Abstract: A distributor for supplying burners of a gas turbine with fuel, air and coolant. Prior art distributors contain a combination of ring lines and tie lines, over which the fuel is distributed to individual burners. It is very complicated and expensive to replace defective components, and in some cases the entire apparatus has to be dismantled to do so. The distributor of the invention has two or more modules, depending on the number of burners, which are assembled from distributor units and regulating units in such a way that they can be taken apart again. For each burner, at least one regulating unit is provided, from which at least one supply line for the fuel, air and coolant extends to the burner.

Abstract: A refrigerant-circulating system which comprises a refrigeration cycle comprising a refrigerant compressor, a condenser, an expansion mechanism and an evaporator to form a refrigerant circuit and employing a refrigerant which contains no chlorine, wherein an aromatic polyether oil having as a base oil structure a benzene ring having an ether bond is employed as a refrigerator oil.

Abstract: In an air conditioner having a plurality of valves for adjusting the flow of refrigerant circulating in an outdoor unit and an indoor unit, and a controller for controlling the opening degree of each of the valves while successively switching the control target value between these valves and a valve control method for the air conditioner, the controller judges whether the opening degree of a currently-operated (controlled) valve which is currently being subjected to the opening degree control operation is coincident with a target value. If the opening degree of the valve reaches the target value even within a predetermined one-operation time set for the valve, the control target valve is immediately switched to a next valve. Further, if the opening degree of the valve does not reach the target valve even after the predetermined one-operation time, the one-operation time is extended to continue the opening degree control operation on the currently-operated valve.

Abstract: An environmental control unit to supply cool dry air to an aircraft cabin has a plurality of bleed air sources from an aircraft engine compressor supplying working fluid to an air cycle cooling circuit. An electronic control computer having a plurality of inputs and selects a bleed air source depending upon cabin cooling and pressurization requirements. A speed control valve responsive to an output from the control computer, modulates the flow of working fluid through a turbo-alternator, thereby synchronizing the frequency of electrical power produced by the turbo-alternator with that of an aircraft engine alternator. The turbo-alternator supplies additional electrical power to the aircraft, thereby minimizing the deleterious effect of warm air bled from the engine compressor on aircraft performance.

Abstract: An air conditioning system (10) for a passenger compartment of a motor vehicle having a windscreen comprises a first heat exchanger (14) positionable outside the passenger compartment; a second heat exchanger (18) positionable inside the passenger compartment; an expansion device (16) positioned in a first fluid passage (22) between the heat exchangers; an electronically controlled variable stroke compressor (12) for pumping fluid into the second fluid passage and either in a first direction (X) or in a second direction (Y); reverse flow means (32) in the second fluid passage for controlling the direction of the flow of fluid; first sensing means (36, 40) providing a first output signal indicative of the dewpoint temperature of the air leaving the second heat exchanger; second sensing means (53; 44,46,48) providing a second output signal indicative of the temperature of the windscreen; and control means (26,30) electrically connected to the first and second sensing means and to the compressor for receiving th

Abstract: A temperature sensing portion of a control valve main body is located in a first refrigerant passage for communicating an outlet side of a radiator with an inlet side of an internal heat exchanger, and a second refrigerant passage for introducing the refrigerant flowing from the internal heat exchanger to an upstream side of a valve port in a refrigerant flow is formed in a casing main body. Accordingly, since it is possible to reduce a delay of temperature change in a sealed space (control chamber) with respect to refrigerant temperature change at the outlet side of the radiator, a temperature response characteristic of the pressure control valve is improved. Further, since it is not necessary to separately assemble a capillary tube, a temperature sensing cylinder or the like to the outlet side of the radiator, it is possible to reduce the number of processes for assembling the CO2 cycle and to attempt to reduce a manufacturing prime cost.

Abstract: A self-contained evaporative personal cooling device fits conformally around a user's neck or other body portion. The device includes at least one heat dissipating member that is urged conformably against the body portion to absorb heat therefrom. The device-facing side of this member preferably has a large surface area with a liquid-wickable surface. A liquid-retainable material contacts at least a portion of the wickable surface area and also defines at least one air plenum. Ambient air is moved along the plenum, preferably by a battery-powered fan. The air transfers heat from the member, cooling the user, and is exhausted from the device. A thermostat can sense temperature at the heat dissipating member to control duty cycle of the fan to prevent overcooling the user.

