baber/WOPTO huggingface dataset:
Patent GB-1355706-A (GB)
Title: Device comprising a plurality of series arranged storage elements
IPC: G06F11/08
Filed: 1971-07-14
Abstract: 1355706 Digital processing circuit PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 14 July 1971 [17 July 1970] 33053/71 Heading G4H  A digital analyzing circuit comprises a fivestage shift register 15 to apply signals to the R, S inputs of 5 interconnected J-K flip-flops 1-5 via a gating circuit 7, the flip-flops being interconnected in series and in pairs such that the Q output of a stage is connected to the J input of the succeeding stage and the Q output of a stage is connected to the K input of the preceding stage, it being shown that after a binary word has been read into the series, after a suitable number of clock pulses have been applied at inputs T all "0's" will be shifted to the left and all "l's" to the right. The embodiment shown, which may be used as a digital filter, comprises a clock source 10 enabling information to be read in from 6 and providing shift pulses for the register stage 16-20 and gating pulses for the AND gates 22-31 of read in circuit 7. The J-K flip-flops 1-5 are such that a binary "1" at the R input causes a binary "1" at the Q output, and to avoid errors both R 1 S inputs receive signals, the connections at the various stages to the corresponding pairs of AND gates 22, 27 &c. being arranged such that when a particular input pattern is registered, all "1's" are entered into the stages 1-5. The clock pulses are also taken to AND gate 36 and to a frequency multiplier (X16) 37 and also to gate 36 such that 8 clocking pulses are received at the inputs T of stages 1-5 (sufficient to carry out the analysis) in one half of each clock pulse cycle, the read in being effected in the alternate halves. Since no "0" signals are required, an output circuit 32 is connected at the Q output of the first stage 1 to provide a "0" or "1" output at AND gate 32 indicative of an incorrect or correct input signal respectively. The read-out is performed at each shifting clock pulse but in a modification, Fig. 4 (not shown) a recycling count-to-five counter (39) is provided as an input to AND gate (36) such that the analysis is performed on only every fifth clock pulse, this embodiment being used as an, e.g. "2 out of 5" detector having an AND circuit (32) connected to the Q outputs of stages (3) and (4). In a modification, Fig. 5 (not shown) the same set of flipflops (42)-(46) is used both as shift register and analyzer interconnections being provided via AND and OR gates, and in a further modification, Fig. 6 (not shown) the flip-flops are replaced by two-stage bi-stable "NOR" circuits.
Patent GB-1508334-A (GB)
Title: Hydrocarbon conversion process and method of preparing a catalytic composite for use therein
IPC: B01J29/16
Filed: 1975-08-08
Abstract: 1508334 Catalyst for hydrocracking oils UOP Inc 8 Aug 1975 [9 Aug 1974 (2)] 33143/75 Heading C5E [Also in Division B1] Hydrocarbons are converted in the presence of catalysts comprising a crystalline aluminosilicate dispersed in alumina made by partly hydrolysing, with ammonium hydroxide in an aqueous medium, aluminium sulphate to give a soluble product, adding the aluminosilicate thereto, completing the hydrolysis of the partial hydrolysis product, ageing for 2-20 hours, separating the solid product, washing it free from soluble matter and either drying it or impregnating it with a Group VIA and/or VIII metal and calcining
Patent GB-422361-A (GB)
Title: Single or double sided automatic track brake operated by the weight of a vehicle
IPC: B61K7/04
Filed: 1933-11-27
Abstract: 422,361. Railway - - track brakes. VEREINIGTE EISENBAHN - SIGNAL - WERKE GES., Siemensstadt, Berlin. Nov. 27, 1933, No. 33155. Convention date, Dec. 17, 1932. [Class 103 (i] In a brake mounted on the railway track and in which the reaction braking member 2 and the swinging end of the braking member 3 are depressed with the girder 5 by the weight of the vehicle, the wheel D of which bears on a ramp 20 having one end bearing on the girder 5, the pivot 9 of the braking member 3 is fixed against vertical movement by a fixed bracket 11, so that both brake members move to an equal extent, to engage the wheels. The brake is held out of operation by a fluid-pressure piston 18. The member 2 is supported on a bracket 4 which is supported by roller 6 and sliding edge 7 and confined by bolts 8 on the girder 5. The member 3 is supported by a roller 17 on the girder 5. The pivot 9 carries a roller 10 rolling on the surface 14 of the bracket 4 and can move horizontally in a slot 13.
