US1335531A - shimizu - Google Patents

Description

H. S. SHIMFZU.

L AL HANDLING PLANT.

5 SHEETSMSHEET Patented Mar. 30,1920.

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H. S. SHIMIZU.

COAL HANDLING PLANT.

APPLxcATloN man MAY sa, :918.

1,335,531. Paf/ema Mar. so, 1920.

5 SHEETS-SHEET 2.

H. S. SHIMIZU.

COAL HANDLING PLANT.

APPLICATION man MAY 1s. 191s.

Patented Mar. 30, 1920.

5 SHEETS-SHEET 3.

A 15m/envo? ./Yokson /zzm H. S. SMMIZU.

CUAL HANDLING PLANT.

APPLxcATwN man MAY 18. Isls.

1,335,531 Patentd Mar. 30, 1920.

H. S. SHIMIZU. -CM HANQUNG P WT APPLmATloN mi@ Muis,

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HOHSON S. SHIMIZU, 0F CHICAGO, ILLINOIS, ASSIGNOR T0 ROBERTS & SCHAEFER COMPANY, OF CHICAGO, ILLINOIS, A OOBPORATION 0F ILLINOI Y GOAL-HANDLING PLANT.

Specication of Letters Patent.'

Patented Mar. 30, 1920.

Application filed May 1B, 1918. Serial No. 235,234.

1'0 aM ywhom zt may concern:

Be it known that I, HoHsoN S. SHIMIZU, a subject of the Emperor of Japan, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain` new and useful Improvement in CoalHandling Plants, of which the following is a specification.

` My invention relates to coal handling plant and associated parts and apparatus', and has for one object to provide a new and improved form ot coal handling device, which will take the coal as it is dumped from the coal car, measurevit` carry it up and store it in a storage bin whence itmay be discharged into the locomotive tender for coaling locomotives. Among the objects of my invention arc to provide a smooth runningr lsatisfactory dei'izc of the so called shallow pit type wherein a minimum amount of adjustment and repair-is necessary, and wherein a pit of minimum depth ma be used. Many other objects will appear rom time to time in.my specification. The in-` vention is illustrated diagrammatically in the accompanying drawings, wherein- Figure l is a side elevation in part section of the whole apparatus with much of the plant omitted for clearness;

Fig. 2 is a section on an enlarged scale along the line 2-2 of Fig. 1; Y

Fig. 3 is a side elevation in part Section of the receiving and measuring apparatus and associated parts at the lower end of the hoisting system;

Fig. 4 is a view similar to F ig. 3 showing the parts in a different position;

Fig. 5 is a detail of the hoisting bucket as it dumps;

Fig. 6 yis a section alonltr the line 6 6 of Fig. 4.

Figa 7 is aplan view of the cradle with parts in section along the line 7-7 of Fig. 8, showing the hoisting,Ir bucket rollers in position oi' rest thereon by dotted lines;

Fig. 8 is a section along the'line 8-8 of Fim 7.

iig. 9 is a section alongr thc` line 9 5) oi Fig. 8.

i"ig. l() is a detail showinglr` part of the guidi track.

[like parts are indicated by like characa ters in all the drawings.

