Abstract: The invention concerns a process for the preparation of demineralized coal, comprising the steps of:(a) forming a slurry of coal particles, preferably at least 50% by weight of which particles have a maximum dimension of at least 0.5 mm, with an aqueous solution of an alkali, which solution has an alkali content of from 5 to 30% by weight, such that the slurry has an alkali solution to coal ratio on a weight basis of at least 1:1;(b) maintaining the slurry at a temperature of from 150.degree. to 300.degree. C., preferably 170.degree. C. to 230.degree. C., for a period of from 2 to 20 minutes substantially under autogenous hydrothermal pressure and rapidly cooling the slurry to a temperature of less than 100.degree. C.

Abstract: A receptacle for the transport, storage and display of horticultural articles includes a base, an inner receptacle, an insert element, a side element, and a cover element. The inner receptacle is slidable within the base and the insert element is slidably encompassed by the inner receptacle. The side element is telescopically slidable over the inner receptacle and the cover element slidably fits over the side element. The insert element may have a hydrophillic lining to maintain moisture and humidity. The receptacle functions as a display vase when the side element and the cover element are removed.

Abstract: A method of reducing the amount of gaseous sulfur compounds released during combustion of sulfur-containing fuel, comprising the steps of: (a) preparing a mixture of sulfur containing particulate fuel and a sulfur absorbent, such as calcium oxide, calcium hydroxide, calcium carbonate, lime, limestone, dolomite, or mixtures thereof; (b) exposing the mixture to a reducing atmosphere at a temperature of at least about 1500.degree. F., so as to convert at least a portion of the particulate fuel into a gaseous portion and a solid, char portion; and (c) combusting the char portion, thereby forming an ash containing sulfur fixed therein.

Abstract: The present invention is in a swivel shutter that incorporates louvers that are pivotally mounted in a rectangular frame that is formed by joining, at their ends, top and bottom rails with left and right stiles. The louver pivotal mounting includes fixed and retracting conical shaped pivots that are individually fitted as aligned pairs or are arranged as bars of joined pivot sections into appropriate holes or slots in the left and right stiles. The individual pivots are for fitting into conical shaped holes that are formed in louver ends, the pivot of each retracting pivot to retract against a spring biasing into and below the level of the stile side, allowing a louver end hole to be aligned therewith. The invention further includes a tilt rod for mounting across aligned louver ends to simultaneously pivot the louvers between open and closed attitudes and a system for applying, to each louver faces, a section or sections of a flexible material as a veneer.

Abstract: An airtight door of the type including at least one sliding panel mounted in a guide track and supported by a plurality of rollers and sealed by a seal structure and provided with a heat wire, tape or strip to establish a frost free seal. The structure disclosed is adapted for use in a door as illustrated and also is adapted for use in sliding windows or similar closures.

Abstract: A mobile desk apparatus is set forth for use in inclement environmental conditions including horizontal legs spaced at one hundred twenty degrees relative to one another integrally and orthogonally secured to a central telescoping mass structure. An internal tube of the mast structure is fixedly mounted relative to an external tube by use of a friction lock directed through the external tube to impose upon an exterior surface of the internal tube. The desk portion includes a plurality of spaced "L" shaped brackets positioned on either side of the internal tube with arcuate slots directed therethrough to enable angular orientation of the desk relative to the mast structure. A transparent, polymeric cover is pivotally mounted to overlie the desk structure with a rear flange hingedly mounted adjacent a rear bottom edge of the desk and removably relative to the desk to present a selective writing surface or its removal enabling convenient access to interior contents of the desk.

Abstract: In order to eliminate the need, during operation, to continually redefine the grinding line (SL 2) between the trimming wheel (12) and the gripping wheel (10), and the need to re-zero the C-axis after each trimming step by the grinding wheel (12) on the grinding wheel (10) in a grinding machine, a trimming wheel (12) with a separate drive (11) is mounted directly on the turning slide (1) instead of on the rotary table (2) of the grinding machine. The said grinding line (SL 2) is thus not displaced when the C-axis is zeroed, but rather is held in a defined position with respect to the longitudinal axis (Z-axis) and to the B-axis perpendicular thereto of the grinding machine. To enable the quality and precision of the trimming to be increased, a trimming wheel (12) is employed which can be mounted on a conical receiving piece which is in turn mounted on a shaft having two bearings.

