US1508996A - Hoisting and dumping apparatus - Google Patents

Description

Sept. 16, 1924. 1,508,996

G. N. SIMPSON ET AL HQISTING AND DUMPING APPARATUS 6 Sheets-Sheet 1 Ja e/2602 vfr-Zhm/MSzrgumn 6607 e/[Jz'mpaogz Filed Aug. 5.

Sept. 16, 1924. 1,508,996

G. N. SIMPSON ET'AL HOISTING AND DUMPING APPARATUS Filed 5 1921 '6 Sheets-Sheet 5 Se t. 16 @1924.

cs. N. SIMPSON E T-AL HOISTING AND DUMPING APPARATUS 6 Sheets-Sheet 4 Filed Aug. 5,

15 1924, 1,508,996 G. N. SIMPSON ET AL HOISTING AND DUMPING APPARATUS Filed Aug. 5. 1921 s Sheets-Sheet a I Gemye 5072 5502? j I Sept. 16 1924. 1598 996 G. N. SIMPSON ET AL HOISTING AND DUMPING APPARATUS Filed A118 5. 1921 6 Sheets-Sheet 6 56 5g v V )5? .56 J? mania 13': JZMIi/KQSZZZWQIZ @orye 17.50730 5077,.

Patented Sept. 16, 1924.

uNrrs 'r enonon 1v. srMrsoN, or rrrrsnunsn, rniunsrrvnnrn, Aiarnua M. srrrrson;

OF CHICAGQ, ILLINOIS.

." HOISTING AND DUMEING' AFTPABATUS.

Application filed August 5, 1921.

To all whom it may concern:

Be it known that we, GEORGE N. SIMPsoN and ARTHUR M. SlMrsoN, citizens of the United States, residing at Pittsburgh, Allegheny Count Pennsylvania, and 1220 East 75th Street, hicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Hoisting and Dumping Apparatus, of which the following is a specification.

This invention relates to improvements in hoisting and dumping apparatus designed to elevate a car loaded with coal, ore or other material and overturn the car at the top of its elevation for the purpose of dumping its contents. In general,'the apparatus comprises a hoisting cage adapted to receive the loaded car at the foot of a shaft or other dumping place and raise it to the top; where the car supporting parts in the cage are engaged in such manner as to rotate them and overturn the car in order to empty it of its load.

In thatform of the device embodying the. features of the invention shown in the accom-. panying drawings, Figure 1 is a view in side elevation of the improved hoisting cage,

Fig. 2 is a view similar to Fig. 1 showing the cage in end elevation, with a car in place in the cage,

as indicated by the line 3 of Fig. 2, showing the cage, however, in a higher position with the car inside overturned, Fig. 4 is a top plan view of the interior of the cage,

Fig. 5 is a view taken as indicatedby the line 5 of Fig. 1, Fig. 6 is a view in end elevation of the car supporting cradle within the cage, Fig. 7 is a view taken as indicated by the line 7 of Fig. 1, Fig. 8 is a view taken as indicated by the line 8 of Fig. 4 and Fig. 9 is a vertical sectional view of one of the guiding shoes on the cage.

As shown in the drawings, the device comprises a hoisting cage indicated in general by A. The cage A is formed of the two large side plates 10, 10 which are substantially rectangular in shape at the top and beveled at the bottom edges. 'Each of the plates 10 has riveted on its outer side a vertical channel member 11. The plates 10 are connected by the horizontal channel members 13 on-one side and by the channel members lfl on the other. Each of the plates 10 is further strengthened and stifand descent. in the shaft.

Fig. 3 is aview taken.

Serial No. 489,940.

and next to the upper ends of the members 11. The members 17 have their upper ends ]O1I18Cl by the channelirons 12. The edges of the plates 10 are suitably stiffened,

strengthened and braced bythe angle irons 18 which are riveted to such edges. Mounted on each side of the cage are two guiding shoes indicated in general by B adapted to engage with suitableguides'or rails 19 at the sides of the shaft-in order to -hold the cage true in its course during ascent One of the'shoes B will bedescribed' more in detail hereinafter.

