Abstract: A permanent precision liquid polishing suspension, and a method for making same, comprising fine abrasive polishing powders held in a suspension medium comprising an aqueous glycerine based composition thickened by a carboxy polymethylene polymer.

Abstract: An improved sanding block is disclosed for receiving and tensioning a continuous or endless sandpaper or other abrasive wrap-around belt about the sanding block's periphery. The block effectively uses two parts, so shaped that when assembled within an endless abrasive belt, they provide a wedging action which effectively elongates or expands the periphery of the tool to properly tension the belt.

Abstract: A spark plug cleaner is constructed as an upright canister with outwardly directed openings into which spark plugs are inserted. A vertically mounted motor driven impeller sucks grit from an axial center of the canister and flings it toward the spark plug sockets. A grit recovery floor is provided below the impeller and sockets and is configured concave upward. A suction guide fits coaxially over the collection floor and also slopes concave upward toward the center of the impeller. An annular vacuum channel is formed between the collection floor and the suction guide to concentrate impeller suction on spent grit as it falls to said collection floor and to increase grit velocity and density to the impeller.

Abstract: Initially folded wall panels connected by the novel hinge means to the sides of a common roof panel swing downwardly into upright positions as the roof panel is raised for integration into the composite building structure. The novel hinge means comprises a base plate disposed in a vertical plane perpendicular to the wall panel plane and having one leg bolted against the face of a wall panel stud and a transverse leg pivotally connected to a roof panel beam element at an elevated position spaced inwardly from the outer lower edge of the roof panel. In addition, a third leg perpendicular to the plane of the base plate is bolted against the face of a roof panel plate to reinforce the wall panel corner. Two or more such connecting hinges at opposite ends of the roof panel or at intervals along its length section provide the connecting hinge support for each wall panel in a length section module of the structure being erected.

Abstract: A motorcycle garage having a truncated pyramidal structure comprising four foldable panel members which can be folded into and out of an open rectangular frame which is portable. The members are detachably interlocked by latches, with the side members rolling on ball bearing detent supports. Front and rear doors provide access to the interior of the motorcycle enclosure, and vents in the doors minimize interior heat accumulation and moisture condensation.

Abstract: An enclosure for housing industrial equipment and which is adapted to be buried underground. The enclosure includes at least two sections having a common top wall and floor. Each of the sections includes vertically extending sidewalls that are curved outwardly to define a generally convex outer surface. The sections are disposed adjacent to each other along an elongation axis with sidewalls of adjacent sections joined to each other along substantially vertical lines to define an enclosed equipment chamber. The present invention also includes a modular enclosure incorporating at least two modular members that are adapted to be joined together with each modular member including at least one section with a top wall, floor, and outwardly sidewalls. An opening is provided in the sidewall of each modular member and is defined by generally vertical seams. An apparatus is provided for joining the modular members together along mating vertical seams to define an enclosed chamber.

Abstract: An edge protecting and reinforcing channel for shelves, boards, and similar plane platelike members. The channel is formed of a single metal strip and as seen in cross section includes an exterior section and two legs perpendicular thereto, and arranged such that with the exterior section extending along an edge of a board, the legs of the channel extend along adjacent portions of the two opposite side surfaces of the board. The free end portions of the legs are formed as inwardly bent edge flaps arranged to be introduced into grooves in the side surfaces of the board. Corner portions joining the exterior section to the legs are bent outwards and thereby form a free space at the inside of such corner portions to loosely cover the corners of the board. The bent flaps at the free edges of the legs of the channel form an acute angle relative to the channel legs.

Abstract: A skylight construction and method of making same are provided wherein such construction comprises, a support, an outer sheet made of a light-transmitting material and having a peripheral portion adjoining the support, and an inner structure made of a light-transmitting material and having a peripheral edge portion attached to the support defining a first air space between the outer sheet and the structure with the inner structure comprising a pair of inner sheets each made of a light-transmitting material and with the inner sheets being held in spaced relation defining a second air space therebetween such that the sheets and first and second air spaces enable provision of the skylight construction having minimum weight yet providing minimum heat loss in winter and minimum heat gain in summer.

