Abstract: A volume control apparatus wherein a digital output from an up/down counter having a clock input terminal and an up/down control terminal is converted into an analog output by a D/A converter and used as a control input to an electronic attenuator. A rotary pulse generator produces a pulse each time it is rotated through a given operating rotation angle at either a first output terminal or a second output terminal, according to the operating direction. The output terminals are coupled to input terminals of the logic circuit, respectively, an output terminal of the logic circuit is coupled to a clock input terminal of the up/down counter, and the second output terminal is coupled to another input terminal of the logic circuit and to an up/down control terminal of the up/down counter.

Abstract: A casing of stretched plastic material, whether or not filled with a fluid such as gas or air, is wound with some tension about a smooth heated mandrel. During its curved path of travel said casing is on the one hand subjected to a contact or a radiation heat and on the other hand to a convection heat, said contact radiation heat prevailing during a period of time which is greater than that of the convection heat, thus causing the inner curved portion of the said casing to set during the time that the outer portions of the casing windings have already cooled down, so that smooth curved surfaces are obtained.

Abstract: A multi-stage, moving bed-type, adsorption device which comprises a unit made of an adsorbent particles-filled chamber which is defined by two fore and rear louvers, the distance therebetween being larger downwardly, two fore and rear lower walls extending downwardly from the lower ends of the fore and rear louvers, respectively, the distance therebetween being narrower downwardly, and two right and left side walls, an inverted V-shaped rectifying body extending horizontally from the right side wall to the left side wall and a rectifying plate extending vertically downwardly from the top of said rectifying body, said rectifying body and said rectifying plate being located in the lower region of the said chamber, a plurality of said units being placed one upon another and communicated with each other by a coupling means consisting of two vertical fore and rear walls and side walls, the distance between the louvers of the lower unit being larger than that of the upper unit adjacent thereto; a gas-circulating ve

Abstract: An electrophotographic element comprising an electrically conductive substrate and a monolayer or multilayer type photo-sensitive layer, superposed thereon, containing as an effective ingredient a disazo pigment having the general formula (I): ##STR1## wherein Ar.sup.1 and Ar.sup.2 each represent a phenylene group. However, when Ar.sup.1 is 1,4-phenylene group Ar.sup.2 is 1,2- or 1,3-phenylene group; when Ar.sup.1 is 1,3-phenylene group Ar.sup.2 may be any one of 1,2-, 1,3- and 1,4-phenylene groups; and when Ar.sup.1 is 1,2-phenylene group Ar.sup.2 is 1,3-phenylene group. X represents aromatic rings such as benzene ring, naphthalene ring and the like, hetero rings such as indole ring, carbazole ring, benzofuran ring and the like or their substitution products; Ar.sup.

Abstract: N-aryl oxazolidinones, oxazolidinethiones, pyrrolidinones, pyrrolidines and thiazolidinones are disclosed. These compounds possess antidepressant activity.

Abstract: A hydraulic nailing pistol with force or energy-accumulators for reciprocally driving a nail driver (5) formed as a piston with associated piston rod (5). The outer end of the rod is intended for applying to the nail head of the nail to be driven. The piston is arranged in a hydraulic cylinder (26) and the end of the cylinder facing away from the nailing end of the rod is connected, by the intermediary of an openable and closeable valve (3), to a first hydraulic operating cylinder (A) provided with a piston (4), actuable by a force or energy-accumulating component, e.g. a spring (6). The other end of the hydraulic cylinder (26) is connected to a second hydraulic operating cylinder (B), provided with a piston (11), also actuable by a force or energy-accumulating component, e.g. a spring (12). The first operating cylinder (A) with its cylinder (4) is adapted for driving the driver forwards, and the second operating cylinder (B) with its piston (11) is adapted for providing the return movement of the driver (5).

Abstract: A surface-acoustic-wave parametric device characterized in that a width of a parametric interaction region in a direction perpendicular to the propagation direction of surface acoustic wave is varied so as to correspond to a desired frequency characteristic.

Abstract: A lock having a key-operated rotary plug supported within a shell. The rotary plug has an eccentric tenon which projects axially from the inner end thereof, which tenon is engaged within a transverse slot formed in the opposed face of the dead bolt to cause reciprocal slidable displacement thereof in a direction perpendicular to the rotational axis of the lock. The rotary plug also has a second eccentric tenon projecting axially from the inner end thereof, which second tenon is angularly spaced a substantial distance from the first-mentioned tenon. The bolt has a second slot which is closely adjacent but spaced from the first-mentioned slot. During rotation of the plug through a selected angle, such as 180.degree., one of the tenons engages one of the slots during only a portion of the selected angle to effect linear displacement of the dead bolt through a portion of its stroke.

Abstract: A porous sheet comprising a flexible sheet in which a rigid substance is incorporated, wherein pores are formed in the sheet by breaking the rigid substance.

