Kirkman, Marshall M. (Marshall Monroe), 1842-1921 · New York and Chicago, The World railway publishing company · leaf 59
tly twice that of the steam cylinder acl uating it. Both air cylinders are filled with free air atevery stroke. The first operation is to force the airfrom the largest cylinder into the smaller one inaddition to the free air already in the smaller cylinder.The smaller cylinder then contains three… … r!.E::-L«>—» FIG. 1. New York Air Brake Co.s Duplex Air Pump. LOCOMOTIVE APPLIANCES. 51 the two seven-inch steam pistons are caused to actuatethe equivalent of three seven-inch air pistons (thearea of a ten-inch piston being exactly double that of aseven-inch), or, in other words, two measures…
Locomotives
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