Abstract: A combustion plant includes a circulating fluid bed, which is maintained by the supply of fuel, inert material and oxygen-containing fluidizing gas to a vertical furnace shaft. This is, at its upper end provided with an outlet for combustion gases and bed materials, which is separated from gas in a separating means, and by way of a lock is returned to the furnace shaft. The separating means is of a mechanical type, and located vertically above a further vertical shaft communicating with the lock. The further shaft encloses distribution means for the particles and a heat exchanger for cooling the particles falling from the gas stream, before they are re-introduced into the furnace shaft by way of the lock.

Abstract: A gas separator system for separating gases of substantially different molecular weights, such as oxygen and carbon monoxide, includes a series of concentrically nested coils, with the output of each coil being connected to the input of the next coil. Gas is directed through the coils at high velocity to cause laminar flow in the tubes of the coils, with the heavier gas flowing through the tubing adjacent the outer periphery of each coil of tubing, as a result of centrifugal force, and the lighter gas being forced to flow near the inner surface of the tubing of each coil. Starting one or two turns from the input to each coil, after laminar flow is established, small openings are provided at the outer periphery, or preferably at the inner surfaces of the tubing making up the coils, whereby one of the gases selectively flows out of the coils of tubing into an enclosing housing.

Abstract: The invention solves a method and an apparatus for the separation of solids from gaseous mixtures especially the separation of phthalic anhydride after its desublimation from mixtures with vapours of sublimable substances, steam, air or inert gases, which originate at sublimation refining or at catalytic production of phthalic anhydride by air oxidation of naphthalene or o-xylene.The flakes of phthalic anhydride, which originated after the decrease of temperature in the desublimator space were agglomerated and compacted due to the increase of velocity of gaseous mixture in contracted cross-section of the separator. The formed agglomerates are separated from the gaseous mixture and collected in a receiver well. From the well the agglomerates are transported by a conveyor or they are continuously melted. The melt formed outlets through a siphon. The rest 1 to 5% of phthalic anhydride is separated from gaseous mixture in a filter from wire net and by gradual melting is introduced into the receiver well.

Abstract: A device is described for separating airborne particles into grain size classes.

Abstract: Moisture is removed from stack gas prior to measuring concentrations of gaseous constituents in the stack gas. A sample of the stack gas is passed through a cooling zone wherein the gas is cooled to a temperature in the range of about 40.degree.-45.degree. F., after which the cooled gas is passed through a condenser. The gas rises through the condenser wherein water condenses out of the gas and falls by gravity into a U-shaped trap. A drain passage communicates with the downstream side of the trap whereby condensed water can be drained periodically out of the trap to control the amount of water in the trap. The dried gas passes out of the condenser into one or more gas constituent monitoring stations.

Abstract: A vacuum receiver having a first elongate tube oriented along a vertical axis with a second tube of sufficiently greater girth encircling the first tube and forming an annular passage therebetween. A first conduit extends through the side wall of the first and second tubes and opens outwardly inside the first tube. The first tube has a top wall closing off the upper end and an open lower end. A second conduit extends coaxial with the first tube and is smaller in diameter than the first tube and terminates above the top wall. The second conduit communicates with the second tube leading a fluid stream from the passage at a location directly above the top wall. Adjustment structure is provided for varying the effective vertical spacing between the terminal end of the second conduit and the top wall of the first tube to thereby enable a varying of the velocity of the fluid stream in the passage to accommodate a specified material without causing the material to exit the second tube via the second conduit.

Abstract: A filter assembly for a vacuum cleaner hose includes a tubular member having opposite open ends and a filter plate between said ends. In one version, the assembly is telescoped into the vacuum cleaner hose and has a reduced opening at one end with the filter plate having a solid central core that is larger than the reduced opening and passages surrounding the central core. In a second version, an enlarged intermediate portion has tubes extending therefrom that respectively telescope over and into adjacent conduit sections of the vacuum cleaner hose and the filter plate is located in the enlarged portion.

Abstract: A housing surrounds a compressor for cooling media and forms at one axial end of the same a chamber which receives from the compressor one or more streams of gaseous cooling medium in which compressor lubricating oil is entrained. The chamber communicates with an outlet of the housing and is filled with a body of gas-permeable material through which the stream or streams must pass on the way to the outlet, and which separates entrained oil from the gaseous cooling medium.

Abstract: A deaerator for removing gases from complex liquids such as pulp slurries in accordance with one aspect of the invention includes an elongated tubular body adapted to be disposed in a generally horizontal position and having an inlet end and an exit end for the flow of liquid therethrough. A chamber adjacent the exit end is provided for accumulating gases therein and a gas removal vent is associated with such chamber. A set of longitudinally extending vertical baffles are disposed in a lower portion of the tubular body, between which baffles a main portion of the liquid flows. A set of lateral baffles extend across the interior of the tubular body, such lateral baffles projecting above the longitudinal baffles and being spaced apart along the tubular body. The lateral baffles are also spaced from the top wall of the tubular body to define therebetween a flow channel along which bubble-containing liquid is guided toward the chamber.

Abstract: An air cleaner especially for use on small single cylinder internal combustion engines has a substantially annular air filter element of the dry paper type, removably mounted in a housing to divide the same into inner and outer compartments, the latter having an outlet for cleaned air that is connectable with the air intake port of the engine carburetor. An inlet passage for air to be cleaned which leads to the inner compartment, is so constructed that air flowing therethrough must undergo an abrupt change in direction in order to reach the inner compartment, and has an outlet so located that solid contaminants entrained in the air flowing to the inner compartment, by virtue of the tendency thereof to continue moving in the direction they were, leave the inlet passage through that outlet and hence are separated from the air before it enters the inner compartment.