Patent GB-920867-A (GB)
Title: Stable synthetic resin aqueous emulsions
IPC: C08F271/02
Filed: 1961-09-18
Abstract: Graft polymers are made by polymerizing styrene or a water-insoluble homologue thereof, e.g. alpha-methylstyrene, in an aqueous solution of a polymeric N-vinyl lactam in the presence of a free-radical polymerization catalyst, e.g. hydrogen peroxide, sodium, potassium, barium and zinc peroxides, perboric, persulphuric and peracetic acids and their alkali metal and ammonium salts, organic peroxides, oxygen, ozone, redox systems and azo catalysts.  N-vinyl lactam polymers specified are those of N-vinyl-2-pyrrolidone, N-vinyl-2-piperidone, N-vinyl-6-caprolactam N-vinyl-5-methyl-2-pyrrolidone, N-vinyl-3,3-dimethyl-2-pyrrolidone, N-vinylhexahydrophthalimidine and N-vinylnaphthostyrile. Also present during polymerization may be surface active agents, protective colloids, plasticizers and thickeners.  Specifications 380,431, 380,851, 443,559 and 70,181 are referred to.
Patent GB-361584-A (GB)
Title: Improvements relating to steam generators or steam boilers
IPC: F22B17/02
Filed: 1930-11-06
Abstract: 361,584. Water-tube steam boilers. FRASER & FRASER, Ltd., Bromley-by- Bow. and ANGUS, A. R., 1, Tennyson Avenue, Wanstead, both in London. Nov. 6, 1930, No. 33414. [Class 123 (ii).] Inclined watertubes 10 connected to headers 13 outside the combustion chamber shell are nested in the combustion space, the headers being connected by external upward and downward circulating pipes 16, 15 to one or more pressure vessels 3 above them. A flue 4 through the pressure vessel may be replaced by vertical or horizontal smoke tubes, or where depth and head room are restricted, the pressure vessel may consist of a transversely arranged horizontal drum having its lower surface swept by the flue gases. The headers may comprise a dished tube plate 23, a wall 24 and reinforcing members 25 to which a cover 14 is secured removable to expose the ends of the tubes 10. Pipe 16 is of greater cross sectional area than pipe 15. In modifications two units each comprising a deep tube nest connected to headers may be set side by side and hot engine exhaust introduced into the combustion chamber. In a, plant utilizing the gases from a refuse destructor part or all of the gases may pass directly to the chimney to control the steam generation.
Patent GB-625014-A (GB)
Title: Improvements in or relating to acoustic devices
IPC: H04R7/02
Filed: 1945-12-11
Abstract: 625,014. Microphones. STANDARD TELEPHONES & CABLES, Ltd., and CRAGG, W. D. Dec. 11, 1945, No. 33461. [Class 40 (iv)]  An acoustic ribbon diaphragm is made of thermoplastic material and comprises a central stiff portion and an outer flexible portion whose inner edges can vibrate with the central stiff portion while the outer edges of the flexible portion are stiff. In the example shown, portions of the thermoplastic ribbon 4 are rendered flexible by corrugation, while the central stiff portion is provided with an aluminium electrode 6. The ribbon instead of being approximately straight as shown, may be bent up to an apex in the middle or into an S-bend. Specification 625,013 is referred to.
