The daily dispatch. [volume] (Richmond [Va.]) 1850-1884, 1880-07-22

wholly stripped Of our clothes. When we
era vled ort I hoard the rush OF water at
our back. II Oiled in fsst, but the
obstructions kent II back long enough
for us 10 escape from the main shaft
II was nII we could do to save our
selves. woodland was standing In the
wster mn TO his waist when last saw
him. II was sure death. and ! had to knock
out the ewes. as / told you. He knew rs
well az that IL was all over with them.
shall never forget the look on bis face or
the sound Of his voice as he told us 10 save
ourselves, though the very act was TO insure
bis death.
THE TUNNEL.
Three hundred feet OF the tunnel have
been completed, 200 OF which are under the
river itself. The method OF building the
tunnel Is different, II Is claimed, from any
thing ever before attempted. The principle Is
adopted OF using compressed air TO exclude
the water. eyaporaie the moisture OF the silt,
20 that the latter. by being thus dried, can
be easily handled at the beading. The land
In this vicinity il largely OF cinders, which
have been filed in, and 1t Is so porous that
when the tunnel was first commenced there
was constant escape OF the air which was
forced into the excavation. This was
remedied by burying large sheets OF cam
vas several feet below the surface OF the
ground. The lower the tunnel went, how
ever, the more compact the filling became.
and the less annoyance was experienced
from this source. The pressure oil the COM
pressed air used in the tunnel is about
twenty pounds 10 the square inch. The
two air compressors are kept running day
and night. They pump the air into the air
reservoir, which is OF tough boiier-iron,
cylindrical in shape, and has diameter OF
feet IL inches. A gauge ut its side always
indicates the pressure OF the air In the
tunnel. From the reservoir the air Is
pumped into the tunnel through the air.
lock. Upon this supply OF pure air and
a careful regulation of its pressure the lives
OF the workmen and the success OF the
work depend. The tunnel was gradually
pushed downward from the air-Iock until
the proper level was reached, instead OF
being commenced at the bottom OF the shalt
and continued on the required level. This
was temporary device, and after the work
bad been thus prosecuted for distance OF
300 feet the heading was bulk-headed, and
the workmen, turning In their tracks, be-
gan to dig toward the shaft, and to clear
away distractions in this direction.
n
nearly round. Their shells are cylinders
made OF boiler-iron, about % feet In height
and 90 feet in breadth. They are made In
sections which are welded together, and the
completed shells are pushed ahead as fast as
the excavations are made. The iron OF one
OF these cylinders is inch in thickness.
The sections or plates are 2 feet inches IN
width Some OF them are feet and Others
G feet in length. On each OF their four sides
are flauges q inches IN width, through
which the plate is boiled to every one Of the
plates around it. The JOINTS are broken as the
plates are welded together TO give additional
strength to the cylinder. AS fast as the cy-
Under Is advanced the masons follow and
line it with 8 wall OF hsrd-burned brick 2
feet In thickness laid in hard cement. -Four
classes OF men are employed in building the
tunnel-mners, welders, laborers, and ma.
sons. At the heading the miners advance
with pick and shovel, the welders bring to-
gether the iron sections, the laborers dis
pose OF the diggings, and the masons throw
up their brick wall.
Dejarnettc Before The Court and Sent
On for Trial.
DANynLE, VA, July 21-James Dciar-
neite was brought up for preliminary eX-
animation before the Examining Court this
morning, charged with the murder OF his
sister, MolIie Deiarnetie, in this city, short
time since. Counsel for prisoner waived
an examination, and Deiarnette was re-
committed to Jail for indictment and trial at
the next term OF the Corporation Court OF