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Collection: Books and Periodicals > Mining & Scientific Press
Volume 12 (1866) (428 pages)

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Page: of 428

A Fournal ot alseful Arts, Srience, and Wining and echanical Lrogress,
DEWEY & CO.. PUBLISHERS
And Patent Solleltors,
(Neu Oe XI,
Number 9. / SAN FRANCISCO, SATURDAY, MARCH 38, 1866.
"TABLE OF CONTENTS.
A.W Wall's Patent Dry Pulverlaer—Eluetrated.
Experlments wlth Sodium)
Amalsain ls Gadd Ores,
Llvetrletty the Causo of;
Karthywokes.
The Troctory Curve nnd the!
A Slngutar Splder.
A Condensed Ulstory of
Steam.
A Bonutlful Mlustration of
Lite
loms,
Lide Children,
y reties of — Geluddog. Kind Hoartednessn Children
Haevo. 3. oye ponte ai a
ur Degnlar Cor /Ediiortal aid Selected.
Nae Muilig Sharetiolders’ DirceThe slite Caplta) Wulldlng. . tory.
Abother Mating Schol Stock Sulea and Reporla,
{ Iam-. san Fratelseo Prices Current
New Miping ond Other Adverliseents, etc.
The Ol Frospects o
boldt,
Calitorvia Made Bells.
For the Colurado.
A, W. HALL'S DRY PULVERIZER.
Tho necompanying engraving represents n
novel mill for pulverizing ore to no impalpahle
powder in n dry condition; und from the reports of its practien! operation where
it is now in use, nt the New York
Quartz Company’s Works, 48 East
Twenty-sixth street, New York, it
appears to be a suceess.
The geueral design of the maclhino
is, to pulverize ore, or other material,
in an air-tight chamher, aud separate
the fine from the coarse by blowing
it out into n receiver, by means of n
fan blower. Iu this way the fine
particles, ns fast as produced, will be
euried olf, leaving only the eoarsor
purticles, to be further operated upon .
Ly the machine.In this machine the Chilion wheels
and the Sponish norrastras are euiployed in nn ordinary enst-iron pon.
The crushing surfaces ot the wheels
and arrastras are made convex, with
a corresponding concave valley in
which they travel, the working surfaeces being of Franklinite iron. A &
domo, B, of sbeet-iron, is made to
¢over the crushing ond pulverizing
apparatus, nnd secured to the flange =
of tho pan, allowing space for the
machinery to revolve. ‘Iho moterinl
to be crushed is led into the maehine
through the hopper, C, whieh is provided with two doors, one orly ot
which is opened at a timo to prevent
the eseape of the nir and dust. ‘Tho
air passes from the blower through
the tube, D, aud enters a pipe, A,
which surrounds the lower part of the pan.
From this pipe there are thirty or forty fivecighths-ineh holes leading into the pan, directly
under the crushing wheels, which conduct the
air in jets, aud atir up the ore, nnd coustantly
keep the coarse separated from the fine powder, whieh is carried out through the spout, E.
‘The reeeiver into which the dust is carried
should he go large and so high aa to nllow the
dust to settle and not be carried off.
The wheels are moved by means of bovelgearing connected with tbe upright shaft, H,
shown by part of the dome being broken away,
which carries nround the wheels, while they
are tree to rise and fall without cramping.
This is effected by a double funnel-shaped hole
through the centre of the axle, while the arms
which bear against the axle are secured to the
shaft.
The hand-wheel, J, bears against a rubber
spring, I, which ean be screwed down to incrense the pressure of the wheols whon desired, thus enabling the operator to gouge the
crushing power of the wheels to eorrespond
with the driving power of the eugino.
The general features of this proeess of ernshing and separnting ore are upplicable to the
ordinary stamp-mill which bas been patented
by the somo invontor, nnd was praetieally
demonstrated by him in Colorado ‘Territory in
1860.
The power necessnry to drive one of these
mills, including blower, will not exceed five
horses. It will crush the hurdest roek to absolute flour, nt the rnte of two-nnd-n-half tons
per day, whilst the wear of machinery is senreoly’
LSS
ANOTHER MINING SOHOOL.
We took oeension, on Mondny last to visit
the Lahoratory nnd Lecture Room, recently
fitted upat the College of California, nt Onkland. Tho laborntory is provided with no furnace and all the necessary nppliances nnd
fixtures for the accommodation of students in
chemistry and nssnying. We nlluded Inst week
to the delivery of the iutroduetory lecture, by
Prof. Blake, upon tho subject of * Seience and
Scientific Schools, in their relation to Mining,
Agriculture aud the Kindred Arts.” We had
the plensure, on Monday of listening to the
introductory lecture to the chemistry eonrse,
by the same gentleman, upon “ Oxygen.” The
I
SS ———s
RS
4. W.
perceptible, the only parts linble to wenr being
easily replaced.
