Kirkman, Marshall M. (Marshall Monroe), 1842-1921 · New York and Chicago, The World railway publishing company · leaf 118
Fig. 31.Utica Duplex Air Gauge. It is virtually two gauges in one, as but half of thedial is used for train-line pressure and the other halffor main reservoir pressure. LOCOMOTIVE APPLIANCES. 109 … Fig. :«.Utjca Duplex Air Gauge. The interior of this gauge may be seen from Fig. 32to consist of two capsular springs, each actuating its own pointer. 110 LOCOMOTIVE APPLIANCES. PRESSURE RECORDING GAUGES. In order to have a graphic record showing everyvariation of pressure and the time of day or…
Locomotives
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