Abstract: A boot structure, wherein each boot includes an inner and outer wall, having an enclosed pneumatic chamber, wherein the outer wall includes a whistle member arranged in communication through the outer wall with the chamber to effect whistling upon compressing of air within the chamber during walking to enhance and induce infants for amusement during such walking.

Abstract: An athletic shoe (20) includes a sole (22), an upper (25), and a tongue (26), as well as fasteners (28), such as shoelaces. Incorporated into the sole (22) of the athletic shoe (20) is a receptacle (30) for receiving and retaining a plug-in module (32) in a slide-in, releasably locking arrangement. The plug-in module (32) preferably includes a battery (62), a light emitting device (54), and electrical circuit elements (58, 60, 72) arranged to selectively connect the battery (62) to the light emitting device (54).

Abstract: Dredging apparatus (10) is provided with a flow conduit (18), a first pump (28), a second pump (30), and two valves (34, 44). The flow conduit (18) comprises a first leg (20) extending downwardly to a lower portion (22) and a second leg (24) extending upwardly from the lower portion (22). A fluidizing nozzle (32) is carried by the first leg (20). An intake aperture (26) is provided on the lower portion (22) and is directed downwardly. The dredging apparatus (10) may be used to dredge up material when the material is in a water suspension (48), and to probe through material by scattering material. The valves (34, 44) are operated to switch the apparatus between various modes of operation and to increase the effectiveness of the apparatus.

Abstract: A winged plow for moving snow or other materials with a vehicle has a support frame pivotally connected with one end of a plow vehicle. An elongated plow blade having two opposing ends is pivotally connected with the terminal end of the support frame for generally horizontal rotation between a centered position with the plow blade oriented generally perpendicular to the support frame and an angled position with the plow blade rotated substantially away from the centered position. One of a pair of plow blade wings is pivotally connected at each of the opposing ends of the plow blade for rotation between a closed position in which the wings project generally forward, the wings and plow blade defining a generally U-shaped assembly, and an open position in which the wings project in generally opposite directions, away from each other, effectively extending the length of the plow blade.

Abstract: A tubular housing includes a medially positioned intermediate web extending from a bottom wall of the housing to a transparent top wall thereof, having first and second message plates arranged for sliding in telescoping reception relative to the tubular housing, with the intermediate web and the message plates including abutment flaps in cooperative relationship to guide, display and limit projection of the message plates relative to the intermediate web.

Abstract: A magazine for reliably feeding cartridges to the chamber of a firearm without stovepiping. Each of the cartridges has a uniformly tapered casing holding a projectile which projects from the casing. The magazine has a pair of juxtaposed, cartridge-retaining lips; a spring for biasing the cartridges toward these lips; and a pair of juxtaposed cartridge guides adapted to contact the projectile. These guides preventing orthagonal rotation of the cartridge during feeding of the cartridge to the chamber and this prevent stovepiping.

Abstract: A safety lever pin for insertion into a safety lever pin receipt aperture of the sear assembly of an MK-19 grenade launcher such pin having a machined cylindrical body with an arm extending from the top thereof and structure to retain the safety lever pin within the safety lever pin receipt aperture to prevent its inadvertent falling out therefrom when the sear assembly is removed from the weapon and inverted.

Abstract: A motor case, including an aluminum barrel and a composite overwrap wound around the barrel to form a composite layer, which protects the operator against case failure during motor firing due to thermal effects caused by insulator defects or the like. The overwrap is formed of a fibrous material and a low temperature curable resin, the overwrap being mechanically bonded to the barrel. The method includes the steps of imparting texture to the outer surface of the barrel, wherein the textured surface includes jagged protrusions extending outwardly therefrom, wrapping an strip of fibrous material impregnated with a low temperature curable resin around the barrel, and curing the case.

Abstract: The device comprises a removable container (7) having an entrance opening (8) located opposite the window (2) for the ejection of the cases of fired cartridges of a firearm (1) having a carrying handle (4) with two spaced posts (5, 6) on the top of its frame, and all-azimuth temporary attachment means for attaching the container to these two posts comprising a fork (9) engaged around on post (5) of the carrying handle, a lock (10-12) with movable bolt (11) engaged around the other post (6), and a height retention stop (13, 12) associated with each of said two attachment means.

