Drawbar Rollers

Drawbar and rollers on a cantilever or bascule lifting bridge built in 1919 by The New York Central Railroad to span the Erie Canal between Tonawanda and North Tonawanda, NY.
When it was completed it was lifted for testing and never lifted again.
By the time this bridge was built the railroads had taken over most of the freight transport making large cargo ships that required lifting bridges unnecessary on the Erie Canal.