Abstract: An MPX stereophonic demodulation switching circuit having first and second identical switching circuits adapted to transmit a composite input signal to respective output terminals. First and second switching elements are connected respectively between the junction points of resistors in first and second transmission paths in each switching circuit, and a reference voltage line. A voltage follower circuit is provided to produce a reference voltage. Groups of resistors are connected in parallel between the output terminal of the voltage follower and one respective output terminal. Third and fourth switching elements are connected respectively between the connection points of the resistors in each group of resistors and the reference voltage line in each switching circuit. Opposite pairs of switching elements in the two switching circuits are controlled to be alternately rendered conductive and non-conductive.

Abstract: A vertical steam separator-superheater which has a common casing (1) enclosing a lower separating portion (3) and an upper superheating portion (4). The separator-superheater includes an axial dry steam inlet zone, nests (16, 17) of superheating tubes disposed in envelopes spaced out round the central zone and fixed to a thin flexible casing (30) which is itself fixed to the upper portion of the common casing and an outer superheated steam collection zone (18). The lower portion includes a wet steam inlet chamber (5) and separators grouped in two coaxial truncated pyramide (10, 11).

Abstract: An automatic aperture control device adapted to be fitted in a lens barrel of an automatic aperture control camera in which the aperture value is controlled in accordance with the stop position of the camera. Pairs of aperture blades and intermediate levers are pivotally mounted on a support ring with a first drive shaft of each intermediate lever mounted in a corresponding aperture of an opening and closing ring and a second drive shaft of each intermediate levers slidably mounted in an elongated groove formed in a corresponding aperture plate. The elongated groove is formed such that the amount of variation of an outer radius of the aperture blade is minimized with a result that smooth and precise aperture control is achieved over the entire range of aperture values.

Abstract: Resinous substance suitable for use as film-forming component in anti-corrosive and can-coating paint and varnish compositions, which consists of the product obtained by reacting a normally solid polyepoxide with cashew nut oil in such amounts as to ensure equivalence between the phenolic hydroxyl groups of the cashew nut oil and the epoxy groups of the polyepoxide, and modifying the resulting reaction product with fatty acids having at least 8 carbon atoms per molecule, using a molar ratio of from 0.1:1 to 0.8:1 between said fatty acids and the cashew nut oil used in the reaction with the polyepoxide.

Abstract: A color photographic process is described for a silver halide photographic material having at least a silver halide emulsion layer containing a dye-forming coupler, comprising developing in a color developer solution containing components (1) an aromatic primary amino color developing agent, (2) a 1-aryl-3-pyrazolidone compound having two substituents at the 4-position, and (3) at least one compound selected from compounds represented by formulae (I) and (II): ##STR1## wherein X represents a hydrocarbon group having 1 to 6 carbon atoms; R represents a carboxylic acid group, a water-soluble carboxylic acid salt group, a water-soluble carboxylic acid ester group, or a water-soluble carboxylic acid amide group; m is 1 or 2; and n is 0 or 1; and then fixing by an acid hardening fix solution.

Abstract: A system of sorting elongated pieces such as asparagus, wherein each of the elongated pieces are successively conveyed by a conveyer and detected as a still image by a sensor such as a TV camera. In processing a signal representative of the still image a stem diameter of the piece and a ratio of the spike maximum diameter of the piece to the stem diameter are obtained as sorting out factors by calculation. When the calculation values of the sorting out factors satisfy predetermined reference values, the piece is further sorted out according to size. The stem diameter is measured at a position which is spaced from the cut end of the stem by a predetermined dimension toward the spike thereof.

Abstract: A silver halide photographic light-sensitive material having at least one silver halide photographic emulsion layer comprising substantially surface latent image type silver halide grains, and containing in said photographic emulsion layer or at least one of other hydrophilic colloid layers a compound represented by the following general formula (I): ##STR1## wherein R.sup.1 represents a hydrogen atom, an aliphatic group which may be substituted or an aromatic group which may be substituted; Ar represents a divalent aromatic group which may be substituted; Y represents a divalent linking group; n represents 0 or 1; R.sup.2 represents a hydrogen atom, an aliphatic group which may be substituted or an aromatic group which may be substituted; and Z represents a nonmetallic atomic group necessary to form a 5-membered or 6-membered heterocyclic ring together with the ##STR2## linkage.

