Twentieth century hand-book for steam engineers and electricians with questions and answers; a practical non-technical treatise .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 1003
Fig. 401 In Pig. 401, which is a side elevation, it will be seen thatif lever S is moved in either direction, the rods m m will … Fig. 402 cause shaft M to rock, thus moving the pilot valve by ,||means of valve rod L. Moving the pilot valve will either 1^
