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Scientific American, Vol. 70, No. 14 (April 1894) (1894)

leaf 7

An illustration from Scientific American, Vol. 70, No. 14 (April 1894), 1894, leaf 7
pipe tongs or any lake in the big Mechanics' Pavilion, with nearly 10,000 with lead to make it watertight. of the usual appliances for such work, picked up a squane feet of polished surface, is visited daily by hun- " In the placing of the pipes lies the principal secret. wrench and a piece of a… … will succeed. But if cheap materials spread over the ice to fill up the cuts. SUBSTITUTE FOR PIPE TONGS. are used and the work badly done, In this manner we have a perfectly you will be sure to fail. A drain put around the out- ing. The sheet of ice is five inches in thickness, 160 smooth surface…

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