Abstract: A flat weed guard cover system is presented which has at least two pieces. Each separate cover has a cut-out section and one or more flaps near the cut-out section. In use, a first weed guard cover is placed around a vertical structure with the structure protruding through the cut-out section and the flaps surrounding the vertical structure. A second cover section is then placed over the first with the vertical structure again protruding through the cut-out section of the second cover and the flaps of the second cover on top of the flaps of the first cover. The flaps may be sealed together by Epoxy glue or any other suitable manner. The edges of the cover may be secured to the ground by means of landscape staples. Different geometric shapes and different positions for the cut-out are also presented. The covers inhibit growth of weeds or other plant material around the vertical structure.

Abstract: The present invention controls the concentrations of oxygen and carbonate gases in a hydroponic solution in a growing pool, by independently connecting online to a growing pool a hydroponic-solution feeder in the structure such that a plurality of semipermeable-membrane tubes to circulate liquid fertilizer (or water) is placed and arranged in a tank to circulate water (or liquid fertilizer), and a controller of dissolved gas concentration in the structure such that a hydroponic-solution conduit and a gas conduit are formed separately by arranging in the tank a separating membrane to pass only gas and prevent the permeation of liquid, and circulating oxygen and/or carbonate gas in the gas conduit of the controller of dissolved gas concentration, along with the circulation of the hydroponic solution in the growing pool through the hydroponic-solution conduit while appropriately controlling the concentration of liquid fertilizer in the hydroponic solution by means of the hydroponic-solution feeder, whereby the d

Abstract: A closure device automatically closes a sliding door and latches the door to prevent children from opening the door once it has been closed.

Abstract: A device for subdividing semiconductor bars into wafers comprises a grinding tool having two concentrically arranged grinding discs. A rough grinding disc is arranged inside of an outer smooth polishing grinding disc. The grinding tool grinds a lower face of a semiconductor bar to a smooth planar form. A first electrolytic truer operates in conjunction with the outer smooth polishing grinding disc while a second electrolytic truer operates in conjunction with the inner rough grinding disc. The truers are arranged to define an axial offset between the grinding surfaces of the grinding discs so that a lower face of the bar is smoothed. The device also has a slicing tool for slicing the bar into wafers which will have a smooth planar form.

Abstract: A rotating diamond core drill is contacted with a hard but brittle material, and by keeping contact relation with the material, drilling operation is continued to drill a hole to the material. Further, when a hole is bored, relative eccentrical motion is given between the diamond core drill and the material so that the whole inner circumferential surface of the hole can be contacted with the rotating diamond core drill, and drilling speed of the diamond core drill is reduced. Accordingly, drilling and cutting pressure applied to the material is reduced and no breaking-offs is generated.

Abstract: A centering and supporting apparatus is disclosed for use as a true centering steady rest for rotatably supporting a cylindrical workpiece during a machining or grinding operation. The apparatus has an internal centerline adjustment mechanism for adjusting the steady rest so as to support the workpiece at its dynamic working centerline. At least one, or a pair of support arms are slidably mounted on an operator body in a housing. Said one or pair of support arms each carries a side workpiece contact member, and the operator body carries a center workpiece contact member, and each workpiece contact member is engagable with the perimeter of the workpiece. The operator body is moved by a stroking means to urge the center workpiece to support a workpiece.

Abstract: Apparatus (10) and a method for finishing a workpiece (12) are performed by a first spindle (24) that rotatably mounts a milling cutter (28) about a central axis A and a second spindle (32) also mounted on the support for rotation about the central axis A to mount a grinding wheel. The first spindle (24) has an annular shape that extends around the second (32), and the apparatus includes a drive (38) capable of rotating the first spindle (24) at a slower rate than the rotation of the second spindle (32) such that milling and grinding operations can be performed at effective speeds. An axial slide (40) mounts the first spindle (24) for rotation and for axial movement along the central axis with the second spindle (32) on which the grinding wheel (36) is mounted located within the annular support.

