baber/WOPTO huggingface dataset:
Patent GB-1216827-A (GB)
Title: Improvements in or relating to methods of mounting electronic components on sheet-like supports
Inventor: BARNES BRYCE E
IPC: H01L23/31
Filed: 1969-04-25
Abstract: 1,216,827. Moulding plastic substances. HONEYWELL Inc. 25 April, 1969 [6 May, 1968], No. 21150/69. Heading B5A. [Also in Division H1] An electronic component is mounted on a sheet-like support by forming a perforation in the support, placing one face of the support against a surface composed of a "mould-release" material, inserting the component in the perforation so that its terminals lie against the mould-release surface, filling the remainder of the perforation with a hard-cure plastics material to secure the component and removing the support from the mould release surface when the plastics material has cured. As shown, Fig. 3, a ceramic circuit board 1 is placed on a plate 5 the upper surface 7 of which is coated with a mould-release material such as P.T.F.E., an integrated circuit chip 2 is arranged in a perforation in the circuit board and is retained by a positioning device 6 while the perforation is filled with epoxy resin 3 which is cold or hot cured. The assembly is then removed from the plate 5 and conductive tracks (4), e.g. of Al, are vapour deposited or sprayed through a mask to connect the terminals of the chip to conductive lands on the circuit board. The complete assembly may be coated with epoxy resin. The chip may also be positioned in the aperture by means of a sheet of transparent plastics material to which it is temporarily adhered, the sheet acting as the mould-release surface, and the chip may comprise a transistor or a resistor or capacitor instead of an integrated circuit. The support may comprise a thick or thin film circuit or a metal lead frame.
Patent GB-771643-A (GB)
Title: Improvements in mixing leafy or fibrous materials
IPC: A24B3/08
Filed: 1955-07-22
Abstract: 771,643. Mixing-machines. MULLER, H. U. 'July 22, 1955 [July 30, 1954], No. 21234/55. Class 86 Leak-like or fibrous materials, such as tobacco, are mixed by applying them in thin layers on discs 2...6 and removing the whole of the material uniformly and simultaneously from the discs 2...6 so that it falls freely and commingles in flow. The discsare mounted on a shaft 1 which is rotated by an electric motor 18 through gearing 21, 23. Each disc is charged with fibrous material from a delivery device 30 by operation of an appropriate flap 24.. .28 which directs the material to. a corresponding conveyer 9...13. The materials are cleared from the discs by fixing bands B which direct the materials to the edges of the discs as the latter revolve. Preferably a vibrating, guide-like frame is arranged in the path of the freely falling material. Fig. 7 shows a complete plant comprising six such mixing machines which are arranged to operate in sequence.
Patent GB-1261111-A (GB)
Title: New benzothiopyran derivatives and process for preparing them
Inventor: MALEN CHARLES
IPC: C07D335/06
Filed: 1969-04-25
Abstract: 1,261,111. Benzothiapyran derivatives. SCIENCE UNION ET CIE, SOC. FRANCAISE DE RECHERCHE MEDICALE. 24 April, 1970 [25 April, 1969], No. 21254/69. Heading C2C. Novel compounds of Formula I  (in which A is -CH 2 -, -CH(OH)- or -CO-, B is ethylene or vinylene which may be monosubstituted by a C 1-5  alkyl group, n is 2, 3 or 4, R is -NR 1 R 2 , where each of R 1  and R 2  is C 1-5  alkyl, or R 1  and R 2  together with the adjacent nitrogen atom, represents a pyrrolidino, morpholino, piperidino, hexamethyleneimino or 3- aza-bicylo[3,3,0]-3-octyl group which may be substituted by one or more C 1-5  alkyl groups, and R<SP>1</SP> is H or halogen) and their physiologically tolerable acid addition salts, are prepared by reacting a compound of Formula II with a compound of formula R-(CH 2 ) n -X (in which X is chlorine or bromine) and optionally salifying a resulting free base. Compounds I in which A is -CH 2 - or -CH(OH)- can also be prepared by reducing compounds I in which A is -CO-. 8-Hydroxy-thiochroman is prepared by reacting sodium orthomethoxythiophenate with sodium #-chloropropionate and neutralizing the product with HCl to form #-(orthomethoxyphenylmercapto)propionic acid, treating this compound with thionyl chloride to form the acid chloride, heating the chloride with AlCl 3  and hydrolysing the product with HCl to form 8-hydroxy-thiochroman-4-one and reducing this compound with hydrazine to give the desired compound. Pharmaceutical compositions having cardiovascular properties comprise a compound I, or a physiologically tolerable acid addition salt thereof, together with a pharmaceutical carrier.
