New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1895-08-25

high and sl5 inches wide. This 20 taoie
series Of Wires or r Of knives The clay is taken then
to the pressers and there pressed INTO nrlck ,Oi
where it is dried and becomes ready for the kiln:
This work is all done by machinery More expensive i've
than the smooth rolls for crushing the cay are ne
pan-crshers with perforated bottoms through WHEN
cay falls into eeyaCrs which ss5sy Of nsn N"
inclined at angles of As degrees into the hopper OF
the brick machine .,,,c,
are $50 called dslntegrators and pvverizers some
s4 hy o
ity and durability of the brick depend :argey upon
digging dns ssa has "a largely suppanted hand work
The demand for bricks Of superior quality and OF OF
the last decade This is principally for the use Of
the article in the fronts OF buildings The demand
almost aim f' resulted in new Industry The outcome
great variety Of front brick PCssessns strength sr
Ing attractive colors. BY the use OF ornamental
and moulded bricks. beauty Is given 10 tacades ana
lIghtness and ariness made part or the city s
Pressed orfront. bricks are generally produced by
The finishing is sometimes done In a seam-p power
ns a but & the boe
which it is pressed and shaped The moulding. dry
mg s ah be- dafe the sand must be sted
with caution. and the sheds must be especially con-
too rapid drying When the brick is ready for the
pr II must no e moad no mn
dropped in. There. should be no. crumbs of clay on
the mould or It's I'D. Each brick when pressed. is
slightly rubbed by the hand and then it is piled
with others in pigeon hole shape in SQUARES and
taken barrows with wood soft blankets be-
tween the rows, and wheeled to a shed to await
the time of burning.
ANOTHER CLASS OF BRICK
Ornamental brick are usually made In the same
way the fine pressed brick A model press for
the purpose Is made OF iron and steel in which the
dies Of unusual hardness and fneness For
this special grade Of steel Is manufactured. All
lever does the whole work. The ornamental plates
are OF brass; the ornament being on the top pung-
and frees Itself. In burning these brick they are
carried along in the continuous kiln slowly, and
gently at frs so that they may not be crushed
or squeezed while the steam or water smoke" Is
being driven off. The whole process. in fact. de-
Ornamental and front bricks receive their variety
OF colors usually through the use Of metallic oxides
and sometimes ochreous metallic earths This is all
accomplished in the burning, the materials assum-
sess c Snasr fs5 n e ns
kinds OF clay are mixed. and the action of the
cSfdins to the Intensity Of the hsas Ths Greater
the hea. the darker the color One kind Of clay
FIVE different kinds of clay The mixing Of clays for
the production Of colors Is an art The worker
had long experience in order to secure the
ad G T bn through Gd Tn whs
up to browns greens and notified effects.
THE COLOR EFFECTS.
Notified brick are burned in open-topped. up-draft
kns The clay is one that carries a great deal Of
iron piritss. for the back sp9ts producing Ing the
in the clay. Iron filings are sometimes mixed with
the clay for the purpose. New-York clay carries
great deal of iron To get rid Of this In the burn
ing is often an object in the manufacture Of other
colored brick. The largest building in this city in
notified brick is the Tiffany house. at Seventy-sec-
Enamelled brick are prepared and moulded in the
facturers produce this kind Of article by dipping a
previously burned brick into soft glaze and again
firing ii. The English process, said by some to be
the better. is to place the ename, a friedrich
body and burn the whole at one firing. This pro-
Is used here by some large manufacturers. The
composition of the enamel is jealousy guarded
rk %a sgpseay adaP5ea
boiler and dynamo rooms, Easements and sub
bowling 81 alleys. swimming tanks. stables chemical
watts for mills and toilet rooms OF public and private
The municipality Of London now requires their
use for al. courts and alleys. They are much used
and warehouses The demand is steadily Increasing.
There eight or ten manufactures Of the article
enameed brick good that produced by Eng
land. \ glass enamel is used for sanitary purposes
This is made of flint glass. carbonate OF soda and
RoclS-faced brick is a feature in decorative work.
This Is both moulded and cut by hand. The color is
gray and the rock effect Is produced by Shiselng
work ia the more effective. although 20 per cent
more expensive Such brick Is often used In man
for these Attractive freplaces are made Of the
colored brick Other faced brick is produced in the
mould.
Fire brick from the tough clays OF New
Jersey and supplies materials for gas retorts fur
naces etc II Is composed OF pure Cay and quartz
It is prepared by mixing clay already burned be-
yond the shrinking point with raw clay The use OF
hollow brick Is rapidly developing This IN en-
ployed largely for granite backing to obvate injury
from moisture. great deal Of 1t is utilized in the
Grant Monument.
Eastern machinery manufacturers Will be inter-
ested in the statement made In the brick trade that
about all the improved machinery used in making
brick is manufactured in the West Still, the first
light-colored brick, called the Milwaukee. came from
that region in 1855 when the manufacture OF light
colored brick had its beginning in this country.