Abstract: An improved means and method for shipping industrial sized quantities of hazardous concentrates which simplifies compliance with current environmental protection regulations. The method includes the steps of loading a collapsible shipping container with a collapsible bag which is partially filled with a liquid or particulate concentrate of a potentially hazardous material, collapsing the bag before inserting it into the shipping container. The container itself is then collapsed, sealed and shipped to the user. Upon arrival, the user erects the container, unfolds and fills the bag with a solvent such as water to fill the container and serve as a storage facility. The diluted or dissolved product is then drawn from the container as required until the container is empty. The user then collapses the bag and the container for return to the sender. As a result, no permanently installed storage facility need be cleaned.

Abstract: A method for sealing a retort container comprises the steps of heat-sealing an opening of a retort container after charging contents into the container so that a line-seal having a width ranging from 0.5 to 2.5 mm is formed to thus seal the container and then performing knurled sealing at a portion including the line-seal. The sealing method can provide a container having sufficient seal strength and does not spoil the beautiful appearance of the flange portion of the container even if contents thereof remain in the flanged portion or the like. Moreover, the method does not cause foaming in the sealed regions at all and it is not necessary to perform the sealing treatment under substantially severe conditions to prevent the occurrence of the foaming and, therefore, the method can provide containers having a sealed portion easily peelable.

Abstract: An oxygen-absorber accommodation parcel in which an air-impermeable material is superimposed on and peelably bonded to an air-permeable face of an air-permeable accommodation parcel which accommodates an oxygen-absorber compound. In the case of strip-formed continuous parcels in which accommodation parcels are connected side-by-side in one direction, a strip-formed air-impermeable material is bonded to the continuous parcels. During use, the air-impermeable material is peeled and removed from the strip-formed continuous parcels and, immediately thereafter, the strip-formed continuous parcels from which the air-impermeable material has been removed is cut along each connecting seal portion into individual oxygen-absorber accommodation parcels.

Abstract: A weighing-packaging-pricing apparatus has a roll supporting device to rotatably support a film roll, a film transporting device to pull a stretch film from this film roll and to transport a stretched film sheet to a packaging station, a weighing device for weighing and measuring the dimensions of an object on a tray to be packed while it travels to a lifter which lifts the object to the packaging station and pushes it against the stretched film sheet, and a folding device for folding edge sections of the film sheet to form a package. The folding device includes transversely moving plates for folding side edge sections of the film sheet, and the motion of these plates is controlled according to the size of the tray to be packaged.

Abstract: In a sugar-cane harvesting machine with a mobile machine base frame and a chopping mechanism (8), harvesting attachments which can be optionally fixed on the machine base frame are provided for adapting to different harvesting circumstances and terrain conditions, of which harvesting attachments one is designed for single-row harvesting and another for multi-row harvesting. The harvesting attachments contain row dividers (5, 6, 7), a mowing mechanism (23, 24, 25, 26) and a feeding mechanism (b 19, 20, 21, 41, 42). The multi-row harvesting attachment projects beyond the chopping mechanism (8) predominantly on one side so that symmetry is produced with respect to the running gear. In the uniform feeding space behind the mowing mechanism, the stream of material is laterally constricted and, specifically, preferably on one side.

Abstract: The header support linkage of a swather header on a support frame of a swather comprises a substantially vertical beam, an upper cross arm formed from a channel and a lower support cradle arm projecting outwardly from the bottom of the beam. A lower link projects from the frame forwardly to engage the lower part of the beam and is formed by an expandable cylinder to lift the header. An upper link extends from an upper part of the frame along the inside of the channel forming the upper arm. A cylinder extends from a lower part of the frame to a lever pivotally connected to the upper link providing a lost motion connection. An adjustable stop is provided between the upper link and the inside of the upper arm. A float spring is connected between an outer end of the upper arm and a vertically adjustable slide provided on the frame.

Abstract: A drive motion transmitting assembly is mounted to a mowing implement which also mounts a power drive source having a rotary output drive shaft and a reciprocatory sickle bar. The assembly include a motion converting member, a plurality of idler members, and a drive motion transmitting flexible arrangement. The motion converting member is rotatably mounted about an axis and is drivingly interconnected to the output drive shaft for rotating about the axis upon rotation of the output drive shaft. The motion converting member has a portion spaced from the axis which undergoes orbital movement about the axis as the motion converting member rotates about the axis. The idler members are rotatably mounted both adjacent to and remote from the sickle bar and the motion converting member and in spaced relation to one another for guiding the transmission of drive motion from the motion converting member to the sickle bar.

