Abstract: A hydromechanical control system for a variable delivery, positive displacement fuel pump includes a variable area orifice metering window through which fuel from the pump outlet passes on its way to a gas turbine aircraft engine. The fuel pressures on either side of the fuel metering window are ported to corresponding sides of a spool of a pump control valve. The position of the valve spool controls the fuel flow to either side of a pump control actuator, whose movement varies the displacement of the pump. A bypass fuel flow upstream of the fuel metering valve is also ported to the pump control valve. During steady-state pump operation, a relatively small and constant value of fuel flow is bypassed through the pump control valve and back to the pump inlet. However, upon increasing or decreasing pump speed transients, the bypass fuel flow is increased or decreased in a proportional amount. In this way, improved control of the pump during transient conditions is achieved.

Abstract: A hybrid rocket system and motor includes an oxidant tank communicating with a combustion chamber containing a solid fuel grain. The passage from the oxidant tank to the combustion chamber is obstructed by a fill tube which fills the oxidant tank with oxidant and pressurizes it. Once the tank is full, the fill tube is displaced from the tank-chamber passage to deliver oxidant to the grain and initiate the combustion process. The motor may be an integral part of the rocket, or it may be a modular, expendable or exchangeable cartridge-type device inserted into a reusable body.

Abstract: A method for monitoring the starting behavior of a catalytic conversion system by placing an apparatus in the exhaust-gas pipe of an internal combustion engine. The conversion power of the starting region can be determined from the temperature which results when an air/fuel mixture is fed to the catalytic conversion system.

Abstract: Reduction of NO.sub.x from diesel engine exhaust by use of plasma-regenerated absorbent beds. This involves a process for the reduction of NO.sub.x and particulates from diesel engines by first absorbing NO.sub.x onto a solid absorbent bed that simultaneously acts as a physical trap for the particulate matter, and second regenerating said solid absorbent by pulsed plasma decomposition of absorbed NO.sub.x followed by air oxidation of trapped particulate matter. The absorbent bed may utilize all metal oxides, but the capacity and the kinetics of absorption and desorption vary between different materials, and thus the composition of the absorbent bed is preferably a material which enables the combination of NO.sub.x absorption capability with catalytic activity for oxidation of hydrocarbons. Thus, naturally occurring or synthetically prepared materials may be utilized, particularly those having NO.sub.x absorption properties up to temperatures around 400.degree. C.

Abstract: The efficiency of a catalyser is evaluated starting from output signals of two lambda probes disposed upstream and downstream respectively of the catalyser. In particular, a signal obtained by calculating the difference between the time averages obtained by integration and subsequent division for the duration of an integration window of output signals of these probes is used as the signal indicative of efficiency.

Abstract: An exhaust purification device of an engine providing a NO.sub.x absorbent arranged in the exhaust passage. An O.sub.2 sensor generating a current proportional to the air-fuel ratio is arranged in the engine exhaust passage downstream of the NO.sub.x absorbent. The amount of NO.sub.x actually absorbed in the NO.sub.x absorbent at the time of release of the NO.sub.x is calculated on the basis of the output signal of this O.sub.2 sensor. On the basis of this calculated amount of NO.sub.x, correction is made so that the estimated amount of NO.sub.x represents the actual amount of absorption of NO.sub.x. When this corrected estimated amount of NO.sub.x reaches a set value, the action of releasing the NO.sub.x from the NO.sub.x absorbent is carried out.

Abstract: A hydraulic power booster for a brake apply system includes a mechanically actuated hydraulic booster of compact design that can be integrated in line with a conventional type master cylinder. Additionally, a combination of twin mechanically actuated check valves is arranged to provide a structure with essentially no leakage when the hydraulic booster is at rest and when the hydraulic booster is at poise. A mechanically actuated check valve is normally held open and is positioned in a passageway between the power piston and a fluid reservoir. This check valve is substantially, immediately closed upon the application of force to the brake pedal. Another mechanically actuated check valve is provided in a passageway between the hydraulic power supply and the power piston. This check valve is mechanically opened to supply a selected amount of pressurized fluid to the power piston which generates a selected amount of vehicle braking in response to actuation of the brake pedal.

