US1452264A

US1452264A - Adjustable spray nozzle

Info

Publication number: US1452264A
Application number: US451023A
Authority: US
Inventors: Harry D Binks
Original assignee: Individual
Current assignee: Individual
Priority date: 1921-03-09
Filing date: 1921-03-09
Publication date: 1923-04-17
Anticipated expiration: 1940-04-17

Description

H. D. BINKS ADJUSTABLE SPRAY NOZZLE:

Apr. 17, `1923. 1,452,264

Filed March 9, 1921 ff @W WM Patented Apr. 17, 1923.

UNITED STATES 11,452,264 .PATENT OFFICE.

HARRY D. BINKS, OF RIVER FOREST, ILLINOIS.

ADJUSTABLE SPRAY Nozznts.

Application led March 9, 1521. Serial No. 451,028.

n spraying liquids'and in its general objects includestheproviding of simple means for adjusting the quantity offthespray'and for indicating the adjustment.

Generally speaking, my invention aims to provide a spraying appliance which will af- :ford desirable adjustments without requiring it to be taken apart and without leaving any uncertainty as to the spraying capacity for which the nozzle is adjusted. For this purpose my invention aims to provide a spraying' appliance which can readily be mampulated for adjusting the same lwithout taking apart any portion of it, which will permit such adjustment to be made without varying the pressure at which Huid is supplied to the nozzle, land which will readily indicate the rate of spraying for which the nozzle is adjusted.v Furthermore, my invention aims to provide an adjustable appliance of thiskind employing relatively few and simple parts, to provide simple means for maintaining the desired tight interitting of the operative parts; also to provide a construction which can readily be adapted to spraying appliances regardless of the desired distances between the mouth of each appliance and the point from which the adjustment can conveniently be made and at which the corresponding adjustment is to be indicated. Still further and more detailed objects will appear` from the accompanying drawings, in which- Fig. 1 is a central and longitudinal section through a spray nozzle embodying my vinvention and. designed for spraying oil.

Fig. 2 isv a similar section through a shorter form and one including a dilerent mounting for the portion of the nozzle in which the spray is produced. j Fig. 3 1s an end elevation of the nozzle of Fig. 1, taken fromvthe right hand-end of the latter ligure.

In the embodiment of the drawings, I am showing the volume-adjusting and indicating features of my invention as applied to a spray nozzle or atomizing nozzle of the general type in which a spirally advancingmotion is imparted to the liquid before`the same reaches the contracted outlet of the nozzle, and in which the spirally advancing liquid is broken up into a spray while itis being forced through this contracted outlet. For this purpose,I4`ig. 1 shows a construction including a tubular nozzle body 1 recessed at its forward end to afford an annular recess for receiving a iange 3 on the forward end of a cup 4, the bore of which cup forms the whirling chamber in which the liquid is spirally advanced before it is forced out through the outlet 5 of the nozzle. This outlet 5 is quite small in bore compared with the diameter of the whirling chamber 6, and this outlet desirably is in a head 7 threaded upon the forward end of the nozzle body 1 and arranged for clamping the y flange i 3 against the mouth end of the nozzle body. The liquid which is to be sprayed is supplied under pressure to the bore of this body 1 ithrougha supply pipe 8, and is admitted to the chamber 6 through a plurality of inlets 9 in the side wall of the said cup shaped VAamember, the said inlets being here shown as comprising a pair diametrically opposite each other and substantially tangential of the chamber 6 as shown in Fig. 4.

With the parts thus arranged and with the outer end of the inlets 9 openin freely into the interior of the nozzle bo y, the

liquid supplied through the 'pipe 8 will irst be spirally advanced within the chamber 6 and then broken into a spray while issuing through the outlet 5, and the rate at which the spray issues will be predetermined by the natureof the liquid the size of the inlets 9 and the pressure under which the liquid is supplied. To change this rate without substituting another cup-sha ed member e having a different size of in ets and without varying` the pressure at which the liquid is sup lie a num er of sets of inlets of differentl sizes and provide a control member arranged for` admitting the liquid through only one set of the inlets at a time. n

In the present embodiment, Fig. t shows I provide this member 4 with these three sets of inlets selectively, I provide a control member having a cup-.shaped end 12 sleeved upon. and snugly houslng the exterior of the cup shaped member 4 and having a single pair of ports 13 adapted to aline interchangeably with the inlet ends of the three sets of inlets. This control cup 12 is fast upon a stem 14 which extends through the rear end of the nozzle body and which can be rotated by means of a knob 15 pinned to its outer end. By using this knob for manually rotating the control member, I can bring the Aports 13 into alinement with the entrance ends of any one of the plurality of sets of inlets, namely' the inlets 9, 10 or 11, thereby varying the rate at which liquid is admitted to the whirling chamber and correspondingly varying the rate at which the spray is emitted from the nozzle.- Then I also provide means associated with the control member for indicating the position to which the latter is adjusted, and desirably for indicating this in terms of the quantity of liquid which will be emitted in a form of spray when the liquid is supplied at a given ressure. For example, I may fasten an in icating pin 16 to the stem 14 of the control member between thel knob 15 and the rear of the nozzle body and may provide markings on the rear end of the appliance alining respectively' with the indicator 16 according as the control member has its ports opposite one or another of the said sets of inlets. For example, Fig. 3 shows a rear view of an oil burning spray nozzle having inlets designed respectively for furnishing one, three and eight gallons of oil spray, and shows at a glance that the control member is in the position in which the nozzle will deliver one gallon of spray in a given time at the predetermined pressure.

