baber/WOPTO huggingface dataset:
Patent GB-1162610-A (GB)
Title: Sulfur Dioxide Recovery Process
IPC: C01B17/60
Filed: 1967-10-24
Abstract: 1,162,610. Extracting SO 2  from waste gas. TREADWELL CORP. 24 Oct., 1967 [25 Oct., 1966], No. 48211/67. Heading C1A. Sulphur dioxide is recovered from hot waste combustion gas by (i) cooling gas, (ii) contacting gas at atmospheric pressure in an absorber with sufficient water to dissolve a major proportion of the sulphur dioxide, (iii) flashing the solution in a gas recovery zone at reduced pressure to obtain gas and water vapour which is condensed, and (iv) recycling water to the absorber. Cooling may take place using recycled water and the flashing apparatus may incorporate a stripper operating at very low pressure for final recovery of gas. Waste gas supplied, e.g. at 150-500‹ F., may contain less than 7% SO 2 : product gas may contain at least 25% SO 2 . As shown, in cooler 11 gas from 10 flows counter current to cooling water 12. Cooled gas passes to absorber 18, there contacting water spray 18. Waste gas is expelled at 20 and a solution comprising, e.g., 75% of the SO 2  present passes to a gas recovery zone comprising flashing tanks 22, 34, 41, 48 (operating at successively reduced pressure) and stripper 55. Product gas is discharged to line 27 via lines 23, 35, 42, 49, 64, water vapour being removed in condensers 26, 38, 45, 51, 59, 63 with discharge of water via lines 29, 32. Water from stripper 55 is recycled to absorber 17, minus bleed-off at 81 (to maintain constant acidity), plus make-up at 82. Lowpressure steam for stripper 55 is provided via lines 72, 77 after passing water from cooler 11 through flash steam generators 71, 74 operating at substantially stripper pressure: residual water is recycled to cooler 11.
Patent GB-1416620-A (GB)
Title: Microwave generating and receiving apparatus
IPC: G01S7/03
Filed: 1973-10-17
Abstract: 1416620 Doppler radar; aerials MULLARD Ltd 17 Oct 1973 48262/73 Headings H4D and In a microwave generating and receiving apparatus first and second adjacent waveguides respectively contain an oscillator device and first and second mixer diodes. RF energy generated in the first waveguide is partly transmitted through one end thereof, and is partly coupled by a coupling means into the second waveguide through a side wall thereof. RF energy is also received through one end of the second waveguide, and the spacing of the diodes and of the coupling means therealong is such that the coupling means and the first diode are each further from that end than the second diode. The apparatus is applicable to Doppler radar, and in one embodiment two contiguous rectangular waveguides 1, 2, Fig. 1, have a common narrow wall 3, are terminated at one end by a short-circuit 4, and are mounted at their other ends, which form aerial apertures, on a flange 5. The waveguide 1 accommodates a Gunn device 6 which is spaced #/2 (# = wavelength at the mean operating frequency) from the termination 4. The waveguide 2 accommodates two matched mixer diodes 7, 8. The coupling means is a circular iris 9 in the wall 3, with a diameter approximately two-thirds the width of said wall, and located approximately mid way between the Gunn device 6 and the termination 4. The iris 9 and the first diode 7 are each further from the open end of the waveguide 2 than the second diode 8, the two diodes being on opposite sides of the iris. By spacing the diode 8 a distance of #/8 from the iris a phase difference of 90 degrees results in its output relative to that from the diode 7, and from the sign of this (positive or negative) the sense of the velocity of a target may be ascertained. In another embodiment, the two diodes are both between the iris and the open end of the waveguide, and are spaced #/8 apart (Fig. 2, not shown). In a third embodiment, an additional receiving waveguide 10, Fig. 3, is provided, on the other side of the waveguide 1, containing mixer diodes 12, 13 and having a coupling iris 14 through its common wall 11 with the waveguide 1. The diodes 7, 8 and 12, 13 are located between their respective associated irises 9, 14 and the open ends of the waveguides. Each pair of diodes is spaced #/4 apart, which enables unwanted noise to be reduced by combining their outputs. A 90 degree phase difference between the two combined outputs, to enable velocity sense determination, is provided by spacing the irises #/8 apart.
