Abstract: A method is described for utilizing metal containing by-products or waste products of metallurgical processes. The metal containing particles, or dust originating in metallurgical processes are agglomerated with a combustible agglomerating agent, and are usually charged to smelters, converters, or similar high temperature installations for the recovery valuable metals present in such dust particles. The agglomerates are obtained by mixing the dust particles with an amount of combustible agglomerating agent. The amount of agglomerating agent used for producing the agglomerates is related to the bulk specific gravity and the particle size range of the dust particles. The combustible agglomerating agent of this method, such as hydrocarbon wax, tar, bitumen, distillation, residue and similar combustible material, is solid at ambient temperatures.

Abstract: Method for removing a malodorous or toxic gas from an industrial exhaust air stream in the presence of ozone and water by applying radiation to a plurality of reaction zones sequentially aligned in the air stream. The reaction is maintained at optimal efficiency by adjusting both the ozone concentration and the radiation intensity.

Abstract: This invention relates to a moveable support frame for supporting a person, such as a mechanic, who may be working on cars, trucks and the like. the invention provides a moveable support having four ground engaging wheels, which support two opposed longitudinal members. At least one cross member is affixed between the opposed longitudinal members. The cross member has a number of spaced locking passageways therein. An upright support post assembly is also provided, which is supported by the cross member. The support post assembly is releasably secured to the cross member by a locking pin which is inserted into the lower part of the assembly and through the locking passageways. The support assembly includes a cushioned person support, which includes a stool configuration, a frontal support configuration, back support configuration and a creeper position.

Abstract: This invention relates to a space-efficient cabinet for housing a computer work station. The computer work station can include a video display monitor, a CPU/disk-drive and a key pad. The cabinet has two generally opposed side walls and generally opposed front and back walls, which extend between the side walls. At least one horizontal surface is provided extending between said front back and opposed side walls, to carry the video display monitor. An inner angled shelf is also present, and is affixed between the side walls, to carry the CPU/disk-drive. The shelf is angled downwardly from front to back relative to the horizontal allowing access to the CPU/disk-drive whereby discs can be readily inserted into or removed from said CPU/disk-drive. The angle of this shelf carrying the CPU/disk-drive ensures a minimal footprint of the cabinet on the floor thus saving floor space. A moveable partition is also provided to support the key pad thereon.

Abstract: A shield for a person has a shaft, a handle and a release trigger in the shaft. A plurality of ribs are pivotally attached to the shaft at the other end from the handle. A support is provided for the ribs and is movable between an open configuration in which the ribs extend mainly radially outwards and a closed configuration in which the ribs are adjacent the shaft. The release trigger holds the support in the closed configuration. A spring is provided for urging the support from the closed to the open configuration. A flexible cover is attached to the ribs, and the shield is dimensioned to withstand the impact from a large object, such as a dog, or a missile thrown at the shield.

Abstract: A method of coloring a black and white video signal is provided. At least one area of a frame is defined with reference to luminance values in that frame, and luminance levels are assigned to that area. A color is then assigned to that area, and the area is colored with it. In a subsequent frame, luminance levels are used to determine which part of the preceeding frame has been carried over into the subsequent frame and which portions of the subsequent frame adjacent that part have the same luminance values. That part and those portions are then colored with the respective assigned color.

Abstract: An articulated vehicle has two body portions which are pivotally connected and supported on a frame. First and second wheelsets are pivotally mounted to and support the frame. The third and fourth wheelsets are provided for supporting the other ends of the first and second body portions, remote from the frame. A steering arrangement comprising a detecting device and a guiding device are provided, which can be in the form of a mechanical linkage. The first detecting device detects changes in the angle between the frame and the first body portion, while a second detecting device detects changes in the angle between the frame and the second body portion. Corresponding first and second guide devices respond to the detected angles; the first guide device guides the first and third wheelsets to radial alignment, while the second guide device guides the second and fourth wheelsets to a radial alignment.

Abstract: A conveyor is shown having an endless material transporting member running between an idler sprocket at one end and a drive sprocket at the other, both supported in a frame of the conveyor. A drive motor is used to drive the drive sprocket, and hence the conveyor. A controlling device for the motor is provided having a pivotally mounted slack sensing lever having a first rest position spaced apart beneath an upper flight of the endless material transporting member. A counterweight, resting on a stop urges the lever in position. The lever is fixed to a pivot pin, which has a trip lever attached. Upon slack in the chain deflecting the slack sensing lever, the pivot pin rotates moving the trip lever which in turn activates a microswitch controlling the motor. Upon sufficient deflection, the motor will be de-activated.

Abstract: The rotary machine, for example an air pump, has two rotors and vanes carried by the rotors within a housing, to pump fluid between an inlet and an outlet on opposite sides of the housing. The vanes are guided by tracks, so that the vanes are withdrawn flush with the rotor surfaces at a contact line between the rotors. In one embodiment, ends of the vanes are carried in carriers by means of bearing blocks. The carriers rotate at an average speed equal to that of the rotors, to reduce the movement of the ends of the vanes. The mechanism can be employed in a single rotor machine.

Abstract: The invention relates to compositions containing an inhibitor of the Golgi enzyme .alpha.-mannosidase II and which may contain an interferon or interferon inducer and to methods of preventing and treating diseases, such as proliferative diseases, viral infections and neoplastic growth and metastasis with the compositions.