Patent GB-437588-A (GB)
Title: An improved railway for use in roadmaking
IPC: E01C19/50
Filed: 1935-07-26
Abstract: 437,588. Railway for road-making. KRUPP AKT.-GES., F., Essen, Germany. July 26, 1935, Nos. 21268 and 21269. Convention date, July 31, 1934 and Feb. 9, 1935. [Class 104 (ii)] A track for supporting a road-making machine comprises a pair of angle members 1 laid lengthwise of the track and having fixed thereto at intervals pairs of vertical plates 4, between which are driven into the ground stakes 5 for anchoring the track. L-shaped wedges 7 driven through slots in the plates 4 secure the stakes. The running rails 9 are mounted on the upper edges of the plates 4. By making the sides of the member 1 of different lengths, the gauge of the track may be changed by turning the member 1 through 90 degrees and mounting the rail 10 on the other edges of the plates 4, the stakes being then placed in dotted position. In the form shown in Fig. 2, the stakes 13 have clearance between the plates 11 and are fixed by two wedges 14 driven through slots 15 in the plates.
Patent GB-1177537-A (GB)
Title: A Process for the Preparation of Polythioether Dithiols.
IPC: C07C/
Filed: 1967-05-08
Abstract: 1,177,537. Preparation of polythioether dithiols. SOC. NATIONALE DES PETROLES D'AQUITAINE. 8 May, 1967 [9 May, 1966 (2)], No. 21270/67. Heading C2C. A process for the production of a polythioether dithiol or dithiols of formula HS(CH 2 S) n H, where n is 2-31, comprises contacting hydrogen sulphide with one or more thioether diols of formula HO(CH 2 S) m CH 2 OH, where m is 1-30, in an aqueous medium for the time necessary to convert all the hydroxyl groups to mercapto groups. Examples are given where n is 2-5.
Patent GB-1111741-A (GB)
Title: Apparatus and method for feeding slurry to a board forming machine
Inventor: STAVER ELLSWORTH
IPC: D21F1/02
Filed: 1965-05-19
Abstract: 1,111,741. Board forming machines; paperboard. GREFCO Inc. 19 May, 1965, No. 21274/65. Headings D2A and D2B. In a process for feeding a slurry of uniform composition evenly across the width of a board-forming machine, the slurry is divided into a plurality of parallel separate streams-- as by a plurality of partitions 39-which are recombined into a lesser number of streams of equal volume in a repetitive series arrangement sequentially different from that of the splitting. As shown these latter streams number two but may be more than two in number and each of these streams may be subjected to further splitting and recombining step or steps and the resulting streams are fed into a headbox 10 having a rotating vaned rotor and a slice exit 12. The spaces between adjacent partitions 39 open into conduit 46 or 47 so that adjacent streams flow into different conduits. One or more of the partitions may have adjustable vanes on top, or the partitions themselves may be adjustably positioned so that the volumes of the streams in conduits 46, 47 can be made equal. The slurry flows from the headbox onto a lower belt having a plurality of suction boxes and is compressed between the lower belt and an upper belt. The web formed is cut by a wet saw and the cut pieces dried. The above process may be used to form a board containing 10-50% organic or inorganic fibre, preferably shredded or repulped newsprint; 40-80% expanded perlite, or other expanded minerals and glasses, or lightweight inorganic or organic, synthetic or natural beads and spheres; up to 30% water proofing agent, for example asphalt and/or waxes, linseed and drying oils, silicone resins and various stearates and oleates; and alum-if an asphalt emulsion is used-, plasticizers, thickeners, foaming agents, gels, surfactants, colouring agents, and lime, or sodium or potassium hydroxide. The proofing agent may be added as a finely divided solid to the slurry or sprayed on to one of the other components.
Patent GB-445854-A (GB)
Title: Process for improving the quality of inferior kinds of natural cork
IPC: B27K7/00
Filed: 1934-07-20
Abstract: Pores and cracks in inferior cork are filled with cork dust agglomerated with an aqueous dispersion of rubber, such as latex, which may be modified by the addition of a solvent or weak solution of rubber, casein, albumen, dextrin, or an aqueous dispersion of viscose or cellulose.  Stoppers, floats, &c. may be thus treated by introducing the composition under pressure while evacuating air, and drying them in a revolving drum in the presence of dry cork dust.
