Abstract: An improved underground hazardous liquid storage system and aboveground dispensing system, said dispensing system placed immediately above said storage tanks. All storage, delivery and pollution monitoring functions of the stored liquid are self-contained in a fully transportable unit. Liquid storage has either double or triple wall protection. All electrical, controlling and monitoring functions are incorporated into the two units as shipped requiring only hook-up when the two units are installed at the operational site. The modular nature of this system provides simple installation, conservation of land and labor, while fully protecting the waters and soil of the earth and being readily removable to another location if desired or coupled with another system to provide greater capability.

Abstract: An actuator for an oscillator which is capable of minimizing the fluctuation of the detection error of the oscillation condition of an electrostatic driven oscillator and shortening rise time of the oscillation amplitude of the electrostatic driven oscillator during starting. An actuator oscillates a drive frame and a detecting frame in the X-direction by outputting the drive signal to an electrode and detects the displacement of the drive frame in the X-direction as the displacement signal. The actuator generates a direct-current voltage component of the drive signal controlled to be increased or decreased based on the detected displacement signal and an alternating voltage component of the drive signal having a constant amplitude to maintain the constancy of the oscillation amplitude of the drive frame based on the detected displacement signal. During starting, the actuator generates an alternating voltage component of the drive signal having a larger amplitude compared to at normal operation condition.

Abstract: An actuator for an oscillator which can control the fluctuation of the oscillation of an electrostatic driven oscillator such as the detection error by controlling the fluctuation of the amount of the noise mixed into a displacement detecting signal. An actuator oscillates a drive frame and a detecting frame in the X-direction by outputting the drive signal to a drive electrode to detect the displacement of the drive frame in the X-direction as a displacement detecting signal. The actuator generates a direct-current voltage component of the drive signal increased or decreased based on the detected displacement signal and the alternating voltage component of the drive signal having a constant amplitude to maintain the oscillation amplitude of the drive frame constant.

Abstract: The input device and detection device each comprise separate electrodes comprised of an electrode for detecting input in a vertical direction and a plurality of electrodes for detecting input in a horizontal direction and arranged separately on the surface, an elastic body which faces the above separate electrodes with a predetermined space therebetween, at least a portion opposite to the separate electrodes having conductivity, a thin portion being provided opposite to the electrode for detecting input in a vertical direction, a storage depressed portion being formed on the thin portion, and the space between the elastic body and the separate electrodes changing by input, a slider connected to the elastic body and movable only in a horizontal direction, a hard pressing body stored in the storage depressed portion of the elastic body, and a key top whose portion opposite to the pressing body is movable in a vertical direction, wherein when the slider is moved in a horizontal direction, the elastic body deform

Abstract: A multiaxial robot with a frame and a structure with at least one robot arm having a robot hand is proposed, more particularly for use in the food sector. The robot has an envelope surrounding it in a substantially gas and liquid-tight manner and which has a flexible construction at least on a section facing the robot hand, whilst at least partly exposing a tool and sealingly engages on the transition area between the robot hand and the tool. According to a preferred construction, the envelope is constructed in the manner of a cabin receiving at least the robot frame and provided with at least one passage for the robot arm, the passage being connected about its circumference with a flexible membrane tightly engaging on the robot hand.

Abstract: A rolling-body screw drive includes a threaded spindle and a threaded nut (10) enclosing the threaded spindle, a helically running threaded channel being provided between an outer circumferential surface of the threaded spindle and an inner circumferential surface (24) of the threaded nut (10), the threaded channel forming, together with a return channel (50) which connects the two end regions of the threaded channel, an endless circulatory channel in which an endless series of rolling bodies is accommodated. A deflecting element (32, 34) is mounted in a cutout (28, 30) in the nut adjacent each end region of the threaded channel. Each deflecting element has a deflecting channel (64) for transferring the rolling bodies between the threaded channel and the return channel (50) and between the return channel (50) and the threaded channel.

Abstract: A vehicle shifter and method in one form involves tilting a shift lever relative to a steering wheel as the steering wheel is tilted and also raising and lowering the shift lever respectively as the steering wheel is raised and lowered.

Abstract: A device for compensating the weight of a robot arm of a robot with a spring cylinder and having at least one helical spring is characterized in that there is at least one mechanism for the insertion and removal of at least one further, replaceable helical spring and preferably a pretension of at least the replaceable helical spring is adjustable. The device according to the invention makes it possible to modify the spring constant of the spring cylinder in order to individually adjust the compensating force desired for compensating the weight of the robot.

