baber/WOPTO huggingface dataset:
Patent GB-1462798-A (GB)
Title: Ball joint
IPC: F16C11/08
Filed: 1974-11-27
Abstract: 1462798 Ball joints with pre-loaded resilient bearings TOKAI TRW & CO 27 Nov 1974 [29 Nov 1973] 51483/74 Heading E2F A ball joint comprises a metal housing which receives a metal ball stud 4 and a resilient bearing 3 of polymer material, and resilient metal closure means which closes an open end of the housing and acts to preload the bearing; upper and lower annular surface portions of the ball 401 being respectively associated with region 201 of the housing and a region of the closure means with either slight clearance or light contact pressure so as to support the ball against any loading which deflects the bearing against the pre load. As shown the closure means comprises two plates 5 and 6. The plate 5 is dished at the centre 501 and has a planar edge 502 which does not engage the housing; plate 6 is of similar shape and is engaged by portion 204 of the housing to hold plate 5 against the bearing 3. Alternatively the edge 502 of plate 5 could be of corrugated form and if required plate 6 could be omitted. The ball is hollow with an opening in its lower surface and lubricant openings 304 are provided in the bearing; lubricant being contained by the plate 6 and a flexible dust cover (Fig. 1, not shown) extending between the ball stem 402 and the housing. .
Patent GB-1113300-A (GB)
Title: Improvements in or relating to the formation of tubular films of synthetic resin
IPC: B29C48/10
Filed: 1966-11-18
Abstract: 1,113,300. Tubular films. KOKOKU RAYON & PULP CO. Ltd. 18 Nov., 1966 [26 Nov., 1965], No. 51683/66. Heading B5B. Tubular films of synthetic polymeric material such as polyethylene or polypropylene, are prepared by extruding the molten polymer through an extrusion orifice in the form of an annular slit, the film being cooled internally by passage over a cooling mandrel, and externally by passage through a tank of cooling liquid about the mandrel, the extrusion die being rotated during the process. Preferably the die, cooling mandrel, and tank are held in fixed relationship and are oscillated slowly together through about 180 degrees. The tubular film may be inflated by known means as it emerges from the annular slit. The molten polymer enters a passage 2 in the apparatus, between outer die 1 and inner die 3, to emerge through the annular slit 4. It then passes over a cooling mandrel 7 cooled internally by a cooling fluid passing through conduits 5, 5<SP>1</SP>, the cooled film emerging between the mandrel and a sealing ring 11 to be passed through nip rollers 19 and thence to be wound on a drum (not shown). The cooling tank 10 is hung in position by a bracket 14, secured by bolts 16 to the top surface of the outer die, which has a coating 13 of heat insulant. The relative positions of the cooling tank and mandrel may be adjusted by bolts 18 and 181. A sprocketwheel 15 connects the apparatus to an oscillator (not shown).
Patent GB-1374096-A (GB)
Title: Arrangement for controlling the torque of a supercharged fuel- injected vehicle engine
IPC: F01L1/00
Filed: 1971-11-08
Abstract: 1374096 Regulating I C engine fuel injection TATRA NARODNI PODNIK 8 Nov 1971 [9 Nov 1970] 51745/71 Heading F1B A fuel injection pump regulator 4 is connected to the intake manifold 3 of a supercharged engine by a pipe 2 and a valve 1 in the pipe connects the pipe to an atmospheric pressure connection 8 under the control of a sensor 7 in the gear changing mechanism of the engine transmission. The valve 1 operates to limit the engine torque in dependence upon the transmission gear engaged and may be a multi-position valve which is operated by respective sensors 7 associated with the transmission gears. The engine torque may be limited when the transmission is disengaged.
