baber/WOPTO huggingface dataset:
Patent FR-2236937-A1 (FR)
Title: Protein production by aerobic fermentation of hydrocarbons - using a non-ionic followed by an anionic surface active agent
IPC: C12N1/00
Filed: 1973-07-03
Abstract: Purified biological material is produced by continuous aerobic culture of microorganisms on hydrocarbons in aq. medium containing nutrient by passing a combination of non-ionic (I) and anionic surface active agents through a closed circuit in the fermentation medium during separation where (I) is an addition product of 15-20 moles propylene oxide and 20-25 moles ethylene oxide and (II) is a 12-20C or 10-16C alkyl sodium sulphate. The combination of (I) and (II) is suitable for both fermentation and seperation stages, and increases the volume output rate of products. Foaming is reduced.
Patent FR-2329399-A1 (FR)
Title: Silver-indium-cadmium alloy joined to nickel - by diffusion welding without flux in argon atmos.
Inventor: LELIEVRE BERNARD
IPC: B23K33/00
Filed: 1973-07-06
Abstract: Two parts made of different metals, and presenting identical first and second surfaces are joined by diffusion, esp. a Ni part joined to a part made of an Ag-In-Cd alloy. Third and fourth surfaces parallel with surfaces are machined on the two parts, and force is applied to surfaces to press surfaces against each other during the diffusion treatment. The four surfaces are pref. flat and force is pref. applied at 90 degrees to surfaces, but must not cause the metals to creep. For diffusion, the parts are pref. heated to below one transformation point of the metals, and esp. to a temp. between two transformation points. After diffusion, the parts are pref. levelled along their parallel surfaces. The mating surfaces of the Ni and the Ag-In-Cd are pref polished with abrasive paper 600 and a force of 100 kg/cm2 applied during diffusion at 500-680 degrees C. in an inert gas, esp. Ar at atmos. pressure. Control rods can be mfd. for example for nuclear reactors, where Ni is joined to an alloy contg. 80% Ag, 15% In, 5% Cd. The conventional process of joining these metals is brazing at 700 degrees C, using flux. This invention uses a lower temp., as 700 degrees C. is harmful to the Ag alloy, and requires no flux which causes problems in subsequent mfg. operations.
Patent FR-2237809-A1 (FR)
Title: Tetrahedron shaped package for e.g. confectionery - is folded from parallelogram shaped blank with triangular areas
IPC: B65D5/00
Filed: 1973-07-20
Abstract: The package can be given an imaginary character. A parallelogram is divided into four equilateral triangles (P1), (P2), (P3), and (P4) by folds or fold ridges (A1), (A2), and (A3). The base of the carton is panel (P2) and assuming a human figure is being formed, the external side of this panel will have projecting legs (L1), (L11) which will pass through slots (F1) and (F11) in the side of the panel (P4). Arms (L2) and (L3) are formed on two outer edges and arm (L2) passes through slot (F2) in fold between panels (P3) and (P4). Other pseudo-human features are printed on the package. The package can be opened and closed by pressure on the top of the tetrahedron and one of the lower corners.
Patent FR-2242190-A1 (FR)
Title: Soldering very small components arranged in a straight line - using infra-red lamp mounted on moving slide
IPC: H05B3/00
Filed: 1973-08-30
Abstract: The process consists of moving a conc. source of radiant energy along a straight path in steps, the energy only being applied when the source is stationary. Alternatively, the energy may be applied while the source is moving, again during intermittent movement. The appts. consists of devices for moving the source along a path, stopping it for pre-determined intervals and switching on the energy so that each soldered joint is uniformly heated., i.e. all the operations can be timed in an automatic sequence. Used for soldering electrical components onto printed circuit boards. Avoids handling the components which is very difficult when small parts are involved; uniform soldering is obtd. and the appts. is simple and inexpensive.
Patent FR-2244611-A1 (FR)
Title: Perforation of thermoplastic film - by controlled irradiation from point sources of heat
IPC: B26F1/31
Filed: 1973-09-26
Abstract: of the film to an array of point sources of heat. Appts. used incorporates resistance heating wires or tapes mounted to provide a series of undulations to provide hot crests close to the plane of the film path. Method is used to puncture packaging film to make it air permeable. The size of the hole can be controlled by the period of exposure to the radiation and/or the intensity of the radiation, cf. use of banks of needles or toothed rollers which take longer to adjust or change and are subject to mechanical wear. The edges of the holes become surrounded by a tear-resistant bead.
