baber/WOPTO huggingface dataset:
Patent FR-2288856-A1 (FR)
Title: Carnot cycle operated engine - has closed cycle through four cylinders with two heat exchangers
IPC: F02G1/04
Filed: 1974-06-12
Abstract: The working fluid enters the cylinder (D) when the piston (17) is at bottom dead centre. The fluid is compressed and delivered through the valve (25) into the heat exchanger (Ef) where it is cooled and then into the cylinder (A) where the piston (14) is initially at top dead centre and the valve (22) initially closed. When the piston (14) reaches bottom dead centre, the valve (21) closes and the valve (22) opens so that the fluid passes into cylinder (B) where it is compressed and then delivered through the valve (23) to the heater (Ec) where heat is supplied. The fluid then expands in cylinder (C) and is afterwards passed through the exhaust valve (24) to the cylinder (D) to repeat the cycle.
Patent FR-2279108-A1 (FR)
Title: Measurement of consolidation and permeability coeffts. of ground - using permeameter with constant water press applied during test
Inventor: MIEUSSENS CLAUDE
IPC: G01N15/08
Filed: 1974-06-14
Abstract: A permeameter is used to measure volume of water injected or released by ground under investigation. Pressure or vacuum conditions can be applied for the test duration. This method permits measurements of coefficients of consolidation and permeability without the errors presented by existing methods. A piston (2b) in a chamber (a) is controlled by a shaft (2c) driven by an electric motor order to inject or extract water (1) through a permeameter connected to the pipe, (7). Water pressure is maintained constant at a particular value by mercury (9) in contact with oil (13) in the arms of a U-tube (8). This is connected to the permeameter through a tube (12) connected to an oil to water exchanger, (11).
Patent FR-2234616-A1 (FR)
Title: Tachograph with recorder and indicator - has indicator shaft mounted on cover and connectable to self-centering coupling
IPC: G07C5/06
Filed: 1974-06-20
Abstract: The indicator shaft mounted on the cover connected to the self-centering coupling is mounted on a swashplate in the housing and supporting the coupling. It is connected rigidly to a first gear rim concentric to it, which engages with a second gear rim driven from the recording and indicating mechanism and fixed to the housing. This second gear rim is connected rigidly to a third gear rim concentric to it, which actuates the recording elements via a rack. The indicator uses a pointer in the usual way.
Patent FR-2263483-A1 (FR)
Title: Shell and tube heat exchanger - for use in cooling uranium hexafluoride in gaseous diffusion isotope enrichment
IPC: F28F9/02
Filed: 1974-06-20
Abstract: In the mfr. of straight tube heat exchangers for the cooling of UF6 in gaseous diffusion plants for the isotopic enrichment of U-238 with U-235, (a) the tube bundle is fabricated by assembling the tubes on two end tube plates in a non-polluted environment while the shell is manufactured in an ordinary environment (b) the interior of the shell is protected and (c) each tube plate is joined by simple welding to the appropriate part of the shell. More especially a special flexible element is inserted in each joint between the tube plate and the shell to take up unbalanced stresses due to unequal thermal expansion etc. A better thermal efficiency can be achieved due to the higher permissible cooling water velocities and therefore the heat exchange surface can be reduced.
Patent FR-2275767-A1 (FR)
Title: Tobacco humidity measurement by weight loss - heater controlled by auto transformer to dry tobacco
IPC: G01N5/04
Filed: 1974-06-20
Abstract: Humidity content of substances such as tobacco is measured by determining the loss of weight after hot air is passed through the substance. A particular air temperature is required and differences are accounted for by a calibration chart. Repetitive cycles are avoided by using an autotransformer to regulate heater power. The substance under test is placed in a drying container through which heated air at a particular temperature is passed. The air is obtained by blowing air through a tube containing a heating element (31). This heater is connected to the output terminals (34) of an autotransformer (32) through a control knob (33) with cursor (35) thus enabling the ideal temperature to be rapidly obtained. The transformer is connected to a power source through fuses (37).
Patent FR-2276756-A1 (FR)
Title: Automatic level control for microphone amplifier - uses series transistor with its base polarisation varying with output
IPC: H04R25/00
Filed: 1974-06-24
Abstract: An automatic level control audio circuit is for either a polarised or unpolarised microphone. The output of the microphone is connected to the collector of a transistor (Q) and the emitter is connected to an amplifier of appropriate gain. The transistor connections may be reversed. Its base is polarised in one direction by a fixed resistor (R1) and in the other direction by the rectified output (R3) of a potentiometer across the amplifier output. In this way the transistor has its transfer resistance varied as a function of the output level thus giving automatic gain control.
