baber/WOPTO huggingface dataset:
Patent FR-2237920-A1 (FR)
Title: Polymethyl-styrene/polydiene block copolymers - for mfr. of rubber articles, imitation leather, adhesives, cables building components, etc.
IPC: C08F297/04
Filed: 1973-06-29
Abstract: A heat-stable block copolymer, of type ABA, is mfd. by polymsg. (in bulk or in a hydrocarbon solvent, e.g. toluene) alpha-methylstyrene using a Li-org. cpd., e.g. sec BuLi at 0.40 degrees C to give a 'living' poly-alpha-methylstyrene block 'A'; block copolymsg. a diene hydrocarbon (e.g. 1,3-butadiene, isoprene) onto the 'living' poly-alpha-methylstyrene block 'A' using 4-methylstyrene or a hydrocarbon solvent as polymsn. medium at 40-80 degrees C, to give a copolymer type AB; and block(sic) copolymsg. alpha-methylstyrene onto the resulting 'living' block copolymer AB, in an alpha-methylstyrene or hydrocarbon medium at not >40 degrees c. The prod. has superior elasticity, tear strength and low-temp. behaviour, and has low 1,2-content which 1,3-butadiene is used as diene component.
Patent FR-2214013-A1 (FR)
Title: Road marking material - contg. filler and thermosetting resins, reinforced by fibres and starch
IPC: E01C11/16
Filed: 1973-10-25
Abstract: The fibres are esp. glass fibres and are present in =1 wt.%. They are millimeters long and the starch particles are hundredths of millimeter in size. A 3-dimensional network is formed which improves cohesion, abrasive strength and fracture resistance.
Patent FR-2263461-A1 (FR)
Title: Combustion aid cylinder placed in flames - has external helical fins and absorbs and stores heat
IPC: F23D5/12
Filed: 1974-03-04
Abstract: The devices increases the efficiency of combustion by bringing the combustion gases in contact with a hot surface. The pre-heater consists of a cylinder (1) made of suitable material or refractory material. The cylinder is fitted with helical fins (2). The cylinder is hollow, and one end is closed except for a discharge orifice (3) and rests on a base (5). The pre-heater is placed in the furnace. The cylinder becomes hot, and increases the combustion efficiency of the gases coming into contact with the inside of the cylinder.
Patent FR-2263934-A1 (FR)
Title: Control system for motor driven boat helm - maintains motor speed constant as drive engine speed varies
IPC: B63H25/30
Filed: 1974-03-15
Abstract: The mechanism is intended to give constant rudder speed at any engine speed. The hydraulic system consists of a hydraulic jack which operates the rudder. The jack is connected to a distributor and hence to a hydraulic pump and a tank. The distributor is operated by the steering wheel. The pump is controlled by the engine shaft of the main engine which also drives the propeller through a peed reducing gear. The pump has a variable output and a control is connected to the main engine control in such a way that if the main engine revolutions drop the pump output is increased to remain constant.
Patent FR-2272803-A1 (FR)
Title: Foldable drying cover for concrete elements - has lazy-tongs type frame with support rollers
IPC: F26B25/06
Filed: 1974-05-30
Abstract: The cover is for table mounted precast concrete during steam curing etc. and has a scissors frame bearing insulating cover panels, and is designed to afford compact cover storage whilst not in use, and not require lifting gear. The unit folds in the longitudinal sense with the scissors frame linking fore and aft vertical faces and the fore scissor hinge is carried on a vertical member which is supported by a ground bearing roller. Roof panels are of glass wool sandwiched in ribbed sheet steel, and hinge onto traverses at the scissor hinges.
Patent FR-2275934-A1 (FR)
Title: Time delayed static switch - two thyristor circuit fed from capacitor voltage divider supplied from rectifier AC source
IPC: H03K17/96
Filed: 1974-06-18
Abstract: A thyristor time delayed static switch operates as a relay between a load to be controlled momentarily, and an alternating current supply source. A control circuit is connected to the trigger of the thyristor to control it during a time determined by the value of its constants. The trigger control circuit has a constant current supply source furnished by a voltage capacitive divider fed from the rectified current of the alternating current supply source. The thyristor control voltage is taken from the middle of the two capacitors of the capacitive divider. An auxiliary thyristor is connected to the terminals to capacitor so as to discharge it by contact effect on its trigger.
