US3019949A - Hopper capable of being emptied in a regulatable manner - Google Patents

Hopper capable of being emptied in a regulatable manner Download PDF

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US3019949A
US3019949A US792803A US79280359A US3019949A US 3019949 A US3019949 A US 3019949A US 792803 A US792803 A US 792803A US 79280359 A US79280359 A US 79280359A US 3019949 A US3019949 A US 3019949A
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bucket
hopper
members
emptied
portions
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US792803A
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Allard Pierre Jean-Ma Theodore
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/54—Large containers characterised by means facilitating filling or emptying
    • B65D88/58—Large containers characterised by means facilitating filling or emptying by displacement of walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
    • B60P1/04—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element
    • B60P1/16—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element actuated by fluid-operated mechanisms
    • B60P1/165—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element actuated by fluid-operated mechanisms tipping movement about a fore and aft axis

Definitions

  • the invention relates to a hopper receiving and discharging bulk materials which are difficult to pour, such as adhesive or caking materials or materials in the form of blocks.
  • Conventional hoppers generally have a downwardly convergent lower portion which directs the material in the hopper toward the outlet aperture, which is selectively opened or closed by suitable means, thereby discharging these materials as desired.
  • a drawback of these prior hoppers is that when the material is of the aforementioned type, they are not easily emptied and often require that the sides have a relatively steep slope to avoid or reduce the clogging or obstruction of the outlet aperture. Owing to the provision of these slopes, the material sliding along the downwardly convergentwalls has a tendency -to clog or to beco-me wedged, thus forming an arch which hinders the tlow of this material. Further, owing to the shape of the lower walls, these hop-pers are excessively high for a p-articular volumetric capacity.
  • the invention comprises a supporting structure upon which two confronting bucket members are mounted for individual pivotal movement about spaced parallel axes.
  • Each bucket is open ⁇ at the side which faces the other bucket member so that the two bucket members communicate freely with each other.
  • the two bucket members have at bottom portions which are normally substantially coplanar.
  • the tlat bottom portions have rectilinear edges which are equidistant from the parallel horizontally extending pivotal axes.
  • Lateral portions of each bucket member are cut away so tha-t both bucket members are individually movable in either direction, each independently of the other, away from the normal position wherein their bottom portions are horizontal and the edges of the bottom portions are effectively in contact with each other so that the discharge of material is shut olf.
  • FIG. l is a diagrammatic elevational view of a hopper according to the invention, in its normal or closed state;
  • FIG. 2 is a side elevational View of the hopper shown in FIG. 1, and
  • FIGS. 3-5 are views similar to FIG. l of the hopper in various positions in the course of emptying the material contained therein.
  • the hopper of the invention comprises the hopper proper designated .
  • a chassis or supporting structure designated generally as 2 which has a shape and size suitable foi the vehicle or other evacuating means on which the material must be placed.
  • This chassis comprises legs 3 and 4 interconnected by cross-members 5 and additional legs 3a and 4a.
  • the hopper 1 comprises two confronting buck-et members designated generally as 6 and 7.
  • the bucket memr'ice bers 6 and 7 are mounted for individual pivotal movement on spaced parallel horizontal shafts 8 and 9 which are journaled in the legs 3 and 4.
  • the bucket members 6 and 7 are identical so that they constitute a pair and are disposed symmetrically in confronting relationship.
  • the bucket member 6 comprises a at normally horizontal bottom portion 10, an outer wall 11 and two lateral Walls 12 and 13 (FIG. 2). Similar portions of the other bucket member 7 are designated by corresponding reference numerals each with the suixa.
  • the flat bottom portions 510 and 16a are disposed in the same horizontal plane when the hopper 1 is in its normal or closed condition as shown in FIG. 1.' In the normal position, the rectilinear inner edges 14, 14a are in contact with one another to prevent the discharge of material from the hopper 1.
