Abstract: A propeller blade comprising a composite member. The composite member comprises a stack of plies and a matrix in which the stack of plies is embedded. At least one ply comprises a plurality of first yarns aligned in a first direction defining a plane of the ply and a plurality of second yarns extending transverse to the plane of the ply. Each second yarn does not extend through more than one ply. Also provided is a propelling system comprising the propeller blade, a composite propeller blade prepreg, and a method of forming a propeller blade.

Abstract: A disk brake vibration damper comprising a cylindrical element (4) equipped on its cylindrical peripheral surface (41) with a layer of a supple material (5) which exhibits properties of adhesion with the materials of the piston (3) and of the cylindrical element (4). This cylindrical element (4) is intended to be positioned inside an axial cavity (30) of the piston with the layer of supple material (5) in contact with the interior wall (31) of the cavity of the piston (3).

Abstract: An anti-vibration device “D” having a shank (10) fixed to a structure (S) and a mass (4) retained on the shank (10) that is pressed by a spring (8) against the structure (S) with a predetermined force. The spring (8) increases the friction forces between the structure (S) and the mass (4) to deaden vibrations of the structure (S).

Abstract: A disk brake vibration damper comprising a cylindrical element (4) equipped on its cylindrical peripheral surface (41) with a layer of a supple material (5) which exhibits properties of adhesion with the materials of the piston (3) and of the cylindrical element (4). This cylindrical element (4) is intended to be positioned inside an axial cavity (30) of the piston with said layer of supple material (5) in contact with the interior wall (31) of the cavity of the piston (3).

Abstract: An anti-vibration device “D” having a shank (10) fixed to a structure (S) and a mass (4) retained on the shank (10) that is pressed by a spring (8) against the structure (S) with a predetermined force. The spring (8) increases the friction forces between the structure (S) and the mass (4) to deaden vibrations of the structure (S).

Abstract: The invention relates to a cap for a hydraulic fluid reservoir for a brake circuit of a vehicle. According to the invention, it has a filling aperture (24) intended to be closed by a valve member (38) through the action of a spring (36) mounted in the cap (10) in order to allow the reservoir to be filled on the assembly line without removing the cap. The valve member (38) is axially movable against the spring (36) which returns it in a closed position. The valve member (38) preferably has a seal.

Abstract: The present invention relates to a brake corrector subject to the load of a vehicle despite the possible variation in the height of the seating of the latter. According to the invention, the corrector comprises a fluidic pressure sensor arranged between the vehicle chassis and the corresponding end of a suspension spring of the vehicle, a body (1) in which a slidably mounted at least one piston (2, 3) controlled by an actuating rod (10) and arranged so as to interact with a valve element in order to control a passage of the corrector, the body and the fluidic sensor being connected fluidically in such a way that a variation in pressure determines a first force exerted on the piston, and a sensor of the height of seating of the vehicle, the response of which determines a second force likewise exerted on the piston, the first and second forces combining to act on the piston (2, 3).

Abstract: Hydraulic assistance device for brake actuation comprising a body (10) having a bore (12) in which first and second piston mechanisms (34, 56) are slidably mounted, the first piston mechanism (34) being displaceable under the effect of the actuation of a third piston (16) mounted slideably in the bore (12), and the second piston mechanism (56) being displaceable by way of a hydrostatic connection formed in a presure chamber (60) defined between the first and the second piston mechanism (34, 56), there being associated with each piston mechanism (34, 56) a respective valve mechanism (52, 78) in a respective hydraulic circuit between a fluid source under pressure (54, 84) and a respective brake circuit (62,88), and a third chamber (30) defined in the bore (12) between the first piston mechanism (34) and the third piston (16), characterized in that the third chamber (30) is partially delimited by a fourth piston (92) which is displaceable under the effect of the pressure in the third chamber (30) as it meets a f

Abstract: The lower part (11) of the chamber 8 of the geartrain (1, 3) has a profile substantially matching the peripheral outline of the lower gear, adjacent it, and forms a divider nose (12) connected flush to a discharge conduit (14) opening outwardly within an external container (16) the base of which communicates with the bottom part of the chamber (8) via an external conduit (22, 23, 25) including a restriction (26).

Abstract: The contactor incorporates, in a cavity (70), a fixed contact blade (20) and a movable contact blade (21) pushed elastically away from the fixed contact blade (20) in the opposite direction to the direction in which the follower (13) is pushed, the follower (13) being capable of cooperating in thrust with the piston mechanism (2) of the casing of the servomotor in which the contactor is mounted, the movable contact blade being coupled to a plunger (15) mounted so as to slide in the follower (13) and incorporating a shoulder (16) which is capable of cooperating with an abutment (18) of the follower. The cavity (70) isoldated hermetically from the outside, communicates freely and permanently with the rear working chamber (4) of the servomotor through passages (12).