Abstract: A grinding apparatus comprising: the frame (1) being composed of a pair of supports (3) standing in opposing relation to each other and a support frame (4) which is stretched between and secured to the respective upper end portions of the supports (3); first moving structure (16) provided on the support frame (4) in such a manner that the first moving structure (16) is reciprocatable in one horizontal direction; second moving structure (21) provided on the first moving structure (16) in such a manner that the second moving structure (21) is reciprocatable in a horizontal direction which intersects the direction of movement of the first moving structure (16) at right angles; third moving structure (37) provided on the second moving structure (21) in such a manner that the third moving structure (37) is reciprocatively movable in the vertical direction; and a wheel head (48) provided on the third moving structure (37).

Abstract: This invention relates to a lawn mower blade sharpener apparatus readily attachable to a bench grinder assembly having a rotating grinder wheel to sharpen an edge portion on a lawn mower blade. The lawn mower blade sharpener apparatus includes (1) a stationary grinder attachment assembly being clamped to an object support assembly on the bench grinder assembly; and (2) a pair of movable blade attachment assemblies, each connectable to an outer opposite end of the lawn mower blade. Each movable blade attachment assembly is provided with a main support rod engagable with the stationary grinder attachment assembly and having a plurality of blade connector clamps secured to an outer blade section of the lawn mower blade.

Abstract: An improved of processing a tire on a uniformity machine comprising the steps of sensing the radial force variations in a tire and generating a composite waveform corresponding to the sensed force variations, converting the composite waveform into a special function waveform selected from the class of waveforms which includes filtered partial square waves, partial sine waves and full sine waves, selecting either from a table or adaptively one of the special function waveforms and grinding of the tire in response to the selected special function waveform.

Abstract: A spring file comprises a coiled spring, the outer flattened periphery of which is coated with abrasive particles so as to form a file face and the method of manufacturing the same. In a first arrangement of the spring file, the coiled spring has the file face coated with the abrasive particles and is joined to the tip of a hand grip. In a second arrangement, the coiled spring has the file face coated with the abrasive particles and is of considerable length and thus used portions thereof can be removed by cutting off.

Abstract: An ophthalmic lens centering and mounting device includes a base which receives and centers the ophthalmic lens. A support receives a holding and securing device for the lens in a removable way and is carried by an arm mounted to swing on the base to apply the holding and securing device to the ophthalmic lens. A barrel mounted to rotate on the arm carries the support. A template support carried by the barrel receives in a removable way a template that has to be superposed on the lens before the holding and securing device is placed on the lens.

Abstract: The present invention is based upon the performance of abrasive flow machining through pump casings and, more particularly, through volute casings whereby the internal surface friction of the casing is substantially reduced to consistently effect a minimal internal friction, operation after operation, and whereby the industry standards for internal friction values for pumps may be established.

Abstract: A precision hone is set forth particularly for use in the honing of relatively small diameter bores, wherein a main body telescopingly receives therein a sleeve insert secured at its upper end to a tension release spring. A plurality of diametrically opposed and aligned tension pins are directed through the sleeve insert and imposed upon an upper surface of a wedge holder that rotatably receives within a securement boss a bifurcated latch plate integrally secured to a depth wedge that is reciprocatably mounted by means of rotation of a micrometer thimble rotatably secured to the wedge holder and the micrometer sleeve to reciprocate the depth wedge and radially adjust a honing stone relative to an associated mandrel.

