Abstract: The invention relates to adjustable storage arrangements, such as racks, which may be readily erected and dismantled from a plurality of interconnectable, elongate shaped members comprising uprights and/or cross-pieces, at least some of which have substantially the same, open or channel cross-section, generally resembling a triple "sigma" contained within a rectangle. Trapezoidal re-entrant areas are provided on three sides of the said cross-sectional shape, and equidistant engagement apertures are situated in at least one line parallel to the longitudinal direction of each shaped member which comprises an upright, in the larger side of the upright opposite the open side thereof. Angle brackets are secured generally perpendicularly to the ends of the shaped members which form the cross-pieces, which brackets are capable of fitting round the front part, and either the right or left-hand part, respectively, of the triple-sigma-shaped upright.

Abstract: A method and apparatus for the dehydration of cattle and horse manure, cow dung or pig droppings, characterized by the action of a flow of hot air and of ultrasonic radiation along the path of the matter to be dehydrated, and that of microwave radiation at a preferred frequency of 2450 MHz which produces internal heating, these actions taking place separately or in conjunction. Manure from which gas has previously been removed by aspiration at temperature lower than that of self-ignition, is utilized. Combustible gases are recovered and used preferably to the heating of the air.Two types of apparatus are envisaged, one incorporating a conveyor belt and the other a helical worm provided with a plurality of perforations for the hot air to pass through. The ultrasonic radiation accelerates evaporation and discourages matter from adhering to the surfaces.