Abstract: A washing device mounted on a motor vehicle comprises cold water tanks and a high pressure boiler providing water at 100 to 250 bars. A rotary cleaning arm is supplied with the pressurized hot water and has nozzles at its ends directed towards the surface to be cleaned. A protective casing surrounds the rotary cleaning arm. The cleaninig arm can be mounted underneath the vehicle for vertical movement between operative and standby positions. The rotary arm has a rotation axis passing through its center and is provided with a nozzle at each end, the two nozzles being substantially identical, of flat triangular shape and having the same mean general plane. The nozzle therefore deliver two divergent flat jets that are substantially coplanar and which have different angles of attack on the surface to be cleaned. These jets can impinge on the opposite edges of an element of an irregular surface comprising facets perpendicular to the general plane of the surface, such as cobblestones and duckboards.

Abstract: A spray boom and vessel apparatus is disclosed having one or more spray nozzles adjustably mounted along the axes of a plurality of independent spray booms. The spray booms are releasably supported upon a boom frame in horizontal, parallel relation to each other. The boom frame is releasably supported by a vessel and valve frame, which also supports a plurality of vessel and valve assemblies. Each vessel and valve assembly is in fluid-flow connection with the nozzles of one of the spray booms and a source of pressurized air. The vessel and valve frame is releasably mounted on a vehicle frame, which is pivotally attached to a vehicle.

Abstract: An improved irrigation boom assembly is provided for relatively rapid and easy mounting onto the main water distribution pipe of a traveling irrigation system, particularly such as a center pivot or linear travel system. The improved boom assembly includes a water supply drop pipe adapted for rapid and secure mounting onto the main distribution pipe by an improved clamp assembly and for receiving water from the distribution pipe via a flexible feed hose. The drop pipe has a manifold at its lower end designed for facilitated connection to a lightweight boom comprising a pair of elongated wing tubes cantilevered outwardly therefrom in opposite directions, wherein the wing tubes are each supported in an adjustably selected geometry by a respective pair of support cables anchored between the drop pipe and the wing tube and threaded through support struts mounted at spaced intervals along the wing tube spans. The outboard end of each wing tube includes an easily removable end fitting to permit periodic flushing.

Abstract: An apparatus for pivoting a boom arm in a horizontal plane and for locking the boom arm in a fixed position on one side or another of a moving vehicle. The apparatus comprises a rocker arm with a locking mechanism at each end to engage and lock the boom arm in position in its fully rotated position at either side of the vehicle. The rocker arm is operatively connected to a hydraulic cylinder to pivot the rocker arm in a vertical plane to disengage the locking mechanism from the boom arm. A hydraulic motor has a rotating shaft connected to the boom arm to effect rotation of the boom arm from one side of the vehicle to the other.

Abstract: A mobile liquid spray apparatus comprises a wheeled frame of lightweight but sturdy construction which may be propelled manually over the ground or may be towed by a towing vehicle. The frame includes a height-adjustable horizontally extending spray boom, an attachment for a pair of vertical spray booms and a self-contained liquid supply system for delivering liquid under pressure selectively to the respective spray booms. The liquid supply system comprises a liquid supply tank on the frame, and a battery driven pump for delivering liquid under pressure from the tank selectively to the spray booms through a manually settable three-way valve. The system also includes a pressure regulator valve and pressure gauge for adjusting the spray pressure. The device may also include an auxiliary hand-held spray gun which may be used in place of one of the spray booms.

Abstract: Apparatus is provided for cleaning horizontal surfaces, such as the grated flooring of paint workshops, by hydrodynamic action. The apparatus includes a carriage which can be moved back and forth over the surface to be cleaned, and a winding drum which is carried by the carriage and is arranged to pay out and wind in a high-pressure water supply hose as the carriage moves back and forth. The hose feeds water under pressure to nozzles carried at the ends of rotary arms mounted at the front and to both sides of the carriage. Water under pressure is also supplied to nozzles provided on two transverse arms of the carriage. These latter arms are angularly orientable about their longitudinal axes.

Abstract: A strip nozzle assembly containing a detachable, pressure regulating inlet coupler and a plurality of pressure regulating outlet nozzles, whereby agricultural sprays may be strip applied. The assembly having particular application in a modular spraying system adaptable to either broadcast or strip spraying. Compatibility with system pressure and desired flow rates are achieved via flat plate, sharped edge orifices that in one embodiment are arranged in a series/parallel configuration.

Abstract: A herbicide spreader is provided for pulling by a farm tractor over a tilled field. The herbicide spreader is provided with a pump for projecting water spray from nozzles down against the surface of the earth. Further nozzles and an air compressor apparatus air provided forwardly and rearwardly of the water jets for projecting air jets against the surface of the earth forwardly of the herbicide laden jets to clear rubble from the path of the water jets, and trailing air jets blow the herbicide laden water down into the earth.

Abstract: Sprayer apparatus for agricultural applications is disclosed. The sprayer apparatus disclosed includes spring-biased, damped booms having an inner portion with a parallelogram form. The individual booms have two points of articulation and they are spring-biased to a center position to permit breakaway. A linkage is provided which tends to list the outer section of each boom during breakaway.

Abstract: A smoke generator utilizes a boiler chamber within which a mixture of water nd liquid smoke generant are heated above the boiling point of water, thereby producing free steam confined within the chamber. The steam and heated liquid are independently removed from the chamber and recombined at optimum pressure and flow in a special atomizing nozzle to generate a smoke of particulate size under ten microns.

Abstract: A roadside spray apparatus primarily adapted for the precision application of chemical herbicides is mounted by means of a frame support on the front bumper of a vehicle and is monitored by the driver of the vehicle using one hand to operate electrical switches connected to solenoid valves controlling the spray through nozzles mounted on a spray boom, which boom can be adjusted laterally and can be pivoted from one side of the vehicle to the other, with the nozzles attached to coil springs on the spray boom, and with an adjustable mirror and adjustable guides located on the spray apparatus in view of the driver of the vehicle.

Abstract: A roadside spray apparatus primarily adapted for the precision application of chemical herbicides is mounted by means of a frame support on the front bumper of a vehicle and is monitored by the driver of the vehicle using one hand to operate electrical switches connected to solenoid valves controlling the spray through nozzles mounted on a spray boom, which boom can be adjusted laterally and can be pivoted from one side of the vehicle to the other, with the nozzles attached to coil springs on the spray boom, and with an adjustable mirror and adjustable guides located on the spray apparatus in view of the driver of the vehicle.

Abstract: The spray marking assembly is mounted on an agricultural or horticultural spraying or spreading implement to show visually, the area traversed so that the overlap or skip may be avoided. Usually, a pump sprays a dye from a tank through hoses to the extremity of the spray boom. This often causes poor markings due to scatter and loss as the pump has to move the fluid through the relatively long lines when demanded and the fluid and/or pressure tends to leak from the lines when not marking. The present device uses a motor and pump which run all the time when in use thus maintaining a constant pressure of fluid in the lines. A solenoid valve is situated at the extremity of the lines adjacent the discharge nozzle so that as soon as the valve is opened, the fluid under pressure is available at the nozzle.

Abstract: A modular fire-fighting unit can be used on the ground as an individual fire piece connected to a water source such as a hydrant, for producing foam or as a nurse unit to other fire apparatus, or it can be quickly mounted on, or demounted from, a portable source of water such as a 5,000 gallon tank truck, for producing foam to extinguish runway fires. The module includes a protein tank, an AFFF tank, an inflexible connection to a source of water, mixing valves and a motor driven pump so that foam may be dispersed from either a turret gun or an airport spreader bar.