Abstract: A handle slide control for a push implement that includes a cable running in a tubular handle. The tubular handle includes a slot and a knob slideably engaged in the slot. The cable, running generally in a loop, is fixed at a proximal end portion to an interior portion of the knob and is further fixed at a distal end portion to a component of the push implement. One preferred implement is a snowthrower and a preferred component is a snow directional chute. The tubular handle is hinged and may be folded with the cable to its compact form for storage. Pulley wheels direct the cable from the tubular handle to the body of the push implement. In operation, a sliding of the cable by the knob to an infinite number of positions in turn permits a wide variety of options for the component. Operation of the sliding cable is easily accomplished, even while squeezing the elongate kill bar switch.

Abstract: In an area limiting excavation control system for construction machines such as hydraulic excavators, excavation is smoothly and efficiently carried out within a limited area by setting an area beforehand where a front attachment (1A) is movable, calculating the position and posture of the front-attachment (1A) by a control unit (9) based on signals from angle sensors (8a) to (8c), calculating a limit value of the component of the boom-dependent bucket tip speed vertical to the boundary of the set area so that when the front attachment is inside the set area near the boundary thereof, the moving speed of the front attachment in the direction vertical to the boundary of the set area is restricted, and when the front attachment is outside the set area, it is returned to the set area, and modifying a boom operation signal so as to prevent the boom-dependent bucket tip speed from exceeding the limit value.

Abstract: A construction machinery having a first boom 1 rotatably mounted on a vehicle frame, a second boom 4 rotatably mounted on the first boom 1, a first boom cylinder 2 connecting the vehicle frame 3 and the second boom 4, and a second boom cylinder 5 connecting the second boom 4 and the first boom 1, characterized in that it is arranged in such a way that the drive of the working machines in the new link mechanism is controlled simply and with high precision by indicating the position or the velocity of the working machine leading end by subjecting a working machine leading end target value to coordinate conversion to the target angles for the first and second boom angles, determining the target cylinder length for the first boom cylinder 2 from the target angles for the first and second boom angles obtained by the coordinate conversion, and driving the first boom cylinder 2 according to the target cylinder length.

Abstract: A Snubber is used to damp the swing of the door on an excavator bucket to prevent the door form being damaged by repeatedly slamming shut. The snubber has housing which mounts to an excavator bucket and a shaft pivotally mounted in the housing and connected to an excavator door. The shaft turns when the excavator door opens. The housing has a cylindrical cavity around the shaft. The cavity is divided into two volumes by a dam and a wiper arm on the shaft. The wiper arm forces hydraulic fluid to flow through an orifice between the volumes as the shaft turns. The wiper arm has end seals which seal against end walls of the cavity. The end seals are forced outwardly by hydraulic pressure when the door is closing. A one-way valve allows hydraulic fluid to bypass the orifice while the door is opening. The snubber requires less maintenance than previous friction snubbers.

Abstract: Quick-assembly picture frames constructed from mitered frame sections (2) have unsightly join lines (6) at their corners. The appearance of such frames is enhanced by fitting a decorative corner unit (8) onto the frame corners which conceals join line (6). The corner unit is secured to the frame e.g. by tightening a grub-screw threaded through a wall (12) of the unit (8) against the rear surface (5) of the frame.

Abstract: A frame assembly has a backing board and elongate frame members positioned end-to-end around the periphery of the backing board. Each frame number has an edge member, with a pair of limbs positioned on opposite sides of the edge of the backing board, and clamp elements. Each clamp element has a formation which urges the limbs apart to induce a stress in the edge member which, in turn, urges the clamp elements towards the backing board. The formations of the clamp elements and the complementary edge portions of the edge member define retaining formations which retain the clamp elements captive between the edge member and the board and permit pivotal displacement of the clamp elements. The clamp elements have gripping formations configured to facilitate displacement of the clamp elements from their closed positions towards their open positions.

