CA1159313A - Metering system for seed and granular material - Google Patents
Metering system for seed and granular materialInfo
- Publication number
- CA1159313A CA1159313A CA000397589A CA397589A CA1159313A CA 1159313 A CA1159313 A CA 1159313A CA 000397589 A CA000397589 A CA 000397589A CA 397589 A CA397589 A CA 397589A CA 1159313 A CA1159313 A CA 1159313A
- Authority
- CA
- Canada
- Prior art keywords
- control plate
- discharge
- fixed control
- upper fixed
- trailing edge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/08—Broadcast seeders; Seeders depositing seeds in rows
- A01C7/10—Devices for adjusting the seed-box ; Regulation of machines for depositing quantities at intervals
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C15/00—Fertiliser distributors
- A01C15/04—Fertiliser distributors using blowers
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/08—Broadcast seeders; Seeders depositing seeds in rows
- A01C7/081—Seeders depositing seeds in rows using pneumatic means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/34—Emptying devices
- B65G65/40—Devices for emptying otherwise than from the top
- B65G65/42—Devices for emptying otherwise than from the top using belt or chain conveyors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fertilizing (AREA)
Abstract
"METERING SYSTEM FOR SEED AND GRANULAR MATERIAL"
ABSTRACT OF THE DISCLOSURE
In one embodiment, one or more sealed tanks is pro-vided to hold seed or a granular material such as fertil-izer, herbicide or the like and an adjustable side plate at the base thereof controls the amount discharging therefrom.
An endless open mesh type chain includes an upper run and a lower run and is driven from a ground wheel or the like.
The material drops onto the upper run which has a stationary control plate below the discharge of the tank. The material is moved along the plate by the chain until the edge of the plate is reached whereupon the material drops onto and through the lower run which includes a lower plate supporting same. It is moved in the opposite direction by the lower run to an adjustable discharge communicating within the air tube of an air seeder or the like. The tank or tanks is sealed and pressurized by the air in the air tube. In one embodiment a plurality of louvers is formed through the lower plate to allow the material to be desposited into the air tube without turbulence occurring. In another embodiment, an endless chain and control system is provided for each of a plurality of tanks all operatively connected to the air tube and in a still further embodiment, a venturi may be pro-vided adjacent the discharge into the air tube thereby elimina-ting the necessity or reducing the requirements for pressur-izing the system.
ABSTRACT OF THE DISCLOSURE
In one embodiment, one or more sealed tanks is pro-vided to hold seed or a granular material such as fertil-izer, herbicide or the like and an adjustable side plate at the base thereof controls the amount discharging therefrom.
An endless open mesh type chain includes an upper run and a lower run and is driven from a ground wheel or the like.
The material drops onto the upper run which has a stationary control plate below the discharge of the tank. The material is moved along the plate by the chain until the edge of the plate is reached whereupon the material drops onto and through the lower run which includes a lower plate supporting same. It is moved in the opposite direction by the lower run to an adjustable discharge communicating within the air tube of an air seeder or the like. The tank or tanks is sealed and pressurized by the air in the air tube. In one embodiment a plurality of louvers is formed through the lower plate to allow the material to be desposited into the air tube without turbulence occurring. In another embodiment, an endless chain and control system is provided for each of a plurality of tanks all operatively connected to the air tube and in a still further embodiment, a venturi may be pro-vided adjacent the discharge into the air tube thereby elimina-ting the necessity or reducing the requirements for pressur-izing the system.
Description
S~3~3 "METERING SYSTEM FOR SEED AND GRANULAR MATERIAL"
BACKGRO~ND OF THE INVENTION
This invention relates to new and useful improve-ments in metering systems designed primaily for use with air seeders or the like, although it wil] be appreciated that the invention can be used in other environments if desired.
Air seeders, which include an air tube through which an air stream passes, are designed so that grain or the like may be picked up by the air stream and then dis-tributed by well known means to the individual ground engag-ing seeder feet or the like.
It is often necessary or desirable to also provide a granular or comminuted solid material such as fertili~er, herbicide or the like. This may be provided either at the same time the seeding action is taking place or as an indi-vidual process.
When iL is desirable to provide one or more gran-ular materials at the same time that the seed is deposited, difficulty occurs with conventional machines in efficently mixing the two materials and discharging same at a relative-ly even rate at each seeder foot.
Difficulty is also encountered with different si~es and characteristLcs oE seed. For example~ the charac-teristics oE wheat, bar-Ley and the Like are totally dLffer-ent from the characteristics of a relatively fine seed such as rape seed. DLEficuLties are intensified when such diEfer-:: , ' ' ' ` ~.;
~S~3~l3
BACKGRO~ND OF THE INVENTION
This invention relates to new and useful improve-ments in metering systems designed primaily for use with air seeders or the like, although it wil] be appreciated that the invention can be used in other environments if desired.
Air seeders, which include an air tube through which an air stream passes, are designed so that grain or the like may be picked up by the air stream and then dis-tributed by well known means to the individual ground engag-ing seeder feet or the like.
It is often necessary or desirable to also provide a granular or comminuted solid material such as fertili~er, herbicide or the like. This may be provided either at the same time the seeding action is taking place or as an indi-vidual process.
When iL is desirable to provide one or more gran-ular materials at the same time that the seed is deposited, difficulty occurs with conventional machines in efficently mixing the two materials and discharging same at a relative-ly even rate at each seeder foot.
Difficulty is also encountered with different si~es and characteristLcs oE seed. For example~ the charac-teristics oE wheat, bar-Ley and the Like are totally dLffer-ent from the characteristics of a relatively fine seed such as rape seed. DLEficuLties are intensified when such diEfer-:: , ' ' ' ` ~.;
~S~3~l3
-2-ent seed varieties are planted with one or more granular or comminuted materials.
SIJMMARY OF THE INVENTION
.. . ... . . .