Abstract: A friction damper includes: a hollow cylindrical member with a bottom; a movable member disposed in said hollow cylindrical member in such a manner as to be movable in an axial direction of said hollow cylindrical member but immovable about an axis of said hollow cylindrical member; a coil spring disposed between said movable member and the bottom of said hollow cylindrical member, one end of said coil spring abutting against the bottom of said hollow cylindrical member and another end thereof abutting against said movable member; a rotating member disposed in said hollow cylindrical member in such a manner as to oppose said movable member and to be relatively rotatable about the axis of said hollow cylindrical member; and a frictionally-resisting-force generating mechanism for generating a frictionally resisting force to the relative rotation of said rotating member with respect to said hollow cylindrical member, and for causing said movable member to move away from said rotating member in the axial directio

Abstract: A brake lever is adjustably positionable relative to a handlebar of a motorcycle. The lever includes a base, a lever, and an adjustment mechanism. The base is adapted to be pivotally coupled to a master cylinder coupled to the handlebar, and the lever is pivotally coupled to the base. The adjustment mechanism controllably positions the lever relative to the base to control spacing between the lever and the handlebar. The adjustment mechanism includes a cylinder and a pin. The cylinder is rotatable about a longitudinal axis, is coupled to one of the base and the lever, and has a first and second bore hole extending radially therein for first and second preselected distances, respectively. The pin is coupled to the other of the base and the lever, is substantially perpendicular to the longitudinal axis of the cylinder, and is alternately engageable with the first and second bore holes.

Abstract: A steering device is comprised of a one-piece T-shaped bar stem which at one end is mounted to a head tube by way of a clamp. The bar stem has two ends which are essentially parallel. Attachment clamps are mounted to these ends, each clamp holding the handlebar tube. The handlebar tube is arranged parallel to the bar stem's ends.

Abstract: A machining center includes a spindle, a main table and an NC device for making a machining relative movement between the spindle and the main table. An index apparatus includes a housing mounted on the main table. An index table is supported on the housing for rotation. The apparatus further includes first and second push bars extending into the housing and outwardly of the housing for longitudinal movement, the NC device being arranged to make an extra relative movement between the spindle and the main table other than the machining relative movement, so that any one of the first and second push bars can be pushed and moved longitudinally thereof by the extra relative movement between the spindle and the main table.

Abstract: The invention is an improved ratcheting mechanism having a rotatable wheel with teeth, a shaft to which the wheel is affixed, at least two toggles, each with an arm for engaging a tooth of said wheel and each with an arched structure. The arched structure forms an arch over the shaft. There is also a contact for contacting either toggle to cause the arm of the contacted toggle to disengage from a tooth of the wheel and to allow rotation of the wheel in one rotational direction.

Abstract: A tightening nut for a collet, which is tightenable by a key, has a nut body with two end sides, a plurality of depressions provided on at least one of the end sides of the nut body for receiving correspondingly shaped pins arranged on the key, the depressions being formed as grooves with a dovetail-shaped cross-section, so that pins of the key which have a shape corresponding to the dovetail-shaped cross-section of the grooves are insertable in the grooves, the grooves having an opening width adapted to be greater than a maximum width of the pins.

Abstract: Structural Design of Universal Cavity Pit Wrench, comprising: a sleeving, a mounting panel, a plurality of pillar posts, retainer rods and a plurality of correspondingly functioning retraction springs, for assembling, the plurality of retainer rods are applied to penetrate the mounting panel, get coupled to the retraction spring, then engaged with pillar posts so that the pillar posts are invested with the capability for free retractions, to follow that, the mounting panel is planted into the inner wall of the hollow-set sleeving so that the plurality of pillar posts are neatly deployed on top of the sleeving, so that any nut to be set into the cavity pit, of any type or configuration, may be brought into the cavity pit by the action of those neatly deployed pillar posts, and once all the pillar posts are planted in full into the nut bearing cavity pit loosening or tightening up of an object nut may be proceeded with ease and convenience.

Abstract: A screw holder for securing a screw having a longitudinal shank and a central axis, a spindle adjoining the front end of the shank and having a bore therethrough flush with a groove, configured and dimensioned for receiving an elastic component to secure a screw into a steady position while turning the screw in or out.

