US351616A - Machine for disintegrating clay - Google Patents

Description

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J..C. ANDERSON.

MAGHINB POR DISINTBGRATING CLAY, GLAY SHALE, aw.

No. 351,616. Patented-Oct. 26,1886.

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.MAEINEFOR DISINTBGRATING CLAY, CLAY SHALE, Gac. lvm-351,616. Patented 001.. 26. 1886.

UNirnn STATES.

PATENT erich.

JAMES O. ANDERSON, OF HIGHLAND PARK, ILLINOIS.

MAcl-HNE Foa DISINTEGRATING CLAY, CLAY-SHALE, eee.

SPECIFICATION forming parl: of Letters Patent No. 351,616, dated October 26., 188,6.

Application iiled August` 5, 1.986.

`land Park, in the`county of Lake, State of Illinois, have invented certain new and useful Improvements in Machines for Disintegrating Clay, Clay-Shale, Snc., of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to improvements in machines for the reduction of clay, clay-shale, and analogous substances to a finely-dividedcondition.

My invention is designed as an improvement on the vdevices shown, described, and claimed in Letters Patent No. 271,588, granted to me February 6, 1883, and to this end my invention consists inmounting the rolls so that their peripheries will not impinge, and in providing the surfaces of the eccentricallymounted rolls, or rolls in which thesurface of one is traveling faster than the other, with a series of cells or depressions for clutching or holding the clay, ore, or other mate rial,while it is being acted upon, so as to transfer the abrading or rubbing action from the rolls to the material itself, and in this way protect the. surfaces of the rolls from rapid destruction.

Referring to the drawings, Figure 1 is a side elevation of my improved machine. Fig. 2 is a top or plan view. Fig. 3 is a detached View of the reducingrolls. Fig. 4 is alongitudinal sectional view of my machine, showing the screen and elevator for conveying the coarse material back to the disintegratingrolls. Fig. 5 is a detached view of a portion of the screen. Fig. 6 is a plan view of a portion of one of the reducing-rolls. Fig. 7 is a sectional View of a portioiofone of thereducf ing-rolls.

A A indicate the reducing-rolls, which are mounted on their trunnions or bearings ina suitable frame, B, of any desirable construction, said rolls being provided with gearwheels C C, of the same or of different size, so that the rolls can be driven at a uniform speed, or of different speeds, as may be desired.

One of the rolls A is provided with a gearwheel, D,whichmeshes with and is driven by a pinion-wheel, E, on the main driving-shaft F, said shaft F being driven by a belt which passes over the pulley G, and is connected to Serial No. 210,105. (No model.)

any suitable source of power. One of the rolls A is mounted in movable bearings b, which are operated by set-screws c, so as to regulate the distance between the rolls to suit p the material to be operated upon.

The reducing-rolls A are elliptical in peripheral outline, and are arranged to rotatein opposite ndirections, as indicated by the arrows in Fig. 3, such elliptical form being to compensate for the convergence incident to the changing or altering positions of the rolls when rotated in this direction. rIhe trunnions or bearings of the rolls are eccentric to their axial centers, so that a rapidly-changing peripheral speed is given to the rolls at the point of their nearest contact, and the material to be act-ed upon is subjected to a rubbing, abrading, and crushing action, which reduces or pulverizes the same.

The periphery of a roll or other revolving bod-y travels faster or has a greaterv velocity than the axis. Consequently when the clayor other material to be operated upon is caught between the rolls it is subjected to the action of the periphery of the roll' which is the greatest distance from the supporting-spindle, and as one surface of the roll is traveling faster than the otherthe material is subjected to a rubbing, abrading. and crushing action, and will be thoroughly distintegrated.

The description of my invention thus far is essentially the same as embraced in the patent heretofore referredto, and the improvements I have made thereto will now be described.

The rolls A are so mounted in their bearings and so timed in their revolutions that their periph eries will not touch at any time, and the peripheries of said rolls are provided with cells or depressions d throughout their ent-ire surface, for clutching and holding the clay,

shale, or ore while it is being acted upon, so,

as t-o transfer the abrasion or rubbing action `from the faces of the rolls to the contiguous faces of the particles to be reduced, andin this way the surfaces of the rolls act simply as an- Vils, while the wearing-force or fpictional contact is exerted between the particles of the material acted upon. The square or rectangular form of the cells d, which form I prefer to use, prevents the coarse particles of shale or ore from slipping and rubbing against -the faces of the rolls.

IOO

H is a screen placed in an inclined position below the reducing-rollsby which the coarser particles are separated from the finer. The coarse part, passing over the screen, nds a lodgment in the compartment I, from whence they are taken by the elevator buckets and deposited in the chute L, which conducts it back into the. hopper M, and thence back to the reducing-rolls. One of the rolls is provided with ayielding bearing, which may c011- sist of a powerful spring placed next thejournal-box, so as to hold the roll to the work, but will allow it to yield when undue strain is eX- erted on the same, and, as before intimated, the rolls are so mounted that theirsurfaces do not impinge against each other when the machineis running empty, as is usually the case, and thus the surfaces are prevented from grinding together.

ln operation, the material is first broken into small pieces ot'a comparatively uniform size 1n a separate breaking-maehine, (not shown,) and deposited in the hopper M through the spout N,and is constantly t'ed from such breaking-niachine to the hopper, so that the rolls are atall times provided with asuflicient quantity of the material,the coarser portions which enter the hopper through the spout N coming 1n contact with the liner portions entering through the spout L and reducing the same still further by frictional contact exerted by the cellular rolls.

I may obtain good results by mounting the rolls centrally to their respective axes and placing pulleys on the respective roll shafts in place o1" the gears, and rotating one ofthe rolls much faster than the other one, which will cause the material to rub together; but I prefer to use rolls in which the surface of' one is traveling faster than the other, said rolls bcing provided with cells, holds, or clutches for holding the material to be reduced in a vicelike grip so as to canse the material itself to be rubbed together, so as to reduce it'to a powdered condition; and to carry out this method the eccentric rolls seem to be the best adapted to the purpose. It will be noticed, however, that these rolls, although of peripheral speed, :must rot-ate together at the same axial speed, and when rotated toward each other, as they must be, must be made slightly elliptical to conform at all times at the proper impinging points. and are therefore geared together conformably.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

l. In a machine for reducing clay,clayshale, or other material, the reducing-rolls of which are provided with cells or depressions in their periphery, the surfaces of which are arranged to travel at variable or different speeds, as described, whereby' the material is held by the cells and the material rubbed together, as set forth.

2. In a machine for disintegrating clay,clay shale, and other material, the elliptical reducing-rolls A, mounted eccentrically, as described, the peripheries ot' which are provided with cells or depressions for holding the material while the contiguous particles are being reduced by .frictional Contact, as set forth.

In testimony whereof I affix my signaturein presence of two witnesses.

J. C. ANDERSON.

XVitnesses:

F. L. BLAKE, Osma A. V. RUNNGREN.

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