Abstract: An assembly for use on weapons includes an illuminated gun sight system to permit the user to aim and shoot the weapon in varying ambient light conditions and including a first light emitting element on a front sight and a second pair of light emitting elements on a rear sight of the firearm, a light generating source to provide light to the first light emitting element and the second pair of light emitting elements; the first and second light emitting elements including a light modifying element to produce a distinct luminous reference shape of uniform light intensity throughout a visible light radiating area. A servo system sensor is responsive to ambient light conditions for adjusting the intensity of light radiating from the light emitting elements so that the intensity of light radiating from the light emitting elements increases and decreases in direct relation to changes in ambient light conditions.

Abstract: A fishing accessory (20) which comprises a tool assembly (22) having a fishhook baiter (24) on one end and a fishing line cutter (26) on an opposite end. A pen shaped main body (28) is provided. A structure (30) in the pen shaped main body (28) is for receiving the fishhook baiter (24) of the tool assembly (22), so that the fishing line cutter (26) can be in position for use. A facility (32) on the pen shaped main body (28) is for accepting the fishing line cutter (26) of the tool assembly (22), so that the fishhook baiter (24) can be in position for use.

Abstract: A fish hook construction is provided including a hook having a barb and a first shank. A second shank is attached to the first shank and is spaced apart from the first shank to permit bait to be positioned on the first shank. A wing is positioned on the second shank which directs movement of the construction when a force is applied to a line attached to the hook construction.

Abstract: An extremely sensitive stainless steel bobber that will fit practically any fishing rod or pole. The bobber includes a first loop through which a fishing line passes; a second, very flexible loop for sensing pull exerted on the fishing line; a securing assembly for mounting the bobber on the end of a fishing pole or rod; and an indicator for signaling the presence of a biting fish.

Abstract: A casting apparatus for casting a flexible line such as fishing line. First and second elongate hollow tubes having open ends are disposed with the open end of one of the tubes extending telescopically into the open end of the other tube. An open container is disposed on the second hollow tube for holding the end of the flexible line therein. A spring member resides within the tubes and extends through telescopically overlapping sections of the tubes. A user inserts the end of a fishing line into the open container with a lure or bait attached to the end of the line, pulls the second tube backwardly against the spring member and releases the second tube, thereby permitting the spring member to thrust and second tube forwardly and launch the end of the line through the air.

Abstract: A floral kit and method including an open-mouthed container, a support and a rectangular box for holding a gift. The container holds a bouquet of flowers with their stalks projecting through the open mouth. The support has an upper cradle portion joined to a leg that projects downwardly from the cradle portion. The cradle portion includes back, bottom, front, and edges portions that cooperatively define a pocket with an opening of a predetermined size. The leg has a length sufficient to extend into the open mouth of the container to position the cradle portion of the support adjacent to the open mouth of the container. The box, for example a jewel box for a compact disk, is sized to fit at least partially within the cradle portion of the retainer. A block of floral foam can be removably positioned within the container for receiving and supporting the ends of the flower stalks to position the blossoms of the flowers positioned outside of the container.

Abstract: A method for producing a high-quality crop is described, which comprises irrigating soil with oxygen-removed water or water supersaturated with a non-oxygen gas, and the water is preferably drenched into the soil and/or irrigated onto the soil surface which is coated with a substantially air non-permeable sheet.

Abstract: A corn hybrid is evaluated by a seven-step method. The first step is to obtain a quantity of kernels of the corn hybrid to be evaluated. The kernels are then planted uniformly in a series of soil pots. The kernels in the pots are exposed to uniform germinating and growing conditions in an enclosed area so the kernels develop into seedlings. The most advanced seedling in each pot is selected and the other seedlings removed. The selected seedlings are then exposed to uniform growing conditions so they develop into mature plants. Various physical properties of the plants are then measured and compared to the corresponding physical properties of other corn hybrids.

Abstract: Plants of different genera or species are crossed after either pollen, anther or pistil is irradiated with an ion beam of a proton or an element up to uranium which have a LET of 5-10,000 keV/.mu.m and are applied in a dose range of 1-2,000 Gy.

Abstract: A pet door assembly for insertion within a hole formed in a wall having a pair of exterior frames and an inner frame. The exterior frame members mount to opposite sides of the wall and define an opening for allowing passage of a pet. The central inner frame is located between the pair of exterior frames and define an opening generally aligned with the openings in the exterior frames. Each of the exterior frames includes a rear surface having a plurality of fastener sleeves extending outwardly therefrom. At least one of the sleeves has a longitudinally extending slot formed therein. Additionally, the central frame has at least one fastener bracket formed along opposed edges of the inner frame. The bracket includes one or more fastener-receiving apertures having a key portion that is configured to seat within the slot formed within the fastener sleeve. The mating engagement of the fastener sleeve and the key prevents movement of one or both of the exterior frames relative to the inner frame.