  • the lateral walls 12, 12a and 13, ,13a are cut away as indicated in dotted lines, so that the bucket members 6 and 7 arel capable of individual pivotal movement in either direc.
  • a pair of spaced parallel vertical side plate members 18, 19 is secured to the chassisZ.
  • Each of the side plate mem-bers 18 and .19 extends perpendicularly with respect to the horizontal pivotal axes provided by the shafts 8 and 9.
  • the side plate members 18, 19 laterally enclose the cut away portions .15, 15a of the bucket members 6 and 7 throughout the range of pivotal movements shown in FIGS. 3, 4 and 5 so that material can be discharged from the hopper l1 only over the rectilinear edges 1'4, 14a.
  • two hydraulic cylinders ⁇ 20, 20a For displacement of the bucket members, two hydraulic cylinders ⁇ 20, 20a have their body portions individually pivoted to the side plate 18 lat 21, 21a, respectively.
  • the free end of the piston rod of cylinder Z0 is pivoted to the bucket member ⁇ 6 at 22.
  • the piston rod of cylinder 20a is similarly pivoted to the bucket member 7 at 22a.
  • a further hydraulic cylinder 23 (FIG. 2) is provided which cooperates with the cylinder 20 to tilt the bucket member 6.
  • a similar additional cylinder (not visible in the drawing) is provided for the bucket member 7.
  • Suitable means for supplying pressure fluid to the hydraulic cylinders 20, 2/3 is provided together with appropriate control means for causing the cylinders 20, 23- to displace either or both of the bucket members 6 and 7, at will, in either direction from the normal or closed position as shown in FIG. 1.
  • Discharge of material M from the hopper 1 is effected in the following manner:
  • the pair of hydraulic cylinders comprising cylinder 20a connected to the bucket member 7 is actuated to tilt the bucket member 7 outwardly to the position shown in FIG. 3, the bucket member 6 remaining stationary.
  • Tilting of the bucket member 7 decompresses or loosens the material in line with the previously closed junction line of the bottoms 10 and ltla of the bucket members 6, 7.
  • the loosened material is discharged beneath the hopper as indicated in FIG. 3 through the space E between the normally contacting edges of the bucket members 6 and 7. This discharge will continue until the loosened material assumes its slope of repose as indicated at T.
  • the bucket member 6 is tilted inwardly to the position shown in FIG. 4, so that it is completely emptied, the material being discharged through a guide funnel comprising tiaps 24 and 25 which are shown connected to the cross-members 5.
  • the discharge is completed by tilting the bucket members 6 and 7 outwardly and inwardly, respectively, to the positions shown in FIG. 5. This movement will result in the final emptying of bucket member 7 which, as shown in FIGS, 3 and 4, was previously only partially emptied.
  • the discharge may be interrupted at will be restoring the bucket members 6 and 7 to their normal positions as shown in FIG. 1.
  • the curved edges 17, 17a may be modified to have the arcuate shape indicated in dotdash lines at 26, 26a. If the modified shape 26, 26a is used, material may ow outwardly beyond the edges 14, 14a as well as downwardly between the edges 14, 14a when the two bucket members 6 and 7 are tilted inwardly toward each other.
  • a hopper of the class described comprising: a pair of confronting bucket members having normally substantially horizontal and coplanar iiat bottom portions, each of said bucket members being open at the side which faces the other and each communicating with the other through said open side, means supporting said bucket members for individual pivotal movement about 35 horizontally spaced parallel axes in either direction away from their respective normal positions, lateral portions of said bucket members being cut away to permit individual pivotal movement of either bucket member in either direction independently of the other, said bottom portions having rectilinear edges which are normally etectively in contact with each other and equidistant from said axes, a pair of spaced parallel side plate members extending perpendicularly to said axes and laterally enclosing said cut away portions, and separate displacement means connected to each bucket member fo ⁇ effecting said individual pivotal movement thereof.
  • a hopper according to claim 1 wherein said lateral portions are cut away to define edges the lower portions of which are shaped as sectors of circles concentric with said axes, the lower ends of said sectors passing through said rectilinear edges.
  • a hopper according to claim 1 wherein said lateral portions are cut away to an extent suiiicient to permit simultaneous displacement of both of said bucket members in the same direction with their respective bottom portions maintained parallel.
  • a hopper according to claim 1, whereinsaid displacement means comprises hydraulic cylinder means.