Abstract: A separate type air conditioner has an indoor unit and an outdoor unit. The indoor unit comprises (a) a base frame, (b) a power source board incorporating a control device, (c) operation members mounted on the power source board, and (d) a front grille incorporating an operation unit, being disposed in the base frame to cover said power source board, in which the operation unit has guides, and the operation members are led by the guides and fitted into the front grille.

Abstract: A cascade refrigeration system is provided. The cascade refrigeration system includes a low stage having a first refrigerant flowing therethrough and a high stage having a second refrigerant flowing therethrough. The low stage includes a compressor and evaporator coils. The input of the evaporator coils is operatively connected to the output of the compressor by an input conduit and the output of the operator unit is operatively connected to the input of the compressor by an output conduit. A bypass line has an input in communication with the input conduit and an output in combination with the output conduit. A bypass heat exchanger effectuates the heat exchange relationship between the first refrigerant flowing through the bypass line and the first refrigerant flowing through the input conduit.

Abstract: A container for shipping and storing food products in two separate chambers has an outer casing enclosing a temperature controlled container fabricated from an insulating material. The temperature controlled container includes a lid and a base. The base has a base chamber including several ventilation channels formed on the interior of the base chamber. The lid has a first side for sealing the base chamber, which also includes several horizontal channels formed in the first side, and a lid chamber divided into several food product receiving chambers. A lip is formed on the base and a corresponding groove is formed on the lid, such that the lip interlocks with the groove for sealing the base chamber. Moreover, dry ice may be positioned within the temperature controlled container with respect to a plurality of food products to control the temperature within the temperature controlled container.

Abstract: The invention includes a step of supplying at least one heat control means of heating means and cooling means for conditioning the air temperature, and a step of manufacturing a fan for blowing air controlled by the heat control means, in which the step of manufacturing the fan includes a step of preparing a compound material having (i) glass fiber, and (ii) at least one copolymer of a copolymer produced from a monomer containing acrylonitrile and styrene, and a copolymer produced from styrene and a heat resistant monomer, a step of forming a molded part by molding the compound material, a step of assembling a fan by using the molded part, and a step of clearing the molded part of strain by annealing the fan by hot air circulation in a temperature range lower by about 5° C. to about 20° C. than the load deflection temperature, and in a wind velocity range of about 1 m/sec to about 3 m/sec. The fan having a load deflection temperature of about 100° C.

Abstract: A refrigerant filter (40) designed for installation into a block fitting (10) of the type that detachably connects refrigerant lines (12,14) to an evaporator. The filter (40) includes a cylindrical mesh screen (42) and a supporting frame (44) that fits into the open end (30) of the liquid refrigerant supply (14) line before the supply line (14) is connected by the fitting (10) to the evaporator lines (16,18). The filter supporting frame (44) has an end plug (48) that fits closely into the line (14), assuring and all refrigerant flow is forced through the screen (42), without by passing the filter (40). The plug (48) also has a stop member (50) that both assures that the filter (40) is not over inserted at installation, and that the plug (48) is not ejected from the line (14) during operation.

Abstract: In an air conditioner for a motor vehicle, an internal heat exchanger is combined with a condenser and a collector.

Abstract: There is disclosed a multi-stage compressing refrigeration device for multi-stage compressing a refrigerant using a plurality of compressing means. Its object is to enhance reliability, intend to reduce input and improve refrigeration effect, and to enhance efficiency. In the multi-stage compressing refrigeration device, low-stage compressing means and high-stage compressing means, a condenser, first expanding means, an intermediate evaporator, second expanding means and a main evaporator constitute a refrigeration cycle. The refrigerant flowing out of the condenser is branched into one refrigerant passed to the intermediate evaporator via the first expanding means and the other refrigerant passed to the main evaporator via the second expanding means. Heat exchange is performed between the refrigerant flowing into the second expanding means and the intermediate evaporator.

Abstract: A method and apparatus for facilitating the conversion of liquid carbon dioxide to solid carbon dioxide particles for compression into pellets or blocks using a liquid carbon dioxide conversion apparatus having a compression assembly and at least one snow accumulator assembly attached thereto includes introducing liquid carbon dioxide into the interior of a filter where it changes phase to a mixture of gas and solid particles. The gas is emitted through the filter leaving the solid particles within the filter interior. The carbon dioxide particles are then transferred from the filter to a compression chamber where they are compressed by a compression piston.

