baber/WOPTO huggingface dataset:
Patent FR-2291351-A1 (FR)
Title: Closed cycle thermodynamic machine - has two identical cylinders connected by hot and cold heat exchangers
IPC: F02G1/04
Filed: 1974-11-14
Abstract: The machine consists of an identical first (a) and second (b) piston and cylinder working opposite phase to each other from a common crankshaft. The compression chambers are connected to each other by pipes (6, 7) one of which contains a heat exchanger (Ec) receiving heat from a heat source and the second pipe contains a heat exchanger (Ef) colled by a cold source. The two pipes joining the first chamber are closed by valves (8, 9) regulated by a rocker and cam gear (12, 13) from the crankshaft (5) and the pipe unions to the second chamber are closed by one way flaps (10, 11). The one flap (10) allows a flow from its compression chamber only when the pipe pressure is less than that of the chamber when it then flows to the first chamber 'A'. A flow from the first chamber (A) to the second chamber (B) is conditioned by the second return flap (11) which allows a flow to the compression chamber 'B' only when the pipe pressure is greater than the compression chamber.
Patent FR-2292965-A1 (FR)
Title: Bourdon tube pressure gauge for fire extinguisher - has filled tube sealed by thin membrane at inlet connected to extinguisher
IPC: G01L7/04
Filed: 1974-11-29
Abstract: A Bourdon tube manometer fitted to a fire extinguisher has the tube connected to an inlet conduit, both being filled with a non-corrosive fluid, a thin sealing membrane preventing the material under pressure in the extinguisher from entering the conduit. The gauge (1) has an inlet orifice (2 which is of larger diameter than that of the conduit (4) leading to the Bourdon tube. In this large diameter orifice is located a cover (5) of a flexible material to which a thin flexible membrane (6) is attached. This seals the orifice, permitting the conduit (4) to be filled with noncorrosive liquid. Deformation of the membrane under pressure causes a pressure on the liquid to be transmitted to the gauge pointer.
Patent FR-2251337-A1 (FR)
Title: Air regenerating filter contg. chemicals and drier - with two directions of flow to suit climate and vary oxygen prodn.
IPC: B01D46/00
Filed: 1975-01-29
Abstract: An air regeneration filter comprises an oxygen-emitting and CO2-binding chemical and a drying agent, contained in a vessel with friction-fit end caps, and is intended esp. for attachment to a circulation fan. The filter permits two directions of flow and is marked externally to show the correct direction for the climatic conditions. The drying agent, near one of the vessel openings, constitutes 10-50(25-30)% of the total contents. Pref. drying agent is alumina gel, pref. in the form of 2-10 (4-8) mm dia. spherical grains. Device is used for air regeneration in closed, unventilated spaces. Oxygen prodn. can be regulated to suit demand.
Patent FR-2300354-A1 (FR)
Title: Presensitised lithographic printing plates - with layer of photosensitive P-aminobenzene diazonium salt with long chain alkyl or alkoxy gp. on the amino atom
IPC: G03F7/016
Filed: 1975-02-04
Abstract: Presensitized lithographic printing plates contain a layer of a photosensitive p-amino-benzene diazonium salt (I) substd. on the N atom of the amigo gp. by a 7-22 C alkyl or alkylcarbonyl gp. Plates have good sensitivity and after exposure the unexposed portions are easily washed off to leave a ready to use printing plate with hydrophilic areas and lipophilic ink receptive areas. Pref. (I) has the formula:- where R1 = H or 1-4C alkyl R2 and R3 = H, 1-4C alkyl, 1-4c alkoxy, halogen, -N3 -COOH, -SO3H -NO2, or -N+ = N X-, or R2 and R3 together form a condensed ring which is opt. substd. by one or two of the above gps., Y = -CH2- or -CO-, n = 5-20 and X- = an anion.
Patent FR-2311258-A1 (FR)
Title: Oil fired central heating boiler - has water tubes embedded in refractory walls of combustion chamber
IPC: F24H7/02
Filed: 1975-05-16
Abstract: The boiler has a rectangular metal casing lined on the inside with mineral wool insulation (18). On the inside of the mineral wool are slabs (20) of refractory material which form the walls of a rectangular combustion chamber (21). Water tubes (27) are embedded in the refractory walls and run between a return header (28) and a flow header (29). An oil burner (31) in the lower part of the front of the boiler projects through the wall and fires into the combustion chamber. Bridges (32, 33) of refractory material in the upper part of the combustion chamber project partially across it to compel the products of combustion to follow a longer sinuous path through the chamber and thus prolong contact with the walls containing the water tubes.
