US626326A - Ore-crusher - Google Patents

Description

' No. 626,326. Patented June s, |899.

J. F, KEvTon.

DRE CRUSHER.

(Application Bled Apr. 29, n1897.) (No Model.) 2 Sheets-$heet l.

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2 Sheets-Sheet 2.

(No Model.)

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NTTT. STATES PATENT Fluor-3.

JOHN F. -KEYTON, OF BAKER CITY, OREGON.

ORE-CRUSHER.

SPECIFICATION forming part of Letters Patent No. 626,326, dated June 6, 1899. l Application filed April 29,1897. Serial No. 634,312. (No model.)

T0 all whom, t may concern:

Be it known that I, JOHN F. KEYTON, of Baker City, in the county of Baker and State of Oregon, have invented certain new and useful Improvements in Ore-Crushers; and I do hereby 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 quartz or ore crushers of that class employing a series of impacting devices movable around a common center and coacting with a series of dies resting in a mortar.

The invention consists, essentially, of abattery composed of a series of stamp-arms jointed to and rapidly rotated by a wheel, the arms carrying stamps or mullers over stepped dies located beneath them.

The invention further consists of' the details of construction and arrangement of the several parts, which will be more fully hereinafter described and claimed.

In batteries as heretofore constructed the rotation and operation of the impacting devices have been comparatively slow and the grinding process partially ineffectual in liberating the gold. This difficulty has been due to a lack of continued or extended contact of the impacting devices with the under dies. Another difficulty encountered in such machines, preventing them from giving better results, is the frail structure of the several parts, that necessarily require slow movement to obviate fracture or injury.

One object of the present invention is to arrange the arms and stamps or mullers relatively over dies having long drag-surfaces be-l tween each fall and to conne the ore closely over and crush and grind it between the said surfaces.

A further object is to so attach the arms that they will not be disabled by rapid rotation around a common center and be capable also of supporting and operatingheavy stamps or mullers.

A further object is to retard the movement of the pulp being operated upon in such manv ner as to prevent it from being carried around the race as an unobstructed stream.

Another object is to release the water and the application of proper sieves, and thereby avoid loss.

In the accompanying drawings, Figure 1 is a perspective View of an ore-crusher embodying the invention. Fig. 2 is a similar view of the improved ore-Crusher, showing the sides removed and one part thereof positioned at one side. Fig. 3 is a detail perspective view of the drag-wheel, showing one of the dragarms disconnected therefrom and at one side thereof. Fig. 4: is a detail perspective View, on an enlarged scale, of a portion of the bottom of the mortar, showing the die-seats there in and the dies positioned in connection therewith.

Referring to the drawings, wherein similar numerals are employed to indicate corresponding parts in the several views, the numeral l designates a mortar of circular form and of suitable weight and material to resist fracture, having at regular intervals on the lower portion thereof enlargements or lugs 2, with openings therethrough for the purpose of receiving anchors of suitable form and securing the mortar to a stone or timber rest. Rising at regular intervals from the said mortar are uprights 3, which are securely bolted thereto and have attached to the upper ends thereof inwardly extending obliquely arranged braces 4:, running to a common center 5, which forms a bearing and has an opening extending therethrough for a purpose which will be presently set forth. To a portion of the upper ends of the uprights 3 is a crossbrace 6, supporting a journal-bearing 7, in which is rotatably mounted a horizontal shaft 8, having a pulley 9 on the outer end, to which power is to be applied for driving the shaft 8 and the entire machine. On the inner part of the adjacent braces 4 another brace l0 is secured and supports a second journal-box 11, through which the said shaft 8 also passes, and on the inner end of the latter is a pinion 12, meshing with a bevel gear-wheel 13, keyed to the upper end of a shaft l-t, which extends perpendicularly through the center of the machine and has a pivot-bearin g at its lower end of suitable construction. Beneath the bevel-Wheel 13 is a flanged plate l5 to prevent grease or oil from dropping int-o the battery. The shaft 8 and pulley 9, together with ore-pulp from the battery by grades through 1 the pinion 12, gear-wheel 13, and plate 15,

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- braces 4 meet at the center.

may be dispensed with, if so 'desi-red, `and .a driving-pulleysecu-red directly 'on the upper end of the shaft 14, the latter having bearing in the opening formed at the point where the On the shaft 14, below the braces 4, is keyed the hub 16 of a wheel 17the latter being formed with a series of openings 1S, in which are fitted and secured arms 19, and over the said arms is mounted a circle brace 20, which is bolted in positionand reinforces and holds the said arms against movement and looseningat the: The outer ends of the arms 19 are slightly deflected to points where they are attached.

bring the parts carried thereby in proper position within the mortar and have on one side hinge-sections 21 to removably receive corresponding formations on the upper ends of drag-arms 22 and attached by removable pintles or bolts 23. On the free end of each drag-4 cured a staple or eye 28, to which a chain or` other device may be attached in lifting and removing the stamp carrying the shoe,fto

- getherwith the 4arm attached thereto, from the crnsher or battery.

