Abstract: Processes for producing valve metal are described, in which valve metal oxide is converted to valve metal using a vapor-phase transport agent to form a gaseous valve metal species in the presence of a solid getter material. Also described is the valve metal so produced, and anodes prepared from the valve metal, as well as electrolytic capacitors using the anodes.

Abstract: The present invention provides a method for producing nano-sized Fe powder having a polymer coated layer on a surface thereof, so as to prevent the nano-sized Fe powder from being oxidized under atmosphere. The method includes: gasifying an iron pentacarbonyl (Fe(CO)5) or an iron acetate ((CH3CO2)2Fe) precursor in a ceramic bubbler; forming nano-sized Fe particles due to the crystallization of Fe gas while mixing the gasified precursor with Ar gas in a reactor; and precipitating the nano-sized Fe particles in a polymer solution in a chamber, before the nano-sized Fe particles are oxidized. According to this technique, Fe powder on the order of tens of nms in size, and having a polymer coated layer, are obtained from the Fe precursor. A system for producing the nano-sized Fe powder is also disclosed.

Abstract: A new reagent for the application in the preparation of mineral raw materials, mainly sulphide and oxyde mono- and polymetallic ores of non-ferrous metals, which are used as a corrosion inhibitor of the equipment and grinding bodies and as a selective collector of the wanted metal, is described. The new reagent is a composition of water, mercaptobenzothiazole salts and its derivatives in the quantity of 0-50%, by weight, sodium metasilicates in the quantity of 0.1-10%, by weight, amines in the quantity of 1-5%, by weight, and dithiophosphates in the quantitiy of 0.5-20%, by weight. Also, it discloses the methods for the application of that new reagent for the preparations of the copper, zinc and lead concentrates from the sulphide and oxyde ores, for the purpose of further metallurgic processing. In those methods the new reagent is added fully, or in part, in the phase of wet grinding, and in part, as needed, in the flotation phase, in the quantity of 20-300 g of the reagent per ton of ore.

Abstract: An improved device for the removing of damaged fasteners comprising a socket head having a partly cylindrical external configuration the upper end adapted to receive the end of a turning tool. The major recess has an interior surface formed with a plurality of inverted L-shaped frustroconical projections and depending on the need the location of the apex of the teeth can be altered to create more torque. The angle of each tooth is currently 98 and 105 degrees with a recess at the bottom of each leg. Each tooth has two faces of uncommon lengths. The apex of each tooth is angularly oriented with respect to the axis of the cylinder. The axial interior of the major recess has a smaller diameter than the axial exterior of the major recess whereby when the socket head is rotated with a ratchet motion, the teeth will pull downwardly over the damaged fastener and bite into its exterior surface of the fastener to effect its removal.

Abstract: The present invention comprises a series of embodiments of a toilet ballcock valve wrench, configured for use on at least one of the retainer nuts and/or supply line nuts used conventionally in a toilet tank ballcock valve installation. The present wrench may be single or double ended, with double ended embodiments including heads adapted for use on the ballcock valve retainer nut and smaller supply line nut, or on different configurations of the retainer nut. The ends may have axial and/or planar offset, or may be straight, as desired. The present wrench in any of its embodiments may be formed as a flat metal stamping or otherwise formed (stamped, forged, etc.) of metal, or may be cast or otherwise formed of a plastic material for lighter duty work and/or limited use, if so desired. The plastic embodiments each include a series of ribs and central webs, for sufficient strength.

Abstract: A folding multipurpose hand tool including a pivoted latch that engages side walls of a handle and a base of a folding tool member to hold the folding tool member in a selection position. A separate safety interlock latch keeps a folding blade stowed in a handle when another tool is moved from a first position with respect to the handle. A tool bit holder securely holds and drives reduced thickness tool bits that can also be engaged in and driven by conventional sockets having a regular hexagonal shape.

