valve to be bevelled ; P is the steam expansion used. cne, we have appended to the notice an addition which will port. Fig.5, A,is a ; Figs.8 and 9, will make this matter clearer by showing the prove serviceable, in a practicai point of view, to a large num- boss keyed to the relative working of… … preceding one. This valve, Fig. 1, has neither inside lap nor Fig.8 shows the relative directions and posisi.is of the pis- clearance, and if the inside space was shortened up to the ton and slide during the whole down stroke of the piston. dotted lines, B B, it would have inside lap because it…
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