Abstract: Devices, implements, tools and methods for cleaning undesirable growth and debris from crevices, cracks and spaces in sidewalks, walkways, driveways, and wood decks with a grippable handle having a bent nail type metal rod at one end with a socket having interior threads at an opposite end that can be directly manipulated in one's hand or as an attachment to the end of an elongated handle having a threaded end.

Abstract: A method of fabricating propellers including a number of spiral segments of a hub each having a corresponding blade portion are integrally formed by press forging. These spiral segments are then electron beam welded together to form a propeller. To ensure maximum weld strength, spiral segments are provided, which results in a longer weld seam. In one embodiment, the shaft is friction welded to the front of the propeller, a stud is welded to a rear end of the propeller, and the stud is machined to form a hydrodynamic end cap for the propeller.