baber/WOPTO huggingface dataset:
Patent GB-1517250-A (GB)
Title: Fluid pressure-operated percussion earth boring device
IPC: E21B7/26
Filed: 1976-12-17
Abstract: The percussion tip (4) is moved axially in a reciprocating manner during ram boring. The displacement cone (9) sitting on the percussion tip (4) serves to radially displace the earth for forming a channel in the earth, e.g. for laying conduits. The entire implement is thus moved in the driving direction during ram boring and is pulled back in the opposite direction during removal from the formed channel. So that the displacement cone (9) is not released from the percussion tip (4) during the axial movements of the implement in both the driving direction and the opposite direction, these two components (9, 4) are provided with threads (13, 33) and are screwed to one another. In addition, these two components (9, 4) can also be provided with a conical bore on the one hand and with a conical stem (12) on the other hand, the cone being tapered in the driving direction, so that, during the driving of the implement, the displacement cone (9) is supported both via the threads (13, 33) and via the cone (12) at the percussion tip (4). <IMAGE>
Patent GB-1234889-A (GB)
Title: Rotary pump assembly
Inventor: HAILSTONE VICTOR LEONARD
IPC: F04C11/00
Filed: 1969-10-29
Abstract: 1,234,889. Gear pump assemblies. FORD MOTOR CO., Ltd. Oct.29, 1969, No. 52893/69. Heading F1F. A gear pump assembly including two simultaneously operable pumps suitable for use in an I.C. engine to pump oil from the engine oil pan to a tank and then from the tank to lubricate the engine, comprises a rotary internally-meshing N and N+1 lobe type pump having an inner rotor 14, Fig, 1, with, external lobes 18 and an outer rotor 16 with internal lobes 19 and external teeth 17 which mesh with teeth on a gear 10 mounted on the engine crankshaft 11 to constitute a gear pump which sucks oil up from the pan through an inlet passage 20 and discharges it through an outlet passage 21 to the tank. Oil from the tank passes to the rotary internally-meshing pump through an inlet chamber 23 and is discharged therefrom through an outlet chamber 24. A bleed passage (not shown) may connect the outlet chamber 24 to the inlet passage 20 of the gear pump to prime the gear pump on engine starting,
Patent GB-1515889-A (GB)
Title: Dye compositions
IPC: D06P1/92
Filed: 1975-12-30
Abstract: 1515889 Disperse dye compositions EASTMAN KODAK CO 30 Dec 1975 [2 Jan 1975] 53158/75 Heading D1B A dye composition comprises 5 to 75 parts by weight at least one nonionic disperse dye and 95 to 25 parts of one or more surfactants having a hydrophilic-lypophilic balance (HLB) rating of four to eight, these composition are used in dyeing nylon, polyesters and cellulose acetate in organic solvents. The surfactants may be sorbiton fatty acid esters, ethoxylated alcohols ethoxylated phenols, optionally ethoxylated alcohol sulphates, alkane sulphonates, alkanolamides, ethoxylated alkyl phenols and their sulphonates, ethoxylated amines, amides and their sulphonates, aryl sulphonates, ethoxylated fatty acids, fatty acid soaps, sulphonated fatty esters of fluorinated compounds, glyceryl esters, phosphate esters and their ethoxylates, fatty acid esters of sodium sulphosuccinate, tertiary amine oxides and amide sulphates. Preferred solvents are perchloroethylene, trichloroethylene, and 1, 1, 1 - trichloroethane.
