baber/WOPTO huggingface dataset:
Patent GB-1407105-A (GB)
Title: Alkali metal tetrahydrofuran tetracarboxylates
IPC: C07D307/24
Filed: 1973-08-22
Abstract: 1407105 Detergents containing tetrahydrofuran carboxylates MONSANTO CO 22 Aug 1973 [23 Aug 1972 (2)] 39752/73 Heading C5D [Also in Division C2] Detergent compositions comprise from 1 to 75% by weight of a tetra alkali metal tetrahydrofuran 2,2,5,5-tetracarboxylate of formula wherein M is sodium or potassium, and hydrates thereof (see Division C2) with at least 8% by weight of a surfactant. The compounds act as builders and have sequestration activity. Compositions may include detergency builders, such as alkali metal carbonates, borates, phosphates, polyphosphates, bicarbonates and silicates, salts of nitrilo-triacetic acid, phytic acid, sodium citrate or water-soluble polymeric polycarboxylates, and surfactants such as anionic, nonionic zwitterionic or ampholytic compounds, many of which are listed. Examples describe compositions comprising 12% linear alkylbenzene sulphonate, an adduct of a modified oxo-type C 14 -C 15  alcohol with ethylene oxide, sodium hydroxyalkyl (C 14 - C 16 ) N - methyl lamate, or cocodimethylsulphopropylbetaine; 5-75% of the tetracarboxylate; 12% of sodium silicate with sodium sulphate used as detergents.
Patent GB-1329627-A (GB)
Title: Magnetoresistive devices
IPC: H01L43/08
Filed: 1971-08-25
Abstract: 1329627 Sensing magnetic fields SIEMENS AG 25 Aug 1971 [27 Aug 1970] 39812/71 Heading G1N A device for sensing the magnitude and direction of a magnetic field comprises two magnetic circuits having respective permanent magnets 128, 129 and including respective magneto-resistive elements 130, 131 and ferromagnetic flux guide members 126, 132, 133, 134, and the field to be sensed is concentrated by members 132, 133 to pass through the magnetoresistive members 130, 131 so as to increase the resistance of one and decrease the resistance of the other. The device shown may be used to detect zero position or passage of a magnet 127.
Patent GB-1189326-A (GB)
Title: Process for producing Adiponitrile from Acrylonitrile
Filed: 1967-09-01
Abstract: 1,189,326. Production of adiponitrile. TOYO KOATSU INDUSTRIES Inc. 1 Sept., 1967 [3 Sept., 1966; 6 Sept., 1966], No. 40103/67. Heading C2C. Adiponitrile is obtained by a process in which granulated particles of an alkali metal amalgam containing 0À015 to 0À30 weight per cent alkali metal and having an average particle diameter of less than 3À5 mm. are dropped from the upper part of a reaction tower into a reaction solution containing 5-50 wt. per cent acrylonitrile, 5-40 wt. per cent H 2 O and 25-80 wt. per cent of a catalyst and/or solvent having a catalytic action, CO 2  is introduced into the reaction solution from a lower part of the reaction tower, the pH of the reaction solution is adjusted to 7-10 and the temperature of the reaction solution is in the range -10‹ to + 60‹ C. The adiponitrile produced may be isolated (a) by separating the resultant reaction mixture from the alkali metal bicarbonate which is formed by filtration, neutralizing the filtrate with acid and recovering the adiponitrile therefrom by distillation, (b) by separating the resultant reaction mixture from the alkali metal bicarbonate by filtration, extracting adiponitrile from the latter, neutralizing the extract with acid and recovering adiponitrile therefrom by distillation, or (c) separating the reaction mixture from the alkali metal bicarbonate by filtration, extracting adiponitrile from the latter, treating the extract with an ion-exchange resin and recovering adiponitrile by distillation. Suitable solvents having a catalytic action which may be employed in the process include monoalkyl and dialkylamides, hexa-alkyl phosphoramides, dialkyl sulphoxides, dialkyl sulphones, N-methyl pyrrolidone and acetonitrile. Suitable catalysts for use in the above process include quaternary ammonium salts, phosphonium salts, p-toluenesulphonates, urea, alkylureas and gammabutyrolactam.
