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Home > Society and Social Sciences > Warfare and defence > Weapons and equipment > Report of Experiments on Gunpowder, Made at Washington Arsenal, in 1843 and 1844
Report of Experiments on Gunpowder, Made at Washington Arsenal, in 1843 and 1844

Report of Experiments on Gunpowder, Made at Washington Arsenal, in 1843 and 1844


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About the Book

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. 1845 Excerpt: ...ball, in the French arrangement of the pendulum, and the further inconvenience resulting from the fragments of lead which must be driven off against the sides of the pendulum block and against the face plate, I made some comparative trials of these leaden cores and of the wooden and sand cores before employed. In order to increase the resistance of the cores of oak wood, they were turned across the grain; other cores of cypress wood, very light and dry, were also tried. The dies for making the balls by compression having been well adjusted, a large number of balls have been prepared, of the diam. of 0.64 in.; mean weight 397.5 grs. These balls will be used in the future experiments, when not otherwise mentioned. The following is a tabular view of the mean results of the experiments in which cartridge paper wads were used: From this table, it appears that the indications of the ballistic pendulum are not sensibly affected by the kind of core used for the pendulum block, since the velocities of the ball, by that pendulum, follow very nearly the same order with the corresponding recoils of the musket pendulum; thus showing that the cause of variation is in the force with which the ball is propelled. The cypress core affords too little resistance to the ball, which passes through it with such force as to indent the iron plate behind it.. The oak core, turned across the grain of the wood, causes a deviation in the course of the ball after it enters the pendulum block. As the wooden cores are the neatest and most convenient for use, it was determined to adopt that arrangement in the future experiments, and the pendulums were finally adjusted in the manner pointed out in the general description of them; the cores being turned out of seasoned hickory, and placed wi...


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Product Details
  • ISBN-13: 9781236303073
  • Publisher: Rarebooksclub.com
  • Publisher Imprint: Rarebooksclub.com
  • Height: 246 mm
  • No of Pages: 52
  • Spine Width: 3 mm
  • Width: 189 mm
  • ISBN-10: 1236303075
  • Publisher Date: 01 May 2012
  • Binding: Paperback
  • Language: English
  • Returnable: N
  • Weight: 109 gr


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