Abstract: There is disclosed a manifold assembly for a rotary solvent extractor formed of an elongated fluid distribution trough or conduit divided into a plurality of fluid distribution subsections by intermediate gate members wherein each fluid distribution subsection is in fluid communication with a fluid supply conduit. A deflector plate is disposed therebelow beneath a manifold assembly to permit for the adjustment of the angle of fluid discharge.

Abstract: An improved process for heat-treating pellets in a pelletizing machine in which hot gases are generated and passed through a bed of pellets includes charging solid carbonaceous fuel onto the surface of the pellet bed and burning the carbonaceous fuel to generate at least a portion of the hot gases.

Abstract: A market basket is provided with a U-shaped handle having outwardly projecting locking tabs. The locking tabs, each comprised of a support bar and a locking bar, are slidably and rotatably received in vertical slots in the side walls of the basket. With the locking tab at the bottom of the side wall slots, the handle is freely rotatable. When the handle is lifted upwardly while in the vertical position, each of the locking bar enters into and engages a second vertical slot provided by a locking block to prevent the handle from rotating, the locking block being located on a flange which depends downwardly from an outwardly extending lateral rim on the upper edge of the basket. In an alternate embodiment, the support bar has cross arms forming a cruciform cross sectional shape which engage the correspondingly shaped top of the sidewall slot providing three support points and additional handle locking action.

Abstract: A hammerhead type of crane has a structural tower with opposed structural cantilevers extending horizontally therefrom and there is a horizontal track along which a load carrying trolley may move through the tower between limits near the outer ends of the cantilevers and a second horizontal track along which a counterweight may travel at the same speed and distance but in the opposite direction and with the load trolley and counterweight passing each other as they move through the tower from one cantilever to the other. The counterweight is moved by means of a cable that has its opposite ends attached to the counterweight and which between its ends is wound about a reversible drum arranged to selectively move the counterweight in one direction or the other.

Abstract: There is disclosed a process for extracting oleaginous seed material consisting in part of solubles comprising carbohydrates, fatty-acids, non-oil lipids and oils with a less concentrated aqueous solution of a monohydric alcohol selective for the extraction of the solubles other than the carbohydrates and oil followed by a contact of the resulting particulate solids with a concentrated aqueous solution of a monohydric alcohol for the extraction of oil.

Abstract: There is disclosed a train positioner for sequentially advancing a string of railroad cars to a rotary car dumper in a step-by-step and a car-by-car sequence. Each of the cars has rotatable couplings permitting the rotation of each car about a longitudinal axis. The rotary car dumper is adapted to invert a railroad car about that axis. Two car-pushing members are provided which are adapted to sequentially engage a car and advance the car toward the dumper. A drive arrangement is provided which is adapted to drive at least one of the pushing members forwardly toward the dumper a distance corresponding to about the length of a car while that pushing member is engaged with a car while retracting at least one other member rearwardly away from the dumper a distance corresponding to about the length of the car while being disengaged from a car.

Abstract: The load carrying upper reach of a belt conveyor particularly useful for transporting large pieces of rock and other heavy bulk material dispenses with the usual idle troughing rollers and is supported by an endless succession of spaced transverse flexible cross members or hammocks each of which has a trolley at each end riding on endless rails extending along each side of the belt and around the rollers at the head and discharge ends of the belt conveyor. Along the return strand of the conveyor belt the hammocks are above the belt but rest on it. The side-to-side distance between rails is less than the width of the conveyor belt so that the weighed belt cradles itself in the hammocks. However, at the head end of the conveyor there is a decending traveling belt ramp and at the discharge end an upwardly sloping belt ramp to flatten the hammocks and the belt for passage around the head and tail pulleys respectively. In these areas, the rails spread apart to take up the slack in the hammocks.

Abstract: There is disclosed a process and apparatus for the recovery of heat from exhaust or waste gases having a temperature of from about 500.degree. to about 2500.degree. F. generated in a process operation cycling between an operational mode and in idling mode utilizing an intermediate heat transfer fluid to recover heat and to use all or a portion of such recovered heat, inter alia, in such process operation.

Abstract: This invention relates to a sieving roller conveyor for transporting green pellets and for sieving off fines. The conveyor comprises a series of horizontally disposed rollers which are alternately spaced to provide a cleaning clearance and a sieving clearance. The rollers extend transversely to the direction in which pellets are to be conveyed and are rotatably mounted in a frame and provided with drive mechanism for the rotation of the rollers in the direction in which the pellets are to be conveyed.

Abstract: An improved stacking tower is equipped with a dust pollution control system which maintains a negative pressure within the tower and comprises an exhaust means, dust collection and removal means and movable closure means for closing the discharge openings of the tower. A modulating air damper is also provided to adjust the volume of air passing through the tower.