Within the cage A is journalled car supporting cradle indicated in general by C. Mounted on the cradle C are track rails 21 which extend substantiallythe length of Reinforcing channel irons; 17 are attachedto the plateslO at the top thecradleand are somewhatinclined from end 'to end so that'a car 22 which is placed on them will; rest against stops secured to the rails near their'lower ends to .keep the car from rolling out of the cradle. The stops 23 are hinged to the rails so that they may be displaced laterally to permit the empty car to roll forward out of the cage on the return of the latter to the bottom of the shaft. The stops are'controlled through a toggle arrangementof levers so designedthatthe stops are automatically releasedwhen .the cage reaches the bottom of the shaft. The particular designof this part of the mechanism-will be explained more in detail hereinafter.

The cradle C is provided with trunnions 25 which are journ alledin bearings 26 mounted on the inner sides'of' the plates 10.

Each of the trunnions 25 is bored out and adapted to receive a cylindrical part 27 on the outer end of which is mounted a turning arm 28. The part 27 is heldiin place in the trunnion 25 by a bolt 29, and rotation with respect to the trunnion is prevented by a key 80. The cylindrical part 27 has its outer end outside of the trunnion 25 enlarged to the same diameter as the trunnion itself, thus forming .theshoulder 31.

The plate 10 is provided witha hole in alignment with the trunnion 25 to accompill 21 during the overturning or" the cradle.

"s'itie'n as i modate the enlarged outer end of the cylindrical part 27, and the arm 28 lies outside of the plate '10. Each of the arms 28 has mounted on its end an elongated guiding shoe 33 substantially rectangular in shape and rounded on its ends. It will be seen that by this construction, swinging or the arms 28 will serve to "rock the cradle C, so that a car in position upon the cradle can be overturned and dumped. It is oh vious, however, that some means must be "provided for holding the car on the rails in order to accomplish this the cradle is provided "on its sides with two angle irons 05 arranged with their horizontal webs pro- {jetting inwardly and lying above the rails 21 and of just suflicien't height to permit the wheels 36 of the car 22 to roll thereunder. It will be seen that the angle irons 35 will serve, therefore, to hold the wheels 36611 the rails '21 and thus prevent the cr- 22 from leaving the rails during the overturning operation.

"Overturning of the eradle G in order to dump the car 22 is effected in the following manner. Arranged at thesides oi"- the shaft at the top, where the dumping of the car is to take place, are two Y-shaped guides or grooves 40 in which the shoes 33 are adapted to slide. lVhen the cradle C is in its normal upright position, the arms 28 are substantially vertical as shown in Fig. 1. In Fig. l't he cage A is shown near the top of the shaft with the shoe 33 just entering the giiide 40. From this point on, upward movement of the cage A will cause the shoe 33 to slide in the guide 40 thus moving the arm 28 and rocking the cradle C. The progressive positions assumed by the shoe 33 and arm 28' caused by the slidingot the shoe 33 in the guide L0 as the ca'ge A'a'scerrds are indicated in Fig. 1, by

33 33 and 33. In Fig. 3the'cage is shown at the top of its travel with the cradle C almost completely overturned and the car 22 dumped. The cage A is hoisted in the shaft in any desired manner, as, for example, by suitable cables 12 attached to the members 12 and operated by suitable hoisting machinery. The particular means for ng the cage A form no part of the pres it invention and consequently are not shownherein.

