Abstract: A combustion turbine power generating system and method in which the system includes an AC power generator, a combustion turbine that drives the AC power generator, a first converter enabling conversion between AC current and DC current and having an AC side connected to the AC power generator, a second converter enabling conversion between AC current and DC current and having a DC side connected to a DC output side of the first converter, a smoothing condenser connected between the first and second converters, a generator-speed control unit that controls the first converter and a DC voltage control unit that controls a DC-side voltage of the second converter. The generator-speed control unit controls the first converter on the basis of a number of revolution command value.

Abstract: A fuel-air premixing module is designed to reduce emissions from a gas turbine engine. In one form, the premixing module includes a central pilot premixer module with a main premixer module positioned thereround. Each of the portions of the fuel-air premixing module include an axial inflow swirler with a plurality of fixed swirler vanes. Fuel is injected into the main premixer module between the swirler vanes of the axial inflow swirler and at an acute angle relative to the centerline of the premixing module.

Abstract: A fuel control system, battle override valve and a method of controlling bypass fuel in a fuel system are disclosed. A battle override valve 30 for an engine fuel system 10 includes a metering valve 50 having a rate limiting function providing for control of a slew rate during an operation of the battle override valve 30. A transfer valve 70 having a manual fuel control operating position and a normal fuel control operating position permits a flow of fuel between the metering valve 50 and the transfer valve 70. The transfer valve 70 is controlled between the normal fuel control operating position and the manual fuel control operating position in order to regulate a flow of fuel during a manual or bypass fuel system 10 operation.

Abstract: A combustor for a gas powered turbine which employs a hypergolic or high energy air stream and an injector design to mix fuel with the high energy hypergolic air stream faster than the combustion rate of the fuel. A heat exchanger and a catalyst combusts a first portion of fuel in air without the production of undesired chemical species. A gas powered turbine requires expanding gases to power the turbine fans or blades. Fuel is generally combusted to produce the required gases. A catalyst is employed to lower the combustion temperature of the fuel. The catalyst is placed on a set of tubes in a heat exchanger such that a portion of the thermal energy may be transferred to the air before it engages the catalyst. After encountering the catalyst, the fuel that was combusted increases the temperature of the air to an auto-ignition temperature so that no other ignition source is needed to combust additional fuel added later.

Abstract: Air tubes are circumferentially spaced around the outer liner of an annular combustor for a microturbine engine in proximity to and downstream of a dam extending into the combustion chamber for reducing the emission of NOX. The air tubes are dimensioned so that the length to passage diameter is such that a swirling motion of the air injected into the combustion zone is normal to the center line of the annular combustor.

Abstract: A beverage dispensing system includes a cooling chamber filled with a bath of cooling fluid for cooling beverage fluids. A cooling unit, including an evaporator coil extending from the cooling unit into the cooling chamber, freezes the cooling fluid into a frozen cooling bank about the evaporator coil. Sensor units positioned at desired locations about the evaporator coil provide output corresponding to the size and shape of the frozen cooling bank. Also, a control unit reads the output from the sensor units and operates the cooling unit to regulate the growth of the frozen cooling bank. In addition, the control unit may read output from temperature sensors attached to dispensing valves or monitoring ambient temperature conditions.

Abstract: A defrost refrigeration system having a main refrigeration system and comprising a first line extending from a compressing stage to an evaporator stage and adapted to receive refrigerant in high-pressure gas state from the compressing stage. A first pressure reducing device on the first line is provided for reducing a pressure of the refrigerant in the high-pressure gas state to a second low-pressure gas state. Valves are provided for stopping a flow of the refrigerant in a first low-pressure liquid state from a condensing stage to evaporators of the evaporator stage and directing a flow of the refrigerant in the second low-pressure gas state to release heat to defrost the evaporators and thereby changing phase at least partially to a second low-pressure liquid state. A second line is provided for directing the refrigerant having released heat to the compressing stage, the condensing stage or the evaporator stage.

