Abstract: An auxiliary instrument panel for cabs of machines, particularly agricultural machines, comprises a panel containing control instruments, and a tubular support arm for the panel. The support arm is essentially L-shaped and has a first protion intended to be supported in a vertical position by the structure of the cab so as to be rotatable about its own axis, and a second portion which supports the panel for rotation about the axis of the second portion.

Abstract: An axial-flow thresher-separator unit for combine harvesters comprises at least one elongate member for cleaning the outer surface of the separator casing which extends parallel to the axis of the thresher-separator cylinder and is movable on the outer surface of the separator casing. The elongate member is connected to a pair of chains driven by gears. Means are arranged to transmit an alternating rotary movement to the gears. Each chain is an open loop and is guided within a double rail constituted by two parallel strips located above and beneath the pins of the chain. The longitudinal edges of each strip slidably engage the facing surfaces of the two plates constituting each inner link of the chain.

Abstract: In a combine harvester of the axial-flow type provided with a roller for accelerating the fall of the produce onto the cleaning unit, deflectors are provided for deflecting the accelerated flow of produce towards the higher side of the machine when the latter is tilted sideways.

Abstract: A combine harvester is provided with an orientable tube for discharging grain from its tank and a hydraulic jack for moving the orientable discharge tube between its extended position in which it projects from the combine harvester, and its retracted position in which the orientable discharge tube is housed within the space occupied by the combine harvester. The latter is further provided with catch means which are snap-engaged by the discharge tube when it is brought into its retracted position so that the discharge tube remains locked in this retracted position, and hydraulically controlled actuator means for releasing the catch means when the hydraulic jack moves the discharge tube towards the extended position.

Abstract: The thresher-separator unit has a cutter unit at its discharge end including a cutter member carried at the discharge end of the thresher-separator cylinder and provided with at least one radial bracket with a series of blade sections. The cutter unit further includes a casing which surrounds the upper part of the cutter member and is provided internally with at least one series of fixed blade sections located in alternating positions with respect to the blade sections of the cutter member and arranged to cooperate therewith to cut the straw leaving the thresher-separator unit. This unit further includes a spreading reel located below the cutter member and rotatable about a vertical axis to spread the cut straw uniformly on the ground. A bladed roller between the cutter member and the spreading reel is rotatable about an axis parallel to the axis of the thresher-separator cylinder and is arranged to prevent the stoppage of the flow of material and facilitate its discharge from the cutter unit.

Abstract: A combine harvester includes a threshing unit, a pair of transverse contra-rotating distributor augers located downstream of the threshing unit with respect to the direction of flow of the product and arranged to receive the product leaving the threshing unit and discharge it downwardly for distribution over the entire width of the harvester an accelerator roller located below the two distributor augers for accelerating the fall of the product, a substantially vertical fixed wall adjacent the accelerator roller and cooperating therewith to accelerate the product, and a cleaning unit located below the accelerator roller and including at least one fan for directing a current of air at the product accelerated by the accelerator roller. The substantially vertical wall adjacent the accelerator roller has a rough hull surface.

Abstract: A combine harvester in which an axial-flow threshing and separating unit is carried transversely of the harvester by a support structure which is fixed releasably to the cutting table of the harvester. This construction enables the combine harvester to be dismantled into three main units--the cutting table, the threshing and separating unit with its support structure, and a rear part of the harvester--so as to simplify considerably the assembly, disassembly and transportation of the harvester.

Abstract: A support assembly is provided for a castor wheel of an agricultural machine. This support assembly includes an arm rigid with the chassis of the machine and a wheel support member which is supported by the arm for rotation about a vertical axis. In order to facilitate steering of the machine when traversing across the line of maximum gradient on sloping ground, the wheel support assembly is provided with remotely controllable locking means for preventing rotation of the wheel support member, and thus of the castor wheel, about the said vertical axis. The locking means can take the form of a disk fast for rotation with the wheel support member and provided with a notch in its periphery, and a roller displaceable between a working position in which it engages in the notch to lock the wheel support member against rotation, and a rest position in which the roller is out of engagement with the disk.

Abstract: A combine harvester comprises an axial-flow threshing and separating unit which includes a threshing and separating cylinder disposed with its axis lying in a longitudinal vertical plane. The combine harvester is provided with means for feeding the harvested crop tangentially to the said axial-flow threshing and separating unit.

Abstract: A machine for cutting and conditioning forage comprises a main frame having, pivotally connected thereto, a cutter platform carrying a cutter bar and two counter-rotating transverse rolls for crushing the forage cut by the cutter bar; the cutter platform is attached at each side to the main frame by an upper side arm and a lower side arm the latter being a hydraulic actuator, the arrangement being such that when the hydraulic actuators are extended from the fully retracted position the upper side arms first turn about their pivots, allowing preliminary forward movement of the cutter platform with respect to the main frame, before they meet respective abutments which prevent further movement, whereupon the cutter platform turns about the pivots fixing it to the upper side arms and is raised from the ground.

Abstract: Device for regulating the height of the cutter platform of a combine harvester by its automatic return to an adjustable, predetermined height after lowering by a jack includes a rod which slides freely downwards causing an abutment surface to compress a spring which reacts through a double arm lever to reset a distributor valve, causing the jack to raise the platform.