baber/WOPTO huggingface dataset:
Patent GB-1123088-A (GB)
Title: Process for the continuous production of alkali-metal alcoholates
IPC: C07C31/30
Filed: 1966-11-09
Abstract: Continuous preparation of alkali metal alcoholates by reacting at elevated temperature an aliphatic or cycloaliphatic monohydric alcohol (2-12 C) with an alkali metal alcoholate derived from a monohydric alcohol (1 or 2C) which has a lower boiling-point than the higher alcohol to produce the desired alkali metal alcoholate together with the liberated lower alcohol and then introducing gaseous higher alcohol into the reaction mixture thus obtained to drive off from the mixture a gas comprising the lower alcohol. The specified higher alcohols have primary, secondary or tertiary hydroxy groups.  The process may be carried out at a pressure other than atmospheric, preferably at the boiling point of the reaction mixture. Examples describe the preparation of sodium n-propylate, sodium isopropylate, and potassium tert-butylate.
Patent GB-1362860-A (GB)
Title: Pressure gauge
IPC: B29C48/92
Filed: 1971-10-29
Abstract: 1362860 Pressure gauges NETHERLANDS APPLIED SCIENTIFIC RESEARCH FOR INDUSTRY TRADE & COMMERCE 29 Oct 1971 [29 Oct 1970] 50349/71 Heading G1L In a pressure gauge comprising a tubular casing 1 closed at one end by a membrane 5 and provided at the other end with a displacement meter 7 connected to the membrane 5 by a hollow push rod 9, the wall thickness of the rod 9 is relatively small with respect to the rod 9 diameter and there is only a slight clearance between the rod 9 and the inner wall of the casing 1. At cooling member 6 is arranged between the meter 7 and a sleeve 11 enclosing the casing 1. A liquid may fill the space between the outside of the rod 9 and the inside of the casing 1.
Patent GB-1093840-A (GB)
Title: Modified polyesters
IPC: C08G63/85
Filed: 1965-11-29
Abstract: Fibre-forming polyesters are prepared by forming a polyester from a dicarboxylic acid and a glycol and reducing the concentration of the carboxyl end groups in the polyester by reaction with a glycidyl ether <FORM:1093840/C3/1> wherein R is an aliphatic, cycloaliphatic or aromatic group and R1 is H or an aliphatic, cycloaliphatic or aromatic group. In examples polyesters are prepared from dimethyl terephthalate and ethylene glycol i.p.o. Zn, Mn or Co acetate and Sb2O3 and optionally TiO2, and stabilized with triphenyl or tributyl phosphite; the properties with and without after-treatment are compared, the glycidyl compounds used being the phenyl, butyl, allyl, o-chlorophenyl and 2-chloroethyl glycidyl ethers.  The intrinsic viscosities and softening points all lie in the ranges 0.63-0.985 and 254-262 DEG  C. respectively; the ranges of carboxyl content are 31.5-53 equivalents/106 gm. and 6.0-28.7 equivalent/106 gm. without and with treatment, respectively.
Patent GB-1062178-A (GB)
Title: Improvements in or relating to a centrifugal pump
IPC: F04D15/00
Filed: 1963-12-23
Abstract: 1,062,178. Centrifugal pumps. K. RœTSCHI A.G. PUNPENBALL BRUGG. Dec.23, 1963 [Jan. 16, 1963], No.50700/63. Heading F1C. A circulation pump for a central heating installation comprises a rotary throttle valve 1 arranged in the suction passage 3 directly opposite the impeller 5. The wall 2 of the valve 1 is so shaped that the pump delivery increases proportionally to the angle through which the valve control knob 6 is turned. It may be arranged, as by shaping the wall 2, that there is still a small flow even at the minimum setting of the knob 6.
