Abstract: Apparatus for harvesting fruit or nuts which may be used with a conventional farm tractor or a self-propelled shaker unit and includes a forward frame member from which a first and second conveyor are independently attached in a parallel relationship. A cross member is attached between the rear portions of the first and second conveyors and includes a location for attaching the cross member to the drawbar of the tractor. The forward frame member attaches to the front of the tractor similar to a front-end loader. A frame is positioned between the first and second conveyors and supports a resilient top sheet which extends outwardly past the first and second conveyors. A first support device is attached to the rear portion of the first conveyor and includes an offset axle and wheel. A second support device is attached to the rear portion of the second conveyor and includes an offset axle and wheel.

Abstract: A crop engaging device for conveying and/or treating crop comprises a support means and a plurality of outwardly extending crop engaging elements. The support means may comprise a rotor with the crop engaging elements extending outwardly from the rotor center, or a stationary supporting plate with outwardly extending elements which protrude into a flow of crop driven by other means. An array of crop engaging elements is attached to a transverse support bar which is substantially transverse to the principal direction of crop flow. All the elements in the array are inclined at the same angle to the transverse support bar. Elements of succeeding bars may be inclined in opposite directions to each other or inclined in the same direction. The device finds use in crop conditioning apparatus, crop pick-up and conveying apparatus, particularly where an alignment effect is required, and grain threshing apparatus.

Abstract: An attachment to a conventional rake having a grasping head pivotally attached to a link which is pivotally attached to the rake head such that an operable clamp is formed, the grasping head being operated by a lever attached to the rake's handle. The pivotal link separates the upper portions of the two heads such that the capacity of the "grasp" is greater than that of conventional rakes with grasping apparatus.

Abstract: A metallic cable comprises a strand of identical helical shaped filaments positioned beside and against each other such that each filament of the strand is in line contact with at least one other filament of the strand. The helixes of the filaments of the strand are sloped in a first direction. A single filament is twisted with the strand in a direction opposite to said first direction. An apparatus and a method for manufacturing the metallic cable are also disclosed.

Abstract: This invention concerns an improved splicer (10) to splice textile yarns mechanically, the splice being obtained by coupling two single untwisted yarns (70-71) and reapplying the twists thereafter, part of such single yarns (70-71) being untwisted until twists of a sign opposite to the original twists have been imparted, such part then being doubled and remaining tails (270-271) being obtained, the doubled tract being then retwisted by imparting a required value of twist.

Abstract: A yarn false twisting apparatus is disclosed which comprises a pair of rotating circular discs having cooperating friction surfaces for engaging a running yarn at a twisting zone. The drive system for the discs includes a drive component which includes a drive whorl and a coaxial drive pulley, and which is adapted to engage two separate drive belts. The drive component includes a unitary tubular drive member, a central shaft extending through and fixed to the drive member, a sleeve mounted to the frame of the apparatus and extending between the shaft and drive member, and bearings positioned between the shaft and sleeve. Also, the drive component is mounted to the frame by an arrangement which permits adjustment of the rotational axis of the drive whorl about a second axis which perpendicularly intersects the rotational axis, so as to permit accurate alignment of the rotational axis of the whorl along a direction perpendicular to the running direction of the tangential drive belt.

Abstract: A method for yarn piecing in a fasciated yarn spinning unit, in which a yarn portion to be pieced is always nipped by a piecing roller means during the piecing operation, whereby feeding length and speed of the yarn in the piecing operation can be accurately controlled by the piecing roller means. Thus, a complicated restarting operation can be carried out in accordance with a predetermined time schedule.

Abstract: The present invention concerns a method and apparatus for spinning using fiber bundles selected from a mass of loose fibers. The apparatus essentially consists of means for removing the fiber bundles comprising a perforated belt (8) and a retaining drum (5) enabling one end of the fiber bundles to be positioned in a fixed area (12) for formation of the thread in its initial stage (15). This fixed area comprises a screen beneath which there is disposed a suction device (13). A hollow twisting flyer (14) and a rotating drum (16) connected to a pressure roller (17) ensure that the thread in formation (15) is caused to rotate and move in translation. This apparatus constitutes an improvement upon open end machines.

