Machine for spreading, turning and gathering of hay, straw and similar material

A machine for spreading, turning and raking together straw crops, such as hay, straw and similar materials, comprising means for cooperatively connecting the machine to a three point suspension hitch on an agricultural tractor, at least a first rotor and a second rotor each having an axle of rotation which may rotate in concurrent or non-concurrent direction, which rotors are provided with a number of rake arms extending radially from the axles of the rotors, which rake arms along a part of their free length carry parallel rods that extend away from the longitudinal axis of the rake arms and form rake teeth, and which rake arms at their radially inwards ends are provided with rollers interacting with circumferentiaI grooves in first and second guide devices connected to the axles of said first and second rotors respectively, which grooves follow a sequence by which the rods are moved from a first position parallel to said axles to a second position in which the rods are tilted downwards an rearwards in relation to the rotational direction of the rotors during part of the rotation, and back to the said first position during the remaining part of the rotation of the rotors whereby the straw crops may be caught by the rods in said first position and deposited to the side of the rotors during said second position, adjustable means that permit either limited sideways movement of the machine in relation to the three point suspension hitch of the tractor or to lock the machine against sideways movement as well as in the vertical direction, a first power device and a second power device controllable from the tractor, a telescoping main arm which carries at the right end thereof as seen in the direction of travel of the tractor and machine said first rotor and at the left end thereof said second rotor, which arm is lockable in two positions of which in the first position the longitudinal direction of the arm is transverse to the machine's direction of travel, and in the second position is at an angle thereto, such that the second rotor is placed further to the rear in relation to the first rotor, said second power device being adapted to longitudinally adjust the length of said telescoping main arm to vary the distance between said rotors and said first power device being adapted to pivotally adjust the main arm that carries said rotors on either end relative to the machine so that the axles of the rotors are either substantially vertical or are tiled downwards and rearwards in relation to the direction of said travel, and wherein said first guide device of the first rotor is lockable at a first or a second position depending on said first or second position of the main arm and said second guide device of the second rotor is lockable in a first, a second or a third position, in which the first and the second positions of the second guide device correspond to the first and second positions of the first guide device, the rollers of the rake arms of the second rotor being adjustable between one position where they are turned one way in the groove in relation to the direction of rotation of the second rotor when the second guide device is in said first or second positions, and a second position whereby they are turned in the opposite way when the second guide device is in said third position.