Abstract: A motorized operator drive is used with a window having a fixed frame and a movable sash, and a manually driven window operator mounted to the frame. The window operator includes an operator shaft rotatable to drive a linkage mechanism fastened to the sash to selectively move the sash relative to the frame to open or close the window. The drive comprises a housing having a motor end and an opposite nose end. A motor is mounted in the housing at the motor end and has an output shaft. A gear set is mounted in the housing including an input gear driven by the motor shaft and an output gear at the nose end. An adaptor is operatively engaged with both the output gear and the operator shaft to rotate the operator shaft in response to energization of the motor. A bracket is fixedly mounted to the window frame. A rubber grommet resiliently mounts a stud at the housing motor end to the bracket to provide isolation between the drive and the window.

Abstract: Hinge and latching structures associated with a door for a pressure vessel provides a tight and competent seal when the door is in sealed relationship with the opening of the vessel. The latching structure includes coupling structures which provide increased clamping engagement of the door in response to any increased pressure differential developed across the door.

Abstract: A sliding door closure system (10) for a sliding door assembly (100) including a door frame (101) enclosing a pair of sliding doors (102) wherein the system (10) comprises a telescoping housing unit (13) operatively associated with an internal spring biasing unit (14) wherein one end of the housing unit (13) is operatively associated with the door frame (101) and the other end of the housing unit is operatively associated with one of the sliding doors (102); and, further including tension adjustment means (15) for fictionally adjusting the closure speed of the housing unit (13).

Abstract: A moulding is contacted by two end pieces of a rotatable first holding part and is scanned by a disk.For the suppression of relatively large elastic deformations of the moulding by the pressure exerted by the disk, the moulding is also contacted by a second holding part which is located opposite the first holding part, extends into two tips and is mounted so as to be rotatable. For allowing an uninterrupted scanning, the disk is provided with a radial slot which, when the surroundings of the area contacted by the second holding part are scanned, receives said second holding part.The scanning device can be used for the direct copying of the moulding, rotations of the first holding part being transmitted via bevel gears and a shaft to a fastening bearing a blank and a rotating grinding disk of the same dimension as the disk being moved analogously to said disk.

Abstract: An improved method of using an ID saw slicing machine for slicing a single crystal ingot in a direction normal to the axis of the ingot to obtain wafers, of which the improvement lies in that the cutting load which the blade of the ID saw slicing machine imposes upon the single crystal ingot is continually detected in terms of three vector elements along three mutually perpendicular directions throughout the slicing operation, and that, when the magnitude of that vector element of the cutting load which extends in the slicing direction exceeds a predetermined value, the feed rate of the ingot to the blade is decreased and, at the same time, the rotational speed of the blade is increased in accordance with a predetermined control pattern.

Abstract: A cutting wheel, especially suitable for dicing silicon wafers and the like, which has a high degree of stiffness as a result of the wheel being a monolith with a thick inner section and thin outer or cutting section.

Abstract: Apparatus for supplying coolant to the location of contact between a workpiece and a grinding wheel in a grinding machine has one or more reciprocable and indexible carriers each of which removably or fixedly supports two or more different nozzles. This enables each carrier to maintain a selected nozzle in an optimum position for delivery of one or more streams of coolant to the location of contact. At the same time, the other nozzle or nozzles are sealed from a source of coolant so that the coolant is not wasted when a particular nozzle on the carrier is in the process of delivering an optimal quantity of coolant against a workpiece. The nozzles can be removed from their carrier or carriers individually or in groups of two or more. Alternatively, each carrier with all of the nozzles thereon can be replaced with a carrier mounting a different set of nozzles.

Abstract: A dust containment system for removing dust from the environment of a workpiece which is being blast cleaned comprises a water screen including a downwardly flowing curtain of water placed in the path of deflected blast media from the workpiece, a rearward wall spaced from the water screen and also in the path of the deflected stream of blast media and means to remove the blast media from the space between the water screen and the rearward wall.

