El Paso herald. (El Paso, Tex.) 1901-1931, 1912-10-05
MINING NEWS
Briggs Shaft of G. & A. to Be
Sunk to the 1900 Level;
Utah Miners Expected.

Bisbee, Ariz., Oct 5.-Important an
nouncements of Improvements in the
ventilation system of its Bisbee mines
may be expected soon from the Copper
Queen company. A system is now be-
ing developed and evolved that will be
put in operation as soon as completed
and will effectually solve this problem
Even in Bisbee it has not been gen
orally known that the Copper Queen
company has an ''air expert" here en-
pIoyed to devise the best possible ways
and means for purifying the air with
in the mines thus improving the health
conditions of the men who work IN
foreground The mines OF this company
have never been considered bad by
men familiar with underground con-
ditions, but the company has started
work before such conditions arise and
is to adopt preventive measures rather
than remedial Such plans are not by
any means completed, but it is learned
that expensive machinery viii be re-
Quired it being reported than one sue
ton fan that is to be installed viii
have a sweep of 30 feet
The developments will prove as in
teresting as anything that has been
undertaken in the copper mines of the
southwest and will mark another step
in the effort Of making the conditions
Of underground workers as comfortable
and healthful as possible.
Plans have been made to sink the
Briggs shaft of the c. and A company
to the 1900 level. At present the work
below the 1900 has been in q raise, but
the shaft is to be put down to the 1900
level and enlarged so as TO permit
hosting. In this way they will be able
to work below the ore body that is now
being worked on the 1900 level and IN
the raise below This ore body is be-
IeFed to be one of the largest ever en-
countered in the district Its depth is
L. oh
to below the 400 and the officials are
confident that they will find large
deposits on both the 14th and 18th lev
els when they begin to stope- Below
the Briggs, 500 feet south of the shaft
there is a body of good ore, long but
not of great width, that has been
blocked out and IS ready Tor stoplng
and shipping when required. This body
is large enough to last for consider
At junction Shaft.
At the Junction a good body of sui
phides was encountered in the past
week It has not been explored to great
extent as yet, but the ore is declared to
be of good character and to be a high
grade sulphide.
only preliminary work is as yet be-
ing done in putting the concrete in this
shaft A quarry is being opened up
on the hill and molds are still being
made and prepared to be put in position
for filling when that stage OF progress
shall have been reached
Enlarged Output Possible.
That the contract with the Shattuck
would enable the c. and A. to increase
its output has been known, but there
has been considerable surmise relative
TO the greater amount of sulphide ores
the Shattuck ore would permit of re-
duction- It is learned that the 200 tons
of Shattuck ore of the oxide character
will permit of the handling Of an equal
amount of c. and A suIphides, that is
the output will not only be increased
by the metal content OF 200 tons of ore,
but of 400 tons as regular shipments
shall be begun Such shipments will
continue at 200 tons until the new c.
and A smelter is completed when it
will be increased TO 400
In the early days of the Warren dis
trict mines the proportion Of ores as
mixed for reduction was two of oxide
TO one of sulphide As the latter ore
came into preponderance that percent
age was reduced from time to time IN