Abstract: A pneumatic dredger bulk conveyor of the type wherein a conveyor line is formed by a first circular outer tube and a first inner tube telescopically slidable therein and a pressure line is formed by a second outer tube fixed to the first outer tube and a second inner tube telescopically slidable in the second outer tube in coordinated movement with the first inner tube, the improvement which comprises an upper circular guide member formed at the upper end of the first inner tube and closely spaced from the first outer tube defining a first circular interspace therewith, the first inner tube having below the upper guide member a polygonal profile forming a second interspace with the first outer tube having a greater cross sectional area than the first interspace and constituted by a plurality of first segmented passages of greater width than the first interspace and each of which is bounded by an arc of the first outer tube and a plane of the polygonal profile.

Abstract: Dental radiographic film holder in one embodiment comprising two sheets with aligned openings and detachable portions adjacent the openings, to be detached to form larger openings for larger films. The openings in the back sheet include widened edge portions for insertion of film into the holder. In another embodiment a single sheet has first front and back, spaced apart, sheet portion to form slots to receive films, sections of the sheet portions being detachable to form a larger opening that is bounded at least in part by second, spaced apart, front and back sheet portions.

Abstract: A semiautomatic hand gun employs a segmented firing pin which reduces the possibility of the firing pin breaking due to fatigue.

Abstract: A fishing line sinker which is composed of a block of metal one end of which includes an opening and the opposite end of which includes a protruding wire member. The wire member of one block of metal is to be inserted through an opening of a second block of metal to thereby connect together blocks of metal for increasing the weight of the fishing line sinker. Additionally, a mold is provided for making the sinker which takes the form of a pair of pivotally interconnected members each of which has a mold cavity. The mold cavities can be used in a connected arrangement or in an individual arrangement.

Abstract: A helical member comprises a continuum of coaxial helixes disposed in spaced longitudinal relation which define an axial aperture that is adapted to receive an external connecting device such as a line or anchor pin. An elastic core is disposed within the aperture in frictional engagement with at least one of the helixes. One end of the core is attached to the member and a free end extends out of the aperture. Gripping the free end and stretching the core reduces its cross-sectional dimensions which releases the frictional engagement and provides sufficient space to admit the connecting device. Releasing tension on the core substantially restores its original dimensions and releasably grips the connecting device between the core and at least one helix to provide a simple, yet effective attachment.

Abstract: A fishing bobber which may be readily and adjustably secured to a fishing line, said bobber comprising a buoyant body having a top and a bottom, a bearing extending from the top and the bottom of the body, each bearing having a vertical slot therein, a resilient member positioned in a cavity in the bearing intersecting the bearing vertical slot, a keeper rotatably carried on each bearing, the keeper and body each having a slot for alignment with that in the bearings, and a spring lock on each keeper whereby upon insertion of a line in the aligned slots, rotation of each keeper will cause the spring lock to force the line into engagement with the resilient member in each bearing to retain the line and the bobber in fixed relative position.

Abstract: An element for detachably interconnecting toy units comprises two tubular parts separated by a radially extending flange.The element is resilient in radial directions and each of its two parts is between its ends provided with sections having reduced outer diameter.

Abstract: A rollable toy having a body with axles having rollable members thereon. Each axle has a stepped, resilient, headed male portion and a female portion with which it mates, each portion having an outer socket for receiving a boss on a spherical wheel member. The wheels may be fixedly or removably mounted to the axles and may have loose contents creating a sound when rolled. A face member may be removably mounted on the body.

Abstract: A case having a hinged top supporting a mirror and battery-powered lighting structure including rows of at least three transparent bulbous globes along opposite side edges of the mirror, a single electric bulb adjacent each row of globes, a reflector positioned opposite each globe and rearward of the bulb and adapted to reflect light from the single bulb into each row of globes and commonly through all of the globes to illuminate said mirror from opposite edges, the case having a compartment in which a doll head with a wig and a base is storable in horizontal position in the compartment and is mountable in upright position upon support mechanism in the case selectively to face the mirror when the top is vertical or the front of the case.

