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Collection: Books and Periodicals > Mining & Scientific Press

Volume 12 (1866) (428 pages)

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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.