Patent FR-2284566-A1 (FR)
Title: Treating aq effluents contg emulsified hydrocarbons - by adding soluble zinc salt to break emulsion, and adjusting to alkaline pH to ppte zinc hydroxide
Inventor: ASKIENAZY ALEXANDRE
IPC: C02F1/52
Filed: 1974-09-11
Abstract: Aq. effluents contg. oils and emulsions of hydrocarbons in water are purified by adding a suitable amt. of a water-soluble zinc salt with an anion which favours the breaking of the emulsion, and adjusting the pH to alkaline. The process is used esp. for treating effluents e.g. from the petroleum industry, allowing much reduced processing costs compared with known methods such as passing the effluent through active carbon beds. Pref. the zinc salt is ZnCl2 or ZnSO4. The amt. of Zn salt addn. is determined by experiment. In general the Zn salt is added first and the pH is then adjusted to pH 7-8 with NaOH or KOH. The addn. of the zinc salt is accompanied by stirring for (e.g.) 1-4 hrs., when the liberated oil rises to the surface to form a layer. After making the mixt. alkaline, zinc hydroxide ppts. out together with absorbed residual impurities from the effluent. and the phases are subsequently sepd. by decantation.
Patent FR-2288696-A1 (FR)
Title: Device for powder fluidisation by pulsed air - contg. sheet of ductile matl. free flow of sluggish materials being ensured
Inventor: BRANGE LENNART BERTIL VILHELM
IPC: B65D88/72
Filed: 1974-10-21
Abstract: A device for fluidisation of the pulsation type for a powdery substance which difficult to move consists of a sheet of ductile materials which can be mounted against the walls of a receiver or a pipe, taking the shape of the wall, and a gauze permeable to air which lies loosely on the sheet and is connected to it at its edges, forming an air space between the sheet and the wall into which pulsed compressed air an be fed by a pipe connected to a hole in the sheet. The device is simple to install and can be supplied as a complete unit ready for mounting at any place required. It offers little resistance to powder flow, and is fully supported by the wall of the vessel and gives good fluidisation.
Patent FR-2293254-A1 (FR)
Title: Spray gun for marking bricks - has nozzle with shroud carrying stencil and synchronised with conveyor
Inventor: BROYARD CLAUDE
IPC: B05B15/04
Filed: 1974-12-02
Abstract: Apparatus for marking bricks with data regarding their manufacture and quality consists of an electrically operated spray gun (2) mounted inside a casing (3) with the jet (2a) directed into a cone shaped hood (6) towards a stencil (5) retained inside a collar (4) attached to the end of the casing. The attachments (8, 9) for the collar enable the stencil to be moved towards or away from the brick (13) to be marked. This unit may be positioned near a conveyor for the bricks, so that the spray gun can be operated in synchronism with bricks as they are stepped past, by an automatic control system which may employ switches operated by the movement of the bricks. The stencil may slide sideways in the collar as required, and the collar may include an outlet (11) for excess paint.
Patent FR-2294123-A1 (FR)
Title: Clamping grip for metal frames - has movable jaw and control lever on separate pins on fixed jaw
IPC: B66C1/64
Filed: 1974-12-10
Abstract: The clamping grip is particularly for lifting and assembly of metal frames, and has a movable jaw (1) on a first pivot pin (2) on a support (4) acting as the fixed jaw. The moving jaw works in conjunction with a control lever (5) on a second pin (7) parallel to the first, and also on the support. In one position of the lever the moving jaw is quickly locked against the work, and in the other it is instantaneously released. There can be a roller (8) on the lever on a spindle parallel to the pins, so as to act against a ramp (10) on the moving jaw, a spring (11) holding the lever in position.
Patent FR-2294824-A1 (FR)
Title: Split mould for plastic cartridge cases - for blank cartridges and ammunition for slaughter house pistols, industrial stud drivers, etc.
IPC: B29C49/64
Filed: 1974-12-18
Abstract: A moulding assembly for the mfr. of plastic cartridge cases is claimed. The case is made from a plastic, hollow cylinder with one closed end which sits in a cavity of the movable half of a split mould, the closed end being surrounded by an annular groove sunk into this half of that mould. The fixed half of the mould has a coaxial cylindrical cavity which sleeves the plastic cylinder when the mould is closed, and three pipe passages leading through the backing platen of the fixed half into the interior of the plastic cylinder, i.e. to carry respectively, (a) incoming hot fluid, (b) incoming cold fluid, nc) exhaust fluid via a pressure relief valve. The fluid is pref. compressed air or water under pressure. Suitable plastics are polypropylene, PVC, polyethylene and polyamides. Used in the prodn. of a plastic cartridge case with annular flared base for blank cartridges, small calibre live ammunition, ammunition for industrial stud drivers and for animal slaughtering pistols.