Abstract: The blast machine consists of a self-propelled vehicle including a pair of independently driven magnetic treads capable of adhering to and traversing ferromagnetic vertical surfaces and the underside of ferromagnetic horizontal surfaces. The blast machine includes a blast unit having a pair of blast wheels supported on the magnetic treads for propelling the blast unit over ferromagnetic surfaces The blast unit is mounted so as to be able to pivot about two axes relative to the treads so that the treads can follow and traverse curved surfaces without changing the orientation of the blast unit. The treads can also flex allowing them to traverse surfaces having varying contours.

Abstract: The invention is an improvement in a modular wall system of the type having a forward standard for attaching a merchandising display thereto. Such system also has a rearward pair of laterally-extending flanges, a web extending between each flange and the standard and at least one opening in each web for wall panel attachment. The improvement includes at least one (and preferably at least two) "slideby" brackets mounting a panel to a web. Each bracket has at least one tongue extending through the opening for slide-and-release panel mounting. The panel and attached bracket are thereby mounted or demounted without tools.

Abstract: Apparatus to temporarily enclose multi-story structures such as municipal water towers during sandblasting and painting to thereby contain the debris and overspray from the environment. A plurality of booms extending in an array outwardly from the top of the structure are temporarily attached to the structure. Hoisting and guide cables extend downwardly from the ends of the booms out beyond the outermost periphery of the structure. A plurality of fabric or plastic panels are supported on a framework in turn attached to guides on the guide cables and the guides are attached to the hoisting cables. The guide cables are anchored to ground. The hoisting cables are connected to a common hoisting engine. The entire assembly of panels can be raised in unison about the structure for daily activities and then lowered at night or quickly lowered in the event of high winds.

Abstract: A special mobile kitchen provides an impact-resistant food service trailer and a rapid deployment, containerized field kitchen unit which can be quickly transported to a remote field location by helicopter or other aircraft as well as by ship or land transportation. Advantageously, the mobile kitchen has thermally insulating composite walls so that the kitchen unit can effectively function even at freezing temperatures and dessert conditions. The composite walls can be readily assembled from modular components comprising lightweight, high strength fiberglass panels for easy storage and economical transport. Desirably, the high tech panels are constructed with numerous access openings for ready access to work stations in the kitchen for better service, repair, maintenance, and adjustments and for enhanced supply and delivery of food. During storms and inclement weather, the access openings can be closed and secured with impact-resistant doors and shutters.

Abstract: Half window and door sections are fully manufactured at a manufacturing plant and transported to a job site where the half sections are interconnected by a pair of head splice members and a pair of sill splice members. The fully assembled window and door assembly then is installed in the wall opening.

Abstract: Exterior insulating building wall panels are disclosed. The wall panels comprise an insulating plastic foam board having disposed therein one or more structural reinforcing members strong enough that the wall panel can be used to span between primary structural framing members of the building without surface supporting assistance from any intervening structural element or supporting substrate. In the preferred embodiments, Truss T's are embedded in channels in the plastic foam board, parallel to each other, and are held in the channels by beds of adhesive and perimeter C-channels. The wall panels are mounted to the building primary framing members by clips which are e.g. welded to the primary framing member and are movably mounted to the structural reinforcing members in the wall panel. Methods of fabricating the wall panels, and methods of installing the wall panels on buildings are also disclosed, as well as the resulting building structural wall system.

Abstract: A door having an appearance of being entirely made of wood which is provided by panels of wood veneer adhesively secured to a core of thin gauge sheet metal panels. The sheet metal panels are adapted for this purpose by being imparted with horizontal and vertical fold lines which enable the panels to resist flexing and bending out of plane, to thereby contribute to anti-warping and other noteworthy features.

Abstract: A prefabricated insulation panel is provided by identical L-shaped panel halves where a lip on one panel half is secured to a sleeve of a second panel half, the lip of the second panel half similarly engaging the sleeve of the first panel half, providing a double sided panel which can accommodate an insulation layer between the assembled panel halves.

Abstract: This invention deals with certain specific building blocks that when used in combination, are essentially the only required building blocks to construct an entire building including foundations, if required, floors, bonding beams, supporting and non-supporting walls supporting and non-supporting partitions, and roofs.

