US855745A

US855745A - Radial ore-distributer.

Info

Publication number: US855745A
Application number: US35093007A
Authority: US
Inventors: Philip Argall
Original assignee: Individual
Current assignee: Individual
Priority date: 1907-01-05
Filing date: 1907-01-05
Publication date: 1907-06-04
Anticipated expiration: 1924-06-04

Description

PATENTED JUNE '4, 1907.

P. ARGALL.

RADIAL ORE DISTRIBUTER. Arrmonlon IILBD JAH.5,1907.

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noenfoz 3 Witnmca Q. mK/ZMM UNiTED s'rn ras PHILIP ARGALL, OF DENVER, COLORADO,

RADIAL OBE-DISTRIBUTER.

Specification of Letters Patent.

Application filed January 5, 1907. Serial No- 350.930.

To all whom it may concern.-

Be it known that I, PHILIP ARGALL, a citizen of the United States, residing at Denver, in the county of Denver and'State of Colorado, have invented certain new and useful Improvements in Radial Ore-Distributers, of which the following is a specification.

My invention relates to the mechanical distribution of metalliferous sands or pulverulent ores in the circular tanks employed in the lixiviation departments of cyanid plants and similar situations, in which it is important to lay the material in regular and uniform layers for treatment.

Said invention is an alternative means to that shown in my copending application Serial No. 317485, for the mechanical conveyance and distribution of such ores, in which class of devices the ore is brought to the tanks arranged in line, preferably by belt conveyers and delivered over the center of each tank, where a vertical rotatory shaft is provided carrying at its foot ahorizontal conveyer extending radially from the center to the circumference of the tank, which slowly revolves with the shaft similarly to the hands of a clock, and at the same time has a radial progressive motion in its conveyer portion which carries the sand outward to all parts of the tank as it progresses and revolves, means being provided to drop the sand in suitable proportional quantities as it travels, to insure its equable distribution in even layers throughout the tank.

This present invention consists in imroved means for taking the sand as it is brought to the center of the tank and delivering it proportionally so as to insure its uniform distribution in even layers as above described. I

In the-drawings forming a part of this specification; Figure 1 is a side view of my improved radial distributer. Fig. 2 is a bottom view of the adjustable sectoral slot of the delivery frame; Fig. 3 is a cross section of said slot, enlarged. Fig. 4 is a plan view enlarged of a portion of the conveyer belt, showing the mode of attachment of the scrapers.

Similar numerals indicate similar parts in the different figures of the drawings.

5 is a portion of the circular tank over which the distributer is located, 6 being a marginallflange on the edge of said tank on which the outer end of the distributer frame is carried and runs on rail 6. 7 is the frame of the distributer carrying the endless conveyer belt-8, which is supported and runs on rollers 9 located at suitable intervals. Said belt is mounted on pulleys 10, 11, the outer one (11) of which is preferably adjustable for tension. 12 is a wheeled carriage supporting the outer end of the distributer frame 7 to run on rail 6 mounted on the marginalfiange of the tank. Both the distributer frame and the conveyer belt derive their motions by means not novel to this invention, the primary element here shownbeing the rotatory shaft 14 located centrally overthe tank, said shaft being in practice carried on a movable carriage or so called tripper of which 15 is the bottom member. 16 is a stationary gear firmly secured to said bottom member. 17 is a rectangular spider frame secured to the foot of'said rotary shaft 14, to which is pivoted by bolts 18 the member 19 which carries the inner end of distributer frame 7 in such manner as to permit flexibility of movement to the outer end as it travels around the tank. 20 is a bracket arm branching from the spider frame 17, carrying a sleeve 21 in which is mounted the short up right shaft 22 having pinion 23 in mesh with stationary gear 16 and geared at its lower end to sprocket wheel 24, supported from frame 17 by bracket arms 25, which sprocket wheel is chain geared to sprocket pinion 26 on shaft of pulley 10, whereby the conveyer belt 8 is driven longitudinally when shaft '14 rotates while at the same time the distributer frame and belt move angularly around the tank by the rotation of shaft 14 to whichsaid frame is centrally secured at its inner end. 27 is a receiving hopper into which the pulverulent ores are introduced by means not herein shown, and 28 is a discharging hopper which delivers the said ore to the conveyer belt; all of which being foreign to this present invention need not here be more particularly described.

