baber/WOPTO huggingface dataset:
Patent GB-1173917-A (GB)
Title: Electromechanical Converter
Inventor: TEODORESCU HONORIU DAN
IPC: H01F7/06
Filed: 1966-12-01
Abstract: 1,173,917. Controlled non-linear inductors. RUMANIA, MINISTRY OF MACHINE BUILDING INDUSTRY. 1 Dec., 1966 [4 Dec., 1965; 31 March, 1966], No. 53910/66. Heading H3B. [Also in Division H1] A magnetic amplifier is modified so that the core of the amplifier can attract a magnetizable member or another similar core. This is done by providing a portion of reduced cross-section in the magnetic core. One element (Fig. 1) of the amplifier is made with two sets of coils 2 and 3, each consisting of a load coil and a control coil wound on a magnetic core. The core is formed of U-shaped and inverted U-shaped sheets with the inverted sheets bridged to form a loop (Fig. 2, not shown) while the U-shaped sheets are not bridged. Thus the portion of reduced cross-section (see insert A) is provided by the upper part of the inverted U-shaped sheet. Alternatively the reduced section may be provided at every third, fourth or fifth sheet rather than at every other sheet. Two elements 5 of the kind shown in Fig. 1 are used in an electric switch (Fig. 3) to attract armature 9 which controls contacts 10.
Patent GB-1294465-A (GB)
Title: Improvements in induction motor drive units
Inventor: DAVEY ANTHONY WALTER
IPC: H02K7/102
Filed: 1969-11-04
Abstract: 1294465 Induction motors HERBERT MORRIS Ltd 4 Nov 1970 [4 Nov 1969] 53962/69 Heading H2A A planar air gap induction motor has an electromagnetically operated brake associated with the rotor. Fig. 2 shows one embodiment wherein a cast iron or steel rotor disc 6 with an annular ring of low resistance material, such as aluminium or copper, co-operating with fixed stator coils (not shown), is fixed to a shaft 5 journalled in a casing 3 which carries a disc 12 with a brake lining 14 urged by springs 13 into engagement with the rotor disc. Electromagnets (not shown) for releasing the brake are provided. More than one discoidal rotor and more than one set of stator coils may be provided to increase the output of the motor. In an alternative braking arrangement, Fig. 5, spring-loaded brake shoes 17 released by a solenoid 18 co-operate with a drum 15 on the hub of the rotor disc, and according to a further embodiment, Fig. 6 (not shown), the rotor disc is axially displaceable on shaft 5, being withdrawn from engagement with fixed brake pads (14) against a spring (19) on energization of the stator coils.
Patent GB-1451614-A (GB)
Title: Silicious polymeric material
IPC: C08G85/00
Filed: 1973-11-23
Abstract: 1451614 Gas chromatography PETROLEO BRASILEIRO SA 23 Nov 1973 [5 Dec 1972] 54613/73 Heading B1H [Also in Division C3] A stationary phase for use in gas chromatography comprises an organic polymer and at least 20% by weight of the total mixture of silica which is free from metal oxides and from calcium, sodium and magnesium ions is non- porous and particulate, the particle size being smaller than 500Š and the surface area being greater than 50 m<SP>2</SP>/g and is obtained by the high temperature hydrolysis of silicon tetrachloride. The stationary phase may be used to separate a mixture of saturated hydrocarbon gases, a mixture of alcohols, and a mixture of n-alkanes and in the separation of naphtha. The polymers contained in the composition may be polyamides, polyureas, polyurethanes, polyethers or polystyrene.
