The encyclopædia britannica; a dictionary of arts, sciences, literature and general information . Fig. 52.—De Bange Obturator. Fig. 53.—Steep Cone deBarge Obturator. the heavier projectiles is in reality less powerful owing to its in-ternal bursting charge being comparatively small. Again, manyforeign gunmakers claim that their guns are, in comparisonwith English guns of the same power, of less weight. This istrue in a limited sense, but such guns have nothing like the samefactor of resistance as English guns, or, in other words, the English HISTORY AND CONSTRUCTION] ORDNANCE 209 guns are much
The encyclopædia britannica; a dictionary of arts, sciences, literature and general information . Fig. 52.—De Bange Obturator. Fig. 53.—Steep Cone deBarge Obturator. the heavier projectiles is in reality less powerful owing to its in-ternal bursting charge being comparatively small. Again, manyforeign gunmakers claim that their guns are, in comparisonwith English guns of the same power, of less weight. This istrue in a limited sense, but such guns have nothing like the samefactor of resistance as English guns, or, in other words, the English HISTORY AND CONSTRUCTION] ORDNANCE 209 guns are much stronger. This is an obvious advantage, but an as near the breech end as possible; by this means the radius equally solid one is the fact that owing to the greater weight ofthe home-made weapon the recoil energy is less and consequently. of the gun house is reduced to the smallest dimension and, in consequence, there is a great saving of weight of armour. The extra weight of the gun is therefore more than compensated for. \NV\\\ Until late into the 16th century ^\\\\\\\\\\\\\\\\^^^^^ the libresof the guns were not i ^\\\\\\\\W mm\\m\\m\iM\\*«^ Fig. 54.—Metallic Cartridge Case. the mounting can be made of a lighter pattern. Besides, theweight of the gun is so disposed as to bring its centre of gravity Table II.—Names and Weights of English Cannon, i$74- regulated with a view to thechangeability of shot. In the follow-ing century ordnance was divided intoclasses, but even then, owing no doubtto manufacturing difficulties, therewas no fixed size for the bore. TheTables give some idea of thesize and weight of these pieces. Table II. is taken from ClevelandsNotes, but corrected from An OldTable of Ordnance (Proc. , p. 365); the last column givesthe range in scores of paces at point- ? Name
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