwith explosives and falls away from the face in piles. The amount depends upon the width of the face and the height of the seam. Thre is dust in the air and ,in-the pile of coal after this operation. There. are twoproblems. One is a spray which will settle and drive out the dust and fumes inwthegair after the coal has been blown down. The second is to wet the pile of coal so that the dust and the oxides of nitrogen are eliminated when the coal is loaded into mine cars. 7

In nozzles as heretofore used and. particularly those of the fog type, the water capacity is relatively limited and of a, short effective range. \When the largeamounts of coal are blown down it requires a; considerable amountof time to wet the coal with a fog nozzle because-the capacity is approximately five gallons of water per minute and it requires three gallons of \vatcrto'wet a ton of coal. Therefore, if there are; fifty to time is required for wetting. Thus, the fog nozzle or any other nonale-s oi whichapplicants have knowledge. are not effective for this operation. "some of the objects of the present invention are to provide an improved water gun;to'pro.- vide a water gun of rugged construction equipped with a novelnozzle for creatingv an effective spray for reducing dust and iumes; provide spray gun wherein a nozzle functions to pass about twenty gallons of water per minute for'efiiciently wetting a pile of coal; to provide a spray nozzle unlike conventional nozzles in that it gives a wider range for effective coverage and at such relatively low pressures that the water can be thrown over a thirty foot area; to provide a spray nozzle in association with a nozzle finger tip adjustment; to provide a spray nozzle so shaped and arranged that the cushioning effect of the projected water on the valve seat prevents wear; and to provide other improvements as will hereinafter appear.

1 In the accompanying drawings, Fig. 1 represents a sectional elevation of a spray gun embodying one form of the present inventiom'l ig. 2 represents a detail in section of the nozzle end of the gun, showing thevalve in one open 'posie tion, the section being on an enlarged scale; Fig; 3 represents an end elevation of the gun viewed irom the nozzle end Fig. 4 represents'a side el-e vation of the valve stem; Fig. 5 represents a side elevation of the control member} Fig; 6 represents an end elevation of the control member;

- and Fig. '7 represents a rear end elevation of the valve stem.

Referring to the drawings, one form of the present invention comprises an elongated tubular barrel or body it having an angularly disposed tubular neck H, preferably threaded at its free end for coupling the discharge end of a hose (not shown) by which a medium, sucha s water, is'supplied under pressure by way of the conduit F2 to the bore I3 of the barrel Ill.

For discharging the incoming water, the bore end of the barrel H] towards which the angular conduit 12 is directed, is enlarged at a predetermined location to form a circumferential out wardly diverging throat M, which terminates in a cylindrical passage [5 coaxial with the bore '53. The. outer circumferential edge it of the passage {5 forms a seat for a valve disc H in the form or a truncated-segment of a sphere which serves tov open and close the passage l5 for positive regulated discharge of "water by axial movement of the attached valve stem l8. This regulation is supplemented by a novel discharge nozzle termed by outwardly flaring the discharge end of the barrel Hi to form an annular head 28 having a. wall thickness greater than the thickness of the wall of the barrel lil. Internally, the head Zll is. cup shaped, thereby providing an arcuate surface 2|; complemental to and encircling the convex surface of the valve disc I1, and so di mensioned as to provide a slight clearance between theparts as the valve disc ll moves away from its closed seating position upon the edge ISMPr-eferablithe respective radii'of the convex and the concave surfaces are described about the same center. Thus, the discharge end of the concave nozzle has a defined convergence which functions to cause a portion of the discharged stream to be directed towards the axis of the discharge. As a, result, the working stream comprises a core of fog encircled by a more or less solid cone or fan of water particles. By varying the position of the valve disc I! within the three-part shaped nozzle, the diameter of discharge will take place.

the cone can be altered to meet the particular condition of use; however, the distinct advantage of the nozzle configuration is that it is possible to obtain an effective spray coverage up to fifty feet and at comparatively low water pressures. Furthermore, the radial design of the valve disc and the valve body discharge end protects the valve seat by a cushion of water which prevents wear.

