Abstract: The control assembly for a hydraulic circuit of a vehicle having an engine compartment and a passenger compartment which are separated by an apron (22) comprises:a vacuum booster (16) having one axis (18) and including:an actuating rod (20) projecting into the passenger compartment;a shell (14) which is intended to be fastened by its periphery to the apron (22) in the engine compartment and to which a master cylinder (10) is fastened; anda cover (26) closing the shell and bearing circumferentially on the apron (22) in the engine compartment,a pedal unit for actuating the booster, including at least one pedal (30) mounted on a lever (32), the pivot (34) of which is retained by a bearing piece (36) fixed to the cover.

Abstract: The pressure-regulating system for a hydraulic circuit, comprises at least one generator (22) of fluid under pressure, a hydraulic motor (20) and a reservoir (24) of fluid under low pressure. It further includes a solenoid valve controlled by a computer and comprising an electrical coil (1) and a sliding magnetic core (3) controlling a slide (7) sliding in a bore provided in a body (9). The slide (7) defines two chambers (11, 15) arranged on either side of the slide (7) in the bore. The slide (7) comprises a hydraulic cell (26) determining a reaction force opposing the force generated by the coil (1), the cell (26) being connected to one of the chambers (11, 15) as long as the solenoid valve is not energized, while it is connected to the hydraulic motor (20) after energization. An elastic mechanism (13) returns the slide (7) and the core (3) to the rest position.

Abstract: Device for the dispensing of springs in at least one unit, comprising a sng-feed device of the type with a flexible tube, within which the springs are arranged behind one another, in contact and coaxially with a flexible tube, and a tubular dispensing body which includes two coaxial tubes (10, 12) , the inner tube (12) being mounted telescopically relative to the other tube (10), a connection (38) between the feed device (40) and the inner tube (12), and first and second mechanisms (14 and 16) for blocking the first and second mechanisms (18 and 20) for unblocking the first and the second springs (R1, R2) contained in the inner tube (12), these blocking and unblocking mechanisms (14, 16, 18, 20) being controlled by the relative displacement of the outer tube (10) in relation to the inner tube (12), in such a way that the first spring (R1) is compressed by the first blocking mechanism (14), before being released by the first unblocking mechanism (18).

Abstract: An improvement to T1 digital communications systems uses the alternate mark inversion (AMI) encoding format, typically used in T1 systems, and the D.C. system that powers the repeaters for enabling quick and accurate in-service detection and identification of malfunctioning or failed repeaters.

Abstract: The boosted brake system comprises two tandem master cylinders (15, 16), each controlled by way of the piston of a vacuum booster (10, 11) comprising at least two chambers, one (10) of these brake boosters being controlled by way of a pedal and comprising a valve mechanism making it possible to generate a difference between the pressures prevailing in the two corresponding chambers, and a reservoir (17) for feeding brake fluid to the associated hydraulic circuits the two chambers of one (10) of these boosters communicate respectively with the two corresponding chambers of the other booster (11), and the two hydraulic circuits (30, 32) associated with one (15) of the master cylinders communicate respectively with the two hydraulic circuits (30, 32) of the other master cylinder (16).

Abstract: The disc brake comprises a rotary disc, a caliper (10) straddling the disc, mounted on a stationary support so as to be movable perpendicularly relative to the plane of the disc and carrying two friction elements which are arranged on either side of the disc and of which the first bears on the caliper and the second bears, for example by way of a rigid counterplate (13), on a threaded pusher (12), itself screwed in a piece mounted so as to form a device for the automatic compensation of wear, and having a head (8) interacting with a retention member (16) of a form matched to this head, in order to prevent any rotation of the head. The head (8) assumes the form of a notched wheel, and a prestressed elastic mechanism (19) fixed to the caliper (10) forces a projecting element (21, 25) of the retention member (16) to interact with at least one notch of the wheel (8).

