baber/WOPTO huggingface dataset:
Patent GB-1054234-A (GB)
IPC: B65D5/16
Abstract: 1,054,234. Oxidizing aldehyde. DYNAMIT NOBEL A.G. Jan. 14, 1965 [Jan. 17, 1964; Feb. 13, 1964; March 3, 1964], No. 1776/65. Heading C2C. Aldehydes are oxidized in an aqueous medium with cupric oxide or hydroxide as oxidizing agent to an alkali metal salt of a carboxylic acid either (a) in the presence of an alkali-metal hydroxide and silver, or another noble metal, or oxide or hydroxide thereof, or (b) in the presence of an alkali-metal carbonate or bicarbonate and a noble metal, or oxide or hydroxide thereof. Silver, gold, mercury, platinum, ruthenium, rhodium, palladium, osmium and iridium are the noble metals and the free acid may be obtained from the salt. Examples describe the preparation of sodium acrylate, sodium diethylacetate, sodium benzoate, sodium hexahydrobenzoate, the sodium salt of pyromucic acid, sodium cinnamate. The process may be continuous by regeneration of the oxidizing agent by oxygen or oxygen-containing gases and a neutral solution promotor such as 1: 4- dioxane may be present in the medium.
Patent GB-1054465-A (GB)
IPC: F16K31/42
Abstract: 1,054,465. Valves. SCOVILL MANUFACTURING CO. March 30, 1965 [April 2, 1964], No. 13405/65. Heading F2V. In a pilot valve actuated spool valve for supplying fluid from an inlet port 27c to one of ports 27b or 27d leading to a double-acting piston and simultaneous discharge from the other port to ports 27e or 27a, each port is let into a separate one of valve body sections 11-15 which are clamped together by a rod 21 and cap nuts 22, 23 and are rotatable, upon slackening the rod 21, through 360 degrees, to vary the angle of inclination of the ports. The valve spool is provided with peripheral lands 30-32 and grooves 33 and 34 which control fluid flow by co-operation with resilient T-rings 47 (Fig. 4, not shown) mounted between rigid rings 45 press fitted into the inner periphery of an outer ring 44 provided with 0-rings 48 for sealing engagement between the valve body sections. Fluid from inlet 27c flows, via ports 36, through the clearance between spool member 16 and rod 21 and, upon energization of one of solenoid assemblies 24 or 25, spring seated closure 61 is lifted from pilot valve seat 63 and pressure fluid passes, via passage 66, in spool bearing 37, and passages 65, 64 and 70 to act upon pistons 39 or 40 to displace the valve spool. Upon de-energizing solenoid 24 or 25 the appropriate piston chamber is vented, via slots 59a in the armature 59 and passage 68, whereupon the valve spool may be displaced in the other direction upon energization of the other solenoid. The pilot valve may also be actuated manually or by mechanical or fluid pressure means.
Patent GB-1226528-A (GB)
IPC: C07D235/06
Filed: 1969-06-16
Abstract: 1,226,528. Benzimidazole compounds. L'OREAL. 16 June, 1969 [14 June, 1968], No. 16217/70. Divided out of 1,226,527. Heading C2C. Benzimidazole compounds of Formula I in which R 1 , R 2 , R 3  and R 5  which may be the same or different are hydrogen or a methyl group, with the proviso that at least one of R 1  and R 3  is hydrogen, R 4  is hydrogen or an alkyl radical of 1 to 4 carbon atoms, are prepared by reacting a compound of Formula II with hydrobromic acid by refluxing and optionally reacting it with an alkylating agent of formula R 4 Z in which Z is halogen. The compounds are usually obtained in the form of their hydrobromides after recrystallization from hydrobromic acid. The methoxybenzimidazoles of the Formula II are obtained by condensing a 2,3-diaminoanisole with formic acid and, if required, alkylating the product to obtain the 1-alkyl derivatives. 2,3 - Diamino - 4 - methylanisole dihydrochloride is obtained by Zn dust reduction of the corresponding dinitro compound in HCl.