Patent GB-1553238-A (GB)
Title: Ventilator
IPC: A61M16/00
Filed: 1976-08-12
Abstract: Ventilator having an inhalation phase and an exhalation phase in its operative cycle for use with a source of gas under pressure. A demand flow accelerator is responsive to the pressure of the gases in a breathing head assembly and provides additional gases to the breathing head assembly when the pressure of the gases in the breathing head assembly falls below a predetermined pressure. A sensor is also provided responsive to the pressure of the gases in the breathing head assembly for supplying gases to the breathing head assembly when the pressure of the gases in the breathing head assembly falls below a predetermined value to cause the patient to exhale against a substantially constant positive airway pressure. An additional sensor is also provided which is sensitive to the airway pressure being sensed for bleeding gases from the breathing circuit when pressure greater than a predetermined pressure are reached. Lock-out means is provided for locking out an inspiratory phase which exceeds a predetermined time. Starting means is provided for ensuring that the ventilator will be switched to an expiratory phase before an inspiratory phase is initiated.
Patent GB-797184-A (GB)
Title: Improvements in the production of cycloheptene-(1)-carboxylic acid-(1), its alkali metal salts and its esters
Filed: 1956-11-05
Abstract: Cycloheptene-(1)-carboxylic acid-(1), its alkali metal salts and its esters with aliphatic alcohols are prepared by treating a 2,8-dihalocyclo-octanone with an alkali metal alcoholate or hydroxide in the presence of an inert medium which does not react with the alkali metal compound, and if required acidifying the product to obtain the free acid.  Preferred media for use with alkali metal alcoholates are the corresponding alcohols, when the product is the corresponding ester of cycloheptene-1-carboxylic acid, and using alkali metal hydroxides, water, when the alkali metal salt of the acid is obtained; other specified media are ethers and hydrocarbons. It is preferred to use at least 2 mols. of hydroxide or alcoholate per mol. of 2,8-dihalocyclo-octanone (at least 3 mols. per mol. when alkali metal salts are required), the concentration of hydroxide or alcoholate being between 1 and 50 per cent by weight, particularly between 3 and 10 per cent.  In examples: (1) and (3) 2,8-dibromocyclo-octanone is stirred with 10 per cent aqueous KOH at 5 DEG  C., the mixture acidified and cycloheptene-1-carboxylic acid-(1) isolated by ether extraction; (2) as in (1) but refluxing the octanone with 50 per cent KOH solution; (4) 2,8-di chlorocyclo-octanone and 10 per cent NaOH are reacted as in (1); (5) 2,8-dibromocyclo-octanone is added to 10 per cent sodium methylate in methanol at 5 DEG  C., the mixture acidified and the methyl ester of cycloheptene-1-carboxylic acid-(1) isolated by vacuum distillation; (6) to (8) similarly using KOH in ethanol, sodium butylate in butanol, and KOH in cyclohexanol, are obtained the corresponding ethyl, butyl, and cyclohexyl esters.  Starting materials 2,8-dichlorocyclo-octanone and 2,8-dibromocyclo-octanone are prepared by direct halogenation of cyclo-octanone in carbon tetrachloride.
Patent GB-869437-A (GB)
Title: Improvements in or relating to welded joints in tubular members of thermo-plastic material
IPC: B29C65/20
Filed: 1959-10-05
Abstract: 869,437. Welded tube joints. FISCHER A. G., G. Oct. 5, 1959 [Oct. 10, 1958], No. 33691/59. Class 99(1). A welded joint consists of one end of a tube 3, Fig. 2, fitted into and welded to the end of another tube 2 formed with a shoulder, both tubes being of thermo-plastic material, and a supporting ring 4 fitted inside the first tube to strengthen it, the ring being made of a material which softens, on heating, at a higher temperature than the thermo-plastic material of the pipes. To form the joint, the outer surface of tube 3 and the inner surface of tube 2 are heated by a member heated slightly above the welding temperature of the thermo-plastic material, and the end portion of tube 3 is pushed into tube 2, forming beads 5 and 6 due to the displacement of the softened material. As shown in Fig. 3, the supporting ring 7 has a collar 9 on its outer periphery, which when the end of tube 3 is pushed into tube 2 acts as a spacer between shoulder 11 and the end 10 of tube 3, forming an annular space 13 which receives the bead 12 of surplus material. The supporting ring may be of thermoplastic material or metal.
