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Scientific American, Vol. 26, No. 13 (1872) (1872)

leaf 7

An illustration from Scientific American, Vol. 26, No. 13 (1872), 1872, leaf 7
servation have been brought about by the fusion of lead KETCHUM’S PITMAN CONNECTION. pipes in the line of discharge. I have, therefore, recom- Our engraving exhibits a mcthod of constructing connec- mended that in all cases where lightning conductors are at- tions of pitmans, for harvesters or… … cork, H, having two glass tubes passed through it, the upper form to correspond with the section of the uptake made at . the-same angle. While the smoke and gases of combustion jar consequent upon loose connections, ai.d also affords ease the dropping of the copper salt, pass freely through it, it…

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