Abstract: Device for collecting or directly depositing cut grass for a lawnmower, mounted on the rear surface of a mower (2) and applied to the ejection channel (3) of this latter. The device has a removable bottom (4) detachably connected thereto, wherein after removal of the removable bottom (4) the device permits directly depositing the cut grass if collection is not desired. The removable bottom (4) is in the form of a rigid plate provided at one end with hooks (5) adapted to coact with a lower cross member (6) of the collecting apparatus and, at its other end, with a lock (7) for locking in closed position coacting with another lower transverse member (8) parallel to the first.

Abstract: A mower deck within which a blade coupled with a vertical shaft rotates for cutting vegetation. The deck includes a generally horizontal central portion, and side walls downwardly extending from the central portion. The central portion and side walls form a compartment within which the blade rotates to cut vegetation. A vertically extending and generally cylindrical portion is formed integral with the central portion for operatively supporting the vertical shaft for rotation during mowing operation. Two bearings are positioned within the cylindrical portion for rotatably supporting the vertical shaft. A radially inwardly extending portion is formed within the cylindrical portion and is positioned between the bearings for vertically locating the bearings within the cylinder. The inwardly extending portion is formed integral with the cylindrical portion. The radially inwardly extending portion includes a plurality of vertically extending support ribs for vertically locating the bearings within the cylinder.

Abstract: A suction and cooling system for a spinning frame having a plurality of spinning units arranged along a frame. The suction and cooling system includes a first collecting channel and an independent second collecting channel and exhaust means coupled to the first collecting channel and exhaust means coupled to the second collecting channel. The first exhaust means draw a first air stream into the first collecting channel from primarily the area around the drafting system of the spinning units. The first air stream comprises primarily reusable fibers and a filter may be provided for filtering out the reusable fibers. The second exhaust means draws an independent second air stream from primarily the area around the thread guiding device of the spinning units and from around the spindle drive means, thereby serving the dual function of collecting waste fly and cooling the spindle drive means. A second filter device may be provided in the second collecting channel for removing generally waste fiber fly material.

Abstract: A process and a device for the air-conditioning of spinning material located in a container. The spinning material is air-conditioned for processing in a spinning machine which is essentially surrounded by any room climate. The spinning material is exposed in the container to a climate which is independent of the room climate. This causes, at least, the spinning material to be taken next out of the container to be air-conditioned in such manner that it is in an optimal climatic state for such further processing. Outlet openings of at least one air-conditioning duct or an air-conditioning plant are located on the container so that an air-conditioned fluid flows out of the outlet openings on at least the spinning material to be taken out next and the spinning material is in an optimal climatic state for further processing as it is then processed further.

Abstract: In an arrangement for pneumatic false-twist spinning having a drafting unit, a pneumatic false-twisting device which follows and a withdrawal device which follows, it is provided that a roller of the pair of delivery rollers is constructed as a hollow roller which has an air-permeable shell surface. In addition, a suction roller is provided between the pair of delivery rollers and the false-twisting device.

Abstract: A push-pull chain having a lock mechanism provided between inner links and outer links, which are rotatably coupled together by link pins, to thereby permit the mutual pivotal movement of both links to be restricted. The lock mechanism is provided to both links on an axial line parallel to each link pin. As a lock pin moves parallel on the axial line and it is fitted in both links, the mutual pivotal movement of the links is locked.

Abstract: A guide chain for guiding energy lines from a stationary connection to a movable consuming device is comprised of a plurality of chain members being pivotably connected to one another. Each of the chain members is comprised of two side portions arranged at a distance parallel to one another. Two transverse elements connect the two side portions with one another. In order to open the guide chain at its upper side on either side of the side portions for providing access to the energy line channel, the two side portions are provided with a pivot joint which is comprised of a lug element extending in the longitudinal direction of the side portion and a holding member which is detachably connected to the lug element, the transverse element being connected to the two holding members.

Abstract: Cooling air to the 1-2 turbine stage seal is supplied in parallel with air to the second vane surface from a plenum. A modulatable valve in the supply line to the plenum regulates air flow in response to a sensed temperature in the 1-2 seal area. A thermocouple is located in a bypass around a portion of the seal, being radially installed through a hollow vane and an opening in the seal shroud.

