Bowstring Girder Bridge, Binghamton, New York, United States, c 1870.
2 8 c m
40cm
actual image size: 32cm x 20cm

Bowstring Girder Bridge, Binghamton, New York, United States, c 1870.

Gies & Co

© Science Museum / Science & Society Picture Library

Description

Chromolithograph advertisement produced by the Berlin Iron Bridge Company of Connecticut, with artwork by Gies & Co. An engine drawn by six horses is crosing this lenticular bridge, with a steamboat with pasengers pasing beneath the bridge. The steamboat is flying the American flag. Lenticular bridges, so named because of the lens shape, used a parabolic trus to transfer weight from the centre out to the ends. This design was developed by William O Douglas of Binghamton, New York. Douglas' Berlin Iron Bridge Company constructed many such bridges which were cheaper than conventional truses as they used les steel. Dimensions: 380mm X 610mm.
 

Artist

 

Image Ref.

10240923
 

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