Abstract: The invention concerns a gas-porous plug in the form of an interstitial flushing device in which the gas passage ducts are in the form of interstices. The opposite walls of the interstices are monolithically interconnected by flat bridges of refractory material. The gas-porous plug can be produced by means of a conical hollow body (1) whose side wall (2) comprises apertures (3). The hollow body (1) is inserted into a casting mould (4) which is subsequently filled with a refractory casting compound.

Abstract: Besides fixed display element information for merely displaying a fixed screen, variable display element information for variably displaying a variable display element whose display content changes, input element information representing the relationship of correspondence between the input means and an operation switch contained in a relevant component, and the operation program information for operating the relevant component as required, which are necessary for the relevant component to completely function as a component, are capable of being set and registered with respect to component data. In addition, the set and registered component is allowed to be handled in a component data unit when user screen data is generated. Accordingly, if the components are registered in a library, the possibility of use by a third party can be drastically increased, and the number of work steps during the screen generation by the user can be drastically decreased.

Abstract: A lift is provided for a personal watercraft and includes two relatively elongated channel members each of a generally C-shaped transverse cross-section. A carriage carrying a platform upon which the personal watercraft can be supported is mounted for sliding movement between the elongated channel members through a cable, winch, reversible electric drive motor and associated gears and pulleys. When the carriage is located within the upper channel member, the latter, the platform and the personal watercraft can be swung about a vertical axes to rotate the personal watercraft between two different positions 180.degree. removed.

Abstract: In order to control cotton fibre fluctuation between the compactor device (5) and the drafting unit (6) within a card (1A), the drafting unit (6) can be moved (either along a rectilinear trajectory and/or along a circular trajectory) between a first position (L) coinciding with its maximum distance from the compactor device (5) and a second position coinciding with its minimum distance from said compactor device (5) until said distance is reduced to the minimum possible. The distance between the drafting unit (6) and the compactor device (5) varies in a manner inversely proportional to the operating speed of the card (1A). In an alternative embodiment:a support and guide element (40) for the web (9) is positioned between the doffer (2) and the pair of rollers (7, 8) of the compactor device (5);a conveyor device (24) is interposed between the compactor device (5) and the drafting unit (6) (FIG. 2).

Abstract: Apparatus for seaming an end E to an open end of a container body B in at least first and second seaming operations comprises a lifter pad to support the container body, a seaming chuck to support the end in place on the container body, and an annular seaming tool having at least first and second annular seaming profiles on its inner surface which surrounds the end. The apparatus includes drive means for providing relative rolling movement between the seaming tool and the end in which the drive means drives the annular seaming tool to gyrate around the can end. Means are also provided for causing relative movement between the end and the annular seaming tool, from a first relative position in which the first seaming profile can contact the end E to perform the first seaming operation, to at least a second relative position in which the second seaming profile can contact the end E to perform the second seaming operation.

Abstract: A snow making gun of the present invention includes a cylindrical housing carrying a motor and a fan which creates an air current into which water is injected from a ring water manifold via a plurality of nozzles having discharge orifices. An adjustable nucleating mechanism is associated with the manifold to optimize snow making under a variety of ambient conditions of pressure, humidity and temperature. Preferably, the water manifold or a portion thereof is removable so that nozzles having orifices of the first size can be replaced by an identical water manifold having nozzles whose orifices are of a different size. By utilizing quick connect/disconnect clamping elements a water manifold and its associated nucleating mechanism can be rapidly removed from and another applied to a cylindrical housing of an associated snow gun to assure that optimum artificial snow is made under any and all conditions.

Abstract: The accommodating device for a portable PC (24), particularly for a notebook and for peripheral devices such as a printer (22) and telecommunications devices, comprises a principle power supply unit (26) which can be connected to a voltage network for generating required operating voltages for the peripheral devices from the voltage network, and a separate PC power supply unit (28) which can be connected to the voltage network for generating the required operational voltages for the PC (24). Both power supply units (26,28) are arranged underneath the PC (24). Further, a cooling air flow generator (34) generates a cooling air flow to cool the principle power supply unit (26). The PC power supply unit (28) is arranged in the cooling air flow.

Abstract: The press-fitting device for the connection of a tube, particularly a plastics tube or a plastics/metal/plastics compound tube, is provided with a connection body (12) comprising a substantially cylindrical connection portion (18) adapted for mounting thereon the end of the tube (39) to be connected. At least one deepened portion (20) formed in the connection portion (18) of the connection body (12). The annular sealing element (28) provided for sealing the connection body (12) with respect to the tube (39) in the connection portion (18), is made from a cross-linked polymeric material, the sealing element (28) extending over the at least one deepened portion (20). A pressing shell (42) is provided for radially pressing the tube end to the connection portion (18) of the connection body (12).

Abstract: The circuitry for operating a glow discharge path (GES) comprises a bridge circuit (BC) comprising a polarity switch (S1) and an ignition pulse circuit (ZIS1) in a first bridge branch (B1) and a polarity switch (S2) and an ignition pulse circuit (ZIS2) in a second bridge branch (B2). The glow discharge path (GES) formed between two electrodes (E1, E2) is located in the transverse branch of the bridge circuit (BC). For changing the polarity of the glow discharge path (GES), the polarity switch (S1) of the one bridge branch (B1) can be operated together with the ignition pulse circuit (ZIS2) of the other bridge branch (B2). Thus, each of the two electrodes (E1, E2) of the glow discharge path (GES) can be used as a cathode. The cathode of the glow discharge path is cleaned by the impinging ions.

Abstract: A material transfer device for continuously feeding or outputting strand material into or out of a treatment room, as well as to a material transfer structure. In order to maintain a desired treatment atmosphere in the treatment room, a material transfer device which is free from wear and trouble and has a good sealing effect. The material transfer device has a passage element, an inlet opening of which has a variable cross-section. The cross-section is either varied by a pressure device or by internal forces in a circumferentially expansible tube. Further, a pulling device pulls the strand material through the passage element. A plurality of chambers are arranged one behind the other, through which chambers the strand material travels both towards and out from the treatment chamber. The material passages of the chambers each have locks.

Abstract: In order to be able to continuously operate a storage and conveyor system, consisting of two main conveyor tracks running parallel to each other and containing storage locations for goods in a minimum of space, in such a way as to allow retrieval of specific goods at the ends of the main conveyor tracks, it is proposed that the ends of the main conveyor tracks be connected by two cross-conveyor tracks, arranged at right angles to the conveying direction, consisting of two track sections, located one behind the other and capable of being separately raised and lowered in vertical direction, these cross-conveyor tracks being movable in the conveying direction of the main conveyor tracks.

Abstract: An acoustic device for measuring volume difference between a standard object and an object to be measured comprises a reference container, a measuring container connected to the reference container via a separator, a loudspeaker provided at the separator, for cyclically provides complementary variations in volume to these two containers, microphones for detecting pressure variations inside these respective containers, and a signal processor for measuring a ratio between the magnitude of the detected pressure variation inside the reference container and the magnitude of the detected pressure variation inside the measuring container, and obtaining a difference in volume between the object to be measured and the standard object from the measured ratio when the standard object is placed into the measuring container and the measured ratio when the object to be measured is placed into the measuring container.