Kirkman, Marshall Monroe, 1842-1921 · New York, Chicago, The World Railway Publishing Company · leaf 200
192 LOCOMOTIVE APPLIANCES. at extreme travel of valve, then double balance is used. If the yoke fit (or box) of valve is large enough, two cones are cast on the valve, as shown in Fig. 3, but if the yoke fit is not large enough to cast cones on, then two discs are used. If the distance across the… … Fig. 3. Double Cone American Balance Valve. thereby drawing the discs one-fourth inch closer together; and if more clearance is necessary, the rims may also be cut one-eighth inch at ends of valve, giving one-fourth inch more or a total of one-half inch. But in no case shall the rims be cut more…
Railroads · Transportation
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
