Modern locomotive engineering, with questions and answers .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & co · leaf 173
of which is the outside admission indirect con-nected valve, receiving its motion through the medium^f the familiar rocker shaft, with one arm up and the other arm down.Second, inside ad-mission direct, inwhich both arms ofthe rocker extendeither up or down,and the forward mo-tion of the… … Figure 74 center of the shaft through the heavy portions of theeccentrics would be approximately in the same positionas would the hands of a watch indicating five minutesto seven oclock, assuming the crank pins to be at 9oclock (see Fig. 74). Third, outside admission direct,in which the rocker arms…
Locomotives
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