Patent FR-2272448-A1 (FR)
Title: Voting system with card readers for vote record cards - provides simple man-machine dialogue enabling correction of cards
IPC: G06Q50/00
Filed: 1975-05-22
Abstract: The system employs card readers in which vote record cards filled in by voters are inserted for analysis by a central counting system. Each card reader has a programmable logic unit which detects any cards with illegal markings etc., and rejects these cards to inform the voters can also be processed by the card reader and these cards are specially tagged so that even if they are illegally completed the machine does not reject them. The machine can be used for candidate and/or office voting and "slate voting".
Patent FR-2272709-A1 (FR)
Title: Separator for multi-stage liquid extractor - having perforated plates on pure liquid streams to prevent re-entrainment
IPC: B01D11/04
Filed: 1975-05-28
Abstract: Multi-stage liquid-liquid extractor has series of extraction stages each with a liquid separator and provision to recycle and remix part of the extracting phase as in the parent patent. The pure phases are drawn out of the separator through perforated screens with holes of dia. 3-20 mm, pref. 5-15 mm. The holes can be uniformly distributed across the surface or the hole spacing near the separator lid and base can be closer. Similarly the hole spring on the part of the plates closest to the horizontal centre can be wider. The plates should be inclined at an angle in the range 5-45 degrees, pref. 10-25 degrees to the pure liquid surfaces.
Patent FR-2313000-A1 (FR)
Title: Oven with visible rotating spits - has partly glass front and removable spit holder with hickory pellet held against heating element for smoking
IPC: A47J37/04
Filed: 1975-06-02
Abstract: The oven has an insulated metal casing (11, 12, 14) with the front halves (15, 16) of the sides in glass. The front doors (17, 18) are also glass. Heating is by electric elements (E) in the rear portion (10). The spits are sprung between two rotating discs, each mounted on half spindles (B, C) and coupled together to form a spit holder. This can be removed for cleaning. At the rear is a holder (F) for a pellet of hickory wood. This fits over an air inlet and the pellet is pressed against one of the elements by a spring blade. The wood is burnt and the smoke used for flavouring.
Patent FR-2312777-A1 (FR)
Title: Ferromagnetic materials inspection system - has reference component and test component, both subjected to inductive magnetic field
IPC: G01N27/72
Filed: 1975-05-30
Abstract: The component (7) under test and a reference component are subjected to the same alternating field which produces a variable flux in each component depending on its magnetic permeability. The variation of the flux produces an induced electromagnetic voltage. The two voltages produced are compared and the third harmonic of the difference voltage (19) is examined. The inductive alternating magnetic field is chosen for operation within the linear region of the magnetisation curve of the reference component (2). The associated equipment includes a conveyor belt and two relays (24) one of which actuates a system which separates the component inspected if it fails to produce a threshold signal level.
Patent FR-2274566-A1 (FR)
Title: Auto-aerating plant for drinking water supplies - has centralised battery of aerators with common dispersal conduit
IPC: E03C1/10
Filed: 1975-06-11
Abstract: Auto-Aerating plant for drinking water supply pipes, is designed to centralise the aeration of supply e.g. for a multi-storey building, and constitutes a battery of aerators traversed by rising mains and featuring a common drainage collection and dispersal conduit. Each aerator embodies a means of collecting the water produced by the process with means of extraction and limitation. Pref. the limiter is uniquely common to all aerators, and comprises a float valve with poppet valve hanging float and closes onto its sealing seat either when aerators penetrate the drainage conduit or when water overflows the supply pipes. The float embodies lateral channels which with a counter surface forms an annular groove resting freely against the sealing seat when the float is in the closed position.
Patent FR-2319556-A1 (FR)
Title: Discharge system for silo - has lever operated rotary plate cooperating with liq. seal supported by flange plate at discharge opening
IPC: B65D90/58
Filed: 1975-07-31
Abstract: The silo discharge cone is fitted with a flange from which hangs the flange plate and which supports the lip seal. This seal prevents leakage of the contents of the silo when the valve is closed. The flange plate is extended on one side of the silo to carry a vertical spindle located by a spring and carrying an operating lever. The other end of the spindle carries a damper plate. When the lever is lifted out of its gate, it may be rotated through an angle which will cause the plate to rotate through the same angle and allow the products in the silo to discharge.