Patent GB-1366896-A (GB)
Title: Apparatus for introducing a predetermined quantity of gas into  a deformable receptacle
IPC: B61F5/24
Filed: 1971-08-26
Abstract: 1366896 Railway undercarriages SOC GENERALE DE CONSTRUCTIONS ELECTRIQUES ET MECANIQUES (ALSTHOM) 26 Aug 1971 [27 Aug 1970] 40158/71 Heading B7L [Also in Divisions F1 and F2] A pneumatically operated deformable receptacle, e.g. a lifting jack piston and cylinder 4, Fig. 1, is raised from a level 5 to a level 7 by discharging a compressed gas, e.g. air stored in a vessel 3 through a 3-way valve 6 after which the vessel 3 is recharged from a reservoir 1 through the valve 6 when turned 90 degrees anticlockwise. Further upward steps of the piston are effected by repeated discharge and recharge of vessel 3; the pressure in reservoir 1 being maintained by a compressor (not shown). In a modification each of two inflatable bellows 14, Fig. 4, support a railway carriage body 12 on a bogie 13 and are each connected to an associated valve 6 and vessel 3. When the carriage is traversing a curve, e.g. a left hand curve, right hand valve 6 is moved so as to discharge its vessel 3 into the right hand bellows 14 by means 17 responsive to a centrifugal force detector 16, and when the latter is no longer subject to said force a valve not shown releases air from R.H. bellows 14 until the latter returns to its normal position.
Patent GB-1115647-A (GB)
Title: Yarn
Inventor: TINDALL JOHN RAYMOND
IPC: D02G3/32
Filed: 1964-10-02
Abstract: Composite, relatively inextensible (so-called "mack chenille") yarn comprises one to four core-spun yarns, incorporating an elastomeric core which is/are doubled with one or two "inextensible" yarns.  The core may be a mono-or multi-filament of segmented polyurethane around which is spun a sheath of natural e.g. cotton or wool, or synthetic e.g. polyamide, polyester, acrylic or cellulosic, staple fibres.  The or each "inextensible" yarn may be a single yarn of natural or synthetic staple fibres or filaments.  When more than one yarn of each type is employed in forming the composite yarn, the doubling may be performed in one or separate stages and in opposite directions (to render the composite yarn twist-stable).
Patent GB-1074125-A (GB)
Title: Gaseous fuel cell
IPC: H01M4/86
Filed: 1963-10-24
Abstract: 1,074,125. Fuel cells. GENERAL ELECTRIC CO. Oct. 24, 1963 [Oct. 24, 1962], No. 40507/63. Heading H1B. A gaseous fuel cell has an aqueous electrolyte between and in direct electrical contact with a pair of gas-permeable, hydrophobic electrodes of gas absorbing metal particles bonded by P.T.F.E. and having a coating of P.T.F.E. bonded to the surface in contact with the gas phase. The electrodes are those disclosed and claimed in Specification 1,074,126.
Patent GB-1115777-A (GB)
Title: Improvements in die casting machines
IPC: B22D17/20
Filed: 1965-09-23
Abstract: 1,115,777. Casting machines. GEBRUDER BUHLER. 23 Sept., 1965 [29 Sept., 1964], No. 40599/65. Heading B3F. A die casting machine having a split mould, each mould part being incorporated in a separate assembly, the assemblies being movable relative to each other to permit the opening of the mould for removal of the casting, comprises a stripper which includes means for cleaning the mould and which is mounted for movement from a raised position to a position between the mould parts when the mould is open and mechanical actuating means for operating the stripper in response to the opening and closing movements of the assemblies. The stripper 22 is held in a retracted position when the mould is closed by a forked member 17 mounted on the assembly 2, 4 and which supports a roller 31 attached to link arms 28. When the assemblies are separated, the roller 31 disengages from the member 17 releasing the lever arms 28 and the stripper is urged by spring means 30 downwardly between the opened mould halves. During this downward movement the stripper strikes the sprue of the casting to free it from the ejector means 16 and when reaching its lowest position the stripper operates a switch 33 to actuate pneumatic means for injecting simultaneously lubricant and air into the mould cavities to free any remaining particles therein and lubricate the mould cavities ready for the next casting operation the closing movement of the mould assemblies effecting retraction of the stripper from between the mould parts by the actuation of the mechanical linkage.
