Patent ID: 8240267
Filing Date: 2012-08-14
Classification: B63B

Abstract:
1. A device for ensuring an orientation in a fixed direction of an object threaded on a rope, moving rotation-wise about said rope and joined to said rope translation-wise, said object having the form of a cylinder of length L, presenting a transversal section of height H and comprising a longitudinal duct having the form of a cylinder of revolution, located at a level of its widest base, by which it is threaded onto the rope, said device comprising: a rear face through which leaves the rope, a bevelled front face, through which enters the rope, and a cavity of a length at least equal to the length L of the object to be oriented, said cavity presenting an axis of symmetry and comprising an opening extending over its entire length, an edge of which is formed by two symmetrical half-edges, the profiles of which firstly follow two counter-rotational and coaxial helical curves, the axis of symmetry of which is the same as the axis of symmetry of the cavity, each helical half-edge performing a rotation of around 180° about the axis of symmetry from a point of the edge of the opening common to both half-edges and situated at a level of the front face of the device; there then follow two parallel straight segments spaced apart so that a width of the opening ensures the appropriately oriented guidance of the object-until the device is paid out by maintaining a desired orientation.