Abstract: A method and apparatus (10) for grinding the edge of a precured tread (100) is described. The method for removing material from and shaping an edge of a precured tread comprises the steps of:a) placing the edge of the tread in a V-shaped groove of a grinding wheel;b) rotating the grinding wheel while it is in contact with the tread edge; andc) moving the tread and grinding wheel relative to one another, the movement being in a direction causing the edge of the tread to be ground to move through the groove in the grinding wheel. The preferred method comprises mounting a winged tread on an apparatus (10) capable of grinding the wing tip of the tread, the apparatus (10) buffing the tread wing (108) such that the wing tip (110) is ground along axially inner and outer surfaces (112,114) a radial distance of at least 5 mm about the circumferential extent of the wing, wherein the inner and outer surfaces (112,114) of the wing tip are ground to form two surfaces that intersect.

Abstract: A sanding appliance is described for supporting a sheet of sandpaper. The appliance includes a sanding pad with a flat lower sandpaper supporting surface of triangular outline. The pad is formed from sheet material which includes three edges defining the periphery of the sheet. The edges intersect at three points and a handle is connected to the pad for supporting and controlling the movement of the sander. The pad includes beveled surfaces at its edges which are inclined obliquely upward proceeding toward the center of the pad for supporting the edges of a sheet of sandpaper which are folded upwardly and centrally around the peripheral edges of the pad.

Abstract: A playhouse structure arranged to include a front and rear wall in a parallel orientation relative to one another, having first and second end walls. The first and second end walls are hingedly mounted intermediate their width and are hingedly mounted at each of their sides to the associated front and rear walls to permit projection of the first and second end walls intermediate the front and rear walls, with the roof structure having first and second roof plates hingedly mounted to the front and rear walls respectively and to one another. A modification of the invention includes crown trusses having projections projected through the roof plates and into one of the end walls to provide for a rigid structure.

Abstract: The device 30 has a multitude of armature 10A and 10B that when joined with a hinge rod 12 through the elongated tubular head 16A of said armature 10A and 10B and subsequently joined alternately to a series of base rods 14A and 14B through the base hole 18 of said armature 10A and 10B and then anchored to the interior surface or structural studs 28 of a skylight 32 vent or other point of access becomes a formidable entity for discouraging access by unwanted entities. By virtue of an adjustability provided by a multitude of armature 10A and 10B and a hinge rod 12, the device 30 will conveniently fit the interior dimension of a multitude of skylights, vents and other points of access. The device 30 is simple and easy for a user to install.

Abstract: A steel beam is reinforced by an attachment which creates a moment to counteract loads placed on the beam when it is incorporated into a structure. The attachment includes a transmitting member which is secured to the underside of the beam and a tensioned cable which is carried, in a tensioned state, by the transmitting member. The tensioned cable compresses the transmitting member creating an upward moment which is transmitted to the beam.

Abstract: The grid member is formed of sheet metal and has an inverted T-shape with a bulb at the top, a double thickness central web and oppositely disposed flanges at the bottom. To achieve controlled expansion, an extended angular lance is cut at the top of the bulb. No metal is removed at this area of maximum bending stress. Further, staggered cutouts are placed in the two thicknesses which make up the web. By staggering the cutout areas of adjacent web layers, the overall web strength is maintained. These web cutouts and the lance at the top of the bulb cooperate upon thermal expansion, causing the bottom flanges to buckle down, and the web and bulb to separate laterally and fold. The folded web configuration directed by the staggered cutout pattern will maintain longitudinal rigidity.

Abstract: An edge connector for connecting structural members at their adjacent edges is disclosed, including a base extending transversely between its edges, a support wall integral with the base and extending away from the base on one side thereof, the support wall extending generally parallel to the base edges and being positioned between the transverse center of the base and one edge; and a tongue integrally connected at one end to the support wall, extending from the support wall to a free end thereof; and spaced away from the base and positioned between the transverse center of the base and the other edge of the base on the side of the center opposite the one base edge, the tongue and the base defining a recess therebetween to receive the tongue of a mating connector.

