Combined nozzle and sprinkler

Claim 1

A combined nozzle and sprinkler comprising a tubular body forming a passageway for a supply of liquid under pressure and having a wall at one end thereof, said wall having a series of holes therein for the delivery of liquid from said body, a tubular member telescoping over said body, said body and said member each being composed of a molded plastic material, said member having a forward portion forming beyond said one end a chamber to receive liquid from said body and having a backward portion surrounding said body and formed witH a threaded section and, backwardly of said section to an open rear end of said member, with an inwardly facing true cylindrical surface of greater diameter than the portion of said body encompassed by said member, an outlet orifice in said forward portion for discharging liquid from said chamber, a male valving element mounted on said one end and coacting with said orifice to control the liquid discharge through said orifice, said body portion being formed with a threaded section coacting with the aforesaid section to detachably secure said member and said body together and for moving said member along said body by rotation of said member to adjust the position of said orifice relative to said control means and thereby vary the discharge of the liquid, said body portion having a circumferential groove formed in its outer surface backwardly of its threaded section at a location opposite said cylindrical surface, an elastic O-ring elastically fitted into said groove with its inner surface tensioned against the bottom of the groove in sealed relation thereto, the outer surface of said ring being slightly greater in diameter than said cylindrical surface and bearing elastically in sealed relation against the latter so that said member and said body are kept sealed together in all their relative positions as said member is moved to vary the liquid discharge, and a sprinkler wheel mounted for rotation in said chamber on said one end between said valving element and said wall and including a circumferential series of radially extending vanes disposed in and at an angle to the path of the liquid delivered from said holes so as to be rotated by and to break up the flow of such liquid, whereby when said member and said body are assembled together they constitute an adjustable nozzle for projecting a variable flow of liquid from said outlet orifice and when said member is removed said body and said wheel constitute a sprinkler to produce a scattered liquid spray.