US1297176A - Conveyer and separator. - Google Patents

Description

D. L. JOEHNCK.

coNvEYER AND sEPARAoR.-

APPLICATION FILED DECJZS. |918.

Patented Mar. 11, 1919.

' CONVEYER AND SEPARATOR.

APPLICATION F|LED DEC. 28. 191s.

Patented Mar. 11, 1919.

5 SHEETS-SHEET 2.

N b Kb *a D. I.. IUIHNCK CONVEYEH AND SEPARATOR.

APPLICATION FILED. DEC. 28.1918.

Patented Mar. 11,1919 Y 6 SHEETS-SHEETS.

D. L. JOEHNCK.

CONVEYER AND SEPARATOH.

APPLicATloN HLED 1150.28, 191s.

Patented Mr. 11,1919.

APPLICATION vFILED DEC.' 28 |918.

Patented Mar. 11, 1919.

@SHEETS-SHEET 5.

- D. I..10EHNCK.

CONVEYER AND SEPARATOR. APPLICATION FILED DEC.28. IQIII.

(i SHEETS-SHEET 6! Patented Mar. 11," 1919.

v material may be kept for storage.

DETLEF LOUIS JoEHNoK, or ROCKY Foren, ooLoRADol coNvEYER AND SEPARATOR.

l Speccaton of Letters Patent. Patented Mar, 11, 1919,

Application filed December 28, 1918. Serial No. 268.733.

T0 all whom it may concer/a.'

Be it known that I, Dn'rnnr ILHJOEHNGK, a citizen of the United States,"residing at Rocky Ford, in the county of Otero vand State of Colorado, haveinvented certain new land useful Improvements in Conveyers and Separators; and I do hereby declare the following to be a full, clear, and exact ydescription of the invention, such as will enable others skilled in the art'to which it apper-V tains to make and use the same. Y

My present invention relates `to improvements for `handling articles that are to be unloaded from wagons and raised toy a higher elevation so that they may be dumped into a railroad car, an elevated conveyer, or into a pile, stack, bin or pit, where such The apparatus hereinafter described may be adapted for the transfer of sugarbeets, tubers, coal stone, grain, or other similar material.

T e invention, however, is j especially adaptedy for luse in connection with the transfer of beets, tubers, or other material to which there isalways more or less dirt or trash attacherLYand from which it is desirable to remove such foreign matter as far as practicable. f

The invention is especially adapted to the handling of beets, ink which is is ycustomary to haul them to Cars for,l transportation. i kIt is necessary to weigh them and as such product contains more or less earth, trash, leaves and foreign matter, it is desirable to screen suoli beets before transporting'them to the factory,rthereby saving transportation of undesirable material and yalso removing such foreign material. Y Further, it is desirable to place in storage Afor future use and shipment a certain quantity Vof raw material to bey used in later process of manufacture. vrFor this purpose the apparatus is especially adapted as it may beused to pile material ,atj considerable height and the app paratus moved from place to place with ease r Vand thereby pile or store anV unlimited Aamount of `material at exceedingly-small eX- pense. y Y. f

Furthermore, the apparatusis adapted to take` care of the loose dirt or trash that falls from the beets and to carry it away, prefer- .ably in the kempty carts or cars fromwhich the beets have been fedtofthe apparatus.

This dirt' ,may `accunnilafn in Qbjectonabl@ Vso as to build up a large pile without the necessity for spreading the beets onthe pile manually.

Various other objectsof the present invention will be more fully understood after reference to the accompanying drawings, in which similar'parts are indicated by similar reference symbols throughout the several views, and in which Figure l shows va side elevation of the complete apparatuaone of the supports for the cart tilting apparatus being broken away for the sakeJ of clearness in the drawings.

Fig.V 2 is a plan view showing the complete apparatus with the various' parts thereof, but it does not show the wagons feeding the apparatus. Y f Fig. 3 shows a section along the line 3 3 of Fig. 1, and looking in the direction of the arrows, the parts being shown on a larger scale, and one of the feeding wagons being shownin the dumping position and another wagon being shown in the position to re' ceive the dirtscreened from the beets.

Fig. 3a is a detail showing one of the clutch mechanisms for operating one of the drums for tilting the corresponding'wagon bottom.