Abstract: A wall framing system accommodates deflections and frame shortening in building structures to avoid applying structural loads to veneer walls. The system includes a ceiling rail and vertical studs connected to the rail with a vertical slip joint between each stud and the rail. The slip joint is formed with a connector plate integral with the ceiling rail web and vertical slots in the connector plate. The slots accommodate screws threaded into a stud.

Abstract: A prefabricated panel for forming walls and roofs of buildings includes a concrete planar portion having a first face and a second face, at least one concrete rib projecting from the first face, at least one block of insulating material fitted adjacent to the first face and the at least one rib, a metal stud channel secured over at least one of the at least one rib, anchors for securing the panel to a foundation. A polystyrene strip is preferably contained within each metal stud channel. The anchors preferably include a first angle-iron plate having first and second planar portions, the first planar portion being contained within one of the concrete ribs and the second planar portion being exposed and parallel with the exterior of the rib, a second angle-iron plate having first and second planar portions, the first planar portion being fastened to the second planar portion of first angle iron plate and the second planar portion being secured to the foundation.

Abstract: A protective guard to be used in conjunction with a structural corner or corner edge having metal beading or metal backing is provided and consists of an injection molded, elongated resilient one-piece body divided longitudinally into two equal halves connected by integrated living hinges. The protective guard is secured in place by a plurality of integrated oriented multiple pole ceramic magnets. The protective guard includes a continuous edge border which abuts the surface of the structural corner or corner edge such that the plurality of magnets are in close proximity but not contact with the structural corner or corner edge.

Abstract: A drywall corner-finishing accessory comprises three integrally joined, elongate strips, namely two relatively rigid, lateral strips and a relatively pliable, middle strip coextruded respectively from polyvinyl chloride having different durometer hardnesses. Each lateral strip has a rib along one edge. At its opposite edges, the middle strip is joined to the lateral strips at the distal edges of the ribs, preferably being joined to lateral surfaces of the ribs, so that a broad surface of the middle strip is stepped from the lateral strips. The accessory is flexible along the middle strip selectively to define a stepped, inside corner and to define a stepped, outside corner. The rib of each lateral strip guides a drywall-finishing tool and has a grooved pocket opening toward the distal edge of such lateral strip to receive drywall-finishing material.

Abstract: A prefabricated modular sun deck is disclosed, comprising a floor seated on a frame and preferably including a railing. The deck is easily erected and disassembled into modular sections capable of transport. The frame includes a levelling feature which facilitates levelling of the deck when erected, and periodic relevelling as required, without the need for sunken piers or other permanent supports.

Abstract: A reinforcing bar protection cap for location over the exposed end of a concrete reinforcing bar so as to protect against injury to workers. The cap includes a load spreading cap with a metal reinforcing disc, a support portion comprising a generally cylindrical housing, the load spreading cap closing the inner end of the housing. Three generally radial retaining webs engage with the reinforcing bar to locate and retain the cap at the end of the bar. The radial outer edges of the webs are generally parallel to the axis of the cylindrical body and define hinging or flexing lines for the respective webs whereby the retaining webs contact the reinforcing bar along respective lines of contact extending axially along the bar. The retaining webs are mounted to the cylindrical body only and are not connected to the load spreading cap.

Abstract: A longitudinal laminate board of mineral wool and method of making the board are disclosed. The laminate board consists of adjacently disposed pieces at least some of which are shorter than the length of the board and whose fibre plane form an essentially right angle to the plane of the laminate board. The pieces are jointed within the laminate board.

Abstract: A suspended ceiling system for use in a cleanroom or other application incorporates a framework formed from lengthwise and crosswise frame members which form open areas for mounting components such as air filter modules, light fixture panels, blank panels and the like. The ceiling system includes splice members for connecting the frame members together and clamps for securing the components to the frame members. Suspension members, which preferably engage corresponding fastening members disposed within the frame members, suspend the framework from the ceiling, defining an interior space above the framework. Substantial loads, such as utilities, robotics and wall partitions may be suspended from the framework by clips that engage with the frame members.

