Abstract: To save space in an office when a personal computer is operated or when a conference is held with a number of persons, a working table which has a concave portion at the front edge and a auxiliary table are used. A plurality of the working tables and auxiliary tables are arranged side by side and surrounded by a partition to form a working room. The auxiliary table is placed by the working table and is movable with casters at the ends of feet of the auxiliary table. The height of the auxiliary table is variable, so that it is disposed with the working table at the same height for conference in the office, or is stored under the working table when the auxiliary table is not used. On a board which is slidably mounted on a panel at the rear end of the table, information or schedule may be written. The working room surrounded by the partition has a roll screen, and the workers can discuss various matters, watching an image on the roll screen projected by a projector.

Abstract: A building module collapsible for transport and expandable for use, includes an elongated core section which has substantially vertical, lateral and longitudinal walls and a core floor section which together define a partially enclosed interior area. A floor assembly is connected to the core floor section for movement between folded and unfolded positions. Telescopic, as well as foldable wall, ceiling, floor and roof sections are provided and allow the building module when in its collapsed for transport condition to comply with the current United States Department of Transportation regulations pertaining to the maximum shipping sizes for standard ground transportation, as well as the current International Standards Organization codes pertaining to maximum shipping sizes for standard ground and water transportation.

Abstract: A structurally integrated shelf and soffit configuration is provided for storage buildings and sheds. A shelf board extends inward and outward across the top wall plate and a soffit board is affixed to the outside underside of said shelf board. The soffit board gives a finished appearance and provides support for the cornice fascia truss. The shelf provides a substantial amount of additional storage area. This configuration provides lateral structural rigidity to withstand the outward pressures exerted by a domed or gambrel roof.

Abstract: A segmented, encapsulated insulation assembly preferably includes a blanket of fibrous insulation having a plurality of longitudinally spaced apart, transversely extending cuts therein. The cuts divide the fibrous insulation into segments and weaken the fibrous insulation to permit the fibrous insulation to be selectively separated at any of the cuts. The fibrous insulation is encapsulated within an envelope having weakened transverse tear lines that divide the envelope into envelope segments. The transverse tear lines in the envelope overlay the cuts in the fibrous insulation to permit the envelope to be separated at the cuts thereby forming a plurality of encapsulated fibrous insulation modules. One or more of the encapsulated fibrous insulation modules can be selectively separated from the segmented, encapsulated fibrous insulation assembly to form an insulation panel of a desired length to insulate a cavity.

Abstract: A bird barrier includes an elongated base enclosing a wire from which depends a plurality of pivotably mounted thin wire-like appendages. The base is mounted on a fixed surface in a manner such that the appendages can dangle in front of and hang below an opening such as a vent opening on a house or other building. The pivotable relationship between the base and the appendages allows mounting of the base on surfaces having diverse angular relationships with respect to a vent opening so that, regardless of the configuration of the mounting surface, the appendages will dangle in front of the opening.

Abstract: A linear actuator has a drum, a stiff flexible ribbon wound on the drum, a device for rotating the drum at least to partially unwind the ribbon thereon, a guide funnel for gradually forming the ribbon into a tubular configuration as it comes off the drum, and an attachment device at a free end of the ribbon for connection to an object to be moved in a linear path. The actuator converts rotary motion to linear motion without the need for complex mechanical linkages.

Abstract: A ground engaging stake used to anchor and support equipment with respect to the soil includes an I-beam and a spring assembly which engages the I-beam. The I-beam includes a web plate and a pair of end plates which extend perpendicularly to the web plate at opposite edges thereof. A pair of guide plates are spaced from and parallel to a middle portion of the web plate. A pair of cams are mounted on each side of the web plate adjacent a bottom end thereof. The spring assembly includes a pair of spaced parallel springs rigidly attached to one another at a top thereof by a center stop. A pair of side stop blocks are attached to the top outer surface of each spring. Springs 32 extend between a slot formed between the guide plates and web plate of the I-beam. The spring is driven downwardly causing the springs to deflect against an angled top surface of each cam and bend slightly outwardly away from the I-beam.

