baber/WOPTO huggingface dataset:
Patent GB-1382882-A (GB)
Title: Mixing liquid for dental filling materials
IPC: A61K6/083
Filed: 1972-01-14
Abstract: 1382882 Mixing liquid for dental filling material ESPE FABRIK PHARMAZEUTISCHER PRAPARATE GmbH 14 Jan 1972 [15 Jan 1971] 40387/74 Divided out of 1382881 Heading C3P A mixing liquid for admixture with a dental cement powder to form a dental filling material which is harmless to dental pulp, comprises an aqueous solution containing from 35% to 65% by weight of one or more polymers containing more than 50% on a molar basis of units of one or more unsaturated α,#-dicarboxylic acids, the solution having a viscosity of from 0À5 to 3000 poise at 25‹ C. Suitable polymers are polymaleic acid, polyitaconic acid, a maleic acid/ itaconic acid copolymer and copolymers of unsaturated α,#-dicarboxylic acids with unsaturated monocarboxylic acids. The polymers may also contain up to 10 mol. per cent of monomers free of carboxyl groups. The mixing liquids may also contain polyacrylic acid and customary additives, e.g. a bacteriostatic additive.
Patent GB-1400471-A (GB)
Title: Apparatus for automatic computation of cardiothoracic ratio
IPC: G01B11/24
Filed: 1972-09-01
Abstract: 1400471 Photo-electric analysis of x-ray pictures MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 1 Sept 1972 [3 Sept 1971] 40712/72 Heading G1A [Also in Division H3] Apparatus for automatically measuring the cardiothoracic ratio comprises means 822, Fig. 8 which may be a vidicon tube or a standard T.V. camera, for scanning an x-ray chest image 810 along a parallel raster perpendicular to the median line of the image and converting the brightness of the scan to an electrical signal, and data processing means 830 for computing the cardiothoracic ratio and for displaying or recording this value at 840 the data processing means being adapted to infer intersections between the images of boundary lines of the thorax and the heart and the raster lines, and being adapted to correct data apparently erroneous on the basis of the previously scanned points. The cardiothoracic ratio is defined as (13 + 14/15)x 100% (see Fig. 1) where 13-15 represent maximum values obtained from the scan. In Fig. 1 the lungs are shown at 12, 12' and the heart at 11. Referring again to Fig. 8 the output from the scanning means 822 is amplified at 824 and passed through a sample and hold circuit 825 to an A/D converter. The sample and hold circuit 825 and the deflection circuit 82B of the scanner are both controlled by a circuit 827 such that the raster of scanning lines of the device 822 is from top to bottom of the x-ray image, i.e. parallel to the median line of the chest and the samples are taken at a plurality of corresponding points along each scan line to thereby simulate scan lines in a perpendicular direction. The feed of x-ray film images to the optical system may be automatic and two displaced photo-cells may be employed to enable the film to be stopped in the precise position. The Specification gives details of the approach to analyzing the image and of the erroneous correction procedure but provides no details of the equipment 830 used to effect this.
Patent GB-882050-A (GB)
Title: Improved valve spring arrangement for an internal combustion engine
IPC: F01L3/10
Filed: 1959-12-01
Abstract: 882,050. Valve gear; lubricating; cooling. MOTORENFABRIK HATZ G.m.b.H. Dec. 1, 1959 [March 9, 1959], No. 40769/59. Classes 7(2) and 7(6). A diesel engine poppet valve spring 6, Fig. 1, engages a free marginal edge 8b of a spring plate 8, which is supported, directly or indirectly at an inner annular surface 8a from a supporting surface of a fixed bearing in a valve housing and encloses a hollow cavity 9 which communicates with cooling medium in chamber 2c by at least one channel 2b<SP>1</SP>, Fig. 2. The spring plate 8 may be of a deep drawing sheet metal and channels 2b<SP>1</SP> may be flats formed during casting. A flanged guide bush 4 may be fitted. The surfaces of the spring plate 8 are cooled by the mixture of cooling air and lubricant present in the chamber 2c.