Patent GB-1404112-A (GB)
Title: Low solids shale controlling drilling fluid
IPC: E21B21/00
Filed: 1973-11-01
Abstract: 1404112 Drilling fluid TEXACO DEVELOPMENT CORP 1 Nov 1973 [24 Nov 1972] 50743/73 Heading E1F A drilling fluid comprises an aqueous phase saturated with calcium hydroxide and containing sodium chloride and a calcium salt of greater solubility than calcium hydroxide so that the calcium ion concentration is at least 200 ppm, 1 ml of the aqueous phase requiring at least 0.2 ml of 0.02N sulphuric acid for titration to the phenolphtholein end point, and a dispersed solids phase comprising sufficient attapulgite and/or asbestos to cause the drilling fluid to have a plastics viscosity from 5 to 20 cp., a yield point from 5 to 40, and a ratio of yield point to plastic viscosity from 0.25 to 1.0. The calcium salt may be calcium chloride sulphate, nitrate, acetate or formate, and the solids may include excess undissolved calcium hydroxide. The fluid has an API filtration rate of at least 100 ml, which can be reduced if desired by adding hydroxyethylcellulose. The fluid is stated to be particularly useful in drilling in leaning shale.
Patent GB-1517039-A (GB)
Title: Assembling circuit components on a circuit board using projected light
IPC: H05K3/00
Filed: 1975-12-15
Abstract: 1517039 Optical projectors A LEMMER [trading as ALFRED LEMMER WERKZEUGUND MASCHINENBAU] 15 Dec 1975 [16 Dec 1974] 51330/75 Heading G2J In the assembly of components on a circuit board, an opaque image carrier with a layer perforated in a given manner is positioned in fixed relation to a board, light is projected on to the board through the image carrier to illuminate parts of the board to locate components on the board. As shown in Fig. 1 a board 2, e.g. a printed circuit board, is mounted over a recess 3 in a table top 1. A projector 5 and a mirror 8 project on to board 2 an image whereby components kept in recess 4 are assembled on the board. Connecting wires may be cut by a cutter in recess 3. The image carrier to be mounted in the projector is manufactured as described in Specification 20315/77 and consists of a film 11 with an integral frame 10 of copper or other metal, or plastics material, having perforations 12 providing images on the board to guide the assembly of components thereon. The image carrier has recesses at the edge which co-operate with pins 15 in the projector for accurate location, and the film may be covered on both sides by a transparent layer, or the perforations may be filled with transparent plastics material. In modification, Figs. 4, 5 (not shown), the frame (20) is stamped out of the film plane and flanged at the edges.
Patent GB-1487337-A (GB)
Title: Push bar latch operating devices for doors
IPC: E05B65/10
Filed: 1974-11-29
Abstract: 1487337 Linkwork NEWMAN-TONKS Ltd 14 Nov 1975 [29 Nov 1974] 51716/74 Heading F2K A push-bar latch operating device, for operating "panic bolts" axially provided in exit doors of public buildings for emergency exit purposes, comprises a tubular push-bar 19 connected to one or, as shown, two levers 14, 18 for operating a pair of door frame engaging elongated bolt rods 12, 13 via the lever 14, each lever 14 and 18 being rigidly connected to the push-bar 19 by a screw 24 which engages and deforms a portion of the tubular push-bar 19 into a grooved or irregularly shaped plug 21 contained within the push-bar 19. As shown, each lever has a keyhole shaped slot 20 into which the tubular push-bar 19 and the cylindrical plug 21, having a correspondingly keyhole shaped flanged head, are fitted from opposite sides, a nut 25 being trapped in the lower part of the keyhole slot 20, the screw 24 being screwed through the nut 25 to deform a portion of the tubular push-bar 19 into a groove 22 in the plug 21. The nut 25 may be rectangular, hexagonal or some other non-circular form, or may be cast in the lever, or the nut may be omitted and the lever directly threaded to receive the screw 24. The plug 21 may, instead of the groove 21, have a flattened or oval section defining a zone into which the tubular bar 19 may be locally deformed.
