Journal of the United States Artillery, Volume 38Artillery School Press, 1912 - Artillery |
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Common terms and phrases
12-inch gun 32-pounders action Aeroplane Airship ammunition anchoring-chamber armament armor Army Artillery District Assignor August barbette battery battery commander battery practice Battle Practice battleships boats cable Captain carriages charge chief umpire Coast Artillery Corps coast defense commander's companies depth Describe the subcaliber destroyers detonation device distance Engineer explosive feet field fire command fireships flank fleet Flying Machine Fort Beauregard Fort Clark Fort Hatteras Fort Monroe Fort Walker fortress fuzes gear Germany gun cotton hits immersion inches in caliber infantry JOURNAL July July-August June land lever method military mines mortars mounted muzzle velocity naval Navy nitrocellulose nitroglycerine October Ordnance Officer picric acid placed port position projectile range rifle roadstead barrier sajens September service practice shell shown in Fig smokeless powder speed station steel subcaliber targets submarine tactics target practice tion torpedo trial shots troops turret United versts vessel weight yards zone
Popular passages
Page 345 - Commission may utilize the services of the Bureau for the Safe Transportation of Explosives and Other Dangerous Articles...
Page 214 - Since a unit of power should represent the same rate of work at all places, the "continental horse-power" is best defined as 736 watts; this is equivalent to 75 kilogram-meters per second at latitude 52° 30', or Berlin. The circular gives tables showing the variation with latitude and altitude of the number of foot-pounds per second and of kilogram-meters per second in the two different horsepowers. These values, 746 and 736 watts, were adopted as early as 1873 by a committee of the British Association...
Page 90 - Squibs, by Clarence Hall and SP Howell. 1912. 19 pp. TECHNICAL PAPER 11. The Use of Mice and Birds for Detecting Carbon Monoxide After Mine Fires and Explosions, by GA Burrell. 1912. 15 pp. TECHNICAL PAPER 12.
Page 341 - Representative to the American Association for the Advancement of Science The American Association for the Advancement of Science is a federation of scientific organizations, as well as an association of over 135,000 individual members.
Page 90 - The Bureau of Mines has copies of these publications for free distribution, but cannot give more than one copy of the same bulletin to one person. Requests for all . papers cannot be granted without satisfactory reason. In asking for publications, please order them by number and title. Applications should be addressed to the Director of the Bureau of Mines, Washington, DC 70 71 BOOK REVIEWS The Copper Handbook: A Manual of the Copper Industry of the World.
Page 316 - ... assumption seems not to be true. When the guns in ships of the line were all about the same size, the method was legitimate ; but it is believed to be entirely misleading at the present time when they differ so much, some being, perhaps, unnecessarily large and others too small for the work to be done. Are not the numbers and sizes of the guns carried the best and only safe standard of comparison ? ' Thus we see that, whether we consider the difficulty of hitting or the comparative effect produced...
Page 263 - Four holes radiate from each of these grooves, one set opening on each side of the piston. Oil can therefore pass from one side of the piston to the other in two ways...
Page 213 - There was, before 1911, no precise definition of the horsepower that was generally accepted and authoritative, and different equivalents of this unit in watts are given by various books. The most frequently used equivalent in watts, both in the United States and England, has been the round number, 746 watts; and in 1911 the American Institute of Electrical Engineers adopted this as the exact value of the horsepower. It is obviously desirable that a unit of power should not vary from place to place,...
Page 316 - The above results seem to indicate that the smaller gun is by no means to be neglected as an instrument for this purpose. The effect produced depends not only on the size of the projectile, but on the place where it hits. A small shell on the right spot is more effective than a large shell in the wrong one ; but to hit the right spot is difficult. Hence, in determining the armament of a ship, a careful balance must be maintained between the number and sizes of the guns carried.
Page 176 - Creek, and another at a point on the edge of the shoals to the south. This enfilading fire on so still a sea annoyed and damaged us excessively, particularly as we had no gun on either flank of the bastion to reply with, for the 32-pounder on the right flank was shattered very early by a round shot, and on the north flank for want of a carriage no gun had been mounted.