Abstract: An air conditioning system for a motor vehicle includes an air conditioning box through which blower air can flow and in which an evaporator and, at a distance therefrom, a heat exchanger are arranged, and including an air distributor which has air outlet openings which may be controlled by air control elements, and a water outlet arranged between the evaporator and heat exchanger, and having a control arrangement for forcibly ejecting the blower air emerging at the evaporator via the water outlet into the vehicle environment. For the purpose of forcibly ejecting the loaded blower air in a cost-effective and construction-space-saving manner without losses in efficiency, the control arrangement may be formed in the air outlet openings by the air control elements which, during the ejection, are forcibly closed.

Abstract: The object of the present invention is to provide a method of controlling a refrigeration cycle such that maximum refrigerating capacity can be educed when the refrigeration cycle is started, the driving torque of a variable displacement compressor can be reduced when an automotive vehicle performs standing start or acceleration, and the refrigeration cycle can be operated with the maximum efficiency in a steady operating condition.

Abstract: Disclosed are a defrosting apparatus of an air conditioner and a method thereof. The defrosting apparatus includes a temperature sensor for sensing a pipe temperature of an outdoor heat exchanger and an outdoor temperature; a comparator for comparing the sensed pipe temperature of the outdoor heat exchanger and the sensed outdoor temperature, and generating and outputting a comparison signal; and a valve controller for increasing an opening value of an LEV (Linear Expansion Valve) at a defrosting operation and decreasing the opening value of the LEV at a defrosting operation termination. The apparatus and the method can increase efficiency of the defrosting operation and reduce a period of time required for performing the defrosting operation by determining the defrosting operation based on a difference between a pipe temperature of an outdoor heat exchanger and an outdoor temperature and increasing an opening value of an LEV at the defrosting operation.

Abstract: Disclosed are compressor-controlling device and method for an air conditioner comprising a plurality of compressors. In case several compressors selected from the plural compressors are stopped for a long period of time according to cooling or heating load, the refrigerant contained in a higher-pressure state inside of the stopped compressors moves toward a refrigerant pipe of a lower-pressure inlet port, and oil used to operate the compressors leaks toward the inlet port, thus lowering the oil level within the stopped compressors. Since the stopped compressors are operated during a second designated time when stopped time of the stopped compressors exceeds a first designated time, the stopped compressors are protected from damage due to poor lubrication.

Abstract: Disclosed are compressor-controlling device and method for an air conditioner comprising a plurality of compressors. The compressor-controlling device comprises a movable timer for sensing a stopping time (t) of stopped compressors selected from the plural compressors according to a decrease of a cooling load, a comparison unit for determining whether the stopping time (t) sensed by the movable timer exceeds a designated time (T), and a control unit for re-operating the stopped compressors after a lapse of the designated time (T) when the cooling load is increased, in case the comparison unit judges that the stopping time (t) does not exceed the designated time (T). When the cooling load is increased, the stopped compressors for satisfying the decrease of a cooling load are re-operated after the lapse of the designated time. Therefore, the compressor-controlling device assures the reliability of its system.

Abstract: A first solenoid-operated, discharge-line control valve (26) is moved between open and closed positions to control fluid flow in the discharge fluid line (18) between the compressor (12) and the condenser (14). A second solenoid-operated, liquid-line control valve (28) is moved between open and closed positions to control fluid flow in the liquid fluid line (20) between the condenser (14) and the evaporator (16). A controller (36) closes one of the flow control valves (26, 28) a period of time before closing the other flow control valve (26, 28) and shuts down the compressor (12) sequentially with the flow control valves (26, 28).

Abstract: In an ejector cycle having an ejector for decompressing refrigerant, a check valve is disposed in an oil return passage through which refrigerant including a lubrication oil is introduced from a refrigerant outlet side of an evaporator to a refrigerant suction side of a compressor while bypassing the ejector. When the lubrication oil amount staying in the evaporator reduces, the check valve is automatically closed, and a normal operation mode of the ejector cycle is automatically set. On the contrary, when a large amount of lubrication oil stays in the evaporator, the check valve is automatically opened, and an oil return mode is automatically set. Therefore, the lubrication oil staying in the evaporator can be controlled equal to or lower than a predetermined amount, thereby effectively returning the lubrication oil to the compressor.

