CA1088838A - Straw chopper and spreader - Google Patents
Straw chopper and spreaderInfo
- Publication number
- CA1088838A CA1088838A CA308,581A CA308581A CA1088838A CA 1088838 A CA1088838 A CA 1088838A CA 308581 A CA308581 A CA 308581A CA 1088838 A CA1088838 A CA 1088838A
- Authority
- CA
- Canada
- Prior art keywords
- straw
- blades
- casing
- chopping
- discharge
- 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
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F12/00—Parts or details of threshing apparatus
- A01F12/40—Arrangements of straw crushers or cutters
Abstract
STRAW CHOPPER AND SPREADER
ABSTRACT OF THE DISCLOSURE
A cylindrical casing secured at the rear of the threshing machine underneath the straw discharge thereof.
It is provided with a closed base panel and a partially open top panel through which the straw is fed. A pair of chopping blades are journalled for rotation within the casing and are angulated to create a downdraft within the casing. The straw is chopped by the blades and blown out through the apertured wall of the casing. The wall is open upon each side and the rear thereof through approximately 180° with vertical support bars between the upper and lower panels, said bars also assisting in the chopping ac-tion of the blades as the straw is thrown against the bars, as it is being discharged.
ABSTRACT OF THE DISCLOSURE
A cylindrical casing secured at the rear of the threshing machine underneath the straw discharge thereof.
It is provided with a closed base panel and a partially open top panel through which the straw is fed. A pair of chopping blades are journalled for rotation within the casing and are angulated to create a downdraft within the casing. The straw is chopped by the blades and blown out through the apertured wall of the casing. The wall is open upon each side and the rear thereof through approximately 180° with vertical support bars between the upper and lower panels, said bars also assisting in the chopping ac-tion of the blades as the straw is thrown against the bars, as it is being discharged.
Description
!33~
"STR~W CHOPPER AND SPREADER"
BACK_OUND OF THE INVENTION
This invention relates to new and useful improvements in straw chopping and spreading devices, particularly straw chopping and spreading devices situated below the straw dis-charge of a threshing machine such as a combine or the like.
Conventionally, such devices consist of a horizontally situated or vertically situated blade rotating and through which the straw is passed and partially chopped. The speed of the blade partially assists in the spreading action, but such devices are inefficient and spread the straw through approximately 360 so that part of the straw is blown or thrown against the rear of the combine with most of the straw directly behind the combine.
SUMM~RY OF THE INVENTION
-The present invention overcomes these disadvantages by providing a straw chopper and spreader which is adapted to be secured to the combine immediately below the straw discharge means and one aspect of the invention consists of a straw chop-per and spreader for attachment below the straw and chaff dis-charge of a grain threshing machine such as a combine or the like and adapted to be dri~en by a source of power on the ma-chine; comprising in combination a substantially horizontally located casing securable to said machine below the straw and chaff discharge thereof, straw and chaff intake means in the upper side of the casing operatively connectable to the straw B :
- . . . . . . . .
discharge, rotatable straw chopping means journalled for rota-tion in said casing and chopped straw discharge means through at least part of the wall of said casing, said straw casing means being operatlvely connectable to the source of power on the associated machine, said straw discharge means extending around said wall from one side, around the rear of said wall to the other side through approximately 180.
The straw chopper also acts to stabilize the rear of the combine and uses considerably less horsepower than conven-tional choppers~ It increases the capacity of the sieves and straw walkers by extracting the straw and chaff, together with the dust, and is more compact and lightweight than most conven-tional choppers.
Another advantage of the present invention is that ~-lS the straw and chaff is pulled down into the casing and through the chopping blades by means of the outer ends of the choppers being angulated and acting as fan blades. This draft action also forces the chopped straw and chaff onto the base of the casing and then outwardly through the discharge which extends ~0 approximately 160 so that the chopped straw and chaff is spread outwardly in a fan formation. The folding blades enables the device to handle the capacity of -the machine.
Another advantage of the present invention is that E~
. . ~ . . : . ~, it is simple in construction, economical in manufac-ture and otherwise well suited to the purpose for which it is design-ed.