Patent FR-2295795-A1 (FR)
Title: Laboratory condenser column with cooling coil - has additional valved connections to space around the coil
IPC: G01N25/14
Filed: 1974-12-26
Abstract: A vertical laboratory condenser contains a cooling coil and has an upper opening, a blanked lower opening connected to the inlet tube and an intermediary connection that joins in by lateral tubing to the inlet tube. The bottom of the column has one valved connection and an external by-pass with valve around the inlet blanking plate. A lateral opening is provided in the inlet tube to the column. Used in experiments in an aromatic chemistry laboratory for e.g. obtaining a recirculation or doing distillation without reflux or under vacuum. It allows more than one operation to be carried out without changing the appts.
Patent FR-2297922-A1 (FR)
Title: Sinter, plant for iron ore - with agglomeration using steam obtd. by recovering heat from cooling fluid
Inventor: BOINAY GERARD
IPC: C22B1/20
Filed: 1975-01-15
Abstract: Method of agglomerating iron ore for packing on a sinter belt consists of preparing a charge comprising a moistened mixture of fine ore and solid fuel, depositing the mixt. on an open mesh conveyor belt, and heating, the mixt. being preheated before being deposited on the belt with steam which provides not only heat but also part of the water necessary to moisten the charge, the balance being provided by mixing with water in a drum. The sinter is used to charge blast furnaces. Process reduces the "water-front" phenomenon, since part of the moisture is only ever present as steam, since it is not allowed to condense before the ore is sintered. Hence the yield of charge is increased.
Patent FR-2299063-A1 (FR)
Title: Vertical vibration fluid filter - has inclined filter plate stacks on vertical drainage tubes
IPC: B01D29/00
Filed: 1975-01-30
Abstract: A vibrating fluid filter of the vertical type has two vertical drainage tubes on which the filter insert discs are carried between spacers. The filter inserts are inclined towards the central discharge opening at the bottom of the tank; there edges lie above the discharge opening. A vibrator is attached to a crosspiece at the top which supports the drainage tubes. This ensures an even deposn. of the solid layers on the filter inserts; the layers are securely held and can be flushed out prior to removal.
Patent FR-2262825-A1 (FR)
IPC: G04G13/02
Filed: 1975-03-03
Abstract: A description is given of an alarm clock which is battery-powered (normally being fed by a 1.5 V cell), in which for the purpose of illuminating parts of the clock, in particular the clock face, at least one semiconductor light-emitting diode (LD) is used. The inductive rebound/kick-back voltage of the coil (L) of the alarm signal transmitter of the clock is used to feed the light-emitting diode.
Patent FR-2264274-A1 (FR)
Title: Balancing equipment for vehicle wheels - with automatic positioning for the balancing operation during reduced speed
IPC: G01M1/06
Filed: 1975-03-11
Abstract: The equipment measures the angular position and magnitude of the unbalance and rotates the wheel to a position in which balancing can be effected. A d.c. motor is used for both measurement and positioning. A switch is used to disconnect the motor from a supply voltage and energise a brake and to connect the motor to a position control unit when a given reduced speed is reached. The position control unit is controlled both by the unbalance measuring device and as a function of the angular position of the wheel or the speed of the motor. One position measuring device is responsive to deflections 180 deg. position and the other 180 deg. negative to the null position.
Patent FR-2311759-A1 (FR)
Title: Biological degradation of phenols in industrial effluent - using novel strain Nocardia Sp B87 as powder
Inventor: PILON R
IPC: C12N1/20
Filed: 1975-05-23
Abstract: Degradation of solns. contg. phenols comprises using a strain of Nocardia named Nocardia Sp. B 87 in the form of dehydrated cells, which can be revived. Process is applied to treatment of phenol (derivs.) in effluents from chemical industry, petrol refineries, coke mfg., tar distilling, plastics and explosive mfr. The strain Nocardia Sp. B87 is novel. Oxidn. is generally used, but this is costly. Previously strains of Pseudomonas have been tried, but with a phenol content >40-50 mg/1 the time required is too long. The above process enables a much faster treatment and phenol contents =3 g/1 may be treated.
