Hutton, Frederick Remsen, 1853-1918 · New York, J. Wiley & sons; London, Chapman & Hall, limited · leaf 645
iler. This is best guardedagainst by making the valves ofthe fixtures to be cocks operatedwith a handle whose positionindicates whether the valve isopen or closed (Fig. 479). Thethird objection is the invisibilityof the water in the glass when thewater is clean. This can be ob-viated by having a… … Fig. 479. slightly colored, and it can be detected with care even if it BOILER ACCESSORIES AND APPLIANCES. 587 is clean. The freedom of the connections between the gauge-glass and the boiler can also be insured when the boiler issteaming by observing the motion which the operation ofsteaming always…
Mechanical engineering · Steam power plants
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