Abstract: A method and system for improving the efficiency of energy capture from an energy capture device by analysis of the downstream fluid wake created by the energy capture device. In an illustrated embodiment, the system (10) comprises a sensing arrangement (32) configured to acquire air flow data from a downstream wake (34) produced by rotating blades (20) of a wind turbine (12), the sensing arrangement (32) comprising a Lidar unit (35) having an optical source (36) and a receiver (38). In use, the sensing arrangement (32) acquires data relating to the air flow velocity in the wake (34), which data is then processed to determine the relative angle of the wind turbine (12) and the average direction (D) of the incident resource (W).

Abstract: The invention presents a method for operating a horizontal axis wind turbine (1), the wind turbine comprising a tower (2) and a rotor (5) with at least one rotor blade (51), the rotor being connected to the tower, and being adapted to drive a generator (6) connected to a utility grid (8), wherein a pitch angle (A) of each rotor blade is adjustable, the method comprising detecting (905, 911), when the wind turbine is in an idling power producing situation in relation to the utility grid, a tower oscillation, and controlling (907, 913, 914, 915), when the wind turbine is in the idling power producing situation, the pitch angle of the at least one rotor blade so as to produce aerodynamic forces counteracting the detected tower oscillation.

Abstract: The present invention refers to a method for operating a wind turbine, the wind turbine particularly comprising a tower and a rotor with rotor blades. The pitch angles of the rotor blades are adjusted to generate a force on the rotor and the tower. The force is adjusted to counteract and damp an oscillation. The adjustment is enabled by an activation decision unit, if the activation decision unit decides that certain parameters characterising the oscillation or loads of the tower indicate a requirement and/or if the activation decision unit determines that the generated force is sufficient to counteract an oscillation of the tower.

Abstract: A system for transmitting signals, including a device for transmitting data between a movable and stationary portion of a windmill, to be installed on either portion, and including: connection elements for connecting at least one wireline to a plurality of groups to receive a plurality of respective data flows, each flow coming from a corresponding apparatus installed on the mobile portion or stationary portion; elements for processing the received streams, configured to assign a priority parameter value to each received stream, and in the event of concomitant reception of multiple streams, to compare the values of the priority parameter that are associated with the received streams and transmit by priority to a module for transceiving the radiofrequency signals, with a view to a radiofrequency transmission to the other of mobile or stationary portion, the stream associated with the value of the priority parameter corresponding to the highest degree of priority.

Abstract: An airflow generator power supply of an embodiment supplies alternating-current voltage to a plurality of airflow generators on a blade of a wind turbine generator. The power supply has a frequency converter, a plurality of transformers, and a switch. The frequency converter generates alternating-current voltage. Each transformer amplifies the alternating-current voltage and applies the amplified voltage to the corresponding airflow generator. The switch outputs the alternating-current voltage from the frequency converter to one selected from the transformers.

Abstract: A greased-based lubrication system for a main bearing arrangement of a wind turbine can be replaced with an oil-based lubrication system by: disconnecting an upwind bearing cover 12 and/or a downwind bearing cover 12 from the bearing housing 10; cleaning grease from the bearing arrangement; connecting an upwind oil drain cover 14 to the upwind side of the bearing housing 10; and connecting a downwind oil drain cover 14 to the downwind side of the bearing housing 10. At least one of the upwind oil drain cover 14 and the downwind oil drain cover 14 include one or more outlets for an oil-based lubricant. Further steps include: connecting the one or more outlets to an oil-based lubrication system; and introducing oil-based lubricant into the bearing arrangement.

Abstract: A power producing turbine comprising a flexible cable in a torque transmitting transmission, to accumulate force and to attenuate fluctuations in transmitted torque. The turbine includes a tower on which the turbine is mounted, and a generator receiving torque from the transmission. The flexible cable has a ratchet at each end to prevent unwinding. Thrust bearings maintain the flexible cable straight and unkinked. The generator may be located at ground level. The turbine may be a vertical or horizontal axis wind turbine. The flexible cable may comprise for example an assembly of flexible metallic strands.

