Baler with adjustable feed device

A baler operable to bale agricultural crop material, comprising:

• a baling chamber (1),
• a baling plunger reciprocatable in said baling chamber,
• means operable to reciprocate said baling plunger (2) including a crank mechanism (3) and
• a feed device for conveying feed material to be baled to said baling chamber (1) including a rotary conveyor arranged below said baling chamber (1) and connected in driven relation to said crank mechanism (3), said rotary conveyor conveying said feed material synchronously with the movement of said baling plunger (2), said rotary conveyor including
• a feed channel (5),
• a cam-track (18) and
• a cam-track-guided conveying means having a plurality of conveyor rakes (6) guided by said cam-track,
• said cam-track being connected in driven relation to said crank mechanism (3) by a motion transmitting apparatus including an adjustable length motion transmitting element, said conveyor rakes (6) having tips which, during operation of said baler, define a conveying curve (27, 28),
• the position of said conveying curve (27, 28) being changed by adjustment of said motion transmitting element.