Abstract: A folding multipurpose hand tool including a pivoted latch that engages side walls of a handle and a base of a folding tool member to hold the folding tool member in a selection position. A separate safety interlock latch keeps a folding blade stowed in a handle when another tool is moved from a first position with respect to the handle. A tool bit holder securely holds and drives reduced thickness tool bits that can also be engaged in and driven by conventional sockets having a regular hexagonal shape.

Abstract: A torque applying tool such as a nutrunner or torque wrench incorporates torque sensors responsive to strain in a shaft mounting an output square drive head the strain being measured as it exists immediately adjacent the drive head. The shaft is a hollow quill shaft an outer diameter of which is splined to receive a torque drive input at a location axially spaced from the drive head. A central shaft extends from the drive head centrally up the quill shaft and a flexible cantilever beam is mounted between a cranked end of the central shaft as it extends out of the quill shaft and the corresponding end of the quill shaft. One or more strain sensing transducers, preferably S.A.W. devices, are mounted on the cantilever beam to detect flexure of the beam, and the resulting output signal is passed through an inductive or capacitive coupling for transmission to a CPU and display.

Abstract: A piston mounted in a tool body is perpendicularly movable relative to the tool's longitudinal axis. A tool bit mounted on the piston protrudes perpendicularly away from the tool's body, relative to the longitudinal axis. A coupler rotatably and drivingly couples the tool to a line boring machine. The machine is operated to rotate and longitudinally move the tool along the longitudinal axis into a work piece bore, to position the rotating tool bit's cutting tip adjacent a selected internal circumferential portion of the work piece. Pressurized hydraulic fluid is then controllably applied to the piston, through the tool, to perpendicularly outwardly advance the piston relative to the longitudinal axis, forcing the rotating cutting tip into the work piece to cut a snap-ring groove. A spring mounted between the body and the piston biases the piston toward the longitudinal axis, retracting the tool bit when the fluid pressure is relieved.

Abstract: A roller shade cutting machine includes a base, a track assembly, a shade holder, a slat cutting device and a shade cutting device. The track assembly is mounted the base and includes a stationary track and an adjustable track with a ruler slidably mounted on the stationary track. The shade holder is mounted on the stationary track and has a rotating chuck to clamp a roller of the roller shade. The shade cutting device is mounted on the stationary track below the shade holder to cut the spinning roller. The slat cutting device is mounted on the stationary track and has a rolling cutter that is swiftly turned to cut a slat of the roller shade. Therefore, the cutting machine can be used to cut not only the roller but also the slat of the roller shade so that the machine is convenient to use.

Abstract: A punch and die tooling apparatus commonly used by metal fabricators for creating holes, passages and cavities in metal plate, the die having a unique internal bore which relieves the problem of slug pulling to ensure that a slug punched out of a metal sheet is not retained on the punch face to interfere with further operation of the apparatus. The die is provided with a substantially horizontal ridge and a corresponding horizontal land and relief space formed within the bore to facilitate tipping of the slug relative to the punch and thereby break any attachment between the slug and the punch face which causes slug pulling.

Abstract: A method of cutting an elongate timber web is disclosed which forms on each of two opposed ends thereof a tapered end shape including a series of at least four cuts at successive angles to approximate an arcuate convex end. The method includes the steps of performing first and second passes of the web through a saw having cutter groups at adjustably spaced apart locations, each cutter group having at least two cutters set to angles so that the cutters of each cutter group correspond to a subset of said series of cuts at a respective end of the web. The web is rotated between the passes, the rotation between passes and the cutter settings together result in a multi-faceted end cut.

Abstract: A blade for trimming flash from a plastic container. The blade includes a blade body having a first side end, a second side end, a front end and a rear end, the blade body including a blade edge at the front end of the blade body between the first and second side ends, a depression on the blade body formed between the first and second side ends and encompassing the blade edge, a first sidewall formed between the depression and the first side end of the blade body, and a second sidewall formed between the depression and the second side end of the blade body.

