baber/WOPTO huggingface dataset:
Patent GB-1443309-A (GB)
Title: Differential
IPC: F16H48/42
Filed: 1974-12-23
Abstract: 1443309 Differential gear CLARK EQUIPMENT CO 23 Dec 1974 [26 Dec 1973] 55434/74 Heading F2D In a bevel differential gear on a motorvehicle having slip-limiting friction disc clutches 52L, 52R between one or both side gears 44L, 44R and the input housing 28, the clutches are maintained disengaged at normal loads by diaphragm springs 74, or hydraulic preload, acting to thrust the side gears against surfaces 42 on the spider 32, the spring being overcome at a predetermined load by bevel gear tooth thrust which then engages one or other clutch to restrict differentiation.
Patent GB-1171288-A (GB)
Title: Improvements in Vacuum Cleaners
IPC: A47L9/12
Filed: 1966-12-15
Abstract: 1,171,288. Suction cleaners. ETUD. 15 Dec., 1966 [15 Dec., 1965], No. 56153/66. Heading A4F. A suction cleaner comprises a housing 1 containing a motor-fan unit 2 which draws dust laden air through a suction inlet 7c into a dust recepticle 7 in the form of a drawer removable from the housing and having a hinged lid constituted by a framed filter 9, 10 through which air is drawn by the fan. The housing 1 is mounted on wheels 3 and is moved over a surface to be cleaned by a handle 5. A flap valve 8 is provided in the suction inlet 7c.
Patent GB-1119944-A (GB)
Title: Improvements in or relating to agricultural pick-up vehicles
IPC: B60P1/36
Filed: 1965-07-29
Abstract: 1,119,944. Agricultural bale pick-up vehicle. TEXAS INDUSTRIES Inc. 29 July, 1965 [5 Aug., 1964; 6 May, 1965], No. 56511/67. Divided out of 1,119,943. Heading B8E. The subject matter is the same as in the parent Specification and the claims are directed to the offset mounting of the pick up mechanism.
Patent GB-1247528-A (GB)
Title: Preparation of paper products
IPC: D21H19/22
Filed: 1968-11-28
Abstract: 1,247,528. Paper. MONSANTO CO. 28 Nov., 1968 [29 Oct., 1967; 21 Oct., 1968], No. 56558/68. Heading D2B. [Also in Division B2] A cellulose-containing paper is prepared from an aqueous pulp free from groundwood and unbleached fibres and free from rosin size, and is coated with a composition comprising a starch product. and a water-soluble salt of a copolymer of a monovinylidene aromatic hydrocarbon and a maleic monomer which is maleic acid, maleic anhydride or a half ester of maleic acid, the paper having an extract pH (according to TAPPI T-435m-52) of at least 4.5. The hydrocarbon may be styrene or an aryl-substituted alkyl styrene. The water-soluble salt of the copolymer may be the sodium or ammonium salt. The pulp slury from which the paper is formed may also include a ureaformaldehyde resin, a melamine-formaldehyde resin,- or a polyalkyleneimine. The starch product may be unmodified starch, enzymeconverted starch, hydroxyethylated starch, oxidised starch, or a cationic starch. The pulp may also contain inorganic pigments, e.g. CaCo 3 , clay, TiO 2 , and also synthetic fibres, e.g. polyacrylonitrile, polyamide, polyester or regenerated cellulose fibres.
Patent GB-1118530-A (GB)
Title: Spring door-closing appliances
Inventor: SHEAD HERBERT CHARLES
IPC: E05F3/00
Filed: 1966-12-20
Abstract: 1,118,530. Spring door-closing appliances with covered ends. WILLIAM NEWMAN & SONS Ltd. 15 June, 1967 [20 Dec., 1966], No. 56851/66. Heading E2M. The invention relates to spring door-closing appliances comprising an elongated hollow body 1 containing a reciprocating check piston and a spring 2. the piston being operatively coupled to a vertical operating spindle 3 which is connected to the fixed door frame via two jointed together control arms (one shown by 4), the hollow body having one end closed by a removable plug 7, and flanges or lugs 5, 5 being provided at opposite ends of the body to enable the latter to be secured to the door by means of screws; and is characterized in that removable cover members 11/12 and 11/12 (e.g. of polypropylene) are applied to the ends of the hollow body to conceal the screw holes 6 and also to cover the end faces of the body, said cover members having projections which are resiliently sprung into recesses in the said body, whereby a neat and clean-cut appearance is obtained.
