Minutes of Proceedings of the Institution of Civil Engineers Volume 34

Minutes of Proceedings of the Institution of Civil Engineers Volume 34

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1872 edition. Excerpt: ...light cast-iron body had no support whatever; and that, for about 12 inches in the rear of the trunnions, the cast iron had the whole work to do laterally. The wrought-iron band outside could not prevent the inner rings of the cast metal being stretched beyond the limits of its elasticity; and consequently the guns of large size, fired as they were with very severe charges, proved an utter failure. However, out of some thousands of rifled east-iron guns, strengthened and unstrengthened, only three of less size than 100-pounders failed. One 30-pounder Parrott gun blew its muzzle offi' at the 401st round; another 30-pounder blew the breech out at the 2,900th round; and the other burst at Morris Island, as it was being fired the 4,606th round, when it was bombarding Charleston at a range of over 7,000 yards.1 1 Vide Appendix, Note 1, Oflicial Report on Mr. Bashley Britten's rifled castiron guns. Cast-iron ordnance has had a great trial in America over many a bloody field, and not on the practice-ground, where the men get under cover; and the soldiers and sailors who have risked their lives in using such guns are content to go on doing so. In the Prussian service the old 24-pounder cast-iron guns (74 inches long) have been converted into rifled breechloaders without being strengthened, and were employed in the late war as siege guns. At Paris, two batteries of six guns each, fired nearly 4000 rounds, and gave perfect satisfaction. Lead-coated shot of 65 lbs., and shells of 55 lbs., were used. The weight of each gun was 27 cwt., just over half the weight of the English 32-pounder, the thickness of metal round the charge is 5 inches, and at the muzzle about 2; inches. With regard to English cast-iron guns, it was stated in a Report...show more

Product details

  • Paperback | 162 pages
  • 189 x 246 x 9mm | 299g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236791754
  • 9781236791757