According to an example aspect of the present invention, there is provided A gripper comprising a body (1), the body (1) comprising an attachment (12) to a holding body. There is provided a first gripping jaw (2) extending from the body (1) and comprising a concave groove having has two longitudinal opposite edges (4, 5); at least one second gripping jaw (7) having a second concave groove with two longitudinal edges, at least one longitudinal edge of the second longitudinal groove being attached to one edge (5) of the first longitudinal groove either pivotably or detachably; and at least one closing element (10, 11) for pressing the second gripping jaw (7) towards the first gripping jaw (2).

A transportation dolly can have a frame, two axles pivotally coupled with the frame, each axle having two distal ends and a wheel assembly coupled at each distal end and a synchronous steering system. The synchronous steering system can include an intermediate link pivotally coupled with the frame, the intermediate link having a two distal ends, and a first push-pull rod coupling one of the two axles with the intermediate link, and a second push-pull rod coupling the other of the two axles with the intermediate link. The first push-pull rod is coupled to one distal end of the intermediate link and the second push-pull rod is coupled to the opposing distal end of the intermediate link. The first push-pull rod, the second push-pull rod, and the intermediate link provide counter phase synchronous pivoting of the two axles relative to the transportation dolly.

A multi-configuration apparatus includes a first frame assembly positionable in a first plane and wheels secured thereto such that it is moveable along a surface, a second frame assembly moveably secured to the first frame assembly, and a third frame assembly detachably secured to the second frame assembly. The second frame assembly is moveable between at least a first configuration to move the third frame assembly into a substantially coplanar relationship with the first plane, and a second configuration to move the third frame assembly in a raised configuration relative to the first frame assembly and in a second plane that is substantially parallel to the first plane. The apparatus further includes a support secured to the third frame assembly and wheels such that the third frame assembly is moveable along a surface when the third frame assembly is detached from the second frame assembly.

Examples provides one or more rolling pallet trays capable of interlocking together to form a modular rolling platform. A rolling pallet tray includes a rectangular base member with a top surface, a bottom surface, and a set of four sides. The top surface may have a lip extending upward along at least a portion of the circumference of the top surface. A set of rollers are pivotally mounted to the bottom surface. A floor-lock brake may be activated to stop movement of at least one roller to lock the rolling pallet tray in place. A set of linking mechanisms is attached to one or more of the sides for linking the individual rolling pallet tray to one or more other rolling pallet trays in a variety of different configurations. The linked rolling pallet trays in the modular rolling pallet tray pivot together as a single unit for greater stability.

In one example, a mother cart is provided that is suitable for transporting a daughter cart. The mother cart includes a base frame having a group of wheels configured to allow the mother cart to be moved. The base frame, in turn, includes a loading bay for receiving the daughter cart, and a support surface for supporting the daughter cart. Finally, the base frame includes a primary restraint mechanism for engaging and securing the daughter cart in the loading bay.

A method and apparatus for assisting in removing a wheels-on-ground type daughter cart from a mother cart, and a mother cart incorporating such a method and apparatus, utilize a daughter cart ejector apparatus mounted on a mother cart and having a selectively actuatable ejector element for urging the daughter cart to move out of engagement with the mother cart in an unloading direction. The ejector element is configured and operatively connected to bear against the daughter cart and apply force in a manner that assists in initiating movement of the daughter cart in the unloading direction and reorienting casters supporting the daughter cart on an underlying surface from a rolling orientation that is generally parallel to a transport direction of the mother cart, to a rolling orientation that is generally transverse to the transport direction and parallel to the unloading direction.

A floor cleaning system having a flat headed mop is provided. The system includes a bucket having a plurality of compartments. At least one compartment is provided for cleaning the flat headed mop to remove dirt and debris accumulated during use. A second compartment is provided for recharging the mop pad with water or a cleaning solution. At least one wringing device is operably coupled to one of the plurality of compartments. The at least one wringing device having an extractor element to remove at least a portion of water or cleaning solution from the mop pad.

A bucket for a floor cleaning system having a mop is provided. The bucket includes a first compartment, a second compartment, a fluid reservoir and a wringing assembly. The second compartment includes a recharging element, the recharging element being adapted to transfer fluid from the second compartment to the flat headed mop when the mop is positioned on a surface. The fluid reservoir is fluidly coupled to the second compartment. The wringing assembly is operably coupled to at least one of the first compartment or the second compartment, the wringing assembly having an extractor that removes fluid from the flat headed mop when the mop is moved through the wringing assembly.

A floor cleaning system having a flat headed mop is provided. The system includes a bucket having a plurality of compartments. At least one compartment is provided for cleaning the flat headed mop to remove dirt and debris accumulated during use. A second compartment is provided for recharging the mop pad with fluid. At least one wringer device is operably coupled to one of the plurality of compartments. The at least one wringer device having an extractor element to remove at least a portion of fluid from the mop pad.

A floor cleaning system and a method of cleaning a floor are provided. The cleaning system includes a flat headed mop. The system also includes a frame and at least one compartment removably coupled to the frame. A wringing assembly is fluidly coupled to the at least one compartment, the wringing assembly comprising a fixed extractor element and at least one roller movable from a first position when the mop head is being inserted to a second position when the mop head is being withdrawn.