With the foregoing in view, and other advantates as will become apparent to those skilled in the art to which this invention relates as this specification proceeds, the invention is herein described by reference to the accompany- ~-ing drawings forming a part hereof, which includes a de-scription of the preferred typical embodiment of the princi-i0 ples of the present invention, in which:
Figure 1 is a front elevation of the aevice shown attached underneath the straw discharge of a machine such as !~
a combine or the like (not illustrated).
Figure 2 is a side view of the device per se.
"'~', Figure 3 is an underside plan view of the device per se.
: '', Figure 4 is a top plan view of the device.
, '~'` ~ , In the drawings like characters of reference indi- -cate corresponding parts in the different figures.
lQ~ 3~
DETAILED DESCRIPTION
Proceeding therefore to describe the invention in detail, reference should be made to the accompanying draw-ings in which the spreader and chopper collectively designat-ed 10, is secured immediately below the straw discharge 11 of a combine, part of which is illustrated by the reference character 12. Brackets 13 or any other convenient means may be provided to secure the device below the straw discharge 11 and the attachment means shown in the drawings are meant to be schematic only.
The device collectively designated 10 comprises a substantially square or rectangular casing frame collective-ly designated 15 which includes a planar, substantially rec-tangular upper panel 16, a planar lower panel 17 in spaced and parallel relationship with the other panel 16 and a vertically situated cylindrical partial wall collectively designated 18 and extending between the upper and lower panels. A circular .
opening 16A in the upper panel 16 acts as the intake and is of substantially the same size and configuration as the lower circular panel 17 situated immediately therebelow. :~
~::
A directional plate 19 may extend from the upper side of the casing to the top side of 18 to funnel the straw ; ~rom the combine to the device.
, ~ , , - , , ~ .
1~ 3~
Part of the upper panel 16 (a portion approximately the same size as the lower panel 17) is cut away as at 16A to act as the aforementioned straw intake (see Figure 4) and the perimetrical wall 18 extends through approximately 180 around the front and part of each side of the device as clearly shown in Figure 2.
Part of the cylindrical wall is opened to form a ~::
straw discharge and in the present device, this portion ex-tends through approximately 180, around the rear and one part side of the device~ -Vertical struts or bars 21 are provided in spaced :`
and parallel relationship around the open discharge area of .
the cylindrical partial wall, said open discharge area being indicated by reference character 22 in the~drawings. These ~ -struts 21 also act as supports between the upper and lower panels 16 and 17. `
, ` '.
Straw chopping means collectively designated 23 are provided within the casing and in this embodiment, take the form of a vertically situated spindle 24 journalled for rota-tion within a bearing 25 supported upon the base panel 17 with said spindle extending through to the underside of the base 17 . , and having a V-pulley 25A secured to and at the lower end ~
. ~ :
. . ~` ', 3~
thereof, a second bea~ing 25B is provided with supporting braces 25C as clearly shown in Figure 2.
A drive belt 26 extends around this pulley 25A and around idler pulleys 28 supported in brackets 29 attached to the underside of 16 or 15. These pulleys are operatively con-nected to the source of power within the machine (not illus-trated) and rotate the shaft 24 in ei~her direction depending upon which machine to which the device is attached. A 90 angle gear box and shaft could be used instead (not illustrat-ed). Guards should also be used over the belts and pulleys (not illustrated).
A pair of chopper blades 31 and 32 are secured to the spindle 24 substantially at right angles to one another and are rotated by the spindle and the blades are pitched as ~;are fan blades. It will also be noted that one blade 32 is ~ ;~
situated spaced above the lcwer blade 31.
The outer ends of the blades are twisted so that the leading edges 33 rotate in a plane above the trailing edges 34 so that when rotated in the direction of arrow 30, a downdraft is created which draws the straw, chaff and dust from the combine straw discharge, downwardly through the blades towards the base and then outwardly through the dis-charge 22 in a fan formation which extends through approxi-.
' ' .
- - . .
mately 160 rom one side to the rear of the machine, around the back, to the other side.
