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 186
henumber on the spring will cause a vertical movement ofthe pencil through a distance of one inch. Thus, if anumber 20 spring is used and the pressure in thecylinder at the commencement of the stroke is 20 lbs.per square inch, the pencil will be raised one inch, orif the pressure is 30 lbs., the… … IMPROVED TABOR INDICATOR WITH OUTSIDE CONNECTED SPRING.A.SHCROFT MFG. CO., N. Y. pressure of about. 10 lbs. less than atmospheric pressureor an absolute pressure of about 4 lbs. If a 60 springis used a pressure of 60 lbs. in the engine cylinder will 174 ENGINEERING be required to raise the pencil…
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