baber/WOPTO huggingface dataset:
Patent GB-1510499-A (GB)
Title: Process for the production of single cell protein by fermentation
IPC: C12N1/32
Filed: 1975-10-31
Abstract: 1510499 Mixing apparatus PHILLIPS PETROLEUM CO 31 Oct 1975 [6 Dec 1974] 45176/75 Heading B1C [Also in Division C6] A fermenter suitable for the foam culturing of micro - organisms has a draft tube 2, turbine 3 and emulsifying sieves 4, air inlet 11 and foam breaker 5. An inlet 8 and outlet 7 for the culture liquid are also provided.
Patent GB-1047016-A (GB)
Title: Improvements in polyurethanes and in intermediates therefor
IPC: C07H15/08
Filed: 1962-12-03
Abstract: Polyether polyols are prepared by condensing propylene oxide with a mixture of sorbitol and pentaerythritol, glucose, mannitol or sucrose. From 8 to 12 moles of propylene oxide are used per mole of polyol in the mixture.  The catalyst, e.g. sodium or potassium acetate, sodium methylate or a tertiary amine, is preferably removed from the product, e.g. by precipitation or evaporation.ALSO:Polyurethanes are prepared from polyethers prepared by reacting propylene oxide with a solution of pentaerythritol, glucose, mannitol or sucrose in molten sorbitol.  In an example, a pre-polymer prepared by mixing toluene disocyanate, benzoyl chloride, propylene oxide/sorbitol/sucrose condensate and silicone oil is foamed by reaction with a mixture of the above condensate, triethylene diamine, FC Cl3 and trimethylbutane diamine.
Patent GB-1445697-A (GB)
Title: 3-aminoisothiazolo-3,4-d-pyrimidines
IPC: C07D513/04
Filed: 1973-10-01
Abstract: 1445697 3 - Aminoisothiazolo - 3,4 - pyrimidines BASF AG 1 Oct 1973 [2 Oct 1972] 45725/73 Heading C2C Novel 3 - aminoisothiazolo - 3,4 - pyrimidines of the formula wherein R<SP>1</SP> and R<SP>2</SP> are hydrogen, optionally substituted (C 1- C 6 )alkyl or alkenyl, aralkyl or optionally substituted cycloaliphatic heterocyclic or aromatic radicals and R<SP>3</SP> is hydrogen, sulphonyl or acyl, are prepared by the oxidative cyclization of a 4-aminouracil-5-carboxylic thioamide of the formula The oxidative cyclization is suitably carried out in the presence of an inert solvent and/or suspension agent at a temperature of from 0‹ to 180‹ C. The novel compounds are useful as diuretics and as anti-inflammation agents and also may be used as fungicides.
Patent GB-1360418-A (GB)
Title: Anti-skid system for the wheels of vehicles
IPC: B60T8/66
Filed: 1971-10-01
Abstract: 1360418 Anti-skid systems WABCO WESTINGHOUSE GmbH 1 Oct 1971 [14 Oct 1970] 45828/71 Heading F2F In an anti-skid system, incipient locking of each wheel is detected by comparing its speed with a reference signal representing vehicle speed and derived from the rotational speed of the most rapidly rotating of the four wheels VL, VR, HL, HR through a signal shaping circuit 5 operating between preset limits of vehicle deceleration. Each wheel is also provided with acceleration and deceleration detectors 6a, 6b ... &c. which act through attenuators 8 and triggers 10 to produce signals "+b" or "-b" respectively. The wheel-speed signal from generator 2 is converted into D.C. at 3 and is fed to a comparator 11 together with the output from the shaping circuit 5 which maintains the vehicle deceleration within preset limits. If the comparator difference signal is excessive, a valve 13 is operated through logic circuit 12 (Fig. 2, not shown) to relieve the braking force. At the same time, but after a short delay, the "-b" signal from the deceleration detector prevents rapid restoration of full braking pressure. As the wheel gathers speed, the acceleration detector produces a signal, "+b" which only has effect (to cancel the "-b" signal) when it falls to a preset low level signifying that re-adhesion has taken place. Timers are employed to ensure stability.