Abstract: An abrasive swivel assembly for providing a rotating, particle-laden fluid stream and, ultimately, a rotating particle-laden fluid jet is disclosed herein. This assembly includes a tubular arrangement for providing a particle-free stream of fluid, a swivel assembly for rotating a section of the tubular arrangement, and a tubular end section for introducing solid particles into the particle-free fluid stream at a point along the rotating tubular section, whereby to produce a particle-laden fluid stream. This last-mentioned stream can then be used in combination with a cooperating nozzle arrangement for providing a rotating particle-laden fluid jet. In an actual working embodiment, the fluid stream is of sufficiently high pressure so that the abrasive jet can be used as a cutting jet.

Abstract: A system for controlling a flexible roof assembly of the type used to cover large structures determines the actual variable height of one or more sections of the roof assembly with respect to a fixed reference point and regulates the apparatus for elevating the roof assembly to accurately control the position of the roof assembly. The system includes a signal generator for generating a signal corresponding to the actual height to indicate a change in height of the roof assembly. The system may also include an apparatus for detecting the presence of either ice or snow in an area of an outer surface of the roof assembly. The detecting apparatus includes a collecting device that is oriented to collect snow and ice that is accumulating and a sensor unit directed toward the collecting device to detect an accumulation of ice or snow that reaches a specified depth.

Abstract: A gutter and screen organization is set forth utilizing an elongate gutter defining a channel therewithin provided with a forward wall with an inwardly directed flange and an opposed rear wall with a forwardly directed flange wherein the forward and rearward flanges are directed interiorly of the gutter. A series of forward tabs are formed through the forward and flange hingedly secured to the flange at a rearwardmost end of the tabs with a forward arcuate nose of each tab minimizing harm to a user of the device. A mesh screen of a width substantially equal to that defined between the forward and rear walls overlies the flanges to enable penetration of the forward tabs through openings of the screen. Optionally, tabs are formed on the rear flange to further assist in securement of the screen to the gutter. A modification of the instant invention utilizes a deformable spherical tip formed to a stem to receive the mesh screen thereon.

Abstract: An apparatus (26) is disclosed which assists in tying a foundation reinforcing bar (18) to a reinforcing bar (24) extending through a wall of cinder blocks (12) after the wall has been constructed. The apparatus includes a low cost carrier (28) which is placed atop a block as the wall is constructed at the position where the reinforcing bars are to be tied together. The carrier carries a cable tie (40) in an open loop with the ends of the tie extending out of the wall. When the reinforcing bars are to be tied together, the ends of the cable tie are simply pulled to disengage the tie from the carrier and closed the loop about the reinforcing bars. Cement is then poured into the open cells of the wall and around the reinforcing bar. The exposed ends of the cable tie can be simply cut off and mortar used to fill the small hole through which they pass.

Abstract: A flange for photovoltaic module frames is disclosed comprising water drainage channels formed by two overlapping flanges, antiwicking grooves in two other overlapping flanges, with nailing slots in the flanges.

Abstract: A fireproof panel for closing structural openings within building structures such as those between rooms, floors, ceilings, and the like through which essential-service hardware such as ducts, pipes, electrical conduit, and the like penetrates, or for providing support for such hardware. The panel comprises a solid matrix of refractory material having reinforcement material embedded therein. Preferably, the reinforcement material is embedded immediately beneath essentially all of at least one of the panel's front and back exterior surfaces. A preferred reinforcement material is a fiberglass material, preferably embedded immediately beneath both the front and back exterior surfaces of the panel. The reinforcement material inhibits fracture of the panel to thereby provide a greater workability in panel installation. The panel can be flat or shaped in accord with its intended function, and openings therethrough to accommodate penetrating hardware can be readily made.

Abstract: The present invention relates to an attachment system for forming a substantially planar wall structure, intermediate and end connectors to be used in the system, and a method of assembling the system to form the desired wall structure. The intermediate connector joins adjacent ones of the wall panels and comprises two panel retention members in an overlapping relationship. Each panel retention member has a base portion, a web portion, and two substantially parallel, non-coextensive, integral flanges defining a recess for receiving an edge portion of a wall panel.

