US505169A - Ore-concentrator - Google Patents

Description

2 Sheets-Sheet A'1.

(No Model.)

`T MGGLBW ORE UONC'ENTRATOR.

No. 505,169. Patented Sept. 19, 1893.

(No Model.) m e sheets-sheet 2. T. MOGLEW.

ORB GONGENTRATOR. No, 505,169.` Patented Sept. 19, 1893.

NTTED STATES PATENT OFFICE.

THOMAS MCGLEVV, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR TO THE MCGLEW ORE CONCENTRATOR COMPANY, OF CALIFORNIA.

ORE-CONCENTRATOR.

SPECIFICATION forming part of Letters Patent No. 505,169, dated September 19, 1893.

Application filed April 2l, 1892. Serial No. 430,019. (No model.)

To @ZZ whom it may concern:

Beit known that I, THOMAS MCGLEW, a citizen of the United States, residing at San Francisco,in the county of San Francisco and State of California, have invented certain new and usefullmprovements in Ore-Coneentrators, of which the following is a specification.

My invention relates especially to concentrators employed for concentrating andsaving sulphurets and other valuable particles of metals contained in ores, known as the wet concentration and has for itsobject the production of a machine, of this character Whereiu many of the parts heretofore necessary may be dispensed with rendering the machine cheaper in construction, easier to use and more effective in operation, than those heretofore employed.

To this end my invention consists in a shaking table provided with peculiar and novel features or mechanism for imparting the necessary movements for separating the dbris or Worthless portion of the ore from the heavier or valuable parts, and deliver it in its proper condition at the head of the machine or table.

In the accompanying drawings forming part of the specification, like letters of .reference Wherever they occur indicate corresponding parts in all of the figures.

Figure l is a longitudinal section of my ore concentrator taken through line if y Fig. 2. Fig. 2 is a plan or top view. Fig. 3 is a section through line :c .fr Fig. l looking to the left. Fig. 4 is a view in detail.

A represents a bed-piece or platform on which the machine is mounted and a head piece or block A will support the frame B carrying the driving pulley B to which it is rigidly bolted.

To the frame B is hinged the main frame B2 which supports the shaking-table B3 and its operating mechanism and permits the latter to be raised or lowered from the lower end on the hinged joint C C that connects the two frames together.

Upon the main or supporting frame B2 is placed a longitudinal driving cam-shaft D operating in bearings on the cross-beams at the ends of the frame. Two cams D DX on said shaft operate between two vertical lugs or guide-plates H, H, which are bolted to the under side of the shaking-table B3 and as the driving shaft is rotated a transverse recipro eating movement is imparted to the table. A universal joint connects the upper end of the shaft D with the pulley driving shaft and a cam-plate Ffastened to theunder side of the shaking-table B2 is operated upon by a grooved pulley or wheel f turning around a pin or stud that is secured to the shaft D. A iiat spring K is placed across the lower end of the table B2 the tension of which is controlled by a set screw L having its seat in a cross-bar LX supported by the brackets or straps M which are bolted to the main-frame B2 and as the machine is operated the rotary motion of the grooved Wheel f through the medium of the cam-plate F together with the reaction of the dat spring K imparts a longitudinally reciprocating movement to the table B3 which is held down to its seat by means of a strap or bent bar B4 secured to the under side of the table and reaching across and underneath the shaft D.

The operation of the grooved wheel f upon the cam-plate Will be clearly seen in Figli in which the full lines indicate in plan view the position of grooved wheel, cam-plate and table B2 `at lits extreme longitudinal movement toward the left or against the flat spring K while the dotted lines show the same parts in the position of the table at its eXtreme longitudinal movement toward the right or the table at rest, the grooved wheel beginning about to operate on the cam-plate.

The tension of the fiat spring K is regulated by the set screw L to control the force exerted to impart the return movement to the table. This movement is arrested and the table brought to rest by means of a bumper I of rubber or similar yielding material fixed to a transverse bar IX which in turn is bolted to straps or brackets I2 secured to the head of the frame B2.

A series of friction rollers .I connected to the table B3 form the contact points between the table and the bumper by which means the friction produced between the bumper and the shaking table with its combination of movements is considerably reduced. The table rests upon four friction ball-bearings N,

IOO

N, N, N, placed at the four corners of the main or supporting frame B2 and the balls move in a cup-plate O O permanently Xed to the corners of the table and frame as shown.

In order to provide a means for adjusting the table to a, greater or less degree of inclination on its hinged or pivotal point, I have provided the vertical toothed racks P P confined to the outer face of the side beams of the frame B2 by guide-plates p and a transverse shaft P carrying the pinions P2 P2 to engage the teeth on the rack and the table will be raised or lowered at will, even during the operating of the machine by means of the crank arm P3 at one end of the transverse shaft. v

In practice the ore with Water is fed to the table in the usual way and motion is imparted to the machine by a belt connection with the pulley B which causes the longitudinal cam-shaft to revolve and the camplate near the head of the shaft to engage the grooved wheel on the pin orstud of the shaft and move the table backward against the [iat spring and compress the same until the extreme point of the cam plate leaves the grooved wheel when the reaction of the fiat spring will shoot the table forward, the friction rollers striking against the bumper at the head of the machine and thus percussion of the table is obtained in a longitudinal manner while the cams on the driving shaft will impart a transverseA reciprocal motion to the table simultaneously or nearly so. This combination of movements to which the shaking table is subjected produces a spreading out of the ore and water over the Whole width ofthe table, allowing the Water and lighter worthless particles as sand and dbris to gravitate toward the lower end of the table and to accumulate in a trough R from which it is run off through a pipe connected to the bottom of the trough, while the heavier and valuable particles are carried upward into a trough Q at the upper end of the table, thus separating the gangue from the concentrates which can easily be gathered in said trough to be subjected to further treatment.

The provisions for adjusting the inclination of the shaking table render a ready means to prevent the valuable particles from joining the slime in a-downward movement.

Having thus described my invention, what I claim, and desire to secure by Letters Patplate fixed to the under side of the table engaging a grooved pulley or wheel on the longitudinal shaft, arranged and operating in the manner, substantially as set forth and specified.

2. A vibratin g ore concentrator having friction rollers or wheels at the upper end of the table and a bumper fixed to the frame in line with the friction Wheels and engaging the bumper, a resilient spring regulated by a set screw or bolt, and means for vibrating said table, as described.

3. In an ore concentrator the combination with a vibrating table having a transverse reciprocal and a longitudinally reciprocating movement of the friction rollers engaging a bumper fixed to the frame and in line with the rollers, of a resilient spring and a set screw, as and for the purpose set forth.

4. The combination in an ore concentrator of a driving pulley, a supporting fra1ne,a vibrating table pivoted thereto, a longitudinal cam shaft having a universal joint connecting with the driving pulley shaft, cams on said shaft working in guides secured to the under side of said table, and a cam plate fixed to the under side of the said table engaging a grooved pulley or wheel on the longitudinal shaft, arranged and operated as and for the purpose set forth.

In testimony that I claim the foregoing I have hereunto set my hand and seal.

THOMAS MCGLEW. [L s] Witnesses:

G. W. M. SMITH, CHAs. E. KELLY.

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