Abstract: Embodiments disclosed herein describe systems and methods for efficiently and effectively raising a carriage to create potential energy, and converting the potential energy into electric energy. In embodiments, the carriage may be raised utilizing multiple fulcrums, wherein the fulcrums are positioned off center from a first linear axis of the carriage. In embodiments, the fulcrums may be positioned equidistance from a second linear axis of the carriage.

Abstract: A control system comprises sources of supply, in terms of power and in terms of control signals, capable of equally piloting each of the electric thrusters and further comprises a switching device capable of linking any one of the sources of supply to any one of the electric thrusters. The switching device comprises a rotary main roller divided into a number of angular segments comprising input and output conductive tracks and pre-wired electrical networks linking the input conductive tracks to the output conductive tracks of each angular segment, the pre-wired electrical networks associated with the different angular segments all being different and dedicated to different configurations for the piloting of the electric thrusters by the sources of supply.

Abstract: An improved motor driven duplex metering pump comprising two diaphragms in a single duplex liquid end pump housing assembly. The single duplex liquid end is rigidly attached to a main pump housing at a single mounting position and includes integrated check valves to allow for a single discharge process connection and a single suction process connection. The pump utilizes an improved cam mechanism that creates continuous positive uniform reciprocating motion. That continuous positive uniform reciprocating motion is imparted from its cam mechanism and its follower assembly to drive shafts that are connected to a cross arm and in collectively they impart the same motion to its two diaphragms that reciprocate 180° out of phase from each other. The result is substantially continuous liquid flow rate delivery by the invention.

Abstract: A water-hydraulic machine (1) is disclosed with at least two parts which are movable relative to one another, of which one has a surface composed of a plastic (5, 12, 13, 15, 19) with friction-reducing properties. With such a design the wear in case of a water-hydraulic machine should be kept low. To this end, the plastic (5, 12, 13, 15, 19) is formed as a polymer with ceramic filler.

Abstract: An example apparatus includes a housing including an inlet and an outlet. The example apparatus also includes a rotor defining a bore. The rotor is disposed in the housing. The example apparatus further includes a piston disposed in the bore. A motor is operatively coupled to the rotor to rotate the rotor from a first position to a second position. The bore is to be in fluid communication with the inlet and the outlet when the rotor is in the second position.

Abstract: A cryogenic fluid pump includes a plurality of pumping elements, each of the plurality of pumping elements having an actuator portion that is associated with and configured to selectively activate one end of a pushrod in response to a command by an electronic controller, an activation portion associated with an opposite end of the pushrod, and a pumping portion associated with the activation portion. For each of the plurality of pumping elements, the pumping portion is activated for pumping a fluid by the activation portion, which activation portion is activated by the actuator portion. The electronic controller is configured to selectively activate each of the plurality of pumping elements such that a flow of fluid from the cryogenic fluid pump results from continuous activations of the plurality of pumping elements at selected dwell times between activations of successive pumping elements.

Abstract: There is described a pumping device for pumping liquids, in particular water, which comprises a pump connectable to a pumping tube which can be immersed in a liquid tank to remove liquid therefrom, and a delivery tube connectable to one or more irrigation devices, at least one rechargeable battery for supplying power to the pump and at least one solar panel for charging said rechargeable battery. A manual controller is interposed between the rechargeable battery and the pump for manually adjusting the liquid volume to be delivered and the liquid dispensing frequency. The manual controller comprises two rotary knobs and for adjusting the liquid volume delivered by the pump and the actuation frequency of the pump, respectively.

Abstract: A hydraulic machine arrangement (1) is described having a housing (5), a working section and a hollow inside said housing (5), a supply port arrangement LPin, HPin, LPout connected to said working area, and a leakage path (7) between said working section and said hollow. It should be possible to detect wear with simple means. To this end, said housing (5) is provided with a leakage port (8) connected to said hollow.