Abstract: The connecting element (1) has a flat head (2) with an inside hexagon (3), a shaft (7, 8) and two studs (5, 6). The two studs (5, 6) are offset against one another through 90.degree.. The first stud (5) molded on the free shaft end is shorter than the second stud (6). The connecting element (1) is suited especially for connecting the side wall (37) of a supply body of a room divider with vertical, tubular columns (35) of the room divider. The connecting element is very rapidly mounted. In the installed state the second stud (6) holds the side wall (37) spaced from the column (35). For this reason the supply body is somewhat shorter than the clear distance between adjacent columns (35). The supply bodies, therefore, can be installed in and removed from the room divider very simply and rapidly subsequently.

Abstract: An extendable stud having a stud body and a stud extender telescopically engaged with the bottom of the stud body, in which the stud extender bottom end has an interlocking slot, engageable with an upwardly extending enlarged elongate head on a floor track, which becomes locked to the enlarged head by raising the stud from an angled engaging position to a vertical locked position, whereat the stud body can be easily moved upwardly, into a ceiling channel, forming an elongated stud.

Abstract: Tubular structural elements and assemblies comprising an outer tube and a concentric inner tube connected to each outer by ribs and having very high stability. Lengthwise recessed groove spaces are provided between the ribs, covered on the outside by removable strips or sectors of the outer tube and designed to receive flat structural elements. One or more of the groove spaces, which are sealed off by the strips or sectors of the outer tube, can be exposed by removal of the covering strips or sectors so that flat structural elements such as walls or facade panels, glass panes, or the like can be inserted where desired. The tubular structural element is sealable at the ends by end caps or sealing elements, or is connectable by axial or branched coupling parts with other tubular sections connectable at various angles, to erect halls, room partitions, pavilions, or the like.

Abstract: An improved building panel. The panel includes a pair of identically formed facing sheets arranged with adjacent edges extending parallel and spaced apart to one another and an insulating core between the facing sheets to minimize the transfer of heat from one facing sheet to the other through the space therebetween. The panel further includes a channel member assembly for receiving the adjacent edges of the sheets to form a joint between the sheets. The channel member assembly includes at least one pair of opposing legs extending parallel and spaced apart to one another for interconnecting the sheets with one another and a web portion extending between interconnecting the opposing legs. The web portion includes an insulating bridge member positioned between the opposing legs adjoining the pair of facing sheets to minimize the transfer of heat from one facing sheet to the other through the web portion and defining a noncontinuous space.

Abstract: A rectangular roof covering panel made of three superposed layers: a fiberboard layer, an adhesive layer and a blended bituminen elastomer layer. The blended bitumen layer has a ledge exceeding over two adjacent sides of the rectangular panel. The ledge is adapted to overlap the elastomer layer of an adjacent and contiguous panel and to be fused thereon with a blowtorch.

Abstract: A reroofing system and method for weatherproofing the metal panels which are attached to an existing roof deck by series of fasteners. A tape laminate formed of butyl rubber and unvulcanized EPDM is applied over the series of fasteners and over the seams formed by adjacent and overlapping panels to provide a weatherproof seal therefor. The butyl rubber has sufficient natural tackiness to secure the EPDM to its top surface and to secure the bottom surface of the tape to the metal panels. The tape laminate has an elongation of approximately 600% and thus is unaffected by panel and building movements. A coating of an acrylic paint may be applied over the tape laminate and remaining surfaces of the roof panels to increase the weatherproofing effectiveness thereof and to provide an aesthetically pleasing appearance.

Abstract: A filler and sealer with an endless two directional flexing chain having carriers thereon are capable of being driven about vertical axes of a rotary filler and also about horizontal axes of end discs. Each carrier movably supports a tray supporting head which is accurately maintained in filling positions relative to rotary and reciprocating tray fillers, and is thereafter accurately maintained in position to have a lid sealed on the container. Arcuate guide shoes on each carrier ride in linear and arcuate tracks to guide the carriers. A push bar conveyor includes spacer rollers which engage each carrier and push the carriers around their paths of movement at uniform speed.

Abstract: This is a stretch bundler for use in bundling a variety of loads. A method and apparatus description defines this invention by the use of the novel film gripper mechanism used. The gripper mechanism stretches the width of a film while holding its leading edge. It then releases the film and continues the boundling operation by rotating a film dispenser thereabout and dispensing the film around the load.

