being driven by power units such as tractors the bale forming apparatus shown on fig1 fig2 fig3 and fig4 comprise the bale forming chamber 1 and the feeder compactor mechanism 2 the bale forming chamber is confined by four side walls 3 one closed end 4 and one open intake port 5 which is its bottom boundary for illustration purposes one hydraulic cylinder 6 is shown on fig1 which is used to cause the pendulum like reversing oscillating swinging motion of the bale forming chamber about its pivotal axis 7 on the structural frame 8 of the apparatus during the bale forming process the same cylinder 6 may be used to move the bale forming chamber to its discharge position as shown on fig5 the journally supported feeder compactor roller assemblies 9 are mounted on a common frame 11 which is securely attached to the structural frame 8 of the apparatus holding the feeder compactor rollers parallel to each other and perpendicular to the direction of the reversing oscillating motion of the bale forming chamber 1 the feeder opening 10 is confined by the adjacent boundaries of the feeder compactor roller assemblies 9 the feeder compactor mechanism is positioned relative to the bale forming chamber 1 to allow the transfer of the loose fibrous material each of the.