Abstract: A wire printing head is disclosed in which solenoids are arranged in arcuate configuration, the printing wires being connected in line with their respective solenoids. A wire guide is positioned adjacent the printing line and preformed tubes are used to guide the wires from the solenoids to the wire guide. The tubes are located at the end nearest the guide in a tube support member. An intermediate support member is provided to support the tubes, grooves being cut in the intermediate support member for this purpose. The grooves are sufficiently large to enable the tubes to take up their natural positions within their respective grooves, being secured within the grooves by an adhesive material such as synthetic resin. The solenoids are held by clamps in recesses in the head and the recesses radiate from a common point which also serves as the point from which the arc is struck.

Abstract: Method and apparatus for the charging a battery which as a stand-by supply is connected to the output of a controllable rectifier supplying a load measures the charging current from the rectifier to the battery at certain instants in order to obtain the change of the charging current, the current value at each measuring instant being stored and, after that, the value being compared with the value of any of the previous measuring instants. The result of this comparison is used as a control condition for a controllable rectifier in order to determine the output voltage from the rectifier.

Abstract: A magnetic transducing assembly including an elongate magnetic flux carrying core member, a substrate with a flat multi-turn spiral on a surface thereof and slit opening at the center of the spiral. The core is so engaged in the slit that the plane of the spiral is aligned with the elongate direction of the core and so that the spiral forms a coil about the core member.

Abstract: Digital words of a pipelined incoming information flow are branched into a number of outgoing information flow branches. The term "pipelined" means that the flow is transferred through memory means whose activation inputs are controlled by clock pulses, the memory means arranged successively with reference to the flow direction being coincidently activated to receive successive words of the flow. A digital branching information flow for ordering into which of the outgoing branches the incoming words have to be branched is generated in step with the incoming flow. The basis for each outgoing branch is obtained from the output of a branching register to which the incoming flow is supplied. The branching registers are activated by the clock pulses, but if an outgoing branch contains only a part of the incoming flow, an activation locking device is used in order to block the clock pulses in dependence on the respective branching information.

Abstract: A manually operable device for pressing fabric comprising two triangular-shaped jaws, each of which has a flat surface portion. These surface portions face each other and constitute the working surfaces of the device. The two jaws are each secured to a handle. These handles are pivotally joined by a hinge so disposed that the two flat surface portions are separated from each other or are in parallel pressure engagement. The separated position of the surface portions constitutes the loading position of the device for inserting fabric between the two jaws and the other position constitutes the pressing position for pressing fabric inserted between the two jaws. Springs coacting with the handles bias the same into one or the other of the two positions.

Abstract: A tire protector for reducing wear on the tires of heavy vehicles consisting of two or more parallel rows of spaced apart chain links. These links are joined by couplings members and consist of metal bars or wires which are bent so that they encircle each two chain links and that the ends of the bars or wires overlap side by side. These overlapping ends are positioned to face upwardly and flat when the protector is mounted to a tire. As a result only a relatively small area comes continually with contact with the ground and is thus exposed to wear and tear. This contacting area is strongly enforced due to the thickness of the sidewise overlapping ends, as a result, parts of the protector, such as the chain links and the bars or wires which form the coupling member, can be made fairly thin as they are not exposed to considerable wear thereby reducing the overall cost of producing the protector and also extending its lifetime.

Abstract: A data processing unit in which the clock speed is selected to match the access times of the store units connected to it. This is achieved by means of a special terminal on each store unit, this terminal being internally grounded if the unit is of a slow access type, and open-circuited if the unit is of a fast access type.

Abstract: A method of bonding laminations of a magnetic core is disclosed in which photo-resist material consisting of a co-polymer is applied as a film to a sheet of magnetic material to define lamination shapes to enable the laminations to be formed by etching. The film of photo-resist material on the laminations is then utilized to bond the laminations together in a stack. In order to permit the core to operate at temperatures higher than the softening temperature of the photo-resist material, the bonded stack is irradiated to cause changes to the bonding material such that the material does not soften at the operating temperature of the core.

Abstract: A printer has a horizontally movable carrier which supports a print head including a print element on which are disposed type characters in a two dimensional array with the element controllably movable by motors in two degrees of freedom to selectively position each type character opposite a record-medium-carrying platen for printing. The print head is on a rocker having a cam follower which cooperates with a cam on a shaft driven by a variable speed motor which is also on the carrier. During printing the motor speed is controlled so that the print element is driven against the platen with a force related to the particular character being printed. The motor speed is further controlled so that there is not only a minimum wait between the printing of successive characters but there are also minimum accelerations and decelerations of the motor.

Abstract: For the batch filtration of suspensions by application of external pressure, after the pressing of the suspension in the press-chamber space and before entrance of the resultant press cake into at least one subsequent press-chamber space the structure of the press cake is changed by shearing forces and the press cake is curved and at least partially torn apart. In the case of municipal sludge the flaked sludge is subjected in a first pressing zone to slow increase of pressure and a pressure of up to about 1 bar and then is subjected in at least one following press zone to a pressure increase which is more rapid than in the first press zone, up to a pressure of about 3 bars.

