Abstract: An optical connector system assembled from modular components. These components include connector modules that position ferrules for mating and providing fine alignment to fibers. The modules are assembled to support members to form connectors of various sizes. Mounting modules are attached to the support members. Various shaped mounting modules are provided, allowing connectors to be assembled for various configurations, such as a matrix configuration, a parallel board-to-board configuration or a panel mount configuration.

Abstract: A plug-type optical connector 10 is provided with a ferrule 22 and an aligning sleeve member 24. The aligning sleeve member 24 receives a portion of the ferrule 22 including an abutting end face 48 inside a bore 58 to prevent staining and damage and uses a movable shutter 54 to prevent light emitted through the ferrule 22 from leaking to the outside. The socket type optical connector 14 is provided with a ferrule 92 and a holding section 94. The optical connector 14 is not provided with an aligning sleeve member and further can hold a coated optical fiber by a holding section 94 behind the ferrule 92 by a radius of curvature of at least a prescribed minimum radius of curvature. Optical loss in the coated optical fiber can be reduced while effectively reducing the external dimensions in the direction of extension of the ferrule 92 at the time of use.

Abstract: A clamping assembly having a top and bottom and front and back orientation, at least one optical axis, and a pre-actuated state in which a fiber is not secured to the clamping assembly and a post-actuated state in which a fiber is secured to the clamping assembly, the clamping assembly comprising: (a) a housing; (b) a platform disposed in the housing and being fixed therein both radially and axially, the platform defining a fiber-receiving channel along the optical axis to receive at least one fiber, at least a portion of the fiber-receiving channel being accessible from the top; (c) a first cam member disposed in the housing above and adjacent to the fiber-receiving channel, the first cam member being radially actuateable within the housing, the first cam member having a first cam surface; (d) a second cam member disposed in the housing and axially slidable therein, the second cam member having a second cam surface adjacent the first cam surface and configured such that, upon forward motion of the second cam

Abstract: A transceiver module for optical communications is provided in which the leadframe assembly includes at least first and second die attach regions to which the laser diode driver IC and the laser diode IC are secured, respectively. A slot formed in the leadframe between the first and second die attach regions provides an air gap that at least partially thermally isolates the laser diode IC from the laser diode driver IC. This air gap results prevents heat generated by the laser diode driver IC from appreciably affecting the temperature of the laser diode IC, and thus from detrimentally affecting the performance of the laser diode IC. This slot also allows contact pads of the laser diode IC to be directly connected by leads to contact pads of the laser diode driver IC, which reduces the lengths of the leads and thus their inductances, which prevents EMI problems from occurring.

Abstract: In an exemplary embodiment of the present invention, an optical interface unit provides an interface between an optoelectronic device and industry standard MTP/MPO connectors. The optical interface unit axially aligns the core of a fiber with the optoelectronic device and interfaces that fiber to the standardized connector. In addition, the optical interface unit further provides a standardized interface for visible contact connection between the individual fiber stubs and the terminated fibers in the standardized connector. The optical interface unit therefore maximizes coupling from the optoelectronic device with the standardized connector.

Abstract: An optical module for housing an optical component to which optical fibers are to be connected, the optical module comprises a casing; at least two round fiber guides which are arranged within the casing, spaced at a distant from each other and around which the optical fibers can be wound; an accommodating space between the two round fiber guides for accommodating the optical component; and at least one opening provided in the casing and being arranged adjacent to one of the round fiber guides for external connections to be made.

Abstract: Provided are an enhanced structure of a coplanar waveguide that is a kind of transmission line used for optical communication for radio frequency (RF), and an optical communication module employing the same. While having a basic structure including a conductive strip and ground strips at both sides of the conductive strip on a dielectric substrate, the coplanar waveguide has the structure in which metal patterns of a portion of the conductive strip located around points where an RF propagation direction is changed and of a portion of an inside ground strip are removed to make electrical lengths of an outside ground strip and the inside ground strip similar each other. Using the coplanar waveguide, it is possible to fabricate an optical module that has an optimized RF characteristic and also can freely change an RF propagation direction of several tens GHz, without an additional process.

