Twentieth century hand-book for steam engineers and electricians, with questions and answers .. (1905)
Swingle, C. F. [from old catalog], Horstmann, Henry Charles, 1858- [from old catalog], Tousley, Victor Hugo, 1875- [from old catalog] · Chicago, F. J. Drake & co. · leaf 227
FIGURE 59. a pretty fair job was made of it, as will be seen byreferring to Fig. 59. The reducing motion was apantograph, described in Chapter VIII, and as it isvery easy to vary the travel of the paper drum withthis motion, diagrams of different lengths were takenuntil the one which appeared to be… … FIGURE 60. tory was obtained. The slight hump in the expansioncurve immediately after cut off was probably causedby a speck of dirt or grit which momentarily checkedthe indicator piston on the down stroke. The com- DIAGRAM ANALYSIS 215 pression on the crank end is not sufficient and theexhaust…