Abstract: The braking system comprises two hydaulic sub-circuits each connecting a driving wheel and a free wheel to a working chamber of a master cylinder (1) and includes a wheel braking anti-lock device comprising, for each of the wheels, a three-way solenoid valve (54, 53, 52, 51) normally opening communication between an inlet of fluid under pressure and the brake motor (34, 33, 32, 31) associated with the wheel, while, in the expansion phase of the anti-lock device, it closes this communication and connects the brake motor to a reservoir (21, 22) of fluid under low prressure for each sub-circuit, a switching slide (11, 12) isolating the brake motors from the working chamber of the master cylinder during the functioning of the pump (46, 45) is associated with the anti-lock device.

Abstract: The invention relates to a brake compensator for a hydraulic braking circuit comprising a master cylinder (10) with two working chambers respectively connected to a subcircuit (I, II), the compensator being arranged in a subcircuit (I) comprising a first piston (22) carrying a valve mechanism (24) arranged in a communication between a working chamber of the master cylinder (10) and at least one rear wheel (16) in such a way that, in the rest position, this communication is open, and a second piston (42) subjected to the pressure prevailing in the other subcircuit (II) so as to lock the first piston (22) in the rest position in the event of the absence of a substantial pressure in the other subcircuit (II).

Abstract: The pressure-regulating system for a hydraulic circuit, comprises at least one generator (22) of fluid under pressure, a hydraulic motor (20), a reservoir (24) of fluid under low pressure and a solenoid valve controlled by a computer and comprising an electrical coil (1) and a sliding magnetic core (3) controlling a slide (7) which slides in a bore provided in a body (9). The slide (7) defines two chambers (11, 15) arranged on either side of the slide (7) in the bore, and it comprises a hydraulic cell (26) communicating with the hydraulic motor (20) and determining a reaction force added to the force generated by the coil (1), counter to a prestressed elastic means (131) and to a return spring (132) returning the slide (7) and the core (3) to the rest position.

Abstract: The invention relates to an integrated pressure amplification and modulation system for a hydraulic brake circuit, comprising at least one master cylinder (10), a hydraulic motor, a source of fluid under high pressure (48) and a reservoir of fluid under low pressure (14), a computer-controlled solenoid (32) modulating by way of a magnetic core (30) the position of a slide (22) which slides in a bore (20). According to the invention, the fluid under pressure coming from the master cylinder (10) is applied to one face (24) of the slide (22), the other face of which bears on the magnetic core (30l ) and receives the force exerted by a spring (34) for return to rest. A reaction chamber (40) formed in the slide (22) is connected permanently to the hydraulic motor (38), and the hydraulic motor (38) is connected either to the reservoir (14) or to the source of fluid under pressure (48), depending on the position of the slide (22).

Abstract: The invention relates to an assembly consisting of a brake booster and of a master cylinder (50), the booster comprising, in a casing (10), at least one movable wall (14, 14') which sealingly divides the interior of the casing (10) into a front chamber (16, 16') and a rear chamber (18, 18'), an input member (24) intended to be connected to a brake pedal and displacing the movable wall (18, 18'), and an output member (28) actuating a piston (46) of the master cylinder (50). According to the invention, a transfer member (40) is arranged between the front face of the casing (10) and the master cylinder (50), this transfer member (40) being actuated by the output member (28) of the booster along a first axis (A--A) and actuating the piston (46) of the master cylinder (50) along a second axis (B--B), and the brake booster, the transfer member (40) and the master cylinder ( 50) form a modular construction.

Abstract: The disclosure relates to a femoral prosthesis consisting of a metal rod having a male frustoconical end portion and a femoral head, or ceramic ball, having a frustoconical blind recess, assembled by means of a conical sleeve fitment. The ceramic ball is formed of material having an improved flexion breakage modulus and an improved elasticity modulus.

Abstract: New strains of L. acidophilus capable of adhering to the tissue cells of various species of animals and having resistance to both erythromycin and streptomycin are described. The strains may be used in a suitable carrier as a dietary supplement for providing a source of the bacteria in an animal.