The present invention overcomes such disadvantages by providing firstly an efficient metering system for the initial feeding of the seed and/or materials Erom containers, and secondly efficiently mixing the materials with the seed or with one another and depositing same into the air stream of the air twbe.
10In accordance with the invention there is provided a metering system for seed, granulated material, comminut-ed material and the like for use with an air seeder or the : like which includes an air tube having an air stream ilowing therethrough, comprising in combination; at least one con-tainer for holding material to be metered into the air tube, a discharge at the base thereof, adjustable means associated with said discharge to control the rate of material through said discharge, an endless, open linked or meshed belt, spaced apart means mounting said belt for movement around said spaced apart means whereby said belt includes an upper run moving in one direction and a lower run spaced and parallel to said upper run and moving in an opposite direc-tion, fixed control plate means situated immediately under and ln contact with part oE said upper run and sa:Ld d:Lscharge~
to receive rnaterial. passing throwgh said open Linlced be:Lt, said open l:Lnked be].t mov:lng sa:Lcl material along sa:id control plate to the leading edge thereoE, discharge means under at least part of the lower run of said belt operatively con-nected to the interior of said air tube and, means to drive said belt.
Another advantage of the invention is to provide full control over the various aspects of the system so that efficient delivery of the seed and/or materials to the air tube may be carried out. This includes a control gate for each discharge of each container and, in one embodiment, an adjustable control for the discharge into the air tube.
Another advantage of the invention is to provide a device of the character herewithin described which can either be pressurized or, alternatively, can include a ven-turi in the air tube which reduces pressure at the discharge into the air tube thereby eliminating or reducing the ne-cessity of a pressurized system.
A yet further advantage of the invention is to provide a device of the character herewithin described which is simple in construction, economical in~manufacture and otherwise well suited to the purpose for which it is designed.
With the foregoing in view, and other advantages as wiLl become apparent to those skilled in the art to which this LnventLon relates as this specificat-Lon proceeds, the invention is hereLn described by reEerence to the accompanying clrawin~s ~orming a part hereof, whLch includes ' . ~
, .
-4- ~1 59 31 3 a description of the preferred typical embodiment of the principles of the present invention, in which:
DESCRIPTION OF THE DRAWINGS
~ ... . .
Figure 1 is a partially schematic cross sectional side elevation of one embodiment of the device.
Figure lA is an enlarged fragmentary cross sec-tional side elevation of an alternative embodiment showing the lower discharge into the air tube.
Figure 2 is a view similar to Figure 1 but showing an alternative embodiment.
Figure 3 is an enlarged fragmentary cross sec-tional elevation substantially along the line 3-3 of Figure `
2.
Figure 4 is an enlarged fragmentary top plan view of one embodiment of the control gate to the tank or con-tainer discharge.
Figure 5 is a view similar to Figure 3 but show-ing a cross sectional view similar to Figure 3 but taken along the line 5-5 of Figure 1.
Figure 6 is a view similar to Figure 1 but showing an alternative embodiment.
Figure 7 is an enlarged fragmentary plan view of a portion of one type of endless belt which may be used wLth the invention.
In the drawLng~s lLke characters of reference indi-c~te corre~sponding parts in the different fi~ures.
:
., ~
~LS~313 DETAILED DESCRIPTION
Proceeding therefore to describe the invention in detail, reference should first be made to Figure 1 in which a pair of containers lO or L1 are illustrated in side by side relationship and which, in this embodiment, are formed from a single container with a vertical divider 12 defi.n-ing the two tanks or containers. However it will be appre-ciated that one or more such containers may be provided either in the form of individual tanks or by the provision lOof baffles in a single tank or container to provide a plurality of compartments each of which may hold seed and/or different granular or comminuted materials as desired.
Each container 10 or ll is provided with a dis- ~
charge 13 at the base of the sloping sides 14 thereof and ;
each discharge is provided with adjustable means collective-ly designated 15 for controlling the amount and flow charac-teristics of the material passing through the discharge 13 One embodiment of such adjustable means is shown in Figures 4 and 5. A control gate housing 16 is provided with side guides to support and guide a control gate or slide plate 17 which is moved inwardly or outwaraly relative to the discharge 13 by means of a crank 18 having a screw threaded inner end 19 engageable with a corresponding nut 20 welded to ad~acent the outer end of ~he control gate or plate 17. Flanges 21 on the screw threaded portion adjacent ' -the crank 18 thereof mount the crank for rotation within one end 22 of the housing so that rotation of the crank in either direction moves the plate inwardly and outwardly be-cause of the engagement of the screw threaded portion 19 with the nut 20.
The housing extends across the discharge as clear-ly shown in Figure 5 so that the control gate or plate canor close off the discharge completely /open same to the neces-sary degree required.
The tank or containers 10 or 11 are mounted upon an enclosure 23 which includes vertical walls 24, top plates 25 and a lower side 26 having a portion of an air tube 27 passing along the lower side 26. Air tube 27 is convention-al and is provided with an air flow from a source of air pressure (not illustrated), it being understood that the a air tube extends to conventional distributors (not illustrat-ed).
A pair of drums or the like 28 are journalled for rotation upon spindLes 29 and are situated within the enclosure 23 and at least one drum is operatively connected to a ground engaging wheel 30 (shown schematically in Figure 2) secured to the air seed or the like (not illustrated). A
sprocket 31 is rotated by the ground engaging wheel and this in turn drlves a drive chain 32 extending around this Spl-OC-ket flnd around a urther sprocket 33 secured to one of the spi.nclles 2~ thus rotating thi.s spindle and the assoc:lated , : ~, .: , .
.. . :
--7_ ~S~313 drum 28. If desired, both drums may be driven from the ground wheel 30.
