Messerschmitt-bolkow-blohm Gmbh

Gesellschaft Fur Kernforschung M.b.h.

Johann Baptist Rombach, Karlsruhe, Gmbh & Co. Kg

Peter Happe

Wilhelm Bier

Peter Bichler

Rudolf Waldhoer

Ludwig Ebner

Gerd Tybus

Frowald Weis

A cutoff device for pipelines has a unilaterally clamped flexible closure strip which can be unrolled onto a valve seat wall which is provided with through-flow openings. A roll is provided upon which the flexible closure strip is rolled and from which the strip is unrolled, the winding roll being so disposed as to be displaceable back and forth along the surface of the valve seat wall. The winding roll is tensioned so as to insure proper displacement of the flexible closure strip onto and off the roll and off and over the through-flow openings.

Pipeline cutoff device

Gas separation nozzles are produced by machining the nozzle parts, such as a holding body and separation elements by moving sectional material, for example, prefabricated sectional steel or aluminum alloy rods through a high precision sliding guide path past a shaving tool, whereby the workpiece is pressed against supporting and retaining surfaces of the guide path at least at three points and a shaving tool is applied to the moving workpiece in an area defined by said three points so that the tool is effective as close as possible to the pressure applying points or areas. At least two separation elements are supported in a dovetail groove of a holding body so that nozzle edges of the elements extend into a gas deflection groove in the holding body. Where four separation elements are held in a common dovetail groove of the holding body, two of the four elements are provided with a gas deflection groove extending along its respective nozzle edge. The arrangement is such that the nozzle edges of one pair of separation elements extend into the gas deflection groove of the other pair and vice versa. The holding body may be provided with assembly means such as further dovetail grooves and tongues for assembling a plurality of such separation nozzles into an integral structure.

Gas separation nozzles and method and apparatus for producing such

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Eggenstein, Germany

Peter Happe