Abstract: The vehicle brake pressure proportioning valve subject to the load of a vehicle and controlled fluidically comprises a piston (18) sliding in a stepped bore made in a body and carrying a normally open shutter arranged between a source of fluid under pressure and an associated brake circuit, the piston (18) being movable counter to a spring under the effect of the pressure of the fluid which tends to close the shutter, and comprising furthermore a sealed control chamber (16) connected to a load sensor (10). The proportioning valve further comprises a normally open additional valve (14) arranged between the chamber (16) and the sensor (10), in order to interrupt communication between the chamber (16) and the sensor (10) during a braking operation.

Abstract: A hydraulic pump comprises at least one alternating-cycle piston (20) having a suction phase and a delivery phase, and sliding in a fixed cylinder (22). The pump possesses in addition a nonreturn suction valve (32) placed between a source of fluid under low pressure (28) and a working chamber (30) defined in the cylinder, and a nonreturn delivery valve (34) placed between the working chamber (30) and an output chamber (16) for the fluid under high pressure, connected to an application circuit 10, 12). The output chamber (16) possesses a wall (40) which is movable as a function of the pressure which prevails in the output chamber (16), the movable wall (40) being capable of controlling the locking of the delivery valve (34) in an open position substantially during the greater part of the suction phase when the pressure in the output chamber (16) is greater than a given pressure, in such a way that the suction valve (32) stays closed in a corresponding manner.

Abstract: The invention relates to a pneumatic brake-booster comprising, in series, a control rod (10) substantially fixed to a plunger (12) by a pivot mechanism (14), a reaction disk (16) and a push rod (18), the control rod (10) actuating a three-way valve with two seats (24, 26), s specific space being provided at rest between the reaction disk (16) and the plunger (12). According to the invention, one of the two seats of the valve consists of the end of a sleeve (30) coaxial with the plunger (12), a prestressed compressible mechanism (32) tending to shift the sleeve (30) and plunger (12) axially away from one another, the sleeve (30) coming axially up against one end of a piece (36) fixed to the control rod (10) after the relative positions have been set.

Abstract: A pneumatic brake booster (10) capable of operating without being actuated by a pedal (14), possesses at least one fixed part (36) and a control rod (12) with which the pedal cooperates (14). A sleeve (30) bears against the pedal (14) and partially surrounds the control rod (12), the control rod (12) possesses a shoulder (32) forming a stop cooperating with the sleeve (30) at rest and when the brake booster is actuated by the pedal (14), and the sleeve (30) is loaded by a spring (34) maintaining the pedal (14) at a given distance from the fixed part (36) of the brake booster (10) while the pedal (14) is not actuated.

Abstract: An apparatus for measuring the length or perimeter of an object has a main housing part provided with a main abutment and forming a main attachment location and a movable housing part provided with a movable abutment normally spaced longitudinally from the main abutment and with a movable location forming a guide. The movable part is longitudinally displaceable on the main housing part so as to displace the abutments longitudinally relative to each other and also to displace the locations longitudinally relative to each other. A flexible but substantially inextensible element has an outer end fixed to the main attachment location and an outer portion extending between the locations, passes through the guide at the movable location, has an intermediate portion guided in the movable part, and has an inner portion extending in the main portion and an inner end.

Abstract: A hydraulic braking circuit comprises at least one brake fluid source (26, 36), a master cylinder (10), the outlets of which are connected to at least one sub-circuit comprising at least one brake motor (14, 16), and which is controlled by way of a pedal (12), and an electronic control unit (22). It also comprises a pressure generator (24), and an electrovalve (28, 30) which is arranged in each sub-circuit, so as to establish a connection, when at rest, between the outlets of the master cylinder (10) and the associated brake motors (14, 16) and, in the excited position, between the outlets of the generator (24) and the associated brake motors (14, 16), the control unit (22) being capable of simultaneously controlling the functioning of the pressure generator (24) and the excitation of the electrovalve (28, 30).

Abstract: A resonant high-frequency or micro-wave applicator for the thermal treatment of a flat material is disclosed. This applicator comprises a flat capacitor between the plates of which the material moves and an inductor which is constituted by a metal band extending transversely the plate acting as hot electrode. The inner face of the plate acting as ground electrode is divided into elementary sections by an assembly of longitudinal grooves. Preferably, the same applies to the inner faces of the plate acting as hot electrode and the inductor.