Abstract: A fishing line clamping and release assembly for attachment to a floatation member used to transport a fishing line to a remote fishing area of a body of water. The assembly includes superimposed members held together by magnetic force between which an intermediate portion of the fishing line is positioned and held fast. One of the members is slidably movable with respect to the other member to release the fishing line and permit it to drop into the water. The slidable member is actuated by a solenoid connected thereto which is remotely operated through a radio transmission signal.

Abstract: Apparatus for automatically treating a floor or material on a floor is described in which a support carrying means for treating the floor is provided with a first set of wheels for moving the support in one direction or the opposite direction of a first path of motion and a second set of wheels is positioned at a right angle to the wheels of the first set of wheels for moving the support in one direction at a right angle to the first path of motion. This second set of wheels is movably mounted with respect to the support so that the second wheels can be forced downwardly to bear against the floor and thereby lift the support from the first wheels, and raised upwardly to allow the first wheels to contact the floor. Means are provided to raise and lower the second set of wheels, means are provided to drive the first and second set of wheels, and sensing means to detect an obstruction at each end of the support with respect to the first path of motion are also provided.