Description

Feb. 6, 1962 P. JEAN-MARIE T. ALLARD 3,019,949
HOPPER CAPABLE OF' BEING EMPTIED IN A REGULATABLE MANNER Filed Feb. l2, 1959 3 Sheets-Sheet 1 //v Vff/v To Feb. 6, "i962 P. JEAN-MARIE: T. ALLARD 3,019,949
HOPPER CAPABLE OF BEING EMPTIED IN A REGULATABLE MANNER 5 Sheets-Sheet 2 Filed Feb. 12, 1959 5 ma as ,M Q4/.1.4
Feb. 6, 1962 P. JEAN-MARIE T. ALLARD 3,019,949
HOPPER CAPABLE oF BEING EMPTIED IN A REGULATABLE MANNER Filed Feb. 12, 1959 5 Sheets-Sheet 3 ited States Patent C 3,019,949 VHOIPER CAIABLE OF BEING EMPTIED IN A REGULATABLE MANNER Pierre Jean-Marie Theodore Allard, 8 Rue de Soisy, Eaubonne, France Filed Feb. 12, 1959, Ser. No. 792,803 Claims priority, application France Feb. 15, 1953 4 Claims. (Cl. 222-502) The invention relates to a hopper receiving and discharging bulk materials which are difficult to pour, such as adhesive or caking materials or materials in the form of blocks.
Conventional hoppers generally have a downwardly convergent lower portion which directs the material in the hopper toward the outlet aperture, which is selectively opened or closed by suitable means, thereby discharging these materials as desired.
A drawback of these prior hoppers is that when the material is of the aforementioned type, they are not easily emptied and often require that the sides have a relatively steep slope to avoid or reduce the clogging or obstruction of the outlet aperture. Owing to the provision of these slopes, the material sliding along the downwardly convergentwalls has a tendency -to clog or to beco-me wedged, thus forming an arch which hinders the tlow of this material. Further, owing to the shape of the lower walls, these hop-pers are excessively high for a p-articular volumetric capacity.
Brielly, the invention comprises a supporting structure upon which two confronting bucket members are mounted for individual pivotal movement about spaced parallel axes. Each bucket is open `at the side which faces the other bucket member so that the two bucket members communicate freely with each other. The two bucket members have at bottom portions which are normally substantially coplanar. The tlat bottom portions have rectilinear edges which are equidistant from the parallel horizontally extending pivotal axes. Lateral portions of each bucket member are cut away so tha-t both bucket members are individually movable in either direction, each independently of the other, away from the normal position wherein their bottom portions are horizontal and the edges of the bottom portions are effectively in contact with each other so that the discharge of material is shut olf. By tilting the bucket members away from each other in opposite directions, the bulk material is broken up from any caked condition. After breaking up the caked condition, the bucket members may be separately tilted to discharge lirst the contents of one bucket and then the other.
Various additional features and advantages of the invention will become apparent upon reading the following speciiication with reference to the accompanying drawing forming a part hereof.
In the drawing:
FIG. l is a diagrammatic elevational view of a hopper according to the invention, in its normal or closed state;
FIG. 2 is a side elevational View of the hopper shown in FIG. 1, and
FIGS. 3-5 are views similar to FIG. l of the hopper in various positions in the course of emptying the material contained therein.
In the illustrated embodiment, the hopper of the invention comprises the hopper proper designated .generally as l, a chassis or supporting structure designated generally as 2 which has a shape and size suitable foi the vehicle or other evacuating means on which the material must be placed. This chassis comprises legs 3 and 4 interconnected by cross-members 5 and additional legs 3a and 4a.
The hopper 1 comprises two confronting buck-et members designated generally as 6 and 7. The bucket memr'ice bers 6 and 7 are mounted for individual pivotal movement on spaced parallel horizontal shafts 8 and 9 which are journaled in the legs 3 and 4.
The bucket members 6 and 7 are identical so that they constitute a pair and are disposed symmetrically in confronting relationship. The bucket member 6 comprises a at normally horizontal bottom portion 10, an outer wall 11 and two lateral Walls 12 and 13 (FIG. 2). Similar portions of the other bucket member 7 are designated by corresponding reference numerals each with the suixa. The flat bottom portions 510 and 16a are disposed in the same horizontal plane when the hopper 1 is in its normal or closed condition as shown in FIG. 1.' In the normal position, the rectilinear inner edges 14, 14a are in contact with one another to prevent the discharge of material from the hopper 1.
The lateral walls 12, 12a and 13, ,13a (the wall 13a is not visible in the drawing) are cut away as indicated in dotted lines, so that the bucket members 6 and 7 arel capable of individual pivotal movement in either direc.
K A pair of spaced parallel vertical side plate members 18, 19 is secured to the chassisZ. Each of the side plate mem-bers 18 and .19 extends perpendicularly with respect to the horizontal pivotal axes provided by the shafts 8 and 9. The side plate members 18, 19 laterally enclose the cut away portions .15, 15a of the bucket members 6 and 7 throughout the range of pivotal movements shown in FIGS. 3, 4 and 5 so that material can be discharged from the hopper l1 only over the rectilinear edges 1'4, 14a.