Abstract: A rigid bearing staff, substantially C shaped, the central element of which is hinged along the axis passing within the thickness of a wall of a wardrobe, fitted with two arms the free ends of which are rotatingly linked to two opposite pins anchored to end of the medial axis, or quasi medial axis, lying in the internal part of a door to be governed, while two other arms, next to an appropriate distance from and to one side only common to the previous ones to which they are parallel and of equal length, have their four ends rotatingly linked to other two axes again parallel to the previous ones and located one in the rigid structure of the wardrobe and the other along the inside of the same door: all this constitutes the functional design of two articulated parallelogram hinges, superimposed and distanced, rigidly and directly linked and invisible inside and on all external sides of a wardrobe.

Abstract: The present invention is directed to provide an improved structure of a sash of the side door for automobiles, wherein rigidity of the door sash, hence rigidity of the side door as a whole, is augmented without increase in weight of the door sash, and without causing hindrance to the surrounding view. Such structure is realized by the box-shaped transverse sectional part (45) provided over the entire length of the door sash (4, 4A, 4B, 4C), of which the size (w) in the breadthwise direction of the vehicle is gradually changed, thereby progressively reducing thickness (W) of the door sash (4, 4A, 4B, 4C) in the breadthwise direction of the vehicle.

Abstract: Disclosed is a chimney access structure which is particularly well adapted for use in grounds subject to freezing. This structure incorporates chimney provided with an upper end on which is mounted an adaptor provided with a vertical through-hole and with a countersink hole of greater diameter that the through-hole. The countersink hole is preferably frusto-conical and extends coaxially within the through-hole at a given depth from the upper face of the adaptor. This countersink hole defines a sleeve with upper portion of the adaptor which is provided with an inwardly projecting flexible sealing ring. A floating head is slidably mounted into the sleeve. This head has a vertical through-hole coaxial with the one of the adaptor. The floating head also has a lower portion provided with an outer lateral surface whose shape and size are selected to fit into the countersink hole of the adaptor and sealingly slide within the same thanks to the sealing ring.

Abstract: An air beam made up of a cylindrical braid and lined with a gas-retaining bladder is improved in its resistance to wrinkling or buckling by incorporating linear bundles of fibers extending parallel to the axis of the cylindrical braid within the cylindrical weave and spaced around the circumference of the cylindrical weave. Another implementation is used when the required strength of the axial bundles implies that they will not fit within the braid, in which case, the bundles are made up into external straps retention means is a coating applied to the braided fibers.

Abstract: A fascia member and a soffit member are useful for trimming a building structure. The fascia member has a generally vertical panel and a generally horizontal flange projecting from the generally vertical panel at a lower corner. The generally horizontal flange has a locking lip extending along a distal edge. The soffit member has an edge portion having a plurality of spaced locking lips adapted to be engaged with the locking lip extending therealong. A channel member extending along the generally horizontal flange is employed for confining the edge portion of the soffit member within the channel member, when the locking lips of the edge portion of the soffit member are engaged with the locking lip extending therealong, so as to interlock fascia member and the soffit member. The fasca member and the channel member may be a single piece or two separate pieces. In either instance, the channel member has an upper wall, an inner, vertical wall, and an upper wall.

Abstract: The top wall of the horizontal spout section of a downspout assembly is cut away at the inlet end to create a notch such that interference with the top wall of the outlet end of the elbow section will be avoided when the horizontal section is pivoted to a lowered position. A hinge is fastened on top of the elbow and horizontal sections over the notch. The hinge includes half sections with each having oppositely disposed leg portions functioning as a saddle to straddle the elbow and horizontal sections. One of the hinge half sections includes a pair of spaced apart sleeves between which a single sleeve on the other half section is received. A bolt extends through the sleeves and draws the pair of sleeves frictionally against opposite ends of the single sleeve to lock the horizontal section in a raised over center position. A slot extends from the inner end of the one half section between the pair of sleeves to allow the pair of sleeves to be drawn together.