Patent GB-1528804-A (GB)
Title: Pressurizable apparatus suitable for use by divers
IPC: B63C11/32
Filed: 1975-10-03
Abstract: 1528804 Decompression apparatus DRAGERWERK AG 3 Oct 1975 [4 Oct 1974] 40666/75 Heading E1H A diver 6 for de-compression is introduced into a main pressure chamber 2 while contained in a transportable pressure chamber 5, the transportable chamber being firstly introduced into an air lock compartment 3 through a quickly sealable opening 9 and then transferred into the main chamber 2 through an intercommunicating door 4. The opening 9 is sealed by a domed cylinder 8 which defines part or substantially all, Fig. 2 (not shown) of the air-lock compartment 3.
Patent GB-1466775-A (GB)
Title: Cooling assembly for steel converter vessels
IPC: C21C5/46
Filed: 1974-09-18
Abstract: 1466775 Cooling assembly for converter vessels PENNSYLVANIA ENG CORP 18 Sept 1974 [24 Sept 1973] 40702/74 Heading F4B A metallurgical converter vessel 10 with support trunnion 16 has a lip cooling ring 11 comprising equal segments 19, 20, 21 and 22 containing a duct system 50 for conducting cooling fluid from the inlet 23 of each segment to the outlet 24. The segments are bolted through holes 52 to the upper portion of the furnace, and a metal ring 26 is bolted to the top flange of the segments to provide protection. The arrangement is such that in case of burnout of a segment water will not enter the molten bath. Additional cooling pipes 28 supplied jointly from feed header 30 and connected with a drain header 31 may be filled for cooling the upper portion 12 of the vessel. Coolant to the segments 19-22 and pipes 28 is supplied by a conduit 34<SP>1</SP> in the trunnion pin 18<SP>1</SP>. Coolant drains from the segments and pipes to a drain 42 within the trunnion 16 and leaves the vessel through a conduit 42<SP>1</SP> in the trunnion pin 18. In an alternative embodiment the cooling ring 11 comprises three segments (70), (72) and (74), Fig. 6 (not shown).
Patent GB-1490907-A (GB)
Title: Electrical connector housings
IPC: H01R13/426
Filed: 1975-10-04
Abstract: 1490907 Two-part electrical connectors AMP Inc 14 Sept 1976 [4 Oct 1975] 40727/75 Heading H2E An electrical connector housing for a plurality of electrical contacts, comprises first and second housing parts 2, 3 of electrically insulating material, and a strip 11 carrying a plurality of locking lances 10. The housing includes cooperating means, for example apertures 5 and detents 4, on the housing parts 2, 3 for latching the parts 2, 3 together, each housing part 2, 3 having a row of spaced parallel passageways 22, 50 which are aligned in use to define a plurality of cavities 6 extending between opposed faces 7, 8 of the housing. The strip 11 is mounted in the first housing part 2 so that a respective lance 10 extends into each cavity 6 for resiliently engaging a respective contact. As described, the strip 11 and lances 10 are moulded as an integral plastics item, the strip 11 being received in a channel 32 communicating with each passageway 22, a stepped portion 13 of each lance 10 being received in a recess 30 in the respective passageway 22. A hood 36 extends from a body portion 20 of first housing part 2 to receive one end of the second housing part 3. Co-operating polarizing ribs 39, 40 in the hood 36 and channels 41, 42 ensure correct assembly of the housing parts 2, 3.