Patent GB-1437490-A (GB)
Title: Vessel having an explosion relief diaphragm or panel
IPC: B65D90/36
Filed: 1973-12-08
Abstract: 1437490 Vessel with explosion relief diaphragm SIMON-CARVES Ltd 11 Nov 1974 [8 Dec 1973] 56994/73 Heading A5A A vessel having an explosion relief diaphragm which forms part of the wall 10 of the vessel and is adapted to give way in event of excessive pressure within the vessel comprises a rectangular sheet 13 of stainless steel covering an aperture 11 in the wall 10 the sheet being bolted to a flanged frame 12 and a second frame 14 with gaskets 15 and 16 therebetween and having a plurality of tongue-like portions 20 at spaced intervals along the perimeter and means are provided to sense the presence of these members 20 and to indicate displacement thereof. The means can be a magnetic reed switch 21 and magnet 22 which is actuated when a ferrous sleeve 24 on the member 20 is moved. Alternatively the means can be a proximity sensing transducer or a light source/photo cell arrangement. A slab of insulating material 18, retained by lid 19, is provided on the outer side of sheet 13.
Patent GB-1337170-A (GB)
Title: Filters and their methods of manufacture
IPC: B01D29/11
Filed: 1971-12-10
Abstract: 1337170 Making tubular filters; coiling PITTSFIELD PRODUCTS Inc 10 Dec 1971 [10 Dec 1970] 57419/71 Headings B3A and B3E [Also in Division B1] A metallic tubular reinforced screen filter is made by feeding strips of screen 42 and overlying reinforcement 44 on to mandrel 26 in a helical winding and welding, by means of current passed from wheel 50 to mandrel 26, the overlapping edge portions 53.
Patent GB-1334233-A (GB)
Title: Selective separation by a chromatographic process
IPC: B01D15/08
Filed: 1970-12-04
Abstract: 1334233 Separating xylenes MOBIL OIL CORP 4 Dec 1970 [5 Dec 1969] 57727/70 Heading B1L A zeolite 0.9 Œ 0.2 M 2# O:W 2 O 3 :5-100YO 2 :   zH 2 O where m is a cation of valency n, W is aluminium or gallium, Y is silicon or germanium and z is 0-40 is used to separate paraxylene from its isomers. Examples are given of the preparation of zeolites ZSM-5 and ZSM-8 useful in the process.
Patent GB-580712-A (GB)
Abstract: 580,712. Pipe connectors. SUPER OIL SEALS & GASKETS, Ltd, and JORDAN, E. C. Sept. 18, 1944, No. 17801. [Class 99 (i)] In a pipe fitting of the kind in which a spigot or socket member a is secured to one end of a pipe, the spigot member is formed with a part b of spherical shape so that a bore c may be formed therein at any desired inclination to receive a separately formed neck d to which a nut e is rotatably secured. Specification 136,625, [Class 99 (i)], is referred to.
Patent GB-1217510-A (GB)
Title: Improvements in or relating to means for sampling bulk materials
Inventor: JORDISON FRED
IPC: G01N1/20
Filed: 1967-12-28
Abstract: 1,217,510. Sampling apparatus. BIRMING- HAM SMALL ARMS CO. Ltd. 17 Dec., 1968 [28 Dec., 1967], No. 58780/67. Heading B8N. Apparatus for sampling material e.g. coal as it falls in a stream 1 comprises a sample container 6 rigidly connected to the ends of pivoted arms 5, and a reversible motor unit 17 which via a transmission including a shaft 9 and chainwheels 8 imparts motion to chains 7 each connected at one end to the container. The other ends of the chains pass around chain-wheels 11 and are connected to the framework of the apparatus. A counterweight 15 is provided. During arcuate movement of the container the chains pass over fixed guide angles 18. After sample collecting movement, i.e. downward and upward arcuate movement of the container, the container returns to the position shown and a pivoted door 20 is opened by engagement between an adjustable stop 23 and a latching mechanism 21, 22 to release the sample into a shoot 19. Upon commencing the next sample collecting operation the door is closed by an anti-friction roller 26 mounted on a spring urged plunger 25, the roller and plunger being mounted on a member 24 which is pivotable upwardly only from its illustrated position.
