Abstract: A dual ignition system is disclosed wherein adjacent first and second current interrupter means are provided for each cylinder on the ignition timing means for an internal combustion engine to furnish successive sparks during the power stroke by means of first and second distributor rotor arms which are secured in a fixed angular relationship to each other and which rotate in synchronism with the timing means to thereby more completely ignite the combustibles in said cylinder.

Abstract: A building construction element such as insulative siding is disclosed having an outer skin with an inner surface on which a plurality of individual, spaced-apart, arcuate-shaped projections are cut or gouged from the inner surface by a cutting tool means. A low density polymetric foam material is disposed over the inner surface so as to completely surround each arcuate projection to thereby securely lock the skin to the foam material after it sets.

Abstract: A buttplate is disclosed for a firearm buttstock of the type having a chamber therein for storing cartridges and the like. The buttplate has a plate member with an opening to permit access to the chamber and a channel in communication with the opening for receiving a removable cover member. The cover member is slidable in the channel over the opening to control access to the chamber and has means to maintain it in the channel across the opening.

Abstract: A heat exchanger is disclosed having a coil positioned between an outer casing member with a bottom having a sump formed therein and an inner casing member containing a rotatable shaft to which a fan is mounted. The fan has a first stage or set of blades which pushes air from the outside down over the coils and a second stage or set of blades having a pitch opposite the first set for pulling the air up through the inner casing member to exhaust. A distributor having a pump which operates on centrifugal force is also provided which draws a liquid heat transfer medium preferably water from the sump and rotates with the fan blades to effectively "sling" the medium over the coils as the fan rotates.

Abstract: A method, system and apparatus is disclosed for rapidly cooling and simultaneously maintaining a high moisture content in freshly slaughtered meat products and the like placed in a controlled environment chamber through which preconditioned air is circulated. This is achieved by limiting the air temperature rise by utilizing air flow rates past the product at a level such as to cause the air to increase in temperature from entry into the chamber to exit from the chamber by no more than approximately two degrees F. and by providing a cooling apparatus which reduces the temperature of the air while removing free water from it yet is capable of maintaining the relative humidity of the air at no less than ninety percent.

Abstract: A self-cleaning, portable vacuum device is disclosed for picking up, storing, and subsequently discharging liquid, semi-liquid or dry material. The device includes a housing having an electric motor for driving a vacuum pump which draws the material up a tubular suction member and deposits it in a holding chamber. Means are provided for delivering a cleaning fluid from a self-contained source to the area adjacent and around the end opening of the suction member and subsequently drawn up by the vacuum the entire length of the member to thereby remove and clean any remaining material from the walls thereof and deposit it in the holding chamber.

Abstract: A window construction is disclosed of the type having sashes slidable within a frame and maintained in alignment therein by means of guide strips adjacent the sashes which, due to their unique design, are capable of being removed from channels in the frame only when force is applied thereto from one side thereof to thereby ensure only removal of the sashes from one side of the frame.

Abstract: A Metal-Oxide Semiconductor (MOS) high gain amplifying stage which overcomes the inherently low transconductance, gm, of MOS transistors is described. This is achieved by using a specially configured load transistor in combination with a driver transistor. The load transistor is provided, by means of positive feedback, with a current generator which is dependent on the output voltage of the stage and has an effective negative output conductance. The positive feedback is achieved by connecting an appropriate attenuation stage between the output and the input of the load transistor. By the cancellation of output conductances between the driver and load transistors, a near infinite voltage gain can be achieved despite resistive loading at the output of the amplifier. The MOS amplifying stage has application in amplifiers, comparators and oscillators.

Abstract: A method of taking an X-ray photograph by using a cassette containing an X-ray film and a stimulable phosphor sheet maintained in close contact with each other in a light shielding case. When the cassette is exposed to X-rays through an object, an X-ray transmission image of the object is recorded on the stimulable phosphor sheet and, at the same time, the X-ray film is exposed to light instantaneously emitted from the stimulable phosphor sheet upon exposure to X-rays to record a photographic latent image of the X-ray transmission image of the object on the X-ray film. The X-ray film may be provided with an emulsion layer only on the side facing the stimulable phosphor sheet, or may be provided with emulsion layers on both sides. In the latter case, an intensifying screen may be positioned on the side of the X-ray film opposite to the stimulable phosphor sheet.

Abstract: A reproducing stylus for a record having a sound groove, said stylus formed by removing front and back portions of its contact area with the sound groove to obtain an edge line portion having an orientation perpendicular to the direction of record travel and a width d where the effective radius of curvature of the stylus tip is approximately 1/2 d. The edge line portion is formed by reciprocally moving and grinding the tip on a grinding groove.

Abstract: An ionic activity measuring device comprising a substrate provided with at least one opening for receiving a terminal made of a metal layer or a metal layer and a water insoluble metal salt layer, an ion selecting layer positioned on or in the substrate, and at least one liquid receiving hole for bringing liquid into contact with the ion selecting layer at the point vertically aligning with the opening in the substrate. The liquid receiving hole is formed in a porous bridge positioned on the ion selecting layer or on a bridge supporting material which is discrete from the ion selecting layer, or is formed in the substrate. The substrate may be a flexible film, and the device may further comprise a film feeding housing provided with a shaft for feeding the film and a film receiving housing provided with a wind-up shaft.