Abstract: A fluid apparatus includes a bellows that is configured to be extendable and contractible in an axial direction in order to suck a fluid from a suction flow passage and eject the fluid to an ejection flow passage. The bellows has peak portions and valley portions, which are alternately formed in the axial direction, and annular side surface portions, which are located between the peak portions and the valley portions and connect the peak and valley portions to each other. A ratio B/A of the thickness B of the axial middle part of each of the peak portions in a direction which is perpendicular to the axial direction, to the thickness A of each of the side surface portions in the axial direction is set within a range of 1.3 to 1.8.

Abstract: A piezoelectric pump includes a piezoelectric element, a vibrating piece, a valve and a flow guiding member. The vibrating piece has a central zone attached to the piezoelectric element, a peripheral zone, a first recess, a stopper and a position limiting wall both protruding from the first recess, and a through groove disposed between the central zone and the peripheral zone and connected through the first recess. The valve is attached to the peripheral zone and has a non-straight through slit. The flow guiding member is attached to the valve and has a second recess and a channel both recessed in the flow guiding member, and a through hole. The channel is connected through the second recess and the through hole. A projection of the second recess projected on the plane which the valve exists covers the non-straight through slit. An operating method of a piezoelectric pump is further provided.

Abstract: A piezoelectric blower (100) includes a housing (17), a vibrating plate (41), and a piezoelectric element (42). The vibrating plate (41) forms a column-shaped blower chamber (31) together with the housing (17). The vibrating plate (41) and the housing (17) are formed so that the blower chamber (31) has a radius a. The piezoelectric element (42) causes the vibrating plate (41) to concentrically bend and vibrate at a resonance frequency f. A recessed portion (26) is formed in the housing (17) on the side facing the vibrating plate (41). The recessed portion (26) defines a cavity (25), which constitutes the blower chamber (31) and communicates with the vent hole (24). The radius a of the blower chamber (31) and the resonance frequency f of the vibrating plate (41) satisfy a relationship of 0.8×(k0c)/(2?)?af?1.2×(k0c)/(2?).

Abstract: A system includes a pump. The pump includes a piston configured to axially reciprocate within a body. The axial movement of the piston activates a first chamber valve and a second chamber valve. The system also includes a main valve configured to direct a flow to the pump to facilitate the axial movement which then transfers a fluid from a reservoir to a spray applicator. The system includes a runaway valve system fluidly coupled to the main valve and configured to detect a runaway state of the pump. The runaway valve system is configured to direct the main valve to stop operation of the pump in response to detection of the runaway state.

Abstract: A rail vehicle compressor system and method for controlling the same uses a compressor driven by an electrical machine via a drive shaft to produce compressed air for at least one compressed air tank, wherein the electrical machine can be activated at least indirectly via a control device for operating the electrical machine at at least one speed between a maximum speed and a minimum speed, wherein at least one pressure sensor determines the pressure for the control device and a final control element continuously influences the speed of the electrical machine, wherein activation of the final control element takes place via the control device in accordance with a sensor device, comprising at least one sensor element for sensing at least one external boundary condition of the rail vehicle.

Abstract: There is provided a state-monitoring system of a moving apparatus which is capable of deducing m abnormality and cause of breakdown of the moving apparatus by Equationematical analysis only by measuring vibration of a casing or object to be monitored and which requires no large-sealed apparatus. An equivalent model of the moving apparatus 1 is formed, which is adapted to replace the vibration of a monitored object of the moving apparatus 1 with the vibration of a viscoelastic member such as an elastic spring etc. and which is adapted to be capable of outputting virtual vibration data having synthesized vibration equivalent to the vibration of the viscoelastic member, and the equivalent model is Equationematically analyzed, thereby estimating the abnormality and cause of breakdown of the moving apparatus 1 only by measuring vibration of the casing 8 or a monitored object.