Patent FR-2280186-A1 (FR)
Title: Switching matrix with magnetically controlled contacts - has alternating source supplying winding rows and direct source supplying columns
IPC: H01H67/26
Filed: 1974-07-26
Abstract: Switching matrix has magnetically controlled contacts for use in telephone exchange installations. It can function as the commutator system for the circuit incorporating the speech channel and transmission path for a discrete information signal. The matrix consists of rows and columns of electro magnets each with two coils operating a contact. There is a common input for each row and one for each column each derived from its own source. The first source (8) supplying the rows produces alternating current and the second source (10) supplying the columns produces direct current. The selected windings (2, 3) for the rows and columns on the particular magnetic rail (1) will be excited simultaneously by an alternating and a direct field. This produces a magnetisation curve without hysterises.
Patent FR-2279955-A1 (FR)
Title: Liquid lifting pump - has tubes for air supply and removal and ball valves preventing liq. falling
IPC: F04F1/02
Filed: 1974-07-26
Abstract: The pump has tubes (1, 2, 4) removing the air or causing its entrance, while balls (3, 6) prevent the liquid from dropping again in the tubes. The tube for immersion in the water can be welded to a cylinder, and a further tube can also be welded to the latter, to take the water still higher. There can be two tubes (8, 9) extending into the cylinder (1), for air delivery or discharge. A ball valve can be placed at the end of each tube to prevent water level dropping, and several such pumps can be used together to lift the water.
Patent FR-2288381-A1 (FR)
Title: Switching method for a transformer - has magnetic core memorising current direction and operating thyristors
IPC: H01F30/10
Filed: 1974-10-16
Abstract: The alternating current flow sense (positive 1/2 cycle or negative 1/2 cycle) is memorized preceding the application of voltage to the transformer. The memorized information is used to act on a means of conduction (1, 2) so as to determine the current flow in the transformer in the sense opposite that previously flowing in the transformer. The memory device is a wound magnetic core (14, 15, 16, 17) with a rectangular hysteresis loop. The conducting means are two anti-parallel connected thyristors (1, 2) connected in series with the primary winding of the transformer. The transformer may be in series with a memory core in the diagonal arm of a thyristor bridge.
Patent FR-2292829-A1 (FR)
Title: Keyhole shutter for automobile cylinder lock - slides in cylinder head recess and is retained by elastic ring around head
Inventor: LIPSCHUTZ PAUL
IPC: E05B17/18
Filed: 1974-11-29
Abstract: The keyhole shutter (13) for sealing automobile cylinder locks from dust and weather, slides transversely to the keyhole axis to cover the hole when no key is inserted. The shutter is displaced by key insertion and is fitted in an open laterally grooved channel which is cut in the circular cylinder (1) head and extends from the keyhole to the cylinder periphery. The shutter is maintained in the closed position by an elastic ring (18) which encircles the cylinder head in the shutter plane to contain the shutter. The ring (18) is contained within a peripheral cylinder head groove and is an elastomer such as rubber, a split ring, or a coil spring formed into a ring.
Patent FR-2264195-A1 (FR)
Title: High pressure piston pump - spring loaded hollow piston generates valve closing force during return stroke
IPC: F04B19/02
Filed: 1974-11-12
Abstract: A housing (1) has a hollow piston (6) with a shoulder (8) approximately half way along it acting as a locating face for a spring (7) which is located at the other end by a collar (9) on a sleeve (10) around the top of the piston. The outlet port (18) at the bottom of the piston is preceded by a chamber (18) housing a spring loaded ball (4) seating in a conical depression one side of a block under the pointed end of the piston, closing a hole (13) through the block. A hole (20) of smaller diameter than the bore (5) of the piston (6) is in line with this hole (13), and the bore of the piston acts as a chamber to provide a supplementary closing force during the return stroke of the piston.
Patent FR-2256780-A1 (FR)
Title: Copper catalyst prepn. on support - with good mechanical and thermal stability and catalytic activity
IPC: C07C209/36
Filed: 1975-01-07
Abstract: A copper catalyst for hydrogenation and dehydrogenation is prepd. by pptn. of hydrated cupic oxide using alkali or carbonate on Kieselguhr with subsequent introduction of silica gel. Specif. the catalyst is 20-45 wt. % copper and the silica gel 15-75 pref. 20-40 wt. % w.r.t. the support. The hydrated cupic oxide-Kieselguhr is impregnated with a sol of silicic acid made from Na silicic acid made from Na silicate and nitric acid which is transformed to a gel by adjusting the pH to 7.5-8.5 and heating 50-100 degrees C. Copper catalysts facilitate hydrogenation and dehydrogenation, but not for 5 or 6 membered rings. The catalytic action of copper means that the catalysts must contain >=20% copper and this high figure dictates the method of prodn., usually by co-pptn. with Al, Si or Cr oxides etc. or pptn. on silica gel, pumice stone and the like. These supports however are mechanically weak and do not lend themselves to tableting or moulding. The addn. of silica gel to the copper oxide-Kieselguhr matrix improved its mechanical and thermal stability whilst retaining catalytic activity and permitting tableting.
