Abstract: A straw spreader for the rear straw discharge of a combine comprises a frame mounted on ground wheels together with a pair of hitch arms which extend forwardly from the frame on either side of the rear portion of the combine for attachment to the combine frame structure. The separate frame can thus move up and down relative to the rear of the combine and maintains a pair of spreader spinners on the frame at a predetermined height relative to the ground. Guide surfaces collect the material from the chopper at the rear of the combine and direct it onto the spinners for a spreading action. The low height of the spreading action reduces dust emission and enhances spreading consistency. An accumulator can be provided between the spreader and the discharge in the rear of the combine to allow the amount of straw spread to be varied relative to the amount collected at any particular point on the field.

Abstract: A chaff spreader for attachment to a combine includes a pair of spaced circular mounting rings, each having a fan rotatably mounted therein. An elongated drive shaft extends between the fans and is connected to a belt and pulled drive system for rotating the fans. A semi-cylindrical shroud is secured between the mounting rings and partially surrounds the fans. An open side wall portion of the shroud is directed forwardly toward the sieve of the combine for inducting chaff through the fans and laterally outwardly from the combine. The belt and pulley drive system is connected to a pulley on a straw chopper section of the combine. In a second embodiment, a generator driven light is mounted on the combine, adjacent the fans to serve as a warning to indicate fan rotation. The shaft spreader collects chaff through a suction effect created by the fans and spreads chaff evenly across the width of the cut, eliminating the toxic effect to seedlings growing through a concentration of chaff residue.

Abstract: A device for combine harvesters (11) equipped with impact straw cutters (16) of the kind equipped with a cleaning device (13) for separation of chaff from the grain and which rotary chopper is connected to the straw outlet (17) of the combine harvester, whereby the chaff coming from the cleaning device (13) and being transported by a flow of air is intended to be supplied to the rotary chopper (16). The rotary chopper is connected to the straw outlet (17) of the combine harvester. The purpose of the invention is to provide a device by which the chaff is spread over the entire harvesting breadth of the combine harvester and is also efficiently admixed with the comminuted straw such that a continuous and even distribution can be obtained on the field.

Abstract: A straw chopper and spreader assembly for receiving straw from a threshing machine, has a casing enclosing a pair of contra-rotatable flail assemblies. The flails are mounted in different horizontal planes and have blades which overlap so as to shear and chop the straw. At the rear of the casing is a rear outlet defined between a rear skirt and a bottom extension of the casing. The rear skirt is adjustble so as to enlarge or reduce the size of the rear outlet. In addition to discharge through the rear outlet, chopped straw is also discharged laterally through side chutes which have removable end portions so that discharge selectively may be outwardly and upwardly or outwardly and downwardly. Chaff spreading discs are mounted below the assembly and rotates horizontally.