New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1883-08-30
SPECIFICATIONS FOR THE SUPPLY OF
coupoifS ID Amor PLATES FOR THE TUkEEG
ARHOR OF TIE Z. >. MONITOR
MIANTON oMOH. .
The supply to consist of the iolloWin
M anna

The supply to consist of the following plates;
TURREr PLATES.
o oo-+ n,afes 10 Il inches thick size and SHAPE
.ban IN the plans Tne ports be roughly fashion 50
to margin Of at least half an inch on TIE hn'ned side
sbt bates II inches thick of size shape Shown
hon IN the plans two piohou inches taick Of
n eIa 70 plot houses two parts shaped
20 howa on ' and the line o. ire
Oh s bo. suppy to be fashioned and fitted at the edges IN
ss G7as he --LATEST 3s' nS tSs:
erected at the works Of the contractor and carefully teSd
The opoption Of and wrong lit rOD. aud the quality
D Whole lot Of pat must exhibit practical uniformity IN
chemical Ian and physical tSIist,
plate in the presence sgent OF the Department saa
number o. tss fIGp p. 'st BY Se
& percentages Of carbon any OF the steel pas must nos
nsf be amount Of phosphorus 2sloooof
per cent from the mean Inc spe , ha ay nSes
@ con shall m no case exceed fourteuths Of per
The physical oharactescs of steel from the same relative
rom and those Of the iron NOT more than hss r
cent tests viii be made at the expense Oh h'
m rnd b ~ pa Is a.e finally matched ont Of the loo
will be selected by Department for nIns test ana
portion not less by elgh feet IN size VIII De GU on
anS ss =, %aS be dirscted ~
THIS plate eu e the proper Swa on the paSs or
the actual turret and resembling In al respects sseoos
thereof. A. $1,000 ar .unno-tad from
tho rear near edges must DO subjected " the following
lesLst a,,H.pv rrsra
The oats must receive Its centre blow from l0lnca
tide shot quality and design Is the
~ ~ .eect The weight shot TO DO oOO pouhns ahu .ns
strknx velocity $40 teet per second Inc DION 10 20 ~
yere-l moi NAL tangent 10 the surface "a tao PAu
The noin impact The point mont edge OF the snos
mnsi not GET through the plata neither must any "a
plate detached from the backing by reason u Tue
the shot ACKNOWLEDGEMENTS
cach of the three portions shown the plans one DOW
e. to he delivered target BY lOinch ue s.se snSs
of ANAL v design AMI weight az aioremenuonea Inc sA
ing velocity o 1873 eet per second ., ,,. ana
ach blow TO delivered normal 70 tangent 70 lne sur
face of the point OF impact or al the
TIE neDlrtnent all OF these secondary shOt NAV 70
S "a M 10 strike points al any angie VIA te
mai tie corresponding total energy OF paot 70 oe
Ia the ato sacant VI the angle OF ne wl ths w
Under these secondary tests the target Is 70 DC a 40 ~
completely penetrated 49,, H.. ,ara fac. shaIl mos
M. sfrnUed OF shaA by tho end OF the eNleAeA's
neither shall any part OF the plate fall from the oack
Ihe only need be delivered before Inc SeeePSS
~ win no seen that II Department should require tns
conracfor 10 cut OF t1e large plates Or the
of the trres will contain Two plates each "eisnns
% nept ia TO have the right TO keep one or more
Tor ernmning Tho material and witnessing Ill pAs
Tie and ply steal tests NAV Dc made - the wofA
- II. hare az me discretion Of the oel ertmen:
OF eis0"D0iH ~ ThEODoRE d. WILSON,
Chief Constructor, U. 3 ~, Chief OF Bureau.