Eureka daily sentinel. [volume] (Eureka, Nev.) 1871-1887, 1882-08-30
NEW.
A New Departure in Working Ores
of Low Grade.

- hh OHeo
of o Grade.
Territorial Enterprise.
Below we give a letter from George G.
Phillips of Silver City, who has already
patented many ingenious and valuable in
ventions, in regard to his newly-invented
ore concentration and his method of reduc-
ing ore preparatory to concentrating:
SILVER CITY, Lyon County, Aug. 26.
EDITOR ENTERPRISE: If you or any min
ing or millman wish to see my wonderful
compound concentration at work, you may
do 30 between now and the 3Oth instant.
l say wonderful" as an apparatus that
will concentrate up to 99a per cent, and
without hand labor or machinery, for less
than one cent per ton, is a wonderful con-
centrator. If you or any other man will
bring 100 pounds of quartz sand and live
sulphurets mixed, 1 think that | can show
you that the apparatus will concentrate
closer than 99la, may be 99A per cent.
The apparatus is wonderful for its simpli-
city and its adaptability or anything else.
The exhibition is free. My plan of work
ing the Comstock low-grade ore is with q
pair of Cornish rollers four-foot diameter
and four-foot face. l can crush dry fifty
tons of ore per hour fine enough for my
concentrating apparatus. The apparatus
will take the ore from the rollers and dis
charge all the sand and deliver the pure
sulphurets in the pan without handling.
1t would require one man for the pans,
one for the rollers and concentrators, and
one for the engine and boiler, and work
1000 tons per day at a cost in labor of
$50, wear and tear $50, or five cents per
ton for labor and wear and tear.
GEORGE G. PHILLIPS.
We have not seen the concentrating ap-
paratus invented by Mr.. Phillips, but
from what we have heard (that it is q
siphon) have formed a very favorable
opinion of it. 1t requires nc great amount
of scientific knowledge to understand the
way in which such a concentrator would
work. 1t is we'll known that by means of
a siphon water can be raised to a certain
hight, dependent upon the altitude Of the
place at which the experiment is tried, as
the instrument operates by atmospheric
pressure. By means of the siphon We may
lift even SO heavy a fluid as mercury, but
only a few inches. At the level of the sea
water may be raised by means of the siphon
SO feet and mercury 80 inches. Now, by
shortening the siphon, it may be made to
such up sand, bits of rock and the like to
the hight of several feet-owing to their
specific gr%avity-and by making the leg of
the siphon still shorter it will take up iron
filings, and, making it shorter still, bits of
lead and shot, until finally it will carry up
Though to the hight Of but a few inches)
a metal as heavy as mercury.
Now it is not hard to see that Mr.. Phil
lips may 80 arrange the leg 1.-THE short one)
of his siphon, by means of a sleeve or
slides, as in a telescope, to very easily reg
ulate it to carry up pulyerized
quartz, sand, dirt and the like, and
not lift sulphurets or other heavy and
valuable material. Thus, it will be seen,
his concentrator ruus without hand labor
or the aid Of any kind Of machinery. All
there is to do is to feed it, there being
doubtless an arrangement at the bottom
for discharging the concentrations