Abstract: A hydraulic master cylinder having a cylinder body (1) with a piston (3) slidable therein. The piston carries a sealing assembly (20) to permit pressurization of a pressure chamber (6) and fluid recuperation upon retraction of the piston. The sealing assembly includes a first seal (23) of relatively hard material slidable against the internal cylinder wall and a relatively resilient second seal (25) arranged to act between the sealing surfaces of the piston and the first seal to provide a fluid tight pressure seal during pressurization of the chamber.

Abstract: A combined-cycle power generation system using waste matter as a fuel, which can be expected to improve in power generation efficiency without using an additional fuel. The system has a corrosive exhaust gas source (waste exhaust gas source) (1), a closed-cycle gas turbine (2), and a Kalina-cycle steam turbine (3). A ceramic heat exchanger (6) for the closed-cycle gas turbine (2) is disposed on a high-temperature side of the corrosive exhaust gas source (1). A heat exchanger (7) heats a mixed ammonia water fluid (11) for the Kalina-cycle steam turbine (3) by a high-temperature side exhaust gas from the closed-cycle gas turbine. A heat exchanger (9) evaporates a condensate of the mixed ammonia-water fluid (11) by heat remaining in the exhaust gas from the closed-cycle gas turbine. A heat exchanger (10) for the Kalina-cycle steam turbine is disposed on a low-temperature side of the corrosive exhaust gas source (1) to evaporate the mixed ammonia-water fluid (11) by heat remaining in the waste exhaust gas.

Abstract: A heating and cooling machine, operating according to a regenerative gas cycle process with a working medium, has a pressure-tight housing and a heat source connected inside the housing. Two linearly moveable pistons are positioned inside the housing. The two pistons delimit therebetween a warm working volume and are driveable by a control unit. The first piston together with the housing delimits a hot working volume loaded with heat from the heat source. The second piston together with the housing delimits a cold working volume. Regenerators as well as a warm heat transfer element and a cold heat transfer element are positioned in the housing. The three working volumes communicate with one another through the regenerators and the warm and cold heat transfer elements. A partition for transmitting heat energy generated by the heat source to the hot working volume, has the shape of a radially symmetrical dome and is connected to the housing so as to be heat-insulated relative to the housing.

Abstract: A thermoelectric converter is composed of a number of p-type semiconductor chips and n-type semiconductor chips arranged side by side and electrically connected in series, a heat-absorbing-side heat conductor arranged on a heat-absorbing side of the p-type and n-type semiconductor chips, a heat-dissipating-side heat conductor arranged on a heat-dissipating side of the p-type and n-type semiconductor chips, and a device for feeding a current to the p-type and n-type semiconductor chips. The current feeding device feeds a current of a density in a current density range selected depending on a thickness of said p-type and n-type semiconductor chips.

Abstract: In the method and apparatus for transporting/storing chilled goods at a low temperature: a supply area of a liquefied gas such as liquid carbon dioxide, liquefied nitrogen and the like is provided in an upper portion of a hermetically-sealed space; and, the liquefied gas is supplied to the supply area to rapidly chill the interior of the space, whereby such interior is kept thereafter at the substantially same temperature as that of a surface of the chilled goods. The supply area has its bottom and/or side surface constructed of a gas-permeable material such as perforated panels, mesh members, net members and like materials, or of a gas-impermeable thin material such as aluminum foil, synthetic resin sheet or thin panels, metal sheet, non-woven fabrics and like materials.

Abstract: A method for cryopreservation of biological samples. A cryogenic liquid such as liquid nitrogen is turned into a slush within a container such as a standard cryogenic storage vial by applying suction to create a partial vacuum above the liquid. The sample to be cooled is dropped into the slush and is subsequently stored in the container within which it was cooled.

Abstract: A double layer cooler for particulate material has a conveyor to which separate streams of such material are delivered at spaced intervals to form lower and upper layers of material on the conveyor. As the layers move toward the discharge end of the conveyor a coolant passes upwardly through the layers. At the discharge end of the conveyor the material of the lower layer is discharged, whereas the material of the upper layer passes over a stationary quantity of material to a crusher in which the upper layer material is crushed. From the crusher material is returned to that stream which forms the lower layer on the conveyor. The lower layer of material thus is precooled and comminuted.

