US79954A - collins - Google Patents

Description

2 Sheets-Sheet 1.

' J. A. mums.-

Ore Crusher.

Patented J uly14, 1868.

2 Sheets-Sheet 2. J. A. COLLINS.

'Ore Crusher. No. 79,954. Patnted July 14, I868.

N- PETERS. PHOTO-UTHOGRAPHLH, WASHINGTON, D. C.

guitar tater gotten} fiffitr,

diameter, havin Jenn aycon'mns, OF VIRG NIA; cirrus-mun.

ream-Pm Na. 79,954,'datea;zu'zy 14, 1868.

easements, eamnrn; Am) AMALGAM TOR,

TO ALL WHOM IT MAY CONCERN: V

-Be it known that I, JOHN A. COLLINS, of Virginia City, county of Storey, State of Nevada,-'have invented an Improved-Crusher, Grinder, and Amalgamator; and I do hereby declare the following description and accompanying drawings arc sutlleient to enable anyperson sltilled in the art or science to whichit most ne'arly nppertains, to make and use my said invention or improvements without further: invention (Sr experiment} The nature and object of my in \cntion are to providean improved maehine for crushing and grinding quartz. rock, ores, stones, and other friable substances, requiringfto be crushed, ground, and pulverized, and also for amalgamating and separating gold, silver, and other substances therefrom.

My invention consists in the'employmcnt of a foundation-plate or circular. disk, of an "-desired diamete r,

having a. eurve or flange around. the periphery, slightly bevelled to accommodate the outside swing iii the crhshing-wheels, and another flange within, so as to form an annular channel or groove around the .circumference of the bed-plate. V l e From the outer surface project three or more lugs or cars, for the accommodationot' bolts, by which the machine is firmly bound together. v p I I l v In this groove or'annular channel I place three or more crushing-wheels, from about .two to six feet in v g a. face, six inches, more orlcss, and made ofsuificient' strength to resist the weight or pressure to r'rhich they will be subjected. r

Each of the crushingnvheels encloses a. cylinder or barrel, in which I place three or morerollgrspf unequal size, of about thelength of the barrel, that they may roll freely therein. The-two outsidc' 'rollershaye a diameter about one-eighth of that of the barrel. The mi'ddleJ'olleris somewhat smaller than its companions; By this arrangement, the double impingement of the largerones, while in motion, causes, the smaller roller to rotate in an opposite direction, giving itfthe grinding eiliciencyof the pan and shoes, while the four lines at" rolling contact between the large rollers and the smaller one, and between thesame and the outer cylinder or barrel, quadruple its reducing capacity as compared with a single roller.

To guard against any derangement of these rollers, in case of precipitntion and packing of the substance in the pulp, .a holder is employed which iscarried along with the rollers as thefro-tate.

For the further illustration and description of my invention, reference is bad to the accompanyingdrawings and letters marked thQl'QDflgDf whieh Figure 1 is a. side sectional elevation, taken through 94x, fig. 2.

Figure 2 isa. horizontal sectional view, taken through y y, fig. 1. -Fi'gur'e 3 is a side sectional elevation ot'a cylinder.

Fi ur'c' is an end sectional view of a c 'llnd'er.

A represents thedbwer'disk or base-plate, made of iron, havi'ngan annular-ring or track, B, on it's periphery. In this track rotate three or more iron barrels G C 0, about five feet in diameter, and six feet in length, each encircled at themiddle with a. rim or tire, D,=abou't one foot in'width, and dine foot or more in thickness.

' Each of these barrelshas a. fixed axle,'E, with journals turning in bones at the ends of the arms projecting downwards,'(as shown in fig. 1,) from a'eentral plate, F, turning in a, circular recess, in the driving-plate G above it. e i i p A' heavy circular iron driving-plate, Gr, ofthe same diameter as the circular trough,rests on the crushing-- tire of the four barrels, and-is actuat'ed'by a central shaft, H, having its step in the centre-of the lowerdisk or bed-plate, it being made' square, and bevelled above and below from the centre, where it passes throughthe driving-plate at L-soi that, infturning this plate, it isca'used to rotate 'indcpendent ol the central plate F, and adjust itseltto the rise and fall of the driving-wheels." This driving-platc 'has a-track, J J, on" its upper and lower faces, near the'periphery, which are bevelled, the lower one towards the axis of revolution, and the upper towards the periphery; or the driving-plate nay'be'driven by segment-gearing andbelt.

Above the driving-plate is atop plate, K, the lower face of which is provided with a track, K, which is also bevelled towards the periphery. Between the driving-plate and the topplate is placed a small. plate, L, with radial varmsf'to thecentre of whichlthree or more friction-rollers, N N, are attached, directly onia line I above the crushingwheels, and are bevelled towards the axis of revolution.

To prevent friction, these wheels are bevelled on their face, to correspond to the bevel ontho' uppcrside of the revolving plate, and the under side of the stationary plate abovetandithe am'ount of bevel given to the tracks and wheels should of course bc-such that the circumference of a circle, through which the outer edge of the wheel travels, shall contain the circumference of said outer edge precisely the same number of times that the circumference through which the inner edge travelscontains the cireumfereuce'ot' said inner edge.