Patent GB-1416727-A (GB)
Title: Magnetic induction apparatus
IPC: G11B5/86
Filed: 1972-12-20
Abstract: 1416727 Recording and playback; cleaning; copying magnetic sheets RICOH KK 20 Dec 1972 [27 Dec 1971 24 July 1972] 58785/72 Heading G5R Magnetic induction apparatus, e.g. copying apparatus, for inducing a magnetic pattern on a magnetizable sheet S1 includes a sheetcleaning section C prior to an induction or transfer section T and comprising a pair of rotating brush rollers 22, 23 between which the sheets are guided by upper and lower sets of cords 24, 25. Suction is applied to the interior of the rollers 22, 23 to remove dust, e.g. from a previous printing operation. One end of the cords of each set is secured to a rod (26, 27), Fig. 2 (not shown, which is rotated to tension the cords. Sheets are fed to the cleaning section from a stack S by a suction device 8 and rollers 9, 10. Transfer section T.-Copying is effected by pressing each sheet S1, which sheets are rectangular with spiral record tracks, Fig. 21 (not shown), and have paper or plastics base layers, against a master sheet S0 and applying a transfer field through electromagnets 125a, 125b which are moved, e.g. rotated, thereover. The sheets S1 are fed on to a table 37 on which is located the master sheet S0, by rollers 35, 36; 102, 103. When the sheet leading edge engages a stop 104a, rollers 102, 103 are separated, and rebound of the sheet is prevented by a roller 115 which is rotatable in only one direction. The sheet is then located laterally by a member 86 which is released to press the sheet against a row of guides 78-81. A pressure plate 40 is then lowered on guides 38, 39 by means of bars 49, 50 which pull downwardly on a rod 55 which is secured to the plate 46 at 53, and at 54 to the mounting 40, 41 of the plate 46 on the guides 38, 39. Lowering of the plate 46 causes an arm 133 thereon to actuate a switch SW to energize the electromagnets 125a, 125b which are rotated continuously through gears 128, 129; and also causes members 134-136 thereon to actuate punches 137-139 which punch three locating holes (154-156), Fig. 21 (not shown) in each sheet. After copying the stop 104a is retracted, the plate 46 lifted, and the rollers 102, 103 re-engaged to eject the sheet to a tray 157. Correct sequential movement of the above members is achieved by a cam system 16.  The pressure plate 46 is also pivotally connected at 44, 45 to its mounting 40, 41. The rod 55, which has two sections pivotally connected at 56, can be slid in to a position in which it is released from the bars 49, 50 and its pivot axis coincides with the plate pivot axis 44, 45. The plate 46 can then be pivoted upwardly, e.g. for inspection.
Patent GB-1214850-A (GB)
Title: Process and apparatus for analysis of non metallic volatile materials
Inventor: KOFSTAD PER
IPC: G01N33/20
Filed: 1967-12-28
Abstract: 1,214,850. Determination of volatile impurities. SENTRALINSTITUTT FOR INDUSTRIELL FORSKNING. 28 Dec., 1967 [30 Dec., 1966], No. 58912/67. Heading B1X. A process for determining the non-metallic volatiles content of a sample comprises heating the sample 1 under such conditions as to volatilise the volatiles and to generate a gaseous or vapour material, condensing the material in cooled arm 10 of a U tube, arm 10 being sealed at one end, closing the other end of arm 10 by raising the liquid level in tube 18 above the base of the U, evaporating the material in arm 10 and measuring its pressure and volume manometrically. The volatiles may themselves be condensable or may react with another material, for example oxygen obtained by heating copper oxide 5 to 550‹ to 750‹C. When reservoir 13 contains mercury, a constant volume space above the mercury column in arm 10 may be obtained automatically by controlling the supply of air to reservoir 13 in response to a signal obtained when the mercury reaches a contact 19. There are references to determining volatiles in samples of metals, alloys, metal oxides or sulphides, coated welding electrodes, wood, cellulose, food, textiles, and especially to determination of hydrogen in A1, Cu, Fe, Ni, and also to determination of carbon dioxide and water as impurities in noble gases.