A is: `a workingr pit, .X1 a shed covering it containing iucominpr and unloading trai-ks A2.l Ai is a hoisting tower leading up from the pit A and the shed A1. A isthe stor-` age bin, having dischar e chutes A5, A which may be manipulate to dischar e coal into a locomotive tender on the trac s A, A, A7 is a spiralstaircase leading up- Wardly along the tower A from4 th ground to the motor room Asst the top. AA is 'an electric motor driven hoisting winch or hoist of any suitable type. It is adaptedto move the hoisting bucket A1 uprand down, the track A11 on the tower. Inthe present instance I have shown it `as a friction'drive,` wherein a hoisting cableV Alpass'es over sheaves A A, the cable having a counter weight A15 at one end and being attached to the bucket A10 at the other end".A The bucket is of course expected to be filled or loaded from the side A" but it vdischarges through theI port A17.' This port A is closed by a combined chute and door A lpivotedat the lowestpoint of the bucket in such manner that when it opens it causes the contents of the bucket to discharge at one side of the path thereof. This door is held shut while the bucket' is traveling because the lroller A19 engages a track A. `running up parallel with the bucket track, as shown in iigs. l and 4 for instance. Whenvthe bucket reaches the upper end of its excursionthe track terminates in a short section A21 at right angles to the path of thebucket. The roller travels out along this path and the door is open. It sometimes happens however that the bucket goes up a little farther than it is intended to, and in order to prevent the door from swin in down too far, the links A22 are provided. gFliese links are pivoted on the bucket and slotted as at A23 to en age pins A24 on the bucket, so that no inter `erence is offered to the closure of the bucket, 'but the opening of the bucket too far is Ina-de impossible.

Located-within the pit A, but terlninatin above the bottom thereof, is a hopper into which the coal ca may dischar e their load. This hopper ha an inclined ottom, and terminates at the bottom in a discharge gate B1.` This gate is adapted to be. closed by a sliding door B2. This sliding door is mounted upon rollers B3, adapted to travel :dong a track Bf. B5 is a counterweiglit which normally holds .the door in the upper closed position, the counterwcight being connected by means of a cable B" with the upper4 side of the sliding door. This door moves back md forth across the front of the gate along a line substantially normal to the path of material outwardly through the ort, so that a minimum of resistance is ofllred to the closure of the door or gate, and so thatV the How of material itself does not thrust a ainst the gate and tend to open it or to ho d it o en. This ate is opened b the downward y moving ucket so that it o ens as the bucket comes vinto register with tie port as will farther on be pointed out. These tracks B are mounted u on a frame` work B1, B', which rameworr is in turn mounted upon tracks B, B. These tracks Ba B extend upwardly from near the bottom of the pit A up to the base of, the tower A". Immediately below the base of the tower A3 they are curved as indicated at B1", B11, until justI at the bottoni of the tower a tangent to them, is a vertical line parallel with the track A11. Guard tracks B12, B13 are above the tracks Bs, BD and are associated with them so as to forni channels to guide rollers B, B15, which sup ort a cradle B16. These tracks B8, B, B11, 13 are mounted upon a framework or structure B17 in the bottom of the it.

Tlie cradle B1G enga ing the tracks Il, B", and. held upon them y the guard rails as indicated, is constrained to a parallel uiotion, and when the cradle tra sels down these tracks it moves over under the hopper B, but the cradle does not rotate. it merely comes down and is moved to one side. This cradle has at one side thereof an u pw rdly extendin track C, adapted to come ih-.to' ter wit the track A1", and form a continua tion thereo C1, C1 are cables extending up -over sheaves C2, C, C4 and terminating in counter weights C5 which tend normally to hold the cradle in the upper position `immediately below the lower end of the track A1. f

channels between which tra vel rollers C, y f of the bucket A1". It will be noted that t e rollers C1 only project a short distance iiito the space between the track channels, and the rollers C1 extend a lon" distance in. These tracks A11 are bent to the right as indicated in Fig. 4 over toward the hopper, and terminate in sections lilies ,tangent to which 4are parallel with the tracks B8, B" where they pass under the hop er, The' flanges are cut away, however, at s so that the rollers C may )ass straioht through, but the rollers C7 Wil be guiied ovcrvto the ri ht. The cradle B is so arranged that w en the bucket A is lowered thel roller CD on the bucket will rest on the cradle B1", and the same is true of the roller B10. he bucket will therefore be supported on the cradle in an upright position. As soon as the load settles down on the cradle, the cradleV travels down lifting up the counter- The track A11 is made up of two, paralil weight and moves over toward the right. The bucket is steadied and guided by the upper roller C7 lfriving a three point support. for the crad e until the cradle rollers are in those parts of the tracks where they are parallel to each other. Then the cradle is constrained to a arallel motion, and at that time the roller (ll passes out away from the curved track portion and is clear of the track altogether. As the cradle goes on with its descent, it engages theupper edge of the ate and moves it down and the bucket adua ly comes into register with the ort ischarging from the it and the coal rushes in to fill the bucket. that only a predetermined the coal quits running. If the operator then lioists up on the bucket, the bucket would be moved up across the line of travel of the coal, the gate coming u i to close oli' the coal, the bucket will gradually enga e the tracks and when the cradle reaches te upper excursion the bucket will leave it and pass up along the tracks.

