baber/WOPTO huggingface dataset:
Patent GB-1291356-A (GB)
Title: Rotary-piston internal combustion engines with ignition-timing adjustment means
IPC: F02P15/00
Filed: 1970-11-02
Abstract: 1291356 Timing ignition DAIMLER-BENZ A G 2 Nov 1970 [18 Nov 1969] 51932/70 Heading F1B In a rotary piston internal-combustion engine of the trochoidal type, the ignition timing adjustment means is so controlled in dependence on engine speed and on loading that for a predetermined loading the ignition timing is kept constant within a lower speed range, is then increasingly advanced within a medium speed range and is again kept constant in a following higher speed range and is advanced with decreasing loading.
Patent GB-1492737-A (GB)
Title: Treatment of exhaust gases of internal combustion engines by catalysts
IPC: B01D53/94
Filed: 1974-11-04
Abstract: 1492737 Purifying exhaust gases UNITED KINGDOM ATOMIC ENERGY AUTHORITY 4 Nov 1974 [8 Nov 1973] 51981/73 Heading ClA [Also in Divisions B1 and H5] I.C. engine exhaust gases are subjected to purification treatment, e.g. oxidation of carbon monoxide, by contact with a catalyst body comprising a substrate made of ferro-electric material, the surface of which is covered by a catalyst material, e.g. platinum, the catalyst body being pre-heated by passage of an electric current through the substrate, the substrate material having a positive temperature coefficient of resistivity and a Curie temperature point at which the resistivity of the material increases to such a value that the electrical current heats the catalyst body only up to the Curie temperature of the substrate, the temperature of the catalyst body being maintained at or above the Curie temperature by the exhaust gases. Suitably, the substrate has fluid flow paths therethrough, e.g. it is formed from separate spaced sheets or has inter-connecting pores. The substrate material may be a perovskite titanate, e.g. wherein X = R.E (e.g. La), Sb, Y, other trivalent metal or mixtures thereof; Z = Ba, Sr, Pb or mixtures thereof; Q = Nb, Sb, Bi, other pentavalent metal or mixtures thereof; and, y = 0À1. The platinum may be deposited by sputtering and reference is made to Specification 1,455,248.
Patent GB-1452916-A (GB)
Title: Piping apparatus for a floating or semi-submersible platform
IPC: B63B22/02
Filed: 1973-11-08
Abstract: 1452916 Liquid cargo transfer apparatus COFLEXIP 8 Nov 1973 [9 Nov 1972] 52002/73 Heading B8E [Also in Division E1] Apparatus for piping liquid from a sea-bed pipe, e.g. from an oil well, to a floating or semisubmersible platform for loading into a ship comprises a platform 1 having reservoirs for the liquid anchored in a fixed position, a sinker 4, and an air-tank 10 submerged sufficiently to be unaffected by swell. The sea-bed pipe 7 is connected at the sinker 4 to flexible pipes 8, 9 held vertical and in tension by the air-tank 10 connected in turn to the platform 1 by flexible pipes 11, 12. Alternatively Fig. 2 the air-tank 10 is connected to the platform 1 by an arm 13 having hinge connections 14, 16 at its end and the pipe connection is made by pipes 19 flexible at least adjacent the hinges. Two processes are described for positioning the sinker 4 and making the necessary pipe connections once the platform 1 is in position. In the first process the sinker 4 is initially a float and the pipes 7, 8, 9 are connected thereto on the surface after which the sinker is sunk under contral to the sea-bed where concrete is introduced through a pipe 24, Fig. 6, to anchor the sinker. In an alternative process, Fig. 7, the sinker 4 is connected to the air-tank 10 by guide cables 23 which allow flange connectors on the pipes 7, 8 to be guided to the sea-bed by eyelets 25 engaging them so that connection of the pipes can thereafter be remotely effected.
Patent GB-1158219-A (GB)
Title: Cathode-Ray Tube for Displaying Coloured Television Images.
