baber/WOPTO huggingface dataset:
Patent FR-2267661-A1 (FR)
Title: Relay with overcurrent and - voltage protection - has four semiconductor circuits compensating for surges
IPC: H03K17/082
Filed: 1974-04-09
Abstract: A semiconductor circuit (T2) has a Zener diode in parallel to the supply. A second semiconductor circuit (T3) is connected to the output of a first circuit. A third semi-conductor circuit (1) is connected to the input of the first circuit with a switch between. A detection resistor is connected to the second semi-conductor circuit in series with the supply. When the third transistor circuit is energised by the switch the second transistor circuit conducts. The Zener diode conducts when an overvoltage appears and the second transistor circuit increases the current supply to counter act the overvoltage. For a load circuit overload a step detection circuit conducts, cancelling the control switch whilst shor circuiting the third transistor circuit and blocking the first and second in their non-circuiting states so that the load supply is blocked.
Patent FR-2266522-A1 (FR)
Title: Perfusion appts. monitoring equipment - has opto-electronic detector on infrared filter with amplifier
IPC: A61M5/168
Filed: 1974-04-05
Abstract: Frequency and rate are monitored electronically, avoiding the need for medical attention, an alarm operating in the event of a fault. An opto-electronic detector on the filter formed by a detector receiving and emitting infrared rays is used with an amplifier and a variable module divider. A counter and an indicator of total output are included, together with a programming pre-selector, a size comparator and an alarm signal unit. A frequency monitoring circuit has its value programmed by a special circuit, and a hysteresis circuit is regulated by a suitable unit. All these are subjected to the action of a synchroniser.
Patent FR-2229757-A1 (FR)
Title: Hydrocarbon cracker using hot gases - for naphtha, gas oil or crude feedstock
IPC: C07C1/00
Filed: 1974-05-06
Abstract: Reactor for cracking hydrocarbons, and more especially a range of feedstock e. g. naphtha, gas oil and crude with a hot gas comprising (a) a first cylindrical tube (T) closed at both ends, >=1 of which has a central opening (b) >=1 hollow feed chamber open at both ends, one of which passes through the cylindrical surface of the tube (T) and entering this so that vapour flowing through this does so tangentially to the interior wall of the tube (T) and creates a vortex stream therein (C) >=1 second tube (P) open at both ends, one of these being connected to the tube (T) at the level of and concentric with the central opening and communicating freely with the interior of (T). (d) overall dimensions such that where a=diameter of the first tube (T) b=height of the first tube C=equivalent (hydraulic) dia. of the second tube (P) c'=equivalent (hydraulic) dia. of the central opening in (T) then b/a=0.01-1:1; c'/c=1-0.1:1, d/c=5-200:1; Vt/Vp=0.01-5:1 where Vt and Vp are the volumes of the tubes (T) and (P) respectively.
Patent FR-2234125-A1 (FR)
Title: Extruder head for forming concentric layers - has centrable nipple for inner-most layer and centrable orifices for remaining strata
IPC: B29C48/06
Filed: 1974-05-07
Abstract: An extruder head for extruding a moulding cpd. in concentric layers, whose nipple which delimits that channel for the innermost layer, and whose further orifices forming the channel walls for the remaining layers are centrable, is characterised in that the orifices are fixed and each is crossed by a radially adjustable centring ring whose length is relatively short in the direction of the channel, on the side of engagement, as compared with the length of each orifice on that side of the channel. Suitable for mfr. of e.g. multi-sheathed electrical conductors. The claimed arrangement enables cables with >=3 insulating layers to be produced, each layer being fully centrable.
Patent FR-2276583-A1 (FR)
Title: Measuring process and appts for dissolved oxygen - in aq. liqs. using catalytic cell and resistance probes
IPC: G01N33/18
Filed: 1974-06-24
Abstract: Process and appts. is intended for the control and analysis of dissolved oxygen in aq. liqs. hitherto chemical methods of analysis were used and took several hours; the new appts. gives a result in eight minutes. Appts. comprises a pump which brings the water to be studied into a 1000 cc. cylindrical chamber; this has a vertical probe leaving by the passage. Pipe carries the water through an electric valve and a catalytic cell; this consists of a porous glass cartridge contg. a mixt. of rare metals oggp. III. These form an oxide, with the dissolved oxygen,which dissolves instantaneously giving a powerful electrolyte; this passes by pipe and the valve to the rustproof1000 cc cylinder, fitted with a resistance probe and an overflow. The two probes are connected to the Wheatstone bridge and the resistances in the two cylinders compared. The increase in the conductivity corresponds to the quantity of dissolved oxygen absorbed in the catalytic cell. The pH can be measured in the cell. The appts. can be utilised for the control fo waste water and sewage treatment plants, for the detection of oxygen in fermentation cultures and for boiler-water treatment. The results can be transmitted to remote-controlled relays at the necessary technical points.
