Modern locomotive engineering, with questions and answers .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & co · leaf 141
lve back just far enoughto permit a piece of thin tin to be inserted betweenthe edge of the forward port and the forward edge of fhevalve at point V. The valve is now in the correctposition for the forward port mark to be placed uponthe valve rod; so with a prick punch make a small cen-ter at C on… … Figure 62 move the valve ahead far enough to allow of theinsertion of the piece of tin between the edge of theback port and the back edge of the valve, as shown atV, Fig. 63. Now take the tram and from point C scribethe line B on the valve rod. Next, using a box square,scribe a parallel line on the…
Locomotives
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