baber/WOPTO huggingface dataset:
Patent GB-1026793-A (GB)
Title: Device for metering the flow of solid material
Inventor: BLACKMORE DONALD ERIC
IPC: B65G53/46
Filed: 1961-12-14
Abstract: 1,026,793. Delivering measured quantities of granular material. DERION Ltd. Dec. 12, 1962 [Dec. 14, 1961], No. 44876/61. Heading B8N. A device for metering granular material comprises a delivery rotor 6 and a metering rotor 2 adapted to limit the charge of material entering the pockets between the blades of the delivery rotor. The metering rotor is provided with a larger number of vanes than the delivery rotor so that the capacity of the metering rotor is less than that of the delivery rotor. The rotor 6 is continuously rotated and arranged so that the tip of a blade 7 strikes the end of a blade 8 causing the rotor 2 to intermittently rotate and discharge the contents of one pocket into one pocket of the delivery rotor. In a modification, instead of the blades of both rotors meshing, the metering rotor may be indexed around by means of a Geneva mechanism. Alternatively, the rotor may be continuously rotated via a direct drive from the shaft of the rotor 6 or, independently, by a motor.
Patent GB-1374323-A (GB)
Title: Production of monohaloacyl halides
IPC: C07C53/48
Filed: 1972-09-29
Abstract: 1374323 Monohaloacyl halides MONSANTO CO 29 Sept 1972 [26 Oct 1971 30 Sept 1971 (3) 31 July 1972 (3) 4 Aug 1972] 45053/72 Heading C2C Monohaloacyl halides are prepared by reacting an optionally substituted ketene with Cl 2 , Br 2 , I 2  or an interhalogen compound thereof in the presence of, as liquid solvent, one or more of (a) a cyclic carbonate of formula wherein R, R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP>, R<SP>4</SP> and R<SP>5</SP> are each hydrogen, halogen, methyl, chloromethyl, phenyl or ethyl and n is 0 or 1; (b) an alkoxyalkyl ester of formula wherein R<SP>6</SP> and R<SP>8</SP> are each C 1-5  alkyl radicals and R<SP>7</SP> is C 1-5  alkylene, the total number of carbon atoms in R<SP>6</SP>, R<SP>7</SP> and B<SP>8</SP> being 3 to 10 inclusive; (c) an ester of formula wherein R<SP>9</SP> is alkyl of at least 2 carbon atoms (e.g. 2 to 7) and R<SP>10</SP> is C 1-4  alkyl; or (d) a glycol diester of formula wherein R<SP>20</SP> and R<SP>11</SP> are each C 1-4  alkyl, R<SP>12</SP> to R<SP>19</SP> are each hydrogen, methyl or ethyl, with not more than 3 of R<SP>12</SP> to R<SP>19</SP> being other than hydrogen and a and b are each 0 or 1. The ketene and halogen or interhalogen are preferably introduced concurrently into the solvent using a molar ratio of halogen (or interhalogen) to ketene of between 1 : 1 and 1À3 : 1. The required cyclic carbonate may be formed in situ from the corresponding unsaturated carbonate by addition of the halogenating agent. The process may be carried out continuously or batch-wise. Examples describe the halogenation of ketene, methyl ketene and phenyl ketene with Cl 2  and Br 2  to produce the corresponding monohaloacyl halides. Acyl halides and dihaloacyl halides are obtained as by-products. Exemplified and specified solvents are: ethylene carbonate, tetrachloroethylene carbonate, 1,2- and 1,3- butylene carbonates, chloromethylethylene carbonate, phenylethylene carbonate, 1,2- and 1,3-propylene carbonates, 2,2-dimethyl-1,3-propylene carbonate, 1,2-diethyl-1,3-propylene carbonate, 1,2-dimethylethylene carbonate, 1,2- diethylethylene carbonate, all the solvents falling into category (b), the methyl, ethyl, propyl and butyl esters of propionic, butyric, valeric, caproic, enanthylic and caprylic acids and the acetates, propionates, butyrates and valerates of ethylene glycol, propylene glycol, trimethylene glycol, tetramethylene glycol, 1,2- butylene glycol, 1,3-butylene glycol and isobutylene glycol. Comparative examples use as solvents: methyl, ethyl, butyl and hexyl acetates, carbon tetrachloride, 1,2-dichloroethylene, acetonitrile, benzonitrile and nitromethane.
