Hartford Steam Boiler Inspection and Insurance Company · Hartford, Ct. : Hartford Steam Boiler Inspection and Insurance Co · leaf 239
ncerned, yet there are a con-siderable number of them still in use. The modern spring loadedpop safety valve is a comparatively reliable piece of apparatus butit can become, through neglect, a positive menace to safety. It is the intention in this article to explain the action of asafety valve, to… … *»A>A>////\ Fig. i. deal with the care and inspection service that safety valves shouldreceive. The dead weight type of valve, which is perhaps the oldestand at the same time the simplest, is illustrated in the cross sec-tional view Fig. i. The actionof the weights is very direct and,as will…
Locomotives · Steam-boiler explosions
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