Kirkman, Marshall M. (Marshall Monroe), 1842-1921 · New York and Chicago, The World railway publishing company · leaf 381
ind it with a temporary holder screwedinto it. (371) 372 LOCOMOTIVE APPLIANCES, THE CROSBY SPRING SEAT VALVE. This valve is shown in Fig. 2, which repre-sents the valve with a section of the body removedin order to show its internal design. A is theupper disc, in which a a represents the seat… … Fig. 2.Crosby Spring-Seat Valve. groove. These seats have greater contact surface,and by means of the central grooves have greaterresilient action, which permits them to shut tight andremain so. This novel characteristic prevents themfrom jamming when the valve is closed, and leavesthem free to…
Locomotives
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