US1656417A - Adjustable nozzle - Google Patents

Description

Patented Jan. 17, 1928.

UNITED s TATESPATENT OFFICE. y,

GEORGE BBOWNING, F WILMETTE, ILLINOIS, ABSIGNOB '10 CHICAGO FLEXIBLE SHAFT COMPANY, OF CHICAGO, ILLINOIS, A 'COLPOBATION OF ILLINOIS.

ADJUSTABLE NOZZLE.

Application led June 22,

The purpose of this invention is to provide an improved form of nozzle particularly adapted for use in lawn sprlnkles, and designed with a view to economy of manufacture, and simplicity in adJustment. It consists of certain features and elements of construction as herein shown and described, and as indicated in the claims.

In the drawings Figure 1 is a side elevation o'f a portable lawn sprinkler standard of the rotatmg arm type, fitted with twosimilar nozzles embodying this invention.

Figure 2 is a vertical medial section showing one of the nozzles as adjusted to throw a wide spray.

Fi ure 3 is alsoa medial section of the, nozz e showing a valve adjusted to throw a coarser stream.

While it may be understood that the features of this invention are not limited to the nozzle used in a lawn sprinkler, I have chosen this device for purposes of illustration, and in Figure 1, I have shownthe sprinkler base, 1, upon which a hub, 2, is ro- 1 vtatively mounted with its rigid radial arms,

3, through which the water is conducted to the nozzles mounted int-he threaded terminals, 4, of the arms. Each nozzle is attached b `means of its threaded base nipple, 5, to w ich the upright inlet stem, 6, is screwed The stem, 6, provides a lateral inlet for the water into the barrel, 7, ata point between its ends and the barrel is bored through from end to end. At the discharge end it is formed with an inturned iange, 8, through which the head, 9, of the valve member, 10, is slidably adjustable. Back of the head, 9, the valve member is reduced at 11 to provide space for the water in the chamber, 12, of the barrel. The rear end of the barrel opposite the discharge end is counter-bored to a slightly larger diameter than the chamber, 12, and a retaining bushing, 13, is forced into place against the shoulder, 14, so as to engage the iiange, 15, of the valve member to prevent the latter from being lost out of the. barrel. Preferably, a washer of packing material, 1G, is

inserted back of the bushing, 13, and a second bushing, 17, is forced in to fill the re- 'maining length of the counter-bored portion.

The bushings, 13 and 17, are bored to lit snugly the stem of the valve member, 10,

v19215. Serial No. 38,665.

and the rear end of said member is accessible for ad'ustment outside the barrel, bein prefere ly provided with a knob, 18 whic may beA permanently attached, and orms a head for limiting the forwardl thrust position of the valve member, as s own in Figure 2.

The rear or outer end of the bushing,

is counter-bored and threaded at 19 to ceive athreaded split bushing, 20. The for. ward end of the ushing, 20, is tapered at 21, to co-o erate with the inclined shoulder, 22, of the ushing, 17, so that as the part 20 is screwed inwardly against the inclined shoulder, 22, its split portion will be forced into clamping engagement with'the stem of the valve member, 10, for holding it at any adjusted position. This clampin engagement may be effected by a artia turn ci? the knurled head, 23, of the ushing, 2G, or the valve may be released by a similar movement in the opposite direction. Thus, the nozzle may be very quickly and easily ad- ]usted for throwing the desired form of spray or stream, since the valve head, 9, may be set at any point in its range, merely by .a longitudinal sliding movement of the valve member, 10.

It will alsobe noted, that with the exception of the cast nozzle body, the parts are all simple cylindrical forms which may be cheaply and ra idly produced on an automatic screw mac ine or the like, thus rendering the construction economical to manu-4 facture.

I claim 1. In a nozzle thel combination of a barrel bored through from end to end and provided with a lateral inlet intermediate its ends, a valve member having a portion adjacent one end of the barrel for controlling" discharge therefrom, and a portion accessible beyond the other end of the barrel for adjusting said member, said other end of thepbarrel being counterbored to form a shoulder, a bushing fitted around the `valve member against said shoulder, and a secondbushing inserted adjacent the first with packing material between said bushings, said second bushing being counterbored at its outer end and formed with an inclined shoulder at the inner end of the counterbore, and a split bushingscrewed into the counterbore of they second bushing and having a tapered end portion engaging the inclined shoulder, to- 1w gether with means on thesplit bushing outside the barrel for adjusting it to force said tapered end ortion a ainst the inclined shoulder for c amping t e valve member to retain it in adjusted position.

2. In a nozzle in combination with a barrel having a bore extending from end to end with a. dischar opening at one end and a transverse shou der intermediate the ends of the barrel, together with a lateral inlet entering the barrel between the discharge opening and said shoulder, a valve-member hav-` ing a portion at oneend to co-operate with the discharge opening, and a. stem portion in oounterbored at its outer 20

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