Hutton, Frederick Remsen, 1853- [from old catalog] · New York, J. Wiley & sons; [etc., etc.] · leaf 625
Fig. 481. BOILER ACCESSORIES AND APPLIANCES. 589 therefore must be modified for boilers whose water-level ishigher than convenient reach. Different forms of try-cockshave been introduced, operating either by a weight which hasto be lifted to open them, or else they are made like cock-valves which…
Mechanical engineering · Steam power plants
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