Abstract: A process for producing compacted graphite cast iron thin walled shaped castings in a high productivity line is provided which comprises: (i) forming a near eutectic melt of cast iron, having a low sulfur content, preferably around 0.01% by weight; (ii) adding to the melt sufficient graphite stabilizing agents such as silicon to suppress the carbide eutectic formation at the large undercooling characteristic of thinner sections of the castings; (iii) admixing at least one rare earth containing additive with said melt to form rare earth compounds so as to reduce and maintain the Henrian oxygen activity in the melt at about 10.sup.-6 ; (iv) inoculating the melt in an optimum manner to promote the required degree of interconnected vermicular graphite growth, and (v) casting the resulting melt.

Abstract: A heat-laminatable composite film obtained by providing, in sequence, a layer of a mixture of (B) a reactive polyurethane containing isocyanate groups therein and (C) a vinyl chloride-vinyl acetate copolymer on one surface of a film of (A) a saponified product of ethylene-vinyl acetate copolymer, or, Layer (B) and further Layer (C) on one surface of the film of (A). A laminated material obtained by heat-laminating the composite film onto at least one surface of a plasticized polyvinyl chloride layer.The heat-laminatable composite film of the present invention is excellent in blocking resistance and adhesive strength. Further by heat-laminating the composite film onto the plasticized polyvinyl chloride layer, bleeding of the plasticizer in the polyvinyl chloride layer can be prevented.

Abstract: This invention relates to a portable cold device for skin massage through the vasodilatation effect that follows the vasoconstrictor effect of cold. A small ball that contains glycerine and pure alcohol, preserved at -20.degree. C., is closed by means of a rubber or plastic teat that has an application device or tip. A neck of the ball has an insulating collarette to make it easy to hold and manipulate.

Abstract: A force transducer and circuit are used to detect the edge of a rotating grinding wheel. The force transducer produces an output signal indicative of a force applied thereto. The output signal is filtered by a high pass filter coupled to the output of the transducer. The amplitude of the filtered transducer output signal is compared to a reference value. An output pulse is produced if the amplitude reaches a predetermined level with respect to the reference value. A timer responsive to a first output pulse establishes a fixed interval during which the number of subsequent output pulses is counted. If the number of pulses counted during the fixed interval reaches a predetermined quantity, a control signal indicative of edge contact of the grinding tool with the force transducer is produced.

Abstract: A monitoring device for use with a loop circuit including a plurality of lights, which includes a monitoring current transformer having a magnetic core with a primary circuit connected in series with the loop and a secondary circuit coupled to the primary circuit, the primary circuit being arranged such that the loop current saturates the transformer core and the secondary circuit being in open-circuit condition, the monitoring current transformer generating a monitoring voltage signal in response to each inversion of the loop current. The monitoring voltage signal is used to generate a window signal during the time interval when the monitoring voltage signal has a significant value and the window signal is then used to control the integration of a signal representative of the loop voltage with a view to producing a detecting signal which is indicative of the number of defective lights. The integration time interval is thereby determined whatever the loop current waveform may be.

Abstract: A knife sharpening device having a base removably supporting a pair of grinding wheels at an acute angle to the horizontal. A housing encloses the base and includes a slot for receiving a knife edge, which when inserted in the housing will seat between the wheels. The wheels are biased into clamping engagement with the knife edge so that to and fro movement in the slot will cause the wheels to contact and grind the edge of the knife.

Abstract: A composite hollow fiber type separation membrane which has three layers comprising a selective separation layer, an ultra-microporous layer and a porous layer, said selective separation layer, said ultra-microporous layer, said porous layer being arranged in said order commencing from the inner surface of said hollow fiber membrane;wherein said selective separation layer is formed on said ultra-microporous layer without penetrating into said ultra-microporous layer and has a non-porous, dense structure, the average thickness of said layer being 0.01-2.mu., and the coefficient of variation in thickness thereof being less than or equal to 25%;wherein said ultra-microporous layer has a surface in which the presence of pores cannot be confirmed by 24,000 .times. scanning electron microscopy, but which has a fluid permeability at least 10 times that of said selective separation layer, the thickness of said layer being less than or equal to 0.08.mu.

Abstract: There is provided a fabric made of sheath-core type composite fibers in which the core is made of an elastomer (A) and occurs in a fineness of not less than 0.15 denier per core piece and the sheath is either made of sea-island phase whose island component is a nonelastic, fiber-forming polymer (B) and occurs in each fiber in the form of a large number of fine island pieces having a fineness of less than 0.15 denier and whose sea component is a soluble polymer (C), or made of a multilayer laminate phase with the nonelastic, fiber-forming polymer (B) and the soluble polymer (C) occurring radially and alternately. Also provided is a fabric derived from the above fabric by removal of the soluble polymer (C) in the composite fibers by treatment with a solvent. The resultant fabric comprises bicomponent fiber bundles each composed of a core fiber of elastomer (A) and a large number of ultrafine fibers of nonelastic polymer (B) surrounding the core fiber.

Abstract: An improved process for continuously producing ethylene-vinyl acetate copolymer containing 20 to 50 mole % of ethylene is provided. An aliphatic alcohol solvent is employed in the polymerization vessel. Ethylene vapor discharged from the polymerization vessel is introduced into the tubes of the lower part of a multi-tubular heat exchanger. Vinyl acetate is introduced into the upper part of the heat exchanger and caused to flow through said tubes, thereby effecting absorption and solubilization of ethylene into the vinyl acetate. The solubilized ethylene and vinyl acetate is passed to the polymerization vessel. The process of this invention permits the stable production of the copolymer over a long period of time.