Abstract: An umbrella-shaped topiary framework has a supporting post simulating natural wood bark along its outer surface, at the upper end of which is supported an umbrella-like framework upon the top of which is received a circular umbrella pad fabricated of face-to-face sheets of plastic, open-mesh sun screening material sandwiching thereinbetween a layer of sphagnum moss. The supporting post as well as the umbrella-like framework are comprised of interfitting parts of a molded synthetic plastic material for compact storage and transportation, and durability in use. When vertically supported in soil at the base of the supporting post, vines or climbing plants rooted in the soil grow up along the outside of the post and under and over the umbrella pad at the top of the post to form an unusually attractive umbrella topiary.

Abstract: A subterranean, visually unobserveable, landscaping device for watering and fertilizing plant, tree, and shrub roots. The device is especially useful with weed inhibiting ground covers placed around the plant growth.A special compartment inhibits weed growth by laterally surrounding the hole in a ground cover and stores fertilizer that is dispensed incrementally over a period of time through interaction with water flow through the device.

Abstract: A process for the micropropagation of plant material. The process comprises excising a shoot tip having a length in the range 0.6 to 3 millimeters from a bud of the plant. The excised tip is placed in a first nutrient medium containing benzyl adenine to induce shoot elongation and the elongated shoot decapitated. The decapitated shoot is placed in a nutrient medium to stimulate lateral shoot induction and elongation. Shoots one centimeter or more are excised and the excised shoots are implanted in a rooting nutrient medium for root production.

Abstract: A hydraulically operated tailgate door which is pivotally hinged to move in an arc about the door hinge until the door is substantially vertical in position adjacent the door frame. Means are provided to enable the door to be moved substantially parallel to the door frame during movement from the closed position to a locked position. The same hydraulic cylinders provided for raising and lowering the door are also utilized for locking and unlocking the door.

Abstract: A device for working the surfaces of objects, such as abrading and brushing machines and the like comprising a supporting surface for the object to be treated and at least one working member arranged at a distance from the supporting surface and rotatably driven about a shaft parallel to said supporting surface and being movable in an axial sense in a reciprocatory manner by driving means, wherein a counterweight is fastened to a rocking arm journalled in the frame of the device and linked pivotably to said working member, in order to damp the reciprocatory movement of the working member.

Abstract: A method for polishing a workpiece comprising the steps of providing a polishing element formed of a volume of abrasive containing resilient material and causing the polishing element to move rapidly against a workpiece surface under pressure. Apparatus for carrying out the method is also disclosed.

Abstract: The invention provides a method of apparatus for refinishing a vehicle brake disc. The brake disc is rotated while in place on the vehicle and is brought into contact with one or more abrading discs, which are rotated as well, thereby grinding the brake disc. The abrading discs are maintained in contact with the brake disc by being mounted on a holder which is secured into a portion of the vehicle which is fixed with respect to the brake disc. The preferred arrangement is to attach the holder to the brake caliper mounting associated with the brake disc to be ground. In a preferred embodiment two abrading discs are used, and they can be adjusted to be slightly out of parallel with one another, so as to grind the brake disc with more pressure in a desired region than in another region.

Abstract: A polishing bath is charged with polishing materials so that workpieces may be barrel-polished. Supporting members for holding the workpieces in the polishing bath are provided and are set under their free or rotatable condition. According to this barrel polishing operation, the workpieces are prevented from colliding against one another during the polishing operation, thus raising no fear of forming the products with scars and dents.

Abstract: A sanding tool includes a holder used in combination with a narrow strip of sandpaper and having a handle portion and a spatulate portion extending from the handle portion which terminates in a squared-off end. The spatulate portion has a first slot therethrough adjacent the squared-off end and extending transversely of the spatulate portion, and a second slot in between the first slot and the handle portion so that the sandpaper strip can be passed through the second slot, over the end, through the first slot, and back through the second slot.

