Kirkman, Marshall M. (Marshall Monroe), 1842-1921 · New York and Chicago, The World railway publishing company · leaf 448
elatter. LOCOMOTIVE APPLIANCES. 439 The rapid moving jack shown in Fig. 3 is so calledbecause, when the load is off, it can be raised immedi-ately to any desired point, and when up can be asquickly let down, thus saving the tedious operation ofturning the screw up and down without load. Thetwo…
Locomotives
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