Fig. 3b shows a section along the line 3b-3b of Fig. 3a, and looking in the direction of the arrows.

Fig. 4 is a `sectional View of the delivery end of the apparatus, Ona still larger scale,

the parts being shown in section along the line H of Fig. 5, and looking in the diF rection of the-arrows.

Fig. 5 isa planyview of the delivery end of the apparatus, partsv being broken away. f Fig. 6 shows a section along thebroken line 6-6 of Fig. 5, and looking in the direcn tion of thearrows, and illustrates the means for diverting the dirt screened out to one side or the other of the apparatus.

Fig. 7 is a planview vof the parts shown in Fig. 6, with the grid screen broken away.

Fig. 8 shows a section along the line 8 8 ofmFig. 2, parts beingAv broken away, and illustrates the means` for deecting .Y the screened dirt from one side or the other oit the apparatus. n

Fig. 9 is a side view of the parts s4h o w n in Fig. 8, parts being shown as broken away.

Fig. 10 shows a side elevation, on a larger scale, ot a part of the forward end of the apparatus.

Fig. 11 shows a section along the line 11-11 of Fig. 10, and looking in the direction of the arrows, the supporting wheel being shown in elevation.

Fig. 12 shows a section along the line 12-12 of Fig. 10, and looking in the direction of the arrows.

Fig. 13 shows a section along the broken line 13-13 and 13a-13a of Fig. 10, and looking in the direction of the arrows.

Fig. le shows a section along the line 14-44 of Fig. et, and looking in the direction of the arrows.

Fig. 15 shows a section along the line 15-15 of Fig. t; and

Fig. 16 shows a section along` the line ie-ie of Fig. e.

A represents the main frame supported on the front wheel B and rear wheels B. These wheels are preferably mounted in swivel bearings so that the wheels may be turned like a caster :tor steering and guiding the main frame and the parts carried thereby.

Thus, referring to Figs. 1, 2, 10 and 11, T have shown the front wheel B carried by an axle 7), whose ends are journaled in the bearings c beneath the flange ring C which engages beneath an inwardlyprojecting annular flange of the supporting ring D, which is preferably -shaped in cross sec tion, and is secured to the main trame A.

The wheels B are similarly mounted on the axles journaled beneath the rings carried by the laterally projecting brackets or frames B2, as shown in Figs. 1 and 2.

The axes ot these wheels may be shifted through an angle horizontally in any convenient way, and suitable anti-friction bearings, not shown, may be provided between the flanges ot the rings C and D, or the corresponding supports t'or the rear wheels, but l have not deemed it necessary to complicate the specification or drawings by illustrating these details.

Mounted above the main frame A, near its forward end, are two tables FJ, which may be in the form of metal plates, or preferably wood faced with wear plates c, as shown in Figs. 10 and 13. Beneath these tables T provide a series of racks engaginovpinions F mounted on the shaft' f. This shaft is provided with a ratchet wheel F, which may be turned by the spring pawl j" carried by the hand Alever F2, but instead of rotating this shaft by hand it may be rotated by power it desired.

Fach table E has supporting blocks co, see Fig. 10, which rest on the side beams ot the conveyer, as will be hereinafter described, and each table may be held against longitudinal movement by rods F/ which pass through eye-bolts e2 carried by the table and through eye-bolts LO carried by the side bars h ot the conveyer iframe H, see Fig. 13. Y These rods have upwardly projecting ends t3 which serve as supports for the directing board FP, see Fig. 3, for purposes that will be hereinafter described.

Gr represents the main conveyer on which the beets or other articles to be separated are dumped trom the wagons, cars, or other vehicles used in transporting same. This conveyor is in the form of an endless apron passing over the drum AG near the front end ot' the main trame, as shown most clearly in Figs. 1, 2 and 10. The apron is tightened by any suitable adjusting means G", see Fig. 10, and passes beneath the idler g and above the cylindrical rollers g2, thence beneath the idler g', whence it travels over the double cone rollers g4, see Figs. 1, 4c and 14.

