It is then raised vertically again and a punch or mandrel rather over half the length and a little larger than the interior diameter of the coil, is hammered down its own length ; the coil is next placed on its side and hammered round, that half of its... Annual Reports of the War Department - Page 112by United States. War Department - 1875Full view - About this book
| Great Britain. War Office - Ordnance - 1877 - 514 pages
...receives a Process of few smart blows to weld the folds, it is then thrown on its side and welding a coil, being gradually turned, is hammered (or patted) all round to straighten it. It is then raised vertical again, and a punch or mandrel — rather over half the length, and a little larger than the... | |
| Great Britain. War Office - Great Britain - 1877 - 382 pages
...receives a Process of few smart blows to weld the folds, it is then thrown on its side and welding. being gradually turned, is hammered (or patted) all round to straighten it. It is t lien raised vertical again, and a punch or mandrel — rather over half the length, and a little... | |
| United States. Congress. House - United States - 1881 - 906 pages
...«team-hammer aud receives u few smart blows to weld the folds. It is then •lirciwn mi its siile, anil being gradually turned, is hammered (or patted) all round to straighten it. It i» then raised vertical again, and a punch or mandrel — rather over half the length of the coil... | |
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