Abstract: In a fodder harvesting machine, the device disclosed comprises a rotating chopping drum (1) and a fixed counter-knife (25) cooperating with the knives (2) of the drum (1), as well as a retractable wheel (21) adapted to be moved in rotation in order periodically to sharpen the knives (2). According to the invention, at least two positioners (5, 6, 7, 8) located near the free ends of the chopping drum (1) are mounted to pivot about the geometrical axis thereof and connected to an actuation device (a) bringing, by pivoting, the end contact piece (8) of each positioner (7) either opposite the wheel (21), or opposite a corresponding stop (32) of the counter-knife (25) which is fastened to a fixed support (3, 35) via a presser device (34) and a fixing device (33).

Abstract: An apparatus is provided for regulating the density of parallelepipedic bales of fodder produced in a bale press. The apparatus includes a compression canal formed by side walls in which a main plunger is driven in reciprocating motion by a power transmission device. The side walls of the canal include at least one pivoting shutter plate controlled by a fluid cylinder. The bale press includes a device for detecting the compression force applied by the plunger on a fodder charge present in the compression canal.

Abstract: A device for grouping parallelepipedic bales of fodder produced by a bale press, comprising a chassis having a forward and rear end, adapted to be drawn by the bale press, supported on at least two wheels and provided with a drawbar on the forward end thereof, wherein the chassis includes a first, upper and a second, lower pair of retractable lateral slides, the first, upper pair of said slides being placed at a level substantially corresponding to the level of the output plane of the bale press, and the second, lower pair of said slides being placed below the first, upper pair of slides at a distance therefrom approximately corresponding to the thickness of a bale, so as to define an inner space in said chassis.