Abstract: Process and apparatus for lifting and retracting of a power tailgate platform held laterally by one of its sides by an operative arm. During a first phase, the platform is raised laterally by swivelling around an originally horizontal lifting axle, from a horizontal operative position to an intermediate vertical position, and then, in a second phase, the platform and its lifting axle are swivelled around a retracting axle that is fitted at right angles to the operative arm and arranged at an angle in relation to the lifting axle, preferably at 90.degree. to the latter, in such a way that the platform reaches a vertical storage position.

Abstract: A device for automatically closing the elevator deck of lift gate is actuated by a drive device and constituted by a parallelogram deformable under the action of the drive device. The arm of the parallelogram intended to support the elevator deck extends beyond its point of articulation on the lower adjacent arm of the parallelogram, thus defining an extension. The elevator deck is articulated on the lower end of the extension of the arm supporting the elevator desk. An articulation element of adjustable variable length is mounted to pivot, on the one hand, on the elevator deck and, on the other hand, at an appropriate point of the chassis or of the upper arm of the deformable parallelogram, so that the distance between these two points of articulation of the element of articulation of variable length decreases when the lift gate is being raised.

Abstract: The invention relates to a device for introducing and positioning a label the walls of a mold formed in two parts separated by a mold joint, in a machine with a reciprocating cycle for the extrusion/blow molding of hollow bodies, of the type comprising:--a member for storing labels disposed above the open mold,--a vertically mobile jack, disposed above the open mold, associated with means adapted to grip a label in the storage member, then to lower this label into the open mold,--means adapted to maintain the deposited label against the walls of the mold during the path of transfer of this mold, wherein a jack adapted to generate a reciprocating vertical movement is associated with a vertical rigid rod bearing at its end a rigid member adapted to pivot about this end, this pivoting rigid member comprising two rigidly connected arms, one forming a pivot stop when its abuts on the upper part of the mold, the other, vertical, bearing at its other end the label to be deposited.