Abstract: A lumber trimmer is disclosed wherein at least one pair of parallel spaced-apart trim saws is mounted on a shaft. The pair of trim saws is laterally movable along the shaft parallel to the longitudinal axis of lumber in the lumber trimmer. Each saw of the pair of trim saws is operably coupled with an actuator such that each saw is selectively vertically movable to trim the lumber. The pair of trim saws may be mounted to a carriage. A second actuator is operably coupled with the pair of trim saws for selectively laterally translating the pair of trim saws along the shaft.

Abstract: An apparatus for sizing at a single workstation pleated shades and mini blinds in a particular dimension uses a sizing device that includes hydraulic actuated horizontal and vertical blades and a cutting rail assembly. The hydraulic actuated horizontal and vertical blades are used to respectively cut the components of a pleated shade or a mini blind, such as head rails, bottom rails and a pleated blind or aluminum slats. The horizontal and the vertical blades are sequentially operated to prevent the blades from colliding with each other. The cutting rail assembly has multiple stacked guiding blocks so that the pleated shade and the mini blind can be held in different tiers and be simultaneously cut at the single workstation.

Abstract: The invention relates to scrap shears (1) comprising several jaw arms (2a, 2b, 3), which can execute a pivoting motion in relation to one another in a closing or opening direction of the scrap shears. At least one jaw arm is equipped with a counter-bearing element (12) on the end section lying opposite the mounting (4), said element being displaced, (at least temporarily), in relation to the jaw arm carrying said element between a working position and a reduced friction position. The counter-bearing (12) is configured in such a way that the distance between its external surface (12b), which faces away from the carrying jaw arm and the mating surface (3b) of the neighbouring jaw arm (3), which faces towards said external surface, increases with the relative displacement of the counter-bearing element towards the reduced friction position.

Abstract: A machine for cutting parts of a window blind includes a machine base and two cutting units mounted respectively on the machine base. Each cutting unit includes two locating holes for insertion of the parts of the window blind, two cutters movable relative to the locating holes, a clutch for connecting and disconnecting the cutters, and a driving mechanism. The driving mechanism drives the cutters to move synchronously to cut off the parts of the window blind that extend out of the locating holes when the cutters are connected by the clutch. The driving mechanism drives only one of the cutters to move to cut off the parts of the window blind that extend out of one of the locating holes when the cutters are disconnected.

Abstract: A knife for a cutting wheel provided to slice food products including a knife holder having a recessed portion located along a leading side thereof, a clamp secured to the knife holder, and a cutting blade mounted between the clamp and knife holder along the leading side of the knife holder. A replaceable insert member with a wear surface is positioned within the recess of the knife holder, and this insert member is contiguous with the cutting blade and protrudes from the knife holder to provide a substitute leading edge therefore in close apposition to the cutting blade.

Abstract: A family of stringed musical instruments has improved tonal quality. The top plate is cylindrically curved parallel to the strings, and the back plate is cylindrically curved along an axis perpendicular to the strings. The transverse braces supporting the top plate are scalloped, leaving substantial air gaps along the glue line once the brace is attached. The back plate is supported by a substantial longitudinal brace, or spine, which runs down its center parallel to the strings. The spine contains a substantial portion of the mass of the back plate. The spine and braces are produced as a laminate, with spruce surrounding a core of ebony. These musical instruments have improved harmonic generation over common instruments, and therefore have a more complex and pleasing tone than common instruments. In addition, there is little spatial variation for the harmonics produced by these musical instruments.

Abstract: A bridge system (10) for a stringed instrument having means to adjust independent bridge elements longitudinally, vertically, and laterally. The bridge (10) elements include a unit (20), a control anchor (300) having a ring (340) and bolted to the instrument body through an elongate opening in the ring (340). A longitudinal adjustment screw (390) connects the control anchor (300) to the saddle/base unit (20), and the structural base (100) includes a height adjustment screw (180) that engages the saddle (200). Multidimensional adjustments can be made with a single tool.

