(under subclass 43) Machines of the type wherein pumping means of the mechanical- type is employed to effect flow of liquid in a definite direction or directions through the textiles being treated.
(1) Note. The pump may be incorporated with the squeezer element (as a valved pounder), or be a pump structure operating coordinately with the movements of the squeezer element or be a pump driven by a separate motor means; and the pump may be of the valved type to produce a flow of liquid in one direction only or of the surge-type to produce currents in alternately opposite directions. Pounders, however are not regarded as pumps unless they are valved or operate in pump cylinders.