Patent GB-1077767-A (GB)
Title: A smokers' lighter
IPC: F23Q2/16
Filed: 1964-11-05
Abstract: 1,077,767. Lighters. HEINRICH MALTNER G.m.b.H. Nov. 5, 1964 [Nov. 7, 1963], No. 45213/64. Heading F4F. A gas lighter comprises a burner shielded by a frictionally inserted casing cap 3 into an opening 5 and removable independently of the remainder of the casing, the removable cap 3 having a rectangular aperture (23), Fig. 3 (not shown), in a side wall 21 for fitting as shown on to a flame adjusting lever 14, 15 to act as a handle, and having two bent-in portions 24 in the side wall 21 so that the cap may be fitted on to a flint-urging leg spring 19 to act as a handle for lifting the spring off the flint 18. A burner insert 7 on a fuel reservoir 6 has a burner tube 8 which is coupled to a combined burner and filling valve, which is engaged at 9 by a forked lever 11, 12 for opening or closing the burner valve, and which has a sleeve 10 to receiver the neck of a refill cartridge (not shown).
Patent GB-1152988-A (GB)
Title: Improvements relating to Controllable-Pitch Propellor Assemblies
IPC: B63H3/06
Filed: 1966-10-11
Abstract: 1,152,988. Variable pitch propellers. AVCO CORP. 11 Oct., 1966 [19 Oct., 1965], No. 45446/66. Heading B7V. [Also in Division F2] The pitch of a ship's propeller blades is varied by a screw-and-nut mechanism 44, 49 which axially moves a plunger 39 connected by rods 61 to propeller blade shafts 60 so that axial movement of the plunger 39 rotates the shafts 60 to vary the pitch of the blades. When the propeller is rotating at an adjusted pitch the screw 44 and nut 49 are driven from the hub 31 through slip couplings 42, 51 and thus no relative motion occurs. To vary the pitch in one direction a brake 58 holds the nut 49 whilst the screw is driven through the coupling 42 and thus screws through the nut 49 and moves the plunger 39 axially. To vary the pitch in the opposite direction a brake 56 holds a disc 48 keyed to the screw 44 whilst the nut is driven through the slip coupling 51 to move the screw and plunger 39 in the opposite direction. The brakes 56, 58 are fluid pressure operated.
Patent GB-1102671-A (GB)
Title: Improvements in or relating to rope slings
Inventor: LINDSAY WILLIAM ROY MACKINTOSH
IPC: B66C1/12
Filed: 1963-11-16
Abstract: 1,102,671. Rope slings. MARTIN BLACK & CO. (WIRE ROPES) Ltd. 16 Feb., 1965 [16 Nov., 1963; 31 Jan., 1964], Nos. 45513/63 and 4121/64. Heading B8H. [Also in Division D1] A steel-wire rope sling 1 is provided with a series of interengaging steel sleeves 4 which are held in engagement with one another by springs 6, 7, which abut a fixed collar 8 and a movable collar 9. The collar 9 has two halves which are screwed together. The sleeves 4 and collars 8, 9 and 10 all have chamfered ends. The sleeves may be of asbestos, synthetic resinous material or aluminium alloy. In a second embodiment, Fig. 4 (not shown), the sleeves are replaced by a single helical spring.
