Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)
D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 504
servingof the sun, and the greater security to the gunners, and, as the consequence of these advantagesin combination with a suitable class of rifling with uniform twist, far greater endurance of the gun,higher initial velocity of the projectile, increased accuracy, and better powers of… … hoops are double. Fig. 3265 exhibits the gun on its carriage, and the construction of the piece isshown in Fig. 3266. R is the breech or bottom piece, A the hooped or middle piece, and C the coneor chase. The breech-piece immediately in rear of the hooped piece contains the wedge-hole H,cutting…
Mechanical engineering -- Dictionaries
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