Abstract: A jigsaw puzzle piece organizer wherein a plurality of trays are provided for holding a plurality of groups of puzzle pieces according to the color and configuration of the puzzle pieces. Interconnected empty trays can be arranged in a compact stack for storage, or in an interconnected stack wherein there is a clearance between adjacent trays containing puzzle pieces for providing temporary storage for the puzzle pieces during the assembly of the puzzle to completion.

Abstract: A mechanical system is disclosed to deploy an antenna on a support which may, for example, be a spacecraft. A series of telescoping tubes are nested one within the other when the antenna is in a retracted stowed position. The outermost tube is rigidly attached to the support and the inner tubes are latched in the stowed position by a caging mechanism. The antenna is driven toward a deployed position by a dual motor driven cable which is terminated in a driving tube at the lower end of the innermost tube, from whence the cable is trained about pulleys at the tops and bottoms of successively large tubes of the antenna. The cable is wound on a drum at the lower end of the antenna and coaxial therewith. During deployment of the antenna, the drum rotates, thereby reeling in the deployment cable. The initial movement of the cable causes cam releasing of the latches in the caging device. Thereafter, the antenna tubes are extended until the final deployed position of the antenna is reached.