Abstract: There is provided an air separation apparatus comprising, in fluid flow communication, a compressor having at least two stages in senes, a first outlet from a stage upstream of the final stage, an air purifier in fluid flow communication with the outlet and producing purified air in two parallel flow paths. One of the flow paths is in fluid flow communication, through a heat exchanger, to a rectification column that produces a purified nitrogen product. The second flow path in fluid flow communication with an inlet of the compressor downstream of the chosen stage and provides a purified air product via the compressor through a second outlet thereof also downstream of the chosen stage.

Abstract: In this condenser in which the fluid as it condenses flows downward, in cross section, that part of the outlet box (18) which lies between its lowermost point (28) and the point (31) of a liquid-outlet pipe (30; 35) connected to this box, lies completely at a level that is lower than the level of the lowermost point (A) of the distributor corrugation (13). Application to the main vaporizer-condensers of double air-distillation columns.

Abstract: A method for producing a silica glass for photolithography, which comprises the following steps: jetting a starting material gas, an oxygen gas and a hydrogen gas from a burner and depositing and consolidating silica glass powder on a target to form an ingot having a growing direction, where the ingot is grown in such a manner that at least a part of glass synthesis face on the ingot having the silica glass powder deposited and consolidated is a plane substantially perpendicular to the growing direction of the ingot, thereby to obtain the ingot having a portion in which striae are substantially perpendicular to the growing direction of the ingot; and cutting out of the ingot the portion in which the striae are substantially perpendicular to the growing direction of the ingot, thereby to obtain a silica glass having striae which are substantially parallel to each other and are planar.

Abstract: Disclosed is an optical waveguide fiber having a compressive outer layer that includes TiO2 in the SiO2 matrix glass. The compressive outer layer includes crystalline structures containing TiO2 that are predominately rutile. Also disclosed is a method for making an optical waveguide fiber having a compressive outer layer. The compressive outer layer can contain an additional metal oxide that is preferentially lost from the outer layer, instead of the TiO2, during the drying and consolidation step.

Abstract: In accordance with the invention, particle contamination in drawing optical fiber is reduced by coating the glass preform with a particle-digesting coating prior to introducing the preform into the induction furnace. At least the end of the preform should be coated and preferably all of the preform. When the preform enters the hot zone, the coating melts and digests refractory particles. The coating material and digested particles dissolve into the silica glass at a low surface concentration that does not substantially change the performance of the drawn fiber. The preferred particle-digesting coating is lithium tetraborate.

Abstract: A method of making a segmented core optical waveguide preform for making fiber that is resistant to attenuation increases due to hydrogen and heat aging. A first core region comprising a silica glass rod containing at least a first dopant is inserted into a central opening of a second core region comprising silica soot containing a second dopant. The first core region and second core region are consolidated together to form a segmented core region and cladding is deposited on the outer surface of the segmented core region.

Abstract: An apparatus for forming a optical fiber which includes a furnace for softening an optical fiber blank; a tractor for drawing the optical fiber from the softened optical fiber blank; and a first applicator for applying a coating of a first coating material to the optical fiber, the first applicator having a rotatable die.

Abstract: A method and device is disclosed for distributing a veil by applying low frequency sound to at least one portion of the veil, and causing the veil to deviate in its generally downward direction of travel. In its simplest embodiment, the lapping device of the present invention includes one low frequency sound generator having one resonator tube shaped for emission of low frequency sound and having an open end from which sound may be emitted to a portion of a veil. Preferably, the lapping device has two resonator tubes whose open ends are in spaced, opposing relationship, and in the preferred method low frequency sound is alternately applied at generally opposing locations near the veil, causing portions of the veil to deviate in generally alternate directions in its direction of travel.

Abstract: A yarn-locking/cutting device for circular stocking knitting machines. The device includes two elements (16, 18), hanging from a support (17) which is arranged in a zone contained between the yarn guides and the cutting unit. The elements are inclined in the direction of rotation of the machine. One element is controlled and has a mouth for taking and for moving the yarn.

Abstract: A clothes treating apparatus including a cabinet defining an interior region in which a garment can be hung. A door is movably connected to the cabinet for closing the interior region. A fluid atomizing nozzle is supported by the cabinet and is fluidly connected to a reservoir containing a conditioning composition. An air compressor is connected to the nozzle for supplying air to the nozzle such that when the air compressor is energized the conditioning composition is drawn out of the reservoir and sprayed from the nozzle in a mist form into the interior region. A fan is provided for circulating air within the interior region such that the mist form of the conditioning composition is uniformly distributed onto the garment hanging within the interior region. Accordingly, the clothes treating apparatus provides a means for applying a conditioning composition onto garments which does not include means for supplying steam into the interior region.

