Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise .. (1916)
Swingle, Calvin F. (Calvin Franklin), b. 1846 · Chicago, F.J. Drake & company · leaf 517
Fig. 1S9 made of it, as will be seen by referring to Fig. 189. Thereducing motion was a pantograph, and as it is very easyto vary the travel of the paper drum with this motion,diagrams of different lengths were taken until the one which … Fig. 190 appeared to be the most satisfactory was obtained. Theslight hump in the expansion curve immediately after cutoff, was probably caused by a speck of dirt or grit whichmomentarily checked the indicator piston on the down Diagram Analysis 505 stroke. The compression on the crank end is not…
