Frostburg mining journal. [volume] (Frostburg, Md.) 1871-1913, 1881-09-03


were put on the building ut Pekin
yesterday. Detmold will shortly be
completed.
A VALUABLE INvENTIoN.-Thomas
Farrady, Esq, one of the oldest and
most experienced miner veterans in
this region, has recently secured in
the United States Patent Office a
novelty in the manufacture of coke.
1t consists of ovens constructed in such
manner as to make the drawing of
the coke speedy and easy without in
curing the breakage in handling un.
avoidable by the means employed at
present and which is estimated to be
a LOGS Of from ten TO fifteen per cent.
to the manufacturer. A saving Of
almost one,half the time now required
in preparing the ovens for new
charge after the coking has been
completed is another great olJect in
consequence of which the yield is
almost doubled with the same space
for burning and with less labor than
that employed by the old method.
The sections are composed of three
divisions, the whole being about six.
teen feet long, eight feet wide and
6ve aud one-half feet high in the CT n
tire, with a partition wall in the cen
tire running from side to side and
dividing the sections into two COM
partments which constitute the ovens
the interior Of which are about seven
by seven feet and about four and one
half feet high in tie centre. Two of
tho divisions which compose the euds
OF the section are mounted upon
wheels and compose each bali oven
and when they are united 10 tt cir
respective half ovens in the central
part Of he section they compose the
two complete compartments or ovens
mentioned.
The central division is provided
with two aues situated one upon each
end near where the movable parts
join through which the ovens are
charged.
The ovens of each section are
charged and drawn alternately at the
expiration of every twelve hours.
Alter one of the ovens has been fred
for twelve hours the adjoining oven
is charged and the dsmper put u,on
the fue Of the first oven where it ia
allowed to remain fer twelve hours,
thereby communicating the heat to tie
fresh charge ofthe second oven where
by the heat is returned again to the
fresh charge of the frat oven, the
change of draft being continuously
transferred from one oven to the
other.
When the coke of one of the ovens
is ready to be drawn the movable
half of the oven is wheeled away frcm
the stationary part leaving the coke
to fall into shoots, seven feet wide
situated beneath where the parts d.
vide. where it is cooled for shipment.
The sections are built about seven feet
apart with the stationary parts rest
ing upon foundation like tho ordi-
nary ovens and are built of similar
material. The movable parts are
built of brick resting upon cast-iron
bottoms with course Of brick laid
over the cast-iron for the floors, the
cast.iron bottoms resting upon the
axles of the wheels. The interior,
bottoms and siles Of the ovens slope
to where the parts join about three
inches to the foot. The movable
parts may be operated by a windla,s
or horsepower when the load is
drawn.
As the method of drawing the coke
is speedy and easy, no matter how
thick the charge may be, the ovens
may be constructed much higher than
the ordinary oven so as to contain 6
heavier charge Of coal.
The inventor informs US that at AZ