. Electric railway journal . the changes in busbar length. Thesejoints can be bolted into the bus stack and cause no re-duction in the conductance. Hopper and Conveyor FacilitateUnloading Cars of Ballast For unloading and piling ballast delivered in carsthe Pittsburgh Railways have a rig consisting of abucket running up an incline which leads from beneaththe unloading track to a hopper at the top of a frame-work made of telephone poles. The ballast is dumpedinto the hopper and distributed through steel chutes,not shown in the picture, which can be moved properlyto pile the ballast. The cars of
. Electric railway journal . the changes in busbar length. Thesejoints can be bolted into the bus stack and cause no re-duction in the conductance. Hopper and Conveyor FacilitateUnloading Cars of Ballast For unloading and piling ballast delivered in carsthe Pittsburgh Railways have a rig consisting of abucket running up an incline which leads from beneaththe unloading track to a hopper at the top of a frame-work made of telephone poles. The ballast is dumpedinto the hopper and distributed through steel chutes,not shown in the picture, which can be moved properlyto pile the ballast. The cars of ballast dump into a specially built steelhopper underneath the track, where there is a chutewhich feeds the elevator bucket. This is raised anddumped automatically by a motor-driven hoist. Themost difficult part of constructing this ballast-distribut-ing apparatus was the necessary excavation underneaththe track. This had to be large enough for both thesteel hopper and the bucket, and the track had to besupported over BALLAST-DISTRIBUTING RIG AT PITTSBURGH RAILWAYSSTORAGE YARD November 10, 1917] ELECTRIC RAILWAY JOURNAL 871 Cost Data on Special Work Renewals—VI By M. BERNARD Way & Structures Department,Y.) Rapid Transit System Assistant EngineerBrooklyn (N. This is the sixth plate of the series of Cost Data on Special Work previous plates were published in the issues for July 21, page 108 ; , page 279; Sept. 8, page 406; Sept. 29, page 588, and Oct. 27, page 781. Fig. 19—Single Truck Outer Connecting; Curve(30 Deg.) Length—300 ft. single trackConstruction removed—9-in. girder rail*—8-in. granite on construction—9-in. girder rail*—8-in. granite on concrete.
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