Abstract: A multimagazine disc player includes an array of magazines removably stored therein each for holding a plurality of discs, and a playback means movable and positionable in alignment with one of the magazines at a time for playing back a selected one of the discs contained in the magazine. The discs stored in the magazines can selectively be played back automatically, and can also easily be replaced with other discs not stored in the disc player. The multimagazine disc player also has a magazine presence/absence detecting means for detecting whether each magazine is loaded or not, so that a wasteful time which would otherwise be consumed by moving the playback means to a position where no magazine is loaded can be eliminated.

Abstract: An interference suppressor comprises an amplitude limiter (2) to which a received signal is coupled. The limiter (2) is effective, when a dominant interfering signal (f1) is present together with a wanted signal (f1), to further increase the amplitude difference between interfering and wanted signals.A signal combiner (12) is fed with the received signal and also with a signal derived from the limiter (2) via a controlled attenuator (9) and which signal is arranged as to be in phase opposition to the received signal. A phase sensitive detector (8) is responsive to the output signal from the suppressor, which is provided by the signal combiner (12), and to the signal derived from the limiter (2) for providing a control signal for the attenuator (9). The control signal is effective to reduce the amplitude of the interfering signal present in the output signal.

Abstract: A rotatable rigid material valve operator is provided having a threaded shank threadedly engaged within a threaded blind bore formed in a valve member constructed of thermo plastic elastomer having an 80-90 "SHORE" scale durometer hardness and snugly slidingly disposed within a valve body bore against rotation relative thereto, the threaded shank being rotatable relative to the valve body against axial displacement relative thereto such that rotation of the threaded shank translates into axial shifting of the valve member within the valve body bore.

Abstract: A bone nail of elastic material bent at least in its proximal end portion and insertable into the medullary canal of the bone through an impact hole formed proximal to the knee joint area of the bone has the same cross section in its distal end area as the entire nail and is provided with a flattening for forming a coupling element for the non-rotatable connection with the tool in at least one site of the nail periphery at a distance from the distal nail end, with at least the front face immediately adjacent the distal nail end via which the flattening merges with the periphery of the bone nail, preferably both opposing front faces, extending inclined to the flattening, and thus form an angle deviating from 90 degrees, peferably an angle of about 45 degrees, with said flattening.

Abstract: A pressure slip casing apparatus for producing a sanitary ware such as a toilet bowl, comprises lifting hydraulic cylinder means secured to said top member of a stationary frame; a pair of suspending devices supported by a base plate attached to said lifting hydraulic cylinder means; an interlocking mechanism for operatively connecting said suspending devices to each other; and a hydraulic cylinder device for moving a suspending devices towards and away from each other through the action of said interlocking mechanism. A mold part and a core mold part are attached to said base of said stationary frame and to the lower surface of said base plate, respectively.

Abstract: A component for cladding apertures in the fuselage of an aircraft is to be of lighter weight and more corrosion resistant as compared with known claddings. The component is manufactured of carbon fibre reinforced curable synthetic resin and comprises a base layer (2) onto which U-profiles (4, 4') and L-profiles (5, 5') are placed in spaced apart interrelationship, which during the manufacture are held in place by a grid (14) comprising angular bridge members. A vacuum foil 7 is applied over this assembly and is adhesively bonded along the edges of the base layer (2') to the supporting surface (1). The space between the vacuum foil (7) and the supporting surface (1) is evacuated and curing proceeds at an elevated temperature and pressure. After complete curing the vacuum foils (7) and the grid (14) are removed.

Abstract: The present invention provides diamino compounds and liquid crystal aligning films comprising polyimides which are obtained from the said diamino compounds represented by the general formula: ##STR1## wherein R.sub.1 indicates an alkyl group having 3 to 22 carbon atoms, R.sub.2 indicates a hydrogen atom or an alkyl group having 1 to 22 carbon atoms, and R.sub.3 -R.sub.10 indicate a hydrogen atom or a methyl group, respectively.The liquid crystal aligning films are useful for STN mode display cells in realizing a high pretilt angle.

Abstract: High strength heat-resistant low alloy steels have a chemical composition of, on weight basis, a carbon content of 0.03-0.12%, a silicon content not higher than 1%, a manganese content of 0.2-1%, a phosphor content not higher than 0.03%, a sulfur content not higher than 0.03%, a nickel content not higher than 0.8%, a chromium content of 0.7-3%, a molybdenum content of 0.3-0.7%, a tungsten content of 0.6-2.4%, a vanadium content of 0.05-0.35%, a niobium content of 0.01-0.12% and a nitrogen content being 0.01-0.05% with the balance of iron and inevitable impurities, wherein the molybdenum content and the tungsten content satisfy the relationship 0.8%.ltoreq.(Mo+1/2W)%.ltoreq.1.5%; or a carbon content of 0.03-0.12%, a silicon content not higher than 1%, a manganese content of 0.2-1%, a phosphor content not higher than 0.03%, a sulfur content not higher than 0.03%, a nickel content not higher than 0.8%, a chromium content of 0.7-3%, a molybdenum content of 0.3-1.5%, a vanadium content of 0.05-0.