Abstract: The present invention relates to the preparation of encapsulated products containing a solid dosage form prepared with up to 35% of an edible matrix material. The composition may be introduced into the capsule by injection molding or extrusion, and the resulting capsule products exhibit the favorable texture of a capsule in conjunction with the hardness, shelf stability and security of the solid formulation. The composition of the present invention may be prepared and used as a direct tableting granulation as well as the filler or core for the capsule product. A method and corresponding apparatus are likewise disclosed and contemplated herein.

Abstract: The invention relates to a method of packaging kiwifruit in packaging means formed or provided with one or more pockets therein, the method including locating at least one kiwifruit in at least one pocket, so that the longitudinal axis of the kiwifruit are substantially vertical or upright. In one form of the invention, the method uses packaging means in the form of a tray including a plurality of juxtaposed pockets, each pocket having at least one deformable nipple on the base thereof. The invention also provides packaging means for kiwifruit which include at least one pocket, the pocket being adapted to house at least one kiwifruit in a position such that the longitudinal axis thereof is substantially vertical or upright. In a preferred form of the invention, the packaging means is in the form of a tray incorporating a plurality of juxtaposed pockets. At least one pocket is provided with at least one deformable nipple on its base.

Abstract: A method of changing or replacing one liquid or semi-liquid product by another for insertion in a succession of thermoplastic receptacles bearing respective decorative and/or informative elements wherein, a minimum buffer volume is determined for a first product contained in a metering dispenser and in a buffer tank, the buffer volume corresponding to the sum of the portions of first product which remain to be inserted into the receptacles prior to the receptacles being replaced in a filling station zone by receptacles provided with different decorative elements. While the installation is in operation, a first master strip of the decorating station and/or a first strip of receptacle tops are cut transversely at distances from the filling zone which corresponds to the lengths of the first master strip and/or of the first strip of tops which will be consumed by the receptacles receiving the last portions of product from the minimum buffer volume of the first product.

Abstract: In a carton loading machine, there is provided a mechanism which will initially displace one row of cylindrical-shaped objects with respect to its adjacent row such that load items in one row are located in a staggered relationship with respect to the load items in the adjacent row. The load items are then displaced into the open end of a container. When the assembled load is substantially fully located within the container, the movement of one row is arrested while the movement of the other row continues until the items of the adjacent rows are arranged in a side-by-side relationship. This serves to permit the width of the accumulated load to be reduced until the load is substantially fully located in a carton and thereafter the load is rearranged to its maximum width to fit in a close fitting relationship within the carton.

Abstract: Interlocking panels having a pair of spaced sharp edges on one end and a pair of spaced recesses on another, opposed end are adapted for sealed connection when placed in edge-to-edge abutting contact. Each of the spaced recesses is adapted to receive a penetrable strip of sealant which is engaged and penetrated by a respective one of the sharp edges of another panel positioned in edge-to-edge abutting contact. Each panel includes a pair of spaced facings, or sheets, with an insulating core disposed therebetween, and with each facing having at one end an aforementioned sharp edge and at an opposite end an aforementioned recess. The sharp edges and recesses are displaced inward from the facing surfaces of the panel defined by the aforementioned spaced facings, with adjacent edges of abutting panels arranged in a closely spaced manner to form an internal channel, which may serve as a rain gutter, or which may be covered with a sealing batten, if desired.

Abstract: A wrapping material roll support assembly which supports the roll of wrapping material within the wrapping device and permits easy placement of the roll of wrapping material thereon. Two spaced apart parallel rollers support the roll or wrapping material by contacting the outer circumference thereof. An adjustable tension brake frictionally engages the parallel rollers which support the roll of wrapping material. By adjusting the tension provided by the brake, undesired unrolling of the free end of the roll of wrapping material can be prevented. A safety catch is received through the core of the roll of wrapping material preventing the roll from falling from the roll support assembly.