Abstract: A plasma separator for receiving a blood sample includes a central chamber of inverted conical shape and an outer annular chamber connected to the central chamber by a downwardly inclined passageway. The separator is designed to be rotated at high speed about a vertical axis so that red blood cells in the sample migrate down the passageway and into the outer chamber, leaving clear plasma in the central chamber that can then be removed by pipette.

Abstract: A process is described for the mineral separation of rare earth metal compounds, such as bastnaesite, contained in oxidic minerals. The process is a froth flotation process utilizing a novel collector emulsion, which is an emulsified mixture of:a secondary amine modified sulphonated fatty acid,a high rosin containing tall oil fatty acid,an anionic petroleum sulphonate, anda high molecular weight primary amine.The collector emulsion mixture is added to the aqueous slurry of the comminuted rare earth metal compound containing oxidic mineral, which has been previously conditioned in a conventional manner. The conditioning reagents may include alkaline pH modifiers and gangue depressants such as citric acid, oxalic acid, sodium silicates and fatty acids.The rare earth metal compounds will be concentrated in the froth, and are separated in the conventional manner.

Abstract: An improved bath for use in pickling of steel strip manufactured in a hot strip mill. Pickling fluid, usually acid, is supplied to the bath through apertures in the sidewalls of the bath. A plurality of apertures are provided spaced at differing heights from the bottom of the bath so that acid may be supplied to the bath at various fluid depths. Advantageously, the bath comprises downwardly and inwardly sloping surfaces and the outlets of the apertures are elliptical in shape. In this manner the bath accommodates steel strip of varying widths while ensuring addition of acid to the bath adjacent the edges of the steel strip. Improved agitation of the fluid in the bath enhances the throughput speed of steel strip. To further enhance agitation the inlet apertures are arranged to introduce pickling fluid in a direction which so countercurrent to the direction of movement of steel through the bath.

Abstract: A support device, for the monitor and keyboard of a personal computer, enables the personal computer to be used by a person lying on a bed. The support device has a support body adapted for mounting over a person on a bed. The support body has first and second shelves. Each shelf is inclined forwardly and downwardly towards the user, and the second shelf can be inclined at a greater angle. The monitor and keyboard are mounted on the first and second shelf respectively. Retaining members are provided for holding the monitor and keyboard on the shelves. The support body can be mounted on the bed itself, or on a base running on wheels beneath the bed.

Abstract: A dispenser for a roll of sheet material has a body that defines an elongate chamber open at the front. Baffle and closure members are pivotally mounted to the body for movement between open and closed positions. The baffle member can be mounted at a lower edge, while the closure member is mounted at an upper edge. A closure member includes a cutting edge for a sheet of material. In the closed positions of the baffle and closure members, material from a roll passes through a gap formed between the baffle and closure members. A piece of the sheet of material can then be torn off by one hand, by pulling it against the cutting edge.

Abstract: An inflatable ball is disclosed capable of having eccentric flight and bounce characteristics. The inflatable ball has an outer inflatable chamber having a first sealable orifice and an outer skin. An inner fillable chamber having a second sealable orifice and an integral inner skin is also provided. The second sealable orifice is in the outer skin of the outer inflatable chamber. The inner fillable chamber is substantially smaller than the outer inflatable chamber and is located within the outer inflatable chamber generally adjacent the outer skin thereof. The inner fillable chamber is attached to the outer skin at the second sealable orifice. In the preferred embodiment the ball is spherical and the first sealable orifice is diametrically opposed to the second sealable orifice. The second sealable orifice may be provided with locking ridges to secure a plug therein.

Abstract: A two position four-way switching valve has two inputs and two outputs. In one position of the valve, each input is connected to a defined one of the outputs, while in a second position the outputs are reversed. In a specific embodiment, the valve includes an inner cylindrical member enclosed within an outer casing having an opening forming an outlet. The other outlet and the two inlets are formed by tubes that extend inwardly through the casing and communicate with ports in the inner cylindrical member. The ports include first, second and third ports are spaced axially along the cylindrical member. Fluid entering through the inlets is routed to the outlets by plug-type valves including seals carried by an axially movable stem extending through the cylindrical member.

Abstract: A vessel has a central longitudinal axis, a pair of trunnions defining a tilting axis, and a fixed bottom and a false bottom. The false bottom comprises at least one screen. At least one of the screens is affixed to the vessel by a plurality of hinges so as to allow the screens to freely swing from a first position to a second position as said vessel is tilted about the tilting axis.

Abstract: A brake assurance monitor, for controlling the braking and propulsion systems of a vehicle, has a controller for controlling normal braking, a first level emergency braking and a second level emergency braking. The controller has inlets for connection to lines carrying vital command signals and outlets. A first switch device has inputs for connection to other lines carrying command signals. A number of alternative first inputs and first outputs, which are connectible to the normal or alternative inputs. The outputs are switched from the normal to the alternative inputs by an actuator, controlled by the controller; switching occurs when emergency braking is required. A second switch device similarly has normal, second inputs connected to outlets of the controller, and alternative, second inputs for connection to the lines carrying vital command signals. A second actuator maintains second outputs of the second switch device connected to the normal second inputs during normal braking.

Abstract: A film transport mechanism for an optical printer in which the film is positively clamped and laterally tensioned at the position of the aperture between each film advance step, so that the film lies absolutely flat in the focal plane of the lens system of the printer during exposure. This is achieved by providing registration pins and a pressure pad at one side of the film and a curved blade at the other side that move towards and clamp the film. The blade progressively tensions the film laterally against the pressure pad and registration pins.