These rollers permit the belt to sag in the middle to torni a trough, as shown in Fig. 1st, the belt traveling between the side bars it of the conveyor trames H and H. The conveyor belt then passes over the upper drum G2, carried by the upper end ot the coiiveyer trame H, and then above suitable guide rollers g3 back to the forward drum G. T he drum u2 is mounted on the shaft go which carries the driving pulley C-x3,

which is driven as will be hereinafter described.

The conveyer iti-ame is composed of two members, the lower member H being secured to the main trame beneath the tables E, and the upper member H of the conveyer trame being hinged like a. deriick so that this member l'l may be swung up or down through a limited angle, as may be desired.

The Ytraine is raised or lowered by means et the cables i, see Figs. 1 and l, connected to any suitable hoist-ing mechanism not shown. f

'in order to take the strain oit the cables T, l provide an adjustable strut consisting orn the telescopic members d and J, which may be clamped at the desired position by means or' the set screws y'.

At the upper end of the conveyer frame H T provide a secondary trame H2 in which is mounted the shaft /lo ot' the grid screen K, having its sides formed with plates 7c, The cross bar 7c at the rear end et this grid is adj ustably suspended by the rods 7a2 screw-threaded at the upper end to engage a nut 7c3 resting upon the cross piece if carried by the arms H3 projecting rearward troni the conveyor trame ll.

B y screwing u) or easing cilg on these nuts 7a3, the inclination of the gridi'nay be varied within desired limits.

At the bottom of the grid i provide a Lio vley's g4, all as shown in Fig. 8.

canvas sampling chute L, which normallyy swings out of the way, as shown in Fig. 4, and whichmay be raised by means of the arm Z and' rod L, seevFig. l, so as to conduct a suitable :amount of the material being treated into the receptacle L2, such portion providing :samples of material handled after screening. f Thedirt and other foreign Vmat ter falling through the inclined grid K is deflected to one side ,or the other of the inclined V-shaped hood N, by means of Vone or the othery of the deflecting plates or apron M or M', see Fig. 6. Thereare two of these deflecting plates or apron hinged together, as at m, and connected to the pulley m which travels in the slotted cross bar H? carried by the conveyer frame, and the said pulley may be drawn to one side or the other by means of the hauling lines M2 or M3.

When the pulley m is drawn to the right, the -deiecting plate M deflects the'fdirt yto the inclined face a of the hood N, asshown in full lines in Fig. 6, and if the pulley be drawn to the opposite side of the frame, as indicatedk in dotted lines in Fig. G, the dirt will then be deflected to rthe inclined face n2 of the hood N. Y l At each side of the hood I provide endless conveyers Pand P, which receive the .dirt and carry it above theadjustable dumping platform E, so that it may be dumped into ythe carts, wagons, or -cars ateither side of said platform and carried away, as will be hereinafter described.

At their rear ends thesepconveyers P and VP are provided with belt tightening arrangements P", and at their front ends these conveyers arepivoted on the axle P2, and each conveyer passes over a drum P3 fast on said shaft P2. f This shaft is drivenby the pulley PF, as will be hereinafter described.

These conveyers dump the dirt'from the upper ends intofthe hopper' Q. The bottom of this hopper in theform of an inverted Vgsee Fig. 8, and the hopper is provided with two oppositely-disposed pockets g and g which are normally closed by the doors Q, hinged attheirbottms as at g to the Y hopper, which doors may be drawnup by the ropes or chains g3, passing over the pul- So as to prevent thel doors from swinging down too far, and to enable the doors to Constitute a chute as illustrated in dotted lines at the right of Fig. 8,'I provide projecting lugs "g2 atthe rear V,of each door,which enf gage beneath the bottomy of 4the hopper when 'the doorv is'swungl tothe open position ras shown in 8, and thus these doors serve as chutes to guide the rdirt into tliewagons, j

' *presumed to have been emptied andfready as shown in Fig.

f The three conveyers G, P and P niay be 'driven by means4 of a'singlecable or rope R, see Fig. passing over the driving pulley R', thence over the pulley P4 for driving the dirt conveyers P and P, thence under and over the idler R2, back to the pulley G2 for driving the conveyer'Gr,'thence over the idler R3 under the weighted pulley R4, which keeps the cable under tension, thence over the pulley R5, back to the driving pulley R. This driving pulley R is driven in any convenient way and by any suitable source of power.