29 are scrapers, preferably of sheet metal, riveted or otherwise secured .to the outer surface of the traveling belt 8. Said scrapers are set on the belt preferably at an angle of from 10 to 20 degrees from the normal, in.

cliued toward the center to facilitate the movement of the sands toward the central line as they advance. The arrow indicates the direction of travel. These scrapers claw the sand from the delivery hopper 28 as they make the turn over pulley 10 and move it Patented June 4, 1997.

- but they are overlaid by the metal plates 33,

which extend at the edges slightly beyond the wooden support, as shown, to promote free discharge and avoid choking, particu larly near the center, where the sectoral slot is necessarily narrow.

The belt and the plane on which it travels are considerably wider than the sectoral slot, so as to carry suflicient ore outside of the slot near the center of the tank to keep the slot supplied as the material travels outward. The belt is preferably inclosed at the sides to prevent the material from falling outward, and these inclosures aid .in forcing the ore toward the slot under the action of the scrapers. The radial character of the edges of the slot insures the proportional discharge of the material in accordance with the expanding area to be covered as the material advances, with great simplicity and accuracy.

The mode of operation is as follows: Pulverulent ore being supplied to the apparatus by means not a part of this invention, falls into receiving hopper 27, and thence drops through spider frame 17 into discharging hopper 28. The machine being set in motion the rotating central shaft 14 carries with it the radial distributer frame in an annular sweep around the tank and at the same time through the connecting gears above described the conveyer belt 8 is caused to travel in the direction indicated by the arrow. The scrapers affixed to said belt remove the sands in suitable quantities and carry them outward along the metallic bottom of the distributer, where they fall through the sectoral slot in a constant shower in due proportional qkiliantity as they advance outward toward t e periphery, being thus evenly distributed around the tank by the circular sweep of the,

conveyer and the combined radial delivery. The material is thus deposited in uniform layers with mathematical precision. To insure that sufficient sand shall be carried to the periphery, and on the other hand that no surplus shall remain to be carried up over the foot pulley 11 the slot adjustment means is operated until correct delivery is obtained.

I claim,

1. In an ore distributor, in combination, a vertical rotatory shaft, a ho per in proximity to said shaft, a horizonta frame pivotally secured at one end to said shaft, an endless conveyor belt mounted on said frame, scrapers on the outer surface of said belt, gearing between said vertical shaft and said belt whereby the latter is caused to travel longitudinally when said shaft is in rotation, and an adjustable slotted bottom to said frame over which said scrapers travel, substantially as specified.

2. In an ore distributer, in combination, a circular tank, a vertical rotatory shaft mounted centrally over said tank, a mar inal trackway on the ed e of said tank, a ori-.

zontal frame pivotally secured at one end to said shaft, sustained at its other end by a wheeled support running on said trackway, an endless conveyer be t mounted on said frame having scrapers at intervals on its outer surface, gearing between said vertical shaft and said belt whereby the latter is caused to travel when said shaft isinrotation,

a bottom to said frame having an adjustable angular slot with radial sides, and means for adjustin the angular opening of said slot, substantially as specified.

v3. In an ore distributer, a conveyer frame, an endless traveling belt mounted on said frame, having scrapers attached at intervals to the outer surface thereof, a bottom to said frame having a sectoral slot therein over which said scrapers pass, and means to adjust the angular opening of said slot, substantially as specified.

4. In an ore distributer, a conveyer frame, horizontally disposed, having the bottom thereof formed with an adjustable sectoral slot, means to adjust the angular opening of said slot, a series of movable scrapers carried on said frame, moving over said slot, a vertical driving shaft for said frame, means for moving the frame around said shaft, and

-means to simultaneously move the scrapers radially relative to said shaft, substantlally as specified.

In testimony whereof I have signed my' name to this specification in the presence of two subscrlbmg wltnesses.

PHILIP ARGALL.