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Scientific American, Vol. 32, No. 24 (June 1875) (1875)
leaf 7
e, and so prevent the fall of taken at will. the platform in event of the breakage of the hoisting, is here IMPBOVED BILL FILE. Penlkese School. done away with. The safety mechanism substituted is much The device herewith illustrated is designed to hold firmly. It is certainly a misfortune that the… … © 1875 SCIENTIFIC AMERICAN, INCPatents · Improved · Asks · Iron · Water · Boiler · Second hand · Horse power · Upper carrier · Sewing machine · Particulars address · Trade catalogs · Linseed oil · Postage included · Steam boiler · Union iron
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