Abstract: The invention relates to a method and device for fixing columns in concrete bases. The device is a framed structure which forms a steel basket which is embedded in the concrete base and in which a column is mounted, aligned, wedged underneath and on the sides prior to placing concrete around the column.

Abstract: A heat insulated roof structure is composed of parallel beams between which a non-combustible, foraminous supporting structure is fitted. The supporting structure may be lengths of wire net, but on occasions glass-fiber fabric may be sufficient. A first layer of heat insulating material rests upon the support structure, the thickness thereof being less than one third of the total insulation thickness. On top of the first insulating layer a diffusion barrier, preferably a sheet of plastics foil, is spread, the sheet having a breadth sufficient to extend un-broken over two adjacent beams. A second layer of heat insulation material is located on top of the barrier, and uppermost there is a watertight sheeting, usually of metal plate. The thicknesses of the two layers of insulation material is selected so a slight compression occurs when the watertight sheeting is fitted, whereby air pockets below the sheeting are avoided.

Abstract: A tray loading mechanism for moving accumulated charges of containers from an accumulating position into trays at a loading position through the unclosed end flaps on the trays including a loading conveyor with endless support means movable along an endless path and mounting a plurality of pusher assemblies thereon at equally spaced apart positions therealong for movement between the accumulating and loading positions.

Abstract: The invention relates to a plant for producing pallet-less stacks of bundles and particularly sacks around which is shrunk a sheet with which the bundle is palleted, the bundle stack is provided with a first cover sheet and is covered with a sheet covering, the packing sheet is shrunk, the stack is rotated by 180.degree., is provided with a second top sheet, which is in turn shrunk and at the end of the plant the sheet-wrapped pallet loads are accumulated in such a way that one or more loads can simultaneously be removed transversely to the stack conveying direction leading to sheet-wrapped bundle stacks with perfectly formed free spaces in the vicinity of the stack base surface for the engagement of conveying and lifting mechanisms.

Abstract: A cinch strap is provided which is generally of two-part construction. The first part comprises a tensile load-carrying band and buckles are secured to opposite ends thereof so that the strap can be fastened to a saddle. The second part comprises a resiliently compressible, cushioning band secured in face to face relationship with the first part. A closed loop is formed at the center of the strap by respective lengths of the bands and the respective length of the first band lies in a slack bight in an unstressed condition. When the strap is subjected to increasing longitudinal tensile load, for example, by the body of a horse the respective length of the second band stretches until the slack is taken up and any further increase in load is shared between both lengths.

Abstract: A mower conditioner having a conditioning rotor (22) which is supported at its ends in bearing units (51) that are secured to side support walls (24) by releasable fastening means (56) including a pair of coaxial fasteners defining an axis (68), parallel to that of the rotor axis (23), about which the bearing units (51) and rotor (22) can swing downwards until the rotor (22) contacts the ground, thereby facilitating removal and re-attachment of the conditioning rotor (22). The rotor axis and axis of the fasteners may lie in a plane that is inclined upwards and rearwards from the ground. The rotor (22) may be driven at one end by a spindle (81) that is axially disengageable from the rotor. The spindle (81) may be driven by a chain drive mechanism (71, 76) including an intermediate double ring sprocket (73) that is reversible on its shaft (86) to allow two drive ratios to be selected.

Abstract: This compact gear box is intended for a corn harvesting unit having a pair of harvesting rolls and a pair of gathering chain assemblies. The gear box includes a drive shaft and first and second pairs of shafts connected to the harvesting rolls and the gathering chain assemblies respectively. The drive shaft includes a bevel gear driving a bevel pinion gear mounted to the end of each of the first pair of shafts to rotate the harvesting rolls. The first shafts each include worm gears and the second shafts each include worm wheels engageable by associated worm gears of the first pair of shafts to rotate the gathering chain assemblies.

Abstract: An overfill protection apparatus is provided for a roll baling machine to prevent overfilling the bale chamber. The overfill protection apparatus includes a trip lever and an actuating lever. When the bale chamber is filled to a predetermined level, the trip lever moves from a first to a second position to allow the actuating lever to interrupt the driving of the pickup header of the machine.

