Abstract: The present invention relates to means for reducing the gun firing dispersion in a weapon system. The gun (4) comprises a gun servo for aiming the gun at a target. A programmable signal generator (5) is arranged to produce a damping signal (z) which is supplied to the gun servo system at the firing of the gun and which signal has such a character that the oscillating movements which are generated at the firing of the gun are counteracted. A recoil sensor (6) is provided for sensing the start of the recoil movements of the gun and emitting a trigging pulse to the signal generator (5) which in turn is producing said damping signal (z) preferably in the form of a pulse train in which the number of pulses, the pulse widths, polarities and amplitudes of individual pulses can be varied and which has a certain time relationship with the gun firing moment.

Abstract: An improved keyboard for a musical instrument includes a plurality of keys arranged in a side-by-side order, all lying in a common plane. Different embodiments of the invention have a varying number of keys per octave, from as small as 12 keys per octave to as high as 90-120 keys per octave. In those embodiments of the invention in which the number of keys per octave results in a key whose width is too narrow to be uniquely depressed by an operator's finger, associated apparatus determines from a plurality of keys which have been depressed, a particular tone to be produced. The keyboard may be associated with apparatus to distinguish one set of keys from other sets of keys, which apparatus can include a selectively energizable light source associated with each different key or other equivalent apparatus.

Abstract: An elongate opening is formed in the substrate of the printed circuit, from which project lugs formed in the copper layer on the substrate. The lugs are shaped to form a supporting cradle for the resonator which is soldered or stuck to the lugs with its base in contact with the end of the opening. Two conductive tracks extend across the opening to two resonator terminals, in the form of pins, to which they are soldered.

Abstract: Suspension arrangement for actuation and abrasion dependent movable parts, especially brake pad holders (1) and non-rigid brake saddles, particularly of rail vehicle disk brakes having an abrasion compensation device, comprises a suspension bracket (7) which, on the one hand, is rigidly connected to the movable part (brake pad holder 1) or a fixed holding part, and which, on the other hand, is held at the respective other part by means of a sliding guide mechanism (8) extending parallel to the direction of motion and being self-locking under stress by a tilting moment of the suspension bracket (7) which is resiliently deformable in the direction of motion. The sliding guide mechanism (8) may be a bushing (9) displaceably held on a bolt (10), the length of the bushing (9) approximately corresponding to the diameter of the bolt (10). The suspension bracket (7) may be a leaf spring.

Abstract: An electroosmotic ink printer head comprising a dielectric support having a surface defined by longitudinal front and rear edges and a pair of transverse edges. A plurality of first electrodes is successively arranged on said surface extending rearward from the front side of the support. A porous member is provided to overlie the first electrodes in contact with said surface. On the porous member is a second, liquid-permeable electrode on which is provided a means for supplying ink thereto to allow it to permeate therethrough to the porous member. A third electrode is located adjacent to each outermost one of the first electrodes and to the longitudinal front edge. A potential is applied to the third electrode with respect to the second electrode to cause the ink in the porous member to electroosmotically move in a direction from the third electrode to the second electrode. The ink which might wet the front edge of the support is pulled rearward by the electroosmotic movement.

Abstract: A magnetoresistive element comprises first to fourth magnetoresistive parts formed on a substrate. The first and second magnetoresistive parts are connected in series, and the third and fourth magnetoresistive parts are also connected in series. These series connected parts are connected in parallel to one another, first and second terminals are provided at from both ends of the parallel connection and, third and fourth terminals are provided at the junction of the first and second magnetoresistive parts and at the junction of the third and fourth magnetoresistive parts, respectively. The resistive values of the first and second magnetoresistive parts in the absence of a magnetic field are substantially equal, and the resistance values of the third and fourth magnetoresistive parts in the absence of a magnetic field are also substantially equal.

Abstract: The concentration of an organic additive in a plating bath is determined by providing a polished and constant current density preplated rotating disc cathode, a reference electrode and anode in an electrolytic copper plating bath, passing an electric current from the anode to the cathode and reference electrode; measuring the voltage difference between the cathode and reference electrode; and comparing the difference to values for known concentrations of the organic additive.

Abstract: A plating rate monitor includes a Wheatstone bridge, one branch of which is a monitoring resistor formed on a printed circuit board located in the same environment as an object being plated. The resistor undergoes plating at the same rate as the object. Each time the bridge becomes balanced, another resistor branch of the bridge, which is variable, is incremented by a preselected value to upset the balance. As the monitoring resistor in the plating environment undergoes plating, a change in its resistance causes the bridge to become balanced once again and the time interval for achieving this balance, for a calculated plating thickness change of the monitoring resistor, determines the plating rate.

Abstract: A connector body has a plurality of contacts and a plug hole made in a front face of the connector for receiving a plug. Terminals connected to the contacts are led out to extend perpendicularly to the lengthwise direction of the plug hole along a side surface of the connector body adjacent the front face in which the plug hole is made. The outer peripheral surface of the connector body is shaped to permit control of the depth of insertion of the connector body into a connector insertion hole in a printed-circuit board. The actual insertion depth is determined by selection of the shape of the connector insertion hole in the printed-circuit board, by which the connector terminals can be connected to laminar conductors deposited on either one or both of the surfaces of the printed-circuit board.

Abstract: A projecting structure (1) with at least two articulated stretching arms (17, 18) which can be adjustably tilted, for wind up tents, particularly sunshade tents, comprising an attachment or supporting bar (2) secured to the wall through adjustable brackets (3), a roller (13) for winding up the tent sheet (T), with a respective control winch (14), said roller being supported on the bar (2) parallel thereto between end supports (15) keyed and secured to the ends of said bar, said bar having slidably mounted thereon square-shaped support and articulation hubs (16), one for each of said articulated arms which stretch the tent sheet (T). The structure is characterized in that each of said square-shaped hubs (16) comprises an attachment hinge body (22) which is hinged, on one hand, to said hub co-axially with the square-shaped bar mounted therein and, on the other hand, to the carrier arm (17) of the respective pivoted stretching arm (17, 18) around an associated pivot (25).

