Kirkman, Marshall M. (Marshall Monroe), 1842-1921 · New York and Chicago, The World railway publishing company · leaf 112
oldstyle diaphragm spring, as described in the intro-ductory remarks on gauges, has but one. Thus, theformer gives double the motion for the same move-ment of the spring. Inasmuch as the manufaet urersagree to replace anysteam gauge whichshows a crackedspring-head, it needscarcely be said thatgreat… … 104 LOCOMOTIVE APPLIANCES. mechanism. A bell crank bears against the top ofthe upper spring head. The pressure within thespring causes the heads to bulge and bear against thiscrank, which is joined by means of light lever con-nections with the pointer, thus indicating the pres-sure. THE DUPLEX AIR…
Locomotives
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