Abstract: An apparatus for peeling and twisting an electric wire having an insulating coating comprises a machine frame, a shaft rotatably mounted on said frame and being adapted to be driven by a motor, a machine body movably mounted on the shaft and an elastic member for urging the machine body to an end position on the shaft. The shaft includes wire clamping cam, insulating coating cutting cam, twisting cam and cut insulating coating disengaging cam. A wire clamping means is mounted on the frame and is following the clamping cam. The machine body includes an insulating coating cutting means which follows the insulating coating cutting cam for cutting the insulating coating of the wire, a conductor twisting means which follows the twisting cam for twisting the conductors of the wire and a cut insulating coating disengaging means which follows the disengaging cam for disengaging the insulating coating which has been cut.

Abstract: The fuel nozzles in a variable geometry combustor cooperate with an inwardly projecting liner wall section to define a sheltered pilot combustion zone within the liner. Simultaneously operable inlet valves are provided for admitting a selectively variable quantity of combustion air into the pilot zone.

Abstract: A process for producing work comprises passing a combustion gas stream through a gas nozzle which directs the stream onto the rotatable blades of an expansion turbine. A fluid having a sonic velocity greater than the combustion gas is directed against and across the air-foil shaped vanes which form the nozzle at sonic velocity allowing the gas stream to accelerate to beyond Mach 1 without excessive loss of pressure. The fluid such as steam can be used to cool the vanes prior to entering the gas stream.

Abstract: An apparatus for controlling a gas turbine engine. A control device is provided for controlling the energy conversion function of the engine. Adjustments of the control device are obtained by comparing an actual value of a condition of the engine with a demand value of the engine condition to produce an error between the actual and demand values and calculating a value corresponding to a setting of the control device to reduce the error to zero. A surge detector generates a surge detection signal when engine surge intensity exceeds a reference level. The engine condition demand value is modified based upon the surge detection signal to suppress the engine surge.

Abstract: A thrust reversing system for controlling the fan gases from a thrust producing aircraft engine. The system comprises a first group of blocker doors surrounding the upper longitudinal portion of the engine fan duct; a second group of blocker doors positioned rearward of the first group surrounding the entire engine fan duct; mechanism is provided for translating an upper movable fairing and a lower sleeve section which during translating provides an upwardly directed opening from the fan duct through gas-directing cascades and deploys the blocker doors from a stowed duct wall lining position to a deployed fan gas blocking deployed position.

Abstract: An exhaust system of a two-cycle engine mounted on a motorcycle is provided with a subchamber branching off from the exhaust pipe. The subchamber is disposed by utilizing a so called dead space in the frame of the motorcycle, particularly in a position in front of the engine and between a pair of cradle pipes of a body frame on which the engine is mounted. With this arrangement, it becomes possible to layout the position of the subchamber without altering the configuration of the body frame, and there is further advantage that the subchamber is well protected by the structural members.

Abstract: Control arrangement for regulating the speed of movement of a hydrostatic energy consumer is provided in which the ratio between pressure supplied and power on the output side is constant, in particular, a piston capable of sliding in a cylinder connected to a pressure main line, characterized in that an initial hydrostatic displacement machine is connected between the pressure main line and the consumer and is coupled with a second hydrostatic displacement machine on the shaft side, the second hydrostatic displacement machine is adjustable with respect to its displacement volume per revolution and is connected on the one hand to the pressure main line and on the other hand to a chamber carrying a lower pressure, where the adjusting element of this second displacement machine is connected with an r.p.m.-regulating device.

Abstract: A system for limiting the torque of a multiple hydraulic system power drive unit wherein plural hydraulic motors are connected to a common torque-summing output device. The system has at least two separate hydraulic circuits, with there being a pressure-limiting valve in each circuit which controls the porting of motor pressure to a low pressure return line and which sums the motor pressure existing in the fluid circuit in which the valve is positioned and the pressure in the other hydraulic circuit whereby the maximum pressure of the fluid delivered to the motor cannot exceed one-half the maximum pressure when both circuits are active to limit the torque applied to the torque-summing output device.