Abstract: A portable device includes a camera section, a camera image display, a first case having a first surface having the display therein and a second surface opposite the first surface, a second case that can be positioned over the second surface of the first case, a rotation axis section supporting the second case to the first case rotatably about an axis perpendicular to the first surface of the first case, and a camera/display operation section. The camera section has an optical axis, and the rotation axis section accommodates the camera section so that the optical axis is parallel to the rotation axis. The operation section is on the first surface of the first case opposite an image-capturing direction of the rotation axis of the rotation axis section.

Abstract: A method for enforcing a distribution policy associated with an electronic document comprising the steps of: sending the document to an output device; determining said distribution policy associated with said document; instructing a marking module to embed a marking indicating at least the existence of said distribution policy on an output form of said electronic document produced by said output device, said marking being readable to enforce said associated marking policy.

Abstract: In order to obtain joining force endurable for high-speed printing and realize an enhancement in magnetic characteristic, a plate-like arm for supporting a printing wire is laminated with a magnetic circuit forming member that is composed by laminating plural plates for forming a magnetic circuit, wherein a weld zone is formed on the laminated surface of the arm and plates with laser beam irradiation for fixing the arm and the magnetic circuit forming member with the weld zone.

Abstract: A method and apparatus for facilitating input of data to an electronic device using selectively illuminated chambered keys is disclosed. A determination is made as to which of a plurality of chambers is to be illuminated. An indicia assigned to a region on the surface of the key above a selected chamber is highlighted by illumination(s), that is (are) based at least upon the determination.

Abstract: A printer includes a print head for printing on a print medium and a platen which supports the print medium, and is located opposite to the print head. The print head is linearly moved along the print medium. The platen includes first and second end portions and an intermediate portion, and is formed of material having stiffness. The first and second end portions are located at respective ends of the platen in the moving direction of the print head, and the intermediate portion is located between the first and second end portions. The first and second end portions are supported by respective spring members, such that they can be elastically displaced in a direction toward or away from the print head. The intermediate portion is formed to be more easily warped than the first and second end portions.

Abstract: A highlight ink marker comprises an inner ink tube, an outer support tube, an automatic magnetic closure apparatus, a washer, a dumbbell-shaped spring coil and an olive-shaped spring ring. The automatic magnetic closure apparatus comprises of a magnet having a central canal to allow the passage of the small ink wick tube of the inner ink tube and a nonmetal block having a bottom hole and a concave hollow to contain a metal ball. The olive-shaped spring ring is installed in two slots of the top outer tube of the outer support tube to catch the top step of the inner ink tube to keep the marker open. The dumbbell-shaped spring coil surrounds the small ink wick tube and is placed in between the washer and the bottom step of the inner ink tube to push the inner ink tube outward.

Abstract: This is a retractable-nib writing tool having a retractable writing body in a shaft tube and having a sealing lid and a sealing tube which seal the writing nib of the writing body in association with the forward and backward movements of the writing body. In this retractable-nib writing tool, the sealing lid and a guide tube fixed to the writing body are linked by a plurality of thin line portions, the sealing lid and thin line portions are formed integrally, and the sealing lid is opened and closed relative to the sealing tube by the forward and backward movements of those thin line portions. This retractable-nib writing tool can securely seal, when the writing body is retracted, the writing nib at the tip by the sealing lid and the sealing tube and thereby prevent the writing body from drying.

Abstract: An oral care toothbrush includes a head mounted to one end of the handle containing a plurality of oral care elements. An oral care accessory is mounted to the opposite end of the handle. An oral care material dispenser is mounted in the head within the cleaning field defined by the oral care elements. The toothbrush is preferably made of small size and of lightweight so as to be readily portable for use away from the home.