Abstract: A vane pump includes a first cam ring and a second cam ring, a first rotor positioned in the first cam ring and a second rotor positioned in the second cam ring, and a shaft. The first rotor is engaged with the shaft so that the first rotor rotates relative to the first cam ring about an axis extending through the shaft, and the second rotor selectively engages with the shaft so that the second rotor selectively rotates relative to the second cam ring about the axis. A piston positioned in the shaft translates within the shaft between a first positon and a second position. When in the first position, the shaft engages with the second rotor so that the second rotor rotates relative to the second cam ring about the axis, and when in the second position, the shaft disengages with the second rotor so that the second rotor does not rotate relative to the second cam ring.

Abstract: A pump device includes a pump, a flow control valve having a spool that returns a part of working fluid discharged from the pump to a suction side, and a differential pressure adjusting device that adjusts a differential pressure acting on both end portions of the spool to a target differential pressure, and the differential pressure adjusting device includes a pressure regulating chamber that communicates with a second fluid pressure chamber and a pilot chamber into which pressure in the discharge channel is guided: and a pressure in the pressure regulating chamber is adjusted such that a differential pressure between the pressure in the pressure regulating chamber and a pressure in the pilot chamber becomes the target differential pressure.

Abstract: A hydraulic machine is described having a first part (2) and a second part (3) moveable relative to said first part (3), one of said first part (2) and said second part (3) having a first land (9) resting against the other one of said second part (3) and said first part (2), having a predetermined first height (H1), and being arranged between a high pressure area (7) and a low pressure area (8). Such a machine should have a long working life. To this end a second land (10) having a predetermined second height (H2) smaller than said first height (H1) is located adjacent to said first land (9).

Abstract: A vane cell machine (1) is described comprising a stator (2) and a rotor (3), said rotor (3) having radially displaceable vanes (4) bearing on an inside (5) of the stator (2) and bordering, together with the rotor (3), the stator (2), and a side wall (7) at each axial end of the rotor (3), work chambers (6) the volume of which changes during a rotation of said rotor, at least one side wall (7) bearing an insert in form of a ring (9). Such a machine should be of simple construction. To this end, said ring (9) comprises a centric bore (10).

Abstract: Disclosed herein is an a compressor including a main body, a fixed scroll fixed on the inside of the main body, an orbiting scroll arranged to orbit relative to the fixed scroll, a compressing chamber formed by the fixed scroll and the orbiting scroll, an oil supply hole arranged to supply oil to a contact portion formed by the fixed scroll and the orbiting scroll, and an oil groove formed on an inner side of the contact portion to be closed to an outer side of the contact portion. The oil groove is extended into the form of an arc by being rotated by about 270 degrees or more along the circumference of the fixed scroll to cover the compressing chamber from the outside of the compressing chamber to supply oil all across the area of the contact portion easier which leads to more reliable operation of the compressor.

Abstract: An electric motor driven fluid pump for forced lubrication of a manual transmission of a motor vehicle, includes a housing having a fluid inlet and a fluid outlet, and an electronically commutated electric motor incorporated therein. The electric motor has a substantially cup-shaped magnetic rotor rotatable around a rotational axis, shaped for conveying fluid, an annular stator having a motor winding which at least partially encloses the rotor in a coaxial arrangement with respect to the rotational axis when viewed along the rotational axis, and a magnetic field sensor for detecting the position of the rotor. The housing includes a stator housing section which holds the stator, separates same from a liquid chamber in which the rotor is arranged, and extends into the rotor by a housing offset formed for receiving the magnetic field sensor.

Abstract: In accordance with embodiments of the present disclosure, an information handling system may include a processor and an air mover control system for controlling at least one air mover configured to drive airflow to one or more components of the information handling system. The air mover control system may be configured to read from an information handling resource of the information handling system, wherein the information handling resource comprises an active cooling system, a fault condition cooling requirement defining a minimum airflow required by the information handling resource from the at least one air mover in presence of a fault condition of the active cooling system. The air mover control system may also be configured to read from the information handling resource a variable indicating whether the fault condition of the active cooling system exists.