Patent FR-2239418-A1 (FR)
Title: Agricultural machine hydraulic lift control - has threshold value stages controlling solenoid valves for movement in opposite directions
IPC: A01D34/24
Filed: 1973-12-13
Abstract: The system is particularly for use on agricultural machines such as tractors and combine harvesters, having one or more electrical desired-value emitters adjustable to give the desired position or degree of draught, and one or more electrical actual-value emitters on the machine itself. Two or more threshold value stages are provided, one operating above and the other below a set control discrepancy, and each controlling a solenoid valve. Each valve controls an opposite movement of the hydraulic lift, and a feedback is provided, so that after one valve has functioned a delay occurs before the other can do so. The terminal through which a control voltage is applied to one valve to cause it to function can be connected via an integrator unit with the input of the threshold value stage of the other valve.
Patent FR-2256371-A1 (FR)
Title: Wood waste incinerator with cylindrical hearth - has tangential turbulence inducing air inlet flow to hearth
IPC: F23G7/10
Filed: 1973-12-28
Abstract: The incinerator has a horizontal hearth closed at one end by an insulated door. An inspection or loading door is fitted, and the primary combustion air is admitted through the loading door. The incinerator is carried in a cradle. The hearth has a horizontal cylindrical section. The secondary combustion air is admitted perpendicularly to the hearth axis and tangential to its wall and is pre-heated. The cylindrical hearth is enclosed in an outer tube to prevent heat losses. The incinerator auxiliary devices are mounted on the chassis and include a heat exchanger, a smoke scrubber and a control orifice for secondary air.
Patent FR-2214038-A1 (FR)
Title: Oil recovery from strata by water-flooding - using water contg. superbasic sulphonates derived from petroleum or coke oven products, opt. with non-ionic surfactants
IPC: C09K8/584
Filed: 1973-12-28
Abstract: The additives consit of superbasic sulphonated derivs. of (1) plate oil extract; (2) heavy coking gas oil; (3) a cracked refinery distillate stream, (4) crude oil with API gravity at least 25 and at least 25 wt.% aromatic content; (5) at least 14C alkanes; (6) 7-18C branched alkenes, (7) an alkylation reaction prod. (I) of an aromatic hydrocarbon. and a 10-18C n-alkane with 2-15 wt.% Cl content; (8) and (7) with with 10-45% Cl, content, (9) (I) and a branched 10-35C alkene (19) (I) and a 10-18C n-alkyl aromatic hydrocarbon with 10-60% Cl content; (11) superbasic hydrocarbon sulphonates with average equiv. wt. 400 min. in combination with water sol. non-ionic surfactants; (12) oil-soluble sulphonate with average equiv. wt. 400 min. in combination with water-soluble sulphonate with average equiv. wt. 200-400 (13) combinations of (7) and (9) or (14) one of the above in combination with chelating agents of Na3PO4. H2O. Super-basicity ratios are 0.03-2 for (1,2,3,5,6,8,10 and 12), 0.03-3 for (4,7,9 and 13) and 0.03-5 for (11). They are readily available and cheap, and suitable in aq. solns. for secondary extraction of oil from underground formations.
Patent FR-2259563-A1 (FR)
Title: Circular tubular frame garden table - has removable top sections clipping onto two concentric frame rings
IPC: A47B37/04
Filed: 1974-02-05
Abstract: The frame is made from metal tube and comprises an inner circle (5) joined to an outer circle (3) by several spacer arms (4). Feet are provided, these being attached to the outer circle which is smaller in diameter than the table top. Each top section (7) of plastic has incurving sides formed by the segment of a circle. The sides are flanged with semi-circular locations for clipping over the support frame; that for the outer circle on a horizontal axis, that for the inner on a vertical axis and smaller than the tube. The hole in the table centre has an inserted lug.
Patent FR-2260514-A1 (FR)
Title: Visible shock indicator for package transport - has two leaf springs normally holding a ball
IPC: B65D79/02
Filed: 1974-02-13
Abstract: The circular outer case (5) is made from plastic and has an annular rim provided with fixing holes (b). Inside the case are mounted two strips (d, d1) of metal, annealed to give little elasticity. These are fixed to have a wide base opening, converging to a narrower at the top. Also mounted in the case are two leaf springs (f, f1), attached to the annealed strips and having a hole in the centre of each for housing a metal ball (g). A transparent cover (c) fits over. In the case of a shock, the ball is dislodge from its seating, dropping into the bottom of the casE.
