baber/WOPTO huggingface dataset:
Patent GB-791515-A (GB)
Title: Apparatus for filtering liquids
IPC: B01D29/00
Filed: 1954-09-20
Abstract: 791,515. Filters. WHITE FILTER SALES CO. Sept. 20, 1954 [July 7, 1954], No. 27127/54. Class 46. In apparatus for filtering liquids using a fibrous filter aid deposited on tubular gauze filter elements in a filtering chamber, the filter elements are closed at their bottom end and a header for filtrate is provided in the upper end of the filter chamber connected to the upper end of the filter elements. Dirty cleaning fluid is pumped into a mixing tank 10 at 52 and the requisite amount of paper is passed through a shredder 11 and mixed by an agitator 65. The slurry so formed is then passed by a pump 14 and valve 67 into a filter chamber 12 until the liquid level as seen through a sight glass 35 is above filtrate manifold 53, whereupon a pet cock 19, formerly open, is closed. Thereafter, liquid entering the chamber 12 passes through filter elements 21, (suspended from the manifold 53), into the manifold, through a sight glass 69 and through a valve 68 and pipe 71, to the tank 10 until the filtrate is seen to be clear. The valve 68 is then closed and the filtrate passed to a storage reservoir 13 until the tank 10 is empty. The cake of paper pulp and accumulated dirt is next removed by oscillation of cylinders 31 : these are coarsely perforated and located, each outside and spaced from one of the filter elements, the fibrous cake during formation building up in the intervening space between cylinder and element. The oscillation is effected by a handle 61 through linkage 67, the turbulence in the surrounding liquid created thereby serving to wash the cake off the elements 21. A valve 36 is now opened, permitting the cake and liquid to pass into an auxiliary filter basket 74. Liquid is then drawn by a pump 40 from the bottom of the chamber 12 through the auxiliary filter and back to the chamber until the liquid as seen through a sight glass 83 is clear. Valves 36 and 81 are then closed and a valve 82 on a discharge pipe 85, and a pet cock 73 on the auxiliary filter casing, are opened. After all liquid in the casing 72 has been pumped away, air is drawn through the pet-cock 73 to dry the cake in the basket 74.
Patent GB-645807-A (GB)
Title: Apparatus for indicating levels in the charge of a shaft furnace
IPC: G01F23/24
Filed: 1948-10-19
Abstract: 645,807. Charge level indicators. MEEHANITE METAL CO. (SOUTH AFRICA) (PROPRIETARY), Ltd., and JONES, H. H. Oct. 19, 1948, No. 27186. Convention date, Nov. 5, 1947. [Class 51(ii)] ] In a cupola 5 or other shaft furnace a pair of horizontally aligned electrodes 12 or pairs of electrodes arranged at vertically spaced intervals are provided in the walls 3 between the charging door 8 and the tap hole 10 and are insulated from the metal shell 17 by a refractory sheath 18, the or each pair of electrodes being connected in parallel with a source of electric current 15 and arranged in circuit with a lamp or lamps 14 disposed on a panel 16, said lamps glowing as each circuit is completed through the respective electrodes and the charge material. The eletrodes may be made of iron, e.g. an iron block inserted in the refractory wall 3 of refractory conducting material or of carbonaceous material and in the fusion zone they may be recessed into the wall or placed in a byepass which may be formed in a special refractory brick. Each electrode may also be provided with a water jacket. By substituting an ammeter for the lamps in a particular circuit measurements of specific resistivity across the electrodes determine the passage of a particular constituent of a mixed charge. Fig. 2 (not shown) shows an alternative arrangement in which there is a single vertical line of spaced electrodes, the lowest one being common to each circuit as one of a pair. Fig. 8 shows a modified hollow electrode 12 surrounded by a gas-tight box 22 with a hinged cover 23 and a transparent panel 24, thus forming either an inspection port or a poke hole.
Patent GB-1182136-A (GB)
Title: Apparatus for Trimming Metal Strips
IPC: B23K11/087
Filed: 1967-06-13
Abstract: 1,182,136. Shearing; making tubes. MANNESMANN-MEER A.G. 13 June, 1967 [12 Sept., 1966], No. 27300/67. Headings B3A and B3W. An apparatus for bevelling the edges of metal strip 5 comprises a pair of shearing stands 7, 7<SP>1</SP> each having shear blades 6, 6<SP>1</SP> and each mounted on a plate 8, 8<SP>1</SP> which is angularly adjustable to tilt the stands 7, 7<SP>1</SP>. The plates are pivoted on saddles 10, 10<SP>1</SP> movable transversally of the strip by a spindle 11 with oppositely handed threads 12, 12<SP>1</SP>. Each plate is raised by a lifting device comprising a worm gear 13, 13<SP>1</SP>, two crank-pins 14, 14<SP>1</SP> and two links 15, 15<SP>1</SP>. The bevelled strip may be bent into tubular shape and electrically welded.