Abstract: A wall corner composite comprising two glazed angled masonry building units. Each masonry building unit includes a glazed front face including a planar portion that is opposed a back face and a second segment that intersects the planar portion. The second segment forms an obtuse angle with the planar portion and has a length that is equal to or shorter than the length of the planar portion. A side face of the building unit is angled and intersects the second segment and the back face. This side face forms an obtuse angle with the back face and an angle with the second segment of the front face. Also provided is a mold and method for producing glazed masonry building units. In addition, a wall corner composite comprising one of the glazed angled masonry units and a mitred stretcher is provided. Also included is a masonry building unit for use in constructing a structurally reinforced corner that includes a cut out portion.

Abstract: In an interlocking beam construction in which hollow beams are notched and interlocked to define a completely rigid joint without fasteners, reinforcement inserts are slid into the beam to the notched area. The inserts are notched to conform to the notches in the respective beams so that the interlocking function of the beams is accommodated, but the weakness that would otherwise be produced at the joint due to the notching of the otherwise hollow beams is eliminated.

Abstract: This joint system is provided primarily for connecting elongated structural members which are made of materials which deter the use of conventional fastening techniques, and specifically for joining pultruded composite structural members composed of, for example, glass fibers and resins. The joint system in the first embodiment includes an elongated pultruded member which defines one or two re-entrant slots along its entire length, with the interior structure defining the walls of the slot or slots being configured to cooperate with the inserted seating end of another composite length such that when the length is inserted into one of the slots, the slot is first expanded slightly and then the walls of the slot snap back to lock with cooperating structure of the other structural member. In a second embodiment a sleeve-like equivalent of the slot configuration is set forth and lastly, a high-voltage power line tower constructed with the joint coupling as its central feature is described.

Abstract: The present invention relates to a device for joining concrete pole sections. The joining or splicing device is a tapered sleeve which is cast integrally with an upper concrete pole section and placed over a lower pole section which is tapered to receive the sleeve. The wedging action of the tapered sleeve and pole and the gravity load of the upper pole section establish a tight connection between the sections sufficient to transfer loads imposed on the pole structure.

Abstract: A vertical thermal C shaped metallic stud having a web with a pair of spaced apart generally parallel legs extending therefrom forming surfaces to receive exterior and interior wall structures. At least one of said legs including an upset struck outwardly from the leg to act as the bearing surface for wall material to be affixed thereto, so that a thermal space is created between the stud and wall material to prevent transfer or lessen the transfer of ambient exterior air temperature by thermal conductivity to the interior of a building using the thermal C shaped studs.

Abstract: An I-beam structure is made from discarded tire belts wherein the beam web is constructed from two car or truck tire belts joined centrally along their lengths tread to tread. Flange members are made of a two ply laminated structural material wherein each ply is a continuous car tire belt, and the two plies are bonded tread to tread along their lengths The two ply flange forming members are attached to the web by adhesive or vulcanization bonding.

Abstract: A hazardous waste material container storage building comprising a plurality of modules, each module having a floor for supporting containers of hazardous waste materials and tubes underlying the floor. In one embodiment, a first and second module are provided. The invention further comprises a mechanical joining mechanism extending through the first module tube and the second module tube for securing the first module to the second module. The first and second modules are joined to create a single, unitary hazardous waste material storage building. A related method is also disclosed. Another embodiment of a hazardous waste material container storage building comprises providing a plurality of modules, each having a securing member disposed on the roof of each module. Two modules are joined by connecting a fastener to the securing members of each respective module. A related method is also disclosed. The first and second embodiment may be used in the same installation.

Abstract: An apparatus for separating and making available crown corks or similar closure elements. The apparatus has a wheel that rotates about a vertical axis. The wheel is provided with carrier members that project radially beyond a periphery of the wheel and are disposed over a support surface. The carrier members successively move closure elements that rest on the support surface from a transfer position formed at the end of a closure channel to a receiving position, where a respectively available closure element is picked up and carried along by a closing mechanism of a closing machine. The support surface is a surface of the wheel, which rotates about the vertical axis. At least one magnet arrangement is effective at each carrier surface. This magnet arrangement locates the carried-along closure element during movement between the transfer position and the receiving position.

Abstract: A method of protecting an electronic component from the environment comprising the steps of providing a bag made from thermoplastic heat shrink material, inserting said electronic component into said bag, injecting a liquid polymerizable resin into said bag, heating said bag to shrink it about said electronic component and said resin, and curing said resin.

