US101500A - Improved apparatus for disintegrating ores - Google Patents

Description

To whom these presents shall come:

"tn'ted 51ans ALMARIN B. PAU-L, 0FA SAN FRANCISCO, CALIFORNIA.

Letters Patent No. 101,500, dated April 5, 1870;

IMPROVE!) APPARATUS FOR DISINTEG-RATING- CRES.

The Schedule referred to in these Letters Patent and making part of the :ame

Be it knownthat I, ALMARIN B. PAUL, of the city and county of San Francisco, California, have in'vented a new and useful System of Pulverizing and Preparing Ores for Amalgamation; and the following description, taken together with the drawings, the figures and letters attached, will enable any one skilled in the art to make and use the same.

The purpose of myinvention is to make a pulverizer in such a manner as tol be heated, and at the same time so constructed, in respect to smoke, as. not to be detrimental to the ore during pnlverization or discharging of same from, when pulverized.

The main object, however, is to facilitate pulverization by drying, as well as the calcination and combustion of metallic ores, by the means, of artificial heat during the time of pulvelization, and for the better ventilating and amalgamating of the metals of same after being discharged.

I take an ironcylnder of any given size, either as to diameter or length, (the best proportion being, however, one-third longer than its diameter,) which is made 'to-revolve on hollow axles or `trunnions.

`'.'lhis cylinder is inclosed in an iron casing, the end of which should be'made of cast-iron', and sufficiently strong to support the barrels, with bearings for trunnions cast thereon. l

The circle and sides can be made of sheet-iron, of suicient strength to not warp by heating. The interior of the casing is i partitioned o1',onethird or onequarter space beingtaken for the fire-place, the remainder to be the dust-chamber and apartment for receiving discharged ore.

The partition issoconstructed as to encircle the cylinder, and as close as the revolving barrel will allow.

Doors for the lire-place, or discharged ore apartment, can be constructed to-suit, either on ends or sides.

The operation is thus: A given 'quantity of iron balls or buttons, heavier pieces of quartz, or hard stone, are introduced as pulverizers. The ore in a finer size, and suitable for pulvel-ization, is then introduced into the cylinder through the hollow trunnions or side opening, as desired, and in quantities proportional to size of cylinder, but never to exceed one-half the capacity of cylinder as a circle. The whole mass is then set to revolving by suitable gearing, and heated by the fire to a fair dryi-ng and Ventilating heat, and to ygain'what I term an electrical condition of .the ore, but not'what may be termed a desulphurizing degree.

N o. 1 is a side View of cylinder and easing.

No. 4 2 is a sectional view of cylinder and casing.

N o. 3 is an end view, showing trunnions.

A is partition.

B, fire-place.

C, ore-chamber.

D are hollow trunnions.

E, sieve fordischarging ore.

F, doors.

G, pulley.

What I claim isl. The drying, Ventilating, and heating of ores during the process of pulverization, by the means of artiicial heat.

2. The combination of furnace and discharge apartments, for the purposes as specified.

3. The heating of ores for the facilitating pulverization and more perfect amalgamation by the dry amalgamating process.

Witnesses:

J OHN MULLEN, KATE M. ATKINSON.

`ALMARIN B. PAUL.

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