Patent GB-1142191-A (GB)
Title: Processes for the preparation of therapeutic extracts from fruit
IPC: A61K36/00
Filed: 1964-11-27
Abstract: 1,142,191. Preparations from decayed fruit of rosaceae. E. M. COBB. 28 Feb., 1966 [27 Nov., 1964], No. 48272/64. Heading A5B. Medicinal substances are produced by allowing edible fruits from plants of the family Rosaceae to undergo fungal decay by means of those micro-organisms which cause the fruit to decay under natural conditions, expressing the juice from the decayed fruit, and clarifying it. The resulting liquid may be admixed with carriers, diluents, and other pharmaceutical excipients, and may be employed in pharmaceutical forms suitable for oral, topical or parenteral administration. The fruit employed is preferably the apple, or may be pear, cherry, plum, quince, peach, nectarine, almond or apricot fruit. The preparation is said to have anti-cancer and antimicrobial activity.
Patent GB-1158139-A (GB)
Title: Hair Dressing Composition
Filed: 1966-10-27
Abstract: 1,158,139. Hair dressing composition. CLAIROL, Inc. 27 Oct., 1966 [23 Dec., 1965], No. 48319/66. Heading A5B. [Also in Division C4] A hairdressing composition, which conditions the hair and imparts gloss thereto, contains at least one dimethyl polysiloxane having a b.p.t. failing in the range of from 170‹C to 265‹C. The composition may also contain at least one dimethylpolysiloxane which has a boiling point of either below 170‹C. or above 265‹C. The dimethylpolysiloxanes may be linear or cyclic polymers, e.g. D 4 , M<SP>1</SP>D 2 M, M<SP>1</SP>D 3 M, D 5 , D 6  or M<SP>1</SP>D 4 M in which M<SP>1</SP> represents (CH 3 ) 3  SiO-; D represents -Si- (CH 3 ) 2 -O- and M represents-Si-(CH 3 ) 3 . The composition may contain from 2 to 25% by weight of the total composition of the dimethylpolysiloxane and be in the form of an aerosol, oil-in-water or water-in-oil emulsions (cream or lotion) or gell preparations. Other conventional components which may be present in the composition include perfume, lanolin or derivatives thereof, spreading agents, surfactants, conditioning agents and propellants.
Patent GB-1420922-A (GB)
Title: Earth cutting machinery
IPC: E02F3/65
Filed: 1971-10-19
Abstract: 1420922 Earth cutting machine INDUSTRY SECRETARY OF STATE FOR 19 Jan 1973 [19 Oct 1971] 48605/71 Heading E1F An earth cutting machine has a main body 1 supporting a cutting assembly including a blade 12, a motor 2 which supplies power to driving means to move the machine, and means connected between two parts of the earth cutting machine or to the drive means and responsive to the magnitude of a load opposing cutting action to control the power supplied by the motor and regulate the speed at which the machine is driven forward and so limit the load. The main body 1 may be mounted on a chassis 6 by means of springs 7, 8, with a link 18 connected to the main body governing the angular position of the swash plate of a hydraulic pump unit 15 to regulate the drive to hydraulic motor 29 driving wheels 9 and 10. Alternatively, Fig. 2 (not shown), there may be a strain gauge (21) between the cutting assembly and the main body whose output controls the drive. The blade 12 is vibrated by devices 13a, 13b and the signal from the strain gauge is averaged accordingly. Or the load responsive means may be a transducer 30 responsive to the pressure in pipe 32 supplying the motor 29. Earth cut by the blade is removed by conveyors 4, 5.
Patent GB-1507340-A (GB)
Title: Hydroxypolyhaloisopropyl substituted ureido-compounds
IPC: C07C239/00
Filed: 1975-11-26
Abstract: The novel anilino-2-oxazolines of the general formula <IMAGE>  in which R, Rf, X2, X5 and X6 have the meaning given in Claim 1, are prepared by intramolecular condensation of compounds of the general formula <IMAGE> in which Q1 is a reactive group. The novel compounds have antihypertensive action.