The r~tation of the blades not only chops the straw by means of the leading edges 3~, but also throws it or shears it against the vertical struts 21 ad the blades .
pass close to these struts as clearly illustrated in Figure 4.
This particular construction prevents straw b~ing thrown towards the combine or similar machine and underneath :.
same, but ensures that it is spread rean~ardly and sideways ;
in the aforementioned 160 fan.
It will be appreciated that the speed of rotation of the blades 31 and 32 is sufficient not only to;chop the ..
straw relatively finely, but also to expel same a sufficient :
distance, through the discharge 22, in order to spread same .
efficiently behind the combine. :
The pitch of the blades increases the capacity of the sieves and walkers. The vacuum created by the blades : `
with the help of an adjustable bridge plate 36 draws the . ~.
dust into the combine from the header as well as drawing the chaff from the sieves over thebri!dge into the chopper spreader. .~.
Thi~ bridge plate is hinged across the top forward edge of ;~
the casing lS and includes an upwardly extending portlon 36A
` ::
. :. . , : : : .... ~. . . .
315~
and a horizontal portion 36B angulate~ forwardly Erom the top edge of the portion 36A. Brackets 37 ~djustably secure the plate in the desired relationship with the sieves and straw walkers and extends into the area between the sieves and straw walkers thus con~rolling the vacuum and hence the discharge therefrom into the chopper and spreader.
The blades 31 and 32 are foldable or pivotable as shown at 35 to enable the device to handle the capacity of the machine.
Since various modifications can be made in my in vention as hereinabove described, and many apparently widely different embodiments of same made within the spirit and scope of the claims without departing from such spirit and scope, it is intended that all matter contained in the accom-panying specification shall be interpreted as illustrative only and not in a limiting sense.
..
:. , , . ~-:. ~ . -:: :
: . ~ . : . : :
"STR~W CHOPPER AND SPREADER"
BACK_OUND OF THE INVENTION
This invention relates to new and useful improvements in straw chopping and spreading devices, particularly straw chopping and spreading devices situated below the straw dis-charge of a threshing machine such as a combine or the like.
Conventionally, such devices consist of a horizontally situated or vertically situated blade rotating and through which the straw is passed and partially chopped. The speed of the blade partially assists in the spreading action, but such devices are inefficient and spread the straw through approximately 360 so that part of the straw is blown or thrown against the rear of the combine with most of the straw directly behind the combine.
SUMM~RY OF THE INVENTION
-The present invention overcomes these disadvantages by providing a straw chopper and spreader which is adapted to be secured to the combine immediately below the straw discharge means and one aspect of the invention consists of a straw chop-per and spreader for attachment below the straw and chaff dis-charge of a grain threshing machine such as a combine or the like and adapted to be dri~en by a source of power on the ma-chine; comprising in combination a substantially horizontally located casing securable to said machine below the straw and chaff discharge thereof, straw and chaff intake means in the upper side of the casing operatively connectable to the straw B :
- . . . . . . . .
discharge, rotatable straw chopping means journalled for rota-tion in said casing and chopped straw discharge means through at least part of the wall of said casing, said straw casing means being operatlvely connectable to the source of power on the associated machine, said straw discharge means extending around said wall from one side, around the rear of said wall to the other side through approximately 180.
The straw chopper also acts to stabilize the rear of the combine and uses considerably less horsepower than conven-tional choppers~ It increases the capacity of the sieves and straw walkers by extracting the straw and chaff, together with the dust, and is more compact and lightweight than most conven-tional choppers.
Another advantage of the present invention is that ~-lS the straw and chaff is pulled down into the casing and through the chopping blades by means of the outer ends of the choppers being angulated and acting as fan blades. This draft action also forces the chopped straw and chaff onto the base of the casing and then outwardly through the discharge which extends ~0 approximately 160 so that the chopped straw and chaff is spread outwardly in a fan formation. The folding blades enables the device to handle the capacity of -the machine.
Another advantage of the present invention is that E~
. . ~ . . : . ~, it is simple in construction, economical in manufac-ture and otherwise well suited to the purpose for which it is design-ed.
