摘要:
The sleeve for protecting the splice (4) in telephone cables (2) and (3) is made up of two half-shells (1a, 1b) joined together by their adjacent edges, around splice (4). These adjacent edges are provided with a groove which, in the position where the shells are joined together, defines a duct, devices being provided for injecting into this duct a pasty material creating watertightness between these adjacent edges. The opposite ends (9, 20) of the sleeve are provided with jaws (11, 12, 13) for securing axially the ends of the cables (2, 3) to the sleeve and with devices for creating watertightness between these cables and these ends (9,10) of the sleeve.Each of the ends (9,10) of the sleeve bears at least two detachable jaws (11, 12) defining between them a chamber (18) connected with the above-mentioned duct.
摘要:
Heavy goods vehicle tire including beads, sidewalls and a tread. To deflect the flow of water expelled laterally by this tire while running on a wet road, the tire is provided on each of its sidewalls, and near the tread, with a protuberance. One protuberance is positioned on the tire so as to be effective over a first period of use of the tire and the other protuberance is positioned on the tire so as to be effective after the tread has partially worn away, and after the worn tire has been reversed so as to place such other protuberance to the outside of the vehicle.
摘要:
A pneumatic device for fitting cables in a tube with improved unit safety in the event of excess pressure, comprises a capsule adapted to be introduced inside a tube and connected to a line used to pull the cable inside the tube. A unit (9) has a connection (20) to a compressed air source and a compressed air outlet connector (18) adapted to be connected in a substantially sealing-tight relationship to one of the ends of the tube. The unit comprises a distributor (19, 23) for distributing compressed air to the outlet connector (18), this distributor co-operating with discharge structure (32, 28, 29) to discharge the compressed air from the unit (9) in the event of an excess pressure downstream of the unit outlet connector (18).
摘要:
A plastic sleeve for protecting splices of telephone cables and electric cables against moisture comprises two half-shells (1a, 1b) assembled together. The edge (2a) of one half-shell (1a) comprises a rib (12) engaged in a groove (13) formed in the edge (2b) of the other half-shell (1b). One side of the groove (13) is formed by a flexible wall (14). The rib (12) which is engaged in the groove has an inclined face (12a) which forms an angle (a) of a few degrees with the inclined inner face (14a) of the flexible wall (14). The space formed by this angle is filled with a strip of putty (16) which is deformed and compressed between the inclined faces (12a and 14a).
摘要:
The injection cartridge comprises two containers (1, 2) one of which is slidably mounted in the other. An actuating rod (8) has a smooth leading portion (9) and a rear threaded portion (10) separated by a threaded intermediate portion (11). The container (1) has in its end (12) a threaded opening (13) receiving the threaded intermediate portion (11). The nozzle (5) of the container (2) has a thread (15) for receiving the thread (14). The threaded portion (10) of the rod (8) has a nut for abutting against the first container to push it towards the other container. The cartridge may be used for injecting a semi-pasty product into a protective sleeve for a joint in a telephone cable.
摘要:
A tracer gas leakage detector mainly comprises a primary vacuum pump which is selectably connectable to a unit to be tested for leakage, an inlet valve also connectable to the unit to be tested and communicating with a measurement cell capable of being evacuated by a primary pump and a secondary pump. The inlet valve includes a motor-controlled valve member to enable the aperture through the inlet valve to be servo-controlled to the inlet pressure of the measurement cell, and conversion means providing an electrical signal representative of the aperture. The apparatus for measuring and displaying the leakage flow rate is connected to receive the aperture size representing electrical signal and includes a display system for displaying, as a function of the aperture size representing electrical signal, a valid sub-range of n decades of possible valid measurements taken from a total measuring range of N decades for the apparatus as a whole, thereby warning users that any indicated leakage flow rate values outside the valid sub-range are spurious. The N decades may be marked on a band (22) which is movable relative to a window (24). A pointer (25) is also movable relative to the window. A reading is valid if the pointer lies in the window.
摘要:
A tire (10) with a hooping reinforcement (100) including a part extending axially beyond a crown reinforcement that has NC intersections with any radial plane. A part (41) of the sidewall applied radially between an outer strip (120) and tread (30) is made of a rubber compound that has an elastic modulus E, and a mean thickness EA. The hooping reinforcement (100) is made of a textile material that has a shrinkage force at 180° C. (FC) that is less than or equal to 12 N. Elastic modulus E, mean thickness EA, number of intersections NC and the shrinkage force at 180° C. (FC) are chosen such that for each sidewall of the tire, the following inequality is satisfied: K = ( E · EA 2 · P B · NC · FC )
摘要:
A cartridge for injecting a mixture of two liquid constituents comprising a reservoir (1) which has a compartment (2) for one of the constituents and a compartment (3) for the other constituent. The reservoir (1) comprises two concentric cylindrical compartments (2, 3), respectively containing a first and a second constituent. A piston (6, 7) is mounted in sliding manner in each of the two compartments (2, 3), and provision is made for sliding the two pistons (6, 7) simultaneously. Each of the compartments (2, 3) opens into a common mixing chamber (4) which comprises partitions (8, 9) defining a sinuous path of the mixture of the two constituents between the two compartments (2, 3) and the outlet opening (5) of the mixing chamber (4). Use, in particular, for injecting a semi-pasty sealing material into a hollow body.
摘要:
A sleeve for protecting cable splices, in particular for telephone cables, comprises two half-shells (3, 4) so designed as to be assembled together along their longitudinal edges (3a, 4a) around the cable splice (2). The opposite ends of the sleeve have jaws (5, 6, 7, 8) for radial clamping and axial retention of the two cable ends (1a, 1b) and means are provided for forming a fluid-tight seal between the two half-shells (3, 4) and between the cable and the jaws. The half-shell (4) comprises two end elements (9, 10) which are intended to be fitted over the clamping jaws (5, 6, 7, 8) and a central element (11) which is placed between the two end elements and covers their adjacent edges (9a, 10a).