The Salt Lake herald. [volume] (Salt Lake City [Utah]) 1870-1909, 1903-09-13
NEW GoLD-sAvING MACHINE.
Salt Laker Has an Invention That
Promises Much in Its Field.

Promises Much in It's Field.
a new and novel gold saving machine
has just been completed and has been
on exhibition in this city for the past
several days. II is novel in this that il
saves the finest of flour gold, or fla lSe
gold. as well as the COarser particles, by
mechanical means alone and without the
aid of mercury OF amalgamated plates,
and equally as we'll with clean or with
rusty, coated, or slime covered gold. The
inventor, Charles O. Michaelseu, who re-
sides at 4 Denver court. has spent twenty
years i'm mining, and for years has been
experimenting with the question of flake
or floating gold. Being a practical ma
Chiuist he was able to build the machine
himself and ne has made repeated tests
with placer gravel and pulverized ore
from lodges that have surprised and as
tOnishcd those who have Witnessed his
work. A saving Of 90 per cent from talcy.
greasy ore from Snake river gravel is not
OverstatinE the amount saved.
A company has just been formed to
build and operate the machines. The
company is Incorporated for 100000 and
has the backing of some good, Substan-
tlal people. They propose TO operate and
save gold where others have failed, as
the machine will handle anything In free
milling state. whether tale or placer
sand, regardless Of oil or mineral shines.
The working Of the machine is on the
principle of centrifugal force combined
with vibrating motion. The machines
mechanism is enclosed in an upright
chamber where the pulverized ore or
sold bearing sand is fed into hopper
with enough water to make it move free
~ Tt is thus carried onto a distributor,
Whcr cit is separated by vibrating car
riers and is then fed TO the bottom Of the
machine. where il is equally distributed
by rotary motion to the agitatOrs fas-
tened to a central cylinder. The bottom
of the machine is In the form Of a large
gold pan and iu that respect goes back
to first principles. combining with the
old gold pan principle mechanical move
ments operated and controlled within the
machine.
In conducting tests with his machine.
Mr. Michaclsen has permitted those who
have been inves tigatinE its merits to take
. their ores or sands to him In any shane
they pleased. Collaborating quartz has
been ground up. mixed with oil and other
substances that were calculated to make
[ a saving OF the values difficult. but under
all conditions he has been able TO cut
sO'close to the assay value Of the mate
rial given him that his work has been
characterized as q little short Of mar
VelOus.
While the machine viii handle q large
amount OF sand or pulverized ore I'm one
day. its mechanism at once conveys the
idea that its chief value will be found in
its use as a secondary or finishing Oper-
alton. For example. Il would take the
product Of a concentration or ordinary
and collect the values thus obtained in
I a practically clean state. The machine
/ IS not so large but that il can be taken
most anywhere IN a wagon, and it's con-
structiOn is so simple that one horse could
supply power enough TO run q dozen Of
I them. If they were connected mp.
The machine gives promise Of revolu-
I tionizinE gOld-saving methods. particu-
| larry on the rivers and streams where
I the metal Is found I'm the sands