Abstract: The invention concerns a drum brake of the type comprising brake actuator inserted between two adjacent ends of two brake shoes, the opposite ends thereof cooperating with a fixed anchoring member. An adjusting lever is pivotable relative to one of the shoes upon wear of the linings carried by the shoes, to control relative rotation between two elements of an extensible member. According to the invention, a resilient means normally connect the extensible member to the one shoe and an adjustment limitor are provided to connect the extensible member to the lever when the relative motion between the free end of the lever and the one shoe exceeds a predetermined value.

Abstract: The invention concerns a packaging and display arrangement of a well-known type in which a flexible plastic film container is used to store premeasured amounts of two chemical substances such as for instance a glue and a catalyst and in which separation of the two components prior to use is obtained by means of a member which is applied externally to the container and which is received within a channel portion of a supporting base. Another portion of the base is arranged to form a mixing trough for the components once they have been brought together and one portion of the member may likewise serve as an applying spatula.

Abstract: Process for producing fluid fuel from coal using a hydrogen-donor solvent as an extractant. Moisture-free, preheated coal in particulate form is contacted in a drum with hot solvent to extract the hydrocarbons therefrom. Subsequently, the pressure is released to vaporize the solvent and at least a portion of the hydrocarbons extracted. The temperature of the mass in the drum is then raised under conditions required to crack the hydrocarbons in the drum and to produce, after subsequent stripping, a solid coke residue. The hydrocarbon products are removed and fractionated into several cuts, one of which is hydrotreated to form the required hydrogen-donor solvent while other fractions can be hydrotreated or hydrocracked to produce a synthetic crude product. The heaviest fraction can be used to produce ash-free coke especially adapted for hydrogen manufacture. The process can be made self-sufficient in hydrogen and furnishes as a by-product a solid carbonaceous material with a useful heating value.

Abstract: A thrust-bearing and guiding assembly which permits limited angular displment of a rotating shaft in any axial plane while preventing axial translation motion of the shaft comprises a bearing support articulated within a stator housing. The bearing support has two spherical sliding zones which form part of spheres having different centers, one zone being adapted to cooperate with a complementary surface of a ring which is endowed with freedom of sliding motion in the transverse direction with respect to the axis of the rotor within the stator housing.

Abstract: An electric power generating device recovering the energy of the exhaust gases of an internal combustion engine, comprising a speed-reducer mounted between the engine and a transmission shaft and a turbo-alternator set driven by the energy taken from said exhaust gases and the turbine of which is operatively connected to said reducer through a reversible transmission system with variable speed keyed in follow-up relationship to the speed variations of said transmission shaft.

Abstract: A gas turbine engine of the type comprising a compressor and an expansion rbine of which the respective rotors are mutually joined together in rotation and in axial traction by a main coupling device. The engine includes, in addition, a safety coupling device joining together these two rotors only in axial traction but allowing them to turn one with respect to the other in case of accidental fracture of the main coupling device.

Abstract: A device for mounting in a nacelle on an airframe a turbojet engine contad by a casing, the device being of the type comprising a mast member integral with the airframe, a nacelle coaxial to the turbojet engine, quick release locking members connecting the compressor casing to the rear nacelle section, and elements for releasably connecting the rear nacelle section to the mast member wherein the device further comprises sliding guides permitting the nacelle to be displaced parallel to the longitudinal axis of the engine, along the mast member between an active and advanced position in which the rear nacelle section is supported against the casing of the compressor, and an inactive or remote position, in which the rear nacelle section is separate from the casing, and links directly connecting the casing of the engine to the mast with a view to ensuring support of the turbojet engine when the rear nacelle section is in the inactive or remote position.

Abstract: A device for liquid purification includes a vat provided with metallic elrodes and connected to a circulating pump and to a filter containing at least one filtering layer of low granulometry built up from accumulation of floculates. The device is particularly suited for water treatment.

Abstract: A musical instrument support for holding an instrument on a wall mounted bracket in elevated position above the floor. The instrument support is detachable from the bracket and is collapsible from a position in which it holds the instrument to a transport or storage position and is provided with scales to facilitate unfolding the instrument support to a desired size to accommodate a given instrument.