With the foregoing in view, and other advantates as will become apparent to those skilled in the art to which this invention relates as this specification proceeds, the invention is herein described by reference to the accompany- ~-ing drawings forming a part hereof, which includes a de-scription of the preferred typical embodiment of the princi-i0 ples of the present invention, in which:
Figure 1 is a front elevation of the aevice shown attached underneath the straw discharge of a machine such as !~
a combine or the like (not illustrated).
Figure 2 is a side view of the device per se.
"'~', Figure 3 is an underside plan view of the device per se.
: '', Figure 4 is a top plan view of the device.
, '~'` ~ , In the drawings like characters of reference indi- -cate corresponding parts in the different figures.
lQ~ 3~
DETAILED DESCRIPTION
Proceeding therefore to describe the invention in detail, reference should be made to the accompanying draw-ings in which the spreader and chopper collectively designat-ed 10, is secured immediately below the straw discharge 11 of a combine, part of which is illustrated by the reference character 12. Brackets 13 or any other convenient means may be provided to secure the device below the straw discharge 11 and the attachment means shown in the drawings are meant to be schematic only.
The device collectively designated 10 comprises a substantially square or rectangular casing frame collective-ly designated 15 which includes a planar, substantially rec-tangular upper panel 16, a planar lower panel 17 in spaced and parallel relationship with the other panel 16 and a vertically situated cylindrical partial wall collectively designated 18 and extending between the upper and lower panels. A circular .
opening 16A in the upper panel 16 acts as the intake and is of substantially the same size and configuration as the lower circular panel 17 situated immediately therebelow. :~
~::
A directional plate 19 may extend from the upper side of the casing to the top side of 18 to funnel the straw ; ~rom the combine to the device.
, ~ , , - , , ~ .
1~ 3~
Part of the upper panel 16 (a portion approximately the same size as the lower panel 17) is cut away as at 16A to act as the aforementioned straw intake (see Figure 4) and the perimetrical wall 18 extends through approximately 180 around the front and part of each side of the device as clearly shown in Figure 2.
Part of the cylindrical wall is opened to form a ~::
straw discharge and in the present device, this portion ex-tends through approximately 180, around the rear and one part side of the device~ -Vertical struts or bars 21 are provided in spaced :`
and parallel relationship around the open discharge area of .
the cylindrical partial wall, said open discharge area being indicated by reference character 22 in the~drawings. These ~ -struts 21 also act as supports between the upper and lower panels 16 and 17. `
, ` '.
Straw chopping means collectively designated 23 are provided within the casing and in this embodiment, take the form of a vertically situated spindle 24 journalled for rota-tion within a bearing 25 supported upon the base panel 17 with said spindle extending through to the underside of the base 17 . , and having a V-pulley 25A secured to and at the lower end ~
. ~ :
. . ~` ', 3~
thereof, a second bea~ing 25B is provided with supporting braces 25C as clearly shown in Figure 2.
A drive belt 26 extends around this pulley 25A and around idler pulleys 28 supported in brackets 29 attached to the underside of 16 or 15. These pulleys are operatively con-nected to the source of power within the machine (not illus-trated) and rotate the shaft 24 in ei~her direction depending upon which machine to which the device is attached. A 90 angle gear box and shaft could be used instead (not illustrat-ed). Guards should also be used over the belts and pulleys (not illustrated).
A pair of chopper blades 31 and 32 are secured to the spindle 24 substantially at right angles to one another and are rotated by the spindle and the blades are pitched as ~;are fan blades. It will also be noted that one blade 32 is ~ ;~
situated spaced above the lcwer blade 31.
The outer ends of the blades are twisted so that the leading edges 33 rotate in a plane above the trailing edges 34 so that when rotated in the direction of arrow 30, a downdraft is created which draws the straw, chaff and dust from the combine straw discharge, downwardly through the blades towards the base and then outwardly through the dis-charge 22 in a fan formation which extends through approxi-.
' ' .
- - . .
mately 160 rom one side to the rear of the machine, around the back, to the other side.
The r~tation of the blades not only chops the straw by means of the leading edges 3~, but also throws it or shears it against the vertical struts 21 ad the blades .
pass close to these struts as clearly illustrated in Figure 4.