I have shown, in Fig. l, an electric motor S driving the pulley S', which drives the pulley' R0 fast on the same shaft with the driving pulley R. Inl order to conveniently feed the products to be treated to the feed tables E and to usethe same power apparatus for this purpose as is used in driving the several conveyers hereinbefo-re referred to, I provide apparatus which 1will be hereinafter doscribed, with special reference to Figs. 1, 2, 3, 3a, 3b and 8.

There are two frames T adapted to be mounted on opposite sides ofthe feed table,

lwhich frames are mounted on pedestals t f shaft U, which shaft carries a winding drum VU von which the rope or cable U0 is wound.

There is one of these shafts U at each side of the apparatus, which shaft is connected at its inner ends by the univers-al joint u to the stub shaft U2, carrying the bevel gear U3 and the clutch members u2 controlled by the leverV a3 and the rope a4. These stub shafts U2 are also provided with band brakes U4 operated by rthe levers c45 and ropes'u, as shown in Figs. y3 to 3b.

These several ropes pass through leads in a control board Z, so that all may be. operated from the wagons as they drive up.

The bevel gears U3 are normally loose on the corresponding stub shaft U2, unless connected thereto by the clutch mechanism just tate by pulling on one or the other of the repesy usfsee Fig. 3, and the corresponding -'rope*U will be'wound up, tilting thewagon body` W of the vcorresponding wagon W, as 'shownto the-right of Fig. 3. The )opposite wagon shown in Fig. 3 is to receive such dirt as has accumulated in llO down so that the load in the wagon may be conveniently dumped on the adjustable feed table E.

X represents canvas apron adapted to be connected to the wagon, and to the directing boards El, and into which the fine dirt from the bottom of the wagon will fall through Vthe crack next the open side.

The operation of the complete apparatus is as follows rIhe wagons are driven up opposite the feed tables l, the rope U0 is hooked beneath the body of the wagon at one side, the opposite side of the wagon is let down, and the wagon is tilted. as shown t-o the right of F ig. 3. The contents of the wagon will be dumped on the feed floor, and the speed with which the load falls on the conveyer G will be determined by the size of the throat or opening between the two oppositely disposed sliding tables E. l

As the conveyer apron G passes beyond the frame l-l and reaches the frame l-l, its centre will sag down on the V -shaped rollers gt, forming a trough toward the center of which the beets or other products being treated will tend to settle by gravity. As the beets reach the upper end of the conveyer frame H they will be dumped from the conveyer on to the grid K, and will fall on the pile in the process of being formed, or samples may be selected from the sampling chute L.

rl`he dirt falling through the grid will be directed to one or the other of the dirt conveyers P Orl and will be carried upward and dumped into one side or the other of the hopper Q according to the position of the defiecting plates or apron M and M. rEhe dirt accumulating in the hopper Q, may be dumped into one of the wagons which has just been emptied, as hereinbefore described, and carried bach to the field, or other place where it is desired to deposit same. rlhis dirt may be released from the hopper by simply easing up on the corresponding rope Q3, and the weight of the dirt on the door will swing the same from the closed to the open position as shown to the right of Fig. S.

T he wagons are driven up into the spaces between the feed table E and the frame T.

When it is desired to move the apparatus for any reason, as from the growth of the lpile to which the products have been Yapplied, the main frame A may be moved to the desired position traveling on the wheels B, andthe frames 'l may also be moved along at the same time.

By having the ball and socket bearing for the shaft U at the top of each frame T, and also having the inner end of the said shaft connected to its corresponding stub shaft by a universal joint, it will not be necessary to have the shaft U in exact alinement with the w. 'lineaire corresponding stub shaft U2 and great flexibility of parts is secured. liVhen it is desired to move the apparatus for any considerable distance the shafts ll will be entirely dismounted and moved separate from the frames T.

rlhe main frame may be moved by a tractor, or by any suitable power, but l have shown in Fig. l a winch Y, driven by the motive power of the apparatus, to which a cable may be attached, and the cable may be connected to a stub-post, or other Xed body, and the wheels being set to the desired position, the main frame A may be moved in the desired direction by rotating this winch, as is well known in the use of dredge boats for digging canals, etc.

lt willV thus be seen that l provide in a single apparatus means for dumping the wagons, for adjusting the feed to the elevater, for elevating the products, separating the dirt and foreign matter from same, and carrying this dirt and foreign matter back to a hopper located above the wagons by means of which from time to time the accumulated dirt may be dumped into an empty wagon and removed.

lt will be obvious that various modifications might be made in the herein described apparatus, and in the construction, combination and arrangement of parts which could be used without departing from the spirit ofA my invention, and l do not mean to limit the invention to such details except as particularly pointed out in the claims.