Abstract: A device and method for freezing or cooling of food or other items using cryogenic and low temperature coolants is provided. The device includes a coolant container which contains the cryogenic or low temperature coolant. The device will also include a freezing compartment with a lower surface which is immediately adjacent to the coolant container. The coolant container includes a valve for controlling the pressure within the coolant container, and thereby control the temperature of the coolant. When the materials to be cooled are placed in the freezing compartment the coolant will absorb heat from the materials via the lower surface and some of the coolant will vaporize. In a preferred embodiment the device includes a system for collecting the vapors thus created.

Abstract: A refrigerant evaporator has a first heat exchange portion with an uninterrupted surface formed from sheets of conductive material joined together to form passages therebetween. A second heat exchange portion is connected to and adjacent the first portion. The second portion is formed from hollow, serpentine tubes with spine fins. Condensed refrigerant passes through the first portion, which accummulates frost and ice, and then through the second portion. The first portion also includes a labyrinth of passages that define an accumulator for refrigerant that has passed through the second heat exchange portion.

Abstract: A microwave thermal heat pump defroster system, utilizing a magnetron tube, or other microwave energy generating device, for the application of heat to the external surfaces of the outside coil of an electric heat pump, while the heat pump is operating in the heating mode for the following purposes, (1) to defrost the outside coil of the heat pump, (2) to inhibit the accumulation of frost on the external surfaces of the outside coil of the heat pump, and (3) to allow heat so applied to the external surfaces of the outside coil of the heat pump to be absorbed into the heat pump system via the outside coil of the heat pump, in a manner that will improve the efficiency of the heat pump.

Abstract: A compact no moving part refrigeration unit powered with a flame driven generator is contained along with a propane cylinder and necessary controls in a cylindrical upright unit with an expanded base; the unit is sized to make four to eight pounds of ice in about a four hour period.

Abstract: A refrigerant charging system comprising a hollow manifold having a first end and a second end and a central region therebetween; a suction port adjacent to the first end with a first line couplable to the suction side of a compressor of an air conditioner; a suction valve adjacent to the suction port and positionable between a closed orientation and an open orientation; a low pressure gage adjacent to the suction port; a discharge port adjacent to the second end with a second line couplable to the compressor of an air conditioner; a discharge valve adjacent to the discharge port and positionable between a closed orientation and an open orientation; a high pressure gage adjacent to the discharge port; a refrigerant port with a third line for coupling the central region of the manifold and to a refurbishing tank; a vacuum port with a fourth line located between the refrigerant port and the first end for coupling the manifold and a vacuum pump.

Abstract: A refrigeration system having a modulatable compressor and a Rankine cycle refrigeration circuit having at least two evaporators. The flow rate of the compressor is modulated in response to the sensed temperature of the masses being cooled, and the control circuit switches valves to control the refrigerant flow path and modulates the flow rate of the compressor to optimize the efficiency of the refrigeration system.

Abstract: A refrigerator controller employs a non-azeotropic mixture refrigerant and a compressor, a four-way valve, an outdoor hear exchanger, a fractionator, an overhead condenser provided on the top of the fractionator, a first flow control valve, a throttle, and an indoor heat exchanger which are connected in the form of a ring. The controller further employs a circuit at a lower part of the fractionator returning to the bottom of the fractionator through a second flow control valve and a reheater, and a circuit returning from the overhead condenser to the top of the fractionator, thereby controlling the openings of the first and second flow control valves by the output signal of indoor and outdoor heat exchanger temperature detectors, an indoor temperature detector, and an indoor temperature setting device through a flow controller. In this manner, a wider control range of refrigerating capability can be realized.

Abstract: An air conditioned seat including an air conditioning pad comprising an upper pad and a lower pad. The air conditioning pad has an upper layer, a lower layer and a hollow chamber therebetween. The upper layer has a plurality of apertures therethrough leading into the hollow chamber. A coupling tube is included with a first end coupled with an existing air conditioner of an automobile. The coupling tube has a second end portion couplable to the tube of the air conditioning pad.