Abstract: A seating and guard rail structure for bleachers having seating sections which may be compacted together to occupy a minimum space during storage and having guard rail units which may be compacted along with the seating sections. Mechanisms are included for turning the guard rail units when the seating sections are compacted to facilitate their storage and for turning the guard rail units back again to their normal upright position when the seating sections are expanded in preparation for use; also locking mechanisms are provided for locking the guard rail units in their upright positions when the seating sections are fully expanded for use, and means are provided for unlocking the guard rail units when the seating sections are compacted.

Abstract: A luminaire support apparatus for suspending and selectively positioning a pendant luminaire from a suspended ceiling is disclosed. The luminaire mounting stem may be positioned directly beneath a support member of the suspended ceiling. The support apparatus includes a base for carrying a ballast and an electrical junction box, and is selectively positioned between adjacent, parallel support members along a first axis parallel to the ceiling. A bracket which receives the luminaire mounting stem is mounted to a cylindrical stem projecting through a ceiling tile. The bracket receives a lower end portion of the stem, normally axially aligning the mounting stem with the cylindrical stem or offsetting the axial alignment should the mounting stem be positioned directly beneath the support member. The base receives a pair of clips selectively along a second axis parallel to the ceiling and perpendicular to the first axis. The clips mount the upper end portion of the stem to the base.

Abstract: A frameless enclosure assembly, supported by the structural assembly of a pre-engineered building having first and second support members, comprising a flexible membrane; a membrane attaching assembly attaching a first end of the facing membrane to the first support member, and attaching a second end of the facing membrane to the second support member and extending the facing membrane substantially taut therebetween; an insulation layer of compressible insulation material supported by the facing membrane; a panel member positioned substantially parallel to the insulation layer to dispose same between the panel member and underlaying structural assembly; and a panel securing assembly for securing the panel to the structural assembly and transferring load from the panel member to the structural assembly while the insulation layer substantially uniformly retains its resistance to heat transfer.

Abstract: A structural support is provided for use in an internal wall partition assembly, and which is adapted to function in a variety of structural combinations, to thereby permit substantial versatility in the design of the partition assembly while minimizing the number of required structural components. The structural support comprises an elongate back wall, a pair of elongate parallel integral outer flanges, and a pair of elongate parallel integral inner flanges positioned between and parallel to the outer flanges. The inner flanges are spaced in the widthwise direction to accommodate a stud or insulating panel, and each inner flange is spaced from a corresponding outer flange a distance adapted for receiving the edge of a wallboard panel or the like therebetween.

Abstract: The present invention concerns a construction element, in particular containing plaster, in a plate which includes reinforcements distributed throughout the greater part of its thickness, such that along lines parallel to the sides of the plate, the reinforcements are concentrated in predetermined zone of the thickness and the plaster is removed plumb with these lines which may thus become folding lines to achieve a non-planar element. The invention also concerns a process and apparatus for manufacturing these construction elements. The invention applies, in particular, to the manufacture of U-shaped plasterboard panels for use in ceilings and in building structures.

Abstract: A renovation profile, for covering an exposed T-bar of a suspended ceiling. The profile has a substantially U-shaped cross-section, can be placed around the head of the T-bar, and has sets of spaced tabs for supporting ceiling panels.

Abstract: A plastic plate is provided for use with a fastener to secure insulation to a metal roof deck. The plate has a planar portion having a centrally disposed tapered hub portion. The central opening and preferably a clear through hole extends in the plate in the area of the hub. The bottom of the plate includes anti-rotational means for engagement with the insulation during driving of the fastener. The anti-rotational means may be associated with the bottom of the planar portion, the hub or both. The fastener may include two separate and spaced apart threaded portions so that as the fastener first engages the metal deck, the unthreaded portion is within the previously tapped hub portion.

Abstract: A standing seam roof, including a particular clip for attaching the roof panels to building purlins. The clips are disposed at spaced points along the purlins and attach the panels to the roof along first and second raised generally longitudinally extending edges thereof. The clip includes portions extending under both of the panels at the edges thereof to provide vertical support to the roof and hold the panels above the purlins to provide for more efficient use of insulation between the panels and supporting members. Each clip preferably includes a base member and a tab member, the tab member slideable in an elongated opening in the base member to provide for free expansion and contraction of the roof panels. The base member includes a central upstanding portion with panel supporting portions extending from the top thereof in a plane perpendicular to the central upstanding portion. The elongated opening for the tab member is formed in the central upstanding portion.

