Gold Hill daily news. [volume] (Gold Hill, N.T. [Nev.]) 1863-1882, 1880-03-12
which arc easily transported vh.r.

which are easily transported where
wanted.
South OF all the works . cooling pond
for the condenser Of the pumping engine
has been constructed, 400 feet long and
so feet vide. This Ii connected with
the shaft 81 feet below the surface.
Into this reservoir the water from the
shaft il pumped and thence raised. The
condenser il what 10 called Q gravitation
or waterfall condenser, the air which
comes in with the water being extracted
by q No. 8 double-aotins, steam engine,
fed by . A-inch gas pipe with q globe
valve. This engine also exhausts into
the condenser.
The pumps in the shaft are 14.inch
plungers with 8.foot stroke. Only a
single line is in use now. but below the
Sutro tunnel Lowell q double line will be
placed. The pump rods are l8 by l6
inches, and the sticks are from GO to 30
feet feet long, held together BY two iron
straps an inch thick and eight inches
wide ON two sides and ten inches wide
ON the other two. making thiHy.siI
square inches Of solid iron.
Work in the shaft IL now done BY .
pumphoist, which 10 sufficiently power
iul to sink to Q depth Of $500 or 5000
feet. When that depth Is attained, q
large, direct. acting engine will be put In
place. Chutss will then bs constructed
in the shaft, additional length OF cables
lowered and attached to those Of the
pumphois., and the work Of sinking 60
on from the new level a. from the sur.
face, the dirsct.acting engine being used
only to raise from the new level to the
surface.
At present the arrangements for rails.
ing and lowering heavy bodies 10 In.
genious. II . heavy body Is to DO low.
cred through the pump shaft. the big
skip 10 blocked up. the cable detached,
thrown over o smaller sheave below the
main line OF sheavss and thus the line
OF gravitation is thrown into the center
Of the unoccupisd portion Of the pump
compartment. II the body to be low.
cred Is comparatively light, . false
sheave below tho floor Is used to swing
the cable into line without being de.
tsched.
Every appliance Of the shaft Is oalcu.
lated for strength and durability. Tho
skips are OF steel and 1000 pounds
lighter than those generally In uss. As
these are constantly in use the raising
Of several thousands pounds per day is
saved. Besides, steel skips will last
much longer than those made Of iron.
Steel boilers are also in use and are
much stronger and moro durable than
those made OF iron.
The debris from sinking Is being util-
lied In filling in north Of the buildings
for q woodward. There are about the
works many co~nveniences which cannot
be touched upon in . general item like
this. but which are necessary and have
been placed with . view to economy and
use.
The work Of sinking 10 going steadily
forward /; total depth Of the shaft, 955
feet. The influx OF water keeps the
pumps running at two strokes per min.
ute.
There Is quite . little village around
the shaft, but buildings are kept ct u
distance from the works a. Q preventive
Of FIRE both ways.
The Forman shaft is owned and its
running expenses paid by the following
companies and in the following proper.
tons: Ovsrmsn, 30 per cent; Caledo.
mia. 20 ; lSeg. Bslchsr, A; Bslcher. %;
Crown Point, Is.