Patent GB-1451481-A (GB)
Title: Mehtod and apparatus for the production of carbon black from liquid or gaseous hydrocarbons
IPC: C09C1/48
Filed: 1973-11-07
Abstract: 1451481 Carbon black INTERNATIONAL FROSSBLACKS PROCESS ESTABLISHMENT 7 Nov 1973 [10 Nov 1972 31 Aug 1973] 51725/73 Heading C1A Carbon black is produced from liquid or gaseous hydrocarbons by thermal decomposition of the hydrocarbon by partial combustion in a combustion chamber, the hydrocarbon being introduced into the combustion chamber as a heated substantially homogeneous mixture with an oxygen-containing gas through inlets which are substantially evenly distributed over the cross-section of the combustion chamber, and being therein partially combusted at a temperature of 950 to 1,200C.; the combustion products are then cooled by indirect heat exchange with at least one stream of cooling medium, and separating the carbon black formed. In the case of a liquid hydrocarbon the homogeneous mixture is formed by introducing preheated liquid hydrocarbon under pressure and preheated oxygen-containing gas into a plurality of vaporization zones which lead into the combustion chamber, whereas in the case of a gaseous hydrocarbon the hydrocarbon and the oxygencontaining gas are introduced under pressure into a mixing chamber and the resulting substantially homogeneous mixture is heated and then introduced through a plurality of entrances into the combustion chamber, the mixture being further heated as it is introduced into the combustion chamber.
Patent GB-1198470-A (GB)
Title: Fluid Flow Controlling Valves
IPC: F16K31/60
Filed: 1967-11-15
Abstract: 1,198,470. Valves. ACF INDUSTRIES Inc. 15 Nov., 1967 [13 March, 1967], No. 51925/67. Heading F2V. A valve gate 38 is connected to operating stem 40 by a coupling comprising a stem enlargement 72 provided with a key 74 which is retained in a slot 70 by a ferrule 80 screwed on to gate extension 66. In a modification (Fig. 4, not shown) the mating surfaces 82, 84 are part spherical.
Patent GB-1087319-A (GB)
Title: 17ª-methyl-estradiols and process for their manufacture
IPC: C07D487/04
Filed: 1964-12-22
Abstract: The novel 7a ,17a -dimethyl-estradiol and the novel 3-methyl ether thereof are prepared by reacting 7a -methyl-estrone or the 3-methyl or -tetrahydropyranyl ether thereof with a methyl metal compound e.g. a Grignard reagent or lithium methyl, and, if necessary, removing the tetrahydropyranyl group.  Examples are given.  7a  - Methyl - estrone tetrahydropyranyl ether is prepred from the free 3-ol and dihydropyran.  The steroids of the invention, which are stated to be highly active estrogens, may be made up into pharmaceutical compositions suitable for enteral or parenteral administration. In addition to carriers they may contain preserving, stabilizing, wetting or emulsifying agents, salts for regulating the osmotic pressure, or buffers.
Patent GB-1151763-A (GB)
Title: Electromagnetic Waveguides.
Inventor: EFFEMEY HARRY GEORGE
IPC: H01P3/13
Filed: 1965-12-08
Abstract: 1,151,763. Flexible waveguides. NATIONAL RESEARCH DEVELOPMENT CORP. 2 Dec., 1966 [8 Dec., 1965], No. 52084/65. Heading H1W. A flexible waveguide, for e.g. propagation of the circular-electric H 01  wave mode, comprises a tube 2 of insulating material, e.g. polypropylene, a conductive layer 1 of e.g. copper, a layer 3 of resilient material, e.g. foamed thermoplastic resin, and an outer, flexible, protective sheath consisting e.g. of a layer 4 of polythene, and a metal braiding 5. The waveguide is pressurized to prevent distortion of the cross-section. The tube 2 may be seamed or extruded and the copper layer 6 may be deposited by evaporation, spraying or electroless deposition. Alternatively, it may be formed by helically winding a strip of copper foil on the tube 2. Instead of being continuous, the conductive layer may be in the form of discrete bands forming a mode filter. Two sets of bands separated by a layer of lossy insulating material may be used. The bands in one set overlie the gaps in the other set. An additional layer of insulating material may be interposed between the conductive layer 1 and the resilient layer 3.
