baber/WOPTO huggingface dataset:
Patent GB-1459285-A (GB)
Title: Process for the preparation of cyclopropane carboxylic acid  esters
IPC: B01J23/00
Filed: 1974-12-03
Abstract: 1459285 Cyclopropane carboxylic acid esters IMPERIAL CHEMICAL INDUSTRIES Ltd 21 Nov 1975 [3 Dec 1974] 52231/74 Heading C2C The invention comprises a process for the preparation of an ester of 3-(2,2-dichlorovinyl)- 2,2 - dimethylcyclopropane carboxylic acid which comprises the steps of (a) causing an ester of glycine in the form of a water-soluble acid addition salt to react with an alkali metal nitrite in an aqueous medium in a first vessel, said aqueous medium being in interfacial contact with a solvent having a boiling point less than the boiling point of 1,1-dichloro-4-methyl-1,3- pentadiene and which is immiscible with the said aqueous medium and into which the ester of diazoacetic acid thus formed is preferentially dissolved, (b) continuously transferring a stream of said solvent containing the ester of diazoacetic acid into a second vessel containing an excess of 1,1-dichloro-4-methyl-1,3-pentadiene held at a sufficiently high temperature that the solvent is readily distilled therefrom, there also being present a catalyst to catalyse the release of nitrogen from the initial reaction product of the reaction between the ester of diazoacetic acid and 1,1-dichloro-4-methyl-1,3-pentadiene to form the ester of 3-(2,2-dichlorovinyl)-2,2- dimethylcyclopropane carboxylic acid, and (c) removing the mixture of the diene and the ester of 3-(2,2-dichlorovinyl)-2,2-dimethyl-cyclopropane carboxylic acid from the second vessel and distilling the diene from the said mixture.
Patent GB-1237199-A (GB)
Title: Thickened liquid bleach compositions
IPC: D06L3/06
Filed: 1968-11-08
Abstract: 1,237,199. Thickened bleach solutions. COLGATE-PALMOLIVE CO. 8 Nov., 1968 [13 Nov., 1967], No. 52987/68. Heading DIP. [Also in Division Cl] Aqueous bleach solutions are thickened by the addition thereto of a mixture of a negatively charged clay and a positively charged clay. Aqueous solutions of alkali metal hypochlorites, trichlorocyanuric acid, dichlorocyanuric acid and the sodium, potassium and ammonium salts thereof, chlorinated hydantoins and chlorinated trisodium phosphates may be thickened. The compositions may contain 0.25-10% by weight of each of the negatively and positively charged clays. The clay carrying a negative charge may be a hectorite or sodium aluminosilicate sol and the clay carrying a positive charge may be a colloidal alumina having acetate groups absorbed on the surface thereof, alumina-coated silica or chemically modified alumina.
Patent GB-1267438-A (GB)
Title: Polyarylene polyether compositions
IPC: C08L71/00
Filed: 1969-10-31
Abstract: 1,267,438. Polymer compositions. UNION CARBIDE CORP. 31 Oct., 1969 [31 Oct., 1968], No. 53351/69. Headings C3P and C3R. A polyarylene polyether composition comprises from 5 to 95% by weight of a rubber modified polyacrylate based on the total weight of the composition. The polyacrylate may contain 1 to 75% by weight of rubber, based on the total weight of rubber and polyacrylate. The composition may also contain from 1 to 20% by weight of the rubber modified polyacrylate and polyarylene polyether, of an organopolysiloxane or a polyester. In examples, the polyarylene polyethers also contain dimethyl methylene groups, sulphone groups, methylphenyl methylene groups, vinyl cyclohexane groups and ketone groups, as well as phenylene groups oxygen atoms; the polyacrylates used are poly- (methyl methacrylate), methylmethacrylate/ styrene/acrylonitrile copolymer, poly-(ethylmethacrylate) and poly-(ethylacrylate) and are modified with styrene-butadiene rubbers and acrylonitrile - butadiene - styrene rubbers. One composition (Example 22) also contains silica and a polydimethylsiloxane oil.  Uses.-Mouldings, films, coatings, threads, filaments, gaskets, bearings, in varnishes and paints and for electrical insulation.
