baber/WOPTO huggingface dataset:
Patent FR-2177490-A1 (FR)
Title: Welding torch - with torch body heat used to pre-heat electrode
IPC: B23K9/16
Filed: 1972-03-27
Abstract: Gas protected arc welding torch with a driven wire, comprises a metal body which can be electrically connected to a terminal of a suitable d.c. source, a pipe extended by a contact tube through which wire passes, and a gas outlet nozzle which can be connected to a gas source and which issues close to the free end of the contact tube. A gas distributor is mounted on the torch body and has an inlet orifice with a connection to a gas pipe and communicates with an orifice connected to the gas discharge nozzle via a heat exchange circuit between the gas and the torch body. This avoids heat loss by using the heat from the torch body to preheat the electrode.
Patent FR-2196201-A1 (FR)
Title: Decarbonising electrolysis electrodes - by periodic inversion of polarities in the electrolytic appts
IPC: C25B15/00
Filed: 1972-08-21
Abstract: Process allows composite materials e.g. noble metal coated Ti or metallic oxide coated materials to be used as anodes, and comprises subdividing the electrode assembly operating normally as cathodes into >=2 distinct gps. of cathodes alternated in space, each gp. being connectable at will to the positive or negative pole of the current source. Each of the gps. of cathodes is connected in turn for a short time to the current source so that they act as anodes and to ensure decarbonisation. The relative disposition and dimensions of the electrodes is such that the distance between two consecutive cathodes i.e. belonging to two different gps. is =e = S/L - s/l in which S = the surface of a cathode, L = the horizontal length of a cathode s = the surface of an anode, and 1 = the horizontal length of an anode.
Patent FR-2178216-A1 (FR)
Title: Deuterium oxide-enriched water - by decomposing water contg photosynthesis organism by irradiating with light
IPC: C01B5/02
Filed: 1973-03-29
Abstract: Water is enriched with D2O by adding a photosynthesis organism to the water, and irradiating with light to effect photosynthesis so that H2O is decomposed. Specif. the organism is a monocellular green alga, esp. chlorella or green chloroplast from a plant esp. spinach.
Patent FR-2223621-A1 (FR)
Title: Pipe coupling for smooth ended pipes - has rubber inner sealing sleeve supported by rigid outer sleeve
IPC: F16L21/00
Filed: 1973-03-26
Abstract: The ends of the pipes fit one into each end of a rubber muff with externally tapered ends. An outer sleeve of rigid material encloses the rubber muff with an internal taper at one end to match the muff taper. An internally tapered collar is inserted into the other end of the outer tube and is forced against the rubber muff, to ensure perfect sealing, by a threaded nut which is screwed into an internal thread in the end of the outer tube. The outer sleeve is in two parts, fluid pressure form the space between the pipe ends forcing the muff against the inner surface of the outer sleeve.
Patent FR-2183126-A1 (FR)
Title: Rotary mixer - with supplementary vibration to eliminate risk of clogging
IPC: B01F11/00
Filed: 1973-05-02
Abstract: A drive motor for the vertical mixer shaft and blade assembly is mounted on a rigid base plate on rigid corner pillars. The cylindrical housing for the mixing chamber is of elastic material and is mounted to the frame by vibration dampers top and bottom. It has a rigid reinforcing bar at one side, extending over part of its length and a vibrator unit is mechanically coupled to that bar. A side entry powder feed pipe, from above, includes an elastic coupling section and the base mixture outlet pipe has another elastic coupling section. Liquid spray nozzles passed through the sides are fed through flexible tubing.