Patent GB-251869-A (GB)
Title: Vaned wheel propeller for light naval craft
IPC: B63H1/04
Filed: 1925-11-02
Abstract: 251,869. Young, A. Nov. 2, 1925. No Patent granted (Sealing fee not paid). Paddle-wheels.-For supporting and propelling boats above water, the boat, which is preferably of stream-line form, is provided with a paddlewheel or wheels having a number of fixed pairs of cambered vanes which are mutually inclined and spaced radially. Protruding from the bolt 1, Fig. 2, is a driving shaft 3 on which are mounted wheels 2, each comprising two conical discs 4 on a disc 5. Near the periphery are cross-pins 7 around which is fitted a closure member 6, and internal ties 8 are also provided. Beyond the member 6 and between the cones 4 are arranged cambered vanes 9, 10, Fig. 4, inclined to form a larger space 11 at the forward edges. A single central wheel may be used in place of two side wheels.
Patent GB-225036-A (GB)
Title: Improvements in or relating to curling rods for use in permanent hair waving
IPC: A45D2/32
Filed: 1923-11-01
Abstract: 225,036. Brown, A. Nov. 1, 1923. Hair-curling appliances.-A curler for use in permanent hair waving has a central bore open at both ends, the front end of the curler being cut away at one side as at 10, Fig. 1, to form a lateral opening to receive a tress of hair 15, and means such as slits 11 are provided at the rear end of the curler for directly gripping the ends of a piece of string 12 or the like which passes round the tress 15 and extends through the curler. The curler may be a plain tube, but the preferred form comprises an inner tube 1, extending beyond both ends of a partly conical outer tube 2, and having a knurled end piece 3 secured to the rear end. One or more longitudinal slots 11 having enlarged mouth portions are cut in the end piece 3, and the front end of the tube 1 is cut away at one side. The rear end of the tube 2 has a groove 5 which engages a corresponding groove 6, Fig. 2, in the end piece 3 so that the outer tube 2 is free to rotate. A helical spring 9 secured to a collar 8 which is attached to the tube 1 makes contact with the inner surface of the tube 2 and forms a clutch allowing relative rotation of the tubes in one direction only for the purpose of tightening the hair on the curler.
Patent GB-1216805-A (GB)
Title: Improvements in or relating to push-button units for television receivers
IPC: H03J1/06
Filed: 1969-05-30
Abstract: 1,216,805. Multiple fastenings. BLAUPUNKT-WERKE G.m.b.H. 30 May, 1969 [30 May, 1968], No. 27513/69. Heading E2A. [Also in Divisions H1 and H3]  The specification describes releasable fastenings for a push button unit. When a button 11 is pushed in a stop strip 27 on a stop slide 26 engages a transverse groove 23 to hold the button in. To adjust the waveband each button has four different recesses 24 and adjusting notches 25, one on each side and an indicating mark 31 is provided corresponding to the position of the notches 25. By rotating the button to the required waveband and then pressing it the slot 24 and notch 25 cause a cam 28 to move the slide 26 laterally to operate a band change over switch 29, 30. Each button 11 may be pulled out to adjust via gearing 15, 16 a potentiometer 14. In a modification (Figs. 4 and 5, not shown), the button pressed is held by a spring biased stop plate (72) which engages a stop flange (70) at the end of the button.
Patent GB-945746-A (GB)
Title: Miniature semiconductor devices and methods of producing same
IPC: H01L21/033
Filed: 1960-02-02
Abstract: 945,746. Semi-conductor devices. TEXAS INSTRUMENTS Inc. Feb. 2, 1960 [Feb. 6, 1959; Feb. 12, 1959], No. 27542/63. Divided out of 945,734. Heading H1K. The subject matter of this Specification is substantially the same as that of Specification 945,734 but the claims relate to a device comprising a monocrystalline semi-conductor wafer containing three superposed regions forming a pair of PN junctions extending to one wafer face and there defining enclosed areas one within the other, and having discrete areas therein or thereon providing the electrical properties of two or more different kinds of circuit elements. Specifications 945,737, 945,738, 945,739, 945,740, 945,741, 945,742, 945,743, 945,744, 945,745, 945,747, 945,748 and 945,749 also are referred to.
