Abstract: A docking system for space modules includes a docking device having respective male and female coupling members carried by the two space modules. The coupling members are arranged to allow, after they have been brought into their coupled condition, relative rotation of the two modules about the axis of the docking device. The system further includes a plurality of connecting devices arranged to lock the two space modules in a precise relative position after the male and female members of the docking device have been brought into their coupled condition. Each of the said connecting devices comprises a coupling seat located in one of the two modules and a coupling shank carried by the other module and axially movable between a withdrawn inoperative position and an extended coupling position. This coupling shank has a head which is expandible within the said coupling seat to effect the connection between the two modules.

Abstract: In an extensible arm having a reticular lattice structure with a polygonal cross-section, particularly for space modules or vehicles, each longitudinal side of the lattice structure includes first and second kinematic pantograph chains each constituted by a plurality of rods articulated together so as to define a series of aligned X-shaped elements. The rods of the second kinematic chain are shorter than the rods of the first kinematic chain, and the articulations between the X-shaped elements of the second kinematic chain located on one side of the latter coincide with the articulations between the X-shaped elements of the first kinematic chain located on the same side.

Abstract: A drill bit for drilling holes in laminates consisting of a matrix of plastic material incorporating graphite or glass fibers as used particularly in the aviation industry. The bit comprises cutting elements each of which presents a first straight sharp edge of very low conicity and positive rake and a second sharp edge having a convex curvature (FIG. 1).