baber/WOPTO huggingface dataset:
Patent GB-602566-A (GB)
Title: An improved device for fastening rails by fish-plates
IPC: E01B11/36
Filed: 1945-11-16
Abstract: 602,566. Rail joints. PAULVE, M. L. A. Nov. 16, 1945, No. 30782. Convention date, Nov. 26, 1943. [Class 104 (ii)] Imperforate rail ends 3 and fish-plates 1 are secured by clamps 4 passing around the rail bases and resiliently deformable plates between the rails and the clamps. One end of the clamp engages a recess 2 in one fish-plate whilst the other end carries a screw 5 engaging cambered plates engaging the other fish-plate, a punched indentation being formed to limit deformation of these plates. Alternatively, as shown, the bolt engages a washer 11 carrying a spring washer 10 and provided with a projection 13 engaging a blind hole 14 in the fishplate. The fish-plates may have lateral ears 16a for securing to the sleepers, and the rail ends may be cut obliquely.
Patent GB-791313-A (GB)
Title: Improvements relating to electric regulating apparatus
IPC: G05F1/38
Filed: 1954-10-26
Abstract: 791,313. Automatic voltage control systems. WESTINGHOUSE BRAKE & SIGNAL CO.,. Ltd., and MARTIN, R. G. Sept. 29, 1955 [Oct. 26, 1954], No. 30838/54. Class 38 (4). In an automatic voltage stabilizer the error in D.C. output voltage is measured by a transistor oscillator which provides an output varying in amplitude with the voltage to be measured. The output voltage of a rectifier 3 which is supplied from A.C. mains in series with a saturable reactor 5, is compared with a reference voltage tapped at 8 from a source stabilised by a neon tube 12. The resultant is applied to an earthed-base transistor oscillator 14 via an integrating network 2, 24, the capacitor 24 of which is shunted by reversely-poled rectifiers forming a non-linear resistor. The network increases the time constant of the circuit but its effect is reduced by the non-linear resistor 30 when the error signal is large. The network is claimed and described in Specification 791,314. The output of the oscillator 14 is amplified at 25, rectified at 27 and used to control the reactor 5. In a modification, Fig. 2 (not shown), a pair of opposed control windings on the reactor are supplied from two similar oscillators which are reversely connected to the voltage to be measured via reversely-poled bias batteries. In a further modification, Fig. 3 (not shown), two oscillators of reversed polarity characteristic are used. In another modification, Fig. 4 (not shown) the main rectifier and the reference source are connected through resistors in parallel opposition instead of in series.
Patent GB-1020188-A (GB)
Title: Shovel loader
IPC: E02F3/345
Filed: 1964-08-04
Abstract: 1,020,188. Shovelling machines. SALZGITTER MASCHINEN A.G. Aug. 4, 1964 [Sept. 16, 1963], No. 30874/64. Heading E1F. A side tipping shovel is mounted on a vertically swingable, jack-actuated boom pivotably supported on a carriage mounted for movement by a jack along an upwardly extending mast carried on a self-propelled chassis.
Patent GB-1432490-A (GB)
Title: Radiator
IPC: F16K11/044
Filed: 1973-06-29
Abstract: 1432490 Valves C L HAMMARSTEDT 29 June 1973 [30 June 1972] 30963/73 Heading F2V [Also in Division F4] A valve assembly 13 for controlling the flow of hot water to and from a central heating radiator 1 comprises a cylindrical housing 14 containing a pair of members 19 and 20 defining valve seats for a number of valve members 23, 24 and 25 carried by a movable spindle 22. The valve assembly 13 is attached to the radiator via a mounting plate 7 and securing members (8-12, Fig. 2, not shown) and is in fluid communication therewith via connecting pipe portions 15, sealing rings 16 and apertures 6 in the radiator. In use the valve member 25 is normally spring biased away from member 19 and the valve is in its open position so that hot water from supply conduit 17 passes through the radiator and is then discharged through outlet conduit 18. To turn off the radiator the valve is shut by displacing the spindle 22 to the position shown in Fig. 3; the hot water then flows directly from inlet 17 to outlet 18 without passing through the radiator.
