Small Screw Propellers.
“ The small size of the screw,” savs a writer in an American paper, “ is not due to the perception of an invention of its greater effect as compared to a larger one, but purely to accident. When I first engaged in the machinery business, screws for steamers were made as large as possible, it being the theory that the greater the diameter the higher the T.® d ’ Vessel was Placed on Lake Lrie with a screw so large that it was deemed best to cut each blade in two parts, and then weld them together. During a srorm all these blades of propeller broke at the weldmg, reducing the diameter by more than two thirds. I o the surprise of the captain tbe vessel shot forward at a speed such as bad never been attained before. Engineers then experimented with small propellers, and discovered that they were much more effective than large ones.” Salt applied with a solt cloth removes stains from silver spoons.
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Kaikoura Star, Volume XII, Issue 22, 18 March 1892, Page 2
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167Small Screw Propellers. Kaikoura Star, Volume XII, Issue 22, 18 March 1892, Page 2
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