Patent GB-1106517-A (GB)
Title: New method of synthesis of the ethyl esters and methyl amides of 3-phenyl-3-(4-pyridyl)-3-hydroxypropionic acid and 3-phenyl-3-(2-pyridyl)-3-hydroxypropionic acid
IPC: C07D213/55
Filed: 1965-12-20
Abstract: The ethyl ester of 3-phenyl-3(4-pyridyl)-3-hydroxy propionic acid and 3-phenyl-3(2-pyridyl)-3-hydroxypropionic acid are made by reacting 4-benzoyl pyridine or 2-benzoyl pyridine with ethyl chloroacetate in the presence of sodium ethoxide, treating the resulting glycidic ester with anhydrous HCl to give the ethyl esters of 2-chloro-3-phenyl-3(4-pyridyl)-3-hydroxy-propionic acid or 2-chloro-3-phenyl-3(2-pyridyl)-3-hydroxypropionic acid, and dehalogenating this compound by hydrogenation in an alcoholic solution in the presence of palladium oxide supported on calcium carbonate.  The ethyl esters may be converted to the corresponding N-methyl amides by treatment with 40% by wt. aqueous methylamine.
Patent GB-1190028-A (GB)
Title: The Manufacture of Polyolefin Film and of products formed therefrom
Inventor: SKOROSZEWSKI WLADYSLAW HENRY
IPC: B29C48/10
Filed: 1967-11-28
Abstract: 1,190,028. Polyolefin films. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 26 Nov., 1968 [28 Nov., 1967], No. 54139/67. Addition to 1,093,018. Heading B5B. In a process for the manufacture of a polyolefin film, as shown in Fig. 1, a polyolefin is melt-extruded downwards from an extruder 1 having a vertical extrusion die provided with an annular extrusion orifice and an air inlet through which air for inflating the extruded tubular film 2 is supplied. The film is drawn downwards from the die through a body of cooling water 3 by means of a pair of nip rolls 5 by means of which the film is fully collapsed to the lay-flat form and leakage of air from the inflated portion of the film prevented. Mounted for rotation in the upper part of the tank are two parallel nickel-plated driven chilling rollers 4 rotating in the opposite directions shown by the arrows and spaced apart so as to partly collapse and support the film 2 as it enters the water 3, but without actually nipping the film. The surface of the water 3 in its cooling tank is maintained at a level such that the axes of rotation of the chilling rolls 4 lie approximately within the plane of the water surface. Each of the chilling rolls 4 is provided with a device 6 for maintaining an even distribution of cooling water on the roll surface. As shown in Fig. 2, a preferred form of such a device comprises a wiper in the form of a pad 7 of flexible absorbent material such as filter cloth, for example, some five inches wide, which extends lengthwise of each roll 4, the roll diameter being, for example, about ten inches. One side of the cloth pad 7 is supported by a backing strip 8 itself carried at each end by the sides of the tank, the cloth pad 7 extending away from the backing strip 8 so as to lie on the surface of the roll 4 in a position such that there is about one inch of roll surface between the trailing edge 7a of the cloth pad 7 and the line of first contact of the roll 4 with the tubular film 2. The cloth pad 7 is partly supported by a perforated pipe 9 which extends lengthwise of the roll 7 and lies beneath the cloth pad 7 in such a manner as to direct cooling water to the underside of the cloth pad 7 (as indicated by the sprays 10). A fabric scraper 11 is also provided in rotational advance of the cloth pad 7 for cleaning the chilling roll 4 prior to contact with the cloth pad 7. Instead of the device shown in Fig. 2, each chilling roll 4 may be provided with a water trough positioned a short distance above and extending lengthwise of the roll, the trough having at its base either a permeable pad which contacts the peripheral surface of the roll or a pair of rubber or fabric lips which contact the roll and are caused to part when the roll rotates to an extent which permits water to pass between the lips on to the peripheral surface of the roll.
Patent GB-1416304-A (GB)
Title: Glass tube and non-glass finger grip arrangement for liquid dispenser
IPC: A61M3/00
Filed: 1972-11-23
Abstract: 1416304 Liquid dispensers MPL INC 23 Nov 1972 54212/72 Heading A5R [Also in Division B8] A liquid dispenser comprises a length of dieformed glass tubing having a substantially constant wall thickness substantially smaller than the diameter of the tubing, and a sleeve of thermoplastics resin having a laterally extending finger grip protrusion integrally formed thereon and being spaced rearwardly of the tube rear end, the sleeve being stretch-fit over and onto one end of the glass tube. A nose forming sleeve is provided at the opposite end of the tube. The dispenser has constructional features substantially the same as those shown in Specification 1416301.