Abstract: A pod for a very high bypass ratio turbofan engine unit of the forward contrafan type suspended from a suspension mast under the wing of an aircraft comprises a generally cylindrical inner cowling surrounding the casing of the jet engine unit and a generally cylndrical outer cowling spaced outwardly of the inner cowling and defining therebetween the cold flow path in which the contrarotating fan propellers are located, the outer cowling being divided into three parts consisting of an openable forward casing surrounding the fan propellers and connected to the suspension mast, an intermediate casing rigidly connected to the engine casing by radial flow straightener arms disposed in the cold flow path to the rear of the fan propellers, and an openable rearward casing also connected to the suspension mast. The engine unit is attached to the suspension mast by first attachment means carried on top of the intermediate casing, and second attachment means provided on the rear part of the engine casing.

Abstract: A method and apparatus for suppressing jet noise in a gas turbine engine powerplant 10 is disclosed. Various construction details are developed for providing sound suppression at sea level take-off operative conditions and not providing sound suppression at cruise operative conditions. In one embodiment, the powerplant 10 has a lobed mixer 152 between a primary flowpath 44 and a second flowpath 46, a diffusion region downstream of the lobed mixer region (first mixing region 76), and a deployable ejector/mixer 176 in the diffusion region which forms a second mixing region 78 having a diffusion flowpath 72 downstream of the ejector/mixer and sound absorbing structure 18 bounding the flowpath throughout the diffusion region. The method includes deploying the ejector/mixer 176 at take-off and stowing the ejector/mixer at cruise.

Abstract: A turbofan engine uses fan air to cool bounding surfaces of the exhaust duct at all times. A portion of the fan air flow is used for augmentor combustion in the augmentation mode. In the non-augmented mode the flow for combustion is stopped and the cooling air is used to cool the tail cone and exit guide vanes. Infrared radiation is thereby reduced when non-augmented.

Abstract: A compensating device for the temperature in front of the high pressure turbine of a compound turboshaft aero-engine which is regulated to a designated constant temperature behind the low pressure turbine is provided with a function generator which supplies a correction value signal for the designated temperature as a function of the rotational speed of the low pressure turbine and of the actual temperature at the outlet of the said turbine. The device is activated as soon as the rotational speed of the high pressure turbine goes below 80% of its maximum rated speed and is operative to apply the correction value signal to the designated temperature for a predetermined time as soon as the rotational speed of the high pressure turbine goes above 90% of its maximum rated speed while the device is activated.

Abstract: An on-board catalytic converter efficiency monitoring system uses an exhaust gas oxygen sensor downstream of a converter to enable closed loop air-fuel ratio control. The period of the air-fuel limit cycle is used to determine a time constant parameter of the feedback loop. A parameter in the fuel controller is changed to induce another air-fuel limit cycle frequency. The period of this new air-fuel limit cycle provides additional information with respect to the time constant of the feedback loop. Because it is possible to make other changes to the parameters of the fuel controller, different frequencies can be induced and additional parameters of the feedback loop time constant can be determined. With n different frequencies produced by n different fuel controller parameters it is possible to solve for n different time constants. The system can be used with either one or two EGO sensors depending upon the desired parameter to be solved.

Abstract: An air-fuel ratio controlling apparatus for an internal combustion engine carries out air-fuel ratio feedback control with use of oxygen sensors, which are disposed on the upstream and downstream sides of a three-way catalytic converter respectively. A correction target value for a rich/lean balance of the feedback control carried out based on the output of the upstream oxygen sensor is corrected according to the output of the downstream oxygen sensor. A control quantity for the feedback control is corrected to reduce a difference between the correction target value and an actual value. This arrangement compensates a shift of an air-fuel ratio control point due to a change in the output characteristics of the upstream oxygen sensor, prevents an excessive deviation of an air-fuel ratio, and maintains an exhaust gas at a preferable level.

Abstract: The invention provides a method for accurately and precisely measuring a converted rate of a catalyst for HC/CO/NOx, NOx, and HC/CO and detecting deterioration using two air/fuel ratio sensors disposed on the upstream and downstream sides of the catalyst. The converted rate of the catalyst is determined based on a predetermined relationship between the mean converted rate and a reduction ratio of output amplitudes of the downstream sensor to the upstream sensor. The catalyst is determined to be deteriorating when the reduction ratio becomes less than a predetermined value.