Abstract: An arrangement for reducing the humidity content of a gaseous medium, in particular air, has a cooling circuit. In order to increase its efficiency, an arrangement of this type is linked to a cooling system (10) known per se and has an evaporator (11) designed as a hollow body (16). The evaporator (11) has a pipe coil (17) through which a coolant, for example freon, can flow and a series of parallel ribs (18), preferably perpendicularly to the pipe coil (17), between which the gaseous medium is led in a first direction as a gas stream. The hollow body (16) is enclosed in an outer housing (12) forming an intermediate space (20) in which the gas stream is led in a second direction opposite to the first.

Abstract: A condensate pan is adapted for use in either a left or right horizontal fan coil installation, and includes left and right mirror image sides interconnected with a central section having on its lower surface a riser near one end, and each of the halves having a drainage opening on the other end, such that when thee evaporator coil is placed in the condensate pan, the pan is tipped about the riser to lower one side and raise the other, depending on whether its a left or right horizontal installation, such that drainage occurs from the lower side drainage opening. The drainage opening is so located with respect to the floor of the pan that, when a drain pipe is threadably connected thereto, its lower inner surface is disposed vertically below the pan floor to thereby enhance its drainage characteristics.

Abstract: An evaporative air cooler (10) employs a design in which admitted air flows over and along the surface of a wicking material (14) rather than through the wicking material (14) and, in the process, achieves a greater relative cooling ability thereby. The evaporative air cooler (10) has the primary components of a cooling chamber (12), the wicking material (14), a fan assembly (16), and, in the preferred embodiment, a feedback duct (18). The cooling chamber (12) includes a container portion (20) having an air outlet (40) in one end wall (36) thereof, and a cover portion (22) having an air inlet (44). The wicking material (14), which is towel-like in form, is draped upon the interior surfaces (56, 60, 62) of the container portion (20), with an opening (64) in the wicking material (14) cut so as to correspond to the location of the air outlet (40) and to allow an unimpeded passage of air therethrough.

Abstract: A water filter assembly mounted to an inner surface of a refrigerator and accessible from within a refrigeration compartment of the refrigerator. The filter assembly includes a first housing part, a second housing part, and a replaceable filter cartridge. The first and second housing parts cooperate to define a fluid-tight chamber for receipt of the filter cartridge. The first housing part includes an inlet port through which unfiltered water may be introduced into the chamber and an outlet port through which filtered water may exit the chamber. The second housing part surrounds a portion of the first housing part and provides a volume sufficient to hold the filter cartridge and any water within the chamber when the second housing part is released from the first housing part to replace the filter cartridge, and thereby prevents or minimizes spillage of water from the filter assembly during filter cartridge replacement.

Abstract: A round post-mix beverage dispenser includes a cylindrical carbonator, still water conduits for supplying water to be carbonated, and carbonated water output coils in the form of circular courses of tubing which surround the carbonator tank in a surrounding water bath. Syrup conduits are coiled in circular courses within the water bath. The round or cylindrical shape of the dispenser housing is adaptable to many different looks such as cans, bottles, glasses and cups. Preferably the basic cylindrical housing shape is made to look like a can of a beverage. Decorative sleeves which define or simulate the appearance of other types of containers such as bottles, cups and glasses can be easily added to the basic cylindrical housing, as desired, to provide different attractive appearances to promote sales.

Abstract: A method and apparatus for providing conditioned air to an aircraft parked at an airport. The air conditioning unit is able to accommodate various aircraft sizes. The unit uses two blowers to allow an increase in variation in the volume of air supplied without changing the static pressure of the air supplied. The unit also uses dampers to accommodate aircraft with one and two air hose connections.

Abstract: A refrigeration system comprises a mixing tank for a slurry of solid particles in a liquid, said mixing tank having first and second inlets and an outlet. A sublimator has a bottom inlet, a top outlet and several internal paths connecting the inlet and the outlet, said internal paths having no descending parts. A first conduit connects the outlet of the mixing tank to the bottom inlet of the sublimator via a pump, there being no descending parts between the pump and the inlet of the sublimator. A separator has an inlet and top and bottom outlets. A second conduit connects the outlet of the sublimator to the inlet of the separator, the bottom outlet of the separator being connected to the first inlet of the mixing tank. A compressor has an inlet and an outlet, and conduits connect the top outlet of the mixing tank to the inlet of the compressor and the outlet of the compressor to the second inlet of the mixing tank.

