Abstract: A process for the production of an injection nozzle comprising an essentially tubular inner part (16) and at least one essentially wire-type heating element (14, 15) which is embedded entirely inside a solid metal body (12, 13) lying in a close-fitting manner around the inner part in which one or more separate, essentially tubular metal bodies (12, 13) with a heating element (14, 15) embedded therein are formed by placing the heating element and the metal in a molten state in a mold, so that the heating element is completely enclosed by the molten metal, and subsequently allowing the metal to set, following which the body thus formed is removed from the mold and this tubular body or these tubular bodies thus obtained is or are then slid over the tubular inner part up to a certain point.

Abstract: Injection nozzle for use in a device for moulding an object of a thermoplastic material in an injection mould, comprising a nozzle with a feed channel (4) running through it which connects at the bottom end to a jet passage (7) and at this end has a ball-shaped closing element (9) which can be turned by means of control means (11, 12, 13) from a position in which the inlet aperture of the jet passage extending through the member (9) coincides with the end aperture at the bottom end of the feed channel to a position in which said inlet aperture lies entirely outside the above-mentioned end aperture, so that the end aperture of the feed channel is blocked by the member.

Abstract: Injection nozzle for use in a device for moulding an article made of a thermoplastic material in an injection mould, has a nozzle with at least one feed channel which runs through it, and which at one end is connected to a feed of the thermoplastic material and at the other end connects to an outflow aperture, and at this end has a seat which can mate with the shut-off end of a to and fro moveable shut-off pin running through the channel. A mechanism for moving the pin is in the form of a ring provided with internal screw thread which engages at least one element which projects essentially radially relative to the pin, and which is situated in the feed channel and permits the passage of the material through the channel, and the end of which engages with the internal screw thread of the ring, the element being located between the connection of the channel to the material feed and the outflow aperture, and the end faces of the ring being in sealing contact with sealing faces provided in the nozzle.

Abstract: Container (1) having a lid (3) detachably fastened on its open top and having around the outer periphery of its open top an outwardly projecting thickening (2) or rim, the lid (3) resting with its peripheral part (4') on the rim of the opening and having a substantially downwardly directed annular closure lip (5) which is joined to an annular bending lip (7) which is adapted to be moved hingedly between an upper and a lower position and which is provided with an inwardly directed shoulder (8) which engages under the thickening (2) or rim with the lid (3) fastened on the container (1) and which can be brought out of engagement with the thickening by turning the bending lip (7) upwards the bending lip (7) being joined by a hinge lip (6) to the closure lip (5) and, near the connection to the hinge lip (6), being provided with second, outwardly directed shoulder means (9) with a surface directed towards the outer side of the hinge lip (6) which is so shaped that when the bending lip (7) is turned into the lower p

Abstract: Known apparatuses to inject liquids, in particular plastics into injection moulds have closure rods which remain in the gating when the closure system is opened. In the present apparatus the liquid passage always is completely free when the closure system is opened, because the closure rod can be totally retracted from the liquid passage. This can be accomplished in two ways: either the liquid passage extends in a bended manner or the closure rod has a side view in the configuration of a sector or a circle.