Abstract: The invention is a device for generating utilizable energy from potential energy of slowly driving motor vehicles such as street traffic. The device comprises at least one rigid pivoted plate supported on a bearing block. The plate can be lowered by the force of gravity of a motor vehicle such that air is urged out of flexible containers and directed into a pressure equalizing reservoir connected to a turbine or a hydraulic motor. Storage containers for water are supported on both sides of the bearing block on the pivoted plate. The filling of the storage containers is controlled in a manner such that the storage container is exactly filled at the right moment so that it assists in lowering the plate caused by the motor vehicle.

Abstract: A turbo supercharging system for an internal-combustion engine having controllable plural charge air compressors wherein the charge air compressors are in a permanent driving connection with an exhaust gas turbine during all operating times of the internal-combustion engine. The control of charging air is by switching the flow through the compressors; wherein at engine idle, flow is through a low capacity compressor and a high capacity compressor, exhausts to atmosphere; wherein at an intermediate partial load condition where flow is through the high capacity compressor and the low capacity compressor exhausts to atmosphere; wherein at a full load condition the compressors are serially connected together to feed the internal-combustion engine.

Abstract: This invention relates to a closed-loop, multi-stage compression refrigeration system which uses a multi-component refrigerant wherein the compressed refrigerant is partially condensed, and the vapor and liquid streams are separated in a primary separator. The liquid stream passes through several expansion stages, providing a refrigeration duty at each stage. That portion of the refrigerant which is vaporized is recycled to an intermediate stage of the multi-stage compressor. The vapor from the primary separator, which is rich in the light component, is condensed and expanded to the lowest stage of refrigeration, providing maximum refrigeration duty for a given refrigerant composition and compressor suction pressure.

Abstract: The incoming compressed air is partly expanded in a high pressure turbine, after which a portion of the expanded air is again expanded in a low pressure turbine. The inlet temperature of the latter is clearly higher than that of the high pressure turbine. Application to the production of liquid nitrogen and liquid oxygen.

Abstract: As soon as the apparatus is started, a flow of liquid nitrogen which is at least equal to the nominal flow of gaseous nitrogen is introduced in the head portion of the column, then the flow of liquid nitrogen is adjusted to a small fraction of this nominal flow. Application to the production of a flow of gaseous nitrogen which is variable and moderate.

Abstract: A cryogenic vacuum pump includes, in an integral assembly, temperature sensors and heaters associated with the first and second stages of the cryopumping array, a roughing valve and a purge valve. An electronic module removably coupled in the assembly responds to all sensors and controls all operations of the cryopump including regeneration thereof. System parameters are stored in a nonvolatile memory in the module. Included in the regeneration procedures are an auto-zero of the pressure gauge, heating of the array throughout rough pumping, and a change in pressure rate test to determine stall in rough pumping. The electronic module also restarts the system after power failure, limits use of a pressure gauge to safe conditions, provides warnings before allowing opening of the valves while the cryopump is operating and stores sensor calibration information. Control through a control pad on the pump may be limited by a password requirement. Password override is also provided.

Abstract: An improved process for creating clear ice products and ice products with patterns. Purified water placed in a container having an inlet is deoxygenated by at least 20% by the use of a vacuum through the inlet. The container is then either sealed to prevent the reintroduction of the oxygen into the water or the water is frozen in a ice cube tray on a plate evaporator between -20.degree. and 30.degree. F. The variations in the water temperature at the time the vacuum is applied and when the water is placed in the freezer effect the patterns obtained in the ice products.

Abstract: An organ preservation apparatus including an organ-receiving chamber, a pulsatile pump in continuous uninterrupted liquid communication with the organ-receiving chamber, and a fluid delivery tube interconnected between the organ-receiving chamber and the pulsatile pump for passing the organ preservation fluid from the organ-receiving chamber to the pulsatile pump. The pulsatile pump is configured to pass an organ preservation fluid to the organ-receiving chamber in a dichrotic pulse pattern. The organ-receiving chamber has an outer box with an insulated interior area, an organ-receiving cassette removably contained within the insulated interior area, and a lid detachably fastened to the outer box. The pulsatile pump includes a bladder pump, a motor, and a cam connected to the motor. The cam is connected to an actuator so as to compress the bladder pump is a dichrotic pulse pattern.