Patent GB-410006-A (GB)
Title: Improvements in or relating to the manufacture of rubber bands, rings and the like
Filed: 1933-10-09
Abstract: 410,006. Producing rubber goods from aqueous dispersions. INTERNATIONAL LATEX PROCESSES, Ltd., 10, Lefebvre Street, St. Peter's Port, Guernsey.--(Assignees of Soc. Italiana Pirelli; 21, Via Fabio Filzi, Milan, Italy.) Oct. 9, 1933, No. 27750. Convention date, Oct. 13, 1932. [Classes 70 and 87 (ii).] A process for the manufacture of rubber bands, rings, strips, bathing or wearing belts, &c. from aqueous dispersions of rubber comprises separating a coagulated deposit of rubber produced direct from the dispersions into one or more of the bands, &c. by forming the coagulated deposit on a backing surface or former provided with protuberances having sharp edges. The dispersions may be of natural or artificial latex, concentrated or vulcanized, and may contain protective colloids, accelerators, fillers, &c. Preferably the backing surface consists of a mandrel, having a helicoidal sharp-edged protuberance, which may be dipped, heated to 70-95‹ C. if a heat-destabilized dispersion is being used, into a dispersion one or more times with intermediate dryings and a final drying and then, if necessary, a vulcanizing either before or after removing the deposit from the mandrel. As shown the protuberances 2 on the mandrel 1 are flanged by grooves 3 which give a thickened edge to the band produced ; the surface of the mandrel may be provided with engravings or designs to be reproduced on the band. The deposit shrinks on the mandrel and is sharply cut by the helicoidal edge ; if the bands are thick and the cutting incomplete it may be completed by pressing the mandrel against a hard surface. The ends of the mandrel are plain, so that the band does not become detached by spontaneous unrolling. There may be a plurality of helicoidal protuberances or a plurality of endless protuberances. The mandrel may be provided with a handle, and electrical heating devices, and may be hollow to allow the introduction of a heating fluid or the production of a low pressure therein ; it may be made of stainless steel, light alloys, hard wood, glass, porcelain, resins or ebonite. Specifications 233,458,284,608, 292,964, 330,520, and 335,621, [all in Class 70], are referred to.
Patent GB-1086156-A (GB)
Title: A separation process
IPC: C10G73/06
Filed: 1965-06-30
Abstract: 1,086,156. Crystallizing wax. ESSO RESEARCH & ENGINEERING CO. June 30, 1965 [July 1, 1964], No. 27760/65. Addition to 1,022,234. Heading B1G. Wax is crystallized from solution in a hydrocarbon fraction on cooling by passing the solution as a dispersion of essentially uniform size droplets countercurrently to a continuous phase aqueous coolant containing an additive comprising a polyglycol and/or a protein together with a surfactant. The polyglycol may be polyethylene glycol or polypropylene glycol having a molecular weight of 500-12,000. The protein may be gelatine or scleroprotein. The surfactant may be saponin or alkyl phenoxy poly(ethyleneoxy) ethanol. The additive may contain 50-70 parts of polyglycol, 20-30 parts of protein, and 8-20 parts of surfactant. 0.01-1.0% of additive based on additive plus coolant may be present. The hydrocarbon fraction may have a b.p. below 900F. The coolant may be water or an aqueous solution of sodium or calcium chloride. The droplets may have a particle size of 1/32-3/8 in. The system may be operated at a pressure of 15-1500 psig. According to the Fig. warm feed is introduced upwardly through an orifice plate 3 into a tower 2 and is passed countercurrently to a coolant and past a compression impeller to an outlet 24. The coolant is introduced into the tower through a ring of orifices 17, is removed through outlet 7, and is recycled after recooling.
Patent GB-1285138-A (GB)
Title: Line tracking system
IPC: G11C13/04
Filed: 1970-06-09
Abstract: 1285138 Generating triangular waveforms AMPEX CORP 9 June 1970 [15 Sept 1969] 27943/70 Heading H3T [Also in Division G1] A circuit provided with a variable level D.C input-48, Fig. 2D-and a square wave reference signal, Fig. 2C, produces a triangular wave output, Fig. 2E, whose amplitude is proportional to the D.C. input and whose polarity depends on the polarity of the D.C. input and of the reference voltage. When the input and reference voltages both have the same sign, the waveform is -ve, when they differ in sign, the waveform is +ve. The D.C. input is amplified, at 100 and 102 by an inverting amplifier 104, 106 the outputs being fed to a changeover switch 88 controlled at the bases by the reference signal. The output from the switch is accordingly a square wave whose amplitude is proportional to the D.C. input level. The reference signal is also inverted at 94 and summed with the output from switch 88 at a junction 92. The resulting signal is integrated by a feedback amplifier 96 to give a triangular wave.