Great importance must be attached to the arrangement for starting the bucket and cradle down along proper lines. noted at first that the curved tracksfalon which the two rollers ofgthe cradle travl curved lower extension of the hoisting bucket tracks, Thus there is a three point support for positioning` the bucket and cradle and preventing rotation, while permittin movement. A 'soon as the cradle rollers ave reached a part of the two tracks where the are pai-al el the cradle is held into paralelism by,.t ie engagement with the tracks and then the bucket roller disengages or leaves the lcurved downward extensions of the hoisting tracks.

It will be noted of course that the bucket dump door is held shut lirst by the trackrunning along parallel with the hoisting track and then bythe extension on the cradle which is in continuation of the bucket holding track.

It will be evident that while I have shown in 'niy drawings an operative device, still many changes might be made both in size, shape and arrangement of parts without departing material y from the spirit of my invent-ion, and I Wish therefore that my drawings be re arded as in a sense diagrammatic. The rol ers C10, C10 are guided to position of rest on the cradle by the two short tracks C11. C11 projecting up* from the cradle B1'. 'lhe use and operation of my invention are as follows.'`

Loaded coal cnrs are any suitable manner, and the hopper in the run on to the rereiving tracks and they are then dumped in` ioo los

the bucket as it rests upon the the door, gradually which controls pit is filled' with the coal. The motor the hoisting bucket is then put into operation, and this bucket is caused to reciprocate or travel up and down from the top ofthe tower to the bottom. lhen the bucket is lowered the Wei ht of:

cradle, 1s sufficient to overwei h the counterbalance which normally holds the cradle up, and the bucket and cradle will move down and to `one side without rotation of the bucket but merely by a translation oi it. As the bucket passes down into register with the discharge'port or opening at the bottoni ot the hopper, theY cradle which has engaged forces that down overbalancing the counterweight which tends normally to hold it up, the door being so positioned-that as it opens.l and as the coal commences to flow, the Vcoal will How into the bucket. The bucket stays at the bottom dumped out and the and the loaded of its excursion with the door wide open and the opening of the bucket in register with the opening of the hopper until .the coal has completely lilled the bucket, and no further flow can take place. The operator then either by hand or by -an automatic mechanism not here 1 trate'd, starts the bucket up. As it gd rup the door gradually closes off, traveling across the line ot travel of the coal column as 4it runs from the hopper to the bucket a` the door finally completel closes off the ow of coal ucket goes/on up. When the 4cradle reachesthe upper end of its excursion,v the bucket leaves it and 'goes on in a vertical direction until it reaches the. top of the tower. 'At the top of the tower the door closing roller passes out on to the horizontal extension of the holding track, the door opens forming a chute, the coal is bin is filled?` By keeping count of the number of trips the bucket makes, you have an accurate record of the amount of coal. handled. i The operation so far as the movement of `thebucket into and out of register with the j hopper' fte.'

It will and so far as the opening and closing of the door is concerned, is entirely automatic, and requires no attention from the operator.

be noted that the hoisting engine is up at the top of the tower. lt may be a i steam engine or would Vbe preferably an electric motor as indicated. This electric not be equipped with automatic` machinery for reversing it to move the bucket back and forth. Probably -it would be,i,but that forms no part of my invention, and is so not illustrated.

