US527223A

US527223A - Ore-concentrator

Info

Publication number: US527223A
Authority: US
Publication date: 1894-10-09
Anticipated expiration: 1911-10-09

Description

Patented Oct. 9, 12894,

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`(No Model.)

PATENT y einen,

All/IOS CHURCH SPRINGER, OF SEATTLE, WASHINGTON.

ORE-CONCENTRATOR.

SPECIFICATION forming part of Letters Patent No. 527,223, dated October 9, 1894.

Application filed November 8, 1893. Serial No. 490.370. (No model.)

Seattle, King county, State of Washington,

have invented an Improvement in Ore-ConcentraterS; and I hereby declare the following to be a full, clear, and exact description l of the same.

My invention relates to that class of concentrators in which the ore-pulp and Water are fed upon the surface of an endless traveling belt having what is called an uphill travel, whereby the heavier and precious particles or sulphurets, clinging to the surface of the belt are carried up the incline over the head of the machina-and are Washed off in a suitable tank below, While the lighter and Worthless particles or tailings, together with the Water, pass down the belt and are discharged over its foot. These machines are commonly known as endless belt concentrators or vanning machines, and among various distinctions and differences between the several machines of this type or class, there are two which relate broadly to the construction of the Working surface of the belt. These are, first, a belt having a single, undivided or unpartioned surface, the Whole Width of the belt and bounded only by side flanges, and, second, a belt, the surface of which is divided by ribs or partitions into a number of parallel runs, channels or sluices extending in the direction of the travel of the belt, said belts having received the name of sluiced belts.

My invention consists in certain new and useful improvements in endless concentrator belts generally, and particularly in the class of sluiced belts,and in the drums and rollers upon which the belts are mounted, said improvements being hereinafter fully described and claimed, and having for their general object the provision of a concentrator of the endless belt class in which, by reason of the peculiar construction of the belt and ofthe drums and rollers upon which the belt is mounted, said belt will travel straight and true and be held in position under all the circumstances of its operation.

Referring to the accompanying drawings for a more complete explanation of my invention,-Figure 1 is a vertical longitudinal sect tion of my concentrator. Fig. 2 is a cross section on line wof Fig. 1. Fig. 3 is an enlarged section of a portion of the belt showing the manner of attaching the ropes.

A is an endless belt, here shown as a sluiced belt, its outer or working surface being divided by ridgesor ribs B into a number of fparallel channels, runs or sluices a, extending in the line of travel of the belt.

D is the beltcarrying frame, having a head or driving drum E, a foot or tail drum F, supporting rollers G for the upper told of the belt and rollers H for supporting, guiding and directing the lower fold of the belt in its proper course. i

I is the main frame upon which the belt frame is suitably supported,in order to have ,imparted to it such shake or vibration, as may be desired and as usual in endless belt eoncentrators. The details of this support, need not be herein particularly described nor illustrated, nor need the details of the shaking mechanism nor of the mechanism for iinparting an up-hill travel to the belt, be described or illustrated, for these form no part of my invention. Neither need the Water and pulp distributers above the head portion of the belt be shown as these are common and are Well understood.

It is of great importance to make the belt run straight and true upon its drums and rollers, especially when the belt is made of fabric such as canvas or a combination of canvas and blanket, or other material less stiff and rigid` than heavy rubber, as such.

belts have a tendency to work off and not run fair. To eect this object of guiding the belt and making it run true and straight, I provide its inner surface with a series of ribs or ridges C, extending in the line of travel of the belt, and I further form the drumsE and F, and the rollers G and Hwith circumferential grooves e fg and h, respectively. The ribs C engage the grooves of ,drums E, F and rollers G, and the ribs B engage the grooves of rollers H and thus the belt over its entire width and length is guided and held With precision in a straight, true course, at all times, and will not be deliected therefrom, no matter what may be its load nor the shaking motion imparted thereto.

This improvement, though applicable to IOC any belt concent'rator, is especially useful in a s luiced belt, and more particularly in a sluiced belt made of canvas or other fabric, such as I prefer to make my belt of. In this preferred form of belt a special novelty lies in the construction herein shown, and to which Ilay specific claim, namely, of making the outer` rib B and the inner rib O` directly opposite of the same single piece, such as a piece of rope, and'so sewing the rope to the canvas or rather the canvas to the rope, that a portion of the rope will project beyond the general outer surface of the belt to form the o uter rib or ridge B, and the remaining portion will project from the inner surface thereof to form the inner rib or ridge C.

The rope is preferably laid on the inner surface of the belt and is exposed therein, while its upper or outer projection has the canvas folded over it and hemmed to and through its sides in a plane parallel with the surface of the belt, thereby preserving the even surface of the canvas without exposing the rope.

I am aware that it is not new to sew ropes upon the surface of a canvas belt to form sluices thereon, and I am also aware of the use of a number of independent narrow belts passing over drums and rollers which are provided with flanges rising beside and between the edges of the separate belts to guide them, and I do not claim these as my invention, but

What I do claim as new, and desire to secure by Letters Patent, is

l. An endless belt fora concentrating machine, composed of canvas or other fabric and ropes sewed or secured thereto in such manner that each of said ropes projects from each ropes in a plane parallel to the general surface of the belt whereby a covered portion of the ropes projects from the outer surface of the belt dividing it into runs, channels or sluices, and an exposed portion of the ropes projects from the inner surface of Vthe belt,A

substantially as herein described.

3. In an endless belt concentraton'the combination of an endless belt composed of canvas or other fabric and ropes placed upon the inner side-thereof in the line of the belt travel, the canvas or fabric of the belt being stitched or secured to and through the ropesin a plane parallel to the general surface of the belt whereby a covered portion of the rope projects from the outer surface of the belt and an uncovered portion thereof projects from the inner surface,and drums and rollers upon which the belt is mounted, provided with grooves with which the ropes engage to guide the belt, substantially as herein described.

In witness whereof I have hereunto set my hand.

AMOS CHURCH SPRINGER. lVitnesses:

R. V. ANKENY, F. OHRISTIANER.