An endless belt is provided collectively designat-ed 34 and this belt is in the form of an open meshed or open linked belt such as that illustrated in Figure 7 and indi~
cated by reference character 35. It is preferably made from metal links 36 mounted upon spaced and parallel cross rods 37 but any such belt may be used provided it is open meshed and includes apertures 38 therethrough.
The drums or the like are provided with project-ing cogs or teeth 39 engaging the links 36 of the belt thus rotating the belt so that the upper run 40 moves in the :~
direction of arrow 41 and the lower run 42 moves in the direction of arrow 43.
An upper fixed control plate 43 is supported with-in the enclosure 23, immediately below each discharge 13 and in contact with the upper run 40 of the belt 34 and ex-tends upon either side o the discharge with the leading edge 44 of the plate extending downstream of the discharge as clearly shown in the drawings. This means that material passing through the discharge, also passes through the open meshed belt 34 onto the upper fixed control plate and is moved, by the open meshed belt, along the control plate to be discharged over the leading edge 4~ as shown schematica:Lly in Figure l.
Frorn there the mater:Lal falls onto the lower run I' ,~
~15~313 42 of the belt and this lower run rests upon a lower support plate 26A which constitutes the aforementioned lower side of the enclosure and is therefore carried along this support plate by the open meshed belt.
Discharge means 45 is provided through this lower control plate adjacent one end 46 thereof, said discharge means opening into the aforementioned air tube 27 so that the material is picked up by the air stream and conveyed to the distributors etc.
Reference to Figure 1 will show that the different materials for example contained in tanks or containers 10 or 11 are premixed and they are moved along the lower con-trol plate 26A and prior to the discharge through the dis- ;
charge opening 45.
This discharge opening may be controlled by means of a slide plate 47 adjusted by a rod 48 having a crank 49 thereon and mounted within the lower side 26 of the enclosure, said rod operating in a manner similar to the rod 18 and 19 which controls the the control gate 17.
In this embodiment, both the tanks or containers 10 and 11, together with the enclosure 23 are sealed and are therefore pressurized by the air pressure of the air stream passing through t'ne air tube 27.
~he pre:Eerred embodiment is shown in F:Lgures 2 ancl
SIJMMARY OF THE INVENTION
.. . ... . . .
The present invention overcomes such disadvantages by providing firstly an efficient metering system for the initial feeding of the seed and/or materials Erom containers, and secondly efficiently mixing the materials with the seed or with one another and depositing same into the air stream of the air twbe.
10In accordance with the invention there is provided a metering system for seed, granulated material, comminut-ed material and the like for use with an air seeder or the : like which includes an air tube having an air stream ilowing therethrough, comprising in combination; at least one con-tainer for holding material to be metered into the air tube, a discharge at the base thereof, adjustable means associated with said discharge to control the rate of material through said discharge, an endless, open linked or meshed belt, spaced apart means mounting said belt for movement around said spaced apart means whereby said belt includes an upper run moving in one direction and a lower run spaced and parallel to said upper run and moving in an opposite direc-tion, fixed control plate means situated immediately under and ln contact with part oE said upper run and sa:Ld d:Lscharge~
to receive rnaterial. passing throwgh said open Linlced be:Lt, said open l:Lnked be].t mov:lng sa:Lcl material along sa:id control plate to the leading edge thereoE, discharge means under at least part of the lower run of said belt operatively con-nected to the interior of said air tube and, means to drive said belt.
Another advantage of the invention is to provide full control over the various aspects of the system so that efficient delivery of the seed and/or materials to the air tube may be carried out. This includes a control gate for each discharge of each container and, in one embodiment, an adjustable control for the discharge into the air tube.
Another advantage of the invention is to provide a device of the character herewithin described which can either be pressurized or, alternatively, can include a ven-turi in the air tube which reduces pressure at the discharge into the air tube thereby eliminating or reducing the ne-cessity of a pressurized system.
A yet further advantage of the invention is to provide a device of the character herewithin described which is simple in construction, economical in~manufacture and otherwise well suited to the purpose for which it is designed.
With the foregoing in view, and other advantages as wiLl become apparent to those skilled in the art to which this LnventLon relates as this specificat-Lon proceeds, the invention is hereLn described by reEerence to the accompanying clrawin~s ~orming a part hereof, whLch includes ' . ~
, .
-4- ~1 59 31 3 a description of the preferred typical embodiment of the principles of the present invention, in which:
DESCRIPTION OF THE DRAWINGS
~ ... . .
Figure 1 is a partially schematic cross sectional side elevation of one embodiment of the device.
Figure lA is an enlarged fragmentary cross sec-tional side elevation of an alternative embodiment showing the lower discharge into the air tube.
Figure 2 is a view similar to Figure 1 but showing an alternative embodiment.
Figure 3 is an enlarged fragmentary cross sec-tional elevation substantially along the line 3-3 of Figure `
2.
Figure 4 is an enlarged fragmentary top plan view of one embodiment of the control gate to the tank or con-tainer discharge.
Figure 5 is a view similar to Figure 3 but show-ing a cross sectional view similar to Figure 3 but taken along the line 5-5 of Figure 1.
Figure 6 is a view similar to Figure 1 but showing an alternative embodiment.
Figure 7 is an enlarged fragmentary plan view of a portion of one type of endless belt which may be used wLth the invention.
In the drawLng~s lLke characters of reference indi-c~te corre~sponding parts in the different fi~ures.
:
., ~
~LS~313 DETAILED DESCRIPTION
Proceeding therefore to describe the invention in detail, reference should first be made to Figure 1 in which a pair of containers lO or L1 are illustrated in side by side relationship and which, in this embodiment, are formed from a single container with a vertical divider 12 defi.n-ing the two tanks or containers. However it will be appre-ciated that one or more such containers may be provided either in the form of individual tanks or by the provision lOof baffles in a single tank or container to provide a plurality of compartments each of which may hold seed and/or different granular or comminuted materials as desired.