To keep the supply of fluid from leaking through to the other inlets, I desirably form the exterior of the cup shaped member 4 and the adjacent portion 12 of the control member so that these will snugly fit one another, as by providing both of these with similarly tapered and interfitting frusto-conical surfaces. I also desirably provide means for pressing these ortions against each other to maintain a tight fit. for which purpose I am here showing a compression spring 17 interposed between the rear end of the nozzle body 1 and a pin 18 which projects laterally from the stem 14. Then I am also showing the rear end of the nozzle body as provided with a stuffing box through whlch the stem 14 extends, this box includsure of liquid the volume of the delivered spray per minute will depend on the size of the inlets with which the ports in the control members are alined, and that after these respective volumes have been ascertained and theindicating portion on the rear end of the appliance has been correspondingly marked, even an inexperienced helper can readily manipulate the appliance without any uncertainty asl to the rate at which the spray is delivered. Moreover, the desired adjustment can instantly be made Without the use of any tools, thereby avoiding all loss of time. For example, in using oil as. the fuel for heating kilns it may' be necessary at first to produce a relatively low tempera- -ture so as to evaporate the moisture in the clay without cracking the molded pieces, for which purpose the one gallon rate indicated by the adjustment of Fig. 3 may be ample with a given size and arrangement of spray nozzles and a given pressure at which the oil (or rather the mixture of oil and air) are supplied. When the moisture has thus been driven out, the knob 20 can instantly be turned` so as to bring the pointer 16 oppo- 95 site the mark 3, thereby adjusting the nozzle to the correspondingly higher rate of spray and producing a correspondingly higher intermediate temperature, after which the knob can be turned further on to the 8 to spray 100 the oil at the rate required for the maximum heating of the kiln.

However, while I have heretofore illustrated and described my invention as employed in connection with an oil spraying nozzle used for the heating of a kiln, I do not wish to be limited to this particular embodiment or use of the same, as my invention could obviously be used for many purposes Without departing from its spirit.

So also, while I have shown a construction includin a long tubular body 1 ad-apted to extend or a considerable distance into a kiln or furnace and have shown the whirling or spray producing chamber as formed withm a cup-shaped member having a flange clamped between the nozzle body and the forward head of the nozzle, I do not wish tofbe limited to these or other details of the construction and arrangement, it being obvious that the same might be varied in many respects without departing from t-he spirit of my invention or from the appended claims. F or example, Fig. 2shows another embodiment including a relatively short nozzle body 25 having a forward cap 23 threaded into the bore of the nozzle body and having the flange 21 of the cup-shaped member threaded into the cap 23. In this case, the cup-shaped member is desirably lso providedwith a stem 22 terminatingin a square end 24 which extends rearwardly beyond the open end of-the ap 23, so as to permit this member to be screwed into position, or unscrewed if desired.

I claim as my invention:

1. In a spray nozzle, a casing enlarged at one end and having an outlet, a cup-like member iixedly secured within the vcasing withfits open end facing and communicating with the outlet and having its periphery spaced from the casing interior, said cup-like member havinga plurality of pairs of lateral ports extending from its interior through its periphery, and a rotatable stem in the easing having a cup-shaped endrotutably mounted over the periphery olf' the cup-shaped member and having a single pair of ports for selective register with the respective ports of a pairof cup-shaped member.`

2. In a spray nozzle, a casing having an outlet, a hollow member in the casing having its open end communicating with the outlet and having a series of lateral ports ports of the extending from its interior through its periphery, and a rotatable stem in the easlng having a part thereon rotatably mounted over the periphery of the Jh'ollowqmember and having a port for selective register with the ports of said hollow member.

3. In a spray nozzle, a casing, a hea-d se-A cured to thecasingand having an outlet and an interior threaded part, va cup-shaped member having a flange threaded into engagement with the threaded part of the head and having a stem formed to enable screwing of the member into position in the casing, said member having -a series of ports extending from its interior through lts periphery, and a rotatable stem in the casing having a cup-shapedpart rotatably engaged Y over theperiphery o the cup-shaped member and over the stem of the 'latter and having a port forl selective register with one of the ports of the cup-shaped member.

Signed at Chicago, Illinois, March 7th, 1921.

HARRY D. BINKs;