Abstract: A seismic isolation apparatus which has a composite multilayered member comprising a plurality of hard plates having rigidity and a plurality of soft plates having viscoelastic property which are arranged to form alternating layers between an upper flange and a lower flange; and satisfies the condition that the proper vibration to the horizontal direction of the seismic isolation apparatus which is represented by f.sub.H and obtained by the equation f.sub.H =1/2p.sqroot.K.sub.H M wherein K.sub.H represents a spring constant of the seismic isolation apparatus to the horizontal direction, M represents mass of a structure mounted on the seismic isolation apparatus, and f.sub.H has a value in the range of: 0.1 Hz.ltoreq.f.sub.H .ltoreq.2 Hz when the displacement of the seismic isolation apparatus in the horizontal direction is 2 mm or less, 0.1 Hz.ltoreq.f.sub.H .ltoreq.0.8 Hz when the displacement of the seismic isolation apparatus in the horizontal direction is equal to 100% shearing strain, and 0.9 Hz.ltoreq.

Abstract: A drainage pipe for use with a basement waterproofing and drainage system includes a U-shaped lower section, the lower section having a base, first and second side portions, the first and second side portions angling away from a line perpendicular to the base and outward and away from the base. The edges of the upper section are folded over and downward to receive and hold the side portions of the lower section. A substantially L-shaped cover plate is bent upwards at an angle of about 90 degrees and has attaching means for attaching the second section to a basement wall.

Abstract: An existing glazing system using small rectangular plastic or glass glazing panels or using thin films, plastic glazing panels may be converted in an inexpensive manner to an elongated rigid, plastic glazing panel system having a condensate removal system. Very long glazing panels of plastic, preferably corrugated, are laid across several purlins in the vertical direction. The glass glazing panels or the thin film glazing panels are removed to expose the roof members. Purlins are laid across the roof members with ends of the purlins positioned intermediately adjacent roof rafters. Condensate collector channels on the purlins convey moisture to the ends of the purlins and discharge collected moisture to an underlying drain, which is fastened to and carried by the purlins. The drain is spaced from the rafter roof members. Very long glazing panels of plastic, preferably corrugated, are laid across several purlins in the vertical direction.

Abstract: A penetration resistant door light adapted to withstand impact from flying debris as might occur in a hurricane or other high-wind condition. The door light includes inner and outer frame halves that support a panel assembly within an opening formed in a door. The panel assembly includes a sheet or layer of transparent impact resistant material such as a polycarbonate or laminated glass. The impact resistant sheet is structurally secured to at least screws extend through all of the inner frame half, the impact resistant sheet, and the outer frame half. In an alternative embodiment, a structural adhesive intersecures the impact resistant sheet and the outer frame half.

Abstract: A spherical support structure is provided. The spherical support structure includes a plurality of interconnected rib structures defining a spherical shape. Each rib structure includes a vertical rib, horizontal members connected to the vertical rib, a plurality of exterior diagonal members extending diagonally outward from the rib structure for connection to other rib structures, and a plurality of internal diagonal members connected to the rib structure and extending diagonally between a spherical exterior shell and a spherical interior shell. The spherical exterior shell being connected to and enveloping the rib structures. The spherical interior shell being connected to the rib structures and forming spherical cavity therewithin. A plurality of floor structures are mounted to the horizontal members of the rib structures and are horizontally disposed between the spherical exterior shell and spherical interior shell.

Abstract: A drainage system for a conventional deck assembly made of flexible material and mounted beneath the surface decking between adjacent deck joists. The drainage system is designed to collect water leaking through the spaces between adjacent deck cross pieces and channel it to a gutter and downspout, keeping the area beneath the deck dry. The deck drainage system consists of a plurality of water channeling members respectively formed from substantially flexible web material mounted side-by-side in succession and mounted in an overlapping relationship, straddling adjacent deck joists thereby removing the deck joists from view.

Abstract: A roof construction includes spaced apart corrugated sheets held in spaced relationship by a plurality of spacers, the corrugated sheets both including apertures for dissipating heat contained in the hot air between the sheets into atmosphere and for guiding hot air from below the lower sheet into the space between the sheets for ultimate expansion and discharge into atmosphere. The apertures may be offset to prevent flow of moisture directly through the apertures and other devices may be utilized to prevent direct flow of moisture into the space below the roof assembly.