Patent FR-2219972-A1 (FR)
Title: Alcoholic and non-alcoholic drinks - are prepd. by fractional vacuum distillation of wine at ambient temp
IPC: B01D3/00
Filed: 1974-02-28
Abstract: Ethylalcohol and volatile fractions are removed from a liq. produced by alcoholic fermentation (wine) of a natural prod. (except malt) by distillation at reduced pressure (10-50 degrees C, pref. 10-25 degrees C and 4-150 mm pref. 4-20 mm Hg) and fractional condensation (at 5 to -70 degrees C pref. 5 to -30 degrees C) 100 vol. % pref. 30-40 vol. % oxygen is added to the air stream during distillation. The residual wine contains 6% ethylalcohol and may be blended with distilled water, 15 g/l sugar, CO2, and ascorbic acid. The extraction is rapid and economic and gives prods. of excellent taste and fragrance.
Patent FR-2264832-A1 (FR)
Title: Cyclic carboxylic acid dihydrazide polymers - used as high temp adhesives etc in aircraft
IPC: C08G73/06
Filed: 1974-03-18
Abstract: A N-N cyclised cyclic arboxylic acid dihydrazide-diol polymer is prepd. by reacting a cyclic polycarboxylic acid dihydrazide (I) with a diol (II) and aldehyde (III) at 95-120 degrees C to form an uncyclised polyamic acid polymer and then heating this polymer >120 degrees C to internally N-H cyclise the polyamic acid. A polar solvent (IV) can be added prior to the polymn. Pref. I is pyromellitic dicarboxylic acid dehydrazide (V) and II is pref. 1,5-pentane diol dihydroxydiphenylsulphone, diethylene glycol, trans-1,4-cyclohexane-dimethanol and 2,2,3,3,4,4-hexafluora-1,5-pentane diol. Pref. III is HCHO and IV is 1-ME-2-pyrrolidone, DMF, DMA, DMSO and THF. Prod. has good high temp. and oxidn. resistance props. and is suitable for use as adhesives, sealants, etc. for high performance aircraft.
Patent FR-2272545-A1 (FR)
Title: Remote controlled transmission change-over unit - has local oscillator and relays switching normal or safety circuits
IPC: H04B1/74
Filed: 1974-05-21
Abstract: The units switches between normal and safety transmission circuits connecting controlled transmitting centres. A transmission circuit (C() normally connects the controlling centre (A) to the controlled centre (B). An oscillator (6) at the controlling centre produces a characteristic frequency of 330 Hertz and jack-point connections (3, 5, 31, 41, 7) switch between the circuits and the controlled centre (B). Filgers (13, 33) detect the characteristic frequency. A first relay (51) connected to the filter (33) of the safety circuit (CS) isolates this circuit and places the transmission in parallel with the two circuits. Another relay connected to the filter (13) of the normal circuit can cut-off emission and change reception from the normal circuit to the spare circuit.
Patent FR-2231616-A1 (FR)
Title: Prodn of hot reducing gases for metallurgical use - - by controlled combustion of hydrocarbons and addn of methane
IPC: C01B3/22
Filed: 1974-05-20
Abstract: Hot reducing gases for metallurgical furnaces (e.g. direct redn. of metal ores or in blast furnaces) are produced by (a) burning a liq. or gaseous hydrocarbon in the presence of the minimum excess of O2 necessary to avoid soot formation, to give a gas contg. mainly CO and H2 (pref. at 1300-1700 degrees C); and (b) injecting a gas contg. CH4 (pref. natural gas or coke-oven gas) into the combustion prod. to reduce the degree of oxidn. and temp. of the latter to a level corrsp. to optimum conditions in subsequent metallurgical processes.
Patent FR-2273408-A1 (FR)
Title: Impedance matching for RF cathodic diode atomiser - by adjusting press. of gas admitted to chamber
IPC: C23C14/54
Filed: 1974-05-29
Abstract: A radio frequency voltage generator and a cathodic diode atomising device are impedance matched. The atomiser is arranged in a vacuum enclosure comprising the output of impedance adaptation circuit, the target and the substrate between which a plasma is formed. The plasma is produced due to the action of a variable electromagnetic field established whilst the target is supplied from the generator and the gas injected into the enclosure. Gas flow is controlled by a microvane. Impedance adaptation is achieved by regulation of the admission pressure of the injected gas without altering the value of the elements of the impedance adaptation circuit.