Patent GB-1087120-A (GB)
Title: Apparatus and process for the hydrodealkylation of alkyl aromatics
Inventor: LEHRIAN WILLIAM RICHARD
IPC: B01J3/04
Filed: 1965-10-28
Abstract: Alkyl aromatic hydrocarbons are hydrodealkylated to form benzene or naphthalene by preheating a mixture of the alkyl aromatic and hydrogen to 593-816 DEG  C., passing the preheated mixture into an elongated reaction zone, and maintaining the mixture in said zone at a selected isothermal temperature in the range 593-816 DEG  C. by passing air in indirect contact therewith. Detailed apparatus is described, comprising two connected elongated coils, in the first of which preheating takes place, and in the second of which the main part of the reaction occurs.  The second coil is cooled by air, which may be cool air near the inlet end and hot air adjacent the outlet end, since near the outlet end the reaction is less exothermic and therefore less cooling is needed  The air may be heated by means of burners on the walls of reactor housing near the outlet end. Additional temperature control may be provided by introducing a quench at any desired point in the coil, e.g. a hydrogen-rich gas.
Patent GB-1168242-A (GB)
Title: Manufacture of Pyridinium Salts
Inventor: COLCHESTER JOHN EDWARD
IPC: C07D213/20
Filed: 1966-10-13
Abstract: 1,168,242. Pyridium salts. IMPERIAL CHEMICAL INDUSTRIES Ltd. 20 Sept., 1967 [13 Oct., 1966], No. 45808/66. Addition to 1,070,295. Heading C2C. Pyridium salts are prepared by a process comprising the step of reacting in the liquid phase a possibly substituted glutaraldehyde, or a precursor thereof such as a 2-alkoxy-3,4- dihydro-2H-pyran, with a primary amine or salt thereof in presence of O 2 . Exemplified products are N-methyl- and N-benzyl-pyridinium chlorides, which are obtained by adding HC1 to the initial reaction products, apparently containing the corresponding acetates due to the use of HOAc as reaction medium. Reference has been directed by the Comptroller to Specification 1,099,642.
Patent GB-1093803-A (GB)
Title: Track laying vehicle
Inventor: SIBER ERWIN WALTER
IPC: B62D55/30
Filed: 1965-11-26
Abstract: 1,093,803. Endless-track tensioning devices. GO-TRACT Ltd. Nov. 26, 1965, No. 45873/66. Divided out of 1,093,802. Heading B7H. Tensioning means for the opposite tracks of an endlesstrack vehicle are controlled from the steering mechanism of the vehicle so that a higher tension is maintained in the inner track than the outer during a turn. Control valves 90, 91 connected to respective track tensioning rams 34 each include alternative positions in which fluid supplied by a pump 80 at a pressure determined by a relief valve 83 is applied to the rams 34 either through a pressurereducing valve 100 to provide a low-track tension or directly through non-return valves 102, 103 to provide a higher tension which is normally limited by the relief valve 83 but may rise to a limiting value set by a high-pressure relief valve 107. Solenoids 112, 113 which actuate the control valves 90, 91 are separately energized through switches 116, 117 associated with steering control levers or other steering control means 118, 119. A switch 122 associated with a gear selector 123 energizes the solenoids 112, 113 simultaneously to increase the tension in both tracks when the vehicle travels in reverse as described in Specification 1,093,802.
Patent GB-1179290-A (GB)
Title: Improvements in or relating to Photographic Light-Sensitive Elements
IPC: G03C1/38
Filed: 1967-10-06
Abstract: 1,179,290. Gelatine layers containing coating aids. FUJI SHASHIN FILM K.K. Oct. 6, 1967 [Oct. 11, 1966], No.45951/67. Heading G2C. Gelatine-silver halide emulsions, antihalation layers containing silver and protective layers of a light-sensitive element comprise a mono-sucrose ester of an allsenyl (8-18c) succinic acid as coating aid.