Abstract: An hydrostatic drive unit for driving a motor vehicle is provided including a pump, a hydraulic motor, connecting means between said pump and motor, a branch line connected to the connecting means, a shut-off means located in said connecting means, measuring means in said shut-off means for measuring the horizontal forces arising in the direction of the longitudinal axis of the vehicle, said shut-off means acting on the hydrostatic drive unit, said measuring means including a mass capable of being displaced in the direction of the longitudinal axis of the vehicle against a forcible stop, resilient means acting on said mass to position the same normally in a center position capable of movement in two directions on the longitudinal axis of the vehicle and in working connection with the shut-off element whereby during the exertion of force upon the forcible stop, said mass acts directly or indirectly on said shut-off element to control fluid flow in said connecting means.

Abstract: A hydraulic transmission with infinitely variability comprising a pair of identical cages in mirror image configuration containing radial slots, radial and axial vanes within the slots and camming surfaces to reciprocate the radial and axial vanes over the rotation of the cages, a non-rotatable but axially slidable cylinder for forming chambers within the slots of the cages, one of the cages being the pump and the other the hydraulic motor, and provision to slide the cylinder to adjust differentially the volumes within the chambers and therefore the input to output torque speed ratios of the transmission.

Abstract: A thermal engine with a power source located either externally or internally to its cylinders, such as a compressor or Stirling cycle engine. The engine includes a plurality of chambers in each which a double-effect piston is mounted. Each piston and chamber together form an expansion phase side and a compression phase side. Each expansion side of one piston and chamber assembly communicates via a fluid transfer circuit with a compression side formed by another piston and chamber assembly and directly opposite the expansion side. Each fluid transfer circuit is traversed by a gas conveyed from one chamber to the other by movement of the pistons. Each piston is equipped with an arm cooperating with means for transforming reciprocal circular motion of the pistons into circular motion of an output shaft. The chambers are distributed around the transforming means and the output shaft. Each chamber, piston and each expansion and compression side have a toroidal shape.

Abstract: For use in a brake booster of the type having a master cylinder disposed rearwardly of a booster mechanism having a power piston and in which a braking reaction force produced on an output shaft is transmitted therefrom to an input shaft through a reaction disc and a reaction transmitting member, an apparatus is provided for adjusting the magnitude of a clearance defined between the reaction disc and the reaction transmitting member. In this apparatus, the input shaft comprises a first section associated with the reaction transmitting member and a second section on which a valve seat is formed. The valve seat forms a valve mechanism disposed within a valve body for controlling the opening or closing of a passage for hydraulic fluid. The first and the second section of the input shaft are formed by separate members, both of which project toward the front shell and are connected together in a manner to permit their relative position to be adjusted.

Abstract: This invention relates to a solar energy system wherein chemical A is converted into chemical B in the presence of a photo-sensitizer with the absorption of considerable heat, which heat can be redelivered at will by placing chemical B in contact with a catalyst. The catalyst is stable at high temperatures permitting operation through the phase change from liquid to vapor with consequent use of chemical B for performing work in engines, heat pumps and the like.

Abstract: The disclosure relates to a method of operating an industrial furnace which is heated by recuperator burners from which the exhaust gases are extracted via steam jet injectors. The exhaust gas-steam mixture from the steam jet injectors passes into a waste heat boiler in order to produce water vapor. This water vapor is delivered to the steam jet injectors in order to drive them. When water vapor is produced in excess, preliminary expansion can be carried out in a turbine in order to generate useful energy. Such conditions are produced in particular when the industrial furnace operates with a steam generating water cooling system for parts of the furnace which become hot. The resulting water vapor is then also led through the waste heat boiler. The useful energy occurring in the turbine can serve to drive the blower for the combustion air for the recuperator burners.