Patent GB-1226540-A (GB)
IPC: G01J5/56
Filed: 1967-12-12
Abstract: 1,226,540. Radiation thermometer. MULLARD Ltd. Aug. 7, 1968 [Dec. 12, 1967], No.56405/67. Heading G1A. The temperature of a body is measured in an arrangement including a clockwork driven apertured disc 2 whereby radiation from the body passing through a light pipe 1 falls on a detector 4 alternately with radiation from the disc itself which is at ambient temperature, correction for the ambient being made by adding in unit 12 a second signal of the same frequency to the amplified output of detector 4 developed by the disc apertures between a gallium arsenide source 7 and a detector 8 and modified in respect of the ambient temperature by a temperature sensitive resistor. The temperature is displayed by a meter 14 after phase-sensitive rectification in unit 10. The detector 4 which may be of indium antimonids responds to infrared and a filter 3 is included in the path. A circuit in which the detector 4 is connected in series with the light source 7 and in which a Zener diode is included is described with reference to Fig. 2 (not shown). A full transistor circuit including a resistor for adjusting the symmetry of the correcting signal is also described. The arrangement is said to be suitable for measuring temperatures close to ambient and its use as a clinical thermometer is suggested.
Patent GB-1227312-A (GB)
IPC: B22D11/047
Filed: 1967-02-06
Abstract: 1,227,312. Continuous casting machines; mould linings. CONSOLIDUS Ltd. 3 May, 1968 [6 Feb., 1967], No. 5662/67. Heading B3F. A mould assembly for continuous casting comprises a graphite mould section 12 and an after-cooler-section 22 aligned with the mould section 12 and made of a material of higher thermal conductivity than graphite (copper, aluminium or alloys thereof). The after-cooler section 22 is coated with molybdenum metal or a mixture of molybdenum with its oxide and/or sulphide; the mould section 12 is uncoated. The after-cooler section 22 is provided with liquid coolant passages 23 and the mould section 12 has a copper jacket 20 with coolant passages 21. The temperature and flow rate of coolant to the coolant block 20 and the individual passages 23 may be controlled. A steel jacket 24 encloses the mould assembly. The cross-section of the after-cooler section 22 may be identical to that of the mould section 12, or to accommodate the contraction of the cast product on cooling, it may be smaller, or the after-cooler section may be tapered towards the outlet end. The mould assembly is connected to a melt holding vessel 10 by a frustoconical plug 13 which includes an embedded electric heating coil 15 surrounding the graphite mould section 12.
Patent GB-1229178-A (GB)
IPC: B65G15/34
Filed: 1970-03-19
Abstract: 1,229,178. Rubbing apron. DAYCO CORP. 19 March, 1970 [28 April, 1969], No. 13380/70. Headings DIN and D1R. A sliver rubbing apron comprises an inner layer 17 and an outer layer 20 of elastomeric material, and inextensible material 21 fixed between the layers and adjacent the edge portions thereof (Fig. 1) while keeping the central portion of the apron free of the inextensible material so as to define a comparatively extensible portion. The inner layer 17 can comprise rubber-impregnated rayon or nylon fabric. Preferably the outer layer 20 has a rectangular section 25 and a pair of integral extensions of reduced thickness. Stops 24 can be provided on the inner layer to prevent the apron shifting laterally on the rollers.
Patent GB-1232038-A (GB)
IPC: A01N47/30
Filed: 1968-08-07
Abstract: 1,232,038. N-aryl ureas. FARBENFABRIKEN BAYER A.G. 7 Aug., 1968 [12 Aug., 1967; 22 March, 1968], No. 37705/68. Heading C2C. [Also in Division A5] The invention relates to N-aryl ureas of a general formula in which R 1  is hydrogen, an alkyl radical with 1-4 carbon atoms or an alkenyl radical with 2-4 carbon atoms, and R 2  is an alkyl radical with 1-4 carbon atoms or an alkenyl radical with 2-4 carbon atoms. Compounds claimed per se are those in which R 1  and R 2  are both methyl and ethyl and in which R 1  is hydrogen and R 2  methyl. The compounds may be prepared by reacting 3-chloro-4-trifluoromethylphenyl isocyanate in the presence of a solvent with an amine of the formula HNR 1 R 2 . In an example 3-chloro-4-trifluoromethylphenyl isocyanate dissolved in chlorobenzine is reacted with dimethyl aniline to produce 3-chloro-4- trifluoromethylphenyl dimethyl urea.