Patent FR-2284204-A1 (FR)
Title: Spindle for tool forming wrapped wire pin connexions - has two side slots for wires and bore for connexion pin
Inventor: RASO JEAN BAPTISTE
IPC: H01R43/033
Filed: 1974-09-05
Abstract: The spindle winds two wires helically upon a pin, the two wires lying alongside each other in contact along their whole lengths. A locating hole (2) runs up the spindle centre and a longitudinal slot (3a, 3b) either side of the hole (2) allows a wire stripped of insulation to be lead on to a pin via a further slot across the base of the spindle. The actual winding process is intended to follow the normal manner, both wires being wound simultaneously providing a very low contact resistance between the two wires.
Patent FR-2285219-A1 (FR)
Title: Bulk handling method for wood - uses lengths cut into pieces between quarter and four times dia.
Inventor: HANAYA MORIMASA
IPC: B27B1/00
Filed: 1974-09-20
Abstract: A method of handling wood intended for paper making, wood wool in bulk making, sawdust or other processes, so that the cut pieces are easily handled, transported, discharged, stored and used in bulk, consists of cutting the wood lengths, which may be 20-30 cm. diameter, transversely to and length of a quarter to four times their diameter, especially equal to their diameter. Chain saws or circular saws may be used for cutting, and for bulk transport by sea, a circular saw can be installed in a barge, while a handling system can be used to obtain a large number of cut pieces per unit of time. Preferably a method is used which cuts a length into an equal number of pieces of the required size.
Patent FR-2285619-A1 (FR)
Title: Inspection of electrical component transfer function - by positioning transducer on screen displaying trace of functions
Inventor: COUSSOT GERARD
IPC: G01R27/30
Filed: 1974-09-20
Abstract: The procedure for inspecting the transfer function of a component involves analyzing the component in a network analyser, projecting the transfer function curve (2) of the component onto the cathode screen (1) of the analyser, placing on the screen (1) a transducer (3, 4, 5) which is excited by the trace (2) when there us provisional coincidence between a point on the trace and the transducer, taking the transducer output signal (a, b, c) and deciding, on the basis of coincidence or non-coincidence, whether to accept or reject the component. Two or more transducers may be used, connected to a logic circuit, the transducers being placed on the trace of a reference transfer function.
Patent FR-2252200-A1 (FR)
Title: Press tool for moulding thermoplastic record discs - with cellular tool wall zone to assist rapid heat transfer swings
IPC: B29C33/04
Filed: 1974-11-21
Abstract: Press tool where one face of a shallow cavity comprises a flexible diaphragm backed by an annular recess for radial flow of a heat transfer fluid supplied alternately at high and low temps via a parallel recess distributing the fluid from a central chamber to the periphery of the annular recess, where the secondary recess is backed by a section of tool wall of cellular structure with an impermeable cover. Esp. for moulding replicate thermoplastic discs of e.g. a video recording signal profile on the exposed face of the diaphragm. The cellular structure reduces the heat capacity of the tool body adjacent to the fluid passages, thus allowing a more rapid temp. swing between hot and cold flows to the tool face.
Patent FR-2306953-A1 (FR)
Title: Adhesion promoter for resin - for coating granules used in resin concrete; comprises an oxide sulphide or sulphate
IPC: C04B26/04
Filed: 1975-04-08
Abstract: Granules are coated with a thermoplastic resin contg. a powdered additive which helps to develop the maximum adherence between the resin and the granules or a core body formed from the granules. Suitable additives include CuSO4, (NH4)2SO4, FeSO4, Fe2O3, CuO, ZnO, PbO, FeS, ZnS, NaCl, magnesium acetate iron and ammonium alums expanded mica and bauxites, in amts. of 0.5-12 wt. % w.r.t. the resin. Suitable resins are polyolefins esp. polyethylene in the form of scrap. Strong, low density concretes can be formed using low scrap resin contents, thus reducing the cost of the concretes.