Abstract: A training handcuff key for use during training of security officers in the use of handcuffs used to restrain a subject. The training key includes a magnet washer that holds the key adjacent the surface of the handcuff keyhole, even during violent jerking and/or dropping of the handcuffs during simulated apprehension situations. The training key operates in all respects as does a standard handcuff key, but includes the feature of remaining adjacent the handcuff keyhole, while having a profile which does not interfere with the training use of the handcuffs. The training key is removable after completion of the training exercises, permitting the handcuffs to be used in a standard manner. Use of the training handcuff key dramatically reduces the time required to remove the handcuffs after they have been applied to the subject, therefore allowing the trainer and the trainees more time to develop proper and efficient methods of handcuffing and dramatically improve their skills in proper handcuffing techniques.

Abstract: A retightenable and resettable strap lock for luggage includes a female buckle member with number wheels, a male buckle member for releasably engaging with the female buckle member, and a strap connected to the female buckle member and the male buckle member. A slide member is mounted in the female buckle member for restraining movement of the strap. An end of the strap is pullable to further tighten the luggage even if the male and female buckle members are engaged with each other, yet loosening of the strap by pulling the end of the strap in the opposite direction is prevented. A pull tab holder is mounted in the male buckle member for receiving two pull tabs of a zipper of the luggage. The pull tab holder is retained in place by the female buckle member when the male and female buckle members are engaged with each other.

Abstract: A security mechanism is provided, for use with portable equipment, such as a “notebook” type portable computer, which is to be coupled for use with stationary equipment, such as a port replicator or docking station. The security mechanism includes locking structures, located in complementary positions on the computer and the port replicator, for engaging each other to prevent theft by removal of the computer from the port replicator. The locking structures on the computer are standardized across a line of different computer models, so that the security mechanism is operative regardless of which of the different computer models is docked. Specifically, the locking structures of the various computers within the line of products are in corresponding positions on the computers, relative to the positions the computers occupy when docked. Therefore, the locking structures engage the same way, regardless of which computer of the line of products is docked.

Abstract: A locking device comprises a stopper support fixed to the body of a fluid controller, and a stopper nonrotatably mounted on the stopper support and engageable with a channel opening-closing handle for preventing the rotation of the handle. The stopper mounted on the support is movable upward and downward between a locking position wherein the stopper engages with the handle and an unlocking position wherein the stopper is out of engagement with the handle. The stopper support is formed with an opening for fitting the controller body therein and an aperture for fitting the stopper therein. The stopper has a vertical portion slidably fitted in the aperture and formed with a lock attaching bore.

Abstract: A door lock having a clutching mechanism for selectively engaging and disengaging the outer handle of the lock from a key spindle having latch scoops for operably engaging a latch slide. The key spindle contains a cam mechanism for moving a dogging arm from a clutched position where the outer handle through a keyed outer spindle is keyed to the key spindle to an unclutched position where the dogging arm is positioned within a circumferentially extending slot which permits about 60° rotation of the outer handle relative to the key spindle without movement of the key spindle. Hard stops are provided on an outer driver and outer hub which limit movement of the outer handle to less than the rotation permitted by the clutching mechanism.

Abstract: A driving arrangement for rolling stands of a rolling mill, is described. The driving arrangement includes a control system which prescribes desired values for the rolling stands via control units, the rolling stands having at least one electric motor which is supplied with electric energy by a power supply system via at least one converter having turn-off power semiconductors. The converter has an air-cooled design. The cooling power is dimensioned such that the temperature of the turn-off power semiconductors does not exceed a critical temperature limit for continuous operation. The converter includes heat sinks which have an optimum design. At least some of the heat sinks are connected thermally in parallel.

Abstract: There is disclosed a bending device, in which working data of feeding pitch between bending points, bending direction angle and bending angle is prepared from design data of a work, and a dividing point is determined to share the bending process by first and second joint type robots at one place of a straight line of the work able to be held by a chuck mechanism. After trial working, the working data is corrected. During the working, the first and second joint type robots having joints rotatable around axes parallel with the axial direction of the work are moved to the bending position. The work is held by a bending die and a clamping die rotatable around the bending die of a bending mechanism attached to the tip end of each joint type robot, and bent/worked by rotating the clamping die.

Abstract: The invention relates to a method and multistation device for folding profiles. The folding stations (1, 11, 15, 16, 17) required are modules mounted interchangeable and adjustable on a common machine body (2), which permits quick and simple adaption to the folding requirements. It is thus possible, with one single machine, to implement a whole series of folding processes. With regard to the machine operation, such stations are selected as needed, fitted and set depending on folding criterion.

