Abstract: An anti-crossing device to improve efficiency in parallel skiing techniques includes an upright member which is attached to the upper surface of a ski adjacent to the inner longitudinal edge of same. The upright member is molded from a flexible plastic material and comprises an attaching base and a trough-shaped upper portion and is arranged so that the hollow side of the trough is turned towards the other ski. The upright member shows itself to be quite rigid when the skis begin to cross so that it urges the crossing ski back to a more parallel position. When, however, the skis crossed over one another in spite of the provision of the upright member this yields in the other direction, so that the skis may easily be separated from one another.

Abstract: Apparatus of a dual wheel, engine driven garden plow for breaking up soil, then distributing the soil in rows and plowing out between the rows during the growth of a crop. Such apparatus includes an engine powered tractor, dual wheel front frame construction and a counter weight stabilizer bar in the rear for permitting riding of the apparatus. A lever system provides the adjustment structure for the plow itself.

Abstract: A method of forming very small diameter holes in a flexible substrate by coating both sides of substrate with metal layers; etching layers and substrate at places where holes required, removing small ring of the metal layers surrounding holes to remove any overhang of metal; and plating walls of holes and providing electrical conduction with said layers.

Abstract: Concrete is manufactured by mixing cement with substantially the exact precise quantities of water needed to produce a setting of the cement, agitating the mixture until its viscosity is substantially reduced, adding dry sand or other agrigate, mixing with a slurry, patting the mixture through a nozzle where air is introduced under a pressure and air is emitted in the form of jets into the tapering part of the nozzle, and the mixture is vibrated to achieve maximized distribution of its components while being blended and recombined during the process of gunning and feeding to the location of distribution. The concrete mix may be applied appropriately to a gun assembly or a gun type device designed dispense entrained granular materials in a compressed stream onto a work area.

Abstract: A method of forming buried regions in a printed circuit substrate in which; a first layer of doped silicon oxide is deposited on the substrate, a pattern of apertures is produced in this layer and a second layer of differently doped silicon oxide is deposited to fill in apertures. The first layer silicon dioxide acts as a mask to the doping material so that when the two layers are subjected to a common diffusion step both doping materials are driven into the substrate, with the second layer doping material restricted to the regions of the apertures.

Abstract: A telescopic pole having a clamp at its base end so that it may be attached to any supporting object and including a universal adjustable joint at the junction of the pole base and the clamp so that the pole may be inclined at any desired angle, and the upper end of the pole being fitted with a hollow plastic sphere perforated with a series of small diametrically arranged openings for various objects that may be inserted therethrough in order to be supported from the pole combination structure.

Abstract: A data processing system in which a sequence of records, each record containing data items of various types, is processed. The system is operable in a "remember" mode in which, if a data item of a particular type is not present in a particular record, the result of the last time that type of data item was processed is used as the result for the current record. This permits data files to be stored in a compressed form in which repeated data items are omitted.

Abstract: A closed-loop servo system in which the parameter to be controlled is caused to follow a predetermined profile by approaching the profile, if there is an error, at a rate independent of the magnitude of the error. The system repeatedly tests for an error and adjusts a control input by a predetermined step each time one is found. In a preferred implementation the velocity of a d.c. motor is controlled by means of an up/down counter the value of which controls the motor current.

Abstract: A portable apparatus having a tank having an internally treated surface for containing at least 500 liters, a pump connected to the exit of the tank for pumping solution to a nozzle through a reducing coupling, a water meter means for controlling the quantity of solution entering the steer, a cut-off valve at the water meter, and a cut-off valve at the nozzle, a manometer means for reading pressure passing through the system which is substantially equal to or greater than the pressure developed in the animal's arterial system, and a return pipe from the pump to the tank. By means of the present invention there is provided means for injecting solution into a slaughtered animal when a veterinarian, who controls the quantity of the solution administered according to the weight of the animal such as a steer, and, when the appropriate amount of solution has entered and passed through the steer, the veterinarian closes his valve and the nozzle is shut and removed from the slaughtered animal.

Abstract: An array processor, operative as the peripheral of a sequential machine. Each processing element is organized on a bit-serial basis, with single-bit registers and a bit-addressable store, and the array is controlled by a microprogrammed main control unit. These features result in an extremely flexible arrangement.

Abstract: A Colour Display Apparatus comprises a three-gun cathode ray tube modulated by an input video signal from a digital computer. The video signal contains digital colour codes in the portions of the signal which correspond to blank spaces in the display (e.g. spaces between rows of characters). These codes are stored in a circulating shift and are used to gate the video input to the appropriate combination of guns to produce the required colour for each symbol.