. The 20th century toolsmith and steelworker; a complete, practical, and scientific book. llustrgting how jaws are bent to shape. K^ v^ TOOLSMITH AND STEELWORKER 41 forged or welded on, but will prove most satisfactoryif forged in one piece. Figure 6 illustrates double levered and adjustabletongs invented by thecelebrated steel worker,Prof. W. S. Casterlin,Pittston, Pennsylvania,U. S. A. These tongshave been improved bythe author and are verypowerful and light. Theyare especially designedfor grasping tools of abeveled nature, such asmill picks, axes, etc., andwill hold flat material

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. The 20th century toolsmith and steelworker; a complete, practical, and scientific book. llustrgting how jaws are bent to shape. K^ v^ TOOLSMITH AND STEELWORKER 41 forged or welded on, but will prove most satisfactoryif forged in one piece. Figure 6 illustrates double levered and adjustabletongs invented by thecelebrated steel worker,Prof. W. S. Casterlin,Pittston, Pennsylvania,U. S. A. These tongshave been improved bythe author and are verypowerful and light. Theyare especially designedfor grasping tools of abeveled nature, such asmill picks, axes, etc., andwill hold flat material ofany width, ranging inthickness from 1-16 to1% inches. The jaws ofthese tongs are copperlined, which preventsslipping. Fullers ajid Swages. These tools are invalu-able to the blacksmith inshaping and forgingmany classes of work,especially and swages takein a wide range of differ-ent sizes, from % to 2inches for ordinary use,

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