Patent FR-2203231-A1 (FR)
IPC: G06F9/40
Filed: 1973-09-06
Abstract: Propagation delay testing is performed on a generalized and modular logic system that is utilized as an arithmetic/logical unit in a digital computer. Each arithmetic/logical unit of a computer is formed of arrangements of combinational logic networks and storage circuitry. The storage circuitry has the capability for performing scan-in/scan-out operations independently of the system input/output and controls. Using this scan capability, the method of the invention provides for the state of the storage circuitry to be preconditioned and independent of its prior history. Selected propagation paths through the system circuitry are sensitized by test patterns from an automatic test generator. By altering selected inputs and cycling controls applied to the networks of combinational logic and their respective associated storage circuitry, propagation delay indications through the selected paths are obtained to determine the status of these path delays through the logic system.
Patent FR-2200022-A1 (FR)
Title: Plastic stopper/piston for hypodermic syringe - partic pre-filled syringes
IPC: A61M5/24
Filed: 1973-09-19
Abstract: Hypodermic syringe of cylindrical section, comprises (a) a plastic stopper provided in the cylindrical section with a plastic body and equipment extending in sealing assembly against the cylindrical section; (b) the plastic body has an axially extending recess with an open end, over which extends a plastic membrane which can be pierced and is spaced from the open end, thereby closing the recess; (c) a hub is provided on which a hypodermic needle is fixed, with one end extending from the hub and fitted in the recess and piercing the membrane; (d) the stopper is injection moulded from an inert, flexible, thermoplastic resin and does not have the self-sealing props. of rubber; (e) the membrane is very thin, with a thickness of only a few hundredths or tenths of a mm. and tends to tear and not to seal round the needle when it is pierced thereby in order to make a connection between the needle and the contents of the cylindrical section; (f) equipment is provided between the oen end and the membrane which acts as a seal between the bore and the outer surface of this needle.
Patent FR-2208133-A1 (FR)
Title: Monochromatic silver halide emulsion for automatic processing - contains 2-alkyl hydroquinone 5-sulphonic acid or salt for superior development, shoulder sensitivity and contrast
IPC: G03C1/06
Filed: 1973-11-20
Abstract: In a photographic emulsion, suitable for automatic processing with activator soln./stabiliser soln at least one Ag halide emulsion or coat in effective contact with this contains 30-150 g/g atom Ag in the emulsion of a hydroquinone deriv. (I) of formula: (in which R is 2-8C alkyl, pref. n- or sec-butyl or n-hexyl, M is H or an alkali metal). (I) pref. is present in each Ag halide emulsion. The emulsion(s) or coat(s) in contact with these pref. also contain 30-150 g/g atom. Ag of hydroquinone.
Patent FR-2251647-A1 (FR)
Title: Loom stop motion - includes slide on shuttle which on yarn breakage projects from base of shuttle to actuate a switch
IPC: D03J5/00
Filed: 1973-11-21
Abstract: A stop motion for a loom comprises a slide element located in a recess in the base of the shuttle, the slide element being mechanically connected to weft yarn passing from a bobbin in the shuttle. When the weft yarn breaks its tension is reduced and the slide element is allowed to move so that it projects from the shuttle and acts on pref. a plunger-type switch on the shuttle track and thereby shuts down the loom. The arrangement can be used on all different kinds of looms, but is particularly suitable for Jacquard--type looms. The arrangement is cheap, robust, and operates consistently.
Patent FR-2257760-A1 (FR)
Title: Prefabricated parallelepiped burial vault - has flat sections and angle-pieces jointed at their facing vertical edges
IPC: E04H13/00
Filed: 1974-01-10
Abstract: The angle-pieces (11-1, 11-2, 11-3, 11-4) and the flat sections or panels (12-1, 12-2) are joined together along their vertical edges. Each angle-piece is of horizontal square cross-section with two sides (13, 14) of unequal length. Adjacent edges of the sections have vertical grooves (15) down, and horizontal projections or copings (16) spaced out along the height are for coffin support plates to rest on. These prefabricated sections are erected on the top surface (17) of a concrete foundation (18). They are temporarily fixed by means of a metal frame (19) resting on the foundation. When assembled, a top frame (21) is placed on top, with its inside edge (22) holding a marble slab. The metal framework (19) is then removed. The bottom part is kept water-tight by means of a coping (23).
