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 1001
r hatchway, as is clearlyshown. The ends m m are fastened to the ends of thelever M but the sides n n are not connected with it, althoughin the illustration they look as if they were. The side nthat runs up from the right-hand side N sheave at the bot-tom passes over the N sheave at the left-hand…
