Abstract: An ice-making heat pump system is disclosed which includes a number of evaporator freezing plates, each of the plates having two fluid passageways therein. One of the passageways is arranged to conduct boiling refrigerant fluid for freezing water on the surfaces of the plate. The other passageway is arranged to conduct warm condensed refrigerant for harvesting ice formed on the plate surface. A fluid valve arrangement is also provided to connect the plates with the rest of the system so that ice can be selectively formed and released from the outer surfaces of the freezing plates.

Abstract: The present invention relates to a split system air conditioner and more particularly to the indoor section which is provided with a refrigerant flow valve bypass arrangement that permits multiple orientation of the indoor section.

Abstract: An air cooling system having a rotary assembly within a non-circular chamber wherein compression and expansion used in a modified reverse Brayton cycle are provided within the same chamber by the change in volume brought about by vanes sliding within slots in the rotor. Air is supplied to the compressor portion of the chamber from an air-to-air heat exchanger which receives cooled air from the expander. A transfer passage is provided between the output of the compressor and the inlet of the expander. A liquid cooled heat exchanger is provided adjacent the compressor. A second liquid cooled heat exchanger is provided around the transfer passage. Coolant is supplied to the liquid cooled heat exchangers from a radiator.

Abstract: A gas cycle cooling system having a rotary compressor and expander driven by a common shaft wherein the compression and expansion of a modified reverse Brayton cycle is provided within a closed chamber by changes in volume brought about by vanes sliding within slots in a rotor. The rotor is positioned within the chamber to provide spaces between the rotor and the chamber wall which act as effective gas transfer passages between the compressor and the expander. Liquid from a first heat exchanger is circulated through the wall of the rotor housing adjacent the compressor portion of the chamber to remove heat during the compressor phase of the cycle. Liquid is circulated through the wall of the rotor housing adjacent the expander portion of the chamber to provide cooling for a second heat exchanger.

Abstract: An air conditioning system for vehicles having a reverse Brayton cycle cooling system with a turbine drive for the rotor in the reverse Brayton cycle cooling system. A binary working fluid is used in the air conditioning system with air used in the reverse Brayton cycle cooling system. Waste heat is used to provide superheated water vapor for driving the turbine with the turbine return supplied to the air flow at the outlet of the compressor of the cooling system. The combined working fluid is supplied to a heat rejection heat exchanger where the excess water vapor is condensed and returned to the waste heat recovery system.

Abstract: In a refrigerant system having a liquid trapping suction accumulator between the evaporator exit and the compressor entrance and a very short bore capillary as an expansion tube to replace the thermostatic expansion valve, a recirculating ejector is added to recirculate any liquid that may be trapped by the accumulator back into the evaporator inlet where it can be used to provide desired refrigerating effect without requiring additional work in the compressor. The expansion tube is positioned so that it functions as the primary nozzle of the ejector. Thus the high-pressure liquid refrigerant being expanded through the expansion tube becomes the prime mover that is needed to drive the liquid from the accumulator into the evaporator. Because the high-pressure liquid refrigerant must be expanded to the relatively lower evaporator pressure in any vapor cycle refrigeration system, the recirculating function is accomplished without using additional energy or penalizing system capacity.

Abstract: A two-part ear ornament clip including front and back parts which are pivotally connected together. The front and back parts are so dimensioned and connected together that, in the open condition of the clip, handling and application of the clip by the wearer to her ear lobe is greatly facilitated. The front and back parts, when disposed in their ear lobe gripping positions relative to each other, are such that the portion of the front part to which an ornament would be secured is directly opposite the portion of the back part which is in contact with the inside face of the ear lobe.

Abstract: A design for a jewel mounting structure employing a moveable setting. A jewel or other stone to be exhibited is set upon a mounting sleeve which is adapted to slideably move along a curved guide surface having a predetermined radius of curvature. A connector depends radially inwardly from the sleeve and is journeled about a shaft which lies at the center of curvature of the guide surface. Affixed to the journaling element opposite the connector and sleeve is a weighted enclosure which will cause the sleeve to rotate about the shaft until gravitational forces maintain the weighted enclosure at the lowest point of its circular arc. The jewel or other stone being exhibited will be capable of slideably moving across the guide surface but will tend to be maintained at a location based upon the positional relationship of the weighted enclosure.