Patent GB-1460909-A (GB)
Title: Vibration damping systems
IPC: C08L67/00
Filed: 1973-11-26
Abstract: 1460909 Vibration - damping laminates HOECHST AG 26 Nov 1973 [24 Nov 1972] 54726/73 Heading B5N [Also in Division C3] Laminated assemblies having vibration damping properties are disclosed, comprising two outer sheets of metal, glass or mineral material, e.g. 0À5 mm. thick steel, and between them an interlayer comprising a cross linked polymeric composition derived from a mixture comprising either (a) styrene/butyl acrylate copolymer, vinyl acetate, butyl acrylate and tetraallyloxyethane or (b) vinyl acetate/dibutyl moleate copolymer, vinyl acetate, butyl acrylate and tetraallyl oxyethane. The interlayer may be 0À3 mm. thick and may be applied directly to the sheets and subsequently polymerized, e.g. by heat or radiation. Additives for the interlayer are specified.
Patent GB-1161603-A (GB)
Title: Improvements relating to Heat Treatment Furnaces
Inventor: HICKMAN GEORGE DAWSON
IPC: C21D1/74
Filed: 1965-12-30
Abstract: 1,161,603. Heat-treatment furnaces. NEMO HEAT TREATMENTS Ltd. 11 Jan., 1967 [30 Dec., 1965], No. 55188/65. Heading F4B. A furnace for heat treatment of metal components comprises a gas-tight outer shell 1, an inner casing 2 of gas-permeable heat insulating material having hinged flaps 3 in the upper parts of its sides and a movable bung 4 in its bottom, cooling coils 9 between the shell 1 and the casing 2, a muffle 5 within the inner casing 2 in which workpieces can be placed, heating elements 8 between the inner casing 2 and said muffle 5, means for evacuating air and moisture from the furnace and admitting an inert gas, and a fan 7 placed over the muffle 5 for drawing gas either inside the casing 2 when the flaps 3 and bung 4 are closed, or when both are open through the space between the easing 2 and the shell 1 so that said workpieces can be either heated or cooled respectively. A pipe 10 connects the shell 1 to an evacuating pump 11, an inlet for inert gas via valve 15, a pressure switch 17 which helps remove excess pressure in the shell, and a sampling chamber 20 fitted with a moisture detecting device 21.
Patent GB-1126247-A (GB)
Title: Improvements in high speed knitting machine
IPC: D04B35/00
Filed: 1966-12-13
Abstract: 1,126,247. Knitting-machines. TEXTILE MACHINE WORKS. 13 Dec., 1966 [22 Dec., 1965], No. 55876/66. Heading D1C. To increase the rate of production of the tubular knitted fabric on a stationary circular cylinder machine the cam profile operating on the butts of the needles is as shown in Fig. 7 wherein from a horizontal clearing level 52 the needles are rapidly lowered initially to take the yarn following which their downward movement is retarded as at 56. At the stitch drawing point 57, 59 their vertical movement is increased and thereafter they are immediately raised over a short distance at substantially the same rate as that at which they previously immediately drew their stitches and this rate corresponds to their lowering rate at the point 55. Following their stitch drawing movement the needles are raised at a reduced rate as at 62 until they attain the stitch clearing level 65. A guard arm 51 ensures that the needles are at clearing level prior to knitting. The machine is composed of four circular heads 12 mounted on a base plate 11 each cylinder 31 being mounted on a stationary flange 30 secured to the base plate and secured to the flange by a screw 32, Fig. 3. An outer sleeve 72 is rotatably driven by the provision of an integral V shape bead 121 which receives a belt drive from a variable speed pulley. The outer sleeve 72 supports a ring screw 88 from which depends an inner sleeve 70 carrying the needle cams. The inner sleeve is keyed to the outer sleeve for vertical movement but also to rotate therewith such that rotation of the ring screw 88 causes the vertical adjustment of the inner sleeve and hence variation in the quality of the fabric. The yarn is supplied from bobbins and is fed through guide tubes in the latch ring 25 which is supported from the sinker head of the machine.
