Abstract:
A low pressure blower operated airknife having a housing with an elongated primary air discharge orifice for directing a narrow width curtain of air. The airknife includes an air-augmenting shroud which defines auxiliary discharge orifices on opposite longitudinal sides of the primary air discharge orifice such that air discharging from the primary discharge orifice creates a low pressure condition adjacent the auxiliary air discharge orifices for drawing additional air through the auxiliary discharge orifices which augments the velocity and volume of the discharging air current without the necessity for increasing the air inlet pressure or blower size. The shroud may take alternative forms, including pairs of wings disposed on opposite sides of the primary discharge orifice or hollow structures that surround the airknife housing. The airknife further is adapted for low pressure direction and application of air laden particles, such as preatomized liquid particles.
Abstract:
A spray nozzle particularly useful for directing a liquid coolant onto continuously cast metal shapes. The spray nozzle includes a nozzle body having a liquid flow passageway communicating with a discharge orifice and a vane disposed within the passageway upstream of the discharge orifice. The vane has a central orifice for creating an axial flow stream and a plurality of circumferentially spaced angled passages for tangentially directing a plurality of liquid flow streams which create liquid turbulence, breakdown and intermixing with the axial flow stream such that liquid emitted from the discharge orifice is adapted for more uniform cooling of a cast metal notwithstanding changes in liquid pressure commensurate with changes in the rate at which the metal is cast.
Abstract:
A turret-type spray nozzle assembly having a rotatable turret which carries a plurality of spray nozzles and which is rotatable on the nozzle body for locating a selected one of the turret nozzles in an operative spray position. The spray nozzle assembly further includes an auxiliary spray nozzle adapted for directing a higher volume liquid spray than any one of the turret spray nozzles. The spray nozzle assembly includes a body which defines a more direct liquid flow passage, with fewer turns and lesser pressure losses, to the auxiliary nozzle than to a turret spray nozzle. An adaptor also is disclosed for convenient field conversion of a conventional turret spray nozzle into a nozzle assembly according to the invention.
Abstract:
A spray nozzle for producing an asymmetrically distributed fluid discharge pattern such as for use in a container coating application is provided. The spray nozzles includes a body portion having an internal fluid passageway which terminates in a substantially hemispherical dome shaped end wall. A discharge orifice is provided in the end wall which is produced by superimposing on each other an approximately round opening and an elongated opening having opposed rounded ends. The round opening and the elongated opening defining respective edges of the discharge orifice which extend at different angles relative to a longitudinal axis of the fluid passageway. The resulting orifice produces a fluid discharge pattern wherein the amount of fluid discharged tapers in a continuous, non-linear manner from the location of maximum discharge to points of minimum flow at either end of the discharge pattern.
Abstract:
1,009,184. Spray-producers. SPRAYING SYSTEMS CO. May 30; 1963 [July 18, 1962], No. 21666/63. Heading B2F. In a trigger operated airless paint spray gun 22, Fig. 1, the trigger 25 may be rendered inoperative by rotating a member 54 such that it presents a stop surface to the trigger side walls 25s, Figs. 7, 9. The gun is also characterized in that a valve seat member 40, Fig. 2, located in the barrel 21 and engageable by a needle-valve carried by a trigger operable rod 24 is shaped to form an oval discharge orifice 42, Fig. 4, such that when the spray tip 23 is removed for cleaning &c. any pressurized paint escaping from the gun is caused to diverge into a spray-like form rather than emerge as a solid stream. The pressurized paint enters the barrel 21 through a nipple_45 a suitable packing gland 46 being provided to seal the entry point of the rod 24, Fig. 7. The latter is secured to the trigger 25 through a nut 49, such that actuating movement of the trigger when the member 54 has been rotated to remove the stop surface, Fig. 8, withdraws the needle-valve from the valve seat member 40 against the action of a spring 57, a U- shaped member 48 and plunger 56 being attached to the trigger for this purpose. The amount of withdrawal movement and tensioning of the spring 57 is adjustable by a rotatable plug 55. (For Figures see next page)