Abstract: A coupling device for torque transmission in non-aligned shafts. Mating splined halves having engaging teeth and a spherical surface at the interface thereof to accommodate misalignment of interconnected shafts. The halves are maintained in engagement by a nut and bolt longitudinally extending through the halves with a spring washer.

Abstract: A universal joint is provided for transmitting torque from one shaft to another, and more specifically for use with shafts where angular misalignment is not excessive. Basically, the universal joint has at least two members connected to two shafts which tend to be angularly misaligned, with each member having at least two extremities extending transversely outwardly beyond the corresponding shaft. The extremities have projections extending toward one another and flexible bridging strips are connected between the projections of the members, the strips lying substantially in a plane which is parallel to the planes in which the members rotate when the shafts are aligned. The flexible strips comprise multiplicities of substantially parallel fibers extending the lengths of the strips and are effective in tension to transmit torque from one of the shafts to the other.

Abstract: An improved latch guard having a forwardly extending deflector arm integrally associated therewith. When the improved latch guard is incorporated into a deep pile fabric circular knitting machine, the deflector arm eliminates the problem of stray fiber build-up on the front edge of prior art latch guards during operation of such knitting machine.

Abstract: A laundry dryer source of heat for providing warm gas to dry laundry is utilized to heat water for laundry washers use, and is particularly suited for coin operated laundries. In the illustrated embodiment each dryer has a gas burner and a water coil is in the flame area of the burner, the coils being connected in circuit between a cool water outlet and a heated water inlet of a typical automatic water heater tank. A pump circulates cool water from the tank through coils and returns heated water from the coils to the tank whenever any of the dryers are in operation. Since most laundry is promptly placed in a dryer after washing, during high or low capacity operation of the laundry, the quantity of heated water is automatically regulated by dryer operation to the overall demand for hot water by the washers, the automatic water heater tank providing heated water during sudden surges in washer operation before the dryers are in operation sufficiently to supply the hot water.

Abstract: A locking device used to lock a trailer towing mirror to a vehicle is disclosed. The trailer towing mirror is of the type which is mounted between the seam bisecting the hood and fender of the vehicle and the edge of the wheel well of a fender of the vehicle and has a plurality of supports which connect to the vehicle and which connect to each other and are fixed in relationship with respect to one another by at least one turnbuckle. The locking device includes an elongated member having a first end and a second end and is formed of a material substantially resistant to sundering. In the first end of the member is a first hole of sufficient dimension to fit over one of the supports and in the second end of the member is a second hole of sufficient dimension to allow a shank of a lock to pass through the second hole.

Abstract: A container in the form of a flat envelope, open at one end for insertion and removal of a slide, has a series of locking keys shiftable laterally to left or right from a normal, centered, rest position. When all the keys have been shifted in predetermined directions to positions representing a pre-set combination, the slide is freed for partial removal from the envelope, to an unlocking position that permits the object to be removed or in some cases to gravitate freely from the envelope. The device can be made inexpensively of injection molded plastic or plastic-coated cardboard, cheaply enough to allow it to be made as a single-use, disposable article.

Abstract: A vault door lock of a combination type that operates on fluid pressure. The locking system has a master control valve assembly mounted on the rear face of the vault door and operatively associated with variously positionable dials mounted on the front face of the door and reciprocally mounted actuators which pass therethrough. A slave valve mounted on the rear face of the vault door is operated on command from the master control valve. A plurality of locking members are movably mounted on the vault door from one to another of a locking and unlocking position and coupled to the pistons of a piston cylinder assembly for moving the same. The master control valve consists of a plurality of operatively interrelated valves designed to provide an output that actuates the slave valve when such interrelated valves are actuated in a predetermined sequence. An alarm trigger is actuated by the master control valve when the operatively interrelated valves are actuated in a sequence other than the predetermined sequence.