Abstract: A centrifugal compressor comprising an impeller having an input drive, the impeller having an impulse turbine positioned around the periphery of the impeller to be driven by the gas exiting the impeller, the output of the turbine being coupled to the drive of the impeller.

Abstract: A fan module and a hat with a fan module are disclosed. The fan module includes a case, a fan, and an air guide tube. The case includes a connecting portion, wherein the case is detachably engaged with a visor of a hat. The case has a receiving space and an air outlet, wherein the air outlet communicates with the receiving space. The fan is rotatably provided in the receiving space of the case. An airflow is generated when the fan rotates, wherein the airflow is exhausted out of the case through the air outlet. The air guide tube is connected to the case, and guides the airflow to a space between the head of a wearer and the main body. Whereby, the hat with the fan module could provide not only sunscreen protection, but also a cooling effect.

Abstract: A compressor and a chiller system including a compressor are provided. The compressor may include one or more impellers that draws a refrigerant in an axial direction and compresses the refrigerant in a radial direction, a rotating shaft that rotates the one or more impellers, and at least one displacement sensor that detects a displacement of the rotating shaft. The displacement sensor may include a flexible circuit board and coils provided on both sides of the flexible circuit board. The flexible circuit board may include a plurality of boards which may be connected to each other by one or more connectors.

Abstract: The segmented seal carrier of a guide vane ring of a turbomachine has a number of segments that form two half-rings of the seal carrier when assembled. They are clamped together by their opposite-lying, corresponding lateral contact regions.

Abstract: A small scale, high speed turbomachine is described, as well as a process for manufacturing the turbomachine. The turbomachine is manufactured by diffusion bonding stacked sheets of metal foil, each of which has been pre-formed to correspond to a cross section of the turbomachine structure. The turbomachines include rotating elements as well as static structures. Using this process, turbomachines may be manufactured with rotating elements that have outer diameters of less than four inches in size, and/or blading heights of less than 0.1 inches. The rotating elements of the turbomachines are capable of rotating at speeds in excess of 150 feet per second. In addition, cooling features may be added internally to blading to facilitate cooling in high temperature operations.

Abstract: A rotor for a turbocharger device has a shaft and, arranged and fixed axially one behind the other on the shaft, an impeller wheel, a sealing bushing element and an axial bearing element which rotates with the shaft. The sealing bushing element and the axial bearing element, by way of an internal thread provided on at least one of the elements, are screwed to a first external thread arranged on the shaft and are braced against a shaft shoulder. Stronger and more rigid fixing of the parts that are pushed onto the shaft, and thus also lower susceptibility to vibration-induced faults during operation, are achieved by way of this construction.

Abstract: A nacelle inlet is provided for an aircraft propulsion system. This nacelle inlet includes an outer barrel, a bulkhead and a plurality of supports. The outer barrel extends around an axis and along the axis to an aft end. The bulkhead is within and connected to the outer barrel. An aft portion of the outer barrel projects axially aftward from the bulkhead to the aft end. The supports are disposed around the axis and next to the bulkhead. The supports are configured to support the aft portion of the outer barrel.

Abstract: The present application relates to an axial turbomachine low-pressure compressor stator. The stator includes an outer annular casing made of organic matrix composite materials. The stator also has groups of vanes having an outer shroud, several rows of stator vanes spaced axially from one another, and segments of inner shrouds at the inner ends of the vanes. The rows of stator vanes are aligned along the circumference of the casing. Each outer shroud is pressed against the inside of the casing so it can be fastened by means of attachment pins. The outer shroud, and the rows of vanes of said group forming a one-piece assembly. The device of the present application reduces the number of vane attachment elements to a few attachment portions distributed on the shroud.