Abstract: A binding tool includes an elongated substrate, a pair of rotatable shafts, and engageable binding rings on the shafts. The shafts are rotatably supported on the substrate. An operation plate on the substrate is slidable along the shafts. The shafts have cam protrusions. The operation plate has cam grooves acting on the cam protrusions to rotate the shafts. When the operation plate is in one end position, the cam protrusion rotates the shaft to separate the binding rings. In the other end position, the shaft is rotated to engage the binding rings. Each shaft has an engagement plate protruding toward the operation plate. The operation plate has at least one cutout and an engaging portion. The engagement plate engages with the engaging portion of the operation plate when the operation plate is in the one end position. The cutout is aligned with the engagement plate to release the engagement plate in other positions.

Abstract: A rocker pendulum for a motor vehicle, has an elongated, especially hollow basic body (1). The basic body (1, 11, 21, 31) has at least one section (1a, 11a, 21a, 31a), which forms or has a bearing shell of a ball and socket joint.

Abstract: A vehicle access control bollard for path entryways and restricted drives which allows access for approved vehicles through the use of a self-contained interior lowering mechanism. The three-piece bollard comprises a lower section which is concreted below grade, an intermediate section which houses the interior slip-fit hinge lowering assembly, and an upper section that stands vertically or can be lowered to an approximately four and one-half to five inch clearance height to allow approved vehicles to pass over. There are no exterior hinges, locks, or bolts, thereby giving the appearance of a single permanent non-movable bollard.

Abstract: An apparatus, system, and method are disclosed for supporting a gate entry or a connecting entry. The apparatus includes a support member, a controller, and a vehicle. The support member is configured to selectively engage a mine roof and a mine floor within a gate entry. The controller communicates with the support member to extend the support member to engage the mine roof and mine floor and retract the support member to disengage the mine roof and mine floor. The vehicle is connected to the support member and controller and moves the support member in response to a motive force. The support member, controller, and vehicle can operate and move independent of a mining face conveyor. The present invention is reusable, provides for mine roof and mine floor support as well as support of gate entry walls. The present invention has a minimal width profile to provide support while minimizing interference with the airflow within the gate entry.

Abstract: A cutting tool assembly (14) including a tool holder (20) having a removeable clamp (20a). A cutting insert support blade member (16) is removably held in the tool holder by the clamp (20a). The cutting insert support blade (16) includes at least one, preferably two, insert receiving pockets (30). The pockets (30) are defined by a body portion (16b) and a clamp portion (16a) joined together by an integrally formed resilient or deformable portion (16c) which permits slight resilient movement between the clamping and body portions to facilitate the installation of a cutting insert (18) in a pocket. When the insert support blade (16) is mounted in the tool holder (20), the clamp inserts clamping forces to the clamping portion (16a) of the insert support blade which serves to secure the insert support blade to the tool holder and exert clamping forces on an insert (18) held in the pocket.

Abstract: To provide a semiconductor device that enables high integration degree, and a manufacturing method therefor. A multi-chip module according to an embodiment of the present invention includes: a first semiconductor chip having a first bonding pad; a second semiconductor chip having a second bonding pad thinner than the first bonding pad; and a bonding wire connected with each of the first bonding pad and the second bonding pad, the first bonding pad being connected with a first bond side end portion of the bonding wire and the second bonding pad being connected with a second bond side end portion of the bonding wire.

Abstract: A drill adapter for a power screwdriver and including a locking device for releasably securing the drill adapter (28) on the support region (66) of the screwdriver (4) and having a push-on sleeve (30) supportable on the support region (66) and at least one engagement member (52) for releasably securing the push-on sleeve (30) on the support region, and an element for actuating the drive clutch (10) of the screwdriver (4) via the tool spindle (12) and projecting into a receiving space (38), which is partially limited by the push-on sleeve (30) and is open at one side, and having an axial stop (46) for engaging the tool spindle (12), with the at least one engagement member (52) projecting, in its locking position, beyond an inner surface (70) of the push-on sleeve (30) for establishing an axial formlocking connection between the push-on sleeve (30) and the support region (66) of the screwdriver (4) and which provides for actuation of the drive clutch (10) with actuating element.

