, 1863-02-05
HERRING Il CO.'S SAFES.

Il gulnr octahedral form, with tue cdges re-
placed The Franklin;tc constitutes about
(orty-tiyc per cent. Of the mineral contents,
the rest being mainly red oxide Of zinc; the
reeiduum, nfter the oxide OF zinc ID driven
of, being FranklInite, is smelted into iron.
The underlying bed appears on the surface or
out-crop to be almost pure massive Frauk-
Unite. aIuorphou6 In structure, although oc.
casionally also exhibiting very largc and near.
IL perfect crystals of the Franklinite. It con-
tains no rcd oxide Of zinc, which fact is the
distinctive feature between this and the over
lying bed, which is generally known as the
bed Of rcd zinc. As the underlying bed Of
F1ankliDite descepds it becomes less pure,
the Frank1fnite being replaced by the crystal
line Limestone, With the Franklinite and will
lemito (anbydrous sillicate Of zine) thickly
lntersperscd in grains and Imperfect crystals.
1t preserves this character In its entire depth
as far es explored, nearly 200 feet below its
outcrop This bed is about twelve feet in
thickness, but is not worked. Several huh
tlred feet wcstwardly Of these main beds, and
higher up on the hill, another bed Of Frank
Unite, mixed with Il little red oxide and
good deal Of the sillicate Of zinc, is found
running TIC entire length of Sterling Hill.
Attempts had been made many years since,
By some of The iron works in the nefghbor>
hood, to smclt the Franklinite ore, which ap~
pcared in such lrge masses and so easy to be
mined; but none OF these early operations
proved successful, owing. no doubt, to the
great quantity Of zinc in The ore, which IN Its
process Of yolatilization absofbs a large
amount Of beat and thereby tends TO chiti the
furnace EARLY in 1855, Mr. E. Post OF stan
hope, n. j., undertook to WORK the orc WIN
anthracite In blast furnaces at SiaAnope, ana
succeeded IN making some pH Iron cr o. soen
discontinued. In the same ycar, Dir. =. =.
Dentmold successfully and permanently cs-
taDIished the manufacture Of iron from the
zinc and Franklipitc ores at tue works Of the
New Jersey Zinc Company By snleltiug the
for the purpose Of making the white oxide.
This branch Of industry is calculated to be-
come Of much importance, Us the iron pro-
duced from this residunm not only yields
bar iron Of remarkable purity, fibre and
strength, but is especially suited to the man-
ufacturc Of stcel. The pig iron produced is
almost identical in character, appearance and
structure, with the best lamcllaT iron made
Of tie famous spathic ores of Slegen and Mt
sen in Germany. Its fracture shows large
and brilliant eilyer-whitc la1ncllar facets,
sometimes beautifully crystalized and SO hard
as to cut glass; these CRYSTALS are not attract
eddy the magnet.
STRENGTH OF TIE FRAEKLINPTE.
from the New York Timesl
+ There is Krupp, the Prussian, Who
forges teR-inch steel columbiads, solid, and
"3ittt HNhE aft A6GA Ai1 DAtf 1NTNisE. Auu
there Is Howell, the Englishman, whose cast
steel forgings are as Homogeneous Us copper,
and resist tensile strain Uf 1000 pounds,
while that Of tue best iron is 10000. Plates
Of this steel arc found to offer above twice
the resistance Of iron plates to shot. But We
need not 20 abroad. An eqnall5 good metal
is similarly made in Pittsburgh, and if tht
jersey, prove to be what It is represented, tht
best iron orc of the world-the material fol
the production Of the most perfect steel in tht
world-wil be in our possession, +
From the Scientific Amelican.]
From the recent trials made: by the Admi
r1lty Of Great Britain Of the best English boil
cr-plate iron from different makers in Stafford
shire, EcrDyklire and Shropshire, the tensile
strength upon square inch Was found to b,
1916 tons or n eco pounds. The English Low
Moor bar, as tested ut A1ger's 1orgc i'll Boston
gave m ultimate strength Of $3.50 pounds
Tic New jersey Franklinite bars, tested lut.
at 15,CG0 Kilograms, and the charge un1c
WHICH it broke was Is 900, absolute tenacit,
per milimetre, 40 Kilograms III.
HOW WE USE II.
| The patent, OF rather two patents, whicl
| re hold. granted to James Z. Floyd, Octobc
1G. 1850, anil rcissucd May q, 1862, give us th
| 6GkE ll4u CAClAEeL N4 llE iAuh
Unite ore, or 's sCrystallized Iron,'' applied il
any way to an iron safe; and willie We ca!
furnish 1t in any pattern. or shape desired
either cast whole, or run between plates in
melted state, our experience Inns dictated an
approved Of the following as the best an
most perfect plan:
The Franklinitc or Crystallized Iron form
the centre or middle portion Of our Burgl,
Proof Safe. The outside being composed c
heavy wrought iron, and the inside Of bars {
steel; In this position the Crystallizcd Iron
placcd-rure and unn,ixed-being completed
protected from violence or fracture, and in
peryious to the burglar drill; no blowpip
tan withdraw its 'temper''-and, indees
though it wuyc heated to melting state, who
cooled il, is as hard as ever. Here We have th
great feature Of superiority presented by th
Patent Crystallzed Iron. IN its natural stat
it is as hard as a diamond; and, unlike otle
metals, wbic], are artiticially Or mechanical
luale hard, not only the outer surface OF cru:
is drill-resisting, but the texture Of the met.
Is Of the eame consistency all the wa
through.