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" 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 .... - Page 112
by United States. War Department - 1875
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Treatise on the Construction and Manufacture of Ordnance in the British ...

Great Britain. War Office - Ordnance - 1877 - 454 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...
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Abridged Treatise on the construction and manufacture of ordnance in the ...

Great Britain. War Office - Great Britain - 1877 - 328 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...
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House Documents, Otherwise Publ. as Executive Documents: 13th ..., Volume 6

United States. Congress. House - United States - 1881
...«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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