Abstract: A five element refrigeration system whereby heating and cooling functions of the system can be accomplished as in a reverse cycle system without needing to reverse the flow of the liquid through the system. The system comprises a refrigerant compressor, a pair of air side heat exchangers, an air blower to provide circulation for the air side heat exchangers, a pair of water side heat exchangers, and a reservoir to provide cooling water for the water side heat exchangers. The refrigerant compressor increases the pressure of a refrigerant flowing through it, causing it to circulate through the first air side heat exchanger, or a reheat coil. The refrigerant continues to the first water side heat exchanger, which acts as a condenser. In a cooling mode, the refrigerant continues to the second air side heat exchanger, which acts as an evaporator. In a heating mode, the refrigerant continues to the second water side heat exchanger, which acts as an evaporator.

Abstract: Disclosed are an air conditioning system with two compressors and a method for operating the same, so as to variably change a compression capacity of a refrigerant according to the variation of cooling load. Herein, when a full operation order is inputted to the two compressors in order to satisfy increased cooling load, the first compressor is first operated, and then the second compressor having a compression capacity of a refrigerant smaller than that of the first compressor is additionally operated, so that a current peak value for operating the compressors does not exceed an allowable current range of a circuit breaker installed in a home or building, thereby safely controlling the air conditioning system and simultaneously allowing the current to be provided to other electric appliances, thus improving users' convenience.

Abstract: A refrigerating device is equipped with a temperature sensor in the form of an infrared sensor (7), for detecting an operating temperature of the device. Said infrared sensor (7) is located on a board (5) in a non-refrigerated are of the refrigerating device, together with a control circuit.

Abstract: An air conditioning system for a vehicle including an integral valve block (32) having a liquid line bore (42) extending therethrough and a suction line bore (44) extending therethrough with a transverse by-pass passage (34). The by-pass check valve (38) of the first system of FIGS. 1 and 2 allows only one-way fluid flow through the by-pass passage (34) from the suction fluid line (22) to the liquid fluid line (20), whereas the by-pass check valve (40) of the second system of FIGS. 3 and 4 allows only one-way fluid flow through the by-pass passage (34) from the liquid fluid line (20) to the suction fluid line (22). Also integrated into the valve block (16) is a suction check valve (46) in the suction fluid line (22) for allowing one-way fluid flow from the evaporator (16) to the compressor (12).

Abstract: A method of controlling a multi-compartment type kimchi refrigerator having a plurality of evaporators which are mounted in respective storage compartments to refrigerate the storage compartments, a compressor which supplies the evaporators with refrigerant, and valves which are mounted in inlet sides of the evaporators, respectively, to be selectively opened and closed on the basis of temperatures of the storage compartments. The method includes selectively opening or closing the valves in priority order of operations of the valves in response to a signal to supply the refrigerant to two or more of the evaporators.

Abstract: In a motor vehicle with a combustion engine, an electronic engine-management device, and an air-conditioning system with an air-conditioning control device, the air-conditioning compressor has reciprocating pistons whose displacement stroke is adjustable through one or more control valves. The electronic engine-management device has direct access to and priority control over the adjustment of the piston stroke, so that the electronic engine management device takes precedence over the air-conditioning control device in controlling the adjustment of the piston stroke.

Abstract: In a vapor compression refrigerant cycle for an air conditioner, as a refrigerant pressure at an operation starting time of a compressor increases, a starting target rotational speed of the compressor is reduced, and the operation of the compressor is started by the reduced starting target rotational speed. Accordingly, when the operation of the compressor is started, it can prevent the pressure of high-pressure side refrigerant from exceeding an allowable pressure of the compressor, thereby preventing a safety device of the compressor from operating. Therefore, even when the operation of the compressor is started in a high load state, a pressure abnormality is not generated in the refrigerant cycle, and operation of the air conditioner can be prevented from being stopped.

