Abstract: A conveyor intended to conduct components to different work stations, the conveyor including: a bearing and guide rail positioned on the work site so as to conduct the products to be conveyed to the work stations, a traction member carried by the rail the member being driven by a drive unit, and a multitude of trolleys movable on the rail and to which the components are attached, each trolley having two wheels running on the rail and two arms bearing the load to be conveyed. The wheels of the trolley include a central core and an outer band both made of composite material and positively connected by fixing element which immobilize the outer band with respect to the central core in order to absorb tensile or compressive stresses and shocks, thereby reducing the noise, wear and lubrication of the elements of the conveyor.

Abstract: The invention relates to a non-reusable hose-clip, intended to ensure for example the connection of two tubular members. The invention also relates to a tool for tightening the clip.The clip is composed of a band forming a loop comprising a free end (2).It is characterized by the fact that in the vicinity of the other end it comprises locking means (4) which are self-tightening due to wedging of the free end. These means are preferably constituted by a casing (8) of convergent shape and a wedge (17) of complementary shape. Possibly, spring means (24) restore the wedge to the locked position. Also, wedging may be reinforced by the engagement of complementary teeth.Also, in the vicinity of the terminal part of its free end (2), the clip according to the present invention comprises means facilitating calibrated tightening of the latter. According to one embodiment, these means comprise an aperture (7), possibly a flange (6) by which the swinging head of a pulling tool engages the band.