. Building and repairing railways ... : Forming one of the series of the volumes comprised in the Revised and enlarged edition of The science of railways, . Fig. 377. STEEL SOCKET BRIDGE tightening nuts on large bolts. There are also required several tool chests ofcarpenter tools for use when building or repairingdepots. Tt is not necessary to provide each gangwith all of the above mentioned tools; while theyare necessary some of them will be used onlyoccasionally, and they can be left in charge ofthe division storekeeper to be issued for use asoccasion requires. The number of each
. Building and repairing railways ... : Forming one of the series of the volumes comprised in the Revised and enlarged edition of The science of railways, . Fig. 377. STEEL SOCKET BRIDGE tightening nuts on large bolts. There are also required several tool chests ofcarpenter tools for use when building or repairingdepots. Tt is not necessary to provide each gangwith all of the above mentioned tools; while theyare necessary some of them will be used onlyoccasionally, and they can be left in charge ofthe division storekeeper to be issued for use asoccasion requires. The number of each kind of tool requiredvaries with the size of the gang and the char- MAINTENANCE OF BRIDGES AND BUILDINGS. 527. (pa ^^ fc^ :sm ^h IDaa Fig. 378. WHEEL WRENCH. Used to tighten nuts on rods wliicli pass through a number of pieces oftimber as caissons or cofferdams. acter of the repairs or new work which is beingdone. The aim should be to issue only such asare needed and keep the others in the divisionstorehouse where they can be issued as required. The length of time timber lasts in bridges inthe United States was given by a committeewhich reported to the Association of RailwaySuperintendents of Bridges and Buildings at theirannual meeting in 1899, and is given in Appen-dix L. 528 BUILDING AND REPAIRING RAILWAYS. It is the custom of some engineers on new con-structions to place the ends of stringers of thefirst and last bents of a pile or trestle bridge onmud sills. After the embankment is thoroughlysettled, piling is driven in the embankment anda cap put on these piles the same as for otherbents in the bridge, and the stringers are placedon these caps. This is the first repair work gen-erally re
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1906