Abstract: A transverse support member for mounting between two adjacent joists in a building, to support a weight bearing partition wall which is disposed between the two floor joists of the building. The transverse support member is self-supporting, and it includes an elongated trough shaped body with floor engaging means, and attachment means on the ends thereof for attaching the transverse support member to the two adjacent joists.

Abstract: A packaging element is provided for mounting blister strips containing a course of medication for a patient. The element comprises a lamina foldable along a straight line dividing the lamina into a supporting member and a backing member so that when the lamina is folded the one faces of the members lie adjacent.

Abstract: A cylindrical package to be wrapped with stretch film sheet material is supported on a pair of parallel, horizontally spaced, horizontally extending support rollers, one of which is rotatably driven and the other of which is a slave roll which rotates idly. A stretch film supply means is mounted on a movable carriage with the axis of the film supply means parallel to the axis of rotation of the package. The carriage is caused to reciprocate along a path parallel to the axis of rotation of the package and the support rollers. The reciprocation occurs between a first position where the film material extends beyond one end of the package a distance at least as great as the radius of the package and a second position where the film extends beyond the other end of the package a similar distance. The film material is wrapped while tension is applied thereto.

Abstract: A thin-walled can body having a terminal curled rim at an open end thereof, has this open end closed and sealed by a diaphragm which is first formed into a dished shape by a forming tool which then cuts the dished diaphragm from a web and places it on the open end of the body. The upturned edge portion of the diaphragm is subsequently pressed into adhesion between a heat-sealable layer of the diaphragm and the curled rim, the latter being hot, by a presser tool comprising a mount carrying a spring-loaded pad. The pad is resiliently deformable and applies controlled pressure directly on the diaphragm, thus effecting complete conformity of the latter to any irregularities of the curled rim.

Abstract: Disclosed herein is a cantle saddle defined by a primary major saddle such as an English or Western saddle having a rear portion or cantle area which serves as a nesting site for the addition of a secondary saddle. The secondary saddle has a deformable front area capable of accommodating and nesting against the primary saddle and various techniques for affixing the cantle saddle to the primary saddle depending upon the geometry of the primary saddle are provided.

Abstract: A brake and clutch mechanism for a rotary type lawn mower or the like in which first friction element (25) carried by a rotor member (24) is rotatable with the working element or blade (14) and is resiliently urged by springs (26) into clutching engagement with a clutch member (27) rotated by the driving shaft (13) of the mower, and in which second friction elements (32) are resiliently urged radially outward by springs (36) into braking engagement with a braking surface (24A) of said rotor member (24).

Abstract: A pair of tensioning mechanisms (56, 57) for an idler drum (47) of a conveyor (28) transferring crop material from the header (21) to the processor (31) of a harvester are located entirely within the conveyor housing (22). Each tensioning mechanism (56, 57) includes an arm (66 or 67) secured by a combined pivot and lost motion connection (88, 91, 93, 96 or 89, 92, 94, 97) to the conveyor housing side walls (41, 42) and biased by a tension spring (104 or 106) disposed at its inboard side.

Abstract: A frame assembly mounted in the windrow discharge area on a swather or windrower on which a plurality of horizontal assemblies, are mounted thereto. On these assemblies are mounted fraying and cutting blades. These blades are operated at a required speed to fray and distort the tips of the stubble and/or cut and reduce the length of the straw of the standing stubble so as to ensure that the supportive strength of the straw is not exceeded by the weight of the swath or windrow placed upon it. This will eliminate any distortion or buckling of the remaining conditioned standing stubble straws. A windrow delivery plate is mounted on the swather frame assembly within the windrow discharge area. This plate assures delivery of the windrowed material onto the swath support fingers which effects a gradual release of the windrowed material onto the remaining standing frayed and conditioned stubble directly behind the frayer conditioners track of travel in the field.