Patent GB-1067463-A (GB)
Title: Preventive treatment for infectious viral equine respiratory disease
IPC: A61K39/145
Filed: 1964-07-07
Abstract: Equine influenza is prevented by inoculating the animal with a human influenza virus vaccine.  The vaccine may be composed of human influenza viruses of types A e.g. PR-8, type A prime e.g. AA/1/77, type B e.g. Great Lakes, and Asian.
Patent GB-1052035-A (GB)
IPC: A01D78/08
Filed: 1963-07-16
Abstract: 1,052,035. Haymaking machines. C. VAN DER LELY N.V. July 16, 1963 [Aug. 15, 1962], No. 28037/63. Heading A1F. A drum-tedder is provided with a single guide-member 19, for the displaced crop, extending obliquely rearwardly from one side of the machine, so that the crop is deposited on a strip of land narrower than the strip worked by the machine and is deflected thereonto in a direction away from the side of the machine to which the guide-member is connected. The tined drum 8 is partly surrounded by a hood 14 and is carried on lockable castors 5, the drum being driven from the towing tractor through a gear-box 12, and belt transmission 9, 10. The guide-member comprises a series of spring-steel rods 20-27 whose free ends terminate in a straight line extending obliquely upwardly in a longitudinal vertical plane. The guide-member is adjustable about a pivot pin 31 and may be swung over the hood into an inoperative position.
Patent GB-1461273-A (GB)
Title: Ferrous alloys
IPC: C22C33/02
Filed: 1973-06-13
Abstract: 1461273 Sintered ferrous alloys BRICO ENG Ltd 21 May 1974 [13 June 1973] 28045/73 Addition to 1339132 Heading C7A A sintered ferrous alloy has the composition It may be produced by mixing, pressing and sintering pre-alloys of 76 Fe 20 Cr 2 Si 1À5Ni 0À8Mn mixed with 6 Cu 1C and 0À75 solid lubricant at approx 1100C in a reducing atmosphere and annealing at 750C, followed by infiltration with Cu or Cu-based alloys. Variation of the Cr content of the pre-alloy between 18-22% produces varying Cr contents in the finished material, which may be used in valve seat inserts in I.C. engines.
Patent GB-217877-A (GB)
Title: Improvements in or relating to stuffing boxes and like joints
IPC: F16J15/24
Filed: 1923-11-07
Abstract: 217,877. Renault, L. June 23, 1923, [Convention date]. Packing, non-metallic. - Packing for a spindle, e.g. of a shock-absorber, applicable also for pipe joints comprises a leather or similar packing 3 of L-section which is compressed on to the spindle by cork, porous rubber, or other spongy material 14. The latter is compressed against a conical seating by means of a gland 6.
Patent GB-369550-A (GB)
Title: Improvements in or relating to fuses for high voltages
IPC: H01H85/047
Filed: 1930-09-19
Abstract: 369,550. Fusible cut-outs. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Sept. 19, 1930, No. 28051. Convention date, Oct. 8, 1929. Void [Published under Sect. 91 of the Acts]. [Class 38 (i).] To prevent a tube 2 carrying a fuse wire 1 in a vacuum or low pressure from exploding, it is surrounded by a second tube 3, the space between the walls of the two tubes being filled with tallow, sand, or the like. The fuse wire is connected to terminals by lead-in wires 6.
Patent GB-972259-A (GB)
Title: Automatic character-recognition method
IPC: G06V30/224
Filed: 1962-07-20
Abstract: 972, 259. Automatic character reading. STANDARD TELEPHONES & CABLES Ltd. July 20, 1962 [July. 27, 1961], No. 28066/62. Addition to 949, 355. Heading G4R. Striated characters as described in the parent Specification are identified by mask matching in a cathode ray tube being optically imaged on to the photo-cathode 4 and the emitted electrons are successively imaged on to reference masks 8, the electrons passing through the mask being picked up on a target to produce signals to identify the character. The electron image is focused by a coil 6 on to an area equal to one of the masks 8 and is scanned downwardly over all the masks by coils 9 fed with a sawtooth current. Coils 10 are used for beam adjustment. The targets 11, one behind each mask, receive electrons passing through the masks and one of the output circuits gives a maximum output. In another form there is a single target and a single evaluating circuit, The characters are designed so that the output of the target may have one of two frequencies. Two frequency selective amplifiers 13,14 are provided each connected to a group of five gates. The ten gates are opened in succession as the character image passes successiveiy over the masks 8. For this purpose a clock pulse generator 16 is started at the start of the vertical sweep and a counter 17 gives timing pulses distributed on the ten leads. In another form the electrons passing through the masks strike a fluorescent screen to produce a modulated light beam which is converted to an electric signal by a photo-multiplier.
