Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise on the care and management of steam engines, boilers and electric machinery (1922)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 754
o instruments lies inthe details of construction, the gas engine indicator being Gas Engine Indicator 737 more strongly made in order to withstand the sudden shock,and higher pressure of that engine^ as compared with thesteam engine. Firms manufacturing indicators make acombined steam and gas… … Fig. 306 smaller piston is used. Fig, 306 shows a Crosby combinedgas, and steam engine indicator with the 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…
