Abstract: A compound represented by the formula ##STR1## wherein X is hydrogen or a substituent; R.sup.1 is an optionally substituted hydrocarbon residue; R.sup.2 and R.sup.3 are respectively hydrogen or a substituent; and ----- shows a single bond or a double bond, or a pharmacologically acceptable acid addition salt thereof, has an analgesic action and is useful as a medicine.

Abstract: A single-component developing apparatus comprising a developer holding member having a peripheral surface, a power supply section applying an AC developing bias voltage to the developer holding member, the AC developing bias voltage having a waveform with predetermined minimum value, maximum value and period, an electrostatic latent image receiving member opposing the developer holding member across a gap having predetermined width, a developer supplying section supplying a developer to the developer holding member, and a developer regulating member forming developer into a thin layer on the peripheral surface of the developer holding member by pressing on the developer holding member.

Abstract: An optical projection apparatus comprising, in this order, a radiation source (30), a liquid crystal display panel (33) and a projection lens (35). By arranging the axis of a projection lens portion (21 ) at an angle of substantially 90.degree. with the axis (L) of the remaining portion (29a), a compact apparatus is obtained, the projection axis of which can easily be set, by rotating the projection lens portion around an axis is parallel to the remaining portion axis.

Abstract: A method for changing spools in which a sheet continuously supplied to a reel drum is wound onto a new spool, comprising the steps of bringing the new spool held on an arm at a waiting position into contact with the reel drum; cutting the center part of the sheet with two cutting devices along two approximately parallel cutting lines in the running direction of the sheet at a location on the reel drum upstream in the running direction of the sheet; supplying an adhesive to an area between the cutting lines and letting the adhesive adhere onto a surface of the new spool; and moving said two cutting devices toward the two respective edges of the sheet so as to cut the sheet into a triangular shape.

Abstract: A coating apparatus for applying coating liquid onto a web which is being transported as wrapped around a backing roller includes a chamber from which the liquid is applied to the web and a blade for scraping the applied coating liquid into a film having a constant thickness. A partition plate divides the inside of the chamber into upstream and downstream sections with respect to the direction of travel of the web. A plate-like body resiliently held in contact with the web is mounted to an upper portion of the partition plate, and a plurality of holes are formed in a lower portion of the partition plate.

Abstract: A portable liquid-crystal TV set with a video recorder/player has a cover portion and case portion which are arranged so as to be foldable. The case portion incorporating a video-tape cassette holder and a recorder/player portion for cooperating with the video tape. The cover portion being provided at its inner surface with a small-sized liquid-crystal TV screen and a loudspeaker. Reception of the TV broadcast or monitoring of the reproduction from the video tape being performed with the cover portion being open. A plurality of rows of switch buttons being provided so that operation of the video recorder/player portion, which does not need the liquid-crystal TV screen, can be carried out with the cover portion being closed.

Abstract: The present invention provides an improved method for producing compositional material for a low melting point metal casting equipment, wherein said composition does not cause large cracks during operation even if there is a reduction in its physical strength resulting from the non-use of reinforcing asbestos fiber.

Abstract: The present invention provides an improved method for producing compositional material for a low melting point metal casting equipment, wherein said composition does not casue large cracks during operation even if there is a reduction in its physical strength resulting from the non-use of reinforcing asbestos fiber.

Abstract: In an epitaxial growth method of this invention, a first gas consisting of a hydrogen diluted gas containing a Group V element is continuously flowed on a monocrystalline substrate that is placed in a reaction chamber, the monocrystalline substrate is arranged in a gas mixing region where the first gas and a second gas containing a halogenide of a Group III element are mixed adjacent to the monocrystalline substrate, and a Group III-V compound semiconductor is grown on the monocrystalline substrate.

Abstract: In an epitaxial growth method of this invention, a first gas consisting of a hydrogen diluted gas containing a Group V element is continuously flowed on a monocrystalline substrate that is placed in a reaction chamber, the monocrystalline substrate is arranged in a gas mixing region where the first gas and a second gas containing a halogenide of a Group III element are mixed adjacent to the monocrystalline substrate, and a Group III-V compound semiconductor is grown on the monocrystalline substrate.