Patent GB-1114025-A (GB)
Title: Improved hydraulic control system
Inventor: SCHOTT ROBERT EDWARD
IPC: B62D5/07
Filed: 1966-12-16
Abstract: 1,114,025. Power steering. ALLIS-CHAMBERS MANUFACTURING CO. 16 Dec., 1966 [27 Dec., 1965], No. 56456/66. Heading B7H. [Also in Division F2] An hydraulic control valve is provided with a manually-operable spool 69, Fig. 2, which responds to the build-up of pressure in the output line to cause gradual movement of said spool to cut off the feed to the output line. A tractor 10 is provided with three of these valves 17, 28 and 31, which respectively operate double acting power steering motor 21, control brake and clutch motors 48 and 51 of a power take-off mechanism, and actuate power clutch motors 41, 44. Control valves 28, 31 are associated with relief valves 26, 29 and a pilot valve 27 which ensure that pump 12 maintains sufficient pressure downstream of valve 17 to keep control valves 28, 31 operational regardless of the operation of the steering mechanism. A single housing 54 carries valves 27 and 28 which are connected to one another and to pump 12 by a restricted passage 81. Housing 54 is connected at 59, 61 to lines 49, 52 (Fig. 3) respectively and space X is connected to reservoir 11. In operation, the pressure in chambers 66, 77 increases until spool 82 of valve 27 moves to the right against spring 92 thereby opening chamber 77 to exhaust to reservoir through space X. With valve 28 in the neutral position shown fluid then flows unrestricted through valve 27. To actuate motor 51, rod 68 is mowed to the right and .through spring 71 moves spool 69 to first closeoff clutch exhaust opening 95 and then to put chambers 66 and 67 into communication via spool groove 75. As pressure builds up in clutch chamber 67 it acts on the right-hand end of spool 69 to exert a force which gradually moves the spool back to the left to close the inlet opening to chamber 67. If more pressure or clutch engagement is required control rod 68 can be moved further to the right whereafter the chamber is again cut-off. Thus the pressure in chamber 67 is always a function of the distance rod 68 which has been moved from its neutral position and the rod 68 experiences " feel " as a result of the pressure on spool 74. The valve operates similarly with leftward movement of rod 68. Detents (not shown) are provided to lock the rod in its end positions.
Patent GB-1169780-A (GB)
Title: Integrator System
IPC: H03M1/00
Filed: 1967-12-14
Abstract: 1,169,780. Binary counters. BENDIX CORP. 14 Dec., 1967 [21 Dec., 1966], No. 56761/67. Addition to 1,136,059. Headings G4A and G4H. A binary counter 10 for use in the integrator system of Parent Specification 1,136,059 includes a plurality of bi-stable stages 12, 50, 50A to the first of which are fed pulses from a pulse generator 6 at a frequency corresponding to the amplitude of an input signal on conductor 4, successive bi-stable stages being connected via gating circuits 24, 24A to each of which is fed a signal from command circuit 30 indicating the direction of count. The outputs 14, 52, 52A from the bi-stable stages represent the count in binary coded form. In the embodiment described the gating circuit 24 gives a positive output signal to bistable device 50 when the lowest bi-stable stage 12 is switched to its " zero " state by an input pulse on conductor 8 and when an upwards count is indicated by the command circuit 30. Since neither of two AND gates 22, 26 in the gating circuit 24 are then enabled NOR gate 28 gives a positive pulse to bi-stable stage 50 so that it changes state.
