US4023335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rake machine
Assignee: Individual
•
Filing: 1974-10-11
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Granted: 1977-05-17
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Expires: 1994-10-11
Abstract
Abstract A raking machine that displaces crop lying on the ground has at least one, preferably two, raking members that rotate on upwardly extending axes. Each raking member has a felly-like or circular member around which tines or other crop gathering elements are displaceably mounted. The circular member can be a cylindrical or conical wall that is deformable or flexible during rotation so that tines secured by pivots or bolts near the bottom of the member can move in axial, radial or tangential directions responsive to ground undulations and/or control means, allowing crop to be deposited in a swath or at a predetermined point along the circumference of the raking member. The circular member can be foldable responsive to the control which can be driven along a track and unfolded to deposit crop as desired. Also, side-by-side raking members can have tines pivoted in assemblies in which crank arms are contacted by control means or elements on an adjacent rake wheel to turn the tines and deposit crop. Similarly, a magnet can be positioned near the felly like member to attract magnets on crank arms and pivot the tines to unload positions. A blower can be used as the control member or a roller support can be placed to distort wire spokes and tine strips, again unloading crop at a preselected site.
Inventors
- 👤 Cornelis van der Lely
- 👤 Ary van der Lely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:10
CPC Classifications
A; A01; A01D; A01D78/00; A01D78/08; A01D78/10; A01D78/1078
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
134 words
A machine for raking and displacing crop lying on the ground comprising a frame and at least one rake member supported by said frame, said rake member being rotatable about an upwardly extending axis and driving means connected to rotate said member, said member comprising a rotatable support with crop engaging means attached around the axis of rotation of said support, said crop engaging means being moved through a generally circular path during rotational operation of said member, said crop engaging means being displaceable and turnable on said support during rotation thereof, responsive to the influence of control means, said control means being fixed to said member adjacent and within the perimeter of said support and positioned to turn the crop engaging means sequentially and deposit crop therefrom during rotation of the rake member.
Claim 2
Dependent Claim
134 words
A machine for raking and displacing crop lying on the ground comprising a frame and at least one rake member supported by said frame, said rake member being rotatable about an upwardly extending axis and driving means connected to rotate said member, said member comprising a rotatable support with crop engaging means attached around the axis of rotation of said support, said crop engaging means being moved through a generally circular path during rotational operation of said member, said crop engaging means being displaceable and turnable on said support during rotation thereof, responsive to the influence of control means, said control means being fixed to said member adjacent and within the perimeter of said support and positioned to turn the crop engaging means sequentially and deposit crop therefrom during rotation of the rake member.
Claim 3
Dependent Claim
38 words
A machine as claimed in claim 1, wherein said crop engaging means comprises a magnetizable mass connected to at least one of said tines, a magnet being positioned adjacent said outer circumference to turn said mass and tine.
Claim 4
Dependent Claim
33 words
A machine as claimed in claim 1, wherein said crop engaging means includes tines secured to the lower portion of said wall and said tines are steered by the folding of the wall.
Claim 5
Dependent Claim
49 words
A machine as claimed in claim 1, wherein said support has an outer circumference defined by a flexible circular wall which is deflectable in at least one direction with respect to said axis of rotation, and said crop engaging means is fastened to the outer side of said wall.
Claim 6
Dependent Claim
22 words
A machine as claimed in claim 4, wherein said wall is pliable and comprised of flexible rubber, synthetic resin or canvas material.
Claim 7
Dependent Claim
16 words
A machine as claimed in claim 4, wherein said wall is deflectable in an axial direction.
Claim 8
Dependent Claim
16 words
A machine as claimed in claim 4, wherein said wall is deflectable in a radial direction.
Claim 9
Dependent Claim
16 words
A machine as claimed in claim 4, wherein said wall is deflectable in a tangential direction.
Claim 10
Dependent Claim
18 words
A machine as claimed in claim 4 wherein said crop-engaging means is comprised of tines arranged in groups.
