Abstract: A quick release trailer and hitch apparatus has a container mounted on a pair of wheels with a pair of pull bars attached for being adjacent to the outer front corner regions of the container. The pull bars being gradually and continuously together with their remote ends attached to a connecting member. The connecting member has a center gripping portion and a rigid attachment portion with an orifice therethrough. A swivel member, permanently coupled on a ball member and freely rotatable thereabout, has a hitch portion with a first passageway for receiving the rigid attachment portion and a second passageway intersecting the first passageway. A spring loaded pin is provided to extend through the second passageway and the orifice in the rigid attachment portion to hold the swivel member and the connecting member immovable relative to each other. The ball member is attached to the bicycle in any appropriate way, such as with a bracket.

Abstract: A knurling tool has a planar face plate with an orifice for receiving a workpiece therethrough. Slide blocks are slidably mounted in opposing planar slots in the face plate. Each slide block has a slot with a knurl bit mounted therein so that the knurl bits extend into the face plate orifice for pressing against the surface of the work piece. An adjustment screw is provided to adjust each slide block longitudinally along the slot in which it is mounted and to provide a means of forcing the knurl bit against the workpiece surface. A clamping screw is also provided to clamp each slide block in its slot. A machine mounting apparatus is also provided for attaching the tool to a machine such as a milling machine, lathe, or other such machine.