Abstract: In a cryogenic split Stirling refrigerator, the compressor and displacer are driven by linear drive motors. Each compressor linear drive motor has a plurality of radial permanent magnets 44, 46 mounted to each compressor piston 22, 24. A tapered collet 56 expands an expanding sleeve 42 against the magnets and compresses a sleeve 38 against the piston. A housing 34 hermetically seals the gas about the armature and supports the coil assembly 76, 78. The displacer drive motor includes an axial permanent magnet 202 mounted to the displacer drive piston 192. It is surrounded by a housing 210 which hermetically seals the spring volume surrounding the magnet. The drive coils 216, 218 are supported on that housing. The coils are surrounded by flux returns 222, 224 which can be adjusted to minimize radial forces on the drive piston.

Abstract: Programmable headers with fixed jumpers are used at the input of a microprocessor to develop a binary code for use by the microprocessor to configure the microprocessor to the physical characteristics of an assembled refrigeration unit. The programmable header is programmed at the factory by selectively breaking the jumpers to develop the binary code. The programming of the microprocessor for accessory equipment can be performed by field service personnel by using small DIP switches to develop a binary code for the microprocessor.

Abstract: A cold box is provided for motor vehicles or similar mobile crafts, and in particular for passenger cars. The cold box is an apparatus to be built into the motor vehicle between two seats disposed next to each other and at a distance from each other. The cold chamber is disposed above a console pedestal containing the refrigeration aggregate. The cold box can be reached and operated from the passenger seats and the passengers of such a vehicle can take the cooled goods from the cooling chamber without a change in their seating position. Advantageously, the door for access to the cold chamber can have a rest position when open, which is horizontal such that cooled goods can be placed there for short times.

Abstract: A super-heat detector of refrigerant gas comprises a semiconductor pressure sensor for detecting a pressure of the refrigerant gas in a refrigerating apparatus, a semiconductor temperature sensor for detecting a temperature of said refrigerant gas, and an operational controller which converts an output signal from said semiconductor pressure sensor to a value corresponding to a saturation temperature of said refrigerant gas pressure, and produces an output electrical signal corresponding to super-heat condition of said refrigerant gas by comparison between said corresponding value of the saturation temperature and said output from said semiconductor temperature sensor.

Abstract: A refrigerator for a vehicle has a coldness accumulator formed by a container with water therein and an evaporator selectively connectable to a refrigeration cycle of an air conditioner of the vehicle. The coldness accumulator is disposed in a refrigeration space defined in a heat-insulating housing having an openable door mounted thereon. The water is cooled to freezing temperature during vehicle operation to accumulate coldness which is utilized to keep the refrigeration space at a low temperature when the evaporator is disconnected from the refrigeration cycle or when the refrigeration cycle is not operated.

Abstract: In a heat pump system according to the present invention, a plurality of heat exchangers are arranged in sequence in the vertical direction in a tank for storing a heat medium therein, and these heat exchangers are connected in series to a heat exchanger arranged outside the tank to construct a cooling medium circulating passage. A by-passing passage by-passing the heat exchanger arranged outside the tank and expanding means arranged in series to this heat exchanger is formed in the cooling medium circulating passage, and an expansion passage is arranged in parallel to the cooling medium circulating passage connected to the heat exchangers within the tank.

Abstract: A refrigeration apparatus comprising a compressor, a condenser, a pressure-reducing device and an evaporator connected sequentially in a loop. The loop includes a check valve placed between the outlet of said evaporator and the intake port of said compressor to prevent a refrigerant from flowing from the compressor side to the evaporator side; a pressure signal transmission pipe whose one end is connected to the outlet of said check valve to apply a pressure corresponding to the refrigerant pressure at the outlet side of said check valve and, a fluid control valve communicated with the other end of said pressure signal transmission pipe to control the refrigerant flowing to the inlet side of device in response to the refrigerant pressure in the other end of said pipe.