Abstract: A refrigeration system is disclosed which utilizes an expansion engine in the condensate line of the condenser. The liquid leaving the condenser drives the expansion engine when it passes therethrough. The expansion engine, in turn, drives a compressor which compresses gas from the reservoir to the condenser. The discharge of the liquid refrigerant from the condenser is controlled by a micro-controller circuit. The micro-controller circuit increases the flow when the temperature difference between the liquid refrigerant and the ambient air flowing across the condenser is below a predetermined value and decreases the flow when the temperature difference is above a predetermined value. A liquid pump is used to elevate the pressure of the liquid refrigerant leaving the receiver.

Abstract: An automatic air conditioner for a vehicle comprising a cooling unit, heater and a blower fan which are controlled by a control circuit. The air conditioner is arranged to adjust a compartment temperature to a target value set by a target value setting means. Furthermore, the air conditioner has functions such as a quick cooling, a quick heating and a low water-temperature drive control to quickly adjust the compartment temperature to the target value. The air conditioner further includes a function wherein the change of the preset target value is forbidden in operation of the quick cooling, the quick heating and the low water-temperature drive controls to prevent the compartment from being over-cooled or over-heated by the change of the target value in the operation.

Abstract: A transport refrigeration system of the type which holds a set point by operating in heating and cooling cycles. The system includes a compressor, a condenser and an evaporator each having inlet and outlet ports. A three-way valve receives compressed gas discharged from the compressor and directs it selectively to first and second outlets. First outlet of the three-way valve directs hot compressor gas to the condenser for operation of the system in a conventional cooling cycle. A hot gas conduit is provided which connects the second outlet of the three-way valve directly to the inlet of the evaporator. A branch line extends from the hot gas line to the line interconnecting the condenser and the evaporator, upstream of the receiver. Another refrigerant line extends from the outlet of the condenser to establish fluid communication with the line interconnecting the outlet of the evaporator with the compressor suction port.

Abstract: A valve controller which controls the opening degree of an electrically driven expansion valve mounted in the refrigerating cycle, in accordance with a difference between a refrigerant saturation temperature of an outdoor heat exchanger detected with a first temperature sensor and a refrigerant temperature at the suction port of a compressor detected with a second temperature sensor. A sensor error correcting unit is provided whereby a detected temperature error is calculated in accordance with the outputs of the first and second temperature sensors exposed in an atmospheric air having a specific temperature, and in accordance with the detected temperature error, a difference between the refrigerant saturation temperature and the refrigerant temperature at the suction port of the compressor is corrected.

Abstract: This invention provides a full flow vaporizer for use in a refrigeration system (which may be part of a heat pump) employing hot gas from the compressor to periodically defrost the cooling coil or coils. The vaporizer usually consists of three concentric circular cross-section tubes, the innermost tube receiving the fluid from the coil and being divided about midway along its length by a disc transverse barrier into first and third chambers. The cylindrical wall of the first chamber is provided with a plurality of holes directing the fluid forcefully radially outwards into a second chamber between the innermost and middle tubes and against the inner wall of the middle tube, which is heated by hot refrigerant gas passing in a fourth chamber between the middle and outermost tubes, the fluid then passing from the second chamber into the third chamber through a similar plurality of holes in the innermost tube cylindrical wall.

Abstract: A high capacity refrigerant apparatus is made up of a heat exchanger which receives refrigerant from the system to be drained in heat exchange relation to a coolant from a vapor compressor circuit, and a liquid pump discharges the refrigerant from the heat exchanger so long as the liquid refrigerant in the heat exchanger remains at a particular level; otherwise, the refrigerant is drawn through a second vapor compressor circuit and completely condensed prior to discharge. In a modified form, a lower capacity refrigerant reclamation apparatus, a reciculating coolant tube vaporizes a limited amount of refrigerant and returns it back through the heat exchanger so as not to require a separate vapor compressor system for the heat exchange cooling medium.

Abstract: An adsorptional heat pump for using as a cooler or a heater which comprises a pair of rotary module discs and plurality of thermosyphons. The rotary module discs comprise a plurality of modules of which each of two modules are positioned in order to be opposite with each other. The thermosyphon is positioned between the two opposite modules, so that both ends thereof are respectively inserted into corresponding modules and has a good heat transferring feature, so that the thermosyphon provides an internal heat exchange between the modules. The heat pump according to the invention repeatedly and periodically carries out consequent processes such as generation. .fwdarw.heat exchange.fwdarw.adsorption.fwdarw.heat exchange.fwdarw.generation. The present invention can provide a heat pump having a promoted efficiency.

