Improvements for folding an agricultural machine

An agricultural machine configured to be drawn over a soil surface in a field or from place to place by a prime mover, the machine comprising:

• a frame or chassis carrying machinery support frames that are used to support selected agricultural equipment;
• and
• a raised primary beam extending from a hitching point to which the prime mover is reversibly connected by a pivoted connection, to a rear trailer, the primary beam defining a median line of symmetry for the frame or chassis,
• wherein the frame or chassis includes four beams connect together by four joints, each of the joints being pivotable about a separate vertical axis of rotation,
• wherein the beams of the frame or chassis include a first secondary beam and a second secondary beam pivotally connected to each other and to the primary beam at a first one of the joints at a first end of each of the first secondary beam and second secondary beam,
• the first secondary beam is pivotally connected at a second end by a second one of the joints along a first tertiary beam,
• the second secondary beam is pivotally connected at a second end by the third one of the joints along a second tertiary beam,
• a first end of the first tertiary beam is connected at a fourth one of the joints to a first end of the second tertiary beam,
• the first tertiary beam is extended beyond the second joint along the entire length of a first machinery support frame and the second tertiary beam being extended beyond the third joint along the entire length of a second machinery support frame, and
• the agricultural equipment is pivotally connected to the first machinery support frame and to the second machinery support frame.