Gold Hill daily news. [volume] (Gold Hill, N.T. [Nev.]) 1863-1882, 1879-06-03
The Robertson Furnace.
Reno Gazette, Nay 80.

Keno Gazette, Nay w.
On the corner OF 3lst and J streets,
Sacramento, Mr.. Robertson and his
partner have erected o sst OF their pat
snt electric works for reducing ores.
These consist Of Q furnanos and oven
combined, Q rock breaker. . bath, o pan
and assttlsr. The patent covers the
combination OF chemicals and their sp-
~plication TO the ores In . red hot state.
The furnace 10 Of the ordinary style-a
FIRE arch opening at tho top Of the right
side into Q low. wide oven 10H inches
high, "A feet long. 8 wide, with four
port holes In each side, made fiaring,
10 that O rake can reach every part.
A ton OF ore at . time 10 poured In at
the end iurthest from the Are. and rests
there half an hour. II II then moved
six feet by hoes, and Q fresh ton takes
IT, place. After half an hour IL Is
moved another six feet, when IL lies
nsxt TO the ere for half an hour. and IL
then scrapsd through q hole in the floor
OF the oven into the bath which rests in
q tank on wheels. The bath 10 made by
dissolying one pound Of bluestons and
one pound Of cyanide Of potassium to-
gsthsr, and enough Of the solution to
represent . pound Of each 70 the ton
Of ore to be worked IL put into salt
brine sufficient to immsrss the red hot
ore. From the bath the ore 10 run into
the amalgamating pan and ground
around half an hour. Quicksilver Ii
then added and amalgamatsd 30 min.
utss, and the whole drawn Of into the
settler.
In addition to d~issolvipg the rock
there still remains the necessity Of chem.
cal changes sufficient to free the pre-.
cious metals whom they are buried in
lead antimony. iron, eto. Mr.. Robert.
son claims TO oxidizs the iron 90 that II
IL carried OF In the liquor. The lead
goes with the silver and reduces the
value per pound. The anthony IL driven
Of by the heat. II 10 - Volatile %
quicksilver, and when freed with Ito
affinity with other metals goes OF In
vapor. Sulphur. arsenic, vsrdigris and
all forms OF sulphursts are consumed by
the potassium the same O. tallow would
be by concentrated lys. The bath ID
claimed TO contain an electric charge
which effects the ores instantly. The
particles OF metal are cleaned and
briahtsnsd 20 - to have the greatest
possible annuity for quicksilver. This
will be plain 10 anybody who has ever
studied Q telegraph battery. The acids
prepare the xino for the quicksilver and
take Il up like paste. A great economy
10 effected BY the destruction OF verdi.
RSis, sulphur and arsenic, the loss OF
quicksilver IL reduced 10 . minimum, a.
these reduce II 70 its natural state and
Il floats OF.
Works are being built at Grass Valley.
Two contracts have been made Tor Bis
kiyou county. One at Georgetown,
Eldorado county, 10 being built now.
Two In Arizona. Tuolumns county has
been sold, but nothing done. Patents
cover the United States, France, Mexico,
New Zealand, Australia and Queensland.
Canada. and British Columbia. Con-
tracts are made on . basis Of Ave per
cent. royalty. II IL useless 10 express
any opinion on this business. There
are . great many good miners 10 differ
emit parts Of the country who take sum.
Gent stock In II 10 give Il . test, and to
those our readers are referred. lis one
thing 10 zee rock about which . man
knows nothing worked BY the men who
have devised the msthod and under.
stand every part OF Il, and another 70
see the process working rock out Of .
mine run By men who have no intsrsst
In u srcspt 70 GET ths metal out Of The
ore ehssply.