Patent GB-1246272-A (GB)
Title: Improvements in or relating to inorganic oxides
Inventor: COWLARD FREDERICK CLAUD
IPC: H01F1/03
Filed: 1967-10-26
Abstract: 1,246,272. Metal oxides. PLESSEY CO. Ltd. 18 Oct., 1968 [26 Oct., 1967], No. 48717/67. Addition to 1,243,772. Heading C1A. [Also in Division H1] A dry, granular oxide including compound oxides containing atoms of more than one metal is made by dripping or spraying a stoichiometrically mixed solution of heat-decomposable metal salts on to a mechanically agitated upper surface of a heated bed of grains of such decomposition product, while the bed surface is maintained at a constant level sufficiently high to ensure complete submersion of the mixing elements in the granular material. The bed level is maintained by constantly withdrawing granular product and subjecting it to further heating, combined with mechanical agitation, to convert a desired proportion of mixed oxides to compound oxides. No carrier gas stream is used in the decomposition bed. Ferrites may be made by decomposition and calcination of metal nitrates. In an example, a manganese zinc ferrite having 60% spinel structure is made using a bed temperature of 250Œ10‹ C. and a calciner at 800‹ C. The particles leaving the bed are 50-150 microns in size. Nitric acid is recovered by leading oxides of nitrogen in 10 to absorption columns 11, 12 provided with O 2  inlet 14, water-cooling tube 15 and nitric acid collectors 16. Residual oxides of nitrogen are removed by reaction with an aqueous ZnO suspension in vessel 17 (see Specification 1,221,426). The resulting zinc nitrate is recycled to containers 1, 2 or 3.
Patent GB-949822-A (GB)
Title: Improvements in or relating to current control circuits
Inventor: BACON KENNETH FRANK
IPC: H02P9/30
Filed: 1962-12-28
Abstract: 949,822. Rectifying; alternators. MULLARD Ltd. Dec. 28, 1962, No. 48830/62. Headings H2A, H2F and H2H. A circuit for controlling the current in D.C. load L fed through a rectifier from constant current A.C. source A comprises a means such as a controlled rectifier SCR to shunt alternate half-cycles only back to the source. The rectifier SCR may be connected across terminals t1, t2 or across one arm D4 of a bridge rectifier. The circuit may be employed to regulate an A.C. generator field excitation circuit fed by both voltage and current (Fig. 3) derived from the output. Overcompounding is employed to give sufficient current under short circuit conditions to operate fuses, which overcompounding is reduced in normal conditions by a voltage sensitive device triggering into conduction the rectifier SCR which is connected across two lines or one arm of a bridge rectifier, thus diverting about two-thirds of the compounding current from the field winding. Specification 910,812 is referred to.
Patent GB-1090570-A (GB)
Title: Adjustable pitch sheave
IPC: F16H61/662
Filed: 1965-11-19
Abstract: 1,090,570. Expanding-wheel gear. DODGE MANUFACTURING CORPORATION. Nov. 19, 1965 [Dec. 23, 1964], No. 49301/65. Headings F2D and F2U. One flange 22 of a variable-pitch V-belt sheave is moved axially on the sheave-mounting hub 10 of the other flange 14 during running by a manually rotated lead-screw 98 axially fixed by bearings 102, 104 in the hub 10 and acting, through a non-rotating nut 62 and ball-race 72, on a sleeve 24 of the flange 22. Rotation of the nut is prevented by a radius arm 90 engaging a fixed stop, and the screw is turned by an endcap 120, which encloses part of the nut 62, has a seal-ring contact 130 therewith, and is locked relatively thereto by a detent 134 in the nut engaging one of a number of grooves in the cap 130. Graphite bushings 36, 38 are provided between the sleeve 24 and hub 10. The hub 10 is secured on a shaft, (not shown), by a split-coned bush, 150, drawn into the tapered end bore of the hub by a nut 20 screwed to the hub and connected axially to the bush by a snap-ring 160.
