Garrè, Carl, 1857-1928, Barcroft, David M · New York : Wood · leaf 48
stos, the walls withthree coats of enamel; a powerful ventilator sucks up the air. METHODS OF MAINTAINING- A DIFFERENCE OF PRESSURE 33 A water valve provides for as constant a pressure as possible.The room is used at other times for other purposes ; when requiredit can be arranged as a cabinet for… … Fig. 17.—Universal differential cabinet by W. Meyer. decrease of pressure in the course of one and the same operationby combining two cabinets in one apparatus which functions as awhole. He calls it the universal differential cabinet. The cabinetsare constructed of a frame of iron wire and a…
Lungs · Tuberculosis · Scientific apparatus and instruments · Lung
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