The Pioche record. [volume] (Pioche, Nev.) 1908-1925, 1915-09-18
Yuba Milling Plant
Ready To Treat Orc

A Record representative visited the
Yuba mill, now completed, and had
the pleasure of being shown through
this most complete plant by Presi-
dent A. Y. Smith and Mr.. j. w.
Furness,o ,one of the directors OF the
company, now visiting Phoebe to be
present when the plant starts grind
ing the ore from their property
above town.
In giving a brief description Of
the methods to be employed, Mr..
Smith said:
The mine proper Is equipped with
Chicago Pneumatic Tool Co. COM
pressor, 19x14, with capacity Of $50 It
OF free air at 100 lbs. pressure. This
machine Is run by Western GasEn-
CINE, of 100 h. p. capacity Below
ground the company Is using the
drills of the Denver Rock Drill Co..
furnished by Mr.. Scott of Salt Lake
and consists of three Waugh stopers
and two new hammer drills for drift
ing and sinking. These drills have
given splendid satisfaction. A trial
recently with Waugh machine.
Supt Parker, working in quartzite
! drilled eight 4-footr holes In an hour
and 20 minutes.
After breaking the ore in the
slopes and drifts it 10 hoisted to
the surface by a modern skip and
automatically dumped into q tram
car, thence taken across the surface
and dumped into q big bin located
on the Pioche Pacific Railroad COM
pany high line and thence down
grade 20 the mill, where 1t Is run
out on long tressle and dumped in
to the crusher bin. holding about 500
tens. Thence the ore passes through
sxl5 Plake crusher, passing hence
by elevator to the Marcy mill. This
NH IS on the order of a ball mill
and grinding is done through bat
ttry of large and small steel balls.
/ The grinding is done wet In the
Marcy mill, being fed to same aut-
omatically, and on passing out an
other automatic device takes a sam
pie for assay and analysis. The ore
then> passes through launders to the
new No. 10 Whitley tables which are
the latest word In concentrating
, machines; each having a capacity Of
about so tons per day of ordinary
concentrating material The con-
!, centrators extract the lead and heavy
! sulphide contents which Is eventual
[ ly shipped to the smelters as lead
concentrate product. From these
machines the ore passes directly into
the Trent Universal tanks, furn-
, ished by the Trent Engineering Co.
of Los Angeles and are strictly up
| to-the-minute in their uses for high
] extraction in the cyanide treatment
. of ores. The plant is also supplied
. with the usual solution, sump tanks
precipltating boxes; nothing seems
l to have beenoverlooked to handle a
i maximum tonnage at minimum ex-
pense."
Like the mine, the Yuba mill Ia
equipped with an 100 b. D. gasoline
| engine. At both mine and mill a
i special gas engine fuel oil will be
4 used, reducing the cost Of power
. much less than coal and steam can
E be furnished at this point.
The mill building proper, as well
, as the compressor and engine build.
: Ing at the mine. has been built un.
5 der contract by Mr.. ]. f. Morris
J. late of Los Angeles. but no resid
: ing here at Pioche.
y A record has been made all along
s the line in building this mill and
y installing the equipment at the mine
On July 18th, so days ago, the first
It dirt was thrown out on the mil
e excavations and now ON the goth o
2, Superintendent Monday-it is OK
l. pected that sufficient ore will hav,
been hauled down to the plant tt
Is commence active operations and 81
t. continue to the end of nine years
the period that the company has OF
ID tanned working lease on the Yub
n dixie and Meadow Valley fissure.
t. All the machinery has been trie
out ond found to operate without
)y hitch and the company Is certainl
ID to be congratulated.
e. Mr.. Smith states that very 500
to after getting everything starte
In good shape and working orde
he that the Yuba company will be
I'D condition to purchase large and sms
lots of both shipping and milling o.
and this arrangement will have Il
effect of materially assisting Il
u miners in marketing their production
The investment by the Yuba Lea
Ie- ing & Development company In tn
ie- district is matter. Of many thou
ck ands of dollars and certainly meal
re that these gentlemen know what tn,
be are doing and how to do 1t. IT
ey- Record feels confident that the {
bit forts of Mr.. Smith and associat
will be crowned with most gratif
ing success. /