Weekly Arizona journal-miner., 1904-07-27

of the distance the pipe passing
through cold water jackets. They are
finally discharged into fire proof bin
ON top of the mill and there the cool
ing process is completed. 1t drops
from this room into bins from which
it is fed into the magnetic sepaIators.
These machines are also wonderful yet
simple devices, and combined with
the Dimmick sizers are the secret of
the great success of the mill. These
two features stand out with great
prominence in the work of success
fully treating the rich tailings that
heretofore have been valueless because
of the inability to economically and
successfully extract the values from
them. After the concentrates have
been discharged into the separators
they pass in thin layers slowly over
an inclined plane just below three
revolving canvass belts. Just above
these belts are strongly charged mag
nets and as the concentrates pass over
Z
! the incline plane and under the belt
/ the magnetic hon is attracted by the
magnets and lifted up to the belt.
This carries it until it is from under
/ the influence fof the magnet when it
is dropped into a receptacle and from
there carried into hopper where it
is wheeled to the cars and ready for
shipment to the smelter. The zinc
and other materials that are left are
caught in sacks as they leave the sepa-
rator. and the zinc being from 90 to
60 per cent. pure is ready for the
market and has value of about S28
per ton.
! The concentrates from the ore
ran high in zinc and after freighting it
to Prescott by wagon and then by rail
to the smelter and paying these heavy
costs it became a penalty to the ex-
tent of SOC per unit at the smelter
where now, under the new conditions,
it is put into separate product and
will more than pay all costs of opera
tion.
One of the important features of the
new plant is the plan for saving and
REFUSING the water. The scarcity of
water has been great drawback to
many good properties in this county
and there are some wonderful proper
( ties in the Bradshaws that Rave
suffered great loss on account of not
having sufficient of this necessary
fluid for running reduction works,
etc but this has not caused any
trouble at the Crown King and no
trouble of that kind is apprehended.
! The mill as it is has been saving
fully so per cent. of the water used
and it is expected to increase the saw
ling to 90 per cent
! In conversation with General Man
ager George f. Shurtleff, the reporter
was informed that all plans had been
perfected for beginning work on the
big tunnel on the property of the
I Crown King Mines company. In fact
some of the preliminary work had
been done. such as clearing away the
timber and brush from the mouth of
the tunnel and in few days actual
work will begin with a good force of
men and the work will be driven
ahead with all possible haste. This
4 tunnel project is one of the most i'm
portant that has ever been undertaken
in this territory. 1t will start into
the mountain i few feet above the
railroad track about a mile north, of
the mill and ore bins will be built so
that the ore can be dumped from the
cars into the ore bins and from them
loaded directly into the cars of the
Bradshaw Mountain railroad and
hauled to the mill.
The tunnel will be driven in at least
1000 feet and will cross eleven full
claims belonging TO the company and
cross cut fifteen ore veins which
crop on the surface, some of them be-
as l25 feet. Some of these Lodges are
continuation of the Lodges on the
Bradshaw Mountain copper Mining
and Smelling company, which are
known to be so rich and the surface
indications where the big tunnel will
tap them, are equal to those on the
above property. The tunnel will tap
these lodges at depths of from 800 to
/. 800 feet, and will connect with the
old workings of the Crown King Min
ing company at a depth of about
l, 300 feet, or 500 feet below the
present depth of the old shaft. This
shaft will be sunk to connect with the
tunnel and it is then proposed to con-
tinue he tunnel about l,50O feet in
or der to tap the ieuges of the Wild
flower, Old Reliable, Eagles Tail,
Contention and other we'll prOVen