US710983A - Separator. - Google Patents

Description

Patented om. I4, |902. R. w. JESSUP. SEPARATDB. Apimcazion med Jan. e, 1902.)

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(No Model.)

UNTTED STATES PATENT OFFICE.

ROBERT W. JESSUP, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR TO SPIRAL BELT SEPARATOR CO., OF SAN FRANCISCO, CALIFORNIA-A CORPORA- TION OF CALIFORNIA.

SEPARATOR.

SECIFICATION forming part of Letters Patent N0. 710,983, dated October 14, 1902.

Application led January 6,1902. Serial No88,581 (No model.)

To rtl?, whom, it 11mg/ concern:

Be it known that 1, ROBERT W. JEssUP, a citizen of the United States, residing in the city and county of San Francisco, State of California, have invented certain new and useful Improvements in Separators; and I do hereby declare the following to be a full, clear, and exact description of the same.

My invention relates to that class of separators for grains and other small seeds in which an endless traveling screen is employed.

In a pending application, Serial No. 77,382, filed October 3, 1901, I show a separator in which the flexible screen is mounted to form a hangingV loop or bight, and a feeder is arranged to deliver the material to said loop or bight. My present invention involves improvements in this machine; and the object of these improvements is to adapt the machine to suit the varying conditions of the different materials operated upon and the different degrees of separation to suit circumstances, as I shall hereinafter explain.

My invention consists in means for varying the width of the loop or bight of the screen, means for varying its depth, means for varying the inclination of the uprising side of the screen, means for regulating the feed of the material, and generally in the novel disposition of the screen and of the several parts of the separator, all as I shall now fully describe by reference to the accompanying drawings, in Which- Figure l is a vertical section of my separator. Fig. 2 is a side view of same, partly broken. Fig. 3 is a top view of hopper K.

A is the frame of the machine. In the upper portion of the frame is mounted the driveroller B, Which is provided with pins h, engaging the screenmesh and insuring the travel of the screen.

C is an endless liexible screen. It may be of any suitable character; but the form of 45 the screen which I deem the best is a screen made of freely-interlaced spiral wires, forming what is commonly known as spiral fabric. This screen is a flexible one, and as I have fully illustrated it in my previous ap- 5o plication above referred to it is unnecessary to further describe it or to illustrate it in detail, as its construction forms no part of my invention, the only essential of the screen being that it be flexible, which qualification is sufficiently herein shown by its course. The course of this screen, as here shown, is downward to its lower portion, Where it forms a hanging loop or bght c, thence upwardly, forming an inclined portion c', thence a return portion c2 to the driver-roller, from which it is suspended and which causes it to travel in the direction indicated by the arrows. On the down-moving side the screen is guided and prevented from swaying by the guide-strip D, carried by frame A. On the opposite or uprising sideof the bight or loop aguide strip or bar E denes the Width of said loop or bight and. changes the course of the screen to the inclined portion c'. At the head of this inclined portion a'guide-strip F again changes the course of the screen-on its return to the driver-roller B.

Mounted in the upper portion of the frame A is a roller G, provided With pins g, which, entering the screen-meshes, clear them of any clogging particles. This roller is mounted in boxes g in sucha manner that the roller rests by gravity upon the screen, thereby constantly engaging it and clearing its meshes.

In frame A is mounted a tightener-bar H, which is adapted to slide toward or from the driver-roller and though pressing on the screen all the time is adapted by its movement and adjustment to vary the depth of the loop or bight c. Y v f The guide strip or bar E, which denes the Width of the loop or bight of the screen, is made adjustable in a direction toward or from the fixed guide 2D on the other side, thereby varying the Width of said loop'or bight. For example, if the bar E be moved closer to the guide D the Width of the loop or bight will be diminished. It' it be moved back, the loop or bight will be widened. Though the bar E may be made adjustable in any suitable manner, I have here shown a practical construction as consisting of a triangular frame I, in the front of which said bar E is carried. This frame I is provided with Vslots t' in its ends, which receive thumb-screws t', whereby the frame may be set when adjusted. This frame IOO I also carries at its top an inclined table J, c

which lies under the inclined portion c' of the screen, said table terminating at its foot just short of the bar E, whereby an opening at is left for the discharge of such particles as may fall through theinclined portion of the screen upon said table.