Abstract: A tailpiece of, for instance, an electric guitar including a bridge main body attached to the guitar main body by two protruding stud screws so as to be moved and adjusted in the direction of the stretched strings. At both ends of the bridge main body, first and second string supports for supporting first and sixth strings are formed integrally to protrude inwardly. Between the first and second string supports, a first bridge saddle member for supporting the second and third strings, and a second bridge saddle member for supporting the fourth and fifth strings, are provided. These saddles are connected to the bridge main body by saddle adjustment screws so as to be moved and adjusted in the forward and backward direction. The first and second bridge saddle members are moved along the surfaces parallel to the direction of the stretched strings.

Abstract: An electronic percussion instrument includes input means and musical tone generation control means. The input means allows for a vibration level of a vibration of an operator and position information that conforms to a position of the operator to be input. The musical tone generation control means in one in which whether or not the generation of a musical tone based on the vibration level and the position information is instructed is controlled in those cases where the vibration level has been input by the input means.

Abstract: A tremolo assembly is implemented for modulating the string tension on a guitar by mounting a bridge carrier on a sliding mount with the fore and aft displacement thereof effected by a transverse cam implemented fulcrum piece opposing the string tension. The sliding mount limits the bridge translation to the string plane, thus resolving all bending and lateral string forced. A forwardly and rearwardly aligned set of manual levers is then useful in modulating downward and upward the tension of the strings in unison against a set of bias springs.

Abstract: A percussion musical instrument comprising a set of clave blocks each comprising a body having an open cavity therewithin. The bodies of the clave blocks have substantially equal exterior dimensions and assorted volumes of the open cavities therewithin provided to generate musical tones of assorted pitches, such as low pitch, medium pitch and high pitch. A volume of the open cavity of the low pitch clave block of the set is larger than a volume of the open cavity of the medium pitch clave block, while the volume of the open cavity of the medium pitch clave block is larger than a volume of the open cavity of the high pitch clave block. Each of the clave blocks of the set further includes a mounting rings.

Abstract: A method of making a quartz-shell drum includes the steps of heating a quartz tube to a temperature at least sufficient to enable quartz to flow. A diameter of a portion of the heated quartz tube is enlarged to a predetermined size. The enlarged tube is cut perpendicular to a longitudinal axis to create a shell having a desired height. A top edge and a bottom edge of the shell are ground to form smooth radii. The top and the bottom edges are fused to create top and bottom rounded edges. In an alternate embodiment, the top edge is instead formed to be inwardly angled. Finally, a top and a bottom head are affixed to the top and the bottom edges, respectively, to form a drum.

Abstract: A snare assembly for application in a snare drum including a cylindrical shell, a lower drum head and an upper drum head oppositely secured to the drum shell, and a snare strainer mounted to the drum shell for applying tension to the snare assembly. The snare assembly mounted adjacent the lower drum head of the drum and comprises a pair of end members and a plurality of generally parallel snare strands extending between and each permanently attached at opposite ends thereof to respective ones of the end members. The snare strands of the snare assembly have continuously graduated effective lengths for providing continuously graduated tension of the snare strands in a transverse direction of the snare assembly when the snare strands are elongated in an axial direction thereof by the snare strainer. Consequently, the snare assembly generates a musical tone continuously graduated in transverse direction of the snare assembly.

Abstract: A base drum rim clamp device comprising in combination, a base, a wedging device to exert clamping force that device carried by the base, means to displace said device to move a surface or surfaces of the device relatively toward one side of a base drum rim, and a clamp part to which clamping force is transmitted at the opposite side of the drum rim.

