US909293A - Amalgamator and concentrator for ores and tailings. - Google Patents

Description

J. R. HARRISON.

AMALGAMATOR AND CONGENTRATOR FOR ORES AND TAILINGS.

APPLICATION FILED MAY 9, 1906.

Patented Jan. 12, 1909.

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. R. HA'RRISGN.

AMALGAMATORAND GONGENTRATOR FOR ORES AND TAILINGS.

APPLICATION TILED MAY 9, 1906.

Patented Jan. 12, 1909.

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. 'J. R. HARRISON. AMALGAMATOR AND 'OONGENTRATOR FOR, ORES AND TAILINGS.

APPLICATION FILED MAY 9, 1906.

Patented Jan. 12, 1909.

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JOHN ROBERT HARRISON, OF BALLARAT, VICTORIA, AUSTRALIA, ASSIGNOR OF ONE-HALF TO HUGH VICTOR MCKAY, OF MELBOURNE, AUSTRALIA.

AMALGAMATOB AND GONCENTRATQE FOR ORE 1S AND TAIL-INGS.

Specification of Letters Patent. Patented J an. 12,.1909.

Application filed May 9, 1906. Serial No. 315,965.

the internal gutter or race B, which, at its I lowermost end, is provided with a discharge i opening B c is a rim on inner edge of pan stretching from free end to the gutter B. The surface of said volute-shaped pan or table A takes a helical course, that is to say, starting from the discharge end A for the saved mineral the surface gradually rises until its radial end beyond a feed hopper A stands higher than the surface at the discharge radial end, or in other words there is a step of some inches between the terminals at the feed and discharge surface of the table. Said incline surface gradually decreases in fall towards the discharge and narrower end A of the volute surface, while for some classes of ore the table is adjusted to have a very slight upward incline at its discharge end.

T 0 all whom it may concern:

Be it known that I, J OHN ROBERT HARRI- soN, a subject of the King of Great Britain and Ireland, residing at No. 47 Albert street, Ballarat, in the British State of Victoria, Australia, iron founder, have invented an l Improved Amalgamator and Concentrator for Ores and Tailings, of which the following is a specification.

This invention relates to an improved amalgamator and concentrator for ores and tailings.

It consists of a table or annular pan, whose surface is of a tapering volute form in plan, provided with an internal gutter or race to receive and carry off the gangue. The said table surface is slightly inclined downwards transversely from its inner edge to its outer rim or periphery and also inclines downwards circumferentially from its feed end to its dis- The pan or table A is connected by three charge end, further the table is suspended radial arms C to a central boss 0. The pan or table A is suspended by three or more chains D carried by adjustable screwed hooks (1 supported on rubber washers d seated in sockets d formed in arms D projecting from a suitable central pillar E which is firmly secured upon a gear bracket E the bottom part of which is in the form of a stool E said gear bracket E has bearings for horizontal drive shaft F upon which are fast and loose belt pulleys F and a bevel wheel F which gears with a bevel pinion F on the upper end of a vertical shaft F supported in a bearing F carried by said stool E while secured upon the lower end of said vertical shaft F is a flanged collar G which supports an adjustable eccentric G which passes into a bearing C formed in the central boss C located and secured at the center of the arms of the pan or table A, and it is by the said eccentric disk G having a throw of about seven-sixteenths of an inch or thereabouts and rotating at about two hundred revolutions per minute that the gyratory or eccentric shaking motion is imparted to the table A, as it swings upon its chain or flexible suspensories D. Said eccentric G is so secured to the flanged collar G that its throw can be adjusted by means of such as bolts 0 passing through slots 0 in the eccentric G and through the collar G which is secured to the lower end of vertical shaft F".

If so desired the eccentric may from overhead supports and has a gyratory I or eccentric shaking motion imparted to it by a horizontal eccentric which works in a boss at the center of pan arms, also for some classes of ore and especially rich ore two or more pans may be supported one above the other.

The invention will now be fully described aided by a reference to the accompanying sheet of drawings in which Figure 1 shows a sectional elevation of the machine taken on line a a of Fig. 2. Fig. 2 a plan of the machine, Fig. 3 is a detail plan of the central part of pan arms showing the eccentric for imparting motion to the table or annular pan, and Fig. 4 a view of discharge end of pan, while Fig. 5 is a central sectional view of part of the machine when two pans are employed. Fig. 6 a detail view of the end parts of the feed and discharge ends of pans, and Fig. 7 a detail plan showing the arrangements of riffles. Figs. 8, 9 and 10 are details of the discharge end of the table showing the sliding hopper and means for adjusting the height of the discharge end. Fig. 11 is a detail view showing the means provided for the radial or transverse adjustment of the table.

The annular pan or table A is made with an outer upstanding rim A while its inner edge is for the most part flush with top of table to allow the gangue to be discharged to be of the ball type that is it may have a spherical working surface'which 'willfadmitof the free. swaying of the pan.

The bearing C may be made in the form of. an open top dish in. order that the eccentric G may work in an oil or other lubricant, also the bearings. for the drive shaft. F may be of the adjustable type supported on side center pins, further the hook bolts cl of the suspending chains D can be, as. shown, fur: nished with adjusting nuts.

