Illustrations of the theory and practice of ventilation : with remarks on warming, exclusive lighting, and the communication of sound (1844)
Reid, D. B. (David Boswell), 1805-1863 · London : Longman, Brown, Green, & Longmans · leaf 152
. Fig. 100.—Similar to 94, but provided with a centraltable covered with perforated zinc, from which air passes to thecentre of the apartment, without involving the necessity of usingthe floor. 264. Fig. 101.—Illustration of a still more extended arrange-ment more particularly applicable to… … Fig. 101. J/ #J I i >; bK-^ ,-;i5IC, ,-:; C ~x~5 Wi_ operations render them powerful, and where a crowd and a fre-quent promenade necessarily subject them greatly to the alter-nate influence of dust and moisture. By the arrangement shewnhere, all dust is carried downwards at once by the…
