The Maritime History of the Great Lakes
Detroit Free Press (Detroit, MI), June 17, 1868

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NEW STYLE OF PROPELLER. - The Toledo Blade, commenting upon a new improvement which, it is claimed, will revolutionize the system of propulsion by steam, was in error in part of its description. The inventor's plan is four iron air-tight cylinders, cone-shaped at the ends, which run the entire length of the boat. Outside these cylinders, and running parallel with them are shafts, on which are adjusted continuous screw threads, answering for buckets. The cylinders being hollow, their location below the water will assist in buoying the vessel. It is claimed that a light force of steam will revolve the shafts 700 times a minute and will propel a vessel at the rate of 35 miles an hour.

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June 17, 1868
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Dave Swayze
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Public domain: Copyright has expired according to the applicable Canadian or American laws. No restrictions on use.
Maritime History of the Great Lakes
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Detroit Free Press (Detroit, MI), June 17, 1868