Abstract: A three-stage sorption type cryogenic refrigeration system, each stage containing a fluid having a respectively different boiling point. Each stage includes a compressor in which a respective fluid is heated to be placed in a high pressure gaseous state. The compressor for that fluid which is heated to the highest temperature is enclosed by the other two compressors to permit heat to be transferred from the inner compressor to the surrounding compressors. The system may include two sets of compressors, each having the structure described above, with the interior compressors of the two sets coupled together to permit selective heat transfer therebetween, resulting in more efficient utilization of input power.

Abstract: Apparatus for continuous production of flake ice comprises one or more refrigerated discs mounted on a hollow shaft. Each disc rotates in the vertical plane and includes a plurality of narrow internal channels which extend substantially over all of the operative portion of the disc and are of substantially equal length. The discs form the evaporator of a refrigeration circuit, and an evaporative refrigerant is circulated to the channels in each disc via the hollow shaft. During each cycle, water is applied to both external flat surfaces of each disc at a first angular location and the film of water which adheres thereto freezes as the disc rotates. The ice sheet so formed is removed from both sides of the disc at a second angular location by scraper blades.

Abstract: A refrigerator, freezer or the like comprises a cabinet (1), a pump (6) for producing vacuum and, in a refrigeration compartment (10) thereof, a container (17) closable in a vacuum-tight manner and able to be moved within said compartment (10), said container (17) comprising a lid (19) guided to open and close during its movement by elements (40) associated with said lid (19), which moves in guide tracks (41) provided in opposing walls (16) of said compartment (10) or in elements (42) associated with said walls (16), there being provided on said lid (19) mobile members (48) associated with pins (46, 50) acting as hinges about which, during the movement of said lid (19), said members (48) rotate under the action of a thrust exerted by pusher means (51), said movement taking (48), during their rotation about said pins (46, 50), exceed an equilibrium position beyond which the pusher means (51) act to provide independent guided movement of said lid (19).

Abstract: A tube and fin-type evaporator is provided for a refrigerator having trapezoidally shaped fins with the wider portion of the fins disposed upstream in the cooling air flow path through the evaporator. The refrigerant tube passes through at least two rows of openings in these fins, and those openings are staggered and of different length to enhance turbulence and reduce tube shielding within the cooling air flow. Projections (dimples) on the fins adjacent the downstream side of each opening are provided to reduce dead air space downstream from the tube. Further, the openings are provided with collars to increase heat transfer between the fins and the tube. These projections and collars also serve to increase rigidity of the fins. The present invention enables the use of relatively small diameter, thin walled refrigerant tubes within the evaporator. Also, the tubes can be hydraulically expanded within the fins to enhance fin to tube contact and decrease heat transfer resistance.

Abstract: An improved regenerative absorption refrigeration cycle having a high COP and a commercially practicable pumping system. In the basic cycle, an ammonia/water solution is boiled in an externally-heated generator (11). The boiled-off ammonia vapor is cooled (14) in a regenerator (16), condensed (28), expanded to low pressure (32), and boiled in an evaporator (34) to extract heat from fluid circulating to and from a cooling load (41). The low-pressure liquid ammonia returns (46) to the regenerator (16) and is absorbed back into the low-pressure water from the generator. The solution is then cooled in a low-pressure absorber (50), pumped (53) to a high-pressure conduit (57) which is heated by the regenerator heat before going back to the generator 11. The improved cycle uses at least one intermediate absorber stage 60 to absorb more ammonia vapor (69, 71) into the solution coming from the lower pressure absorber (50) to produce a cooled solution of higher ammonia concentration.

Abstract: A heat transfer arrangement for a refrigeration circuit is described. In one embodiment and for a refrigeration circuit including compressor means, a plurality of evaporator means coupled to the compressor means, one of the evaporator means being arranged to operate at a temperature lower than the operating temperature of the other evaporator means, the present heat transfer arrangement comprises a first conduit means coupled to the outlet of the one evaporator means, the first conduit means being at least partially disposed in a heat transfer arrangement with at least a portion of a second conduit means coupled to the inlet of the one evaporator means.

