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Adrodd fel Amhriodol

Testun Gwreiddiol (Anodiad: SAW032183 / 1454311)

' Harbour rail swing bridge. The Harbour Swing Bridge is powered by a Bruce Peebles 440 Volts 50 Hz 3 Phase 8 pole 750 RPM induction motor through a gear train. There is trapdoor between the rail tracks which can be lifted by a mobile crane, although it is possible to remove it through a side door in the body of the bridge. '

Dywedwch wrthym pam mae’r cynnwys hwn yn amhriodol *(gofynnol)

Dewis categori *(gofynnol)

Os ‘Arall’ rhowch fanylion (dewisol)

Eich enw (dewisol)

Eich cyfeiriad e-bost (dewisol)

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