Each container 10 or ll is provided with a dis- ~
charge 13 at the base of the sloping sides 14 thereof and ;
each discharge is provided with adjustable means collective-ly designated 15 for controlling the amount and flow charac-teristics of the material passing through the discharge 13 One embodiment of such adjustable means is shown in Figures 4 and 5. A control gate housing 16 is provided with side guides to support and guide a control gate or slide plate 17 which is moved inwardly or outwaraly relative to the discharge 13 by means of a crank 18 having a screw threaded inner end 19 engageable with a corresponding nut 20 welded to ad~acent the outer end of ~he control gate or plate 17. Flanges 21 on the screw threaded portion adjacent ' -the crank 18 thereof mount the crank for rotation within one end 22 of the housing so that rotation of the crank in either direction moves the plate inwardly and outwardly be-cause of the engagement of the screw threaded portion 19 with the nut 20.
The housing extends across the discharge as clear-ly shown in Figure 5 so that the control gate or plate canor close off the discharge completely /open same to the neces-sary degree required.
The tank or containers 10 or 11 are mounted upon an enclosure 23 which includes vertical walls 24, top plates 25 and a lower side 26 having a portion of an air tube 27 passing along the lower side 26. Air tube 27 is convention-al and is provided with an air flow from a source of air pressure (not illustrated), it being understood that the a air tube extends to conventional distributors (not illustrat-ed).
A pair of drums or the like 28 are journalled for rotation upon spindLes 29 and are situated within the enclosure 23 and at least one drum is operatively connected to a ground engaging wheel 30 (shown schematically in Figure 2) secured to the air seed or the like (not illustrated). A
sprocket 31 is rotated by the ground engaging wheel and this in turn drlves a drive chain 32 extending around this Spl-OC-ket flnd around a urther sprocket 33 secured to one of the spi.nclles 2~ thus rotating thi.s spindle and the assoc:lated , : ~, .: , .
.. . :
--7_ ~S~313 drum 28. If desired, both drums may be driven from the ground wheel 30.
An endless belt is provided collectively designat-ed 34 and this belt is in the form of an open meshed or open linked belt such as that illustrated in Figure 7 and indi~
cated by reference character 35. It is preferably made from metal links 36 mounted upon spaced and parallel cross rods 37 but any such belt may be used provided it is open meshed and includes apertures 38 therethrough.
The drums or the like are provided with project-ing cogs or teeth 39 engaging the links 36 of the belt thus rotating the belt so that the upper run 40 moves in the :~
direction of arrow 41 and the lower run 42 moves in the direction of arrow 43.
An upper fixed control plate 43 is supported with-in the enclosure 23, immediately below each discharge 13 and in contact with the upper run 40 of the belt 34 and ex-tends upon either side o the discharge with the leading edge 44 of the plate extending downstream of the discharge as clearly shown in the drawings. This means that material passing through the discharge, also passes through the open meshed belt 34 onto the upper fixed control plate and is moved, by the open meshed belt, along the control plate to be discharged over the leading edge 4~ as shown schematica:Lly in Figure l.
Frorn there the mater:Lal falls onto the lower run I' ,~
~15~313 42 of the belt and this lower run rests upon a lower support plate 26A which constitutes the aforementioned lower side of the enclosure and is therefore carried along this support plate by the open meshed belt.
Discharge means 45 is provided through this lower control plate adjacent one end 46 thereof, said discharge means opening into the aforementioned air tube 27 so that the material is picked up by the air stream and conveyed to the distributors etc.
Reference to Figure 1 will show that the different materials for example contained in tanks or containers 10 or 11 are premixed and they are moved along the lower con-trol plate 26A and prior to the discharge through the dis- ;
charge opening 45.
This discharge opening may be controlled by means of a slide plate 47 adjusted by a rod 48 having a crank 49 thereon and mounted within the lower side 26 of the enclosure, said rod operating in a manner similar to the rod 18 and 19 which controls the the control gate 17.
In this embodiment, both the tanks or containers 10 and 11, together with the enclosure 23 are sealed and are therefore pressurized by the air pressure of the air stream passing through t'ne air tube 27.
~he pre:Eerred embodiment is shown in F:Lgures 2 ancl
3 ~ncl include a plurality of louvers 50 through the .I.ower wall 2~ of the enclosure 23, these louvers prov.Lding a plur-~; . ;.
:. .~,., . :.
~, . ~... :. . .
., ~ ~ .. . .
. . : :~ . . : :
- ::
9 :~5~313 ality of spaced and parallel apertures communicating between the interior of the enclosure and the interior of the air tube 27.
The louvers 50 incline downwardly with the lower discharge edges 51 being in advance of the upper edges 53.
They act as baffles and the inclination thereof reduces turbulence at the entrance of the material into the air stream.
Figure 6 shows a still further embodiment which includes an endless belt 34A for each tank or container 10 or 11. Each belt operates in a manner similar to that here-inbefore described so that similar numbers have been given but are distinguished by the suffix "A".
Figure lA shows a still further embodiment which can be incorporated with either of the embodiments shown in Figure 1 or Figure 6 if the discharge 45 shown in Figure 1 is incorporated therein.
It includes a venturi 54 adjacent tne discharge 45 and so positioned as to provide an area of low pressure at the discharge 45. This picks up the grain and/or comminuted or granular material passing through the discharge yet pre-vents air from escaping upwardly through the discharge.
This reduces or elimLnates the necessity for sealing the system flnd can be utili~ed under certain circumstlnces.
Finally reference should be made to FLgure 4 in which the upper stationary control plate 43 is illustrated i "
. - , ;~LS~3t3:~3 in planned view. This shows the preferred embodiment. This control plate, which is stationary, includes a leading edge 55 which is perpendicular to the longitudinal or fore and aft axis thereof and a leading edge 56 which is inclined re-lative to the longitudinal axis so tha-t the leading side 57 of this edge is in advance of the trailing edge 58. This is useful particularly when incorporated with an endless meshed chain such as that illustrated in Figure 7 and when relative:Ly slow rates to seeding are required so that the low speed of the belt is relatively /. In particular, it is useful when used witn a relatively fine seed like rape seed or the like.
