New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1883-08-27
THEODORE d. WILSON,
Chief Constructor. U. ). ", Chief Of bureau
SPECIFICATIONS FOR THE SUPPLY Or
COMPOUNU ARMoR PLATES FOR TUE III RBAi
ARMOR OF THE U. >. MONITOR
MIANTONOMOD.
nh. ia dat nj ha IN DlateS.
The supply TO consist OF the follow
III. 4. L. IN. nj III 10

TuRRET PLATES.
Two port plates 2a inches thick. of the size and shan
To margin Of at least half an ileh on the hnisned aide
isht oates inches thick OF size shane saown on
the plans one plate Inches ics 81 aehs and s
size aads hs ps shown on the plans s.,
10 cone az shown the plaas the plano Of ra6oet
junction vertical and at right angles to the Line Of b
The wnoe supply to be fashioned fitted the edges
Se dyians the thickness Of iho Ighes plate 1910 tr
ega parts with depth of half inca The amor 70 q
thickness and form before being delivered ona,r,
T%e Whole lot OF pat must exhibit practical uniformity In
10 ascertain these points the Mt actor VIII TAKE sne5
paber Of tss, spsemess fn such positions -
may directed these will be tested by the nenI ~
diner than onetenth Of one Dor cent frO9 the en-, q
must he amount o. phosphorus ene. o ba show PET
cenages OF carbon above the mean must not sho" @
The silicon shall in no case exceed fourtenths Of one p
The physical characteristics of the same rsan ,
positions In the plates mast not vary more than yea n r
cent hese will be made At the expense oil 'h'
Before ihs pa 81 are nsy matched on. Q; the Is
will be sele ted by the Department iG MINI s Cat
and ceivered by the contractor at his own expense
place be directed by the Deparmen he Furnished
bacsea Joined and bolted saown on the pans srsa
the actual turre. and resembling IN all fesp'e''"
rims prepared and hrmly braced or support
the rear near IL u.ust DO subjected " ING
tests; ,,,,.,,,, ,rpsrs
The oata must receive eonte blow ro9,
rite stel shot OF quality and design rs h me
m v selee Tho weight o. shot 20 % oW pVu. hs a.
yeloeiy $50 feet per second Inc v a. me Al
hysrei mol tangent TO the surface u ~ RE shos
the NOM Of impact The point or foat cog u az the
"at ret through the pac neither must any pai r az
MIA be del ached from backing. by reason Oh TIC
the shot .ncovn..yr nsrs
AZ zach of the portions shown ON the plans skos
"a 70 ne delivered upon target by iuinch ne stK-
~ oualiry design amt wctght a. aforslnenionoe' ~
fny vaostty % 1. ls3 yer second m soe sur.
arb bIow 20 delivered normal 70 2ns ,.tou e
face ID ,e the point Of impact or "a tes NAV
fhs Deparnont any all o these SECONDARY & ina nor.
d 81 W 20 the points NJ any anfs
mai inc spending Of ~ % 1ana
Under these secondary tests the targes IL W W ~
Az area of ssecI lace greater than Eve square eei
ia sfyiupsd or by the end Oh the oapS
neither shall OF the plate fall from inc
The test plate only need be delivered before 'io ~
OIL viii he seen tina, n the Department sbouid ss
men one o, the ruYrets will contain Two plates e<eA
about ga A.. S... ane or E1oy
he pepsTtmcnt Ia have the right to keep az facility
icsnectors Al The works who shall oc furnsne nrrA
for examining material and witnessing ~
The icar and ply steal tests msy no made ~ ~"
mr. Ise cnere &c the Discretion Of the any
VI 80" Ae'S' THKODukE 3D. Wikss,..vr..an
Chief Constructor. U. 8 NJ cniel VI