The guide-strip F, which terminates the inclined portion c of the screen, is mounted adjustably in frame A and is adapted to be moved out or in by thumb-screws f or other means, and this adjustment of said strip F provides for varying the inclination of said inclined portion c of the screen.

Though for the mere purpose of directing the course of the endless traveling screen the guide E and the tightener H might come in direct contact with the screen, I find it best to provide each of said bars with strips or pieces which make contact with the screen and in addition to guiding it agitate it as well. These agitators are shown at e on guide-bar E and at h on tightener-bar H, and they may be of any suitable character which by contact with the traveling screen will shake or agitate said screen. Vulcanized fiber or vulcanized rubber serve as proper materials for these agitator-strips e and h. Hard-wood will also serve, the idea being to employ some material capable of standing the frictional wear and hard enough to resist the blows or impacts of the raised surfaces or ridges of the spiral-fabric screen as they successively drag past in contact with the strips. The travel past these strips in contact therewith of the uneven-surfaced spiral-fabric screen and the resistance of said strips thereto cause the necessary agitation of the screen.

Secured to frame A is a fixed feed-hopper K, the throat of which is provided with a flange le.

L is a feed-chute, the upper end of which has a ange Z, which forms with the hopperflange a loose connection or joint of a telescopic nature, which will permit the inclination of the chute to be varied, while preserving its communication with the hopper. The chute L extends down at an inclination, and its discharge end terminates within the loop or bight c of the screen C, entering the open side thereof. The chute L is made adjustable in order to vary its inclination. For this purpose it maybe mounted in any suitable manner. The way here shown is by means of a slot Z in the chute and a thumb-screw Z2, entering said slot and the frame A. Though in some cases the chute L may discharge directlyinto the loop or bight, I iind it better to interpose an adjustable delivery or regulator spout M. This spout consists of a piece of iiexible material-rubber, leather, o.r other material*which, lying in the loop or bight, is adapted to conform itself to said loop or bight and to the various changes in its contour due to the several adjustments heretofore described. This delivery-spout lies upon the screen'within its loop or bight and directly -under the discharge end of the feed-chute L,

ness. `through the screen; but the thinner partiycles are thin enough to pass through if their length will permit. generally too long for the mesh, and if they lie flat they will bridge the spaces and will not pass th rough. By continually lifting the `mass and turning it over and over, as is done the rear or outer end of said spout having a Wall m to prevent the material from getting out at said end. Now by making this spout adjustable-that is, adapted to move transversely of the loop or bight farther in or farther out-the feed of the material can be regulated to suit circumstances, as I shall presently explain. It may be rendered adjustable in any suitable manner. struction is that here shown-namely, a bar N, to which said spout is secured, said bar being tongued and grooved into the base of guide D and provided with slots n, through which pass set-screws 'n' into frame A.