Patent FR-2312345-A1 (FR)
Title: Unloading of concrete slab from drying rack - has travelling trolley with pivoted arm transferring slab to truck
Inventor: BERNARD MICHEL
IPC: B28B13/04
Filed: 1975-05-29
Abstract: Concrete panels are stored in a moving rack (13) to permit drying out. At the end of the cycle, they are discharged onto a horizontal table (10). A trolley (1), travelling on rails (2), approaches this table automatically and an arm (15) is placed across the panel width (11). This is gripped along the edges by hydraulic rams (18), against fixed stops (17). The trolley moves away and the arm pivots (16) to a vertical position and the trolley carries the panel to a wheeled truck (14), itself on similar guide rails (33). The panel (11) is deposited on the truck, seating on edge, the clamps are released and the cycle is repeated.
Patent FR-2274126-A1 (FR)
Title: Lifting mechanism for iron core laminations from stack - has adjustable cantilever arm with pneumatic or electromagnetic gripping shoes with variable settings
IPC: B65H3/08
Filed: 1975-06-05
Abstract: Lifting mechanism for iron core laminations of transformers, choke coils etc. which are stacked on a platform, insuring that a known number of plates (6) is handled during each operation. The lifting machine (1) has a cantilever arm (8) which can be raised or lowered in a vertical plane and rotated in a horizontal plane at any position. The cantilever arm is fitted with pneumatic or electromagnetic grips (3, 4, 5). The distance between the grips and the cantilever are adjustable. Similarly the distance of the surface of each gripping shoe above the lamina stack (7) can be varied. The shoe (3) nearest to the frame upright will grip on to the surface of the lamina first followed by the next etc. The lamina will therefore be deformed on the outward journey according to the spring (9, 10) settings of the different gripping shoes.
Patent FR-2317469-A1 (FR)
Title: Security lock for rolling screen - has three hinged sections fixed between roller and top slat which straighten when screen is closed and prevent lifting
IPC: E06B9/80
Filed: 1975-07-08
Abstract: The security lock for a rolling screen is fixed between the screen top roller (19) and the top slat (16) of the screen. The lock has three hinged sections (24-26) which have a scalloped underside to fit the curvature of the roller. Simple clips (29, 30) secure the hinging assembly to roller and to slat and when the screen is fully unrolled the assembly is straight. Any attempt to lift the screen will be resisted by the locking assembly and the screen can only be unrolled by rotating the roller.
Patent FR-2279007-A1 (FR)
Title: Drive for pipe line shut-off valve - rotates valve spindle with screw jack pushing rollers along helical slot
IPC: F16K31/528
Filed: 1975-07-17
Abstract: The drive is housed in a cylindrical casing (4) with a co-axial tube (3) provided with diametrically opposite longitudinal slots (21). The valve spindle (8) is welded to a tube (7) which abuts against the ring (10) which is supported by the bearing (9). The spindle (12) is driven by the belt (23) and pulley (22) and rotates in the bearing (13) and bush (11). As the spindle (12) rotates, it causes the nut (14) to move upwards since the nut is prevented from rotating by the rollers (19) running in the slots (21). The inner rollers (18) which run in the helical slots (20) in the tube (7) force the tube (7) and the valve spindle (8) to rotate and so close the valve.
Patent FR-2326082-A1 (FR)
Title: Decoder for double frequency message coded magnetically - converts message into binary pulses using reference pulse generators and counters
Inventor: TOUZET JACQUES
IPC: G06K7/016
Filed: 1975-09-24
Abstract: The decoder decodes a double-frequency message coded magnetically and converts it into binary pulses. The output of a fixed frequency oscillator is counted during the duration of each message bit defined by a change in magnetic flux. At the same time the count of the counter that has been reached during the preceding bit is counted backwards using an oscillator whose frequency lies between 1.1 and 1.25 times the first oscillator frequency. The message is scanned to determine whether the magnetic flux has undergone a transition or not (corresponding to binary 1 or 0 respectively) between the start of backwards counting and the passage through zero of the backwards counter.
Patent FR-2286129-A1 (FR)
Title: (Poly)aryl (poly)cyanates prepn - by interfacially reacting phenolate soln., org. cyanogen halide soln and tert amine
IPC: C07C317/14
Filed: 1975-09-26
Abstract: Aryl cyanates of formula R-(OCN)n (where R is >=1 opt. substd. aryl gps., which are bonded together by direct bonds, O, CO, OC(=O)O, S, SO2 or hydrocarbyl bridges; and n is 1-5) are prepd. by reacting an aq. soln. of the corresp. phenolate with a cyanogen halide dissolved in an org. solvent in the presence of a tert. amine, the two phase system being highly dispersed so that an interfacial reaction occurs. The process gives good yields of prods. having a high purity, as formation of by-prods. is minimised.