Patent GB-1343089-A (GB)
Title: Preparation of peptides
Inventor: MUKAIYAMA T
IPC: C07K1/08
Filed: 1971-10-04
Abstract: 1343089 Process for peptides SANKYO CO Ltd 4 Oct 1971 [29 June 1971] 46118/71 Heading C2C In a process for peptides, an amino acid or peptide having a reactive carboxyl group, any other reactive groups thereof being protected, is reacted with an amino acid or peptide having a reactive amino group, any other reactive groups thereof being protected, in the presence of a triaryl phosphite and a disulphide of a mercapto heterocyclic compound containing a N to C double bond conjugated with the disulphide linkage. Preferably the triaryl phosphite is triphenyl-, a tris(chlorophenyl)-, a tris(methoxyphenyl)- or a tritolyl-phosphite, and the disulphide is 2,2<SP>1</SP>-dipyridyl sulphide, 2,2<SP>1</SP>-bis(5- nitropyridyl)-disulphide or 2,2<SP>1</SP>-bis(5-methylpyridyl)-disulphide.
Patent GB-1486704-A (GB)
Title: Device for bleeding fluid from a liquid system
IPC: B60T11/32
Filed: 1975-11-07
Abstract: 1486704 Bleeding brake system E H OIKARINEN 7 Nov 1975 [8 Nov 1974] 46258/75 Heading F2F A device for bleeding hydraulic brake systems having a number of bleeding nipples 15 acting as valves includes a continuously acting vacuum pump connectable to at least one nipple by a duct, the connecting piece for connection of the duct to a nipple being so constructed as to act as a tool for turning the nipple to open or close the valve arrangement. The connecting piece has a valve body 1 with a spindle 4, in a central bore 3, pivotally journalled and provided with an end nipple 11 housing an elastic bushing 13 designed to fit over the nipple 15 and the inner walls being hexagonal to co-operate with the nipple 15 so that when a wheel 14 is rotated the nipple 15 is screwed or unscrewed. The pump has a mouthpiece 33 which is connected to a source of compressed air and an admission port nipple 27, an outlet 32 being connected to a collector tank so that the device functions as an ejector pump.
Patent GB-1106389-A (GB)
Title: Improvements relating to leadscrew mechanisms
Inventor: FLETT ALEXANDER
IPC: F16H25/24
Filed: 1963-09-17
Abstract: 1,106,389. Screw-and-nut gearing. FAIREY CO. Ltd. 17 Dec., 1964 [17 Sept., 1963], No. 46304/63. Addition to 914,165. Heading F2Q. In a modification of the leadscrew mechanism described in Specification 914,165, the throttling restrictors 44 are not housed in the nut itself but are housed in a separate block 34 connected to the supply of high-pressure fluid. The throttling restrictors 44 comprise longitudinally bored rods mounted by circumferential ribs 45 and resilient sealing rings 46 in passages 38 which are connected by copper tubes 30 to the associated recesses in the surface of the nut. The block 34 comprises an upper portion 36 and a lower portion 35, a passageway 39 in the portion 36 interconnecting extension passages 38A and being connected by a passage 40 to an inlet socket 41. Test nipples 48 incorporating non-return ball valves are connected to the passages 38 so that the pressures may be checked by the application of a pressure gauge.
