Abstract: A kaleidoscopic peep-show viewing device comprises an outer box of tubular shape with open opposite ends and with inscriptions printed on the inner surface thereof, an inner box adapted to slide telescopically within the outer box, and an optically reflecting member of peaked solid shape having a base, vertex, and mirror surface therebetween and joined at its base to one end of the inner box to slide thus unitarily therewith, the printed inscriptions, when viewed through one open end of the outer box as reflected images on the mirror surface, being optically collected thereby into single coherent pictures successively appearing and disappearing as the inner box is thus slid.

Abstract: In a bridge circuit consisting of diodes connected in each circuit branch in a forward direction from one of a pair of opposing terminals to another with a current flowing through these diodes, impedance between a second opposing pair of terminals varies in correspondence to the magnitude of the constant current. The invention utilizes this phenomenon and provides a voltage-controlled filter employing this bridge circuit as an impedance element for determining its frequency region and thereby being capable of controlling its frequency region by voltage controlling. A primary passive low-pass filter is described as a preferred example of the invention. The invention further provides a voltage-controlled filter having the bridge circuit provided in a negative feedback loop of an amplifier in an active filter circuit and thereby being capable of controlling selectivity Q by controlling the gain of the amplifier by voltage controlling.

Abstract: A method for settling suspended glass particles from a slurry containing small amounts of a substance, which substance is preferentially adsorbed to the surface of the suspended glass particles, and which adsorbed substance facilitates centrifugal sedimentation of the glass particles without substantially altering the colloidal nature of the suspension. In particular, a method for forming a glass film on a semiconductive wafer or circuit, especially mesa etched structures, including the step of adding a small amount of hydrogen peroxide to the glass slurry before sedimentation of the glass film.

Abstract: An electronic watch in a watch case comprising a crystal oscillator, an integrated circuit chip having at least an oscillator circuit and display device, a battery, at least two magnetically operated switches for controlling the watch functions, and one or more magnets movably coupled to the watch case for operating the switches. The magnets and the switches are arranged such that the switches are operated by manually moving the magnet to magnetize any of the switches, thereby increasing the water-proof competency with easier handling.

Abstract: A movement-sensitive switch for detecting small movements comprising electrically conductive top and bottom hollow members joined together along the peripheries thereof with insulation disposed thereinbetween forming a hollow chamber. Disposed within the hollow chamber is a balance weight having an acruous bottom section and a top section. The top section is coupled to an upper-extending pin which extends up into the hollow interior of the top member of the chamber. The balance weight and pin are disposed in the chamber and arranged and configured such that the arcuous bottom section is engaged with only the bottom member of the chamber such that when the chamber is moved, the pin is caused to engage the top member thereby electrically joining the top member and the bottom member together. When the balance weight returns to its equilibrium position, the pin is caused to decouple itself from the top member thereby again electrically isolating the top member from the bottom member.

Abstract: A recipe apron comprising a plurality of rings attached to the apron, a plurality of recipe sheets hanging from the rings and a plurality of transparent cover sheets attached to the apron such that the recipe sheets can be flipped through and the recipe sheets are held in place and protected from stains. Each of the recipe sheets has a recipe printed thereon and the recipes are grouped on the rings according to subject.

Abstract: A curved wall panel made of fiberglass-polyester resin composite and having a main wall section, in which steel straps (or other high modulars or high stiffner material straps) are circumferentially embedded, and an inwardly recurved section at each side thereof which terminates in a radially disposed and outwardly extending flange. The side-by-side flanges of adjacent panels are conjoined to form a joint which is outwardly spaced from the pair of flanges. The plastic portions of the bolted butt joint formed thereby are in compression only from the bolts and from the hydrostatic pressure while the steel bolts and straps are in tension only. A plurality of conjoined ring panels form a ring module. Outwardly disposed ring panels at the top and bottom of each wall panel enable a ring module to be placed on the rim section of a base formed of pie-shaped elements and to be stacked to form a field-erected tank having horizontally disposed and movement-permitting ring joints above and beneath each ring module.

Abstract: The invention is directed to a waveshape generator capable of producing a desired waveshape by previously storing basic amplitudes obtained by sampling one period of the waveshape at a coarse interval and calculating amplitudes with a fine interval between the basic amplitudes. While basic amplitudes A and B are sequentially produced at a coarse interval in response to an integer portion of the input data, a function X (c) is produced in response to a fraction portion of the input data. Waveshape amplitudes are interpolated between the basic amplitudes by carrying out calculation of A + (B - A) .times. X(c) in response to these values A, B and X(c). A special form of function X(c) is also used for applying interpolation by a partial waveshape of a trigonometric function wave. An example of a musical tone waveshape generator is also described in which different waveshapes are produced depending upon different tone ranges by moving the position of a radix point for each of the different tone ranges.

Abstract: In a preheating apparatus of a diesel engine of the type wherein, at the time of starting the engine, a fuel pump is used to inject fuel through a nozzle into a precombustion chamber provided with a preheating device, and the suction air preheated by the combustion of the fuel injected into the precombustion chamber is supplied into the combustion chamber of the engine, until the speed reaches a certain predetermined value and with a substantially constant, small amount of fuel when the speed of the engine is in excess of the predetermined value, the opening of the nozzle is controlled in accordance with the speed of the engine.