Abstract: Antenna apparatus for representing a bearing angle includes an antenna array of N antenna elements equispaced around the arc of a circle of at least 90.degree., and preferably greater than 180.degree. in a plane for receiving microwave energy, microwave power dividing and phase transforming matrix having N input ports respectively connected to the antenna elements and a set of output ports connected to a utilization device for indicating the bearing angle of the incoming microwave energy, and a utilization device including means for measuring the phase difference between signals at pairs of the output ports for representing the bearing angle.

Abstract: A container and lid combination in which the lid is removable from the container to open the container and it is replaceable to close the container. The container has a body with a mouth including a strip of annular extent secured to the lid. The body has an annular weakening notch in the vicinity of the strip and the container is separable at the notch to separate a part of the container mouth and the lid together with the strip from the body of the container. The notch is positioned radially inwards of the strip and upon rupture of the notch separate parts are formed which can be reengaged upon replacement of the lid on the container. Locating surfaces are provided on the lid and container for establishing a determined oriented position of replacement of the lid on the body of the container.

Abstract: A heater plate for plunger-type molding presses comprises a plurality of electrically heated heating elements which are inserted into holes through the plate. These holes are disposed in rows parallel to the peripheral outline of the plate so that the density of the heating elements decreases toward the center of the plate. The heating elements are interconnected and also connected to a temperature control device so that the heating elements can be selectively heated whereby the plate can be uniformly heated in spite of higher heat loss at marginal portions of the plate.

Abstract: The invention relates to an apparatus in a computer system for transmitting signals from one processor to one or several other processors connected to the same bus system so that the signals having priority are transmitted without time delay and that the sequence of signals without priority is not changed. Each processor contains a sender buffer for sending all the signals and a queue buffer for storing signals without priority. If signals having no priority prevent signals having priority from being transmitted through the bus system because of congestion in the receiving equipment, the apparatus allows such signal having no priority to move from the sender buffer to the first place in said queue buffer.

Abstract: In a printer having a print head assemblage longitudinally moving along a path parallel to a record medium, a portion of the print head assemblage is controlled to strike the record medium at a desired point by measuring the time required for sonic pulses generated in a rod at the position of the print head assemblage to arrive at a sensor, such time being a function of the distance from the print head assemblage to the sensor. A representation of this time is compared against a similar representation of a time associated with the position of the desired point and upon equality the portion of the print head assemblage is driven toward the record medium.

Abstract: Two asynchronously operating computers which are each controlled by timing periods produced by its own clock are each provided with a pulse treatment circuit which in response to a break signal, interrupts the computer operation during the following timing period. A buffer memory is used in order to transfer information from the first to the second of the computers. Because of the asynchronism there is a risk that the buffer memory becomes either totally occupied or unoccupied. The risk is eliminated by means of an address and break signal generator which generates addresses to control writing and reading of the buffer memory and generates break signals which are sent to the pulse treatment circuit of the first and second computer in order to inhibit information from being sent to the buffer memory when it is full or drawn from the buffer memory when it is empty.

Abstract: A process for the manufacture of water gel explosives comprising mixing microspheres to be expanded in a concentrated solution or eutectic melt containing part of the ingredients of the finished explosive such that the microspheres can be expanded at a temperature at which there is no danger of explosion of the mixture. In particular, the solution or ment has an oxygen balance in which it poses no safety risk at the temperature required for the expansion of the microspheres. Thereafter, at a lower temperature the remaining components of the explosive including the sensitizer are mixed with this premix containing the expanded microspheres.

Abstract: Affixed to or positioned opposite the glass housing of a watt-hour meter which has a rotating disc with an indicator mark on its periphery is a device for indicating the rate of rotation of the disc. The device has two spherical lenses disposed generally in the plane of the disc along a line which is generally perpendicular to a radius of the disc and preferably symmetrically positioned on opposite sides of the radius. A first fibre optical cable couples visible light from an incandescent source to the first spherical lens to focus light on the periphery of the disc and a second fibre optical cable couples visible light collected by the second spherical lens focused on the periphery of the disc to a photoresistor.

Abstract: An electrical pendulum clock comprising a clock movement having a driven shaft and a dummy pendulum driven from the shaft independently of the timekeeping function of the clock. The pendulum comprises a torsion spring with a vertical axis of twist and a pendulum body suspended at the lower end of the torsion spring. The torsion spring has a radial projection which undergoes pendulous travel with the pendulum under the drive from the shaft of the clock movement. For this purpose a first toothed element is driven in rotation by the shaft of the clock movement and a turnable element is loosely suspended for pendulum movement on the shaft. The turnable element loosely carries a second toothed element on a shaft extending parallel to the shaft of the clock movement, the second toothed element being in mesh with the first toothed element.