Patent GB-1426908-A (GB)
Title: 1-n--s--alpha-hydroxy-omega-aminoacyl- derivative of amino glycosidic antibiotics
IPC: C07H15/224
Filed: 1973-10-04
Abstract: 1426908 Aminoglycosidic antibiotic derivatives ZAIDAN HOJIN BISEIBUTSU KAGAKU KENKYU KAI 4 Oct 1973 [6 Oct 1972 19 Oct 1972 11 Dec 1972 23 Jan 1973] 46397/73 Heading C2C Novel compounds I (in which R is H or 1-4 C alkyl; R 1  is OH; A is H or a group of Formula X B is H or a group of Formula XI X is H or OH; Y is H or OH and n is 2 or 3; provided both of X and Y are not OH when A is H and B is H or a group XI) and acid addition salts thereof are prepared by reaction of a compound II in which at least one amino group (other than the 1-amino group) is protected, with a compound III (in which R 2  and R 3  are H or protecting groups) to give a compound IV followed by conventional deprotection. The compounds II are prepared by conventional methods. Examples describe the use of C 6 H 5 CH 2 OCO- and t-C 4 HgOCO- as protecting groups. Tri - N - benzyloxycarbonyl - 3<SP>1</SP>,4<SP>1</SP> - dideoxyneamine - 1,6 - carbamate is prepared by reaction of tetra - N - benzyloxycarbonyl - 3<SP>1</SP>, 4<SP>1</SP>-dideoxy-neamine with NaH. Pharmaceutical compositions used as antibiotics comprise a compound I together with a suitable excipient.
Patent GB-1529435-A (GB)
Title: Method for producing calcium sulphate hemihydrate and/or anhydrite
IPC: C04B11/02
Filed: 1974-10-26
Abstract: 1529435 Calcium sulphate hemihydrate and/or anhydrite FISONS Ltd 21 Oct 1975 [26 Oct 1974] 46413/74 Headings C1A Calcium sulphate hemihydrate and/or anhydrite crystals are obtained by the conversion of gypsum crystals of which at least 50 weight per cent have a length to breadth ratio of from 1:1 to 1:3, and which have a mean thickness of from 3 to 10 micrometres, and wherein initially at least 15%, typically 40 to 80%, by weight of the crystals are in the form of twinned crystals. The gypsum crystals may be those obtained in the process of U.K Specification 1,520,273. The conversion is preferably achieved by wet or dry calcination. The resulting hemihydrate or anhydrite crystals may be slurried in water for use in building products, e.g. plaster, plaster blocks and board. The addition of fibres prior to shaping the product is described and the products obtained possess high strength and fire resistance.
Patent GB-1474866-A (GB)
Title: Apparatus for removing dust from a gaseous current
IPC: B01D47/06
Filed: 1975-11-11
Abstract: 1474866 Gas cleaning apparatus H HOLTER 11 Nov 1975 46632/75 Heading B1R An apparatus for removing dust from a gaseous current comprises a wet agglomerator 10 with entry section 11 and spray nozzles 13 for a cleaning liquid, preferably water, inside a downwardly sloping casing 12, a two-stage separator comprising a first coarse drop separator 23 in the form of an arcuate slatted deflector 20 which deflects the gas stream upwardly but allows liquid drops to pass through into collector trough 26 and a second drop separator 28 in the form of a filter or gauze and associated collector trough 30 and fans 33 for inducting the gas through the apparatus. Nozzles 13 are fed with liquid in tank 17 via pump 15. Liquid collected in 26 and 30 is fed via pump 34 and, cyclone, separator 26 back to tank 17.
Patent GB-1059572-A (GB)
Title: Improvements in conveyors mounted on mining machines
Inventor: BASS JOHN JOSEPH
IPC: E21F13/02
Filed: 1962-12-11
Abstract: 1,059,572. Conveyers for mining machines. COAL INDUSTRY (PATENTS) Ltd. Dec. 10, 1963 [Dec. 11, 1962], No. 46699/62. Heading B8A. A cross-conveyer suitable for use on a mining machine as described in Specification 1,040,566, comprises a trough end portion 1b hinged at 7 to a main trough portion 1a. The end portion 1b is connected by a link 13 to an anchorage 14 and when the main portion 1a is caused to slide longitudinally in a cradle 8 towards that roadway side adjacent the end portion 1b the end portion swings upwardly until it assumes a vertical position. The movement of the main portion 1a provides clearance at the side of the roadway remote from the portion 1b of a width approximately equal to length of the portion 1b. The main portion 1a is caused to slide by a double-acting hydraulic ram 16 secured to the cradle 8, a piston-rod 16a being attached to a block 18 secured to the main trough portion 1a. To avoid excessive tension in conveyer chains 2 when the trough portion 1b swings upwardly, this portion is formed in two parts; a relatively fixed portion 30 and a tensioning portion 31 which slides on portion 30. A compression spring 34 is provided on each side of the portion 31 and urges this portion outwardly to tension the chains 2. The arrangement also permits the portion 31 to slide inwardly under the tension of chains when the trough portion pivots upwardly.
