Abstract: A gravitational protractor and measuring tape for determining the distance between respective conduit ends residing at differential elevations.

Abstract: The invention relates to a simple mechanical system to effect removal, reduction or change in composition of boundary layered atmosphere associated with web passage around a heat transfer roll. In effect, the purpose of the invention is to eliminate the layer of air between the web and the heat transfer roll, or to eliminate as much air as possible so that better and more intimate contact is achieved between the web and the heat transfer roll, or to change the pressure and composition of the atmosphere, thus assuring higher efficiency of heat transfer from the roll to the web. The mechanical structure can involve a squeeze roll positioned between the heat transfer roll, squeezing the boundary layer of air attached to the web out prior to web contact to the heat transfer roll. In addition, the squeeze roll could utilize some type of vacuum associated with it.

Abstract: A steam heated cylindrical dryer drum for continuously drying a traveling paper web in a papermaking machine wherein steam is supplied to the inner cavity of the drum and the shell of the drum has a plurality of circumferential grooves with axially extending rectangular collectors and tubes projecting tangentially from the collectors of resiliently deflectable material biased outwardly toward the shell of the drum with positioning lugs on the free ends of the tubes resting on the ribs to fix their position in the base of the grooves.

Abstract: A flexible shoe insole consisting of strips of narrow bands of wood spaced from each other and fixed to a pliable underlying support. The strips are oriented with the length of the strip being transverse to the longitudinal axis of the foot and the operative connection to the pliable underlying substrate allows flexure of the insole for beneficial support while the choice of materials associated with the insole allows aspiration of the foot as well as thermal protection.

Abstract: A shoe with an adjustable strap fastening mechanism having a pull strap which is secured at one end to the insole of the shoe and disposed in wrap-around fashion about a wearer's foot from one side over the instep and the dorsum of the foot to the opposite side, and then beneath the wearer's foot through the structure of the shoe to a hook and pile fastening assembly. The pull strap may be pulled, and thereby cinched about the wearer's foot, to a desired comfortable tautness which is adjustable, which secures the shoe to the wearer's foot and which provides adjustable arch support.

Abstract: The device comprises an adjusting element having a variable working length and being associated, at the ends thereof, with two separate and mutually movable points on a boot, the adjusting element including a cylindrical body on the interior whereof a piston is slidably mounted which acts on a fluid and a valve controlling the passage opening of the fluid for varying the elastic bias developed by the adjusting element as it is adjusted in one direction independently from the bias applied during an adjustment in the opposite direction.

Abstract: A backhoe bucket especially adapted for use in rock strata such as caliche, limestone and soapstone and plastic soils includes a shovel-nose configuration having a plurality of spaced-apart teeth symmetrically arranged along upwardly and rearwardly inclined leading edges of the angled bucket sidewalls. The sidewalls of the bucket to which the teeth are attached intersect a flat, horizontal bottom having a width substantially equal to the width of the tooth mounted thereto. The teeth are arranged in a symmetrical stair-step configuration with each tooth being above and behind an adjacent tooth closer to the center of the bucket. The teeth first fracture, then separate and guide material into the bucket. The rear wall of the bucket is a complex, curved panel which defines an internal volume shaped to receive and readily discharge spoil.

Abstract: A digging tooth is removably received within a tooth receiving holder. The holder is attached to a digging apparatus, such as a trencher machine, for example. The holder includes a socket within which a shank of the tooth is removably received. The socket of the holder is in the form of an outwardly opening, elongated cavity which rearwardly tapers so that the cavity is progressively reduced in size. The tooth shank is rearwardly tapered and made complementary respective to the socket cavity, so that when the shank is telescopingly forced into the cavity, it is wedgedly held in assembled relationship and is easily removed therefrom, and the teeth therefore can subsequently be rapidly and easily replaced.

Abstract: A hand control system for a motorized implement such as a snowblower, lawn mower or tiller having a U-shaped handle in which a pair of control levers and a U-shaped bail are pivotally mounted on the handle such that the control levers can be pivoted independently or conjointly by the bail from a first, at-rest, inoperative position distal from the handle to a second, operative position proximate to the handle. The bail co-operates with the control levers to permit sequential activation of one control lever before the other for improved operation of the implement, permits one-handed control of the implement from various positions on the implement handle, and at all times maintains the safety feature of a "deadman" control.