Abstract: A method of and an apparatus for the combining of strands comprises swinging a hollow shaft about an axis without rotating this shaft while guiding the strands to an assembly point substantially at the pivot of the shaft. The strands are then spread to pass through a cluster of holes on a distributor plate carried by the shaft before being collected again at a closing point, the points lying substantially along a straight line including an acute angle with the axis about which the cycloidal path is generated.

Abstract: A yarn brake and process for applying substantially uniform tension to at least two yarns moving from separate, cross-wound, supply packages of yarn in a textile yarn processing machine, particularly a two-for-one twister, is provided. The yarn brake mechanism includes a member defining an outer, frusto-conical shaped, yarn braking surface tapered in the linear direction of movement of the yarns, and a comb-like, braking, ring member slidably positioned around the braking surface for receiving the moving yarns in braking engagement between the braking surface and the ring member. The ring member has slightly spaced-apart teeth of pliantly elastic, springy material positioned therearound and extending therefrom generally in the linear direction of movement of the yarns.

Abstract: A pipe store for SZ stranding of electrical and/or optical stranding elements is constructed of carbon fibers bonded with adhesive material, whereby the weight is lowered and friction is reduced.

Abstract: The present invention relates to a pneumatic twisting spinning apparatus comprising a drafting device for forming a fleece, a deflection roller, a pneumatic twisting nozzle for injecting air into a twisting tube to form a swirling air stream, so that the fleece can be twisted into a yarn, a take-up roller for withdrawing the yarn, and a winding roller. The deflection roller is disposed adjacent to the front roller, for varying the direction of fleece travel and supplying the fleece along an outer peripheral wall of said front roller, and separating ends of peripheral fibers from the fleece as free fibers, which will be twisted by the pneumatic twisting nozzle so as to be wound around central main fibers, thereby forming a bundled yarn.

Abstract: Two offset and opposite rotating members have annular shoulders which are surrounded by frontal surfaces that are being at right angles to the axis of rotation of the members and partially opposed to each other. A first one of the members is mounted on a rotation drive shaft, and is made up of two faced disks, while the other one rests with its own shoulders on the shoulders of the first member and rests also on another point for mutual positioning of the members. Material to be processed may be easily inserted sideways between the two opposite members.

Abstract: A gas turbine is employed in a combined cycle system to produce one or more chemically useful products. Selected exhaust gases are fed back into the gas turbine compressor so as to establish a stable mixture of working fluid constituents for the gas turbine. The gas turbine is preferably configured in a combined cycle arrangement and both mechanical and thermal energy is extracted from the flow of gases through the load turbine, this energy being used in the production of useful process fluids. The methods and apparatus of the present invention are particularly unique in that here the principal output of the combined cycle plant is not electrical energy but rather valuable chemical products. In short, the gas turbine is being employed as a high-temperature reactor from which both mechanical and thermal energy may be extracted as a result of the energy in the gaseous reaction products.

Abstract: The present invention relates to a combustion chamber in a rocket propulsion system comprising a combustion enclosure and a nozzle for ejection of the gases produced in the combustion enclosure, the divergent portion of the nozzle comprises an outer divergent portion connected to the throat of the nozzle and at least one inner divergent portion of which the exit section is smaller than that of the outer divergent portion and which is fitted in the outer divergent portion and connected thereto by connecting means associated with means for selectively destroying said connecting means to allow automatic separation and ejection of the inner divergent portion at a predetermined instant of functioning of the combustion chamber corresponding to a predetermined altitude of the rocket propulsion system.

Abstract: An exhaust gas cleaning device of an internal combustion engine, comprising a secondary-air supply system connected to exhaust ports to supply the secondary air for cooling the exhaust gas, and reed valve devices installed in the secondary-air supply system and adapted to be opened and closed by the pulsating pressure generated in the exhaust ports when the engine is in operation. The reed valve devices are mounted on the side surface of the cylinder block, each of which has a reed valve chamber and a reed valve that divides the reed valve chamber into an upstream chamber and a downstream chamber and that is adapted to be opened and closed by the pulsating exhaust gas. The upstream chamber is communicated with the open air via a secondary-air intake pipe, and the downstream chamber is connected to the exhaust port via a secondary-air supply passage.

