. American engineer and railroad journal . 4 in-in diameter at the top and 8J/2 in. at the bottom. A startingvalve arrangement is included consisting of a small valve securedto the stem which seats in the center of the main valve when thethrottle is closed. The main throttle is not fastened to the stembut is lifted by a lug or boss which comes in contact with thebottom of the main valve. Before this occurs, however, thesmall starting valve is lifted J4 in. and gives an admission throughfour J4 in. ports in the body of the main valve. These serve tofill the steam pipes, superheater, etc., and t
. American engineer and railroad journal . 4 in-in diameter at the top and 8J/2 in. at the bottom. A startingvalve arrangement is included consisting of a small valve securedto the stem which seats in the center of the main valve when thethrottle is closed. The main throttle is not fastened to the stembut is lifted by a lug or boss which comes in contact with thebottom of the main valve. Before this occurs, however, thesmall starting valve is lifted J4 in. and gives an admission throughfour J4 in. ports in the body of the main valve. These serve tofill the steam pipes, superheater, etc., and to some extent equalize. Section at A A
Size: 1957px × 1277px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