Abstract: A torque wrench (40) with a variable-arm clicker mechanism, comprises a substantially tubular body (41), equipped with a handgrip (18) from which protrudes a ratchet gear element (4), suited for engaging with the blocking device which must be tightened. Inside the tubular body (41) is the clicker mechanism, which comprises a main lever (2) ending with the ratchet gear element (4), with fulcrum on the same tubular body (41) by means of a pin (3). The clicker mechanism has a pair of parallel intermediate levers (6), hinged on a fulcrum (10), integral with a mobile carriage (9), where the parallel intermediate levers (6) extend within the carriage (9) through slots (31, 32) which act as guides for the levers and are connected by means of a pin (12) to small levers (22) which command a push rod (20) that operates a spring (16).

Abstract: A method of machining seats of a compressor piston having an approximately hemispherical recess. A surface of a piston extending perpendicular to an axis of the piston is machined by annularly moving a cutting element while the cutting element is rotated with respect to the piston to form an annularly cut portion. The surface is further machined by moving the same cutting element in a direction toward the surface while the cutting element and the piston are relatively rotated to form a hemispherical recess in the surface. The firstly formed annularly cut portion becomes an annular chamfered portion on the periphery of the hemispherical recess. In this way, it is possible to form the hemispherical recess, and the annular chamfered portion on the periphery thereof, with the common cutting tool.

Abstract: A turning assembly for turning a workpiece includes a holder and plurality of turning bits mounted next to one another in a parallel relationship for simultaneously engaging a the workpiece. The turning bits are mounted in respective holding elements which are individually adjustably mounted in the holder. Spacers can be provided to space the turning bits apart. Safety devices are provided, each including an elastic element for frictionally retaining a respective turning bit and/or spacer within the holder to enable the holder to be manipulated without the turning bits and/or spacers falling out.

Abstract: Apparatus for the continuous, chipless separation of individual, identical pieces from a solid round workpiece, includes at least two cutting rollers, cooperating with one another, for separating and rolling the workpiece. Each of the cutting rollers is defined by a separating portion and has a coil, with the height of the coil of one cutting roller being equal or slightly greater than the radius of the workpiece in the separating portion, and with the coil of the other cutting roller so configured as to eliminate a collision in the separating portion with the coil of the one cutting roller.

Abstract: An automatic handle end cutter to cut individual handles from a web of handle material. A shuttle clamp grips the web and advances it into a cutting area at which time the web is held by two further clamps. The shuttle clamp withdraws and a first cutter cuts the web at an angle to the longitudinal axis of the handle. This is followed by a second cutter which cuts the web at an angle to the handle axis giving handle ends with the corners removed. The severed and configured end handle is ejected and the cycle begun again.

Abstract: A multiple cutting machine for rolls of kitchen paper and/or toilet paper comprising a base (20) onto which are fed at least two rolls or logs (15) by means of a respective conveyor with pushers (12) towards a head (21) bearing a cutting disk (32) which is motor-driven (in 33), characterized in that said conveyor with pushers (12) is driven by a stepper motor (19) in steps equivalent to a predetermined length of finished rolls (34), that said head comprises an upper portal structure (21) which may be lifted and/or lowered with respect to the lower structure (20) and supports at least one trolley (30) which moves along a closed loop path, runs on guides (29) and transports said cutting disk (32), continuously activated, to bring said cutting disk (32) from a position of release from said at least two logs (15) to a cutting position engaged on them following a direction essentially parallel to said lower structure (20).

Abstract: A TWO SCREEN ELECTRONIC MUSIC BOOK WHICH RETREIVES AND DISPLAYS MUSIC SCORES THAT ARE ENCODED ON DISKS OR ROMS OR COMPUTER-CARDS, OR ANY CONTEMPORARY MEANS, IN THE FASHION OF STANDARD PRINT MUSIC. EACH OF THE TWO SCREENS ARE THE SIZE OF STANDARD SHEET MUSIC, APPROXIMATELY NINE INCHES WIDE BY TWELVE INCHES HIGH, AND THE NOTATION SIZE OF THE MUSIC ITSELF IS THE SIZE OF MUSIC FOUND IN STANDARD SHEET MUSIC AND STANDARD MUSIC BOOKS. A COMPUTER TYPE KEYBOARD ALLOWS THE USER TO IMPUT DATA IN ORDER TO RETREIVE ANY OF THE THOUSANDS OF MUSIC TITLES WHICH ARE AVAILABLE. THE USER MAY SELECT THROUGH VARIOUS MEANS, SUCH AS BY COMPOSER, SONG TITLE, AND SPECIFIC MUSIC BOOK SELECTION. MUSIC COMPILED INCLUDES; SINGLE SONG, VARIOUS COMPILATIONS, ANTHOLOGIES, COMPOSER CLASSICS, JAZZ AND POPULAR, EDUCATIONAL MATERIAL, AND OTHERS. A SEEK AND SCAN FUNCTION PERMITS BROWSING THROUGH SELECTIONS. A PROGRAMMABLE PRE-SET SELECT FUNCTION PERMITS PERSONNAL SONG SELECTION ORDER.

