The Grangeville globe. [volume] (Grangeville, Idaho) 1907-1922, 1910-10-20
GREAT PLANT
ON SALMON
United Placer Co. Just install
led the Best In Cen
trail Idado.

For the past three months there
has been quietly leaving Grangeville
every four or five days, freighting
outfits loaded with heavy machinery
for the Salmon river country 40 miles
siuth of Grapgeville; the last of the
machinery has now been delivered,
which has aggregated over one hun
dred tons, and the Installation of /
this plant lis about complete. 1t COM
prises the largest machinery plant /
of any in Central Idaho, and is ON
the property of the United Placer
Mines company, a corporation of Ore !
gon, of which Col. NJ. S. Hart is the
secretary and treasurer, and the lead
ing spirit.
pany consists of 500 acres of aurifer-
pany CONSISTS of 500 acres of aumfer-
Gus gravels, lying along both sides
of the valley of Salmon river in the
s vicinity of Lucille. In placer mining
terms it Is known as bench diggings,
being a deposit of an old river chan
mel, and local erosion, rich in gold.
This property lis famous for having
produced from it's old drift workings,
the highest grade of gold In Idaho
county and probably the largest mug
get ever taken out Of any placer de-
posit in Idaho county, it having a
value of $4,000 i'm gold valued at $40
fine.
The plant that is now installed con-
sists of a battery of two Flanner
water tube boilers of ESQ horse pow
er each. It comprises a Dutch oven
front, 1l2 4-inch tubes IL feet long
between the water legs, with 2-54
inch steam drums, made of 7-16 inch
nange steel, 10 feet IL inches over
all, having tensile strength of co.
& 900 pounds. The tubes ire No. 10
guage and water leg of " inch flange
steel These boilers have CRATE
surface of "a by 92 dnches and each
has an exposed heating surface of
249S square feet, tested to stand $50
pounds pressure. They weigh $4,000
pounds and cover a floor space Of
20 feet square.
These boilers will furnish steam
for a Reeves Vertical Cross compound
engine, made by the Trenton Engine
company, of Trenton, N. j.
This engine is set on concrete base
S6x83 inches, 6 feet deep and weighs
$4,000 pounds with $50 pounds
steam pressure 1t win develop ATS
horse power 1t has height of 15
feet above base, with crank pin 8
inches diameter, cylinders "a inches
long, 6 inch steam pipe and 10 inch
exhaust. The governor wheel Is 96x
81 inches, and win have a speed OF
225 revolutions per minute at the nor
mai capacity of engine.
This engine win be belted to a
Worthington single stage turbine
pump set ON a concrete base IA feet
high. Its shaft is IA inches in diam
eter. 10 feet 9A inches long, and to
tai weight of pump lis $4,000 pounds.
The brake horse power required
for this pump will be 1896, which viii
be developed on speed OF 500 revo
buttons per minute, and 1t will bHine
water from the Salmon river in II
inch suction pipe and discharge into
IA inch spiral rfveted steel pipe o.
No. IL guage. It's mfnimum capacit!
will be 5000 gallons per minute un
dsf a 200 foot hydraulic head.
The plant is designed with a ho
wen. which contains a 400 horse pow
er closed heater, vacuum pump TO
condenser and duplex boiler fee'
pump.
A 80 foot steel stack, feet In dian
eter will furnish draft for boilers, an
plant will be lighted by a 10 k. "
generator
The housing for this plant is
frame building 92x54 feet, covere
with corrugated iron sides and ma
thoid roofing.
The pipe line which leads dfrecu
to a No. 2 giant having a inc
nozzle, equipped with deflector,
spiral weld steel pipe IA inches i
diameter, No. II guage and WI
stand head of 400 feet. Approximate
ly AGO miners inches of water will b
operative through this nozzle, whe
pressure is equivalent to 200 fox
head.
II rs expected that actual hydraul
mining win be commenced in veI
short time and owing to the 10
altitude of Salmon river and its mi
climate, mining can be carried on t
year around.
The plant has been built under Il