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Scientific American, Vol. 29, No. 6 (August 1873) (1873)
leaf 7
g dies without moving the bolt blank from the posi- passes through the curved slots, and as it acts back and forth engers. Smoke and gases and fine dust also disappear rap- tion in which it is first held, and that the forging dies should moves them in opposite directions. The side dies have their… … street, Louisville, Ky, ABBE'S PATENT BOLT FORGING MACHINE desired ornamental form. © 1873 SCIENTIFIC AMERICAN, INCPatents · Improved · Consists · Bolt · Scientific American · Water · Absolute temperature · Swing bar · Cubic foot · Rotary blower · Lower side · Cubic feet · Horse power · Latent heat · Steam engine
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