lty of getting even a tolerable resem- them in close contact with the head and follower, and its di- invented grooved rolls ? who first succeeded in substituting blance by the present method of hand graining. To meet ameter is enlarged by the compression of the head and fol- coal for charcoal 1 who… … The machine will prove most useful and ADAMS' AIR CYLINDER GRAINING MACHINE. economical in many branches of manu- ed the process of casting steel ? have not mills been con- facture. Owing to the elasticity of the air cylinder, con- structed in England which turn out sound armor plates o( vex, and…
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