Abstract: A combination roof louver that ventilates an attic and an attic access hatch for providing entry by a person into the attic. The device consists of two main parts, a base and a cover. The base of the device provides an entrance into an attic, and has a flange around its periphery which is to be installed under a roof covering. The cover has ventilating apertures in a soffit located underneath an outside edge. The cover pivots to open and close. The cover can also be removed.

Abstract: A truss having an integral hold down strap can be secured to the wall of a structure. The hold down strap is held between two truss elements, such as a web member intersecting with a lower chord of the truss. The hold down strap is secured to the truss by a nailing plate which can be one of the same nailing plates used to connect other elements of the truss together. The nailing plate teeth penetrate the hold down strap and one of the truss elements to secure the strap to the truss for shipment to a construction site. The hold down strap extends from between the truss elements down into engagement with the wall on which the truss rests where it may be secured to the wall.

Abstract: A staircase hoist for wheelchair users includes a hoist carrier plate having a pair of brackets, two guide rails in slidable engagement with the pair of brackets to maintain the hoist carrier plate in a prescribed attitude, the guide rails being disposed vertically parallel to one another on a staircase wall along an angle of flight of the staircase, a drive motor on the hoist carrier plate, a plurality of arms radiating from a drive shaft rotated by the motor that rotate in opposition to the staircase wall, a tip of each arm having a roller, and a plurality of drive guides disposed between the guide rails at a prescribed distance from the wall that sequentially engage with the rollers on the arms. The drive shaft that rotates the arms is set at an angle to the staircase wall to prevent rollers that have terminated engagement with a drive guide coming into contact with other drive guides while being rotated around into position for the next engagement.

Abstract: A window assembly for use in mass transit windows has a frame, a windowpane sized to fit within the frame, a removable sacrificial glazing panel covering or protecting one side of the windowpane, and a self-locking seal assembly biasingly securing the removable glazing panel towards the windowpane without the need for screws, drills or welds. The seal assembly has a first interlocking arm provided with a locking lip, and a second interlocking arm with a receiving groove which is biased from its free position into a locking position in locking engagement with the locking lip of the first arm. Preferably the locking arms are unitary with the seal assembly. The locking arms may be disengaged and the sacrificial glazing removed and a new sacrificial glazing panel installed without removing or disassembling other components of the window assembly.

Abstract: The present modular foundation construction includes a plurality of interconnectable extruded modular forms configured to be selectively arranged and interconnected in the shape of a customized building foundation. The plurality of forms, when the shape of the customized foundation, define a series of interconnected first cavities extending around the shape for receiving poured concrete and further include a series of second cavities extending along the first cavities filled with insulation to form a substantially continuous insulative layer around the shape. Male and female connectors on the end wall sections of the forms provide a secure interconnection.

Abstract: An improved roof drain having a wide flange, a base, and a means to secure attachments such as strainers to the base. The attachment means is characterized by being simple and permanent. In one embodiment, the strainer contains a peripheral flange which is rolled-into the large horizontal flange of the base during fabrication. Other attachments such as gravel stops and the like may be attached in a similar fashion. The base is an integral piece typically made from spun aluminum. An alternative embodiment includes a two-part generally annular clamping ring, the lower portion of which includes integral threaded studs. The lower portion of the clamping ring is permanently attached to the base again by being rolled into the large flange on the base.

Abstract: A composite recovery board (10) includes a foam core (11) selected from the group consisting of polyisocyanurate and polyurethane materials and mixtures thereof; a facer (15), applied to one major surface (13) of the foam core and formed from a sheet selected from the group consisting of reinforced polymer material and reinforced cellulosic material, wherein the polymer material and cellulosic material are reinforced with a material selected from the group consisting of glass strands, glass fibers, and mixtures thereof and, gypsum board (14), applied to the opposite major surface (12) of the foam core. A method of reroofing a roof includes applying composite recovery boards of the present invention to a roof deck; and, applying a weather protective layer over the recovery boards.