Abstract: A multi-purpose device comprises a freezing tank in which a two speed driven shaft is rotatably held. A whisk or whipping tool is secured to the shaft near the bottom of the tank, and a freezing tool is removably secured in rotation to the shaft, when desired.The device can combine the two basic functions of the complete process of producing ice cream: whipping and freezing, in the same tank.

Abstract: A steam generating and condensing apparatus having a steam generating chamber in which a diluted solution flowing from an absorption device and containing a refrigerant absorbed therein flows outside of the pipes of a steam generating heat exchanger to evaporate the refrigerant from the diluted solution with a hot fluid flowing through the pipes of the steam generating heat exchanger, and a steam condensing chamber in which the refrigerant steam supplied through a partition from the steam generating chamber is condensed by a steam condensing heat exchanger. A double-cylinder assembly is provided composed of outer and inner cylinders, with the inner cylinder being divided by a dispersing end plate into upper and lower chambers serving as a dispersing diluted solution chamber and the steam generating chamber, respectively. The inner and outer cylinders jointly define a space in which the steam condensing chamber is disposed. The partition has eliminators on an upper portion thereof.

Abstract: Cryogenic-fixation apparatus comprises a light source, a beam from which enter cooling liquid in a bath, through a window in the underside of the bath. The beam can be directed upwardly by means of a reflecting prism. When a lid of the bath is closed, the beam leaves the space defined by the path through an exit port in the lid, and is incident upon a specimen mounted on a specimen holder located above the exit port, the specimen holder being secured to an injector rod.

Abstract: A single or multi-cam system (11) for flat-bed knitting machines having needle, jack and selector cam units (13, 14 and 16) arranged one beneath the other is described. The needle cam unit (13) features at least one knitting cam and an integrated transfer cam (17, 18) for both carriage traverse and transfer directions. The knitting cam has adjustable, spaced apart, stitch cams (26, 27). The transfer cam has transfer cam parts having a pretensioning higher lobe (48, 49) for pretensioning the loops and a trailing lower lobe (51, 52) for transfering the loops and associated transfer receiving cam parts.With a multi-cam system (11) for flat-bed knitting machines of this type, the combined, respectively integrated knit and transfer cam (17, 18) is made narrower, without the additional cost or effort associated with mechanical drives and/or switching devices being necessary. For this, the transfer cam parts are formed by the respective stitch cam (26, 27), which features the appropriate pretensioning lobe (48, 49).

Abstract: A washing machine having an improved pulsator which includes a skirt, vanes projecting from the skirt, and a rod-like projection located at a position offset from the center of rotation of the skirt and extended to a position higher than the vanes. The pulsator rotates in the forward and reverse directions to responsively effect satellite motion of the rod-like projection about the central axis of rotation so that highly turbulant localized water flow is established in conjunction with a vortex flow arrangement to enhance the washing capabilities of the machine.

Abstract: An actuating mechanism for varying the Venturi gap of a jet dyeing machine allows adjustment of the gap between a zero spacing (for easy centering) and a self-cleaning, fully open position, adjustment being provided without interrupting production. As is conventional, a textile material passing pipe is reciprocal within an outlet pipe, with an end of the textile material passing pipe forming a Venturi with a circumferential lip formed on the interior of the outlet pipe. A cam and follower mechanism is mounted exteriorly of the textile material-passing pipe between it and the outlet pipe, with a cam shaft extending through the outlet pipe wall to an exterior position. Power means, which may be responsive to sensors for sensing fabric flow and liquid flow, effect rotation of the cam shaft to effect reciprocation of the textile material-passing pipe, and thus adjustment of the Venturi gap.

Abstract: A generally cylindrical yarn carrier is illustrated suitable for improved compression dyeing wherein an undulating surface provides ridges and valleys for facilitating dye flow as well as nesting while providing increased strength and stability, avoiding skips and insuring uniform dyeing.