Patent GB-1263198-A (GB)
Title: An insulation unit for pipes
Inventor: VOLBERG FRED JOSEPH
IPC: F16L59/11
Filed: 1970-11-11
Abstract: 1,263,198. Pipe insulation; insulated bends and T-pieces. ASSOCIATED INSULATION OF CALIFORNIA. 11 Nov., 1970, No. 53548/70. Headings F2G and F2P. A pipe insulation unit comprises two shells 16, 16a, e.g. of metal, secured together to surround a pipe, each containing insulating material 18, 18a covered by a perforated metal screen or wire mesh, both flexible, the shells having protuberances 24 penetrating into the insulation, to retain the insulation. Such units are shaped to surround pipes, pipe bends and T- pieces, the ends of the shells 16, 16a extending beyond their respective insulation parts to overlap adjacent conventional insulation. The shells 16, 16a are secured together by latches engaging hooks, and one of the shells 16 has its longitudinal edges extending beyond its insulation to overlap the other shell 16 upon securing. The insulation is of rock wool, asbestos or mineral fibre, glass fibre, &c.
Patent GB-1367620-A (GB)
Title: Clarification apparatus
IPC: B01D21/00
Filed: 1971-11-19
Abstract: 1367620 Settling tanks WIEBAU WESTDEUTSCHE INDUSTRIE-UND STRASSENBAU-MASCHINEN GmbH 19 Nov 1971 [30 Nov 1970] 53808/71 Heading BID Suspended particles are separated by gravity from a liquid as it flows through a tank which contains a double wall 2 having an inlet opening 3 at the top and an outlet opening 4 at the bottom, each opening extending the length of the double wall, the liquid flowing through the double wall to a settling zone 1, the wall being pivotably mounted at 5 with distancing members 6 for adjusting its inclination so as to vary the volume of the settling zone. Sludge settles in the lower part of the tank; and the clear liquid collects in channel 11. Sludge is discharged through pipes 7 by means of air-lift pumps 9. Pipes 7 are mounted by means of rollers on the pivoted side of double wall 2.
Patent GB-1135955-A (GB)
Title: Method of making clinker for calcium aluminate cement
IPC: C04B7/32
Filed: 1965-12-20
Abstract: 1,135,955. Cement clinker. UNITED STATES STEEL CORP. 20 Dec., 1965 [15 Jan., 1965], No. 53932/65. Heading C1H.  Clinker for grinding into calcium aluminate cement is obtained by sintering at 50‹ to 460‹ F. below its melting point for at least 5 mins. a mix of 52-74% Al 2 O 3  (containing incidental quantities of TiO 2 ); 0À5-4À0% Fe 2 O 3 ; 23-42% CaO; 0-6% SiO 2  and up to 5% of miscellaneous components. Limestone with 60-70% of bauxite is specified as is sintering at 2400‹-2500‹ F.
Patent GB-1222449-A (GB)
Title: Process for preparing pure human albumin from solutions containing haemopigments
Inventor: KISELEV ANATOLY EFIMOVICH
IPC: C07K14/765
Filed: 1968-11-15
Abstract: 1,222,449. Human albumin. TSENTRALNY INSTITUT GEMATOLOGII I PERELIVANIA KROVI. 15 Nov., 1968 [15 Nov., 1967], No. 54323/68. Heading C3H. In a process for the preparation of pure human albumin from solutions containing haemopigments, salts are added to an albumin fraction containing alpha- and beta-globulins so as to give an ionic strength from 0À2 to 0À6, ethanol is added to the solution so that its concentration in the solution is from 30% to 50% by volume, the pH of the alcoholic solution is adjusted to 6À0-6À8 and the resulting precipitate of globulins and haemopigments is separated from the solution. The salts added may be sodium chloride, sodium citrate and ammonium sulphate. The mixture may be cooled to 0‹ to - 6‹ C. before adjusting the pH, then further cooled to - 7‹ to - 20‹ C.
