Siemens Aktiengesellschaft

Arnolf Maurer

Siegfried Birkle

Johann Gehring

Werner Elsel

Waldemar Nippe

Horst Siebold

Ju/ Rgen Fischer

Known large vibrating conveyors are not readily suitable as such for conveying bulk materials or small articles into or out of a liquid bath, because the liquid transmits the vibrations to other structural parts, for example a vessel for the liquid, as a result of the incompressibility of the liquid. In order to remedy this, the vibrating conveyor device according to the invention has a compressible space or chamber underneath the vibrating part which damps the vibrations, when suitably coordinated with the liquid bath. The space is preferably gas-filled and its damping properties can be varied by feeding additional gas through a line which can be shut off by a member, or by bleeding some of the filling through a further line which can likewise be shut off by a member.

Vibrating conveyor device dipping into a liquid with damping of

Device for transporting bulk material comprising a vibrator conveyor

The gradient coil system for a nuclear spin tomography installation encloses a hollow cylindrical support body, the cylinder axis of which extends in the z direction of an orthogonal x-y-z coordinate system with the coordinate origin in the imaging center, in which direction also the magnetic field B.sub.z of a base generating a field gradient G.sub.z, at field magnet is oriented. The gradient coil system contains for least two ring-shaped individual coils which are arranged symmetrically to the x-y plane extending through the imaging center, and furthermore, pairs of saddle-shaped individual coils arranged symmetrically to this plane, for generating field gradients G.sub.x and G.sub.y. In this gradient coil system, the sound level caused in the hollow cylindrical support body is reduced by rigidly connecting the prefabricated G.sub.x and G.sub.y gradient coils which lie on one side relative to the x-y symmetry plane to each other to form self-supporting partial baskets and by means of several non-magnetic carrier elements extending in the z direction forming a common self-supporting coil basket from these partial baskets to which the prefabricated G.sub.z gradient coils are fastened; and attaching this coil basket to the carrier body via insulating elastic support elements.

Gradient coil system for a nuclear spin tomography installation

Growing community of inventors

Bubenreuth, Germany

Arnolf Maurer