Patent GB-1408950-A (GB)
Title: Rollers
IPC: E06B9/44
Filed: 1972-12-22
Abstract: 1408950 Roller blinds M H STARK 22 Dec 1972 59363/72 Heading A4B A window blind roller assembly comprises a tubular roller 12, an end plug 14 with a cylindrical portion 22 fitted into an end of the roller 12 by a firm frictional engagement between the inner surface of the roller 12 and continuous or discontinuous helical threads 24 on the cylindrical portion 22, the plug 14 including a flange 16 with a diameter intermediate the inside and outside diameters of the roller 12, and a pin 28 for rotatably supporting the roller, the pin being firmly fitted in a bore in the flange 16 and extending from the opposite side of the flange 16 from the cylindrical portion 22. The plug includes a generally elliptical part with opposed flats 20 for engagement by a tool to fit the plug in the roller. The roller 12 may be formed at least at their ends from laminated paper. A standard cutting machine may be used to trim the roller to substantially the correct length.
Patent GB-1366152-A (GB)
Title: Optical reader for punched cards
IPC: G06K13/10
Filed: 1971-07-19
Abstract: 1366152 Optical reader DECISION DATA COMPUTER CORP 19 July 1971 [17 May 1971 59797/73 Heading G4M [Also in Division G1] A perforated document reader has rollers 50 driving the document 46 along a feed path, a row of photo-transistors in housing 41 across the document on one side of the path, a frame 40 carrying a bulb 43 and holder 42 and removable reflector 44. The reflector is held at one side by a clip 48b and on the other side by a spring clip 48a engaging a peg 49. The reflector has a parabolic reflecting surface.
Patent GB-1334193-A (GB)
Title: Processes for the polymerisation of ethylenically unsaturated  monomers in suspension
IPC: C08F255/00
Filed: 1971-12-31
Abstract: 1334193 Suspension polymerization, novel stabilizers therefor AQUITAINE TOTAL ORGANICO 31 Dec 1971 [31 Dec 1970] 60948/71 Heading C3P A process for suspension polymerizing one or more ethylenic monomers, comprises polymerizing the monomer or monomers in aqueous suspension in the presence of a suspending agent which is an inorganic precipitate obtained by co-precipitating a soluble phosphate using a mixture of soluble salts of at least two metals from Groups IIa and IIb of the Periodic Table (i.e. Be, Mg, Ca, Sr, Ba, Ra, Zn, Cd and Hg), and aluminium and iron. In the co-precipitation there are preferably at least 10 metal ions to 6 phosphate ions. The phosphate is preferably an alkali metal phosphate. Preferred metal salts are the nitrates, halides or acetates. A mixture of Ca and Mg salts is preferably used, the ratio of gram ions of Ca to Mg being between 1 : 10 and 10 : 1. A preferred embodiment is where a soluble carbonate is also coprecipitated, there being preferably 1 gm ion CO 3 <SP>-</SP> to 6 gm ions of phosphate. The precipitate may be prepared in the reaction mixture before polymerization begins, or during polymerization, but before 60% conversion has occurred. The polymerization may be begun in bulk, until between 5 and 40% conversion, and then completed in suspension according to the invention. The polymerization of styrene, styrene and methyl methacrylate, styrene and acrylonitrile, styrene in the presence of polybutadiene, and vinyl chloride, is exemplified using Na 3 PO 4  (with or without Na 2 CO 3 ) as the phosphate, and CaCl 2  and MgCl 2  as the metal salts.