Patent GB-1448239-A (GB)
Title: Apparatus arrnaged to play back recorded information
IPC: G02B27/10
Filed: 1973-10-23
Abstract: 1448239 Optical playback of disc records MCA DISCO-VISION Inc 23 Oct 1973 [24 Oct 1972] 49385/73 Heading G5R A disc record is played back by reflection of a beam of radiation provided by a head which can be moved over the disc, the path of the beam relative to the head being adjustable. As shown, an optical playback head 14 is carried on a pivoted arm 16 to swing across a rotating disc record 20 and is supported at least partly by a air-bearing shoe 50. A laser beam from the head is modulated and reflected by the record 20 back along the same path, which includes at least two reflections between two mirrors 54 and 56, until it is diverted by a beam-splitter (30), Fig. 2 (not shown), to a detector (40). A track-following servo system, Fig. 4 or 5 (not shown), adjusts the pivoted mirror 54. As the head 14 moves towards the centre of the record 20, the air bearing becomes weaker and the head is increasingly supported mechanically, under the control of a cam-and-follower assembly (132), Fig. 7 (not shown), connected to a cable 130.
Patent GB-1208350-A (GB)
Title: Hollow conductor roll for electrolytic plating apparatus
Inventor: HATAGI HIROYUKI
IPC: C25D7/06
Filed: 1968-10-18
Abstract: 1,208,350. Rollers. NIPPON KOKAN K.K. 18 Oct., 1968, No. 49402/68. Heading F2U. [Also in Division C7] A conductor roll, suitable for use in making electrical connection with a metal strip during electrolytic plating of the strip with Zn, comprises a hollow Cu shaft 1, a steel sleeve 2 tightly fitted on the shaft, a hollow steel roll body 4 having an electroplated hard Cr layer 5 on its outside surface and a Cu lining 6 on its inner surface, steel coupling members 3, 3<SP>1</SP> connecting the roll body 4 and roll sleeve 2, and a conductive connecting member 7 interconnecting the lining band shaft 1. Current connection to the roll is by means of a ring 8 and brushes 9. Cooling liquid, such as water, can be passed through the roll from a source 14.
Patent GB-1079148-A (GB)
Title: Alkylation of tin
IPC: C07F7/22
Filed: 1965-11-22
Abstract: Tin of particle size 1 - 300 m  is surface activated with an alkali metal, e.g. Na, by adding the liquid alkali metal to a fluidized bed of the tin particles at 120 DEG C.  The fluidizing gas is He or Ar the activated tin can be heated to 100 - 200 DEG C. to diffuse the alkali metal into the tin to form an alloy.  The tin can contain 1 - 35% wt of alkali metal.ALSO:Organo tin halides are prepared by reacting alkyl aryl or cycloalkyl halides with Sn which has a particle size within the range 1 to 300m . The reaction temperature may be at least 100 DEG  C. The surface of the tin may be activated by treatment with an alkali metal, e.g. 1-33 wt. per cent.  The reaction may be carried out in the presence of iodine or an iodine containing catalyst, e.g. HgI2, MgI2ZnI2 and C4H9I, and under a pressure of up to 150 p.s.i., and in an inert solvent, e.g. aliphatic and aromatic hydrocarbons, ethers, esters and polychloro benzene and diphenyls.  The product may be recovered by distillation filtration or centrifugation or by precipitation of the product tin oxides or amine complexes.
Patent GB-1164226-A (GB)
Title: Improvements in or relating to Control Means for a Continuously Variable Drive.
