The encyclopædia britannica; a dictionary of arts, sciences, literature and general information (1910) (14778562725)

Identifier: encyclopdiabri20chisrich (find matches)
Title: The encyclopædia britannica; a dictionary of arts, sciences, literature and general information
Year: 1910 (1910s)
Authors: Chisholm, Hugh, 1866-1924
Subjects: Encyclopedias and dictionaries Encyclopédies et dictionnaires anglais ENCICLOPEDIAS Y DICCIONARIOS INGLESES Enciclopedias Estrangeiras
Publisher: Cambridge, Eng., New York, At the University press
Contributing Library: Internet Archive
Digitizing Sponsor: Internet Archive



Text Appearing Before Image:
angle ofelevation which varies with different mountings. In the mostrecent mountings loading can be carried out with the gun at anyelevation, thus affording considerably greater facility to the gun-layer for keeping his sights on the target during the process ofloading, and so increasing the rate of fire by enabling the gun to bedischarged immediately the loading operations are completed.Elevating is by hydraulic power, and is effected by cylinders placedunderneath the slide, the pistons working on an arm projectingdownwards. Turret turning engines are also hydraulic, and muchattention has been given of late years to the perfection of elevatingand turning gear such as will enable the turret or gun to respondinstantly to the wish of the gun-layer, and to move either with con-siderable rapidity, or very slowly and steadily as would be the casewhen following a target at long range and with but little motion onthe ship. The breech is opened and closed by hand or by hydraulic 234 ORDNANCE
Text Appearing After Image:
From a drawing supplied by Messrs. Vickers, Sons & Maiim. Fig. 91.—Diagram of 12-in. Gun Mounting, Dreadnought type. A, Bc, D,G,H, Roller ring.Gun slide.Recoil buffer.Gun cradle.Rammer.Loading cage. K,L.N,P.,P2, Elevating presses.Guide rail for loading cage.Trunk cage. Breech block in open position.Breech operating handwheel. Ri, Transferring rammer pro-jectiles from trunk cage togun-loading cage. Ra, Transferring rammer forpowder charges from trunkcage to gun-loading cage. Rs, Transferring chamber. R«, Training rack. Rs, Training engine. S, Rotating trunk. T, Turntable. W, Casing for chain rammer. power, and a douche of water or blast of air, or a combination ofboth, removes any smouldering fragments of cordite or cartridgematerial before a fresh round is loaded. Although there is little difference in principle between the arrange-ments of the mountings in the later Majesties and those in the Dreadnought, improvements in detail have enabled the intervalbetween successive round