Patent GB-1322595-A (GB)
Title: Disazo compounds their production and use as disperse dyes
IPC: C09B31/062
Filed: 1970-08-25
Abstract: 1322595 Disperse disazo dyes SANDOZ Ltd 25 Aug 1970 [9 Sept 1969] 40831/70 Heading C4P New disperse disazo dyes of formula wherein A is phenyl, naphthyl, thiazolyl, benzothiazolyl, thienyl, pyrazolyl, imidazolyl, triazolyl, tetrazolyl, quinolinyl or isoquinolinyl which may be substituted by halogen atoms or alkyl, alkoxy, NO 2 , CN, SCN, mercapto, acyl or acyloxy groups, B is phenylene or naphthylene which may be substituted and nuclei D and E may be further substituted, the dyes being free from COOH and SO 3 H groups, are prepared by coupling a tetrazotized phenylene- or naphthylene-diamine with a component A-H and with a 2-hydroxydiphenyl or by coupling a diazotized aminoazo dye A-N = N-B-NH 2  with a 2-hydroxydiphenyl. They are used to colour hydrophobic synthetic fibre materials, in particular polyester fibres in yellow to red shades. Specification 523,304 is referred to.
Patent GB-1237170-A (GB)
Title: Rack and pinion steering mechanism
IPC: B62D5/22
Filed: 1968-07-01
Abstract: 1,237,170. Motor vehicle steering mechanism. ADWEST ENG. Ltd. 1 July, 1968, No. 40921/69. Divided out of 1,234,482. Heading B7H. Rack-and-pinion steering mechanism for a motor vehicle comprises a rod 8 adapted at its ends 9, 10 for fixing to the chassis or body of a vehicle, a casing 2 slidable on the rod 8, a toothed rack 1 carried by the casing 2, ball-joints 3, 4 for connecting tie rods 5a to the rack 1, and a pinion 11 meshing with the rack 1 and adapted to be rotated by a steering column 26 to cause longitudinal movement of the rack 1 and casing 2 relative to the rod 8. The pinion 11 is mounted in a housing 12 adapted to be fixedly secured to the chassis or body 13. A cylindrical part 20 of the casing 2 forms a fluid-pressure cylinder divided by a piston 19 on the rod 8 into two chambers supplied with pressure fluid through the interior of the rod 8 from a control valve 25 including an axiallydisplaceable or rotary spool.
Patent GB-1487297-A (GB)
Title: Electrostatic precipitators
IPC: B03C3/88
Filed: 1975-10-08
Abstract: 1487297 Electrostatic precipitators ENVIRONMENTAL ELEMENTS CORP 8 Oct 1975 [9 Oct 1974] 41329/75 Heading B2J In an electrostatic precipitator for removing particles from a gas in which particles freed from collector electrodes 30 collect on a surface 16 beneath the electrodes, a drag scraper 12 is provided to move the particles 24 along the surface 16 for removal at hopper 26, wherein the drag scraper 12 comprises an endless chain 14 to which are attached a number of scrapers 22, and a baffle assembly 28 is provided beneath the electrodes 30, 48 to prevent gas from flowing beneath the electrodes through the precipitator without passing between the electrodes, the baffle including upper and lower pivotal or flexible portions 32, 34 which are raised by the scrapers 22 on their upper and lower traverses and a baffle plate 36 provided beneath the upper pivotal portion 32 to prevent gas flow between portion 32 and the rest of the baffle as. portion 32 is raised. As shown, two such baffle assemblies are provided and the upper traverse of the scrapers 22 on the chain 14 is in the same direction as the gas flow through the precipitator. Preferably the scrapers 22 extend across the whole of the precipitator, and they may be in sections with a respective endless chain 14 for each section, Fig. 2 (not shown). The baffle assembly may include fixed cross members 38, 40 secured to the precipitator housing at each end with the pivotal members being connected to these members by chain links (60), Fig. 3 (not shown).