Patent FR-2297017-A1 (FR)
Title: Drop leaf gate leg table - has two pull out legs each side connected by linkage to operate in unison
IPC: A47B1/04
Filed: 1975-01-13
Abstract: The plate (10) has a side folded up each end, and is screwed (11) underneath the fixed portion (1) of the table, and holds two pins (13a, 13b) projecting downwards. These form bearings for the gate leg assemblies, one fitting on each pivot and stowed away under the fixed portion when not in use. Each bush (17a, 17b) has a lug (18a, 18b) forming a seating for a link (20) connected between them by pivots (21b, 22a). When either gate leg is pulled forwards underneath the drop leaf of support it, the linkage causes the other gate leg to move out in identical fashion. Pushing in one assembly similarly moves the other inwards.
Patent FR-2268278-A1 (FR)
Title: Camera with single motor - for film transport and shutter tensioning with detent disc and detent lever
IPC: G03B17/42
Filed: 1975-02-12
Abstract: The camera for single or series shots and any desired time can be triggered either on the camera or by remote control. The tensioning of the shutter and the film transport are done in either case by a single motor. An optimum frame frequency is achieved depending on the set exposure time and the design is simple and compact. The detent disc (19) which restricts the film transport can be locked by a lever (17) which receives a trip signal (22) from an accumulator governed by the mirror gearing. It can move the latch (15) for a multi-armed lever (10), one arm of which (10a) contacts a cam shaft (11), which governs the various types of shots. The lever (10) also carries a catch (12) which is in contact with the lug (8a) of a pusher rod (8) operated by the remote control (23). It can also rock a toggle lever (4) which can be locked by a latch (9) and acts on the lever and catch (5, 6) which lock the mirror gearing.
Patent FR-2265709-A1 (FR)
IPC: C07C29/141
Filed: 1975-03-24
Abstract: 1,6-Hexanediol is manufactured by hydroformylation of 1,3-butadiene by a process wherein an acetal of pent-3-en-1-al is formed in a first hydroformylation step in the presence of lower alkanols or alkanediols and of rhodium catalysts, and is then converted into 1,6-hexanediol in a second hydroformylation step in the presence of cobalt catalysts, followed by hydrogenation.
Patent FR-2314336-A1 (FR)
Title: Lock for pivoting panel - has latch with catch freed from retaining tooth by ramp face on turn button
IPC: E05B65/19
Filed: 1975-06-13
Abstract: The pivoting panel lock has a pivoting latch held in the engaged position by a catch. The latch pivots inside a cover formed at the end of a housing containing a spring-loaded turn button accessible from outside. The button has a ramp face acting against the catch so as to free it from a retaining tooth and thus release the latch. The catch can form part of the latch, being of elastic material, and held by a tooth formed on the housing at the level of the button ramp face. The button can consist of an annular portion accommodating a drum actuating a bolt locking it.
Patent FR-2324824-A1 (FR)
Title: Roof with variable slope - has curved support pillars with horizontal beams spanning between them
IPC: E04B1/32
Filed: 1975-09-22
Abstract: The roof has arced supports standing in a vertical plane. At regular intervals in the side of the supports, vertical brackets are attached and carry a horizontal tube. Horizontal beams span the vertical supports and rest on the horizontal tubes. The beams are formed from metal channels and twin vertical end plates support horizontal tubes which rest on the previous horizontal tubes at right angles. A clamp secures the tubes together and the sheet roofing is layed over the array of beams to form a curved or straight surface. The upper channel surface of the beams slopes at the local angle of the sheet roofing.