Patent GB-1511080-A (GB)
Title: Method of and apparatus for texturizing continuous filaments
IPC: D02G1/16
Filed: 1976-10-01
Abstract: 1511080 Crimping filaments by impact ALLIED CHEMICAL CORP 1 Oct 1976 [2 Oct 19751 40774/76 Addition to 1497176 Heading D1F Parent Specification describes directing filaments 16 in a stream 26 of fluid against a barrier (e.g. belt 20) disposed in chamber 12 to crimp the filaments, allowing most of the fluid to escape. Transporting the filaments through chamber 12 by the continuous movement of a surface 20 to form a yarn plug 38 and force the filaments against the end of the plug to further crimp the filaments. Preferably the fluid is heated. The present specification discloses applying a second stream 52 of heated fluid downstream of the first fluid stream 26 (which is also heated) to set the crimps.
Patent GB-1512786-A (GB)
Title: Sealing finishing and guiding strips
IPC: B60R13/06
Filed: 1974-09-19
Abstract: 1512786 Sealing strip DRAFTEX DEVELOPMENT AG 3 Sept 1975 [19 Sept 1974] 40960/74 Heading E1J A sealing strip comprises two L-shaped members 5, 6 at least one of which has a metal core 8, 16 and which interlock to form a channel shaped strip. The members may be of plastics or rubber. A compressible seal member 18 may be attached. One member 5 may have a lip 10 and a bent-over end 14 to engage the other member 6. The strips may have ribs 15, 24 which may be of different hardnesses. The strip may be formed into a closed loop and used as a weather seal on the flange of a vehicle door opening; assembly is made easier because the two parts can be separated and snapped together when in position.
Patent GB-1390927-A (GB)
Title: Nuts and screw-threaded bushes
IPC: F16B37/00
Filed: 1971-09-04
Abstract: 1390927 Threaded fasteners D PERRIN 31 Aug 1972 [4 Sept 1971] 41328/71 Heading F2H A nut 20, or screw threaded bush (Figs. 5-8, not shown), is formed at one or each end with a single scavenging face 21 lying substantially in a plane including the axis of the bore and lying within the depth of the nut or bush to the extent of one thread pitch, the face serving to scavenge debris from a male-thread which the nut or bush is adapted to engage. A portion of the thread behind the face 21 may be removed as at 22 to avoid the collection of debris. In the case of a bush the bush (30) may be formed in two halves releasably held together by screws (34).
Patent GB-1447067-A (GB)
Title: Solution of ethyl-auramine hydrochloride
IPC: C09D11/02
Filed: 1973-09-04
Abstract: 1447067 Dyestuff solutions PRODUITS CHIMIQUES UGINE KUHLMANN 4 Sept 1973 [5 Sept, 1972] 41455/73 Heading D1B Solutions of ethylauramine hydrochloride in thiodiglycol are used to dye paper, textile fibres and to colour printing inks. The solutions contain at least 15% by weight of the dye and may be diluted with water.
Patent GB-1107169-A (GB)
Title: Improvements in or relating to the production of vinyl chloride
IPC: C07C17/00
Filed: 1966-09-19
Abstract: A gas stream comprising vinyl chloride, hydrogen chloride and 1,2-dichloroethane produced by the decomposition of 1,2-dichloroethane, is quenched by introducing it into a liquid body of hydrocarbon chloride at least 8 inches below the surface thereof, passing it through the liquid body and into contact with further liquid hydrocarbon chloride in a contact zone, the gas stream from the contact zone being condensed at or above the dew point of vinyl chloride and hydrogen chloride to recover a hydrocarbon chloride condensate.  The quench liquid, e.g. 1,2-dichloroethane may be contained in the lower part of a tower, the upper part of which constitutes the contact zone in further quench liquid is showered upon the rising gas stream.