Under these circumstances, the thickness of the cross rods 37 of the chain together with the thickness of the links engaging the cross rods, can hold back material and then dump it over the edge of the plate if the leading ;~ edge is perpendicular to the longitudinal axis. This means that the seed is dropped incrementally through the endless chains and is unevenly distributed.
The inclined leading edge oE the plate ~3 material is constantly flowing from the plate thus eliminating this problem.
~ince various modifications can be made -in my in-vention as hereLnabove descrLbed, and many apparentLy wiclely dLfEerent ernbocliments oE same made within the spirit and scope oE the claims without departing from such spLrit and : :.
. ': :.
.. .
' Sg313 scope, it is intended that all matter contained in the accompanying specification shall be interpreted as illus-trative only and not in a limiting sense.
: ....
. ~ .
:. .~,., . :.
~, . ~... :. . .
., ~ ~ .. . .
. . : :~ . . : :
- ::
9 :~5~313 ality of spaced and parallel apertures communicating between the interior of the enclosure and the interior of the air tube 27.
The louvers 50 incline downwardly with the lower discharge edges 51 being in advance of the upper edges 53.
They act as baffles and the inclination thereof reduces turbulence at the entrance of the material into the air stream.
Figure 6 shows a still further embodiment which includes an endless belt 34A for each tank or container 10 or 11. Each belt operates in a manner similar to that here-inbefore described so that similar numbers have been given but are distinguished by the suffix "A".
Figure lA shows a still further embodiment which can be incorporated with either of the embodiments shown in Figure 1 or Figure 6 if the discharge 45 shown in Figure 1 is incorporated therein.
It includes a venturi 54 adjacent tne discharge 45 and so positioned as to provide an area of low pressure at the discharge 45. This picks up the grain and/or comminuted or granular material passing through the discharge yet pre-vents air from escaping upwardly through the discharge.
This reduces or elimLnates the necessity for sealing the system flnd can be utili~ed under certain circumstlnces.
Finally reference should be made to FLgure 4 in which the upper stationary control plate 43 is illustrated i "
. - , ;~LS~3t3:~3 in planned view. This shows the preferred embodiment. This control plate, which is stationary, includes a leading edge 55 which is perpendicular to the longitudinal or fore and aft axis thereof and a leading edge 56 which is inclined re-lative to the longitudinal axis so tha-t the leading side 57 of this edge is in advance of the trailing edge 58. This is useful particularly when incorporated with an endless meshed chain such as that illustrated in Figure 7 and when relative:Ly slow rates to seeding are required so that the low speed of the belt is relatively /. In particular, it is useful when used witn a relatively fine seed like rape seed or the like.
Under these circumstances, the thickness of the cross rods 37 of the chain together with the thickness of the links engaging the cross rods, can hold back material and then dump it over the edge of the plate if the leading ;~ edge is perpendicular to the longitudinal axis. This means that the seed is dropped incrementally through the endless chains and is unevenly distributed.
The inclined leading edge oE the plate ~3 material is constantly flowing from the plate thus eliminating this problem.
~ince various modifications can be made -in my in-vention as hereLnabove descrLbed, and many apparentLy wiclely dLfEerent ernbocliments oE same made within the spirit and scope oE the claims without departing from such spLrit and : :.
. ': :.
.. .
' Sg313 scope, it is intended that all matter contained in the accompanying specification shall be interpreted as illus-trative only and not in a limiting sense.
: ....
. ~ .
Claims
CLAIMS:
(1) A metering system for seed, granulated material, comminuted material and the like for use with an air seeder or the like which includes an air tube having an air stream flowing therethrough, comprising in combination;
a) at least one container for holding material to be metered into the air tube, b) a discharge at the base thereof, c) adjustable means associated with said discharge to control the rate of material through said discharge, d) an endless, open linked or meshed belt, e) spaced apart means mounting said belt for move-ment around said spaced apart means whereby said belt in-cludes an upper run moving in one direction and a lower run spaced and parallel to said upper run and moving in an opposite direction, f) fixed control plate means situated immediately under and in contact with part of said upper run and said discharge, to receive material passing through said open linked belt, said open linked belt moving said material a-long said control plate to the leading edge thereof, g) discharge means under at least part of the lower run of said belt operatively connected to the interior of said air tube and, h) means to drive said belt.
(2) The system according to Claim 1 in which said discharge means under at least part of said lower run of said belt includes, lower a) a/support plate under said lower run of said belt and in contact therewith, and b) a discharge through said support plate communi-cating with the interior of said air tube.
(3) The system according to Claim 2 which in-cludes an adjustable control plate operatively connected lower with the discharge through said/support plate for controll-ing the flow of material into said air tube.
(4) The system according to Claim 1 in which said discharge means under at least part of the lower run of said belt includes a plurality of louvers below said lower run communicating with the interior of said air tube, said lou-vers inclining downwardly and with the lower edge thereof being downstream of the upper edge thereof thereby reducing turbulence of the air stream passing through said air tube in the vicinity of said louvers.
(5) The system according to Claim 1 in which said system is sealed for pressurizing by the air stream flowing through said air tube.
(6) The system according to Claim 2 in which said system is sealed for pressurizing by the air stream flowing through said air tube.
(7) The system according to Claim 3 in which said system is sealed for pressurizing by the air stream flowing through said air tube.
(8) The system according to Claim 4 in which said system is sealed for pressurizing by the air stream flowing through said air tube.
(9) The system according to Claim 1 which in-cludes means to reduce air pressure from said air stream from entering said system, said last mentioned means includ-ing a venturi within said air tube adjacent said discharge means under said lower run of said belt.