Abstract: A safety device for cooperation with the internal safety mechanism of a firearm to provide an audible signal to the shooter when the safety is off and the weapon is ready to fire. A main body member located adjacent the firearm trigger guard at the location of the conventional safety defines a chamber within which an alarm system is housed including a power source as well as signal generating means. A switch closing member is disposed so as to contact the trigger guard when the safety is off to close a signal generating circuit of the alarm. The alarm system is of modular construction for removable disposition within the main body chamber.

Abstract: A fishing rod holder having an improved latch release mechanism is the subject of the present invention. A stake is insertable into the ground and mounts a rigid bracket which in turn mounts two pivotal arms. A socket which receives the end of a fishing rod is mounted on the pivotal arms and is held in place by a latch which is likewise pivotal. A camming mechanism is mounted on the socket so that any downward movement of the socket will result in an upward camming movement of the camming means which releases the latching mechanism. A first spring means biases the latch into engagement with a latch plate and is adjustable for rods of different weight and different fish. A second yieldable means is provided for biasing the socket upwardly after the latch disengages the latch plate.

Abstract: A fishing lure is disclosed having a V-shaped spring wire with two legs diverging rearwardly from an apex connectible to a fishing line. A trigger member and a sleeve are slidably mounted on one of the legs. A fishing hook is carried by the other of the legs. The trigger member has a looped catch portion releasably engageable with the rear end of the other leg to hold it in a "latched" position. The legs are resiliently compressible and can be squeezed together providing a contracted profile enabling the lure to be taken easily by a fish. When the fish takes the lure, the sleeve moves the trigger member from its latched position to a "released" position disengaging the other leg and enabling it to spring outwardly with the hook. Optionally, weed guard shield members in any suitable shape such as simulated butterfly wings, may be supported on the sleeve to protect the fishing hook.

Abstract: This disclosure relates to Japanese beetle traps, preferably made from a throw away type two liter plastic bottle, with inwardly curved baffles providing an inner flange with holes to permit a scent to escape to lure the beetles and with additional flanges to prevent flight out of the trap. A plastic bag may be secured to the lower end of the trap or if desired a quart jar may be mounted at the lower end of the trap.

Abstract: A motorized toy vehicle actuated by liquid such as water is provided. The toy vehicle includes a frame having wheels rotatably supported thereon and a motor operatively coupled to the wheels for rotating the wheels. A reservoir having a float disposed therein is supported on the toy vehicle frame. A switch selectively actuated by the float is coupled to the motor. When a predetermined amount of liquid is present in the reservoir, the float will actuate the switch thereby turning on the motor.

Abstract: A toy doll stroller and ferris wheel has a pair of substantially A-shaped frame members with a U-shaped handle extending from and joining the frame members. Spaced side wheels mounted on a hollow axle are journaled for rotation between the apexes and carry three pivotally depending doll seats spaced about their periphery. Free wheeling front ground wheels are mounted on an axle extending between the forward angled legs of the frame members. Each of a pair of rear ground wheels is mounted on a stub shaft carried by the rearward angled frame leg on a common axis and is in driving engagement with a respective side wheel. The rearward angled legs are connected together by a U-shaped bracket of resilient material pivotally attached below the axis of the stub shafts. The bracket is movable between a first unobstructing position and a second stand position that spaces the rear wheels from the ground.

Abstract: A puppet or doll having a plurality of articulated limbs and a pistol grip attached to the puppet body for selectively activating the limbs. The limbs are pivotally connected to the puppet body and the grip includes openings therein for insertion of one's fingers and trigger assemblies actuable from the openings connected to the limbs by strings for activating the same.

Abstract: Plants are supported, positioned, and transported in a hydroponic growing system by notched spacer bars riding on wheeled rails and interlocking with external ribs on elongated troughs in which the plants are grown. The apparatus permits easy and efficient movement of large arrays of plants by one worker, while maintaining the troughs in precise parallel relation to one another. The apparatus also provides automatic locating of the troughs with individual liquid nutrient feed points and alignment with a spent nutrient collecting system. Plant spacing in troughs transferred from one growing stage to the next is increased by alternating filled troughs with empty troughs on the spacer bars and transferring alternate plants from a filled trough to an adjacent empty trough.

Abstract: The device comprises a guide rail (1) having a cross-section in the general shape of a C and fixed to a wall (M) and defining two guide surfaces (8, 9). One of the guide surfaces (8) has a notch (2) with which cooperates at least one roller (G.sub.1) or other rolling or sliding element carried by the door support means (13). The other guide surface cooperates with at least one roller (G.sub.2) or other rolling or sliding element carried by a pivotal arm (21) connected to the door (P). The or each pivotal arm is disposed completely within the rail (1) and operates under compressive stress.