Patent GB-526024-A (GB)
IPC: C07D233/86
Abstract: 526,024. Urea derivatives. JACKSON, L. MELLERSH-. (Parke, Davis& Co.). Sept. 12, 1939, No. 25666. [Class 2 (iii)] 5.5-Diphenyl hydantoins and 5.5-diphenyl thiohydantoins are prepared by reacting an oxidizing agent and urea or thiourea in the presence of an alkaline solution with a benzoin R-CH-CH-R<SP>1</SP> of formula #OH #O where Rand R<SP>1</SP> are members of the group consisting of unsubstitututed phenyl radicals and phenyl radicals having a hydrogen replaced by a non-reactive substituent. Suitable oxidizing agents are halogenoxy acids in the form of their alkali metal or ammonium salts. Potassium persulphate, ammonium persulphate and the like may be used. Non-reactive substituents mentioned are methoxy, ethoxy, propoxy, butoxy, dimethoxy, methylene diethoxy, aryloxy, or aralkoxy groups. The reaction of the benzoin compound with the urea or thiourea and the oxidizing agent is preferably carried out in aqueous solution but neutral organic solvents such as alcohols, glycols and other polyhydroxy alcohols may also be present. In the examples (1) urea and benzoin react with an alkali metal salt of a halogen oxy acid in the presence of caustic soda and the sodium salt formed is treated with carbon dioxide to give 5.5-diphenyl hydantoin ; (2) urea, anisoin (p.p<SP>1</SP>-dimethoxylbenzoin) and potassium bromate react in the presence of sodium hydroxide and the product is treated with carbon dioxide to give 5.5- dianisyl hydantoin; (3) thiourea, benzoin, and potassium bromate react in the presence of sodium hydroxide and the product is treated with carbon dioxide to give 5.5-diphenyl-2- thiohydantoin.
Patent GB-1532257-A (GB)
Title: Cyclopentene derivatives and processes for their preparation
IPC: C12P41/00
Filed: 1975-12-23
Abstract: 1532257 Siloxy cyclopentene derivatives TEIJIN Ltd 23 Dec 1975 [27 Dec 1974 (2) 13 March 1975 17 April 1975 (3) 21 April 1975 (4) 28 May 1975] 52652/75 Heading C3S [Also in Division C2] The invention relates to the preparation of cyclopentene derivatives and to certain of the products per se, a 4-siloxy protected hydroxy cyclopent-2-en-1-one is prepared by oxidizing the monohydroxy protected derivative of a trans-cyclopent-1-en-3,5-diol. A monohydroxy protected derivative of an (R)- or (S)-transcyclopent-1-en-3,5-diol is prepared by reacting an (R)- or (S)-trans-cyclopent-1-en-3,5-diol with a protecting group-forming agent which can form an eliminatable silyl protecting group by reacting with the hydroxyl group of the diol, the reaction being carried out by maintaining the diol in a stoichiometric excess in the reaction system. A monohydroxy protected derivative of (R)- or (S)-trans-cyclopent-1-en- 3,5-diol may also be prepared by eliminating chemically or enzymatically one of the protecting groups from a dihydroxy protected derivative of (R)- or (S)-trans-cyclopent-1-en-3,5- diol. An (R)- or (S)-4-siloxy-protected hydroxycyclopent-2-en-1-one is prepared by reacting an (R)- or (S)-4-hydroxy-cyclopent-2-en-1-one with a silylating agent. A compound of the formula where R is a trialkylsilyl group and R<SP>1</SP> is an acyl group of 2-11 carbon atoms, a benzyl group or a carbobenzyloxy group is prepared by reacting a compound of the formula with a trialkylsilyl halide. The invention further comprises the mono-t-butyl-dimethylsilyl ethers of (R)- and (S)-trans cyclopent-1-en-3,5-diol, (R)- and (S)-4-(t-butyldimethylsiloxy) cyclopent-2-en-1-one, (R)- and (S)-trans-3-acetoxy- 5-t-butyldimethylsiloxycyclopent-1-ene, (R)- and (S) - trans - 3t - butyldimethylsiloxy - S - [(+)- α - methoxy - α - trifluoromethylphenylacetoxy] cyclopent-1-ene.
Patent GB-1086230-A (GB)
Title: Frequency detection system
IPC: H04L7/027
Filed: 1965-12-13
Abstract: 1,086,230. Frequency analysis. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 13, 1965 [Dec. 28, 1964], No.52765/65. Heading G1U. A system for detecting the basic frequency of a signal includes a number of parallel channels 30(N) each tuned to a different frequency, and. each producing on lines 39(N) an output representative of the strength of the signal accepted by that channel, and differencing means 60(N) for producing output signals on lines 76(N) which represent the difference between the output voltages from adjacent pairs of channels. As described, each differencing means comprises an ADD circuit to which is fed the output from one channel and the inverted output from an adjacent one.