Patent GB-1359297-A (GB)
Title: Manufacture of diaphragm units
IPC: G01F3/22
Filed: 1970-08-29
Abstract: 1359297 Moulding diaphragms UNITED GAS INDUSTRIES Ltd 12 Aug 1971 [29 Aug 1970] 41701/70 Heading B5A [Also in Division G1] A double pan diaphragm unit for a gas meter is assembled by vacuum forming a coated fabric blank 1 in a mould 2 having a clamping ring 6, on to a reinforcing plate 4 located by pins 5, curing the blank and subsequently fitting a further reinforcing plate 8 together with a metal pan 10 which is lowered by a jig 12 and bonded to the flange of the blank. The mould 2 is then removed from the assembly so that a flag rod, and a second metal pan 14 can be bonded to the opposite side of the diaphragm. Sockets can be disposed between the pans and the diaphragm. In Fig. 3, not shown, reinforcing plates are assembled on the diaphragm blank before forming.
Patent GB-1354978-A (GB)
Title: Magnetic ledger cards
IPC: G06K19/02
Filed: 1971-09-08
Abstract: 1354978 Laminates BADISCHE ANILIN- & SODAFABRIK AG 8 Sept 1971 [9 Sept 1970] 41798/71 Heading B5N [Also in Division B2] A magnetic ledger card consists of a base comprising a layer of plastics material, e.g. stretched or unstretched polyvinyl chloride, having a thickness of 20-160 Á sandwiched between two layers of paper each having a thickness of 20-70 Á, which is provided with a magnetic coating on one or both outer surfaces. The paper used may be wood-free typewriting paper weighing 30-50 g./m.<SP>2</SP>. Lamination of polyvinyl chloride sheeting between two layers of paper may be effected continuously at roll temperatures of 110-170 C., a nip pressure of 15-28 kg./cm.<SP>2</SP> and at a speed of 10-60 m./min., or the bases may be made individually in presses under these conditions. Hot melt adhesives, e.g. a copolymer containing 20-40% by weight of vinyl chloride, 20-40% by weight of vinyl acetate and 20-40% by weight of nbutyl acrylate, vinylidene chloride polymers, polyacrylates and synthetic rubber may be applied to both surfaces of the plastics sheet at a thickness of 0À3-1À8 Á. The magnetic coating may comprise a dispersion of 3 parts by weight of magnetic pigment, e.g. gamma iron (III) oxide, magnetite or ferromagnetic chromium dioxide, 1 part by weight of vinyl chloride/vinyl acetate copolymer and 6 parts by weight of solvent, e.g. ethyl acetate, and may have a thickness of 10-30 Á after drying at elevated temperature. The magnetic coating may coverthe entire surface of the base or may be in the form of a strip or strips parallel to the long sides of the magnetic ledger card. At least one of the longitudinal sides of the card may be perforated.
Patent GB-1055415-A (GB)
Title: Improvements relating to double-glazed windows
IPC: E06B3/677
Filed: 1964-10-14
Abstract: 1,055,415. Double glazing. C. P. F. JONES. Oct. 8, 1965 [Oct. 16, 1964], No. 41824/64. Heading E1R. To compensate for increased pressure within the sealed space 2 of a double glazed window, due to increased ambient temperature and to eliminate damage to the sealing joints caused thereby, the space 2 communicates through a conduit 5 with an expansion chamber 6 which can expand and contract in accordance with the pressure, e.g. a rubber &c, expansible tube or bag or a bellows device. A chamber 7 containing siliga gel &c. may be inserted in the conduit 5.
Patent GB-1454850-A (GB)
Title: Process for the enzymatic isomerisation of glucose to levulose
IPC: C12P19/24
Filed: 1974-09-26
Abstract: 1454850 Insolubilized glucose isomerase RHONE-POULENC SA 26 Sept 1973 [27 Sept 1973] 41963/74 Heading C3H [Also in Division C2] Insolubilized glucose isomerase is obtained by contacting a cation exchange resin containing sulphonic or carboxylic acid groups and containing Mg<SP>++</SP> or Mg<SP>++</SP> and Co<SP>++</SP> cations fixed thereto, with a glucose isomerase so that said glucose isomerase becomes combined with the fixed cations.
