Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise .. (1916)
Swingle, Calvin F. (Calvin Franklin), b. 1846 · Chicago, F.J. Drake & company · leaf 755
small piston inplace for gas engine work. The pencil arm is of extrastrength to withstand the shock due to the explosive press-ure exerted upon the piston. The drum is of small dia-meter and extremely light to reduce the effect of inertia toa minimum. 738 Steam Engineering The tension of the drum… … Fig. 306a lowered on the paper according to the size of the diagramto be taken. Fig. 306A shows the new Crosby indicator designed fortaking continuous diagrams. The drum is designed to use Gas Engine Indicator 739 a roll of paper 2 inches wide and 12 feet long, upon whichis made in the operation of…
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer03inte-716-417.webp)