Abstract: A wear amount of a working tool T during the machining of a workpiece is estimated during the machining, and a positional command generated in accordance with a predetermined machining program is sequentially corrected during the machining based on the estimated wear amount of the working tool T. The workpiece W is machined in accordance with the corrected positional command. Also, the wear amount of the working tool T upon the interruption of the machining operation is calculated, and the positional command generated in accordance with the predetermined machining program is corrected based on the calculated wear amount of the working tool so that a tool edge position of the working tool T upon the interruption of the machining operation coincides with the tool edge position of the working tool T upon the restart of the machining operation when the machining operation is restarted at a position where the machining operation has been interrupted.

Abstract: An apparatus having a mounting body, a support having a first end and a second end. The first end of the support being pivotally secured to the mounting body for pivotal movement about a substantially horizontal primary pivot axis. A rail grooming head mounted to the second end of the support.

Abstract: A numerically controlled machine tool performs machining by rotating a rotational tool attached to a tool holder mounted on a spindle, with keys fitted into key grooves in the tool holder. The numerically controlled machine tool includes predetermined-amount rotating unit for stopping the tool holder at a predetermined rotational position and then rotating the tool holder by a given amount, and a distance sensor which is installed apart from the tool holder and measures a distance to the outer surface of the tool holder. The predetermined-amount rotating unit stops the tool holder at a rotational position at which the key grooves do not face the distance sensor, then rotates the tool holder by the given amount. The distance sensor measures the distance to the tool holder while the tool holder is rotating. The measurement result is compared with a reference distance or distances to discriminate between normal and abnormal rotational run-out of the tool holder.

Abstract: A hollow portion of a spindle through which a draw bar and a disc spring assembly are inserted has a closed chamber structure and constitutes an oil pool chamber in which a lubricating oil is filled. The bearing portions that support the draw bar in the oil pool on both sides have the same inner diameter so that the volume of the oil pool chamber does not change when the draw bar is moved forward and backward. As a result, the lubricating oil is not pushed out of the oil pool chamber. Thus, a spindle unit can be provided in which a clamping device including the draw bar and the disc spring assembly for clamping a tool or a workpiece pallet at the forward end of the spindle can be reliably lubricated, so that the friction on and the breakage of the clamping device is reduced and that the service life of the unit is lengthened.

Abstract: A drive socket for a male threaded fastener includes three rounded lobes of equal radius which are located equidistant from the center of the fastener and 120° apart from each other. The drive socket also includes three flat surfaces, each flat surface being located opposite one of the lobes and equidistant from the center of the fastener. Another embodiment of a drive socket includes a first set of three lobes and a second set of three lobes, each lobe being of equal radius and equidistant from the center of the fastener. The lobes of the first set are 120° apart and the lobes of the second set are also 120° apart and 60° apart from the lobes of the first set. Each of the lobes of the first set includes a flat surface which is adjacent and tangential to the radius portion of the lobe.

Abstract: A drive socket for a male threaded fastener includes three rounded lobes of equal radius which are located equidistant from the center of the fastener and 120° apart from each other. The drive socket also includes three flat surfaces, each flat surface being located opposite one of the lobes and equidistant from the center of the fastener. Another embodiment of a drive socket includes a first set of three lobes and a second set of three lobes, each lobe being of equal radius and equidistant from the center of the fastener. The lobes of the first set are 120° apart and the lobes of the second set are also 120° apart and 60° apart from the lobes of the first set. Each of the lobes of the first set includes a flat surface which is adjacent and tangential to the radius portion of the lobe.

Abstract: An outer body of a nut defines an axial port and carries initial guide means. An inner body, movably accepted in the port in the axial direction, is divided into at least two jaws in the axial direction, which carry respectively an internal thread segment on their inner radial area. The jaws also include second guide means which interact with the first guide means in such a way that the jaws, when the outer body is moved relative to the inner body in a loosening direction, are moved radially outwards, and if the outer body is moved relative to the inner body in a tightening direction, are moved radially inwards. As the jaws can be moved when movement is in the radial direction, their internal thread segments can be brought smoothly into engagement with the outer thread of a threaded rod.

