Abstract: A shell mold includes a plurality of sleeve forming portions. Of the sleeve forming portions, at least an endmost sleeve forming portion located adjacent to a subrunner portion has a modified shape for compensating for deformation of cast sleeves caused by solidification and contraction of molten metal. A shell molding apparatus includes an upper die and a lower die which constitute a die set for molding a shell mold. The lower die is composed of shell molding inserts, each having the shape of a halved cylinder, spiny insert receiving recesses formed in the shell molding inserts, and spiny inserts retractably provided in the spiny insert receiving recesses. In a casting method using a shell mold, many protrusions of a spiny insert are reversely copied to the inner surface of a halved shell mold at the undercut portion of the inner surface, thereby forming many depressions at the undercut portion. The halved shell mold is parted from the lower die.

Abstract: A shell molding apparatus includes a lower die and an upper die. The lower die includes a plurality of shell molding inserts, each having the shape of a halved cylinder, spiny insert receiving recesses which are formed in undercut portions formed by curved surfaces of adjacent shell molding inserts, and spiny inserts retractably provided in the spiny insert receiving recesses, each spiny insert having a curved surface of the same curvature as the curved surface of the shell molding insert and provided with many protrusions on the curved surface. The upper die has a plurality of continuously formed recesses corresponding to the plurality of shell molding inserts of the lower die.

Abstract: An ECR plasma CVD apparatus is used for forming a silicon oxide film on a semiconductor substrate. The gas pressure inside the apparatus is set within the range of 7.times.10.sup.-3 to 1.times.10.sup.-1 Tort and high frequency power is applied to the substrate. A cusp-shaped magnetic field is created. Due to a synergistic effect between the high frequency electric field and the cusp-shaped magnetic field, the film has an improved waterproofing property. The gas pressure inside the apparatus is controlled by controlling the cross sectional area of a bypassing conduit connected to an exhaust pipe, by introducing gas into the exhaust pipe in a central portion thereof, or by controlling the rotational speed of a vacuum pump.

Abstract: A bath for the treatment of DI cans that contains phosphate ions, at least one of zirconium and titanium compounds, oxidizing agent at no more than 500 ppm, and fluorides at no more than 2,000 ppm as fluorine, and that has a pH of 2.0 to 4.0, is useful for treating the surface of both aluminum and tinplate cans prior to the painting/printing thereof.

Abstract: A molding die having, an outer eccentric ring slidably fitted in an axle hole of a boss molding die assembly of a molding die unit, outer eccentric ring being formed with an eccentric hole the center of which is deviated from the center of the outer eccentric ring, an inner eccentric ring slidably fitted in this eccentric hole of the outer eccentric ring, and a holding pin for holding an insert and slidably fitted in the inner eccentric ring at a point which is deviated from the center of the inner eccentric ring. In adjusting the balance, the position of the holding pin is adjusted such that the center of rotation coincides with the center of gravity of the molded articles. In forming the die, the insert held by the holding pin of which position was adjusted is embedded in the molded article.

Abstract: A thermal recording medium including a base layer containing a resin having a functional group which chemically bonds with a metal having a low melting point, such as Sn-Pb alloy, and a thermal recording layer made of a thin film with low resistivity of a low melting point metal formed on said base layer such that when a part of the thermal recording layer is heated, the heated part melts and perforates to record information.

Abstract: A humidifier comprises a liquid storing chamber provided in the lower portion of the casing. A nozzle is provided in the upper portion of the casing. An adaptor, provided in the upper portion of the casing, introduces compressed air and liquid into the nozzle. A liquid sucking pipe communicates with a liquid sucking opening of the adaptor and extends vertically downward to the vicinity of the bottom surface of the liquid storing chamber. A float is provided in the liquid storing chamber and is movable along the inner surface of the liquid storing chamber, depending on the amount of the liquid stored therein. A liquid cutoff lever is provided above the float and contacts the upper surface thereof. A liquid cutoff valve, of a liquid cutoff device mounted on the casing is operated by the liquid cutoff lever so that the capacity of the liquid to be controlled by the liquid cutoff valve is small, for example 30 cc.

Abstract: A nozzle is disclosed which has a cylindrical nozzle main body. A nozzle tip of the nozzle comprises a plurality of members formed by dividing an approximately cylindrical member in the axial direction thereof and is accommodated in the interior of the nozzle main body. A spring is provided between a spring receiving section of the nozzle tip and a wall positioned on a forward side of the nozzle main body. At least one of a peripheral surface of a discharge section of the nozzle tip and an inner surface of a tip engaging opening of the nozzle main body is tapered. A self-cleaning operation is performed when the atomization pressure is reduced, because the spring urges the nozzle tip toward a rearward side of the nozzle main body.

Abstract: An ink composition for thermal transfer printing, which composition comprises a coloring agent and a mixture of an aromatic ester-containing polyurethane and at least one thermoplastic material selected from the group consisting of thermoplastic resins and waxes, has a good transferring property and improved anti-blocking and forms printing having good durability.

Abstract: A silver oxide cell which comprises a positive electrode comprising a shaped body of silver oxide as a main positive active material, a negative electrode and an alkaline electrolyte, characterized in that the shaped body is a molded product of a composition comprising particles of silver oxide and particles of manganese dioxide, both particles having a certain particle size distribution, so that a detectable voltage difference is produced prior to complete consumption of the discharge capacity of the cell, whereby the termination of the discharge capacity of the cell can be anticipated.

Abstract: A frequency dividing circuit for dividing an input signal provided from a signal source at a selected dividing ratio includes first and second cascade-connected frequency dividers with signal controlling gates connected between the signal source and the first frequency divider, between the first and second frequency dividers, and between the signal source and the gates connected between the first and second frequency dividers. The signal controlling gates may be selectively controlled by a control switch to define a first signal path that includes both the first and second frequency dividers to effectively divide the input signal by both frequency dividers or a second signal path that includes only the second frequency divider to effectively divide the input signal by the second frequency divider only. The circuit includes input amplifiers which may be connected to various signal sources including signal sources that employ crystal oscillators, RC oscillators, and other types of oscillating circuits.

Abstract: A dynamic loudspeaker comprises first and second device means each having a coil disposed in a magnetic gap formed in a magnetic circuit, a vibratory member driven by a first drive means, and a massive member opposingly disposed to the vibratory member and being driven by a second drive means, whereby reaction force generated by said vibratory member is substantially eliminated by reaction force of said massive member.

Abstract: A disconnection indicating apparatus for automobiles which electrically detects a disconnection or failure of an automobile turn signal and automatically signals the failure by flashing the disconnected turn signal lamps at an increased flash frequency.

Abstract: A silver(II) oxide cell which comprises a positive electrode comprising a shaped body of silver(II) oxide as a positive active material, a negative electrode comprising zinc as a negative active material and an alkaline electrolyte, characterized in that the shaped body is a molding product of a composition comprising particles of which each particle comprises a core part of silver(II) oxide and a surface part of silver(I) oxide integrally and continuously provided around the core part, the weight ratio of the silver(II) oxide and the silver(I) oxide being from about 70 : 30 to 90 : 10. Such silver(II) oxide cell has large discharge capacity and shows a flat and even discharge characteristics without any substantial deterioration in performances on storage.