Abstract: The present invention provides an electrophotographic element which comprises a charge generating layer and a charge transport layer formed, in order, on an electroconductive substrate, said charge generating layer comprising a disazo pigment expressed by the general formula: ##STR1## [wherein A represents ##STR2## represents a member selected from the group consisting of benzene ring, naphthalene ring, indole ring, carbazole ring, benzofuran ring and their substitutes; Ar.sub.1 represents a member selected from the group consisting of benzene ring, naphthalene ring, dibenzofuran ring, carbazole ring and their substitutes; each of Ar.sub.2 and Ar.sub.3 represents a member selected from the group consisting of benzene ring, naphthalene ring and their substitutes; each of R.sub.1 and R.sub.3 represents a member selected from the group consisting of hydrogen, lower alkyl radical, phenyl radical and their substitutes; and R.sub.

Abstract: Porous flame retarded acrylic synthetic fibers consisting of cellulose acetate and a modacrylic copolymer containing vinyl chloride and/or vinylidene chloride are produced by spinning an organic solvent solution of a polymer consisting of cellulose acetate and the above described modacrylic copolymer into a coagulation bath, primarily drawing the spun fibers at a draw ratio of 2.5.about.8.0, drying the water swelled fibers at 100.degree..about.180.degree. C. to a water content of no greater than 1.0% by weight and secondarily drawing the dried fibers under wet heat at a draw ratio of no greater than 3 times.

Abstract: A compound, 3,7,11,15-tetramethyl-2,4,6,10,14-hexadecapentaenoic acid, and a salt thereof are disclosed as a therapeutic agent for treatment of skin diseases with keratinization.

Abstract: An additive for cement comprising a granular molded product formed of a water-reducing agent composed mainly of a naphthalenesulfonic acid/formaldehyde high condensate (NSF) or salt thereof, and a carrier.

Abstract: A plotting head for use in a drawing machine comprising a housing attached to said drawing machine; a lead holding means installed for vertical movement within said housing and having a vertical through hole; a bias means disposed above said lead holding means and imparting it a continuous descending tendency; a long cover means covering said bias means; a chuck means disposed for vertical movement in the through hole of said lead holding means, provided with a vertical lead inserting hole and having at the lower part a collet portion arranged to shut for clamping the lead and open for releasing the lead depending upon the vertical movement of said chuck means; a gripping means disposed for vertical movement on the bottom wall of said housing and operating to grip the top of the lead; and an actuating means operating to allow said lead holding means to ascend against the force of said bias means.

Abstract: Derivatives of 5H-furanone-2 and 3H-dihydrofuranone-2, substituted at the 3 position with substituted phenyl and at the 5 position with substituted methyl, are prepared by various processes. The derivatives are inhibitors of monoamine oxidase and are useful for treating depression.

Abstract: An electrophotographic photoconductor comprising, on an electroconductive support material, a photoconductive layer containing a bisazo pigment having a phenanthrenequinone substituent, which electrophotographic photoconductor exhibits relatively high photosensitivity and usefullness for electrophotographic copying.

Abstract: A mixture of multiple fatty components is cooled rapidly by employing an ultra-low temperature refrigerant, whereby the mixture is converted into brittle granulates of fine particles. Each granulate is very low in mutual solubility with other components.The said granulates are heated up to the vicinity of the lowest freezing temperature amoung those of the whole compounds of the mixture and are kept at the said temperature, whereby the compound having the lowest freezing temperature is mainly melted and it is separated from the said mixture of multiple components.

Abstract: A position or movement sensor responsive to movement of a mine cage (26) in a mineshaft comprises a leaky coaxial cable (12) extending along the path of the cage, and an oscillator (40) and associated circuitry (42, 44, 14) for forming an electromagnetic standing wave in the cable. The cage carries a resonator (28) which moves adjacent the cable, causing a cyclical change in the cable characteristics as seen from a detector probe (30) at the top end of the cable. Detection and counting circuitry (32) detects and indicates movement of the cage by reference to the standing wave pattern.

Abstract: A seal for use on a noise-deadening shroud encasing an internal combustion engine, particularly the portion thereof which encases the muffler. A gap is formed between the outlet pipe for the muffler and the wall of the opening in the enclosure for the muffler. A seal is provided for this gap and includes a closure member which surrounds the exhaust outlet pipe with very little clearance therebetween.

Abstract: A method and apparatus are disclosed for degassing the pressure fluid of a hydraulic system, in which a vacuum is maintained in the free space above the pressure fluid in the fluid reservoir of the hydraulic system by a vacuum pump. The vacuum pump has a selective pumping action, by virtue of which permanent gases present in the free space are withdrawn but vapors of the pressure fluid present in the free space are not withdrawn. Pressure fluid entering the reservoir from the hydraulic system is passed over a degassing surface to promote separation of the permanent gases in the pressure fluid from the fluid. A compensating line is provided between the vacuum pump and the reservoir for returning to the reservoir the nominal amounts of pressure fluid withdrawn from the reservoir by the pump. Valves provided in all fluid lines leading to and from the reservoir maintain the vacuum in the reservoir during system shut-downs.