Abstract: A cutting head assembly for a rotary motor is disclosed characterized by a flat disc member having a plurality of holes which are provided with a leading edge. A plurality of radially disposed holes are provided for insertion of a monofilament line which is the cutting element. A bar support is provided to prevent the accidental dislodging of the monofilament line.

Abstract: A composite yarn comprising a component of staple fibres and a component formed by a continuous strand is spun on a friction spinning apparatus. Staple fibres are fed to a twisting zone where the fibres are twisted to form a staple strand with one end open. The continuous strand is joined with the staple strand at a position within a portion of the staple strand which is in the process of being twisted, and such that fibres are joined with the staple strand both upstream and downstream of the joining position and some fibres join with the staple strand on both sides of the joining position. In this way a yarn is formed with some fibres forming an inner core twisted with the continuous strand, with some fibres forming on outer sheath around the core and continuous strand and some fibres having part of their length in the core and part in the sheath.

Abstract: A yarn stop-motion device for use with a yarn-processing apparatus comprising yarn break-detector means, yarn cutting means and yarn guide means positioned close to each other and combined in a single unit. This device is characterized in that the yarn guide means releases the yarn into the yarn cutting means upon detection of a yarn break by said yarn break-detector means.

Abstract: A yarn texturizing machine in which there are provided a plurality of treatment positions, each position presenting, in operational sequence, a yarn supply device, a first yarn feeder, a yarn heating device, a cooling zone for the heated yarn, a false twist spindle, a second yarn feeder and a windup device. This machine is presenting a central frame on either side of which are symetrically arranged the working positions. A guide tube for the yarn is arranged between the first delivery device and the heater entry, the connection between this tube with the heater being realized by means of a connecting element also joined to a blowing source permitting to eliminate the fumes inside the heater. The connecting element comprises means to the stop of the blowing during the yarn launching operation and to the automatic starting of the blowing action when running normally.

Abstract: False-twisting equipment including a first heater disposed on one side of an operation space, a second heater disposed on the other side of an operation space and a balloon control device and a false-twisting spindle disposed in the upper portion of the operation space wherein yarn is fed from the one side through the upper portion of the operation space and wound on the other side and the yarn passes through the upper portion of the operation space in a straight line so as to effectively propagete false-twists given to the yarn by the false-twisting spindle. The yarn, and the first heater are disposed as close to the floor as possible and the height of the top of the heater is lowered as much as possible, so that the yarn coming from the first heater to the false-twisting spindle is bent at a bending angle as large as possible.

Abstract: In a spinning or twisting machine, a anti-balloon ring stationarily fixed around the bobbin spindle is first sand-blasted so as to produce a predetermined degree of surface roughness, then provided with a nickel coating in order to reduce undesirable excrescences followed by a copper coating in order to reduce friction and loss of yarn resistance while permitting much higher spindle speeds in respect of an acceptable rate of wear.

Abstract: A method of operating a combined plant made up of a gas turbine plant and a steam turbine plant utilizing the exhaust heat of the gas turbine as its power source; in which, after the steam turbine has been stopped and before it is started, the gas turbine is kept running at a low constant load for a certain period of time with the exhaust gas from the gas turbine being led partly to a by-pass duct and partly to a heat recovery boiler, during which time necessary operations to start or stop the combined plant (such as breaking the vacuum in the condenser) are performed.

Abstract: A rotary machine, having a casing and a rotor rotatable eccentrically in the casing to define an eccentric annulus divided into compartments by vanes, to function either as a compressor or an expansion engine has the vanes pivoted at the rim of the rotor and driven by a mechanical coupling to their operative positions. The vanes are driven by cranks lying in planes outside but parallel to the planes in which the vanes operate. The vanes operate with a minimal clearance between vane tip and casing in order, ideally, to provide zero friction at the vane tip.A power system is disclosed in which air is compressed, heated in a flame tube, expanded under volume confined conditions in a rotary machine as described to an intermediate pressure, and expanded to ambient under volume confined conditions in another rotary machine as described. The machine may drive auxiliaries in a vehicle.

