Abstract: A portable cart for carrying luggage comprises a central section, a handle section detachably connected to a rear portion of the central section, two side sections pivotally connected to the central section respectively and having at least one wheel rotationally connected to a rear portion of the side section, and a device for holding the side sections horizontally so that the upper portions of the side section and the central section are substantially located on the same plane. When the holding device is released, the side sections can rotate relative to the central section so that the side sections are substantially oriented perpendicular to the central section and parallel to each other. The handle section is formed of a plurality of elongated rods telescopically connected to each other so that when the handle section is used, the rods are extended upwardly from the central section to orient in order from a rod having largest diameter to a rod having a smallest diameter.

Abstract: A melt spinning head structure is heated by use of a low melting point fusible alloy, preferably a binary-quaternary eutectic composition.

Abstract: According to the method of this invention for fixation of incinerator ash, incinerator ash containing SiO.sub.2 and Al.sub.2 O.sub.3 is incorporated with NaOH or NaOH and an SiO.sub.2 -containing substance in such an amount that the resulting mixture contains 25 to 90 wt % of SiO.sub.2, 2 to 10 wt % of Na.sub.2 O, and more than 3 wt % of Al.sub.2 O.sub.3 which is less than the content of SiO.sub.2 in terms of mol %; 100 parts by weight of the mixture is mixed with more than 5 parts by weight of water; and the resulting mixture is subjected to hydrothermal reaction under a pressure of 70 kg/cm.sup.2 or above and at a temperature of 150.degree. C. and above, whereby the fixation is accomplished.

Abstract: A wet spray booth treating agent, characterized by containing melamine-aldehyde acid colloid solution and a method for the treatment of a wet spray booth, characterized by the use of the aforementioned treating agent.

Abstract: A steel laminate gasket comprises a plurality of thin steel plates to be stacked one after another, and devices for identifying the position of the steel plates formed on the steel plates where no sealing ability is affected. When the steel plates are stacked in the proper order, the devices form a stepped portion with different height relative to a predetermined horizontal plane of the gasket. Consequently, a user can notice the proper order of assembly of the gasket.

Abstract: Sustained release antimicrobial agents comprising a clathrate compound composed of a water-soluble antimicrobial agent, and 1,1,6,6-tetraphenyl-2,4-hexadiyne-1,6-diol or 1,1-di(2,4-dimethylphenyl)-2-propyne-1-ol, and methods of fouling control using the same.

Abstract: A dielectric powder consisting of a solid solution of compounds selected at least one each from the two group (a) and (b) of compounds indicated below and having a chemical composition represented by the following general formula:[ABO.sub.3 ].sub.1-x [A'(B'.sub.1-y B".sub.Y)O.sub.3 ].sub.x (I)(Wherein x and y satisfy 0<x<1 and 0<y<1 respectively), is produced by mixing metal alkoxides in proportions such that the proportions of the metallic elements thereof conform to the proportions of the metallic elements in the aforementioned general formula (I) and hydrolyzing the metal alkoxides contained in the resultant mixture:(a) Compounds of the ABO.sub.3 type perovskite structure and(b) Compounds of the A'(B'.sub.1/2 B".sub.1/2)O.sub.3, A'(B'.sub.1/3 B".sub.2/3)O.sub.3, or A'(B'.sub.2/3 B".sub.1/3)O.sub.

Abstract: Novel tylosin derivatives are represented by formula: ##STR1## wherein R represents a hydrogen atom, an acetyl group or a propionyl group; X represents a group --CO-- or --SO.sub.2 --; Y represents a fluorine atom, an acetyl group, a methanesulfonyl group, a methylthio group, a benzoyl group or a methoxy group bound to the benzyl group at the 2-position or 4-position; and Z represents a hydrogen atom or a D-mycinose residue: ##STR2## The tylosin derivatives which are antibiotics of macrolide type provide improved antibacterial activity and improved ability of absorption and excretion in vivo.

Abstract: Novel anthracycline antibiotics characteristic of Ring A of the anthracycline skeleton are produced by microorganisms belonging to the genus Streptomyces and are useful as anti-cancer agents.

Abstract: A fire escape descender capable of controlling the descending speed, thereby ensuring that the escaper can escape from the burning building at a desired speed, wherein the speed controlling is effected either manually or automatically.

Abstract: A spherical hob for generation of a gear comprises a symmetrical frustospherical body in the form of a sphere truncated at two opposed extremities thereof, the body having an axis of symmetry perpendicular to the extremities. A hole passes through the body coaxially with the axis. Formed spirally about the axis on the peripheral surface of the body are projections having a section in a plane including the axis in the form of an involute tooth profile. Formed on the peripheral surface of the body, across the projections is a plurality of equidistantly arranged spaces dividing the projections into a plurality of spirally continuous hob blades, each having an involute tooth profile.

Abstract: A device for supplying fuel to an internal combustion engine comprises a shell, a tube received in the shell and a rod received in the tube with a sliding fit. A plurality of orifices in the tube at intervals along at least a portion of the length of the tube is provided. The rod is insertable in the tube to an extent sufficient to block the orifices and retractable to an extent sufficient to leave the orifices unobstructed. The number of orifices left unobstructed increases in proportion to the extent to which the rod is retracted. The rod includes means for connection to a linkage from a motor vehicle throttle for effecting axial movement of the rod. An annular space is defined between the exterior wall of the portion of the length of the tube having orifices and the portion of the length of the interior wall of the shell facing the orifices. Also provided are means defining passages for admitting liquid fuel into the annular space.

Abstract: A lady's handbag adapted to be carried with improved security. The handbag includes a main article-carrying bag-shaped portion. Secured to the main portion near corners thereof is a strap adapted to be carried over the back of the wearer's neck. The main portion has an exterior face adapted to face the front of the wearer's torso when the handbag is carried with the strap over the back of the wearer's neck. Provided on that exterior face are means forming pockets for receiving both of the wearer's hands when the handbag is carried with the strap over the back of the wearer's neck. Also provided is a pair of loops and means fastening the loops in front of the aforementioned face, the loops being adapted to receive a belt worn by the wearer.

Abstract: A multiple spindle drilling machine comprising a drilling device attached to a movable attachment stand to drill a web of a wide flange beam, the drilling device including a plurality of drills aligned in the lateral direction of the web, and a shifting device for swinging and shifting the movable attachment stand from a point on a line rectangularly intersecting a flange of the wide flange beam to the point on a line obliquely intersecting the flange of the wide flange beam with one end of the movable attachment stand being as the center.

Abstract: Manufacturing process and straightening jig for a hollow tapered rod characterized in that in mid-process of curing the resin in a fiber-reinforced resin-impregnated sheet wound around a mandrel, the mandrel is pulled out of the wound sheet in a semi-cured state or the mandrel is pulled out and again thrust into the wound sheet; then the wound sheet with the mandrel pulled out or the wound sheet with the mandrel reinserted is placed on a straightening jig and left there until the curing is completed.