IPC: H04N9/16
Filed: 1967-11-16
Abstract: 1,158,219. Colour television tubes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 16 Nov., 1966 [19 Nov., 1966], No. 52164/67. Heading H1D. The shadow mask 2 of a colour television tube is mounted in a rectangular frame 3 supported by at least three support members each in the form of two parallel strips 5 and 6 bent over at their ends to form a parallelogram, if necessary with the aid of auxiliary strips. The bent-over ends may be strengthened by auxiliary strips and the straight parts may be strengthened by pressing ribs into them so that thermal expansion causes deformation of the corners of the parallelogram, and any movement of the shadow mask is along the direction of the beam if the sides of the parallelogram are normal to this direction. The support member is provided with a triangular aperture that fits over a conical glass cam 4 provided on the face of the tube. In modifications (Figs. 2-4, not shown) the aperture is provided in an auxiliary strip secured to the bent-over ends of strips 5 and 6; the opposite bent-over ends may be secured directly to the frame 3 (Figs. 3 and 4, not shown) instead of being secured to each other. There are preferably four supporting members, one secured to the centre of each straight side of the mask.
Patent GB-1426439-A (GB)
Title: Venous flow stimulator
Inventor: MCGRATH JOHN ALAN
IPC: A61H23/04
Filed: 1972-11-13
Abstract: 1426439 Valves BOC INTERNATIONAL Ltd 13 Dec 1973 [13 Nov 1972] 52229/72 Heading F2V [Also in Divisions A5 and A6] In a magnetically operated valve 12, the rocker 18 is of a soft magnetic material, whereas 22 and 28 are permanent magnets. In the collapsed condition of the bellows 26, the field due to the magnet 28 is stronger than that due to the magnet 22 in influencing the rocker 18 so that a conduit 34 establishes a connection with the interior of the chamber 14. As the conduit 34 is also in fluid-communication with the chamber 24 an increase in pressure in the conduit 34 distends the bellows at a rate determined by the position of a needle valve 32. As the magnet 28 moves further away from the rocker 18, the force exerted by it on the rocker decreases and at a certain position where the force is less than that due to the magnet 22 in the rocker, the valve 12 closes.
Patent GB-1515199-A (GB)
Title: Monitoring and warning indication circuit for vehicles
IPC: B60Q11/00
Filed: 1975-12-22
Abstract: 1515199 Lamp failure alarms R K BURBIDGE 18 March 1977 [22 Dec 1975] 52374/75 Heading G4N Vehicle electric light failure warning systems comprising a bridge network arranged so that it is balanced when switching devices RS1-RS8, controlled by current flowing to the lights 1-8, are closed and unbalanced when any one switching device is open, an LED 13 of one colour being illuminated when the bridge is balanced and an LED 14 of another colour being illuminated when the bridge is unbalanced.
Patent GB-1244724-A (GB)
Title: Improvements in or relating to plate heat exchangers
Inventor: BAIN KENNETH LINDSAY
IPC: F28F9/02
Filed: 1967-11-17
Abstract: 1,244,724. Evaporators, plate type. PARKSON INDUSTRIAL EQUIPMENT CO. Ltd. 15 Nov., 1968 [17 Nov., 1967], No. 52386/67. Heading B1B. [Also in Division F4] In a plate heat exchanger, e.g. a condenser or evaporator, of the type having a stack of parallel plates 1 spaced apart by peripheral gaskets 12 to define alternate fluid flow paths respectively for a first fluid e.g. the liquid being evaporated (see arrows 23) and a second fluid e.g. a heating fluid (see arrows 24), fluid ducts 4, 4' and 8, 9 are sealingly attached to the plates. As shown the ducts are channel members of rectangular cross section open at one side and have flanges 10 which fit into L-shaped slots 11 in the edges of the plates 1a to 1f. Baffle plates 15 block the ducts 4, 4' at spaced locations to constrain the product to flow between the appropriate pairs of plates along the flow path indicated by arrows 23. Corrugated spacers (14, Fig. 3) placed in gaps formed in the gaskets 12 allow the respective heat exchange fluids to enter and leave the spaces between adjacent plates of the stack. In alternative forms (Figs. 5, 6 not shown) ducts of rectangular (Fig. 5) or arcuate (Fig. 6) are provided with cylindrical beads (18) at their free edges instead of the flanges 10, said beads fitting into circular or keyhole-shaped apertures (19) in the plates. In a simplified form (Figs. 7 and 8, not shown) the cylindrical beads (18) of each duct fit into arcuate indentations formed in the plates, the duct being sealingly held in position by external clamping means (see Fig. 8). The edges of the plates may be bent at right angles to form flanges (41, Fig. 9) between which suitably shaped gaskets (40) are fitted. In a further construction (Figs. 10-12, not shown) each plate the stack is provided with a gasketed strip-like portion (52) in the form of a loop fixed to the plate at the corner thereof by welding to define with adjacent plates a fluid duct (53).
