Abstract: A frame structure for supporting individual magnetic coils forming a magnet system used in nuclear spin tomography comprises several frame parts made from a ferromagnetic material to provide relatively simple magnetic shielding. The individual magnetic coils are concentrically aligned one behind the other along a common axis to form the magnet system. Several elongate beam, rod, or plate-shaped magnetic shielding elements extend parallel to the common axis and are evenly distributed in the circumferential direction around the magnet system thus forming a generally cylindrical surface. End-plate magnetic shielding parts having a central opening of predetermined radius are provided at the end faces of the cylindrical surface formed by the shielding elements to create a cage-like frame structure. Coil receiving elements can be used to rigidly connect the axis-parallel shielding elements with the individual magnetic coils.

Abstract: A device for cooling a magnet system, especially in an installation for nuclear spin tomography which magnet system comprises several annular magnet coil windings which are made of ribbons of normal conducting material and are connected at their end faces over a large area to cooling elements in a heat conducting manner, the cooling elements cooled by a cooling medium flowing in coolant lines under forced flow. To assure an effective and reliable cooling of the coil windings on each end face of a magnet coil winding, a predetermined number of identically designed cooling elements uniformly distributed in the circumferential direction is cemented on, each cooling element comprising at least a heat conduction plate of annular sector shape which is provided with a predetermined number of slots uniformly distributed in the circumferential direction and to which the coolant line is connected over several turns in a heat conducting manner.

Abstract: Gaiter for gravity relieving apparatus comprising a casing arrangement for encircling the lower leg at least in the region of the ankle and having two padded casing parts flexibly connected together by means of lacing means, which casing arrangement is constructed for opening for donning and removal and is provided with means for suspending the gaiter aloft.

Abstract: A handy, compact and easily transportable apparatus for relief of intervertebral discs and for stretching of the vertebrae and the hip joints by means of gravity, having a support element suspendable on a door, a wall or the like, and a suspension device connected with this for the feet, in such manner that even unpracticed and awkward persons without support by a helper, i.e. completely alone, can achieve the suspended position. The suspension device is connected via a cable line with the support element and provided with a coupling device for suspension gaiters.

Abstract: An adjusting and holding assembly for magnet coils in a nuclear spin tomography system includes mechanical adjusting devices connected to a frame structure for the mutual alignment of the connected to a frame structure for the mutual alignment of the base field magnet coils. In order to enable a relatively simple adjustment of the individual magnet coils to produce a highly homogeneous base field, at least one of the magnet coils is rigidly connected to the frame structure, while each adjustable or positionable magnet coil is held at three points via at least one support device and three adjusting devices within the frame structure. Each support device comprises a support element in the form of a spherical sector rotatably mounted to a respective coil and slidably resting on a horizontal support surface of the frame structure.

Abstract: In an arrangement for preparing a sectional image of the body, the picture elements of which are derived from the absorption of ionizing rays, the detector system contains detectors associated with a cooling system having a cooling finger against which the cooling surfaces of the detectors rest and which is connected via a cryogenic line to two coolant tanks which are arranged in the plane of motion of the detector system centrally symmetric to the center of rotation. As a result the rotating detector system with the coolant supply requires no automatic mass equalization device adapted to the consumption of coolant, and the cooling system can be designed for different operating times.

Abstract: A method of continuous production of refined chocolate mass from a non-refined cocoa mass composed of a mixture of components reduced in size to a fineness required for the final mass but still containing undesired aromatic substances and moisture and being processed into a low fat, friable or pulverized chocolate mass, is mixed in a plasticator with a preheated air stream which is admitted in the same feeding direction, simultaneously externally heated for a time interval between 5 and 8 minutes while being intensively mixed by shearing stresses until the mass becomes plasticized; thereupon the fluidity of the mass is increased by an emulsifier, then the entrained gas is separated from the mass, the latter is weighed and supplemented according to a final recipe by additional fat content, and the final mass is collected in a container and subjected to an additional homogenizing treatment and in a cooled condition is forwarded for the final processing.

Abstract: In order to relieve the neck vertebrae or the lumbar vertebrae, a patient suspends himself, either by his head, using a Glisson sling, or by his feet, from a pivotable bracket mounted on one side of a support element which is connected to a counter-support by at least one flexible element which passes over the top of a door.

Abstract: A magnetic suspension bearing for a rotating body having at least two magnet systems of coaxial permanent magnets arranged sequentially along the axis of rotation of the rotating body. Each magnet system is provided with two permanent magnets disposed on the rotating body and a stator, respectively. Each such permanent magnet is magnetized in a direction perpendicular to a major external surface, the adjacent surfaces of the magnets within a magnet system being of like polarity so as to repel one another. Each of the magnets is constructed so as to form a truncated cone, the axis of which coincides with an axis of rotation of the rotating body. In one embodiment, the apex of the cones are directed towards one another. The apex angle of the cones is advantageously preselected to provide desired axial and orthogonal components of force.

Abstract: A gas generator which comprises a heat resistant housing and a reaction chamber which is centrally arranged therein and contains a catalytic charge, with an inlet opening for the reactants and an outlet opening for the fuel gas is used for catalytically reacting liquid, hydrocarbon containing fuel to be evaporated with an oxygen containing gas at elevated temperature to form a fuel gas. The housing consists of a lower part and a removable cover and the reaction chamber including the catalytic charge is replaceable. The fuel and/or the oxygen containing gas is fed to the reaction chamber for preheating and evaporating, respectively, via a system of tubes which is arranged between the reaction chamber and the lower part of the housing and is run around the reaction chamber in helical fashion.

Abstract: A starting device for reformed gas generators of the type in which atomized or evaporated liquid, hydrocarbon containing fuel is catalytically reacted with a gas containing oxygen at elevated temperatures to form a fuel gas, includes a conically shaped housing having an outlet for coupling to the inlet of the reformed gas generator, a gas permeable burner plate within said housing, a fuel injection nozzle arranged so that nearly the entire surface of the burner plate is supplied with fuel, a heat-resistant, gas permeable terminating plate filling, the outlet of the starting device and defining, with the burner plate, a combustion chamber, an ignition device disposed in said combustion chamber and means for introducing the air and atomized fuel into the combustion chamber through the burner plate.

Abstract: A gang saw is used for cutting up hard and brittle material, particularly semiconductor material, in which saw there is a reciprocating movement of workpiece with a large amplitude and low frequency and an additional vibrating motion of the sawblades in the same direction with a low amplitude and high frequency permitting very thin wafers of large area and a plane cutting surface to be prepared.