Patent GB-1508340-A (GB)
Title: Electric blanket
IPC: H05B3/34
Filed: 1975-10-09
Abstract: 1508340 Temperature alarms C S OOSTERBERG (PTY) Ltd 9 Oct 1975 [18 Oct 1974] 41437/75 Heading G4N [Also in Divisions G3 and H2] A control system (see Division G3) provides signals which, via a triac 10, moderate the current supplied to an electric blanket element 2 in response to the output of a temperature sensor. In fault conditions, such as sensor failure, the abnormal sensor output causes a further triac 32 to de-energize a relay 3 to operate a combined safety cut-out and alarm. The cut-out is effected by the opening of relay contact 33 and the alarm by closing of contact 34. On closure of 34, a visual indicator 35 responds immediately and an audible alarm 48 operates after a delay if fault conditions persist.
Patent GB-1471564-A (GB)
Title: Direct compression tabletting composition and tablets produced therefrom
IPC: C13B50/02
Filed: 1974-09-24
Abstract: 1471564 Compressed tablets CPC INTERNATIONAL Inc 24 Sept 1974 [27 Sept 1973] 41587/74 Heading A5B A direct compression vehicle for tabletting is produced by (a) admixing a crystaltine sugar such as dextrose with a maltodextrin having a dextrose equivalent not above 20 to form a solid mixture, (b) contacting the mixture with an aqueous solution of such a maltodextrin in an amount to provide a damp mass and to cause granulation of the mixture and (c) drying the granulated mixture to a moisture content of less than 10% by weight, there being 10% to 50% by weight of the maltodextrin in the vehicle. Pharmaceutical tablets based on the vehicle may contain up to 80% by weight of the tablet of a pharmaceutically active ingredient such as ascorbic acid, sodium salicylate acetaminophen, sodium bicarbonate, aluminium hydroxide, magnesium trisilicate, Vitamin E acetate, calcium lactate, ferrous sulphate, or mixtures thereof.
Patent GB-1416054-A (GB)
Title: Grinder or disposal unit
IPC: B02C19/20
Filed: 1973-09-04
Abstract: 1416054 Waste disposal apparatus R DEROUINEAU 4 Sept 1973 [26 Sept 1972] 41627/73 Heading B2A Waste disposal apparatus for use in the outlet of a water closet comprises a chamber with inlet and outlet and a pair of coacting relatively-movable members one of which is toothed and the other notched. A perforate disc 10 Fig. 3 has teeth 19 which cooperate with notches 25 on a retractable coacting member 21. Material is admitted via a pipe 9 to a chamber 4. Fine material passes via orifices 18 in the disc 10 under the influence of a suction pump 2. Coarse material is cut by the teeth 19 and member 21. Hard material is progressively cut on each revolution, the member 21 yielding on its pivot shaft 22 and being returned by a spring (23) Fig. 1 not shown. The disc is driven at 100-200 rpm by a motor 3 and gearing 13, 12 Fig. 2. An alternative construction (not shown) may use reciprocatory rather than rotary action or rotation of the coacting member against a fixed disc. When used with a lavatory pan the flush and comminuting functions may be controlled by a common switch.
Patent GB-1528796-A (GB)
Title: 7alpha-hydroxyoestradiols
IPC: C07J11/00
Filed: 1975-10-13
Abstract: 1528796 7α-Hydroxy-cotradiols SCHERING AG 13 Oct 1975 [14 Oct 1974 8 Aug 1975] 41798/75 Heading C2U Novel steroids of the formula (wherein R 1  is H, acyl, optionally substituted alkyl, cycloalkyl or a saturated oxygen-containing heterocyclic group; R 2  and R 3  are each H, acyl or a saturated oxygen-containing heterocyclic group; and R 4  is a C 1-5  aliphatic hydrocarbon group which may be chloro-substituted if it is unsaturated) are prepared from the corresponding 17-ones and suitable reagents containing R 4 . They may also be obtained by microbiological hydroxylation of the corresponding 7-unsubstituted-17#-ols. In the products OH groups may be esterified or etherified and esters and ethers may be hydrolysed. 3,7α - bis - tetrahydropyranyloxy - #<SP>1,3,5(10)</SP>- estratrien-17-one is prepared from the corresponding 3,7-diol and dihydropyran. 3-Cyclopentyloxy - 7α - hydroxy - #<SP>1,3,5(10)</SP>-estratrien - 17- one is prepared from the same starting material and cyclopentyl bromide.  The novel steroids possess a strong vaginotropic and a weak uterotropic action and they are suitable for treatment of estrogen deficiency phenomena, particularly for postmenopausal treatment of women. They may be made up into pharmaceutical compositions with suitable carriers.