Patent FR-2283831-A1 (FR)
Title: Thermosealable cover for plastics or carton containers - comprises aluminium sheet coated with pref ethylene vinyl acetate polymers of different melt indices
Inventor: MAINGUENEAU JEAN-MARIE
IPC: C09J7/35
Filed: 1975-07-22
Abstract: A thermosealable cover for plastics or paraffin coated carton containers used e.g. for packaging fluid foodstuffs such as yoghurt, is made of a thin aluminium sheet coated witha mixt. which is thermosealing at 120-130 degrees C and comprises a microcrystalline was modified by >=2 chemically similar polymers of different melt index (m.i) one polymer pref. having an m.i of 15-30 (Brookfield, NF T51-210) and the other an m.i of 300-500. The cover s easy to fix, provides efficient and durable sealing, can be easily removed and can be used with conventional containers.
Patent FR-2328850-A1 (FR)
Title: Double piston for IC engine - with trapped air cushioning shock loads
IPC: F02F3/26
Filed: 1975-10-21
Abstract: The double piston for an internal combustion engine consists of an inner piston (AL) which is attached by a gudgeon pin (AX) to the end of the connecting rod. The inner piston (AL) runs on a linear (CHE) fitted to the bore of the outer piston. A sealed space (CHM) is formed above the inner piston (AL) and a second sealed space (ESP) is formed below the inner piston by a screwed ring. During the compression stroke the outer piston is pushed downwards onto the inner piston. During the exhaust stroke the outer piston moves upwards to expel the exhaust gas. The air trapped in the sealed spaces (CHM) (ESP) cushions any shock loads.
Patent FR-2550347-A1 (FR)
Title: Improvements to pulsed Doppler radars
Inventor: COLIN JEAN-MARIE HENRI
IPC: G01S13/22
Filed: 1975-10-29
Abstract: The invention relates to a pulsed coherent Doppler radar operating at a medium frequency pulse repetition rate. The pulses are transmitted according to a repeating sequence consisting of b blocks of recurrent pulses. The repetition frequencies of the blocks are randomly distributed over the range of medium repetition frequencies. The radar receiver includes a device for eliminating fixed echoes and an arithmetic data extractor matched to the transmitted signals. Application to airborne surveillance radars.
Patent FR-2290699-A1 (FR)
Title: Diffusion transfer colour photographic prod. - contg. acrylic acid and alkyl acrylate copolymer neutralising layer for developer
IPC: G03C8/52
Filed: 1975-11-05
Abstract: A diffusion-transfer colour photographic prod. comprises (a) a support coated with an Ag halide emulsion associated with a colour image forming material, (b) a colour image receptor layer, (c) means for introducing an alkaline treatment compsn. into the prod. and (d) a neutralisation layer for neutralising the treatment compsn. after a pre-determined period. The prod. also contains an Ag halide developer and is characterised in that (d) comprises a copolymer of a lower alkyl acrylate and 50-95 pref. 60-75, wt.% acrylic acid. The copolymer does not have to be crosslinked to be insolubilised since it has inherent insolubility in water while bein permeable to basic solns. It can be applied as a soln. in org. solvents, simultaneously with the retarding layer to which it adheres well. It does not tend to creep or curd.
Patent FR-2294112-A1 (FR)
Title: Apparatus component separating mechanism - has hopper with outlet larger than smallest dimension of individual component
IPC: B07C5/04
Filed: 1975-12-12
Abstract: The machine separates components e.g. springs or screws tending to stick together, having a storage hopper for the unsorted components and transporter freeing them from each other and delivering them via an outlet to a discharge mechanism. The diameter of the outlet (6) from the hopper (5), and of the track along which the items are conveyed by the transporter (7, 8) from the hopper to a collecting hopper (10), in one direction at least, is several times greater than the smallest dimension of the component. This allows several components to pass at the same time. The collecting hopper accommodates a large number of separated but unsorted components, and forms the discharge mechanism or is connected to a separate sorting mechanism.
Patent FR-2339414-A1 (FR)
Title: Combination nozzle for fire fighting hose - has outlet giving water jet and valve for changing over to alternative water spray outlet
IPC: B05B1/16
Filed: 1976-01-27
Abstract: The fire fighting nozzle has two alternative outlets, one giving a water jet (37) and the other a water spray (43). Selection is by means of a valve (32) manipulated by a turnkey (52). The water enters the rear of the nozzle and is distributed through a stop valve. This is operated by a trigger in the handle. After passing through the barrel, the water is directed to one or other of the outlets, depending on the position of the valve plug. This has a straight-through passage (33) to the jet and a radial passage (34) communicating with the spray when the plug is turned through 90 deg..
