A Treatise on Ordnance and Armor: Embracing Descriptions, Discussions, and Professional Opinions Concerning the Material, Fabrication, Requirements, Capabilities, and Endurance of European and American Guns for Naval, Sea-coast, and Iron-clad Warfare, and Their Rifling, Projectiles and Breech-loading. Also, Results of Experiments Against Armor, from Official Records. With an Appendix, Referring to Gun-cotton, Hooped Guns, Etc., Etc

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D. Van Mostrand, 1865 - 900 páginas
 

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Página 895 - A Course of Instruction in the Elements of the Art and Science of War, for the Use of the Cadets of the United States Military Academy, West Point, NY 12mo, cloth $1 .75 Field Fortifications.
Página 852 - ... and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same : reference being had to the annexed drawings, making a part of this specification, in.
Página 886 - Railway Practice American and European Railway Practice in the economical Generation of Steam, including the Materials and Construction of Coal-burning Boilers, Combustion, the Variable Blast...
Página 815 - To get useful work out of a gun-cotton rifle, the shot must on no account be rammed down, but simply transferred to its place. Air left in a gunpowder barrel is often supposed to burst the gun ; in a gun-cotton barrel, it only mitigates the effect of the charge. The object of enclosing the gun-cotton charge in a hard strong pasteboard cartridge, is to keep the cotton from compression and give it room to do its work. It is a fourth discovery of General Lenk, that to enable gun-cotton to perform its...
Página 499 - I shall therefore close this paper with predicting, that whatever State shall thoroughly comprehend the nature and advantages of rifled barrel pieces, and, having facilitated and completed their construction, shall introduce into their armies their general use with a dexterity in the management of them ; they will by this means acquire a superiority, which will almost equal...
Página 841 - But wrought iron and all malleable bodies are capable of being extended without fracture much beyond their power of elasticity. They may, therefore, be greatly elongated without being weakened. Hence we have only to form the hoops small in excess, and they will accommodate themselves under the strain without the least injury.
Página 773 - ... them in stiff cylinders of pasteboard, which form the cartridges. (In this shape its combustion in the open air takes place at a speed of 10 feet per second...
Página 815 - Why a straight cotton thread should burn with a slow creeping motion when laid out straight, and with a rapid one when wound round in a cord, and again much faster when closed in from the air, is far from obvious at first sight ; but the facts being so, deserve mature consideration. The cartridge of a common rifle in...
Página 235 - The cast iron did not return to its original dimensions, but the smallest diameter was about one inch above the water-line. Tin showed no change of form, there being apparently no intermediate state between the melting-point and absolute solidity. Brass, gun-metal, and zinc showed the effect slightly ; but instead of a contraction just above the water-line, there was an expansion or bulging.
Página 840 - TO^th part of their diameters, less upon their insides than the parts that they enclose. They are then expanded by heat, and, being turned on to their places, suffered to cool, when they shrink and compress, first the body of the gun, and afterwards each successive layer, all that it encloses.

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