Having thus described my invention what l claim and desire to secure by Letters Patent of the United States is 1. Apparatus of the character described comprising a dumping platform, an endless conveyer passing beneath said platform, an inclined grid at the delivery end of said conveyor, a hopper having an inverted V- shaped bottom beneath said grid, means for deflecting the foreign matter dropping through said grid to one side or the other of said hopper, as desired, a second hopper mounted above the dumping platform, and endless conveyors located at each side of the first mentioned hopper for carrying away the material screened through said grid and returning same to the second hopper, substantially as described.

Q'. Apparatus of the character described comprising a dumping platform, an endless conveyer passing beneath said platform, an inclined grid at the delivery end of said conveyer, a hopper having an inverted V- shaped bottom beneath said grid, means for deflecting the foreign matter dropping through said grid to one Yside or the other of said hopper, as desired, a second hopper mounted above the dumping platform, and endless conveyors located at each side of the rst mentioned hopper for carrying away the material screened through said grid and returning same to the second hopper, with a drivingengine and a cable or rope and pulleys operated thereby `for simultaneously Aoperating all of said conveyers, substantially as described. y y

3. Apparatus of the character described comprising a dumping platform having a feed slot therein with means for varying 1the wid-th of said slot, an endless yconveyer passing beneath said platform, an inclined grid at the delivery end of said conveyer, a hopper having an inverted V-shaped bottom beneath said grid, means for defiectingthe foreign matter dropping through said grid to one side or the other of said hopper, as desired, a second hopper mounted above the dumping platform, and endless conveyers located at each side of the first mentioned hopper for carrying away the material screened through said grid and returning same to the second hopper, substantially as described. y

4. Apparatus of the character described comprising a dumping platform having a feed slot therein with means for varying the width of said slot, an endless conveyer passing beneath said platform, an inclined grid at the delivery end of said conveyer, a hopper having an inverted V-shaped bottom beneath said grid, means for deflecting the foreign matter dropping lthrough said grid to one side or the other of saidfhopper, as desired, a second hopper mounted yabove the dumping platform, and endless conveyers located at each side of the first mentioned hopper for carrying away the material screened through said grid andy returning same to the second hopper, with a driving engine and a cable or rope and pulleys operated thereby for simultaneously operating all of said conveyers, substantially as described.

5. Apparatus of the character described comprising a dumping platform an endless conveyer passing beneath said platform, an inclined grid kat the delivery end of said conveyer, a hopper having an inverted V- shaped bottom beneath said grid, a pairy of deflecting plates hinged together and movable transversely for deflecting the foreign matter dropping through said grid to one side or the other of said hopper, as desired,

a second hopper mounted above the dumping platform, and endless conveyers located at each side of the first mentioned hopper for carrying away the material screened through said grid and returning same to the second hopper, substantially as described.

6. Apparatusk of ythe character described comprising a dumping platform an endless conveyer passing beneath said platform, an inclined grid at the delivery end of said conveyer, a hopper having an inverted V-shaped bottomfbeneath said grid, a pair. of deflecting plates hinged together and movable transversely for deflecting the foreign matter dropping through said grid to one side or the other of said hopper, as desired, a second hopper mounted above the dumping platform, and endless conveyers located at each side of the first mentioned hopper for p width of said slot, an endless conveyer pass-V ing beneath said platform, lan inclined grid at the delivery end of said conveyer, a hopper having an inverted V-shaped bottom beneath said grid, a pair of deflecting plates hinged together and movable transversely for deflecting the foreign matter dropping thro-ugh said grid to one side or the other of said hopper, as desired, a second hopper mounted above the dumping platform, and endless conveyers loca-ted at each side of the rst mentioned hopper for carrying away the material screened through said grid and returning same to the second hopper, substantially as described.

