Johnson's natural philosophy and key to philosophical charts : illustrated with 500 cuts; being reduced photographic copies of all the diagrams contained in the author's philosophical series of indestructible school charts ; for the use of schools and families (1878)
savemetal. From this band extends a rod. A, called the eccentric-rod,,which is welded to, and is a part of, the valve-rod, as H in the lastdiagram. Operatiox.—As the shaft, S, revolves, the wheel turns in the l)and.Suppose the shaft to be revolved half a turn, which is accomplished bya single… … 190 HEAT AND STEAM-ENGINE. ence of the wheel, in its former position, to the upper point of thedotted circle; which is sufficient to shift or reverse the valves. Thus,at every stroke of the piston and every half revolution of the shaft, thevalves arc reversed by the eccentric. 351. Figure…
Physics · Astronomy
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