Abstract: The disclosure relates to a ceramic heating device in the form of a cylindrical shape comprising a burnt cylindrical support core of heat-resistant ceramics, a ceramic element disposed around said support core, said element comprising (i) a burnt sheet of heat-resistant ceramics; (ii) a heat-generating resistor pattern, said pattern being hermetically sealed between said sheet; and (iii) a pair of exposed terminals provided onto said sheet and said core, said terminal being connected to said pattern and adapted to be coupled to power leads such that electric power is then applied to said pattern.

Abstract: The ultrasonic wave generator incorporates an ultrasonic-frequency vibratory member of cylindrical shape from which ultrasonic waves are produced, and the vibratory member is securely connected of its outer cylindrical surface to the mechanical vibration output end of a metallic block amplifier member which in turn is connected to an ultrasonic electromechanical transducer of the piezoelectric type, etc. The cylindrically shaped vibratory member effects a motion of flexural vibrations in the radial direction throughout its extensive areas, producing large-amplitude ultrasonic waves.

Abstract: An apparatus for measuring gas leakage including a hollow container having a gas inlet port which is connected to a reference pressure gas supply via a valve and another gas outlet port that is connected to a test container; a liquid container located in the hollow container, a balance mechanism mounted within the hollow container which is maintained in equilibrium by an inverted floating cup that is attached to the underside of the balance beam and which is immersed in a liquid contained in the liquid container, a supply pipe that introduces gas at a reference pressure into the floating cup, a detector which detects the inclination of the balance mechanism and generates a signal corresponding thereto, a measuring device that measures the displacement of the floating cup as a function of the signal from the detector, and a restoring means that will restore the equilibrium of the tilted balance beam.

Abstract: An electronic monitor system for automobiles warns the driver both by a flashing light or buzzer and by lighting an appropriate indicator light which tells the location if there is something wrong with any one of the functions located through the car, and includes circuitry which determines whether the function needs emergency care or not and manually-operated switch which triggers the circuitry to render the indication less bothersome if the defective function is one not requiring emergency care.

Abstract: A timing belt tensioner for an internal combustion engine comprising a base plate pivotally mounted about one end of the base plate to the front of the engine, a first arcuous slot formed in the base plate and extending along an arc having its center of curvature at the pivot axis of the base plate, a cylindrical tensioner bearing holder disposed on the base plate, a tensioner bearing rotatably coupled to the bearing holder, a second arcuous slot in the bearing holder corresponding to the first arcuous slot in the base plate, and a bolt extending through the first and second arcuous slot for fixing the position of the timing belt tensioner on the engine.

Abstract: Abnormal conditions of the engine and auxiliary machines mounted on a construction equipment are detected by sensors and individually displayed by a plurality of abnormal condition display circuits connected to respective sensors, for the purpose of alarming and displaying any one of the abnormal conditions there are provided a logical sum circuit connected to receive abnormal signals from all abnormal condition display circuits and an alarming circuit energized by the output from the logical sum circuit for giving audible and visible alarms. Further, there are provided a delay circuit connected to receive the output of a sensor provided for the engine system and a deceleration mechanism operated by the output from the delay circuit for decreasing the speed of the engine or stopping it when an abnormal condition occurs in the engine system.

Abstract: A magnetic memory structure which may be used as a disc memory, a drum memory or a similar component including a ceramic substrate having a thin film of magnetic ferrite material thereon, said film being of a cobalt-based spinel type ferrite and a method for manufacturing the same.

Abstract: An apparatus for testing the accuracy of a timepiece comprising a television camera for converting the time displayed into an electrical signal, a means for converting the electrical signal into a digital signal, and a processing means for storing the digital signal and comparing the digital signal to a signal corresponding to a time standard. In operation, the time displayed on the timepiece is compared to the time standard at two different times and the difference between the time standard and the time displayed of the two measurements is compared.

Abstract: In an automobile which uses a pneumatic tire, a puncture alarm device for one or more tires wherein a switching unit comprising conductive films formed on both the surfaces of an insulating material is disposed at the outer periphery of an air receiving portion of the tire, and when a metal piece or metal pile, such as a nail, sticks into the tire it penetrates through the switching unit and short-circuits the conductive films on both the surfaces thereof so that an alarm is issued.

Abstract: In a molding machine of the type wherein a movable die plate carrying a movable mold is moved toward a stationary mold, the movable die plate is locked by a locking member to the tie bars, and then the mold tightening cylinder is operated to strongly urge the movable mold against the stationary mold, the locking member is operated by an electric actuator before the movable mold engages the stationary mold, or while the movable die plate is still being moved toward the stationary mold.

Abstract: A device for detecting the breakage of, and excessive tension in, the thread operating in knitting machinery, the device comprising a case, a first detection lever for detecting breakage of the thread, and a second detection lever for detecting excessive thread tension, both detection levers being pivotally mounted to the case. The second detection lever cooperates with a return spring attached at one end thereof to the lever and at the other end thereof to the case. The location of the points at which the spring is attached to the second detection lever and case respectively are such that the spring provides a force which resists the pivoted movement of the detection lever, such force varying by a small but uniform amount with the angle defined by the lever. The thread is applied to and supported by the second detection means. When the thread is subjected to excessive tension, the second detection lever pivots against the resisting force of the spring until it reaches an angle at which the thread escapes.