Patent GB-1223669-A (GB)
Title: Improvements relating to sliver drafting apparatus
IPC: D01H5/26
Filed: 1969-10-24
Abstract: 1,223,669. Drafting head. ZINSER-TEXTILMASCHINEN G.m.b.H. 24 Oct., 1969 [2 Nov., 1968], No. 52201/69. Heading DID. A double apron drafting head having the aprons 12, 13 passing round the back rollers 3, 25 has the lower apron 12 tensioned by a freely mounted apron-deflecting roller 21, and a tape bridge 7, 8, 9 comprising at least two spaced ribs or strips over which the lower apron slides positioned between the back roller 3 and the tension roller 21, the upper apron cradle being supported on the bridge 7, 8, 9. The upper cradle is pressed against the bridge by spring 28. The bridge 7, 8, 9 and roller 15 5 can be adjustably mounted.
Patent GB-1508220-A (GB)
Title: Portable electric lamp
IPC: F21V9/40
Filed: 1975-12-22
Abstract: 1508220 Electric battery lamps; miners' lamps OLDHAM & SON Ltd and H MORTON 3 Nov 1976 [22 Dec 1975] 52385/75 Heading F4R A portable electric lamp, e.g. a miners' cap- or hand-lamp, comprises a lamp body including a lens, a reflector and a bulb-holder, the bulbholder being surrounded by an axially movable translucent diffuser sleeve slidable between a retracted position, in which the light is reflected to form a spot beam, and a forward position in which the lamp provides diffuse illumination.
Patent GB-1448649-A (GB)
Title: Superconductive circuit arrangements
IPC: H03K19/195
Filed: 1974-12-05
Abstract: 1448649 Superconductive circuits; Josephson junction devices INTERNATIONAL BUSINESS MACHINES CORP 5 Dec 1974 [27 Dec 1973] 52616/74 Heading H3X A superconductive circuit includes a pair of Josephson junction devices 26, 26a located equidistant from respective ends 27, 28 of a superconductive transmission line 25 and biased by common means 32, 34 to adjust their switching points to the same current level, the arrangement being such that if a current I from a source 38 causes the devices to switch to their non-zero voltage state, line reflections are balanced. The bias means 32, 34 lower the point at which switching will occur when the line is pulsed, the output appearing across resistor 40. The line 25 may form one column of a storage matrix (Fig. 3, not shown) in which the rows are associated with different Josephson pairs such as 26, 26a and 30, 30a The rows and bias means in the form of memory cells combine to set the switching point of the Josephson pairs so that line pulsing is effective to read out the contents of the cells. The rows may be superconductive. Each device (Fig. 4, not shown) consists of lead or tin electrodes with an oxide tunnelling layer and a pair of bias conductors (IC1, IC2) magnetically influencing the device.
Patent GB-1364452-A (GB)
Title: Application of finishing agents
IPC: D06M23/10
Filed: 1970-11-06
Abstract: 1364452 Finishing IMPERIAL CHEMICAL INDUSTRIES Ltd 1 Nov 1971 [6 Nov 1970] 52943/70 Addition to 1175208 Headings D1B and DIP  A finishing agent e.g. a dye, optical brightener, shrink or crease resist agent, antistatic agent or a water, dirt, oil or stain repellant is applied to a substrate, as a solution, dispersion or emulsion in an organic solvent and the solvent subsequently removed as described in Specification 1175208 and the substrate then treated with superheated steam or with the vapour of an organic solvent (preferably the same solvent as is used to apply the finishing agent) at a temperature equal to or greater than the boiling point of the solvent. Specified solvents are perchlorethylene 1, 1, 1-trichloroethane, methylene chloride, 1, 1, 2-trichloro-1, 2, 2-trifluoroethane and trichloroethylene. The substrate may be paper or a textile material in the form of fibres, yarn, woven knitted or felted fabrics polyester of wool cotton or regenerated cellulose. The super heated steam or solvent vapour may be heated by electric or infra-red heaters present within the treatment vessel. If treatment is carried out in a single vessel with a baffle between the two treatment chambers a flow of steam or solvent vapour is created from the high temperature chamber to the low temperature chamber. The steam used may be under pressure. Specified treating agents are alkoxylated propylene urea resins and melamine resins as crease resist agents, a terpolymer of ethylene, vinyl acetate and methacryloyl chloride for shrink-proofing wool, fluorinated polymers, methylolamides of fatty acids, and silicone polymers for imparting water, oil and dirt repellancy.
