Kirkman, Marshall M. (Marshall Monroe), 1842-1921 · New York and Chicago, The World railway publishing company · leaf 98
e> a 6<xcje \ Fig. A.Mercury Column and Gauge. LOCOMOTIVE APPLIANCES. 89 base and running high in the air (see Fig. 1). Thepressure from the test pump is applied to the surface of … Fig. i.Electro-Mercurial Gauge Test< the mercury and causes the latter to rise in the tube toa height proportionate to the pressure applied. At 90 LOCOMOTIVE APPLIANCES. each point of graduation on the tube, an insulatedplatinum wire point is inserted and connected with anelectrical register. By…
Locomotives
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