Gold Hill daily news. [volume] (Gold Hill, N.T. [Nev.]) 1863-1882, 1874-05-18
NJ. surIelqh prln and Alr .cenpre..or.
Rrom tie 8. y. Mining and Scientific Press,
MAY 16l

[From TIE 8. y. Mining and Scientific Press,
May i0l
IL ID only within the past two years
that the Burlelgh rock drill has been
In use on this coast, and only during
the past year that II has become % IA
verably known among us. There Was
Of course some prejudice against these
machines ameng the common miners,
who imagined that their places would
be declared vacant In favor OF machin-
cry. Like all labor.savinE machines,
however, when really practical, these
drills are now coming into very gensr.
al sse. The irst place they wsr. put
In operation on this coast was NJ tns
Yellow Jacket mine, Gold Hill, anu
the favorable results attained there In
duced the Bslchsr mine to adopt them
also, aud now quite q number Of mines
are using them.
AT the yellow Jacket mine In Ne
yada, they arc using u No. . pump,
and ons 5xl2 engine, run By . NO. :
air-compressor. At the Belcher they
have four drllls alss. two mining AND
two Stopping, run BY q Nc. compress
sor. This same compressor runs TIVE
7xl2 engines which hoist about lou
tons per day from the lower part o.
the mine. At the Gould s Curry they
have two mining and two stoplHg drills
and enc double.geared 7laxS engine
which are ran By 4 No.. compressor.
In tho Consolidated Virginia mine
thew have two STOPPING drills. At tins
mine they are new engaged In putting
up a building In which to set up a
Burleigh air-compressor. The COM
pressor will furnish air for running a
25.horss power engine Ia the lower
leysls-whsrever IL may DO required
and also several Burleigh drills. The
compressed air now used In the m,ne
for running drills Is brought In q pipe
all the way from the Gould q Curry
works. The Ovcrman has q No.
compressor aud W. mining drills. Ia
the Sutro Tunnel they are using =.
OF these drills and IL moro have beer
ordered. Some Of those are mining,
some stopping. and some jumperd drills,
They use q No. ) alr.compresser u
drive the drills.
In California, the Mariposa Mining
Co. are using one mining and two tun'
mel drills with two No. 2 and one No,
4compressor. Attic Gold Run Ditch
aud Mining Co. they are uslng three
tunnel and enc mining drills, and q No
9 compressor. At the Cedar Creek
Mining and Water Co. In Placer eoun,
~, they have No 2 compressor and
two mining and n tunnel drills. Al
tho Idaho milne, Grass Valley, they
have a No. 4 compressor, and foul
mining drllls have recently been ship,
ed there. At tho Little Emma tunneI
In Utah. two mining drills are in oper
ton. aud they have sent for three stop
Ing drills.
Many Of these companies have du
plicated their orders, showing that the
machines give satisfaction. In tunnel
Ing mt the Gold Hill Ditch aud Mining
Company's property BY hand. the av
erage progress was less than iye lee
per week, and with the use OF these
air. compressor and drills the pro
rress was Increased to from % to 81
feet per week, and that at q reduced
cost. At the Cedar Creek Co.'S tunneI
at Dutch Flat, they are running q
fume tunnel under the hill to tap thu
immense beds Of gravel 1900 feet In
The rock In Dutch Flat has always
BEEN known to DO very hard. the men IL
many cases having been paid go TO SlC(
per loot to run u small tunnel ox5 fol
a four.foot fiumc. With the aid o.
ono Of these machine drllls they are
now progressing at tho rate OF % fsei
per week, aud In this case will soon bs
able to run the flums In to com msncs
working from their fret shaft.