Abstract: Disclosed is a building wall construction method for forming a decorative wall by installing wall panels of a predetermined thickness to a wall body. This method comprises steps of attaching fittings to a surface of the wall body in an upright direction at predetermined intervals, the fittings being long enough to arrange a plurality of the wall panels along each of the fittings when the wall panels face the wall body, and having through holes at predetermined intervals in a surface opposite to widthwise edge surfaces of the wall panels; and inserting nibs into the through holes of the fittings and holes formed in the widthwise edge surfaces of the wall panels and holding the wall panels so as to construct a decorative wall.

Abstract: Spacer frame assembly for an insulating glass unit comprising a plurality of spacer frame elements connected to form a generally planar polygonal frame. Each frame element defines an impervious outer peripheral wall and first and second lateral walls, integral with the outer wall, extending inwardly from opposite outer wall sides parallel to the frame plane. The outer wall and lateral walls extend substantially continuously about the frame polygon and are joined adjacent their ends by connecting structure. The connecting structure comprises a connecting tongue continuous with and projecting from an end of one frame element. The other frame element end has a tongue receiving structure and the element ends are telescopically joined. Muntin bars are secured to the frame elements by latching structures which assure quick muntin bar assembly.

Abstract: An insulating spacer creates a thermally insulating bridge between inner and outer panes of, for example, a multiple pane window unit. The spacer defines an insulated space between the panes and includes a top bridge member, first and second leg members, a bottom bridge member and a channel portion. The top bridge member contacts the inner and outer panes of the window unit. The top bridge member is made of a synthetic resin or composite material and can include openings. The first and second leg members are embedded into the top bridge member. The first and second leg members can be bent into a zig-zag configuration. The bottom bridge member is substantially parallel to the top bridge member. The channel portion is defined by the configuration of the top bridge member, the first and second leg members and the bottom bridge member. In one embodiment, the bottom bridge member is roll-formed from the same piece of material as the first and second leg members.

Abstract: A dome-shaped structure and method of constructing same is disclosed having a base foundation and a plurality of inner and outer stringers. Each inner and outer stringer has a first end which is circumferentially spaced and attached to the base foundation. The structure includes a support assembly for supporting the second end of the plurality of inner and outer stringers at a substantially central location above the base foundation. The circumferentially spaced inner stringers are located within the periphery formed by the circumferentially spaced outer stringers at the base foundation and the second ends of the plurality of inner stringers are below the second ends of the plurality of outer stringers. An outer shell is attached to the plurality of outer stringers and an inner shell is attached to the plurality of inner stringers. A substantially continuous enclosed space is formed between the inner and outer shells.

Abstract: A packing apparatus used for filling or/and emptying bottle cases or the like. The packing apparatus comprises an extension arm, which is adapted to have attached thereto a gripping head and which is articulated on two articulation points with the aid of steering rods defining a steering rod system which is adapted to be moved after the fashion of the bars of a parallelogram, said extension arm being adapted to be moved in an essentially horizontal direction via a cam disk. The steering system also comprises a bipartite steering rod whose parts are adapted to be pivoted relative to each other. By pivoting the two parts of the steering rod relative to each other with the aid of a second cam disk and by changing thus the effective length of the steering rod defined by these two parts, an essentially vertical motion can be superimposed on the horizontal motion of the extension arm, to provide an appropriate path for the gripping head.

Abstract: There is disclosed a capping machine head for affixing screw caps on containers, which in one embodiment has a cylindrical magnet ring in the body of the head surrounding a cap chuck driving element in a low friction bearing in the head, each having an array of permanent magnets distributed around their periphery. For certain angular relative positions of the ring and the chuck driving element, the North poles of one are face-to-face with the South poles of the other; displacement from such position causes torque on the order of ten to twenty inch pounds to be imparted to the chuck driving element. The chuck driving element rotates with the magnet ring until the resistance of a cap being threaded on the container exceeds a predetermined torque limit, after which the magnet ring rotates relative to the essentially stationary chuck driving element. The ring magnets may be in an axially misaligned position to reduce and control maximum torque value.

