STEAM ENGINES. 277 gases, must be laid in the diagram, which case will be considered later. Fig. 2 shows a perfect card as it ought to be, but seldom is. Fig. 3 shows slow admission of the live steam, because the pis- ton has traveled part of the stroke before sufficient steam opening … was had to prevent throttling of the steam. In this case either the lead of the eccentric or the lead of the live steam valve must be increased. For the purposes of this chapter it will hereafter be considered that the lead of the eccentric is correct, as advised in the chap- ter on steam engines…
Brewing · Malt
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