Patent FR-2300634-A1 (FR)
Title: Pliers for bending sheet metal edge - has jaw configuration and stop to ensure uniform bending of edge
IPC: E04D15/00
Filed: 1976-02-12
Abstract: The pliers for bending the edge of a sheet metal plate have jaws for bending the plate at the required angle and given width. This tool can be used for bending of the curved ends of sheet metal gutter profiles when the jaws are suitable curved. The inner faces (7, 8, 9, 10) of the jaws (1, 2) form in almost closed state a gap in the shape of the bent edge of the plate. A step (17) forms the stop for the plate placed between the jaws. This stop ensures that the plate edge is bent to the same extent in each new bending operation. The point (16) of the lower anvil jaw (2) creases the metal and pushes it against the position stop before folding it round at an acute angle (a) to itself.
Patent FR-2340408-A1 (FR)
Title: Self propelled vibrating plate compactor - has two rotary eccentrics in housing which is pivoted to vary propulsive vector of vibratory force
IPC: E02D3/074
Filed: 1976-02-06
Abstract: The self-propelled vibrating plate (2) compactor is vibrated by two rotating eccentrics, mounted in a housing (9) which can be pivoted relative to the machine. The operator can vary the angle or the housing (9) by means of a control bar, thus altering the inclination of the resultant of the vibratory forces. In this manner the horizontal vector of the vibratory forces is increased as desired and used to propel the vibrator. The two eccentrics are mounted on parallel axles (01, 02) and rotate at the same speed. The inter-related angular settings of the eccentrics ensure that the resultant of the vibratory forces passes perpendicularly through the housing (9) fulcrum (0).
Patent FR-2302192-A1 (FR)
Title: Continuously operating multi stage fruit press - has slotted cylinders mounted at right angles to one another
IPC: B30B9/06
Filed: 1976-02-27
Abstract: The press is used for grapes, berries etc., and consists of two or more cylinders (1, 2), the axes of which are at an angle to one another. Pistons which are driven by cranks, slide in the cylinders. Each cylinder has a slot, the length of which is approx. equal to the stroke of the piston. The liquid which has been pressed out of the fruit flows through the slot into a trough. The first cylinder is connected with a funnel which is fed by gravity and is provided with an arrangement which forces the fruit into the cylinder. The end wall of the first cylinder consists of the side wall of the second cylinder. This arrangement is repeated until the last but one cylinder.
Patent FR-2342910-A1 (FR)
Title: Cap for containers with neck - has circular cap which can be used for containers having oval neck
Inventor: JANEY GUY
IPC: B65D41/28
Filed: 1976-03-03
Abstract: The cap has an outside skirt (2), a crown (3) and a central dish (4) which fits inside the neck of the container. This dish has cylindrical walls (5) and a bottom (6) joined at an angle (7) so that the cap fits easily into the neck. The bottom (6) has an additional projecting cylindrical wall (12), with a thickness approximately twice that of the cylindrical walls (5) of the dish, which provides sufficient rigidity to the cap to ensure that with an oval necked container the cylindrical wall (5) of the dish is always in contact with the interior wall of the neck. The cap clips onto the neck of the container, grooves in the cap (10) acting with peripheral ribs (9) on the neck.
Patent FR-2347051-A1 (FR)
Title: Swine fever immunogenic agents and vaccines - prepd. by inactivation of pathogenic virus with an alkylating agent pref. glycidaldehyde without denaturation of the virus
Inventor: DHENNIN LOUIS
IPC: A61K39/187
Filed: 1976-04-09
Abstract: Prepn. of immunogenic agents against swine fever and vaccines containing them, comprises inactivation of cultures of swin fever pathogenic virus using an alkylating agent. The nature and concn. of the agent are chosen so that the kinetics of the inactivation reaction can be controlled and inactivation may be completed without causing denaturation of the virus; the inactivation reaction is then stopped by neutralising the excess alkylating agent. The use of an inactivated virus avoids the risks of development of modified strains of the virus, which may occur when living virus vaccines are used. The process leads to an effective vaccine, free from all pathogenic risk and having well defined, reproducible characteristics. The pref. virus used is known as A-19 isolated by Laboratoire Central de Recherches Veterinaires at Maisons-Alfort.