Patent GB-1392490-A (GB)
Title: Analytical process
IPC: G01N33/48
Filed: 1972-12-08
Abstract: 1392490 Rotary photometric analyzers UNION CARBIDE CORP 8 Dec 1972 [9 Dec 1971] 56891/72 Heading G1A In a multiple sample photometric analyzer of the type in which the rotation of a rotor causes reagents and samples originally placed in separate radially aligned chambers to be mixed and transferred to analysis chambers, measurements are made of the mixed reagent and sample before any substantial reaction has occurred to provide reference levels which are stored in a memory and subtracted from the corresponding measurements made after the reaction is completed. As shown, Fig. 3, light from a lamp 50 passes through the cuvettes of a rotor 35 the rotation of which produces output pulses from a photomultiplier 60, the amplitude of each pulse depending on the optical density of the respective sample. The output pulses are applied via a logarithmic amplifier 61 to a peak detector 62 which is reset between pulses. The rotor is loaded with samples and reagents and then spun so that they are mixed and transferred to the peripheral cuvettes. Before any reaction can occur the optical density of each mixed sample is measured, converted to digital form and stored in a memory unit 68 to provide a reference level. After a suitable length of time during which the reaction occurs a further set of measurements are taken and the corresponding values stored in a memory unit 72. The reference level of each sample is subtracted from the corresponding measurement after the reaction and the resulting value recorded by a printer 77. A specific example relates to the determination of glucose in blood serum, the composition of the reagent being given.
Patent GB-1383050-A (GB)
Title: Process for microorganically producing elastases
IPC: C12N9/66
Filed: 1972-12-13
Abstract: 1383050 Elastase AJINOMOTO CO Inc 13 Dec 1972 [24 Dec 1971] 57604/72 Heading C3H Elastase is produced by aerobically culturing Flavobacterium immotum (FERM P-1308), Flavobacterium incertum (FERM P-1309) or Flavobacterium pulchlum (FERM P-1310) on an aqueous nutrient medium and recovering the accumulated elastase. Other species of elastase producing micro-organisms are mentioned by way of comparison. The physical properties of the elastase produced by Flavobacterium immotum are set forth in detail, including heat stability, pH stability and the effect of metal ions and SH reagents. The elastase was found to be inactivated with cupric and zinc ions.
Patent GB-1182104-A (GB)
Title: Production of Moulded Articles from Polyurethane
IPC: B29C44/04
Filed: 1966-12-29
Abstract: 1,182,104. Moulding plastic materials. A.M.A.E. EGGERS-LURA, P. WOLFF, and H. KAABER. 29 Dec., 1967 [29 Dec., 1966], No. 58094/66. Heading B5A. A method of producing a moulded article, e.g. an upholstered chair, of rigid cellular polyurethane bonded to a flexible cellular polyurethane, comprises injecting a reaction mixture of the former into a mould, replacing a part of the mould by a differently shaped part to provide a cavity between it and the rigid polyurethane, injecting a reaction mixture into the cavity to produce the flexible cellular polyurethane, the second mixture being injected after the first mixture has gelled but while it still contains exothermic heat of reaction.
Patent GB-1300585-A (GB)
Title: Automatic measuring and counting device for particles in a dispersion
Inventor: DITTRICH WOLFGANG
IPC: G06M1/10
Filed: 1969-12-18
Abstract: 1300585 Photo-electric investigation of dispersions W DITTRICH and W GOEHDE 18 Dec 1969 [18 Dec 1968] 58689/69 Heading G1A [Also in Divisions G2 and G4] The concentration of suspended particles in a liquid medium is determined by flowing the suspension through a cell 6 having an illuminated constricting aperture so that each particle emits a pulse of fluorescent light as it enters the illuminated field and passes through the aperture, each light pulse being converted to an electrical pulse by a photo-multiplier 10 whose output feeds a counting circuit 11-14. The constricting aperture is so shaped, Fig. 2 (not shown) that while passing through it the suspension is travelling parallel to the axis of the optical system 8. The illuminated area of the cell is governed by an adjustable aperture 4. Filters 3, 9 are provided in the light path. The circuitry comprises an amplifier 11, counter 12, CRO 13 and frequency analyzer 14. The analyzer 14 may be replaced by a pulse-height analyzer. If each particle is known to consist of two or more components, such as a cell nucleus and cytoplasm, which can be stained so as to fluoresce at different wavelengths, the relative proportions of each component in each particle may be determined by using a number of detectors, each having associated therewith a different dichroic filter.
