Abstract: The invention relates to a system for pneumatically powering a wheel comprising a bearing support (10), a shaft (20) comprising a hub-forming end (21) which extends radially (Y), at least one set of rolling bearings (30), wherein the system further comprises a chamber (C) formed by the hub-forming end (21), the bearing support (10), a rolling bearing seal (40) and a chamber seal (50), a primary channel (60) crossing the bearing support (10) and opening into the chamber (C), a secondary channel (70) crossing the hub-forming end (21) and opening into the chamber (C), wherein seals seal the cavity (C) in order to let air pass from the primary channel to the secondary channel via the cavity (C).

Abstract: The present invention relates to a system comprising: a shaft having a distal end and a proximal end; a casing defining a housing in which a hydraulic device is rotatably mounted on the shaft; and a sealing element comprising a low pressure dynamic sealing means and a reinforced dynamic sealing means formed by a static seal tightly mounted on a friction pad, such as to isolate the dynamic sealing means from the rotating hydraulic device, said sealing element defining a discharge chamber between the dynamic sealing means and the reinforced dynamic sealing means, which discharge chamber is connected to a drain via a pipe arranged on the surface of the shaft, between the hydraulic device and the shaft, so as to discharge the fluid located in the discharge chamber, such that said discharge chamber is not subjected to the pressure in the casing of the hydraulic device.

Abstract: The invention concerns a suspension element for self-propelled machine comprising: a suspension fork (100) secured to the chassis of the machine and comprising two parallel arms (120, 130), a motor (400), secured to two sleeves (200, 300) each comprising at least one bearing (210A, 210B, 310A, 310B) adapted to slide in translation on the arms (120, 130), the suspension element being characterized in that the two sleeves (10) (200, 300) are separate parts, the motor (400) comprising a casing (410) adapted to form a supporting frame allowing the ensured rigid connection between the two sleeves (200, 300) and for this purpose comprising connecting means designed to ensure the connection between the supporting frame of the motor and each of the two sleeves over a center distance range of the sleeves while withstanding the forces applied by the chassis on the casing.

Abstract: The invention relates to a turning device for a steered wheel of a rolling machine, the device including: a yoke (20), an assembly (10) for mounting the steered wheel, including an end piece (11) intended to be attached to the steered wheel, and an intermediate connecting member (300), relatively to which the end piece (11) is mounted so as to rotate around a first axis (13) of rotation of the steered wheel, a support (12) pivotally mounted around a second axis (23) of rotation relatively to the yoke (20) according to a turning angle (ANG) of the wheel, the second axis (23) of rotation being distinct and not parallel to the first axis (13) of rotation of the steered wheel, a turning angle sensor (30), one from among the support (12) and the yoke (20) being attached to the intermediate connecting member (300) and the other one from among the support (12) and the yoke (20) being intended to be attached to a fixed portion (C, E) of the rolling machine.

Abstract: The invention relates to a system for pneumatically powering a wheel comprising a bearing support (10), a shaft (20) comprising a hub-forming end (21) which extends radially (Y), at least one set of rolling bearings (30), wherein the system further comprises a chamber (C) formed by the hub-forming end (21), the bearing support (10), a rolling bearing seal (40) and a chamber seal (50), a primary channel (60) crossing the bearing support (10) and opening into the chamber (C), a secondary channel (70) crossing the hub-forming end (21) and opening into the chamber (C), wherein seals seal the cavity (C) in order to let air pass from the primary channel to the secondary channel via the cavity (C).

Abstract: The invention relates to a hydraulic apparatus (1) including: a casing (6) defining a first assembly; a shaft (2) defining a second assembly; said first and second assemblies being freely rotatable relative to one another; a multi-lobe cam (3) rotatably connected to one of said first or second assembly; a dispenser (51) and a dispenser cover (52); a cylinder block (4) mounted such as to be freely rotatable relative to said first and second assemblies and including a means for rotatably engaging relative to the other of said assemblies, characterized in that the hydraulic apparatus (1) includes a return means for moving the cylinder block (4) in order to rotatably disengage same from said first or second assembly, and in that the dispenser (5) is configured, when applying pressure, to rotatably engage the cylinder block (4) relative to the other of said first or second assembly.

Abstract: The hydraulic system comprises a casing (10) in which there are disposed hydraulic apparatus (12), a shaft (14) engaged in the casing, and a sealing device (16) between the shaft and the casing. The sealing device comprises first and second sealing elements (20, 22) disposed in succession on the shaft while forming between them a discharge chamber (24) connected to a drain (26), the first sealing element being situated between the discharge chamber and the internal space (11) of the casing. Between the discharge chamber (24) and the internal space (11) of the casing, the hydraulic system has a communication duct (28) in which a calibrated jet nozzle (30) is disposed.

Abstract: The present invention relates to an assembly comprising —an axle (1), —a steering pivot (2) mounted on the axle (1), —a wheel spindle (3) mounted on the pivot (2), —a hydraulic motor and a wheel mounted on said spindle (3), such that the spindle (3) is pivotally mounted relative to the axle (1), the axle (1), the spindle (3) and the pivot (2) being provided with communicating hydraulic pipes to supply the hydraulic motor with fluid, the hydraulic pipes being arranged in the axle (1), the pivot (2) and the spindle, the pivot (2) comprising a shaft member fitted in the axle (1) about which the spindle (3) is fitted, the axle (1) and the spindle (3) each comprising grooves connected respectively to the hydraulic pipes of the axle (1) and the spindle (3) in such a way as to form the rotating joint with the hydraulic pipes of the pivot (2).

