Kirkman, Marshall M. (Marshall Monroe), 1842-1921 · New York and Chicago, The World railway publishing company · leaf 450
he others in no essential feature;hence it will suffice to illustrate but one or two designs. The principle upon which the hydraulic jack worksis that of a pump. The lowering is done by a movement of the handle reversed, or, as in the case of thejack shown in Fig. 6, by a thumb screw, the… … Fig. 5.Joyce Geared Loco-motive Jack. 442 LOCOMOTIVE APPLIANCES.
Locomotives
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