Patent GB-1430615-A (GB)
Title: Polyphenylene ethers
IPC: C08G65/46
Filed: 1973-11-27
Abstract: 1430615 Polyphenylene ethers CHEMOPETROL 27 Nov 1973 [28 Nov 1972 13 Dec 1972] 54888/73 Heading C3R Polyphenylene ethers are obtained by reacting a phenol of formula where R<SP>1</SP> and R<SP>2</SP> are methyl, ethyl or phenyl groups and R<SP>3</SP> and R<SP>4</SP> are hydrogen atoms or methyl, ethyl, methoxy or ethoxy groups, with oxygen or an oxygen-containing gas, in solution, emulsion or suspension, in an alcohol-free solvent or a solvent containing at least 20% by volume of the reaction mixture of an alcohol, in the presence of a complex formed from a non- basic cupric salt and morpholine or a C-substituted morpholine derivative. The cupric salt may be present in a concentration of 0À001 to 0À2 mole/litre and the morpholine in a concentration of 1 to 200 ml./litre. The reaction may be carried out at 0‹ to 80‹ C. Copolymers and graft polymers are obtained by adding a phenol of formula where R<SP>1</SP>, R<SP>2</SP> and R<SP>4</SP> are hydrogen, alkyl or aryl and R<SP>3</SP> is alkyl or aryl, during or after the polymerization of the phenol of Formula I. The phenol of Formula II is used in an amount of 2% to 10% of the weight of phenol of Formula I or the polymer obtained from it. In examples the catalysts are complexes obtained from morpholine and cupric chloride, cupric bromide and cupric nitrate and the phenols are 2,6- xylenol, 2,6-dimethyl phenol, 2,6-diphenyl phenol, 2,4-xylenol, a mixture of polymerized 2,6- xylenol p-cresol and o-cresol alkylated with a polypropylene.
Patent GB-1401490-A (GB)
Title: Bronchodilatory and/or bronchial spasm reducing compositions
IPC: A61K31/557
Filed: 1972-11-30
Abstract: 1401490 Nebuliser compositions AMERICAN HOME PRODUCTS CORP 30 Nov 1972 [2 Dec 1971] 55253/72 Heading A5B A nebuliser for the administration of a bronchodilating and/or .bronchial-spasm-reducing composition by the oral inhalation route contains a composition comprising a compound of general formula wherein R is H,C 1 -C 6  alkyl, alkali metal or a pharmacologically acceptable cation derived from ammonia or a basic amine, and a pharmacologically acceptable inhalation carrier. A composition for use in a pressurised aerosol dispenser comprises the active compound and a pharmaceutically acceptable propellant. Reference has been directed by the comptroller to Specification 1040544.
Patent GB-1125160-A (GB)
Title: Light-sensitive materials for use in the production of printing plates and printing plates produced therefrom
IPC: G03F7/021
Filed: 1965-12-31
Abstract: 1,125,160. Photo-sensitive materials. AZOPLATE CORP. Dec.31, 1965 [Jan.2, 1965], No. 55444/65. Heading G2C. A light-sensitive material comprises an aluminium support coated with an intermediate layer of a phosphonic acid or a derivative thereof and then with a layer containing a diphenylamine-4-diazonium salt/formaldehyde condensate and an aminoformaldehyde resin. Up to 50% of the resin may be replaced by another resin such as polyvinyl acetal or an alkyd resin (which is not oil modified) or an epoxide resin (see Specifications 1,063, 558 and 1, 063, 559). In the examples, an aluminium support is immersed in ammonia to produce a Bohmit layer treated with polyvinylphosphoric acid (and optionally vinylphosphoric acid) and then coated with the diazo formaldehyde condensate and the urea- or melamine/formaldehyde resin and optionally 10% by weight of total resin of polyvinyl acetal or an unmodified alkyd resin. The material is imagewise exposed and developed in a gum arabic/magnesium nitrate solution to produce a printing plate.