Abstract: Foam forms for use in making a concrete wall are disclosed together with a method of making the forms. The forms are stackable to form a cavity that receives the concrete. Each form has two identical panels. The panels are molded separately by first placing a structure, consisting of backing plates that will be along one side of the mold, connecting members that will be along the opposite side of the mold and an apparatus that connects the backing plates to the connecting members, in the mold. The mold is then filled with foam which cures and produces a panel with the backing plates, connecting members and apparatus molded into the panel. The molded panels are then shipped to the job site where the forms are assembled. Each form is assembled as follows: The connecting members on one panel are interconnected, by tieing means, to the connecting members on a second panel to provide a form.

Abstract: An ornamental coating and process for applying the coating to a substrate includes mixing a first batch of liquid mortar composed of sand, cement and an aqueous solution of acrylic resin, and trowelling or spraying a first layer of the liquid mortar onto the substrate and allowing the liquid mortar to cure. A second batch of liquid mortar is mixed which is the same as the first except that it contains a color pigment contrasting with the color of the first batch. A template defining a pattern of grout lines is placed over the cured first batch and the second batch of liquid mortar is trowelled or sprayed over the first batch and the template as a second layer and allowed to cure only to the extent that the second layer is firm, but not hard. The template is then removed, removing any part of the second layer immediately above the template thus exposing lines of the cured first batch which then appear as grout lines between areas of colored mortar which appear as bricks, flagstone or tiles etc.

Abstract: A seal for covering a track in a floor is disclosed which is flexible in the upward direction to permit an arm or the like moving on the track to pass through the seal and is considerably less flexible in the downward direction into the channel and capable of supporting a person or equipment traversing the channel. The difference in flexibility in the two directions is obtained by providing a relatively thin material in the area of the hinge section and a relatively thicker material in the cover portion extending over the channel. The relatively thicker material section may be formed by affixing a narrow strip of flexible material to a wider strip of the material. The narrow strip may be affixed to the wider strip by welding or fusing.

Abstract: A face mounting infilling system for walls and linings of buildings. The infilling elements are designed at their ends in such a way that they may be clamped to the upper edges of lower linking units, which in turn are designed in such a way that upper linking units may be snap-locked thereon.

Abstract: A plank assembly system having two elements: one being a plank member having a horizontal walking surface, two downwardly projecting vertical legs, each vertical leg having a barbed fastener, and a downwardly projecting center support. The second element of the device is a U-shaped retaining clip having a horizontal mounting surface which is affixed to a joist system, and two upwardly extending vertical legs, each upwardly extending vertical leg having an inwardly projecting barb sized to interlock with the barb on the downwardly projecting vertical leg of the plank member. The retaining clip is also made of extruded PVC and is cut to a width sufficient for proper installation and strength of the overall platform. A plurality of retaining clips are affixed to a joist system of either metal, plastic or wood using securing means such as screws, or nuts and bolts.

Abstract: A fire resistant composition for forming a fire resisting lining is characteristically and substantially composed of ettringite contained as a main ingredient. A panel that is attachable to a building body so as to form an external wall thereof is composed of a base plate and the fire resisting lining that contains ettringite as its main ingredient and covers the base plate. A structure of an external wall of buildings, the structure has the panels attached to the building body to form a plane and having their sides adjoined one to another, and the base plate in each panel has a periphery not covered with the lining. A groove-shaped cavity appearing between the adjacent lining edges facing one another is filled with a caulking material, so that the fire resistance afforded by the composition and the panels is further enhanced.

Abstract: An improved log siding system capable of providing an improved water-shed between the individual log siding members as attached to a building. A moisture seal junction and a flex gap are formed between each adjacently disposed log siding member. Each moisture seal junction extends from the lower longitudinal edge of the exterior surface of each log siding member upward (vertically or angled inward) toward the respective flex gap, which extends therefrom toward the interior surface of the log siding members. The interspacing of each flex gap, in conjunction with a release cut formed in the interior surface of each log siding member, varies in response to structural deformations experienced by the log siding members due to variations in moisture content and/or temperature so as to maintain flush seal of each moisture seal junction. This effectively thwarts the ingress of moisture behind the log siding members so as to reduce the likelihood of swelling, rotting, and cracking over time.

