The rollers on which the Swing Bridge over the river Tyne are supported, Newcastle north east England UK
Construction of the The Swing Bridge began in 1873 and it was completed in 1876. It was designed and built by Sir Armstrong and Co. Ltd. The bridge rotates on a turntable rather like a gun turret, and is driven by hydraulic machinery powered by large water filled accumulators within caissons sunk below the river. All of the machinery was duplicated, so that a failure of one element would not prevent operation. Originally the accumulators were pressurized by steam engines, but in 1959 the engines and pumps were replaced by electrically driven pumps. Otherwise the machinery is as built. This photo, taken in the east engine room, shows the large rollers on which the turret revolves. The turntable is driven by a gear wheel meshing with the gear teeth at the top of the image. This is one of a series of photos comprising DE9DNR DE9DND DE9DNF DE9DNJ DE9DN9
Size: 4607px × 2929px
Location: Swing Bridge, Newcastle upon Tyne, England, UK
Photo credit: © Washington Imaging / Alamy / Afripics
License: Licensed
Model Released: No
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