storage chamber portion containing the major portion of the fabric to be processed comprises a tubular portion capable of rotation about its longitudinal axis and having means for producing the longitudinal feed of the fabric rope a low bath ratio between the processing bath and fabric being obtained application_number US 2950479 A description the apparatus of fig1 comprises a conventional closed vessel 1 adapted for working under pressure or in open bath comprising a centre tubular portion 2 forming the storage chamber for the fabric rope 3 attached to said centre portion 2 there are a terminal tapered portion 4 through which the fabric 3 is delivered to the portion 2 and an exit elbow portion 5 curved upwardly and attached in turn to an upper portion 6 provided with a loading and unloading cover 7 the fabric rope 3 moves relatively slowly through the storage chamber the upper portion 6 and the terminal tapered portion 4 are in communication with one another by way of a transport conduit 8 through which the fabric rope is propelled relatively rapidly the conduit 8 extends below the storage chamber and within the upper portion 6 it forms a mouth 9 forming together with a chamber 10 a hydraulic arrangement for propelling the fabric by overflow on the other hand the said transport conduit 8 is provided at a point outside the upper portion 6 with an annular jet chamber 11 which constitutes a hydraulic device for propelling the fabric by jetting both chambers 10 and 11 are in communication through respective control valves 12 and 13 with the processing.