Patent GB-176118-A (GB)
Title: Improvements in and relating to fuel supply devices for internal combustion engines
IPC: F02M1/00
Filed: 1920-11-29
Abstract: 176,118. Russel, E. W. Nov. 29, 1920. Spray carburettors.-Light and heavy fuel mixtures may be supplied separately or in combination, the control of the mixtures being effected bv a valve actuated from the throttle valve and adjustable relatively thereto. Light and heavy fuel reservoirs supply nozzles 6, 7, Fig. 1, the air tubes around which discharge into an horizontal tube 8 connected at 9 with the induction pipe. A disc valve 10 determines whether the light or heavy fuel carburettor, or both, are in action. This valve is mounted on a rod 11, provided with stops 12 and actuated from the throttle-valve spindle 13 through a disc 16, Fig. 2, loosely mounted on the spindle and carrying an arm 17, and a resilient connection consisting of a pin 18 passing through the spindle and connected by a spring 19 to the disc. When the piston is in its extreme left-hand position, further movement of the throttle merely extends the spring. The rod 11 is returned by a spring 13 bearing against a cap at either the right or left-hand end thereof. The valve 10 may be made adjustable relatively to the throttle valve by providing the arm 17 with an adjustable extension 22, Fig. 2. which bears upon the cap 14 of the rod 11. To ensure that heavy fuel shall not be brought into action too soon after starting, a stop 23, Fig. 1, actuated from the dashboard, may be interposed in the path of the rod 11. In a modification, the disc valve 10 is replaced by a flap valve. The extra air supply may be controlled bv the throttle as described in Specification 176,301.
Patent GB-1281957-A (GB)
Title: Method of repairing and lining dental prostheses
Inventor: HOFACKER ERICH
IPC: A61C13/00
Filed: 1970-07-10
Abstract: 1281957 Lining and repairing dental prosthesis ETAB RIVOLAN 10 July 1970 33737/ 70 Heading ASR  A method of lining or repairing a dental prostheis with a hardenable fluid plastics material comprises the steps of applying a solution of a cataylst capable of hardening said material to the desired parts of a greasefree surface of the prosthesis and thereafter applying under pressure the plastios material to said parts and allowing it to harden. The catalyst is preferably sprayed onto the prosthesis followed by application or spraying of the plastics material from a tube or pressure apparatus and a further application of catalyst to the applied plastics material. The plastics material may be a polymer or copolymer dissolved in its corresponding monomer or monomers and, for example, may be 35 parts by weight of polymethyl methacrylate in 63 parts by weight of methyl methacrylate and 2 parts by weight of N, N-dimethyl-p-toluidine, or a co-polymer, of ethyl methacrylate and butyl acrylate, in methyl methacrylate with added glycol dimethacrylate and N,N-diethanol-p-toluidine. The catalyst may include a plasticising agent and be dissolved in a volatile solvent and may, for example, comprise 10 parts by weight of benzoyl peroxide dissolved in 90 parts by weight of ethyl acetate or ethyl methyl ketone, or 35 parts by weight of benzoyl peroxide in 65 parts by weight of dibutyl phthalate. Other examples of suitable hardenable plastics materials and catalysts are disclosed.
