The Salt Lake herald. [volume] (Salt Lake City [Utah]) 1870-1909, 1897-04-19

Ogden April 1S.-The new gold saw
ing machine invented by Henry At
wood of this city is attracting much
attention from practical placer miners
and from mining men generally. a. I.
Stone, owner of the Golden Slipper and
other claims in Snake river, sars that
the machine seems to solve the Duz-
zling problem of saving all the gold
even the flour gold. Mr.. Stone further
more ordered one of the machines for
his own use
Mr.. Atwood has proceeded very
quietly about the matter, working out
his idea year after year in the quiet of
his own home or his prospector camp.
Now. however. the patent has been
granted-went through without hitch
in about Il months-and in two weeks
the machine viii be on the market. lis
simplicity Of construction is one of lis
greatest features. The whole machine
VIII, weigh little more than 100
pounds. and the most expensive kind
VIII cost only $3.50. Such machine VIII
handle - cubic yards Of dirt per day
and VIII require only 100 gallons of
water The machine is so adjusted
that the gold is separated by a rocking
enough water TO damDen the sand is
required.
The dirt is put in 2 receptacle ar
ranged with a system Of screens which
separate the gravel and valueless soil
from the pay dirt. allowing the latter
TO fall on pan arranged with rifles
The screens can De adjusted so as to
conform TO the kind of ground being
worked.
While in the screens double spread
pipe distributes the water over ii even
ly-the same motion which agtares
the rifle and screens also agitating
the sprinkler.
Thus we have the pay dirt dampened
ana screened on the rifle. These rifles
are constructed concaVe toward the
screens. Each one is constructed with
mathematical eXactness computed from
the length of the crank which agitates
the rifle box. The quicksilver remains !
IN the rifle and. BE- reason of another
device described below. does not crum-
bic or flour" Thus the gold by the
motion Of the rocker which. by the .
way, does not rock but moves evenly /
forward and backward-the gold is
brought constantly against little walls /
OF quicksilver. The black sand. instead I
Of going down over the lower end Of (
the rifle. works upward and falls from /
the upper end of the same. Thus the I
black sand can he saved clean from
other material. This however. is not /
considered Of value by Nh. Atwood, as
the black sand. he maintains, viii be of
little value after tTaVersing his rifle.
The pan in the rifle can be detached
in less than a minute when cleanup
time comes.
Now as 10 why the quicksilver does
not break into particles. which is per
haps the most important feature about
the machine. Mr.. Atwood has invented
a chemical preparation or method of
charging the riffle-which is made of
copper. This creates an affinity between
the pan and the quick" Just as be
w cen loadstone and magnet. The prep
aration can be apple 10 any suo-
stance. wood or glass. for instance.
Charge smooth wood panel with il
and stand the panel perpendicular. hurl
some quicksilver against Il and it clings
10 the panel. The same principle viii
allow The quick in the rifle 10 project
up higher than the rifle itself without
becoming dislodsed.
Mr.. Atwood says the machine is es-
a poor mans machine. by
reason of its cheapness and its light
ness. One crank motion operates all
the mechanism. which is carefully
from dirt. 1t can he taken 10 (
pieces easily and set up anywhere The !
machine has been patented with all its Z
devices in United States. Mexico and {
canada. Fifteen machines are in pro- !
,ess of construction by Mr.. Atwood 5
ma sir. Reed. who has purchased an :
interest in the patent and viii look af- {
.er the manufacture Of the machines \
The working model OF the machine i
s al Mr.. Atwood's residence, PA Twen I
v-first street. The larger machines r
ire nearly completed and awaiting the I
harged plates. which are being. con- t
trlcfpd in Ohio =