Abstract: A fingerboard for stringed musical instrument having a series of predetermined grooves located at every position in which a series of consecutive frets would have otherwise occurred, in accordance with a predetermined tonal scale, providing the facilities of a fretted fingerboard and maintaining the characteristics of a fretless fingerboard.

Abstract: A pickup for an electric guitar includes a housing made to fill an existing cavity in an electric guitar body originally used for a dual-coil humbucking pickup. The pickup also has a single pickup coil mounted in the housing.

Abstract: A plurality of units for generating or controlling a tone are used in an electronic musical instrument, the number of which is variable depending on a performance grade of the electronic musical instrument. There is supplied control information for generating or controlling a tone, such as performance event data. Each of the units has identification information defining control information to be used by the unit and determines, in accordance with the identification information, whether or not a tone signal based on the supplied control information is to be generated or controlled.

Abstract: A slide action pistol including a frame; a barrel supported on said frame and having a bore on an axis of the barrel; a handgrip portion of the frame provided with a cavity therein for receiving a magazine; a firing assembly including a trigger, hammer and firing pin arranged in operative relationship; and, a slide having one end engaged with the barrel and an opposite end pivotally connected to the handgrip portion, the slide arranged to pivot upwardly and rearwardly when the pistol is fired.

Abstract: A piston includes an engagement portion that engages with a swash plate. The engagement portion is provided with a pair of arm portions and a coupling portion for coupling base ends of the arm portions each other. An axial rib extending in the axial direction is integrally provided in a central part of a back surface of the coupling portion in the width direction orthogonal to a central axis of a head portion of the piston. An accommodation groove is formed on an inner circumferential surface of a cylinder bore corresponding to the axial rib, such that the axial rib does not interfere with the cylinder bore when the piston moves to the top dead center.

Abstract: A piston-cylinder assembly has a principal structural group including a cylinder and another principal structural group including a piston rod which has a part-length axially displaceably arranged within the cylinder. The piston rod adopts a default stroke position without external displacement forces acting on the piston-cylinder assembly, the default position being determined by positioning equipment. The positioning equipment includes at least one energy accumulator which acts in the inward and outward movement directions of the piston rod as a function of the stroke position of the piston rod. The at least one energy accumulator includes a tension spring arrangement and a compression spring arrangement.

Abstract: A method of producing a hollow piston for a compressor, the piston including a head portion which is slidably fitted in a cylinder bore of the compressor, and an engaging portion which engages a reciprocating drive device of the compressor for reciprocating the piston, at least the head portion of the piston being hollow, the method comprising a step of preparing at least one piston blank by forging, which piston blank includes an engaging-portion-forming section which provides the engaging portion of the piston, and a head-portion-forming section which provides at least a part of the head portion of the piston, the at least one piston blank being prepared by a two-axes forging process which uses a forging die assembly including a set of two first dies which are movable relative to each other along a first axis which is one of two mutually perpendicular axes, and at least one second die which is movable along a second axis which is the other of the two mutually perpendicular axes.

Abstract: An ozone storage apparatus is disclosed for storing ozone efficiently. A process for efficient water treatment is also disclosed. The ozone storage container has a generally U-shape and is filled with an absorbent. The ozone is supplied and discharged from the same opening. The temperature of the absorbent is kept between 0° C. and −30° C. The generated ozone from an ozone generating means is cooled by a cooling device and is supplied to a storage device.

Abstract: An exhaust gas recovery method and apparatus comprising: a first process in which volatile organic compound gas in exhaust gas from a exhaust gas discharging source is absorbed into water by a scrubber; a second process in which water including the volatile organic compound, which is obtained in the first process, is frozen and the volatile organic compound herein concentrated such that the water including the volatile organic compound is separated into water including a high concentration of the volatile organic compound, level of concentration being higher than that of the water including the volatile organic compound which is obtained in the first process, and ice; a third process in which cold of the ice obtained in the second process is used; and a fourth process in which the water including a high concentration of the volatile organic compound, which is obtained in the second process, is reused, is provided.

