New_York,_Chicago_and_St._Louis_Railroad_train_crossing_Black_River_(1906).jpg
Summary
Description New York, Chicago and St. Louis Railroad train crossing Black River (1906).jpg |
English:
New York, Chicago and St. Louis Railroad train crossing Black River near Lorain, Ohio.
Identifier : railwaylocomotiv19newy Title : Railway and locomotive engineering : a practical journal of railway motive power and rolling stock Year : 1901 ( 1900s ) Authors : Subjects : Railroads Locomotives Publisher : New York : A. Sinclair Co Contributing Library : Carnegie Library of Pittsburgh Digitizing Sponsor : Lyrasis Members and Sloan Foundation
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Text Appearing After Image: HI.ACK RIVKK SWING URIUGE; trations show a passenger train cross-ing the river on this structure. We have called the movable part ofthe bridge a swing span instead of say-ing draw bridge, for the reason thatthe span, as its name implies, swingsabout a center and when open standsat right angles to the railway line andparallel to the stream. A draw bridge,strictly speaking, is a bridge which ishinged at one end and can be pulled upinto a vertical position. The typicaldraw bridge of old days was used tospan the moat about a castle and whenpulled up practically made the strong-hold into an island. The modern ap-plication of the draw bridge idea is tobe found in the roller lift or basculebridges, which are used on a good manyof our railways. The swing span of this bridge is athrough girder, which means that thetrusses are above the bridge floor andthe train runs through between them.The approach span of this bridge is adeck plate girder. This refers to thefact that the girder is below the
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Date | |
Source | Image from page 172 of "Railway and locomotive engineering : a practical journal of railway motive power and rolling stock" (1901) |
Author | Internet Archive Book Images |
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This image was originally posted to Flickr by Internet Archive Book Images at https://flickr.com/photos/126377022@N07/14572254650 ( archive ). It was reviewed on 21 April 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the No known copyright restrictions. |
21 April 2019