Abstract: Zinc-air electrochemical cell comprising several elements fed with an electrolytic solution comprising zinc powder in suspension, conveyed by forced flow in the said elements, those elements being grouped together in modules, electrically connected in series and fed by the said solution also in series within each of the said modules. Such a cell comprises one or several unitary cell blocks each comprising two substantially identical modules arranged one above the other and electrically connected together in parallel, the module situated at the upper level receiving the said electrolytic solution which, after it has crossed through that module, is transferred to the input of the upper element of the second module situated at the lower level and lastly, flows out through the output of its lower element.

Abstract: The present invention relates to culture media in which animal cells may be grown and more particularly to such culture media containing animal serum and methods for culturing cells in the media. Specifically, the present invention encompasses a culture medium for lymphoblast cells comprising an aqueous nutrient medium containing 0.5% - 20% swine serum and about 0.1% of a surfactant which inhibits the precipitation of proteins and methods for using said medium.

Abstract: In the lyophilization of solid, liquid or pasty products the product to be lyophilized is placed in an open secondary container of flexible material which is capable of being subsequently closed and lyophilized in a lyophilization apparatus with the container kept open. On completion of lyophilization the container is closed and the closed container withdrawn from the apparatus. Preferably the container is in the form of a bag, e.g. a heat-sealable plastic bag. A lyophilization apparatus is provided with means for supporting secondary containers accommodating product to be lyophilized, means for keeping the secondary containers open during lyophilization and means for closing the containers on completion of lyophilization.

Abstract: The invention relates to a sodium-sulphur type electric cell. The cell includes a cathode tank containing sulphur and an anode tank containing sodium, fixed to an alumina plate, as well as an electrolyte tube immersed in the sulphur, such fixing being effected by disposing an aluminium seal between the tank and the plate and compressing at a temperature close to but less than the melting point of aluminium, at least the cathode tank being advantageously made of chrome-plated steel. The invention is implemented in electric cells for electric propulsion.

Abstract: The invention relates to an electric cell of the sodium-sulphur type, suitable more particularly for undergoing a complete recharge. It comprises a cathode tank containing sulphur, an anode tank containing sodium, these reagents being separated by a solid electrolyte tube disposed in said cathode tank which is fitted with graphite felt washers ensuring cathode collection of the current generated, wherein some washers are disposed to have an edge distant from the wall of said electrolyte tube in order to avoid depositing sulphur on said tube during recharging. The invention is used in electric cells for electric vehicles.

Abstract: Process and apparatus for removing solid matter from coal tar recovered f coal distillation comprising the steps of centrifuging the tar in order to produce a liquid phase consisting of tar which is substantially free of residual solids and a solid phase consisting of solid matter and tar, and mixing the solid phase with a solid material comprising carbon.

Abstract: A weatherproof junction box cover assembly, comprising a structural member for mounting relationship with a junction box and a cover hingedly mounted on the structural member with cooperative inter-acting hood means at the top and sides of the cover assembly. A shiftable bias means is provided to normally bias the cover toward a closing position, the bias means being shiftable between an over-center station in relation to the pivot means whereby the cover will stay open when moved to the fully open position and a direct-closing-bias station whereby the cover will be constantly biased toward the closing position. The same cover assembly may therefore be used as a stay-open device or as a self-closing device, merely by shifting the anchor point of the bias means.

Abstract: This measuring arrangement minimizes the influence of disuniformities in the first dynode, struck by the beam's ions, of the electron multiplier used in the arrangement. The beam F whose current is to be measured is expanded, for example using a divergent lens, between the analyzer slot and said dynode. In a variant embodiment, the beam is imparted a rapid oscillatory motion which causes it to scan the dynode.

Abstract: 3,4-bis(4-substituted piperazinyl)-3-cyclobutene-1,2-diones and related compounds having antiviral activity are described herein. The subject compounds can be prepared by reacting 3,4-dimethoxy-3-cyclobutene-1,2-dione with the appropriate substituted piperazine.

Abstract: Peptides containing the residues of methionine and aspartic acid are prepared by standard coupling techniques and display valuable pharmacological, e.g. gastrin-inhibitory, properties.