Patent GB-1440666-A (GB)
Title: Fluid-tight joints
IPC: F16L31/00
Filed: 1973-11-12
Abstract: 1440666 Pipe couplings COMPAGNIE DU FILAGE DES METAUX ET DES JOINTS CURTY CEFILAC 12 Nov 1973 52507/73 Heading F2G A socket 1<SP>2</SP> is formed, in resilient non-circular tubing, to complement the length L and thickness e to which the spigot 1<SP>1</SP> is cut. During formation of the spigot and socket, the tubing ends are carried by circular cylindrical plugs (2, Figs. 5 and 6, not shown) over which they have been stretched. After removal of the plugs 2, the joint is secured by adhesive bonding or vulcanizing. During bonding, the joint may be compressed between an inflated bag (3, Fig. 7, not shown) and a tool (4).
Patent GB-1450896-A (GB)
Title: Process for the separation of nickel values
IPC: C22B3/32
Filed: 1972-11-17
Abstract: 1450896 Recovery of nickel values SHELL INTERNATIONALE RESEARCH MAATSCUAPPIJ BV 15 Nov 1973 [17 Nov 1972] 53198/72 Heading C1A Nickel values are extracted from an ammoniacal solution containing at least 5 g./l. nickel, not more than 100 g./l. ammonium salt and also cobalt (III) in a Ni : Co ratio wt. of at least 10 : 1, by contacting the solution with a solution of C 6 -C 20  tertiarylalkane monocarboxylic acids in a water-immiscible organic solvent, the molar concentration of acid being at least 0À1 M, the initial volume ratio organic phase : aqueous phase is at least 2 : 1. The extraction temperature is preferably 10-50‹ C. and the ammoniacal solution is suitably adjusted to pH 7À5-11 before extraction by means of CO 2 . Suitable organic solvents are 1,2-dichloroethane, aliphatic alcohols or ethers, or hydrocarbon oils, e.g. naphtha or kerosine. The extraction may be continuously counter-current, and nickel may be recovered from the organic phase as nitrate or sulphate by stripping with acid.
Patent GB-1520850-A (GB)
Title: Variable drive clutch for fishing reel
IPC: A01K89/015
Filed: 1976-12-21
Abstract: 1520850 Fishing reels SHAKESPEARE CO 21 Dec 1976 [19 Feb 1976] 53394/76 Heading A1A [Also in Divisions F2 and F2L] In a clutch-brake combination for a fishing reel a lug 36 fast with a driving shaft 10 holds a pawl 42 in engagement with a pin 46 on a driven gear 18 to rotate the latter when the shaft 10 rotates in the winding in direction and the pawl 42 is released on reverse rotation of the shaft 10 which is limited by a brake pawl 30 engaging teeth 33 on a ring 25 having a lost motion connection 39, 40 with the lug 36. Free rotation of the gear 18 in the unwinding direction is prevented by adjustably loaded drag washers 20, 21.