Abstract: A stator vane assembly is provided. The stator vane assembly may comprise a stator vane, an outer shroud, and a spring. A first end of the stator vane may be fixed to an inner diameter (ID) surface of a vane platform. A slot may be disposed in a surface of the outer shroud, wherein a portion of the stator vane is configured to be located within the slot. In various embodiments, the stator vane may be configured to translate in a radial direction in response to a force between the stator vane and a rotor. In various embodiments, the spring may be configured to be coupled to an outer diameter (OD) surface of the vane platform, wherein the spring is configured to bias the ID surface of the vane platform toward the outer shroud.

Abstract: An air blower, comprising: a casing having an intake port and a discharge port; an air-blowing fan disposed inside the casing to take in air through the intake port and discharge air from the discharge port; and a filter filtering the air taken in through the intake port, wherein an insect trapping part trapping an insect is disposed in a ventilation path between the intake port and the filter.

Abstract: Provided are a pump system with pumps aligned parallel to each other and a method for cleaning strainers easily and conveniently. Provided are the pump system and the method of controlling the same by which the frequent block of the strainers by particulates and/or debris and thereby the cleaning of the strainers can be done easily. Provided are the pump system and the method of controlling the same by which the time loss and expenses can be saved much in contrast to conventional pump systems occurring the efforts to loosen and tighten each of the bolts of the strainer during the exchange of the strainers, inconvenience and expenses loss of gasket exchange and its damages during the cover disassembled, and needs to remove insulating means and heat new insulating means, thereby to minimize the efforts in management of the pump system and save time and expenses thereof.

Abstract: Apparatus, e.g., including a pump or rotary device, having a discharge casing and a discharge casing insert. The discharge casing may be configured with a discharge flow pathway for providing a flow of effluent being pumped and discharged, the discharge flow pathway having a discharge flow pathway wall, the discharge casing also configured with a discharge casing insert borehole that passes from an outer surface of the discharge casing through the discharge flow pathway wall. The discharge casing insert may include a discharge casing Venturi plug portion to be received in the discharge casing insert borehole and arranged in the discharge flow pathway, the discharge casing Venturi plug portion configured with a restricted discharge flow pathway for providing a partial obstruction in the discharge flow pathway and the flow of the effluent being pumped and discharged.

Abstract: Exchanger devices include a plurality of fixed exchange ducts and a rotating valve assembly for directing flow to and from the plurality of exchange ducts. Methods of exchanging pressure between fluid streams may include directing fluids through an exchange device and pressurizing a fluid in the plurality of exchange ducts of the exchanger device.

Abstract: A series hydraulic hybrid system for a vehicle is described. The system has a hydraulic circuit, a hydraulic working assembly, and a hydraulic accumulator assembly. The hydraulic circuit has a first hydraulic displacement unit in fluid communication with a second hydraulic displacement unit. The first hydraulic displacement unit is drivingly engaged with a power source. The hydraulic working assembly has a hydraulic implement and a hydraulic working pump in fluid communication with the hydraulic implement, the hydraulic working pump drivingly engaged with the power source. The hydraulic accumulator assembly has a high pressure hydraulic accumulator and a low pressure hydraulic accumulator. The hydraulic accumulator assembly selectively fluidly connects to the hydraulic circuit and the hydraulic accumulator assembly selectively fluidly connects to the hydraulic working assembly.

Abstract: A valve structure includes a switching valve; and a compensator valve configured to maintain a flow dividing ratio determined by a switching amount of the switching valve to be constant irrespective of a load change of an actuator connected to the switching valve. An axis line of a main spool provided in the switching valve and an axis line of a compensator spool provided in the compensator valve are parallel to each other.