Patent GB-1203983-A (GB)
Title: Piston valves
Inventor: SEGERS HENRI HUBERT MARIE JOSE
IPC: F16K3/24
Filed: 1967-12-07
Abstract: 1,203,983. Valves. H. H. M. J. SEGERS. 7 Dec., 1967 [12 Dec., 1966; 23 Jan., 1967], No. 55661/67. Heading F2V. A valve has a piston 2 of hard synthetic material surrounded by a cylindrical cover 4 of flexible and compressible synthetic material and an outer cylindrical cover of thin rigid material e.g. P.T.F.E. which has a low coefficient of friction with the valve body 1<SP>1</SP> of glass, metal or synthetic material. The covers 4, 5 fold over into a groove 2<SP>1</SP> of the piston which is integral with a cap 3 that is internally threaded and in engagement with external threads on the body 1<SP>1</SP>. The diameter of the piston with its covers is greater than that of the valve body interior. In modifications the piston is threaded in a bore of the cap,is downwardly flared, has its end received with clearance in a housing of the cap so as to be relatively rotatable and is formed with a flat end with rounded edges or a spherical end. In the ease of the piston threaded into a bore of the cap a depending annular projection on the cap sits on a sloping face of the piston to seal the valve when open.
Patent GB-558117-A (GB)
IPC: F02P1/08
Abstract: 558,117. Ignition systems. ROTAX, Ltd., and HULBERT, I. J. June 17, 1942, No. 8296. [Class 7 (iv)] [Also in Group XXXVII] In a system in which current is supplied at starting to the primary winding a of the magneto from the secondary e of a transformer having a trembler interrupter i in the circuit of its primary f and battery g, a trembler interrupter j is also provided in the circuit of the windings e, a. As shown, the interrupter i comprises an adjustable contact o and a contact n on a resilient metal blade k secured to a fixed support m. The interrupter j comprises a contact r on the blade k and insulated therefrom, and a contact q carried by a second resilient blade p on the support m. The blade p is provided with an iron armature s attracted by the core h of the transformer to close the interrupter j and thus to open the interrupter i so that a current. impulse is supplied to the magneto winding a. A condenser u may be arranged across the contacts of each of the interrupters i, j.
Patent GB-1361917-A (GB)
Title: High-tension insulators
IPC: B29C39/02
Filed: 1972-12-04
Abstract: 1361917 Insulator ROSENTHAL STEMAG TECHNISCHE KERAMIK AG 4 Dec 1972 [15 Dec 1971] 55905/72 Heading H2C [Also in Division B5] A high tension insulator comprises a stack of umbrella shaped portions 4, 5 &c. cast one at a time on to a stem 3 (see Division B5) using, e.g., epoxy resin containing glass fibres. Suspension fittings 7, 8 are attached at each end. The "umbrellas" may be angular or oval in crosssection and have undercuts formed by removable moulding cores, and the insulator may be hollow for use as a transformer bushing (Fig. 5, not shown). Specification 1,316,059 is referred to. (For Figure see next page.)
Patent GB-1448125-A (GB)
Title: Aluminium-aluminium oxide composite materials
IPC: C22C32/00
Filed: 1973-12-04
Abstract: 1448125 Dispersion-hardened alloys NIPPON TELEGRAPH & TELEPHONE PUBLIC CORP 4 Dec 1973 [21 Dec 1972 22 Feb 1973] 56185/73 Headings C7A and C7D An Al-Al 2 O 3  or Al alloy - Al 2 O 3  composite containing 0.01-0.2 wt per cent Al 2 O 3  is formed from oxidized Al powder having a grain size of 40-100 microns by compacting the powder hydrostatically and sintering at 660‹-700 C for 0.5 to 1.5 hours. The resulting composite has a conductivity of 57-64% IACS. The powder (preferably atomized) may contain up to 1.6% Si, up to 0.28% Zr, up to 1% Ti, and up to 1.8% Mn, and may also contain small amounts of Fe, V, Cu. The sintering is carried out in vacuum, reducing gas, e.g. H 2 , or inert gas, e.g. Ar. The composite may be subsequently annealed.
