Congressional Edition Volume 4449

Congressional Edition Volume 4449

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1902 edition. Excerpt: ...and then sand weighted to 15 pounds. The shrapnel used in the tests were made by the Ordnance Department. The powder charge (B. N. smokeless) was placed loose in the cartridge case. EHRHAEDT. Photographs 16 to 20, inclusive.! 32. The gun is made of nickel steel and consists of a tube over which is shrunk a jacket, secured longitudinally by means of a locking ring screwed to both parts. Over the tube are also shrunk two stout collars provided with clips, which hold the gun to and guide it on the sides of the cradle during recoil. The front collar reaches down into the cradle to take the front end of the hydraulic cylinder. The rear end of the jacket forming the breech recess is screw threaded. 33. The breech mechanism (photograph 16) is of the "Nordenfelt" or eccentric screw type. The block is cylindrical, of a diameter about double that of the base of the cartridge case, and is screw threaded. An opening for loading is cut through from front to rear and to one side of the axis of the block. It is screwed into the breech recess and fits in such a way that, when in the loading position, the cut away portion leaves the chamber clear for the introduction of the cartridge, and when revolved about its axis about 180 degrees to the firing position the solid part of the block closes the chamber. The solid part of the block is bored out axially to receive the firing pin. The operating lever is attached to the breech face of the block by a bayonet joint. A continuous-pull firing mechanism is assembled with the operating lever. Cocking and firing is executed by pulling to the rear on a firing lanyard or by actuating the firing lever. The latter is attached to the left side of the cradle and is convenient for use by the gun layer. The more

Product details

  • Paperback | 112 pages
  • 189 x 246 x 6mm | 213g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236520335
  • 9781236520333