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 187
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 one inch, or 90 lbs. toraise it \y2 in. The Ashcroft Manufacturing Co. of New York,makers of the well known Tabor indicator, haverecently…