Abstract: An apparatus for handling pipes in a derrick and racking the pipes on a pipe racking assembly mounted on the derrick is provided to improve the stability of transferring pipes during a round trip operation. The apparatus includes a rotatable gate assembly mounted on the pipe racking assembly. The rotatable gate assembly includes a collar rotatably mounted to a first end of a shaft and an arm pivotably and rotatably mounted on a second end of the shaft. The collar defines a gate for securing an upper portion of the pipe stand. A first securing means mounted to a second end of the arm secures the mid-portion of the pipe stand and a second securing means mounted to the first securing means secures the lower portion of the pipe stand. After the arm secures the pipe stand from the derrick, a drive mechanism mounted to the shaft rotates the rotatable gate assembly such that the arm may rack the pipe on the pipe racking assembly.

Abstract: A load transfer system for flatbed trucks is described. A load transfer bay is defined between opposed rigid longitudinal load support beams. Each of the beams is connected to individually controllable adjustable support members in the form of pistons to adjust the elevation of the beams above a ground surface of the load transfer bay. A load support platform is displaceable from a retracted position outside the bay to a support position across and over the opposed load support beams for support contact therewith. The support platform has a plurality of spaced-apart support arms secured at an attachment end to a displaceable interconnecting member and projects therefrom in a substantially common plane to a free end thereof.

Abstract: An assembly for mounting various work tools, e.g., a backhoe, to a pair of parallel frame members (28) of a vehicle (20). A pair of parallel main beams (26) extend transversely across the frame members (28) and a telescoping stabilizing leg (24) extends downwardly from each end of each of the main beams (26). Four posts (48) extend from the main beams (26) for connecting the main beams (26) at spaced positions along the pair of parallel frame members (28). Each of the posts (48) is L-shaped in cross section with one flange thereof welded to the associated main beam (26) and the other flange attached to the vehicle (20) frame members (28). A pair of bearing blocks (50) are disposed on a first leg cross-beam (42) for pivotally supporting a and a pair of hydraulic cylinder-pistons (52) are attached to a main cross-beam (40) for pivoting the backhoe about the bearing blocks (50).

Abstract: A backhoe for quick connection to an end of an all-terrain vehicle (ATV) is described. A quick-connector mechanism is secured to a main mounting frame of the backhoe for securement to attaching components of an ATV. The backhoe has a pair of adjustable telescopic legs and a pivoting boom assembly, as is common with such apparatus. The pivoting boom assembly is connected to the main mounting frame of the backhoe by a piston operated pivoting mechanism for 180° lateral displacement of the boom assembly. The pivoting mechanism is comprised of a toothed sprocket secured to a vertical pivot connection at an attaching end of the boom assembly and fixedly secured to the main mounting frame. A sliding rack is provide with a series of teeth in toothed engagement with the toothed sprocket and secured for axial displacement by a fluid operated cylinder to cause the sprocket to turn and cause rotation of the pivot connection to thereby rotate the boom assembly within an arc of 180°.

Abstract: A parallel robot or parallel kinematics mechanism is provided for uses such as robotics or machining. The mechanism comprises a fixed base, a main arm, and a first and second support arm to position and orient an object in a cylindrical space with at least three degrees of freedom and retained inclination. The main arm includes an end component for supporting the object and linkage means to retain the inclination of the end component with respect to the base for all positions and orientations of the end component. The mechanism advantageously provides a large cylindrical workspace and a small footprint and is capable of moving an object at high accelerations and speeds. The mechanism can be equipped with an additional motor to orient an object, thereby providing the mobility of a SCARA robot. Alternatively, it can be equipped with passive transmission means that allow for an object to be displaced in parallel to itself.

Abstract: A vacuum processing method includes an atmospheric transfer step of transferring a wafer in atmospheric air to a vacuum transfer chamber using atmospheric transfer equipment disposed in atmospheric air, a vacuum transfer step of transferring the wafer received from the atmospheric transfer equipment to a position for a predetermined treatment within a vacuum processing chamber using vacuum transfer equipment disposed within the vacuum transfer chamber connecting the atmospheric transfer equipment and the vacuum processing chamber, a step of detecting the displacement of the wafer in a transverse direction with respect to a traveling direction near an ingress path of the wafer to the vacuum processing chamber by comparing a correct position of the wafer passing a line which is predetermined in advance with an actual position of said wafer being transferred by the vacuum transfer equipment, and a step of correcting the detected displacement of the wafer.

