Kirkman, Marshall M. (Marshall Monroe), 1842-1921 · New York and Chicago, The World railway publishing company · leaf 117
108 LOCOMOTIVE APPLIANCES. 1 … 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
Locomotives
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