Abstract: A prefabricated framing unit for constructing non-load-bearing walls and partitions is disclosed. The framing units have vertical studs which both pivot in respect to the horizontal members, to allow collapsing of the unit, and telescope to allow the unit to be raised to fit the space between ceiling and floor without measuring and cutting to height.

Abstract: A tape applicator having a displaceable front contact roller movable from an extended position to a retracted position and a detector positioned on the tape applicator so that movement of the tape with the front roller relatively positions the detector and tape in sensing position wherein the detector may detect the presence or absence of a tape along a tape path leading to the front roller. The detector is only activated when the tape and detector are in the sensing positions permitting detection of the tape. This is preferably accomplished in a conventional tape applicator with a cutoff knife by mounting the detector on the cutoff mechanism so that both the detector and the tape are moved toward each other to assume the required relative positions wherein the detector can detect the tape and activate a warning system in the event no tape is detected. Also disclosed is a tape applicator having a detector to sense when the tape cutter has failed to cut the tape.

Abstract: A plant package assembly, comprising a pot containing a floral grouping and a flexible sleeve having detaching elements at preselected areas, the sleeve further comprising a bonding material which connects the sleeve to the pot when the pot is positioned within the sleeve, the sleeve being positioned about the pot and a lower portion of the sleeve closely surrounding and encompassing the pot, an upper portion of the sleeve extending upwardly from the pot and substantially surrounding and encompassing the floral grouping contained within the pot, at least a portion of the sleeve being removable via the detaching elements, leaving a portion of the sleeve which is a decorative plant cover.

Abstract: A web withdrawn from a coil is split to form tray-forming and head-encircling strips which are passed vertically across a path of a group of articles so that the strips are entrained by the group and pass under and over the group to be connected together at a rear portion into closed bands. The tray-forming band projects beyond the edges of the group and can be folded to form the tray. The feed conveyor advances the group of articles to the packaging station from which the group of articles is transferred to the discharge conveyor operating at a right angle to the feed conveyor.

Abstract: A continuous solvent free gelatin encapsulation apparatus and process includes an oil roll back assembly (20) for applying a controlled amount of a food-approved lubricant to a first side of the gelatin ribbon and an applicator guide bar assembly (40) for applying a controlled amount of food-approved lubricant to a second side of the gelatin ribbon. Two opposing food-approved lubricant coated gelatin ribbons are then united in a die assembly (50) to form gelatin capsules which are then dried and recovered.

Abstract: In accordance with the present invention, products are contained within a continuous cylindrical sleeve in a low- or no-tension condition. Products are captured within the sleeve during its formation. The sleeve forms a continuous path encircling the product(s) in at least one plane through the products and package, defining an axial direction normal to the plane and a circumferential direction around the product(s) within the plane. One or more axially-extending pleats are unitarily formed from the material comprising the cylindrical wall of the sleeve, such that the circumference of the cylindrical sleeve is reduced. By reducing the circumference of the cylinder the interior volume of the sleeve, and thus the finished package, is reduced, thus subjecting the products within the package to a compressive force. The compressive force is imparted by a uniform reduction in circumference resulting in a uniform inwardly-directed product compression.

Abstract: Sample bags are produced from webs of film material by forming longitudinal seams and longitudinally spaced transverse seams and by filling the bags with a sample product between forming the transverse seams. In order to make the bags easier to handle, the longitudinal seams are thickened so that the thickness of the seams is equal to the thickness of the center of the bag. Thickening is done by rolling or folding the seams or by adding frames or strips of additional material either between or outside the seam portions of the webs. The resulting bags are more easily stacked, handled and inserted into publications for distribution.

Abstract: A handling apparatus has a bundling apparatus, which stacks and bundles each predetermined number of securities from which information is detected by a discriminating section. The bundling apparatus includes a stacking plate for stacking the securities thereon and a rotatable sweeper for moving the stacked securities together with the stacking plate in a manner such that the securities are held between the sweeper and the plate. In a bundling position, a bunch of securities held on the stacking position is curved by a curving device, and is then wound and bundled with a band by of a bundling mechanism.