Patent GB-1403402-A (GB)
Title: Method of making heat-shrinkable thermoplastics sleeve- like members
IPC: B29C48/10
Filed: 1972-06-30
Abstract: 1403402 Sleeved containers OWENSILLINOIS Inc 30 June 1972 [30 June 1971] 53058/74 Divided out of 1403401 Heading B8D [Also in Divisions B5 and F2] The subject matter is as disclosed in the Specification 1,403,401, but the claims relate to cutting sleeve blanks from a strip on a vacuum feed drum and winding the blanks around a mandrel.
Patent GB-1383652-A (GB)
Title: Manufacture of anthraquinone disulphonic acids
Filed: 1971-11-17
Abstract: 1383652 Anthraquinone disulphonic acids IMPERIAL CHEMICAL INDUSTRIES Ltd 16 Feb 1973 [17 Nov 1971] 53297/71 Heading C2C  Anthraquinone-1,5- and , -1,8-disulphonic acids are obtained by heating one molar proportion of anthracene with at least 2 molar proportions of a sulphonating agent comprising oleum, H 2 SO 4  or ClSO 3 H in the presence of a solvent comprising an aliphatic carboxylic acid or anhydride or an organic base to form anthracene-1,5- and -1,8-disulphonic acids, diluting the mixture with water, and treating the resultant liquor with an oxidizing agent to effect oxidation to the anthraquinone disulphonic acids. Specified oxidizing agents are HNO 3 , HOCL, HClO 3  and HClO 4 , and their salts, and chromates, dichromates, permanganates and peroxides. Specified organic bases are aromatic heterocyclic tertiary bases, e.g. pyridine and picoline. Examples are given which illustrate the process.
Patent GB-1269687-A (GB)
Title: A rectifier/inverter circuit with means for protecting a static inverter against excess voltages in a ripple control installations
IPC: H02M1/32
Filed: 1969-10-31
Abstract: 1,269,687. Signalling over power circuits. ZELLWEGER Ltd. 31 Oct., 1969 [23 Dec., 1968]. No. 53443/69. Heading H4R. [Also in Division H2]  An inverter 12 in a ripple control installation, is connected to a power supply 1 through fuses 19 ... 21, a contactor 28, a rectifier 4 and a "Keying" switch 8, and supplies control frequency energy through a coupling circuit 14 to a distribution network 2. An arrester 6, e.g. of the gas discharge type, is connected across the output terminals of the rectifier and a diode 10 is connected across the switch 8 with a polarity opposed to that of the rectifier. Should an overvoltage condition arise at the output terminals of the rectifier 4, the arrester 6 conducts and the increased current through the rectifier 4 causes one or more of the fuses 19 ... 21 to blow. This interrupts the supply to the coil 40 of a contactor 37 so that its contacts 36 open to de-energize the coil 32 of the contactor 28, or directly interrupts the supply to the coil 32. The contactor 28 opens its contacts 25 ... 27 to remove the supply from the rectifier and opens contacts 44 to cause the opening of a contactor 13 to disconnect the inverter from the network 2. Should the inverter be subjected to an overvoltage condition when the switch 8 is open, then current can flow through the diode 10 to cause the arrester 6 to conduct so to effect the switching off of the rectifier and inverter. In a modified arrangement the contactor 13 has contacts connected to short circuit the coupling transformers 83 ... 85 when this contactor releases.
Patent GB-1470069-A (GB)
Title: Multifeed circular knitting machine
IPC: D04B15/32
Filed: 1974-12-13
Abstract: 1470069 Knitting machines WIRKMASCHINENBAU KARL-MARX-STADT VEB 13 Dec 1974 [20 Dec 1973] 53939/74 Heading D1C Patterning cam elements 12 for each feed of a circular knitting machine are carried by a bar 4 detachably mounted between supporting rings 1 and 3, the bar having a projecting pin 7 receivable in an open bearing 5 on ring 3 and being securable to ring 1 by a screw 10. The pin 7 has flats to allow entry into the bearing and is then locked in place by an arm 9 which rotates the pin within the bar. The cam elements 12 have grooves which engage the bar.