Patent FR-2270412-A1 (FR)
Title: Insertion of steel rods into concrete wall - has rods forced down by adaptors retained in housing clipped over top of wall
IPC: E04G11/22
Filed: 1974-05-10
Abstract: An arrangement for insertion of vertical steel reinforcing rods into interlocking concrete blocks which form a double wall with a layer (3) of insulation between them, includes a sleeve (4) through one outer set of blocks (1) threaded (9) at the bottom, and a similar sleeve (5) through the other blocks (2) into which are inserted the steel rods (7) threaded at the top (8). These rods pass through horizontal cross members (13, 22) held over the top by a pair of spring clips (16) which grip between them vertical clamping plates (14, 15) to hold them against the outer blocks. The rods are forced downwards by adapters (10) with internally threaded sleeves and lower flanges (11) attached to the cross members by forked brackets (12) and screwed on top of the steel rods (7).
Patent FR-2271190-A1 (FR)
Title: Bisphenol A prodn - by reaction of phenol and acetone in presence of acid catalyst and ethyl mercaptan
IPC: C07C37/78
Filed: 1974-05-17
Abstract: Continuous process for prodn. of 2,2-bis(4-hydroxyphenyl)-propane (I) by reaction of phenol and acetone in the presence of an acidic catalyst and ethyl mercaptan at 60-85 degrees C, followed by removal of a light fraction from the reaction mixture by distillation and purifn. of the remaining reaction mixture, in which the reaction is in a single stage, an aromatic hydrocarbon solvent is added to azeotrope a light fraction from the reaction mixture by distillation, followed by solvent extraction of phenol. The reaction can be carried out with a more efficient control of temp. and in a simpler installation, with thermal decompsn. avoided by using temps. 150 degrees C. Prior art problems of phenol-contg. condensate disposal are avoided.
Patent FR-2240001-A1 (FR)
Title: Benzo-dipyran ketone derivs - for treatment of allergic disorders, e.g. asthma, hay fever and gastro-intestinal allergies
IPC: C07D493/04
Filed: 1974-08-01
Abstract: Benzodipyran derivs of formula (I) are novel. (in which two of P, Q, R and T, in adjacent positions, represent a chain of formula -COCH=C-(CORx)-O- or -COCH=C(COOH)-O-, and the other two of P, Q, R and T are independently H, halogen, alkyl, alkoxy, OH, alkenyloxy; and Rx is -CHR2COR1, where R1 is alkyl, alkoxy, phenyl, NH2, or mono- or di-alkylamino, and R2 is H or COR3, where R3 is alkyl, alkoxy, NH2, or mono- or di-alkylamino, or R1 and R2 together may form a 3 or 4C alkylene chain opt. interrupted by NH and opt. substd. by >=1 alkyl gps, and/or opt. substd. on the C atom alpha to the methinic proton with =0) and include the pharmaceutically acceptable derivs of (I). (I) are used in the treatment of allergic and intrinsic asthma, hay fever, eye disorders e.g. trachoma, urticaria and a typical eczema and gastrointestinal allergies, esp. milk allergies in infants.
Patent FR-2240371-A1 (FR)
Title: Flow operated free flow breaker switch - has opposing orifices connected directly and one indirectly to a pressure supply
IPC: F15C4/00
Filed: 1974-08-09
Abstract: Flow medium operated free flow breaker switch which prevents dirt deposits building up at the orifice edge zones, with two opposing, spaced orifices in the housing gap. The main orifice is connected directly to a hydraulic pressure supply through a main channel and the approach flow orifice is connected to the same supply via a branch channel including a hydraulic resistor. A sensor channel is fitted to the approach flow orifice in the flow direction behind the hydraulic resistor. The outer walls of the housing gap connect to the orifice openings in a streamlined manner within a region close to the orifice.
