| http://www.w3.org/ns/prov#value | - Conditioning means is provided for cont-rolling the condition of the drying medium comprising, in the present instance, a plurality of heating coils 40 in the conditioning chamber in the path of flow of the drying medium and inlet and outlet conduit-s 42 and 44 for circulating a heating medium such as steam thereth-rough, the inlet conduit having valve means 46 for selectively controlling the rate
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