The volute shaped table surface A may be constructed in four or'more segmental sections; each in one casting or it may be made of sheet metal with the rims and gutter secured to it,' while the whole of said volute shaped surface and rim A is covered with amalgamated copper plate, and further it may have curved amalgamated rifiles' ct on a portion of its surface."

' "The ore or material to be treated is fed to the table in a finely pulverized and fluid state through the'hopper A at the high and widest end of the annular v'ol'ute shaped pan or' table A, said hopper A being perforated on its bottom and throu h which latter the materials pass to the tab e curved water spray'pipe H is provided to play upon the material as it reaches the eX- tremeouter edge of the last quarterof table A, the direction andquantity' "of such feed water beingcap'able of adjustment, and when necessary other perforated jet pipes can be arranged at suitable positions to play on the material on table A. Feed water pipes H 'I-I are provided for the feed hopper A and the semi-circular trough K respectively.

At the discharge end of the table A is a sliding ho]pper I'which is provided with a partition One half ofsaid hopper Ireceives thevaluable mineral'whieh has been collected at or near the'rim A while'the other half receives 'the'seconds or material of less specific'gravity and whichfiows over the inner surface of the discharge part A and which material canagain be put through the machine. It will be noted that the inner side of discharge end 'A 'isfiared to allow freedom for the seconds overflowingto the hopper I. As shown in Figs. 8, 9 and 10 the'sliding hopper I is supported on a bracket or lug g which is secured tothe end' of the gutter B, by bolts and said hopper I is held in the desired position by a spring I which is'carried on a lug st projecting up from the said bracket g To adjust the position of hopper I the nut of bolt in lu as holding the spring I is slackened and t e tension on hopper I is thus'reduced so that it can be moved transversely to the discharge end of table. The hopper is provided at each end with spouts J and J, the valuable material to a collecting hopper J while the spout J leads the seconds to said semi-circular trough from which the I and a gutter connected to 5 form from end. the spout J carrying a material is again. delivered, on to the table A by means. of a, tyrnpanuni elevator K which is driven by a worm gear L, receiving motion from the main drive shaft, F'by means of belt pulleys f and f Said tympanum elevator has three semi-circular tubular arms 7r through which the seconds pass to a hollow boss and from which they are delivered to table by the tapering chute k When the two pans are arranged one above another, as shown in Fig. 5, the upper pan is earried from the lower pan by three or more brackets as A, while a chute A is provided between the discharge end of the upper pan and the feed end of the lower pan or the chute A may be dispensed with and the seconds only be returned from the upper pan to the lower pan so that the supply to each pan or table may be divided in place of feeding all the material to one pan and from thence to the other.

To adjust the height of the discharge end of table A A, a bar 9 is secured to the underside of same, and said bar projects out beyond the inner edge of the table and is furnished at its outer end with a set screw 9 which is screwed into the fixed bracket 9 se- "cured by bolts to gutter B and which supports the sliding hopper I and by screwing the said set screw 9 up or down the discharge end of table may be raised or lowered. To adjust the table bed set screws h are arranged to pass through the radial arms 0 and bear against lugs 7& formed on the gutter B.

To adjust the radial incline of the table A from its outer rim A to the gutter B a series of angle bars 6 are secured to the underside of table A, and are connected by screwed adjusting rods -e which pass through lugs 6 formed both on the underside of gutter B and on the'lower edge'of internal rib a said rods e being provided with adjusting nuts e see Fig.1 1. The height of the head or widest portion of the table A is adjusted by means of a bolt passing through a slotted bracket A secured 'to the radial arm C said bolt being screwed into the end of table.

Having now described my invention what I claim as new and desire to secure by Letters Patent is:

1'. A concentrator and amalgamator com prising a pan Volute shape in plan and having a somewhat flat fall helically which gradually decreases from its feed to its discharge end the inner edge of the said pan, said gutter extending from the discharge end to a point intermediate the ends of the pan and said pan being of channel 2. An amalgamator or concentrator comprising a panfof volute shape in plan and having a fall helically from its feed to its discharge end, a gutter connected to the inner the end of the gutter to the feed underside of the' edge of the pan, means for adjusting the height of the feed end in relation to the discharge end of the pan and means for raising or lowering the outer edge of the pan in relation to the inner edge thereof.

3. An amalgamator or concentrator comprising a pan of Volute shape in plan and having a fall helically from the feed to the discharge ends, means for adjusting the height of the feed end in relation to the dis charge end, adjustable means for inclining the pan radially, flexible suspending means for said pan and means for giving said pan a gyratory or eccentric motion.

4. In a concentrator and amalgamator comprising a pan of volute shape in plan and having a fall spirally from its feed to its discharge end, a gutter connected to the inner edge of said pan and means for adjusting the height of the discharge end of the pan in relation to the end of the gutter.

In testimony whereof I have signed my name to this specification in the presence of tWo subscribing Witnesses.

JOHN ROBERT HARRISON.

Witnesses:

BEDLINGTON BODYCOURT, W. J. S. THOMPSON.

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