For displacement of the bucket members, two hydraulic cylinders `20, 20a have their body portions individually pivoted to the side plate 18 lat 21, 21a, respectively. The free end of the piston rod of cylinder Z0 is pivoted to the bucket member `6 at 22. The piston rod of cylinder 20a is similarly pivoted to the bucket member 7 at 22a. At the opposite side of bucket member 6 a further hydraulic cylinder 23 (FIG. 2) is provided which cooperates with the cylinder 20 to tilt the bucket member 6. A similar additional cylinder (not visible in the drawing) is provided for the bucket member 7. With the hopper 1 closed, as shown in FIG. 1, all of the piston rods are in a semi-extended condition. Suitable means (not shown) for supplying pressure fluid to the hydraulic cylinders 20, 2/3 is provided together with appropriate control means for causing the cylinders 20, 23- to displace either or both of the bucket members 6 and 7, at will, in either direction from the normal or closed position as shown in FIG. 1.
Discharge of material M from the hopper 1 is effected in the following manner:
The pair of hydraulic cylinders comprising cylinder 20a connected to the bucket member 7 is actuated to tilt the bucket member 7 outwardly to the position shown in FIG. 3, the bucket member 6 remaining stationary.
Tilting of the bucket member 7 decompresses or loosens the material in line with the previously closed junction line of the bottoms 10 and ltla of the bucket members 6, 7. The loosened material is discharged beneath the hopper as indicated in FIG. 3 through the space E between the normally contacting edges of the bucket members 6 and 7. This discharge will continue until the loosened material assumes its slope of repose as indicated at T.
Thereafter, the bucket member 6 is tilted inwardly to the position shown in FIG. 4, so that it is completely emptied, the material being discharged through a guide funnel comprising tiaps 24 and 25 which are shown connected to the cross-members 5.
The discharge is completed by tilting the bucket members 6 and 7 outwardly and inwardly, respectively, to the positions shown in FIG. 5. This movement will result in the final emptying of bucket member 7 which, as shown in FIGS, 3 and 4, was previously only partially emptied.
The discharge may be interrupted at will be restoring the bucket members 6 and 7 to their normal positions as shown in FIG. 1.
As shown in FIG. 1, the curved edges 17, 17a may be modified to have the arcuate shape indicated in dotdash lines at 26, 26a. If the modified shape 26, 26a is used, material may ow outwardly beyond the edges 14, 14a as well as downwardly between the edges 14, 14a when the two bucket members 6 and 7 are tilted inwardly toward each other.
While I have shown and described what I believe to be the best embodiments of 'my invention, it will be apparent to those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Having now described my invention what I claim as new and desire to secure by Letters Patent is:
1. A hopper of the class described, comprising: a pair of confronting bucket members having normally substantially horizontal and coplanar iiat bottom portions, each of said bucket members being open at the side which faces the other and each communicating with the other through said open side, means supporting said bucket members for individual pivotal movement about 35 horizontally spaced parallel axes in either direction away from their respective normal positions, lateral portions of said bucket members being cut away to permit individual pivotal movement of either bucket member in either direction independently of the other, said bottom portions having rectilinear edges which are normally etectively in contact with each other and equidistant from said axes, a pair of spaced parallel side plate members extending perpendicularly to said axes and laterally enclosing said cut away portions, and separate displacement means connected to each bucket member fo` effecting said individual pivotal movement thereof.
2. A hopper according to claim 1, wherein said lateral portions are cut away to define edges the lower portions of which are shaped as sectors of circles concentric with said axes, the lower ends of said sectors passing through said rectilinear edges.
3. A hopper according to claim 1, wherein said lateral portions are cut away to an extent suiiicient to permit simultaneous displacement of both of said bucket members in the same direction with their respective bottom portions maintained parallel.
4. A hopper according to claim 1, whereinsaid displacement means comprises hydraulic cylinder means.
References Cited in the tile of this patent UNITED STATES PATENTS 779,908 Clark Jan. 10, 1905 2,136,890 Roberts Nov. 15, 1938 2,437,302 Maxon Mar. 9, 1948 2,501,743 Schellentrager Mar. 28, 1950 2,836,332 Standish et al. Mar. 27, 1958 FOREIGN PATENTS 108,165 Switzerland Apr. 16, 1925 744,995 France Jan. 3l, 1933
US792803A 1958-02-15 1959-02-12 Hopper capable of being emptied in a regulatable manner Expired - Lifetime US3019949A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123017A (en) * 1958-12-04 1964-03-03 Open railroad car
US3271078A (en) * 1965-05-18 1966-09-06 Caterpillar Tractor Co Rock wagon
US3343725A (en) * 1965-06-09 1967-09-26 Hoover Ball & Bearing Co Bottom discharge bin
US5599071A (en) * 1994-11-23 1997-02-04 Kann Manufacturing Corporation Multi-compartmentalized dumping body with movable floor
US5716103A (en) * 1994-11-23 1998-02-10 Kann Manufacturing Corp. Multi-compartmentalized dumping body with segmented bulkhead
NL1013237C2 (en) * 1999-10-07 2001-04-17 Verhagen Leiden B V Cart for collecting e.g. crops or rubbish, has pre tensioning device acting upon both pivotably connected bodywork sections
US20160060823A1 (en) * 2014-08-29 2016-03-03 Joseph Voegele Ag Construction machine with offset hopper rear walls

