Abstract: A nozzle for forming a liquid jet includes a flow passage having a circular inlet and a flat rectangular outlet and a cross section which gradually changes from a circular shape to a flat rectangular shape. The magnitude of the cross-sectional area of the flow passage gradually decreases in the flow direction of the liquid. The flow passage changes direction in a zone at the upstream beginning of the change of cross-sectional shape to assume a new direction which is at an acute angle of deflection to the original direction of the flow passage. The long sides of the rectangular cross section of the flow passage are perpendicular to a first imaginary plane containing both legs of the angle of deflection. The nozzle is formed of a first and a second nozzle part having, respectively, first and second edge faces. The nozzle parts are joined to one another by a face-to-face engagement between the edge faces.

Abstract: This invention is a novel method for fabricating leak-tight tubular articles which have an interior flow channel whose contour must conform very closely with design specifications but which are composed of metal which tends to warp if welded.The method comprises designing two longitudinal half-sections of the article, the half-sections being contoured internally to cooperatively form the desired flow passageway. Each half-section is designed with a pair of opposed side flanges extending between the end flanges and integral therewith. The half-sections are positioned with their various flanges in confronting relation and with elongated metal gaskets extending between the confronting flanges for the length of the array. The gaskets are a deformable metal which is fusion-weldable to the end flanges. The mating side flanges are joined mechanically to deform the gaskets and provide a longitudinally sealed assembly.

Abstract: Optical sorting apparatus wherein during sorting, articles are directed to free fall through an illuminated inspection chamber. A light reflecting background positioned in the chamber is adjustable to form a variable reference standard of reflectivity. A sensor positioned to receive light from the background establishes a reference level and also receives reflected light from objects passing through the chamber. A change in detected light level from the reference level is indicative of a property of an article to be sorted for selectively effecting sortation of the article.

Abstract: Fire fighting equipment consisting of a water flow pipe, connected at one end to a pressurized water source, and having an 180.degree. bend at its other end which carries a novelly constructed spray nozzle and having anti-swirl elements in the flow passages. The method of use is also disclosed.

Abstract: A fiber distribution and depositing apparatus including a forming bell including front and back walls converging and convexly curved in the direction of flow, and side walls connected to the front and back walls to define an open-endedpassageway for fluid-entrained fibers leading from an inlet to an outlet end, said side walls diverging along straight lines in the direction of flow, the cross-sectional area of the passageway along the length thereof remaining substantially constant. The forming bell is disposed between a fiber transport means for directing gaseously-entrained fibers into the bell former inlet at a high velocity and a forming surface positioned adjacent to the outlet of the forming bell and movable along a predetermined direction of movement for receiving the fibers passing through the forming bell passageway.

Abstract: A water spray nozzle for removing paint particles from air exhausted from a paint spray booth. The nozzle has an inlet and an outlet and at least two orifices therebetween which are of progressively diminishing size in a direction toward the outlet. The walls of the nozzle are designed to produce considerable turbulence of the water stream flowing through the nozzle and to produce a wide angle solid spray of water from the nozzle outlet.

Abstract: This application discloses "wiping" of a liquid, molten zinc, for example, across the surface of a strip to which it adheres. A wiping fluid, such as steam, is directed from an orifice at the strip. A valve, preferably an elongated relieved bar is positioned adjacent and behind the orifice, and flow of wiping fluid is controlled by rotation of an elongated valve in the form of a relieved bar or cam.