Modern locomotive engineering, with questions and answers .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & co · leaf 190
ve seat is the result. In applying the valve to the engine it is importantthat the face of the balance plate, or upper valve seat,shall be in alignment with the cylinder seat in order tosecure simultaneous action of the valve, at both faces,as previously explained; this is accotnplished invarious… … i84 LOCOMOTIVE ENGINEERING « cylinder and to open direct communication from one side of the piston to the other for the free passage of air in drifting. In this connection, it should be observed that the balance plate will leave its seat on the valve while the valve remains on the valve seat, and…
Locomotives
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