Abstract: A pre-insulated prefab wall panel comprising of a rectangular wall frame having top and bottom rail members and a plurality of spaced apart stud members aligned between the top and bottom rail members. A polystyrene boardstock is affixed to a first side of the rectangular wall frame, thereby defining with the top and bottom rail members and the plurality of stud members a plurality of rectangular cavities, wherein each cavity has a depth of the thickness of a stud member. The prefab wall panel further has a layer of foamed-in-place polyurethane covering a portion of each cavity adjoining the boardstock, and bonding the structural wall frame to the polystyrene boardstock. The layer of polyurethane foam has a thickness which is substantially less than the depth of each cavity, whereby each cavity has available space for accommodating sub-trade installations.

Abstract: An improved light weight wall structure for buildings is disclosed. It contains: (a) a skeletal frame having a plurality of posts for quick assembly; (b) a plurality of gusset sub-panels and base board sub-panels disposed in overlapping and alternate relationship fastened to the skeletal frame; (c) connection means provided in each junction between adjacent sub-panels for securely adjoining the sub-panels together; (d) a slurry retention device disposed on at least one major surface of a selected number of sub-panels; (e) a wall facing layer applied to the sub-panels in the form of a setable slurry, so as to increase the strength of the wall structure; and (f) a protection plate mounted on a portion of the wall structure that is most likely to be damaged.

Abstract: A fire barrier protected dynamic joint in a structure, and a method for installing the same. The fire barrier protected dynamic joint includes a flexible sheet of a fire barrier material and a adhesive material for bonding the sheet to an attachment area of the joint.

Abstract: A high strength insulated building structure. The building structure uses a rigid foam building panels having kerfs on each side. The kerfs on the rigid foam building panels are complementary in shape to pre-cured jacketed concrete posts. The pre-cured jacketed posts have a mounting attachment foot adapted for mounting on a substructure, and the building panels are securely and sealingly mounted between adjacent, substructure secured, jacketed concrete posts. The jacketed concrete posts are also provided with top attachment members which are secured to beams which run horizontally above the rigid building panels. The building panels are also provided with furring strips recessed to be flush with their interior and exterior surface, for permitting fasteners to be used for fastening other structural components thereto, such as gypsum board on the interior and siding on the exterior. The building structure provides a high strength, highly insulating structure with quick building time in the field.

Abstract: A building panel is formed using particulate mineral material, such as sand, with an adhesive binder, to form an aggregate. The mix undergoes a heating process to cure the adhesive, which also produces a porosity in the panel. The relative quantities of the materials are such that the resulting panel is porous after heating, with the interstices between particles being devoid of binder material. The resulting porosity provides for the limited passage of air and moisture, particularly water vapor, through the panels so the panels may "breathe" to allow circulation through a structure composed of the present panels, and also provides acoustic properties. The present panels are non-flammable, in accordance with the non-flammable materials used in the formation thereof. The panels may be colored or tinted as desired, by adding a coloring material (epoxy paint or other suitable coloring agent) which may be mixed with the sand and adhesive binder before heating.

Abstract: A device for loading and distribution of articles or material to be packaged in a packaging machine comprising an upper hopper for receiving the articles, a series of radial channels for conveying the articles towards peripheral points of collection of portions of articles a unit for distribution of the articles received via the hopper means to the conveying channels placed above said conveying channels, and drive means, provided for rotating the distribution unit around a vertical axis in order to consent the transfer of the articles to the conveying channels. In the device the distribution unit further comprises at least a first and a second distribution element extending radially and connected to each other in order to rotate together.

Abstract: A tray packing-shrink wrapping machine for packaging articles along a conveyor is disclosed. The machine is operable in a dual lane mode and a single lane mode. In both modes a collation section receives articles from an infeed section and arranges the articles into rows and columns to create batches of articles. In dual lane mode a lane divider structure separates each batch into smaller microbatches. Separate trays and sheets of heat shrinkable film are simultaneously formed around the microbatches. An in-line stacker is selectively operable in single lane or dual lane modes to stack a packed tray on top of the preceding packed tray. The machine is quickly converted to single lane mode by removing the lane divider structure and center trayforming structures, removing the center stacker elements and retracting knives in the blank feeding and film wrapping devices. A method for converting a dual lane machine to a single lane machine is also disclosed.

