Appleton's dictionary of machines, mechanics, engine-work, and engineering (1861)
Appleton, firm, publishers, New York. (1852, D. Appleton & Co.) · New York : D. Appleton · leaf 718
lar fortification on theground line X.Y, the place to be defended being sup- ^ ■ % ^ 2^ posed between X and A. The mass of earth A B C D x a^_. _°„ J?. H .^*„!T!?r^L.Y EFGH forms the rampart with its parapet. A B is xl—~ /£ the interior slope of the rampart; B C is the terre-plein of the rampart,… … parapet, of a height (about 7 feet) sufficient to protect the men and guns on the terre-plein, and slopedin the direction F G towards M, the opposite edge of the ditch, so that a man approaching there maybe seen and fired at; G H is the exterior slope of the parapet; HI is the revetment, or wall of…
Mechanical engineering
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