Abstract: A safety device for preventing a rider from going over the shoulder of a horse when the horse stops suddenly, wherein the device comprises a strap tied around the body of the horse, a hollow rigid rod connected by a detaching device to the strap, and a rope retractably held within the rod and connected at one end to the waist of the rider and extendible to a first length to loosely be connected to the rider in the normal sitting position and to a second length to tightly hold the rider in a stretched position out of the saddle and over the sholder of the horse when the horse stops suddenly. The detaching device enables the rod holding the rope to move a certain range of angles to either side of a line extending from the end of the horse to the head of the horse, and when the rod travels beyond that range detaches the rod from the strap so that a rider can fall freely to the side of the horse without restraint from the rope.

Abstract: In core yarns, a) the polyester material of the core filaments has an average molecular weight corresponding to a relative solution viscosity of at least 1.9, and b) the core has a specific strength of at least 60 cN/tex, the core yarns producing a seam length to rupture of more than 800 cm in a sewing test under aggravated conditions.The core yarns are obtainable by a process comprising the measures of: i) producing multifilament yarns based on polyesters having an average molecular weight corresponding to a relative solution viscosity of at least 1.9 by melt spinning polyester with a takeoff speed of at least 1500 m/min.

Abstract: A yarn heating apparatus, interposed between a false twist apparatus imparting twist to a synthetic fiber yarn and a yarn feed apparatus feeding the synthetic fiber yarn to the false twist apparatus, is designed to heat the synthetic fiber yarn traveling on a yarn travel path extending from the yarn feed apparatus to the false twist apparatus. The yarn travel path includes a twist existence path section through which the twist imparted to the synthetic fiber yarn extends continuously. The yarn heating apparatus comprises a yarn heat member unit formed with a yarn heat channel defining in part the twist existence path section of the yarn travel path for heating the synthetic fiber yarn passing through the yarn heat channel, and a plurality of yarn guide members located in the yarn heat channel of the yarn heat member unit in spaced relationship to one another for guiding the synthetic fiber yarn through the yarn heat channel of the yarn heat member unit.

Abstract: A yarn spindle is provided having a housing, a spindle drive shaft rotatably mounted in the housing, and a cylinder fixedly attached to the spindle drive shaft. The cylinder includes a downwardly extending circumferential skirt, with the skirt and the spindle drive shaft defining an annular space between them. The skirt has a bottom edge with at least four thread cutting slots disposed therein, the slot being a substantially rectangular notch through the thickness of the skirt. The at least four thread cutting slots are equally spaced about the bottom edge. The spindle also includes a waste thread spool statically mounted on the housing for shielding the spindle drive shaft against contact with waste yarn. The waste thread spool includes a frusto-conical barrel having a top end, a bottom end, an axial hole, and an inclined outer wall. The outer wall is angled approximately 30 to 35 degrees from the vertical and has a substantially vertical groove formed therein.

Abstract: A device for safely attaching sections of a rocket motor is disclosed. The device is constructed such that if the temperature of the rocket motor is elevated to the point where ignition of the propellant within the rocket motor becomes a significant danger, the device allows the sections of the motor to disengage. The device comprises a bimetallic retaining ring which either contracts or expands in diameter upon heating. The retaining ring is positioned in such a manner as to lockingly engage two sections of the rocket motor at normal temperatures. At elevated temperatures, however, the expansion or contraction of the bimetallic retaining ring causes the sections of the motor to unlock from one another, such that if the propellant ignites the sections will disengage and the rocket will be rendered non-propulsive.

Abstract: The invention relates to a combustion chamber (6) for a gas turbine (6, 18, 19) through which a flow (2) of compressed air is allowed to pass, flowing along an axis (3) from a compressor part (18) to a turbine part (19), said flow (2) having a swirl relative to the axis (3). In this arrangement, an annular passage (4) is provided at the inlet of the combustion chamber (6) having an inflow part (8) for separating a partial flow (1) from the flow (2), which comprises means (11) for removing the swirl from the partial flow (1), and which communicates with the cooling passages (14) for cooling the combustion chamber (6) as well as with pilot burners (7) for stabilizing combustion in the combustion chamber (6). The combustion chamber (6) is configured in an especially favorable manner with regard to avoiding thermodynamic losses and permits the separation of a partial flow (1) which is outstandingly suitable both for cooling purposes and for stabilizing purposes.