It is necessary always to have a counterweight to balance the bucket when a single bucket is used, as is the case in this invention, and therefore the tower must be stron g enough to support the weight of the counterweight and ot' the bucket. Moreover in actual practice the operating room being up at the top, is less likely to be infested by trumps and loafers, and that in railroad practice has developed into a very important phase of the situation.

The bucket is substantially balanced, but if it by any chance should be out of balance` or in order t0 make sure of absolute accuracy in running, the two rollers on each side engaging the tracks forming a channel insures that the buckets will travel along the predetermined path. There will be ot course a slight pressure on the sides, particularly when the bucket is loaded, caused by the sliding oi the door roller along the holding or closing track, but this pressure will be so slight as to be of no particular moment and can easily be cared for in the design.

l.. In a coal handling plain. a bucket having a discharge port, a pivoted closure therefor, tracks along which the bucket travels. a separate track parallel therewith engaging and retaining the closure .in closed position, a movable cradle adapted to engage the bucket at one end of its ecursion along bucket tracks and to guide it away therefrom and means on the cradle for keeping the closure closed.

Q. In a coal handling plant a bucket having a discharge port, a pivoted closure there- 5l. A conveving bucket. `vertical tracks f along which it travels, a cradle adapted to carry it, inclinedA parallel. tracksA along which the cradle travels. curved tracksextending upwardly toward the flower ends of the vertical tracks in continuation of the inclinedtracks. rollers on the cradle, means associated with said curved Jand inclinedtracks for holding the. rollers thereupon, rollers on the bucket adapted to engage the` vertical tracks, curved tracks downwardlv and sidewardlv extending from the vertical tracks adapted to be engaged by one of the rollers on the bucket to give a three-point support to hold the cradle and bucket. against rotation until thc cradle rollers reach the parallel portions oi`.tl1e inclined tracks. the cradle tracks being more widely separated at the top than below.

l. The` conibination with a hoisting bucket of vertical tracks. menus for moving it ,tlicrealong rollers projecting out- 1,aas,ss1

wai-diy from the bucket and engaging said tracks, the lower rollers being shorter than the upper, curved tracks extending downwardly and outwardly from the end of the vertical tracks, the lower sides. of the curved tracks being cut away to permit the shorter lower rollers to pass straight through, the upper rollers being of such length as to remain in operative engagement wh the curved tracks.

5. The combination with a hoisting bucket of vertical tracks, means for Inoving it therealong, rollers projecting outwardly from the bucket and engaging said tracks, the lower rollers being shorter than the upper, curved tracks extending downwardly and outwardly from the end of the vertical tracks, the lower sides of the curved tracks being cut away to permit the shorter lower rollers to pass straight through, the

upper rollers being of such length as to re-V main in operative engagement with the curved tracks, a carriage 'oi' supporting and guiding the bucket downwardly and to one Side of the lower ends of the vertical tracks, the long rollers on the bucket being adapted to remain in engagement with the curved bucket tracks during the earlier portion of the movement of the carriage the bucket being adapted to rest upon the carriage.

A. coal handling plant ciiniprising, a receiving hopper having a discharge port, a hoisting and measuring bucket, means foi' moving it vertically vtoward and from the hopper, separate means at the lower end of its excursion for movi-:ig ii horizontally under the hopper into regista with the port while continuing its ldownward movement` said last mentioned means including a plurality of parallel tracks, rollers supporting the bucket and means for maintaining said .rollers in the operative position upon the tracks said tracks being out of parallelism immediately adjacent their upper extremities and additional means for holding the bucket against rotation until the rollers have moved onto the parallel track sections.

coal handlin plant comprising a a hoisting and measuring bucket. means for moving it vertically toward and from the hopper, separate means at the lower end. of its excursion for moving it horizontally under the hopper into register with the port While continuing its downward movement, said means including a plurality of parallel tracks, rollers supporting the bucket and means rfor maintaining said rollers inthe operative position upon the tracks, Said tracks being out of parallelism immediately adjacent their upper extremities and additional means for holdingr the bucket against rotatif until the rollers have moved onto the parallel track sections, a cradle upon which the bucket is adapted to rest as it ap- 'ing a discharge I ports are in i ative position preaches the lower end of its excursion, the bucket su porting rollers being mounted on said crad e.