Abstract: There is disclosed a Bramah lock suitable for use on a safe-deposit box or an armored door in which the bolt of the locking mechanism is actuatable by bars which are disposed in serially arranged sets extending through the door to a keyhole and co-operable by abutment so that displacements of the bars relatively adjacent to the keyhole are not transmitted to bars relatively remote therefrom. An externally toothed gear coaxially of the barrel is operatively disposed between the barrel and the bolt for controlling the operation of the latter. There are a plurality of toothed sector members with slots in engagement with a fence plate when they are in alignment, the fence plate being driven by a check fence plate resiliently connected thereto and displaceable in response to the barrel motion so as to permit rotation of the barrel even if the fence member is not in engagement with the slots in the sector members.

Abstract: An antitheft guard for an ignition switch comprises a housing adapted to overlie the ignition switch, the housing comprising a cylindrical cup-like section closed at one end and shaped at the periphery of the open end to conform generally to the contour of the steering column. The housing is held in place by hinged arcuate sections adapted to encircle the steering column. The arcuate sections and the periphery of the cup-like section may be padded to prevent marring of the steering column. A portion of the housing and one of the arcuate sections cooperate to permit a padlock to retain the assembly securely in place on the steering column.

Abstract: This disclosure relates to a process for the regulation of the thickness of a flat product such as a strip, sheet or plate, being rolled in a hot tandem rolling mill, and the corresponding regulation device for carrying out the process. Regarding each stand of the rolling mill on which the adjustment is being performed, a constant rolling pressure is maintained, the gap is measured, the deviation between the measured gap and a set value corresponding to a desired thickness of the product is determined, and the necessary correction of the value of the tensile force applied on the product between the stand under consideration and the upstream stand in order to bring the gap back to its set value is determined. Finally, this correction of the tensile force between the stand under consideration and the upstream stand is performed.

Abstract: A hand-tool housing a pneumatic and a hydraulic piston joined together with a common piston rod, and separated into an air chamber and a hydraulic chamber by a stationary divider through which the piston rod is sealed for free movement is used as a pulling device. Compressed air moves the puller to a starting position, and an air powered hydraulic unit supplies hydraulic pressure to effect the pulling cycle. Sequencing of the complete pulling cycle is controlled by a trigger actuated air valve mounted in the hand tool.

Abstract: A hollow spherical article having at least two substantially diametrically opposed apertures in the spherical surface, said article being of wrought metal and having been moulded by explosive forming. The article may further comprise at least two cylindrical portions, said portions being located on the spherical surface and defining said apertures. The method of forming the hollow spherical article comprises placing a tube of wrought metal into a die, positioning a plurality of explosive charges within the tube and detonating the explosive charges to expand the tube to form said hollow spherical article having two cylindrical portions which may subsequently be removed by machining.

Abstract: Metal strip is slit by passage between a pair of rollers which are flanged and mate together in close tolerance interfitting relationship to completely contain and confine the strip cross section. The rollers compressively work the full width of the strip, thereby significantly reducing its thickness. The working portions of each of the rolls have at least two neighboring roll surfaces which are offset in a direction radially with respect to their axes of rotation, i.e., in a "stepped" relationship, the amount of offset being sufficiently great for simultaneously separating the strip into at least two resultant substrips while the thickness of the substrips is being significantly reduced. Both edges of each of the resultant substrips have an attractively polished appearance without sharpness or burr, and the substrips are produced without camber.

Abstract: A method of manufacturing a high fin density heat dissipator is disclosed in which the dissipator is extruded through a die in a partially cylindrical shape with the elongated fins arranged on the base and extending radially therefrom. The extruded dissipator is straightened under tensile and bumping forces in a manner such that the base assumes a planar shape and the fins become substantially parallel to each other. Apparatus for straightening the extruded dissipator and a die for extruding the same are illustrated and described.

Abstract: A hemostatic clip applicator is provided with a locking mechanism preventing the accidental release of the clip before its application to a blood vessel. The locking mechanism includes a locking bar dimensioned to pass into aligned slots to prevent opening of the jaws beyond a selected distance.

Abstract: A quick chucking die holder device for forging presses comprises an upper and a lower die holder and two adapter plates with dies fastened therein. Centering gibs are provided for centering the adapter plates within the die holders and spring loaded wedges make the chucking connection. The wedges may be controlled by means of hydraulic cylinders, or in a modified form, by the proper ram movement thereby movement of the ram is caused to release, or to clamp, the adapter plates.

