Abstract: A folding mop frame has a pair of lateral outer sections pivoted on a central section of the frame and resiliently engagable by that central section to hold them extended with all the sections co-planar. On the upper faces of the lateral sections, near their outer ends, are S-form resilient hangers which grip the ends of a mop head extending around the ends of the frame and over its bottom face. Simply by applying a downwards force to the outer sections, they can be released from their engagement with the center section and swing downwards to leave the mop head hanging loosely, in which state it can easily be wrung out. Because of the resilient nature of the S-form hangers, they can ensure the mop head is held taut across the bottom of the frame independently of any shrinkage of the mop head material due to wetting.

Abstract: A mop-wringing device has a main frame with a fixed lower support plate and a displaceable upper pressure plate. A toggle link mechanism pivots the pressure plate downwards about a rear edge pivot connection to squeeze water from a mop head placed between the two plates. The mechanism comprises a torque bar mounted below the support plate and C-form lever arms secured at one end to the bar and connected at the other end to the pressure plate through toggle links. The arrangement allows a wide opening of the plates and a high wringing pressure on the mop head. The pivot connection of the pressure plate comprises upwardly elongate slots for end pivot pins, whereby the pressure plate can tilt to a limited degree to adapt to the thickness of the mop head.