Abstract: The invention relates to a hydraulic apparatus (1) including: a casing (6) defining a first assembly; a shaft (2) defining a second assembly; said first and second assemblies being freely rotatable relative to one another; a multi-lobe cam (3) rotatably connected to one of said first or second assembly; a dispenser (51) and a dispenser cover (52); a cylinder block (4) mounted such as to be freely rotatable relative to said first and second assemblies and including a means for rotatably engaging relative to the other of said assemblies, characterized in that the hydraulic apparatus (1) includes a return means for moving the cylinder block (4) in order to rotatably disengage same from said first or second assembly, and in that the dispenser (5) is configured, when applying pressure, to rotatably engage the cylinder block (4) relative to the other of said first or second assembly.

Abstract: The present invention relates to an assembly comprising —an axle (1), —a steering pivot (2) mounted on the axle (1), —a wheel spindle (3) mounted on the pivot (2), —a hydraulic motor and a wheel mounted on said spindle (3), such that the spindle (3) is pivotally mounted relative to the axle (1), the axle (1), the spindle (3) and the pivot (2) being provided with communicating hydraulic pipes to supply the hydraulic motor with fluid, the hydraulic pipes being arranged in the axle (1), the pivot (2) and the spindle, the pivot (2) comprising a shaft member fitted in the axle (1) about which the spindle (3) is fitted, the axle (1) and the spindle (3) each comprising grooves connected respectively to the hydraulic pipes of the axle (1) and the spindle (3) in such a way as to form the rotating joint with the hydraulic pipes of the pivot (2).

Abstract: The present invention relates to a system comprising: a shaft having a distal end and a proximal end; a casing defining a housing in which a hydraulic device is rotatably mounted on the shaft; and a sealing element comprising a low pressure dynamic sealing means and a reinforced dynamic sealing means formed by a static seal tightly mounted on a friction pad, such as to isolate the dynamic sealing means from the rotating hydraulic device, said sealing element defining a discharge chamber between the dynamic sealing means and the reinforced dynamic sealing means, which discharge chamber is connected to a drain via a pipe arranged on the surface of the shaft, between the hydraulic device and the shaft, so as to discharge the fluid located in the discharge chamber, such that said discharge chamber is not subjected to the pressure in the casing of the hydraulic device.

Abstract: The invention concerns a suspension element for self-propelled machine comprising: a suspension fork (100) secured to the chassis of the machine and comprising two parallel arms (120, 130), a motor (400), secured to two sleeves (200, 300) each comprising at least one bearing (210A, 210B, 310A, 310B) adapted to slide in translation on the arms (120, 130), the suspension element being characterized in that the two sleeves (10) (200, 300) are separate parts, the motor (400) comprising a casing (410) adapted to form a supporting frame allowing the ensured rigid connection between the two sleeves (200, 300) and for this purpose comprising connecting means designed to ensure the connection between the supporting frame of the motor and each of the two sleeves over a center distance range of the sleeves whilst withstanding the forces applied by the chassis on the casing.

Abstract: This invention relates to a drive device incorporating a hydraulic motor and a planetary reduction gear. The motor comprises a housing in which radial pistons are disposed. The device comprises means for coupling between the output of the motor and the input of the reduction gear, the latter comprising a housing in which is disposed a planetary reduction gear system and having an output provided with means for driving in rotation. The housing of the motor and the housing of the reduction gear form distinct enclosures and the device comprises means for allowing a circulation of fluid between these housings and for controlling this circulation by limiting this circulation in at least one direction of circulation between the housing of the motor and the housing of the reduction gear.

Abstract: Enzyme degrading rhamnogalacturonane II (RG-II) having an endo-.beta.-L-rhamnopyranosyl-(I.fwdarw.3')-D-apiofuranosyl hydrolase activity and/or an endo-.alpha.-L-fucopyranosyl-(I.fwdarw.4)-L-rhamnopyranosyl hydrolase activity. This enzyme can be produced by a microorganism, especially of the penicillium species, such as the branches 1-1577 and 1-1578 lodged with the CNCM. The RG-II can obtained from plant extracts by means of a method comprising a chromatography stage.

Abstract: The present invention provides rhamnogalacturonan-II (RG-II) and relates to its ability to complex specific multivalent heavy metal cations. In the presence of boric acid, RG-II monomers form dimers that are cross-linked by a borate ester. The yield of such borate ester cross-linked dimers of RG-II is enhanced in the presence of specific heavy metal cations. The present invention further relates to the utility of RG-II in assays for the detection of specific heavy metal contamination; as a reagent useful in the removal of specific heavy metal cations contaminating foods and liquids, for example, fish, wines, etc.; as a pharmaceutical composition useful as an antidote in specific heavy metal cation poisoning; as a treatment for the detoxification of specific heavy metal cations from blood and/or tissues; and in a method of remediation of waters and soils contaminated with specific heavy metal cations.