Abstract: In a twin screw extruding machine, a reduction gear system comprises a casing, an input shaft and two output shafts supported by said casing, each in alignment with a respective one of said screws. A respective first pinion is fitted to each output shaft, these first pinions being offset relative to one another in the axial direction. The first pinion on each of the output shafts is a helical pinion so as to develop a component of force in the axial direction opposite a reaction to the thrust exerted by the associated screw of the extruding machine. Two first helical gears mesh with the first pinion on each of said output shafts at diametrically opposite points thereon. A respective second helical pinion meshes with each first helical gear. Each of the second helical pinions is keyed to a respective thrust shaft. There is a respective thrust bearing at one end at least of each thrust shaft. A respective second helical gear is keyed to each thrust shaft.

Abstract: A rare earth element activated complex halide phosphor represented by the formulaBaF.sub.2.aBaX.sub.2.bMgF.sub.2.cMe.sup.I F.dMe.sup.II F.sub.2.eMe.sup.III F.sub.3 :fLnwherein X is at least one halogen selected from the group consisting of Cl, Br and I, Me.sup.I is at least one alkali metal selected from the group consisting of Li and Na, Me.sup.II is at least one divalent metal selected from the group consisting of Be, Ca and Sr, Me.sup.III is at least one trivalent metal selected from the group consisting of Al, Ga, Y and La, Ln is at least one rare earth element selected from the group consisting of Eu, Ce and Tb, and a, b, c, d, e and f are numbers satisfying the conditions of 0.90.ltoreq.a.ltoreq.1.05, 0.ltoreq.b.ltoreq.1.2, 0.ltoreq.c.ltoreq.0.9, 0.ltoreq.d.ltoreq.1.2, 0.ltoreq.e.ltoreq.0.03, 10.sup.-6 .ltoreq.f.ltoreq.0.03 and c+d+e.noteq.0.

Abstract: A quarter-window for a vehicle is hinged to the center pillar of the vehicle by way of a hinge. The center pillar is provided with a holder having a hinge receiving opening and welded to the center pillar. The hinge is inserted into the hinge receiving opening of the holder by moving the window-hinge assembly forwardly with respect to the vehicle body and the hinge is fixed to the center pillar by a bolt from outside the vehicle body at the portion projecting forwardly from the hinge receiving opening. Rearward movement of the window-hinge assembly is limited so that the hinge cannot be withdrawn from the holder even if the bolt is removed from the center pillar.

Abstract: A radiation image storage panel comprises a substrate and a stimulable phosphor layer provided on the substrate. At least a part of the edges of end faces of the radiation image storage panel on the substrate side is chamfered. At least the end face of the radiation image storage panel including the chamfered edge is covered with a polymer film.

Abstract: An apparatus for winding strand of glass fiber filaments is disclosed. The apparatus comprises at least one takeup collet on which a strand of glass fiber filaments is wound, a guiding mechanism for guiding an end portion of the strand which has started being drawn off from a spinning bushing to a predetermined position below the spinning bushing on a stream of a water, and an auxiliary winder mechanism rotatable for catching and winding the guided end portion of the strand. The auxiliary winder being moved toward said takeup collet when the end portion of the strand is under a condition capable of being transferred onto the takeup collet for bringing the strand into contact with the takeup collet within a winding zone of the takeup collet. An associated method therefor is also disclosed.

Abstract: Equipment (3) for centrifugal casting from a crucible (5) into a mold (8) is modified by the addition of agitation means (19) movable relative to the crucible (5) and a heating furnace (30) which is movable relative to the mold (8) in order to heat the latter, before casting, to a temperature close to that of the alloy in the thixotropic state.

Abstract: A rear earth yellow to red emitting phosphor exhibiting the sublinear characteristics when the current density of an excitation electron beam is increased. The phosphor is represented by the general formula:(Ln.sub.1-x-y,Eu.sub.x,Ce.sub.y).sub.2 O.sub.2 Sin which Ln is at least one of yttrium, gadolinium, lanthanum and lutetium, x is a number satisfying 10.sup.-4 .ltoreq.x.ltoreq.9.times.10.sup.-2, preferably 10.sup.-2 .ltoreq.x.ltoreq.8.times.10.sup.-2, and y is a number satisfying 10.sup.-6 .ltoreq.y.ltoreq.2.times.10.sup.-3, preferably 2.times.10.sup.-6 .ltoreq.y.ltoreq.10.sup.-3. It exhibits a wide reproduced color range, and free of color drift at a high current. The phosphor is suitable for use in a multi-color cathode ray tube and a multi-color low-velocity electron excited fluorescent display device, and makes it possible to realize a high-performance electronic display unit.

Abstract: A radiation image storage panel comprising a substrate, a fluorescent layer provided on the substrate and composed of a binder and a stimulable phosphor dispersed therein, and a protective layer provided on the fluorescent layer. The panel is edge-reinforced by coating the edge faces thereof with a polymer material comprising polyurethane or acrylic resin.

Abstract: The idling speed of an internal combustion engine is controlled by controlling the position of a control valve disposed in the intake system of the engine to control the amount of intake air fed to the engine. A desired idling speed is determined according to the operating condition of the engine and the control valve is moved to a temporary target position which is expected to be suitable to obtain the desired idling speed. Then feedback control is carried out to converge the actual idling speed to the desired idling speed. When the actual idling speed is finally equalized to the desired idling speed, the actual position of the control valve at that moment is detected and memorized to be adopted as the temporary target position for the same operating condition in later control of the idling speed.