(10) The system according to Claim 2 which in-cludes means to reduce air pressure from said air stream from entering said system, said last mentioned means includ-ing a venturi within said air tube adjacent said discharge means under said lower run of said belt.
(11) The system according to Claim 3 which in-cludes means to reduce air pressure from said air stream from entering said system, said last mentioned means includ-ing a venturi within said air tube adjacent said discharge means under said lower run of said belt.
(12) The system according to Claim 1 which in-cludes, a) at least two containers, each container con-taining different materials therein, and b) a discharge at the base of each of said container;
c) adjustable means associated with each discharge to control the rate of material through said discharge and, d) a fixed control plate means situated immediate-ly under and in contact with the part of said upper run and the discharge of each of said containers.
(13) The system according to Claim 12 in which said discharge means under at least part of said lower run of said belt includes, a) a lower support plate under said lower run of said belt and in contact therewith, and b) a discharge through said support plate communi-cating with the interior of said air tube.
(14) The system according to Claim 12 which in-cludes an adjustable control plate operatively connected with the discharge through said lower support plate for con-trolling the flow of material into said air tube.
(15) The system according to Claim 12 in which said discharge means under at least part of the lower run of said belt includes a plurality of louvers below said lower run communicating with the interior of said air tube, said louvers inclining downwardly and with the lower edge thereof being downstream of the upper edge thereof thereby reducing turbulence of the air stream passing through said air tube in the vicinity of said louvers.
(16) The system according to Claim 12 in which said system is sealed for pressurizing by the air stream flowing through said air tube.
(17) The system according to Claim 12 which in-cludes means to reduce air pressure from said air stream from entering said system, said last mentioned means includ-ing a venturi within said air tube adjacent said discharge means under said lower run of said belt.
(18) The system according to Claim 12 which in-cludes, a) an endless, open linked or meshed belt for each of said containers, b) spaced apart support means for each belt for mounting said belt for movement around said support means whereby each belt includes an upper run moving in one direc-tion and a lower run spaced and parallel to said upper run and moving in an opposite direction and, c) an upper fixed control plate means situated immediately under and in contact with the part of the upper run of each of said belts and said discharge of each of said containers, to receive material passing through said open linked belts, said open linked belts moving said material along said upper fixed control plates to the leading edge thereof and, means to drive each of said belts.
(19) The system according to Claim 18 in which said discharge means under at least part of said lower run of said belt includes, a) a lower support plate under said lower run of said belt and in contact therewith, and b) a discharge through said support plate communi-cating with the interior of said air tube.
(20) The system according to Claim 19 which in-cludes an adjustable control plate operatively connected with the discharge through said lower support plate for con-trolling the flow of material into said air tube.
(21) The system according to Claim 18 in which said discharge means under at least part of the lower run of said belt includes a plurality of louvers below said lower run communicating with the interior of said air tube, said louvers inclining downwardly and with the lower edge thereof being downstream of the upper edge thereof thereby reducing turbulence of the air stream passing through said air tube in the vicinity of said louvers.
(22) The system according to Claim 18 in which said system is sealed for pressurizing by the air stream flowing through said air tube.
(23) The system according to Claim 18 which in-cludes means to reduce air pressure from said air stream from entering said system, said last mentioned means includ-ing a venturi within said air tube adjacent said discharge means under said Lower run of said belt.
(24) The system according to Claims 1, 2 or 3 in which said upper fixed control plate includes a leading edge and a trailing edge, said trailing edge constituting a discharge end of said upper fixed control plate whereby material moved by said upper run is discharged from said upper fixed control plate onto and through said lower run, said trailing edge being inclined at an angle to the longi-tudinal axis of said upper fixed control plate with the leading side of said trailing edge being in advance of the trailing side thereof.
(25) The system according to Claims 4, 5 or 6 in which said upper fixed control plate includes a leading edge and a trailing edge, said trailing edge constituting a discharge end of said upper fixed control plate whereby material moved by said upper run is discharged from said upper fixed control plate onto and through said lower run, said trailing edge being inclined at an angle to the longi-tudinal axis of said upper fixed control plate with the leading side of said trailing edge being in advance of the trailing side thereof.
(26) The system according to Claims 7, 8 or 9 in which said upper fixed control plate includes a leading edge and a trailing edge, said trailing edge constituting a discharge end of said upper fixed control plate whereby material moved by said upper run is discharged from said upper fixed control plate onto and through said lower run, said trailing edge being inclined at an angle to the longi-tudinal axis of said upper fixed control plate with the leading side of said trailing edge being in advance of the trailing side thereof.
(27) The system according to Claims 10, 11 or 12 in which said upper fixed control plate includes a leading edge and a trailing edge, said trailing edge constituting a discharge end of said upper fixed control plate whereby material moved by said upper run is discharged from said upper fixed control plate onto and through said lower run, said trailing edge being inclined at an angle to the longi-tudinal axis of said upper fixed control plate with the leading side of said trailing edge being in advance of the trailing side thereof.
(28) The system according to Claims 13, 14 or 15 in which said upper fixed control plate includes a leading edge and a trailing edge, said trailing edge constituting a discharge end of said upper fixed control plate whereby material moved by said upper run is discharged from said upper fixed control plate onto and through said lower run, said trailing edge being inclined at an angle to the longi-tudinal axis of said upper fixed control plate with the leading side of said trailing edge being in advance of the trailing side thereof.
(29) The system according to Claims 16, 17 or 18 in which said upper fixed control plate includes a leading edge and a trailing edge, said trailing edge constituting a discharge end of said upper fixed control plate whereby material moved by said upper run is discharged from said upper fixed control plate onto and through said lower run, said trailing edge being inclined at an angle to the longi-tudinal axis of said upper fixed control plate with the leading side of said trailing edge being in advance of the trailing side thereof.