Abstract: Remote wire hi-hat apparatus is actuated by the pedal of the first hi-hat apparatus via flexible cable. A lever connecting the foot pedal of the master hi-hat and the flexible cable of the slave hi-hat is fixed to the pedal by a screw used to attach a chain or belt connected to the elevator rod of the master hi-hat. The flexible cable is connected to the lever by means of ring-shaped attachment unit. Housing of the sheath of the flexible cable is at the lower part of the hollow post of the master hi-hat stand. At the other end of the flexible cable there is a hollow post of the slave hi-hat. In the hollow post of the slave hi-hat there is a spring used to return the cable to the starting position. To achieve that the foot pedal is to be worked with the same force there are springs with hollow screws and nuts placed between top and bottom cymbals of both master and slave hi-hats. Instead of the said lever there can be a set of two pulleys placed between foot pedal and elevator rod of the master hi-hat.

Abstract: A spike tip structure for a support leg for a stand, which may be used for supporting a musical instrument. The tip structure comprises a main body; an elongated spike member disposed in a first aperture of said main body; an end cap fitted around a bottom portion of said main body, where the end cap has an opening through which said spike member is adapted to pass; and an internal locking assembly for locking said spike member in position with respect to said main body, wherein said spike member is resiliently biased to translate in said aperture of said main body. The tip structure further comprises a button member slidingly disposed in a second aperture of said main body, where the button member selectively disengages the internal locking assembly.

Abstract: A high hat stand includes a cymbal receiving plate journaled to a main mounting body. An adjustable bolt, for adjusting the pivot orientation around the journal of the receiving plate with respect to the mounting body, passes through the receiving plate so that as a nut is tightened on the bolt the receiving plate is tilted with respect to the mounting body. A biasing spring may also be interposed between the receiving plate and the mounting body. A cushion may be disposed between the plate and the cymbal.

Abstract: An electronic music apparatus which can simplify the operating procedure for reproduction of sample contents. When a user designates a sample content as an object for download distribution using a setting operator, the sample content is distributed by download distribution and received by the electronic music apparatus. The received sample content is stored in a storage medium, and automatically read out from the storage medium and stored in a temporary memory. The sample content stored in the temporary memory is automatically reproduced.

Abstract: A method and device for music format switching. A tone editor is first selected to compose ring tones in accordance with a first music format. It is determined whether a switch operation has been executed. If the switch operation has been executed, the ring tones are composed in accordance with a second music format.

Abstract: A play data editing device edits play data according to a characteristic of a speaker. The play data editing device includes a dividing unit (301) for dividing first play data into second play data per channel; a classifying unit (302) for classifying the second play data into a rhythm part, a melody part, and a base part; a chord processing unit (303) for converting a number of chords of the second play data corresponding to the melody part according to the characteristic of the speaker; a velocity processing unit (304) for converting a velocity of the second play data corresponding to the rhythm part according to the characteristic of the speaker; and a sound range processing unit (305) for shifting a sound range of the second play data corresponding to the base part according to the characteristic of the speaker.

Abstract: A set of formation data codes, which includes action event codes and duration codes, is loaded in an automatic player piano, and a controller interprets the action event codes for driving the solenoid-operated key actuators; since the solenoid-operated key actuators slowly push the associated keys, the hammers do not reach the strings, and any piano tone is not produced; the plungers make the keys sunk to different depth so that the keys are laid on a artistic pattern; the controller sequentially changes the artistic pattern, and offers an artistic visual expression to the audience.

Abstract: In order to make a tutor give a remote music lesson to a trainee, the audio-visual station transmits MIDI music data codes/time stamp data codes and click time data codes through a packet switching network and an audio-visual signal, which expresses real images of tutor's hands on the keyboard, and click signal through a teleconference system to another audio-visual station; the controller for the trainee makes the internal clock synchronous with the internal clock for the tutor through the pairing work between the click time data codes and the click signals so that the images of note bars and real images are synchronously produced on a display unit in front of the trainee's keyboard; moreover, while the tutor's exhibition is being carried out, any oral direction does not reach the trainee so that the trainee concentrate himself to the exhibition.

Abstract: An electronic musical apparatus in which operators for changing pages on a musical instrument function-related screen and history pages on a Web screen are shared, so that those pages can be changed using similar operating systems to improve the userfriendliness. A display controller 38 is operable when the Web screen is displayed by the display 19, to change the history pages of the Web screen forward in terms of time in response to operation of a Next switch 47, and the display controller 38 is operable when the Web screen is displayed by the display 19, to change the history pages of the Web screen backward in terms of time in response to operation of a Back switch 48.

