. The locomotive engineer . past the point of ibe spike, and shearing the pointoff instead of rolling it. The writer stood by one of these machines notlong since, and saw it turning out spikes withpoints sharp enough to cut tlie fingers if bandiedcarelessly. Another ingenious device of the same inventor ishere used for punching keyways in bolls whilebting headed. Hu puts keyways into all sizes ofbolts from half inch up. He uses a lever ou top ofIhe machine, much the same as in the spikemachine. Fig. 3. showinE the general arrangement,the boll being held in ihe side clamp firmly whileIhe head i
. The locomotive engineer . past the point of ibe spike, and shearing the pointoff instead of rolling it. The writer stood by one of these machines notlong since, and saw it turning out spikes withpoints sharp enough to cut tlie fingers if bandiedcarelessly. Another ingenious device of the same inventor ishere used for punching keyways in bolls whilebting headed. Hu puts keyways into all sizes ofbolts from half inch up. He uses a lever ou top ofIhe machine, much the same as in the spikemachine. Fig. 3. showinE the general arrangement,the boll being held in ihe side clamp firmly whileIhe head is being formed. The lever is so arrangedas to punch the keyway at the same time. Themost ingenious part of the machine is Ihe punchholder, shown in Fig. 4. This holder is large andstrong, for attachment to the standard, but will holda very delicate punch. These are simply .strips oftool steel, of the proper size, ground across theend ouly. They are cheap, require no forging, anda broken one can be replaced in a few
Size: 2063px × 1211px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectrailroa, bookyear1888
