Rutland weekly herald. [volume] (Rutland, Vt.) 1859-1877, 1869-06-17
a Hole Eight Hundred Feet Peep
4 NEW BORE.


NEW BORE.
The Colorado Register gives an inter-
esting account of a new drill, working by
steam, with which it is proposed to bore
a hole through hard rocks not less than
eight hundred feet deep. The following
account is of interest to all engaged IN
mining operations:
sBy recent valuable mechanical appli-
cations to the driving of diamond drills
most remarkable results have been OBJ
tanned. For long time diamonds has
been used in dressing mill stones and hard
substances, and few years ago distin-
guished French engineer, Monsieur Les
chot, conceived the idea of drilling i'll
mines and quarries by the direct applica-
ton of pure carbons."
" His invention was sold for large sum
in the United States, TO company organ
lied upon n basis of some millions Of dol
lars, situated in New Yoak, but from a
singular want of mechanical skill upon
the part of the directing officers OF the
company, no successful results were ever
obtained, and the diamond drill project
soon became classified with the impractic-
ables but within a comparatively late
period the rights of this company were
purchased by two ingenious New Eng
iandcrs, W no soon, by a few mechanical
appliances, put the diamond drill in sue
cessful operation, and during the past
few months a number of the machines
have been working in Massachusetts,, YER
mont, Connecticut and Pennsylvania.
The principle il a very simple one,
which we will briefly explain to our read
ers. The power employed i from three
to fivc-horse power, the engine, an oscil-
lator, j. upon cast iron frame, which
also suStains an upright boiler, smoke
stack, shafts of hydraulic pipe, sustaining
driving gear, &c., the whole weight about
three thousand pounds. The drill proper,
passing through a screw shaft, consists OF
a tubular bar, make OF common gas pipe,
with steel or composition boring head,
also hollow upon the end Of this hollow
head are embedded a number Of black
diamonds, or cheap carbon-, which are Of
quite moderate value compared with the
brish, and sparkling brillants which en-
Ielli-a the toilets # our fair bellies.
These diamonds cut the path, while
other, placed upon the outer and inner
peripherlcs enlarge the cavity. admitting
If he free passage of the drilling bar.
Tie drilling bar j. rcvolvcd, with slight
pressure. regulated 10y feeding screw.
from four hundred TO eight hundred
times ID minute tho result Is a progress
depending upon Tie quality Of Tive mate
rial bored
I'm ordinary marble -four to six inches
per minute arr easily cut, but whatever
rEa material, hr II ever so hard, Of quartz.
Hint. or even steel. it must yield before
the keen cd.se ri tho hardest substance
substance Eiowm in the arts. | pom one
experimental trial thirteen inches per
minu,. were made IN the Vermont mar
bio. ucar Rutland
BY the Use If hollow drills perfect
core j. obtained of the material entered.
aud the most singular feature j. the abili-
" oft tn. dritl - extract successive
Feusth~ ct p,ie. which are firmly screwed
together
Tho pipe being lollow, water is forced
through continually by a small steam
pu1ulr. connected with the main engine,
which discharges itself between the dir.
mguI teeth carrying all the fine grit and
boring outside the pipe 20 the point of
COMMENCEMENT. TIL, feeding gear of the
I drill l. 50 regulated as To CORRESPOND ",''l'
. the hardness UI the material L9lug bored.
/ slipping harmle~sly but at a sure though
more moderate rate when an unusually
hard substance j. met BY testing ma
chimes now used in vermont, uom one
hundred feet to three hundred feet are
taken from the marble qurries. These are
from AN inch and a half 10 three inches
In diameter. as required.
In connection with the same machine. a
solid or convex head i used in driililg
for blasting purposes. or 10 find coll-bcds
or oil this can be driven from eight hun
drnd tc one thousand feet; OF course 10y
tli- head DO core Is obtained: a machine
j. now making to bore with the solid head
hole six hundred feet in length, seven
inches IN diameter. 10 llherate tie water
otmi ycntilate a mine.
W. may congratulate our readers by
the intelligence that this drill is 10 bc i'm
msdntely introduced in this territory.
the owners uf the same McssrS. Severance
~ Holt having contracted 10 run a test
hole ui'h the eagr drill the Immense dis
ttnse ot eight hundred feet. which j. eN-
pca,cl by the cpLtractYr- 20 bn finished in
from thirty 70 forty days from the time Of
comm unemcut.
d. Iti- contract Is made with !. L. Whit
nay. aur l.t. Commissioner 10 plri.. the
test huir tn ie ran from the end Of the
tunnel owned by the Bullion consolidated
and rho lucl- silver Mining Campanic-.
in Fletcher Mountain. Summit county.
TIi- .a'my. lr- now been driven almost
necessarily for nearly three years hg hand
labor. aIiI h. now in some six ar seven
hundred ia.t. This will give some ti-
teen hundred feet Of dcvclopcmen', and j.
expected 10 show the nature and quality
81 ore taken from seven or eight veins
from depth beneath the surface Of one
+ Thousand sud twelve hundred feet. This
viii give q practical demonstration II the
value at the silver mines Of that locality
beyond all ,4,il. The companies 81 which
Mr.. Whitney Is treasurer, being in foscs-
sion of large working capitals, We may
expect from their enterprise most Valu-
able results. The contractors Of this labor
or their agents will be in Colorado by Ju-
~ LIST, and il is quite likely that any par
ties desiring their service for draining or
experimental run, can secure them. For
this contract steel pipes of great strength
are being made. At Fletcher mountain
tunnel compressed air will be used, com
pressed at tho mouth of the tunnel, and
conveyed TO the drill by pipes. For or
binary tunnel work or shaft sinking,
three or for Of the drills can be worked in
"a space of six 10y six with compressed
air.
The EXECUTION OF MILLER, THE
MURDERER.-Friday, 2jth instant, be-
tween tho hours of eleven am and pm,
is the time appointed for the execution Of
Hiram Miller, who was for long time
confined in the Rutland County Jail for
the murder of Mr.. and Mrs. Gowen, of