Patent GB-1163658-A (GB)
Title: Improvements in Horizontal Hydraulic Extrusion Presses, Including Tube Presses.
IPC: B21C23/21
Filed: 1967-09-14
Abstract: 1,163,658. Extruding; billet piercing. SCHLOEMANN A.G. 14 Sept., 1967 [14 Sept., 1966], No. 41984/67. Headings B3H and B3P. A horizontal hydraulic extrusion press has four columns 3 connecting the bolster 2 with the stationary cylinder crosshead 1 which carries four extrusion cylinders 4a, 4b, and a billet container 15 movable towards and from the bolster by rods 16 passing through the crosshead 1 and actuated by cylinders 20, 23. The extrusion cylinders 4b are of smaller diameter than the cylinders 4a to permit passages 18 for the rods 16. These rods are connected to a crossbeam 17 actuated on its forward stroke by pistons 21 in cylinders 20 and on its retraction stroke by cylinders 23. The four main extrusion pistons are connected to a crossbeam 5 carrying the press ram 6; this crossbeam is also connected by rods 7 to retraction cylinders 13. A billet piercing mandrel is actuated by a cylinder 8 and retracted by cylinders 9. Pressure liquid for the cylinders 8, 9 is supplied through stationary tubular pistons 24 and sliding cylinders 25.
Patent GB-1463142-A (GB)
Title: Radio frequency digital fourier analyzer
IPC: G01R23/18
Filed: 1974-09-27
Abstract: 1463142 Spectrum and fourier analysis SINGER CO 27 Sept 1974 [31 Oct 1973] 42113/74 Heading G1U In a spectrum and Fourier analysis system, an input signal is passed via a frequency changer to a sampling A/D converter, and the resulting samples are entered into a digital computer for evaluation of the Fourier transform of the input signal, for example using the Cooley-Tookey algorithm. The system described includes two parallel channels so that from the Fourier transform various other functions, such as the cross-correlation function, can also be calculated. The Specification discusses possible uses of the system and lists suitable units, e.g. a suitable digital processor, from which it may be constructed.
Patent GB-1205956-A (GB)
Title: Novel 1-phenoxy-2-aminoalkanes
IPC: A61K31/135
Filed: 1967-09-15
Abstract: 1,205,956. Substituted 2-amino-1-phenoxyalkanes. BOEHRINGER INGELHEIM G.m.b.H. 15 Sept., 1967 [16 Sept., 1966; 27 Oct., 1966; 14 Dec., 1966; 13 Jan., 1967; 17 Aug., 1967], No. 42127/67. Heading C2C. [Also in Division A5] The invention comprises compounds of formula wherein R is C 1-3  alkyl, R 1  is H, Me or Et, and R 2 -R 6  are H or C 1-5  alkyl (at least 1 of R 1 - R 6  being alkyl), provided that when R 1  is H and R 4  is H or Me, then at least 1 of R 2 -R 6  is alkyl. These compounds are prepared from (1) their N-substituted derivatives, by removal of the N-attached groups; (2) the corresponding phenol or its salt, by reaction with RR 1 CHX, where X is CH(NH 2 )CH 2 -Y (Y being a reactive ester group) or 2-aziridinyl; (3) the corresponding imine, oxime or hydrazone, by reduction. Racemates of the above formula may be resolved using D-3-bromocamphor-8- sulphonic acid or dibenzoyl-D-tartaric acid.
Patent GB-946913-A (GB)
Title: Alternator
IPC: H02K5/14
Filed: 1962-11-08
Abstract: 946,913. Making dynamo-electric machines. FORD MOTOR CO. Ltd. Nov. 8, 1962 [Dec. 27, 1961], No. 42220/62. Heading B3A. [Also in Division H2] Brushes 63, 64 are held spaced from slip rings 27, 28 during assembly of an alternator, by a rod 93 which is subsequently removed to permit springs 72 to cause the brushes to engage the rings.