Patent GB-1098533-A (GB)
Title: Improvements in or relating to apparatus for detecting hydrocarbons
Inventor: REECE DONALD
IPC: G01M3/20
Filed: 1966-12-19
Abstract: 1,098,533. Detecting gases electrically. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Dec.19, 1966, No.56731/66. Heading G1N. In a lightweight portable hydrogen flame ionization detector for detecting leaks of hydrocarbons from gas mains or service pipes, air is continuously sampled by being sucked into a probe 20 and pumped through a minor flow-rate path 11 to a burner 3 where it is mixed with hydrogen and also through a major flow-rate path 14 to the detector chamber to provide a supporting atmosphere for the flame and to remove products of combustion from the interior of the detector. A third path 18 may lead direct to the atmosphere or through the outer casing 26 to provide a downdraught. Glass wool 28 prevents draughts entering the detector. Flowmeters and filters 12, 15 are provided in the paths 11, 14. The burner itself serves as one electrode, the other being a hollow cylinder 2 at a potential of + 100 volts. Variations in current due to the presence of hydrocarbons in the sampled air are converted into frequency variations fed to headphones 25. In a modification, Fig. 2 (not shown), the sampled air is pumped through a filter (31) and then divides between a capillary (35) leading to the burner and a wider branch (36) leading to the chamber. A visual indicator may be provided.
Patent GB-1456833-A (GB)
Title: Moulding
IPC: B29C49/66
Filed: 1972-12-08
Abstract: 1456833 Cooling articles HUNKAR LABORATORIES Inc 7 Dec 1973 [8 Dec 1972] 56787/72 Heading B5A A mould and/or an article in the mould, e.g. produced by blow-moulding, is cooled by means of compressed air at a pressure of at least 200 p.s.i. which is then expanded adiabatically so that it thereafter absorbs heat from the article and/or the mould. The air may be introduced into the moulding or into passages in the mould and is preferably at at least 1000 p.s.i. The air may be dry or contain water vapour. As shown, a bottle 3 is blow-moulded in cavity 2 of a mould 1 by air, e.g. at 80 p.s.i. supplied through inlet 5. The mould 1 has coolant passages 6 and sensors 7, 8, 9 to feed the bottle skin temperature and mould temperature to controller 11, which may also be manually set by line 12. A pipe 13 has one end 14 connected with the air source and the other end being forked to two nozzles 15, 16, both preferably variable in the neck of bottle 3 and in passages 6 respectively. Air flow is controlled by pressure setting device 17 and valve 19 controlled by controller 11 and timer 21.
Patent GB-1281386-A (GB)
Title: Circuit for the photo electric ignition of an electronic flash tube
IPC: H05B41/32
Filed: 1969-11-21
Abstract: 1281386 Supply circuits for flash tubes MULTIBLITZ DR ING D A MANNESMANN GmbH & CO KG 21 Nov 1969 [6 Dec 1968] 57018/69 Heading H2H A circuit for igniting a flash tube includes a photo-transistor which feeds a pulse through a transistor amplifier to a thyristor, causing a capacitor to discharge through a transformer whose secondary winding is connected to an ignition electrode of the tube. In the arrangement shown, activation of a photo-transistor 46 causes a signal to pass by way of a capacitor 58 to a first amplifier transistor 60 which is directly coupled to a second amplifier transistor 68. This latter transistor is normally biased off by a voltage divider 70, 72, but is now briefly turned on so that a capacitor 80 can discharge through it and cause a gating signal to be transmitted to a thyristor 32. The ignition capacitor 30 can now discharge through the primary winding of transformer 28, so that a pulse is produced at the ignition electrode 34 of flash tube 36. A storage capacitor 38, charged by a voltage doubler circuit 40, 42, 44, now discharges in a very short time through the tube to produce an intense flash. The photo-transistor 46 has a capacitor 56 in its base circuit to divert any pulses originating from the mains supply. A number of such arrangements may be assembled in a studio and triggered simultaneously by a single flash which actuates the phototransistor in each circuit. Alternatively, the flash may be manually triggered by closing a switch 90. A capacitor 84 can then discharge into a transformer 82 which delivers a pulse to the base of transistor 60. The remainder of the circuit operates as before.