Abstract: A stringed musical instrument having a pickup system including at least one dual coil pickup, each coil having first and second end terminals and at least one tap to a portion of the coil between the first and second end terminals. A first or mode switch selectively connects first and second output terminals of a pickup circuit to (a) the first end terminals of both coils, (b) the first and a second end terminals of one of the coils, and (c) the at least one tap of both coils. Selection (c) allows for a selection of less than two full coils. The musical instrument includes additional pickups and a second or pickup selector switch to selectively connect the pickups and the first switch to the first output terminal of the pickup circuit.

Abstract: A bobbin for a pickup including a base and a top or cover spaced and connected by a post structure integral thereto. The post structure has one or more cavities for receiving one or more pole pieces. The post structure includes a plurality of lateral windows so that the one or more pole pieces in the one or more cavities would be immediately adjacent windings of one or more coils to be wound on the bobbin.

Abstract: An electronic percussion instrument includes input means, comparison means, and musical tone generation control means. The input means allows for the input of a vibration of a head section and a vibration of a rim section that have been detected by a striking detection section. The comparison means allows for a comparison of a size of the vibration of the head section and a size of the vibration of the rim section. The musical tone generation control means allows for controlling a generation of a musical tone based on a result of a comparison by the comparison means such that the musical tone corresponds either to the vibration of the head section or to the vibration of the rim section. In those cases where the musical tone corresponds to the vibration of the rim section, the generation of the musical tone can be further controlled.

Abstract: An electronic keyboard instrument includes a keyboard attachment frame section having a keyboard section; a rear frame section joined to a rear portion of the lower surface of the keyboard attachment frame section and having pedals provided at its bottom portion; and an electronic circuit that generates heat when activated and includes a power transformer and an amplifier. The electronic circuit is vertically provided on the inner surface of a rear body section of the rear frame section. Hole portions and ventilation holes are provided at a bottom portion of the rear body section. Ventilation holes are provided at the keyboard attachment frame section.

Abstract: An instrument main body has a keyboard including a plurality of keys and sound generators (for example, speakers) at a rear of the keyboard. At the rear of the keyboard, an upper surface cover portion composed of an upper panel, a operating panel, and so on is provided to cover an upper portion of the instrument main body. In the operating panel, tone escape portions are provided at right and left regions separated in a direction in which the keys of the instrument main body are arranged. Further, a rear panel is erected on the upper panel at a rear of the tone escape portions and having a width equal to or larger than the entire width of the keyboard in the direction in which the keys are arranged and a height larger than the length of the key in its longitudinal direction.

Abstract: An improved method of blast suppression involves forming a foam barrier in proximity to a bomb or other suspicious device. The foam is maintained in position by a containment structure which is inflated and kept in an inflated state by the foam used to form such barrier. Various containment structures and methods are disclosed for suppression of compression waves and combustion effects caused by an explosive event.

Abstract: A striped braided element comprising: a first set of members having a common direction of winding, the center axis of said first set of members being axially displaced relative to each other in relation to a common braiding axis; and a second set of members having an opposite direction of winding, the center axis of the second set of members being axially displaced relative to each other in relation to the common braiding axis, the braided element exhibiting a uniform uninterrupted braid pattern and an average uniform distance between the center axis of members having a common direction of winding at a particular circumferential section along the common braiding axis; characterized by having at least one stripe comprising two adjacent members of the same set exhibiting a significantly reduced distance between the center axis of the adjacent members in the particular circumferential section.