Patent GB-1372367-A (GB)
Title: Method for the purification of sewage
IPC: C02F3/30
Filed: 1971-10-04
Abstract: 1372367 Activated sludge process and apparatus NETHERLANDS ORGANISATION FOR APPLIED SCIENTIFIC RESEARCH ON BEHALF OF PUBLIC HEALTH 4 Oct 1971 [5 Oct 1970] 46032/71 Heading C1C In an activated sludge process sewage is fed into an aeration zone, mixed therein with activated sludge, and aerated for 3-12 times as long as the mixing period, and effluent is discharged to a settling zone from which sludge is returned to the aeration zone. The mean residue time of the sewage in the aeration zone is at least one day. In the process mixing takes place during the feeding-in period, discharging takes place during the aeration period, and aerating may take place during the feeding-in period. Iron salts may be added to the sewage or activated sludge mixture to aid in phosphate removal from the sewage. The process removes 90% or more of the nitrogen in the sewage. A suitable apparatus comprises four aeration tanks 1-4 (3-8 aeration tanks may be used) connected in parallel, settling tank 17, rotating means 5 for supplying sewage and activated sludge to the tanks 1-4 in turn, and valves (e.g. sliding) 10-14 for allowing discharge of liquid from tanks 1-4 in turn. The means 5 comprises two concentric compartments 21, 22 which receive sewage and sludge respectively and discharge it through openings 23, 24 respectively. Sewage is fed into one tank while sludge is fed into an adjacent tank. The apparatus comprises sieving device 29 and may comprise means for regulating the rate of discharge from the tanks 1-4, e.g. electrodes, time switches or level sensing means. The aerators 6-9 are preferably floating aerators with a vertical shaft. Below the aerators telescopic tubular arrangements may be provided to aid in the circulation of liquid in the tanks 1-4.
Patent GB-1363110-A (GB)
Title: Electrochemical cells having mixed valency transition metal perovskites as cathodic reduction catalysts
IPC: H01M4/90
Filed: 1971-10-04
Abstract: 1363110 Fuel cell electrodes ESSO RESEARCH & ENG CO 4 Oct 1971 46054/71 Heading B1E [Also in Divisions Cl C7 and H1] The cathode of a fuel or other electrochemical cell having an alkaline electrolyte has a catalyst comprising a mixed valency non- noble metal perovskite of the general formula A x A<SP>1</SP> y BO 3  where' A, A<SP>1</SP> are metals of different valencies selected from Groups IA, IIA and IIIA and B is a non-noble transition metal selected from Groups IVA, VA, VIA, VIIA and VIII, and the sum of x and y is 1, the perovskite being a solid solution of a first oxide having the formula ABO 3  and a second oxide having the formula A<SP>1</SP>BO 3 , the metal B having different valencies in the first and second oxides, the sums of the valencies of A and B and of A<SP>1</SP> and B both being 6. Preferably, A is a lanthanide series metal, A<SP>1</SP> is an alkaline earth metal and B is Ti, V, Cr, Mn, Fe, Co or Ni. Stoichiometric compositions of examples are: La 0À7 Ba 0À3 TiO 3 , La 0À7 Ba 0À3 MnO 3 , La 0À7 Ba 0À3 FeO 3 , La 0À7 Ba 0À3 CoO 3 . A cathode may be formed by mixing a desired perovskite with an aqueous emulsion containing P.T.F.E. applying the paste to a nickel or nickel alloy screen and subjecting the coated screen to heat and pressure. The cathode may also be used in electrolytic cells for the production of organic chemicals.
Patent GB-1025891-A (GB)
Title: Acoustic wave radiators
IPC: G01S1/72
Filed: 1962-12-06
Abstract: 1,025,891. Diaphragms. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Dec. 6, 1962 [Dec. 7, 1961], No. 46178/62. Heading H4J. A vibratable strip 1 (Fig. 2) is secured to a housing 2 by compliant material 6 which provides an air seal, the strip 1 being supported by a plurality of balls or rollers 4 (e.g. of metal) carried by an absorbent layer 5 (e.g. of rubber or plastics material). A metal strip 7, Fig. 3 (not shown), may be provided between the balls or rollers 4 and the absorbent layer 5 to prevent penetration of the balls or rollers 4 into the layer 5. Alternatively, pyramids 14, Fig. 4 (not shown) carry balls or rollers 4 at their apices. The device is an acoustic radiator and, because of the ratio of the contact surface of the strip 1 with the balls or rollers 4 and the ambient medium, there is an almost complete transmission of acoustic energy, fed to the strip, to the ambient medium.