Abstract: A linear actuator for generating a linear actuating force, including a first drive unit having a first drive shaft designed as a hollow shaft, a first rotation-translation transmission driven by the first drive unit, having a first threaded spindle and a first threaded nut engaging with the threaded spindle, wherein the drive shaft of the first drive unit is designed as a first threaded spindle, a second drive unit arranged axially to the first drive unit and having a drive shaft, and a second rotation-translation transmission driven by the second drive unit, having a second threaded spindle and a threaded nut engaging with the second threaded spindle, wherein the drive shaft of the second drive unit is connected to the second threaded spindle; via the hollow shaft in a rotationally fixed manner.

Abstract: A flow-straightener apparatus and associated systems for converting a rotating airflow into a substantially longitudinally directed airflow is presented. A first annular frame is provided and a second annular frame arranged concentrically within the first annular frame. A plurality of flow-straightener vanes are also provided, each having a first end coupled to an interior surface of the first annular frame and a second end coupled to an exterior surface of the second annular frame. The plurality of flow-straightener vanes each also have a leading edge and a trailing edge and each vane has a curved segment.

Abstract: A beam clamp, including a clamp body having a rectangular shape symmetrically bent and butt-jointed by a plate material is described. On one side of the body housing a butt seam is a butt-joint face, and clamping jaws are protruded on the two sides of the body at the two sides of the butt-joint face. A clamping plate face is convexly disposed on one side of the body opposite the butt-joint face, and a screw hole corresponding to the clamping jaw is bored on the plate face. The screw hole is tapped and a bolt is disposed therein. The bolt and jaws form three-point clamping, providing high fastening performance. Corresponding threaded rod holes are bored on the plate face and butt-joint face and tapped. The resulting clamp has high processing precision, efficiency, and adaptability; the structure strength is high; load performance is good; and the size is small.

Abstract: A clip adapted to be connected to a connected member with a hole includes a base, an engaging section extending from the base, and an insertion section fixed to the engaging section at a side opposite to the base and adapted to be inserted into the hole of the connected member. The engaging section includes an engaging leg extending from the base, and having a first enlarged portion adapted to engage the hole of the connected member, and a beam formed near the insertion section to extend inwardly toward the center axis and connected to the insertion section, and a pair of engaging members extending from the base along the engaging leg and disposed perpendicular to the engaging leg so that the engaging leg is disposed between the pair of engaging members along a circumferential direction of the engaging section.

Abstract: An assembly of a first element with a second element includes an elongate thin lip belonging to the second element being inserted in an elongate narrow slot formed by three sides of an elongate flat plate fixed in parallel to a flat wall of the first element. At least one element forming a guide is secured to a long side of the elongate flat plate forming an edge of the slot. The element forming a guide includes a sliding surface extending in the continuation of the elongate flat plate and diverging from the flat wall away from the first element. The at least one element forming a guide cooperates with the lip so that the insertion of the lip into the slot begins with the sliding of the lip on the sliding surface and then continues as the lip advances, with progressive insertion of the lip into the slot.

Abstract: An electro-pneumatic controller for use with a regulator. The electro-pneumatic controller includes a base having a body, a top surface, and a bore formed within the body. A locking mechanism is disposed within the bore of the body of the base, the locking mechanism having a top surface flush with the top surface of the base. A cover is coupled to the base and includes an open end with a rim, the rim contacting the top surface of the base and a portion of the top surface of the locking mechanism. The locking mechanism is rotated via a tool in a counter-clockwise direction after the cover contacts a portion of the top surface of the locking mechanism to lock the cover to the base.

Abstract: The invention relates to an adjustable fastening device including at least one sleeve nut having an aperture with a first internal thread and a through-bore following the same along the longitudinal axis of the fastening device (1), and also including a drum screw with an external thread and a tensioning screw lead-through, in the case of which the drum screw engages, by way of the external thread, in the first internal thread of the sleeve nut. According to the invention, the sleeve nut has on the free peripheral region, which forms the opening of the aperture, a rivet-collar portion and a central sleeve portion, which projects into the aperture in the direction of the rivet-collar portion, wherein the tensioning-screw lead-through of the drum screw is designed to accommodate the central sleeve portion at least in part.