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US779908A (en) * 1904-02-02 1905-01-10 Jabez F Clark Dumping-wagon.
CH108165A (en) * 1924-03-18 1925-04-16 M Schnyder Silo closure.
FR744995A (en) * 1933-04-29
US2136890A (en) * 1937-12-13 1938-11-15 Joel M Roberts Excavating bucket
US2437302A (en) * 1942-01-19 1948-03-09 T L Smith Co Concrete mixing plant
US2501743A (en) * 1945-06-09 1950-03-28 Atlas Bolt & Screw Co Bottom-dump hopper
US2836332A (en) * 1955-11-08 1958-05-27 Omaha Standard Inc Hopper

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR744995A (en) * 1933-04-29
US779908A (en) * 1904-02-02 1905-01-10 Jabez F Clark Dumping-wagon.
CH108165A (en) * 1924-03-18 1925-04-16 M Schnyder Silo closure.
US2136890A (en) * 1937-12-13 1938-11-15 Joel M Roberts Excavating bucket
US2437302A (en) * 1942-01-19 1948-03-09 T L Smith Co Concrete mixing plant
US2501743A (en) * 1945-06-09 1950-03-28 Atlas Bolt & Screw Co Bottom-dump hopper
US2836332A (en) * 1955-11-08 1958-05-27 Omaha Standard Inc Hopper

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123017A (en) * 1958-12-04 1964-03-03 Open railroad car
US3271078A (en) * 1965-05-18 1966-09-06 Caterpillar Tractor Co Rock wagon
US3343725A (en) * 1965-06-09 1967-09-26 Hoover Ball & Bearing Co Bottom discharge bin
US5599071A (en) * 1994-11-23 1997-02-04 Kann Manufacturing Corporation Multi-compartmentalized dumping body with movable floor
US5716103A (en) * 1994-11-23 1998-02-10 Kann Manufacturing Corp. Multi-compartmentalized dumping body with segmented bulkhead
US5769501A (en) * 1996-05-28 1998-06-23 Kann Manufacturing Corporation Multi-compartmentalized dumping body with movable floor and bulkhead latch
NL1013237C2 (en) * 1999-10-07 2001-04-17 Verhagen Leiden B V Cart for collecting e.g. crops or rubbish, has pre tensioning device acting upon both pivotably connected bodywork sections
US20160060823A1 (en) * 2014-08-29 2016-03-03 Joseph Voegele Ag Construction machine with offset hopper rear walls

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