Patent GB-1283946-A (GB)
Title: Warp-knitting machine
Inventor: REINERS WALTER
IPC: D04B23/12
Filed: 1969-10-31
Abstract: 1283946 Knitting-machines W REINERS 31 Oct 1969 [2 Nov 1968] 53520/69 Addition to 1272785 Heading D1C The warp knitting-machine of the main Patent 46315/69 in which cut-to-length weft threads are positioned in holding and guiding means at the selvedges by a circulating thread guide, the selected weft thread is cut by a cutter constituting the thread guide. Thread guides 612, 613 moving in an elliptical path are mounted at either end of a series of rotating arms. The guides comprise a pair of jaws 612a, b which open at the left hand selvedge to cut and clamp a weft presented by an arrangement 354 similar to that disclosed in Parent Specification.
Patent GB-1382726-A (GB)
Title: Methods of preventing build-up in a polymerization reactor
IPC: C08F2/22
Filed: 1972-11-20
Abstract: 1382726 Graft polymerization process FOSTER GRANT CO Inc 20 Nov 1972 [24 Nov 1971(2)] 53608/72 Heading C3G An alkenyl aromatic monomer is grafted on to a rubbery polymer in latex form, in the presence of a catalyst and a water-soluble polyalkylene oxide in an amount sufficient to reduce or prevent the accumulation of polymer on surfaces in contact with the mixture to be polymerized. A second polymeric watersoluble organic compound may also be present in the formulation, e.g. a partially hydrolysed polyvinyl ester, polyglycol, cellulose derivative, gelatin or alginate. Acrylic monomers may be grafted together with the aromatic monomer. Examples are given in which styrene and acrylonitrile are grafted on to polybutadiene in an aqueous medium containing (a) polyethylene oxide or polyethylene oxide/ polypropylene oxide copolymer or (b) a mixture of polyethylene oxide with polyvinyl alcohol, hydroxypropyl methyl cellulose or polyvinyl pyrrolidone.
Patent GB-1125990-A (GB)
Title: Improvements in, and relating to a container for soft drink bottles
Inventor: NEEDT JAN HENDRIK
IPC: B65D1/24
Filed: 1966-12-05
Abstract: 1,125,990. Bottle crates. WIVA N.V. 5 Dec., 1966, No. 54366/66. Heading B8P. A bottle crate has hollow columns 8 at the intersection of the partitions 6, 7, diagonal ribs 11 at the bottom of each compartment and ribs 9 on each column 8 which extend downwardly to meet the ribs 11.
Patent GB-1282530-A (GB)
Title: Production of protective layers on cobalt-based alloys
IPC: C23C10/52
Filed: 1970-11-16
Abstract: 1282530 Coating cobalt based alloys with metals DEUTSCHE EDELSTAHLWERKE AG 16 Nov 1970 [5 Dec 1969] 54454/70 Headings C7B and C7F A cobalt based alloy is coated with Ni, one or more metals of the Pt group e. g. Pt, Pd, Rh or Ru, and Al, and the coating diffused into the substrate. In an example the substrate is sand blasted, degreased in a cyanide, copper free bath cathodically for 5 seconds and anodically for 15 seconds at 20C. and a current density of 5 amps/ sq. cm, followed by pickling in H 2 SO 4 , then nickel plated in a bath comprising 240 g/l of NiCl 4 .H 2 O, 120 g/l of 36% HCl at 45C. and a current density of 10 to 11 amps/sq dm. The Ni is heated for 2 hours at 260C and 3 hours at 450C., degreased electrolytically in a cyanide bath, pickled electrolytically in caustic soda, and then electrolytically in HCl, and Pt deposited electrolytically from a bath comprising 13 g/l of H 2 PtCl 8 , 45 g/l of (NH 4 ) 3  PO 4 , 240 g/l of Na HPO 4 , at a temperature of 75 C. and a current density of 5À5 amps/sq dm. The Pt layer is heattreated as before and the substrate then aluminized in a pack comprising 5% by weight of Al and 95% of alumina for 5 hours at 1,100C. The pack may contain a metal halide.
Patent GB-1366513-A (GB)
Title: Pharmaceutical compounds and compositions
IPC: C07D209/20
Filed: 1971-11-24
Abstract: 1366513 Lithium tryptophan BEECHAM GROUP Ltd 22 Nov 1972 [24 Nov 1971] 54497/71 Heading C2C [Also in Division A5] Lithium tryptophan salt is prepared from lithium hydroxide and tryptophan.