Abstract: An air conditioning system for a vehicle includes a controller for periodically increasing the stroke and output of the pistons in a variable stroke compressor for periodically reducing the amount of refrigerant resident in the evaporator. The controller includes a timer for establishing predetermined time periods between the momentary spikes of periodic increases of stroke. Normally, the stroke is spiked only when the compressor is operating at a low load condition.

Abstract: An apparatus for creating a horizontal air curtain for a cooler doorway has at least one air moving device; at least one motor powering the air moving device; a control system including a sensor, the control system providing power to operate the motor when the sensor detects that the door of the cooler is open; and at least one air discharge nozzle mounted adjacent to the air moving device directing air emitted by the air moving device to create a curtain of air that flows generally horizontally across at least a portion of the doorway.

Abstract: A built-in refrigerator is disclosed, which includes a cabinet provided in a sink and having a door at a front side thereof and a component chamber at a rear bottom thereof; a molding provided on a floor located at a front bottom of the cabinet; a compressor provided in the component chamber; a cooling fan provided in the component chamber for blowing air to the compressor; a condenser condensing a flowing refrigerant by heat-exchange with the air blown from the cooling fan; and a ventilating passage connecting the component chamber to the outside of the molding for ventilating the component chamber. Also, the built-in refrigerator further includes a dividing strip for dividing the ventilating passage into an inflow passage through which the air is introduced, and an outflow passage through which the air is discharged, wherein the dividing strip is inclined at a predetermined angle &thgr; so as to form an inlet of the inflow passage larger than an outlet of the inflow passage.

Abstract: The present invention relates to the methods for hydrophilization, capable of greatly improving the surface wettability of wet surface heat exchangers by transforming the solid surface to an improved surface having hydrophilic porous structure.

Abstract: Device for supporting and handling containers of liquid ice cream mix in ice cream making machines of the type in which the liquid ice cream mix is contained in special disposable containers which, after having been connected to a feeder tube equipped with a perforating spike, are turned upside down and placed in a refrigerated chamber in the body of the machine. Said device comprises a basket of an essentially cage-like structure open at the front and provided at the bottom and top with supporting surfaces, the said cage-like structure pivoting in the centre of its flanks on the flanks of the chamber of the said machine.

Abstract: A high throughput, short batch cycle commercial ice making machine produces commercial ice which resists melting in convenient sizes for mobile food carts, market produce, or fish displays. The machine introduces super-cooled water, that is in a liquid state while exposed to a temperature below freezing, into a batch of pre-formed hollow molds of one or more horizontally oriented ice forming freezing trays oriented horizontally. Using vapor compression refrigeration, the machine produces a plurality of supercooled ice segments in pockets within the freezing tray. The supercooled ice segments are rapidly subjected to a short, temporary contact with a high heat source from a sleeve integral with the freezing tray compartments, along a peripheral bottom surface of the ice segment accommodating freezing tray molds. This temporarily melts a bottom surface of each ice segment, lubricating it and loosening it.

Abstract: A refrigerating cycle system of a vapor compression system has a constitution wherein a first compressor, a first radiator, an expansion mechanism, a heat absorber, and a second compressor connected sequentially and circularly. A CO2 refrigerant is circulated in the sequence of the first compressor→the first radiator→the expansion mechanism→the heat absorber→the second compressor→the first compressor. The rotating drive shaft of the second compressor is connected to the rotating output shaft of the expansion mechanism with a common shaft. Thereby, since the drive force of the second compressor is obtained from the power generated by the refrigerant expanding action of the expansion mechanism, the power of the first compressor consumed for elevating the pressure of the refrigerant to a predetermined pressure can be minimized.