The operation of the machine is as follows: The screen, as before stated, travels in the direction indicated by the arrows. The material being led to the hopper K passes the flanges 1c and Zand flows down the chute L to the regulator-spout M. When the chute L is at a given pitch, the material retarded by the flanges la and Zis led by its natural flow to the edge of the spout M; but if a small feed be desired the sliding bar N is drawn back, thus drawing the regulator-spout M back until the feed is satisfactory. On the other hand, an increase of feed is obtained by moving or adjusting` the spout M farther into the screen loop or bight. If the material fed be wheat and a change to coarser material is desired, the chute L is raised at its upper end to change its inclination and the regulatorspout M is adjusted back toward the screen edge. The separation takes place in the loop or bight of the screen by the continual rolling action of the mass, the movement of which over and over is insured by the iiexible loop clinging to the mass on three sides and continually lifting it on the uprising side and turning it over, whereby the smaller particles drop through the screen-meshes, while the larger particles work along to the edge of the screen and are discharged, as I have described in my prior application above referred to. Now if the guide strip or bar E which defines the width of the loop or bight be adjusted inwardly-that is,toward the screen-by sliding inwardly the triangular frame I it Will narrow said loop or bight, and this adjustment has the eect of causing more of the long particles of the material to end up and pass through the screen. On the other hand, if by adjusting the frame I and the bar E back in the other direction the loop or bight be increased in width less of these long particles Will pass through. This will be readily understood if the principle of separation carried out herein be regarded. The particles to be separated differ in length and thick- The thicker particles Will not pass These thin particles are A good con- IIO very positively and effectively by the flexible loop or bight, these long slim particles are upended by the uprising side of the loop,- and in this position they Will pass through. Now if the loop be a Wide one its change from its bottom to its uprising side will not be very sharp. In the bottom the long slim particles lie fiat, and with a wide loop the mass will be gently carried around the curve to the uprising side and will slip back again Without much turning or rolling over. Consequently the particles Will retain their relative positions and the least number of the long particles will be upended. On the other hand, if the loop be a narrow one the change from the bottom to the uprising side is abrupt. The eifect of this sharp abrupt turn is to cause the loop to cling more closely to the mass, and its uprising side will more forcibly carry up the mass and to the greatest height and Will turn it more completely. In this turning and change of the relative positions of the particles the greatest number of long particles will be upended. Between these limits the adjustment of the loop maybe various to suit the particular material to be separated. Thus the degree or character of the separation may be varied to suit conditions, and a further variation may be had by varying the depth of the loop or bight. This regulation is effected by the adjustment of the tightener-bar II above. Any particles which drop through the inclined portion c of the screen are caught upon the table .I and are directed thereby to the openingj at the foot and are discharged through said opening. By setting in or out the guide-strip F the inclination of the inclined portion c' of the screen may be varied as may be desired for the particular separation required. The pins of the roller G clear the screen-meshes of clogging particles,the roller adjustingitself by gravity to the screen. The agitators c and 7L serve to keep the screen in constant agitation to assist the separation.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. A separatorconsisting of an endless traveling iiexible screen, means for supporting the screen to form a hanging loop or bight,a feeder arranged to deliver material to said hanging loop or bight, and means for varying the width of said loop or bight, substantially as described.

2. Aseparator consistingofan endless traveling fiexible screen, means for snpportingthe screen to form a hangingloop or bight,a feeder arranged to deliver material to said hanging loop or bight, and adjustable means for varying the Width of said loop or bight, substantially as described.

3. Aseparatorconsistingofan endless traveling flexible screen, means for supporting the same to form a hanging loop or bight, oppositely-disposed guides Afor defining said loop or bight, means for relatively adjusting said guides, and a feeder adapted to deliver material to the loop or bight, substantially as described.

4. A separator consisting of an endless, traveling, flexible screen, mounted to form a hanging loop or bight, a feeder arranged to deliver material to said hangingloop or bight, and an adjustable bar with agitators in contact with said lo'op or bight, and adapted to define and adjust its Width and to shake the screen. f

5. A separator consisting of an endless, traveling, flexible screen, mounted to form a hanging loop or bight, and thence guided at an incline on its uprising side, an adjustable frame having a guide adapted to define and vary the width of said loop or bight, and having also a table lying under the incline of said screen, and a feeder arranged to deliver material to said hanging loop or bight.

G. Aseparatorconsistingof an endless traveling flexible screen, means for supporting the same to form a hanging loop or bight, guiding devices above said loop or bight adapted to cause the screen to travel at an inclination on its uprising side, and a feeder adapted to deliver material to the hanging loop or bight, substantially as described.

7. A separator consisting of an endless, traveling, iiexible screen, mounted to form a hanging loop or bight, and thence guided at an incline on its uprising side, an adjustable guide to vary the inclination of the screen on said side, an adjustable guide defining and adapted to vary the Width of said loop or bight, and a feeder arranged to deliver material to said loop or bight.

8. A separator consisting of an endless, traveling, flexible screen, mounted to form a hanging loop or bight, and thence guided at an incline on its uprising side, an adjustable TOO guide to vary the inclination of the screen on said side, an adjustable guide defining and adapted to vary the width of said loop or bight, an adjustable table or chute under the inclined side of the screen, and a feeder arranged to deliver material to said hanging loop or bight.

9. A separator consisting of an endless traveling flexible screen, means for supporting the same to form a hanging loop or bight, a guide for the screen arranged above the loop or bight, means for adjusting said guide to vary the depth of the loop or bight, and a feeder adapted to deliver material to the hanging loop or bight, substantially as described.

l0. A separator consisting of an endless, traveling dexible screen, mounted to form a hanging loop or bight, an adjustable guide delining and adapted to vary the Width of said loop or bight, a second adjustable guide for said screen, and adapted, by its adjustment, to vary the depth of said loop or bight, and a feeder arranged to deliver the material to said hanging loop or bight.

ll. A separator consisting of an endless, traveling, flexible screen, mounted to form a IIOl hanging loop or bight, a feeder-chute adapted to deliver the material to said loop or bight, said chute being adjustable to vary its inclination.

