On the smokeless fire-place : chimney-valves, and other means, old and new, of obtaining healthful warmth and ventilation (1855)
Arnott, Neil, 1788-1874 · London : Longman, Brown, Green, and Longmans · leaf 216
entering;and the same result may happen if the solid stoppage be only APPENDIX. 201 partial, that is to say, such as will allow water to pass by, onlyless quickly than it enters above; or if the stoppage be not bya solid obstruction at all, but merely by water detained in apart of the drain which… … In the last case it is evident that the syphon-trap of thecloset pan at A, shutting in the foul air betv^een A and B, hasless depth or resisting column of water than the accidentalsyphon-trap at B, and that air compressed between these willmore easily force its way at A into the closet and house…
Heating · Ventilation · Fireplaces
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