IPC: F16H61/42
Filed: 1967-11-01
Abstract: 1,164,226. Change-speed control. LINE A.G. 1 Nov., 1967 [24 Feb., 1967], No. 49610/67. Heading F2D. In the control of a vehicle, e.g. stacker or shovel loader, infinitely variable-speed gear, mechanical or hydraulic, of the type having two pedals 1, 2 for forward and reverse, and in which depression of one pedal raises the other, a third pedal 9 having a cross-member 8 with two stop members 10, 11 for engaging pedals 1 and 2 is also provided so that, on depressing pedal 9, whichever pedal 1, 2 had been depressed previously, pedals 1 and 2 are brought back to their central position neutralizing the gear, and facilitating engine braking. As shown, for an hydraulic gear, pedals 1 and 2 cut through bevel gears 3, 5 on a bevel gear 4 carrying a lever 12 which positions a pair of pistons 13 of a follow-up servo-system to adjust the gear. The pedal 9 may also adjust the speed of the engine; it may be connected to the ignition to stop the engine when the gear is neutralized; it may apply friction brakes to the vehicle wheels; and it may control the main clutch. Additional independent controls may be provided for engine speed and brake application. In Figs. 2, 3 (not shown) the third pedal (19) is adapted to apply a friction brake when excess pressure is applied to the pedal after normal pressure to neutralize the gear. The pedal comprises a crank lever pivoted between a pair of levers (34) carrying the cross-member 20 and its stops, and fast with a sleeve (25), a tension spring (37) connecting the pedal and the sleeve and a pair of stops being provided on the levers and pedal so that the pedal is aligned with the levers during normal operation. On applying excess pressure to the pedal, the crank lever pivots relative to the levers (34) against the action of the spring (37) to act through link work (41-46) to apply a friction brake. The forward and reverse pedals (21), (22) are also mounted on sleeves (23), (24) on opposite sides of sleeve (25) and interconnected by a lever (29) pivoted at its centre about a horizontal pin.
Patent GB-1439979-A (GB)
Title: Flame-proof finish of fibrous material with derivatives of  phosphoric acid esters
IPC: D06M13/292
Filed: 1973-10-25
Abstract: 1439979 Condensation products containing phosphorus and nitrogen HOECHST AG 25 Oct 1973 [2 Nov 1972] 49694/73 Heading C3R [Also in Division D1] Compositions for applying flame-proof finishes to fibrous materials comprise mixtures of phosphorus compounds I with nitrogen compounds II, or precondensates obtained by reacting phosphorus compounds I with nitrogen compounds II, Phosphorus compounds I have the formula where n is 0 to 4, R<SP>1</SP> is haloalkyl or hydroxyalkyl, at least one R<SP>1</SP> being haloalkyl, and at least one R<SP>1</SP> being hydroxyalkyl, and R<SP>2</SP> is a group of formula where R<SP>3</SP> and R<SP>4</SP> are hydrogen or alkyl, at least one being hydrogen, and m is 0 to 10. Nitrogen compounds II have the formula where R<SP>5</SP> is hydrogen or alkyl, R<SP>6</SP> is -CO-, -CS- or where R<SP>7</SP> is hydrogen, a hydrocarbon radical or -N(R<SP>8</SP>) 2 , R<SP>8</SP> being hydrogen, alkyl or -CH 2 -O-R<SP>5</SP>, R<SP>9</SP> and R<SP>10</SP> are hydrogen, alkyl or -CH 2 OR<SP>5</SP> or together are -(CH 2 ) 2 -, -(CH 2 ) 3 -, -CHOH-CHOH-, -CH 2 -CHOH-CH 2 -, -CH 2 -C(CH 3 ) 2 -CH(OCH 3 )-, -CH 2 -O-CH 2 -, -CH 2 -N(R<SP>11</SP>)-CH 2 - or where R<SP>11</SP> is alkyl or hydroxyalkyl and R<SP>12</SP> is hydrogen, alkyl or -CH 2 -O-R<SP>5</SP>. The compounds I and II are either simply mixed or are partially condensed and applied in solution to the fibrous material which is dried and heated to effect curing. Compounds I and II react with one another with splitting off of water or an alcohol R<SP>5</SP>OH. An N-methylol derivative and/or an acid catalyst may be included in the solution applied to the fibrous material. Examples are given.