Patent FR-2279669-A1 (FR)
Title: Preventing polymerisation of hydrogen cyanide - in gaseous form or in gas mixts., by addition of carbon dioxide
IPC: C01C3/06
Filed: 1975-07-22
Abstract: Carbon dioxide is used as additive at pref. >0.1 vol. % for preventing polymsn. of gaseous hydrogen cyanide, either alone or in ammonia-free gas mixts. contg. hydrogen cyanide. Efficient stabilisation is obtd. at low cost. No corrosion of mild steel equipment occurs. Stabilisation is effected in the presence of a wide range of materials.
Patent FR-2285579-A1 (FR)
Title: Auxiliary switch for appts being serviced - has sockets for main switch contacts, and control lever
IPC: H01H37/00
Filed: 1975-09-16
Abstract: An auxiliary switch for heating equipment, burners, pumps etc., which must be kept in operating while a defective control switch is removed for servicing, consists of a flat base (19) with holes (14) for securing screws. The cover of the main switch fits over this base so that its contacts then fit into corresponding contact holes (17) in a raised port (16) of the auxiliary switch, connections being suitably made to the control system for the equipment. When the main switch requires to be removed for servicing, a switch-over lever (22) is operated to transfer the connections to the auxiliary switch. Locating pegs (25) on the base, and the shape (24) of the raised part effectively locate the main switch.
Patent FR-2346149-A1 (FR)
Title: Self supporting packaging cover - comprises non-cellulose cloth and cellulose cardboard bonded by bitumen
IPC: E04D5/02
Filed: 1975-10-17
Abstract: The self-supporting cover or shingle-board has one or more cloths of non-cellulose fibre, and a section of cellulose cardboard, preferably with non-fillerised bitumen. The cardboard can be a cellulose-base plate saturated with bitumen or pitch, and the cloth can be of glass or asbestos fibre, rock wool, or any organic non-cellulose fibre. It can be added at any stage in the manufacture of the cardboard, i.e. when moist, after painting or the application of the finishing coat, either to the surface or to the inside. The cloth can be secured to the cardboard by glue, particularly bituminous glue, or a suitable binder, or by interweaving the fibres.
Patent FR-2381318-A1 (FR)
Title: Radar signal processor for echo signal deviation reduction - uses intermediate frequency sampling circuit containing capacitors and buffer
Inventor: MORRISON JOHN MALCOM
IPC: G01S7/292
Filed: 1975-12-12
Abstract: A radar signal processing device is designed for reduction of the magnitude of the apparent relative variation between the returned signals and a range defined as the nominal for return signals. It contains units for analysis of a received echo-signal over a number of successive intervals, displays for showing the echo signal for each interval, and further displays showing successive filtered versions of the received echo-signals. The echo signal is successively applied to a number of capacitors via a smoothing circuit and the capacitor outputs fed to a buffer. Store in a time series related to the intervals of analysis. The interval repetition rate is faster than the scanning rate but slower than the radar pulse repetition rate.
Patent FR-2310584-A1 (FR)
Title: Compact small screen projector for endless film cassettes - uses three mirrors to contain lengthy light path in box of limited size
Inventor: FREISLEBEN REINHARD
IPC: G03B21/10
Filed: 1976-04-20
Abstract: The projector gives an 18 x 13cm picture from a Super - 8 cassette, and is contained in a 34 x 32 x 16 cm box. It uses three mirrors to reflect the image coming from the lens round the box on its way to the viewing screen, the light path being folded so as to maximise the magnification obtainable in the comparatively small space. The light source is mains-operated lamp and condenser lens. A small mirror - which projects into the cassette and must swing aside when a new cassette is inserted - reflects the light through the film and on to the lens.
Patent FR-2348073-A1 (FR)
Title: Car trailer tow ball mounting - uses mortise or dovetail slide fittings to enable ball removal without tools
IPC: B60D1/52
Filed: 1976-04-14
Abstract: The car trailer coupling reduces protrusion by allowing the drawgear to be dismounted without the use of tools. The support of the towing ball is arranged via both vertical and horizontal motion. Alternative forms of mounting are based on the use of mortise joints. The mounting can be fixed by stops or other devices. The mortise fittings can use slots of rectangular trapezoidal or curved section, or a double dovetail arrangement. The ball is carried on one half of the mortise joint.