Abstract: A surface friction tester in the form of a friction sled which may be pulled over a surface to determine the coefficient of friction of that surface. The sled has a friction surface characterizing a vehicle tire tread attached to the bottom of a base plate. The base plate is a part of a sled frame which also has a tongue portion. A straight spring scale attached to the tongue is used to measure the force required to pull the sled over the surface. The friction sled is especially adapted for accident investigations in order to allow the investigator to determine the coefficient of friction of the surfaces upon which skid marks exist and, thus, calculate the vehicle velocity at the time of brake locking on the basis of the skid marks left by the sliding vehicle.

Abstract: A back pressure fluid gaging circuit for measuring dimensions of a workpiece. The gaging circuit (100) includes gage tooling (190) including at least one fluid jet (192) disposed to be directed at a surface (210) of the workpiece (200), with variations in the distance between the surface (210) and the tooling (190) providing a varying back pressure of the fluid which is measured by a gage (150) located intermediate the length of a conduit (170) connecting a source (110) of fluid under pressure with the tooling (190). First and second adjustable (variable) fluid passage restrictions (130, 140) in the conduit (170, are adjusted to provide an output within a range that can be displayed by the gage (150) for the particular tooling selected. One of the adjustable restrictions (130) is located along the conduit between the source (110) of pressurized fluid and the gage (150) and the other restrictions (140) between the gage (150) and the tooling (190).

Abstract: A condenser leak searching plug having a tapered body, a recess extending into the body from the larger end face thereof, a resiliently yieldable, non-protruding planar membrane covering and sealing the open side of the recess where the membrane forms the central part of a cap of elastic material which fits over the larger end of the body and a through duct extending from the recess to the smaller end face of the body.

Abstract: A product having primary and secondary air chambers is tested for leaks by pressurizing such chambers to substantially different pressures from a common supply air source. Subsequent to charging the chambers to the predetermined pressures, any air flow occurring from the supply air source is indicative of a product leak. Secondary air is supplied to the product secondary air chamber through an electrically operated valve provided with signals by a transducer which senses the pressure in the secondary air chamber.

Abstract: A method and apparatus for inspecting the internal pressure of hermetically sealed containers wherein a sound wave of free damped oscillation exicted at the elastic wall of a hermetically sealed container is converted and detected as an electrical signal, analysis is performed for natural self-correlation function of this detected signal by using logical operation circuits, and thus, the adequacy of the internal pressure is discriminated by measuring the period of such function.

Abstract: Apparatus for the determination of the sedimentation rate of red blood cells comprising a sedimentation tube adapted to hold a blood column, and a closure valve on one end of the sedimentation tube with said closure valve having a self-sealing valve means.

Abstract: A rugged and inexpensive sensor is disclosed for monitoring fuel injection characteristics such as injection pulse timing and width. A clamp is provided with hand grips and expandable jaws for quickly coupling to a fuel injection line. The jaws are biased into engagement with the line but are easily opened for releasing the clamp by urging the hand grips together. A transducer mounted on the clamp senses mechanical vibration caused by pressure pulsations in the line. The transducer is connected to circuitry for providing an output when the signal level from the transducer exceeds a threshold level. The sensor is self-compensating with the threshold level determined automatically from the maximum signal from the transducer. Therefore, different injection lines can be monitored with no manual adjustment of the clamp or circuitry even though the output of the transducer may vary from line to line.

Abstract: Apparatus and method for mass flow measurement utilizing a substantially "U" shaped conduit mounted in a cantilever manner at the legs thereof, means for oscillating the conduit, and means for measuring the Coriolis force by measurement of the force moment or the angular motion of the conduit around an axis substantially symmetrical to the legs of the conduit. The force moment is measured by sensing incipient movement around the axis, and generating and measuring a nulling force. In preferred embodiments, the oscillating means are mounted on a spring arm having a natural frequency substantially equal to that of the "U" shaped conduit, and in a particularly preferred displacement the measuring means are sensors mounted on the "U" shaped conduit and adapted to measure, with proper direction sense, the time differential between the leading and trailing portions of the "U" shaped conduit passing through the plane of the "U" shaped conduit at substantially midpoint of the oscillation thereof.