8. A coal handling plant comprisin a, ported receiving hgrpper, a track exten ing vertically upward rom the hopper, an inclined track extending beneath the hopper having an upward] curved extension terminating below the ower end of the vertical track, a cradle adapted to travel alongsaid inclined track, means for holdin it normally at the upper end thereof,'a buc et arr ed to travel along the vertical track and to rest upon the cradle when it is at the lower end of the vertical track, means for guiding and steadying the bucket andicradle as the two pass down alon the inclined track from the vertical trac said means comprising on the vertical track, a member on the bucket enga g it, vsaid member adapted to come out cgi-gn a ment with the curved extension after tige ucket and cradle have completed a portion of their downward movement, there being a pluralit of track engaging members on thc buc et only one of them being ada ted to engage the curved extension, the ot ers being arranged to be out of register therewith.

9. In a coal handling plant a bucket havport, a closure therein, means for holding the closure closed during the vertical travel of the bucket, a movable cradle adapted to receive the bucket at the lower end of its excursionand to move it laterally', and means onthe cradle for keeping the closure closed.

10. The combination with a hoisting bucket of a vertical track, means for moving the bucket therealong parts projecting outwardly from the buc ret and engaging the track, a curved track extending downwardly and outwardly from the lower end of the vertical track, a part on the bucket adapted to enga e the curved track to mbve the bucket A coal handlin plant comprlsin a hopper having a disc`arge` ort, a buclet having an inlet port, means for movin t e bucket vertically, means forV allowin move from the vertical beneath the at the lower endA of ,its excursion so as to bring the two ports into register, and a cutoff gate adapted iro-move responsive tothe bucket movement, and to leave a. free pass from thechopperto' the bucket whilegg said last mentioned means including laf plurality track rollefsfijiupportmg the means fori Ihin'tainin said rollers in -oper extracksf 12. A. ccgil handling'plant comprising .fa

opper a n. of parallelbucket, and

hopper having a discharge port, a bucket having an inlet port` means for moving the bucket vertically, means for allowin 1t to move from the vertical beneath the lopper at the lower end of its excursion so as to bring the two ports into register, and a cutoff gate adapted to move' responsive to the bucket movement, and to leave a free passage from the hopper to the bucket while the ports are in register, said last mentioned means including a plurality of parallel tracks, rollers supporting the bucket, and means for maintaining said rollers in operative position upon the tracks, and a cradle upon which the bucket is adapted to rest as it approaches the lower end of its excursion, the bucket supporting rollers being mounted on said cradle.

13. A coal handling plant comprising a hopper with a discharge port, a bucket with a receiving port, means for moving the bucket vertically, a track extending from one side of the vertical line of travel and along which the bucket moves to a point beneath the hopper discharge port, pairs of members of said track being more/widely separated at the top than below, a cradle traveling on said track and adapted to receive and carry the bucket to one side and to bring the two ports into register, and a cut-ofi gate between the ports adapted to be operated responsive to the said movementof the cradle so that when the norts are in register to leave free passage vii-ctween them.

14. A coal handling plant comprising a hopper having a discharge port, a bucket having an inlet port` the two ports being in planes substantially parallel with each other, means for moving the bucket vertically,l and means forallowing it bodily to move to the side beneath the hopper at the lower end of its excursion so as to bring the two ports into register, a cnt-oil gate between and substantially parallel with the ports. adapted to move in response to the pressure oi the bucket. and leave a free discharge from the hopper to the bucket while the ports are in register. the gate beinsr engaged and moved bv the bucket.