Abstract: A device for spreading of a top wrapping flm in wrapping in a wrapping machine. The wrapping machine is provided with a top film device which has a top film roll as well as devices for feeding and pulling the top film. These devices are arranged to spread the top film above the product to be packaged and to cut the top film to the specified dimension. The device is provided, as well, with a press plate which presses the product to be packaged from above, for the purpose of keeping the product to be packaged in position during the wrapping. The devices for feeding and for pulling of the top film are arranged on a frame of the wrapping machine, to be simultaneously movable in opposite directions with respect to one another. When products to be packaged are being exchanged and when the wrapping is interrupted, the feed device is arranged to pull a top film out of a top film roll substantially to a middle of the wrapping station.

Abstract: There is disclosed a shock absorbing equestrian stirrup including a generally stirrup-shaped rigid structure having a substantially horizontal tread portion with a cushion thereon, two upright side portions joined near their top ends by a support bar and further including a ring of elastomeric energy absorbing material with a diameter somewhat less than the distance between the upright side portions of the stirrup structure, the ring being secured by a bolt in a position just under the support bar. Preferably, the stirrup is provided with a keeper to retain the saddle leathers, or straps, extending down from the saddle in position looped under the elastomeric ring.

Abstract: A combined mechanical air reel for harvesting equipment has a control support-manifold tube and a plurality of depending tubes mounted on the support-manifold tubes that direct a curtain of air against grain to be cut to move the grain toward a cutter bar on which the reel is mounted. At the same time a rotatable finger carrying bat type mechanical reel, also mounted on the central support-manifold tube, is used to feed material to the cutter bar. The mechanical reel bats rotate around the outside of the support-manifold tube. The bats extend parallel to the cutter bar, and the postion of fingers on the bats is controlled by a cam action that permits the bats and the fingers to enter and exit the grain substantially vertically to reduce shattering of the grain. A positive cam drive is provided for actuating the fingers.

Abstract: A grass catcher adapted to be detachably secured to a mower deck of a lawn mower which comprises a frame structure whose top and front frames are pivotally connected with each other. Lateral frame members are also pivotally connected at their inner ends to the front frame while their outer ends are adapted to be threadably secured to the rear area of the top frame. The hinged connections permit folding-together of the frame structure into a relatively flat package to reduce space requirements during shipping and storage.

Abstract: A yarn untwisting device in a pneumatic yarn splicing apparatus which includes an untwisting nozzle for guiding an end of cut yarn; a gas feed device for feeding a gas stream into the nozzle; a liquid feed device for spraying liquid to the yarn end which has been sucked into the nozzle; and a liquid recovering device connected to the nozzle.

Abstract: An improved yarn, fabric and protective garment made from such yarn, where the yarn, fabric and garment exhibit increased cut resistance, flexibility, pliability and softness. The yarn is non-metallic and includes a core made of fiber and a covering wrapped around the core. At least one of the strands is fiberglass, the non-fiberglass strands are preferably nylon or polyester.

Abstract: Apparatus for use with a traveling cleaner for textile machines, particularly ring spinners, operable to strip yarn ends from the whirls of the spindles for the bobbins of the ring spinner apparatus. A whirl cleaner blade is pivoted to the frame of the ring spinner adjacent each spindle so that its free blade end may be displaced into engagement with the whirl of the spindle by a jet of compressed air impinged against the blade. The compressed air is supplied by a nozzle suspended from the carriage of the pneumatic cleaner to impinge against the blade. The compressed air is fed from a central junction box under the track for the carriage through the energy chain which houses the power supply cables for the carriage. From the carriage, the compressed air is piped to the nozzle positioned at the level of the spindle whirls.

Abstract: A belt type false twisting device for a pneumatic spinning apparatus in which a fiber bundle is nipped between a pair of endless belts running in an intersecting relationship in mutually different directions to impart false twists to the fiber bundle. A pulley around which each of the endless belts extends is supported for rocking motion around a support shaft.

