be readily modified to provide sufficient structural restraints for any construction or utility need it should be noted that when the structure is deployed the sub cells 11 and the several structural elements will generally taken on particular geometric relationships with regard to one another in order to take advantage of the symmetry for stowage in the particular embodiment shown in fig1 and 2 structural elements 15 and 16 of the sub cells are positioned such that each corner is disposed at 90 degrees or such that they form a squared section similarly hinged members 22 23 24 and 25 are positioned such that one of the hinged arms is positioned 90 degrees to its adjacent base structural element and the other is positioned at 45 degrees to its adjacent base structural elements this peculiar arrangement provides a degree of structural integrity to the cell 10 and the two sub cells 11 are mirror images of each other the pivot elements 31 and 32 shown in fig6 and 7 can therefore be generally quite similar in design and in arrangement the differences are usually in the length and direction of certain connection points where the several elements of the sub cells 11 are attached thereto in the particular embodiment shown in fig6 and 7 each of pivot points 31 and 32 include several connecting points on base 40 and additional connecting pivots on angled connecting arms 41 and 42 pivot point 31 of fig6 has a large connecting arm 42 than that of pivot 32 of fig7 in order to accommodate the force transmitted by actuator element 30 the above described.