Abstract: A refrigerator has fresh food and freezer compartments, and each of the fresh food and freezer compartments has upper and lower portions. A first air duct extends from the upper portion of the freezer compartment to the upper portion of the fresh food compartment, and a second air duct extends between the lower portion of the freezer compartment and the lower portion of the fresh food compartment. A first fan is arranged to draw first air through the first air duct from the upper portion of the freezer compartment and to discharge the first air into the upper portion of the fresh food compartment. A second fan is arranged to draw second air from the lower portion of freezer compartment and to discharge the second air into the upper portion of the freezer compartment.

Abstract: A refrigeration system including a flow control expansion valve. A valve body defines a valve inlet for accepting refrigerant and a valve outlet for delivering refrigerant that has passed through the valve body. A metering head defines first and second passageways for fluid passing through the valve body. A cylindrical sleeve is mounted for controlled movement within the valve body and including a center passageway which in combination with the first and second passageways conveys fluid through the valve body to the valve outlet. A spring urges the sleeve in a direction relative the metering head to maintain both the first and second passageways in fluid communication with the center passageway of the sleeve.

Abstract: An evaporator/expansion valve unit for use in an automotive air conditioning system, comprises an evaporator which includes first and second parallely extending elongate tanks and a plurality of flat hollow elements mounted on the first and second elongate tanks. The interior of each element is in a fluid communication with the interior of each tank. The first tank is formed with inlet and outlet openings. A block type expansion valve has a first passage which is closed when a spherical valve body abuts against a given part of the first passage against a certain force applied thereto and a second passage which has a temperature sensing means by which the certain force is varied in accordance with the temperature of a refrigerant flowing in the second passage. The first passage has an outlet opening connected to the inlet opening of the first tank. The second passage has an inlet opening connected to the outlet opening of the first tank. The expansion valve has the first tank directly mounted thereon.

Abstract: Cooled and purified air is introduced into a higher pressure rectification column and separated into oxygen-enriched liquid and nitrogen vapour. A stream of the oxygen-enriched liquid is flashed through a pressure reducing valve to form a mixture of liquid further enriched in oxygen and vapour depleted of oxygen. The liquid is reboiled by reboiler. A stream of the further enriched liquid is reboiled in condenser and is introduced into a lower pressure rectification column for separation into oxygen and nitrogen products. Reflux for the columns and is formed by condensing in condenser nitrogen vapour separated in the higher pressure rectification column. A reboiler provides an upward flow of vapour through the column. The condenser and reboiler take the form of a single heat exchanger. The reboiler is located in a phase separator, the reboiler is located in a rectification column containing liquid-vapour contact devices above the level at which fluid issuing from the valve is introduced.

Abstract: A pile composite with specific appearnace comprising a pile fabric obtained by sliver knitting process, the pile fabric including a ground fabric, substantially straight piles and cone shape piles, both of the piles being developed on a surface of the ground fabric, wherein the cone shape piles are scattered all over the ground fabric and a total area of the cone shape piles at middle portions of the cone shape piles is from 0.5 to 15% of an area of the ground fabric. The pile composite has a specific appearance in which a large number of cone shape piles are developed on the surface of the pile fabric. The method for preparing the pile composite is also disclosed.

Abstract: A washing machine is disclosed which is equipped with a washing tub having a plurality of cylindrical side walls. The washing machine has a pulsator reception part, a washing tub body and a plurality of annular flat bases. The pulsator reception part has an opening in the bottom center portion thereof and rotatably receives the pulsator. The washing tub body is formed on the pulsator reception part and has a plurality of cylindrical side walls which are progressively reduced in diameters from the lower portion to the upper portion thereof. The plurality of annular flat bases each have a plurality of holes and connect the lower end of one of the plurality of cylindrical side walls with the upper end of another one of the plurality of cylindrical side walls.

Abstract: By forming a plurality of false void zones in a lock housing in association with the tumbler release channel, a combination lock construction is attained which virtually eliminates the ability of trained individuals to gain unwanted access to the lock. Preferably, the combination lock housing also incorporates a plurality of non-releasing open or void zones or slots formed in association with the lock release groove for each rotatable tumbler sleeve. In this way, the desired false click is provided for each rotatable dial in order to thwart unwanted opening of the combination lock of this invention. Furthermore, the lock construction of the present invention is constructed with the interior chambers thereof virtually sealed from ambient surroundings, thereby preventing unwanted contamination from entering the interior of the lock and the rotating components thereof. In this way, degradation by contamination is virtually eliminated.

