rs are drawn back radially, they are forced to release the eyelet, which then slides down the spindle on to the die, K, where it is riveted by the force of the blow. At the same time a new hole is punched in the leather by the punch corres-ponding to the female die, J ; a guide bar, L, serving to… … means of a wedged-shaped step-block, B. This plate carriesa tool holder, C, by which the adjustment of the scraper, D,is effected, and by which toe latter is firmly held when dress-ing the stone. Parallel motion is given to the tool-holder by means of aslot in the plate, A, in which a guide slides.…
Patents · Manufacture · Machine · Iron · Wrought iron · Center · Slaughter house · Second floor · Scientific American · Patent office · Power required · Wire rope · Steam man · Supporting power · Cambium layer
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