Patent GB-776852-A (GB)
Title: Improvements in sliding arch connections
IPC: E21D11/22
Filed: 1955-07-22
Abstract: 776,852. Arches. LINSINGEN M. VON, [trading as BOCHUMER EISENHUTTE HEINTZMANN & CO.]. July 22, 1955 [July 30, 1954], No. 21325/55. Class 20(4) Segments 1 and 2 of an arch are slidably connected by a clamping member 5 in the form of a split-ring, the member 5 having inturned flanges 6 against which the edges of the segment 1 abut 4 lugs 8 which are secured together by a bolt 9, the arrangement being such that the inclined surfaces 7 of the member 5 exert a wedging action on teh under surfaces of the segments 1 as shown. he clamping member is preferably made of material, e.g. sheet metal, such that it has some inherent resilience. The arch segments may also be connected by a stirrup-like connecting device (not shown) and members 5 without the flanges 6 may be used at points other than where the segments overlap.
Patent GB-859951-A (GB)
Title: Improvements in or relating to launching and receiving of surface waves of electro-magnetic energy
IPC: H01P3/10
Filed: 1957-07-05
Abstract: 859,951. Launching and receiving surface waves. SURFACE CONDUCTION Inc. July 5, 1957 [July 13, 1956], No. 21333/57. Class 40(8). Axially symmetrical T.M. surface waves are received or transmitted along an elongated conductor or from an electromagnetic cavity which is wave intransmissive at one end and wave transmissive at the other, and which is coupled at the former end to one end of said conductor extending coaxially into said cavity; means being provided to set up an oscillating electromagnetic field in said cavity. An end of surface conductor 3 forms the central conductor 2 of coaxial cavity 1 which has a cylindrical section 13 and side walls 6 and 4, the latter being of wire mesh. Dimensions L and D are suitably chosen and oscillations are set up in the cavity between walls 4 and 6 by loop 7 and some of the wave energy passes wall 4 and is propagated along line 3; the diameter of the surface wave field being substantially equal to D. In the embodiment of Fig. 5 (not shown) the cavity is not resonant and has only one end wall which is symmetrically slotted and provides means for coupling a coaxial line to the cavity. Specification 718,597 is referred to.
Patent GB-1043869-A (GB)
Title: A process for the preparation of a ª‰-halo sulphone
IPC: C07C315/00
Filed: 1965-05-20
Abstract: b -Halosulphones are prepared by reacting a sulphonyl halide with an olefinic compound containing at least one carbon-carbon double bond which is not conjugated with non-aromatic unsaturation in the presence of at least one iron compound as catalyst, not more than 2% by weight of water being present in the reaction mixture.  The preferred catalyst is ferrous chloride.
Patent GB-597501-A (GB)
Title: Improvements in or relating to apparatus for bringing gases into contact with solids
IPC: B01J8/00
Filed: 1945-08-22
Abstract: <PICT:0597501/III/1> Apparatus for bringing gases into contact with solids (e.g., catalytic material) comprises two or more chambers 10 separated by grids or gratings (made for example of nickel-chromium alloy), and provided with valved ducts 16, 17 for introduction and removal of the solid.  Flow of gas is indicated by the arrows.  The chambers may be square in cross-section with one corner vertically above the diagonally opposite corner.  Gas-tight hoppers and receivers may be associated with the ducts 16, 17, and means may be provided for introducing another gas at an intermediate stage.  The chambers may be maintained at different temperatures and provision made for disturbing the solid material.  The apparatus may be used in the removal of organic sulphur compounds from coal gas by passage through a nickel subsulphide catalyst, and also for the preparation of the catalyst for this process by reducing china clay pellets containing deposited nickel sulphate.
Patent GB-1330769-A (GB)
Title: Information detection
IPC: G08C15/00
Filed: 1971-04-19
Abstract: 1330769 Remote meter reading HITACHI Ltd and TOKYO ELECTRIC POWER CO 19 April 1971 [3 April 1970] 21570/71 Heading G4H Utility meters connected to a common signalling line, such as electricity meters connected to a power line, briefly connect a resonance circuit, unique to a meter, to the line upon each increment of the utility measured, whereby a control accounting station by sending a periodic frequency sweep signal along the line receives signals reflected back from those resonance circuits connected to the line, the time of arrival of the received signals within the period of the sweep identifying the incremented meters. Pulses marking the possible arrival times of the signals are generated in the receiver by a duplicate set of resonance circuits. Hybrid circuits are included in the receiver to avoid erroneous mixing of signals. At the control station (Fig. 5) the frequency sweep signal from generator 165 is distributed to various line receivers 15 by line concentrator 13, and passes to an output line 152 via hybrid circuits 154, 153. A frequency signal reflected from a resonance circuit is directed by hybrid circuit 153 to a noise limiter 155 and on to a ring modulator 156 also receiving sweep signal from hybrid circuit 154. The modulator produces a positive and negative pulse as the frequency sweeps through the resonance frequency of a connected resonant circuit. Gate 161 is opened at instances when reflected waves can be received by supplying the sweep signal to a duplicate set of resonance circuits 157 and generating gating pulses from ring modulator 160. The pulses passed by the gate are accumulated centrally in customer account-stores.