Abstract: The present invention relates to a gas turbine engine which is provided with a thrust reverser with unfoldable doors and which is of the double jet type, i.e. comprising a central generator emitting a jet of hot gas and surrounded by an annular by-pass conduit through which a jet of relatively cold gas passes, wherein said turbine engine comprises means for restricting the passage of the jet of relatively cold gas in said annular by-pass conduit when the doors of the thrust reverser are unfolded. The invention results in a simplification of the structure of the doors of the thrust reverser.

Abstract: A pollution control device for reducing pollution of the atmosphere by automobile exhaust gases comprises a chamber in the exhaust line and at least one pair of electrode units installed in the chamber wall. Each pair of electrode units comprises two casings installed a short distance apart in the chamber wall, an insulator extending through each casing and an electrode wire extending through each insulator into the chamber. Inner ends of the electrode wires are bent and one of the insulators together with the respective wire is rotatable so that by such rotation the distance between the inner ends of the wire can be varied. High voltage current is supplied to the electrode wires and the rotatable insulator is controlled to bring the inner ends of the electrode wires close together to initiate a discharge when the engine is started and then increasing the gap to about one inch to provide a continuous flame which burns off carbon CO and any other combustible ingredients in the exhaust gases.

Abstract: A hydraulic torque converter with a toroidal space bounded by a pump member, a turbine member and a free-wheeling stator has an inlet channel for fresh transmission fluid (oil) which opens into the pump torus at a location spaced from the pump member, preferably via the stator, whereby the relatively cool volume of newly admitted fluid mingles with the fluid already present instead of being immediately centrifugated toward the peripheries of the pump and turbine members from which it would quickly return to the sump. The inlet channel may include one or more radial passages in a spacer ring separating the stationary races of the journal bearings by which the pump member and the stator are supported on a trunnion rigid with the converter housing.

Abstract: A hydraulic rotation control circuit for a rotational actuator such as a hydraulic motor for rotating a rotary frame of a hydraulic crane, the circuit employing a combination of a number of check and variable reducing valves in a manner which allows smooth and delicate control of the rotation of the actuator to provide an operation performance equivalent to that of mechanical drive, including coasting operation of the motor.

Abstract: A motor vehicle provided with servo-assisted controls for the brakes and steering, has an hydraulic system of the type comprising a volumetric pump the input of which is connected to a reservoir, and first and second distributor devices the first of which is associated with the steering control device and the second of which is associated with the master cylinder for control of the brakes. The said second distributor device is formed in such a way as to function also as a pressure modulating valve.

Abstract: A Rankine cycle turbine drives an electric generator and a feed pump, all on a single shaft, and all enclosed within a hermetically sealed case. The shaft is vertically oriented with the turbine exhaust directed downward and the shaft is supported on hydrodynamic fluid film bearings using the process fluid as lubricant and coolant. The selection of process fluid, type of turbine, operating speed, system power rating, and cycle state points are uniquely coordinated to achieve high turbine efficiency at the temperature levels imposed by the recovery of waste heat from the more prevalent industrial processes.

Abstract: A gaseous fuel injector for a gas turbine engine, designed to burn gaseous fuels having a wide range of calorific values, includes a fuel nozzle attached to the engine casing and downstream fuel and air inlet means separate from the nozzle, attached to the head of the flame tube. The fuel and air inlet means comprise an outer annular passage containing a row of swirl vanes, through which compressed air from the engine compressor is arranged to flow, and an inner annular passage through which gaseous fuel and compressed air are arranged to flow, the inner annular passage decreasing in cross-sectional area in the direction of flow to prevent the flow of combustion products back into the injector. The nozzle and fuel and air inlet means, which is relatively large, are separate from each other so that the fuel nozzle can be removed and replaced through a relatively small opening in the engine casing.

Abstract: Coke hereinbefore known to form in the secondary passage of a dual orifice fuel nozzle for the combustor of a turbine type power plant is prevented from forming by imposing increased air pressure in the secondary passage during its inoperative mode and when the primary fuel passage is in the operative mode, without relying on purging or requiring an external air source.