Abstract: A device for the imaging of an object to be studied, combines: a prism made from a material with no losses (non-absorbent) for radiation in the microwave range; a sample holder on a front face of the prism for receiving the object to be studied; and a mobile emitting antenna on a rear face of the prism in order to emit radiation in the microwave range.

Abstract: A device for the imaging of an object to be studied, combines: a prism made from a material with no losses (non-absorbent) for radiation in the microwave range; a sample holder on a front face of the prism for receiving the object to be studied; and a mobile emitting antenna on a rear face of the prism in order to emit radiation in the microwave range.

Abstract: R.sub.3, R.sub.4 and R.sub.5, each represents a hydrogen or halogen atom (at least one of R.sub.3, R.sub.4 and R.sub.5 being other than hydrogen or halogen); optionally substituted amino; optionally halogenated or hydroxylated alkyl, alkoxy, alkylalkoxy or alkylthio; or R.sub.3 and R.sub.4 (in the 3- and 4-positions) can together form a single divalent radical with 3 or 4 members containing 1 or 2 non-adjacent oxygen atoms; are useful as agricultural fungicides.

Abstract: Compounds of formula ##STR1## in which: CYCLE surrounded by a semicircle represents, with the two carbon atoms to which the semicircle is linked, a carbon-containing, optionally heterocyclic, ring containing at least one ethylenic or aromatic bond between the two carbon atoms which carry the --C(Z).dbd.Y group and the phenyl group, Y is oxygen or sulphur, Z is NR.sub.1 R.sub.2, R.sub.1 and R.sub.2, each represents optionally substituted alkyl, alkoxy or cycloalkyl; alkenyl or alkynyl; or --NR.sub.1 R.sub.2 represents saturated or unsaturated heterocyclyl;R.sub.3, R.sub.4 and R.sub.5, each represents a hydrogen or halogen atom (at least one of R.sub.3, R.sub.4 and R.sub.5 being other than hydrogen or halogen); optionally substituted amino; optionally halogenated hydroxylated alkyl, alkoxy, alkylalkoxy or alkylthio; or R.sub.3 and R.sub.4 (in the 3- and 4-positions) can together form a single divalent radical with 3 or 4 members containing 1 or 2 non-adjacent oxygen atoms; are useful as agricultural fungicides.

Abstract: The vehicle comprises four compartments for receiving accumulator batteries. Two of these compartments are placed on each side of the frame of the vehicle in the median part of the latter. The other two compartments are disposed on each side of the rear wheel of the vehicle. The motor of the vehicle is preferably disposed under and at the rear of the saddle. Many advantages result from this arrangement which enables an increased production of this type of vehicle to be envisaged.

Abstract: The drive unit comprises mainly a motor-gearing down relay assembly (M, R) whose single case (1, 2) carries suspension arms (3, 4) which rearwardly extend the assembly and support the driving wheel of the vehicle and a suspension system such as springs (19).

Abstract: A steering mechanism lock which may be closed when the steering mechanism is turned to the full in a given position, a hood for covering the fuel tank and the pump and other accessories mounted on the sides of the tank, and a hook sliding in the steering mechanism tube and fitting in an opening of the upper part of the hood. Inside the tube, a pin cooperating with a sleeve precludes the raising of the hook out of the opening so long as the steering mechanism has not been turned to the full in the direction opposed to the direction for locking the steering mechanism.

Abstract: The starter comprises a flywheel rotated by an electric motor and an electromagnetic clutch for rendering the flywheel rigid with the crankshaft of the engine to be started. The flywheel carries on one side the armature of the motor and on the opposite side the inductor of the clutch. The motor inductor is carried by a flat disc which is parallel to the flywheel and defines a planar airgap of the motor. The flywheel has a part which is common to the magnetic circuits of the motor armature and the clutch inductor and has sufficient section to permit the circulation of the motor or clutch magnetic flux but is saturated by the circulation of the flux of the motor so that a remanent flux of the clutch will be cancelled out as soon as the magnetic flux of the motor is produced.

Abstract: The plunger tube of the handle-bar stem adapted to be blocked in the fork tube of the vehicle is provided at its end with at least one inclined outer face. A nut adapted to cooperate with the inclined face has the same number of inclined faces which are inclined in the opposite direction. An expanding member is tightened against each face of the tube and against the corresponding face of the nut and urged outwardly by the translation of the nut axially of the plunger tube so that the nut bears against the fork tube and blocks the two tubes.

Abstract: Fungicidal compositions for controlling fungus diseases in plants are disclosed. These compositions contain as their active materials compounds and polymers thereof corresponding to the formula: ##STR1## in which Y', Y", Z' and Z" represent a hydrogen atom or an optionally halogenated alkyl radical containing from 1 to 5 carbon atoms. Included within these active materials are the hydrolysates, salts and quaternary salts of these phospholanes. These cyclic phospholanes or phosphites and their hydrolysates are compatible with other commercial fungicides and the compositions disclosed include these compounds above and in combination with such other fungicides.

Abstract: The extension of the handle-bar stem is provided with a transverse aperture forming a collar for receiving and supporting the handle-bar. A clamping lug which extends from the collar toward the vertical arm of the stem has an upper face which defines with a lower face of the extension a slot splitting the collar. The lug and the extension are provided with apertures for the passage of a clamping device.The extension also has an axial cavity which is extended by an opening formed in the collar. The clamping device has one end hidden in the cavity and an opposite end hidden within the thickness of the clamping lug.

Abstract: Probe for selectively detecting polar molecules in a gaseous atmosphere in contact with the probe, characterized by a layer of semiconductor material covered by a film of dielectric material.

Abstract: Sensor for selectively detecting at least one constituent of a gaseous mixture in contact with the sensor. The sensor comprises a thin layer of a semiconductor material covered with a dielectric film formed with a large number of microscopic openings.

Abstract: Fungicidal compositions for controlling fungus diseases in plants are disclosed. These compositions contain as their active materials compounds and polymers thereof corresponding to the formula: ##EQU1## in which Y', Y", Z' and Z" represent a hydrogen atom or an optionally halogenated alkyl radical containing from 1 to 5 carbon atoms. Included within these active materials are the hydrolysates, salts and quaternary salts of these phospholanes. These cyclic phospholanes or phosphites and their hydrolysates are compatible with other commercial fungicides and the compositions disclosed include these compounds above and in combination with such other fungicides.