Abstract: An air conditioning system for a vehicle includes an evaporator for evaporating the refrigerant and including a predetermined portion in which refrigerant pools. A device for directing the flow of air to the predetermined portion to minimize the pooling of refrigerant in the predetermined portion includes a spool and a sheet wound around the spool for winding and unwinding the sheet. The opening is disposed in the sheet for allowing airflow to said predetermined portion of the evaporator.

Abstract: An air conditioning system for a vehicle includes an accumulator/dehydrator (A/D) disposed in the suction fluid line for accumulating refrigerant and a heat transfer jacket surrounds the A/D for exchanging heat with the A/D and the refrigerant therein. The heat transfer jacket may define a space between an inner wall of the A/D and an outer wall spaced therefrom with a heat transfer media disposed in the space for cooling by extracting heat from the refrigerant in the A/D. Alternatively, the jacket is defined by a double walled sleeve surrounding the A/D and defining the space for the heat transfer media. Yet another alternative is for the heat transfer jacket to comprise a thermoelectric device.

Abstract: Natural gas liquefaction method wherein the natural gas is cooled, condensed and subcooled by indirect heat exchange with two cooling mixtures to a temperature such that the natural gas does not remain entirely liquid under pressure after expansion to the atmospheric pressure. The liquid natural gas under pressure is expanded to form a gas phase and a liquid phase. The gas phase can be either compressed and recycled to the process inlet, or used as a fuel. The liquid phase is expanded to form a gas phase and a liquid phase. The gas phase is compressed and recycled to the process inlet. The liquid phase constitutes the liquefied natural gas produced.

Abstract: A ring is provided and includes a first ring element; a second ring element; and a third ring element having an opening that receives the first and second ring elements therethrough such that the first and second ring elements pivot about the third ring element. In another aspect, each of the first, second, and third ring elements is rotatable relative to the others. In one exemplary embodiment, each of the first, second and third ring elements comprises a toroidal member.

Abstract: Glasses containing one or more rare-earth elements and one or more halides are disclosed including a region locally transformed into crystallized glass that comprises precipitated rare-earth element-containing halide crystals. Also disclosed are molded objects containing dispersed particles of glass containing one or more rare-earth elements and one or more halides and having a region within which the particles are transformed into crystallized glass particles. The crystallized region is invisible under usual light but can be detected using upconversion luminescence generated by irradiation with excitation laser light having a specific wavelength. Disclosed further are methods for preparing such locally crystallized glasses and molded objects, as well as methods for efficient detection of the crystallized region in such glasses or molded objects.

Abstract: An optical fiber manufacturing method and apparatus in which an optical fiber is drawn from an optical fiber preform, while rotating the optical fiber, to impart the optical fiber with twist. Specifically, with the optical fiber in contact with an arc concave surface of first swing guide roller under a predetermined force, a first swing guide roller is swung with the center of the arc concave surface to twist the optical fiber. In this arrangement, the variation range of the path of the optical fiber can be reduced, making it possible to stabilize the pressure of the swing guide roller against the optical fiber. Accordingly, the frictional force developed across the swing guide roller and the optical fiber can be kept constant to make slippage less likely, making it possible to efficiently twist the optical fiber always at a predetermined rotatory force.

Abstract: A brassiere having a terry loop stitch construction knitted into desired portions of the brassiere, preferably within at least the breast cups of the brassiere, is provided. The terry loop may be a true sinker produced terry loop or mock terry loop. The brassiere may be a single-layer brassiere or a double-layer brassiere. A blank for manufacturing the brassiere and method of manufacturing the brassiere is also provided.

Abstract: Multilayer sleeves for insulating or protecting elongated substrates are disclosed. The sleeves are continuously knitted in different sections integrally joined end to end, the sections being formed of different filamentary members chosen for desired characteristics. The sleeves are formed into the multilayer configuration by reverse folding the sleeves inwardly to place one section coaxially within another. Sleeve ends may be finished with welts to prevent raveling and serve as a clinch on the elongated substrates. Rib knits are used to form insulating air pockets lengthwise along the sleeves to augment the insulating effectiveness.