Abstract: In a dust collecting suction system for a rock drilling apparatus, the air rushing out of the borehole is collected in a hood and sucked through a coarse dust separator and a filter unit. The coarse dust from the separator is cleaned by an air currrent to remove remaining fine particles and then it is dumped on the ground whereas the finer dust from the filter unit is collected in plastic bags.

Abstract: An improved linear accelerator separator wherein much higher kinetic energy can be imparted to the particulate matter thereby significantly increasing the separation efficiency as compared to the prior art. In particular, the particles and airstream are rapidly accelerated and directed into an expansion chamber which is sufficiently long to permit the particles to expand or spread out and fall to the chamber bottom and to permit the airstream to lose velocity and to back up or turn around and exit from the chamber entrance.

Abstract: A process is disclosed for the separation of the components of a gaseous mixture which makes use of two nozzles, through which the mixture is caused to flow, placed in opposition to each other in a manner as to produce curvature of the flow of the interacting jets. Under the conditions of high velocity and streamline curvature the induced pressure gradients cause the preferential migration of one or more components of the gaseous mixture with respect to the others. The spatially separated components are removed in separate streams from the region of the interacting jets.

Abstract: A separator for separating water from a mixture of water and steam in which an elongated, outer, water scroll is concentrically spaced from an elongated, inner, steam scroll. One longitudinal edge of each scroll is connected to a girth baffle disposed adjacent the side of a steam drum, and both scrolls extend through semi-circular curves of 180.degree. in cross section. The steam scroll is covered through the first 90.degree. of its curve, and is provided with a longitudinally-elongated opening extending circumferentially the second 90.degree. of its curve. A perforated plate encloses the bottom of the steam scroll to form a longitudinal flow passage. The centrifugal action imparted by the 180.degree. curvature of the separator causes the water to sepate from the steam-water mixture introduced between the steam and water scrolls, to flow along the inner surface of the water scroll, and to discharge downwardly through perforated, water splash diffuser plates.

Abstract: Apparatus and method are specified for the separation of isotopes of elements and their compounds and other mixtures in gaseous form, for example, the separation of mixtures of uranium isotopes U-235 and U-238 as uranium hexafluorides. The separation is effected by passing a stream of the gaseous isotopic elements or compounds at high velocity into a low-molecular-weight stopping gas. The heavier isotopes travel farther through the stopping gas than the light isotopes in a given time and a spatial separation is thus achieved. The high velocity isotope stream is produced by acceleration of the isotope mixture in a low-molecular-weight carrier gas during passage through a nozzle into the region of the stopping gas. A flow of the stopping gas is maintained to remove the isotopes from the region of the high velocity stream. This flow is subsequently split into streams each enriched in one of the isotopes.

Abstract: The disclosure concerns a separator for removing broken engine parts and other debris from the hot gases passing fro the exhaust manifold of an engine to the inlet of an associated turbocharger. The separator includes an annular separation chamber in which the gases are swirled by stationary vanes to effect centrifugal separation of the debris, and a cylindrical screen which filters the gases as they leave the separation chamber. The screen is mounted in cantilever fashion within the separator casing and carries, at its free end, the vanes and a deflector which directs inlet flow radially outward to the separation chamber. The vanes are freely mounted in slots formed in the screen, where they are held captive by the slot margins and the deflector, and the tips of the vanes are spaced radially from the surrounding casing of the separator.

Abstract: An improvement in an air intake for an aircraft engine, particularly a prop-jet engine, which intake is ring-shaped at the forward part thereof and has a central, non-rotatable body mounted in said intake, which together form an intake diffuser, the improvement comprising a displaceable inlet lip on said intake, said lip being displaceable to sealing contact against said central body and against the direction of air onflow, and said lip in said sealing contact position forming a ring-shaped inlet gap behind said lip.

Abstract: A vapor-liquid separator is provided which is adapted to be connected directly to the exit of a fixed reactor bed, and includes a vertically disposed housing, an upper portion of which is connected to vapor-liquid inlet means which may be provided by the fixed bed reactor so that a vapor-liquid mixture may be introduced downwardly into the housing.

Abstract: An enclosure in the form of a shed is disposed to extend along the entire length of the battery of ovens at the coke discharge side thereof. The shed roof rises from the top of the ovens to a shed wall spaced outwardly from the ovens beyond a track for a quench car. The shed wall essentially supports the weight of the shed roof in a cantilever fashion. Within the shed a baffle plate, carried by the shed wall, extends in an upward direction toward the battery of coke ovens. A conveyor is carried by the shed wall along its length for conveying solid particles of coke dropping from the baffle plate onto the conveyor. The shed further includes a pipe for extracting smoke within the shed which occurs when hot coke is pressed out of an oven chamber. The smoke extraction pipe is carried in one embodiment by the shed roof vertically above the baffle plate, in a second embodiment, by the shed wall above the upper end of the baffle plate and in a third embodiment by the shed wall at the lower end of the baffle plate.

Abstract: Method and apparatus for automatically popping corn in heated seasoning oil. A rotary valve disk in a closed pot is operated to correlate the phases of corn and salt input into the pot, cooking, steam discharge, and discharge of popped corn and unpopped kernels by means of an air current. A deflector plate directs the air into a path for optimum corn evacuation through a downwardly facing outlet. The air current sweeps the corn and kernels through the outlet and along a curved path whereby the corn and kernels are separated from the air current. Thereafter the air current is recirculated into the pot. "Old maids" in the discharge of popped corn from the pot are trapped and separated therefrom for removal through a chute in one form, or through a screen in the bottom of the display case in another form.