Abstract: A combine harvester including a crop elevator, a threshing mechanism to which in use the crop elevator feeds crop material, and a removable stone trap located between the crop elevator and the threshing mechanism and having an inlet disposed generally at the transition between the crop elevator and the threshing mechanism is disclosed wherein the stone trap is supported in the operative position by a first releasable pivot and is retained in the operative position by a latch, the arrangement being such that on release of the latch the stone trap pivots forwardly of the machine about the first pivot while still being supported by the first pivot, the latter being disengaged on final removal of the stone trap from the machine.

Abstract: In a roll baling machine having a bale forming apron defining an expandable bale chamber, guide members extending into the bale chamber to support the apron and thereby define an initial shape for the bale chamber, the guide members being movable out of the bale chamber during bale formation without being opposed by springs which exert force to urge the guide members back into the bale chamber only after a bale that is being discharged from the machine has cleared the guide members.