This particular construction prevents straw b~ing thrown towards the combine or similar machine and underneath :.
same, but ensures that it is spread rean~ardly and sideways ;
in the aforementioned 160 fan.
It will be appreciated that the speed of rotation of the blades 31 and 32 is sufficient not only to;chop the ..
straw relatively finely, but also to expel same a sufficient :
distance, through the discharge 22, in order to spread same .
efficiently behind the combine. :
The pitch of the blades increases the capacity of the sieves and walkers. The vacuum created by the blades : `
with the help of an adjustable bridge plate 36 draws the . ~.
dust into the combine from the header as well as drawing the chaff from the sieves over thebri!dge into the chopper spreader. .~.
Thi~ bridge plate is hinged across the top forward edge of ;~
the casing lS and includes an upwardly extending portlon 36A
` ::
. :. . , : : : .... ~. . . .
315~
and a horizontal portion 36B angulate~ forwardly Erom the top edge of the portion 36A. Brackets 37 ~djustably secure the plate in the desired relationship with the sieves and straw walkers and extends into the area between the sieves and straw walkers thus con~rolling the vacuum and hence the discharge therefrom into the chopper and spreader.
The blades 31 and 32 are foldable or pivotable as shown at 35 to enable the device to handle the capacity of the machine.
Since various modifications can be made in my in vention as hereinabove described, and many apparently widely different embodiments of same made within the spirit and scope of the claims without departing from such spirit and scope, it is intended that all matter contained in the accom-panying specification shall be interpreted as illustrative only and not in a limiting sense.
..
:. , , . ~-:. ~ . -:: :
: . ~ . : . : :
Claims
WHAT I CLAIM AS MY INVENTION IS:
(1) A chopper and spreader for attachment below the straw and chaff discharge of a grain threshing machine such as a combine or the like and adapted to be driven by a source of power on the machine; comprising in combination a substantially horizontally located casing securable to said machine below the straw and chaff discharge thereof, straw and chaff intake means in the upper side of the casing oper-atively connectable to the straw discharge, rotatable straw chopping means journalled for rotation in said casing and chopped straw discharge means through at least part of the wall of said casing, said straw chopping means being opera-tively connectable to the source of power on the associated machine, said straw discharge means extending around said wall from one side, around the rear of said wall to the other side through approximately 180°.
(2) The invention according to Claim 1 in which said casing includes a planar circular base, a planar circu-lar upper side spaced and parallel to said base and an annu-lar wall therebetween, said straw intake means being formed through said upper side adjacent the front thereof.
(3) The invention according to Claim 1 in which said straw discharge means includes vertical support struts in spaced and parallel relationship extending between said upper side and said base, said vertical support struts also acting to assist in chopping said straw in conjunction with said straw chopping means.
(4) The invention according to Claim 2 in which said straw discharge means includes vertical support struts in spaced and parallel relationship extending between said upper side and said base, said vertical support struts also acting to assist in chopping said straw in conjunction with said straw chopping means.
(5) The invention according to Claim 1 in which said straw chopping means includes a vertical spindle journalled for rotation within said casing, at least one chopping blade assem-bly secured to said spindle and rotatable therewith, said blade assembly including a plurality of blades, said blades having edge sharpened leading edges, said leading edges lying in a plane above the trailing edges thereof to form chopping blades and fan blades to urge the straw and chaff downwardly in said casing, through said blades and outwardly through said chopped straw discharge means.
(6) The invention according to Claim 2 in which said straw chopping means includes a vertical spindle journal-led for rotation within said casing, at least one chopping blade assembly secured to said spindle and rotatable therewith, said blade assembly including a plurality of blades, said blades having edge sharpened leading edges, said leading edges lying in a plane above the trailing edges thereof to form chopping blades and fan blades to urge the straw and chaff downwardly in said casing, through said blades and out-wardly through said chopped straw discharge means.
(7) The invention according to Claim 3 in which said straw chopping means includes a vertical spindle journal-led for rotation within said casing, at least one chopping blade assembly secured to said spindle and rotatable therewith, said blade assembly including a plurality of blades, said blades having edge sharpened leading edges, said leading edges lying in a plane above the trailing edges thereof to form chopping blades and fan blades to urge the straw and chaff downwardly in said casing, through said blades and outwardly through said chopped straw discharge means.
