...Railway artillery - Personal Page of GENE SLOVER
...Railway artillery - Personal Page of GENE SLOVER
...Railway artillery - Personal Page of GENE SLOVER
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496<br />
friction device used on the 21-centimeter mount already described.<br />
The mechanism used on thiS mount is shown on plate 388. An<br />
elevation are, plate 403, is attached to the cradle on the right side •<br />
. 371. TRAVERSING MECHANlsK.-See "Traversing Mechanism" for<br />
the 21-centimeter railway mount. The design <strong>of</strong> the car traversing<br />
mechanism over the rear truck is shown on plates 390 and 391, and<br />
the mechanism used in giving the molint all round traverse is shown<br />
on plates 392 to 395. The traverse rollers on the 21-centimeter<br />
mount are separate and exposed, while on this mount, plate 396,<br />
they are housed in and geared together.<br />
372. GCN CARRIAGE.-The gun carriage is incorporated with the<br />
car body and is described in the next paragraph.<br />
373. RAILWAY CAR BODy.-The gun is carried in a cradle <strong>of</strong> the<br />
design shown on plate 36. The cradle is· provided with a heavy<br />
counterweight just above the trunnions to raise the center <strong>of</strong> gravity<br />
<strong>of</strong> the tipping parts sufficiently to permit <strong>of</strong> easy elevating and<br />
depressing. This cradle is suspended by means <strong>of</strong> its trunnions in<br />
cast-steel bearings mounted on the side girders <strong>of</strong> the car body.<br />
Each <strong>of</strong> the trunnions is provided with an antifriction device <strong>of</strong> the<br />
design shown on plate 388. The car body is built up <strong>of</strong> two single<br />
web structural-s·teel side girders connected by a series <strong>of</strong> structuralstt>el<br />
transoms and deck plates and the car platform is covered with<br />
light armor, plate 385. Both the traversing roller housings and<br />
center pivot trunnion bt>arings are boltt>d to the bottom <strong>of</strong> the side<br />
girders and serve to stifft>n it. Jacking beams, which, in the case <strong>of</strong><br />
tht> mount t>xamined, had the jacks attached, plate 385, are carried<br />
under the forward and rear f'nds <strong>of</strong> the car body. The car traversing<br />
mechanism, a part <strong>of</strong> whi('h forms the upper center plate over the<br />
rear truck, can be ,seen on plate 391. .<br />
374. ANCHORAGE.-See "Anchorage ,. for the 21-centimeter mount.<br />
The t>mplact>ment shown on plate 397 was ust>d with batteries installed<br />
along the Belgian coast. This battery is only about 1 milt> north <strong>of</strong><br />
Ostend. The designs <strong>of</strong> the concrete and structural-steel platforms<br />
and the emplacing jacks are shown on plates 55, 56 and 398.<br />
375. TRucKs.-The two trucks on this mount, plate 385, are<br />
practically identical. The frame is <strong>of</strong> structural steel and each<br />
carries fh'e axles with outside journals. The brakes are operated by<br />
hand only, and the end and center wheels are provided with two<br />
brake shoes each. Above each spring clip there is a capstan head<br />
serew, identical in design with those ust>d on the 21 and 24 centimeter<br />
mounts, which is run down hard on the clip to relieve the<br />
springs <strong>of</strong> undue strains in firing from the track.<br />
376. AMMUNITION SUPl>LY SYSTEM.-The ammunition car captured<br />
with this mount is a wood box car <strong>of</strong> apparently standard design,<br />
Digitized by Coogle
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