Abstract: A packaging system includes a stacking apparatus which utilizes a supplemental stacking member on a transfer mechanism for receiving at least one article from a conveying mechanism while the transfer mechanism is transferring a stack, such that a new stack is begun prior to completing the transfer of the first stack. This permits a substantially constant supply of articles to be provided continuously to the stacking apparatus without having to interrupt or slow down the flow of articles to the apparatus. The packaging system also includes a boxing apparatus which relies on pneumatically-actuated positioning mechanisms to move stacks of articles to discrete positions within boxes. Both the position and the velocity of the pneumatic mechanisms are utilized as feedback to provide increased speed without compromising positioning accuracy.

Abstract: A package bag expanding device includes a box and a pivotable cover which has a hole defined therethrough. A frame includes two first rods and a second rod respectively extending laterally therefrom. At least one package bag has two holes defined therethrough, a recess defined in an upper edge thereof and an opening defined therein below the holes. The two first rods extend through the two holes and the second rod is received in the recess. A pressing mechanism is fixedly disposed to one of two side walls of the box and includes an arm pivotally connected thereto which has a distal end rested on a periphery defining the opening of the package bag.

Abstract: A container receives and stores soiled items through valving structure that receives a soiled item through a normally open input opening and releases the soiled item to the container through a normally closed output opening after closing the normally open input opening and opening the normally closed output opening while preventing odors inside the container from escaping to the region outside the container.

Abstract: A method and apparatus for wrapping cardboard and paper rolls for protection during shipping and handling. The rolls are wrapped in a strip of wrapping material, that has a width which does not exceed the length of the roll. The roll is transferred to the wrapping station on a transporter and is stopped using a mechanical positive stop so that a edge of the cylindrical part of the roll is aligned with a first edge of the wrapper roll mounted in the wrapping station. When the roll is stopped, a first layer of the wrapper is wound on the roll. Then, if the length of the roll is greater than the width of the wrapper, the relative position of the roll and the wrapper is changed so that the second edge of the cylindrical part of the roll is aligned with the second edge of the wrapper roll, and a second layer of wrap is wound on the roll.

Abstract: A flexible pressure vessel 20 having an aperture 44 through one wall 30 of the vessel 20, which aperture 44 can be closed by a closure flap 50 having sufficient surface area of adhesive 52 to completely surround the aperture 44. The adhesive 52 has sufficient peel strength to prevent the vessel 20 from being reused after closure, and the vessel 20 is capable of withstanding a pressure differential of at least 75 kPa for at least thirty minutes.

Abstract: An automatic apparatus is provided for automatically performing the steps of filling a pill card or capsule with a desired pill or capsule, folding the pill card, heat sealing the pill card, and, if desired, printing a label directly onto the pill card.

Abstract: There is disclosed apparatus and method for packaging individual strand segments of a strand material, such as dental floss, including apparatus for carrying out a method of supplying strand material to a rotatable guide element through a hollow shaft thereof positioned to wind the strand material around a selected mandrel of a circular array of mandrels together with controlling the moving of mandrels within and removing mandrels from within the circular path of the rotating guide element and for counting the rotations of the guide element and using that rotation count to control the advance of the array of mandrels wherein the mandrels have openings for entry of a pick-off element and are caused to be lowered to leave the coil of strand material on the pick-off element, following which the coil of strand material is urged forward by an air jet to be captured between two sheets of packaging film and transported to a stage where the packaging film sheets are sealed together around the coil to form a package i

Abstract: In a stretch wrapping system, the film is punctured about half way across its width to form a small hole which is expanded in the prestretch station and the film finally broken by abruptly increasing film tension at the end of a wrapping operation.

Abstract: A system of the present invention includes a deep draw package enclosing a three dimensional item such as for example a blood collection tube or the like, and an apparatus and method for making the same. The deep draw package includes an upper film and a lower film each having a cavity formed therein, with the films sealingly joined together along the periphery of the cavities to form an item containing compartment therein. A tab member is provide along one edge of the films to facilitate opening of the package. The apparatus and method of the present invention include a number of sub-assemblies for providing an upper film and a lower film, forming cavities in the films, placing the item in one of the cavities, sealing the films together along the periphery of the cavities to form a continuous web and cutting the continuous web into strips having the desired number of packages formed therein.