Substantial columns of cast iron or othey's'trong material, 0 O O, and hollow their entire length, which should be a trifle less than the diameter oi" the crushing and iriction vheels, coupled with the-thickness of the re'volvingbr driving-plate, must be placed'between the lugs of the upper and lower stationary plates.

' A substantial iron rod, P; firmly fastened at each end of each column, extends downwards, and penetrates the foundation from. twelve (12) to thirty-six inches, and is solidly bound to it by means of nuts and screws Q Q; The'rods should extend upward through thelug of the stationary plate suff ciently to admit of Well-hooped car-springs -R, of large dimensions, surmounted by an iron plate ofequal diameter, which, by means of a screw, can be made to give a'weight'or pressure to the crushing-wheels, indopendentof their own weight, that wllllil'ectuzilly reduce the hardest rock. I I

Thc'rock is fed'before the wheelsinto the annular trough, and, if suilicient weight or pressure is applied by the set-scre ws, it is pulverized by a. few revolutions of the wheels. If the rock is crushed dry, a scoop fol lows'the lastwheel, which plows the pulverized rock, and may carry it toa revolving screen. The finer portion, aitcr' passing through the screen, is taken by 'elevatorsto rcs'ervoirs abovc, where the pulp is prepared for amalgamation byadding water in the usual Way. I p i A If the rock is. crushed'wct, the ore or pulp is discharged, through a holein the side of the annular trough, .into atank or elevator, to pass" through the screens, and from them into the grinding and amalgamating-barrels.

The interior of these barrels is made smooth, and in them are placed three heavy iron rollers, S S S, of just suiiicient length to work while-lying lengthwise in the barrel, and arc-made'to 'revolveag'ainst its side and against each other. The middle roller S is smaller in diameter than the two others, which causes it to revolve in an opposite directiou from the larger ones, thereby causing still greater friction, and a greater reducing-- capacity. These rollers might be increasedto live, with perhaps good results, "in which case'lthe second and fourth should be of less diameter than the remaining ones. Y

J Iron balls may-be used for this purpose, turning in circulargrooves, and separated bypartitions made. in the barrel, but I think the roilersabove described are preferable, I

- For keeping the 1'ollers against the inner surfaceof the barrel, I provide a holder, consisting of two endplatcs, UU, suitably braced by rods. The lower ends of the plates are cutaway, so as to fit ovei' the-rollers. To the upper endsor arms are attached horizontal friction-rollers, W, which reachto near the sidesof the. barrel above, sothat when the wheels pass over uneven suri'aees-br-the charge of ore in the barrel becomes packed, the grinding-rollerswill be kept down, and the friction-rollers will turn on the rods which pass through' them by coming in contact with the sides of the barrel. Ordinarily this device may bedispens'ed with, or rings T may be attachedto the inner surface of each head of the-barrels. I i

The pulp, with the usualquantity ofquicksilver used iri amalgamating, is introduced into the barrel, and discharged therefrom by mcanslof-a door, made at 'any'convenient place, outside of theline of the trough.

Additional barrels and wheels may be put into the diameter of the crushing-trough, and asecond' series ofbarrel-wheels may be placed upon the drivingplate, to work in a trough, the same as thatof the bed-plate or lower disk; this second set of crushing-wheels or barrels taking the place of-the friction-wheels N N, asthe driving-plate would communicate. motion to both series of barrels and wheels, in the same [manner as above described. Thus the capacity of the. mill would be doubled without occupying, more. ground, and withouta proportionate increase of expense. I I r I I By means of the combinations above described, this.mill embraces in itself crushing, grinding, amalga- -mating, and'extracting precious metals, whichhas the following advantages over the'machinery now in use for that purpose: As compared with a stamp and panmill, of equal capacity, it' will cost eighty per cent. less to work the ores, will occupy less space, requires less power, and requires aless number of'hands to work it.

:The machine may beef any required size or material, If for grinding quartz or ores,they maybe made wholly ofcast iron; if for artists. colors, porcclain-clay,'or other substances, they may be made of porcelain, glass, or other non-corrosive materialf I V Having thus described the manner in whic'hI construct and operate my machine, what I claim as m'y'invention, and desire to secnreby Letters Patent, is-

The combination and arrangement of the cylinders C, crushing-wheels D, axle E, and central plate F, with arms projecting downward, and supporting said axle, substantially as described.

2. The combination and arrangement, of the driving-plate G on the shaft H, the friction-rollers N on the arms of the revolving plate L, and the stationary plate K, above it, substantially as described.

3. The combination and arrangement of larger rollers S with smaller, 5, withinthe cylindersC, the former rolling upon thelatter and upon the cylinder, but the latter or smaller'rubbing and grinding against the cylinder, as described In witness whereof, I. have hereunto set my hand and seal.

v JN'O. A. COLLINS. [1,. 5.]

Witnesses:

C. 'W: M. Satire; Gno'.- H. Srnoue.

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