Patent FR-2281995-A1 (FR)
Title: Coating stainless steel with tin - by dipping into a bath of molten tin which produces a tin layer contg. iron
Inventor: GALLAND JACQUES
IPC: C23C2/08
Filed: 1974-08-14
Abstract: Steel, and esp. Ni-Cr steel, is provided with a tin coating contng. Fe by dipping into a bath of molten Sn at 400-650 degrees C. for 48-100 hr. The steel is taken from the bath and the outer layer composed of FeSn2 is removed, so that the tin coating is composed of FeSn contng. Ni and Cr. The treatment is carried out for a period so as to give a Sn-base coating 100-200 mu thick, pref. a FeSn-base coating 50-100 pref. 50-70 mu thick.
Patent FR-2289461-A1 (FR)
Title: Cement clinker prodn. at low temp. - by forming alkaline earth chloride from carbonate and hydrolysing
IPC: C04B7/36
Filed: 1974-11-04
Abstract: Cement clinker is produced by (i) reacting, at low temp. HCl with a mixture comprising mainly clay and an alkaline earth carbonate, (ii) hydrolysing with steam, at high temp., the alkaline earth chloride produced and (iii) recycling the HCl gas released to (i). Thermal economies are made since the heat from the cooling cement clinker is used to convert water into steam and since reaction (i) is highly exothermic. Limestone is pref. used as the alkaline earth carbonate and the clinker obtained pref. has the compsn. 55% Ca3SiO5, 22% Ca2SiO4 12% Ca3Al2O6, 8% 4CaO.Fe2O3.Al2O3 and 3% impurities. The hydrolysis is carried out at 600-900 degrees C, pref. to avoid evaporation of the CaCl2 the temp. should be 782 degrees C.
Patent FR-2291871-A1 (FR)
Title: Paintbrush tracing guide for sign writing - has component alongside bristles detachably secured to brush
IPC: A46B17/00
Filed: 1974-11-21
Abstract: The guide is particularly for use when sign writing, having a component (4) extending for at least part of the height of the bristles of the brush, and with a fixing device detachably securing it (6) to the brush. The component can have two half-shells (4, 4a) at right angles to each other, the fixing device having an elastic component passing round the brush, typically an elastic strip of the same material as the half-shells, with a ball end fitting in a hook. The strip can consist of a series of lozenge-shaped geometrical figures. There can be a guide finger extending from the side of the half-shells.
Patent FR-2299294-A1 (FR)
Title: Water-soluble fertiliser - prepd. by addn. of urea, phosphoric acid and potassium salt
IPC: C05B17/00
Filed: 1975-01-28
Abstract: A method of manufacturing a water soluble mixed fertilizer composition in solid form including adding urea to phosphoric acid, followed by addn. potassium salt to the resultant mixture and agitating the mixture.
Patent FR-2263246-A1 (FR)
Title: 3-Benzo-furyl-coumarin cpds., prepn. - from benzo-furan-acetic acid deriv. and salicyl-aldehyde and use as optical brighteners and dyes
IPC: C07D311/08
Filed: 1975-03-03
Abstract: 3-Benzofurylcoumarin cpds. are novel cpds. of the formula (I): (where A1, is H, Me, MeO, EtO, PhCH2O, HOCH2CH2O, Cl, Br, NMe2 or NEt2; A2 is H, Me, Cl or Br; R1 is H, Me, MeO, EtO, PhCH2O, HOCH2CHO, Cl, Br 2-8C dialkylamino, pyrrolidino, piperidino, morpholino, piperazino, N-methylpiperazino, CH2Cl, CH2Br or -(-CH2NB2B'n) circled positive n (X circled negative)n; the B gps. independently are H, opt. substd. alkyl, cycloalkyl, phenylalkyl or phenyl or together with N form a 5- or 6-membered heterocycle; B' is H, 1-4C alkyl, hydroxyalkyl, CN.CH2CH2, carbalkoxymethyl beta-carbalkoxyethyl, ClCH2.CHOHCH2, MeOCH2CHOHCH2, PhOCH2CHOCH2 or PhCH2; n=0 or 1; R2 is H, Me, MeO, EtO, PhCH2O, Cl or Br; and X - is an anion). (I) (which generally are colourless to pale yellow) are used as optical brighteners for polyamide, cellulose ester, polyeters and acrylonitrile polymer textiles and paper and in detergent compsns, giving intense blue fluorescence. Cpds. (I; R1= 7-dialkylamino), which are brilliant yellow fluorescent dyes, are used for dyeing synthetic polyamides and polyesters, for printing textiles and in the prodn. of daylight fluorescent pigments.