Abstract: The atmospheric air possibly passes through a droplet separator (3) then passes through one or more filtration stages (5, 6). For the or the first filtration stage (5), use is made of bag-filter elements the filter medium of which is made up of synthetic fibers with a density which increases in the direction of flow of the air through this medium. The air is introduced thereinto at its natural temperature when this is between −20° C. and +5° C. approximately, outside of periods of freezing fog, supercooled rain or snow.

Abstract: The invention refers to a coffee machine having a brewing chamber and a beverage outlet. A valve assembly is inserted between the brewing chamber and the beverage outlet. The valve assembly comprises a valve seat and a valve body member movable with regard to the valve seat. The valve body member is biased by means of a spring and can be moved, against the force of the spring, by the pressure of the coffee beverage flowing through the valve assembly. Moreover, means are provided for adjusting the bias force of the spring. In such a design, the operator or user of the coffee machine can directly influence the amount of coffee to be brewed per time unit. Moreover, within the limits of the user selected value, the brewing water flows through the coffee powder received in the brewing chamber with an essentially constant flow rate, regardless the amount and granule size of the coffee powder received in the brewing chamber.

Abstract: A food processor that is operable in a dough mixing mode and in at least one other mixing mode. When in the dough mixing mode, the mixing impeller is driven at a continuous speed in the range of about 1,400 to about 1,600 rpm and preferably form about 1,400 rpm to about 1,550 rpm. When i8n the other mixing mode, the impeller is driven at a speed in excess of 1,600 rpm. The impeller has a blade assembly with an upper blade and a lower blade that are offset vertically and sloped toward one another to thereby slice a relatively wide swath of the dough ball during mixing.

Abstract: Enclosed rotisserie with added convenience, including a countertop resting box-like enclosure housing a safety rear mounted heating element and a power rotated dual rod spit assembly. The gear driven spit assembly may be easily inserted and removed straight into and out of the enclosure without need for angling or coupling the assembly to a power drive socket. The spit assembly may also be mounted at various distances from the heating element to decrease cooking times. The open front of the enclosure is from time to time covered by an inclined glass panel door which may be opened in various ways to facilitate food insertion into and removal from the enclosure, and which may be easily removed for cleaning or other purposes. The embodiment's design makes efficient use of valuable counter space by recessing back and raising off the countertop its controls.

Abstract: Apparatus for cutting and stirring curd, comprising a curd vat with a shaft drivable for rotation, which shaft carries a number of cutting frames extending radially from the shaft and arranged on the shaft in staggered relation, each cutting frame having two frame girders, which extend radially from the drivable shaft and between which a lattice work is situated formed from longitudinal knives and transverse knives, the transverse knives being mounted on the frame girders by welding. The transverse knives form openings which are in line, in which the longitudinal knives are received with ample play, while means are provided for substantially preventing displacement of the longitudinal knives in the longitudinal direction.

Abstract: A manually operable press comprises a manually pivotable actuating lever for effecting a forward press stroke and a return stroke of a press slide. A mechanical return stroke interlock inhibits a return movement of the press before the press slide has come to a lower end position of the press stroke. A cam plate within said return stroke interlock is connected for being pivoted together with the actuating lever. The cam plate has a groove-shaped guide cam provided with a plurality of lock protrusions. A spring-biased lock pin runs along the guide cam and is adapted to run freely along the guide ram in an operational direction but is inhibited by the lock protrusions within the guide cam from running in a direction opposite the operational direction. An opening each is provided in the guide cam at the lock protrusions. Unlocking pins are provided in each of the openings.

Abstract: Device and method for the automatic register setting of printings printed by plate cylinders (6, 7, 8, n1) in a rotary machine using inks of a plurality of colors. The printing machine particularly comprises a succession of printing units (3, 4, 5, n), at least one pulse generator (23), two pull rollers (14, 15) located downstream of said printing units (3, 4, 5, n), means (7, 8, n1, 12, 13, n3) of correction to correct some register errors, scanning heads (24, 25, n6) each located near and downstream to the respective printing units (4, 5, n). Each printing unit (3, 4, 5, n) particularly includes one of said plate cylinders (6, 7, 8, n1) as well as one of said pressing cylinders (9, 10, 11, n2). Each pressing cylinder being controlled by one of the control units (20, 21, 22, n5).