Abstract: Fully automated apparatus and method for manufacturing compact disc holders having a central rotating table about which conveyor tables, rotary tables, placers and other devices align to interdigitate and load compact discs into disc bases, to mate disc bases containing CDs to packaging sleeves, to load booklets into the packaging sleeves, and to handle, glue, fold and otherwise form a package containing CDs and booklets or literature.

Abstract: An apparatus for stretching a continuous plastic film in a packaging machine, in which products fed one after the other are wrapped and sealed within the continuous film, which includes a first conveyor belt, a transverse welding apparatus, and a second conveyor belt, in which the transverse welding apparatus has a horizontally traversing carriage which supports a pair of superposed welding bars and a pressing belt facing the second conveyor belt. The conveyor belts are driven by a speed variator via a pair of transmissions, the first of which drives an end roller of the first conveyor belt and the second drives an end roller of the second conveyor belt by way of a linkage which varies the speed of the two conveyor belts, there being also provided upstream of the transverse welding apparatus, both above the first conveyor belt and operationally linked to the vertical movement of the upper welding bar, elements for clamping the film onto the products wrapped in it.

Abstract: In apparatus comprising a rotor (30) and co-operating crop guide means (21), for selectively harvesting from uncut crops wanted plant parts by combing through the crop with resilient crop engaging elements (1) projecting outwardly from a rotor core structure (32), the inner and outer regions of elements (1) are particularly prone to wear, damage and distortion. By adapting mounting members (11) and/or clamping means (14), made of stiffer and/or more durable material than is provided in the intermediate yielding region of crop engaging elements (1), stronger and more convenient mounting of crop engaging elements may be provided and the shape of the important inner crop engaging profile protected. Alternatively or additionally protection of the susceptible regions, including the distal region of elements (1), may be provided by durable inserts embedded partly or wholly in the material from which resilient crop engaging elements are made.

Abstract: A steel cord (1) for the reinforcement of elastomers, especially for the reinforcement of breaker layers in a tire, said steel cord comprising two strands of at least two filaments (11, 12) each, said strands being twisted around each other and forming helicoids of a same pitch, the filaments (11) of the first strand having a pitch differing from the pitch of said helicoids and having a value of more than 300 mm, the filaments (12) of the second strand having the same pitch as said helocoids and being twisted in the same sense as said helicoids, all the filaments of both of said strands having a diameter between 0.08 and 0.45 mm, wherein the diameter of the filaments of one of said strands is at least 0.02 mm greater than the diameter of the filaments of the other of said strands. Preferably the diameter of the filaments (12) of said second strand is at least 0.02 mm greater than the diameter of the filaments (11) of said first strand.

Abstract: In the case of an arrangement for pneumatic false-twist spinning, it is provided that a sliver is divided in the area of the delivery roller pair of a drafting unit, is divided into two partial slivers. Edge fibers are spread away during and after the division. The divided slivers are then jointly or separately pneumatically false-twisted and are wound up as an individual yarn, as two separate yarns or as a double yarn.

Abstract: A rope chain formed with "diamond cut" facets which extend spirally around the longitudinal center of the chain. The chain can be formed of solid or hollow links, or of non-standard links not having a circular cross-section.

Abstract: A drive system for auxiliaries associated with a main gas turbine engine. The system includes auxiliary turbines for pneumatically driving the auxiliaries which are in turn divided into groups. A high pressure supply is tapped from the main engine or starter system and fed to the intakes of the respective auxiliary turbines. Controllers are associated with each of the auxiliary turbines to independently control the speeds of those turbines. Thus, the auxiliaries can be segregated between a group which is essential for starting the main engine, and a non-essential group. The former group is driven during starting while the latter group remains quiescent. Alternatively, the auxiliaries can be divided into one group mechanically coupled to the main engine and at least one other group driven by at least one auxiliary turbine.

