摘要:
An internal reinforcement structure of a plastic fuel tank resists deformation of opposing walls of the fuel tank and provides an integral, and directionally sensitive, stress relief feature when pre-determined forces are exceeded. The stress relief feature is contained within a fuel chamber of the fuel tank defined by the opposing walls. Each wall has an inward projecting indentation of the structure which engage one-another at their distal ends or bottom portions, preferably, via a welded plastic engagement area. The indentations have a consistent wall thickness which has a higher cross-sectional area than the stress relief feature causing the stress relief feature to tear as opposed to the tank walls thereby assuring fuel tank integrity.
摘要:
An escalator or a moving walkway having a plurality of steps or panels which are each guided on rails, via running rollers and idling rollers. A distance sensor is integrated in or on the rail and senses, in particular, the deviation in diameter of the running or idling roller running over it.
摘要:
People conveyor (2) including an endless conveyor band (4) extending through an inclined portion (6), a first and a second turnaround portions (8) and a return portion (5) of an endless path and comprising a plurality of steps (10) connected to and driven by a step chain (12), the steps (10) comprising a step roller (18), the people conveyor (2) further including a step roller track (20) for guiding the step roller (18), the step roller track (20) extends along the path of the conveyor band (4) and has an inner and an outer rails (24, 22) for supporting the step roller (18), and a device (20) for restraining the step roller (18) against one of the inner and outer rails (24, 22).
摘要:
People conveyor (2) including an endless conveyor band (4) extending through an inclined portion (6), a first and a second turnaround portions (8) and a return portion (5) of an endless path and comprising a plurality of steps (10) connected to and driven by a step chain (12), the steps (10) comprising a step roller (18), the people conveyor (2) further including a step roller track (20) for guiding the step roller (18), the step roller track (20) extends along the path of the conveyor band (4) and has an inner and an outer rails (24, 22) for supporting the step roller (18), and a device (20) for restraining the step roller (18) against one of the inner and outer rails (24, 22).
摘要:
The invention relates to an amplifier, in particular for a cable or optical network, for downstream and upstream signals that are transmitted in different frequency bands. The amplifier comprises, a first and a second connector, a common amplifier element for downstream and upstream signals, a first and a second downstream-signal filter, and a first and a second upstream-signal filter. An input of the amplifier element is connected to an output of the first downstream-signal filter as well as to an output of the first upstream-signal filter; an output of the amplifier element is connected to an input of the second downstream-signal filter as well as to an input of the second upstream-signal filter; the first connector communicates with the output of the second upstream-signal filter and the input of the first downstream-signal filter; and the second connector communicates with the output of the second downstream-signal filter and the input of the first upstream-signal filter.
摘要:
The present invention relates to a reconstructed skin model, characterized in that it comprises an epidermis equivalent on a support, the said epidermis equivalent comprising at least keratinocytes and at least induced or noninduced precursors of Langerhans' cells, as well as the process for preparing the said skin equivalent.The invention also relates to an epidermis equivalent, characterized in that it comprises at least keratinocytes and at least induced or noninduced precursors of Langerhans' cells and to the process for preparing it.
摘要:
A method of preparing pharmaceutical preparations for oral administration, free of organic solvents. The method employs solidified melt granulates of an active ingredient in admixture with a meltable auxiliary substance which is soluble in the active ingredient at elevated temperatures.
摘要:
To absorb thermal expansions and relative movements, as well as to transmit torques, compensators, which are provided with an overtensioning device, are installed between the tuyere connections of a blast furnace and the hot-blast circulating duct. During the regular replacement of expendable parts of the tuyere connection, at least the elbow (4) must be removed as well, so that the intermediate pipe section (5) lined with refractory material will hang freely on the compensator (1). To achieve short replacement times, the compensator (1) is fixed according to the present invention by means of a locking device, and again disengaged on completion of the maintenance work. The locking device includes two flat bars (6), which are rigidly connected at the upper compensator flange (7). Threaded bolts (9), which extend into the flat bars (6) through openings (12), are fastened at the lower compensator flange (8). To fix the lower compensator flange (8), nuts (10) and lock nuts (11) are screwed onto the threaded rod (9) and pressed against the flat bars ( 6) in a frictionally engaged manner by tightening the lock nuts (11). As an alternative, locking of the compensator (1) may also be performed hydraulically. In this case, a mounting pressure cylinder is inserted into an opening of the compensator flange (8) and is pressed against the respective flat bar (6) by means of a hydraulic pump.
摘要:
Method and apparatus for operating a conching device with a trough (1) in which at least one rotor, driven by at least one electric motor (9), is arranged. This rotor is fitted with refining tools spaced apart in axial distances to one another around its periphery. The driving motor is controlled by means of a motor control unit in dependency upon a difference signal of a performance-regulating circuit (22), gained by comparison (6) between a desired nominal value (7) and an actual value (5) of at least one motor performance parameter (22).To perform the conching process in the minimum possible time, it is provided that the difference signal of the performance-regulating circuit (5-8) remains ignored during at least a time interval. Thus, the driving motor (9) can take a maximum motor current, and it runs up to the speed required within a very short time.