. The 20th century toolsmith and steel worker; a complete, practical, and scientific book, written by a thorough expert mechanic and steelworker, especially in the interests of blacksmiths, toolsmiths, toolmakers, and all mechanics connected directly on indirectly with the use, repair, and manufacture of steel into tools . he toughness and tenacity from the steel (that wasput in the steel when hammering at a low heat) andthe chisel or the teeth will break very easy when in TOOLSMITH AND STEELWORKER 143 use, but when straightening after being punched heatthe chisel to a low heat. Harden the pun
. The 20th century toolsmith and steel worker; a complete, practical, and scientific book, written by a thorough expert mechanic and steelworker, especially in the interests of blacksmiths, toolsmiths, toolmakers, and all mechanics connected directly on indirectly with the use, repair, and manufacture of steel into tools . he toughness and tenacity from the steel (that wasput in the steel when hammering at a low heat) andthe chisel or the teeth will break very easy when in TOOLSMITH AND STEELWORKER 143 use, but when straightening after being punched heatthe chisel to a low heat. Harden the punch as any ordinary flat tool and drawthe temper to a dark blue. To harden the die heatthe whole tool evenly enough to harden, then cool offentirely, afterwards drawing the temper over the fireor on a piece of heated flat iron. Draw the temperto a dark straw. Lathe and Planer Tools for Gutting* Soft Stone. In large and up-to-date stone yards, a great amountof stonecutting is done by machinery, and which bringsinto use stone lathe and planer tools. There are agreat many tools of this description used, and almostevery one is of a different shape, varying accordingto the work that is to be done. Some of these toolsare made from heavy steel, as finishing tools shown inFig. 80, which are made from 1 by 4-inch flat steel,. Fig. 80. Finishing tool for stone planer. 144 THE TWENTIETH CENTURA: while the cutting edge is about 6 inches wide. Tomake a finishing tool as illustrated, the steel will haveto be upset, then drawn or flattened out until it is theproper size. Heat to a good yellow heat when cutting edge is drawn down on a bevel principallyfrom one side, as illustrated by a in figure, leavingthe other side, b, perfectly flat. After the cuttingedge is drawn out (as just mentioned), then ham-mered at a low heat to refine the steel, the cutting edgeat c should be bent up a little from the flat side,which will enable the tool to be cut much tools illustrated
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Keywords: ., bookcentury1900, bookdecade1900, bookpublisherc, booksubjectsteel