Abstract: A device and method for conversion of the energy of medium flows are provided. The proposed device and method ensure suppression of the vortex streams in the flow on the leg of its motion along the radially converging trajectories and concentration of the flow energy, which is expressed by the increase of its velocity and decrease of the summary area of the cross section of the converging trajectories. As the flow runs along the first system of helical trajectories the following takes place: the harmful secondary vortex jets continue attenuating, the degree of concentration of the flow energy increases and velocity components form in the flow, which correspond to natural vortex streams, for instance, tornadoes, whirlpools.

Abstract: A method for compressing the working fluid during a water/steam combination process in multi-stage turbocompressors comprising intercooling in the individual compressor stages, by the addition of a coolant to the working fluid. The aim of the invention is to provide a technical solution, which is suitable for the efficient intercooling of the working fluid during multi-stage compression and thus for the highest possible reduction of the required compressor power. To achieve this, dispersed water, which is obtained by the pressure atomization of water to form micro-droplets, is used as the coolant. The coolant is added directly to the working fluid in at least one compression stage in a quantity that maintains the thermodynamic equilibrium, and is converted during compression into the state of the working fluid, the evaporation of the coolant takes place at the saturation line.

Abstract: Disclosed herein is a nozzle box assembly including a torus, a steam path ring, and a bridge ring. The torus has a plurality of steam inlets and an annular steam outlet. The steam path ring has an annular steam inlet, the annular steam inlet has an inner diameter (ID) and an outer diameter (OD), the steam path ring is disposed downstream of the torus. The bridge ring has an annular steam inlet and an annular steam outlet, the annular steam outlet has an ID and an OD, the bridge ring is disposed between the torus and the steam path ring, the bridge ring annular steam outlet is adjacent to the steam path ring annular steam inlet, and the steam path ring annular steam inlet OD is greater than the bridge ring annular steam outlet OD and the steam path ring annular steam inlet ID is smaller than the bridge ring annular steam outlet ID.

Abstract: A method for assembling a vane sector for a gas turbine engine, the vane sector including an airfoil vane and a platform includes depositing a wear coating material onto a selected area of the platform, positioning the platform adjacent to the airfoil vane, and executing a brazing operation such that the airfoil vane is permanently coupled to the platform portion and such that the wear coating material is bonded across a predefined area of the platform.

Abstract: An axial-flow fan unit that produces less noise is provided. Blades 19 are exposed from a venturi 29. The shape of each of the blades 19 is so defined that a space formed between at least an inner surface 28a of each of web leg sections 28A to 28C and an edge 19a of each of the blades 19 located in the radially outward direction of the blades 19 expands toward the ends of the web leg sections 28A to 28C (or web bodies 30A to 30C). With this arrangement, noise produced when the blades 19 rotate along the web leg sections 28A to 28C is reduced.

Abstract: The invention relates to a turbine shaft for a steam turbine, oriented in an axial direction and comprising a first and a second flow region. According to the invention, a first material is provided in the first flow region of the turbine shaft, and a second flow region is provided in the second flow region thereof, the first material having heat-resistant properties and the second material having cold-resistant properties. The inventive turbine shaft is produced by means of a construction weld seam without any previous buffer layer welding on one of the two materials.

Abstract: A blower includes: an impeller on which there are arranged axial flow blades 40 mounted at circumferential intervals to an outer peripheral surface of a boss; a case surrounding the impeller; and a bell mouth cylindrically constricted to guide gas into the case, wherein an inner diameter of the bell mouth is smaller than an outer diameter of the impeller. Further, each blade has, in the radial direction, a sweepforward wing portion situated on the boss side and exhibiting a positive advance ratio value, and a sweepback wing portion situated on the outer peripheral side of the blade and exhibiting a negative advance ratio value, with the arc length of each blade increasing from the boss side toward the outer peripheral side. Therefore, it is possible to achieve an improvement in ventilation efficiently, through an increase in static pressure and to achieve a reduction in noise.