Patent GB-1238249-A (GB)
IPC: H02P9/42
Filed: 1969-04-10
Abstract: 1,238,249. Automatic frequency control. SIEMENS A.G. 10 April, 1969 [13 April, 1968], No. 18561/69. Heading H3A. In an automatic frequency control system the frequency on line 7 is compared with a reference frequency in comparator 12, to produce a desired value current I* which is fed together with an actual value current I to regulators 14, 15 which control respectively the output from a frequency changer 5 and the excitation of a generator 4. In order to ensure that only one regulator is effective at a time either the desired value current to 14 is reduced by a bias current I Z , or the actual value current to 15 is reduced by a diode 21. Under normal conditions, the difference in the inputs to the two regulators ensures that the inverter 18 in converter 5 is adjusted to give maximum drive, and control is effected by converter 11. If the speed of motor 3 falls the conditions reverse, and the drive on 18 changes to effect control.
Patent GB-1250995-A (GB)
IPC: B06B1/08
Filed: 1969-06-10
Abstract: 1,250,995. Abrading. BENDIX CORP. 10 June, 1969 [11 June, 1968], No.29433/69. Heading B3D. A portable ultrasonic apparatus 20 for working on a workpiece 35 such as an aircraft wing comprises a housing 21, a magnetostrictive driving transducer 22, a toolholder 23 attached thereto, having a forming tool 24, a device 30 for supplying an abrasive slurry to the operative end of the tool 24, and means 66, 70, 74 for supplying slurry to the device 30 and leading it away therefrom. The device 30 may engage a fixture 51 having a tubular extension 53, which is held against the workpiece 35 for formation of an opening 36, pins 55, Fig. 8, mounted by a plate 52 engaging in groove 45 of the device 30, to lock the fixture 51 to the apparatus 20. Abrasive slurry from a tank 64 is pumped through apertures 33 in the device 30 via a supply conduit 70, reservoir 40 and selector valve 66, the latter allowing diversion of the flow direct to a return conduit 74 at the end of a forming operation. The tool is positioned against the workpiece 35 by sliding an inner housing sleeve 80 within the housing 21 by means of handles 145 within slots 150, being locked by screwing the handles 145 into tight engagement with the housing 21. The tool 24 is fed into the workpiece 35 by an electric motor 105, which rotates a nut 113, axially fixed in the sleeve 80, to advance a threaded rod 120, attached to the driving transducer 22 through a rotary actuator 106, operated e.g. pneumatically to oscillate the tool 24 about its axis during advance. Cooling fluid is circulated through a chamber 90 around the transducer 22 via conduits 133-136, 140-143, and an indicator 152 fixed to the housing 21 has a plunger 161 co-operating with a bracket 153 borne by the actuator 106 to monitor the depth of tool penetration; the bracket 153 also operates limit switches 171, 177 to limit tool movement. Feed of the tool is achieved by pressing a button 176 on a control panel 167, an electronic control circuit, Fig. 7 (not shown), being provided to reverse the motor 105 if e.g. an excessive current should indicate jamming of the tool, so that after a certain retraction, controlled by a timer (202) or the limit switch 171, the motor 105 stops, and the tool 24 may be manually or automatically re-actuated. A further button 192 is pressed for retraction on completion of operation. In a modification, Fig. 10 (not shown), the slurry is introduced through an axial conduit (212M) in the tool, a skirt (30M) around the tool engaging the workpiece through an intermediate O-ring (210M).