Patent FR-2327844-A1 (FR)
Title: Simultaneous feeding of multiple electrode wires - in very large plant for submerged arc welding using consumable nozzles
Inventor: BERFOR M G G
IPC: B23K9/133
Filed: 1975-10-13
Abstract: Mechanism for feeding electrode wires in an installation for submerged arc welding using consumable nozzles, comrpises several pairs of grooved pinions mounted in rows, one pinions in each pair being driven to feed the wire down the grooves and consumable nozzles into the slag. >=2 pairs of pinions form a group with individual electric control of its common drive shaft, the number of the groups and their controls being multiples of three. Each group pref. contains six pairs of pinions, and potentiometers adjust the r.p.m. of the motors in each group, but a master control can also alter the r.p.m. of all motors simultaneously. The mechanism is useful in welding joints with thickness up to 2500 mm, in mfg. e.g. large welded rotors for turbo-generators, rolling-mill frames, press frames etc.
Patent FR-2289695-A1 (FR)
Title: Pre keying tension members in stressed concrete anchorages - with external structure oriented force pressing member and wedge into anchor (OE150376)
IPC: E04G21/12
Filed: 1975-10-27
Abstract: The tension member and the tension wedge are together pressed into the anchor unit, by a force acting on both member and wedge from outside, in the direction towards the stressed-concrete structure. A smaller degree of friction is pref. generated between the external surfaces of the tension wedges and the hole walling in the anchor unii, than between unit, than between the tension wedges and the tension wire. The exertion of pressure on the tension wire (2) and anchoring wedge (3) can be effected by a ring (7) enclosing the projecting end of the wire and bonded to it. The max. diameter of the wedge may be twice that of the tension wire. The teeth inside the wedge are not subjected to damage.
Patent FR-2291824-A1 (FR)
Title: Cross-table for machine tools and precision instruments - is of simple design but has highly accurate guide system
IPC: B23Q1/62
Filed: 1975-10-31
Abstract: A cross-table comprises a base plate, a centre plate movable in one coordinate direction on the base plate and a top plate movable in the other direction. The centre plate has lateral guide surfaces which are in contact with rollers (4) mounted between the base plate (1) and the top plate (3), so that the centre plate is the member which determines the straight line motion and the true right angle of the coordinates. The plates may rest directly on each other or may be borne hydrostatically or by a film of air which is blow in under pressure. When rollers are used there are two sets of rollers at right angles to each other.
Patent FR-2335601-A1 (FR)
Title: Enriching protein content of lactoserum by fermentation - using a Candida type yeast in presence of alcohol
IPC: C12N1/16
Filed: 1975-12-18
Abstract: Prepn. of a protein concentrate by aerobic culture of yeast on serum (lactoserum) is claimed. The serum used is sweet or acid, or a sweet serum acidified by anaerobic fermentation with Streptococcus or Lactobacillus bacteria at 18-50 degrees C up to a 1.6% max. lactic acid content, and boiling to coagulate the foam formed followed by cooling to 26-34 degrees C and adjusting the pH to 4-6 by adding CaCO3. The serum is fermented in the presence of nutrient mineral salts, such as ammonium, magnesium or potassium salts, urea and ethanol using a Candida species of yeast. The proportion of alcohol is maintained at 0.1-2% after which the alcohol is allowed to be consumed completely to the end of the fermentation. The medium is then concentrated to a paste or powder. Process is economical, due to use of ethanol as carbon source, esp. in mass production to give a food prod. of high biological value.
Patent FR-2297514-A1 (FR)
IPC: H02H11/00
Filed: 1976-01-13
Abstract: Electronic switching elements having a tripping behaviour which are connected to the proportional voltage of a voltage divider which carries the operating voltage control grouping devices on the output side. The proportional voltage occurring on the voltage divider (1/2) is split into different connected selection stages (4, 5, 6) on the basis of frequencies which can be expected, including zero frequency, that is to say DC voltage, and the grouping devices are controlled via the frequency determined. In the case of the multi-voltage selection device, tuned-frequency tuned circuits are provided as selection stages (4,5) for AC voltages, an RC element being used as the selection stage (6) for zero frequency. Each selection stage (4, 5, 6) is connected to a number (corresponding to the number of voltages which can be expected in the frequency band) of triggering stages (7-10) which respond in a voltage-stepped manner. It is thus possible to differentiate in a simple manner and irrespective of voltage tolerances precisely between the railway frequencies, including zero frequency, and to make correct groupings for inductive loads.
Patent FR-2339090-A1 (FR)
Title: Blind rivet for electrical box assembly - has earth tag having two tabs at angle and is fitted to rivet shaft
IPC: F16B19/10
Filed: 1976-01-26
Abstract: This form of blind rivet is specifically intended for use in assembly of cover boxes, for electrical equipment, which need earthing tags to be attached on-site. The earth tag is drilled to fit on the shank of the blind rivet and is held captive between the rivet head and the external face of the box. An eyelet bearing on the internal face of the box holds the tag in position during assembly. The tag is made from electrically conducting material and has two projecting tabs, one perpendicular to the longitudinal axis of the expansion pin of the rivet and the other at such an angle that when assembled, it projects away from the external face of the box.