Abstract: Inefficiency in heat exchange in an evaporator for a refrigeration system due to maldistribution of incoming refrigerant may be reduced in a structure wherein a plurality of hydraulically parallel flow paths are defined by tubes (20) having ends (84) in the interior of a header (10). Refrigerant inlets (70, 72) are provided for the header (10) at opposite ends (62, 64) thereof to generate streams (78, 80) of incoming refrigerant which impinge upon one another to dissipate the kinetic energy and/or momentum of the streams (78 and 80) which in turn results in an improved distribution of the refrigerant within the header (10). Refrigerant outlets are provided for a header. The outlets are at opposite ends thereof to generate two streams of outgoing refrigerant which reduces outlet resistance and thus provides for more uniform flow of the refrigerant.

Abstract: A heart shaped piece of jewelry is provided attachable to a chain. The body of the heart shape is in two parts separated along a jagged simulated broken line with guide members allowing the parts to be separated sliding along the guide members to simulate a break. A spring urges the parts to mate and a cam on the end of a member forces the parts to the separated condition by twisting the member followed by further twisting to close and re-mate the heart shape.

Abstract: A cylindrically knitted fabric is produced in a knitting region adjacent to the top of a needle cylinder of a knitting machine. The knitted fabric is guided downward around a conical nozzle and fed downward in a twisting-preventive guide cylinder rotating in synchronism with the needle cylinder. Air is ejected downward from air openings around the conical nozzle so that the knitted fabric is moved downward. Air is ejected downward from the nozzle into the cylindrical knitted fabric, which is thereby pressed against the inner surface of the guide cylinder. Upon being thus delivered from the bottom of the guide cylinder without contamination and twist, the knitted fabric is received on a conical gripper and is then conveyed by a pickup mechanism to a next processing step for producing socks, panty hose or tights.

Abstract: A valve device takes the form of a multi-part cartridge with a hollow stepped housing containing a stepped rod. A control piston at one end of the rod is opposed by the force of a main spring in a main chamber remote from the control piston. A valve closure member is axially displaceable relative to the rod. The valve closure member is normally held against a valve seating but pressure on the control piston displaces the rod and causes the valve closure member to be lifted from its seating via stop faces. An auxiliary chamber in the housing leads via a connection to some consumer appliance and forms, the downstream side of the valve. A compensating piston on the rod member opposes a face of the valve closure member open to the auxiliary chamber. A further spring in the auxiliary chamber holds the valve closure member on its seating. The valve can open independently of the control piston should the pressure on the upstream side of the valve exceed the consumer pressure.

Abstract: An apparatus for winding into a roll a knitted fabric produced in a circular knitting machine and for conveying the roll to the outside of the knitting machine. A knitted fabric hangs below the knitting machine and is wound around a pair of horizontally aligned takeup shafts that are shiftable away from each other and toward each other until they are thrust against each other. At the start of the winding operation, the takeup shafts are shifted toward each other, and when the shafts approach positions to leave a gap between inner gripping ends of these shafts, a knitted fabric insertion link mechanism provided alongside the takeup shafts is extended toward the gap, and a fabric thrust arm on a distal end of the link mechanism pushes and insert a portion of the lower starting end of the hanging fabric into the gap. Thereafter the gap is closed so that the lower starting end of the fabric is firmly gripped between the gripping ends to enable start of the winding operation.

Abstract: A fabric take-up unit (5) is supported beneath the needle cylinder (4a) to rotate synchronously therewith and knitted fabric delivery rolls (11, 12, 13) are supported on the fabric take-up unit (5). The fabric delivery rolls (11, 12, 13) are normally driven in response to rotation of the take-up unit (5). In contrast to this normal drive, the knitted fabric delivery rolls (11, 12, 13) are driven by a planetary gear system including a sun gear (17) supported for rotation on the machine frame, a planet gear (18) meshing with the sun gear (17) and being supported on the take-up unit (5). The planet gear (18) is drivingly connected to the fabric delivery rolls (11, 12, 13).

Abstract: A window lock for securing a first window member against unauthorized movement relative to a second window member, the window lock including a bolt mounted for sliding movement in a drum journaled for rotation on a hub throughout an arc of rotation, the hub being affixed to the first window member and the bolt carrying a key and a latch engaged with a cavity in a housing affixed to the second window member throughout the arc of rotation of the drum when the bolt is advanced, the hub having a recess oriented for receiving the key of the bolt only when the bolt is located at a predetermined angular position within the arc of rotation where the key is registered with the recess to permit retraction of the bolt and corresponding retraction of the latch from the cavity, the orientation of the recess being masked from unauthorized view such that visual verification of the predetermined angular position of the bolt is restricted to an authorized operator.