Abstract: A composite insert is provided for converting a rotary mower deck from side discharge to mulching usage. The insert can be detatchably mounted in the mower deck and provides a cutting chamber wherein grass can be cut, mulched and redistributed onto the ground beneath the mower deck. The insert forms with the mower housing a cutting chamber which includes a reduced cross-sectional area at the front portion that provides for confining and accelerating the movement of air and clippings there through to minimize build-up of clippings adjacent the chamber surfaces. At the rear portions of the chamber, a larger cross-sectional area is provided to permit the clippings to slow down and disperse, allowing the clippings to be distributed and/or redirected into the blade for mulching. It is preferred that the insert is adapted for use with a two-bladed mower deck.

Abstract: A zero-turning-radius power lawn mower for operation by a standing-occupant includes first and second independently driven and controlled rear drive wheels mounted on separate drive axles. A riding platform for supporting the standing-occupant or operator is located between the first and second rear drive wheels. The rear drive wheels are independently driveable in both the forward and reverse directions at variable speeds so as to allow for substantially zero-radius-turning of the mower about a central turning point. The riding platform is positioned at this turning point so that the standing-occupant remains substantially unaffected by centrifugal force created during approximate zero-radius-turning of the mower thereby allowing the mower to take such turns at higher speeds.

Abstract: A device for mowing, cutting, and mulching of vegetation in a single pass over the terrain. A movable folding shroud is provided that is pivoted upward to expose a cutter for severing larger trees. The device may be configured so that mowing, cutting, and mulching operations are all performed while traveling in the same direction. Alternatively, the device may be configured so that mowing and mulching operations are performed while traveling in one direction, with cutting operations performed while traveling in the opposite direction. The device may also be configured with a dispensing assembly for applying chemicals onto the cut vegetation to obtain a more effective kill and minimize re-growth.

Abstract: A tree shaker comprising a construction having a front end engaging two arms for gripping a tree; a first shaft having a first weight is rotatably engaged by the construction and is rotated by a first motor a first weight connected to or integrally formed with the first shaft; a second shaft having a second weight is rotatably engaged by the construction and is rotated by a second motor, the first and second shafts being coaxial such that one of them is internally located relative to the other; a stopping mechanism is connected to one of the weights for restricting the relative orientation of the weights to a maximum of 180.degree.

Abstract: This invention provides an improved shaker rod for a shaker type fruit harvester machine comprising a rigid mounting portion at one end of the rod arranged to be rigidly secured directly to a support member on the machine, a deflectable free end portion at its other end, and an intermediate elongate portion extending between said ends, the rod being constructed so that its strength and stiffness varies between its ends whereby the rod is less stiff and therefore more flexible in the region of its free end than at its fixed one end. Preferably the free end portion comprises an enlarged bulbous formation which has a convexly curved end wall.

Abstract: A garden rake pick-up attachment for a garden rake of the type having a bow rake head tine section and a handle comprises a pick-up tine section, a clamp section, and a handle section; the pick-up tine section comprising a tine bar carried by yoke bars, the yoke bars having a yoke section therein including a hinge member extending between the yoke bars. The clamp section comprises top and bottom clamps shaped to engage the garden rake yoke bars and to confine the hinge member so that the pick-up tine section can pivot around the hinge member relative to the garden rake tine section. The pick-up yoke section is shaped to enable the garden rake handle to pass therethrough. The pick-up handle section comprises an elongated handle rod pivotably connected to the pick-up yoke section, a handle grip at an opposite end of the handle rod, and a stop for holding the pick-up tine section in an open position.

Abstract: A yarn splicing device and method provides for overlapping yarn ends from different spools or packages of yarn to form a smooth, continuous splice. The device allows the operator to place the different yarn ends in a pair of clamps that are separated by a pneumatic commingling jet. After the yarn is clamped into place the yarn ends, which consist of multi-filament yarns, are pneumatically commingled and thereafter the clamps are rotated in opposite directions from the commingling jet to stretch the splice junction to reduce the diameter thereof. Thereafter the clamps release the spliced yarn so it is available for removal and further processing such as texturizing. The splicing method described provides a fast, efficient method which provides for uniform yarn diameter which does not slow or obstruct other yarn processing steps by snagging or breaking at the splice junction.

