New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1883-09-17
SPECIFICATIONS FOR THE SUPPLY OF
CoMPOUNp ANMOR PLATES FOR THE II RRET
AKAOE or IHE u. p. MONITOR
MIANTONoMOH.
The supply 10 cnnhi't VI NV '"''Vhi"p P''''N''
TuKRET PLATES.

MIANIONOMOH.
The ,uyply to conaist Of the following patesi
TuKREr PLATES.
Two mort na,es T. L inches thick Of to size and shape
shown rae porte 70 DC rVus 80 ~
70 slve margin at least half an Inch on the hnishrd Sde
paes II q inches thick OF size shape shown on
the plans piae ~ inches thek Oh sLN anu sha 10
H. asa shipe shown the plans. .,...,
rho covers pilot houses 80 be IN one or TWO parts Shapel
10 q cone shown tho plans the psGc OF laoOs' or
junction vertical and Al rshs angles to the Line OF hro
fR he Whole supply fashioned ard lifted a. the edge In
lei dividing inc thickness OF The hrhtes plate into three
equal par;s with c29 o. % s and narefly tested
ss 10 III nos, aud form before being doliyerei
Tbo opoton Of and wrong ht iron and the quaiy'
t. be left 10 The conrsc or ,,,, .,,o, i,o-,Itv &,
chemical ard physical cnaiae terisIcs o,o,
hcse points hSe ny IGor n, sSch
humber spocimens from such poons N re a -
The percentages carbon Ia any Of the steel PITT mus nos
dner more than S one than 26.Io00 Of
per cent from tho meal he sp at shox sny pRos.
eon email IN no exceed fourtenths Of one per
The phyca chgractecs OF steel from the same am ra HaS
positions "a the plates must NOS var more man HE ver
IRON ind those OF mo rqn no. Of the Depart
peos ie pia o. finally matched one out OF the zoo
vii bc se tcd sy the Department Tor hrinf test ana
portion than SIX by eight iec IN size % 40 AZ saoh
n na as may be- directed by the Department 10 .,,,
I'm. Plate sSs Sn' n 10 To so a. me plan. Tor
The actual turret. and resembling III al ie'P'0 '''
nv nr.nsred and hrIny br2ced or supportsn ioin
sr eir its edges II must be subjected 10 Vhe loo"Ns
testsi pp1NkRY TESTS.
olate must receive ITS centre boT from iVlnon
o SUI quality and design As ue Deps.
I 1850 The weigh shot TO bo oOO ponhus anu 'o
n, yeloe,iy $40 per second Inc DION 10 DO 10
~ ,i of Impact The post or front edee OF Ino sos
ne or re. through ate neither must any peIt VI
@ ached from the backing by reason Oh tuo one0' VI
The shot ouCoNnARY TEsTS
.cb ~ the three portions shown on the plans ono Dow
upon the target ~ lUneh line sssol snoU
~ i design ami wei ght as aiotelncnloneu' Inv ''A
% 10 he ~ ~ feet per second A.. am
h,ir,r he normal 10
he nate az point Of Impact or AZ tne 9is.l ~.
all OF thcse secondary snot NAV 70
rsd 80 ~. 10 strike same points ~ any 70 s.sa
beu 80 espondng total energy OF Impact 70 DC
pal TUG ~ Inc sscan angie OF nre Win VIC &
Under these secondary 'oA'' '''
eel face greater than Ave square eet snhi no'
~ anal OF the end VI tho ehpotiu0H'''
PbI anv part OF plate .1l IRON inc
w. only need be delivered bei0te the 'oooP
Of the lot q, 81. pypor,niout shouid require the
Ia ut ons OF tho larSe u ates or tns pin
of The turrets Will contain two plates eAcA "eis"Ns
about So tons . o., b,x. the sht 10 keep more
e.. "a fSe works who shan % turhishca ss9iJ
The raw materia! aRd witnessing AL pS' "
10 and physical tsats NAY os made a. me "o'N
AZ Tie discretion - ne pep%Itn..n,t; so.y
Chief Constructor. U. Il Ne Chlsi o. Saissu'