Patent GB-1083750-A (GB)
Title: Improvements in or relating to temperature sensors
Inventor: WERNER FRANK DAVID
IPC: G01K7/18
Filed: 1965-10-01
Abstract: 1,083,750. Measuring temperature electrically. ROSEMOUNT ENGINEERING CO. Oct. 1, 1965, No.41814/65. Heading G1N. To avoid changes in resistance due to stresses induced by differential thermal expansion, a temperature sensor comprises a helical resistance element 28 (Fig. 6) wound during construction on a conical mandrel, and coated with a thick layer of ceramic insulating material 30 (e.g. aluminium oxide), having the same coefficient of thermal expansion as the element, which may be platinum wire. The ceramic surface is machined to make the unit fit closely inside a metal casing 25 (e.g. platinum). The mandrel is removed after assembly, and in other embodiments, Figs. 1, 3 (not shown) it is cylindrical. Alternatively the wire element may have only a thin coating of insulation and a thick coating of metal is placed thereover which is machined to fit inside an outer casing, Fig. 1 (not shown). There may be a plurality of layers of wire.
Patent GB-1528334-A (GB)
Title: Inverter control circuit
IPC: H02M7/539
Filed: 1975-10-15
Abstract: 1528334 Controlling inverters GENERAL ELECTRIC CO 15 Oct 1975 [21 Oct 1974] 42125/75 Heading H2F A control circuit for an inverter having a transformer 83 and transistor switches 61, 62 comprises a comparator 18 for comparing the instantaneous transformer flux with a reference signal, an oscillator 31 having a square wave output and a circuit responsive to the outputs of the oscillator and the comparator for supplying on and off signals to the transistor switches. A winding 67 of the transformer supplies a voltage signal to a terminal 11 of the control circuit, the signal being integrated by a series circuit 12, 14 to provide the instantaneous transformer flux. AND gates 41, 46 are connected to the outputs of flip-flops 28, 34 and the oscillator 31. Each leading edge of the square wave output of the oscillator enables the AND gates 41, 46 alternately so that their outputs 48, 49 alternately trigger the transistors 61, 62 of the inverter. The transistors are turned off at the instant in each oscillator pulse when the flux signal at input 19 of the comparator 18 exceeds the reference value at input 20, the comparator supplying a reset signal to the flip-flop 28 via an OR gate 24, thereby blocking the AND gates. The current flowing in a resistor 52 of the inverter is compared with a reference value in a comparator 54, the output of the comparator supplying a reset signal to the flip-flop 28 to block the AND gates if the current exceeds the reference level. A circuit 57, 58 reduces the frequency of the oscillator and therefore also the duty cycle of the inverter under such excess current conditions, for example due to a short circuit. The flux signal supplied to the comparator 18 may alternatively be provided by a Hall effect transducer. The control circuit maintains the output voltage of the inverter constant and corrects asymmetry between successive half cycles of the output voltage.
Patent GB-890179-A (GB)
Title: Improvements in and relating to rollers
IPC: E01C19/28
Filed: 1960-12-07
Abstract: 890,179. Road rollers. GREEN & SON Ltd., THOMAS, and OWEN, W. A. Dec. 7, 1960, No. 42149/60. Class 6(1). A road roller is provided with an auxiliary roller 1 disposed to project beyond the end thereof and mounted on a stub axle 2 extending laterally of an arm 3 carried by a slide 4 of a slide-way 5 mounted on the roller frame, the slide 4 being operated by means of a screw 6 operated by a handwheel 10. Alternatively the screw may be rotated by a motor or the slide 4 may be displaced by a hydraulic jack.