Patent GB-1263755-A (GB)
Title: Improvements in or relating to stowages for emergency equipment
Inventor: OLDHAM WALTER
IPC: B65D85/00
Filed: 1969-11-05
Abstract: 1,263,755. Containers for emergency equipment. FRANKENSTEIN GROUP Ltd. 11 Feb., 1970 [19 Feb., 1969; 5 Nov., 1969], Nos. 8998/69 and 54154/69. Heading B8P. A container for emergency equipment comprises two members 5 pressed from P.V.C. and joined together and having opening means such that it will be evident when the container has been opened. The parts 5 are hinged together by a strip of rubberized fabric 20 or by a grooved web extending between the two parts and a self-adhesive tape 21 secures together flanges 6 around the periphery of the two parts, a pull tab 22 being provided at one end of the tape. A break thread or threads may be looped through holes in adjacent flanges 6. The container is stiffened by ribs 8, 19.
Patent GB-1449270-A (GB)
Title: Hydraulic or compress-air-operated diaphragm type actuator  capsule
IPC: F15B15/10
Filed: 1973-11-22
Abstract: 1449270 Pneumatic dampers W BECK 22 Nov 1973 [24 Nov 1972] 54218/73 Heading F2S [Also in Division Fl] In a fluid operated actuator, Fig. 1, air escapes from a chamber 6, as a diaphragm 7 rises, through holes 21 controlled by a non- return valve 22 and so the diaphragm descends its movement is retarded by a porous plug 26, through which air enters the chamber 6. The throttling effect of the plug 26 may be adjustable as shown in Fig. 2, by sliding the plug up or down in a stepped bore provided with supporting fins 29.
Patent GB-1194119-A (GB)
Title: Improvements in and relating to Power-Assisted Steering Gears, particularly for Motor Vehicles
IPC: B62D5/06
Filed: 1968-11-18
Abstract: 1,194,119. Power-assisted steering. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. 18 Nov., 1968 [2 Dec., 1967], No. 54671/68. Heading B7H. To cut off hydraulic power-assistance at a desired position of a power piston 1 in a steering gear comprising a recirculating ball nut or steering nut constructed as a power piston 1 and co-operating with a steering worm 6 a valve 4 is provided in the power piston which valve, when the desired power piston end position is reached, is actuated by a pin 14<SP>1</SP> or 13 disposed respectively in the end of the worm 6 or the base of a steering gear housing Z to establish a connection between a cylinder chamber on one side of the piston 1 under hydraulic pressure and a cylinder chamber on the other side which is connected to a pressurerelieved return flow. On rotation of the worm 6 a valve 19 selectively connects the two cylinder chambers to the hydraulic pressure source and return flow. Rings 21, 22 may be disposed in the ends of the power cylinder to limit deflection of the steering sector 8.
Patent GB-1330962-A (GB)
Title: Apparatus for coding digital information
IPC: G11B20/14
Filed: 1971-11-25
Abstract: 1330962 Digital transmission; coding &c GENERAL MOTORS CORP 25 Nov 1971 [1 Dec 1970] 54734/71 Heading H4P [Also in Division G4] Serial NRZ binary data is converted to a signal in which a transition at the beginning of a bit cell of the input data represents the presence in the data of a first pair of bits, and a transition between the boundaries of a bit cell represents the presence of a second pair which is inverse to the first pair. The first pair of bits may for example be 01 or 11. As described, the NRZ data, e.g. that shown in Fig. 2, is fed to a shift register (12, Fig. 1, not shown) stepped at bit rate. In order to detect bit pairs 00 and 11 the true outputs of the last two stages of the register are fed to a first AND gate (26) and the complement outputs to a second AND gate (28). The first gate is enabled by bit rate clock pulses A# occurring at the end of each bit cell, and the second gate by clock pulses B# occurring at the centre of each bit cell. When a bit pair 00 or 11 is detected one or other gate delivers a pulse EDT at the appropriate time in the bit cell to cause an output bi-stable (F/F 9) to change state. The pulse is also to a circuit comprising two serially connected bi-stables (F/F 10, F/F 11) which generates an inhibit signal INH to inhibit the AND gates for one bit cell period to prevent the comparison of the bit following a bit pair with the last bit of the pair. The output of the output bi-stable (F/F 9) is the required signal. The signal may be used to record data on a magnetic medium or in a transmission system, the signal requiring less bandwidth than does the NRZ data which it represents.
