. American engineer and railroad journal . liftsin the Green Island and Whitehall shops. As that used in the(Jrecn Island shops was the first one constructed, and as sev-eral improvements have been made in the one built later for ond leather backing, the whole being drawn up into positionby a follower plate 1 in. thick. As these cylinders are onlycalled upon to operate in one direction, the packing is turneddownward so that the second one tends to supplement the firstand catch any leakage which may pass through it. Thesetwo back cylinders are spaced 10 ft. from center to center,which is far en
. American engineer and railroad journal . liftsin the Green Island and Whitehall shops. As that used in the(Jrecn Island shops was the first one constructed, and as sev-eral improvements have been made in the one built later for ond leather backing, the whole being drawn up into positionby a follower plate 1 in. thick. As these cylinders are onlycalled upon to operate in one direction, the packing is turneddownward so that the second one tends to supplement the firstand catch any leakage which may pass through it. Thesetwo back cylinders are spaced 10 ft. from center to center,which is far enough apart to have their piston-rods clear theextreme outer ends of the bumpers or tail bars of any locomo-tive on the road. Tlic piston-rods are held in the pistons by means of a nutover which a key is driven in order lo prevent it from backingoff. The thread where the nut screws on is 2i in. in diameter, m - 1 li—t-J 1 1——1-LjJ 1 ! 1 - 1 1 pi—11 i L FOUNDATION FOR IIYDRAUHC LOCOMOTIVE LIFT. DELAWARE & HUDSON CAN.^L limit our description and illustrations the Wliiteliall shops, weto the Latter. Tlie general plan of the lift is that it consists of four invert-ed hy(lraulic cylinders so arranged that they can be shiftedanil brought into such a position that anj- locomotive on theroail cm l)e very readily and rapidl3 lifted from its foundation plan shows that there is a pit with stone sidewalls buncatli the track, and that on cither side there are four(■,)lumus of cast iron resting upon stone foundations located 12ft. apart from center to center, with a central distance acrossthe track of li! ft. These columns lo a lieight of 17 ft. 9iin and carry on their upper extremities two loin. I-beams, while the pLslon-rod is 2f in. This rod is 6 ft. 11 in. long fromthe shoulder at the bottom of the piston to the center of thepin of the hangers. Two bars of 3 in. X } in. iron are sus-pended from the piston-rod, and they in turn are fitted at thelower e
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