Patent GB-1249624-A (GB)
Title: Improvements in or relating to metal coatings
Inventor: BURKIN ALFRED RICHARD
IPC: C04B41/51
Filed: 1967-05-24
Abstract: 1,249,624. Coating with metals. DEFENCE, SECRETARY OF STATE FOR. Aug. 23, 1968 [May 24, 1967; Nov. 3, 1967], Nos. 24076/67 and 50147/67. Heading C7F. Transition metals are deposited on substrates by contacting them with a solution of a heat decomposable organometallic compound consisting of a transition metal exhibiting zero valency combined with at least one organic ligand, and applying heat to the solution so that the temperature of the solution and thereby the temperature of the substrate, is increased to the decomposition temperature of the organometallic compound. The metal may be Cr, Mo, W, or Fe, and the organometallic compound may be a bis-arene compound wherein the arene is benzene, cumulene, mesitylene or toluene, ArM(CO) 3  or ArM(CO) 4  wherein M is Cr, Mo, W and Ar is naphthalene, tetrahydronaphthalene, anthracene, biphenyl paraterphenyl, metaterphenyl, trans stilbene, 1, 4 diphenylbuta- 1, 3, -diene or 2, 2<SP>1</SP> dipyridyl, or a metal bis cyclopentadiene, e.g. ferrocene. The solvent may be n-octadecane, n-eicosane, or n-docosane, and may contain PhHC = CHPh or PhHC = CH-CH = CHPh. The substrate may be a fibre or whisker, activated or polycrystalline Al 2 O 3 , sapphire with optically polished faces, silicon nitride whiskers, palladium-plated Al 2 O 3  rods, plaster of Paris, SiC whiskers, glass fibre, mica, gold, metal, or metal-coated material.
Patent GB-1098420-A (GB)
Title: Improvements in or relating to electric oscillators
Inventor: PRATT GEOFFREY
IPC: H03B5/36
Filed: 1965-11-26
Abstract: 1,098,420. Keying oscillator circuits; transistor oscillators. GENERAL ELECTRIC CO. Ltd. Nov. 21, 1966 [Nov. 26, 1965], No. 50349/65. Headings H3R and H3T. A crystal oscillator includes an asymmetrically-conducting device, arranged such that on starting the oscillator the crystal is rendered ineffective and the frequency of the oscillator is determined by an inductance-capacitance network tuned approximately to the resonant frequency of the crystal. The tuned circuit 3-7 may have a low Q compared to that of the crystal so as to ensure a rapid build-up of the amplitude of oscillation on starting. When the switch contacts 19, which may be replaced by a transistor switching circuit, are connected, the transistor oscillator starts to oscillate due to the tuned circuit 3-7 and the low impedance presented by the diode 16 shunts the crystal to render it ineffective. As the oscillation amplitude increases, capacitor 13 charges to reverse bias the diode 16 so that the crystal then takes over control of the oscillator.
Patent GB-1077758-A (GB)
Title: Dyeing and permanent weaving of keratinous substances
Inventor: ISAJI TOSHJO
IPC: A61K8/49
Filed: 1964-12-11
Abstract: Keratinous substances, e.g. hair, are dyed and simultaneously permanently waved with a solution at pH 8-9.6 comprising thioglycollic, thiosuccinic or thiolactic acid or their alkali metal, ammonium or ethanolamine salt in an amount equivalent to 1-7% on the weight of solution calculated as thioglycollic acid, 1-5% of urea or thiourea and/or 0.1-1% of a proteolytic enzyme and 0.5-5% of a metal containing dyestuff.  The preferred dyes, are chromium complexes of o,o\sv-dihydroxyazo dyes containing -SO3H groups.  The hair may be after-treated with an aqueous solution of an organic acid at pH 3-4 which may contain an oxidising agent, e.g. H2O2 or potassium bromate. The specified proteolytic enzymes are pepsin, papain and phytin.  The dye compositions may be applied at 20-25 DEG C and they may further contain alkalis, e.g. ammonia or ethanolamines, sodium alkylbenzene sulphonates, alkylolamides, propylene glycol, glycerine, isopropyl alcohol and oleic or stearic acid.  Examples are given.