Kirkman, Marshall M. (Marshall Monroe), 1842-1921 · New York and Chicago, The World railway publishing company · leaf 101
. Bourdon tube gauge, which is shown in Fig. 3. Thiswas found to be more satisfactory and free from thetwo former prime objections to the Bourdon tube.The principle of this double Bourdon tube is thesame as of the single tube style, and this principle4can readily be understood by noticing the… … Fig. 4. Early Form of Diaphragm Gauge. forms of this gauge is shownin Fig. 4, having the dia-phragm located in a compart-ment below the gauge. Theobjection to this gauge, asoriginally designed, was inthe use of the flat diaphragmfastened rigidly at the circum-ference. It was impossible tomake…
Locomotives
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