8. Apparatus of the character described comprising a dumping platform having a feed slot therein with means for varying the width of said slot, an endless conveyer passing beneath said platform, an inclined grid at the delivery end of said conveyer, a hopper having an inverted V-shaped bottom beneath said grid, a pair of deflecting plates hinged together and movable transversely for defiecting the foreign matter dropping through said grid to one side or the other of said hopper, as desired, a second hopper mounted above the dumping platform, and endless conveyers located at each side of the first mentioned hopper for carrying away the material screened through said grid and returning same to the second hopper, with a drivingengine and a cable or ropeand pulleys operated thereby for simultaneously operating all of said conveyers, substantially as described.

9. Apparatus of the character described comprising a dumping platform, an endless conveyer passing beneath said platform, an inclined grid at the delivery end of said conveyer, a hopper having an inverted ,V- shaped bottom beneath said grid, means for defiecting the foreign matter dropping through said grid to one side or the other of said hopper, as desired, a second hopper mounted above the dumping platform, having pockets with outwardly inclined bottoms on each side thereof, with hingedv doors normally` closing said pockets, and endless Clt conveyors located at each side of the first mentioned hopper for carrying away the material screened through said grid and returning same to the sec-ond hopper, substantially as described.

l0. Apparatus of the character described comprising a dumping platform, an endless conveyer passing beneath said platform, an inclined grid at the delivery end of said conveyer, a hopper having an inverted ll'- shaped bottom beneath said grid, means for deflecting the foreign matter dropping through said grid to one side or the other of said hopper, as desired, a second hopper mounted above the dumping platform having pockets With outwardly inclined bottoms on each side thereof, ivith hinged doors norr ally closing said pockets, and endless conveye located at each side of the lfirst inentioned hopper for carrying away the material screened through said grid and returning same to the second hopper, with driving engine and a cable or rope and pulleys operated thereby for simultaneously operating all of said conveyors, substantially as described.

ll. Apparat-us of the cl'iaracter described compris' 1g a dumping platform having a feed slot therein With means for .f'arying the Width of said slot, an endless conreyer passing beneath said platform., an inclined grid at the delivery end of said conveyor, a hopper having an inverted J -shaped bottom beneath said grid, means for deflecting the foreign matter dropping through said grid to one sice or the other of said hopper, as desired, a second hopper mounted above the dumping platform having pockets with outwardly inclined bottoms on cach side thereof, With hinged doors normally closing sait pockets, and endless conveyors located each side of the first mentioned hopper for carrying array the material screened through said grid and returning same. to the second hopper, substantially as described.

12. rpparatus of the character described comprising a dumpingplatform having a feed slot therein with means for varying the Width of said slot, an endless conveyor passing beneath said platform, an inclined grid at the delivery end of said convcyer, a hopper having an inverted V-shaped bottom beneath said grid, means for deflecting the foreign mattei' dropping through sai-:l grid. to one side or the other of said hopper, as desired, a second hopper mounted above the dumping platform having poclrets with outwardly inclined bottoms on each side thereof, With hinged doors normally closing said pockets, and endless conveyers located at each side of the first mentioned hopper for carrying away the material screened through said grid and returning same to the second hopper, with a driving engine ancL a cable or rope and pulleys operated thereby for :pesan/e simultaneously operating all of saidV conveyers, substantially as described.

13. ripparatus of the character described con'iprising a dumping platform, an endless conveyer passing beneath said platform, an inclined grid at the delivery end of said conveyer, a hopper having an inverted tshaped bottom beneath said grid, a pair of detlecting plates hinged together and movable transversely for deflecting the foreign matter dropping through said grid to one side or the other of said hopper, as desired, a second hopper mounted above the dumping platform having pockets With outwardly inclined bottoms on each side thereof, with hinged doors normally closing said pockets, and endless conveyers'located at each side of the first mentioned hopper for carrying away the material screened through said grid and returning same to the second hopper, substantially as described.