Patent GB-1247567-A (GB)
Title: Non-magnetisable drill stems
IPC: E21B17/16
Filed: 1969-12-02
Abstract: 1,247,567. Steel articles. SCHOELLERBLECKMANN STAHLWERKE A. G. Dec. 2, 1969 [Dec. 2, 1968], No. 58910/69. Heading C7A. Drill stems and rod sections are made from a steel comprising: - C up to 0À07% Cr 20-25% Ni 10-15% N 0À05-0À5% Mn 0À5-2% and Si up to 1% the balance, apart from impurities, being Fe. The drill parts may be made by forging at 1150-800C., air cooling, annealing at 1050 C., water quenching and then cold working, preferably with a greater reduction at the ends than in the middle of the stem or rod.
Patent GB-1371459-A (GB)
Title: Method for the determination of inorganic phosphate
IPC: G01N33/84
Filed: 1972-12-21
Abstract: 1371459 Determining inorganic phosphate UNION CARBIDE CORP 21 Dec 1972 [22 Dec 1971] 59074/72 Heading G1B A process for the determination of inorganic phosphate-containing fluid comprises forming a mixture of said phosphate-containing fluid and an ammonium molybdate solution; measuring by means of a centrifugal analytical photometer a first absorbance reading at 340 nanometers not more than two seconds after said mixture is formed measuring a second absorbance reading at 340 nanometers not more than ten minutes after said mixture is formed; comparing the absorbance differential with at least one other differential obtained simultaneously under the same conditions from a fluid containing a known concentration of inorganic phosphate, and thereby determining the amount of inorganic phosphate in said phosphate containing fluid. The process is applicable to body fluids. Proteins need not be removed; serum protein can be kept in solution by addition of a non-ionic surfactant.
Patent GB-1410630-A (GB)
Title: Foam producing devices in the form of carpet of fabric shapooers
IPC: A47L11/32
Filed: 1972-12-28
Abstract: 1410630 Cleaning carpets etc; reservoir pads or brushes LEIFHEIT INTERNATIONAL GUNTER LEIFHEIT GmbH 28 Dec 1972 [28 Dec 1971] 59931/72 Headings A4F and A4K A carpet or fabric shampooing device comprises compartments 2, 4 for two respective chemical components of a foam producing reaction, and means, e.g. a valve 5, for controlling flow of the first component (which is liquid) from the compartment 4 to the compartment 2. The illustrated apparatus is for shampooing carpets, the foam produced being fed through a previous partition 10 on to a roller brush I for application to a carpet. The compartment 4 may hold orthophosphoric acid and a foaming agent for reaction with solid sodium bicarbonate in the compartment 2, the resulting disodium hydrogen phosphate assisting the cleaning action. Alternatively acetic or sulphuric acid may replace the orthophosphoric acid. In another embodiment the second compartment 11 Fig.2 (not shown) holds a liquid chemical component. A further embodiment is formed as a hand-held device for fabric shampooing, and comprises a plastics squeeze container 21 which on squeezing discharges a liquid first reactant through a sprayer 23 into a second reactant in a cap 25 from which foam is discharged via a permeable partition 26 and a nozzle 27. For foam brushing upholstery a brush 28 may replace the nozzle 27.
Patent GB-1375410-A (GB)
IPC: D06M15/333
Filed: 1971-12-30
Abstract: 1375410 Polyether starching compositions KAO SOAP CO Ltd 30 Dec 1971 [30 Dec 1970] 60743/71 Headings C3F C3U and C3P [Also in Division D1] A starching composition comprises (1) a  starching agent and (2) from 0À5 to 5% by weight, based on the weight of starching agent, of at least one compound of a molecular weight in the range of from 4500 to 12,000 which is an ethylene oxide adduct of a C 12 -C 18  alcohol, a C 12 -C 18  fatty acid or a C 14 -C 18  alkylphenol with ethylene oxide. The starching agent may be starch, polyvinyl alcohol and carboxymethylcellulose. In use, the compositions contain water.