Patent GB-1251656-A (GB)
IPC: C04B35/63
Filed: 1968-08-26
Abstract: 1,251,656. Moulding plastic substances. MONSANTO CHEMICALS Ltd. 13 Aug., 1969 [26 Aug., 1968], No. 40665/68. Heading B5A. [Also in Division C3]  A ceramic article is produced by (a) making a porous ceramic mould by forming a slurry of a particulate refractory material is a hydrolysed alkyl silicate solution into the desired shape of the mould, the particulate refractory material being a uniform blend of a material having a particle size range of from - 16 to + 80 BSS mesh and a material having a particle size of less than 200 BSS mesh, the proportions by weight of the two refractory materials being from 2 : 3 to 3 : 2 and the two particulate refractories together forming at least 80% by weight of the total solids content of the slurry, gelling the shaped slurry to form a given mould, drying and firing the given mould; and (b) shaping theceramic article in the porous ceramic mould. The mould may be a block mould formed by pouring the slurry into a moulding box round a pattern, or a shell mould formed by applying alternate slurry and stucco coatings to a disposable pattern. The hydrolysed alkyl silicate solution is preferably prepared from ethyl silicates containing 39-43% by weight silica hydrolysed with 8-12% by weight, of the alkyl silicate, of water, in the presence of a catalytic amount of hydrochloric acid and an alcohol. The particulate refractory material may be a refractory oxide such as silica, alumina, zirconia; refractory aluminate or silicate minerals such as sillimanite, mullite, molochite, zircon or forsterite; and refractory clays such as calcined Ayrshire or Stourbridge clays of which molochite is the preferred.
Patent GB-1264156-A (GB)
IPC: B60T17/08
Filed: 1969-06-10
Abstract: 1,264,156. Brakes. KNORR-BREMSE G.m.b.H. 10 June, 1969 [21 June, 1968], No. 29451/69. Heading F2F.  A double brake cylinder for rail vehicles has an applying piston 13 acting through rod 18 to apply the brake, and a second piston 10 which adds its effort to piston 13 in proportion to the loading of the vehicle. Pressure from control valve 1 via pipe 5 moves the applying piston 13 against its return spring 19 in a rightward direction, drawing a threaded head-pin 14 with it. A freely running nut 35 on this pin rotates on bearings 38, 40 under the influence of spring 39, to follow up this motion until it is arrested by engagement between the nut and a shoulder 46 inside the piston 10. Normally, in the deenergized position shown, a valve 23, 26 prevents feed of pressure through pipe 2 to the piston 10, and moreover a further valve 23, 21 vents it to atmosphere. Rightward movement of the nut 35 on actuation of piston 13, reverses the conditions of these valves, by withdrawal of pin 14 which holds the valves in their normal condition against spring pressure. If the vehicle is loaded, pressure is supplied to pipe 2, which now, because valve 23, 26 is open and 23, 21 closed, acts on piston 10 to move it rightward. This movement engages the nut and shoulder surfaces 46, 47 to prevent the nut running back and the two pistons move together, the holding piston applying an additional force proportional to the load through the nut and pin 14 to the piston 13 and so to the rod 18.
Patent GB-1265524-A (GB)
IPC: B31B19/00
Filed: 1969-07-03
Abstract: 1,265,524. Envelope patch applying apparatus. BERKELEY MACHINE CO. 3 July, 1969 [15 July, 1968], No. 33597/69. Heading B5D. In order to apply window patches 41 to moving envelope blanks 2 having leading and trailing flaps and a patch receiving portion therebetween (Fig. 2), the speed but not the rate of succession of the blanks 2 is reduced so that adjacent flaps preferably partially overlap to leave the patch receiving area exposed (Fig. 2). Blanks 2 are fed from a suction cylinder 8 along a path 7 through a patch applying apparatus 1 comprising a blank speed reducer 10, a window gumming station 24 and a patch cutting and applying mechanism 37. The reducer 10 comprises a pair of transverse rollers 14 which co-operate with fork-mounted backing rollers 18 to brake the blanks received from a suction cylinder 9 and a compressed air nozzle 23 which raises the trailing flap of each blank to permit a squamaform blank lapping (Fig. 2). The station 24 comprising glue applying rollers 30, 29, 28 and the mechanism 37 comprising feeding 38, cut-off 40, transfer 42 and patch applying 36 mechanisms co-operate with a suction impression roller 32 for the application of patches 41. An underlying portion of a preceding or succeeding blank may extend into a window opening to permit greater overlap and the trailing edge of the preceding may ride below the leading edge of the succeeding blank.
