Abstract: An attachment device for floor shaving systems includes a machine mounting coupler and a tool receptacle that are joined at a compound angle to position a scraping tool off the center axis of a scraping machine. The mounting coupler is constructed from solid steel bar and has a shape and a size that is complementary to the tool receiver of a scraping machine and is secured within the receiver via a mounting pin. The tool receptacle is constructed from steel and includes a hollow channel with a magnet on one end and an opening on the other end for receiving and engaging the shaft of a scraping tool and permitting the same to rotate 360 degrees. The mounting coupler and tool receptacle are joined at an angle of 11 degrees to permit the blade of the tool to engage expansion joint intersections diagonally to prevent damage to concrete.

Abstract: A removable barricade or barrier which has one or more horizontally tensioned straps and one or more vertically extending elevation support elements associated therewith. The barricade or barrier may be erected and dismantled as desired.

Abstract: A removable barricade or barrier which has one or more horizontally tensioned straps and one or more vertically extending elevation support elements associated therewith. The barricade or barrier may be erected and dismantled as desired.

Abstract: A support post base for a portable safety rail or fence system, said base having a top face side, an opposed bottom face side for contacting a support surface, and first toe rail holder means (e.g. holder slot or channel element(s)) configured for detachably engaging a toe rail component for horizontal disposition thereof, said top face side presenting support post engagement means (e.g. (upright) socket, pin, or the like) configured for detachably engaging one or more support posts for upstanding disposition thereof.