Abstract: A system for varying the speed and displacement of a variable-displacement hydraulic motor and for providing a feedback signal which prevents the motor from stalling when an operator tries to reduce the motor displacement below the stall level. The system is especially useful for operating a hydraulic winch system on a wire rope crane. A variable displacement hydraulic pump provides pressurized fluid to operate a variable displacement hydraulic motor for lifting loads supported by the wire rope. The motor speed is controlled by varying the displacement of the pump and/or the motor, with the motor speed generally increasing as motor displacement decreases. The motor could stall if the crane operator decreases motor displacement below a critical value. A feedback signal coupled to the motor controls the motor displacement to prevent motor stalls.

Abstract: A resonant free-piston Stirling engine having a new and improved start-up and control method and system. A displacer linear electrodynamic machine is provided having an armature secured to and movable with the displacer and having a stator supported by the Stirling engine housing in juxtaposition to the armature. A control excitation circuit is provided for electrically exciting the displacer linear electrodynamic machine with electrical excitation signals having substantially the same frequency as the desired frequency of operation of the Stirling engine.

Abstract: An engine has at least two piston-cylinder assemblies each comprising a cylinder formed in an engine block with a cylinder head and a piston therein in sliding relationship toward and away from the head, a piston rod operatively connected to the piston and to a crankshaft, motion producing member of shape-memory material, e.g.

Abstract: A brake master cylinder assembly comprising a cylinder body having a stepped axial bore with large and small diameter portions, a tubular piston slidably disposed in the large diameter portion, and a primary piston one end being slidably disposed in the tubular piston and the other end in the small diameter portion, the primary piston being operatively connected to the brake pedal. The other end of the primary piston defines a pressure chamber in the small diameter portion in communication with the brakes. The primary and tubular pistons define an annular pressure chamber in the large diameter portion. Actuator means indirectly responsive to movement of the brake pedal moves the tubular piston to create low pressure in the annular pressure chamber which is in restricted fluid communication with the pressure chamber providing braking pressure at idle with reduced force on the brake pedal required.

Abstract: A condensation system for use in a power plant including a steam generator and steam turbine comprises at least one side stream condenser. The side stream condenser defines therein first and second hot wells with the first hot well receiving therein condensate produced by condensing steam exhausted from the steam turbine. A condensate pump device forcibly delivers the condensate through a condensate feed line having one end thereof connected to the first hot well and the other end communicating with the second hot well. A first purification device is provided in the condensate feed line to remove impurities from the condensate flowing therethrough. A main condensate pump device forcibly delivers the condensate through a main condensate feed line having one end thereof communicating with the condensate feed line and the other end connected to the steam generator.

Abstract: A unique fuel system for supplying fuel from a fuel source and to a turbine engine is disclosed and comprises a fuel inlet conduit having one end adapted for connection with the fuel source and a fuel outlet conduit having one end adapted for connection with the turbine engine. The other end of the inlet and outlet conduits are connected to a valve movable between a bypass and operating condition. Both ends of a third conduit are also connected to the valve while a fuel pump is fluidly connected in series with and at a midpoint of a third conduit. In its bypass position, the valve fluidly connects the inlet and outlet conduits together while simultaneously sealingly closing the third conduit and entrapping any fuel contained therein. In its operating condition, the valve simultaneously connects the inlet conduits with one end of the third conduit and the other end of the third conduit to the outlet conduits thus supplying fuel to the engine.

Abstract: A regenerative, thermodynamic cyclic process for refrigerating machines employing a high-speed compressor. During an expansion phase, a gaseous coolant is pumped by this compressor directly out of a working volume and transferred, under compression, into an intermediate tank or into a second working volume, and during a following compression phase, the coolant is pumped by the compressor out of the intermediate tank or the second working volume, while using a reversing valve actuated to operate in synchronism with a displacer movement, and returned to the first working volume of the refrigerating machine. The expended compression work is thus recovered.