Patent GB-1328077-A (GB)
Title: Dual loop equalization for a frequency modulated signal system
IPC: H04N5/931
Filed: 1971-10-07
Abstract: 1328077 Television AMLEX CORP 7 Oct 1971 [8 Oct 1970] 46803/71 Heading H4F To equalize the non-uniform frequency ressponse of a video signal passed through a frequency modulating system, e.g. in magnetic recording specifically on a magnetic disc recorder, pilot signals of the same frequency are inserted into the video signal alternately at first and second bias levels respectively, e.g. black and white levels, before the signal is passed through the frequency modulating system. After the signal has passed through the system and before it is demodulated the pilot signals are extracted and compared with respective reference signals to develop corresponding error signals which are fed to differential gain and high frequency level equalizers, specific embodiments of which are described with reference to Figs. 4 and 5 not shown. The pilot signals are preferably inserted on to the vertical blanking waveform of the video signal.
Patent GB-1408938-A (GB)
Title: Roll out stand
IPC: B65H19/10
Filed: 1972-10-16
Abstract: 1408938 Roll-handling apparatus; winding webs HARRIS CORP 16 Oct 1972 [22 Nov 1971] 47558/72 Headings B8H and B8R Roll handling apparatus for lifting a roll A of paper or webbed material from the ground and holding the same during winding or unwinding and then depositing the roll on the ground comprises a wheeled vehicle having a rear position 12 which is wider than a portion 14 extending therefrom such that the apparatus is L-shaped when viewed from above, roll support arms 26, 30 being mounted on a shaft 24 which extends along the portion 14 and which is rotatable about its own axis, thus providing for the rotation of the arms 26, 30 to either side of the vehicle, the position of the arm 30 being movable along the shaft 24 by means of a leadscrew shaft 38 which is received in a journal 36 on the arm 30 and is rotatable by means of an hydraulic motor 42 such that the arms 26, 30 can handle rolls of different size. Rotation of the shaft 24 is effected by means of first and second hydraulic rams 50, 58, Fig. 5, which are housed in the rear portion 12 and which are respectively coupled to ears 54, 62 fixedly secured to the shaft 24 which is rotatably supported in bearings 46, 48. The drive for the roll handling is provided by an hydraulic motor (125) which is coupled to the rear wheels 18 of the vehicle, Fig. 2 (not shown), and the motors 42 and (125) are controlled by means of solenoidoperated valves (128, 118) while the rams 50, 58 are controlled by a solenoid-operated valve (100), the valves (100, 118, 128) being part of an hydraulic circuit, Fig. 9 (not shown), which is located in a control unit 20 on the vehicle, the valves (100, 118, 128) being in communication with an hydraulic oil supply tank (82) by means of supply (90) and return (92) conduits. The arms 26, 30 engage with the core C of the roll A by means of respective chucks 28, 32, each of which is mounted on a spindle having a tension brake 27, 31. The vehicle is provided with front wheels 16 which, together with the rear wheels 18, run in tracks 70 (72, 74), Fig. 2 (not shown)
Patent GB-1440302-A (GB)
Title: Track following servo system
IPC: G05D13/62
Filed: 1974-11-05
Abstract: 1440302 Automatic control of transducer position INFORMATION STORAGE SYSTEMS Inc 5 Nov 1974 [5 Nov 1973] 47894/74 Heading G3R The position of a read or write transducer 10 relative to a circular track on a data record disc 11 is kept constant by a system in which a pair of adjacent servo tracks 16, pre-recorded with signals at different frequencies F 1 , F 2 , are read by the same or a separate transducer 17 whose single output is connected to two circuits (channels 1 and 2) which also receive respective "reference" frequency signals f 1 , f 2 , the circuits being arranged to derive signals whose frequency is equal to the difference of f 1  and F2 (channel 1) and f 2  and F 1  (channel 2), the amplitudes of these difference frequencies being compared at 14 to control the radial position of the or each transducer. The circuits comprise "modulators" 24, 25 which actually produce sum and difference combinations of the servo and reference frequencies, but by making the reference frequencies close to the respective servo frequencies it is easy to separate the desired signals by filters 26 ... 29. Their magnitudes are detected by peak rectifiers 30. The reference frequencies are produced by an oscillator 26 which may be "locked" to the rotational speed of the disc, thereby compensating for speed induced changes in the frequencies F 1 , F 2 . The system enables the frequencies F 1 , F 2  to be fairly close, thereby avoiding errors due to non-linearities in the frequency response of the record/playback apparatus, which occur in the prior art.