Patent GB-931211-A (GB)
Title: Recovery of aliphatic chlorohydrins having from 3 to 5 carbon atoms from aqueous solution
Filed: 1961-12-27
Abstract: Aliphatic C3 to C5 chlorohydrins are extracted from aqueous solution with a liquid aliphatic C8 to C18, preferably at least C10, monoketone or monohydric alcohol, preferably both saturated, and optionally separating the organic from the aqueous phase. Glycerol dichlorohydrin especially, in solutions containing less than 10%, or between 2 to 4% by weight may be extracted.  Of numerous solvents, isobutyl heptyl ketone, 5-ethyl- 2-nonanol, isodecanol, 7-ethyl- 2-methyl-4-undecanol, and heptadecanol are particularly specified. The aqueous solution may contain an alkali metal halide, especially chloride, preferably sodium chloride, preferably in 5 gram per litre to saturation concentration.  The extraction may be effected at any temperature, preferably at 15 to 100 DEG C., batchwise or continuously, the chlorohydrin being recovered by distilling off from the higher boiling solvent, which may be recycled.  The aqueous solution may also contain hydrochloric acid.  Other chlorohydrins exemplified are propylene, butylene and isobutylene chlorohydrins. The examples illustrate both batchwise and continuous extraction processes.
Patent GB-1331987-A (GB)
Title: Preprocessing method and apparatus for pattern recognition
IPC: G06V10/40
Filed: 1970-09-30
Abstract: 1331987 Pattern recognition systems WESTINGHOUSE ELECTRIC CORP 30 Sept 1970 [17 Oct 1969] 46421/70 Heading G4R The description is substantially similar to that of Specification 1,331,986. The claims relate to a method of conditioning a computer, and to a computer when so conditioned, for classifying an unknown pattern in a field of view by extracting information representing measurements of parameters associated with selected points in the field. The parameters are chosen to be invariant, regardless of the orientation, scale or position of the pattern in the field, e.g. they may be the relative orientation of lines. The invariant parameter measurements are compared with reference measurements extracted from each of a number of reference patterns. If there is sufficiently close match between the invariant measurements and the measurements of one or more patterns, measurements representative of the geometrical relationships, e.g. spacing and orientation, between the points are normalized relative to reference measurements taken in respect of points in the reference patterns. The normalized measurements are compared with one another to determine whether there is a sufficiently close match between them. The unknown pattern is identified with one of the reference patterns by determining the greatest degree of match between the measurements of the unknown and reference patterns.
Patent GB-1485654-A (GB)
Title: Semiconductor device
IPC: H01L21/74
Filed: 1975-11-11
Abstract: 1485654 Semi-conductor devices ITT INDUSTRIES Inc 11 Nov 1975 [15 Nov 1974] 46521/75 Heading H1K Electrical insulation regions 50 or 76 of an anodized metal, in particular aluminium, are provided in a semi-conductor body by depositing the metal 44 (Fig. 4), on a dielectric layer 40 and in grooves (42), formed in the body, the thickness of the metal layer 44 being such that the metal layer in the dielectric layer and those in the grooves are not in contact with each other, and then anodizing the metal layers 44 in the grooves. The thickness of the vapour deposited aluminium is preferably 2/3 the thickness of an N-type epitaxial layer 34 having graded impurity concentration, and the anodic oxidation of the entire aluminium layer in the groove is carried out by immersing the semiconductor body in chromic, sulphuric, phosphoric or oxalic acid, the aluminium layer in the groove acting as anode, whereby on complete anodization aluminium increases in volume by 1À5 times and completely fills the groove. The aluminium layer may not be completely anodized in which case shorting between spaced apart portions of the epitaxial layer by the unanodized aluminium 68 is prevented by the formation of oxidized layers 66 along the walls of the grooves, Fig. 20, prior to the deposition of the metal, the unanodized metal layer subsequently acting as an electrical conductor for the entire integrated circuit formed in the semiconductor body. Base region, emitter region and collector contact region 58, 60, and 62 respectively, are diffused in each isolated epitaxial layer portion either before or after the anodization of aluminium using known photoresist techniques. P-type impurity may be diffused in the walls of the grooves prior to the formation of oxidized layers 66 to form P-type regions in the N-type epitaxial sub-layer (38), Fig. 3 (not shown) and the P-type substrate 30, but not in the highly doped N<SP>+</SP> epitaxial sublayer (36). Encapsulation of the integrated circuit with individual external connections for the emitter, base and collector regions is described, Fig. 9 (not shown).