(30) The system according to Claims 19, 20 or 21 in which said upper fixed control plate includes a leading edge and a trailing edge, said trailing edge constituting a discharge end of said upper fixed control plate whereby material moved by said upper run is discharged from said upper fixed control plate onto and through said lower run, said trailing edge being inclined at an angle to the longi-tudinal axis of said upper fixed control plate with the leading side of said trailing edge being in advance of the trailing side thereof.
(31) The system according to Claims 22 or 23 in which said upper fixed control plate includes a leading edge and a trailing edge, said trailing edge constituting a discharge end of said upper fixed control plate whereby material moved by said upper run is discharged from said upper fixed control plate onto and through said lower run, said trailing edge being inclined at an angle to the longi-tudinal axis of said upper fixed control plate with the leading side of said trailing edge being in advance of the trailing side thereof.
(1) A metering system for seed, granulated material, comminuted material and the like for use with an air seeder or the like which includes an air tube having an air stream flowing therethrough, comprising in combination;
a) at least one container for holding material to be metered into the air tube, b) a discharge at the base thereof, c) adjustable means associated with said discharge to control the rate of material through said discharge, d) an endless, open linked or meshed belt, e) spaced apart means mounting said belt for move-ment around said spaced apart means whereby said belt in-cludes an upper run moving in one direction and a lower run spaced and parallel to said upper run and moving in an opposite direction, f) fixed control plate means situated immediately under and in contact with part of said upper run and said discharge, to receive material passing through said open linked belt, said open linked belt moving said material a-long said control plate to the leading edge thereof, g) discharge means under at least part of the lower run of said belt operatively connected to the interior of said air tube and, h) means to drive said belt.
(2) The system according to Claim 1 in which said discharge means under at least part of said lower run of said belt includes, lower a) a/support plate under said lower run of said belt and in contact therewith, and b) a discharge through said support plate communi-cating with the interior of said air tube.
(3) The system according to Claim 2 which in-cludes an adjustable control plate operatively connected lower with the discharge through said/support plate for controll-ing the flow of material into said air tube.
(4) The system according to Claim 1 in which said discharge means under at least part of the lower run of said belt includes a plurality of louvers below said lower run communicating with the interior of said air tube, said lou-vers inclining downwardly and with the lower edge thereof being downstream of the upper edge thereof thereby reducing turbulence of the air stream passing through said air tube in the vicinity of said louvers.
(5) The system according to Claim 1 in which said system is sealed for pressurizing by the air stream flowing through said air tube.
(6) The system according to Claim 2 in which said system is sealed for pressurizing by the air stream flowing through said air tube.
(7) The system according to Claim 3 in which said system is sealed for pressurizing by the air stream flowing through said air tube.
(8) The system according to Claim 4 in which said system is sealed for pressurizing by the air stream flowing through said air tube.
(9) The system according to Claim 1 which in-cludes means to reduce air pressure from said air stream from entering said system, said last mentioned means includ-ing a venturi within said air tube adjacent said discharge means under said lower run of said belt.
(10) The system according to Claim 2 which in-cludes means to reduce air pressure from said air stream from entering said system, said last mentioned means includ-ing a venturi within said air tube adjacent said discharge means under said lower run of said belt.
(11) The system according to Claim 3 which in-cludes means to reduce air pressure from said air stream from entering said system, said last mentioned means includ-ing a venturi within said air tube adjacent said discharge means under said lower run of said belt.
(12) The system according to Claim 1 which in-cludes, a) at least two containers, each container con-taining different materials therein, and b) a discharge at the base of each of said container;
c) adjustable means associated with each discharge to control the rate of material through said discharge and, d) a fixed control plate means situated immediate-ly under and in contact with the part of said upper run and the discharge of each of said containers.
(13) The system according to Claim 12 in which said discharge means under at least part of said lower run of said belt includes, a) a lower support plate under said lower run of said belt and in contact therewith, and b) a discharge through said support plate communi-cating with the interior of said air tube.
(14) The system according to Claim 12 which in-cludes an adjustable control plate operatively connected with the discharge through said lower support plate for con-trolling the flow of material into said air tube.
(15) The system according to Claim 12 in which said discharge means under at least part of the lower run of said belt includes a plurality of louvers below said lower run communicating with the interior of said air tube, said louvers inclining downwardly and with the lower edge thereof being downstream of the upper edge thereof thereby reducing turbulence of the air stream passing through said air tube in the vicinity of said louvers.
(16) The system according to Claim 12 in which said system is sealed for pressurizing by the air stream flowing through said air tube.
(17) The system according to Claim 12 which in-cludes means to reduce air pressure from said air stream from entering said system, said last mentioned means includ-ing a venturi within said air tube adjacent said discharge means under said lower run of said belt.
(18) The system according to Claim 12 which in-cludes, a) an endless, open linked or meshed belt for each of said containers, b) spaced apart support means for each belt for mounting said belt for movement around said support means whereby each belt includes an upper run moving in one direc-tion and a lower run spaced and parallel to said upper run and moving in an opposite direction and, c) an upper fixed control plate means situated immediately under and in contact with the part of the upper run of each of said belts and said discharge of each of said containers, to receive material passing through said open linked belts, said open linked belts moving said material along said upper fixed control plates to the leading edge thereof and, means to drive each of said belts.
(19) The system according to Claim 18 in which said discharge means under at least part of said lower run of said belt includes, a) a lower support plate under said lower run of said belt and in contact therewith, and b) a discharge through said support plate communi-cating with the interior of said air tube.
(20) The system according to Claim 19 which in-cludes an adjustable control plate operatively connected with the discharge through said lower support plate for con-trolling the flow of material into said air tube.
(21) The system according to Claim 18 in which said discharge means under at least part of the lower run of said belt includes a plurality of louvers below said lower run communicating with the interior of said air tube, said louvers inclining downwardly and with the lower edge thereof being downstream of the upper edge thereof thereby reducing turbulence of the air stream passing through said air tube in the vicinity of said louvers.