Abstract: A gas and steam turbine plant includes a coal gasification plant, a gas turbine connected downstream of the coal gasification plant, a steam turbine having a water-steam loop and a steam generator connected downstream of the gas turbine. The steam generator includes a preheater connected to the water-steam loop, a heater of a high-pressure stage connected downstream of the preheater, and a heater of a low-pressure stage connected upstream of the preheater. An outflow line leads into the coal gasification plant and is connected to the water-steam loop downstream of the preheater, as seen in water flow direction. A heat exchanger has a primary side integrated with the water-steam loop between the low-pressure stage and the high-pressure stage and a secondary side connected parallel to the outflow line.

Abstract: A staged combustion apparatus for a gas turbine to lower the concentration of NO.sub.x and CO in the exhaust gases. Combustion occurs in a first and second stage, the first stage being sub-stoichiometric combustion and the second stage being above-stoichiometric combustion. Cyclonic combustion occurs in one of the first and second combustion stages and a swirling pattern of combustion occurs in the other of the combustion stages. Steam injection is provided to further lower the concentration of NO.sub.x in the exhaust emissions from the gas turbine.

Abstract: A power plant having a fluidized bed steam boiler for supplying steam for powering a turbine generator comprises low pressure and high pressure feed water heaters, and combustion air heater is provided with a gas turbine for burning sulfur containing fuels, with heat recovery economizers for reducing the exhaust temperature of the gas turbine and directing the exhaust gas from the gas turbine into the fluidized bed for reducing the emissions therein.

Abstract: A system for reducing nitrogen oxide emissions from a gas turbine engine is disclosed in which a portion of air in the air compressor is tapped and supplied to an inlet which introduces at least a portion of the tapped air into the primary zone of the combustion chamber. A control device is disposed between the tap and the inlet to control the air flow passing to the inlet. The inlet is located so as to inject the tapped air into the combustion chamber primary zone at the intersection of adjacent fuel sprays. The control device, which may be an adjustable flap valve or a three-way valve, may also be operatively connected to the throttle control for the gas turbine engine such that the control allows the maximum amount of air to pass into the combustion chamber under full power conditions. The control device is preferably mounted outside the engine casing enclosing the combustion chamber to allow easy access for assembly and maintenance.

Abstract: An improved gas turbine combustor is provided which reduces nitric oxide emissions through premixing of the fuel gas and air and feeding the mixture through a venturi, providing an air cooled passage around the venturi, and extending the passage downstream toward the combustion zone to optimize the stability of the combustion and reduce NO.sub.x and CO emissions.

Abstract: A combustor includes a dome assembly having radially outer and inner liners joined thereto and defining therebetween a combustion zone. The dome assembly includes at least one annular dome having a pair of axially extending first flanges between which are disposed a plurality of circumferentially spaced apart carburetors for discharging a fuel/air mixture into the combustion zone for generating combustion gases. An annular heat shield includes a pair of axially extending legs integrally joined to a radially extending face in a generally U-shaped configuration, with the face including a plurality of circumferentially spaced apart ports disposed concentrically with perspective ones of the carburetors for allowing the fuel/air mixture to be discharged therefrom through the heat shield.

Abstract: A coolant subsystem for a torpedo propulsion system having an external costion expansion engine. The coolant subsystem includes a valve which provides for one-way flow through the coolant subsystem. Inclusion of the valve prevents a backflow of exhaust gas into the coolant subsystem, thereby reducing the risk of torpedo failure due to engine overheating when the torpedo is launched in shallow water.

Abstract: A normal acceleration schedule limits the rate of engine acceleration A second acceleration schedule permits a higher acceleration, which causes higher thermal stress in the hot engine parts. The higher schedule is enabled only during a landing approach, thus limiting the number of such stress cycles, while achieving improved performance for the selected mode.

Abstract: A double annular combustor having concentrically disposed inner and outer annular combustors is provided with inner and outer dome plates. Each dome plate has an inner portion and an outer portion. A cowl structure having an inner portion, an outer portion and a middle portion is also provided. The cowl outer portion is connected to the outer dome plate outer portion, the cowl inner portion is connected to the inner dome plate inner portion, and the cowl middle portion is connected to the outer dome plate inner portion and the inner dome plate outer portion. at an outer end, an inner end, and a middle portion. Additionally, the inner and outer annular combustors may lie in distinct radial planes, whereby the dome plate of the downstream annular combustor includes a section extending upstream to the cowl middle portion.