Abstract: Described herein is a System of Tubular Connections (STC) for a building method for constructing and fastening together any elongated symmetrical frameworks such as awning or fences, eliminating the need for other fastening methods such as welding. The STC consists of four (4) basic physical elements. Element 1 is any elongated symmetrical shape, for example tubing or 2×4 wooden boards. Element 2 is any threaded product. Element 3 is a tubing fastener used when Element 1 is symmetrical hollow tubing. Element 4 is the building block that the elongated symmetrical shape is screwed into or through.

Abstract: This invention relates to portable air-conditioning units for through-hatch marine use which have their conventional air-conditioning mechanisms carried on a base member above the hatch opening and which employs a cover shell enclosing said mechanisms divided into two compartments internally, one compartment not communicating with the outside air which contains a cooling coil and a fan for moving air from a duct which has an opening below the hatch through the coil and back through another duct which also has an opening below the hatch and the other compartment not communicating below the hatch which contains the compressor, a heat exchanger, and another fan for moving outside air through the exchanger. Various shrouds, adjustable supports, and level indicators may be included in the units.

Abstract: A translucent intermediate sheet having a standard array of bingo numbers is sandwiched between transparent top and bottom sheets. Alterations to the card, such as by a cheater, to permit changing, adding or rearranging bingo numbers can be seen through the sheets.

Abstract: A sheet interfitting section puzzle includes incongruent pieces with complementary indicia which are physically separated by the puzzle piece internal edges and complementally abuttable internal edges which may be arranged in only one combination with all internal edges in complementary abutting relationship. When so arranged the complementary indicia are adjacent. Internal edges may be identical and therefore pieces may fit in an incorrect location while the puzzle is being constructed, in which location indicia adjacent to complementally abutting sides would not be complementary, but all the pieces must be located in their correct locations for the puzzle to be solved.