Abstract: Vegetation is hydro-cooled, and purged of oxygen-containing air while in an enclosed trailer. Although the trailer itself has doors pivoted over an opening at the rear, the hydro-cooling process occurs while the trailer is backed against an alcove. The alcove has an air seal around the opening in the trailer. Chilled water from a refrigeration unit is sprinkled from a sprinkler built into the top of the trailer onto the vegetation. The water, after flowing over the vegetation, runs out the rear of the trailer into a drain, which is located in the floor of the alcove. To remove the oxygen within the trailer to a minimum, a nitrogen cap is maintained over the chilled water reservoirs and heat exchangers of the refrigeration unit so that oxygen from the air will not dissolve into the cooling water. To purge the oxygen from the trailer, while being hydro-cooled, nitrogen is released within the trailer beneath the vegetation.

Abstract: The invention is an energy-efficient all-electric environmental control system (70). The system includes a cabin compressor (16) and a Freon compressor (14), both of which are commonly driven by a two-speed electric motor (12). The motor (12) operates at low speed at low altitudes and on the ground to drive the Freon compressor (14). Freon fluid then cools the electric motor (12) and the cabin (18) and avionics (56) by means of the evaporator dehumidifier systems (72) and (74), respectively. At high altitudes the electric motor (12) runs at high speed to drive the cabin compressor (16) to provide pressurization for the cabin (18). In this operation mode, the Freon compressor can be disconnected via an electromagnetic clutch (48).The ECS (70) also includes a liquid Freon pump (52) which can be utilized when the Freon compressor is disconnected or bypassed to circulate liquid Freon to cool the electric motor (12) and to circulate through the evaporators (38) and (76).

Abstract: A computer cooling system has gaseous refrigerant compressed in a compressor and delivered to a first stage condenser. The first stage condenser includes a heat exchanger through which return coolant from the building heating system circulates to partially condense the gaseous refrigerant. The partially condensed refrigerant is directed to a second stage condenser wherein a portion of the refrigerant is diverted and flashed through an expansion valve into the second stage condenser to fully condense the nondiverted portion of the refrigerant before delivering it to the cooling coils of the computer. A pressure regulator valve controls the pressure and temperature of the diverted refrigerant in the second stage condenser to ensure that the nondiverted refrigerant is fully condensed. The used diverted refrigerant is discharged from the second stage condenser through the pressure regulator valve into an accumulator which also collects return coolant from the cooling coils of the computer.

Abstract: In a single circuit refrigeration plant, a refrigerant gas stream while flowing in the circuit is compressed by a compressor, circulated from the pressure side of the compressor through a condenser, then an evaporator and finally back to the suction side of the compressor. A housing is provided having two concentrically located contiguous compartments. Of these, the first compartment is interposed between the pressure side of the compressor and the condenser. The second compartment is interposed between the first compartment and the refrigerant gas return line to the suction side of the compressor. In the first compartment, the compressed refrigerant is degassed and forwarded to the condenser and the separated oil, still having some gas dissolved in it is forwarded under pressure to the second compartment.

Abstract: A stitch forming device comprises a hook element and a closure element. The hook element is fabricated from an unweakened, solid or strong body member and enables constructing the hook so that it also is extremely robust. The hook element is slidingly supported by the closure element which is fabricated from a simple profile member. By virtue of the configuration which is imparted to the stitch forming device there is possible, on the one hand, a simple and economical production and, on the other hand, because of the robustness and the relatively short displacement movement needed for knocking-off the stitches there can be utilized increased working speeds and there is obtained a longer service life or longevity. By means of rotational movements, which both elements can accomplish relative to one another, it is possible to obtain novel knitted goods possessing twist effects.

Abstract: A knitting needle assembly suitable for use with a heavy yarn knitting apparatus. The assembly comprises an attachment of a suitable plastics material removably attached to a butt of a conventional knitting needle of a steel material. The attachment has a generally cylindrical configuration and preferably includes an inner member and a cylindrical outer member rotatably mounted on the inner member. Thus, the knitting needle presents a reduced friction against cams on a carriage of the machine.

