Abstract: A water drainage and thermal insulating material for subterranean walls consisting of a panel adapted to be applied to the exterior surface of a wall prior to applying earth or other backfill material to its outer surface. The panel consists of a relatively thick slab of thermal insulating material, both surfaces thereof being grooved in a diamond pattern to provide water flow passages, the slab being completely wrapped in a filter cloth fabric with a layer of loosely compacted fibrous material secured to the surface thereof confronting the slab. All of the materials are substantially impervious to ground moisture.

Abstract: A protective cover for keyboard machines consisting of a transparent hood affixable to the machine housing and open at one side to admit the operator's hand, including a panel generally parallel to the keyboard face and spaced apart therefrom by a distance sufficient to allow normal hand and finger movements by the operator, but too close to permit any appreciable whole-hand movements normally to the keyboard whereby the operator cannot strike the keyboard buttons with excessive force which can damage the machine. The hood prevents access of spilled liquids, paper clips, coins, bits of metal or the like to the keyboard. Such foreign matter may find its way to the interior of the machine through slots and other openings of the keyboard, and cause malfunctioning thereof.

Abstract: A liquid proportioning container consisting of a main reservoir and a measuring vessel, the latter being so calibrated that when filled with one liquid to a specified level and its contents added to the main reservoir, and the main reservoir then completely filled with another liquid, said liquids will be mixed in specified proportions. The measuring vessel may constitute an intrinsic portion of the main reservoir, such as a pouring spout or a liquid filtering device therefor or may constitute an integral portion of the main reservoir.