Abstract: A power-generating apparatus includes a compressor section and a combustor section positioned downstream of the compressor section. The combustor section defines a combustion chamber operable to receive compressed fluid from the compressor section. The apparatus includes a turbine section positioned downstream of the combustor section operable to receive combustion gases from the combustion chamber and convert the combustion gases into kinetic energy. The apparatus also includes a waste container positioned downstream of the turbine section and exposed to the discharged exhaust gases. The waste container can hold waste material that receives the hot exhaust gas and combusts, further heating the exhaust gases. The apparatus also includes a conduit having an inlet fluidly communicating with the turbine section and receiving the exhaust gases. The apparatus also includes a heat exchanger operably disposed between the compressor section and the combustor section to heat the compressed fluid.

Abstract: A back for a patient chair with which a patient may be moved from a generally upright sitting position to a generally supine position comprises a back shell and a cushion. The back shell has a front surface, a back surface, a top, a bottom, opposed first and second outer sides, a central section extending longitudinally from a region adjacent the top to a region adjacent the bottom and opposed side sections extending laterally outwardly from the central section toward the first and second outer sides. The cushion is attached to the back shell. The central section of the back shell comprises a plurality of stiffening elements that extend longitudinally of the back shell. A patient chair including the back is also described.

Abstract: A back for a patient chair having a back shell with a substantially rigid central S-shaped central portion and laterally extending wing portions which have sufficient flexibility to allow deflection in the direction of the front surface upon imposition of a force. The back consists of a formed back shell, a cushion layer laid thereover and an upholstery layer covering the cushion, with the upholstery layer adhered to the cushion and having edge margins wrapped around the outer edge margins of the cushion. The cushion and upholstery material are secured to the back shell through adhesive applied between the wrapped over edge margin portions of the upholstery material and the back shell.

Abstract: Method for detecting marks (3) present on a paper web (1), which consists of successively producing and preferably recording light-intensity data in the form of intensity indications, using two alternate set-point values of light intensity representative of the presence of a mark or a non-mark. The method uses a process, deciding whether a certain light-intensity indication (V(new)j), shall be attributed to a mark, by selecting as a set-point value (V(old)j), one of the two alternate set points, either the nearest preceding indication (V(old)j) which has been adjudged as indicative of a non-mark and which essentially indicates light background of the paper web (1), or a preceding indication (V(old)j) which has been adjudged as indicative of a non-mark and which has been subjected to an intensity reduction of pre-determined magnitude (UP). There is also an apparatus for carrying out the method.