Patent GB-705739-A (GB)
Abstract: 705,739. Light-sensitive cells. COMBUSTION CONTROL CORPORATION. Feb. 4. 1952 [March 17, 1951], No. 2864/52. Class 37 In a light-sensitive cell employing a photoconductive material in the solid state, two or more pins forming the sole operating electrical connecting members, are mounted in a mass of solid insulating material, and the lightsensitive material, disposed on the surface of the insulating mass, forms a conductive path between the said pins. The supporting member 8, formed as a small cylinder of glass or ceramic material, has a flange portion 9 and axial holes 17, 18 terminating in recesses 21, 22. The pins 11, 12 have vitreous sleeves 19, 20 engaging the holes 17, 18 and are sealed in the member 8 by a heating operation after the recesses 21, 22 have been filled with a vitreous solder. The light-sensitive material 13, e.g. activated lead sulphi de, is deposited on the end surface and flange 9 of the member 8, and conductive tabs 14, 15, for example of gold, are deposited over small areas covering the ends of the pins to define the active surface 16 of the cell. A thin layer of silver paste may be deposited on the light-sensitive material over an area corresponding to the members 14, 15. The light-sensitive surface may be protected by a cover of generally transparent material.
Patent GB-2003226-A (GB)
Title: Turbo-Charged compression ignition engines
IPC: F02B37/16
Filed: 1978-08-21
Abstract: The engine 1 and the turbo- compressor set 3, 4, 5, wherein the turbine 5 is powered by engine exhaust gas, the turbine is mechanically coupled to drive the compressor 3, and the compressor provides the air supply to the engine are provided with a by-pass 12 in parallel with the engine 1 connecting the compressor outlet 6 with the turbine inlet 10, the by-pass including a heat exchanger 13 through which turbine exhaust gas can give up heat to air in the by-pass. A cooler 16 is connected between the compressor outlet 6 and the engine inlet 7 and an auxiliary combustion chamber 19 between the engine outlet and turbine inlet. <IMAGE>
Patent GB-2005844-A (GB)
Title: Linear displacement sensor
IPC: G01D5/22
Filed: 1978-10-06
Abstract: A linear displacement sensor comprises two adjacent inductive windings A1, A2 and a ferromagnetic core N movable within the windings so that in a central position the inductances are equal and at positions either side of the central position, one inductance is greater than the other. A d.c. potential VB is applied to the junction between the two windings and the potentials at the ends of the windings are applied to comparators to which are also applied the same reference voltage Vs so that each comparator produces an output signal when the potential applied thereto from a winding exceeds the reference potential. A difference in the inductance between the two windings due to displacement of the core results in the comparators producing output signals at different times t1,t2 due to the change in time constant of the windings. These signals are then processed to give a binary indication of the core displacement on a counter c which counts pulses from clock ck during the time t2-t1 between the production of the comparator output signals. <IMAGE>
Patent GB-2008631-A (GB)
Title: Improvements in or Relating to Sewing Machines
IPC: D05B51/00
Filed: 1978-10-27
Abstract: A method of and means for monitoring seam formation in a multi- thread sewing machine is disclosed wherein the length of upper thread (M2) used in producing a seam is monitored in relation to the length of the seam (M 1) and is compared with the length of thread required to produce that seam in an evaluating unit (AE), and deviation from a norm is caused to actuate an indicator. <IMAGE>
Patent GB-2009807-A (GB)
Title: Filiform textile material
IPC: B29B11/00
Filed: 1978-12-08
Abstract: Filiform textile material which can be used for producing a textile material used in the manufacture of laminated articles or which can be given a coating, is constituted by at least one assembly having a plurality of filaments which are impregnated with a non-polymerised or partly polymerised resin, the filaments being wrapped by at least one textile filament which is not impregnated with resin.