(22) The system according to Claim 18 in which said system is sealed for pressurizing by the air stream flowing through said air tube.
(23) The system according to Claim 18 which in-cludes means to reduce air pressure from said air stream from entering said system, said last mentioned means includ-ing a venturi within said air tube adjacent said discharge means under said Lower run of said belt.
(24) The system according to Claims 1, 2 or 3 in which said upper fixed control plate includes a leading edge and a trailing edge, said trailing edge constituting a discharge end of said upper fixed control plate whereby material moved by said upper run is discharged from said upper fixed control plate onto and through said lower run, said trailing edge being inclined at an angle to the longi-tudinal axis of said upper fixed control plate with the leading side of said trailing edge being in advance of the trailing side thereof.
(25) The system according to Claims 4, 5 or 6 in which said upper fixed control plate includes a leading edge and a trailing edge, said trailing edge constituting a discharge end of said upper fixed control plate whereby material moved by said upper run is discharged from said upper fixed control plate onto and through said lower run, said trailing edge being inclined at an angle to the longi-tudinal axis of said upper fixed control plate with the leading side of said trailing edge being in advance of the trailing side thereof.
(26) The system according to Claims 7, 8 or 9 in which said upper fixed control plate includes a leading edge and a trailing edge, said trailing edge constituting a discharge end of said upper fixed control plate whereby material moved by said upper run is discharged from said upper fixed control plate onto and through said lower run, said trailing edge being inclined at an angle to the longi-tudinal axis of said upper fixed control plate with the leading side of said trailing edge being in advance of the trailing side thereof.
(27) The system according to Claims 10, 11 or 12 in which said upper fixed control plate includes a leading edge and a trailing edge, said trailing edge constituting a discharge end of said upper fixed control plate whereby material moved by said upper run is discharged from said upper fixed control plate onto and through said lower run, said trailing edge being inclined at an angle to the longi-tudinal axis of said upper fixed control plate with the leading side of said trailing edge being in advance of the trailing side thereof.
(28) The system according to Claims 13, 14 or 15 in which said upper fixed control plate includes a leading edge and a trailing edge, said trailing edge constituting a discharge end of said upper fixed control plate whereby material moved by said upper run is discharged from said upper fixed control plate onto and through said lower run, said trailing edge being inclined at an angle to the longi-tudinal axis of said upper fixed control plate with the leading side of said trailing edge being in advance of the trailing side thereof.
(29) The system according to Claims 16, 17 or 18 in which said upper fixed control plate includes a leading edge and a trailing edge, said trailing edge constituting a discharge end of said upper fixed control plate whereby material moved by said upper run is discharged from said upper fixed control plate onto and through said lower run, said trailing edge being inclined at an angle to the longi-tudinal axis of said upper fixed control plate with the leading side of said trailing edge being in advance of the trailing side thereof.
(30) The system according to Claims 19, 20 or 21 in which said upper fixed control plate includes a leading edge and a trailing edge, said trailing edge constituting a discharge end of said upper fixed control plate whereby material moved by said upper run is discharged from said upper fixed control plate onto and through said lower run, said trailing edge being inclined at an angle to the longi-tudinal axis of said upper fixed control plate with the leading side of said trailing edge being in advance of the trailing side thereof.
(31) The system according to Claims 22 or 23 in which said upper fixed control plate includes a leading edge and a trailing edge, said trailing edge constituting a discharge end of said upper fixed control plate whereby material moved by said upper run is discharged from said upper fixed control plate onto and through said lower run, said trailing edge being inclined at an angle to the longi-tudinal axis of said upper fixed control plate with the leading side of said trailing edge being in advance of the trailing side thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000397589A CA1159313A (en) | 1982-03-04 | 1982-03-04 | Metering system for seed and granular material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000397589A CA1159313A (en) | 1982-03-04 | 1982-03-04 | Metering system for seed and granular material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1159313A true CA1159313A (en) | 1983-12-27 |
Family
ID=4122216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000397589A Expired CA1159313A (en) | 1982-03-04 | 1982-03-04 | Metering system for seed and granular material |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1159313A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991017648A1 (en) * | 1990-05-18 | 1991-11-28 | Charles Balmer | Spreading of particulate material |
| WO1996030290A1 (en) * | 1995-03-31 | 1996-10-03 | Seabulk Systems Inc. | Materials handling system |
| US6571736B2 (en) | 2001-02-22 | 2003-06-03 | Lance H. Patterson | Feeder for moist fish feed |
| CN108156908A (en) * | 2017-12-26 | 2018-06-15 | 中国农业大学 | Miniature potato planter seeding quantity regulating device |
| CN116250401A (en) * | 2023-05-15 | 2023-06-13 | 山西省农业机械发展中心 | Precision seeding device and seeding method thereof |
-
1982
- 1982-03-04 CA CA000397589A patent/CA1159313A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991017648A1 (en) * | 1990-05-18 | 1991-11-28 | Charles Balmer | Spreading of particulate material |
| WO1996030290A1 (en) * | 1995-03-31 | 1996-10-03 | Seabulk Systems Inc. | Materials handling system |
| US6571736B2 (en) | 2001-02-22 | 2003-06-03 | Lance H. Patterson | Feeder for moist fish feed |
| CN108156908A (en) * | 2017-12-26 | 2018-06-15 | 中国农业大学 | Miniature potato planter seeding quantity regulating device |
| CN108156908B (en) * | 2017-12-26 | 2020-05-22 | 中国农业大学 | Seed metering amount adjusting device of miniature potato seeder |
| CN116250401A (en) * | 2023-05-15 | 2023-06-13 | 山西省农业机械发展中心 | Precision seeding device and seeding method thereof |
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| Date | Code | Title | Description |
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| MKEX | Expiry |