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Scientific American, Vol. 45, No. 3 (July 1881) (1881)
leaf 7
teamers have lately first pawl can act upon it, when the same is moved by the first behind them, so that they are projected and engage the ratch- been entertained by the sight of gangsof workmen swarming magnet in turning on the gas and lighting it. When the gas ets. The rims of the wheels, I, are… … Buttonwood street, Reading, Pa. retain their foothold in every place, and at SPEIDELS HOISTING APPARATUS, ©1881 SCIENTIFIC AMERICIAN, INCPatents · Iron · Boiler · Sulphur · Inventors · Water · Scientific American · Niter · Trade catalogs · Mixed milk · Mealed powder · Cold water · Cast Iron · Sulphuric acid · Niagara suspension · Patent office · Suspension bridge
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