AMERICAN INDUSTRIES SINCE COLUMBUS. 315 



V. This consisted of two horizontal shafts, placed in the same 

 vertical plane with the axes of the rolls D C, and coupled to them 

 by spindles y Y', and coupling boxes u u' and V V. On these 

 shafts were fixed disks of steel, called " cutters," of a thickness 

 equal to the width of the bar or rod desired ; the edges of the 



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" cutters " on each shaft entered closely between those . on the 

 other, thus acting with reference to each other like the blades of 

 rotary shears, which in fact they were ; and, if the end of a flat 

 bar of hot iron was thrust against the approaching edges of the 

 rotary cutters, it would be immediately drawn between them, 



