, 1876-07-24
Models Of Dry-Doclss, Floating,
Docks, and Slips
of.1Yar.
The Steering Machine aud Graphing.
sounder'-.Big Guns and
Mortars.
Practical Works from the TeclluoleelcaI
Institute Of St. petors.
burg.


OF tho British Commissioners, In q Iocsusu do.
liVefed In this city before the Social Science
Association, stated that tbs Moscow Exhibition
OF 1914 Hss The best that The world had cyc1
seen, 60 far rs symmetry Of arrangement w4
concerned The Russians certainly ara yory
thorou9', In al their undertakings. Here, 10
this Exhibition, their display, while not 80 e.
tonsiVo 10 ttat Of France, Germany, Or ENGLAND.
Is most carefully selected and admirably set
forth That part which T. located In Mac6incr1
Hall Is made up almost exclusively Of Governs
'neht contributions. The Naval Museum Of st.
Petersburg, tho Imperial Admiralty, and tha
Aydfographic Bureau arc all represented. TIM
unitcd exhibit serves powerfully to impress tho
vtaltoe with the immense rcsourees Of tho
Empire. aud tile wonderful progress it In,
made In scientific engineering since the days
When Peter the Great took his first leesous In
sh1pbulding at the Hague.
In glancng over the naval collection, tho
fcatures thst attract attention t]rat arc the mod
els Of ships and dsy-docks. The Imperial Dry
Dock ut Cronstads Is hero reproduced, even 10
thc most minute Particulars. 1t has length
Of s00 feet, and Is calculated to accommodate
vessels drawing % feet of water. The average
depth Of the water Is 3l11 fret. The breadth Of
tue caisson is 10 feet. Surrounding tho cistcrn
Is line OF rails, upon which steam cranrs aro
propelled to my desired point. At the sa,no
time, there Is stationary steam crane at each
end Of tue dock. The cranes havc a capacity Ut,
from 10 TO 20 tons each. The entrance Of tho
form the pavement around the cl,tcrn.
"A model ts also shown Of 4 floating dock at.
Cronstaut. IAcso docks, which may he built
ei.he5 u Iron or wood, are for the Use Of ves-
sells disabled, or 10 enable vessels to croas ehul-
low water They arc Guatlransular i'll shane,
md the one whose model Is here exhibited las
al outside length Of s2o5 feet.
Tho Russian Navy Is known to bo formidable.
The uodcls shown are nj, nf ships nov existing,
aud, though not many arc given, they eaci, rep
ia q n,lnlntMro Of the corvette Trmtehong, uuo
Of tho swIftest salerB In tho feet Its length ID
24O fcet7 It's brodth 30 feet, and Its tlraugt 151I
feet. 1t is armed with three B-lncs4 slcd can
Tic Imperial yacht Ltyalo, OF which q model
is exhibited, was built expressly fur tho use Of
the Imperial family; md, In It's construction,
M high speed ard safsty d scro equally cons,ltel.
and j draugllt Of Is feet. 1t has thu oscilnth,z
cylinder engines, with q capacity Of 40 horsu@
power, and speed Of Is knots an hour.
A circular iF0n-lad yessG1, na1lcl after Ad+
m!ral PopoH, who was Its inventor ia ss own,
There nro two 81 these wur-shlps III the Russian
navs. The leadiug Idea In their construction IL
to eccl1re tho grcatest capacity Of weight VIII,
<%8 A4NAtEbI A4Auku+s Ill LHlS kHG1 lUIlO" Ouk
the idea Of al. Reed, Of the Dritkl, nary, WHO
advocated thu shortening OF slips far tic pur-
nose Of obtaining handincss and reduction ut
] weight. Tic i11ls-e)ad, Of which :his is thu
drauEht Of IL feet und inches, and total die.
placement OF {, $50 square feet
Another fron-clad Peter tue Great, is exhibit
ed, though a,n not M ot the eireular forn It las
Inches, With draught of q feet aud inches.
