Abstract: A collapsible support allowing tilting or elevating an object and embedded into the object surface thus becoming an integral and complementary part of it. The support which is characterized by its thinness makes it appropriate for integration into small portable objects such as calculators and personal digital assistant and to objects having a rigid articulated cover such as a ring binder, a diary or a mobile work station, without affecting significantly the physical properties of the objects such as its shape and its robustness nor its simplicity or manufacturing cost. It can also be integrated into the jacket of one of these objects or constitute an independent tilting structure being used to support a distinct object. It is made up of a rigid mobile part, that alternatively combines the roles of support and that of peripheral structure.

Abstract: A collapsible support allowing tilting or elevating an object and embedded into the object surface thus becoming an integral and complementary part of it. The support which is characterized by its thinness makes it appropriate for integration into small portable objects such as calculators and personal digital assistant and to objects having an articulated cover such as a ring binder or an agenda, without affecting significantly the physical properties of the objects such as its shape and its robustness nor its simplicity or manufacturing cost. It is made up of a rigid mobile part, that alternatively combines the roles of support and that of peripheral structure, and of a flexible band that are attached together and to the remainder of the peripheral structure of the object by three articulations. The support may be formed as an integral one-piece, one shot, injection molding of a plastics material.

Abstract: A cooling tower for condensing water has a hyperbolical main wall with an per portion which defines a passage for ascending vapor-laden air. The upper portion contains an annular insert serving to intercept currents of cool air which develop and tend to flow into the interior of the intermediate portion of the main wall at low wind velocities and/or to intercept turbulent air which develops and tends to flow into the intermediate portion when the wind velocity at the top of the tower is high. The insert may constitute a sheltered passageway for workmen and may be made integral with the upper portion of the main wall. The width of the annular space which is defined by the insert and upper portion of the main wall may be a whole multiple of the depth of such space, and the cross-sectional area of this space can approach one-half the cross-sectional area of the passage through which cooling air escapes from the tower by flowing upwardly within and above the insert.