Abstract: A CM system for the defense of aircraft against missile attack leverages nanocrystal technology to provide safe and reliable protection. The CM system generally includes one or more ground-based laser emitter subsystems, one or more ground-based Doppler-sensitive radar subsystems, an aircraft-based nanocrystal dispenser subsystem, and an engagement control subsystem that governs the operation of the CM system. In response to the detection of a missile within an attack envelope, the engagement control subsystem instructs the dispenser subsystem to release nanocrystals into an area proximate the aircraft. In addition, the engagement control subsystem instructs one or more of the laser emitter subsystems to direct an excitation signal at the dispensed nanocrystal “cloud” to thereby cause the nanocrystals to emit infrared radiation that approximates that of jet engine exhaust.

Abstract: A thrust device, in particular for a roller cam mechanism in a steering system, includes a first mechanism member which is held on a frame in engagement with a second mechanism member. The thrust device comprises a pressure piece which is mounted on the frame so as to be displaceable along an axis and is acted on by a spring element for pressing the first and second mechanism members against one another. In order to construct the thrust device for compensating for wear and thermal expansion of the engagement of the mechanism members and to configure it to be inexpensive and quiet during operation, there is provision for the spring element to be formed from rolling bodies which are spring loaded approximately transversely with respect to the axis of the pressure piece, the rolling bodies being supported on oblique surfaces between the pressure piece and a frame part which is configured as a setting screw or cover. The pressure piece can additionally be spring loaded axially by a compression spring.

Abstract: In accordance with the present invention a pneumatic or hydraulic rotating cylinder capable of very high speeds is embodied. It is constructed of light weight materials, minimizing the mass but is given the ability to run at high speed in spite of vibrating environments, supply line condensation, contaminants and various attitudinal mounting by the anti-seizure insert bearing inserted into the distributor and sleeving the rotating shaft.

Abstract: The invention relates to a piston-pin bearing for an internal combustion engine wherein a cylindrical piston pin (8) is mounted. The inventive piston-pin bearing is provided with an improved form of hub bore in comparison with prior art, significantly reducing mechanical stress in said piston and therefore resulting in a longer service life for said piston. Said form also avoids the formation of noise in the piston-pin bearing. According to the invention, this is achieved by providing the lateral surface (5) of the hub bore (2) with a highly oval shape along the entire axis of the hub in the equatorial-zenith-equatorial area of said hub, corresponding to the parameter representation of an oval x=b/2×cos }; y=a/2×sin}for 0o==180o, and by providing it with a circular cylindrical shape in the equatorial-nadir-equatorial region of the hub, whereby a: large oval diameter; b=D: small oval diameter; D: diameter of the cylindrical hub; : the angle forming any particular unlimited line counter to the z axis.

Abstract: A hydraulic torque motor for civil engineering machines comprises a housing and a shaft rotatably mounted in said housing, wherein between housing and shaft at each of the two ends of said shaft one respective annular seal of an elastic material is received in a radial opening in said housing and/or in said shaft and compressed in the assembled condition, so that said shaft is mounted in said housing in a fluid-tight manner. One respective mechanical face seal is arranged axially on the outside next to each of said two annular seals and comprises two metallic slide rings and two elastically deformable O-ring seals, which are compressed in the assembled condition so as to axially and/or radially urge said slide rings towards each other and towards said housing or said shaft, with said mechanical face seal thus sealing said associated annular seal against an external environment.

Abstract: A method of operating an emission abatement assembly includes detecting presence of a predetermined environmental condition with a control unit of the assembly and ceasing operation of the assembly in response thereto. An emission abatement assembly is also disclosed.

Abstract: A regenerable filter system includes a flow path along which a stream of fluid flows between an inlet and an outlet. A first filtering unit is located in the flow path. The first filter unit includes first and second regenerable filter beds, wherein each bed has a first adsorbent for removing a first contaminant from the fluid stream. A first valve is located between the inlet and the first and second filter beds for selectively directing the fluid stream through one of the first and the second filter beds. The other of the first and second filter beds is removed from the flow path. A second filtering unit is located in the flow path between the first filtering unit and the outlet. The second filtering unit includes third and fourth regenerable filter beds for removing a second contaminant from the stream of fluid.