(8) The invention according to Claim 4 in which said straw chopping means includes a vertical spindle journal-led for rotation within said casing, at least one chopping blade assembly secured to said spindle and rotatable therewith, said blade assembly including a plurality of blades, said blades having edge sharpened leading edges, said leading edges lying in a plane above the trailing edges thereof to form chopping blades and fan blades to urge the straw and chaff downwardly in said casing, through said blades and outwardly through said chopped straw discharge means.
(9) The invention according to Claims 5, 6 or 7 which includes a pair of chopping blades secured to said spindle one above the other and situated substantially at right angles to one another.
(10) The invention according to Claim 8 which in-cludes a pair of chopping blades secured to said spindle one above the other and situated substantially at right angles to one another.
(11) The invention according to Claims 1, 2 or 3 in which the associated grain threshing machine includes a straw walker assembly below said straw discharge and a sieve assembly below said straw walker assembly; and a transversely extending adjustable bridging plate extending from said casing and into the area between said straw walker assembly and said sieve as-sembly to control the discharge of chaff, dust and the like from said grain threshing machine into said straw chopper and spreader.
(12) The invention according to Claims 4, 5 or 6 in which the associated grain threshing machine includes a straw walker assembly below said straw discharge and a sieve assembly below said straw walker assembly; and a transversely extending adjustable bridging plate extending from said casing and into the area between said straw walker assembly and said sieve as-sembly to control the discharge of chaff, dust and the like from said grain threshing machine into said straw chopper and spreader.
(13) The invention according to Claims 7, 8 or 9 in which the associated grain threshing machine includes a straw walker assembly below said straw discharge and a sieve assem-bly below said straw walker assembly; and a transversely ex-tending adjustable bridging plate extending from said casing and into the area between said straw walker assembly and said sieve assembly to control the discharge of chaff, dust and the like from said grain threshing machine into said straw chopper and spreader.
(14) The invention according to Claim 10 in which the associated grain threshing machine includes a straw walker assembly below said straw discharge and a sieve assembly be-low said straw walker assembly; and a transversely extending adjustable bridging plate extending from said casing and into the area between said straw walker assembly and said sieve assembly to control the discharge of chaff, dust and the like from said grain threshing machine into said straw chopper and spreader.
(1) A chopper and spreader for attachment below the straw and chaff discharge of a grain threshing machine such as a combine or the like and adapted to be driven by a source of power on the machine; comprising in combination a substantially horizontally located casing securable to said machine below the straw and chaff discharge thereof, straw and chaff intake means in the upper side of the casing oper-atively connectable to the straw discharge, rotatable straw chopping means journalled for rotation in said casing and chopped straw discharge means through at least part of the wall of said casing, said straw chopping means being opera-tively connectable to the source of power on the associated machine, said straw discharge means extending around said wall from one side, around the rear of said wall to the other side through approximately 180°.
(2) The invention according to Claim 1 in which said casing includes a planar circular base, a planar circu-lar upper side spaced and parallel to said base and an annu-lar wall therebetween, said straw intake means being formed through said upper side adjacent the front thereof.
(3) The invention according to Claim 1 in which said straw discharge means includes vertical support struts in spaced and parallel relationship extending between said upper side and said base, said vertical support struts also acting to assist in chopping said straw in conjunction with said straw chopping means.
(4) The invention according to Claim 2 in which said straw discharge means includes vertical support struts in spaced and parallel relationship extending between said upper side and said base, said vertical support struts also acting to assist in chopping said straw in conjunction with said straw chopping means.
(5) The invention according to Claim 1 in which said straw chopping means includes a vertical spindle journalled for rotation within said casing, at least one chopping blade assem-bly secured to said spindle and rotatable therewith, said blade assembly including a plurality of blades, said blades having edge sharpened leading edges, said leading edges lying in a plane above the trailing edges thereof to form chopping blades and fan blades to urge the straw and chaff downwardly in said casing, through said blades and outwardly through said chopped straw discharge means.
