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 478
cock connecting the cylinders of the engine andindicator is closed, both ends of the indicator cylinder areopen to atmospheric pressure, and the pencil then standsat its neutral position. If now the pencil is held againstthe paper and the drum rotated either by hand or by con- The Indicator 465… … Fig. 161sectional view crosby indicator Figure 161 shows a sectional elevation of the Crosbyindicator, and will give the student a good idea of its in-terior construction. Figure 162 shows the spring. 466 Steam Engineering If the engine is a non-condensing engine the pencil intracing the diagram…