Abstract: A wooden door sill has an inclined tread portion rising to a threshold which lies beneath the door when the latter is closed. The threshold has a longitudinal upwardly-open groove containing a strip. In order to provide an adjustable fit of the strip against the under edge of the door, the strip is screwed down against a resilient compressible filler strip in the bottom of the groove.

Abstract: An apparatus is presented which will automatically lap involute and strai internal or external gear splines. Lapping force is applied alternatively to the left and right side of each tooth flank. Automatic indexing to new radial positions about the circumference of a gear after any preselected number of lapping cycles accomplishes the application of equal lapping forces to each tooth.The apparatus comprises a bed or support frame upon which is mounted a headstock assembly and a tailstock assembly. Mating workpieces, e.g., mating involute or straight internal or external gear splines, are fastened through collets to the mechanisms of the headstock and tailstock assemblies. The tailstock assembly includes a mainshaft attached to the collet holding its workpiece. The mainshaft is driven by a pneumatic piston to reciprocate along the axis of the workpiece causing the workpieces to lap one another.

Abstract: A link and flight assembly for a blast chamber conveyor is disclosed. The assembly includes a flight having a first surface formed of blast resistant materials, such as manganese. The flight is T-shaped in cross-section and is connected to the link by a mounting arm secured to the portion of the flight which is not subjected to blasting. This permits the use of inexpensive materials to join the link to the flight bar.

Abstract: A dressing method has been devised for plated grinding wheels having relatively coarse mesh microcrystalline cubic boron nitride abrasive. The method comprises lightly grinding cemented metal carbide (e.g. cobalt cemented tungsten carbide) with the grinding wheel before grinding the intended workiece. Wheels dressed in this manner have been found to obtain good surface finishes (16-18 RMS) while maintaining a free cutting aggressive action which gives high grinding rates.

Abstract: A precast concrete structural unit is provided including a concrete sub-unit and a plastic resinous sheet. The sheet is adhered to the sub-unit at the time of pouring the concrete, utilizing a polychloroprene contact adhesive. The structural unit may further include adhesive coated reinforcement. Among the concrete structural units which are provided is a burial vault including concrete wall portions and a plastic resinous liner. The liner is adhered to the wall portions, at the time of pouring the concrete, utilizing the polychloroprene contact adhesive. The vault may also include adhesive coated reinforcement. The polychloroprene contact adhesive is essentially a blended aqueous latex comprising hydrophilic chloroprene copolymer latex particles and emulsified or dispersed hydrocarbon resin tackifier particles.

Abstract: A roofing panel system including a plurality of elongated panels disposed in side-by-side parallel array on a supporting roof structure, each panel having an upwardly projecting longitudinal flange along each side with the flanges of adjacent panels together constituting a standing seam at the junction of the panels. A plurality of clips, fastened to the roof structure along each standing seam and interposed between the adjacent panel flanges constituting that seam, engage the tops of the adjacent panel flanges to anchor the panels to the roof structure and also support the adjacent panels from below. Each standing seam is covered by an elongated cap member snap-fitted over the tops of the adjacent panel flanges and bearing sealant material which engages the tops of the latter flanges to seal the seam. The top portion of each panel flange is bent toward the other flange of the panel to form a leg, over which the cap member extends, having a flat upwardly facing surface for contact with the sealant material.

Abstract: The present invention establishes an insulation cavity by connecting rail tracks to the roofing panels, slidably engaging adjustable suspension clips within said tracks, and connecting ceiling panels to the depending end of the suspension clips. The suspension clips are slidable within these track connections to allow the relative displacement between the roof and the depending ceiling. This freedom allows flexability in the alignment of the ceiling panels in relation to the roofing panels and thereby simplifies installation procedures. Further, the deliberate thermal isolation of the connected roof and ceiling panels promotes the relative displacement therebetween due to thermal expansion and this displacement translates to potentially damaging strain within the roofing system in the absence of the freedom provided by the clip to track engagement.

Abstract: A membrane anchor system including a body made of resilient metal comprising a central region with an opening therein, a downwardly sloping region and a peripheral region outwardly of the downwardly sloping region; the downwardly sloping region has radially extending upwardly convex regions therein to resist upward flexure. A linear fastener extends through the body and through the membrane, and mastic is placed between the body and the membrane.

