Evening bulletin. [volume] (Honolulu [Oahu, Hawaii]) 1895-1912, 1901-11-30

Company of Milwaukee, the Risdon Iron
Works Company being the contractors. The
building was erected and put together by
them, the mill building and the arrangement
being designed by the Risdom Iron Works
Company.
Machine Shops.-In addition to the mill
plant there Is also a separate coalburning
plant, which furnishes the power for the
machine shop and electrical department
when the mill is not in operation and devel.
oping steam from bagasse. The electrical
machinery consists of a marine type direct.
connected dynamo of the General Electric
Company, pattern of 500 lights, arc and in
candescent and a small Ball engine, with
belt-driven dynamo of 300-light capacity as
supplementary. From this engine the pow
er of the machine shop is derived as well,
and from the motor In the blacksmith and
carpenter shop building. situated some $50
yards distant, power is had for woodwork
ing and blacksmithing tools In these shops.
In addition to these works there are ware.
houses and store rooms as well as the
main office situate In the vicinity of the
mill building.
Pumping Piants.-There are also three
pumping stations In operation. two situate
In Halawa valley. No. / station consists
of Risdon triple-expansion, modern. up-to.
date Corliss valve-gear pumping engine de-
liverng 2O.00O.OOO gallons per twenty-fOur
hours to 65-foot head, and in No. 3 station,
situate some 500 yards distant from No. l
station. there are two high-duty pumps, one
triple Corliss valve-gear engine working to
a 3OO.foot head and one to a 19O-foot head,
the former delivering 100000 gallons per
twenty-four hours and the latter 100000
gallons per twenty.four hours. Therefore
from this one valley there are some 36O0O,.
900 gallons OF water being drawn daily from
the artesian system. Distant from these
pump sites. In what Is known as the Wal.
malu valley, some three miles, there is a
further pumping station, classed as No. 2
pumping plant, which consists of one H.
5OO,000-gallon and one 7,500.000.gallon triple
Corliss pumping engine both engines being
placed In pit some forty feet below the
surface of the ground, with the boilers on
the surface above These engines. like the
Others we're made by the Risdon Iron Works
Company Of San Francisco. and are high
duty. tripleexpansion, horizontal Corliss
valve-gear pumps, with all steamsaving de.
vices. In the No. Q and No. 8 pumping sta.
tons the Heine boilers are In use. while in
the No. station two Of the Babcock & vii.
cox boilers are In use. The work OF con.
struction Of further plant 10 In progress
In this Waimalu valley, some $50 yards dis.
tant. There the company is contemplating
the installation OF two $500, 000-gallon hori.
zontal type expansion pumps which will be
set In a pit some fifty feet below the sur.
face. with Heine boilers situated on the sur
malu valley the plants resemble more par.
ticularly large mining propos. lions because
Of the extensive underground work, in
the nature Of drifts and tunnels to reach
the artesian wells, 1t being necessary to in.
stall these pump plants at such locations In
the valleys as will permit of as short lengths
OF pipe lines for the deliveries as is pos
sible. Therefore the necessity of setting the
pumps In pits below the surface of the
ground In order to connect to artesian wells
below the static level in the said wells,
which averages about twenty feet above
sea level.
From the foregoing 1t will be seen that
all the power plants of the Honolulu Plan.
tation Company have been concentrated in
three locations; that of the sugar factory
and general works at Aiea, and those of the
power and pump plants In Halawa and Wal.
malu valleys. From the two valleys where
the pump plants are situated the lands are
irrigated. The pumping plant which is now
under way will consist of two 1900, OOO-gal.
lon pumps, which when erected and com.
pleted will make total pumping capacity
OF 7O,OOO,OOO gallons per twenty.four hours.
there now being pumping capacity equal to