15. A coal handling plant comprising a hopper having a discharge port. a bucket having an inlet port, the two ports being in planes substantialli7 parallel with each other, means for moving the bucket vertically, 'and means for allowing it bodilv to move to the side beneath the hopper at the lower end of its excursion so as to bring the two ports into register, a cut-oil' gate between'and substantially parallel with thev ports, adapted to move in response to the pressure of the bucket. and leave a free discharge from the hopper to the bucket while'the ports are in register. a bucket en-A gaging member on said cut-oill gate, the translating means for moving the bucket laterall Ycomprisingr an inclined track adapte to direct the bucket beneath the hoplper discharge port and against said bue et engaging member, the gate being engaged and moved by the bucket.

16. A coal handling plant comprising a 4hopper having a discharge port, a bucket having an inlet port, the two ports being in planes substantially parallel with each other, means for moving the bucket vertically, and means for allowin it bodily to move t0 the side under the in uence of gravity beneath the hopper at the lower end of its excursion so as to bring he two ports into re ister, a cutoff gate between and substantie ly parallel with the ports, adapted to control the flow of coal from the hopper to the bucket and to move in response to the pressure of the bucket, and leave a free and uninterrupted discharge from the hopper to the bucket while the ports are in re ister, a bucket engaging member on sai cut-oli' gate, the means for moving the bucket laterally comprisin an inclined track adapted to direct the bue et beneath the hopper discharge port and against said bucket engaging member, said cut-olf gate adapted to move along a path parallel to the path of the bucket.

1'?. A coal handlin plant comprising a having an inlet port, the two orts being in planes substantially arallel with each other, means for allowing i bodily to mo e to the side beneath the hopper at the lowerl end of its excursion so as to bring the two 'ports into register and a cut-oil gate between and substantially parallel with the ports, adapted to controlthe flow of coal from the hopper to the bucket and to move in response to the pressure of the bucket, and leave a` free and uninterrupted passage from the hopper to the bucket While the ports are in register, a bucket engaging member on said cut-off gate, the means for moving the bucket laterally comprising a plurality of inclined tracks curved at their upper ends adjacent the vertically moving means, said tracks being adapted to direct the bucket beneath the hopper discharge4 port and against said bucket engaging member.

18. Acfoal handling plant comprising a hopper having a discharge port, a bucket having an inlet port, the two ports beine' in p anes substantially parallel with eac other, means for moving thebucket vertically, means for allowing it to move to the side under the influence of gravity beneath the hopper at the lower end of its excursion so as to bring the two ports into register anda cut-ofi' gate between and substantially parallel with the ports, adapted to control the flow of coal from the hopper to the bucket and to move in response to the ressure of the bucket, and leave a free an uninterrupted bucket at al register, a bucket en cut-oli' g bucket bodily ity of incline ends adjacent the v said tracks bein bucket beneath t e and against said bu and a cradle adapt clincd tracks and to 19. A coal handli hopper having a di having an inlet port, means bucket vertically, it bodily to mo hopper at the I` so as to bring the a cut-oil' gate ad of coal` from the to move in respo bucket, and leave discharg all time a bucket en f gate, a late inclined tracks beneath two ports int apted to contro a free and un e from the hopper to tl rally moving means comp ed to direct the the hopper against said bucket cradle adapted to r tracks and to suppoi 20. A. coal handli hopper having a di having an inlet port, in planes substantiall other, means for mov cally, means for ,allow to the side beneathth end of its excursion so as to brin l ports into register, and a cut-o tween and substantially paralle ports, adapted to control the s coal from the hopper *to the bu responsive to leave a free hopper to the bucke the ports are in re 2l. A coal h hopper having having an inlet in planes substa other., means fo cally, means for allowin to the side under the i beneath the hopper at t excursion so as to br register and a cut-oil' stantially parallel wit to control the moveto hopper to the bucket the bucket movemen and open passagevf bucket during tb.. t in register, said port, the two.