Abstract: An improved simulated tile roofing panel is disclosed. The panel comprises a background sheet of relatively thin material, such as ABS in which are integrally formed one or more raised elongated tile segments, disposed in a substantially parallel spaced relationship. Each decorative element are formed for cooperative engagement with a clip member for securing the front edge of one panel to the rear edge of an adjacent panel. Alternate embodiments of the clip member and of the form of the ends of the decorative element are disclosed.

Abstract: A joist girder construction includes connecting ties which connect adjacent ends of joist girders at a point where they are supported. The ties include a non-welded zone to afford plastic elongation of the tie. The ties create an axial connection force between the top chords to reduce the force a load causes within the joist girder to thus reduce the size of the upper and lower joist chords to minimize overall weight and expense.

Abstract: A structure is formed with a beam, floor and ceiling joists, studs, top and bottom plates, rafters and headers consisting of composite wooden members. The composite wood members include aligned pairs of elongated pieces, each piece including a narrow face, a wide face and a pair of radial faces. The faces extend longitudinally in relation to the piece. The pieces are bonded together at their narrow faces between the wide faces. The transverse cross-sectional geometry of each piece comprises a trapezoid with an apex side at the narrow face, a base side at the wide face and a pair of radial sides; each radial side being associated with a respective radial face. The members may be formed with pairs of tapered pieces oriented in opposite relation with respect to each other.

Abstract: Apparatus for filling cartons having three upstanding side walls and a horizontal side wall with stacks of paper sheets has a horizontal conveyor reciprocable into and from a carton while the carton is held at a filling station, a system for delivering stacks to that portion of the conveyor which enters a carton at the filling station, and a locating device installed at a level above the path of movement of stacks with the conveyor portion and having an indexible horizontal shaft for two fingers which are disposed opposite each other, and an indexing mechanism for the shaft. The shaft is indexed to a first position in which one finger extends into the path of movement of an oncoming stack during delivery of the stack onto the conveyor, thereupon throuh 90.degree. to ensure that the fingers cannot interfere with introduction of the stack into the carton, and again through 90.degree.

Abstract: The packaging of plural articles in a common wrapper is accomplished with the aid of wrapping mandrels into which preformed blocks of the articles are loaded. The wrapping mandrels have movable slides which define the effective length of the mandrels and thus insure that first ends of the articles will lie in the plane of the insertion end of the mandrels, the first ends of the articles thus defining a stable base over which a wrapping may be folded. The slides are reciprocated in the mandrels to eject packages, open at one end, to a device for closing the open end.

Abstract: A mowing machine has a main frame made up of driving units and intermediate pieces which are mounted alternately on a tie member. The tie member is normally under tension to compress the driving units and the intermediate pieces together to make the main frame substantially rigid. The tie member is positioned substantially centrally of the driving units and the intermediate pieces so as to provide even loading of their mating faces. The driving units preferably having cutting units with flexible hoods. The cutting units are driven by a common drive shaft through bevel gearing and the direction of rotation of each cutting unit can be changed by removing the gear and replacing it the other way round on the driving shaft.

Abstract: A corn pickup attachment for a combine is provided wherein the combine is adapted to be propelled along the ground and there is provided a unique and highly efficient framework together with a novel means for gathering corn and the like that has fallen to the ground. A hydraulic motor is provided for driving a shaft which operates a plurality of chains that carry pickup fingers that are positioned above the usual pickup snouts of the corn pickup attachment for a combine.

Abstract: A lawn debris collection system includes a collection box coupled to the outlet of a lawn mower by duct work including an assist blower. The box is mounted for tilting about a pivotal connection between the bottom of the box and a support frame carried at the rear of a vehicle carrying the mower. A manually operable linkage is mounted on the box for selectively releasing a box and door latch members, which respectively hold the box in an upright fill position and the door closed, when it is desired to tilt the box rearwardly to a dump position.

Abstract: A tobacco combine comprising a frame operable to be moved along a row of tobacco plants in a tobacco field, a pair of cooperating power driven mechanical tobacco defoliating units mounted on the frame for (1) movement therewith along the row of tobacco plants on opposite sides of a predetermined vertical extent of the stalks of the tobacco plants for removing tobacco leaves attached to the portion of the stalks within the predetermined vertical extent and (2) vertical movements with respect to the frame within (a) an operative range for varying the predetermined vertical extent of the stalks and (b) above the operating range for clearance purposes, a power driven longitudinal conveyor assembly disposed laterally outwardly from each defoliating unit for receiving leaves directed laterally thereby and moving the same rearwardly, a manually adjustable strut assembly for supporting the forward end of each longitudinal conveyor from the frame against a downward movement below a selected position of adjustment but