Patent FR-2309193-A1 (FR)
Title: Dish washing machine for commercial applications - using combined action of water and pulsed air to wash and dry
IPC: A47L15/23
Filed: 1976-04-30
Abstract: The base (6) forms a tray and has a rotating spray bar (8, 9) for distributing the water. The cover (1), fitting over the contents in a basket, has straight sides (2, 3) and a recess (22) in one corner, which is separated from the cover by a wall (22') in which is a slot (21). This recess holds an electric motor, with one end of its spindle driving the water circulating pump and the other end having a fan. This fan drives air through the slot, over a baffle plate and gives to the water an improved washing action. A cover (5'), with louvres, fits over the motor unit.
Patent FR-2311164-A1 (FR)
Title: Composite window or door frame channel - has two interlocking bars of differing materials separated by insulation layer
IPC: E06B3/273
Filed: 1976-05-07
Abstract: A composite section for window and door frames consisting of two interlocking bars which can be made of different materials, separated from each other by heat insulating material. One bar (2) is hollow, and fits in a recess in the other (1) with the insulation between. The insulation is stepped where it is in line with the outside edge (6) of the outer bar (1). This forms a pocket into which fits a flanged edge or a set of teeth (8) extending from the edge of the outer bar. This retains the insulation in the outer bar.
Patent FR-2317141-A1 (FR)
Title: Control valve for front axle air brakes - has differential and auxiliary pistons for master cylinder connection on failure
IPC: B60T8/18
Filed: 1976-07-02
Abstract: A vehicle pneumatic braking system has a control valve for the front axle with compensation for axle height under loading, with one port (26) connected to the line for operating the rear axle brakes, another port (30) connected to the front brakes and a third port (22) connected to the foot operated master cylinder and operating so that in case of failure, presure is applied from the latter cylinder. This control valve has an auxiliary piston (72) controlling the port (26) to the rear brake line, and a differential piston with a larger piston (46) mounted in front of a smaller piston (50), on the same hollow shaft, with a system of apertures (54, 58) interconnecting the chambers between these pistons.
Patent FR-2358056-A1 (FR)
Title: Procede et dispositif de synchronisation de l'horloge du recepteur d'un systeme de transmissions de donnees en modulation psk
Inventor: CHOQUET MICHEL
IPC: H04L7/02
Filed: 1976-07-09
Abstract: Pour synchroniser l'horloge 11 du récepteur d'un système de transmission de doré synchrones utilisant la modulation PSK, on calcule le signal de réglage :
Patent FR-2362108-A1 (FR)
Title: Methacrylic acid prodn. - from oxidative dehydrogenation of isobutyric acid in the presence of a catalyst and carrier
IPC: C07C51/377
Filed: 1976-08-18
Abstract: Methacrylic acid is produced by subjecting isobutyric acid to oxidative dehydrogenation in a gaseous phase in the presence of a catalyst contg. heteropoly-acid of formula: H3+xMo12-x-yWyVxPO40, (where x is 0,1,2 or 3; and y is 0,1,2 or 3; anx x + y 5) and/or its reduced type, and a carrier contg. a relatively large amt. of silicic acid so that the water absorption is >=60% is employed. Examples of carriers contg. relatively large amt. of silicic acid are silica-gel, diatomaceous earth. The ratio of isobutyric acid to oxygen = 0.1-10, concentration of isobutyric acid = 0.1-10 vol. %, temp. is 200-450 degrees C and LHSV - 100-8000 hr-1. The isobutyric acid conversion rate is 56.0-60.2%, methacrylic acid selectivity rate is 70.0-65.0%.
Patent FR-2366979-A1 (FR)
Title: Tractor and semi-trailer cross wind drag reducing system - has two angle section stabilising elements connected to front face of semi-trailer
IPC: B62D35/00
Filed: 1976-10-06
Abstract: A device for reducing aerodynamic drag due to cross-winds on tractor-semitrailer vehicles, has two stabilising elements (10) arranged symmetrically on either side of the vehicle, and each having a right-angle cross-section, one face (11) being connected perpendicularly to the front face (3) of the semitrailer and the other face (12) extending outwardly parallel to the front face (3). The length of the face (11) increases from the base to the top, and is between a third and a half of the distance (L) between the cab (1) and the face (3). The width (a) of the face (12) is a third of the mean length of the face (11). The spacing (b) of the faces (11) is between 30 and 60% of the width (d) of the body (2). The base of each element (10) is level with the lower part of the body (2). The height of each element (10) is between 70 and 90% of the height of the body (2). The join between the faces (11, 12) is radiused.