Patent GB-1450946-A (GB)
Title: 180degree loop carrier for a slurry line
IPC: B65G53/30
Filed: 1973-11-15
Abstract: 1450946 Conveying carriers for slurry-conveying pipes CONTINENTAL OIL CO 15 Nov 1973 [30 March 1973] 53048/73 Heading B8A [Also in Division F1] A conveyer for transporting a 180 degree loop in a dual-pipe slurry pumping system comprises an overhead track from which wheeled carts 45 carrying the slurry pipes are suspended. In Figs. 6-8, the conveyer comprises an endless track 80 in which run a series of trollies 90 from each of which is suspended a pair of tongs 92. The latter are opened by the action of rollers 100 on the tong arms engaging cam surfaces 93 on the sides of the tracks. This occurs at a lower altitude section of the track 80, so that on one side of the conveyers, the carts 45 are successively engaged and lifted off the ground, are carried around 180 degrees of arc, and are then deposited on the ground again and released. In a modification (Figs. 1-4, not shown) the track is D-shaped and each cart is provided above its top surface with a roller which runs into engagement with the track at the beginning of its 180 degree turn. The conveyer in this case is just a track, the tractive action being provided by the conveying movement of the chain of carts. In Figs. 10 and 11, the conveyer is in the form of a rotor 160 having arms which can be raised and lowered by the action of jacks 163. The outer end of each arm has a cart-engaging recess 162. With the jack 163 depressurized, so that the associated arm at the beginning of a 180 degree turn is lowered, the recess 162 engages and lifts the cart as the jack is re-energized. In a further modification (Figs. 12 and 13, not shown) the rotor 160 is in the form of a circular disc-like member mounted with its plane disposed at an angle to the horizontal. In all cases the conveyer frame is mounted on wheels some of which are driven and/or are power steerable.
Patent GB-531951-A (GB)
Abstract: 531,951. Dye mixtures. 1. G. FARBENINDUSTRIE AKT.-GES. Aug. 9, 1939, No. 22993. Convention date, Aug. 17, 1938. [Classes 2 (iii) and 15 (ii)] Dyestuff mixtures yielding dyeings very fast to light, e.g. on cotton or regenerated cellulose, contain a green-dyeing vat dyestuff of the dialkoxydibenzanthrone series and an anthraquinonedithiazole obtainable by condensation of 1-mercapto-2-aminoanthraquinone with a terephthaloyl dihalide or a monohalogen terephthaloyl dihalide (cf. Specification 204,249), [Class 2 (iii)]. Examples relate to mixtures as follows :-(1) and (4), different proportions of Bz2:Bz2<SP>1</SP>-dimethoxydibenzanthrone and the yellow dyestuff of Example 1 of Specification 204,249, (2) and (5), different proportions of brominatedBz2:Bz2<SP>1</SP>-dimethoxydibenzanthrone (cf. Specification 205,304, [Class 2 (iii)]) and the same yellow dyestuff, (3) and (6), different proportions of Bz2:Bz2<SP>1</SP>--dimethoxydibenzanthrone and the dithiazole from 1-mercapto-2- aminoanthraquinone and monochloro-terephthaloyl dichloride.