' `In the center of the vcrusher or battery is mounted an inside `drum 429, having lower flanges 30 applied to similar flanges 31 on a lower support 32,A and the said inside drum is also provided at suitable points with vertical anges 33 to break up a 4rapid swirl or current of the pnlpy material in the Crusher or battery to thereby cause a more effective operation of the stamps or mullers on the ore placed in the device. Surrounding the upper part of'the cru-Sher are outside rims or bands 34,*which have lower anges 85 and endlflanges, the said flanges 35 being bolted to a top flange 37 on the mortar 1, and the end flanges 36 bolted to similar flanges on corresponding'sections, and `between theinner sides ofthe said outside rims or bands and the inside vdrum a narrow circular race is formed to confine the pulp in such position as fto be directly operated upon by the stam ps or mullers, and the flanges located at this point `preventthe water from whirlingaround with the stamps 24. As clearly shown by Fig-4, the bottom ofthe ymortar 1 has projected upwardly therefrom and arranged 4in circular form a series of die-seats 38, a su-fcient-thickness of material being left between the lower terminati-ons of said die-seats, both ina vertical and lateral direction,vin the bottom of the mortar as to resist the pound or weight delivered thereon. These die-seats are arrangedat regular intervals andconsist of upwardly projecting enlargements inclined, as at 39,011 their upper edges and from the highest point formed with a vertically-depending wall 40, extending partially down through the thickness of the height of the enlargement at this point and meetingaslightly downward beveled wall 4l which is again continued at its front termination by a short vertical wall 42. The said walls 41 and 42 form a groove, and at the opposite reduced portion of the enlargement the end thereof eX- tends downwardly at a very slight incline, as at 43. The space formed between the downward incline 43 and the groove opposite and in advance thereof, together with the highest point of the vertical wall 40 of each enlargement, providesa seat for removably receivingV a die 44, having an upper inclined edge 45 of considerable extent and terminating above the highest point of the enlargement in a slightly-beveled wall 4G. The beveled edge 45 of the die forms a long surface, over which the shoes carried by the stamps and drag-arms scour as well as crush the'ore and facilitate the liberating of gold from the material carrying the same, especially' when sulfids are present and the 4metal is rusty, to thereby cause the Quicksilver or amalgam to more readily pick up the brightened particles of gold, as will be understood. By having the said wall 46 inclined, as shown, the stamps passing thereover drop downward and are thereby caused to travel or operate over the entire surface 45 of each die. The under side of each die is constructed with a recess 47, corresponding relatively to the contour of the upper surface of the enlargement, having the upper inclined edge and the front inclined wall, and the front of each die is also provided with a tenon 48, fitting in the groove formed by the walls 40 and 41. By this arrangement the die is prevented from jumping or tilting, and at the same time can be readily removed or placed in position, and at oneend each die has an opening 49 for the engagement -with a suitable lifting device operated by power or otherwise manipulated.

In one of the rims or bands is a screen-discharge 50, covered by a movable plate 51, and when the said screen-discharge is closed the water and pulp arecompelled to rise to'an adjacently-situated discharge 52 in the upper edge of the outside rim or band and is controlled by a slide 53, and by this means a finegrinding and thoroughscouring action is attained and the pulp is permitted to run out of the Crusher or battery, and the gold is vloeing operated upon and the particles thereof have been fully exposed or brightened, so as to readily adhere to the quicksilver that is held in the battery. By operating the slide 53 to control the size of the opening the grade of fineness to which the ore is ground is regulated and different results can be obtained. When the slide is lowered, it forms a wide flat tube, and as a result the -ore must be ground and scoured into a finer pulp than if the slide was left to provide a free exit-open- IOO IIO

ing. lVhe-n the Crusher or battery is being employed in treating gold-bearing ore, this operation facilitates the amalgam process in the battery. If it is desired to crush the ore more rapidly, the movable plate is opened and a suitable form of screen is placed over the opening, which will be arranged in accordance with the character of the ore being operated upon and the degree of Vfineness to which it is required to be crushed. On the opposite side of the crusher or battery, in one of the outside rims or bands 34, a feed opening or hopper 5t is located, by means of which the ore is placed in the Crusher or battery, and water maybe supplied by means of a rubber hose or pipe in any preferred manner.

The material advantages in this device, not only as t-o its increased capacity, but also in the economy of liberating and saving the precious metals, make it a valuable accessory to mining operations. The rapidity of movem ent of the operating mechanism is also beneicial in this class ot' devices by reason of the effectiveness and greater capacity and output within a certain time. As an example of the power of the machine, as heretofore set forth, there are five stamps or In ullers employed and seven dies with seven drops to each stamp, and the weight of the stamps carried by the arms is about four hundred pounds, more or less. It the machine is run at twenty-tive revolutions per minute, which is a perfectly safe speed, it would produce one hundred and seventy-iive drops to each of the stamps or m ullers, which is greatlyin excess of the number of drops of other mills now commonly employed. This increases the crushing and scouring action, and consequently permits a greater quantity of ore to be operated upon within a given time.

It is obviously apparent that many minor changes in the details of construction and arrangement might be made and substituted for those shown and described without in the least departing from the nature or spirit of the invention.

My object in having the wheel-arms deflected, as described, is to avoid torsion through centrifugal action by causing an equal draft on the fork or hinged legs of said arms through a simple hinged connection between the wheel-arms 19 and the dragarms 22. The drag-wheel as a whole is built u p as described, so that it may be easily repaired in case any part of the same is broken or injured and that it may be taken to pieces for packing or shipping.

Having thus described the invention, what is claimed as new is* l. In an ore-crusher, the combination of a drag-wheel involving a hub provided with slots, arms fitted into said slots, an annular band or brace attached to said arms, the arms being bent or deflected outside the brace, drag-arms jointed to the deflected projections, and stamps or muilers, substantially as described.

2. In an ore-Crusher, the combination of a 1n ortarhaving enlargements with recesses between them to form seats, and a groove at the lower portion of one end of each recess, and dies removably fitted over the said enlarge ment and having an under contour corresponding thereto and the recesses between the same, and also provided with tenons to engage the said grooves, substantially as and for the purposes specified.

In testimony whereof I have signed this speciication in the presence of two subscrib ing witnesses.

JOIIN F. KEYTON.

Witnesses:

HERMAN FUcI-Is, JAMEs T. CHoUL.

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