Patent FR-2264959-A1 (FR)
Title: Oil well blowout preventer with lantern seal - is universally applicable to wide tube dia. range
IPC: E21B33/06
Filed: 1975-03-18
Abstract: A blow-out preventer for natural gas and oil wells consists of two jaws, each of which encloses a rubber seal with a ring of smaller dia., joined by a web to two rings of larger dia. Pairs of cams on both ends of the half-seals can be swivelled by semi-circular inserts; their inside radius corresponds to the radius of the largest tube which is to be sealed. This makes the preventer universally applicable for a wide range of tube dias. It is of simple design, is easy to mfr., and has a high functional reliability combined with a long service life.
Patent FR-2304039-A1 (FR)
Title: Prefabricated panel for constructing building walls - contains heating elements and solar radiation collectors in insulated casing
IPC: F24J2/51
Filed: 1975-03-13
Abstract: The wall panel has a rectangular casing (1) which encloses all the components. Along one side it contains electric heating elements (2) between layers of insulation (3, 4). Behind this is a slab of thermally insulating material (5). A duct (6) is within this slab, and conduits can be run through it. On the outer side of the thermal insulation is a vapour barrier (7). In the space behind this there is a solar radiation absorber (8) separated from the outside of the casing by a layer of double glazing (9). The side of the casing in the space containing the radiation absorber (8) has a channel (11) for drainage of condensed moisture.
Patent FR-2303751-A1 (FR)
Title: Folding mast for mobile crane - has cable operated sliding pin with two locations in slot for folded and extended positions
IPC: B66C23/34
Filed: 1975-03-14
Abstract: The mast (4) of the mobile crane has its end folding section hinged (8) to the penultimate section (6). A bracket containing a slot (9) is fitted to this penultimate section. A pin (10) fits in this slot and has a cable (13) passing over a pulley (14) and attached (15) to the end section. Another cable (12) runs in the opposing direction and operates the pin. With the pin at one end of the slot, the end section is folded downwards at 90 deg. When the pin is pulled by the cable to the other end of the slot, the end section is in the working position.
Patent FR-2305750-A1 (FR)
Title: Spectacles frame for sports players - has flexible plastic shock absorbing components between frame parts
IPC: G02C5/02
Filed: 1975-03-25
Abstract: The spectacles frames have a lens carrying face (1) and articulated arms connected to this face using hinges. A plastic component (3) having leastic properties is placed between two constituent parts of the frame which is made from a rigid material. The plastic component is in the form of a T, the vertical part of which carries the bridge (3p). The plastic component is mounted to the frame using a tongue and groove system.
Patent FR-2266525-A1 (FR)
Title: Tennis racquet handle with perforations at extremity - has a central channel communicating with transversal holes
IPC: A63B49/08
Filed: 1975-04-03
Abstract: The extremity of the handle (4) is perforated to keep it dry during play and to reduce shocks transmitted from the strings. The central longitudinal channel (5) is open at, at least, one of its extremities and is reinforced (9), the open end being reinforced by an internal support ring. It communicates with transversal holes which join it to perforations on the outside of the handle. The handle is covered by a ribbon which is perforated, the perforations communicating with the transversal holes. Instead of perforations the surface of the handle can have open longitudinal grooves which communicate with the aeration holes.
