Abstract: Concrete building panels include a decorative embossed pattern on an outer surface. A plurality of concrete reinforcing ribs are disposed along an inner surface of the concrete building panels. Nailing strips are anchored into tips of the respective concrete reinforcing ribs. A method for making the building panels include a step of placing anchored nailing strips into tapered rib sections of a horizontal fiberglass mold is disclosed wherein reinforcing bars and mesh and moist concrete are placed into the mold and allowed to cure until the exposed upper surface of the moist concrete is plastically deformable. The horizontal mold is passed beneath a rotating embossing roller having a cylindrical embossing pattern thereon. The plastically deformable concrete contacts the embossing pattern, producing a complementary pattern on the concrete surface. The embossed concrete is cured in the mold to produce the building panel. The concrete building panel is then separated from the mold.

Abstract: A hand-held tool with a rotary pumice or suitable synthetic grinding wheel is connected by means of a flexible drive cable to a remote water turbine contained in a floating housing and is used to remove calcium deposits from decorative tile around a periphery of a swimming pool. The outlet of the water turbine is connected to one end of a suction hose, the other end of which is connected to a suction inlet of an electric pump/filter unit, causing water to be drawn from the swimming pool through the turbine. In an alternate embodiment of the invention, the remote turbine is placed in a lavatory sink. Water from a faucet is forced through the turbine, causing rotation of the drive cable, so that the hand tool can be used to clean calcium deposits from bathroom facilities.

Abstract: Concrete building panels include a decorative embossed pattern on an outer surface. A plurality of concrete reinforcing ribs are disposed along an inner surface of the concrete building panels. Nailing strips are anchored into tips of the respective concrete reinforcing ribs. A method for making the building panels include a step of placing anchored nailing strips into tapered rib sections of a horizontal fiberglass mold is disclosed wherein reinforcing bars and mesh and moist concrete are placed into the mold and allowed to cure until the exposed upper surface of the moist concrete is plastically deformable. The horizontal mold is passed beneath a rotating embossing roller having a cylindrical embossing pattern thereon. The plastically deformable concrete contacts the embossing pattern, producing a complementary pattern on the concrete surface. The embossed concrete is cured in the mold to produce the building panel. The concrete building panel is then separated from the mold.