Abstract: A water tower can be erected by mounting each of a pair of generally two-dimensional support frames each having an upper portion and a pair of lower ground-engaging feet projecting therefrom for pivoting at the feet about a respective horizontal axis generally at ground level. Then the two frames are pivoted about their respective axes from down positions lying on the ground into up erect positions with the upper portions spaced horizontally apart. An upwardly open vessel intended for the eventual storage of water is then secured between the upper portions to fix the assembly of frames and vessel into a rigid assembly.

Abstract: A pole construction having a generally telescoping configuration between its ends and the method of forming such a pole are disclosed. The pole is formed of longitudinally axially aligned cylindrical structural steel tubes. Each section of tube is of a uniform outer diameter and the respective sections progressively decrease in outer diameter. One end section of a larger tube overlaps the end section of the next smaller tube. An annular body of a non-metallic non-shrinking settable material such as concrete fills the space between the overlapping end sections of the tubes and rigidly secures the overlapping tubes to each other.

Abstract: Device for packaging and preserving sterilized products under vacuum in plastic packs, in particular linen, in an autoclave, comprising at least one support-rack, a plurality of parallel bars supported by said rack, a plurality of packs in the form of air-impervious plastic bags open at one end, means for supporting the packs in the support-rack with the open ends of said packs extending between adjacent bar of said plurality of parallel bars, and member for compressing and sealing the open ends of the packs fixed to the parallel bars. Said bars are rigidly secured to the support-rack so as to provide between the compressing and sealing members slots of predetermined width open at at least one of their ends, and the pack supporting means comprises at least one auxiliary parallelipipedical rack which can be introduced into and removed from the main support-rack in a direction parallel to the longitudinal directin of the slots.

Abstract: An apparatus for arranging a carrier mat of resilient material on a number of arranged moving containers, comprising a conveyor for the containers, a delivery device for the mats and means for positioning the containers or bottles with respect to this delivery device, which latter comprises a first and a second pair of mutually opposite-reciprocating driven slides, the upper face of the second pair being located lower than that of the first pair over a distance corresponding to the thickness of the carrier mat, the slides of the first pair being provided with pressure faces directed aslant toward the containers and the distance between the top of the containers and the bottom of the first pair of slides being smaller than the thickness of the carrier mat.

Abstract: An automatic bagging system useful for packaging a stack of a compressible material, such as a stack of folded disposable diapers into a drawstring type plastic bag. The apparatus includes means for compressing gradually the stack of diapers while reorienting the stack so that when the stack is packaged, the diapers will fit snugly in the bag with the folded portion of the diaper near the open end of the bag, for convenience in removing each diaper from the bag. Further the apparatus comprises means for handling and conditioning the bag for the insertion of the diaper stack that includes collapsible funnels for holding the bag open in a box-like shape in order to receive the compressed stack of diapers.

Abstract: An edge trimmer mounted as auxiliary equipment on a rotary lawn mower. A flexible drive shaft has a first end connected to the top end of the lawn mower engine crankshaft. The opposite end of the flexible shaft is connected to a rotatable input driver of a trimmer. A rotatable cutting head on the trimmer is connectable to the flexible drive shaft by the rotatable input driver. The trimmer is mounted on the lawn mower and may be removed therefrom while connected to the engine crankshaft to facilitate trimming of grass at a location away from the lawn mower. A compressor and reservoir tank is mounted to the lawn mower and may be powered by the flexible drive shaft for spraying insecticide or other liquid.

Abstract: A fruit harvesting assembly of the type including an elongated handle used to cut and collect fruit hanging from trees at a substantial distance above ground. A support frame comprises a base portion attached to the handle means and a head portion having a cutting blade secured thereto. A base portion and head portion are specifically aligned substantially colinear to the longitudinal axis of the handle means wherein the cutting blade and support arms of the support frame are arranged in an angular declining relation to this linear alignment thereby allowing simultaneous positioning of the cutting blade transverse or substantially perpendicular to the stem of the fruit being cut and the support arm in an out of the way location so as to provide clear viewing of engagement of the cutting blade and the fruit being cut.

Abstract: In a crop roll forming machine having a reversibly rotatable upper bale forming means, lower bale forming means and a drive means there is provided an improved control means affixed to the frame movable between at least a first position and a second position for cooperative interaction with the drive means and the upper and lower bale forming means to selectively cause the lower bale forming means to be driven in a generally rearward direction when the control means is moved from the first position to the second position so that a partially formed crop roll is ejected rearwardly from the machine onto the ground.