Abstract: Disclosed is a strength-enhancing apparatus for a metal part comprising a recovery mechanism for sucking powder flow dust generated from glass beads crushed on a surface of a gear in a chamber to recover it together with drainage, wherein the recovery mechanism includes a liquid-spouting means arranged on a ceiling in the chamber, for effecting showering for the whole interior of the chamber. Accordingly, it is possible to reliably recover the mist containing the powder flow dust floating in the chamber, and it is possible to reliably avoid adhesion and accumulation of the powder flow dust.

Abstract: A mask for masking a corner of a metal component during peening. The component has a first surface defining an opening in the component and a second surface intersecting the first surface of the component at the corner. The mask includes a plug sized and shaped for insertion in the opening adjacent to the corner to cover the corner during peening. Further, the mask includes a rim surrounding at least a portion of the plug sized and shaped for surrounding at least a portion of the opening to cover the corner during peening thereby preventing the corner from being peened.

Abstract: An apparatus for spin forming two partial wheel rims including a mandrel having a first portion for spin forming a first partial wheel rim and second portion for spin forming a second partial wheel rim. The first and second portions of the mandrel have different shapes such that the first and second wheel rims have different shapes. The mandrel is mounted upon a spin forming machine and is utilized to spin form a hoop of metal into a double wheel rim which is split to form the two partial wheel rims.

Abstract: A tandem with two reversible four-high rolling stands (14a, 14b) for the cold rolling of thin strip to 0.18 mm, advantageously from 0.18 to 1.2 mm, includes at least a first (12a) and a second (12b) drawing reel, mans to heat the rolls and the lubricating oils, a control and command unit, and a first lubrication system (17), the working rolls (15) being associated with replacement rolls (115), the stands (14a, 14b) including a first working condition with the working rolls (15) and at least a second working condition with the replacement rolls (115). Below the stands (14a, 14b) there is a first (20a) and a second (20b) collection tank to collect the lubrication fluid, there also being a second finishing lubrication system (18) which can be activated in alternation with the first system (17).

Abstract: A twisting machine for polygonal cross-section bars having an independent jaw chuck fitted on a mandrel and a counteracting support slidable on a prismatic guide, which is firmly connected to the machine and parallel to the mandrel; the jaw chuck includes a mutually co-operating rotary connection between the mandrel and the chuck in the form of a groove for ball-recirculating and a mutually engagement, such as an abutment projection diametrally projecting from and integral with the mandrel and a longitudinal pin connected to the chuck, which are adapted to drive into rotation the chuck by the mandrel, after a free rotation of the mandrel along an arc with an angle less than a round angle.

Abstract: A metal forming machine includes a moveable central pillar, a slidable blade assembly mounted to the pillar for reciprocating movement therewith, and a fixed slide plate mounted to a stationary block secured to the pillar. A moveable or slideable blade holder of the blade assembly and having a ramped wall carries a blade or forming element mounted thereto. Respective wear plates mounted to the slide plate and blade holder contact each other during movement of the pillar. A blade or forming element secured to the slidable holder contacts metal to be formed or pierced. The stop block assembly associated with the slidable blade holder limits movement of the blade in a first direction such that continued force applied thereto during movement of the pillar causes movement of the blade or forming element in a second direction transverse to that of the first direction.

Abstract: There provides a tool, which is capable of smoothly executing a cutting and protruding process in all the steps from the starting to ending of cutting and protruding of a small protrusion when the protrusion is cut and protruded on an upper surface of a workpiece.

Abstract: A forging die apparatus comprises a punch for applying a pressurizing force to a forging material arranged in a cavity, a cylindrical member installed to surround a part of outer circumference of the punch, for making displacement integrally with the punch, and a first ring member formed with a hole for forcibly inserting the cylindrical member therein when the punch applies the pressurizing force to the forging material.

Abstract: A molding tool is designed to make a cooling device and is formed of a lower mold, a lower mold housing, a punching head, and an urging plate. The lower mold is provided with a plurality of through holes. The lower housing is provided with a molding hole and is fixed on the lower mold such that the molding hole is corresponding in location to the through holes of the lower mold. The punching head is fastened with the bottom of the upper mold seat of a punching machine and is provided with a plurality of cavities and ribbed slots. The urging plate is provided with an opening and is disposed under the upper mold seat of the punching machine such that the punching head is put through the opening. The urging plate is further provided with an insertion slot extending along the edge of the opening.