Patent FR-2278559-A1 (FR)
Title: Planing boat having stepped hull bottom - of tunnel shape for trapping air cushion
IPC: B63B1/20
Filed: 1974-07-19
Abstract: Stable planing is possible with outboard motor boats having this hull design, in which air is forced under the hull via one or more openings in the planing step. The air may be supplied from ram intakes above a forward deck, and is trapped under the hull due to the tunnel shape of the hull bottom, the shape being accentuated by side keels or air cushion sidewalls extending aft from the step. During planing, the air cushion is set up both force and aft of the step, and the hull may contact the water at three areas, namely two side areas forward of the step and a third area at the stern end of a central keel.
Patent FR-2247822-A1 (FR)
Title: Device for charge propagation prevention in semiconductor - uses oxide layer on semiconductor substrate, carrying contact with protection ring
IPC: H01L29/00
Filed: 1974-08-19
Abstract: The device for preventing of charge propagation in semiconductor devices consists of a protective ring surrounding a high-voltage source to block the charge propagating to other parts of the semiconductor chip. The semiconductor substrate has a surface coated with an oxide layer whose section carries an electric contact element, both connectable to a high-voltage source. The conductive protective ring is provided on the oxide layer and surrounds, at least partly, the contact element. The ring is connectable to a separate source of reference voltage. The oxide layer may have an insulating coating between the contact element and the protective ring, and a second insulating coating outside the protective ring.
Patent FR-2285189-A1 (FR)
Title: Straight line vibration mechanism - has eccentric shaft coupled to item by spring assembly
IPC: B07B1/40
Filed: 1974-09-19
Abstract: The mechanism is for use with a sieve, vibratory conveyor etc., and comprises an eccentric shaft (a) connected to be vibrated by an elastic assembly (d). This allow the shaft to oscillate freely in one direction, but secures it solidly to the item concerned (c) in a direction perpendicular to the first one. The assembly can be in the form of a perpendicular to the first one. The assembly can be in the form of a series of leaf springs which are parallel to each other in the same plane, which join the shaft solidly to the item in their lengthwise direction. The plane of the leaf springs can pass through the centre of gravity of the item.
Patent FR-2250034-A1 (FR)
Title: Hydraulic motor with oval rotor in circular cylinder - has throttling passages between high and low pressure sides
IPC: F01C21/10
Filed: 1974-10-31
Abstract: The motor has a circular cylinder within which is a rotor which has opposed ends on a major diameter and sections between them of a smaller diameter. The cylinder has inlet and discharge passages leading from inlet and discharge ports. The gap between the reduced diameter of the rotor and the cylinder forms the working chambers. The cylinder contains two spring loaded plungers which press on the rotor and form a seal between the high and low pressure sides. Deepened grooves in the cylinder between the inlet and discharge passages allow a small leakage from one side to the other and reduce the suddenness of the pressure change as the fluid passes from one side to the other.
Patent FR-2255325-A1 (FR)
Title: Thermosetting bonding resins - phenolic/amino/formaldehyde condnsn. prod. prepd. and/or cured with a Mannich base
IPC: C08G14/06
Filed: 1974-12-20
Abstract: Thermosetting resins comprise 100-40 mol. % phenol and/or cresol, 0-60 mol. % urea, thiourea or melamine, and 1-4 mol. formaldehyde reacted at elevated temp. with alkaline catalyst, and with 0.1-0.001 mol. of a Mannich base (1) added either to the starting reaction mixt., in single or multiple portions during reaction or wholly at end of reaction. (1) is pref. prepd. from ketones, formaldehyde and secondary amines, and is esp. 2-dimethylamino-methyl-cyclohexanone. The resins are used for coating/impregnating sheet materials e.g. paper, and subsequently hot bonding on to wood veneer surfaces, hot pressing together into laminated sheet or for prepn. of moulding cpds. or adhesives. The Mannich base speeds up mfr. of resin, drying of impregnated sheet materials and final cure, without impairing mechanical and chemical props. of the cured products.
Patent FR-2278912-A1 (FR)
Title: Six-stroke cycle internal combustion engine - prevents power loss at end of expansion with vacuum suppression valve
IPC: F02F1/24
Filed: 1974-12-20
Abstract: Existing four-stroke cycle piston engines produce a depression in the cylinder at the end of the expansion stroke when the throttle is only partly open. The invention proposes the installation of a third valve which functions as a vacuum suppression valve which opens towards the end of the expansion stroke and allows atmospheric air to enter the cylinder and suppress the vacuum. The valve has a shaft which is surrounded by two springs which urge the valve against its seat. One of the springs strongly urges the valve against its seat and is inoperative during the depression part of the cycle such that the depression can raise the valve against the light pressure of the second spring.