Claim 11
Dependent Claim
39 words
A machine as claimed in claim 1, wherein the upper wall circumference, measured along the surface of the wall and parallel to a plane at right angles to said axis, is greater than the circumference of said raking member.
Claim 12
Dependent Claim
91 words
A machine as claimed in claim 1, wherein said crop engaging means are flexible strip-shaped tines and a steering member on the raking member is positioned to torsion the tines, said tines each being supported on said support and interconnected to a central portion of the rake member with flexible wire-shaped elements, said steering member comprising a roller on a rotary shaft that is fixed on the machine relative to said central portion and said roller being positioned to sequentially bear on said elements during every revolution of said raking member.
Claim 13
Dependent Claim
29 words
A machine as claimed in claim 1, wherein said raking member has a central portion and said driving device extends radially from said central portion to engage said links.
Claim 14
Dependent Claim
48 words
A machine as claimed in claim 12, wherein said guide means includes a wide portion and a narrow portion, said links having rollers that engage each said portion, whereby said links fold in the wide portion and stretch in said narrow portion during the rotation of said member.
Claim 15
Dependent Claim
49 words
A machine as claimed in claim 13, wherein the outer end of said driving device is a rotatable driving wheel that engages said links adjacent a junction of the wide and narrow portions, means for adjusting the location of said wheel and junction around the circumference of said member.
Claim 16
Dependent Claim
113 words
A machine for raking or displacing crop lying on the ground comprising a frame with guide means and at least one raking member supported by said frame rotatable about an upwardly extending axis, a driving device connected to rotate said member and said member having a crop engaging wall mounted on said guide means, said wall being generally circular and foldable, links mounted on said guide means, said links being engaged by the driving device and said links being driven around said guide means adjacent the circumference of the wall during operation, said device cooperating with the guide means to alternately stretch and fold said links and portions of said wall during operation.
Claim 17
Dependent Claim
113 words
A machine for raking or displacing crop lying on the ground comprising a frame with guide means and at least one raking member supported by said frame rotatable about an upwardly extending axis, a driving device connected to rotate said member and said member having a crop engaging wall mounted on said guide means, said wall being generally circular and foldable, links mounted on said guide means, said links being engaged by the driving device and said links being driven around said guide means adjacent the circumference of the wall during operation, said device cooperating with the guide means to alternately stretch and fold said links and portions of said wall during operation.
Claim 18
Dependent Claim
153 words
A machine for raking and displacing crop lying on the ground comprising a frame and a pair of rake members supported side-by-side on said frame, said rake members being totatable about an upwardly extending axes and driving means connected to rotate said members in relative opposite directions, said members each comprising a rotatable support with tines pivoted to that support, said tines having crop working portions and being pivotable about respective upwardly extending pivot axes positioned on said support around the axis of rotation thereof, control means on each of said members located adjacent the corresponding supports and said tines being pivoted to a displaced position sequentially by said control means during the rotation of said member, the tines of one rake member being pivoted by the control means on the other member and vice versa, whereby crop engaged by said members is deposited in a preselected location with respect to said circumference.
Claim 19
Dependent Claim
153 words
A machine for raking and displacing crop lying on the ground comprising a frame and a pair of rake members supported side-by-side on said frame, said rake members being totatable about an upwardly extending axes and driving means connected to rotate said members in relative opposite directions, said members each comprising a rotatable support with tines pivoted to that support, said tines having crop working portions and being pivotable about respective upwardly extending pivot axes positioned on said support around the axis of rotation thereof, control means on each of said members located adjacent the corresponding supports and said tines being pivoted to a displaced position sequentially by said control means during the rotation of said member, the tines of one rake member being pivoted by the control means on the other member and vice versa, whereby crop engaged by said members is deposited in a preselected location with respect to said circumference.
Claim 20
Dependent Claim
25 words
A machine as claimed in claim 16, wherein said control means includes elongated rods that extend radially from the support means of each raking member.