Abstract: A gyroscope motor control system has a phase-locked loop circuit and an antihunting circuit. The phase-locked loop circuit has a voltage-controlled oscillator which produces the drive signal for the motor. The frequency of the oscillator is controlled by the output of a phase discriminator which is in turn dependent on the difference in phase between a reference frequency and a feedback signal from the motor drive signal. A capacitive pick-off senses the speed of rotation of the gyroscope inertia wheel and a signal in response to this speed is supplied to a directional phase discriminator together with the feedback signal. The output of the discriminator varies with change in phase difference between its two inputs, and is supplied via a switching transistor to the input of the oscillator to effect minor variations in its frequency such as to reduce fluctuations in motor speed. The transistor is held off until there is substantial synchronism with the motor drive signal and the inertia wheel speed.

Abstract: A chamber intended for containing the effects arising from explosions, deflagrations, or detonations initiated intentionally or unintentionally inside the chamber. The chamber comprises an essentially cylindrical mantle (1) with associated sealing end pieces. Each end piece comprises an essentially flat part (2, 3) which preferably on its outside is reinforced with reinforcement members (13, 14) placed at right angles to each other. The reinforcement members are welded to each end piece and to the inner surface of the mantle, and they extend from the relevant side of each end piece in the longitudinal direction of the cylinder.

Abstract: Digitally encoded (DPCM) NTSC video is transmitted in a standard T3 data format and rate via a transmit interface module. The module is subjected to inputs comprising DPCM encoded NTSC video, horizontal sync and a video sampling clock at 3f.sub.sc, where f.sub.sc is the color subcarrier frequency. The sampling clock is used to write the DPCM encoded video and horizontal sync into a buffer. The buffer is read out via a read clock which is a submultiple of the 44736 MHz T3 rate. To assist in receiver decoding, the video data is supplemented with horizontal sync indicating code words, which designate the start of each horizontal scan line. On detection of a horizontal sync word read out of the buffer memory, the read clock is inhibited for the insertion of the horizontal sync indicating code words. The T3 frame is also supplemented with two digitized audio channels, stuff indicators and a stuff opportunity slot as well as parity, frame and multiframe indicators and an alarm channel.

Abstract: The invention deals with a spherical or almost spherical chamber or container 1 which can seal in pressure and splinters produced by explosion, deflagration or detonation of explosive substances. The chamber is constructed with an outer structural shell 2, an inner splinter protection layer 3 and an intermediate shock absorbant layer 4. Openings cut in the chamber wall are provided with equally strong outlets or are sealed with equally strong doors constructed after the same principles as the chamber.

Abstract: A dielectric surface is conditioned for electroless plating of a conductive metal thereon by contacting the surface with a multifunctional ionic copolymer. The conditioning can be in the holes and/or on the surfaces of the substrate.

Abstract: Process and device for hydrolyzing cellulose material in an extruder with two parallel screws in which the material introduced in the moist condition and, transported by the screws is malaxated, heated to a temperature of above 200.degree. C. in the downstream part of the extruder where it is contacted with an acid solution and progressively compressed, to a pressure higher than the saturated vapor pressure of the liquid phase of the hydrolyzed material at the temperature reached in the downstream part and maintained by a control device for the evacuation of the material.

Abstract: A boiling water reactor fuel assembly is provided with an elongated, vertical stiffening device having four stiffening wings which are each attached to a wall of the fuel box. Each stiffening wing has at least one vertically directed passageway for water.

Abstract: An apparatus for acquiring and collecting messages aboard a satellite which are transmitted via respective radio-signals over different frequencies from a plurality of beacons comprises a receiver having an adjustable gain control input. An automatic gain control loop is provided for maintaining the gain of the receiver at a constant value. While the input frequencies of each input signals and time of arrival thereof are not exactly known, it is known that all these input frequencies are contained within a predetermined input frequency band which is periodically scanned by a frequency analyzer. This analyzer operates by scanning the center frequency of a band pass filter over the input frequency band and detecting the level of signals at the output of this filter for a plurality of successive frequencies within this input frequency band. The detected levels are digitized.

Abstract: An apparatus for receiving messages transmitted from a plurality of radio signal sources operating at different frequencies within a predetermined frequency band. Means are provided to frequency scan the receive signals, deriving information for determining the frequency range in which said signals lie. A demodulating phase locked loop is connected to receive the radio frequency signals, and an initial operating frequency for the phase locked loop is provided by the frequency range information determined from the means for frequency scanning. A resetting circuit is included to maintain the phase locked loop oscillator frequency at a value independent of the frequency of the radio signals.

Abstract: Apparatus for reproducing photographic images by diffusion transfer. A first path is provided for receiving an image-carrying photographic sheet of the diffusion transfer type, for developing. A lower guide in the first path includes a plurality of irregularly spaced protrusions which cooperate with vertically extending flexible blades. The material to be developed passes between the flexible blades and the lower arcuate guide member during processing. While the first path is processing the image-carrying sheet, a sheet of print material is being advanced simultaneously through a second path, the first and second paths having a common exit aperture. Disposed at the common exit aperture is a means for laminating the print medium and developed image-carrying sheet. The laminated structure exits onto a receiving tray for temporary storage during the diffusion phase, prior to delamination of the sheets to reveal the transferred positive image.