US1006267A - Dry-process gold-machine. - Google Patents

Description

D. M. OWINGS & W. M. OSBORN.

DRY PROCESS GOLD MACHINE.

APPLICATION FILED MAR. 16, 1911.

1 ,OO6,267, Patented Oct. 17, 1911.

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D. M. OWINGS & W. M. OSBORN.

DRY PROCESS GOLD MACHINE. APPLIOATION- FILED MAR. 16, 1911.

Patented Oct. 17,1911.

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DAVID M. OWINGS AND WILLIAM M. OSBORN, OF CANTON, OKLAHOMA, ASSIGNORS OF ONE-HALF TO ALLEN C. FRAZIER AN D EDWARD C. FRAZIER, OF CANTON, OKLAHOMA.

DRY-PROCESS GOLD-MACHINE Specification of Letters Patent.

Application filed March 16, 1911.

Patented Oct. 17, 1911. Serial No. 614,858.

To all whom it may concern:

Be it known that we, DAVID M. Owmcs and WILLIAM M. OSBORN, citizens of the United States, residing at Canton, in the county of Elaine and State of Oklahoma, have invented certain new and useful Improvements in Dry-Process Gold-Machines; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in dry process gold machines.

One object of the invention is to provide a machine of this character having means whereby the sand is pulverized or reduced to a fine condition and then subjected to an air blast which will separate the precious metal from the sand.

Another object is to provide means whereby both the heavier grades and the flour gold will be caught while the sand will be discharged from the machine.

With the above and other objects in view, the invention consists of certain novel features of construction, combination and arrangement of parts as will be more fully described and particularly pointed out in the appended claims.

In the accompanying drawings: Figure 1 is a side view of our improved dry process gold machine; Fig. 2 is a top plan view; Fig. 3 is an enlarged vertical longitudinal section; Fig. 1 is a vertical cross section on the line lt of Fig. 3; Fig. 5 is a detail cross sectional view on the line 55 of Fig. 3 showing the arrangement of the air blast fan.

Referring more particularly to the drawings 1 denotes the supporting frame of the machine in one end of which is arranged a gold collecting box 2 comprising removabletop and side pieces 3 and 4; and an outer end piece in the form of a door 5 which is hinged at its upper edge to the adjacent upper portion of the frame and is fastened in a closed position by a suitable catch 6. The gold collecting box 2 has no bottom and below the same and resting on the bottom of the frame 1 is a tank 7 adapted to contain mercury. In the outer portion of the box over the tank 7 is arranged an inclined wind or air deflecting board 8. On the inner sides of the side boards 41 and on both sides of the deflecting board 8 are arranged coverings 9 of fur or other similar fibrous material, while the inner side of the top 3 is provided with a covering 10 of feathers or similar fibrous material. In the end of the box below the outer end of the deflecting board 8 is formed a discharge opening 11 through which. the sand is discharged after being separated from the gold.

Arranged on a superstructure 12 above the opposite end of the frame from that containing the box 2 is an ore chute 13 at the lower end of which is arranged a hopper 14 adapted to receive the sand and ore prior to the feeding of the same to the machine. In the top of the frame and bottom of the hopper is formed an inlet passage 15 over which is revolubly mounted a feed roller 16 having formed therein a series of longitudinally disposed grooves or channels 17 which form pockets to receive the ore and to discharge the same into measured quantities through the passages 15 and in the machine. Above the upper end of the chute 13 is arranged an inclined screen 18 the lower end of which is connected with a hopper 19 hav ing arranged therein a pair of revolubly mounted transversely disposed crushing rolls 20. The sand or ore to be separated by the machine is discharged onto the screen 18 and the part of the material which is fine enough to be acted upon by the separating mechanism will pass through the screen into the chute 13, while the coarser particles of the sand and ore will pass out over the screen and into the hopper 19 where it will be acted upon by the crushing rolls 20, which will reduce the ore and sand to the same fineness as that which passed through the screen, said reduced ore and sand passing through between the rolls and into the chute 13 and from thence into the feed hopper lat from whence it is discharged in measured quantities by the grooved roller 16 into the machine as hereinbefore described.