Abstract: An open-end spinning device is disclosed including a spinning rotor which is provided in a spinning-compartment housing having reduced pressure. The spinning-compartment housing has contours which correspond to the surface of the spinning rotor, with the distance between the spinning rotor and the spinning-compartment housing being relatively short. Upon rotation of the spinning rotor, the air clinging to the surface of the spinning rotor is set in motion as a result of boundary-layer friction. Because of the resulting centrifugal force and because of the short distance between the surface of the spinning rotor and the spinning-compartment housing, a stream of air is produced in the direction of the back of the spinning rotor.

Abstract: Apparatus for spinning comprising a spinning unit structured to receive a running length of roving into a vortex of air, impart twist thereto and discharge it in the form of a spun thread.

Abstract: An apparatus for monitoring the yarn delivered by an open end spinning turbine which has an electric motor for driving the turbine with a predetermined rpm. The apparatus includes a measured value transmitting arrangement responsive to changes in the current consumption of the electric motor for generating a signal when the change in the current consumption exceeds a predetermined threshold value. The measured value transmitting arrangement is responsive to a reduction in the current consumption of the electric motor and generates a yarn breakage indicating signal when the reduction in the current consumption falls below a predetermined value indicative of yarn breakage.

Abstract: A twister ring lubricant is formulated using a major portion of paraffin wax and a minor portion of conventional oil or grease. In the manufacture of ply which is used in making cord, the individual filaments are fed through the eye of a nylon traveler which spins around a steel twister ring. Two or more plies are cabled to form a cord also using a traveler which spins around a twister ring. The twister ring lubricant reduces the sliding friction between the nylon traveler and the steel twister ring.

Abstract: A polyester yarn composed of a plurality of individual fibrous materials such as endless filaments or fibers. Each of these fibrous material is provided with cross-sectional thicker portions, thinner cross sectional portions and intermediate thickness-size portions randomly distributed along the axial direction thereof in a particular condition of distribution of cross-sections of these fibrous material. The above-mentioned polyester yarn involved a textured yarn applied to a drawn polyester multifilament yarn having the above-mentioned basic condition. To produce the polyester yarn according to the present invention, it is the basic condition that the undrawn polyester multifilament yarn should be drawn under a condition of a drawing ratio below a natural draw ratio of undrawn filaments of said undrawn multifilament yarn and a drawing temperature above a crystallizing initiating temperature of said undrawn filaments.

Abstract: A dual phase fuel vaporizing combustor, and method for burning, in an annular vaporizing combustor, high viscosity, high carbon/hydrogen ratio hydrocarbon fuels, including such as residual fuels, low grade synfuels and coal-oil slurries. A dual phase vaporizer tube receives alternating introductions of a fuel air mixture of high fuel content, and then a hot air or low fuel content mixture, to alternately initially discharge from the tube a vapor stream of combined air and partially vaporized fuel, the initial vapor stream impinging onto a hot surface where more volatile portions of fuel will vaporize and burn, while less volatile heavier fuel components will form a hot carbon deposit on the surface; and alternately and sequentially discharge from the tube a hot, highly oxidizing stream with little or no fuel and impinge the sequential stream onto the carbon deposit on the hot surface and thereby promote substantial burning of the carbon.

Abstract: An integrated control system for a gas turbine engine of the turbofan type receives signals from a plurality of engine sensors and from the engine operator and generates control signals therefrom. A first control signal regulates the fan exhaust nozzle area in order to control inlet throat Mach number to maintain a low level of engine noise. Additional control signals regulate fuel flow to control engine thrust and fan pitch to control fan speed. A plurality of schedules are utilized to maintain a predetermined relationship between the controlled parameters and a number of fixed and calculated limits can override the control signals to prevent unsatisfactory engine performance.

Abstract: A turbojet afterburner engine has an expendable nozzle portion which can be jettisoned when the afterburner is placed in operation.

