Concaves for an agricultural combine
First Claim
1. A concave for an agricultural combine comprising threshing bars carried by a base frame and forming openings therebetween for grain to pass through, each said threshing bar includes a first end, a second end, a length from the first end to the second end, and an inner extremity, a deflecting extremity, including a deflecting surface, and a separating grate each extending along the length from the first end to the second end, the separating grate is between the inner extremity and the deflecting extremity and extends across an adjacent one of the openings between the inner extremity and the deflecting extremity for separating grain from threshed crop material, the deflecting surface projects angularly upward relative to the separating grate and is unbroken along the length from the first end to the second end, and the deflecting surface and the separating grate are arranged at an obtuse angle therebetween forming a grain-collecting trough between the deflecting surface and the separating grate.
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Accused Products
Abstract
A concave for an agricultural combine includes threshing bars carried by a base frame and forming openings therebetween for grain to pass through. Each threshing bar includes an inner extremity, a deflecting extremity including a deflecting surface, a separating grate between the inner extremity and the deflecting extremity, the separating grate extends across an adjacent one of the openings between the inner extremity and the deflecting extremity for separating grain from threshed crop material, the deflecting surface projects angularly upward relative to the separating grate, and the deflecting surface and the separating grate are arranged at an obtuse angle therebetween forming a grain-collecting trough between the deflecting surface and the separating grate.
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Citations
30 Claims
- 1. A concave for an agricultural combine comprising threshing bars carried by a base frame and forming openings therebetween for grain to pass through, each said threshing bar includes a first end, a second end, a length from the first end to the second end, and an inner extremity, a deflecting extremity, including a deflecting surface, and a separating grate each extending along the length from the first end to the second end, the separating grate is between the inner extremity and the deflecting extremity and extends across an adjacent one of the openings between the inner extremity and the deflecting extremity for separating grain from threshed crop material, the deflecting surface projects angularly upward relative to the separating grate and is unbroken along the length from the first end to the second end, and the deflecting surface and the separating grate are arranged at an obtuse angle therebetween forming a grain-collecting trough between the deflecting surface and the separating grate.
- 14. A concave for an agricultural combine comprising threshing bars carried by a base frame and forming openings therebetween for grain to pass through, each said threshing bar includes a first end, a second end, a length from the first end to the second end, and an inner extremity, a deflecting extremity including a deflecting surface, and a plurality of separating grates each extending along the length from the first end to the second end, the plurality of separating grates extends across an adjacent one of the openings between the inner extremity and the deflecting extremity for separating grain from threshed crop material and includes a first separating grate and a second separating grate, the first separating grate is between the inner extremity and the second separating grate, the second separating grate is between the first separating grate and the deflecting extremity, the second separating grate projects angularly upward relative to the first separating grate, the deflecting surface projects angularly upward relative to the second separating grate and is unbroken along the length from the first end to the second end, the second separating grate and the first separating grate are arranged at a first obtuse angle therebetween forming a first grain-collecting trough between the first separating grate and the second separating grate, the deflecting surface and the second separating grate are arranged at a second obtuse angle therebetween forming a second grain-collecting trough between the deflecting surface and the second separating grate.
Specification