Abstract: A padlock, which comprises a lock casing and a basically U-shaped shackle slidable therein between a closed and an open position. The shackle has two legs of different length, of which at least one is provided with a locking notch. The padlock also comprises a cylinder lock mechanism, operable by a key, and at least one locking member coacting with a guiding portion of a turnable member of the cylinder lock mechanism for locking the shackle to the lock casing. The locking member is movable dependent on the angular position of the guiding portion of the cylinder lock mechanism between a locking and a releasing position. The releasing position allows the shorter shackle leg to completely slide out from the lock casing. A retaining member is attached to the lock casing in order to keep the cylinder lock mechanism properly fitted in the lock casing. The removal of the retaining member from the lock casing requires turning of the retaining member in relation to the lock casing.

Abstract: A locking device for securing a bicycle or the like to a post or other fixture. The locking device features a replaceable lock cylinder, which in turn allows for both replacing merely the lock cylinder when the keys get lost and also allows for conforming the lock cylinder of the device to an identical lock cylinder used in the owner's home so that one key, preferably a flat key, services both the device and the home. The lock cylinder cannot, however, be removed when the device is locked and in use. The key, on the other hand, can only be removed when the device is locked.

Abstract: A latch and lock assembly for use with suitcases, briefcases and the like having a lower member secured to the case and an upper member secured to the lower member and being axially slidable relative to the lower member for latching and unlatching the case. A male member formed in the upper member is selectively engageable with a female member on the case upon axial movement of the upper member. The upper member is urged toward latched or unlatched positions by a spring disposed against a ramp-like projection on the male member having oppositely beveled sides. Disposed within the upper member is a rotatable lock cylinder urged toward a locked or an unlocked position by a cam follower acting against a resilient cam surface.

Abstract: A combination key permitting the opening of various different locks with a single key. The combination key has a hollow stem with longitudinally extending slots in which a plurality of teeth can be moved in longitudinal direction. A control mechanism arranged within the key facilitates the movement of the teeth, so that the relative positions of the teeth can be adjusted in accordance with the respective lock to be opened.

Abstract: Herein disclosed are dry type continuous wire drawing process and machine which can enhance the productivity by conducting in-line a wire drawing operation including the steps of flaw detection and wire repair. The wire to be drawn is mechanically descaled and is then coated with a lubricant. The wire thus coated is drawn through a drawing die. At the coating step, the wire is first coated with lime powder and then with metallic soap. Thus, the wire is drawn under dry and continuous conditions. After the drawing operation, a flaw in surface of the wire is detected. The surface flaw is located from the running speed or distance of the wire and the detecting instant. The surface flaw located is removed. The resultant wire is wound up. The surface flaw which cannot be removed is marked. An internal defect in the drawn wire is also detected with ultrasonic waves. The internally detected portion is also marked. All of the steps thus far recited and others are conducted in-line.

Abstract: A roll eccentricity control system for rolling apparatus in which a period of each cycle corresponding to one revolution of the roll is divided into a plurality of sections, a deviation in thickness of the rolled material in each section is sampled during the rolling operation, the sampled deviations in the respective sections for at least one period are averaged to determine a period average deviation and the deviations sampled during plural periods are averaged separately for the respective sections to determine section average deviations of the respective sections which are stored as basic data, the period average deviation is subtracted from the section average deviations and the resultant differences for the respective sections are stored as basic patterns, the basic data and the basic pattern stored for each section are readout at a suitable timing to be used for producing a reduction position control signal for that section, which is adapted to compensate the thickness variation of the rolled material

Abstract: The invention relates to the rolling and drawing of metals. The microwire manufacturing method according to the invention is characterized in that a microwire blank (1) is rolled during the drawing process in opposite directions relative to the drawing axis (B--B). The blank (1) is rolled over the same distance equal to at least one half of its circumference. The method is carried out with the aid of a device comprising a body (3), a die (4) and a mechanism for drawing wire through the die (4). The die (4) is composed of two parts (5 and 6) which interact with the blank (1) as the latter is drawn between them. Each of the die parts (5 and 6) has a working surface (8). According to the invention, the parts (5 and 6) of the die (4) are secured in the body (3) so that they can be set in synchronized reciprocating motion in parallel planes. The working surfaces (8) of both parts ( 5 and 6) of the die (4) are flat and parallel with each other and the drawing axis (B--B).