Abstract: A laundry washing machine includes a washing tube, a water supply an a decalcifier for receiving water from the water supply and for discharging softened water. A metering tank is at an upper position in the machine to receive softened water from the decalcifier. A brine tank at a lower position in the machine receives softened water from the metering tank and generates brine. An electrochemical cell is provided to generate chlorine gas. Valves are provided to selectively pass brine from the brine tank to the electrochemical cell or to the decalcifier. Chlorine gas generated in the cell is absorbed and then passed to the washing tube.

Abstract: In a washer-dehydrator, an eccentrically set pulsator is driven through a rotation moment-transmitting mechanism, and, even in case washing water streams containing foreign matter are drawn below the pulsator by the action of pumping blades mounted on the underside of the pulsator. The operation of the rotation moment-transmitting mechanism is not obstructed by the foreign matter, but circulating water streams can be smoothly produced to trap foreign matter retained in the washing water.

Abstract: An apparatus for producing pile articles having complicated and high color tone and structure, such as artificial furs, writing brushes, brushes, etc. comprises a rotating body to which a pile article is fixed and which is rotated together with the pile article whereby centrifugal force is applied to the piles, a rotary container wherein at least one treating liquid for the above described piles is retained and at least one inner interface of the treating liquid is formed owing to the centrifugal force caused by the rotation to contact the piles with the treating liquid, and a feeding portion from which the treating liquid is fed into the rotary container and a discharging portion from which the treating liquid is discharged.

Abstract: Apparatus for the application of liquids to moving material, such as patterned application of dyes to moving textile material, including a liquid applicator positioned above the material path of travel for continuously discharging liquid in a row of plural streams downwardly onto the material, means for selectively deflecting selected of the continuously flowing streams in accordance with a pattern control device, and collection means for receiving the deflected liquid to prevent its contact with the moving material. The collection means includes a collection chamber having an opening for receiving deflected liquid, and three collector plates. The primary collector plate is made of very thin metal and has tension applied to the extremities as measured by a compression-type tension measuring device.

Abstract: A squeeze roll arrangement and method is disclosed for high expression squeeze roll liquor expression of non-woven fiber batts. An auxiliary conveyor belt is provided to squeeze the batt before passing through the nip of the squeeze rolls with the batt. In this way, a portion of the liquor carried by the batt is expressed prior to passage of the batt through the nip. Since the batt is carried by the auxiliary conveyor belt, disruption of the batt is minimized. Preferably, chains are provided on either side of the batt to maintain a preferred orientation of the batt. Various sprockets and pulleys are provided as desired to guide the chains with various turn rollers provided to carry the conveyor belt. The chains are flexibly attached to the edges of the belt to continuously guide the belt. In this way, alignment of the belt on the turn and squeeze rolls is maintained.

Abstract: A door or window lock has a body which is securable to the door, window, or a surround for a door or window, and has at least two passages therethrough that extend angularly relative to one another. A locking bar is slidable axially in any one of the passages to adopt either an operative position or an inoperative position, and in the operative position a locking end portion of the bar protrudes a predetermined distance beyond an adjacent side of the body. The bar can adopt either of two operative positions for each passage and in each of those positions the locking end portion protrudes beyond a respective one of two opposite sides of the body. A key operated locking member is rotatably mounted on the body and can adopt a particular locking position for each of the passages. In the locking position for one passage, the locking member protrudes into a recess of the bar to hold the bar against movement in either direction from its operative position.

Abstract: An automatic hook lock which is electrically and manually operable and is particularly adapted for manual, motorized or remotely controlled sliding gates to which it is attached on the surface thereof or within the interior thereof. The lock consists of a rectangular metal box containing an electromagnetic solenoid with relative magnetic plate, a cylinder lock with a key, a hook and a system of five rocker levers actuated by a spring-compressed plunger. The lock is assembled in such a way that every time the solenoid receives an electrical impulse, the magnetic plate is moved to release the system of rocker levers. The combined action automatically provides the freeing and elevation of the hook. The inverse, blocking action occurs automatically with the closing of the gate. The mechanical, manual opening of the lock is achieved using a key.

Abstract: The cylinder lock includes, in addition to conventional segmented tumbler pins, auxiliary tumbler elements movable at an oblique angle relative to the keyway and being engageable at one end into arresting recesses in the housing; the other end of the auxiliary tumbler cooperates with a camming surface on a feeler pin, the end of which projects into the keyway and is controlled by corresponding recesses provided on lateral sides of the key.

