Drip irrigation apparatus including a continuous outer tube and a plurality of low rate determining inserts located at desired locations therealong interiorly of the outer tube, the inserts being selected to have one or more of the following features; an outlet chamber which extends over a significant portion of the circumference of the outer tube; a configuration which allows substantial flattening of the outer tube when not in use, a pressure responsive flow controller; a pressure reducing pat...

An improved nozzle of the type which directs a flow of fluid against a moving substrate to obtain a uniform surface coating on the substrate. The nozzle consists of two rigid body halves mounted on a fluid feed pipe. One body half is fixed, and the other body half is rotatably mounted on the feed pipe for adjusting the size of the nozzle discharge opening. One or more closure loading assemblies are mounted on the nozzle for adjusting the size of the discharge opening and for maintaining the nozz...

A drip and trickle irrigator independent of the pressure of the water supply. The drip irrigator has an inlet with a variable-orifice to control the fluid flow into a chamber. A float within the chamber coupled to the variable orifice in order to vary the cross-sectional area of the orifice upon variation of the head of fluid within the chamber. An outlet inside the chamber such that the pressure of the fluid head determines the pressure at the outlet independent of the supply pressure.

A nozzle header for cooling plates according to the invention comprises a lower cylindrical header to a lower header chamber therein and having cooling water supply means for supplying a cooling water into the lower header chamber, an upper header in the form of a roof mounted on the lower cylindrical header therealong to form an upper header chamber therein substantially triangular in section communicating with the lower header chamber through apertures formed in an upper wall of the lower cyli...

The trigger sprayer comprises a body having an upper horizontally extending portion and a lower generally vertically extending portion. The body has a passageway therein extending from one end of the upper portion to the bottom of the lower portion. A cylindrical hollow and a cylindrical cavity extend into the lower body portion from the bottom thereof. An insert member is adapted to be received in the hollow and cavity, and has a passageway therethrough communicating with the body passageway, a...

Apparatus is disclosed for resistively damping capacitively stored energy in electrostatic spray guns, wherein a fluid spray valve incorporates an electrode for carrying high electrostatic voltage, the electrode terminating in the spray valve and the spray valve having a conductor contacting the electrode and extending externally thereof. A resistive element at least partially encloses the spray valve and electrically contacts the conductor, permitting electrical conductivity while also permitti...

A coolant nozzle of adjustably variable width stream for a grinding wheel or the like, the nozzle including a hollow housing extending laterally across the working face of the grinding wheel having a coolant inlet in an upper region and a coolant outlet extending laterally in a lower region, a tubular formation extending laterally across the interior of the housing having a coolant receiving opening on its upper side adjacent to one end of the tubular formation and a coolant discharging port con...

A reflective bead dispenser for use with an airless paint spray gun for marking traffic lines on pavement surfaces is connected to the spray gun by supporting a hollow tube in a passage through a handle of the gun. An inlet end to the tube is connected with a supply of reflective beads, an outlet end from the tube has a nozzle for dispensing reflective beads into a spray of paint emitted from the gun, and a valve controls a flow of beads through the tube. The beads are entrained in the paint spr...

A spraying device comprising a spray nozzle holder mountable in a holder housing and having two mounting elements extending in opposite directions from the nozzle in the holder and transverse to the housing, one of these elements being a rotatable handle. The housing has two openings located substantially opposite each other for accommodating the respective mounting element; at least one opening having a width which is less than the width of the holder in the vicinity of the nozzle, and at least...

A nozzle includes a tungsten carbide body and threaded steel sleeve. The nozzle body includes a fluid jet opening arranged to be reoriented in response to rotation of the nozzle body. The nozzle body includes a first set of apertures for receiving a turning tool. The sleeve comprises a split sleeve retained longitudinally upon the nozzle body and is rotatable relative thereto. The sleeve threads are protectively disposed behind a flange of the nozzle body. The sleeve includes a second set of ape...