US2149930A - Nozzle for spraying devices - Google Patents

Description

March 7, l1939.

Jv. c. PLAsTARAs n 2,149,930

NOZZLE FOR SRAYING DEVICES original Filed Aug. 25, 1934 Patented Mar. 7, 1939 UNlTED STATES PATENT OFFICE NOZZLE FOR SPRAYING DEVICES James C. Plastaras, Laurelton, N. Y., assigner to Wil-X-Mfg Corporation, a corporation of New York 1 Claim.

This invention relates to nozzles for spraying liquid, and more particularly to those of the type wherein the shape or configuration of the stream of liquid expelled can be changed from one form to another. This application is a division of my copending application, Serial No. 741,028, led August 23, 1934.

According to the present improvements, the nozzle which, incidentally can be associated with u any suitable device from which it is desired to expel liquid, is formed with a body portion provided with a passageway for the liquid, the discharge end of which is circular in shape. Adjacent the discharge end, there are located a pair ,y of transversely movable elements adjustable from an inactive position wherein the stream of liquid passes freely between them, thus permitting it to partake of the form of the circular discharge opening, to an active position wherein they pre- 20 sent an elongated slot which produces a stream flat or elongate in cross section. The transversely movable elements and the body portion of the nozzle are encased by a cap having an opening through which the liquid passes and which is rotatable through a limited distance in one direction to adjust the movable elements from inactive to active position to produce the flat stream, and in the opposite direction to adjust the members from active to inactive position wherein the 30 round stream results.

Referring to the drawing:

Fig. 1 is a side elevation of a nozzle equipped with the present improvements, and being partly broken away to show some of the operating mech- 35 anism;

Fig. 2 is a longitudinal section on line 2-2 of Fig. 1;

Fig. 3 is a longitudinal section on line 3-3 of Fig. 2; and

40 Figz. 4 is a horizontal section on line 4 4 of Fig. v

As shown in the drawing, the nozzle includes generally a body portion A threaded internally at its entrance end for attachment to a hose or pipe 45 B through which the liquid to be discharged passes to the nozzle, and a cup-shaped cap member C movably mounted on the body portion A and comprising inner and outer elements C1 and C2 held iixedly together by a screw C3 passing U through the outer element and threaded into the wall of the inner element. The body portion of the nozzle A has a large inlet opening A1 tapering into a smaller circular discharge opening A2 to increase the discharge pressure, and in alinement 55 therewith, the cup-shaped outer member C has a large aring opening C4 through which the liquid is discharged. The inner element C2 of the cap member is provided with a mouth piece C5 extending inwardly toward the body portion and formed within the cap member with laterally 5 flaring walls C6 for a purpose subsequently to be described.

The body portion A at its base is formed with a large transverse slot A3 presenting a pair of opposed shoulders A"z which provide support for l0 a pair of T-shaped elements D adjustable to a limited extent transversely of the body portion, from an inactive position as determined by the banking of said elements at their outer ends against the inner wall of the cap member C, to an active position as determined by the banking of said elements at their inner ends one against the other. When the elements D are in active position (see Figs. 2 and 4), they present an elongated slot D1 formed by a pair of recesses 20 at their inner ends. This slot, in width, is considerably smaller than the diameter of the circular discharge opening A2 in the body portion of the nozzle. Furthermore, it tapers to a narrow throat and then flares outwardly in order that a proper discharge will be effected.

When the elements D are in their outer or inactive position of adjustment, they will stand clear of the circular opening A2 in the body portion A, so that the liquid will be discharged therethrough in a round stream without interference. On the other hand, when the elements D are adjusted inwardly to active position wherein they banky one against the other, the narrow elongated slot D1 previously alluded to, will elect the discharge 35 of the liquid in a flat stream.

In order to effect the adjustment of the T- shaped elements D from inactive to active position and vice versa, said elements are provided in their bottom edges with oppositely inclined 40 slots D2 into which there projects the laterally flaring wall C6 of the throat element C5, the latter being arranged for slight endwise movement toward and away from the body portion of the nozzle through a similar movement of the cap member C later to be described. According to this arrangement, as the cap member moves inwardly along the body portion of the nozzle, the throat element C5 at its inner face will press against the inner walls of the inclined slots D2, thus moving the elements D inwardly until they are arrested by banking one against the other. On the other hand, when the cap member C is moved outwardly along the body portion of the nozzle, the throat element C5 at its outer face will 55 press against the outer walls of the inclined slots D2, thus moving the elements D outwardly until they are arrested by banking against the inner wall of said cap member. 'Ihese adjustments of the elements D will result in the changes in configuration of the liquid stream, previously described.

The longitudinal movement of the cap member C with respect to the body portion A of the nozzle is effected by a headed screw E tapped into .the body portion A and engaging at its outer end in a slot C7 formed in the inner element C2 of the cap member (see Fig l). The form of the slot C7 is such that, as the cap member is rotated in a clockwise direction (looking at the parts from the discharge end), it will have a component of -motion inwardly along the body portion A, and

consequently will elect the adjustment of the elements D to active position, whereas when it is rotated in a counterclockwise direction, it will have a component of motion outwardly along said tions liquid tight at these places.

In the accompanying drawing, the invention has been shown merely by way of example and in preferred form, but obviously many variations and modications may be made therein which will still be comprised within its spirit. It is to be understood, therefore, that the invention is not limited to any specic form or embodiment, except insofar as such limitations are specified in the appended claim.

Having thus described my invention, what I claim is:

A nozzle including, in combination, a body portion having a passageway for liquid with a discharge opening of one configuration, a pair of elements mounted in grooves formed in said body portion and movable transversely of said opening to effect changes in the configuration thereof, a pair of inclined slots in said elements, a, member arranged outside the body portion and having a passageway for liquid in alinement with the passageway in the body portion, circular means mounted on ,said member and formed Vwithan vinclined wall extending into said slots, and arlongitudinal movement is imparted to said member as it is rotated with respect to the body port tion.

JAMES C. PLASTARAS.

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