Abstract: A pot spinning method and apparatus wherein a spinning pot rotates during spinning about a vertical axis while an associated yarn guide tube delivers fiber material through an exit mouth of the yarn guide tube onto the rotating inside surface of the spinning pot in the form of a revolving extent of the yarn which also rotates about the axis of the spinning pot. A yarn break or unacceptable changes in quality of the spun yarn can be ascertained extraordinarily quickly if deviations in the duration of the revolution of the yarn extent at the mouth of the yarn guide tube are monitored.

Abstract: A textile machine has a machine frame with a first and a second end. Spindles are connected to the machine frame in two parallel rows extending in the longitudinal direction. A first tangential drive belt arrangement for driving the spindles of the first row includes a first tangential drive belt and two first shafts positioned at the first and second ends and having a first pulley connected thereto. The first tangential drive belt extends between the first and second ends and is guided about the first pulleys. A second tangential drive belt arrangement for driving the spindles of the second row includes a second tangential drive belt and two second shafts, positioned at the first and second ends and having a second pulley connected thereto. The second tangential drive belt extends between the first and second ends and is guided about the second pulleys. Two drive motors are positioned at the first and second ends.

Abstract: A steel cord is disclosed, which has a core-sheath double layer structure having a 2+7 cord construction or a 2+8 cord construction. A twisting direction of the core is the same as that of the sheath, a forming rate Rc of filaments of the core is 103 to 120%, and a forming rate Rs of filaments of the sheath is 102 to 115%. A pneumatic radial tire using such steel cords in a belt layer is also disclosed.

Abstract: In a spinning machine with a tube magazine (1) several tube mandrils (3) placed on a conveyor are provided for the placement of a tube (4) at a time. At a removal station (2) a take-up device 21 to take up individual tubes (4) from the tube magazine (1) is provided. A nose (13) is provided at the free end of the tube mandril (3). The length (L) of the tube mandril (3) between conveyor and nose (13) is greater than the length (I) of the tube (4). The nose (13) has a smaller outside diameter (d) than the inside diameter (D) of the tube (4). A device to lift the tube (4) is provided at the removal station (2).

Abstract: A method for producing a compacted wire strand substantially triangular in shape for making wire rope includes the steps of (i) unwinding a central group of wires from a bobbin, the central group being substantially triangular, (ii) winding up a first layer of wires around the central group, each wire of the first layer being released from a first set of bobbins mounted on a first cage rotating about the central group, (iii) winding up a second layer of wires around the first layer of wires, each wire of the second layer being released from a second set of bobbins mounted on a second cage rotating around the central group, the first cage rotating at a speed 1.6 to 1.9 times faster than that of the second cage, (iv) compacting the strand made of the first and second layers of wires in a substantially triangular die by pulling the strand therethrough, and (v) rolling up the compacted substantially triangular strand on a drum.

Abstract: An aerostatic axial bearing (6) of an open-end spinning machine in which the bearing plate (601) of the axial bearing (6) is made of a permeable material, has a bearing plate (601) provided with one or several air channels (605), the task of which is to convey the air closer to the bearing gap (630) before it goes through the permeable bearing plate material. Thereby, the utilization of an additional choke can be avoided. Furthermore the mechanical properties of the holder bearing plate (601) are improved.

Abstract: A rotor type open-end spinning machine of a structure in which fibers moving slidingly on an inner wall surface of an outer rotor (2) are prevented from falling at a location where a fiber bundle is being stripped off from a fiber collecting/bundling section (7) while being twisted concurrently. An inner rotor (5) is disposed within the outer rotor (2) and positively driven independently of the latter. A delivery passage (20) is formed in the inner rotor (5) for guiding a fiber bundle (F) bundled in a fiber collecting/bundling groove (7) to a yarn withdrawing passage (14). An annular negative-pressure chamber (6) is formed radially outward of the fiber collecting/bundling groove (7) of the outer rotor (2) with air discharge holes (9) being provided for communicating the negative-pressure chamber (6) to the exterior of the outer rotor (2).