Abstract: A method and apparatus (32) is provided for crushing a portion of a corrugated sheet (10) in an area (20, 22) extending transversely to the corrugations in the sheet without blocking the passages (14) between the crowns (12) of the uncrushed portions of the corrugated sheet (10). In accordance with the method, spacing members (58-66 and 78-88) are inserted into each of the passages (14) on either side of a ridge (12) to be crushed, and the ridge (12) between the spacing members (58-66 and 78-88) is crushed before the spacing members (58-66 and 78-88) are withdrawn. The apparatus for crushing the sheet (10) includes opposed die members (34, 36), each having a plurality of blades (58-66 and 78-88) spaced by slots (68-76 and 90-98). The slots (68-76 and 90-98) in each die member (34, 36) progressively decrease in depth and are positioned to receive the blades (58-66 and 78-88) of the opposed die member.

Abstract: A method and apparatus is described for use in combination with a machine for corrugating a continuous strip of flat sheet material which prepares the sheet material for separation into sections after it has been corrugated. A platform is located upstream of the corrugating machine. The platform is intermittently advanced in the direction of travel and at the speed of the sheet material so that the platform is stationary relative to the sheet material. A scoring device is located on the platform. The scoring device moves across the width of the sheet material as the platform moves with the sheet material to form a spanwise weak point in the material. After the material passes through the corrugating machine, it can readily be separated into sections at the weak points formed in the material by the scoring device. Depth of scoring can be varied also so that substantial/total separation can also occur within the corrugator though it would not separate the flat strip before it entered the corrugator.

Abstract: A drawing arrangement for producing drawn formations in sheet-shaped workpieces includes a lower tool having a supporting surface for the workpieces and a recess which opens onto the supporting surface, and an upper tool having a female die and movable toward and away from the lower tool for confining a region of the workpiece between itself and the supporting surface. A mandrel is mounted in the recess of the lower tool for movement between a retracted position in which it is fully accommodated in the recess and thus does not project beyond the supporting surface and form an obstruction to the movement of the workpiece, and an extended position in which it penetrates into the female die and forms the drawn formation in the workpiece.

Abstract: A method for making a bearing bushing for the support of the trunnion in universal joints comprising a cylindrical sleeve section, a bottom section at one axial end of the cylindrical sleeve section, the peripheral edge joining the sleeve section and bottom section being of small cross-sectional radius, consisting of the steps of shaping a blank to form the sleeve section and bottom section which uniformly extends axially inwardly to a central tip and thereafter flattening from the inside at least in the area of the central tip of the bottom section while supporting the bottom section and corresponding forging the outside surfaces of the bottom section in the area of the peripheral edge between the surface of the sleeve section and outside surface of the bottom section.

Abstract: The present invention relates to improvements in the strength of ends used on metal beverage containers. Such ends generally comprise a central panel portion of a substantially planer character, a surrounding U-shaped sidewall having inner and outer legs, a curved intermediate portion integrally joining the inner leg to the U-shaped sidewall, and a peripheral curl extending from the outer leg for double seaming the end onto a can body. In accordance with the present invention, the intermediate portion and adjacent central panel portion are firmly supported by a die while a clamping force is placed on an annular band of the upper surface of the end at the intermediate portion. The clamping force is increased until metal flows inwardly and outwardly from the contact point resulting in a free compression doming of the center panel and an outward deflection of the inner leg.

Abstract: A method for making replacement grouser bars particularly contoured to fit rock worn grouser shoes from blanks cut from inexpensive sheet metal. The blank has a straight lower edge and a curved upper edge such that the bar is thicker at the ends than in the middle. The straight lower edge is easily double beveled and the blank is reverse forged to obtain a finished grouser bar having a straight upper edge and a curved lower edge, the bar still being thicker at the ends than in the middle.