Abstract: Bags custom-sized to the volume of articles packed and to be packed therein are manufactured on-site and on-demand at the location at which the articles are packed in the bags. The bags are formed from a continuous sheet of flexible film material which is shaped into a tubular wrapper along the interior of a generally quadrangular former. The bags are sealed along their tops so as to prevent inadvertent spillage of articles therefrom and may incorporate unitary handles formed during manufacture of the bags and a readily removable protective envelope at least partly defining the top closure thereof.

Abstract: A machine for and a step by step method of forming packages or containers from blanks, heat sealing the sides of the packages and depositing the packages in fixtures, retaining the packages in fixtures during dosing of the packages with product, heat sealing the tops of the packages and ejecting the packages from the fixtures. The sides of a newly formed package are heat sealed through apertures in the forming die before the package is placed in the fixture. Once placed in the fixture at the forming station, the package remains in the fixture during the filling or dosing of product at the filling station and as indexed into the top sealing station. At the top sealing station the filled package is partially elevated from the fixture to expose the entire top of the package for heat sealing.

Abstract: Agricultural Bagging Machine including a vertically disposed chain feeder positioned above the rotor thereof to move silage downwardly into contact with the rotor. The chain feeder comprises a pair of chain feeder conveyors positioned in a side-by-side relationship.

Abstract: An encoder is mounted upon a vehicle within a sealed, tubular housing. The encoder is mounted within the housing by a shock absorbing mount. Stub shafts extend from each end of the tubular housing which are co-axial and which are aligned with a direction of movement of the vehicle. The stub shafts are sturdy and carry a row follower upon them. The row follower contacts a path to be followed along the ground. At least one of the sturdy stub shafts are connected to the encoder by a shock absorbing, flexible coupling. The encoder translates signals by which the vehicle is guided along the path contacted by the row follower.

Abstract: A rotary weed cutter or trimmer establishes two cone shaped guard volumes about the drive shaft to prevent weeds or vines, whether cut or uncut, from wrapping around the shaft during operations. A motor-driven weed cutting machine drives a main filament spool mounted on the drive shaft. When the spool is rotated at high speed by the motor the filaments create a conventional cutting plane. An auxiliary spool is employed to create a guard zone comprising two cone shaped guard volumes coaxial with the drive shaft. The auxiliary spool is mounted on the shaft between the main spool and the frame of the machine. The hub of the auxiliary spool defines a central orifice to accommodate the shaft. An upper disk and a lower disk extend from the hub. A plurality of holes are drilled about the periphery of the disks. Cutting line or braided wire is disposed through the holes. Each of the bitter ends of the line or wire are left unanchored to provide cutting action in the vicinity of the shaft.

Abstract: Structure for stripping cotton bolls from cotton stalks comprising a rubber batt having a rounded head and a toed foot; said foot being formed so that it may be installed into a lipped channel strip for connection to a rotatable shaft. The rounded head of the batt provides a buffering contact area between the batt and a cotton stalk thereby preventing excessive chipping of bark from the cotton stalk during harvesting operations. This results in production of a more pure cotton product by minimizing a cotton stripper's collection of foreign matter together with the desired cotton bolls.

Abstract: A rake component system consists of a tool bar frame member, a pair of rake assemblies, a pair of pivot heads for mounting the rake assemblies to the tool bar frame member, a lifting and lowering assembly, a three-point hitch assembly mountable to the tool bar frame member and a pull-type hitch assembly mountable to the tool bar frame member. These components are shipped to a dealer or assembler in a knocked-down condition. When desired, the rakes and pivot heads are mounted to the tool bar frame member. Either the three-point hitch assembly or the pull-type hitch assembly is mounted to the tool bar frame member, depending upon the particular configuration desired. The lifting and lowering assembly, which consists of a linkage connected to the rake pivot heads and an extendible and retractable cylinder connected to the linkage, is then mounted to tool bar frame member.

