MODERN
GUNS AND CUNNERY.
229
s It. was ac~ordingly determined to bring out a fresh design, pre~ i erving the hIgh ballistics of the old gun (1930 fs. with a shell weigh;g ~1'71 lbs.) and free from the objections to which the older gun ~s Iable. !his gun was known as the 1902 pattern. t n 19째3 thIS equipment was again modified by removing the axlere seats ar:d adding a shield and a panorama sight. are yet available, but it is id ~ drawings of the 1903 equipment .~~tIcal, except as regards the above modifications, with the 1902 ~iexern, a ~escription of which has now been published by Captain . T androvltch of the Russian Staff. he accompanying plate represents the 1902 gun. (Fig. 98.)
N
The
G2t1J.
Sis;he gun is of nickel steel, calibre 3", 32 calibres long. It conf fro sOh an "A" tube and jacket, secured at its forward end, 56.4" them t e muzzle, by a locking ring. The guides, which are under on agun! are .continuous, and are formed partly <?nth~ jacket, partly to th gU~e-Plece, both ends of which are formed mto nngs shrunk on Wa de c as~. The rear end of the breech-piece is extended downbr r s forn~llng.a horn into which the buffer-cylinder is fixed. . The al1~ec~-~fhon IS a single-motion cylindrical interrupted screw, generto SlmI ~r t? that of our ] 8-pr. Q.F., actuated by a hand-lever on re p. .It IS. Intended for fixed ammunition. The firing gear is a stfa~atIng tnp lock of very simple design. By pulling the tripper the~ghi to the rear with a lanyard the striker is first pulled back and strik re .eased. The forked extractor is actuated by the carrier, which es It at the end of its swing, as in our Is-pr. Q.F.
Tlte Sights. for~~e ar~ sight is much the same as that on our Is-pr. Q.F.; the _~_ handlg~ IS hooded. The clinometer level is attached to the leftTh SI e ~f the arc sight, low down. be s : gOOlometric sight is a simple circular laying-plane which can ddl: ~m top of the arc sight. It has two sight-vanes and a separate In thCtIon scale. It does not correct for difference of level of wheels. 1llent ed1~03 equipment this laying-plane has been replaced or supplearc Si~ht.Y a Goerz panorama sight which can be fixed on top of the
The Cradle. suJ~is is a steel tube, carrying guides for the gun on its upper tal t ceo has no traversing movement, but is mounted on horizon\Vhol~u~n~ln~ on the trail. Traversing is effected by shifting the bUffe r~. nght or left along the axle. The cradle contains the r an running_up springs.
!t
T he BUffer. Th' .
resist IS IS of novel construction. In ordinary buffers the graduated the p~~ce, to recoil is obtained by allowing the liquid to flow past inner IS on through channels or ports of varying depth formed in the is a clsurface.of the buffer-cylinder. But in this equipment the piston in th 째hellfit In !he cylinder, and the liquid has to flow through holes e 0 ow piston-rod formed just forward of the piston.
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