Idaho semi-weekly world. [volume] (Idaho City, Idaho Territory) 1875-1908, 1876-04-28
THE CALIFORNIA GIANT QUARTZ xIlL

THE CALIFORNIA GIANT QUARTZ MIII.
As every owner Of ) quartz ledge
in Idaho contemplates purchasing 81
mill some day, sooner or later, We
deem the following description Of the
California Giant Quartz mill, taken
from the Sacramento Valley Agricul-
turist, Sacramento City, Of, sufficient
Importance to publish entire. It il g
new mill, Of California invention, and
is said to be the best yet made for re-
ducing gold and silver ore. It is the
kind that Messrs. Walker B Kimmel
propose TO erect on the Eureka ledge:
We are pleased to notice that
Messrs. Cowlcs & Cooper, Of this city
have patented aud are now building
the California Giant Quartz Mill,
which is the best, in our opinion, yet
invented for reducing gold and silver
ore. Its superiority consists in the
following points:
Great simplicity Of construction and
durability. 1t grinds as well as
crushes; the crushing and grinding
wheel weighing . tons or $4,000
pounds.
The exceeding fneness with which
liz crushes and grinds and great guam
tity-pulverizing from IS to so tons
Of hard Hint quartz per day through .
No. so screen.
Tie small expense Of running, no
wear and tear. and it requires but
from six to eight horse power to drive
Lit
II grinds to an impalpable powder,
and consequently saves more gold and
silver than any other mill process
known, as it cleans the metals Of OK
ides, making amalgamation easier;
the smalgamation is commenced in
the crushing pans. /.
The shoes Of the crushing wheel and
the bed-plates are made of hard cast
steel, and will wear for many years
without replacing. :.
The ease and comparatively small
expense with which the mill is trans
ported and set up.
Il can be run by steam. water or
horse power, il the first two cannot be
obtained.
Il crushes, grinds, and gets rid Of
the pulp Of many kinds OF rock, ce
ment, or gravel that cannot be sue
cessfully worked by any other mill
process known.
The price Of the mill is but $4,000
and is the cheapest and best mill ev
er manufactured, as stamp mills OF 'tf
|capacity would not save as much met
al and would cost over $50, 900, anc
then the wear and tear and running
'Iexpenses would eat up all the profits
especially OH low grade ores.
4 This Giant Mill will soon pay for it
self in the running expenses, besides
saving more gold or silver.
i The shear in the grinding wheel
with its 8 tons weight on . onc-hai
inch bearing Is inches wide, is wha
makes it grind so fine, and its l6,OO'
pounds weight crushes the hardes
J rock without lifting up the crushing
. wheel, though it is arranged to lift u
without interfering with the gearing
in the least.
Il has heavy plows, rakes an
. smashes, or agitators, which set ri
) of all the fine pulp as fast as crnshe
and ground, whether it be hard Q
|. .. soft quartz, clay, cement or gravel:
. This Patent Giant Mill has receive
the approval Of all miners and the bea
mining experts in the State.
Il Il works without any disagreeabl
noise; it is a pleasure to run It; it'i
: easily portable, and if one mine doe
not pay It can be removed to another
III viii take the place Of oil kinds (
mills now in use, because i soon pay
! for itself IN the running expense,
without taking into consideration TIE
liz saves more metal.
The secret of It's great snccess
this: That ia getting . crushing On
grinding wheel into such matnmot
proportions and gearing It By THE i
lrenious patented method. - = !
! ldriye It similar TO an overshot wate
4 wheel; there Is - feet of ievernge |