Abstract: A foam-applying nozzle assembly (N) having adjustable flow rates for applying a foam made up from a supply of a foam-forming liquid composition (F) and a flowing liquid stream (W) includes an inner barrel (I) having an axial bore (10) for communicating the liquid stream (W) from a hose. Eductor means (E) with the inner barrel (I) extracts the foam-forming liquid composition (F) from the supply of the foam-forming composition. The eductor means (E) inducts the extracted foam-forming liquid composition (F) into a first portion (W1) of the liquid stream (W) flowing through the eductor means (E). The eductor (E) has a discharge opening (22o) in proximity to the outlet (10m) of the inner barrel (I) for mixing the foam-forming composition (F) with the liquid stream (W) from the inner barrel (I) in proximity to the discharge of the liquid stream, whereby a foam is created.

Abstract: An improved control valve is provided which is utilized in spray guns and like devices for hydraulically atomizing and spraying liquids such as paint wherein the spray control valve functions as the spray tip, the spray control valve being mounted in a housing attached to the spray gun handle and includes a fluid bore communicating with the pressurized liquid supplied to the spray gun, a valve bore intersecting the fluid bore and substantially transverse thereto, and a spray opening substantially aligned with said fluid bore and intersected by said valve bore, the spray gun further includes a valve pin moveable in said valve bore and normally biased to obstruct the spray opening, and a trigger means for moving the valve pin against the biasing action to unobstruct the spray opening and define the extent thereof.

Abstract: A device for continuous transporting granulated material includes a storage ontainer and a tubular conveyor housing positioned below and storage container and receiving the granulated material therefrom. The conveyor housing is supplied with pressurized air. A separating member is movable longitudinally of the conveyor housing between a space containing pressurized air and a space containing the granulated material. The separating member is peripherally spaced from the inner wall of the housing to form a through passage therebetween, which continually connects the pressurized air space with the space containing the granulated material. The separating member is provided with an opening connected to a discharge pipe. The separating member forms in the conveyor housing a movable pressure cushion of varying volume which in turn forms in the housing a pressure gas-material mixture which is discharged from the housing through the opening in the separating member and the discharge pipe.

Abstract: Measurement of an integrated weight of a particulate material being continuously fed to a powder treating system or the like by providing a powder delivery port in a lower portion of a pressurized powder feed container for supplying the particulate material to a blowing port of the treating system, connecting a pressurized powder replenishing container to an upper portion of the powder feed container for replenishing the power feed container with the particulate material under pressure, continuously feeding the particulate material along with part of a pressurized carrier gas introduced into the delivery port of the pressurized powder feed container, communicating the powder replenishing and feed containers with each other with suitable timing for replenishing the particulate material, sequentially measuring the weights of powder contents in the containers to measure the integrated weight of the particulate material fed through the delivery port during a time period of operation; batchwise combining the weigh

Abstract: A nozzle for discharging vaporizable liquid fire suppressant material tow a flame area to be suppressed. A nozzle includes internal mechanism for forcing an insulator shroud around the liquid fire suppressant while the suppressant is still within the nozzle. The shroud insulates the liquid material while the liquid stream is traveling toward the target flame, thereby preventing premature flashing or vaporization of the liquid. A particular aim of the invention is to increase the penetration distance, i.e., travel distance before the liquid is dissipated.

Abstract: An apparatus for distributing powdered particles from a single pressurized transporting vessel to a plurality of receiving ends through a plurality of transporting pipes. The vessel is supplied with a pressurized gas to fluidize the powdered particles, which then are distributed to the transporting pipes which include discharge control valves to control the discharging rate of the particles in each of the transporting pipes. The transporting pipes are supplied with booster gas, the flow rate of which is controlled by a booster flow rate control valve. The booster flow rate control valve in each pipe is controlled in cascade by a booster flow rate controller receiving an output signal from a differential pressure detector for detecting a differential pressure of a discharging nozzle at the end of the pipes.

Abstract: A retarder device for applying gradually increasing braking force to a moving object such as a pallet rolling on a gravitationally actuated conveyor system. The device produces a three-stage application of braking force to the moving object as the object moves along its predetermined path and rolls over a brake wheel that actuates a gear train. The gear train comprises a plurality of intermeshed gears that progressively increases the angular velocity of the rotating gears as the first gear in the train is rotated. A fly wheel carrying at least one pivotally mounted fly weight, and preferably a plurality of weights equally spaced around the wheel, is fixedly secured to the terminal gear of the train. The inertia of the various members of the gear train, the fly wheel, and the fly weights applies the first stage braking force to the moving object.

Abstract: A pneumatic conveying system including an air separator chamber having an exhaust fan connected thereto to produce a partial vacuum in such chamber is described. An inlet duct is connected to the chamber through which material is conveyed by air flow into the chamber. The chamber includes an exit section within which material separated by gravity/momentum forces collect, such exit section having an air lock valve therein as described below. This valve is arranged such that in the closed position of the valve, the pyramid-like configuration is inverted with the apex of the pyramid being directed downwardly. The air lock valve includes a plurality of flexible panels and a support structure operatively connected thereto. Such panel are movable between an open position for passage of material through the valve and a closed position. The panels together define an open-sleeve-like structure in the open condition of the valve.

Abstract: Powdered particles are continuously distributed from a pressurized transporting vessel to a plurality of receiving ends such as tuyers of a blast furnace through a plurality of transporting pipes for each receiving end. A speed of gas supplied to the vessel is controlled depending on a weight changing ratio of the vessel and an internal pressure of the vessel, so that the speed of gas is maintained at constant. Booster gas is supplied to each of the transporting pipes. A discharging rate of the powdered particles is controlled by a cascade control system for each of the pipes by individually controlling a flow rate of booster gas depending on a differential pressure in each discharge nozzle of the pipes, or on an output of solid-gas mass-flow meter in each of the pipes, or on a solid-gas ratio corresponding to each length of the pipes and a mass-flow rate of the particles in the vessel per total gas flow rate.