Abstract: An improved by-pass valve (1) for use in an automobile exhaust system (ES) comprises an air inlet (7) connected to an air pump (AP), first and second air outlets (15,23) respectively connected to first and second portions (P1,P2) of a catalytic converter (CC) and a third outlet (33) through which air is dumped to atmosphere. Air is directed from the inlet to the first outlet when engine temperature is less than a predetermined value and from the inlet to the second outlet when engine temperature reaches the predetermined value. A first and normally closed valve (81) is intermediate the air inlet and the first and second outlets and a second and normally open valve (83) is intermediate the air inlet and the third outlet. The first valve is opened and the second valve closed when engine vacuum exceeds a predetermined level so air flows to either the first or second outlet. The second valve is reopened whenever the outlet to which air is directed is blocked so air is dumped to atmosphere.

Abstract: The standby supply for delivering pressure fluid to a user component includes a fluid pump as a primary fluid source coupled to the user component by a first check valve, an accumulator as a secondary fluid source coupled to the pump by a second check valve for charging the accumulator and a valve arrangement coupled to the pump, the accumulator and the user component responsive to pressure from the pump to control a connection from the accumulator to the user component.

Abstract: A plurality of related systems for converting potential energy present by virtue of gravitational and buoyant forces associated with a body of water into kinetic energy and useful power. A pair of parallel, flexible belts are joined by rigid links or rungs affixed at their ends to each belt and passing over one or more rotatable gears having radial teeth with a pitch equal to the spacing of the links. The belts are turned by mechanism attached thereto which is exposed to either the kinetic force of flowing or falling water, or the buoyant force of a body of water upon elements attached directly to the belt and/or links.

Abstract: A master cylinder for use in a vehicle braking system including a main body defining a cylinder bore therein and a piston working in the cylinder bore. A sleeve is inserted into the cylinder bore and engages the main body with a projection-and-recess arrangement therebetween thereby restricting the retracting movement of the piston.

Abstract: The present invention relates to power systems and more particularly to systems in which hot water from a natural well or spring is used to vaporize a working fluid which is then expanded to produce mechanical energy. Improved working fluids are used which comprise mixtures of several fluids so chosen and combined in such proportions that the hot water is used more efficiently with the mixtures than would be possible with their individual components.

Abstract: A burner for a gas turbine power plant is constructed by machining a louver configuration having a series of slots communicating with the surrounding cooling air into the combustion chamber for providing film cooling adjacent the downstream wall of the louver, a series of apertures for preventing recirculation of the hot combustion gases into the wakes formed when the cool air passes through the slots and another series of holes and variable wall thickness to control temperature gradient in the high thermal stress zones.

Abstract: A solar-assisted multiple source and multiple sink heat pump system for use in residential homes includes a solar/air coil mounted in the attic of the residential home and selectively open to the attic interior with the attic roof bearing a solar window with selective shield permitting the attic solar space to constitute a passive solar collector. The solar/air coil is positioned within duct work which selectively opens to the attic interior or the outside air to permit thermal energy pick up from the attic solar space or outside air or wasting of heat thereto. The inside air coil is also mounted in a separate duct work within the attic shielded from the attic interior but selectively open thereto and to and from the building interior beneath the attic for adding heat to the building interior or removing the same. One or more thermal storage tanks may constitute heat and cold sinks.

Abstract: A heat pump type heating and cooling source system in which a heat collecting and radiating panel is connected in a primary medium circulating circuit arranged for heat exchange relation with a secondary medium circulating circuit including an indoor air-conditioning unit. The heat collecting and radiating panel is disposed outdoors to stand substantially normal to the horizontal and is oriented to extend from east to west, and surface treatment is applied to improve the rate of heat radiation.

Abstract: A thermoelectric icebox conversion unit features a cold plate (22) which incorporates bosses (24) and radially extending heat-collecting fins (23), all diecast as one integral unit which avoids sharp corners and joints, thereby decreasing resistance to thermal conductivity. The cold plate serves as the base for the unit and as the means for mounting the unit in an insulated enclosure. Thermoelectric modules (25) are attached to bosses (24). Thermal insulation (32) retained by a separator (31) is enclosed in the space between a heat sink plate (26) and the cold plate. A fan (34) and power supply is mounted on the separator and is attached to the cold plate. A cover (35) encloses the fan, power supply and heat-radiating fins (27) and has openings for circulation of air. A second fan assembly (41) is mounted within the cold plate fins (23), and a baffle plate (42) with openings is placed over the fins and the fan for circulating refrigerated air past the fins (23) as well as within the insulated enclosure.

