US916625A - Separator. - Google Patents

Description

R. STEIN.

SBPARATOR.

APPLIUATION FILED DBO. 4, 1907.

Patented Mar. 30, 1909.

2 SHEETS-SHEET 1.

R. STEIN.

SEPARA'IOR,

APPLICATION FILED DEO.4,1907. 91 6,625. Patented Mar. 30, 1909. 2 SHEETS-SHEET 2.

v 11' J J 6 5 1/3 WITNESSES INVENTOR- Alforneyf 4 UNITED STATES PATENT OFFICE.

ROBERT stain, or SEATTLE, wismncron.

samm'ron.

Specification of Letters Patent.

Patented March 30, 1909.

Application filed number 4, 1007. Sex-151110. 405,107.

To all whom tt may concern:

it known that I, Rosana Srnm, a citinen of the United States of America, and aresident oi" the cit of Seattle, in the county of King and time of. Washington, have invented certain new and uselul I'mproveme'nts in Sglparators, of which the illowing is a speci ation.

My invention relates to certain improve merits in separators, particularly adapted for separating ore and has for its primary object to provide an efficient apparatus of this character wherein the materials are separated in traveling across the path of a current of air.

A further object resides in the provision of suitable mechanism by which the materials are first segregated by screens and the graded lots deposited into separate bins, whereby materials of predetermined size or volume can be fed for separation by the air.

With the above and other objects in view, to be referred to as the description proresses, the invention resides in the structural eatures, arrangement and combinations of parts, hereinafter described and more,

particularly pointed out in the claims hereto annexed.

Referring now to the accompanying drawings, 1n which like numerals of reference indicate like parts throughout the several views: Figurel is a view shown in vertical section of an apparatus constructed in accordance with my invention. Fig. 2 is a section taken on line 22 of Fig. 1, and Fig. 3 is a horizontal sectional view of the apparatus, taken on line 3-3 of Fig. 1.

eference numeral 1 indicates a suitable casin in the upper portion of which are a plura ity of screens or sieves 2, arranged one above the other and connected at their ends to ri 'd members 3, pivoted at their upper en s, as shown. These sieves or screens form the grading means of the apparatus, the upper screen being of comparatively coarse mesh, and those below the same being each formed of a finer mesh than the lpreceding one, and at the bottom a solid we 4 is provided, the same being secured to'members 3. This grading means is 'swun so as to agitate the materials deposite thereon by a suitable spring 5, and suitable cam wipers 6, fixed to a shaft 7, to

which-power is applied, as by a belt (not shown), said cam wipers being adapted to engage the depending extension of one of the members 3, as clearly shown in Fig. 1, and swing the grading means in one direction, and said spring returning the grading means to its normal position, as the wiper moves from engagement with member 3, as will be readily understood.

Screens 2 are set at a suitable inclination, and their lower or discharge ends project into bins 8, in which the graded materials l are stored. Bins 8 are provided with doors 9, which normally are closed so as to prevent the materials being discharged into the hopper 1'0. Hopper 10 has a discharge mouth provided with a suitable gate 11, which may be adjusted to vary the width of the stream of material falling from the hopper. Said gate, as now considered, is supported iorswinging, and on the projecting end of one of its pivots is provided with a worm gear, with which a worm 11., meshes. Worm 1.1 is fixed to a shaft 1.2, which is cou led to a suitable shaft 14, arranged to be wit in convenient reach of the operator, by suitable beveled gears, as shown.

Reference numeral 15, indicates a fan, j which may be operated in any desired manner. Communicating with the outlet 0 ening of the casing of said fan is a pipe 16, aving a valve 16", throu h the medium of which the discharge of air through the said pipe is controlled. Pi e 16 leads to a flared mouth 17 in front of w ich the material falling from hopper 10 passes. As now considered, the upper wall of mouth 17 extends to and is secured to said ho per at a point in proximity to the mouth t ereof (see Fi 1) whereby the material immediately upon eaving the hopper is subjected to the action of the air. W1thin the mouth 17 are suitable deflectors 18, which distribute the air both vertically and horizontally in an even manner. In the lower portion of easing 1 are bins 19, arran ed longitudinally of the path of the air disc arged by the fan, and below the same, said bins bein provided with deflectors 20 hinged to the side walls of the bins, so as to be capable of being adjusted more or less over the adjacent bins, as is found desirable to cause the falling materials to be caught in predetermined bins.

In operation, one of the doors 9 is opened, and the contents of its bin allowed to discharge into hopper 10. The valve 16 is now operated to regulate the force of the air relatively to the grade of material to be fed from the hop er. Then gate 11 being 0 ened, the materia falls in sheet form from t e hopper across mouth 17. The lighter materials will obviously be deflectedfarthest in the direction of the travel of the air and be caught in those bins 19 arranged farthest from mouth 17, while the heavier particles will be cau ht in the nearer bins, as will be readily um erstood.

The invention is articularly ada ted for separating gold and other minera s from sand and powdered uartz or gravel, but I do not wish myself to e understood as limiting my invention to this articular use. The material to be graded is ed by gravity down an inclined chute 21 and onto a fixed screen 2, arranged directly over screens 2, and such material as falls through said screen 2 will be graded, as previously described. The remainder passes from screen 2 and is referably caught in a suitable receptacle or in 22.

l-Iavin thus fully described my invention, what I clltim as new and desire to secure by Letters Patent of the United States is 1. A separator comprising a hopper, a gate for controlling the discharge of material therefrom, means to grade the material, means to control the graded material wherebv the different grades of material can be dis- 0 arged into said hop er one at a time, means to direct air for discharge through the material falling from said hopper, means to vary the force of the air, and means to catch the falling material.

2. A separator comprising a hop er, a gate for controlling the discharge 0 material therefrom, a plurality of bins communicating with said hopper, means for normally preventing material falling from said bins lntov said hopper, a plurality of screens arran ed one above the other and arranged to ischarge each into its own bin, means to direct air for discharge through the material falling from said ho per, and means arran ed lengthwise of t 1e ath of said air and be ow the same for catchlng the falling material.

Signed at Seattle, Washington this 20 day of November 1907 ROBERT STEIN.

Witnesses:

ELYNE E. WALIN, FRANCES H. RICHARDSON.

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