Patent GB-1265668-A (GB)
IPC: B29C41/14
Filed: 1969-10-09
Abstract: 1,265,668. Dip moulding. D. M. INDUSTRIAL PLASTICS Ltd. 9 Oct., 1970 [9 Oct., 1969], No. 49562/69. Heading B5A. In a method of dip moulding a cup-shaped device which embraces a rod at one extremity 2, and seals against a surface at the other extremity 6, and includes a re-entrant portion 5, a mould is formed having an external shape corresponding to the internal shape of the device, and at least one air outlet is provided in the mould which opens into that part of the re-entrant forming portion which is uppermost when the mould is dipped so that entrapped air can escape. The mould is dipped in a bath of hardenable plastics material, e.g. P.V.C., for a sufficient period for a hardened plastics layer to be formed on the mould surface.
Patent GB-1266858-A (GB)
IPC: F16J15/08
Filed: 1968-03-29
Abstract: 1,266,858. Joint-making packing. JOSEPH LUCAS (INDUSTRIES) Ltd. 12 June, 1969 [29 March, 1968], No. 15169/68. Heading F2B. Joint packing between a pipe 10 and a vessel 11 comprises a pair of annular metal sealing elements each having a flange 15a, 16a sealingly secured to the pipe 10 or vessel 11 respectively and a flexible lip 17, 19, one lip 17 having a sharp edge 17a which engages the other lip 19 at a position spaced from the free edge thereof. The sealing elements 15, 16 may be of stainless steel with the edge 17a and portion of the lip 19 engaged thereby locally hardened or coated with a hard material.
Patent GB-1290233-A (GB)
IPC: G03B17/14
Filed: 1970-05-18
Abstract: 1290233 Interchangeable lens mounts ECLAIR INTERNATIONAL 18 May 1970 [23 May 1969] 23988/70 Heading G2A A camera interchangeable lens mount consists of a member 3 having a tapped aperture 4 for receiving a C-mounting and having a male screwthreaded portion 5 of larger diameter in combination with a mounting for lenses which is secured to the camera by screw engagement of a female screw-threaded portion 15 thereof to the male screw-threaded portion. Screw threaded portion 15 is formed on a ring 6 which slides on an intermediate member 8, being limited by faces 8a, 9b engaging faces 6a, 6b. A flanged sleeve 7 receives interchangeable lenses of any type. A centering pin 10 mounted on a bearing member 9 engages the bore 11 of a socket 12 secured to the camera and member 3.
Patent GB-1295499-A (GB)
IPC: B66F5/04
Filed: 1970-10-22
Abstract: 1295499 Valves DOMKRAFT AB NIKE 22 Oct 1970 [22 Oct 1969] 50347/70 Heading F2V [Also in Division B8] A valve comprises a helical spring 6 urged to a compressed state by fluid acting on a plug 5, the minimum fluid flow taking place between passage 1 and 7 when the plug 5 abuts the projection 3 whereby fluid is throttled through a groove 4. As applied to a jack, fluid is pumped from the passage into a working cylinder via passage 2 to raise a load. To lower the load the valve 8 is opened and fluid under pressure flows back to the tank via passage 9, the spring coil valve 6 serving to steady the lowering of the load.
Patent GB-1295971-A (GB)
IPC: C07C67/00
Filed: 1970-07-24
Abstract: 1295971 Production of diphenylcarboxylic acid esters TEIJIN Ltd 24 July 1970 [24 July 1969 25 July 1969 (2)] 36088/70 Heading C2C Diphenylcarboxylic acid esters are prepared by contacting in the liquid phase at at least 80‹ C. a benzenecarboxylic acid ester having at least one hydrogen atom bonded to the nuclear carbon atom with molecular oxygen at an oxygen partial pressure of at least 0À1 atmosphere in the presence of a catalyst comprising at least one palladium compound which is a palladium carboxylate or a #-diketo complex of palladium. The activity of the palladium catalysts may be further enhanced by incorporating thereinto a zirconium compound selected from the group consisting of zirconium carboxylates, zirconium oxycarboxylates, zirconium halides and zirconium oxyhalides.