14. Apparatus of the character described comprising a dun'iping platform, an endless conveyor passing' beneath said platform. an inclined grid at the delivery end of said conveyer, a hopper having an inverted J- shaped bottom beneath said grid, a pair of deflecting plates hinged together and movable transversely for deliecting the foreign mattei' dropping through said grid to one side or the other of said hopper, as desired, a second hopper mounted above the dumping platform having pockets with outwardly inclined bottoms on each side thereof, With hinged doors normally closing said pockets, and endless eonveyers located at each side of trie first mentioned hopperfor carrying away the material screened through said grid and returning saine to the second hopper, vvith a driving engine and a cable or rope and pulleys operated thereby for simultaneously operating all of said conveyers, substantially as described.

l5. Apparatus of the character described comprising a dumping platform having a feed slot therein with means for varying the width of said slot, an endless conveyor passing beneath said platform, an inclined grid at the delivery end of said conveyer, a hopper having an inverted if-shaped bottom beneath said grid, a pair of detlecting plates hinged together and movable transversely for detlecting the foreign matter dropping through said grid to one side or the other 0f said hopper, as desired, a second hopper mounted above the dumping platform having pockets with outwardly inclined bottoms on each side thereof, with hinged doors normally closing` said pocket-s, and endless conveyers located at each side of the first, mentioned hopper for carrying away the material screened through said grid and returning same to the second hopper substantially as described.

l. apparatus of the character described llO comprising a dumping platform having a feed slot therein with means for varying the width of said slot, an endless conveyer passing beneath said platform, an inclined grid at the delivery end of said conveyer, a hopper having an inverted V-shaped bottom beneath said grid, a pair of deflecting plates hinged together and movable transversely for deflecting the foreign matter dropping through said grid to one side or the other` of said hopper, as desired, a second hopper mounted above the dumping platform having pockets with outwardly inclined bottoms on each sidethereof, with hinged doors normally closing said pockets, and endless conveyers located at each side of the first mentioned hopper for carrying away the material screened through said grid and returning same to the second hopper, with a driving engine and a cable or rope and pulleys operated thereby for simultaneously operating all of said conveyers, substantially as described.

17. Apparatus of the character described, comprising a feed platform, an endless conveyer passing beneath said platform, means for screening the foreign matter from the material on said conveyer, a pair of return conveyers for the screenings, and a driving engine with a cable or rope and pulleys operated thereby for simultaneously operating all of said conveyers, substantially as described.

18. Apparatus of the character described, comprising a dumping platform, an endless conveyer passing beneath said platform, means for screening the foreign matter from the material being treated, means for deflecting the foreign matter to one side or the other of said conveyer as desired, a hopper mounted above the dumping platform, and endless conveyers located at each side of said rst-mentioned conveyer for carrying away the screenings and returning same to the said hopper, substantially as described.V

Y 19. Apparatus of the character described,

comprising a dumping platform, an endless conveyer passing beneath said platform, means for screening the foreign matter from the material being treated, means for. deiiecting the foreign matter to one side o-r the other of said conveyer as desired, a hopper mounted above the dumping platform, and endless conveyers located at each side of said first-mentioned conveyer for carrying away the screenings and returning same to the said hopper, with a driving engine and Va cable or rope and pulleys operated thereby for simultaneously operating all of said conveyers, substantially as described.

20. Apparatus of the character described, comprising a main frame and wheels supporting same, a feed platform carried by said main frame, an endless conveyer also carried by said main frame and passing beneath said feed platform, means for driving said endless conveyer, a pair of auxiliary frames spaced away from said platform, flexible shafts each journaled at one end in said auxiliary frame and projecting inward above said feed platform, a winding drum on each shaft, and means for rotating said shafts operated by said conveyer driving means, substantially as described.

21. Apparatus of the character described, comprising a main frame and Wheels supporting same, a feed platform carried by said main frame, an endless conveyer also carried by said main frame and passing beneath said feed platform, means for driving said endless conveyer, a pair of auxiliary frames spaced away from said platform, flexible shafts each journaled at one end in said auxiliary frame and projecting inward above said feed platform, aV winding drum on each shaft, and means for rotating said shafts operated by said conveyer driving means, with clutch mechanism operable by hand for throwing either of said shaft r0- tating means into operation, substantially as described.

DETLEF LOUIS JO-EHNCK.

Copies of this patent may be obtained) for ve cents each, by addressing the Commissioner of Iatents,

Washington, D. C.

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