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 482
owing the indicator to cool. Itis in line with the piston, and is supported by two standardsconnected at the top by a cross bar, having a screw for at-taching the upper end of the spring. The lower end isconnected to the top of the piston. The piston rod andconnections are made hollow and as light… … Fig. 164american outside spring indicator 470 Steam Engineering until it is free from the base. To prevent the piston fromturning while removing the spring, insert a steel pin, fur-nished with the indicator, in holes in the spring base. Figure 165 shows the three-way cock for attaching theindicator…