Patent FR-2310332-A1 (FR)
Title: Cuprous acetylide ethynylation catalyst - for producing alkynols by low pressure reactions
IPC: B01J31/22
Filed: 1975-05-05
Abstract: Low pressure prepn. of butynediol comprises reacting formaldehyde and acetylene at 60-120 degrees C and 2 atmos. partial pressure of acetylene in an aq. medium under agitation in the presence of an ethynylation catalyst consisting of a water-insoluble cuprous acetylide powder contg. 5-20 wt % Cu, 0-3 wt % Bi and a Mg silicate carrier. The copper impregnated Mg silicate catalyst cannot be detonated or burned, unlike most Cu-contg. catalysts of prior art.
Patent FR-2310574-A1 (FR)
Title: Testing semiconductors in or out of circuit - is performed using portable instrument testing for gain or state
IPC: G01R31/26
Filed: 1975-05-07
Abstract: A portable self contained instrument is used to test semiconductor devices including FET and unijunction transistors and thyristors. Tests can be performed without disconnection of the semiconductor from its circuit. A semiconductor such as a transistor being tested is connected to the emitter (E), base (B) and collector (C) terminals on the test set. Batteries (B1, B2) are connected to the transistor through switches (I2, I3) and the supply is inverted by another switch (I) which permits connection to either NPN or PNP devices. A multivibrator circuit (T3, T4) provides a signal with which the amplification of the transistor under test is checked. A signal test circuit (T1, T2) checks the state of the transistor which is observed on indicator lamps (M1, M2).
Patent FR-2310836-A1 (FR)
Title: Carousel machine for vibratory finishing treatment - has annular ring with individual compartments
IPC: B24B31/073
Filed: 1975-05-13
Abstract: The machine comprises a motor with an eccentric weight mounted on springs, the vibrations providing the tumbling action. Around the hopper (5) is an annular ring (8), forming a circle of revolution in one plane and fitted with fixed partitions (14) providing individual compartments (P1 to P15). Each is filled with the finishing agent, (30) and an item (29) to be treated, as the carousel rotates (f) about its central axis. After one turn, the agent is released through a sieve (22) into a box (26) underneath, and the item removed from (P14). The finishing agent passes under a baffle plate (27) and is fed through an aperture (21) back into the carousel (P15).
Patent FR-2311016-A1 (FR)
Title: (Hexahydro)rifamycin-(3)-alkyl-carbazate - used as an antibiotic with good solubility in the digestive tract
IPC: C07D498/08
Filed: 1975-05-16
Abstract: New derivs. are of formula (I) R1-CH=N-NH-CO-OR (where R1 is rifamycin residue or 16,17,18,19,28,29-hexahydro rifamycin residue, substd. in the 3-posn.; R is lower alkyl, opt. substd. by methoxy). (I) are esp. active against Gram positive bacteria and are also useful in the treatment of viral tumours. They are well absorbed by the digestive tract. (I) are prepd. by reaction of formyl (hexahydro) rifamycin with an alkyl carbazate. In an example, 7.26 g. 3-formyl rifamycin SV in ethanol was treated with 0.9 g. methyl carbazate to give (I; R is rifamycin; R is CH3).
Patent FR-2313783-A1 (FR)
Title: Butt jointed light conductor cable - using pref. plastic sleeve having contraction coefft. 5 to 10 times that of cable sheath
Inventor: BERGE JEAN
IPC: H01P1/04
Filed: 1975-06-04
Abstract: A light conductor cable is encapsulated in a sheat internally of which is provided a helical wire winding. Two ends of the conductor cable are butt jointed using a sleeve which surrounds the joint. The sleeve has a coefft. of contraction when heated which is 5-10 times greater than that of the sheath so that after the sleeve has been positioned and heated it contracts to firmly hold the abutting ends of the cable together. The cable can be cheaply joined ensuring an accurate joint.