Patent GB-1377995-A (GB)
Title: Holographic storage apparatus
IPC: G11C13/04
Filed: 1971-11-25
Abstract: 1377995 Holographic memories PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 25 Nov 1971 [28 Nov 1970] 54805/71 Heading G4A In a holographic system wherein a coherent beam is directed by a deflector LA on to selected locations of a composite hologram H to reconstruct, in a plane D containing an array of detectors and via a lens L 2 , respective images of an array M of light sources previously recorded thereon, the arrays of image points from successive locations on the hologram may not coincide nor be coincident with the array D, due to the type of hologram and the lenses employed. Such positional defects which are systematic in nature are reduced by employing a light de - flector LA comprising a tandem arrangement of angular deflection stages which give substantially no lateral displacement to the beam (variation of the angle of incidence at H is converted by L 2  to a positional variation of the image produced in plane D) and a tandem arrangement of displacement stages which primarily move the beam parallel to itself in such a manner that the angularly deflected light beam is still incident on the same selected area of the hologram H. The deflection and displacement arrangements may be intermingled.
Patent GB-1458878-A (GB)
Title: Combined heat exchanger and mixer
IPC: B01F7/00
Filed: 1974-12-19
Abstract: 1458878 Concentric heat exchangers AGFAGEVAERT AG 19 Dec 1974 [24 Dec 1973] 54893/74 Heading F4S [Also in Division B1] A combined heat exchanger and static mixer comprises an outer tube 1 for a material to be treated (e.g. a photographic emulsion) an inner parallel tube 2 for a heat exchanger fluid and mixing elements 4 in the form of successive, angularly offset helical segments within the outer tube. These may also be an external jacket (8, Fig. 2, not shown) for a heat exchange fluid, having a helical baffle 7. Preferably the ratio C/A of the external diameter of the inner tubes to the internal diameter of the outer tube is in the range 1 : 1À9-2À3 and the diameter/length ratio A/B of each mixing element in the range 1 : 1-1À5.
Patent GB-1164559-A (GB)
Title: Stabilised Polyurethanes
Inventor: OERTEL HARALD
IPC: C08G18/00
Filed: 1967-12-05
Abstract: 1,164,559. Derivatives of 2,6-di-tert.-butyl phenol. FARBENFABRIKEN BAYER A.G. 5 Dec., 1967 [5 Dec., 1966], No. 55175/67. Heading C2C. [Also in Division C3] A compound of the formula may be prepared by reacting the dimethyl ester of (3,5-di-tertiary butyl-4-hydroxyphenyl)-succinic acid with lithium aluminium hydride. A compound of the formula may be prepared by reacting 3,5-di-tertiary butyl-4-hydroxyphenyl-propylamine with propylene oxide in an autoclave. A compound of the formula may be prepared by reacting 2,6-di-tertiary butyl phenol with acrylonitrile in a solution of potassium in tertiary butanol to form 3,5-ditertiary - butyl - 4 - hydroxyphenyl - propionitrile which is isolated and hydrogenated in a solution of methanol, liquid ammonia and Raney cobalt to form the corresponding amine which is isolated and refluxed with propylene oxide. A compound of the formula may be prepared by adding 2,6-ditertiary butyl phenol to a solution of potassium in tertiary butanol, followed by addition of methyl acrylate to form the methyl ester of (3,5-di-tertiary butyl-4-hydroxyphenyl) propionic acid which is isolated and heated with diethanolamine. A compound of formula may be prepared by reacting 3,5-di-tertiary butyl - 4 - hydroxyphenyl succinic acid dimethyl ester with ethanolamine. A compound of formula may be prepared by reacting 2,6-di-tertiary butyl phenol with dimethyl maleate in a solution of potassium in tertiary butanol, isolating the dimethyl ester of (3,5-di-tertiary butyl-4- hydroxyphenyl)-succinic acid and reacting this with hydrazine hydrate. In all the above formulµ, the tertiary hydrocarbon groups indicated are tertiary butyl groups.