Thia vessel Aas twu screws, and two engines of
D0d horsepower eacli, anu carries four 12'tnch
guns.
OF naval apparatus there Is a complete OK.
hlblt. Ono Of lbe noticeable articles Is tlotiu1
OF Mozikrott' Is 6tccrfng-lnaclIfnc. In this, rA-
yantago j. ta:cn Of the motion Of the nropcalers
shaft, which is transmitted, BY snisable applca-
tion Of the gearing, to tho asls Of tho steering
wheel. 4 standard conirass, with lighting MP
| paratus, Is made 10 TINT light Ia reflected hy n
lump directly On tho car.l Of tho compass. Thia
! is, ot course, for tse at night. ~ gyappltng-
fonu1cr for dccpsea soundi,Iys Is co,Il|,osel Ut
two cups attached to bars iufcd Ia scissors-iiko
fashlon, and 20 mado that, az touching bottom,
thc CUBS instantly come together, bringing with
them everything that Is 1T their ROAD, aid aEo
| then raised Ike other drctlgcs. TAls machine
was used worry successfully Iii tho late survey OF
| tha Caspian scu. Besides these, there ara
patent appliances for lowering boa.s III stor,a,
patent safcty-ralvcs, consisting uf large, squasu
pieces Of mating, 10 be lowered outside lca!s-
lug vessel fur tho purpose Of stopping the hole,
a41A lupNC4a ~ AAASt%kbp5s
III,
There are half-a-dozen guns md mortars os
Rs,an 10 ann!aGtafs on .e3 cfIeit9n L. ma.
| ploys guns Of homo manufacture exclusively.
Tllu rule Is regent one, s!lice It WAS only few
{sars ago that Krupp found q, ready market 10
7asssst san Il if'n' &c ga. st sow s "'es s unss s
one. At Vienna. thu Russian Government
exhibited ! 1@luchcr; Lut, M account
| Of tho trouble and expense of transportation SO
| dc!phla only The lighter ljnd. Tic zig kr,lpp
gun In tue German Department, to whly MlIll-
atou has been ~ often ma4e. hAs boro Of IA
tnrncs: Thu !lusslan guns, however, arc largo
The tInch rile:gnn before alluded 10 VIA
manufactured At O6oukofy. Ons pecu'tarity Of
tho groove Of . rlilc-gan wears n"ay after hclnE
fired about thousand times. It hatl been csla-
toaiary until recently. to throw away thu gun
after tho groovc had been destroyed. Now,
which Is Inserted In tho buro: and,
after tho groove becomes sufficiently worn
Away, tle cylinder L. withdrawn. and new
ono, with fresh grooyc, inserted III its place.
Tho gun carries l'sojccsi9o weighing 300
pounds.
4 smaller gun. for 17.pound ball, Is shown.
s ep pdsea e upoa po Dsa ssttss1 su. asg - or S1r
raising anl depressing the 1uuuth ycry rapidly.
This IL for use against torpedo-boats, to attaeis
which requires extraordinary quickncss Of ain,.
OF tho otler guns, there Ii noticeable T.
tncllor, having u carriage Invented by Capt.
an 8-inch mortar. A model Of Moa!tor In
vented by Admiral PopoH Ia interest,"
Ing. THIS carries two guns, each
Of 12inch bore, which ura e!o-
vated by hydraulic pressure out of their beds
70 level. aud lowered out Of hajm's wuy after
being tired.
~.
The remainder OF tho Russian exhibit III au-
chfncry Hail Is mostly taken up With r,tiee-
ton u practical works from the archaeological
Institute 1f 1t. Petersburg. Thta school Ii ono
ot thu highest Of tho kind now exlstlug tu
L Russia, and Inns arconan.odation for Gov stu
dents.' IL IL divided Iuto two departments,-
mechanical aad chemical. The forhlor prepares
men for the. management of fnaei,inostups,
entering tho lnati(ute, tho student must h4ye