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Abraham Lincoln's patent relates to an invention to buoy and lift boats over shoals and obstructions in a river. Abraham Lincoln conceived the invention when on two occasions the boat on which he traveled got hung up on obstructions. Lincoln's device was composed of large bellows attached to the sides of a boat that were expandable due to air ...
Geheyan dam boat lift, also in Hubei Province, capable of lifting vessels of 300 tons displacement. The dam was completed in 1994, but technical difficulties delayed the opening of the ship lift for four more years. Longtan dam boat lift, capacity to lift vessels of 250 tons, in a basin 40×10.8×1.8 meters, and a vertical lift of 68.5 meters. [2]
In 1923, the original railway at Big Chute was replaced, as the size and number of boats had increased, with the second carriage being able to carry boats up to 60 feet (18.29 m) long. The 1923 carriage was used up until around 2003, on days of extremely heavy traffic, or as a backup for the new carriage.
A boat lift, ship lift, or lift lock is a machine for transporting boats between water at two different elevations, and is an alternative to the canal lock. It may be vertically moving, like the Anderton boat lift in England , rotational, like the Falkirk Wheel in Scotland , or operate on an inclined plane , like the Ronquières inclined plane ...
Early pontoon bridges during the Civil War were heavy and awkward, and required special long-geared pontoon carriers to transport them to the site of the planned river crossing. There were two main types—the French-designed wooden bateau (known in the army as a "Cincinnati pontoon") and the Russian pontoon, a canvas boat. Both types were ...
These semi-submersible crane vessels (SSCV) consist of two lower hulls (pontoons), three columns on each pontoon and an upper hull. Shortly after J. Ray McDermott and Saipem also introduced SSCVs, resulting in two new enormous vessels DB-102 (now Thialf ) and Saipem 7000 , capable of lifting respectively 14,200 and 14,000 tons.