Patent GB-1204863-A (GB)
Title: Dimerization process
IPC: C07C11/02
Filed: 1967-12-04
Abstract: 1,204,863. Dimers and co-dimers. PHILLIPS PETROLEUM CO. 4 Dec., 1967 [5 Dec., 1966; 9 Oct., 1967], No. 54977/67. Heading C5E. Olefin dimers or codimers are made by contacting a cyclic monolefin having up to 12 C per mol. or an acyclic olefin having 2 to 12 C atoms and no branching nearer the double bond than the 3-position or a mixture of two such olefins with a catalyst composition formed on mixing (1) a nickel complex of formula (R 3 P) 2 NiY 2 , (R 3 PO) 2 NiX 2 , (R 3 AsO) 2 NiX 2 , or a complex of NiX 2  with where R represents a C 1-20  hydrocarbon radical, Y is a halogen or a radical as defined for R, X is halogen, n is 0 or 1 to 4, R<SP>11</SP> is hydrogen, CH 3  or C 2 H 5  and (2) an aluminium compound of formula R x AlX y , where R and X are as defined above and x and y are integers such that x+y=3, R and X in components (1) and (2) being the same or different. Specified monolefins are ethylene, propylene, butenes-1 and -2, pentenes-1 -2 and cyclo-, cyclohexene, 3: 4: 5- trimethylcyclohexene, 3-methylbutene-1, cycloheptene, hexene-2, heptene-1, cyclo-octene, 4: 4-dimethylheptene-2, decene-1, dodecene-1 and mixtures thereof. Examples describe the dimerization of ethylene, propylene, butene-1, pentene-1 and pentene-2, and the co-dimerization of ethylene and propylene, propylene and pentene-1, and ethylene and cyclopentene (to 1- ethylcyclopentene).
Patent GB-1214133-A (GB)
Title: Improvements in or relating to radiation detectors
Inventor: COOMBES RONALD GEORGE
IPC: G01N21/37
Filed: 1966-12-08
Abstract: 1,214,133. Infrared capacitative detector. HILGER-I.R.D. Ltd. March 8, 1968 [Dec. 8, 1966], No.55084/66. Heading G1A. In a detector for an infrared analyser comprising a plurality of radiation receiving gas filled chambers 4, 6, Fig. 1, the dynamic pressure within which by means of a flexible metallic wall 20 generates with a fixed capacitor electrode 32 signals indicative of the modulation of radiation falling through front windows 18 on the respective cells, restricted flow passages 14, 16 are provided to a communicating chamber 8 to provide a pressure balance between the cells. The chamber 8 may be subdivided with a restricted air passage between the two portions. Gas is fed to the cells through an oriface 36 which includes a withdrawable top valve for opening and closing the various passages. A ring 24 with an annulus 30 engaging the flexible wall provides means for adjusting its tension. In an analysis arrangement using the detector, a rotating shutter passes infrared radiation to the detector cells through sample and reference cells either simultaneously or sequentially, and a signal produced in a combination amplifier is either, displayed or recorded. Sequential signals may be rectified in synchronism with the shutter rotation and their ratio obtained, or simultaneous signals may be subtracted. The detector may include more than two radiation-receiving cells for multiple detection, and they may be arranged to be exposed separately to the radiations or in line for radiation to pass through them in turn.