Patent GB-977598-A (GB)
Title: Steroidal cyclic trithiocarbonates and process for preparing them
IPC: C07D339/06
Filed: 1962-12-19
Abstract: The invention comprises a steroidal cyclic trithiocarbonate having the following partial formula: <FORM:0977598/C1/1> and a process for the preparation thereof wherein a 2, 3-epithio-steroid having the following partial formula: <FORM:0977598/C1/2> in which the ripple mark (#x) denotes an a - or b -configuration, is reacted with an alkali metal O- (lower) alkyldithiocarbonate to give the corresponding steroidal cyclic trithiocarbonate. The alkali metal o- (lower) alkyldithiocarbonate may be prepared by reacting carbon disulphide, lower alkanol and alkali metal hydroxide. Specification 977,599 is referred to.
Patent GB-1089588-A (GB)
Title: Temperature responsive switch
IPC: H01H37/52
Filed: 1965-11-12
Abstract: 1,089,588. Thermal switches. J. BARZ. Nov. 12, 1965, No. 48046/65. Heading H2B. On rise in temperature, the central portion 33 of a bimetallic spider 32 rises, lifting a contact actuating plunger 29 The feet 35 of the limbs of the spider rock in a continuous or discontinuous circumferential groove 36 in a thinwalled metal shell 24, 25 until the contacts 14, 15 engage, whereupon, if the temperature continues to rise, the feet slide radially outwardly in the groove 36. The metal shell 24, 25 is mounted on a. plastics, body 2 containing the contact chamber 8 by a collar 28 and is sealed thereto by epoxy resin. The operating temperature is set during manufacture by an adjusting screw 23 which acts on the fixed contact 14 and its set position is maintained by an epoxy resin seal.
Patent GB-1077713-A (GB)
Title: Improvements in cleats
Inventor: PIDCOCK CLAUDIUS WILLIAM
IPC: F16G11/00
Filed: 1962-12-24
Abstract: 1,077,713. Cleats. AVON RUBBER CO. Ltd. Feb. 13, 1964 [Dec. 24, 1962], No. 48547/62. Heading E2A.  A cleat comprises a centrally disposed member a about which a rope may be wound and two opposed jaw portions b and c formed integrally therewith, one portion having an undercut groove d adjacent the centrally disposed member, the jaw members together providing inwardly convergent jaws yieldable to receive therebetween and resiliently gripe the rope.
Patent GB-1144085-A (GB)
Title: Catalyst regeneration process
Inventor: HOWMAN ERIC JAMES
IPC: B01J23/92
Filed: 1966-11-02
Abstract: 1,144,085. Regenerating disproportionation catalysts. BRITISH PETROLEUM CO Ltd. 29 Sept., 1967 [2 Nov., 1966], No. 49063/66. Heading B1E. A process for the regeneration of a deactivated Re 2 O 7  on Al 2 O 3  catalyst which has become deactivated after use in olefin disproportionation reactions due to deposition of carbonaceous materials comprises treating the deactivated catalyst with oxygen on an oxygen containing gas mixture at 200-700C. An example describes the regeneration of a spent Re 2 O 7  on γ-Al 2 O 3  catalyst by purging with nitrogen containing 1% oxygen at 300C followed by treatment with air and then nitrogen at 580C.