Patent GB-1031296-A (GB)
Title: Improvements in or relating to information storage apparatus employing magnetic storage elements
Inventor: JAMES JOHN BERNARD
IPC: G11C5/06
Filed: 1962-11-08
Abstract: 1,031,296. Circuits employing bi-stable magnetic elements. INTERNATIONAL COMPUTERS & TABULATORS Ltd. Oct. 30, 1963 [Nov. 8, 1962], No. 42240/62. Heading H3B. In a storage address selection arrangement, conductive loops 4 each magnetically coupled to a plurality of magnetic storage elements, are connected across conductive elements 7, each passing through a magnetic switch core 5. A switch core is selected by coincident currents applied to conductors 6, 7 to energize a word conductor 4 in a thin-film matrix. In one arrangement (Fig. 2), two substrates 8 carrying thin magnetic films 10 are screwed together back-to-back. The substrates extend beyond the films 10 and have switch cores 12 secured in holes 11. The word drive conductors 13 of the thin film store are printed over films 10 and are extended to cover the ends of switch cores 12. Conductive straps 15, 16 join the ends of conductors 13 alternately on opposite sides of the substrate. Conductive material is also plated through the centre of each core. The cores are provided with row conductors 17, and, if necessary, bias windings. In a modified arrangement (Fig. 3, not shown), straps 15, 16 are provided on the substrate at a position intermediate thin films 10 and cores 12. Adjacent pairs of back-to-back substrates may be separated by a conductive plate, the conductors following a serpentine path between the pairs of substrates.
Patent GB-1286544-A (GB)
Title: An envelope having fluid-tight jointing means
Inventor: HICKEY CHRISTOPHER DANIEL DOWL
IPC: B65D90/08
Filed: 1969-08-26
Abstract: 1286544 Releasable fastenings AIRFLEX CONTAINERS Ltd 28 July 1970 [26 Aug 1969] 42498/69 Heading E2A A flexible cover 10 is secured and sealed to the rim 2 of a pallet 1 by means of a tubular edge portion 11 which is inflated within a flaired slot 3 in the rim. The inner wall 7 of the slot is provided with longitudinal ribs 8. Hooks 16 engaging in holes 15 in a flange 14 give additional security. A valve (not shown) provides for evacuation of the cover.
Patent GB-1155377-A (GB)
Title: Method of Closed Loop Control
IPC: G05D23/20
Filed: 1966-09-26
Abstract: 1,155,377. Adaptive automatic control. INTERNATIONAL BUSINESS MACHINES CORP. Sept.26, 1966 [Sept.27, 1965], No.42811/66. Heading G3R. When the error in a closed-loop control system exceeds predetermined limits, correction is effected in dependence on the error and the variable dead time between correction and its detection, a signal corresponding to the latter being stored and up-dated by measurements made when the error is within the predetermined limits. In one application, to the automatic control of rate of flow in a conduit, a signal from a flowmeter is compared with a reference representing a desired rate of flow and any error is examined to determine whether it is above or below a predetermined value. If above, the error controls a valve, upstream of the flowmeter, in a manner which is dependent on the error and stored values of the dead time resulting from the distance between the valve and the flowmeter. The stored dead time signals influence feedback in a controller involving integration and a model of the system being controlled to produce the desired response. When the error is below the predetermined value there is no control of the valve but the dead time is measured periodically and the stored values brought up to date with any changes. Dead time is measured by applying pulse disturbances to the flow, e.g. at the valve, and measuring the time interval which elapses before detection through a filter, e.g. at the flowmeter. The dead time updating takes place at a frequency lower than that at which the error signal is periodically applied. The computation, formulae for which are given, may be effected by a digital computer associated with digital to analogue converters. Applications to the control.of strip rolling, flowing material temperature and mixture composition are referred to. The measurement of dead time may involve measurement of velocity.