Abstract: A down hole jet pump for production of fluid from a well with the jet pump being powered from a pressure source at the surface and discharging production fluid through production tubing to the surface. The down hole jet pump of this invention is retrievable by reverse flow of fluid down the production tubing to move the jet pump upwardly through the power fluid tubing to the surface. The components of the jet pump are removable and adjustable in the field without the use of special tools thereby enabling the pump to be adjusted to provide optimum operating conditions for each installation and enable interchange and replacement of parts.

Abstract: There is provided a method and device for depilating hair from various members of the human body, especially arms and legs. The device is based on a rotating head driven by suitable means, which head is provided with an abrasive surface. The method of depilating hair comprises contacting the area of the skin from which hair is to be removed with such rotating surface.The abrasive used is a fine grain one so as to minimize irritation of sensitive human skin.

Abstract: A digital signal recording and playback apparatus having a rotary heads mounted on a rotary drum capable of recording/reproducing a digital signal onto/from a magnetic tape at a tape speed which is N times as much as the standard speed while conforming to the standard track angle and length. The number of the rotary heads are increased from the standard two heads whereas the drum speed is made one half of N times standard speed and the drum diameter is made slightly larger from the standard so that the relative speed between the running tape and the rotating heads becomes equal to the standard in the double tape speed mode, and becomes twice that in the quadruple tape speed mode.

Abstract: This invention is a fluid injection spray system for use with wind machine in order to protect orchard crops from heat or frost and to dispense agricultural chemicals. In one embodiment fluid is dispensed from nozzles on risers which are arrayed about the wind machine tower. The flow of fluid to the risers is sequentially controlled. In another embodiment, fluid is dispensed from nozzles mounted on conduits on a rotating gear box. Fluid is provided from the tower via a rotating valve.

Abstract: A supporting device includes a vertical tubular support apparatus, a connecting members which is engaged with the vertical tubular support apparatus and has a plurality of lug members, a plurality of engaging members each of which is pivotally mounted to one of the lug members, a plurality of resilient apparatuses each of which is disposed in one of the engaging members and has a strap, and a plurality of legs each of which is mounted to one of the engaging members. A curved end of the strap abuts a positioning pin of the engaging member and urges it to selectively engage one of a plurality of angularly spaced notches of the lug member, so the angle of each of the legs relative to the connecting member can be adjusted for convenience of use, moving, carrying and storage, or for use on an uneven surface.

Abstract: A reclining chair is arranged having a back rest pivotably supported and mounted at its intermediate region to the upper lower and right arm portions of a base frame, a seat pivotably mounted at its rear end to the lowermost section of the back rest at a point situated lower than the intermediate back rest pivot, a foot rest pivotably mounted to and supporting the front end of the seat, and an extending member extending from the foot rest to a point lower than the pivot joint between the back rest and the seat for pivotal movement. The foot rest is sustained in sleeve-rod arrangement on the base frame.

Abstract: A cap which can be attached to a roof vent pipe to form a closure for the roof vent pipe after the usual ventilating device attached to the roof vent pipe has been removed thereby trapping hot air in the attic area of a home or other building. The roof vent cap is of one-piece unitary construction secured in place by anchoring screws which may be the same screws that secure the roof ventilator in place with the cap including three depending cylindrical flanges of different lengths which can be mounted on different diameter roof vent pipes thereby rendering the cap universal in use. The variation in length enables access to anchor screws on each of the flanges.

Abstract: A connector for connecting implements on tools such as digging devices to a boom or the like comprises a body (1, 3) having first connection elements (8, 9) enabling the body to be mounted on a carrying device, second connection elements for engaging an implement with the (1,3) in the form of spaced apart first and second recesses (12, 11) on the body. The respective connection elements are mutually oriented for mounting the connector on the carrying device with the first recess (12) opening substantially downwardly and the second recess (11) opening in a direction substantially at right angles to the direction of opening of the first recess (12). At least the first recess (12) having an entrance and being substantially closeable by a closure member (13). A fluid pressure operated piston (34, 21) and cylinder (30, 22) assembly moves the closure member (13) toward or away from a position wherein the closure member substantially covers the entrance to the first recess.

Abstract: Continuous flat unidirectional flat ribbons, which have been precut from an impregnated fiber reinforced-matrix composite tape so as to have a substantially greater width than thickness, are interlaced in over-and-under relationship in 0 degree and 90 degree directions into the form of a continuous, multi-directional seamless tube. The tube may be cut into tubular sections, which then are subjected to temporary heat and pressure so that the matrix fuses the interlaced ribbons to form an integral tube. The elongated seamless tube also may be cut into planar sections and used to form integral members of planar or contoured construction. The integral members may be formed of a single layer of the interlaced material, or of laminated construction form multiple layers of the interlaced material, with the ribbons of each layer either extending parallel, at an angle other than 0/90 degrees, aligned, or offset, with respect to the ribbons in the other layer(s).