Abstract: The present invention relates to a suspension for a set of two wheels of a vehicle comprising two arms oscillating about an axis X--X transverse to said vehicle and each bearing one of said wheels, elastic means and damper means being associated with said arms respectively to counteract and dampen the vertical movements of said wheels and said elastic means comprising an assembly of two concentric tubes made of a composite fibre-synthetic resin material coaxial to said transverse axis X--X about which the arms oscillate. According to the invention, the tubes are fast with each other near the center of their length; said arms are fast with the ends of the outer tube; said ends of the outer tube may rotate at least in limited manner about said transverse axis X--X, and the inner tube is connected to the chassis of the vehicle by its two ends.

Abstract: This invention relates to a printing machine provided with a printing head comprising a plurality of coaxial rotating printing wheels, wherein the control wheel is fast in translation with a carriage mobile parallel to the axis of said printing wheels and bearing two stepper motors, of which the first allows said carriage to slide and the second drives said control wheel in rotation. The invention is particularly applicable to the printing of parts, cables, wires, etc. . . . when they are manufactured.