Abstract: A conveying tool comprises a funnel-shaped hopper and a tubular conveying part connected to the bottom of and hanging downward from the hopper, the conveying part comprising one unit section or a plurality of unit sections detachably connected end-to-end, each unit section comprising a pair of opposed and spaced-apart, rectangular main sheets and a pair of opposed rectangular side sheets with vertical edges secured to respective vertical edges of the main sheets thereby to form a tubular structure. The main sheets possess elasticity and flexibility and have, on the inner surfaces thereof, a large number of elastic projecting members, and the side sheets possess flexibility and are more pliable than the main sheets. Picked fruit dropped into the hopper are braked in their descent by the elastic projecting members and the inner wall surface of the conveying part and are thereby slowly lowered without damage to a container on the ground or on a vehicle.

Abstract: Device for the partial straightening and parallelizing of fibers of a thread or thread end, including a turbine being drivable by compressed gas, the turbine including a rotor being accessible from outside the turbine, the rotor having a central opening formed therein being coaxial with the axis of rotation of the rotor for receiving a thread or thread end.

Abstract: An air nozzle utilized for false-twisting a fiber bundle to form a fasciated yarn, comprising, in series, an inlet and a fiber passage provided with at least a jet for generating a vortex within the fiber passage. The inlet has an opening of a flattened shape having upper and lower walls longer than the side walls thereof and has a size decreasing toward the fiber passage. The edge portion of the ribbon-like fiber bundle passing through the air nozzle strongly contacts the upper and lower walls of the inlet during the twisting operation by the vortex. As a result of frictional resistance with the walls, the twist angle of the edge portion fibers becomes less than that of the core portion fibers. This causes a tightly fasciated effect of the edge portion fibers onto the core portion fibers during the untwisting operation.

Abstract: A resilient clip selectively engaging portions of a loop type shackle, and the removable locking pin therefor to prevent accidental disengagement through loosening of the pin. The clip may be engaged and disengaged without the use of tools, and may be temporarily resiliently attached to the body of the shackle when not in use. The clip includes first and second clip members interconnected at substantially a right angle by a medially positioned neck portion.

Abstract: A reheat pressurized fluidized bed combustor system for an electric power plant includes an HP turbine which drives a compressor. Compressed clean air is directed through a combustor bed heat exchanger where it is heated to 1500.degree. F. and then directed to the HP turbine inlet. After HP turbine expansion, the clean exhaust air is cooled to about 1100.degree. F. and partly directed to the combustor bed for reheating and for bed fluidization and combustor support and partly bypassed around the combustor bed. Coal is burned in the combustor bed to heat the combustor outlet gases to 1600.degree. F. which are directed to a cleanup system and then mixed with the bypass flow portion. The mixed flow is supplied to a low pressure turbine at a turbine inlet temperature of 1300.degree. F. at which alkali matter is solidified and then exhausted to one or more heat recovery devices.

Abstract: An acceleration limiter is disclosed which includes a hydraulic accumulator (10) with a piston (10a), a spring, (10d) and a chamber 10b) for receiving the pressure Pi residing in the fuel supply circuit (3) from a point P1 in the supply circuit (3) located upstream from the injectors (2). Another chamber (10c) of the accumulator (10) is connected by a tube (11) to the outlet of the compressor (1a). This limiter makes it possible to absorb peaks in fuel flow resulting from sharp maneuvers on the throttle level with the same effectiveness despite variations in Pi, in particular with the altitude of the airplane.

Abstract: Herein disclosed is a secondary air supply control device for use with an apparatus for purifying an exhaust gas of an internal combustion engine. In the exhaust gas purifying apparatus, a secondary air supply system is made to communicate with the exhaust system of the internal combustion engine so that secondary air may be supplied during the running operation of the internal combustion engine to said exhaust system thereby to oxidize and clear the unburned noxious content of said exhaust system. The secondary air supply control device comprises a vacuum-operated secondary air control valve which is disposed midway of said secondary air supply system for controlling the flow rate of the secondary air to be supplied to said exhaust system; and means for controlling said vacuum-operated secondary air control valve during the deceleration and the choking operation at the start of said engine so that the supply of the secondary air to said exhaust system is interrupted.