Abstract: Micronized coal is removed from coal-bearing steam by spraying stabilized petroleum oil into the steam and directing the resultant stream at a separation surface on which a coal-oil slurry is deposited and collected. Apparatus includes conduits which direct the resultant stream downward into a housing and normal to a surface on which the slurry is deposited by impact forces. In additional apparatus disclosed, the resultant stream is directed from a horizontal conduit circumferentially along the interior wall of a horizontally disposed cylindrical chamber at the top of the chamber and the coal-oil slurry deposited on the wall by centrifugal force is collected in a trough situated below a longitudinal slot at the bottom of the chamber. In both types of apparatus, after separation of the slurry the velocity of the steam is reduced to settle out remaining oil droplets and is then discharged to the atmosphere.

Abstract: There is disclosed, for recovering an aqueous organic solvent in fractions of different concentrations from a miscella, a rectification and stripping process utilizing an evaporation system comprising evaporators, rectifiers and a stripping column wherein the liquid effluent from the evaporation system is stripped free of the organic component of the solvent.

Abstract: A continuous process for heating a fluid by recovering heat from a heated, pumpable aqueous slurry of granular material wherein the slurry is passed through an indirect heat exchanger to heat the fluid and then passed to a second indirect heat exchanger to preheat water for forming of further heated, pumpable slurry, with the slurry next passed to a third indirect heat exchanger to heat makeup water to the system and then to a thickener wherein the granular material is separated and the water recovered from the thickener is returned to the system.

Abstract: There is disclosed a method of reducing the swelling characteristics and bed characteristics of a pelletized fuel during a sintering operation. The method comprises the steps of pulverizing the coal to form a powdery mass, forming the mass into discrete pellets, providing a coating on the pellets with soluble salts, burnt lime, or hydrated lime, and heating the pellets to a temperature exceeding 800.degree. F.

Abstract: A method of controlling a process off-gas system by generating a model of the input to the system as a function of the gas generating inputs to the process vessel served by the off-gas system and feeding forward this flow representation as the set point for a feedback flow control loop for the downstream off-gas system fans. The feed forward signal is trimmed by a process off-gas pressure feedback loop which when applied to a TBRC off-gas system assures a minimum flow of leakage air to prevent puffing. The flow control feedback loop employs a mass spectrometer to provide on line computation of the true off-gas flow at the fans. Since the input model can be generated as a simple linear function of the SCFM of the gas generating inputs to the process, the flow control loop is operated on the same basis although it can also be operated on the basis of mass flow.

Abstract: This invention provides an apparatus for the single spot servicing of a coke oven on the coke side of an oven battery. The apparatus includes a turret with oven servicing heads affixed thereto and mounted for rotational movement on the free end of a support arm which is mounted for pivotal movement about a fixed point on the car. Pantographic like linkage is provided to coordinate the rotational and pivotal movement of the turret assembly. A coke guide carriage is mounted for reciprocal movement along a rail system consisting of two rails in an angled relationship. The carriage and turret are mounted on the car to permit the sequential indexing of these servicing devices for use at a selected oven in the battery without repositioning of the servicing car relative to the battery.

Abstract: A continuous type of bucket unloader especially useful in transferring bulk cargo from a floating ship to shore has a main loading boom with an endless bucket chain pivotally suspended at its shipside end and which is pivotally mounted between its ends on a horizontal pivot on the shipside end of a lever which, in turn, is pivotally supported on a horizontal pivot between its ends on a support structure that, in turn, is fixed on a gantry. The landside ends of the boom and the lever are counterweighted and adjustably connected to each other whereby the angular relation of the boom to the lever on which it is mounted may be varied, and the lever, in turn, has a fluid pressure cylinder and piston unit for pivotally adjusting its angle relative to its support on the gantry.

Abstract: A bulk material unloader in which a clamshell bucket is suspended from a boom which is luffed from a position over the material to be unloaded through the vertical to a position over a bulk material receiving hopper. The hoists and/or the anchors for the bucket hold and close ropes are mounted on the unloader base on the opposite side of the hopper from the boom pivot such that the suspended length of the hold and close ropes is increased as the boom is luffed through the vertical and the bucket is thereby lowered into the hopper with the hoists remaining inactive until the bucket is in position to be opened and discharged with minimum dusting effect.

Abstract: A cross fire stoker adapted to burn a difficultly ignited fuel is disclosed, together with a method of operating the stoker. The stoker is adapted to burn such fuel in a furnace not having large front or rear arches and includes a horizontal traveling grate within the furnace which is adapted to convey a bed of solid carbonaceous fuel from a charging zone, through an ignition zone, through a firing zone, and to an ash discharging zone. A suction fan is provided at the initial windbox to downdraft an oxygen-containing fuel to the bed at an ignition zone closely adjacent said charging zone. The remainder of the bed is subjected to updrafting for firing the bed to reduce it to ash.

Abstract: A fixed sulfur fuel is produced by proportioning sulfur-bearing coal and limestone in amounts which will cause the calcium in the limestone to react with a large amount of sulfur in the coal. The proportioned mixture is ground and blended and then balled or compacted to form pellets. By means of either a carbonizing or pyrolyzing technique conducted in a traveling grate machine, where the pellets are heated to at least 800.degree. F., the coal is pyrolyzed or carbonized, the limestone is calcined, and the sulfur is fixed in a calcium compound which remains stable in the ash after the pellets are burned as a fuel.