Patent GB-1240660-A (GB)
Title: Organosilicon compounds
Inventor: BUSH RICHARD PAUL
IPC: C07F7/21
Filed: 1967-12-06
Abstract: 1,240,660. Silazane compounds. MIDLAND SILICONES Ltd. 4 Dec., 1968 [6 Dec., 1967], No. 55485/67. Headings C3S and C3T. Nitrogen containing organosilicon compounds are prepared by reaction of (i) an organic or organosilicon compound having at least one SiOH and/or COH group with (ii) a cyclodisilazane of formula wherein each R and R<SP>1</SP> is a C 1-5  alkyl or C 1-6  alkenyl radical or a monocyclic aryl radical and R<SP>11</SP> is H or a C 1-11  alkyl radical. The reaction is usually conducted at 10-80‹ C., optionally in a solvent, e.g. benzene, hexane, or tetrahydrofuran. Suitable compounds (i) include phenol, p-nitrophenol, p-aminophenol, cresol, catechol, resorcinol, bisphenol A; methanol, isopropanol, n-butanol, cyclohexanol, allyl alcohol, benzylalcohol, ethylene or propylene or tetramethylethylene glycol, glycerol, erythritol, mannitol, arabinose, fructose; acetic, propionic, trifluoroacetic, lactic, oxalic, tartaric, benzoic, salicylic, isophthalic and terephthalic acids; triphenylsilanol, diphenylsilanediol and methylphenylsilanediol; and hydroxy - terminated polyethers, polyesters, phenolic resins, polysiloxanes and polysilarylenes. When monohydroxy compounds, AOH, are used, the products are of Formula (1) when dihydroxy compounds A(OH)2 are used the products are polymers having units of Formula (2) or cyclic compounds of Formula (3) polymers having more than 2 OH groups may be cross-linked by compounds (ii). In examples products of types (1), (2) and (3) above are prepared from 1-trimethylsilyl-2:2:4:4-tetramethyl cyclodisilazane and phenol [type (1), Ex. 1], bisphenol A [type (2), Ex. 3], a hydroxyterminated polydimethylsiloxane of M.W. 1760 [type (2), Ex. 5], and 2:2:3:3:4:4-hexafluoropentane-1:5-diol [type (2), Ex. 6], and from 1- trimethylsilyl-2:2:3:4:4-pentamethyl cyolodisilazane and resorcinol [type (2), Ex. 2] and diphenylsilanediol [type (3), Ex. 4].
Patent GB-1480797-A (GB)
Title: Mowing implement and drive unit therefor
IPC: A01D34/30
Filed: 1974-12-23
Abstract: 1480797 Mowing implement; drive unit MULTINORM BV 23 Dec 1974 [28 Dec 1973] 55624/74 Heading A1F A drive unit for a mowing implement, which is described in Specification 1480796 comprises a housing and a driving gear formed by a series of gear wheels arranged in the housing the series comprising both driving gear wheels for connection with cutting members of the mowing implement and intermediate gear wheels, characterised in that the intermediate gear wheels are irremovable from the housing without at least damaging the drive unit. The claims also relate to a mowing implement comprising a plurality of cutting members supported in a drive unit the housing of which extends transversely of the direction of movement of the implement. The embodiments of figures 23, 24, 25, 26 and 27 show the top 5 and bottom (73) of housing 3 joined by various forms of connecting means 76 extending through the bearing means of each intermediate gear wheel 11. Specifications 1480798 and 1480799 are also referred to.