Patent GB-1365683-A (GB)
Title: Resistive control units
IPC: H01C10/30
Filed: 1970-11-10
Abstract: 1365683 Mechanical switches without quick action PLESSEY CO Ltd 1 Nov 1971 [10 Nov 1970 19 Dec 1970] 53406/70 and 60424/70 Heading H1N In an electrical resistor a wafer contact (not shown) engages terminal contacts 18, 19, 20, Fig. 2, connected to a planar resistor 7 mounted on one face of a block 5 of ceramic material which acts as a heat sink for the resistor. In the example shown the terminal conductor 6 and resistor 7 are deposited on the ceramic block 5 as by screen printing or other thick film technique and caused to adhere by a firing process. The whole area except for the contact studs 18, 19, 20 may be fired with a protective glass coating. The contact studs 18, 19, 20 may have raised heads or be rivets whereby the sliding contact is lifted off the intermediate non-conductive layer to reduce tracking. The terminal 16 is riveted at 17 to the conductor 6 and in an alternative embodiment, Figs. 5 and 6 (not shown), a terminal conecting strip (37) may be arranged on the opposite face of the ceramic block and have riveted connection to the resistor (32).
Patent GB-1309339-A (GB)
Title: Television receiver
IPC: H04N5/50
Filed: 1971-11-18
Abstract: 1309339 Automatic frequency control PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 18 Nov 1971 [21 Nov 1970] 53608/71 Heading H3A In a T.V. receiver including a local oscillator coupled to a mixer, an I.F. amplifier coupled to the output of the mixer, and a detector coupled to the output of the I.F. amplifier, the detector is also coupled to an oscillator operating at the intermediate frequency and the output from the detector is applied as an automatic frequency control signal to both oscillators. As described, the detector is a phase detector whose output is fed via a low pass filter to the local oscillator control circuit, and via a high pass filter to the I.F. oscillator control circuit, the cut off frequencies of the two filters being the same.
Patent GB-1282859-A (GB)
Title: Plumbing module
IPC: E03D11/14
Filed: 1970-11-12
Abstract: 1282859 Plumbing units BORG-WARNER CORP 12 Nov 1970 [8 Dec 1969] 53933/70 Heading E1A A prefabricated plumbing unit 10 of moulded plastics or metal has flanged ends 12 for attachment to the studs 14 of a building, integral pipes and traps such as 16, 18, 20, 22, 24 to serve as vent and waste outlets or for connection to services such as 32, 34, 36, and, a water closet tank 38. The flanges and tank may be provided with apertures for the passage of hot and cold water pipes and the unit 10 slightly modified for connection to an abovethe-floor tub or shower drain, see Figs. 5, 6 and 7 (not shown).
Patent GB-1458150-A (GB)
Title: Arrangement for pickup and display of the position of a vehicle
IPC: G01S7/22
Filed: 1974-12-13
Abstract: 1458150 Navigational display apparatus; course recording apparatus VEREINIGTE FLUGTECHNISCHE WERKE FOKKER GmbH 13 Dec 1974 [14 Dec 1973] 54045/74 Headings G1F and G1J A navigational display system for a vehicle, particularly a ship, comprises a sensor system 2 for sensing predetermined parameters relating to the motion of the vehicle, radar equipment 1, a computer 12 receiving information from the sensor system 2 and the radar 1 and including a mathematical model 14 simulating the vehicle behaviour, and a display apparatus 16 controlled from the computor 12 via control means 10 to indicate the actual position 17 of the vehicle and a predicted course for a predetermined time ahead, shown as a curve 18. The display apparatus 16, typically a large area daylight display, also shows the positions of other vehicles or obstacles, as detected by the radar 1. A plotter 21 plots the vehicle track on a chart. The sensor system 2 includes a Doppler speed sensor 3, a wind speed and direction sensor 4, a vehicle drive system state sensor 5, a rudder position sensor 6, a gyrocompass 7, a displacement gyro 8, and a rate gyro 9. Thus the line 18 on display 16 represents the future course of the vehicle with the control settings and external conditions pertaining, for a predetermined period ahead. A digital display 20 may indicate, e.g. the most appropriate manoeuvre for collision avoidance, or, if the computer 12 stores a set of traffic regulations, any infringement of these regulations.