Abstract: The cross-linking of a moulded object based on polymeric materials is effected by heating the object in the presence of a liquid medium containing one or more peroxides under conditions that cause penetration, and the heating is continued at increasing temperatures to cause a homogeneous cross-linking.Employable peroxides are substantially stable under the first heating step but are cleaved into free radicals during the second heating step, at least the cross-linking step being carried out with the object enclosed in a liquid of approximately the same density as the polymeric material.

Abstract: A teaching aid providing text for a spoken commentary by a teacher and transparencies for simultaneous illustrative visual display, said aid comprising a loose-leaf binder of folded sheet material to form an enclosing case, means on adjacent folded flaps thereof to secure the case, loose-leaf binding means in the case, a stack of envelopes and an adjacent stack of text volumes mounted to said binding means, said volumes of text being arranged in a predetermined sequence, and a plurality of transparencies each removably accommodated within a respective one of said stack of envelopes and being arranged in said stack in the same sequence as said volumes of text.

Abstract: Apparatus for dosing a flowing fluid, particularly for dosing an airstream with lubricant. The apparatus includes a casing for connection into the fluid flow line and, within the casing, a cartridge with the additive therein. The cartridge comprises a bag and a nozzle, the nozzle including a metering bore and a spigot which closes the metering bore. Before the cartridge is placed in the casing for use, the spigot is removed so as to open the outlet end of the metering bore. The casing includes a cartridge plate having a stepped aperture therein, the step providing an axially facing shoulder, and the nozzle including a rib which inter-engages with said shoulder to locate the cartridge in the casing. There is a stop element in the bore which is positioned so that it is engaged by said spigot before the rib interengages with the shoulder if an operator attempts to push a nozzle into said bore without having removed the spigot.

Abstract: A diaphragm pump for feeding fuel to internal combustion engines is described. The pump comprises one inlet duct for fuel from a tank provided with an outlet duct, and an outlet duct for the fuel from the pump, and comprises a suction valve and a discharge valve operated by the diaphragm to transfer the fuel from the inlet duct to the outlet duct. The main feature of the pump is to comprise a shut-off valve completely separate from the suction and discharge valves and disposed in the path of the fuel between the inlet duct and outlet duct, said shut-off valve being open during normal operation of the pump, and closing to block the passage of the fuel when the motor vehicle on which the pump is mounted overturn.

Abstract: A load-carrying railway truck having a longitudinal axis in its direction of travel and including at least one load-bearing member for supporting a load; a pair of live wheelsets supporting the load-bearing member, each wheelset being so mounted in the truck and having such a profile that it is substantially self-steering; means interconnecting the wheelsets to transmit yawing and lateral movements of either wheelset in the opposite sense to the other wheelset; and elastic elements suspending the load to the wheelsets, at least some of the elastic elements having a lateral stiffness in a direction transverse to the longitudinal axis of the truck which is lower than the stiffness provided by them in a direction parallel to the longitudinal axis.

Abstract: A method for the recovery of sulphur compounds, volatile alcohols such as methanol, as well as by-products such as turpentine and the like, which are formed in connection with pulping, from the blow-expansion condensates from the evaporating series of a digestery, from turpentine mother liquors, or from other liquids in a separate treatment unit. The liquids are treated in a vacuum stripping unit by means of a proportion of secondary steam which is obtained from the last step of a multi-stage evaporating plant. The excess of secondary steam is condensed by means of indirect condensation in a first surface condenser, whose exhaust vapors, together with the vapors leaving the stripping unit and with gases that are to be removed from the evaporating steps, are condensed by means of indirect condensation in a second surface condenser.

Abstract: Nitrogenous condensation products and hydrolysis products thereof are provided wherein the condensate of a fatty acid and diamine is reacted with an unsaturated dicarboxylic acid or a partial ester thereof; optionally the product of such a reaction or a similar product obtained from an unsaturated monocarboxylic acid is further reacted with a halocarboxylic acid. The unhydrolyzed products can be formulated as imidazolines.

Abstract: In a method of joining a pair of parts, wherein one of the parts is formed of a carbon-containing material and the other formed of a metal at least at its surface to be joined to said one part, the parts are first assembled with the surfaces to be joined in the required joining position, with a brazing material and a flux being provided at or adjacent the surfaces to be joined. The flux is chosen so that when raised to an elevated temperature above the melting point of the brazing material, it is capable of reacting with oxides and carbon at the surface of said one part, while the brazing material is chosen so as to be capable of being heated to said elevated temperature without decomposition. The assembly is then heated at least to said elevated temperature in a non-oxidizing atmosphere so as to melt the brazing material and cause the flux to react with surface oxides and carbon on said one part whereby, on cooling, a brazed joint is produced between the parts.

