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Scientific American, Vol. 7, No. 1 (July 1862) (1862)

leaf 8

An illustration from Scientific American, Vol. 7, No. 1 (July 1862), 1862, leaf 8
NDEKBILT'S POLISHING BELT. subject to rapid corrosion. Such is the theory of the known manufacturer of pianofortes, of this city, has action of tallow used as a lubricant in steam engines. The annexed engraving represents a polishing belt recently invented a modification in the plate of pianos As a… … value of the product. The consequence is, no more simply by their tension. formed by inserting plugs of emery in a leather in cotton is planted than will suffice for seed for an en- As the combined strain of so many strings amounts the manner represented. The holes are cut in coni- suing crop; but…

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