12. A separator consisting of an endless, traveling, exible screen, mounted to form a hanging loop orbight, a feed-hopper, a feederchute, adjustably mounted to vary its inclination, and adapted to deliver the material to the hanging loop or bight, and a yielding connection between the chute and hopper adapted to permit the change in inclination of the chute While preserving the communication of said chute With the hopper.

13. A separator consisting of an endless, traveling, exible screen mounted to form a hanging loop or bight, a feed-hopper, a feederchute,'adjustably mounted to vary its inclination, and adapted to deliver the material to the hanging loop or bight, and the yielding connection between the chute and hopper consisting of the f reely-interengagin g or telescopic flanges.

14. A separator, consisting of au endless, traveling, flexible screen, mounted to form a hanging loop or bight, a feeder-chute entering said loop or bight, and an adjustable, delivery or regulator spout, lying in the. loop or bight, and adapted to receive the material from the feeder-chiite, and to discharge it into the loop or bight, at desired points.

15. A separator, consisting of au endless, traveling, iiexible screen, mounted to form a hanging loop or bight, a feeder-chute entering said loop or bight, and an adjustable, delivery or regulator spout, lying in the loop or bight and adapted to receive the material from the feeder-chute, and to discharge it into the loop or bight, at desired points, said regulator-spoutbeing of a iiexible nature, adapted to conform its contour, to that of said loop or bight.

1G. A separator, consisting of an endless, traveling, flexible screen, mounted to form a hanging loop or bight, means for guiding such hanging loop or bight, means adjacent said guiding means for varying the Width of said loop or bight, a feeder-chute entering said loop or bight, and an adjustable, delivery or regulator spout, lying in the loop or bight and adapted to receive the material from the feeder-chiite, and to discharge it into the loop or bight, at desired points, lsaid regulatorspout being of a flexible nature, adapted to conform its contour, to that of said loop or bight.

17. A separator, consisting of an endless, traveling, flexible screen, mounted to form a hanging loop or bight, a iixed guide for the down-moving .side of the screen, an adjustable frame carried by said guide, and having a iieXi-ble piece, forming a delivery or regulator spout, lying in and conforming to the bight or loop, and adjustable transversely therein, and a feeder-chute adapted to deliver the material to said spout.

1S. A separator, consisting of an endless, traveling, flexible screen, mounted to form a hanging loop or bight, a fixed guide for the down-moving side of the screen, an adjustable frame carried by said guide, and having a flexible piece, forming a delivery or regulator spout, lying in and conforming to the bight or loop, and adjustable transversely therein, and afeeder-chute adapted to deliver the material to said spout, said chute being adjustable to vary its inclination.

19. A separator, consisting of an endless, traveling, iiexible screen, mounted to form a hanging loop or bight, a driving-roller suspending said screen, a fixed guide for the down-moving side of the screen, an adjustable guide, with agitators, defining and varying the Width of said loop or bight, an adjustable guide to vary the inclination of the uprising side of the screen, an adjustable table, under said inclined side, a gravity-roller with mesh-clearing pins, engaging the screen above said guide, an adjustable guide, with agitators, bearing on the screen, to vary the depth of the loop or bight, and a feeder arranged to deliver the material to said loop or bight.

20. A separator, consisting of an endless, traveling, flexible screen, mounted to form a hanging loop or bight, a driving-roller suspending said screen, a fixed guide for the down-moving side o f the screen, an adjustable guide, with agitators, dening and varying the Width of said loop or bight, an adjustable guide to vary the inclination of the uprising side of the screen, an adjustable table under said inclined side, a gravity-roller with mesh-clearing pins engaging the screen above said guide, an adjustable guide, with agitators, bearing on the screen, to vary the depth of the loop or bight, a iixed hopper, an adjustable feeder-chute communicating with said hopper and adapted to have its inclination varied, and a flexible delivery or regulator spout, adjustable transversely in the loop or bight of the screen, and adapted to receive the material from the chute, and to deliver it to the loop or bight.

In Witness whereof I have hereunto set my hand.

y ROBERT W. JESSUP.

Witnesses:

C. W. GRAsHo, L. I-I. BRAND.

IIS'

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