Abstract: Cooling of engine walls with fuel, wherein the walls have a structure which has an inner wall, to which hot gas is admitted during the operation, a colder outer wall, as well as a plurality of webs which connect the walls and divide the hollow space present there into a plurality of cooling ducts.The fuel is introduced in the cold state into the wall structure, is delivered through the cooling ducts while absorbing heat via the inner wall, and is subsequently used to generate thrust.A hot fluid flow taken from the engine is admitted during the operation from the outside to the "cold" outer wall of the wall structure, through which fuel flows, and this "cold" outer wall thermally expands as a result, or its thermal contraction is reduced.

Abstract: A low-cost rocket or thruster has a low-cost propellant injector, in which fluid fuel and oxidizer are injected into a combustion chamber. The walls of the combustion chamber are protected from the high temperatures of the combustion by a grain of solid propellant, the surface of which tends to melt andor vaporize in the presence of combustion temperatures, and thereby protects the walls of the chamber. The low-cost propellant injector may not mix the fluid fuel and oxidizer effectively, so that pockets of noncombusted gas may occur within the chamber. The ratio of fluid fuel and oxidizer is selected to be slightly oxidizer-rich, so that any pockets of unburned gas tend to be oxygen-rich. When the pockets come into contact with the solid fuel, the excess oxygen combusts with the gaseous solid fuel, and when the mixture is near stoichiometric, the fluid fuel combusts.

Abstract: The present invention relates to a thrust reverser for a turbojet engine having at least one thrust reverser door pivotally attached to a cowling so as to pivot about a first pivot axis between a forward thrust position, wherein the thrust reverser door closes a thrust reverse opening in the cowling, and a reverse thrust position in which the thrust reverse opening is opened. The thrust reverser door moves from the forward thrust position to the reverse thrust position about its pivot axis in a first pivot direction. The invention also includes a thrust reverser panel pivotally attached to the cowling so as to pivot about a second pivot axis between a forward thrust position and a reverse thrust position. In pivoting from the forward thrust position to the reverse thrust position, the thrust reverser panel pivots in a second direction about its axis, the pivoting direction of the thrust reverser panel being opposite to the pivoting direction of the thrust reverser door.

Abstract: An annular combustor system is disclosed in use with a radial turbine-type gas turbine gas generator, the system having an annular housing defining a single stage combustor, an external fuel/air premixer system having a mixing chamber and a fuel valve under the control of a controller, to provide a preselected lean fuel/air ratio mixture for introduction to the combustion zone of the annular housing. A separate compressed air valve under the control of the controller can optionally be included. Compressed air conduits are used to channel a portion of the total compressed air flow to the premixer and the remainder to the dilution zone of the combustor, and a fuel conduit is used to deliver all of the fuel to the premixer. Convection cooling of the annular housing is accomplished using compressed air without diluting the fuel air ratio in the combustion zone.

Abstract: In a coal gasification power generator, coal gas 500 obtained by gasifying a coal 100 by a gasifying furnace is introduced into a desulfurization furnace in which the coal gas 500 is desulfurized by limestone 400. A coal gas 501 after desulfurization is burned by a combuster 5 after it has passed through a dust removing unit 3 so that high temperature combustion gas 800 is supplied to a gas turbine. The gas turbine 7 drives a power generating unit. Exhaust gas 801 from the gas turbine is supplied to an exhaust gas boiler 8. Char 60a produced in the gasifying furnace and limestone 60b containing CaS emitted from the desulfurization furnace are burned in an oxidation furnace, and by using the resultant combustion gas, water vapor introduced from the exhaust gas boiler 8 is heated by a heat exchanger, and thereafter it is supplied to the gasifying furnace as a gas.

Abstract: The object of the invention is to create a simple and compact fuel feed for a gas turbine having an annular combustion chamber. In addition, the operational reliability of the gas turbine is to be improved.According to the invention, this is achieved when only one central main-gas feed line (15) and one central pilot-gas feed line (16) are connected to the annular combustion chamber (1). A main-gas ring line (13) and a pilot-gas ring line (14) are formed in the interior of the gas-turbine casing (5) or a burner hood (3) known per se. These ring lines (13, 14) are connected upstream to the main-gas feed line (15) and the pilot-gas feed line (16) respectively and downstream to the annular combustion chamber (1). (FIG.