Abstract: A rotary forming machine assembly including a lower base (12) and a pair of spindle housings (14) including front (16) and rear (18) walls. The housings (14) are movably mounted on the base (12) for movement toward and away from one another. A tool spindle (20) is rotatably mounted between the front (16) and rear (18) walls of each of the housings (14) for rotation about spaced axes (B) to form a workpiece therebetween. The invention includes a deflection control bar (26) extending between and interconnecting the front walls (16) of the spindle housings (14). The control bar (26) limits the distance apart the (B) axes of the tool spindles (20) may move at the front walls (16) in response to the forming of a workpiece (22) between the tool spindles. The control bar is adjustably supported on the front walls (16) for selective movement in a direction parallel to a plane intersecting the axes (B).

Abstract: A pipe flange with a heavy welding neck which is hot formed from a circular section of steel plate having a small co-axial hole in the center.The steel around the hole is shear-formed downward and outward by a tapered die plug which is forced through the small hole, forming an integral neck on the flange. A supporting ring die is radiused at its inner corner to form a suitable fillet radius at the junction of the neck with the flange proper. A suitable preforming or post-forming operation may be required to compensate for any deflection in the workpiece out of planar configuration.

Abstract: An apparatus is provided for performing multiple operations on a conventional open-die forge press, and includes a rotatable top punch assembly and stationary bottom die assembly. The top punch assembly includes a mounting fixture secured to the press crosshead, a holder plate rotatably mounted on the fixture, a plurality of punches extending downwardly from the holder plate, and motor means for indexing the punches sequentially into forging position over the bottom die assembly. A method is also provided for making valve pots, including upsetting a heated metal block in a split die and punching a hole through the block, the improvement in which during the upsetting step a vertically reciprocable member is extended so as to close a bottom opening in the split die, in order that the split die will function as a closed die, and during the punching step the reciprocable member is retracted so as to allow a punch-core to fall through said opening.

Abstract: An apparatus for punching a workpiece has a stationary frame, a longitudinally extending row of horizontally spaced and upwardly facing different dies fixed on the frame below a horizontally elongated punching station, at least one horizontal and stationary rail fixed on the frame, and a punch carriage displaceable horizontally along the rail above the station. A turret rotates about a horizontal turret axis on the carriage and carries a plurality of radially outwardly directed different punches angularly spaced about the turret axis. A positioning unit is operatively connected between the carriage and the frame for displacing the carriage through a plurality of positions in each of which the turret axis is above one of the dies. An indexing unit angularly displaces the turret about its axis through positions in each of which one of the punches is facing down in the station toward the respective die.

Abstract: A roller is mounted on a pivot pin connecting two operating handles. In operation, two further rolls or rollers mounted on two further pivot pins, each connecting a respective jaw lever to one of the operating handles, bear on this roller. The jaw levers pivot about fulcrum pins and are provided with closing jaws for closing a clamping seal used to join the ends of a packing ligature or band. The rollers relieve the pivots of load, so that the tongs containing the jaw levers are suited to the transmission of elevated forces.

Abstract: A gas analyzer arrangement and method of operating the arrangement comprise a probe which extends from a test space containing a sample gas, to an input line which is connected to an analyzer for analyzing the sample gas. An output line is connected to the analyzer for discharging gas from the analyzer. An aspirator is used in the output line for drawing sample gas from the test space through the analyzer. For calibration, a second aspirator is provided in the input line for equalizing the flow in the input and the output lines to stop the flow of sample gas through the analyzer. After the flow is equalized and thus reduced to zero, a test gas is supplied to the input line at the same selected flow rate as the sample gas was supplied through the analyzer. The test gas is used for calibrating the analyzer.

Abstract: A device for simulating railcar shock during coupling of freight cars comprising an inclined ramp, a backboard at the bottom of the ramp, a dolly to roll down the ramp into the backboard, a disposable hollow cylinder to be temporarily attached to the backboard or the dolly to be crushed therebetween when the dolly rolls into the backboard.