Patent GB-458937-A (GB)
Title: Improvements in or connected with looms for weaving
IPC: D03J1/00
Filed: 1935-07-30
Abstract: 458,937. Looms. ELLISON, F., 5, Warren Avenue, Eldwick, Bingley, Yorkshire. July 30, 1935, No. 21576. [Class 142 (ii)] [See also Group XI] An illuminated screen or deflector S having one or more hoods S<1> containing one or more concealed lights is placed behind loom reeds, healds, &c. whereby their correctness of assembly may be judged and piecing- up of broken threads may be facilitated. The screen may be curved or hook-shaped and have a reflecting surface which may be flat or partly curved. It may be mounted in a casing having side wings F<1> and be suspended by hooks or supported by an adjustable rod from a stand. The hood may have a frosted or dulled window or an open gap and the lower part of the screen may have a gap for the escape of fluff.
Patent GB-1352372-A (GB)
Title: Watermiscible preparation and compositions containing the same
IPC: A61K47/02
Filed: 1971-04-19
Abstract: 1352372 Composition comprising a polyalkylene glycol and silicon dioxide DSO "PHARMAHIM" 19 April 1971 [13 Feb 1970] 21593/71 Heading A5B An anhydrous water-miscible preparation for use as a carrier, a diluent or an excipient comprises a polyalkylene glycol and silicon dioxide, the polyalkylene glycol constituting the major proportion by weight of the preparation. The preparations may be used in comestible, hygienic, pharmaceutical and cosmetic compositions such as lotions, creams, gels and dentifrices.
Patent GB-685840-A (GB)
Title: Improvements in or relating to the manufacture of polyguanamines
Filed: 1949-08-19
Abstract: The invention comprises polyguanamines containing more than two (especially three) guanamine groups, and the manufacture of polyguanamines (including diguanamines) by heating polynitriles with two or more molecular proportions of dicyandiamide, at least 40 per cent of the dicyandiamide undergoing reaction being used in the form of a salt (preferably an alkali or alkaline-earth metal salt), which salt may be formed in situ (e.g. by reacting the dicyandiamide with an alkali or alkaline-earth metal or a salt-forming derivative thereof).  The reaction is advantageously carried out at 50-200 DEG C. (e.g. at 100-200 DEG  C. for the less reactive and 75-80 DEG  C. for the more reactive nitriles), in the presence of a liquid solvent or diluent (preferably a liquid which dissolves at least partially all the components, e.g. a hydroxylic solvent).  In examples: (1) dicyandiamide is heated with adiponitrile in a solution of sodium in ethylene glycol; (2) adiponitrile is heated with dicyandiamide and its preformed potassium salt in ethylene glycol; (3) p-xylylene dicyanide is treated as in (1); (4) dicyandiamide is heated with adiponitrile in a solution of caustic soda in ethylene glycol; (5) sebaconitrile is heated with preformed sodium salt of dicyandiamide (containing some free dicyandiamide) in ethylene glycol; (6) malononitrile is treated as in (2); (7)-(9) phthalonitrile, terephthalonitrile and 4-phenyl-4-cyanopimelonitrile are treated as in (5); (10) dicyandiamide is heated with adiponitrile in a solution of caustic soda in ethylene glycol and benzene; (11) adiponitrile is heated with a preformed potassium salt of dicyandiamide (containing some free dicyandiamide) in benzyl alcohol, and (12) in decahydronaphthalene; (13) adiponitrile is treated as in (5); (14) dicyandiamide is heated with adiponitrile, triethanolamine and calcium hydroxide in toluene; (15) 1 : 1 : 1-tris-(21-cyanoethyl)-acetone is heated with dicyandiamide and its sodium salt in ethylene glycol to produce 1 : 1 : 1 - tris - [21 - (211 : 411 - diamino - 111 : 311 : 511 - triazinyl) - ethyl] - acetone. Additional starting materials specified are 1 : 4-dicyanobutene - 2, 4 - methyl - 4 - acetylpimelonitrile, bis-(4-cyanobutyl) ether, isophthalonitrile, homophthalonitrile, dicyanonaphthalenes, 4 : 41 - dicyanodiphenyl, 4 : 41 - dicyanostilbene, 4 : 41 - dicyanobenzophenone, 2 - phenylglutaronitrile, cyclohexane - 1 : 4 - dicarboxylic acid nitrile, 4-(41-cyanophenyl)-cyclohexanecarboxylic acid nitrile, trimesonitrile, 1 : 1 : 1 - tris - (21 - cyanoethyl) - acetophenone and 2 : 2 : 6 : 6-tetrakis-(21-cyanoethyl)-cyclohexanone. Specification 571,340, [Group III], and U.S.A. Specification 2,302,162 are referred to.
