. Electric railways; a treatise on the modern development of electric traction, including practical instruction in the latest approved methods of electric equipment and operation . f a S -Sxf Steel Place. ■^1 tf 1^ Fi^C. (>:). RfiufoiviiiL, Plates. cannot be employed to give rigidity to the long platform. This isusually given in cars of wood construction l)y reinforcing the plat-form timbers with steel plates as shown in the figure. In order thatthe dropping tendency of the j^latfonn shall not bow up the bodyof the car between the trucks this portion must be braced rigidly,ihe space below t
. Electric railways; a treatise on the modern development of electric traction, including practical instruction in the latest approved methods of electric equipment and operation . f a S -Sxf Steel Place. ■^1 tf 1^ Fi^C. (>:). RfiufoiviiiL, Plates. cannot be employed to give rigidity to the long platform. This isusually given in cars of wood construction l)y reinforcing the plat-form timbers with steel plates as shown in the figure. In order thatthe dropping tendency of the j^latfonn shall not bow up the bodyof the car between the trucks this portion must be braced rigidly,ihe space below the windows and above the side sill is iitili/.ed forthis The .side sill is moreover .strengthened 1)V having .steelplates bolted to it. The longitudinal members of the body framing are termedsills. These are iLsually of long leaf yellow ])ine. A arious com-binations of wood and .steel are employed for sills, an example ofwhich is .seen in Figs. (>1 and ()2. The sills are kept the ])roperdistance apart by bridgings or sills mortised into themat intervals and by end sills. The whole framing is tied togetherby the rods rumiing parallel to the V^ridging. tie rods areoften
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Keywords: ., bookauthoramericanschoolchicago, bookcentury1900, bookdecade1900
