Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise on the care and management of steam engines, boilers and electric machinery (1922)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 1009
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 bymeans of valve rod L. Moving the pilot valve will either