Patent GB-1297517-A (GB)
IPC: G06M1/10
Filed: 1969-07-28
Abstract: 1297517 Counters JOSEPH LUCAS (INDUSTRIES) Ltd 28 April 1970 [28 July 1969] 37710/69 Heading G4D A strain gauge 13 responds to the production by a machine 11 of each component to advance a counter 15. When a clutch 12 is put into engagement it inhibits the resulting false count pulse by breaking the circuit between 13 and 15 or by decreasing the gain of an amplifier 14.
Patent GB-1301539-A (GB)
IPC: C22B3/46
Filed: 1970-06-30
Abstract: 1301539 Cementation of copper MONTECATINI EDISON SpA 30 June 1970 [1 July 1969] 31524/70 Heading C7D [Also in Division C1] Cu is produced by cementation with excess Fe at 20-40C. under a CO 2  or N 2  atmosphere from a solution containing Cu, Zn (as CuCl<SP>-</SP> 2  and ZnCl 4 <SP>2-</SP>), Ca, Cl, and minor amounts of Fe, As, Pb, Ca, Mn, Co, Ag, SO 4 . The solution has previously been treated to remove As by adding Fe<SP>++</SP> and base (see Division C1).
Patent GB-1304072-A (GB)
IPC: C08J7/043
Filed: 1970-04-29
Abstract: 1304072 Vacuum vapour-coating plastics IMPERIAL CHEMICAL INDUSTRIES Ltd 19 April 1971 [29 April 1970] 20657/70 Heading C7F A metallized organic thermoplastic film e.g. polypropylene or polyethylene terephthalate, is produced by coating one surface of the film with an adhesive resin containing an isocyanate-ended polyurethane of average molecular weight greater than 1000 and an organic polyisocyanate containing isocyanurate rings and having an average of more than two isocyanate groups per molecule, drying the resin coating on the film and depositing a layer of metal on the coated film surface e.g. by vacuum vapour deposition. Before resin coating, the film may be treated to improve its bonding properties, e.g. chemically, with hot HNO 3 , chromic acid, or O 3  or physically by corona discharge, ionising radiation or a flame. After resin coating the resin is dried at 60 C to 120C and the metals Zn, Al, Cu, Cr, Ni, Ag or Au are deposited on the film e.g. by vapour deposition. The examples describe coating polypropylene film with Al or Ag.
Patent GB-1309257-A (GB)
Title: Method of nitriding hollow bodies
IPC: C21D9/14
Filed: 1970-02-18
Abstract: 1309257 Nitriding tube bores MILLINGFORD ENG CO Ltd 18 Feb 1970 7902/70 Heading C7U The tube or other hollow body is heated in a furnace while a continuous controlled flow of nitriding gas is passed through it so that only the inner surface is exposed thereto. Treatment may be carried out for 12-100 hours at 470-700‹ C with the gas at a pressure of 15-25 lb/sq. in. In a particular embodiment tubes 1, 2, 3 are connected in series to a gas line 4 by threaded plugs 9 and connectors 12, the line being supplied with ammonia from source 5 through pressure reducing valve 6 and flowmeter 7.
Patent GB-1310928-A (GB)
Title: Retaining in place of filter beds of ion exchanger resins
IPC: B01J49/90
Filed: 1970-04-30
Abstract: 1310928 Ion exchange BAMAG VERFAHRENSTECHNIK GmbH 30 April 1970 20948/ 70 Heading B1J Prior to regeneration of an ion exchange bed B, a granular mass is forced by the passage of liquid from vessel D to the exchanger vessel A in which it occupies the entire volume above the exchange bed and also at least part of the pipe b through which it is supplied. The mass may also be in place above the exchange bed during charging and be returned to vessel D via pipe b during flushing operations which occur after a charging and regenerating operation. Regenerant is supplied from vessel E to vessel A via pipe g.