Patent FR-2296897-A1 (FR)
Title: Alphanumeric display unit - uses sixteen selectively energised light sources arranged in offset rows
IPC: G09F9/302
Filed: 1974-12-30
Abstract: The display unit for displaying one of several different possible numbers, or letters, has at least sixteen light sources, selectively, supplied with energising current and arranged in four horizontal rows, each containing three light sources and one further row containing four light sources. The light sources occupying the same position in each of the successive rows are positioned along a line which forms an angle of about 60 degress to the horizontal and sloping towards the left or right. Preferably the row containing 4 light sources is the next to last and the light sources are pref. circular and tangentially touching one another.
Patent FR-2298749-A1 (FR)
Title: Externally adjustable cock valve - has spherical cock engaged by seats movable against cock by fluid pressure pistons
IPC: F16K5/20
Filed: 1975-01-27
Abstract: A turning cock valve has a spherical cock (4) turning about axis (y1) and sealing devices (5, 6). The cock has a pivot and an operating key (8) and has a bore (9) of the same dia. as the pipes with which it is continuous when the cock is open. Each sealing device has a seat (12, 13) with a seal (14, 15). Behind the seat is a piston (16, 17) and elastic washers (18, 19) are located between the piston and the seat. Between the piston and the seat holder (20) is a space (22) in which the seat (12) and piston (16) may slide. Space (22) can be connected to a source of fluid under pressure. This fluid presses on the piston which transmits the pressure to seat (12), thus compressing the seal.
Patent FR-2300723-A1 (FR)
Title: Parallel feeder of screws for processing - has magazine with cogged wheel gripping screws at ends
IPC: B65G15/14
Filed: 1975-02-14
Abstract: The screws (3) are fed horizontally from a magazine, or an earlier procrss, down an inclined chute (9). At the bottom of the chute is a wide wheel (7), cogged around its circumference to provide recesses (8) into which the screws drop; one screw in each recess. As the wheel rotates, each screw is fed between the parallel portions (1a, 2a) of two endless belts (1, 2) of rubber or similar material, running over rollers (5). Each screw is gripped by the ends, aided by a back plate (4) on each side, and passed over the provessing station (10), spaced the correct distance apart and parallel to each other.
Patent FR-2265285-A1 (FR)
Title: Extracting nucleic acids from edible yeast cells - by hydrolytic sepn first in alkali medium and then in acid medium
IPC: C12N1/08
Filed: 1975-03-26
Abstract: Nucleic acid extn. from yeast cells is by hydrolytic sepn. first in alkali (NaOH) and then in acid (HCl). The respective concns. are pref. 0.15N-1.5N and 0.3N-6N. The temp. is kept at 20-100 degrees C for 10 mins. to 24 hrs. The treatment with base and acid is followed by removal of sol. acids, lipids and nucleii acids by mixing and subsequently washing with 10% triallyl cyanurate.
Patent FR-2306562-A1 (FR)
Title: Cabling of railway eddy current braking - is repetitive four and six wire system handling 650 amps
IPC: H02K49/04
Filed: 1975-04-04
Abstract: The cabling arrangement is for linear eddy current braking on rail vehicles where there is a driving unit at each end of the series of carriages or trucks. The design is intended to provide a basically simple system capable of handling 650 amps at 50 kw. The driving units have associated bogie motor. The remaining carriages are unpowered but have braking units. The conductor arrangement provides a repetitive pattern from drive unit to bogie to coach throughout the length of the train. The connection between the drive unit and bogie is a four wire system and six wire between bogie and coach and coach to coach.
Patent FR-2312610-A1 (FR)
Title: Hinged prefabricated building frame - has U-section parallel uprights linked by cross members with hinged joints
IPC: E04B1/344
Filed: 1975-05-30
Abstract: The frame (2) consists of quadrilateral sections (3, 4, 5, 6) each rectangular, which form the walls and roof of the building. The sections are hinged to each other in such a way that they are able to pivot around an axis (7) parallel to the ridge of the roof and can be folded one on top of another. Each section comprises two U-section parallel uprights (11) linked by cross-members (12) with a panel (13) attached to these cross-members. Use of these frames enables the length of a building to be varied and also allows the building to be quickly dismantled and easily transported.