Patent GB-926919-A (GB)
Title: Improvements in or relating to control systems
Filed: 1961-11-30
Abstract: 926,919. Selective printing. SIEMENS & HALSKE A.G. Nov. 30, 1961 [Dec. 1, 1960], No. 42884/61. Class 100 (4). [Also in Group XXIV] In a high-speed sheet printer controlled by a data-processing device, a line feed shaft 1 is driven from a continuously rotating shaft 3 through a slipping clutch 2 and the required intermittent motion is effected by spring-loaded armatures 7, 8 of electromagnets 4, 5 which may engage the teeth 6a of ratchet wheel 6 secured to the shaft 1. The end of the armature 8 is offset 3.5 tooth pitches relatively to the end of armature 7, and the teeth 6a have a pitch corresponding to an advance of the recording medium by two minimum pitches. The number of line pitches over which an advance is required is set up by means of a binary counter Z operable by five switches S controlled by perforated tape scanning. The number of lines advanced is detected by an apertured disc 11 which is secured to the shaft 1 and which co-operates with a photodiode 12 and with a lamp 13. Signals generated by the photo-diode are supplied to a pulse shaper I. The system includes gate circuits G1, G2 and G3, a flip-flop stage K and amplifiers V1, V2. Reference has been directed by the Comptroller to Specification 865,955.
Patent GB-1499539-A (GB)
Title: Rotary kiln
IPC: F27B7/40
Filed: 1975-10-21
Abstract: 1499539 Planetary coolers for rotary kilns POLYSIUS AG 21 Oct 1975 [14 Jan 1975] 43076/75 Heading F4B The planetary cooling tubes 4 of a rotary kiln are mounted and supported on an annular member 2 which is welded at points 5, 5<SP>1</SP> into and forms a section of the kiln casing 1. The annular member 2 may be made from a rolled section 6 having two longitudinally spaced apart, outwardly projecting webs 7 to which base portions 3a, 3b of mounting members 3 for the planetary cooling tubes are welded. Alternatively the annular member may be of composite form (see Fig. 2) comprising a pair of spaced apart rolled sections (10, 10<SP>1</SP>) welded to a flat sheet metal band (11). In a further embodiment (Fig. 3, not shown) the annular member is formed without projecting webs.
Patent GB-955835-A (GB)
Title: Sewing machine with built-in electric speed-responsive regulating systems
IPC: H02P7/295
Filed: 1960-12-14
Abstract: 955,835. Control of D.C. motors; electric motors. SINGER CO. Dec. 14, 1960 [Dec. 30, 1959], No. 43079/60. Headings H2A and H2J. [Also in Divisions D1 and G3] The speed-control circuit described in Specification 953,061 is applied to the motor of a sewing machine, and both the motor and the components of the circuit (with the exception of the speed-control rheostat) are contained within the body of the machine. An additional, fixed, resistor may be shunted across the rheostat to prevent damage to the silicon controlled rectifier should the rheostat be inadvertantly disconnected. The motor which is a series, commutator machine has an insulated boss 22, forming part of a motor housing 23, in which are conducting sleeves 24 ... 27 connected to the motor and in which are inserted connecting pins of a circuit board 31. Secured to the board is a resistor 35, a capacitor 36 and a crystal diode 37, interconnected by conducting strips, not shown. A siliconcontrolled rectifier 39 is secured to, but insulated from, a metal bracket 40 integral with the motor housing, which acts as a heat sink.
Patent GB-1434695-A (GB)
Title: Process for the purification of polycarbonate solutions
IPC: C08G63/90
Filed: 1974-10-04
Abstract: 1434695 Purifying polycarbonate solutions BAYER AG 4 Oct 1974 [6 Oct 1973] 43108/74 Heading C3R A process for removing inorganic salts from a solution of a polycarbonate in an organic solvent comprises contacting the solution with a molecular sieve moistened with water. The examples describe contacting solutions of bisphenol A polycarbonate in methylene chloride, optionally mixed with chlorobenzene, with the following molecular sieves: a silica-alumina mineral having a zeolite-type lattice, dextran gel, and silica gel.