Abstract: A brake pedal immobilizing device has first and second shafts with crossheads mounted thereon for relative longitudinal sliding movement to clamp a brake pedal shaft between them. The second shaft carries a stand-off formed by a floor engaging foot extending longitudinally aligned below the crossheads, supporting the device on the vehicle floor during clamping adjustment. The second crosshead is formed with a hook and is rotatively mounted on one end of the first shaft while the other crosshead is mounted on the first shaft in a screw fit. An upper end of the first shaft is received in a sleeve with a shaft locking mechanism and terminates in a handle. A third crosshead carries a third shaft slidingly received in the first crosshead and having a lower end forming a locking/wedging pin for receipt in a bore in the second crosshead in the clamping position to complete enclosure of the brake pedal shaft. A barrier frame is attached to the first crosshead above a brake pedal to block forcing tool access.

Abstract: The portable wheel immobilizing device is comprised of two parallel covers which are attached together to angularly rotate in opposite directions about an axis perpendicular to both covers. A pair of parallel arms is attached to each cover. The arm pairs intersect at the aforesaid axis and each arm pair rotates with its cover around the aforesaid axis between a position in which all the arms are parallel to each other to a position in which the arm pairs are angularly disposed to be substantially perpendicular to each other but in which the arms in a pair remain parallel. The arms in a pair are movable in opposite directions between a length in which their combined span is at a minimum to allow compact storage of the device to a length in which their combined span is at a maximum to allow the arms to engage the outside periphery of the wheel to allow the arms to surround the wheel.

Abstract: A bolt actuator is supported within a vehicle to move a dead bolt between a withdrawn or open position and an extending or locked position in response to an applied switch condition. A lock plate defining a center bore and a guide defining a similar center bore are supported in alignment between a movable vehicle door and a fixed or stationary portion of the vehicle chassis or body. The bolt actuator slides the bolt through the guide and lock plate to provide a dead bolt lock which is independent of the vehicle lock system. Embodiments are shown utilizing an electromagnetic solenoid bolt moving mechanism and a cam driven bolt moving mechanism having an electric motor drive coupled thereto.

Abstract: A door latch has a control lever operable between an unlocked position permitting normal unlatching of the latch and a locking position preventing unlatching of the latch. A locking lever is pivoted on a housing and operably connected with the lock control lever so that pivoting of the locking lever will operate the lock control lever. The locking lever has a slot receiving a pin carried by a pin control link. An inside lever is pivoted on the housing and operably connected with the inside locking button so that operation of the inside locking button pivots the inside lever. The inside lever has an L-shaped slot, which overlies an elongate slot of the locking lever. A drive pin carried by a control link is captured within the slots. The control link is mounted on a rack which is motor operated.

Abstract: A lock assembly comprising a casing, a lever rotatably attached to the casing, the lever having a spindle attached thereto, a motor secured to the casing, the motor having a shaft, a substantially cylindrical member attached to the motor shaft and having a helically extending groove, and an interfering member threadedly and non-rotatably engaged with the helically extending groove of the cylindrical member. The interfering member moves between a locked position and an unlocked position. The interfering member moves into the locked position to prevent rotation of the lever when the motor shaft rotates in one direction. The interfering member moves into the unlocked position to allow rotation of the lever when the motor shaft rotates in an opposite direction.

Abstract: A safe locking mechanism has an engagement element movable from a disengaged position to an engageable position in response to a small amount of electrical power. When in its engageable position a mechanical linkage assembly is driven by the engagement element to unlock a lock-bolt. The mechanical linkage assembly includes a low inertia pivoting cam which interacts with a lock lever of the locking mechanism to move it to an unlocking state. Electrical power is generated solely while the user manually inputs a combination code, and a microprocessor controls storage and delivery of this power to put the engagement element into its engageable position. Once the desired engagement is obtained, the lock-bolt is moved from its locking to its unlocking position manually. Subsequent unlocking requires another entry of the code input.

