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 150
FIGURE 17. towards the right and is about to return. It firstcovers port number one = \% in. Next it moves tomid travel lap number one = 2% in. Its next move islap number two = 3^ in., and lastly it uncovers portnumber two = 4^ in., which is its travel.To return to the third function of the valve… … FIGURE 18. off, Fig. 16. The crank has now traversed 1200 andthe highest point of the eccentric is at 60 ° on thereturn circle, a point equivalent to 240 ° of the circledescribed by the crank. The fourth function is when compression begins atthe head end of the cylinder, Fig. 17. The crank is 138…
