Mor Temor
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2.12 J. C. Williams Floating Bridge
John C. Williams, a citizen of the United States, have invented in 1902 new and useful improvements in bridges. This invention relates to bridges particularly adapted to be arranged across wide streams – such as rivers, creeks, and the like – wherein a sudden variation in high – water marks is liable to occur from tides and freshets.
The aim and purpose of the present improvement is to provide means for compensating for variations in water-levels in rivers or creeks above a normal high-water mark through the medium of adjusting devices simultaneously operative from a single controlling-point to uniformly elevate the bed or roadway of the bridge in relation to the supporting means therefore and the water-level.
A further object of the invention is to provide a bridge having intermediate pontoon-supports to adapt the construction of a bridge over a considerable water expanse without the use of the usual stationary piers or other common suspending means.
A further object of the invention is to provide a bridge structure embodying pontoon-supports arranged at intervals and between which and the bed or roadway of the bridge adjusting devices are interposed and operative to elevate the bed or roadway of the bridge in relation to the pontoons.
In the drawings, Fig. 23 is a side elevation of a bridge embodying the features of the invention. Fig. 24 is a top plan view of the same (John, 1902).
Fig. 23-24 Side elevation and top plan view of the invented bridge.
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