Patent GB-1183139-A (GB)
Title: Hay Making Machine
Inventor: SCHLITTLER JACQUES ROBY
IPC: A01D78/12
Filed: 1968-11-21
Abstract: 1,183,139. Haymaking machine. J. R. SCHLITTLER. 21 Nov., 1968 [21 Nov., 1967; 12 Dec., 1967], No. 55205/68. Heading A1F. A rotary rake head is provided with a screw drive comprising an internally threaded socket 16 non-rotatably connected to an arm 5 and held in a bearing 7, and an externally threaded rod 8 provided with a screw thread which cooperates with the internal thread in the part 16. Reciprocatory movement of the rod 8 imposed by its follower 9 engaging a cam track 10 causes the tines on arm 5 to pendulate. An alternative cam track 13, normally blocked, is used when the direction of rotation of the head is changed. The screw drive may be constituted by a pin and slot arrangement. Instead of cam tracks, an eccentric 36, Fig. 8, can be used. The direction of rotation can be changed in which case the position of rod 16 is altered; one position using slot 39, the other using slot 40. A construction which is radially space-saving, Fig. 7 (not shown), consists in displacing part (16<111>) relative to fixedly located arms (5<1>) by a cam arrangement similar to that of follower 9 and track 10. The displacement of the rod 8 relative to the socket 16 may be affected by a toothed sun gear wheal (47), Fig. 13 (not shown), which is stationary during rotation of the arms about the perpendicular axis (35) and meshing with a planetary wheel (48). The resulting sinusoidal displacement may also be effected by an eccentric strap (15) and disc (50), Fig. 14 (not shown).
Patent GB-1360329-A (GB)
Title: Organosodium compound and its use in the preparation of benzofuran
IPC: C07D307/79
Filed: 1972-11-30
Abstract: 1360329 Organosodium compound ICI AUSTRALIA Ltd 30 Nov 1972 [2 Dec 1971] 55243/72 Headings C2C and C2J The compound is prepared by reacting 2,3 - dihydro - 2,2- dimethylbenzofuran with an organo-sodium compound, especially an alkyl- or cycloalkylsodium, in an inert atmosphere suitably at -30 to + 1500 C. and optionally in a hydrocarbon or ether solvent. The organo-sodium may be prepared in situ from sodium and an alkyl or cycloalkyl halide. The above compound may be used in the preparation of carbofuran of formula by reaction with oxygen or air, acidification of the reaction product to form the 7-hydroxy compound and reaction of this with methyl isocyanate to produce the desired, N-methylcarbamate derivative.
Patent GB-1173759-A (GB)
Title: Antistatic Coating of Thermoplastic Films
Inventor: REMMINGTON TIMOTHY ALAN
IPC: C08J7/044
Filed: 1966-12-09
Abstract: 1,173,759. Coated films. IMPERIAL CHEMICAL INDUSTRIES Ltd. 17 Nov., 1967 [9 Dec., 1966], No. 55304/66. Heading B2E. [Also in Division B5] A film of an organic thermoplastic material having an antistatic coating is produced by treating the uncoated film to a chemical or physical treatment resulting in oxidation of the film surface to improve the bonding properties of its surface, coating with a solution comprising a water soluble cellulose derivative, a water soluble thermosetting resin and an acid catalyst, evaporating off the solvent and heating the coated film so that under the influence of the catalyst it is cured; the coating becoming adhesively bonded to the thermoplastic film. The film may be of an orientable thermoplastic material which is stretched to orient it before or after application of the coating. Examples of thermoplastic polymeric materials, water soluble cellulose derivatives and thermosetting resins are given. The thermoplastic film may be treated with chromic acid in sulphuric acid or with hot nitric acid; exposure of the surface to ozone e.g. while at a temperature above 100 Centigrade; exposure of the surface to high voltage electric stress accompanied by corona discharge; exposure of the surface to ionizing radiation such as ultra violet, x, alpha, beta, or gamma radiation particularly of temperatures above 100 Centigrade; or exposure of the surface to a flame. The coating may contain antistatic agents, release agents, pigments, fillers, dyes, and ultraviolet light stabilizers. The uncoated surface of the film may be coated with adhesive to produce an adhesive tape. The coated film may be overcoated with a heat sealable coating. The coating may have a surface resistivity of less than 10<SP>9</SP> oms: per sq. and a coat adhesion to the base film of at least 250 grams per inch.