A company is now heing formed to use
tbese mills for crushing barytes as n substituto
for white lead. nlso felspar asa fertilizer, and
to manufacture the machines for pulverizing
gold and silver ores.
Persons wishing to purehase the patent for
the State of Californin, for the use of the atmosphere as a separator of pulverized ores, either
in the stamp mill or tbe oue represeuted in
the cut, or obtain any information concerning
the invention, ean address A. W. Hall, pateatee, l'arrytowa, N. Y.
‘Wuite workmen were recently engaged in
fixing up the Pacilie Mail Steamship Constitu) tion, lying nt Mare Island doek, they found ia
ber hulk a pieco of a sword fish’s sword stuck
. into the hard timber to the depth of several
inches. ‘The fish prohably mistook tho vessel _
for a whale.
HALL'S PATENT DRY PULVERIZER.
subjeet was handled in a familiar and interestiag manner, ond fnily illustrnted by tbe usual
experiments. This series of lectures will embrace incidentally the principal applications of
chemistry inthe arts and in metallurgy, and
will be illustrated throughout by experimeats.
Tbe lectures on Miaeralogy and Geology
will be pnrtly illustrated by the collection of
the college, and thnt of the director, recently
inereased by tbe nrrival of his eollectien from
the East. The following isa general outline
of tbe course: Common Minerala nnd the
toeks which they form. Principal Ores of
Iron, Copper, Lead, Silver, Gold, and otber
metals ; their varieties, appearance, nnd metbods of distingnishing them. Gems and Ornameatal Stones. Historieal Notice of the nse
aad purposes of Geology ; Geology a History ;
The suecession of Life upon the Earth; Coal
— Voleanoes, Kortbqunkes; Minernl Veins,
their variety nnd origin.
Oa the subject of Mrxtnn, an introductory.
lecture will bo given on ‘The Necessity of
Education toa Mining Engineer.” The general course will embrace: ‘The Irregular Distribntion of Ore in Veins ; exnmples from the
priueipal mines of the world; Association of
Minernls nnd Ores ; General study of Mining
Plans, with a view to the proper opening and
development of Mines ; Timbering of Mines ;
Ventillation; Drainage; Hoisting; Mills for
Working Ore—their construetion, cost, and
jmanagement ; crushing, stompiag, grinding
and amalgamating machinery ; concentration
of ores, etc.
This course of instruction will be known as
the “ Department of Seieuca nnd Arts of the
College of California,” and will be under the
immediate direction of Prof. Wm. P. Bloke, a
gentlemnn in every way fully qualified te fill
with credit such nn important position.
For tHe Cotorapo.—Fourteen former residents of El Dorado Cniion leave this city today by tbe Los Angeles steamer, en row for
tbe Conon. Twenty-five tons of supplies left
for tbe same destination, by a sailiag vessel, a
ew dnys since, and more will soon follow.
Among the porty leaving, ns above, are several
connected with the Colorado Mill Company.
These parties will start np the mill again immediately after tbeir arrivol, having made a
contract withthe Teebatticup Company, for
crushing their rock, on o percentage of its yield.
This rock is known to he rich. This and that
from the Qeeen City mine was the rock from
which tbe large amount of bullion was taken to
which we nlluded some weeks since, a3 the first
bullion from El Dorado Canon.
Mr. Hazen Kimbnil, a well known artist of
this city goes dowa on the steamer, and will
visit the prineipal localities along the Colorado,
for the purpose of tnkiag sketches, which he
will subsequently produee on canvass. Mr.
Frank S. Alliag, who holds the appointment
of Postmaster at El Dorado Cajion, nlso goes
dowu onthis stenmer. He informs us that he
expects to bein regular receipt of the mails
from this eity by the first of July aext.
Some of the priacipal merehants of San
Froneisco have made arrangements to ship a
large qunntity of goods to Cailville, where
proper storehouses will be erected, and at which
point traders from Snlt Lake and intermediate
points, also from Western Montona nnd portions of Nevada and Arizoaa ecaa be most
conveniently supplied with goods of every description, at more reasoaable rates than they
ean be obtained through nny other channel.
‘This supply will be constant, and must pinve
a great convenience to the vast extent of country interveniag between the Rocky Mountains
aad Sierra Nevadn ; and by it Saa Francisco
will lay the foundation of a business from whieh
she muat eventually reap immense commercial
advontnges.
=_
Tris ensy to say, “ Know thyself,” but whe
is to introduce you? Most people go through
life without making the advantageous nequaintance in question.
Grier knita two hearts ia closer bonds than
happiness ever can; and common sufferings
Formations ; Movements of the Earth’s Crust
are far stronger links than common joys.