v At therefrom ofthe cage is arranged a slanting chute 45 formed of a flat sheet of metal jol" tag; the two lower slanting edges of the plates 10. The chute 45 is arranged to catch the contents of the car when the latter is overturned, Hinged at the lower easer this chute 45 is "a swinging apron 16, designed tb drop downward into a po- (heated in Fig. a henthe cage is at'the'topof itstravel and the cradle with the car thereon is in dumping position. lVhen the apron is in this position it forms an extension of the chute 4-5, and slightly overlaps the same on the underside of the chute 45; in order to convey material which may slide from the chute 45, to one side of the shaft opening to deposit the same in any suitable bin or other receptacle. l vhen the cage A is at the bottom or" the shaft, the apron 46 is swung up into a vertical position as shown in Fig. l. The parts are so arranged that the apron 4-6 stays in this vertical or closed position for some time after the cradle C has commenced to rotate and dump the contents of the car. During the first part of the dumping, therefore, the contents from the car are retained on the chute- 45 against the vertical closed apron 46. After the car has overturned somewhat more than 90, the apron 4'6 commences to lower. W hen the cage has reached the top of its upward movement the apron 46 is completely lowered as shown in Fig. 3 and the car 22 has reached the limit of its overturning motion. One of the purposes of holding the material dumped against the apron 4:6 is to prevent a long fall of'material from the car. With the apparatus as shown, the material spills rather than falls from the car upon the chute 45 where it is held by the apron 46 until practically the entire contents of the car have been deposited upon the chute 45; when the apron 46 opens and allows all the material to slide down from tne chute over the apron 46 into any suitable receptacle provided. By this arrangement also the material is prevented from being emptied. during a long travel of the cage. It will be noted that the upward movement of the cage overturns the cradle and car thereon. This overturning cannot be done too rapidly owing to the fact that the cradle and car have considerable weight and must be moved. relatively slowly. On this account, therefore, the complete oven turning of the car requires considerable upward movement of the cage A. If it were not for the arrangement of the chute 45 and apron material would commence to spill out of the car 22 as soon as it had slightly overturned and continue to thus spill out during all the remaining overturnor the car until the car was completelv emptied, Since, during this time, the cage would make considerable progress in its upward movement, it would be ditlicult to collect gather the material thus dumped from the car during all this movement of the cage. In order to avoid this difliculty the chute 45 and apron 46 are arranged to collect the material therein until the car is practically completely dumped. The apron 6, being relatively light in weight, can then be quickly opened by a short upward travel of the cage A, thus allowing all the material gathered on the chute to flow out into a receptacle provided therefor. The method of operating the apron 46 is as follows. It has near its lower edge two rollers 47 adapted to engage with and roll against vertical guides 48 arranged at the side of the shaft. The guides 48 extend from near the top of the shaft to near the bottom and serve to hold the apron 46 in its raised and closed position as shown in Fig. 1 during the upward travel of the cage A until. it gets almost to the top. Near the top of the shaft, the guides 48 are bent as indicated by 49 away from the shaft to form horizontal guides 50. Above the guides 48are additional guides 51 the lower ends of'which. are bent inwardly somewhat as indicated by 52 to overlap'the guides 48. There is suflicient distance between' the ends 52 of the guides 51 and the curved parts 49' of' the guides '48 to accommodate the rollers 47 It will beseen that, by this construction, when during upward movement of the :cage A the rollers 47 engage the ends-52 of the guides'51 the apron 46 will commence to be lowered; and that thereafter upward movement of the cage will cause the rollers 47 to roll out on the'horizontal guides '50 thus allowing the apron 46 to-zr'each its lowest or full open position. Continued upward movement of the cage A will lift the rollers 47 somewhat from the guides and cause them to roll on the guides 52; butduring thismovement the apron 46- will re.

main down or open as shown in Fig. The bend 49in the guides 48 is so located, as

explained before, to cause the apron 46 to commence to lower or open after the cradle has been partly overturned and the contents of the car 22 practically all deposited on the chute'45 back of the apron'46. From the time the apron- 46 commences to lower, continue'd upward movement of the cage A completes the overturning of the car 22 and allows the apron 46 to reach its lowest or completely open'positionas shown in Fig.

The apron 46 is provided with vertical side plates 54 adapted to-keep material passing over the apron 46 from falling ,oif of "the sides thereof. The plates 54-are adapted to overlap the bottom corners of the plates- 10 when the apron 46 is in its raised or closed position. The apron-46 is hinged at the lower edgeof the chute 45 in the followiiig manner, as best illustrated/in Fig. 7. The bottom corners of the plates 10 are reinforced by plates 56;."Roui1dholes are cut through the corners of theplates 10- and -reinforcing plates 56, and 'tl rough;these holes is inserted a pipe 57 of suflicientlength so that its ends will project somewhat beyondthe outer sides of the reinforcing plates 56. The verticalside plates 54 on'the apron 46 are provided with corresponding holes through whiehthe pipe 57 is inserted. Theholes in the plates 54 are reinforced by circular castings 58 bolted to the plates 54. The