Patent GB-941839-A (GB)
Title: Improvements in or relating to containers for powdery or granular materials
Inventor: SHEPHERD DONALD WELTON
IPC: B65G47/00
Filed: 1960-10-03
Abstract: 941,839. Level indicators for hoppers; winding apparatus. PORTASILO Ltd. Sept. 29, 1961 [Oct. 3, 1960], No. 33867/60. Headings B8B and B8S. The level of material in hopper 1 is measured by a sensor 20 which is carried by a cable 25 wound on to drum 6. Material is blown into the hopper via pipe 3 the air serving to drive drum 6 by means of rotor 5. The drum therefore winds up the sensor 20. When no more material is blown in the rotor stops and the sensor 20 drops on to the surface of material, the position of the sensor and therefore of the level of material being indicated by the position of drum 6 which is connected to indicator 30 by flexible shaft 10. As the sensor 20 rises towards its upper limit 19 it abuts lever 46 and causes abutment 47 to press pawl 49 against the ratchet 34 of drum 6 to bring the drum and the sensor 20 to rest. Additionally should the tension of cable 26 be exceeded the cable causes a lever 27 to pivot and to bring pawl 37 into engagement with ratchet 34 to bring the drum to rest. Second embodiment, Fig. 4.-In this case the drum 6 is wound up by means of cable 66 operated by handle 65 to allow the sensor to drop on top of the material and thus indicate its level by means of pointer 63 moving over scale 62.
Patent GB-647004-A (GB)
Title: Improvements in and relating to articles having a wear resisting surface and method of making the same
IPC: C23C16/32
Filed: 1947-12-22
Abstract: In a method of making articles having a soft core and a coating containing at least one hard carbide, a halide of the carbide-forming element is formed from the oxide of the element in a heated chamber and led from there in the vapour state to another heated chamber containing the article in which it is converted to the carbide and deposited on the article.  The oxide of the carbide forming element, which may be boron, silicon, titanium or tungsten, may be mixed with a carbonaceous material, e.g. carbon black, and heated to 500-1000 DEG C in a vessel into which is passed chlorine or bromine vapour to form a halide of the element and carbon monoxide which mixture may be purified of excess halogen by passing through copper filings. Hydrogen is then added and the gaseous mixture, comprising, say, 10 per cent boron chloride, 30 per cent carbon monoxide and 60 per cent hydrogen, is led into a chamber containing the articles, e.g. core bodies of graphite, heated to 1200-1500 DEG C preferably by the passage therethrough of an electric current, and a layer of the carbide of the element is deposited on the articles.  Excess halide may be dissolved in carbon tetrachloride.  In a modification, hydrogen may be passed through a solution of the halide in carbon tetrachloride which may be heated to control the evolution of the halide.
Patent GB-943865-A (GB)
Title: Improvements in or relating to delay lines
Inventor: FROOM JOCELYN
IPC: H01J23/26
Filed: 1961-09-21
Abstract: 943,865. Travelling wave tubes. STANDARD TELEPHONES & CABLES Ltd. Sept. 21, 1961, No. 33870/61. Addition to 906,206. Heading H1D. The delay line structure of a travelling wave tube comprises two or more sets of parallel rods 1 extending between side walls 3 or between two further sets of side rods equivalent to side walls and a set of conductive junction rods 2 whereby at least two zig-zag delay lines 4 are formed. More than two rows of junction rods 2 may be provided to form additional zig-zag paths. The rods 1, 2 may be of the same or different crosssections and of round or rectangular crosssection. Metal plates may be attached to the side rods, when the latter are used in place of flat side walls, to strengthen the structure and to dissipate heat. The delay line rods are of gold plated tungsten, and the assembly is brazed together in a stainless steel jig, the gold flowing and uniting the assembly together. Additional spacing rods of molybdenum are interleaved between the straps during the brazing operation and are removed after the brazing operation by chemical etching. The two side walls or sets of side rods are then attached. One end rod is made longer than the others for coupling to an output waveguide inside the tube envelope. The device may operate with forward or backward waves, e.g. as a backward wave oscillator.
Patent GB-1060194-A (GB)
Title: A process for the preparation of a 1h-imidazo[1,5-c]-imidazole
IPC: C07D487/04
Filed: 1965-08-06
Abstract: A compound of the formula <FORM:1060194/C2/1> is prepared by treating 5-amino-1,3-bis(2-ethylhexyl) hexahydro-5-methyl pyrimidine with formaldehyde.