Patent FR-2332005-A1 (FR)
Title: Spinal column fatigue relieving appts. - has rings fitting round arms at armpit level and exerting lifting effect
IPC: A61H1/02
Filed: 1975-11-24
Abstract: The apparatus takes part of the weight of the upper part of the body so as to relieve fatigue on the spinal column of a person working in the same position for long periods, whether seated or standing. It has two upholstered rings (1, 2) fitting round the arms at armpit level and giving a certain amount of lifting effect. This effect can be exerted by a single rope from the spreader (3) joining the two rings, running over grooved pulleys (5, 6) and anchored to a spring. An adjusting knob can be provided for the spring, to regulate the lift.
Patent FR-2337436-A1 (FR)
Title: Alkali battery separator plates - consist of mesh with thin transverse wires to prevent accumulation of loss-making deposits
IPC: H01M50/466
Filed: 1975-12-29
Abstract: The separator, for an alkali battery, makes the battery more reliable by preventing current loss and short circuits between electrodes. The separator consists of a flexible mesh that encloses each electrode of the same polarity and is formed by crossed rods, some running parallel to the electrode axis and others inclined to this axis. The ratio of the thickness of the rods (3) running parallel to the electrode axis (2) and the thickness of those (4) inclined to this axis lines between 2 and 4. The relative thinness of the inclined rods means less deposit is formed on them and therefore less current is lost.
Patent FR-2343322-A1 (FR)
Title: Two position lever actuated switch - has open contacts at extreme positions and closes selected set of contacts when moved between extreme positions
IPC: H01H21/36
Filed: 1976-03-04
Abstract: An electrical switch with two positions has open contacts at the two extreme positions. It closes one set of contacts when moving in one direction and another set of contacts when moving in the opposite direction. It may be operated by a lever or a push-button. The switch has a moving contact (18) which comes into contact with a fixed contact (8) when the lever (5) moves in one (7) of two directions (7, 9). In the other direction (9) the moving contact (8) comes against another fixed contact (10). The moving contact (18) is separated from any one of the two fixed contacts (8, 10) when the lever is either in one of two extreme positions (5,2, 5.3). The switch lever (5) drives an insulating material sleeve with a boss (14). The boss (14) actuates a rocking mechanism restrained by a spring. The rocking mechanism moves the moving contact (18).
Patent FR-2310617-A1 (FR)
Title: Curable ethylene alkyl (meth)acrylate copolymer blend - with carbon black and organic peroxide, for strippable cable insulating shield (BE081176)
IPC: C08L101/00
Filed: 1976-05-06
Abstract: Curable semiconducting insulating shielding compsn. contains (based on the total wt. of the compsn.) 55-90, pref. 60-75% copolymer (I) of C2H4 and CH2:CR.COOR' (II) (in which R is H or Me, pref. H, and R' is 1-8C alkyl, pref. Et) with a (II) content of 27-45, pref. 29-35, esp. ca. 29 wt.%; 10-45, pref. 30-40% conductive C black (III); and 0.2-5, pref. 0.6-2% alpha,alpha'-bis-(tert. butylperoxy)-diiso-propylbenzene (IVa), 2,5-dimethyl-2',5'-di-(tert.-butyl-peroxy)-hexane (IVb), di-alpha-cumyl peroxide (IVc) and/or 2,5-dimethyl-2',5'-di-(tert.-butylperoxy)-hex-3-yne (IVd) as cross-linking agent.
Patent FR-2354206-A1 (FR)
Title: Imitation stained glass making method - includes moulding coloured glass pieces in thermosetting resin and cutting moulded block into slices
IPC: B44F1/06
Filed: 1976-06-09
Abstract: A method of making rectangular panes of imitation stained glass uses open topped box shaped container as a moulding vessel for making a slab of material which is afterwards cut into slices (7) by a circular saw (6), each slice forming a pane. Into the moulding vessel is discharged a random mixture of pieces of broken coloured glass of all types mixed with a thermo setting resin which may or may not be coloured. The glass pieces may be sorted before charging into the box to give the best effect possible. After hardening, the block is removed from the mould, and cut into slices.
Patent FR-2321496-A1 (FR)
Title: Solid sodium or potassium clavulanates prodn. - by alkaline hydrolysis of corresp. esters
IPC: C07D503/00
Filed: 1976-08-16
Abstract: Prodn. of high-purity, solid Na or K salts of clavulanic acid (I) comprises hydrolysing clavulanic esters pref. of formula (II): (R= is not >16C inert, stable organic gp. esp. 2-12C alkyl or aralkyl) in an aq. medium contg. a Na or K base, Pref. 0.9-1.5 equiv. base are used and is added at a rate sufficient to maintain pH 8.5-9.5. Hydrolysis of (II) avoids the use of expensive catalysts which are required in hydrogenolytic cleavage.