Abstract: An automatic transmission control apparatus detects an abrupt loss of vehicle speed from the speed sensor due to failure of the speed sensor. The control apparatus detects a condition of the brake operation so that the abrupt loss of the vehicle speed is detected for transmission control purposes when the brake is under non-operating conditions.

Abstract: An automatic transmission control apparatus detects an abrupt loss of signal from the speed sensor due to failure of the speed sensor and shifts the automatic transmission to a higher gear ratio. The control apparatus detects the engine rotation and the position of the shift lever so that when the engine rotation is under a predetermined level the control apparatus allows the automatic transmission to be shifted by the position of the shift lever.

Abstract: The present invention provides an improved compositional material for a low melting point metal casting equipment and a method for producing the same, wherein said composition does not cause large cracks during operation even if there is a reduction in its physical strength resulting from the non-use of reinforcing asbestos fiber.This material actually has a durability equivalent to/or greater than that of products reinforced with asbestos fiber.

Abstract: A liquid sealant of the aqueous emulsion type to be delivered in foamed state into a pipeline requiring leakage repair and/or prevention. A large part of this sealant is drained from the pipeline, and the part of the sealant remaining on inner walls of the pipeline is allowed to cure. The sealant contains coagulations of weakly cohering fine particles of inorganic oxide at less than 5 percent, and the particles have diameters not exceeding 0.05.mu..

Abstract: A pipeline needing leakage repair and/or prevention is filled with a liquid sealant in foamed state of the aqueous emulsion type. Then an excess amount of the sealant in the center of the pipeline is drained from the pipeline, and the sealant remaining on the interior wall of the pipeline is allowed to cure wherein the sealant contains fine particles of inorganic oxide weakly adhering to one another into aggregations, said aggregations easily breaking into such fine particles that they can enter and plug fine cavities of the interior of said pipeline.

Abstract: A one step method of applying a sealant onto the inside surface of a pipe, such as a gas pipe, to repair any defective portions that are likely to cause a leak and should be repaired. The sealant is applied and it is then dried and solidified to seal the leak portions of the pipe. Preferably, an injection means is used for supplying the sealant in a cylindrical shape so that every portion of the inner surface of the pipe will be coated.

Abstract: The asbestos-free calcium silicate heat-resistant material composition, comprises:(A) 100 parts by weight of a mixture of lime and siliceous material having a CaO/SiO.sub.2 mole ratio of 0.6-1.2;(B) 20-170 parts by weight of xonotlite obtained by hydrothermal synthesis;(C) 15-150 parts by weight of fibrous wollastonite; and(D) water in an amount of 2-8 times as much as that of the total solid contents and is produced by a method which comprises the steps of:(i) molding a slurry of a uniform mixture of that recited above in (A) to (D).(ii) steam curing said molded body in an atmosphere of steam under a pressure of not less than 6 kg/cm.sup.2 to react the siliceous material with the lime; and(iii) heat treating said steam cured product to remove water therefrom at a temperature of not lower then 100.degree. C. under atmospheric pressure.

Abstract: A method of internally lining an installed pipe, which may be used for various types of pipelines such as those for transmitting town gas, natural gas, petroleum, and water. According to the invention, a flexible liner tube is placed inside an installed pipe, and then a liquid adhesive agent is introduced between the pipe and the tube. In this condition, an object is passed through the tube whereby the liquid adhesive agent acts to make the tube adhere to the interior wall of the pipe.

Abstract: This invention relates to a method for making an asbestos-free calcium silicate board, which comprises preparing a slurry of a mixture of silicic acid material, lime material, fibrous wollastonite and pulp with a large amount of water, forming the slurry into a raw board by means of the sheet-forming technique, steaming the raw board and drying. This invention also relates to the board produced in accordance with the above method.

Abstract: A system includes a prime mover, such as an automobile engine, having operative and inoperative states; an electrical load; an accumulator or battery for operating the load; and a control system for the battery. The control system includes: a self-holding keeping relay having contacts in circuit between the battery and the load and having a resetting coil to control energization of the load from the battery; a warning device; a detecting device and a detecting switch controlled thereby responsive to a fault condition in the battery; and a changeover switch responsive to the operative state of the prime mover for operating the detecting switch. The control system is responsive to a fault condition in the battery, such as overdischarge or low electrolyte, to prevent energization of the load when the prime mover is inoperative and to enable energization of the load and operation of a warning signal device when the prime mover is operative.