Patent GB-1278650-A (GB)
Title: Frequency divider circuit
IPC: H01L27/092
Filed: 1969-11-07
Abstract: 1278650 F.E.T. logic circuits CENTRE ELECTRONIQUE HORLOGER SA 7 Nov 1969 [11 Nov 1968] 54630/69 Heading H3T A pulse frequency divider includes a circuit, Fig. 5, receiving complementary inputs I 1 , I 2  and performing the functions A = BI 1  + AI 2  and B = BI 1  + AI 2 , wherein the outputs A and B are connected respectively to the commoned drains of a first pair of F.E.T.'s 2, 3 and the commoned drains of a second pair 6, 7, a further pair of F.E.T.'s 4, 8 having their sources connected to a voltage supply and their drains either connected respectively to a different source of each of the first and second pairs, or connected in common to all the sources of the first and second pairs (Fig. 6, not shown). Further F.E.T.'s 1, 5 are reciprocally coupled with F.E.T.'s 2, 6, the F.E.T. 8 being employed in the coupling of 5, 6. The inputs I 1 , I 2  are applied to the gates of F.E.T.'s 3, 7 and F. E. T. 4. In operation (Figs. 1, 2, not shown) and with I 1  = 1 (i.e. positive) and I 2  consequently 0, the starting conditions are A = B = 1, and A = B = 0. When I 1  = 0, F.E.T. 4 is turned on and F.E.T. 6 conducts because A is 1; therefore B becomes 0 as the state of F.E.T.'s 5, 6, is changed over. When I 1  = 1, F.E.T. 3 conducts through F.E.T. 8 which is on because of B being now 1; and the state of bi-stable F.E.T.'s 1, 2 is reversed. When I 1  = 0 again, I 2  turns on F.E.T. 4 and as F.E.T. 2 is conducting because of A being 1, A remains at 0, while F.E.T.'s 6 and 7 go off and B becomes 1 to change over the state of F.E.T.'s 5, 6. Finally I 1  = 1, and the initial state is restored, so that one pulse cycle appears at the outputs for two at the inputs. Erroneous operation resulting from a delay (R, Fig. 4, not shown) in the generation of complementary input I 2  from I 1  is said to be avoided by including a time delay. The alternative circuit (Fig. 6, not shown) having all the sources of F.E.T.'s 2, 3, 6, 7 interconnected operates similarly to Fig. 5. The load resistors 9, 10, 11, 12 may be F.E.T.'s (18, 19, 20, 21, Fig. 7, not shown), whose gates may be pulse-fed to limit power consumption. In another embodiment (Fig. 8, not shown) the circuit of Fig. 5 is combined with a circuit which is similar to Fig. 6 (not shown) but which uses opposite conductivity type F.E.T.'s.
Patent GB-1149319-A (GB)
Title: Superficially fluorinated rare-earth metal oxides
Inventor: PAPAILHAU JEAN
IPC: C01F17/229
Filed: 1967-12-04
Abstract: 1,149,319. Rare earth oxides. PRODUITS CHIMIQUES PECHINEY-SAINT-GOBAIN. 4 Dec., 1967 [5 Dec., 1966], No. 54979/67. Heading C1A. [Also in Divisions B3 and F4] Superficially fluorinated rare earth metal oxides are prepared in a compact or divided state by treating the oxide with a fluorinating agent, preferably in the form of a liquid, for example, an aqueous solution of HF or NH 4 F. The preferred oxide is lanthanum oxide, and the fluorinated layer produced is preferably not thicker than 1 micron. The weight of fluorine fixed is low, and in the examples is given as 0À32% wt. and 0À6% wt. using lanthanum oxide powder. After fluorination, rare earth metal oxides become resistant to hydration and it is possible to prepare a suspension of oxide powder in water.