Abstract: A device for measuring a urine discharge comprising, a hollow receptacle having an inlet port adjacent an upper end of the receptacle and a channel below the inlet port to receive the liquid passing through the inlet port. The device measures the velocity of the discharge passing from the port to the channel.

Abstract: Sensing elements are located at various required levels in a vacuum dewar. esistance changes are detected external to the container and used to indicate the presence of a liquid at a particular level.

Abstract: A replaceable pipette tip is described which forms a tight sealing engagement with the working end of a pipette. In one embodiment for a pipette tip a cam surface is provided to enable a slight tip rotation when the working end of a pipette is inserted in the tip. A particularly effective and reliable seal is obtained when a pipette tip having integrally molded ring seals and a cam surface is employed with a pipette working end having a resilient insert located to form an effective seal with the molded rings.

Abstract: According to the proposed method for ultrasonic inspection of materials, a eception and processing of ultrasonic vibrations reflected from a material being tested are followed by separating signals from noise at a preset level, which is carried out by means of time selection of signals performed within time intervals during which the signals' amplitudes exceed the preset level. In the device for effecting the method of this invention, an output of an ultrasonic generator, whose input is connected to one of the outputs of a synchronizer, is connected to an input of an ultrasonic converter acoustically coupled to the material being tested. An output of the ultrasonic converter is connected to an input of a reflected ultrasonic vibrations preprocessing unit whose output is electrically coupled to one of inputs of a signals recording unit.

Abstract: A device and process for determining the performance of a computer by determining the performance of its disc information storage system. The read-write heads of the storage system are moved by a coil and armature. The acceleration and deceleration of the arm as it is moved from one cylinder to another causes the frame and cabinet of the disc information storage unit to vibrate. The device senses one or both of these vibrations. From this information the device may determine the amount of time and the percentage of total time the head is moving, the number of head movements, the average time or length of a head movement, and the relative time or length of individual head movements. These are negative indications of the time that no information transfer is occurring in the information storage system, and, therefore, of the efficiency of information placement on the discs in the storage units. The invention also includes the processes of doing these procedures.

Abstract: Disclosed is a device for sensing and indicating the pressure within a food extruder. Preferably, means are provided to supply a controlled flow of fluid to the interior of the food extruder at a pressure just above that needed to balance the process pressure and sufficient to provide a low positive flow of fluid into the extruder. Means are provided to sense the pressure of the supplied fluid and to indicate its value. By proper calibration of the fluid pressure indicator, the internal extruder pressure can be measured indirectly.

Abstract: A unidirectional drive system, particularly intended for electric starter motors of internal combustion engines, comprises a ratchet wheel surrounded by a cage having one or more pivoted pawls. These pawls can either be in engagement with the ratchet wheel or can move out of such engagement, generally as a result of centrifugal force. A stop device, which may be a cylindrical ring or a pair of discs, can move into position to hold the pawls out of engagement with the ratchet wheel.

Abstract: A pushbutton tuner with its reduced size includes linkage means operatively connected a tuning slider laterally positionable in accordance with the setting of the tuner. A link engaging pin provided on a pushbutton operative member engages with the linkage means upon depression of the pushbutton operative member so as thereby to move the slider depending upon the preset position of the engaging pin.

Abstract: A control arrangement for controlling the movement of an oscillating lever so as to allow the lever to exert a force of predetermined magnitude on an article placed in its path. Control of the lever is effected through a transmission mechanism which operably connects a control cam between the oscillating lever and an auxiliary lever in contact with the cam. A setting control sets the interacting force of the two levers to a predetermined value, such that, if the oscillating lever in the course of its movement in a first direction arising from rotary movement of the cam is arrested by an article arranged in its path, the force exerted by the oscillating lever on the article is at least equal to the predetermined value multiplied by the ratio between the distance which separates the shaft of the oscillating lever from the point where the interacting force is exerted on the lever, and the distance which separates the same shaft from the point where the oscillating lever is in contact with the article.