Abstract: A composition for coating rings or travelers employed in yarn spinning applications is provided. The particular composition comprises an iron replacement composition such as copper selenide. The coating may be applied to rings and travelers in thicknesses of from about 0.001 mils to about 0.05 mils. The coating provides a low friction but high wear resistant surface between the traveler and a ring.

Abstract: A blended staple fiber yarn having a high grade cotton yarn-like touch, hand and appearance and superior mechanical strength, abrasion resistance, flame resistance and scratching resistance is comprised of 30 to 80 parts by weight of extremely fine polyester staple fibers having a denier of 0.9 or less and 20 to 70 parts by weight of super high modulus staple fibers having a Young's modulus of 4000 kg/mm.sup.2 or more, and can be produced by a specific draft zone system spinning process in which individual filaments are drawn-cut and the resultant staple fibers are cohered to each other to form a spun yarn.

Abstract: In a textile spinning machine, apparatus for automatically joining a thread and cleaning the machine comprising a tube mechanism, a mechanism for routing a flow of air through the tube mechanism and controlling the rate of air flow through the tube mechanism; a mechanism for sequentially moving the tube mechanism to one or more selected thread joining positions relative to the machine including at least a position such that a thread end may be received and held within the tube mechanism via air suction flow through the tube mechanism; a mechanism for sequentially moving the tube mechanism to one or more selected thread waste positions relative to the machine such that the selected thread waste positions on the machine may be cleaned via controlled air flow through the tube mechanism; and wherein the mechanism for routing and controlling the air flow includes a mechanism for selectively adjusting the rate of air flow through the tube mechanism to a rate selected according to the selected position to which the

Abstract: A friction-textured elastic yarn is prepared by twisting a single-component multifilament melt-spinnable polymer yarn having an initial modulus of 80 to 150 cN/tex and a melting point of at least 200.degree. C. at a speed of at least 200 m/min, the thus twisted yarn is heat-set at 160.degree. to 190.degree. C. to produce a fixated yarn, and the fixated yarn is friction-textured at a pretension of 0.5 to 3.0 cN/tex.

Abstract: The instant invention relates to a spinning process and to a device for the production of a yarn. In the spinning process the fibers are conveyed to a perforated collection surface which is subjected to suction in one zone. They are brought together into a fiber accumulation on the collection surface. The fiber accumulation is drawn off from the collection surface and twisted into a yarn of predetermined twist in a twisting element which follows the collection surface in the direction of yarn draw-off. The fibers are accumulated at a suction edge constituting a collection line and are pre-twisted at said collection line.

Abstract: A bleed air control system for an aircraft gas turbine engine operates in a fuel saving mode in response to operation of the aircraft in a steady-state cruise condition (215,350) within a threshold flight envelope (202,310) during steady-state engine operation above a threshold range. During operation in the fuel saving mode, a gas turbine engine compressor bleed valve (10) is closed. The rate of bleed valve closure is determined as a function of bleed valve position (12,20) and gas generator speed (26,30) at the instant the fuel savings mode is initiated.

Abstract: Surge protection is achieved in a turbine engine intended to provide varying quantities of bleed air and having two compressor stages (48, 36) by providing the inlet (56) of the first stage (48) with variable inlet guide vanes (58, 60). The first stage compressor (48) is a high specific speed, single stage centrifugal compressor whose stable operating characteristics are highly sensitive to inlet guide vane geometry, thereby allowing variations in such geometry to be employed to prevent compressor surge.

Abstract: A free-floating damper system is provided wherein a damper housing is configured to receive a damper arm for free-floating movement in the x/y plane while restricting similar movement in the z plane. The damper arm is specially configured with first and second wear bushings positioned in a spring biased support to insure the frictional generation of coulomb dampening forces between the damper arm bushings and the damper housing. The damper can be fixedly mounted to a portion of a gas turbine engine such as the turbine frame and a portion of the damper arm can be attached through a mounting bracket to an accessory tube of the engine to dissipate vibrational forces which otherwise can damage the accessory tube.