Patent GB-1201659-A (GB)
Title: Improvements in or relating to memory devices
Inventor: DEARNALEY GEOFFREY
IPC: H01L45/00
Filed: 1967-09-25
Abstract: 1,201,659. Cathode ray storage tubes; semiconductor devices. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 5 Dec., 1968 [25 Sept., 1967; 7 Dec., 1967], Nos. 39331/67 and 55787/67. Headings H1D and H1K. The target of a cathode-ray storage tube for storing binary data comprises an unsaturated oxide or fluoride layer of material which exhibits bombardment-induced conductivity which persists after the bombardment ceases, the material being supported on a conducting or semi-conducting substrate. In the drawing the target comprises a layer of silicon monoxide 11, which may be about 1 micron thick, deposited on an N-type silicon layer 13 which forms a junction with a P-type silicon layer 14. The strength of the scanning electron beam is controlled according to whether the operation desired is reading, writing or erasing, for which the beam intensities may be 5 Î 10<SP>-10</SP>, 10<SP>-8</SP> and more than 10<SP>-7</SP> A/square micron respectively. The sensitivity may be increased by applying a very thin layer of gold or platinum to the surface of the oxide layer, and the erase time may be reduced by operating the target at 200‹ C. The output may be derived from a returning beam reflected from the target to an electron multiplier (not shown) instead of from the junction between layers 13 and 14, and the semi-conductor substrate may be replaced by a metal one.
Patent GB-1211790-A (GB)
Title: Curable mixtures of epoxy resins, polycarboxylic acid anhydrides, and amine accelerators
IPC: C08G59/68
Filed: 1968-11-25
Abstract: 1,211,790. Epoxy resin coating. CIBA Ltd. 25 Nov., 1968 [8 Dec., 1967], No. 55824/68. Heading B2E. [Also in Division C3] Substrates, e.g. of sheet iron, are coated with a sinter powder comprising: (I) an epoxy resin, (II) a polycarboxylic acid anhydride as curing agent, and (III) an accelerator which is a monoaminopyridine of formula: in which (independently) R<SP>1</SP> and R<SP>2</SP> represent H, aliphatic, cyclo- or ar-aliphatic or aromatic radicals or R<SP>1</SP>+R<SP>2</SP> may be a divalent aliphatic,. cycloon ar-aliphatic radical. Examples of III are 3- or 4-aminopyridine or 4-anilinopyridine. Conventional fillers, pigments and extenders may be present. The coatings may be cured by heating, e.g. for up to 30 mins. at 150-200C.
Patent GB-1441749-A (GB)
Title: Aminoethanols
IPC: C07D263/04
Filed: 1972-12-05
Abstract: 1441749 N - Disubstituted - 2 - aminoethanols BEECHAM GROUP Ltd 5 Dec 1973 [5 Dec 1972] 56004/72 Heading C2C Compounds of the formula wherein R is a n-propyl or i-butyl group, are obtained by reacting an oxazolidine of formula with an alkylmagnesium halide, R 1  Mg-hal, followed by hydrolysis, wherein (1) R 1  and R 2  are both C 2 H 5 , (2) R 1 =CH 3  and R 2 =n-C 3 H 7 , (3) R 1 =CH 3  and R 2 =i-C 4 H 9  or (4) R 1 =i-C 3 H 7  and R 2 =C 2 H 5 . The hydrolysis is preferably effected using water or an aqueous salt solution (e.g. saturated aqueous NH 4 Cl). The oxazolidine starting materials are prepared by reacting an amine of formula, with formaldehyde.
Patent GB-1174240-A (GB)
Title: Improvements in Apparatus for Measuring the Density of Fluids
IPC: E21B47/06
Filed: 1966-12-14
Abstract: 1,174,240. Measuring pressure electrically. SOC. DE PROSPECTION ELECTRIQUE SCHLUMBERGER. Dec.14, 1966 [Dec. 14, 1965j, No.56058/66. Heading G1N. Apparatus for measuring the density of a fluid, by measuring the differential pressure between two points in the fluid spaced apart vertically by a known amount, comprises a cylindrical probe 12 whose interior is in communication with the fluid 10 via ports 44, 46, 48, 50, 84 and 86 and which houses elastic bellows 34, 36 having springs 56, 58 bearing against their ends. The bellows are connected together by a rigid conduit 42 attached to their adjacent movable ends. Vertical movement of the conduit, indicative of the pressure difference at the bellows, is sensed by a differential transformer 74 whose core 80 is attached by rods 70, 72 to the outlet end 43 of the conduit. To allow for changes in volume of the fluid, e.g. kerosene, in the bellows due e.g. to temperature changes, the bellows 36 communicates via restriction 60 with a further bellows 64 whose outer surface is in contact with the fluid via ports 88. To allow for thermal expansion of the apparatus the rod 72 is made of, e.g. aluminium alloy, while the rest of the supporting structure and rod 70 is made of e.g. stainless steel. Similarly the springs and bellows are made of e.g. (Registered Trade Mark) "Invar" and phosphor bronze respectively so that the assembly has a zero thermoelastic coefficient. The springs may be omitted.
