Abstract: A lock-nut wrench has an elongated handle and a head at one or both ends of the handle. The head or heads have right and left arcuate jaws with distal ends that define a gap and each jaw has a first radially inwardly directed tooth at its distal end and a second radially inwardly directed tooth spaced proximally from it, defining spaces to accommodate diametrically opposed lugs. An offset can join each head to the handle. The inside of the head, that is, the inside of the jaws proximal of the second teeth, define a cylindrical surface that matches the radial outer extent of the lock nut lugs. The wrench can operate as a spanner, and can accommodate either a six- or an eight-lug lock nut. The handle is coated with an insulating plastic material. The ends of the jaws can be snubbed or hog-nosed. The wrench head may be adapted for use with a socket wrench handle. The wrench can be formed by laser-machining sheet or plate metal stock.

Abstract: A lock-nut wrench has an elongated handle and a head at one or both ends of the handle. The head or heads have right and left arcuate jaws with distal ends that define a gap and each jaw has a first radially inwardly directed tooth at its distal end and a second radially inwardly directed tooth spaced proximally from it, defining spaces to accommodate diametrically opposed lugs. An offset can join each head to the handle. The inside of the head, that is, the inside of the jaws proximal of the second teeth, define a cylindrical surface that matches the radial outer extent of the lock nut lugs. The wrench can operate as a spanner, and can accommodate either a six- or an eight-lug lock nut. The handle is coated with an insulating plastic material. The ends of the jaws can be snubbed or hog-nosed. The wrench head may be adapted for use with a socket wrench handle. The wrench can be formed by laser-machining sheet or plate metal stock.

Abstract: An oil recovery mop has a floating carriage, a handle, and a number of oil-absorbing pads or squares suspended from the carriage. The carriage has a pair of tubular pontoons that support a crossbar at a clearance over the surface of the water, and the pads are removably attached to spring clips on the crossbar. When the oil mop is pushed out, one side of each pad faces the surface to absorb spilled oil. When the oil mop is pulled in, the pads reverse themselves and the other side faces down to absorb oil.