Patent GB-1221599-A (GB)
Title: Apparatus for cutting and cropping moving strip
IPC: B23D33/00
Filed: 1968-12-23
Abstract: 1,221,599. Flying shears; roller tables. SIEMAG SIEGENER MASCHINENBAU G.m.b.H. 23 Dec., 1968 [22 Dec., 1967], No. 61111/68. Headings B3M and B3W.  An apparatus for cutting and cropping rolled strip 2 comprises shears 1, a run out roller table 5 at a distance from the shears so that cropped pieces 7 can drop between them to a scrap bin 8 and a subsidiary roller table 9 disposed between the shears and the run-out table and movable between two positions. In the first position, Fig. 1 (not shown), the table 9 is adjacent the roller table 5 and cropped pieces fall between table 9 and the shears 1 at low strip speeds (up to 5 m/sec.). In the second position, Fig. 2, the table 9 has been moved by a pneumatically actuated cylinder 12 towards the shears 1 so that cropped pieces 7 pass over the table 9 and drop between it and the roller table 5 at high strip speeds. A pneumatic cylinder 15 enables the end of the table 9 remote from the shears to be lowered to avoid being hit by the cropped pieces 7. The rollers 10 of the subsidiary roller table are driven by a common motor as are the rollers of a run-in roller table 3 and the roller table 5.
Patent GB-1286688-A (GB)
Title: New 4-phenylazo-1-naphthol compounds and their use as cyan couplers for silver halide photographic emulsions
IPC: G03C7/333
Filed: 1969-12-22
Abstract: 1286688 Photographic coloured hydroxynaphthamide colour couplers KONISHIROKU PHOTO INDUSTRY CO Ltd 22 Dec 1969 [20 Dec 1968] 62479/69 Heading G2C [Also in Divisions C2 and C4] A light-sensitive silver halide emulsion contains, as coloured cyan coupler, a compound of the formula I:- where x is 0, 1, 2, 3 or 4, y is 0 or 1, R 1  is phenyl, C 4-15  alkyl or alkenyl, alkyl-substituted phenyl or phenoxyphenyl, alkylsuccinimido or alkoxycarbonylalkoxycarbonyl, and R 2  is optionally substituted aryl or aralkyl. The emulsion may also contain a colourless cyan coupler such as 1 -hydroxy-N-[delta-(2,4-di(tertiaryamyl)phenoxy)- butyl-2-naphthamide. A light-sensitive photographic element comprises a support carrying a layer of such an emulsion. Reference has been directed by the Comptroller to Specification 1211651.
Patent GB-676909-A (GB)
Abstract: 676,909. Electric heaters for brooders. FISHER, H. Feb. 27, 1951 [March 4, 1950], No. 5521/50. Class 39(iii) An electric heater for brooders comprises a tubular stem 3 apertured at 7 for cooling, a hook or loop 10 at one end and a heating element 5, e.g. a lamp, with a reflector 6 at the other, an adjustable thermostat arranged above the reflector 6 and a pilot lamp 9 located on the stem 3. The element 5 and reflector 6 are detachably secured to an adaptor 4 on the stem 3, and the thermostat, which comprises a bimetallic disc 15 actuating a microswitch 13, is pivotally secured to a bracket 12 on the stem 3 up which pass the leads 11.
Patent GB-2000669-A (GB)
Title: Improvements in or relating to electrode joints
IPC: H05B7/14
Filed: 1978-06-06
Abstract: An electrode joint in which two electrodes are joined by a threaded (12) nipple received in threaded frusto-conical sockets formed in respective end portions of the two electrodes; and in which one or each socket and/or the nipple portion received therein is provided with a friable thread segment (16) formed by thickening the non-loading long flank of the threaded segment and reducing the thickness of the load bearing short flank of the thread segment so that the thread segment spaces the remaining threads of the parts concerned uniformly during assembly and can fracture under heat stress into the relief space provided between the reduced short flank and the cooperating thread of the other portion. <IMAGE>
Patent GB-2002725-A (GB)
Title: Burning minestone
IPC: E01C7/08
Filed: 1978-08-16
Abstract: A method is provided which permits synthetic aggregate and other useful mineral products to be produced from minestone, by burning the minestone in a disperse phase combustor at a temperature at which the ash forms a slag, removing the slag and, optionally treating it in analogous manner to blast furnace slag.