Abstract: The gasification-combined power plant of the present invention has a structure wherein a fuel gas is generated by partially oxidizing a carbon-containing fuel 2 with an oxygen-containing gas 3 in the gasification apparatus 1, the sensible heat of the fuel gas is recovered by the heat exchanger 4, char and dust are removed from the fuel gas by the dust collector 5, trace gas components, such as H.sub.2 S and NH.sub.3, are simultaneously removed from the waste gas by the gas separation apparatus 6 based on dry physical adsorption of these components (for example, by a pressure swing adsorption method), the thus separated and removed gas containing high concentrations of trace gas components, such as H.sub.2 S and NH.sub.3, is denitrated and desulfurized by the gas disposal apparatus 7 and then is discharged from the chimney 13 into the atmosphere.

Abstract: In a combined gas/steam power station plant which consists essentially of a fossil-fired gas turbine group and a steam circuit, with an exhaust heat boiler (11) in between, intercooling and reheat are provided to maximize the efficiency. The gas turbine group consists of two compressors (1, 2), of two combustion chambers (7, 9) and of two turbines (8, 10). Downstream of the first compressor (1), there is an intercooler (3) and on the cool side of this is placed an evaporator (4) which is in effective connection with the intercooler. The steam quantity formed in the evaporator (4) is introduced into a turbine (6) of the steam circuit, the result of this being a first improvement in efficiency. Downstream of the first turbine (8), there is a second combustion chamber (9) in which the exhaust gases from the first turbine (8) are processed to produce hot gases for the second turbine (10) .

Abstract: In the case of a gas turbine, containing a turbine (10) and a compressor (11), it is intendeda) to increase the efficiency of the individual components (10, 11),b) to reduce the undesired exhaust gases, i.e. NOx formation.Means (21) of generating cooling air of higher quality are used. In particular, cooling air of higher quality can be generated by a booster (21) which contains a booster compressor (23) and a booster turbine (22). A further increase in efficiency is achieved by a heat exchangers (29, 30) on the booster (21). The booster turbine (21) is driven by the fuel and the booster compressor (23) compresses the compressed air generated in the compressor (12) to form the cooling air of higher quality. The advantage of this plant is the utilization of previously unused energy of natural gas.

Abstract: A low noise power plant (100) for providing thrust to a missile (102) having a solid fuel propellant (114) for generating a pressurized gas. A revolving turbine (104) which is integral with the solid fuel propellant (114) converts the pressurized gas to rotary motion. A drive shaft (138) transfers the rotary motion to a load. In a preferred embodiment, the power plant (100) is utilized to drive a projectile (102). The revolving turbine (104) includes a combustion chamber (106) containing the solid fuel stick (114) and a plenum (108) having a plurality of angled openings (120) formed in the outer periphery thereof. The drive shaft (138) connects the revolving turbine (104) to a load such as a fan type propeller (134) via a speed reduction gearbox (136). The solid fuel stick (114) is ignited by conventional methods and burned to provide pressurized gas which is directed to the angled openings (120).

Abstract: A dynamic pressure machine with integrated combustion has a cellular wheel containing a number of cells, in which a continuously recurring ignition and combustion process takes place. Neither energy supply from the outside nor a control action should be required to maintain this continuously recurring process. Means are provided for the automatic ignition and combustion of the entering fresh air-fuel mixture, in particular: at least one hot gas pocket disposed on the wall of the cell; a catalytic coating of the cell wall; and, a hot spot in the cell.

Abstract: An integrated damper and windage cover 52 has a windage cover portion 56 cantilevered at the upstream end, free of contact with the blade platform 24, 32. The contact portion 54 is rigid and bears against the underside of the blade platform 24, spanning blade platform clearance 50.