Abstract: A movement device for moving a load provided with wheels and rolling on railway rails, including at least: a geared motor of which the shaft has a horizontal axis of rotation, a drive roller rotated by the shaft of the geared motor, and two support rollers rotated by adhesion by the drive roller. The movement device includes at least: an arm secured by one of its ends to the shaft of the geared motor and extending horizontally and perpendicularly to the axis of rotation, and a brake shoe secured to the free end of the arm and configured so as to be placed in the vicinity of the wheel of the load to be moved on the side opposite to the drive roller.

Abstract: A riveting device for mutual assembly of two parts each including a bore, where the device includes a non-deformable external rivet having a tubular body suitable for being inserted into said bores and provided on one of the longitudinal ends thereof with a lip, and an internal rivet having a solid deformable cylindrical body and issuing substantially perpendicular from a flange, said tubular body having an external diameter slightly less than the diameter of said bores and a length D between the rear face of the lip thereof and the opposite end thereof at most equal to the sum of the thicknesses of the parts, said cylindrical body having an external homothetic transverse cross-section slightly less than the internal transverse cross-section of the tubular body, and a length slightly greater than that of the tubular body.

Abstract: The wire twisting pliers include a reversible transformation device including a casing, a double helix pin, separate right-hand and left-hand guiding elements, housed in a single drum and radially movable between a drive position in which one is directly and forcefully engaged in said right-hand or left-hand helix and couples said casing to said drum, the other is free to retract from said right-hand or left-hand helix, said casing being movable between right- and left-hand positions in which said right-hand and left-hand guiding elements are respectively in the drive position of same, free or vice versa. A reversible wire twisting pliers including such a transformation device.

Abstract: A riveting device for mutual assembly of two parts each including a bore, where the device includes a non-deformable external rivet having a tubular body suitable for being inserted into said bores and provided on one of the longitudinal ends thereof with a lip, and an internal rivet having a solid deformable cylindrical body and issuing substantially perpendicular from a flange, said tubular body having an external diameter slightly less than the diameter of said bores and a length D between the rear face of the lip thereof and the opposite end thereof at most equal to the sum of the thicknesses of the parts, said cylindrical body having an external homothetic transverse cross-section slightly less than the internal transverse cross-section of the tubular body, and a length slightly greater than that of the tubular body.

Abstract: The wire twisting pliers include a reversible transformation device including a casing, a double helix pin, separate right-hand and left-hand guiding elements, housed in a single drum and radially movable between a drive position in which one is directly and forcefully engaged in said right-hand or left-hand helix and couples said casing to said drum, the other is free to retract from said right-hand or left-hand helix, said casing being movable between right- and left-hand positions in which said right-hand and left-hand guiding elements are respectively in the drive position of same, free or vice versa. A reversible wire twisting pliers including such a transformation device.

Abstract: A remote manipulator of a tool has a body provided with a fixed jaw and a slide provided with a mobile jaw able to be displaced linearly, actuators located at a distance and coupled to the tool via a cable integral with a side of the slide and sliding inside a flexible sheath having one end integral with the body. The actuators have two arms each associated respectively to a handle and able to be separated angularly from each other by rotation about an axis by a value such that the distance between their free ends is at least equal to the maximum linear displacement of the slide bearing the mobile jaw, when the two handles are brought close to one another.

Abstract: The invention relates to a gripping tool, particularly for a mechanical part, comprising: a bell provided with gripping means facilitating the handling of said bell; a cage coaxial with said bell and rotatable, comprising at least one lateral opening and receiving said mechanical part; three bearing members including at least one movable retractable rotating roller; said bell being provided with at least one slope for varying the centre-to-centre distance between said retractable rotating roller and said bell based on the angular position of said retractable rotating roller, said cage and said retractable rotating roller being interconnected by guiding means arranged to guide said retractable rotating roller, said cage and said guiding means are arranged to enable the radial movement of said retractable rotating roller such that the axis thereof can pass through the wall of said cage.