Patent FR-2324405-A1 (FR)
Title: Steel vessels of very large dia. for nuclear reactors - where vessel wall is made entirely by multi-electrode deposition welding (NL220377)
IPC: B23K9/00
Filed: 1976-09-16
Abstract: Thick-walled steel parts with rotational symmetry, esp. pressure vessels, are made by using deposition welding to build up the wall, where several consumable electrodes travel vertically upwards to form a wall with a desired profile. The novelty is the use of a radial row of electrodes which deposit several circular seams, each set of a seams formed by one electrode forming one wall zone, each electrode moves in a radial direction to deposit a row of seams. The wall zones can be made of materials with different mechanical properties and/or different corrosion resistance, and/or different resistance to H2. In the pref. plant, a turntable is used to rotate a cylinder being built up below a row of electrodes. Used for example the mfr. of pressure vessels and rings for nuclear reactors with dias. over 10 metres so the vessels etc. are too large for forging, and can be built on site to avoid transport problems.
Patent FR-2377169-A1 (FR)
Title: Multicoloured gold jewelry tube - has layers of different coloured gold plated on to central core
IPC: B23K1/19
Filed: 1977-01-13
Abstract: The manufacturing process for a wire or tube in multicoloured cold consists of plating on a central core (6) or base layers of different coloured gold. The central core can be solid or hollow and is made of 18 carat gold. At least one layer of different coloured gold is then plated on to the core which is then stretched and enlarged. The diverse layers are thus partly separated so that they are all partly visible. The product can then be stretched to the dia. required and can be used for articles of jewelry.
Patent FR-2378434-A1 (FR)
Title: Independently articulated harrow for agricultural seeder - has tine carrying arms with independent resilient connections to yoke for eliminating backlash
IPC: A01B49/06
Filed: 1977-01-31
Abstract: The blade (2) of the seeder is carried by arms (1) which are pivotally mounted on a yoke. The harrow tines (4) are carried by arms (3) which are laterally spaced from one another at the rear. One arm is longer than the other whereby the tines are staggered. The arms are also pivoted to yoke, above arms (1). The arm connections to the yoke adjust automatically to take up play. In each connection, a bolt passes through the arms and yoke and is secured with a nut. Conical members are interposed between the arms and yoke which co-operate with conical openings at each end of the bolt hole in the yoke. Opposed belleville washers are trapped between the head of the bolt and the adjacent arm.
Patent FR-2380273-A1 (FR)
Title: Imino-methyl-phenoxy-propionic acid derivs. - useful as hypocholesterolaemics, hypolipidaemics and uricosurics
Inventor: LAFOREST JACQUELINE
IPC: C07D333/22
Filed: 1977-02-14
Abstract: Phenoxypropionic acid derivs. of formula (I), their salts with bases and cpds. converted to (I) in vivo, are new: In (I), A is O or S. X1 is halo, H or CH3. R is H or 1-5C alkyl. X2 and X3 are H, halo or 1-5C akyl. R1 is H or 1-5C alkyl. -C(NOR)-is at the 2 or 3 posn. of the heterocycle and the cpd. is in the E and/or Z isomeric forms. (I) have hypocholesterolaemic, hypolipidaemic and uricosuric activities and are useful for treating or preventing cardiovascular disorders and gout. They have a better therapeutic index than the corresp. ketones and their LD50 is higher, generally >1 g./kg. orally in mice. In an example, ethyl 2- 2-bromo-4-(2-thienylhydroxy-iminomethyl)-phenoxy -2-methylprop- ionate was prepd. from the corresp. 4-(2-thenoyl)cpd. and NH2OH hydrochloride.
Patent FR-2382161-A1 (FR)
Title: Jack for turning reversible plough - is designed to reverse automatically at end of closing stroke using valves tripped at end of stroke
IPC: A01B3/421
Filed: 1977-03-03
Abstract: A reversible plough is turned by successive closing and opening strokes of a jack. Oil admitted at (6) into chamber (2) of the jack acts on piston (4) to close the jack, chamber (3) being connected to tank via passages (23, 20) chamber (16) and orifice (21). Near the end of the stroke valve (9) is depressed and allows oil in chamber (2) to pass through passages (8, 24, 19) to orifice (17) where it acts on valve (15) to lift it. Orifice (18) is now opened so oil from pipe (25) passes via channel (22) and passages (20, 23) into chamber (3), valve (15) now sealing the orifice (21). The jack now starts to extend on the rod area, whereupon valve (9) reseats sealing chamber (2) from chamber (3).