Abstract: A catheter type electrode member for an implantable pacemaker, insertable from without from the epicardium into the heart muscle for cardiac stimulation, of the type comprising a holder of dielectric elastic material including a stem terminating in an enlarged resilient pad having the shape of a platform. One major surface of the platform pivotally supporting an arcuately curved electricity conducting hook, which projects out of said pad and has its tip portion pointing back towards said major surface and preferably two spaced apart anchoring needles likewise projecting out from said major surface, conveniently in a diverging manner. Upon insertion from the outside through the epicardium of the hook into the heart muscle by a tool gripping the hook, release of the hook allows the elastic pad to expand against the outer heart surface at the same time as the anchoring needles are made to penetrate also into the epicardium, thereby positively anchoring the electrode member in position.

Abstract: A pivotable and removably securable joining structure particularly suited for joining wooden structures including a first wooden member having a substantially cylindrical hole therein, and a second wooden member having disposed therein a substantially cylindrical dowel extending outwardly thereof and a pin located within the second member disposed substantially perpendicularly to the longitudinal axis of the dowel and extending through the dowel. The dowel is made of a plastic material and has a diametrical size substantially equal to the diametrical size of the cylindrical hole in the first member.

Abstract: Ski with a core of light-weight material, preferably of specific gravity from 0.1 to 0.25, and an outer sheathing composed of a reinforced synthetic plastics material. The core has an internal reinforcement of relatively narrow ribs of unreinforced plastics material with a wall thickness less than 1.5 mm and preferably about 0.5 mm extending substantially at right angles to its upper side and/or its under side directly unified with the plastics material of the sheathing.

Abstract: An electrically driven vehicle has a battery pack containing batteries in a support structure, there being defined a compartment in which the battery tops are located and a further compartment in which are the battery lower casings, said structure having inlet and outlet openings for the respective compartments, for through flow of cooling air lengthwise of the vehicle.

Abstract: This invention provides guaiacol p-isobutyl hydratropate as a new compound for use in human therapy as an analgesic, anti-inflammatory, antipyretic, antiseptic and expectorating agent.

Abstract: A Ticketing arrangement particularly for food products is designed to avoid penetration of such products.The arrangement includes a ticket bearing member rotatably movable within a socket which is connectable to a support which in turn can be affixed to the food products without sticking into such products.

Abstract: Light metal composite materials reinforced with novel continuous silicon carbide fibers composed of aluminum, aluminum alloy or magnesium alloy matrix and the continuous silicon carbide fibers containing 0.01-40% by weight of free carbon, in which the free carbon is reacted with aluminum or added metal elements in the aluminum alloy or magnesium alloy to form carbides. When the silicon carbide fibers are coated with a metal or ceramics, the wettability of the silicon carbide fibers to said matrix is more improved.

Abstract: In an electronic musical instrument, key switches are scanned sequentially and repetitively in a high scanning rate to deliver key data consisting of a pulse existence at an assigned time slot and representing ON-OFF states of the key switches. The key data is converted into key codes of digital notation. The key codes are assigned to and memorized in time-shared channels of a high time-sharing rate. A time-sharing rate converter reads out the key codes of digital notation and produces key gate control signals at corresponding ones of individual output terminal in a low time-sharing rate.

Abstract: Adhesion between extruded polyethylene film and a substrate consisting of paper or paper lined metal foil is improved when the substrate and film are pressed together by passing through rollers which also cool the film to below its softening temperature, wherein at least one of said rolls which is brought into contact with the polyethylene coating is moistened on its rolling surface with a liquid having a critical surface tension below 73 dyne/cm, a boiling point below 100.degree. C and consisting of a mixture of water and between 10% and 50% ethyl alcohol.

Abstract: This disclosure is directed to a protective device for the end of a narrow flat wire and particularly to such device for the end of an arcuate wire in the pocket of a brassiere for framing the lower circumferential portion of a brassiere cup. The ends of the wire are provided with a plastic cap which is secured on the wire by a projection on an edge of the flat wire received in a hole in the cap when the cap is mounted over the end of the wire.

Abstract: An apparatus for picking-up and removing objects or the like, especially animal excrements, comprising a receiver portion formed of relatively rigid material and intended to be engaged by an operator, for the reception of the object to be picked-up. A substantially sack- or bag-like sleeve is provided for such receiver portion. This bag-like sleeve, after having picked-up the object, can be forwardly turned over the receiver portion and, if desired, closed.

Abstract: This invention is related to a sludge and slime separating and settling device which typically comprises a container with a bottom and a lower, truncated conical part, an upper, truncated conical part with a spillover overflow extending around the upper edge, and an intermediate cylindrical part. The inlet is in the vertical direction in the middle of the container. The container is closed with a cover provided with an annular flow barrier wall extending from above the overflow level and dipping into the container.