Abstract: The processor is of the type incorporating horizontal, concentric, co-extensive inner and outer tubular members which rotate together. The processor is modified in the following respects:The front end of the inner tubular member is circumferentially corrugated and may be provided in the form of a plurality of parallel tubes arranged in a ring array, to thereby increase the shell area to promote heat transfer through the tube walls;Means are provided for interconnecting the tubular members, which means can accommodate differing rates of thermal expansion; anda rock recycle tube assembly is provided to recover oversize material leaving the corrugated portion of the inner tubular member and reject it from the processor.

Abstract: The processor is of the type incorporating horizontal, concentric, co-extensive inner and outer tubular members which rotate together. The processor is modified in the following respects:The front end of the inner tubular member is circumferentially corrugated and may be provided in the form of a plurality of parallel tubes arranged in a ring array, to thereby increase the shell area to promote heat transfer through the tube walls;Means are provided for interconnecting the tubular members, which means can accommodate differing rates of thermal expansion and;a rock recycle tube assembly is provided to recover oversize material leaving the corrugated portion of the inner tubular member and reject it from the processor.

Abstract: Basement flooding due inter alia, to drain overflow or sump pump failure is a common problem. An apparatus for solving the problem includes a cover for closing a basement floor drain, a tubular casing extending through the cover into the drain, a pair of spaced apart conductors in the casing for completing an electrical circuit when water rises through the open bottom end of the casing to a predetermined level, and a control circuit connected to the conductors and to a solenoid valve in the building water supply pipe for closing the latter, so that no additional water enters the drain to exacerbate an already bad condition. A second pair of spaced apart conductors on the floor of the basement is coupled to the control circuit to give the same response in the presence of floor moisture. An audible alarm is sounded as part of the response to detected water.