Abstract: A process is disclosed for the cryogenic purification of industrial by-product gas streams containing recoverable hydrogen. Two feed streams, one of which contains non-readily condensible compounds having boiling points below that of methane, are passed through a successive series of cooling and separation stages. A condensed bottom fraction is separated in a separation drum from an overhead of increasing purity at each stage, and the condensates are combined into one or more condensate streams. The overhead from the stream containing the non-readily condensible compounds is injected into a combined condensate stream, reducing the temperature thereof, and the combined condensate stream is passed back through the heat exchange means to provide refrigeration for the system. An increased amount of hydrogen product is thereby recovered.

Abstract: Air conditioning apparatus and a method of operation thereof, said apparatus being mounted such that the indoor section receives air to be conditioned through an opening in the bottom wall of the unit and likewise discharges the conditioned air into the enclosure to be treated through an opening in the bottom wall of the unit. The heat exchanger, fan and supplementary heaters, if used, are arranged to maximize air flow per given fan power input such that the overall efficiency of the unit can be increased by decreasing the necessary energy to circulate air through the unit. An internal wall is used to support the fan as well as define air flow paths.

Abstract: The invention relates to a heat-exchanger element for a freeze drier, which includes an outer pipe for the through-flow of freezing mixture, and an inner pipe, disposed within the outer pipe, for the through-flow of the gas to be dried, and which is characterized by a core pipe, located within the inner pipe, for through-passage of a fluid. The bore of the core pipe may be in communication at at least one end, and preferably at both ends, of the heat-exchanger element with the bore of the outer pipe. A feed pipe for the through-passage of a second fluid is preferably provided at the end of the core pipe. There may be provided between the end of the core pipe on the one hand and two fluid feed pipes on the other hand a valve means of which the core pipe can be placed in communication with one and/or the other feed pipe.

Abstract: An isothermal compressor apparatus and method, the apparatus including a compression chamber, a piston operable in the compression chamber and an evaporation chamber disposed in heat exchange relationship with the compression chamber, the evaporation chamber being interconnected with a closed refrigerant system. Valves control the flow of compressible gas through the compression chamber while heat exchange coils carry the compressed gas from the compression chamber through the evaporation chamber. The method includes compressing a gas and rapidly removing thermal energy imparted to the gas by the compression process with a refrigerant in the evaporation chamber.

Abstract: An absorption refrigeration system has an electric heater connectable to an electric power source, and a gas burner connectable to a gas supply. A voltage responsive circuit is connected to disable the gas burner circuit when the voltage of an electric supply means is above a determined level, and to disable the electric heating circuit and enable the gas heating burner when the voltage is below the determined value.

Abstract: A refrigerating apparatus having two evaporators which are mounted respectively in the refrigeratory food compartment and the frozen food compartment, and wherein the refrigerant gas flow in the evaporator of the refrigeratory food compartment is controlled by both temperatures of the refrigeratory food compartment and the frozen food compartment.

Abstract: An improved refrigeration system, and particularly the thermal exchanger therefor, for use in chilling a circulating water supply for industrial equipment. The system includes a water container having a plurality of thermal exchangers therein, each exchanger including a coiled refrigerant tube, a first water tube extending coaxially through the refrigerant tube, and a second water tube helically wound about the refrigerant tube. The inlet of the helical water tube communicates with the outlet of the coaxial water tube, and the flow of refrigerant in the coaxial refrigerant and water tubes is in opposite directions. The helical water tube has an outlet which discharges cool water into the container near the inlet end of the refrigerant tube.

Abstract: A refrigerated display case having a display section within a cabinet and movable door covering the access opening to such display section. The cabinet has top, bottom, rear and side walls with an opening in its front, which opening is covered by the door. An air conduit extends along the top, bottom and rear walls of the cabinet. The air conduit has an outlet opening and an inlet opening at opposing ends thereof with the openings being in alignment so that air leaving the outlet opening will be directed towards and received by the inlet opening thereby forming an air curtain across the front opening of the cabinet along the path inside the door. During a refrigeration cycle of operation of the display case, refrigerated air is circulated through the air conduit and a refrigeration mechanism arranged within the conduit by a positive pressure air flow so as to establish a refrigerated air band and a refrigerated air curtain across the front opening in the cabinet.

