El Paso herald. (El Paso, Tex.) 1901-1931, 1912-05-01
MINING NEWS
EASTERN MEN BUY CASTLE DOME:
INSPIRATION PLANS IMPROVEMENTS

Copper company. IS making a visit of
inspection to the mine and speaks op-
timisticalIy of its future.
The $40 foot level IS looking re-
markedly good. the ore being opened
Up by the development work now In
progress having copper content fully
up TO the average for the ore body. 1
have never estimated more than so feet
OF ore below this level. but am conf
dent that il viii extend much deeper.
and when the time comes a crOsscut
viii be driven from the main shaft on
the 40 foot level
unexpected ore is being disclosed
on the 400 foot, or present EXTRACTION
level On all the levels above, the
northern limit of the ore body mas
been determined by an approximately
east and west fault but on the 5ZU
foot level a drift north through TINS
fault has passed through clean ore Ior
4 distance Of 100 feet
Seven shrinkage slopes are IN Varl-
0us stages of operation above this
level one is completed and Is 1ull OF
broken ore. mining is being carried on
I'm three of them and three more are
in the preparatory stage. AFTER Ine
stones are finished and filled with
broken ore the pillars viii be re-
moved by tOp-slicing, at the same time
drawing the ore from the Slopes SO
that the Gaping viii settle evenly
Conditions NAV arise that will permit
notifications of this method, such as
blasting the pillars and weakening
them so that they will crush and then
drawing off the ore from the Slopes
and pillars at the same time
The cost Of mining for last year, as
shown in our annual report was Sl-zl
per ton. II might have been 40 cents
less If we had desired TO mine waste
fully and without regard to the satety
of the men. The excessive cost was
due to the large amount OF square
setting and top slicing that was zone
around the top and sides OF the ore
a-lF ffnH-r In
Of timber between the Gaping ana the
ore. From many years experience IN
similar large ore deposits can sas
unhesitatingly that il is absolutely I'M
possible 20 mine the ore S SlSali -
with safety to the miners without plac-
ing a timber mat between the ore anu
producing 100000 Pounds Monthly.
production is at the rate OF hoL
quite 5000. 1000 pounds Of copper PEI
month. but we hope to soon bring IL
I'D to thatl figure. In the concentrate
the Deister tables are doing eNcelieHt
work but there Will be some changes
made i'm the crushing machinery me
Hardfnge pebble mills have demon
strated their superiority over the ChiI7
can mills for fine grinding ana VIII
Droba bly, eventually replace them III
all units 1t is also probable that the
rfqfd rolls used for the intermediate
crushing viii be gradually replaced Dy
heavy spring rolls In all units ne
TraylOr Engineering company IS Duliu-
inc for Ms an unusually heavy set OF
sDTfnar rolls They VIII be OF the same
size as the spring and rigid rolls now
in use 10 inches by ~ inches, oul
will have a much more massive frame
and heavier construction seven
CrOcker-W Wheeler $50 horsepower mo-
tors have been ordered, TO replace the
100 horsepower motors now used In
driving the rolls. Hardinge bail mills
have been tried out against the rolls
but have not thus Tar proved equal 10
them Their steel consumption IS ap-
Darentlv greater than that OF the Tolls
No 20 Cent Copper Yet
IT do not think that 20 cent copper
will be an event Of the near future, as
some are predicting but can see no
reason why IL should not hold flrm
around IS cents for some time to come
The only possibilities in sight Tor a
large amount OF new copper are the
TanEanyikA fields in Africa, and II Will
be many years before they Will ma
.eriaIly add 10 the worlds production
believe the discovery Of any more
Important deposits. in this country at
east, viii be the result of careful geo
logical work and deep prospecting A
good business revival viii mean an in
creased demand for the metal and a
probable consequent increase In the
price Consumption IS keeping pace
with production and this condition will 2
pro bably continue for some time TO
come large rise In the price Of
copper viii be accompanied by a vOlun- I
AIRY Increase in wages Of the men en- D
Dloyed in the industry"