Abstract: A bend angle correction method directed to carrying out simple and accurate penetration of a movable die into a fixed die to produce a uniform angle throughout the length of a workpiece, being unaffected by material variations. When bending a sheet-like workpiece to a desired angle by the cooperative movement of a movable punch driven by three or more drive shafts and a fixed die disposed in an opposing relationship with the movable die, the bend angle of the workpiece is measured during bending operation and the difference between the measured bend angle and a target angle is obtained, at at least three points which are the ends and center of the workpiece. Based on the differences, correction amounts for the penetration of the movable die are obtained on a shaft-load imposed point basis.

Abstract: A method for estimating the error of a measured shape of a workpiece, as measured using an optical probe. A series of N equally spaced distance measurements are transformed to a power spectrum. The average power above a cutoff index is divided by N to give an estimate of the variance of the shape measurement.

Abstract: A method and apparatus for evaluating the end cap round transducer horn assemblies used in debubbling operations wherein the ECR THA can be evaluated off-line at both high and low power and on-line by making electrical measurements on the ECR THA. The electrical measurements are used to characterize the physical condition of the piezoelectric ceramics of the THA. A test box is employed to practice the method. The test box is connected between the THA and a signal analyzer. Power is supplied to the THA and the electrical signals across the THA are sampled. The sampled electrical signals are transmitted to the signal analyzer while maintaining the amplitude and phase relationship thereof. The sampled electrical signals are used to generate an impedance trace for the particular THA. That impedance trace is compared to a model impedance trace. In such manner, it can be determined whether the ECR THA is operational.

Abstract: Provided is a mass and heat flow measurement apparatus comprising sample and reference microresonators, such as sample and reference quartz crystal microbalances; sample and reference heat flow sensors, such as sample and reference isothermal heat conduction calorimeters; and sample and reference heat sinks coupled thermally to the heat flow sensors. The apparatus may be used to measure changes in mass due to a sample on a surface of the sample microresonator and also to measure heat flows from the sample on the surface of the sample microresonator by utilizing the heat flow sensors, which are coupled thermally to the corresponding sample or reference microresonators. Also provided is a method for measuring the mass of a sample and the flow of heat from the sample to the heat sink by utilizing such apparatus.

Abstract: Real-time and accurate detection of the concentration of hydrogen peroxide vapor supplied into a treatment vessel is made possible by a method and apparatus that permits efficient and effective sterilization, disinfection, or the like with hydrogen peroxide vapor. The concentration of hydrogen peroxide vapor in a treatment vessel is detected by a semiconductor gas sensor in a treatment system where an object to be treated is brought into contact with hydrogen peroxide vapor in a treatment vessel with the pressure fixed at a constant level.

Abstract: The present invention provides a gas leakage detecting apparatus capable of detecting a gas leak in a cylinder cabinet with accuracy. The gas leakage detecting apparatus comprises a first air take-out pipe for taking out air from the inside of an exhaust duct of a cylinder cabinet and leading the same air to a gas sensor; a second air take-out pipe for taking out air at a given position in said cylinder cabinet and leading the same air to said gas sensor; a first shut-off valve and a second shut-off valve respectively provided on the respective air take-out pipes so that air from these air take-out pipes is selectively led to said gas sensor; and a control means for controlling the opening and closing operation of these shut-off valves. Owing to this construction, one is able to monitor the location of the gas leak upon taking out air from the cylinder cabinet through the second air take-out pipe.

Abstract: An instrument for determining a characteristic of a biological fluid or a control includes a radiation-reflective surface, a first source for irradiating the surface, and a first detector for detecting radiation reflected from the surface. A cuvette for use with the instrument holds a sample of the biological fluid or control the characteristic of which is to be determined. The cuvette has two opposed walls substantially transparent to the source radiation and reflected radiation. The first source and first detector are disposed adjacent a first one of said two opposed walls and the radiation reflective surface is disposed adjacent a second of said two opposed walls.

Abstract: The present invention provides a method and apparatus to adjust the rotation balance of a disk with high accuracy and ease during manufacturing. A disk is attached to a spindle to form a disk assembly having an adjustable center of gravity. The disk assembly is rotated and thereby generates vibration. A force, which is a function of the vibration, is applied to one or more components of the disk assembly to reduce vibration of the disk assembly below a predetermined value thereby causing the disk assembly to have a second center of gravity.