Patent FR-2301425-A1 (FR)
Title: Railway goods wagon electronic fault warning system - has wagon-mounted generator-fed evaluating circuits and locomotive-mounting warning indicator
IPC: B60L3/12
Filed: 1976-02-12
Abstract: The system records transmit and monitors the operational condition of railway wagons, esp. goods wagons which are not usually equipped with any form of electrical power but which may need to be continually checked for safe running. there are instruments to give warning of hot-running wheels, flattened sections, derailed axles etc, in each wagon in a train they are linked to an electronic evaluating circuit, where data are scanned for reading beyond the tolerance limits. This is connected to a UHF transmitter-receiver (13) signalling to a central station with optical and acoustic indicators (14) on the locomotive, if excessive readings occur. Each electronic evaluating circuit is connected to a mechanical indicator which marks the railway wagon and axle bearing (1) concerned. The whole electronic layout in a wagon is independently fed by alternating current generator (10) on board.
Patent FR-2343579-A1 (FR)
Title: Heat shrinking plastics sleeves onto articles - on turret on which sleeves are transferred from mandrel to articles
IPC: B29C63/42
Filed: 1976-03-11
Abstract: Heat shrinkable sleeves are carried on mandrels spaced about a rotary turret and base articles are carried in chucks on a carriage with a stripper device which removes the sleeves from the mandrels onto the article as the turret and carriage move through a transfer station prior to movemnt through a final heating device. A narrow band like pattern of heat is emitted from a heating device mounted adjacent the path of movement of hte articles adjacent the transfer station and in the direction of the heating device so as to heat a band like region of the sleeve to shrink an intermediate annular band like portion of the sleeve to hold th sleeve on the article during movement to the heating device. Used for providing a heat shrunk sleeve on glass bottles. Provides a means of securing the sleeves againt displacement as the articles are fed to the main heat shrink oven. Pref. sleeve can be of foamed polystyrene or foamed polyethylene formed from a uniaxially oriented strip (34) on the mandrel.
Patent FR-2306484-A1 (FR)
Title: Indicating drum with interchangeable inscribed panels - has two parallel discs which rotate around common horizontal axis
IPC: G09F11/06
Filed: 1976-03-31
Abstract: The indicating drum comprises at least two parallel discs (1) which rotate round a common horizontal first axis (2). The parallel discs (1) feature bearing positions in a wreath-shaped arrangement where the panels (3) are swivel mounted along a second axis parallel to the first. During a rotation of the drum the panels (3) turn over in succession from an upper (4) to a lower (5) indicating position like the pages of a book. The diameter of the studs is larger than the holes, and cylindrical indentations are provided to support the studs in the discs. The depth of the indentations is less than the thickness of the discs.
Patent FR-2364161-A1 (FR)
Title: Trailer boat for towing behind car - has wheels retractable inside hull recesses and removable tow bar
IPC: B63C13/00
Filed: 1976-09-08
Abstract: The craft is fitted with external water tight compartments, one on each side of the vessel. Each compartment is arranged to take the vertical support (10) of a wheel shock absorber (5). The shock absorber is integral with the support which is pinned to the hull by a pivot (9). The wheel has a pneumatic tyre and the wheel assembly may be treatcted into the compartment on the outside of the hull. An alternative arrangement allows for the removal of the wheel assembly.
Patent FR-2361898-A1 (FR)
Title: Forme non hydratee cristalline du 7-(d-2-hydroxy-2-phenyl-acetamido)-3-(1methyl-1h-tetrazole-5-ylthiomethyl)-3-cephem-4-carboxylate de sodium
Inventor: YANG KUO SHANG
IPC: C07D501/36
Filed: 1976-12-15
Abstract: L'invention concerne la forme non hydratée cristalline du 7 - (D - 2 - hydroxy - 2 - phénylacétamido) - 3 - (1 - méthyl - 1H - tétrazole - 5 - ylthiométhyl) - 3 - céphem - 4 - carboxylate de sodium que l'on prépare en partant du méthanolate cristallin ou du monohydrate cristallin. La forme cristalline non hydratée est particulièrement appropriée à la préparation de compositions pharmaceutiques parentérales pour le traitement des maladies infectieuses.