In order to control the valve adjustment, the valve stem 18 is threaded for an appreciable portion of its length (preferably about one half) to traverse a threaded portion 19 of the bore 13, and project exteriorly of the bore I3 by way of a stufiing box or packing gland, 22, where it terminates in a reduced square section 23, followed by a further reduced threaded tip 24. Torque is transmitted to the valve stem I8 by means of a cup sleeve 25 of an internal diameter to externally telescope with the outer cylindrical face of the barrel I0, and having its closedend provided with a square hole 26 coaxial with the stem l8. The hole 26 is dimensioned to fit snugly about the square section 23 while allowing the threaded tip 24 to project in order to receive a locking nut 21. By this construction, a finger tip control for regulation of the valve is obtained, and for ease of operation the sleeve surface is; preferably knurled. Also, this sensitive finger tip control prevents damage to the valve stem due to rough use.

In operation, the neck II is connected by a hose to a suitable source of water under pressure and with the valve disc I7 in closed position no the control sleeve 25 is turned to feed the stem l8 in the direction to lift the valve 17 from the seat I 6 and start the stream discharge. The shape and character of the emerging stream can then be adjusted by further fingertip manipulation of the sleeve 25 to thereby alter the relative positions of the convex and concave surfaces and their relation to the two-part throat.

Thus it will be evident that the normal open position of the valve l1 depends upon the water pressure and the type of spray pattern desired. For example, with a fog spray the valve 11 would be practically closed, while if a narrower pattern or greater water capacity is required the valve At the place of use discharge head on said casing internally contoured to provide successively an expansion throat, a cylindrical passage, and a cup-shaped discharge, said parts forming a unitary nozzle for projecting fog and water, said water being a solid cone encircling said fog, means to introduce water under pressure to the interior of said casing, a valve movably mounted in said discharge, said valve being complementally contoured to seat within said discharge as a closure, and means for actuating said valve, whereby in open position thereof the fiow through said dis- 1 charge can be regulated.

1 a stem on said valve threaded within said casing and projecting exteriorly thereof, and means on the projecting end of said stem to turn said stem to open and close said valve, whereby in open position the flow through said discharge can be regulated.

I! would be farther away from the seat. Attenfl tion is further directed to the novel cylindrical passage [5 which functions to form a cushion of water serving as a means to protect the circumferential seat I 6. Also, it causes a more streamlined flow and ordinarily created in prior type nozzles by an abrupt change in direction. Furthermore, the discharge entering the diverging throat is agitated so that the valve is self-cleaning. Thus, pieces of coal, rust, timber chips, and other particles are prevented from clogging the outlet and the use of strainers for this purpose is unnecessary.

Having thus described our invention, we claim:

1. A water gun comprising a tubular casing, a

decreases the friction 3. In a water gun, the combination of a discharge nozzle formed by a conical outwardly diverging inlet, a concave outlet, and a. cylindrical passage intermediate said inlet and outlet,

. and a valve in the form of a spherical segment REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date a 394,920 Hallowell Dec. 18, 1888 726,395 Bedworth Apr. 28, 1903 1,110,516 Terry Sept. 15, 1914 1,143,293 Luehrs June 15, 1915 1,279,400 Miner Sept. 17, 1918 1,737,155 Hewitt Nov. 26, 1929 2,089,304 Stein Aug. 10, 1937 2,120,620 Mowery June 14, 1938 2,127,188 Schellin et al. Aug. 16, 1938 2,156,800 Bucknell et al May 2, 1939 2,207,758 Rehse July 16, 1940 2,311,884 Steinicke' Feb. 23, 1943 2,417,655 Lindsay Mar. 18, 1947 FOREIGN PATENTS Number Country Date 173,327 Switzerland 1 Feb. 16, 1935

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Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2989250 *Aug 19, 1959Jun 20, 1961Simon Joseph EOne-hand operated, quick acting, garden hose nozzle
US2991942 *Aug 13, 1959Jul 11, 1961Lafayette Brass Mfg Company InSpray nozzle
US3093318 *Feb 28, 1961Jun 11, 1963Internat Patent Res CorpAdjustable nozzle
US4984717 *Dec 6, 1988Jan 15, 1991Burton John WRefillable pressurized beverage container
US5852835 *Dec 14, 1995Dec 29, 1998Kohler Co.Plumbing nozzle
U.S. Classification239/456
International ClassificationB05B1/30
Cooperative ClassificationB05B1/3073
European ClassificationB05B1/30D2