Patent FR-2354967-A1 (FR)
Title: Flocculation of effluent suspensions - by agitation and aerobic fermentation
IPC: A23K1/14
Filed: 1976-06-14
Abstract: Flocculation of effluents with a high suspended solids content (SSC) is carried out by mechanically agitating the effluent in the presence of free microorganisms while maintaining an excess of dissolved O2. Process can be used to treat effluents from the agricultural and food industries (esp. wine lees). The flocculated solids can be used to produce animal feeds. Process avoids adding special flocculating and/or pH-adjusting reagents, so the flocculated solids are not contaminated by such reagents. The COD of the clarified effluent is reduced.
Patent FR-2356810-A1 (FR)
Title: District heating system using power station waste heat - uses condenser cooling water fed through two groups of buildings in series
IPC: F24D11/00
Filed: 1976-06-28
Abstract: The condenser cooling water of an electricity power station flows through the condensers of two generating units in series. It is then pumped to a storage reservoir which is equipped with emergency or auxiliary burners. From the reservoir, the water is taken by a single flow pipe to the radiators of buildings from which it flows to the radiators of a second group of buildings before being discharged to waste. The power station condensers work at normal temperatures for maximum efficiency. The radiators in the first group of buildings have larger than normal surfaces to give adequate heating at low flow temperatures. The radiators of the second group of buildings are sized to work at lower temperatures than those of the first.
Patent FR-2367399-A1 (FR)
Title: Central telephonique a commutation temporelle comportant un dispositif d'emission de signaux de service
Inventor: LAGER JEAN-PAUL
IPC: H04M3/00
Filed: 1976-10-05
Abstract: Le dispositif pour émettre, sur des voies multiplexées dans le temps, différentes catégories d'informations numériques est formé d'ensembles de circuits dont au moins un est affecté à une catégorie d'informations, dont les entrées de chacun sont reliées, par l'intermédiaire d'une première ligne commune, aux sorties d'un circuit d'horloge fournissant des signaux de repères temporels aux différentes voies et dont les sorties de chacun sont reliées, par l'intermédiaire d'une deuxième ligne commune à un circuit de sortie; ces ensembles de circuits sont munis d'un circuit de mémoire pour contenir lesdites informations numériques et d'un circuit de décodage de signaux repères temporels pour commander la lecture du circuit mémoire. Applicable en téléphonie.
Patent FR-2332399-A1 (FR)
Title: Prefabricated, transportable shower cubicle - with removable panels and load bearing posts round bottom part between frames (NL 23.5.77)
IPC: A47K3/28
Filed: 1976-11-18
Abstract: The transportable shower cubicle is designed for rapid assembly from prefabricated components. The lower part, housing a shower basin, and, perhaps, service installations, incorporates bottom and upper frames both assembled from shaped-section units, with intervening panels sealing off the interior space. The lower and upper frames of the lower part are held at an interval by load-bearing posts, the panels being simply cladding units with no load-bearing function, easily removable from outside. The posts, pref. at the corners, may also serve to connect the abutting ends of the frame units. For servicing or repair work, the interior is readily accessible without dismantling the cubicle.
Patent FR-2376178-A1 (FR)
Title: Synergistic heat stabilising compsn. for halogenated polymer esp. PVC - comprises tin or antimony organic cpd., acid acceptor, chelating agent and lubricant
IPC: C08K5/59
Filed: 1976-12-31
Abstract: Heat stabilising compsn. for halogenated vinyl polymers (esp. PVC) comprise (a) a cpd. SmX4 or SbX3, where X are organic cpds. linked to the metal atom by elements other than C; (b) an HCl acceptor; (c) an organic chelating agent; and (d) a lubricant. The compsn. is synergistic and enables the SnX4 or SbX3 cpds. to be efficiently used by neutralising the harmful effects of metal chlorides generated during decompsn. of the polymers. Pref. X is the residue of a carboxylic acid, a semi-ester thereof or a mercaptoaliphatic acid ester. Pref. Sn cpds. are Sn tetraisooctylthioglycolate (I), tetraisooctylmercaptopropionate, tetrastearate or tetraisooctylmaleate. Pref. Sb cpds. are Sb triisooctylthioglycolate or trilaurylmercaptide. The HCl acceptor is suitably the (hydr)oxide or salt of a mono- or bivalent metal which can be cleaved by HCl, or an amine such as alpha-dodecylindole. The cleavable metal salt is pref. a neutral or superbasic carboxylate of an alkali(ne earth) metal, Zn, Cd and/or Pb. The chelating agent may be a carboxylic acid, a polyol, a polyamine, an organic phosphite, nitrilotriacetic acid, EDTA ore derivs. thereof.