car 22 from rolling forward on the. rails during the dumping operation.- Especial reference is directed to Figs. 4, 5 and 6. It will be seen that the stops or horns 28 are mounted on horizontal shafts, the ends of which are swiveled in boxes 60 fastened to the outsides of the rails 21. It will be seen that by this construction the horns 23 may be moved from a closed position as shown in Fig.- 2 with their ends lying above the rails 21, to an open position as shownin' Fig. 4

withtheir ends lying to the outside of the rails 21. Their movementis so limited that -when they are in the closed position above the rails, they will lie in the path of the car wheels 36; and that, when they are in their open position as shown in Fig. 4, they will be outside the pathof the car wheels and allow the same to pass. -The horns or stops 23 are adapted to be moved from their open to their closed position and vice versa by a toggle arrangement of levers connected 7 to a horizontal rotatable shaft'62 arranged on the cradle C in thecenter slightly below the rails 21. Each of the horns 23 has a downwardly extending arm 63. The eiidiof the shaft has mounted th reon two oppositely arranged radial arms 64. Each of the arms 64 is connected to a corresponding .arm 63 by a connecting rod 65. It will be seen that; through thearins 64, connecting rods 65 and arms 63, rotation of the shaft 62 will. cause movementof the stops or horns 23. The other 'end of the shaft 62 has mounted thereon a fan-shaped lever 66. At about the center, the shaft 62 is also pro vided with a downwardly extending. arm

67 the end of which is connected by a spiral spring 68 to stationary part of the cradle C. 'The parts are so arranged that the spring 68 will tend normally to rotate the rod 62 to cause the stops 23 to lie in their closed position above the rails 21. When 'in'this' position the fan-shaped lever 66 is {in the position as ndicated by the broken lines in Fig. 2. At the bottom of the'shaft is arranged a stationary stop 70 adapted to engage the end of the lever 66 when the cage A is almostwat the end of its, downward travel; so that the last part of the downward travel of the cage will cause the end of the lever 66 to be raised (with respect to the cradle C) and the shaft 62 rotated about 50. The parts areso arranged that this amount of rotation of the shaft 62 will 0 erate to move the stops 23 to their open position out of the path of car wheels on the rails 21. It will be seen that by this construction, as the cage A reaches the bottom of the shaft, engagement of the fan lever 66 with the stop 70 will operate automatically to open the stop 23 and allow the car on the cradle C to roll on the slanting rails 21, and pass out of the cage. If the stops 23 were allowed to remain in this open position after the emptied car had passed out, there would be nothing to stop the new loaded car. from passing right through the cage and out again. The following means, thereforeg'are provided for again restoring the stops .23 to their closed position in order to stop the new loaded car as it enters the cage. The shaft 62 has a certain amount of endwise sliding movement. This movement is. sufficient to allow the lever 66to become disengaged from the stop 70. hen thus disengaged it is obvious that the spring 68 will operate to again close the stops. Near the high ends of the rails 21 are: arranged two triggers 73 adapted to be engaged by the flanges of the car wheels entering the cage. The triggers 73 are mounted on a transversely arranged shaft 74 rotatably mounted on the cradle C below the rails 21 in such a manner that they will be depressed as the wheels 36 of the car 22 pass over them. They will not, however, block the passage of such wheels. The downward movement of the triggers 7 3 caused by the passage over them of wheels on a car operate to slide the shaft 62 endwise to release the lever 66 from the stop 70 so that the horns or stops 23 will be closed. The distance between the stops 23 and triggers is so short, that the empty 'car has passed from the cage beyond the stops 23 before the wheels of a new incoming car engage the triggers 7 3 to cause the stops 23 again to be set. By this construction it will be seen that as the cage reaches the bottom of itstravel, the stops 23 will automatically be opened, the empty car will run out; and a new loaded car entering the cage will depress the triggers 7 3 to cause the stops 23 again to be set or closed and thus hold the new loaded car in thecage for the subsequent elevating of the cage andduinping operation. The endwise movement of the shaft 62, referred to above, causedby the movement of the triggers73, is accompli'shed in the following'manner. I The'shaft' 62 is provided with a collar 76 adapted to be engaged by two dogs 77, one'oneach side of the shaft 62. The dogs 77 are keyed 'on t6- the shaft 74 so that rotation "of 't'hisshaft messes causes inidvement 'iof'the dogs against the collar? 6 to move the shaft 62endwise. After the passage of'the c'ar wheels over the triggers 73 they are againjrestored to their normal upright position by a spiral spring 78 having one end attached to the lower end of an arm 7 9 mounted on the shaft .7 1 and its other encla-ttache'd to any suitable station ary part on the cradle C. A spiral spring 80 on the shaft 62 with its end against the collar 81 operates to move thes'haft 62 endwise to its normal position after the stops 23 are again brought to their closed position and after the triggers 73 are again raised to their normal upright position by the spring 78 after the passage of the car wheels.