Abstract: The object of the present invention lies on providing a washing machine with a device for connection to an outside required for connecting to wire/wireless communication and Internet technologies. The washing machine includes a controller fitted to a body for washing control, and a device fitted at one side of the body for exchange washing related data between the controller and an external device.

Abstract: An activation restricting apparatus for an engine starting system that may be produced with a compact size. The apparatus includes an operating mechanism, an actuator, and a control unit. The operating mechanism starts and stops the engine and has a plurality of positions including a LOCK position. The operating mechanism includes a first stopper prohibiting movement of the operating mechanism from the LOCK position and a second stopper prohibiting movement of the operating mechanism to the LOCK position. The control unit enables the engine to be started when the operating mechanism is in the LOCK position and a first ID code sent from a portable device matches a second ID code. The control unit enables the operating mechanism to be moved to the LOCK position when the operating mechanism is not in the LOCK position and the vehicle is not moving.

Abstract: A clutch assembly for coupling a first spindle to a second spindle. The clutch assembly has a first disc connectable to the first spindle. A first finger is operatively coupled to the first disc and pivotable between a first engaged position and a first disengaged position. The first finger opposes rotation of the first disc in a first direction when the first finger is in the first engaged position. A second disc is connectable to the second spindle. The second disc pivots the first finger from the first engaged position to the first disengaged position when the second disc is rotated in the first direction through a first range of angular positions and rotates the first disk in the first direction when the second disc is rotated beyond the first range of angular positions.

Abstract: The rotary locking cylinder comprises a housing (5) and at least one rotor (8) provided with a key channel (27). Tumblers are provided to rotationally release the armature (8) with a key (17) associated therewith. A driver (6) is provided with at least one extension element (3) on the active part (2) of the rotary cylinder. Said extension element comprises a housing (24) and a rotatable insert (9). At least one extension element (3) is arranged on an outer side on the active part (2) at a distance from the driver (6). The key shank is extended in a manner which corresponds substantially to the length (A) of the extension element (3). Preferably, the rotatable insert (9) of the extension element (3) is profiled.

Abstract: According to the preferred embodiments of the present invention, an apparatus and method for retaining keys is disclosed. The present invention provides a tensioning mechanism within the body of the key-retaining apparatus for “pinching” the shaft of a key when the shaft is inserted into the body of the key-retaining apparatus. The tensioning mechanism may take the form of a spring-loaded mechanism or a tensioned piece of metal that is selectively pressured against the shaft of the key when the key is inserted into the body of the key-retaining apparatus. Additionally, a thong or strap may be provided for securing the key-retaining apparatus to a purse, backpack, etc.

Abstract: A method for making controlled-release ammonium phosphate fertilizer has the following acts of: cracking, pulverizing, blending, aging, drying, and adding release-controlling materials into an ammonium phosphate slurry during preparing processes or adding release-controlling materials in achieved ammonium phosphate powder. Selectively, sulfuric acid is added into the mixture of the release-controlling materials and the ammonium phosphate slurry or ammonium phosphate powder to acidify the mixture. In this method, the release-controlling material combines with the ammonium phosphate by chemical bonding to controll the release of nitrogen and phosphorus nutrients to enhance the use efficiency and elongate fertilization effect of the controlled-release ammonium phosphate fertilizer.

Abstract: The eccentricity of a hollow billet is measured at the outlet of an inclined-roll rolling mill by launching an ultrasonic pulse into the billet from a laser of a measuring device and measuring the transit time of an echo pulse also utilizing a laser and an optical analyzer. The measuring device is moved, during travel of the hollow billet along a path from the rolling mill linearly into the direction of travel or angularly around the hollow billet to eliminate the effect of the internal helical formation of the eccentricity on the measurements. The wall thickness measurements are evaluated by a computer and subjected to Fourier analysis.