Abstract: A control device for an elevator, which is made up of a position detecting device for detecting the position at which rotary elements such as the armature of an electric motor and sheaves produce vibration torque and a cancellation signal generating circuit. The circuit is employed for generating a cancellation signal to cancel the vibration torque in response to the output of the position detecting means. A control circuit is used for applying current necessary for cancelling the vibration torque to the motor by receiving the cancellation signal. Even if the vibration is caused by the eccentricity of the rotary elements or by the torque ripples generated by the armature of the motor, it is not sensed by the persons in the elevator cage.

Abstract: 5-nitro-imidazole derivatives of the formula ##STR1## in which R.sub.1 is hydrogen, methyl, ethyl or phenyl, n is 2 or 3, and R.sub.2 is methyl, ethyl, carboxymethyl or carboxyethyl, and the pharamceutically acceptable acid addition salts thereof, useful as antiprotozoics.

Abstract: When a document is scanned, for example in a facsimile transmitter, an image analysis signal is formed. This signal has a level which varies between a maximum black level and a maximum white level and it is converted into an on/off (e.g. black and white) signal by comparison with a threshold. For good results on backgrounds of various tones it is necessary for the threshold to vary. The present pulse-forming circuit has a first detector 2 arranged over each scan line to detect and store a background level signal .DELTA.. It has a second detector 3 arranged over a few successive image points to detect an average value signal V'. These signals are combined by threshold determining circuit 4 to generate a threshold V.sub.d such that V.sub.d =K.DELTA.+K'.DELTA. where K and K' are two constants satisfying the relationships:0.ltoreq.K<1;0<K'<1; and0<K+K'<1, e.g. K=1/3 and K'=1/2A comparator 1 performs the on/off conversion of the analog analysis signal V.sub.a into a binary pulsed signal V.sub.

Abstract: A photographic light-sensitive material containing in at least one layer a compound represented by the following formula:R.sub.f --O--CH.sub.2 CH.sub.2 O).sub.n CH.sub.2 CH.sub.2 --Ywherein R.sub.f represents a perfluoroalkenyl group containing 3 to 12 carbon atoms, n represents an integer 3 to 50, and Y represents a hydroxy group or an organic residue containing 1 to 18 carbon atoms.

Abstract: A furnace is described which comprises an insulated muffle comprising a ceramic fibrous body into which work pieces may be directly introduced through an opening. A closure member is arranged to close the opening, and means are provided for energizing a coiled heating element disposed in an open channel within the body and for controlling the rate at which the muffle is heated. The opening is arranged at the top of the muffle so as to ensure its rapid cooling subsequent to removal of the closure member therefrom. To enable the muffle to withstand rapid cooling, and in particular to retain the heating element in position, a plurality of strips of ceramic fibrous material are cemented diagonally across the top of the open channel. The closure member may be latched in the closed position by atmospheric pressure as the result of evacuating the interior of the furnace.

Abstract: An excavator with articulated arms has a self propelled truck which rotatably supports a platform. The first arm is articulated by a lateral pivot pin near a peripheral edge of the platform, its pivotal movement about the lateral pivot pin being controlled by a jack itself articulated at one end to the platform near the lateral pivot pin. The opposite end of the jack is articulated to one end of each of a pair of levers, the outer end of one lever being articulated by a common pivot to a central portion of the first arm while the outer end of the second lever is articulated to the platform near the lateral pivot pin. When the platform is substantially horizontal and the first arm is fully raised, the vertical projections of both levers lie within the platform. At the free end of the first arm is articulated one end of the second arm, an excavating member such as a bucket scoop being articulated to the opposite end of the second arm.

