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Scientific American, Vol. 43, No. 26 (1880) (1880)

leaf 3

An illustration from Scientific American, Vol. 43, No. 26 (1880), 1880, leaf 3
= These drills are regularly rated, as to size, from No. 0, oa: BE Be oo 4 PE. ee Oe: Bag: York State, they have in many cases furnished the entire which weighs 150 lb., and bores holes from 14 inch to 1 SB Sas eA: Shee working machinery, and in all the different classes of min- Les. Bo: Bs: #..… … oa o o | the economy of their operation, the machines have recom- mended themselves to practical men everywhere. all ordinary classes of boring, from the lightest plug and = 2 8 potte @ The New York officeand salesroom of the company is at feather work.to the heaviest bores required in deep cuts,…

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