Patent Model - Improved Canal-Boat Propeller
Maker and role
Ovid Plumb, Patentee
Sep 23 1862
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6 x 12 x 4 3/4" (15.2 x 30.5 x 12.1cm)
Plumb's patent describes his improvement as the following: "In the ordinary construction of most canal-propellers heretofore, the paddle-wheel or propeller has been placed in the rear of the boat, so that it could be driven only in one direction. Thus, in addition to the disadvantage of having to turn the boat around to go in the opposite direction, the paddle-wheel is not adapted to equal action as the boat is loaded heavier or lighter. A paddle-wheel locate in the center of the boat posses many obvious advantages, and my improvements are intended to render such more effective in use and operation." (Patent Number 36,526)
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