Patent GB-841910-A (GB)
Title: Improvements in or relating to pigmented coating compositions
Inventor: GODSHALK HENRY WEAVER
IPC: C09D133/12
Filed: 1957-10-30
Abstract: A coating composition comprises a methyl methacrylate polymer having a relative viscosity of 1,117-1,196 (as determined by the method described) as the preponderant film-forming material, solvent therefor, pigment, and 0,1-10 per cent by weight, based on the total weight of non-volatile constituents in the coating composition, of cellulose nitrate, propionate, butyrate, acetate-butyrate, acetate-propionate, or mixtures thereof.  Both methyl methacrylate homopolymers, and copolymers with minor amounts preferably from 2-25 per cent by weight of acrylic and methacrylic acids, alkyl acrylates with 1-4 carbon atoms in the alkyl group, alkyl methacrylates with 2-4 carbon atoms in the alkyl group, vinyl acetate, acrylonitrile, and styrene (and especially a copolymer of 98 per cent by weight methyl methacrylate with 2 per cent by weight methacrylic acid), may be used.  The cellulose ester preferably comprises 0,5-8 per cent by weight of the total weight of nonvolatile constituents in the composition.  A plasticizer for the polymer may be present, especially benzyl butyl phthalate in amount 10-50 per cent by weight based on the weight of the polymer.  Other preferred platicizers include dibutyl-, 2-ethylhexyl benzyl-, and dicyclohexylphthalates, and triphenyl phosphate.  Other plasticizers which may be used include diallyldibenzyl-, butyl cyclohexyl- and di (methyl cyclohexyl)- phthalates, mixed benzoic acid and fatty oil acid esters of pentaerythritol, poly (propylene adipate)- and diethylene glycoldibenzoates, tetrabutyl thiodisuccinate, butyl phthalyl butyl glycollate, acetyl tributyl citrate, dibenzyl sebacate, tricresyl phosphate, toluene ethyl sulphonamide and the di (2-ethyl hexyl) ester of hexamethylene diphthalate.  Pigments may include iron blues, organic reds and maroons, lakes, phthalocyanines, silica, talc, china clay, metallic oxides, silicates, chromates, sulphides, sulphates, and carbon black.  Solvents may include aliphatic, alicyclic and aromatic hydrocarbons (e.g. toluene, xylene), alcohols (e.g. isopropyl-, butyl-, and amyl alcohols and methyl isobutyl carbinol), esters and ethers (e.g. butyl acetate, methyl isobutyl carbinyl acetate, and ethylene glycol monoethyl ether acetate) and ketones (e.g acetone, methyl ethyl ketone, and methyl isobutyl ketone). Modifying agents may also be present e.g. soya lecithin, silicone fluids, triethanolamine, fatty oil acids and glyceride oil derivatives.  Specifications 676,765 and 801,337 are referred to.
Patent GB-521570-A (GB)
Title: Improvements in or relating to alternating current electric motors
IPC: D04H1/64
Filed: 1938-11-22
Abstract: 521,570. Alternating-current motors. JAPOLSKY, N. Nov. 22, 1938, No. 33962. [Class 35] A two-pole rotor for a synchronous motor is provided with a starting and synchronising winding consisting of a number of flat short circuited conductors arranged in slots in the rotor parallel to each other and to the rotor axis. These slots 5 are preferably of the same width and at a distance apart equal to this width. The conductors 4 may be separated at their ends by copper packing pieces 6 through which pass. rivets 7. The middle conductor may be a tight fit in its slot, so as to centre the rotor laminae, while the others are covered with a layer of insulating varnish. The ends of the conductors and packing-pieces may be recessed to receive the two-part motor-shaft 8, which is secured by a rivet 11. Specifications 466,881 and 466,952, [Group XXXVIII], are referred to.