Abstract: A cylinder lock and key combination, where the key (20) has an undercut profile groove (24) at one side surface (22) thereof and, in the key slot (13), the lock key plug has a corresponding profile tongue (15) with a downwardly projecting end portion (15a), which fills up the undercut portion (29) of the key profile groove (24) upon insertion of the key into the lock.

Abstract: Apparatus for mechanically and hydroform reconfigurating an elongated tubular workpiece in an elongated cavity between upper and lower tool subassemblies each composed of a plurality of independent tool segments movable axially, relative to the cavity axis, together or spaced from each other, and independently movable transversely of the cavity, usually vertically, in sequence, to grip the end portions of the workpiece while its ends are flared with tapered mandrels, and after the workpiece is filled with liquid, offset deform one workpiece portion while the tool segments are spaced apart and with axial infeed of workpiece material, then offset deform another portion with further axial infeed of workpiece material. Hydroforming pressure is then applied to partially expand the workpiece. Then after withdrawing segment spacing stops, forcing the tool segments together, and totally closing the tool, a greater hydroforming pressure is applied in the workpiece to expand it to the specific cavity configuration.

Abstract: A device for automatically positioning a roll stand with grooved rolls and rest bars and roll fittings arranged in front of the roll stand relative to roll center includes a stationary guide frame for receiving the supports of the roll fitting. The roll stand is mounted on the guide frame so as to be displaceable relative to this support and so as to be fastenable relative to the support. The supports of the roll fittings are hinged to the guide frame so as to be pivotable about an axis extending parallel to the roll axes and transversely to the rolling direction.

Abstract: Flanges are forming simultaneously around multiple holes in a sheet metal part with a press in which multiple sets of tooling are mounted on a pair of plates fastened to the top and bottom platens of the press. The plates have guides for ensuring that the plates, and the tooling on the plates, are aligned when the plates are brought together by closing the press. The tooling includes dies attached to die holders on the upper plate, and punches attached to punch holders on the lower plate using attachments that permit a small lateral movement of the dies and the punches on their holders so that the punches can self-align with the holes in the part when the part is fit onto the punches, and so that the dies can self-align with the punches when the press closes.

Abstract: A new Portable Sheet Metal Brake System for facilitating bending of metal, more particularly sheet metal, at various angles up to ninety degrees in a simple, controlled, and accurate procedure while compact enough to be transported to remote working locations. The inventive device includes a side support member, a flat base member secured orthogonally to the lower portion of the side support member, a flat anvil member movably secured to the side support member, a retaining means secured to the side support member and the flat anvil member, and a bending means rotatably secured to one end of the flat base member for bending metal.

Abstract: A hose crimping apparatus for permanently attaching sleeve fittings onto a hose, the apparatus having a rotating annular cam ring mounted about an opening in a base member with a number of arcuate cam surfaces on its inner surface, the cam surfaces forcing crimping dies radially inward along linear die pathways formed by wedge-shaped die guide members mounted on the base member when the cam ring is rotated.

Abstract: In forging hammers, according to the present invention, more than one inlet valve is employed and more than one exhaust may be employed. The force of impact for a particular blow is controlled by the number of valves employed and the timing of the opening and closing of those valves relative to one another. By making successive adjustments with different combination of valves, the controls may be calibrated so that the same ram force may be repeated. Knowing the valve settings required to produce differing amounts of force, it is possible to program the settings into the memory of a computer, so that when a particular impact force is selected the appropriate valve timing will be reproduced and the desired force obtained. It is also possible to set up a sequence of blows of differing selected force, setting each blow using the computer memory.

Abstract: The platen of a press which is provided with multiple longitudinally running T-slots for clamping a tool such as a die or mold to the platen has a frame secured to it which supports and guides a travelling clamp so that the travelling clamp can be moved laterally to serve any one of several T-slots in the platen. In one embodiment, a face drive unit has its motor fixed relative to the frame so as to drive the travelling clamp laterally. In another embodiment, the frame supports multiple travelling clamps and each clamp is provided with its own lateral drive along a frame which extends along the face of the press slide and is common to the travelling clamps. Brake cylinders maybe provided for fixing the travelling clamp to the frame during press operation.