Abstract: A device for internal mass balancing in self-reciprocating rolls, in which a balancing weight is arranged so as to permit a force (Fa) in the direction opposite to a reciprocating movement (A,B).

Abstract: In a printing plate automatic exposing device, a vacuum pump and a pressure sensor are provided in communication with a detection hole provided in a surface plate. When a photopolymer plate is set on the surface plate, a degree of vacuum of the detection hole becomes a predetermined degree of vacuum due to operation of the vacuum pump.

Abstract: The invention relates to an initiator for a pyrotechnic gas generator intended for motor vehicle safety.

Abstract: One end of a running direction of a bogie, two guiding wheels are arranged, another end of the running direction of the bogie, two stabilizing wheels are arranged. The stabilizing wheel is positioned in a lower portion of the guiding wheel. The stabilizing wheel has a function for guiding the bogie along to the monorail and a function for presenting a falling of the bogie. A total number of the guiding wheels and the stabilizing wheels can be lessened, in particularly a number of the guiding wheels can be lessened, and accordingly the bogie can be manufactured with a low cost. A traction link for connecting the bogie and the car body is arranged on one end of the bogie, and accordingly a length of the bogie can be shortened.

Abstract: A metal compound solution of a metal compound represented by formula (I): 1

Abstract: A self-sacrifice type metal corrosion inhibitor is prepared by dispersing one or more kinds of metal powder having a greater ionization tendency than that of a metal to be treated and a water-insoluble thermoplastic resin powder in water containing a water-soluble anticorrosion agent, a surface-active agent and a thickener to from a treatment solution. The treatment solution is applied to the surface of the metal to be treated, which is heated to melt the thermoplastic resin powder and form a thermoplastic resin layer fixed to the surface of the metal. It forms a metal corrosion-inhibiting layer fixed to the surface through the thermoplastic resin, which acts as an adhesive layer.

Abstract: Pigment particle growth and/or crystal phase directors of the following formula:

Abstract: The present invention provides new solid solutions having a corundum-hematite crystalline structure which are useful as inorganic color pigments. Solid solutions according to the present invention include a host component having a corundum-hematite crystalline structure which contains as guest components one or more elements from the group consisting of aluminum, antimony, bismuth, boron, chrome, cobalt, gallium, indium, iron, lanthanum, lithium, magnesium, manganese, molybdenum, neodymium, nickel, niobium, silicon, tin, titanium, vanadium, and zinc. Solid solutions according to the present invention are formed by thoroughly mixing compounds, usually metal oxides or precursors thereof, which contain the host and guest components and then calcining the compounds to form the solid solutions having the corundum-hematite crystalline structure. Some of the new solid solutions according to the present invention exhibit relatively low Y CIE tri-stimulus values and relatively high near infrared reflectance.

Abstract: The object of the present invention is to provide a frictional resistance reducing vessel and method of reducing the frictional resistance of a hull that are able to effectively conserve energy consumed during operation by reducing frictional resistance at a low level of energy consumption. In the present invention, a negative pressure region (51), which is at low pressure relative to a gaseous space, is formed in the water accompanying operation of a hull (30), and together with bubbles being guided to this negative pressure region (51) in the water from the gaseous space, the state of this negative pressure region (51) is changed based on changes in vessel velocity.

Abstract: A flag set may comprise a pole (10) and a plurality of flag units (20a, 20b) that can be attached to the pole (10) at different angles with respect to the pole (10). A support arm (30) may hold the top edges of the plurality of flag units (20a, 20b). An attachment part (40) is provided at the top of the pole (10) and may include attachment slits (47) and attachment grooves (48) that open upward so that the support arm (30) can be inserted from the top. A fastening part (50) anchors the support arm (30) to the attachment slits (47) and attachment grooves (48). The fastening part (50) is attached to the attachment part (40) after the support arm (30) is inserted into the attachment slits (47) and attachment grooves (48) to lock these parts together.

Abstract: A method and apparatus for homoepitaxial growth of freestanding, single bulk crystal Gallium Nitride (GaN) are provided, wherein a step of nucleating GaN in a reactor results in a GaN nucleation layer having a thickness of a few monolayers. The nucleation layer is stabilized, and a single bulk crystal GaN is grown from gas phase reactants on the GaN nucleation layer. The reactor is formed from ultra low oxygen stainless steel.