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
now at 1800, the farthest point ofits throw in that direction, the valve being at the endof its travel. At this point it might be well to note a VALVES AND VALVE SETTING 137 matter about which some persons are liable to becomeconfused, simple as it is, viz., that the travel of a slidevalve equals… … 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…