Abstract: A drying fan, including for water damage restoration, including for drying a room corner extending axially along an interface between a wall and a floor, has a shrouded housing having an axial flow path therethrough, an intake cowling receiving intake air, and an exhaust cowling discharging exhaust air and having a tapered ramp both a) expanding the airflow and b) directing the airflow where desired.

Abstract: Actual temperatures of intake air, hydraulic oil, and coolant, to be cooled by a cooling fan, are detected. Target fan revolution speeds are determined by PI control units based on differences between the actual temperatures and target temperatures. The cooling fan is controlled based on the target fan revolution speeds. To restrict accumulation of negative integral elements when performing integration by the PI control units an integration start control system adapted to control the timing for each PI control unit to initiate integration is provided. Target temperatures for initiating integration are respectively set, and control is performed so that integral elements of each PI control unit are kept invalid until the actual temperature of the corresponding cooling target fluid, i.e. the intake air, the hydraulic oil, or the coolant, reaches the corresponding target temperature. Delay in rise of fan revolution speed is prevented.

Abstract: A pitch bearing and related method for wind electric turbines has an annularly-shaped first bearing ring connected with an associated wind turbine blade, and includes a first raceway groove. An annularly-shaped second bearing ring is connected with the rotor portion of the wind turbine, and includes a second raceway groove aligned with the first raceway groove. Rolling elements are positioned in the first and second raceway grooves to rotatably interconnect the two bearing rings. A gear segment is formed on one of the bearing rings, and is configured to engage a pitch drive portion of the wind turbine to pivot the blade axially between different pitch angles. The gear segment has an arcuate measure of less than 200 degrees to facilitate economical manufacture.

Abstract: A support structure for a flowing-water drivable turbine system having a pair of generally horizontal decks of streamlined cross-section and at least one turbine assembly mounted thereon for operational co-operation with a flow of water in which the decks and turbine assembly is submerged.

Abstract: A gas turbine section of a gas turbine engine, including a first stage turbine disk, a forward outer seal carried on the turbine disk and a forward shaft cooperating with the first stage turbine disk for transmitting torque generated by the turbine section to a compressor section of the engine. The forward shaft intersects the first stage turbine disk at a non-perpendicular angle in the area of the disk hub for directing sufficient hot air against the disk hub to balance the thermal response rate of the disk hub to the thermal expansion rate of the forward outer seal.

Abstract: An engine cooling fan system including a hub disc about which first and/or second pluralities of elongated fan blades characterized by a first and second respective pitch angles may be fastened. Each respective fan blade further comprises a hub-engaging portion, a twisted transition portion and an air-engaging portion. Each fan blade is formed from a composite material having a thermoset resin matrix phase and an evenly dispersed continuous fiber reinforcement phase.

Abstract: A rotary wing blade of limited taper ratio, comprising in succession along a reference radius: an inner zone; a forward-swept zone; and a back-swept zone. In addition, the beginning of the forward-swept zone lies in the range 0.47 to 0.65 times the reference radius R of the rotary wing. Furthermore, the leading edge of the blade at the reference radius presents an angle ? lying in the range ?40° and ?65° relative to the general axis of the blade.

Abstract: In a compressor for gaseous media, in particular, refrigerants, comprising a housing, a drive shaft mounted in the housing, at least one compressor unit arranged in the housing and driven by the drive shaft, and an oil lubricating device for supplying bearing areas of the drive shaft with lubricating oil, in order to solve the problem that the compressor should be shut down when the oil supply of the oil lubricating device fails, it is proposed that the oil lubricating device comprise a lubricating oil reservoir lying above an oil sump in the housing and fillable from the oil sump by a lubricating oil conveying device, that the oil lubricating device comprise a lubricating oil duct system extending through the drive shaft for taking up lubricating oil from the lubricating oil reservoir via an inlet disposed on the drive shaft and conducting it to the bearing areas, and that a lubricating oil monitoring device be provided for detecting by means of a sensor associated with the lubricating oil reservoir the pres