Abstract: The invention relates to a method of embossing heat exchanger plates in several steps by a pressing tool, in that after a portion of the sheet blank has been embossed a subsequent portion of the blank is embossed, after this has been positioned and fixed in place between the punch and the die of the press. The positioning and clamping takes place in such a manner that a groove with zigzag extension pressed at the preceding embossing step in the sheet is caused to engage between a groove and, respectively, a bead arranged in the punch and the die which prior to the embossing are moved against each other and inside of the plane of the punch and, respectively, die by spring force.

Abstract: A bending and forming device is disclosed having an operating head and its holder features a holder which is a multi part structure including a saddle for seating the head and a releasably connected gib, a limited portion of which is adapted to releasably bear on and hold the head to and for a rocking or rotative movement thereof on its seat. The head is preferably a cylindrical body having a groove the length of its outer peripheral surface, the bounding walls of which groove determine the operation to which the head may be applied. The retention device is connected to the saddle so as to enable an easy adjustment of its position to accommodate variation in the dimension of the operating head or wear of the related parts. In preferred embodiments the saddle affords a concentrated load bearing surface for the head provided by relatively narrow, adjacent and relatively spaced, longitudinally extended, strip-like bearings.

Abstract: Apparatus for radial shaping of rotors, stators, crankshafts, spindles and the like from an elongate seamless tube where a supporting ring performing a reciprocating motion according to an adjustable stroke of a connecting rod causes by way of rollers and guiding segments a reduction and increase of the radial distance of sliding shoes with forming jaws with respect to the formed object.

Abstract: A C-frame press includes a C-shaped frame having a crown part and a bed part defining an opening therebetween, and spacers positioned in the opening and being sufficiently long for urging the crown part and the bed part apart in the vertical direction a distance sufficient to cause the frame to exert on the spacers a load which is at least a substantial part of the normal maximum press load exerted by the press on a workpiece. The press further has a slide reciprocal between the crown part and the bed part, a main shaft having a flywheel thereon and positioned laterally of the slide within the frame, eccentric discs rotatably mounted within the frame and driven from the main shaft, connecting rods extending substantially horizontally from the eccentric discs towards the upper portion of the slide and reciprocated by the eccentric discs, and a toggle mechanism mounted between the slide and the crown part and having a central shaft portion to which the connecting rods are connected.

Abstract: The invention is a dynamic spot calibration system (60) and process for calibrating, both for sizing and counting, an automatic particle counter (APC) (42). The APC includes a sensor (38) which uses a light source that focuses through a sensing window (48) onto a sensor element. The system (60) includes a probe (62) which carries a spot (64) of known size. A receiver (66) grips one end of the probe (62) and is attached to an electromagnetic driver (70) which, when activated and driven by an oscillator (72)-amplifier (74) arrangement, interposes the spot (64) into, and out of, the fluid passage defined by the sensing window (48). The probe is precisely positioned in relation to the window (48) by an adjustable mounting system including a pedestal (76), a vertically adjustable arm (78), and a graduated helical rack (84).

Abstract: Methods and apparatus for calibrating terminated ultrasonic electroacoustic transducers are disclosed. The transducers are excited by a driving signal to emit an ultrasonic acoustic wave, which wave is received either by the same transducer after reflection or by a second transducer to produce an output signal. The driving signal and output signal are supplied to measuring circuitry deriving transducer performance calibration signals, such as transducer gain, transducer sensitivity, acoustic field pressure and intensity. These performance characteristics of the transducer are measured in absolute terms under conditions of actual termination. The transducer characteristics are obtained in order to determine the acoustical performance of transducers useful in biomedical and other fields.

Abstract: An apparatus such as a caliper gauge can be utilized in performing a measurement, such as a thickness measurement, of a traveling sheet or the like. The apparatus comprises a surface follower body (18, 72, 74) adapted to be constrained during the measurement for movement along a surface follower path intersecting the path of the sheet (10, 80) and urged by a force toward one surface of the sheet. The body has a gas confining wall (32a, 90, 104) bounded by a uniformly distributed pressurized gas supply aperture or apertures (46, 92, 106) for pressurizing a gas bearing region (48, 108, 110) contiguous to the sheet surface with sufficient pressure against the sheet and the wall to levitate the body against the urging force. The pressurization is effected without producing substantial amounts of high velocity gas flow over the surface of the sheet within the gas bearing region.