Abstract:
A device for use with a Jacquard machine is disclosed which may eliminate the pattern cards, may be made compact in size, may find a wide application, and may considerably increase the weaving speed. In opposed relation with a plurality of needles is disposed a selection mechanism in which a plurality of solenoids equal in number to the needles are disposed in opposed relation with a plurality of armature members equal in number to the needles and interconnected therewith through wires. A control unit is adapted to selectively energize the solenoids depending upon the desired fabric patterns while the armature members are moved toward and made into contact with the solenoids in synchronism with the weaving operation of the power loom so that the selectively energized solenoids attract the armature members to hold their corresponding needles in position while the remaining needles corresponding to the de-energized solenoids are returned to their initial positions. The hooks corresponding to the needles returned to the initial positions are made into engagement with their corresponding knives in a knife box so that when the knife box is lifted, they are also lifted to lift the desired warp yarns, thereby forming a desired shed.
Abstract:
As non-ionic surface active agents are generally low in toxicity they are commonly used as additives in pharmaceuticals, cosmetics, foodstuffs, etc. However, non-ionic surface active agents which exhibit antimicrobial action or rust-inhibiting property have not hitherto been known. The present invention uses hydroxy-fatty acid amide polyoxyalkylene ether, as the active ingredients. As this substance is superior in antimicrobial action and rust-inhibiting property, the surface active agents manufactured according to the present invention exhibit not only the superior properties inherent in the conventional surface active agents, e.g., emulsifying and dispersing power, but also superior rust-inhibiting property and antimicrobial action. Further, if metal soap is added to the surface active agents, the aforementioned properties become more conspicuous.
Abstract:
In the manufacture of carboxylic acids or derivatives thereof by chemical addition, in strong acids, of carbon monoxide to corresponding raw materials such as olefins, alcohols, branched saturated compounds and other hydrocarbons, ions of metals belonging to group IB of the Periodic Table are caused to exist in said strong acids to induce formation of metal carbonyls and the raw materials are allowed to react with carbon monoxide which is the constituent part of the formed metal carbonyls. As the carbon monoxide in strong acids is consumed by the reaction of the raw materials, metal ions are bonded with carbon monoxide from the gaseous phase to form metal carbonyls again. Thus, a large quantity of carbon monoxide always remains dissolved in strong acids to permit the reaction to proceed under mild conditions, enabling the desired products to be selectively obtained in high yields.
Abstract:
A polymer capable of self-curing or cross-linking at room temperature is produced by free radical polymerization in a nonprotonic solvent of: A. i. a combination of (a) at least one ethylenically unsaturated compound having an epoxy group and (b) at least one ethylenically unsaturated compound having a tertiary amino group selected from the group consisting of an N,Ndisubstituted amino group, a pyridyl group, a quinolyl group and an isoquinolyl group or II. AT LEAST ONE ETHYLENICALLY UNSATURATED COMPOUND HAVING ONE EPOXY GROUP AND ONE TERTIARY AMINO GROUP SELECTED FROM THE GROUP CONSISTING OF AN N,N-disubstituted amino group, a pyridyl group, a quinolyl group and an isoquinolyl group, and optionally B. at least one free radical-copolymerizable ethylenically unsaturated compound other than the ethylenically unsaturated compounds (i) and (ii) and which is free of active hydrogen atoms.
Abstract:
When finely divided SHIRASU (pumice ejected from volcanoes and the secondary deposit of such pumice) is roasted at a temperature in the range of from about 800* to about 1200*C, the vitreous particles contained in said SHIRASU foam and consequently produce light-weight hollow glass microspheres. The hollow glass microspheres so produced are superior to conventional glass microspheres especially in their resistance to heat and can therefore be combined with metal, carbon, as well as with cement and other materials to produce novel lightweight composites.
Abstract:
A method for treating waste plastics characterized by melting waste of plastics derived from at least one monomer selected from aliphatic and aromatic unsaturated hydrocarbons, bringing the melt into contact with a particulate solid heat medium in fluidized state maintained at a temperature of 350*-550*C to effect pyrolysis of the melt, and thereafter collecting and condensing the resulting gaseous product to recover a mixture of liquid hydrocarbons. Such mixture of liquid hydrocarbons contains ethylenically unsaturated compounds useful as starting material for the production of plastics, such as various olefins and styrene.
Abstract:
In a plating process wherein a DC electrical potential is applied in a rare gas atmosphere between a positive electrode (anode) which is a boat containing a coating material and a negative electrode (cathode) which is an article subjected to plating so that glow discharge is induced and then the coating material in the boat is vaporized and the vaporized coating material is deposited fast on the article being plated, the present invention provides an improvement which comprises disposing a focusing tube and a dispersing torpedo, both of which are subjected to positive electrical potential, between the two electrodes. The electric lines of force formed between the two electrodes are focused by the focusing tube and dispersed by the torpedo. The pattern in which the electric lines of force are dispersed can easily be controlled by the position and shapes of the focusing tube and the torpedo and the magnitude of electric potential involved. By disposing the focusing tube and the torpedo so as to cause the electric lines of force to concentrate at specific parts of the article being plated, therefore, the vaporized and ionized coating material can be deposited fast on the article along the bundle of electric lines of force. Consequently, possible straying of the vaporized coating material can be minimized and, at the same time, the distribution of the film thickness of coating material to be deposited on the article can be freely adjusted.
Abstract:
An Alpha , omega -glycol, a primary alcohol or an aliphatic compound having one or two secondary alcohol groups is dissolved in a solvent. The resulting solution is heated to 10* - 70*C and brought into contact with an ozone-containing gas. Then, the solution is elevated to 70* - 110*C and brought into contact with an oxygen-containing gas. By thus oxidizing the starting material, there is formed in the solution a dibasic acid or a fatty acid; the former acid occurs where the starting material being used is an Alpha , omega -glycol and the latter acid occurs where it is either a primary alcohol or an aliphatic compound having one or two secondary alcohol groups. The dibasic acid or fatty acid thus formed within the solution can be isolated by removing the solvent from the solution.