Patent GB-1210409-A (GB)
Title: A process for descaling corroded metal surfaces
Inventor: LENZ ARNOLD
IPC: C23G1/28
Filed: 1967-12-12
Abstract: 1,210,409. Descaling metal. DYNAMIT NOBEL A.G. Dec.12, 1967 [Dec.13, 1966], No.56518/67. Heading C7E. To rid them of scale metal articles are immersed in a fused alkali metal hydroxide bath, containing 0À3 to 5% by weight of NaH and suitably otherwise of NaOH and/or KOH, or at least 150 C. then are quenched in a water bath, rinsed and mechanically treated. The mechanical treatment may be spraying with water, application of compressed air, brushing or shaking. Immersion in the fused bath affects from 50 to 80% of the scale only, and leaves it loosened and partially reduced so that the quenching and mechanical treatment are able to complete descaling.
Patent GB-1391637-A (GB)
Title: Electronic timepieces and electronic calculators
IPC: G04G9/00
Filed: 1972-12-11
Abstract: 1391637 Watches combined with other articles SUWA SEIKOSHA KK 11 Dec 1972 [27 Dec 1971 #2] 57017/72 Heading G3T A digital electronic watch is combined with an electronic calculator, a switch being provided whereby the numeric display 21 may show the time or the results of calculations. As shown the switch is operated by a knob 27 while a conventional knob 22 serves for setting and zeroing the indicated time. To insert data for calculation, a ring 23 is rotated until the desired numeral or function indicator is opposite mark 24 and knob 25 is then operated. The ring 23 carries one or more contacts co-operating with fixed contacts connected to the calculator circuitry, Figs.3, 4 (not shown). A twelve figure display in two rows of six figures may be provided; only six figures are normally used, but if a calculation needs a display of over six figures, operation of a knob 26 causes the upper order figures to be displayed in an upper row.
Patent GB-1281080-A (GB)
Title: Process for producing resist effects by means of reactive dyestuffs
IPC: D06P5/12
Filed: 1969-11-21
Abstract: 1281080 Producing resist effects with reactive dyes FARBWERKE HOECHST AG 21 Nov 1969 [22 Nov 1968] 57176/69 Heading D1B Resist effects with reactive dyes are produced on flat-surface textile materials of natural or regenerated cellulose fibre by printing the material in any order with a print paste containing a non-volatile organic or inorganic acid or acid salt as reserving agent, the reserving  agent containing no fibre reactive groups, and a reactive dyestuff which can be fixed by a two-phase pad-batch or two phase rapid-fixing process, and applying in overlapping manner a further printing paste or padding liquor containing an alkali as fixing agent and another reactive dyestuff which cannot be fixed by the above fixing processes or which gives only low yields, and after drying the material, fixing the dyestuffs by steaming in combination with one of the above two-phase fixing processes. Azo, anthraquinone and phthalocyanine dyes are mentioned, steaming takes place at 98 to 180‹C for 2 to 15 minutes and tartaric acid, citric acid and primary alkali metal phosphates, are preferred acid compounds. In modifications mixtures of reactive dyes of different fixation properties may be used and the acid resist may be applied without reactive dyestuff present. Further additives include urea, wetting agents, weak oxidising agents and/or thickening agents.