Abstract: A wear resistant body mountable at a directional change point within a particulate material duct. A plurality of successively spaced cavities are formed in the body to trap and collect particulates flowing across the body such that the collected particulates act as a wear resistant barrier to wear of the body and the adjacent inner wall surface of the duct. A plurality of spaced, planar ribs are mounted on the body, with adjacent ribs defining a cavity therebetween.

Abstract: A pneumatic conveyor system for transporting bulk materials from a shore-based hopper (2) to a ship includes a pipeline comprising an inlet section (4), an intermediate telescopic tubing (36) and an outlet section (45). One end of the telescopic tubing (36) is interconnected to the inlet section (4) by means of a universal joint (8,10), a length of flexible tubing (12) interconnecting the hopper (2) with said one end of the telescopic tubing, while the outlet section (45) is mounted on the other end of the telescopic tubing (36) by a further universal joint (48, 50), a further length of flexible tubing (52) interconnecting said other end of the telescopic tubing (36) with an outlet from the outlet section (45).

Abstract: A method and a device for the uniform distribution of a bulk materials stream, particularly one conveyed pneumatically, onto a more extended cross-sectional area possibly divided up into partial stream cross-sections by partitions, is distinguished by the bulk materials stream passing through an elongate vertical charging space, at the end of which it is gathered into a narrowing outlet channel in which the bulk material shows an essentially uniform cross-section distribution and that this bulk materials stream then passes to the tip of a coaxially arranged distribution cone which deflects the bulk material sideways uniformly in all directions and in this way forms a hollow bulk materials curtain of uniform circumferential distribution. This bulk materials curtain can be used as such, for instance in a vessel in which the bulk material is sprayed with liquid, or can be used for the further subdivision into partial streams.

Abstract: Process and apparatus for preparing a substantially uniform, gas-containing cement slurry by directing two pressurized streams of a gas-containing hydraulic cement slurry to a common in-line focal point in a generally opposed fashion so that good mixing is achieved by the contact of the two streams. The process is particularly adapted for use in preparing "foamed" cement slurries for cementing subterranean voids such as well boreholes, groutholes, natural cavities and similar voids.

Abstract: An automatic chimney fire extinguisher and method includes a housing for insertion in a chimney at the outlet thereof and a flare in the housing connected thereto by a cord to suspend the flare below the housing at a predetermined distance. The flare is releasably retained in the housing and the extinguisher is responsive to a preselected temperature level in the chimney for releasing the flare to permit same to drop below the housing and to be suspended by the cord. The flare is ignited in response to the release thereof.

Abstract: The present invention relates to a mobile material handler useful for transferring dry, powdered, bulk material from a flat surface to a truck load-out bin, a silo, or another receptacle. More particularly, the invention relates to a mobile material handler having fluidizing means to aerate and to fluidize the material which is received in an open end of the frame of the material handler. The fluidized material flows to the inlet means of a vacuum-pressure pneumatic conveyor which is also mounted to the frame. In a bulk material warehouse and transfer system, material is stored on the generally planar floor of a large warehouse. Within the warehouse, a mobile material handler is moved to transfer dry, bulk, powdered material from the warehouse to a remote truck load-out bin or other receptable.

Abstract: A pneumatically-propelled carrier system including a pneumatic system tube of generally circular cross section interconnecting a first terminal constructed to permit the carrier to be removed, that is, a "free carrier" terminal, and a second terminal constructed to prevent removal of the carrier, while providing access to it through a terminal access opening, this latter terminal being a "captive carrier" terminal. Since the system tube interconnecting the captive and free terminals has a generally circular cross section, the carrier, regardless of its cross section, is free to assume any rotational orientation about its longitudinal axis.

Abstract: A roller rail assembly for a cargo loading system for loading cargo-loaded pallets into a vehicle, such as an aircraft. The roller rail assembly is removably mounted in a track or channel assembly having alternate cutout portions and lip portions. The roller rail assembly includes an elongated rail member which has a tension stud extending substantially normally from the main body of the assembly along the bottom edge thereof, and a support shoulder extending from the main body of the assembly substantially normally thereto above the tension stud and in a substantially opposite direction thereto. Mounting blocks and axles are provided for rotatably mounting pairs of rollers on the main body of the assembly, the rollers being positioned on opposite sides of the track for rotation on an axis substantially normal to the longitudinal axis of the track. The rail is removably supported in the track with the tension stud fitted underneath the lip portions of the track.

Abstract: In an exemplary embodiment, a slide selectively closes the upper end of the connecting tube. The dispatch tube and the receiving opening are offset relative to one another in such manner that, at the moment a pneumatic traveler is transferred out of the receiving opening, a mechanical restraining device of the dispatch tube is not yet actuated. The pneumatic dispatch station can be employed as a dispatch station with a dispatch ready position for an outgoing pneumatic traveler, as a receiving station and as a transit station with the use of only a single connecting tube movable to three positions therein. The three positions may be separated by less than two diameters of the tube.

Abstract: An enclosure construction for pneumatic tubes and power and control cables installed overhead for remote visual auto teller banking systems which is inexpensive and attractive and readily installed. The enclosure includes plastic half sections which are snap-engaged along laterally opposite longitudinal joints having weather seals therein. One of the plastic half sections is fixed internally to a semicircular clamping member which cooperates with a second clamping member. The clamping members are clamped to the pneumatic tube before one of the plastic enclosure members is assembled with the other.