(6) The invention according to Claim 2 in which said straw chopping means includes a vertical spindle journal-led for rotation within said casing, at least one chopping blade assembly secured to said spindle and rotatable therewith, said blade assembly including a plurality of blades, said blades having edge sharpened leading edges, said leading edges lying in a plane above the trailing edges thereof to form chopping blades and fan blades to urge the straw and chaff downwardly in said casing, through said blades and out-wardly through said chopped straw discharge means.
(7) The invention according to Claim 3 in which said straw chopping means includes a vertical spindle journal-led for rotation within said casing, at least one chopping blade assembly secured to said spindle and rotatable therewith, said blade assembly including a plurality of blades, said blades having edge sharpened leading edges, said leading edges lying in a plane above the trailing edges thereof to form chopping blades and fan blades to urge the straw and chaff downwardly in said casing, through said blades and outwardly through said chopped straw discharge means.
(8) The invention according to Claim 4 in which said straw chopping means includes a vertical spindle journal-led for rotation within said casing, at least one chopping blade assembly secured to said spindle and rotatable therewith, said blade assembly including a plurality of blades, said blades having edge sharpened leading edges, said leading edges lying in a plane above the trailing edges thereof to form chopping blades and fan blades to urge the straw and chaff downwardly in said casing, through said blades and outwardly through said chopped straw discharge means.
(9) The invention according to Claims 5, 6 or 7 which includes a pair of chopping blades secured to said spindle one above the other and situated substantially at right angles to one another.
(10) The invention according to Claim 8 which in-cludes a pair of chopping blades secured to said spindle one above the other and situated substantially at right angles to one another.
(11) The invention according to Claims 1, 2 or 3 in which the associated grain threshing machine includes a straw walker assembly below said straw discharge and a sieve assembly below said straw walker assembly; and a transversely extending adjustable bridging plate extending from said casing and into the area between said straw walker assembly and said sieve as-sembly to control the discharge of chaff, dust and the like from said grain threshing machine into said straw chopper and spreader.
(12) The invention according to Claims 4, 5 or 6 in which the associated grain threshing machine includes a straw walker assembly below said straw discharge and a sieve assembly below said straw walker assembly; and a transversely extending adjustable bridging plate extending from said casing and into the area between said straw walker assembly and said sieve as-sembly to control the discharge of chaff, dust and the like from said grain threshing machine into said straw chopper and spreader.
(13) The invention according to Claims 7, 8 or 9 in which the associated grain threshing machine includes a straw walker assembly below said straw discharge and a sieve assem-bly below said straw walker assembly; and a transversely ex-tending adjustable bridging plate extending from said casing and into the area between said straw walker assembly and said sieve assembly to control the discharge of chaff, dust and the like from said grain threshing machine into said straw chopper and spreader.
(14) The invention according to Claim 10 in which the associated grain threshing machine includes a straw walker assembly below said straw discharge and a sieve assembly be-low said straw walker assembly; and a transversely extending adjustable bridging plate extending from said casing and into the area between said straw walker assembly and said sieve assembly to control the discharge of chaff, dust and the like from said grain threshing machine into said straw chopper and spreader.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA308,581A CA1088838A (en) | 1978-08-02 | 1978-08-02 | Straw chopper and spreader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA308,581A CA1088838A (en) | 1978-08-02 | 1978-08-02 | Straw chopper and spreader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1088838A true CA1088838A (en) | 1980-11-04 |
Family
ID=4112041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA308,581A Expired CA1088838A (en) | 1978-08-02 | 1978-08-02 | Straw chopper and spreader |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1088838A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1219162A1 (en) * | 2000-12-20 | 2002-07-03 | Deere & Company | Combine with a chopping device |
-
1978
- 1978-08-02 CA CA308,581A patent/CA1088838A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1219162A1 (en) * | 2000-12-20 | 2002-07-03 | Deere & Company | Combine with a chopping device |
| US6688972B2 (en) | 2000-12-20 | 2004-02-10 | Deere & Company | Combine with chopper arrangement |
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