Abstract: An hydraulic supply circuit for a vehicle power steering system of the type having a steering actuator and control valve therefor with hydraulic input, sump and overflow (by-pass) connections and in which any fluid not actually consumed by the actuator is diverted to the overflow connection. A positive displacement pump is provided having an output line connected to the input connection of the steering system. An accumulator having a charging line and a discharging line is used to supply fluid pressure in lieu of the pump. To control flow of fluid to and from the accumulator a charge-discharge valve is provided having charge and discharge modes. In the charge mode the accumulator is charged by the overflow and in the discharge mode pressure fluid is supplied from the accumulator to the input connection for maintaining the steering system in operation while blocking the overflow.

Abstract: The control mechanism is for pneumatic apparatus of the kind comprising a piston-and-cylinder motor coupled between two relatively-movable parts (such as door-leaves) for driving them, when energized, to a predetermined relative position. A pilot valve is actuated when required to switch the apparatus to an emergency mode by isolating the motor from its power source and discharging it into an emergency reservoir having a volume large compared with the maximum volume of gas in the motor. While the pilot valve is actuated, the relatively-movable parts are urged towards their predetermined relative positions by a force small compared with the normal operating force. The pilot valve may be arranged to operate operation of an emergency release bolt, on obstruction detected by a detector valve (in which case a timing reservoir provides time delay before full power is restored), on power failure, or as required.

Abstract: A hydraulic drive system for civil engineering and construction machinery having at least one hydraulic pump driven by a prime mover, at least one hydraulic actuator connected to the hydraulic pump, and at least one hydraulic cylinder, the hydraulic actuator and hydraulic cylinder being adapted to operate movable members. The hydraulic drive system is provided with a hydraulic pump-motor coupled to the prime mover, a first conduit for connecting the hydraulic pump-motor to one side of the hydraulic cylinder which moves a movable member in a direction in which the potential energy thereof increases in magnitude upon feeding of liquid under pressure thereinto, a second conduit for connecting the other side of the hydraulic cylinder to a reservoir, and an arrangement for controlling the hydraulic pump-motor in such a manner that it functions as a motor when the operator operates the system to move the movable member in a direction in which the potential energy thereof is reduced in magnitude.

Abstract: A pressure override control which utilizes pump output flow for destroking of a variable displacement pump to minimize loss of power and generation of heat and which includes modifications to the displacement control valve for the pump and, particularly, the cross connection of displacement-controlling servo motors when the displacement control valve is in a neutral position with blocking of communication of said servo motors to a displacement control pressure and drain whereby the pump cannot be positioned in a maximum displacement position in response to certain system malfunctions in the power override control circuitry.

Abstract: A four piston hydraulic pump driven by a four cylinder free-piston Stirling engine has four stepped pistons operating out of phase in pairs. The hydraulic fluid pumped between the hydraulic cylinder can be tapped for hydraulic power. The stepped pistons give the option of utilizing low flow/high pressure, or high flow/low pressure. The non-utilized flow ensures that the timing between pistons will always remain correct. Since the arrangement is symmetrical, it remains balanced.

Abstract: A pneumatically controlled altitude compensating boost control for maintaining a constant intake manifold pressure on a turbocharged engine having a wastegate valve for selectively bypassing engine exhaust gas around the turbine. The altitude compensating boost control comprises an altitude compensating bleed valve means which varies the compressor outlet pressure in the control in response to the change in ambient pressure and a wastegate actuator which is responsive to the ambient pressure and the varied compressor outlet pressure.

Abstract: A process for the energy efficient conduct of a multi-stage water gas shift reaction includes furnishing a carbon monoxide-containing feed gas stream at an inlet temperature of at least 600.degree. F. and water to a high-temperature shift reactor stage to produce a carbon dioxide and hydrogen enriched exhaust gas stream and introducing the exhaust gas stream to a low-temperature shift reactor stage at an inlet temperature of about 300.degree.-500.degree. F. to produce a product gas stream further enriched in carbon dioxide and hydrogen. A heat exchange fluid is passed in heat exchange relationship with at least the feed and exhaust gas streams to recover thermal energy therefrom by concurrently cooling the gas streams and heating the heat exchange fluid.

Abstract: A process for condensing exhaust vapor comprises alternating modes of operation. In the first mode, the exhaust vapor contacts solid particles at a first temperature below the condensation temperature of the vapor and, simultaneously, solid particles at a second temperature above the first temperature are cooled to the first temperature. In the second mode, the exhaust vapor contacts the solid particles that were cooled in the first mode and, simultaneously, solid particles that were heated in the first mode are cooled to the first temperature. This cycle repeats continuously.