Patent GB-1133547-A (GB)
Title: Hydrocarbon polymers
IPC: C08F210/00
Filed: 1967-10-30
Abstract: 1,133,547. Hydrocarbon polymers. GOODYEAR TIRE & RUBBER CO. 30 Oct., 1967 [12 Dec., 1966], No. 49115/67. Heading C3P. A polymer consists of units derived from ethylene, an alpha olefin of structural formula R-CH=CH 2  wherein R is an alkyl radical of 1 to 4 carbon atoms, and ethylidene bicycloheptene. The olefin may be propylene, and the polymer may have a cross-linked content of less than 2% by weight, an iodine number of from 2 to 25, and be suitable for sulphur-curing to form an elastomeric material. The polymer is prepared by polymerizing the units in the presence of a catalyst prepared by mixing at least one of the following vanadium compounds: the tetrachloride, oxytrichloride, acetylacetonate, oxy-bis-(acetylacetonate) or tri-n-butoxyvanadate, with at least one of the following organo-aluminium compounds; R 3 Al, R 2 AlX, RAlX 2  and Al 2 R 3 X 3  wherein R is an alkyl radical having from 1 to 12 carbon atoms and X is a chlorine or a bromine radical. The preferred catalyst is prepared by mixing vanadium oxytrichloride and ethyl aluminium sesquichloride. In the examples, ethylene and propylene, pretreated by passing through a column of aluminium tri-isobutyl in kerosene, and a molecular sieve column, are polymerized in a benzene solvent with 2 - ethylidene bicyclo- [2,2,1]-hept-5-ene using benzene solutions of the preferred catalyst components. The polymerization is stopped by deactivating the catalyst with isopropyl alcohol, and the polymer is then coagulated with isopropyl alcohol containing 2,6-ditertiary butyl cresol, resuspended in isopropyl alcohol and finally dried. The polymeric material is mixed with (1) zinc oxide, tetramethyl thiuram monosulphide and sulphur, or (ii) carbon black, " Circosol ", zinc oxide, tetramethyl thiuram disulphide, mercaptobenzothiazole, zinc di-butyl dithiocarbamate, stearic acid and sulphur, and the mixture cured to form an elastomeric product.
Patent GB-1172940-A (GB)
Title: Improvements in and relating to a Semiconductor Arrangement
Inventor: KELLER EDUARD
IPC: H01L23/051
Filed: 1968-10-18
Abstract: 1,172,940. Semi-conductor device. BROWN, BOVERI & CO. Ltd. 18 Oct., 1968 [20 Oct., 1967], No. 49598/68. Heading H1K. An over-voltage protector has two semiconductor diodes 3 in series opposition and held against the end walls 2 of their container by spring washers 7 acting on thrust discs 6. Tinfoil is provided between each disc and its associated semi-conductor wafer and between each wafer and the associated end wall.
Patent GB-1500240-A (GB)
Title: 8-and 9-exo-formyl-endo-tricyclo(5.2.1.02,6)deca 3-enes
IPC: C07C45/50
Filed: 1976-11-29
Abstract: 1500240 8-Methylene tricyclo-[5.2.1.0<SP>2,6</SP>] decane KAO SOAP CO Ltd 29 Nov 1976 [4 Dec 1975] 49685/76 Heading C5E [Also in Division C2] 8-Methylene-tricyclo (5.2.1.0<SP>2,6</SP>) decane is prepared from tricyclo (5.2.1.0<SP>2,6</SP>) deca-8-one by reduction in diethyl ether using triphenyl methyl phosphonium bromide.
Patent GB-1526860-A (GB)
Title: Spoilers for truck cab
IPC: B62D35/00
Filed: 1976-11-30
Abstract: 1526860 Wind deflectors FORD MOTOR CO Ltd 1 Aug 1977 [30 Nov 1976] 49886/76 Heading B7J In a cab roof spoiler assembly vanes 20 are each pivotally mounted between a pair of supports. 14, 16, 18 which project upwardly from a base, the vanes being pivotable into either substantially horizontal positions or into generally vertical positions to form an airflow deflecting surface.