ge from the hopper to the bucket laterally comprising a movable while the ports are in cradle and supporting tracks.

gaging member on said 22. A coal handling plant comprisin a. the y means for movin laterally comprisin d tracks curved at t the hopper havin a discharge port, a buc et a p uralhaving an in et port, the two ports being eir upper in planes substantially parallel with each moving ineans,. other, means for moving the bucket vertiadapted to direct the cally, means for allowing it bodily to move hopper discharge port to the side beneath the hopper at the lower cket engaging member end of its excursion so as to bring the two ed to ride on said inports into register and a cut-oil' gate besupport the bucket.

plant comprising a ports, adapted to control the movement of ort, a bucket coal from the hopper to the bucket durin r moving the the time when the ports are in register, sai so and means for allowing means for movin the bucket laterally comto the side beneath the prisiug a movab e cradle and sup orting er end of its excursion tracks, and means for normally ten n to o register, hold the gate closed in opposition to the l the flow action of the bucket. opper to the bucket and 23. A coal handling plant comprising a e to the pressure of the hopper having a discharge port, a bucket interrupted having an inlet port, the two ports being ie bucket at substantially parallel with each other, he ports are in. register, means for moving the bucket vertically, 9o gaging'fmember on said cutjoir means for allowing it bodily ,to move to I'iSlng the side underithe influence of gravity bebucket neath the hopper at the lower end of its discharge port and excursion so as to bring the two ports into `engaging member, a register, a sliding cut-olf gate between and ide on said inclined substantially parallel with the ports adapt- 't the bucket. Y ng plant comprisin a hopper to bucket to move responsive to the arge port, a bi1. et bucket movement and to leave a free and the two ports belnlg1 open passage from the hopper to the bucket i 10o y parallel with eac ing the bucket vertiregister. l ing it bodily to move 24. A coal handling plant comprising a e hopper at the 10We1 hopper having a discharge port, a `bucket g the two having an inlet port`- the two ports being if gate bein pla es substantially parallel with each l` with the other, eans for moving the bucket` vertiy.ovement of cally, cket to move f to the ide beneath the hopper at the lower the bucket movement and to end of ts excursion so as to bring the two pen passage from the ports i -to register and a cut-oill gate bet durlng the time when tween and substantially parallel with the tween and substantially parallel with the ed to control the movement of coal from during the time when the ports are in ports. adapted to control the movement of andling plant comprising a coal from the hopper to the bucket to move a discharge port. a bucket responsive to the bucket movement andto ports being leave a `free and open passage from the parallel with eacli hopper to` the bucket during the time when g the bucket Vertr the portslare in register, said means for g it bodily to move moving the bucket laterally comprising a niuence of gravity movable cradle and supporting tracks havhe lower end of its ing vertical `.and lateral portions adapted to mg the twoports into cause `said cradle to move first vertically gate between and suband then "laterally in the inclined direction.

h the ports, adapted 25. A cal handling plant comprising a ont of coal from the hopper lic to move responsive to having an inlet port, the two ports being t and to leave a free in planes substantially' parallel with eabh rom the hoppento the other, means for moving the bucket vertithe p orts are cally, means to move it bodily to the side :for moving the under the iniluence of gravity laterally biel-'IO4 aving a discharge port, a bucket heath the hopper at the lower end ol its excursion so as to bring the two ports into register and a eut-off'gate iietween and substantially parallel with the ports, adapted to control the movement of coal from the hopper to the bucket to move responsive to the biioket movement and to leave a free and open passage from the hopper to the bucket during the time when the ports are in register, said means for moving the bucket later'l ally comprising a movable cradle and snp-- porting tracks, having vertical and lateral portions adapted to cause said cradle to move vertically and then laterally in the inclined direction, the tracks overl which the cradle l5 HOHSON S. SHIMIZU.

Titnesses LAUREL D. MEYER, MARIAN L. INGRAHAM.

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