Abstract: A variable speed gearless traction transmission particularly adapted for both power and manually operated vehicles, and when used on a power vehicle a continuous torque/speed take-off is provided that permits the engine to operate within a narrow range of speed and still provide a wide range of power and acceleration. The operation of the engine within such a narrow range not only reduces fuel consumption but also polluting emissions.

Abstract: Sheave assembly for V-belt type transmission including fixed and movable sheave elements which cooperate with each other. A rotatable disc is mounted on the sheave shaft and engaged with the movable sheave element through a cam device. The disc is adapted to be applied with braking force when the engine throttle valve is closed or when the vehicle equipped with the transmission is applied with a brake so that a cam force is produced to urge the movable sheave element toward the fixed sheave element.

Abstract: A semi-trailer landing gear speed reduction mechanism is provided which includes two horizontally disposed parallel spaced shafts with one shaft being rotated by a manual crank means and the other shaft connected to a mechanism for raising and lowering the landing gear. A two speed ratio for the mechanism is provided by having a fixed pair of gears secured to the driven shaft, a pinion gear fixed to the driving shaft and a gear having both internal and external threads supported on its internal threads on the driving shaft and in engagement with a pinion gear on the driven shaft.

Abstract: An electric regulating device, particularly for a speed control device for motor vehicles, with a servomotor and a rotatably mounted element which actuates the regulating member, the rotatable element particularly being a cable pulley which stands in operative connection with the servomotor via a gearing and a coupling device containing an electromagnet. At least one of the gears of the gearing is radially and at an angle or axially moveable mounted, and is connected indirectly or directly with an armature, which in turn cooperates with the electromagnet.

Abstract: A method and apparatus for eliminating end thrust and consequently the need for thrust bearings in a helical drive arrangement is disclosed. According to this invention, a helical gear and a spur gear having the same pitch diameter and center of rotation are securely attached to each other and mounted to a shaft. This helical-gear spur-gear combination is meshed with a second similar helical-gear spur-gear combination supported on a parallel shaft. During operation the axial forces normally created by a helical gear drive are contained as the teeth of the two spur gears contact each other. Thus the need for end thrust bearings is eliminated.

Abstract: Rack steering gear is provided wherein the rack is slidable between cushioning devices on a guide member reciprocated through the cushioning devices and which connects to the steering linkage mechanism for actuation thereof. Road shock is absorbed by the cushioning devices so as not to be transmitted to the rack and thus to the primary steering system comprising the steering wheel and the steering shaft which conventionally actuates the rack through a pinion. The cushioning devices are constructed so that minor shocks are quickly absorbed to preclude vibration and chattering.

Abstract: A control mechanism for hydraulic system having three sets of hydraulic units and single control lever for controlling all said three sets of the units individually or in unison.

Abstract: The present invention is directed to an improved rim or a high-performance rotary inertial energy storage device (flywheel). The improved rim is fabricated from resin impregnated filamentary material which is circumferentially wound in a side-by-side relationship to form a plurality of discretely and sequentially formed concentric layers of filamentary material that are bound together in a resin matrix. The improved rim is provided by prestressing the filamentary material in each successive layer to a prescribed tension loading in accordance with a predetermined schedule during the winding thereof and then curing the resin in each layer prior to forming the next layer for providing a prestress distribution within the rim to effect a self-equilibrating compressive prestress within the windings which counterbalances the transverse or radial tensile stresses generated during rotation of the rim for inhibiting deleterious delamination problems.

Abstract: A hydrostatic torque converter has a hydrostatic transmission and a stepped or gear transmission shiftable under load by selective actuation of respective clutches assigned to the gear trains. The variable-displacement pump is controlled hydrostatically to follow the switchover between clutches with the control pressure to the servocontrolling the displacement of the pump being regulated in response to the fluid pressures of the clutches through respective pressure modulation valves. As a consequence, the hydrostatic transmission compensates for the jump resulting from the shifting of the steps of the gear transmission and follows the stepping of the gear transmission outside the forced actuation of the transmission (positive switching overlap of the shifting clutches) in dependence upon the progress of load transfer from the released to the engaged clutch.