Abstract: A process for low NOX cogeneration to produce electricity and heat which involves combusting fuel to produce a gaseous stream of combustion products, passing the gaseous stream through a turbine to generate electricity, and to produce a gaseous exhaust stream, adding additional fuel to the exhaust stream, to provide a fuel-rich gas stream having fuel in excess of the oxygen in the combustible gas stream, treating the fuel-rich gas stream in a reducing atmosphere to produce a heated oxygen-depleted gaseous stream, converting at least a portion of the heat in the oxygen depleted stream into steam, adding air to the oxygen-depleted stream to produce a stoichiometric excess of oxygen in the resultant stream relative to fuel present in the resultant stream, passing the resultant stream over an oxidizing catalyst to produce an oxidized gaseous stream, removing heat from the oxidized stream, and venting the resultant cooled stream, the process further providing for cycling to the combusting step at least some of the

Abstract: Disclosed herein is a gas turbine system which is supplied with a low-pressure industrial by-product gas as a fuel and equipped coaxially with a gas compressor for compressing the fuel gas, the system providing a bypass pipeline for returning the gas in a high-pressure gas piping on the discharge side of the fuel gas compressor into a low-pressure gas piping on the inlet side of the compressor through a pressure reducing valve and a cooler, and an emergency gas pressure stabilizer having high responsive characteristics, the stabilizer being provided in the bypass pipeline on the outlet side of the cooler, whereby the high-pressure fuel gas on the discharge side of the fuel gas compressor can be returned safely into a low-pressure industrial by-product gas pipeline.

Abstract: Reliable starting of air breathing turbines even at high altitude is assured in a turbine engine of the type including an annular combustor 26 by locating one or more start injectors 96 away from the bottom of the combustor 26 and making the bottom of the combustor 26 free of start injector 96.

Abstract: A method for operating a rocket engine by injecting fuel and oxidizer into an elongated combustion chamber in two flows, a core flow where the fuel and oxidizer are intimately mixed and immediately combusted and a peripheral curtain flow which surrounds the core flow and which is in contact with the combustion chamber wall to cool it and limit the heat transfer from the wall to the injector to prevent vapor locks in the injector. To prevent decomposed or partially combusted propellant products from chemically reacting with the chamber wall no mixing of fuel and oxidizer takes place in the curtain flow. The curtain flow is deflected radially inward into the core flow, before decomposed or partially combusted products can come into contact with the wall, into the core flow to fully combust the curtain flow out of contact with the wall. The rocket engine is defined by serially arranged first and second combustion chambers and an injector constructed to form the core and curtain flows.

Abstract: A solid propellant rocket motor propellant grain configuration having a center bore of a varying diameter, ballistic slots, a stress/ballistic groove, and a burn inhibitor band for withstanding service motor operating environments and providing the required ballistic profile.

Abstract: A soot-filtering unit for an exhaust section of a diesel internal combustion engine with a supercharging device. The soot-filtering unit has at least on soot filter in an exhaust line and a regeneration device for the soot filter which includes at least one burner. The configuration of the unit connects an air intake of the burner of the regeneration device to the supercharging device so that the burner is supplied with a portion of the air charge from the supercharging device of the diesel internal combustion engine. In this connection, the configuration can be done in such a way that the burner is supplied exclusively with air from the air charge produced by the supercharging device, or so that the burner is supplied with a mixture of air from the air charge and exhaust gas from the exhaust gas line.

Abstract: A torque-generating steering device is provided for use with a pump (19) having a pressure compensator (23) for varying the output of the pump. The device includes a gerotor displacement means (43) which provides a relatively high-torque output to an output shaft (29) in response to the flow of fluid through the gerotor. A spool valve (73) and sleeve valve (75) define a fluid path (119) from an inlet port (13) through the gerotor to an outlet port (15). The fluid path includes a main variable flow control orifice (121) in series flow between the inlet and the gerotor, the orifice having a zero flow area when the spool and sleeve are in their neutral position, and a maximum flow area when the spool and sleeve are in an operating position. The device defines a load-sensing port (115) communicating with the pressure compensator (23) and with the fluid path (119), downstream of the orifice (121).