The sand and ore after being discharged into the machine in the manner described fall onto transversely disposed inclined amalgamated plates 21 arranged across the frame of the machine as shown in Fig. 3 of the drawings. Below the plates 21 is arranged a sand board 22. The sand in falling onto and between the plates 21 is subjected to a strong blast of air from a blast fan 23 which is revolubly mounted in a suit I able fan casing 2ft arranged in the end of the machine and extending transversely across the same as shown. The fan casing and the fan 23 are of the same width as the frame of the machine so that the air blast or current will extend across the machine and upon striking the fine sand and ore falling through the discharge passages 15, will blow said sand and ore through the box 2. In thus being blown through the box the heavier particles of the ore will fall into the tank 7 containing mercury and will be held by the latter while the sand will be blown on through the discharge opening 11 in the opposite end of the machine. The

what we claim is:

very fine or fiour gold will be blown into engagement with the coverings or linings of i I porting frame, a collecting box arranged 1n wool or feathers on the inner sides of the top and sides of the box and on the deflecting board 8 whereby said flour or fine gold will be caught and retained by the wool or feather lining or coverings. By this means it will be seen that all of the gold will be separated from the sand and the latter discharged from the machine. After the operation is completed or whenever desired the sides and top of the box may be readily removed and the fine gold accumulated thereon or caught thereby may be readily removed. In order to facilitate this removal of the sides and top of the box, said parts are preferably tongue and grooved together and fastened by means of bolts 25 having thereon thumb nuts 26 as clearly shown in Figs. 3 and 4 of the drawings.

On the outer end of the shafts of one of the crushing rolls 20 is fixedly mounted a drive pulley 27. On the end of this shaft is also fixedly mounted a spur gear 28 which meshes with a similar gear 29 on the ad jacent end of the other crushing roll whereby said rolls are driven. On the opposite end of the shaft having the drive pulley 27 is fixedly mounted a belt pulley 30 which is connected by a belt 31 to a pulley 32 on the adjacent end of the fan shaft whereby the fan is driven in the proper direction. On the fan shaft adjacent to the pulley 32 is fixedly mounted a belt pulley 33 which is connected by a belt 34 to a pulley 35 on the adjacent end of the shaft of the feed roller 16 whereby said roller is driven in the proper direction for discharging the ore into the machine as described.

It is to be understood that the term fibrous as employed in the specification and claims in this case is intended to cover the material having a pile-like surface such as would be capable of arresting the particles of gold dust passing through the machine.

From the foregoing description taken in connection with the accompanying drawings the construction and operation of the invention will be readily understood without requiring a more extended explanation.

Various changes in the form, proportion and the minor details of construction may be resorted to without departing from the pinciple or sacrificing any of the advantages 1 of the invention as defined in the appended claims.

Having thus described our invention,

1. In a dry process gold machine, a supone end of said frame, said box having in its end a discharge opening and having its sides and top formed in detachably connected sections, a door arranged in the outer end of the box above the discharge opening therein, a deflecting board arranged in the outer end of the box, gold collecting coverings arranged on the inner surfaces of the sides and top of the box and on the opposite side of said board, means to feed the gold bearing material to the machine, metal collecting plates arranged across the machine belcw the feed opening therein and means whereby a blast of air is forced through the material fed to the machine and said material thereby blown through said collecting box.

2. In a dry process gold machine, a supporting frame, a collecting box arranged in one end of said frame and having a discharge opening in one end, a deflecting board arranged in the outer end of the box, a fibrous covering arranged on both sides of said board, a fibrous covering arranged on the inner face of the top of said box, means to feed gold bearing material to the machine, and means for forcing a blast of air through the material fed to the machine, said material being thereby blown through said collecting box.

In testimony whereof we have hereunto set our hands in presence of two subscribing witnesses. DAVID M. OIVINGS.

WILLIAM M. OSBORN. Htnesses LEE LEsLIE, GEORGE W. BURRELL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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