We will now describf'e more in detail the construction offone of the shoes B. At each side of the channel member 11 is a short angle iion 9Q-mounted on the. plate 10. Since the two sides of the .shoe 1? are similar I will .describein detail but one; The web 91 of the angle iron'90 lies at right angles to the plate .10 and is somewhat wider than the edge of the channel member 11. .Mounted on the inner side of the web 91 is a flat strap of metal .92 with its ends bent outwardly as indicated by 93. The metal strap 92 is fastened to the web 91 by bolts 94 and spaced therefrom by washers 95 on such bolts. It will. be seen that by this construction, the straps 92 may be located as close to each other as desired by changing thenuinber or thickness of the washers on the bolts 94:. This'construction adapts the shoes to be altered easily to fit different sizes of guides 19 atthe sides of the mine shaft. ounted on the channel member 11 is another. plate 96 similar to the plates 92 and spaced from the channel member 11 by washers similar to the washers on the bolts 97 whi'eh hold. the strap96 in place. The mounting of this strap 96 on the channel member 11 is similar to the. mounting of the strap 92 on the web 91. By the use of W washers of different thickness behind strap 96 it also may be placed close to or away from the shaft inorder to fit the guides 19.

It is to be noted that the device shown permits the hoisting and dumping 'of solid body cars, that is, cars having no gates. The device, however, will also operate with gate cars "desired. Among the other advantages of the device, may be mentioned that this device retainsthe complete weight of the-cage and-thepar on the hoisting rope during thf ntireaump-in operation, This i s 'an says-a gegsince it makes the counter balancing "more' asy.

While we hiave shown and described but a single embodiment of our invention, it

is th be understood that it is. capable of manymodi ficatinas @ha11"g"es, therefore, .in

the,;cq1;stniction and anran-"gementma be "made whenaeesaiagzeemthe spirit an to rotate the cradle and overturn the car, said means including a Y-shaped guide adapted to engagethe shoe on the end of the arm. v

2. In a car hoisting and dumping apparatus, a cage adapted to receive a loaded car,

= a rotatable car supporting cradle within such cage, an arm attached to the cradle, a shoe on the end of the arm, means for hoisting the cage independently of the cradle, and means acting through the movement of the cage and independently of the hoisting means to move the arm to rotate the cradle and overturn the car, said means including a Y-shaped guide adapted to engage the shoe on the end of the arm.

. 3. In a car hoisting and dumping apparatus, a cage adapted to receive a loaded car, a rotatable car supporting cradle within such cage, an arm attached to the cradle, means for hoisting the cage, a Y-shaped stationary part located at the top of the path of the movement of the cage, and a part on the arm attached to the cradle adapted to engage with such stationary part to move the arm to rotate the cradle and overturn the car.

4:. In a car hoisting and dumping apparatus, a cage adapted to receive a loaded, car, a rotatable car sup-porting cradle within such cage, an arm attached to the cradle, a Y-shaped guide located at the top of the path of movement of such cage, and a part on the arm attached to the cradle adapted to engage with such guide to move the arm to rotate the cradle and overturn the car.

5. In a car hoisting and dumping apparatus, a cage adapted to receive a loaded car, a rotatable car supporting cradle within such cage, an arm attached to the cradle, a Y-shaped guide located at the top of the path of movement of such cage, and a shoe on the end of the arm adapted to engage with the guide to move the arm to rotate the cradle and overturn the car.