Claim 21
Dependent Claim
56 words
A machine as claimed in claim 17, wherein said tines are mounted in assemblies and the center of gravity of each tine assembly is located so that the crop working portions thereof extend outwardly by centrifugal force during rotation, said assemblies each being mounted on a pivotal shaft on the support of its corresponding raking member.
Claim 22
Dependent Claim
31 words
A machine as claimed in claim 18, wherein a stop on said support is associated with each assembly and the positions of their crop working portions are limited by the stops.
Claim 23
Dependent Claim
18 words
A machine as claimed in claim 19, wherein each stop is displaceable with respect to its corresponding support.
Claim 24
Dependent Claim
31 words
A machine as claimed in claim 20, wherein each tine assembly includes at least one tine mounted on a crank arm which turns on a corresponding pivotal shaft on said support.
Claim 25
Dependent Claim
29 words
A machine as claimed in claim 21, wherein said assemblies of one member each comprise a contact surface that engages the control means of the other member during rotation.
Claim 26
Dependent Claim
57 words
A machine as claimed in claim 22, wherein the distance between the contact surfaces of said assemblies of one raking member and the axis of rotation of the other rake member is greater than the distance between the contact surfaces of the assemblies of said one member and the corresponding axis of rotation of said one member.
Claim 27
Dependent Claim
29 words
A machine as claimed in claim 23, wherein said tines are mounted in units on corresponding pivotal shafts that are journalled in respective sleeves held by a corresponding support.
Claim 28
Dependent Claim
29 words
A machine as claimed in claim 24, wherein said tine units are located below said support and said contact surfaces and respective crank arms are located above said support.
Claim 29
Dependent Claim
48 words
A machine as claimed in claim 18, wherein the working portions are generally inclined in a radial direction and away from their corresponding pivotal shafts to the front with respect to the normal direction of rotation of said raking members and at least in the crop engaging region.
Claim 30
Dependent Claim
143 words
A machine for raking or displacing crop lying on the ground comprising a frame and at least one raking member supported by said frame and rotatable about an upwardly extending axis, said raking member having an outer circumference and crop engaging tines located adjacent said circumference, ejecting means located adjacent said circumference to remove crop engaged by said tines in a direction outwardly with respect to the axis of rotation of said raking member, said raking member being driven about an upwardly extending shaft by driving means engaging said raking member, said ejecting means comprising a blower mounted on the raking member within said circumference and said blower having an outlet positioned to direct an air stream outwardly from the axis of rotation of said raking member, means adjusting said outlet around said axis of rotation to discharge crop at a preselected sector.
Claim 31
Dependent Claim
143 words
A machine for raking or displacing crop lying on the ground comprising a frame and at least one raking member supported by said frame and rotatable about an upwardly extending axis, said raking member having an outer circumference and crop engaging tines located adjacent said circumference, ejecting means located adjacent said circumference to remove crop engaged by said tines in a direction outwardly with respect to the axis of rotation of said raking member, said raking member being driven about an upwardly extending shaft by driving means engaging said raking member, said ejecting means comprising a blower mounted on the raking member within said circumference and said blower having an outlet positioned to direct an air stream outwardly from the axis of rotation of said raking member, means adjusting said outlet around said axis of rotation to discharge crop at a preselected sector.
Claim 32
Dependent Claim
24 words
A machine as claimed in claim 27, wherein said blower comprises a fan mounted on said shaft and a housing that surrounds said shaft.
Claim 33
Dependent Claim
26 words
A machine as claimed in claim 28, wherein said fan can be driven to rotate at a speed faster than the rotational speed of said shaft.
Claim 34
Dependent Claim
34 words
A machine as claimed in claim 29, wherein said outlet is at the end of a channel of said housing and valve means mounted in said channel controls the volume of air discharge therefrom.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-16 | 1980-11-15 | 1981-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-16 | 1984-11-15 | 1985-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-16 | 1988-11-15 | 1989-05-17 | $7700.00 | Window Closed / Lapsed |