Patent GB-1284360-A (GB)
Title: A method of manufacturing ferrite materials
IPC: C04B35/26
Filed: 1970-06-10
Abstract: 1284360 Ferrites INTERNATIONAL STANDARD ELECTRIC CORP 10 June 1970 [10 June 1969] 28098/70 Heading H1H A method of manufacturing ferrite material which includes the steps of grinding a mixture of oxide powders of the composition: 52 to 54 mol. per cent Fe 2 O 3 , 22 to 26 mol. per cent MnO 21 to 26 mol. per cent ZnO ; making cores from the ground powder, placing the cores in an oven and heating them up at between 50 and 150‹ C. per hour to 1300‹ to 1400‹ C., the atmosphere of the oven during heating up being initially either air at atmospheric pressure or oxygen at reduced pressure and the atmosphere being changed to oxygen at atmospheric pressure at between 800‹ and 1000‹ C.; maintaining the temperature of the oven constant at between 1300‹ and 1400‹ C. with the atmosphere of oxygen at atmospheric pressure for a period of 50 to 100 hours and then changing the atmosphere to a mixture of nitrogen and 0.1 to 2% of oxygen for 1 to 10 hours, and then changing the atmosphere to nitrogen at atmospheric pressure and cooling down the cores at a rate of 85‹ to 200‹ C. per hour. The oxide powders contain less than 0.03% of silica impurity.
Patent GB-1508934-A (GB)
Title: Preparation of di-and hydroxyesters
IPC: C07C27/12
Filed: 1976-07-07
Abstract: 1508934 Vicinal hydroxyesters and diesters CHEM SYSTEMS Inc 7 July 1976 [17 July 1975] 28235/76 Heading C2C [Also in Division B1] Vicinal hydroxyesters and diesters are prepared by contacting an olefinic compound with molecular oxygen in the liquid phase at above 150 C. in the presence as a catalyst of a tellurium metal iron and an iodide source, and a carboxylic acid. The olefinic compounds may be alkenes, ar-alkenes, and cycloalkenes which may contain inert substituent groups; many are listed and the preferred are ethylene, propylene, allyl alcohol, 1,3-butadiene, allyl acetate and chloride, butene-2, methyl butene-2, decene-1, styrene and cyclohexene. Suitable carboxylic acids are listed and the preferred are aliphatic acids (1-4c) and benzoic. The tellurium metal cation may be provided as the element or in a form to yield soluble metal ions and the iodine may be added as a compound to yield the ions; and a preferred ratio of iodine to tellurium is between 1 : 1 and 20 : 1. Examples describe the preparation of ethylene and propylene glycol diacetates and monoacetates and isobutylene glycol mono- and diacetates.
Patent GB-1006056-A (GB)
Title: Improvements in and relating to clamps or cramps
IPC: B25B1/20
Filed: 1963-07-17
Abstract: 1,006,056. Cramps. J. GALPIN. July 7, 1964 [July 17, 1963], No. 28311/63. Heading B4W. A cramp comprises four movable angle blocks 1, 2, 3, 4 adapted to engage with the corners of a frame to which tension is to be applied, a tensioning band 7 arranged to pass round three of the blocks and through slots 11 provided one on each side of the block 4, a tensioning block 12 within which one end of the band and a portion intermediate the ends of the band are arranged to be clamped and a take up drum 17 to which the other end of the band is secured, a screw 20 being provided for varying the distance between the tensioning block 12 and the block 4 to adjust the tension applied to the band. The block 12 is provided with two slots 13, 14, one end of the band 7 being arranged to pass through the slot 13 and being held in the slot by a wedge 15 which is held in clamping engagement by a bolt 16. The other end of the band 7 passes freely through the slot 14 to be wound on the drum 17. The screw 20 is rotatably secured in a retaining plate 21 provided on the angled block 4 and passes through a threaded bore in the block 12.
Patent GB-856288-A (GB)
Title: Preparation of olefins
Inventor: KNEE TERENCE EDWARD CREASEY
IPC: C07C2/30
Filed: 1958-09-04
Abstract: 2- and 3- alkyl butene-1 are formed by reaction of ethylene with an alpha olefin of the formula R-CH = CH2 where R is an alkyl group in the presence of an aluminium alkyl and a tetra-alkyl titanate.  The reaction may be effected in the presence of an inert hydrocarbon diluent or excess of the liquid alpha-olefin at room temperature to 150 DEG C.  R is preferably methyl when propylene and ethylene are reacted to give 2- and 3- methylbutene-1, the reaction of butene-1 with ethylene is also exemplified.