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 146
reliable, is known as the Bourdon spring gauge (see Fig.53). This gauge consists of a thin, curved, flattened metal-lic tube, closed at both ends and connected to the steamspace of the boiler by a snxall pipe, bent at some portion ofits length into a curve or circle that becomes filled with Boiler… … Fig. 53 AUXILIARY SPRING PRESSURE GAUGE, SECTIONAL VIEW the spring, tending to straighten it. The end or ends ofthe spring being free to move, and connected by suitablegeared rack and pinion with the pointer of the gauge, this 134 Steam Engmeering hand or pointer is caused to move across the dial,…