Wringing device

A method for wringing fluids from a flexible container positioned within a rigid structure using a wringing device assembly comprising a wringing device and a transport system for transporting the wringing device, the wringing device comprising a support frame having a pair of spaced apart side supports, at least one rotatable take-up shaft extending between the pair of spaced apart side supports, and a carriage coupled to the support frame, with the carriage being movable in a generally vertical direction relative to the support frame, the carriage comprising a pair of spaced apart side members, a first nip shaft extending between the pair of spaced apart side members, a second nip shaft adjacent the first nip shaft and also extending between the pair of spaced apart side members, the method comprising:

• using the transport system for positioning the wringing device over the rigid structure;
• moving the second nip shaft away from the first nip shaft;
• passing the flexible container between the first and second nip shafts;
• securing the flexible container to the at least one rotatable take-up shaft;
• moving the second nip shaft toward the first nip shaft;
• and
• rotating the at least one rotatable take-up shaft for wrapping the flexible container therearound after having passed between the first and second nip shafts so that the fluids are wringed out of the flexible container through at least one opening therein.