Abstract: A combine harvester where opposing concaves on either side of a rotor of a processing system substantially simultaneously travel symmetrical paths. The concaves of the processing system may be pivotally supported on a rockshaft where the axis of the rockshaft moves in a generally vertical manner so that the concaves then move generally radially toward or away from the rotor.

Abstract: A harvesting header having a flexible cutterbar assembly utilizes draper belts behind the cutterbar assembly to gently consolidate the severed crop materials and deliver them to a point of discharge and delivery, such as to the feederhouse of a combine harvester. One embodiment has draper assemblies and a central conveyor fixed relative to the flexible cutterbar assembly, while another has the draper assemblies and central conveyer flexible with the cutterbar assembly.

Abstract: A harvesting header having a flexible cutterbar assembly utilizes draper belts behind the cutterbar assembly to gently consolidate the severed crop materials and deliver them to a point of discharge and delivery, such as to the feederhouse of a combine harvester. The cutterbar assembly is supported by pivotable support arms such that it is operable to flex along the length thereof in response to changes in terrain as the header is advanced. One embodiment has draper assemblies and a central conveyor fixed relative to the flexible cutterbar assembly, while another has the draper assemblies and central conveyer flexible with the cutterbar assembly.

Abstract: A harvesting header having a flexible cutterbar assembly utilizes draper belts behind the cutterbar assembly to gently consolidate the severed crop materials and deliver them to a point of discharge and delivery, such as to the feederhouse of a combine harvester. One embodiment has draper assemblies and a central conveyor fixed relative to the flexible cutterbar assembly, while another has the draper assemblies and central conveyer flexible with the cutterbar assembly.

Abstract: A combine harvester where opposing concaves on either side of a rotor of a processing system substantially simultaneously travel symmetrical paths. The concaves of the processing system may be pivotally supported on a rockshaft where the axis of the rockshaft moves in a generally vertical manner so that the concaves then move generally radially toward or away from the rotor.

Abstract: A combine harvester where opposing concaves on either side of a rotor of a processing system substantially simultaneously travel symmetrical paths. The concaves of the processing system may be supported on a suspension system such that the concaves are pivotally supported from a common axial location at one end and translationally adjusted at another end to move the concaves generally radially toward or away from the rotor.

Abstract: A harvesting header having a flexible cutterbar assembly utilizes draper belts behind the cutterbar assembly to gently consolidate the severed crop materials and deliver them to a point of discharge and delivery, such as to the feederhouse of a combine harvester. The header includes laterally spaced support arms attached to and cooperatively supporting the flexible cutterbar assembly. The support arms are pivotally coupled to the frame for swinging movement about a laterally extending axis so that the cutterbar assembly is operable to flex along the length thereof in response to changes in terrain as the header is advanced.

Abstract: A harvesting header having a flexible cutterbar assembly utilizes draper belts behind the cutterbar assembly to gently consolidate the severed crop materials and deliver them to a point of discharge and delivery, such as to the feederhouse of a combine harvester. The header includes laterally spaced support arms. The support arms are attached to the flexible cutterbar assembly and pivotally supported adjacent rear ends thereof for swinging movement about a laterally extending axis.

Abstract: A harvesting header having a flexible cutterbar assembly utilizes draper belts behind the cutterbar assembly to gently consolidate the severed crop materials and deliver them to a point of discharge and delivery, such as to the feederhouse of a combine harvester. One embodiment has draper assemblies and a central conveyor fixed relative to the flexible cutterbar assembly, while another has the draper assemblies and central conveyer flexible with the cutterbar assembly.

Abstract: A harvesting header having a flexible cutterbar assembly utilizes draper belts behind the cutterbar assembly to gently consolidate the severed crop materials and deliver them to a point of discharge and delivery, such as to the feederhouse of a combine harvester. One embodiment has draper assemblies and a central conveyor fixed relative to the flexible cutterbar assembly, while another has the draper assemblies and central conveyer flexible with the cutterbar assembly.

Abstract: A harvesting header having a flexible cutterbar assembly utilizes draper belts behind the cutterbar assembly to gently consolidate the severed crop materials and deliver them to a point of discharge and delivery, such as to the feederhouse of a combine harvester. One embodiment has draper assemblies and a central conveyor fixed relative to the flexible cutterbar assembly, while another has the draper assemblies and central conveyer flexible with the cutterbar assembly.

Abstract: A counterbalancing epicyclic sickle drive has a pair of oppositely rotating weights that offset the inertial forces of the sickle during its abrupt acceleration and deceleration at opposite ends of its path of travel. One of the weights rotates with the main shaft of the drive about its longitudinal axis, while the second weight is fixed to an oppositely rotating crankshaft that orbits about the axis of the main shaft in eccentric relationship thereto. The weight on the main shaft is heavier than the weight on the crankshaft so as to offset changes in inertial forces produced by the crankshaft weight during increased acceleration of its center of gravity at opposite ends of its elliptical path of travel about the axis of the main shaft.