PURPOSE:To execute minute piercing and groove working with high efficiency by irradiating a ceramics base material with an energy beam, forming a molten heat affected zone having many minute cracks and allowing an etching liquid to penetrate and eliminating the molten heat affected zone by etching. CONSTITUTION:By irradiating alumina ceramics 21 being chemically stable and having high corrosion re...

PURPOSE:To shorten elapsed time between the use of solar heat and the supply of hot water and to use the solar heat accumulated, as effect as possible by reducing the radiation thereof, by providing both a heat-accumulating reservoir wherein one hot water boiled by a heater is stored at the upper part thereof and the other hot water heated by a heat exchanger connected to a solar heat collector is...

PURPOSE:To simplify the construction of a transmission case and rationalize assembling process by securing fixedly a bearing for rotatably supporting an input shaft on the transmission case from the outside of said case enveloping the speed change gear. CONSTITUTION:A bearing 212 has the outer race fitted in a bearing seat 101 while having the engine side end face of the outer race provided in a t...

PURPOSE:To improve the life characteristics remarkably without deteriorating the quick discharge characteristics by adding the fluororesin dispersion into the dilute sulfuric acid and immersing a paste type electrode into said dilute sulfuric acid. CONSTITUTION:The relationship between the cycle life and the quick discharge characteristics was investigated by changing the quantity of the fluorores...

The device comprises a rotor formed with a circumferential groove including a widening with an apertured bottom whereat two monitoring stroboscopes are arranged, the groove being provided for engaging with the red cell and plasma exit end of a disposable bag, the other end whereof is so designed and arranged as to receive whole blood.

PURPOSE:To make it possible to effect air conditioning utilizing natural energy in summer, winter, daytime, nighttime, etc., by communicating a vent portion 16 of the room with the inlet of a heat storage tank via a changeover valve, and to derive underfloor cool air in an underfloor space to the room. CONSTITUTION:When an air outlet 3A is communicated with a vent portion RA and further a vent por...

With the creel for a spinning machine according to the invention at least two rows of rotatably suspended roving bobbins, which extend essentially in parallelism with respect to one another, are adjacently lined-up. Normally in ring spinning machines there are employed for such creels roving deflecting rods which extend horizontally in the longitudinal direction of the ring spinning machine. The r...

Heat-insulating cellular glass having a surface on which an adhesive layer and a coating layer are formed. The adhesive layer comprises a solidified mixture of water glass, and a porous substance containing polyvalent ions of metals, such as Ca, Mg, Ba and Al, and the coating layer comprises a laminate of flakes of a laminar mineral. This cellular glass is widely used as a heat-insulating material...

6-18124/A Process for the enrichment or separation of organic substance mixtures Salts of organic carboxylic acids can be separated from non-salt-type organic compounds using a semipermeable membrane consisting of a perfluorosulfonic acid polymer or a salt of such a polymer, by bringing a solution of the salts and the organic compounds in a C1-C4alkanol into contact with one side of the membrane ...

PURPOSE:To prevent heaping and blocking in an apparatus due to the formation of a neutral salt as well as to inhibit corrosion by an acid by adding 3- aminopropanol to a place undergoing severe corrosion by the acid in an oil refining or petrochemical process and increasing the pH of a liq. at the place. CONSTITUTION:In an apparatus for an oil refining or petrochemical process, especially an appar...

(S) alpha -cyano-3-phenoxy-benzyl alcohol having the formula I and a novel process for its preparation and novel intermediates.

In order to improve the flame protection effect without substantially impairing the mechanical properties of the articles covered with the flame protection agent, the flame protection agent is provided with a compound in a proportion by weight of 7.5 to 30% which contains at least one sulfo group or sulfonium ion. This compound is preferably a water soluble ammonium salt. As binder there is used a...

A method for correction of measurements of borehole parameters for errors caused by magnetic interference includes surveying the borehole in the absence of substantial magnetic interference to determine reference values for the components of the local gravitational and local magnetic field along three mutually perpendicular axes. The reference values so determined are used for downhole correction ...

The video head selecting circuit has first and second heads (SP1,SP2) for standard play and third and fourth heads (SP3,SP4) for super long play and for reading the video signals recorded on the tape. Two switches (SW1,SW2) selectively output the video signals outputted from the two pairs of the heads to amplifiers (101,102) in response to the head channel selecting signals. A com...

PURPOSE:To readily obtain the subject thick superconductive oxide film having a high critical current density by placing a thick film-shaped formed body composed of a powdery superconductive oxide performing incongruent melting in two or more steps on a substrate, keeping the material in a partially molten state and subsequently gradually cooling the partially molten material. CONSTITUTION:A thick...

PURPOSE:To obtain a Ri-based oxide superconductor thin film having the high critical current density by heat-treating a Bi-based oxide thin film prepared by a physical means at a lower temperature than the synthesis temperature of a Bi-based superconductor of 110K class by a specific temperature. CONSTITUTION:An oxide thin film prepared by a physical means such as sputtering, vacuum deposition met...

PURPOSE:To obtain a Bi-based superconductor improved in Jc without deteriorating Tc by utilizing diffusing reaction between the first oxide element constructed from at least Bi-Li-Cu-O elements and the second oxide element constructed from at least Sr-Ca-O elements. CONSTITUTION:A Bi-based oxide superconductor is produced by carrying out diffusing reaction between the first oxide element construct...

PURPOSE:To remarkably enhance the critical current density by limiting the atomic ratio of Ca/Sr in the composition of an oxide thin film in heat-treating the oxide thin film obtained by a physical means and producing a Bi-based oxide superconducting thin film containing the Sr and Ca. CONSTITUTION:An oxide thin film obtained by a physical means such as sputtering, vacuum deposition methods, etc.,...