Patent GB-1451653-A (GB)
IPC: B01F15/00
Filed: 1973-12-11
Abstract: 1451653 Friction ratchets; friction clutches SOC D'EXPLOTATION D'USINES METALLURGIQUES 11 Dec 1973 [15 Dec 1972] 57308/73 Headings F2C and F2Q Stepwise rotation of an output shaft 3 is obtained from oscillation of an input assembly 6, 7 by operation of hydraulic jacks 8, 9 to frictionally engage input members 6, 7 with output members 1, 2 fixed to the shaft, the oscillation of assembly 6, 7 being by double acting rams 12, 13, the jacks 8, 9 being supplied with pressure fluid during only one direction of the oscillation. In an alternative construction (Fig. 3, not shown) the members 6, 7 are shaped to define between them an annular jack. In a yet further embodiment the outer pairs of members of the clutch are oscillated and a driven plate attached to the output shaft clamped between them by the operation of hydraulic jacks during one sense of the oscillation (Fig. 5, not shown). The distribution of hydraulic pressure may be controlled electrically or pneumatically. The drive may be used for mixers in the sugar industry, or for a mixer, grinder or stirrer in the chemical or food industries.
Patent GB-1247809-A (GB)
Title: Improvements in or relating to spring contacts for electric socket connectors
IPC: H01R13/11
Filed: 1969-11-26
Abstract: 1,247,809. Two-part couplings. SIEMENS A.G. 26 Nov., 1969 [27 Nov., 1968], No. 57765/69. Heading H2E. A spring contact 1 which can be assembled in a cavity in the insulating body of an electrical connector, and which is locked in said cavity by means of a barb 6 in a U-section casing 4, comprises two resilient legs 2 having flat faces biased towards one another, and being connected by a U-section channel portion 9 having tongues 10 for crimping to a conductor cable and end tongues 10a for crimping to the insulation. To protect the legs 2 the U-section casing 4 is made integral with the channel portion 9 in the assembled condition (Fig. 1b not shown). The casing 4 has two openings separated by a web 5 against which bear two lugs 3 on the legs 2 which are thus held apart a predetermined distance. The barb may be released by a tool (8) inserted in groove (19) in the cavity (Figs. 2a and 2b, not shown). The contact and casing can be made from stampings of sheet metal and spot welded together, or from one stamping (Fig. 3a not shown).
Patent GB-1182318-A (GB)
Title: Improvements in or relating to Chromium Coatings
IPC: C25D5/50
Filed: 1967-12-20
Abstract: 1,182,318. Electrolytic chromium coating. HOESCH A.G. Dec.20, 1967 [Jan. 31, 1967], No.57816/67. Heading C7B. A steel surface is cleaned and pickled, electrolytically coated with Cr and then maintained in air for less than 1 minute at 150 to 300‹ C. For example, strips of sheet steel are electrolytically degreased as cathodes in a 4% alkaline orthosilicate solution at 80‹ C. using 8A/dm<SP>2</SP> for 1 minute, pickled in aqueous HC1 solution, electro-plated in a bath of composition 250 g/1 CrO 3  and 3 g/1 Cr 2  (S0 4 ) 3  at 20‹C. using 30A/dm<SP>2</SP> for 10 secs. and then heated in air at 210‹ C. for 4, 8, 12, 16 and 20 secs. respectively. Inductive or resistance heating may be employed especially in continuously operating apparatus. The Specification refers to Specification 939,136.
Patent GB-1420614-A (GB)
Title: Formwork boards for concrete work
IPC: E04G9/05
Filed: 1972-12-14
Abstract: 1420614 Formwork boards VEBA-CHEMIE AG 14 Dec 1972 [16 Dec 1971] 57839/72 Heading E1S A concrete-formwork board I of extruded plastics material comprises bottom and top plates 3, 2 interconnected by longitudinal webs 6 spaced at identical or different intervals which define chambers therebetween, some or all of the chambers being entirely or partially filled with a stiffening element 7 of wood and/or hollow metal sections. Both ends of each chamber containing elements 7 are closed by plugs which are preferably of the same material as the board itself and joined thereto by a supersonic weld or a suitable adhesive. Other chambers may be filled with a foamed plastics material. In a modification the ends of the chambers are closed by a continuous strip, see Figs. 3 and 4 (not shown). For comprehensive list of plastics materials employed together with fillers that may be incorporated therein, the specn. should be referred to.