Patent GB-479420-A (GB)
Title: Improvements in and relating to electron-optical reproduction
IPC: H01J29/64
Filed: 1937-08-05
Abstract: 479,420. Cathode-ray tubes. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 5, 1937, No. 21632. Convention date, Aug. 5, 1936. [Class 39 (i)] A coil forming an electron lens is accompanied on the side remote from the object by a second coil producing a field in the opposite direction to that of the first coil, so that the curve representing the distribution of the field along the axis of the lens slopes sharply to zero on the side towards the object. The Figure shows the graph of such a field, the curves 4 and 5 representing the fields of the main and auxiliary coils respectively, and the curve 6 the resultant field. It is stated that such an arrangement' increases the possible magnification. More than one such auxiliary coil may be employed, and one may be placed on the same side of the main coil as the object.
Patent GB-1285816-A (GB)
Title: Calcining limestone
IPC: C04B2/02
Filed: 1970-05-05
Abstract: 1285816 Calcining limestone DORR OLIVER Inc 5 May 1970 [5 May 1969] 21640/70 Heading C1A Finely divided limestone is preheated and calcined, the preheating being effected in a fluidized bed reactor 10 by spent gases from the calcining stage 30; fines resulting from the decrepitation of limestone in the preheating stage are reused by recovering them at a temperature above 200 C., compacting them to produce briquettes at 70, comminuting the briquettes at 80 to produce granules which are recycled to the preheater. The gases leaving the preheater may be cooled by a water spray 46. Fine dust, not trapped in cyclone 50, may be recovered in baghouse 60.
Patent GB-277166-A (GB)
Title: Improvements in or relating to colour-estimating apparatus
IPC: G01N21/29
Filed: 1926-09-03
Abstract: 277,166. Tintometer, Ltd., Lovibond, F. E., and Fawcett, G. S. Sept. 3, 1926. Colours, comparing.-Colour-testing apparatus, more particularly for observing and measuring the changes of colour occurring in a therapeutic pastille, comprises a sighting tube 15 carrying a rotatable disc 18 mounted eccentrically at its lower end. Two series of apertures arranged in pairs are provided in the disc 18 and adapted to register with two holes 19, 20 in the base 14 of the tube 15. Between the apertures in the outer row are fitted numbered discs 21 observable through a hole in the base 14 outside the tube 15 Transparent colour screens are fitted in the outer row of holes and the pastille 24 to be observed is carried in a holder 28 in the tray 25 pivoted to the support 13. A standard white card 30 slides in grooves and has an aperture through which the pastille may be observed. The disc 18 is rotated until the appropriate colour screen is observed in the aperture 19 adjacent to that in which the specimen appears and the number indicating the screen is seen in the hole in the plate 14. The observation is carried out under white light which is directed on to the card 30 by a lamp.
Patent GB-1049813-A (GB)
Title: A process for purifying cellulase extracts
Inventor: TANAKA ICHIRO
IPC: C12N9/42
Filed: 1964-05-26
Abstract: Cellulase preparations of high purity are obtained from wheat bran cultures of micro-organisms of the Aspergillus species by first subjecting the culture to drying and then extracting with water or dilute aqueous acid, preferably 1 10 to 1 50 M lactic, acetic or hydrochloric acid to produce a solution from which enzyme preparations of high purity may be obtained by precipitation with a hydrophilic organic solvent, e.g. ethanol.
Patent GB-452609-A (GB)
Title: Improvements in or relating to fuel injection pumps
IPC: F02M59/48
Filed: 1935-07-31
Abstract: 452,609. Cams and tappets. AUTOMOTIVE PRODUCTS CO., Ltd., Brock House, Langham Street, and TRAPP, G. J., 105, Aylward Road, Merton Park, both in London. July 31, 1935, Nos. 21753/35 and 8671/36. [Class 80 (iii)] [See also Group XXVIII] Cam followers 35 ... 38, e.g. for use in pumps, engines, &c. are mounted in a housing 26 supported in guides 29 arranged transversely to the follower travel for ease of assembly. The guiding walls may be of cylindrical form, in which case the housing is prevented from rotating by a bolt. Endwise movement of the housing is normally prevented by members 16, 17 carrying the cam-shaft bearings. Specification 448,550 is referred to.