Abstract: An apparatus for extracorporeal lung assist including a pump device having a flexible blood reservoir housed in a rigid housing, which pump device is able to expand and contract the blood reservoir by pumping liquid into and from the housing, thereby repeating cycles of blood feed and blood take-off, a blood take-off circuit connected to the in-flow side of a membrane artificial lung and in which the pump device is disposed, a blood feed circuit connected to the out-flow side of the membrane artificial lung, the two circuits forming an extracorporeal circulation circuit, a liquid circulation circuit connected to the housing of the pump device and having a flexible liquid reservoir disposed therein with a head provided relative to the pump device, and sensors for detecting the expansion and contraction of the liquid reservoirs, whereby blood in-flow and out-flow paths are controlled so that when the blood reservoir is contracted, blood is drawn into the blood reservoir under subpressure in the housing, whereas

Abstract: A resinous composition which comprises (A) 95 to 50 parts by weight of a saponified product of ethylene-vinyl acetate copolymer and (B) 5 to 50 parts by weight of a product formed by modifying ethylene-vinyl carboxylate ester copolymer or ethylene-acrylate ester copolymer with an .alpha.,.beta.-unsaturated carboxylic acid or anhydride thereof. This resinous composition can be made by melt extrusion into a molded article which is superior in impact resistance to that formed from the component (A) alone. The resinous composition can also be made into an inner layer or interlayer of a laminated container. This container is suitable for bottles of foods and agricultural chemicals because of its outstanding impact resistance, organic solvent resistance, and oxygen barrier properties.

Abstract: A discharge installation to be used in a silo for bulk material in powdered or granular condition comprising a central column of interspaced annular collar plates surrounding a central discharge chute, subsequent collar plates merging into each other forming a mainly helical path, a traveling scraper device being provided in the space between subsequent collar plates.

Abstract: A hot stamping method enables the formation of very sharp edges and profiles of characters/numerals, patterns and the like upon a surface of a base plate. This method comprises a masking step making certain characters, numerals and patterns formed by a masking layer upon a surface of a base plate; a step of placing a foil sheet having an adhesive layer upon a surface of the masking layer and a surface of the base plate, and transferring a foil of the foil sheet to the surface of the base plate by means of heat and pressure; and a step of leaving the transferred foil upon the surface of the base plate and releasing the masking layer and the foil transferred to the surface thereof from the base plate.

Abstract: The invention relates to a chuck in which the clamping jaws are connected with the chuck body via radially deflectable arms. Two flat parallel arms are preferably provided for each clamping jaw. These arms act like leaf springs and form a parallelogram link arrangement for the associated clamping jaw. The clamping jaws and arms are preferably designed in one piece with the chuck body by forming slots in corresponding projections of the chuck body by means of wire erosion. The clamping jaws are actuated in accordance with the invention via a wedge face arrangement comprising a two-armed lever for each clamping jaw. A short arm of the lever engages the associated clamping jaw whereas a wedge face provided on a distinctly longer arm of the lever interacts with an actuating element, in particular a roller, of the axially displaceable actuating member.

Abstract: A machine tool is provided with a controller for computing, as a function of an established radius and a preset feedrate, a rotational speed for rotating the machine spindle to provide a uniform surface speed at the working edge of a tool as the tool alternates between linear movement along an X and/or Y axis and arcuate movement along the C-axis of the spindle. A method is provided for gauging straight surfaces and adjoining arcs at a constant feedrate without interruption.

Abstract: A resource recovery utility is provided comprising a landfill having a continuous wall surrounding the perimeter thereof and a containment structure extending completely over the landfill affixed to the continuous wall. Refuse can be introduced into the landfill and compacted therein and at least a portion of the compacted refuse can be removed therefrom. Methane generated by anaerobic bacterial digestion of organic materials contained in the refuse can be removed and recovered.

Abstract: There is provided a laminate structure comprising (A) a layer of saponified product of ethylene-vinyl acetate copolymer and (B) a layer of hydrophobic thermoplastic resin, with (C) a bonding interlayer placed therebetween which comprises a composition of (X) a polymer of ethylene-acrylate ester-ethylenic unsaturated carboxylic acid or anhydride thereof and (Y) a polymer of ethylene-acrylate ester.The laminate is superior in interlaminar adhesion and gas barrier properties, and is suitable for food packaging.

Abstract: Apparatus which can be embodied in an electronic wristwatch monitors the integrity of a wrist strap ground. An input terminal to which a known ground is coupled is provided. An oscillator produces a fixed frequency which is mixed with a signal from the input terminal to provide a composite signal. The composite signal is coupled to one input of an exclusive OR-gate. The other input of the exclusive OR-gate is coupled directly to the output of the oscillator. The output of the OR-gate is processed to produce an output signal indicative of the phase relationship between the oscillator output and the composite signal. When the input terminal is grounded, the phase relationship between the oscillator output and the composite signal changes, resulting in a change in the output signal which can be used to trigger an indicator (e.g., visual display and/or aural alarm) to indicate to a user whether he or she is properly grounded.

Abstract: There is provided a coating material made of a saponification product of a modified ethylene-vinyl acetate copolymer containing a cross-linkable olefinically unsaturated monomer. The saponification product is characterized by its intrinsic viscosity not greater than 0.7 dl/g which is measured at 20.degree. C. using phenol containing 15 wt % of water as a solvent. This polymer is readily soluble in solvents, and the resulting solution can have concentration as high as 20 to 50 wt % and provide coating film which is as strong as that obtained from the conventional EVOH having a high degree of polymerization.