Lift Sail

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This drawing depicts the use of a sail where perpendicularly placed so that opposing wind provides the necessary thrust to move the vessel.


House of Representatives Report of the Commissioner of Patents for the Year 1860 (Washington, DC: George W. Bowman, 1861)


TIFF (full resolution)

1452×2400, 367.7 KiB

Large GIF

619×1024, 61.6 KiB

Medium GIF

387×640, 30.8 KiB

Small GIF

193×320, 10.3 KiB