Abstract: An electronic sound generator is developed for generating a sound similar to that of ANGKLONG (Indonesian terms), which comprises a circuit for generating a series of consequtive rectangular waves. A plurality of envelope wave generation circuits each produce an envelope wave having the same repeating cycle as that of each said rectangular wave and, one or more sound source circuits are used for generating signals substantially equal to the output waves of angklong, circuits in each of which an output of a sound source circuit is modulated by the relevant envelop wave. A loudspeaker sounds the modulated signal as a musical sound. In a record embodiment the sound generator further comprises a first gate to which the modulated signal is directly applied, a second gate is connected in series with the volume and/or tone control circuit, means for opening said first and second gates alternatively and a means for combining the outputs of said first and second gates to provide a musical sound from the loudspeaker.

Abstract: Apparatus for maneuvering a ship having Z-type propeller structure. A maneuvering handle provides a proportional relationship of ship speed and ship direction with its inclination angle and rotation direction respectively. A generally cylindrical rotation frame is rotatably supported by a stationary frame, a rotation shaft is disposed along the diametrical direction of the rotation frame, and a maneuvering handle is positioned at the approximately central portion of the rotation shaft. The lower end of the maneuvering handle is connected to the rotation shaft. The rotation shaft is rotated about its axis by the pivotal movement of the handle. Furthermore, a hollow shaft is rotatably disposed coaxial with the rotation frame. The hollow shaft is provided with first and second central gears. A central shaft rotatably disposed in the hollow shaft has one end provided with an ahead-astern changing gear and the other end provided with an arm member.

Abstract: A binding device for hoses floating on the water surface, particularly, for a plurality of hoses arranged in parallel and floating on the water surface and connecting adjacent two hose lines by chains, comprising a resilient cylindrical cushioning body having a center bore surrounding the chain and including a buoyant member and reinforcing element embedded therein.

Abstract: N-Tetradecyl formate has been found to be effective as a sex pheromone mimic for disrupting the reproductive cycle of insects, especially the Heliothis complex which includes Heliothis zea (corn earworm), Heliothis virescens (tobacco budworm), and Heliothis armigera. The compound and compositions containing the compound n-tetradecyl formate may be applied to crops which are subject to damage by such insects in any suitable manner, for example, in sprays, dusts and powders. Particularly effective compositions comprise polymeric particles or flakes containing n-tetradecyl formate. The particles or flakes may have an adhesive coating so that upon application the particles become attached to the upper leaves, stalks, etc. where the insects tend to be more concentrated.

Abstract: A method for preparing an antigen comprising a peptide-protein complex which comprises reacting a peptide represented by the general formula (I) ##STR1## wherein m is 0 or 1, as a hapten, with a protein as a carrier in the presence of a dialdehyde represented by the general formula (II)OHC--(CH.sub.2).sub.n --CHO (II)wherein n is an integer of 1 to 5 and a method for preparing an antibody specific to pancreatic glucagon comprising administering the above described antigen to a mammal and recovering the antibody produced.

Abstract: A device for bending a medical instrument inserted into the body cavity having a flexible cylindrical coil formed by winding an elastic thin wire. The flexible cylindrical coil has a coarsely wound portion at one end portion thereof, that is designed by changing configuration or material so that one side of the coarsely wound portion is different in cross sectional area from the other side which is diametrically opposite. When a pulling string directly or indirectly fastened to the coarsely wound portion of the flexible cylindrical coil is operated, the turns of said flexible cylindrical coil are brought closer to each other on the side of the coarsely wound portion greater in torsional strength to thereby bend the one end portion of the flexible cylindrical coil towards the side of the coarsely wound portion.

Abstract: A method of forming an extremely high-contrast negative photographic image which comprises image-wise exposing a photographic light-sensitive material comprising a support having thereon a mono-disperse silver halide emulsion layer containing surface latent image type silver halide grains and also containing a compound represented by the following general formula (1):R.sup.1 NHNHCOR.sup.2 (I)wherein R.sup.1 represents an aryl group, R.sup.2 represents a hydrogen atom, a phenyl group or an unsubstituted alkyl group having 1 to 3 carbon atoms, and then processing the exposed light-sensitive material in the presence of a compound having a thioamido moiety in the molecule thereof.