| 摘要 |
1,234,828. Gas cylinder discharge device. MINISTER OF AVIATION SUPPLY. 8 Oct., 1969 [14 Oct., 1968], No. 48483/68. Heading F4P. [Also in Division H1] A satellite carries a solar cell array which is stored folded and is extended to a fully deployed position by erection of a framework consisting of honeycomb aluminium cross-bars 15b-15e (Fig. 4) attached to telescoped aluminium alloy tubes. After assembly the innermost of the telescoped tubes 14 is filled with compressed gas via valve 21. On a ground command signal or automatically when the spin rate falls to a certain level explosive charges are detonated electrically to move ring 23, thereby releasing pivoted spring-loaded claws 25 from detents 24 in the shaft extension of member 27. The outermost tube then moves right thereby causing sealing ring 32 to be dislodged and allowing controlled escape of the gas via vent 33 to extend the assembly. Mating keys and keyways on the tubes prevent relative reaction. Mating conical stops on the tubes and crossmembers determine the extension, whereupon loaded pawls engage recesses in the keys to positively lock the tubes. |