Patent GB-1521750-A (GB)
Title: Air bleeding device for a liquid supply system
IPC: F02B1/04
Filed: 1975-11-13
Abstract: 1521750 Automatic air bleed and fuel cut off BRIDGEMORE ENG Ltd 8 Nov 1976 [13 Nov 1975] 46846/75 Heading F1B An automatic bleed system, for a fuel injector engine, comprises an air bleed valve 5 and a fuel cutoff valve 3 actuable according to the fuel level in tank 1 by a float 6. Magnets 12, 13 hold valve 3 open until fuel level drops to close valve via resilient strip 14A to prevent air being drawn into the injection pump if fuel supply to tank via pipe 7 fails. A warning device is operated by switch 11 actuated  by magnet 10 on follower 8. The follower may be contoured, 8A, or the pivot point may be movable or of the eccentric type so as to allow the movement of the follower to be related to the rate of fuel consumption. Fig. 2 (not shown), illustrates a fuel cutoff valve operated by a sliding magnet. The air bleed valve may be magnetically operated.
Patent GB-1046470-A (GB)
Title: Improvements in or relating to methods of manufacturing germanium-containing products from liquids containing fluorine and germanium
IPC: C01G17/00
Filed: 1963-11-29
Abstract: Germanium values are recovered from solutions containing also fluorine by precipitating the fluorine as calcium fluoride, acidifying the liquor containing the precipitate to pH 3 or below to redissolve any co-precipitated germanium and removing the precipitate to yield a fluorine-free germanium-containing liquor. The solution may be that obtained when germanium bodies are treated with fluorine-containing etchants.  Precipitation may be carried out by adding the solution to an aqueous suspension of calcium carbonate at 80 DEG  C., and concentrated nitric acid used for acidifying. Germanium-containing products, probably ammonium germanate or calcium ammonium germanate, are precipitated from the filtrate by addition of ammonia or ammonia and a calcium salt. Distillation of these precipitates with HCl yields germanium tetrachloride from which germanium oxide and germanium metal are obtained by known methods.
Patent GB-1034346-A (GB)
Title: High molecular weight polyethylene sulfide and method of making the same
IPC: C08G75/08
Filed: 1962-12-17
Abstract: The invention comprises solid crystalline polyethylene sulphides having a melting point of at least 203 DEG  C. and preferably 208 DEG to 212 DEG  C. They are prepared by polymerizing ethylene sulphide in an environment substantially free from elemental oxygen, substantially free from water other than water used in forming the catalyst and in the presence of a catalyst which is the reaction product of diethyl zinc and water or hydrogen sulphide.  The reaction preferably takes place at 20 DEG  to 80 DEG  C. in the presence of an inert solvent and the preferred catalysts are obtained by reacting 1 mole of water or hydrogen sulphide with 1 to 3 moles or 0.8 to 2.0 moles of diethyl zinc respectively. The reaction takes place in open or closed vessels and in an inert anhydrous atmosphere, e.g. nitrogen, using 0.05 to 3.0% of the catalyst based on the weight of monomer.  Suitable solvents include aromatic hydrocarbons, e.g. benzene, toluene or naplene; aliphatic hydrocarbons, e.g. isopentane, n-hexane, heptane, octane and chlorinated hydrocarbons, e.g. carbon tetrachloride; methylene and ethylene chlorides.  The products have excellent solvent resistance, may be moulded by conventional compression and extrusion techniques to give bodies having excellent impact resistance and machining properties and which are stable to sunlight and U.V. light.  Examples are given wherein polymers are prepared under varying conditions of temperature.