Patent GB-1446230-A (GB)
Title: Chopper control system
IPC: H02M3/137
Filed: 1973-11-27
Abstract: 1446230 Automatic current control HITACHI Ltd 27 Nov 1973 [4 Dec 1972 24 Jan 1973] 54981/73 Heading G3R [Also in Division H2] The D.C. supply to a load is regulated by a chopper under the control of a magnetic phase shifter having a control winding and a load winding connected between an oscillator and the chopper. A further winding receives a feedback signal representing the detected value of a controlled variable. In the embodiment shown in Fig. 1, a D.C. series motor 2 receives power from a battery 1 by way of a chopper 3 controlled by a multi-vibrator 8 and magnetic phase shifter 9. The multi-vibrator 8 is a Royer oscillator with a saturable core 81 and an output winding 87 which supplies a squarewave signal to output windings 904, 905 of the phase shifter 9. Saturable cores 901, 902 of the phase shifter also carry a control winding 903, bias winding 909, time delay short-circuit winding 911, and feedback winding 910 which is supplied with. a voltage proportional to the motor current as detected by a resistor 7. In operation, a main thyristor 31 in the chopper 3 is turned on by a rectangular wave output from the phase shifter 9, while a thyristor 33 is turned on by the oscillator output signal as differentiated by a circuit 16. When thrystor 33 is turned on, a capacitor 35 supplies a reverse voltage which turns off both thyristors and the chopper 3. The current in feedback winding 910 flows in the opposite direction to current in the control winding 903, and the saturation timing of the cores 901, 902 corresponds to the current difference, so that the chopper conducting angle is controlled so as to regulate the motor current. The motor 2 can be braked by reversing the current in field winding 22 using devices 41, 42. Current then flows in diodes 5, 6 to produce self excitation and prevent reverse rotation. Possible instabilities in the circuit of Fig. 1 can be overcome by an arrangement, Fig. 3 (not shown), in which the differentiated oscillator output is used to turn the chopper on while the phase shifter is producing no output, and a differentiating circuit connected to the phase shifter output produces pulses for turning the chopper off. A further embodiment, Fig. 5 (not shown), includes a delay circuit (220) which prevents a pulse for turning on the chopper from appearing during the commutation interval.
Patent GB-1304498-A (GB)
IPC: G01N27/333
Filed: 1971-11-29
Abstract: 1304498 Ion sensitive electrodes CARLZEISS-STIFTUNG [trading as JENAER GLASWERK SCHOTT & GEN] 29 Nov 1971 [3 Dec 1970] 55377/71 Heading G1N An electrode for measuring ionic activity in solution, suspension or paste includes an ion sensitive barrier 1 removably inserted between upper stem portion 3 and a lower portion 5 so that the barrier 1 constitutes an exposed part of the side wall of the electrode. The parts are assembled and held together by shaft 6 extending from the base 5 and nut 9 or alternatively, Fig.2a (not shown) portion 5 may be screwed with a thread, shaft 6 being omitted on to a thread inside stem 3. The stem portion 3 is filled with solution 4 to provide a contact between barrier 1 and electrode 11, the lead 12 of which projects through cover 8, as shown, or through a bore in shaft 6, Figs.3, 4 (not shown). Barrier 1 may be in the form of an apertured disc sandwiched between the bottom of stem 3 and upper surface of part 5, Fig.5 (not shown). The barrier 1 may be constituted by two coaxial annular barrier layers, the outer one being in contact with the test solution and the inner one in contact with solution 4, Fig. 6 (not shown). Cell construction, Fig. 7 and Fig.8 (not shown) The barrier 1 may be annular or disc like and the cell includes a reference electrode 15 in solution 12 in contact with the test solution through a diaphragm 17. Diaphragm 17 may be replaced by an ion sensitive barrier, responsive to different ions to barrier 1, Fig. 9 (not shown) and which can be used as a reference electrode per se, contact thereto being by a solid state connection Fig.10 (not shown). The ion sensitive barrier (5) may be of ceramic, porous glass or plastics material impregnated with a solution of a soluble ion exchanger.