Abstract: A method and apparatus for perfusing livers comprising a portable container and a liver receptacle removably positioned in such container. Portions of the receptacle are spaced from the walls of the container when the receptacle is in position so that ice may be positioned around the receptacle. A perfusate holder is mounted on the container. A second container surrounds a portion of the holder and is adapted to receive ice. An intermittently operated flow regulator controls gravity flow of perfusate at predetermined rate from the holder to the receptacle and a timer controls operation of controller at predetermined time intervals.

Abstract: This invention relates to beverage coolers in general and more specifically to an improved beer keg cooling and transporting device which comprises a segmented foam cooler structure which envelopes the keg and includes a pocket which when filled with a relatively small portion of ice will maintain the keg at a sufficiently cold temperature, and further including handles to facilitate transporting the keg and cooler.

Abstract: An ejector is used in place of a compressor with moving parts in the refrigeration apparatus. The ejector has an intake side connected to the gas space of a liquefied gas tank, a propellant jet input connected to a delivery side of the compressor to receive a high pressure flow of gas and a delivery side in the form of a diffusor output connected to the intake side of the compressor. A pair of ejectors can be connected in series or, where more than two liquefied gas tanks are used, in parallel.

Abstract: An earring stay consisting of two parts resembling in structure a pierced earring and furnishing when mounted a platform at each surface of the ear lobe such that screw-on earrings can be clamped firmly against the platforms and will not exert their pressure on the lobe. The parts include a tube portion and a shaft portion which enter the pierced lobe and which are smooth inside and out. The male shaft fits snugly inside the hollow tube portion of its female counterpart protruding through the aperture in the lobe, and is held thus by vacuum, friction, or the pressure of an attached earring clasp.

Abstract: A coupling for a flexible shaft for a pump rotor orbiting within a stator. Coupling of the shaft to a driving or driven member is made easily by screwing the end of the shaft by hand into a socket in the member, and by then locking the shaft against rotation in the socket by means of abutting complementary oblique faces at the end of the shaft and at the end of a locking element in a transverse bore intersecting the socket. The screwing in of the shaft into the socket need not be more than fingertight. This permits the use of a shaft of uniform cross section (no flats for spanners) having a smooth surface finish, thereby providing good fatigue life.

Abstract: An external member for a tripod joint including a cup shaped spider holding portion for holding a spider formed with trunions and a stem portion formed with splines for power transmission coupled to the bottom of the spider holding portion and wherein the bottom of the spider holding portion is made imperforate and at least the spider holding portion or the stem holding portion is formed with an annular ridge and the spider holding portion and the stem portion are integrally friction-welded together at the annular ridge.

Abstract: A coupling having two coupling members with engaging faces; each face has a plurality of annular, concentric ribs of trapezoidal cross-section and grooves correspondingly shaped to receive the ribs on the other face; less than the entire contact area of each face is ribbed; a spigot on one in a recess coupling member is received for initially positioning the coupling members; devices for clamping the coupling members together.

Abstract: During at least one complete rotation of the needle cylinder of a circular knitting machine, more than one yarn-carrying finger is kept activated at at least one of the machine's striping boxes. Each striping box includes an indexed control drum having axial slots which receive finger-activating jacks. An annular holding spring extends circumferentially of the control drum midway between the drum's axial ends and very tightly holds the axial legs of L-shaped jacks. To simultaneously activate yarn fingers located at opposite axial sides of the holding spring, at least one axial holding slot contains two L-shaped jacks. The axial legs of the two jacks are held in conventional manner beneath the spring, but are each of half-normal thickness, so that their combined thickness equals that of the holding slot for a snug fit therein.

Abstract: A pneumatic take-down device for a circular knitting machine of the rotating cylinder type has a take-down tube mounted in the cylinder for rotation therewith and opens into an article receiving chamber in a housing that is mounted on the tube for rotation therewith. Suction is applied to the housing through perforations so that a suction take-down tension is applied to an article being knit to draw the article into the housing chamber and retain it therein without relative twisting during the knitting operation. The tube opens transversely to feed articles transversely to the perforations and also opens across the tube for in line discharge of articles through a discharge opening in the housing when suction is drawn through the discharge opening and discontinued through the perforations upon completion of knitting of an article. The tube has a cylindrically reduced portion adjacent the needle end of the cylinder for concentrated article tensioning suction thereat.