6. In a car hoisting and dumping apparatus, a cage adapted to receive a loaded car, a rotatable car supporting cradle within such cage, an arm attached to the cradle, means for hoisting the cage, means acting through the movement of the cage to move the arm to rotate the cradle and overturn the car, a chute carriedby the cage below the cradle, and a movable apron connected to the chute. p

7. In a car hoisting and dumping apparatus, a cage adapted to receive alo'aded car, a rotatable car supporting cradle within such cage, an arm attached to the cradle, means for hoisting the cage, means acting through the movement of the cage to move the arm to rotate the cradle and overturn the car, a chute carried by the cage below the cradle, a movable apron connected to the I chute, and means actingthrough the movement of the cage to move the apron. I 8. In a car hoisting and dumplng'apparatus, a cage adapted to receive a loaded car,

a rotatable car supporting cradle within such cage, an arm attached to the cradle, means for hoisting the cage, means acting through the movement of the cage to move the arm to rotate the cradle and overturn the car, a chute carried by the cage below the cradle, an apron hinged to the lower edgeof the chute, and means acting through upward movement of the cage to lower or openthe apron.

9. In a car hoisting and dumping apparatus, a cage adapted to receive a loaded car, a rotatable car supporting cradle within such cage, an arm attached to the cradle,

means for hoisting the cage, means actingthrough the movement of the cage to move the arm torotate the cradle and overturn the car, a chute carried by the cage below the cradle, an apron hinged to the lower edge of the chute, and means acting through downward movement of the cage to raise or close the apron. I

10. In a car hoisting and dumping apparatus, a cage adapted to receive a loaded car, a rotatable car supporting cradle within such cage, an arm attached to the cradle, means for hoisting the cage, means acting through themovement of the cage to move the arm to rotate the cradle and overturn the car, a chute carried by the cage below the cradle, an apron hinged to the lower edge of the chute, and means acting through upward 'movement of the cage to lower or open the apron and means acting through downward movement of the. cage to raise or close the apron.

11. In a car hoisting and dumping appalower edge of the chute,.such apron adapted to be raised to its closed position by clown- Ward movement of the cage.

18. In a car. hoisting and dumping apparatus, a cage adapted to receive a loaded car, means acting. through movement of the cage to overturn the car a chute carried by the cage below the car, an apron hinged to the lower edge of the chute, such apron adapted 10 to be, lowered to its open position by upward movement of the cage.

14. In a car hoisting and dumping apparatus, a cage adapted to receive a loaded car, means acting through movement of the cage to overturn the car, a chute carried by the cage below the car, an apron hinged to the lower edge of the chute, such apron adapted to be raised to its closed position by down- Ward movement of the cage and lowered to its open position by upward movement of the cage. 7

15. In a car hoisting and dumping apparatus, a cage adapted to receive a loaded car, means for hoisting the cage, means acting through movement of the cage to overturn the car, a chute carried by the cage. below the car, and an apron With vertical side plates hinged to the lower edge of the chute, the, hinged joint being effected by a pipe mounted on the cage. With its ends extending through the vertical side plates. on the apron.

16. In a car hoisting anddumping apparatus, a cage adaptedto receive a loaded car, a rotatable car supporting:- cradle ithin such cage, an arm attached to the. cradle, means for hoisting the. cage, and means acting througl-i the movement. 01: the cage to turn the arm to rotatethe cradle and overturn the car, said means comprising an elongated shoe on the end of the. arm adapted to engage with a guide, at the. sid e ofs the shaft.

17. In a car hoisting. and dumping apparatus, a cage. adapted: to receive a loadedicar, a rotatable car supporting cradle Within such cage, an, armattached to the cradle, means for hoisting the cage, and means acting throughthe movement of the cage to turn the arm to rotate the, cradle and oven turn the car, said means-comprising an elongated shoe on the end of the arm adapted to engage with a :f-shapfid guideat the side ofthe shaft.

In witness whereof W6. have hereunto, set our hands and seals this; 27, day of June, 1921.

GEORGE N. SIMBSQN. 1,. a]. ARTHUR SIMPSON. 1. s.]

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