Abstract: A method for impressing holographic images or holograms in the surface of sporting and fitness products such as ball bats and bicycle frames. The surfaces of metal shims and print rolls bearing holograms are hardened as by coating them with thin amorphous diamond coatings or diamond like coatings so the holograms can be embossed into many thousands of metal objects with clarity and consistency.

Abstract: A method of manufacturing a high-strength austenitic stainless bolt having a tensile strength of 1100 MPa or more on an industrial mass-production basis. The method of manufacturing a high-strength stainless steel bolt according to the present invention comprises the steps offorming a lubricant coating on the surface of an austenitic stainless steel wire material to obtain a lubricated wire material; cold forming the lubricated wire material within a degree-of-working range of from 0.5 to 1.5 as defined in a natural logarithmic value of the working distortion such that a head portion is bulged as a result of axial compression of the cold formed wire material and a threaded portion formed of part of the bolt material extruded under said axial compression and radially compressed; and then subjecting said threaded portion to form rolling, said lubricant coating being free from exfoliation and destruction at said degree of working range.

Abstract: A method and apparatus utilizing a radial rolling process to cold form rings on a lead battery terminal with undercuts or overhangs to improve the sealing properties of the rings. The apparatus includes a fixture configured to securely position the battery terminal beneath a rolling station. The rolling station includes a radial rolling spindle having a plurality of cam shaped rollers configured to transform at least one ring on the battery terminal from having an initial rectangular cross-sectional shape into a desired arrowhead cross-sectional shape when the terminal and cold metal forming member are rotated relative to each other. A drive assembly is configured to rotate the battery terminal and radial rolling head relative to each other.

Abstract: A rotary apparatus having a first rotating die assembly and a second rotating die assembly arranged in juxtaposition with one another on respective first and second sides of a strip work piece movement path, and operable in unison together to perform operations on a work piece passing therebetween, each die assembly having a main rotor mounted for rotation, at least one die support body supported by the main rotor, and being swingable relative to the main rotor, control cams connected the die support body, cam guides engageable by the control cams, and die support body bearings mounted on the main rotor for carrying the die support body. The die support body can be self-adjusting to the linear speed on the work piece, before and after contact. The die can have a movable portion which moves in or out to provide selective operation on the workpiece. The main rotors are connected by a gear drive train with anti-backlash adjustment.

Abstract: A metal stock bending device comprises a main body arranged to be secured to a suitable support structure and a handle assembly mounted to the main body on a shaft having a substantially vertical axis arranged such that the handle rotates on the shaft about the axis. The body is arranged to support an interchangeable die on the shaft. The handle is arranged to support an interchangeable shaper die having an axis parallel to the shaft axis positioned on the handle such that the shaper die is arranged to follow a path of a circle about the shaft axis. A block assembly arranged to support a metal stock to the die. Movement of the shaper die about the die on the shaft engages the metal stock supported by the block assembly such that the rotation of the handle forces the stock to take the shape of the die.

Abstract: Device to absorb the axial loads generated on the rolls in a rolling stand (11) having a pair of working rolls (12a, 12b), a corresponding pair of back-up rolls (15a, 15b) and at least an intermediate roll (14) located between a working roll (12a) and a corresponding back-up roll (15a), in said device holding means (16, 40, 41) are provided to support the axial loads on the back-up rolls (15a, 15b) and/or the working rolls (12a, 12b) caused by the crossing of said at least one intermediate roll (14), so that the axial loads are discharged onto elements with very low rolling friction, totally or almost totally annulling the hysteresis relating to the vertical movements of the back-up rolls (15a, 15b) and working rolls (12a, 12b) and the relative chocks (26).

Abstract: The invention relates to a roll stand comprising a crown-variable-control (CVC) roll pair, preferably a CVC working roll pair and a back-up roll pair, which comprise a contact area (bcont) in which a horizontally active torque (M) acts that leads to a twisting of the rolls and thus to axial forces in the roll bearings. In order to keep the axial forces in the roll bearings as small as possible, the torque (M) is minimized by an appropriate CVC grinding.