Patent GB-2001315-A (GB)
Title: Process for separating methacrylic acid from an esterification mixture
IPC: C07C57/07
Filed: 1978-07-19
Abstract: Methacrylic acid is separated and recovered from a mixture of esterification products comprising water, methanol, methacrylic acid and methyl methacrylate by subjecting the mixture to distillation to withdraw essentially all of the methacrylic acid from the bottom and to distil off essentially all of the water, methanol and methyl methacrylate from the overhead.
Patent GB-2002519-A (GB)
Title: Pressure transducers
IPC: G01L9/00
Filed: 1978-08-07
Abstract: A pressure transducer comprises two similar resonantly vibratable cylinders, one disposed coaxially inside the other and each having its own resonant vibration excitation system. A pressure P1 is applied to the inside of the inner cylinder and to the outside of the outer cylinder, while a pressure P2 is applied between the cylinders, whereby the difference in the respective vibration frequencies of the cylinders is dependent on the pressure difference P1-P2. Either P1 or P2 can be a reference pressure, e.g. a vacuum for an absolute pressure version of the transducer. Alternatively, either P1 or P2 can be atmospheric pressure. <IMAGE>
Patent GB-2029186-A (GB)
Title: Propagating roses
IPC: A01G7/00
Filed: 1978-09-07
Abstract: In a method of propagating roses, pieces of rose stems are caused to root and shoot by placing them between layers of arrhenatherum avenaceum located in a trench which is then filled in with soil heaped to a level above the surrounding ground.
Patent GB-2011243-A (GB)
Title: Insoles
IPC: A43B17/14
Filed: 1978-09-18
Abstract: An insole of closed cell cross- linked polyolefin foam of monolithic structure which comprises zones of varying elasticity which merge into one another. The insole has lower elasticity in areas of high orthopaedic load, and the elasticity is a function of the density of the insole which varies as indicated numerically in the drawing. The insole is formed by heating a smooth sheet of a closed cell cross-linked polyolefin foam until plastic and the forming is a shaped mould. <IMAGE>
Patent GB-2010283-A (GB)
Title: Sulfobetaine-modified olefinic copolymers
IPC: C08L23/00
Filed: 1978-11-08
Abstract: An antistatic agent for polymers comprises, a sulfobetaine group- containing olefin copolymer. The copolymer has a number average molecular weight of from 500 to 100,000 and comprises a major proportion of C2-6  alpha  olefin units and a minor proportion of units derived from a suitable comonomer. A sulfobetaine group is chemically bound to the units derived from the comonomer, for example by reaction of amine groups with a sultone.
Patent GB-2016443-A (GB)
Title: Producing optical fibre
IPC: C03B37/023
Filed: 1979-03-07
Abstract: A double crucible for producing a graded index optical fibre having a core and a cladding comprises inner and outer body portions 2 and 3 and a heated exit flow tube 4 which is elongate to allow thermal diffusion between the core and cladding to be prolonged. <IMAGE>
Patent GB-2019568-A (GB)
Title: Improvements in or relating to ultrasonic liquid level gauges
IPC: G01F23/296
Filed: 1979-03-02
Abstract: An ultrasonic liquid level gauge consisting of a surface which can be immersed in a liquid the level of which is to be determined, a transducer for exciting and detecting surface acoustic waves in the surface, a reflector consisting of at least one plane surface 5 positioned to reflect compression waves having a plane wavefront in the liquid arising from mode conversion of the surface acoustic waves in the liquid back to the surface at an angle such that they are re-converted into surface acoustic waves which are detected by the transducer, and means for measuring the time interval between the initial and returning surface acoustic waves. The transducer may be an electromagnetic acoustic transceiver comprising a flat rectangular coil whose plane is perpendicular to the surface and which is disposed between the poles of a magnet (Fig. 6, not shown). Types of reflectors include suitably angled planes (Fig. 2, not shown), a graticule (Fig. 4. not shown) and a floating corner reflector (Fig. 5, not shown). <IMAGE>