Patent GB-1098836-A (GB)
Title: Improvements in phase sensitive circuits
IPC: H03C1/04
Filed: 1965-07-21
Abstract: 1,098,836. Phase-sensitive circuits. GENERAL ELECTRIC CO. July 21, 1965 [Aug. 28, 1964], No. 30968/65. Heading H3A. A circuit for producing an output proportional to the in-phase amplitude of an alternating input signal e s  comprises a pair of transistors 10 and 11 which are switched to conduction alternately by a reference signal e r . In Fig. 4 the input signal is applied to transistors 21 and 22 which are switched alternately to conduction by a signal eg which is in quadrature with e r , both eq and e, being square waves of half the frequency of e s . On one halfcycle of e s , capacitance 13 is charged positively via transistors 21 and 10; on the next halfcycle it is charged positively via transistors 22 and 10. Similarly, the next two half-cycles charge capacitor 14 negatively via transistor 11 and transistors 22 and 21. Thus the output is a square wave (Fig. 7, not shown), of half the frequency of e s  and proportional to the amplitude of e s . Quadrature components of e s  and even harmonics of e s  charge the capacitor equally and oppositely during a half-cycle and therefore do not affect the output; odd harmonics are attenuated. A modified circuit, Fig. 5 (not shown), produces a D.C. output. In a simpler circuit, Fig. 1 (not shown), transistors 21 and 22 are omitted, the input e s  is applied to resistance 16, and e r  and the output signal are of the same frequency as e s . In a modification of Fig. 1, Fig. 2 (not shown), capacitors 13 and 14 are coupled to the output by transistors 18 and 19 which are switched alternately by e r  so that the capacitors provide an output on the half-cycles when they are not being charged. A further modification of the output connections provides a push-pull output, Fig. 3 (not shown).
Patent GB-1383117-A (GB)
Title: Pancake-type transformer
IPC: H01F30/10
Filed: 1972-07-03
Abstract: 1383117 Transformers AEG-ELOTHERM GmbH 3 July 1972 [8 July 1971] 30997/72 Heading H1T A transformer comprises a flat single layer secondary winding (Fig. 2) and two flat singlelayer primary windings (Fig. 1), assembled face to face with (ferrite) core members 3 (Fig. 3) forming hollow columns embracing the parallel portions of the layers and held in position by means of clamping members 17 and 22. Each primary winding consists of rectangular-section copper tube 4, the outer end of the winding being fitted with a terminal, 10 or 8, for connection to a cooling system, and the inner end being fitted with an eyelet 9. The secondary winding consists of copper tube 11 having a cross-sectional area twice that of tube 4 forming two electrically parallel runs 12, 13 but which are connected in the portion 7 by a return loop so that they are in series for coolant flow purposes. In the overlapping portion the thicknesses of the two tubes is reduced so that the overall thickness is the same as in the rest of the winding. The turns of the windings are insulated by a coating applied by a fluidized sintering process. Terminal bars 19 are connected by bridges 20 to the ends 10 or 8 of the primary windings, or to tape at the ends of the first or second turns. Terminals 23 are connected to terminal fittings 14 on the secondary winding.
Patent GB-1215110-A (GB)
Title: An improved valve operator
IPC: F16K31/04
Filed: 1969-06-19
Abstract: 1,215,110. Valves; clutch control. KING OF PRUSSIA RESEARCH & DEVELOPMENT CORP. 19 June, 1969 [6 Nov., 1968], No. 31055/69. Headings F2L and F2V. A threaded valve actuator shaft 15 is moved axially by an axially-captive nut 55 which is rotated by an electric-motor driven sleeve having integral teeth 20 via gears 22, 32, 41 clutch 40 and gears 42, 51. The gear 22 is threaded on to a portion 23 of a shaft 24 so that, when the closure member seats, continued rotation of the gear 22 with gear 32 splined to shaft 24 held stationary causes shaft 24 to move axially against the loading of a spring disc assembly 36 to open a switch (61) to de-energize the motor. A hand wheel-actuated shaft 45 extends coaxially of the motor driven sleeve and the clutch 40 allows either the driven gear 41 or the shaft 45 to rotate the output gear 42 of the clutch to rotate the nut which is splined to the sleeve 53 on which gear 51 is keyed. Gear 41 drives gear 42 through a roller 50 which abuts the inclined face 341a of recess 341. When shaft 45 is driven an intermediate member 43 which is keyed to the shaft is rotated against the bias of spring 49 until the shoulder 643 abuts the lug 148 on the gear 42 when recess 444 is opposite the roller and further rotation of the shaft and member 43 relative the gear 41 causes the surface 341a to cam the roller into the recess 444 to permit the gear 42 to be rotated without rotation of the gear 41. In a further embodiment the clutch is dispensed with and the shaft operating the switch is coaxial with the nut which is coupled thereto by a squared or other non-circular sectioned rod engaging within a corresponding bore of a sleeve. The hand wheel is normally disengaged from the shaft 45 by a spring but axial movement of the hand wheel engages co operating lugs on the shaft and hand wheel.
Patent GB-1439656-A (GB)
Title: Agricultural vehicle having an electro-hydraulic power lift
IPC: F15B21/08
Filed: 1973-06-29
Abstract: 1439656 Vehicle electro hydraulic power lift systems KLOCKNER-HUMBOLDTDEUTZ AG 29 June 1973 [6 July 1972] 31109/ 73 Heading A1P An electro-hydraulic power lift for a vehicle has two lower draft links 8 each adjustable by jacks 15 so that any desired vertical height ratio between the two links can be. electrically selected and this ratio maintained by an electro-hydraulic control device throughout the range of control of the lift system. The links 8 are connected to variable resistances 52 and 53 (Fig. 5) forming part of a bridge circuit 52, 53, 54 and 55 with a current source 56. The desired vertical height ratio of the draft links 8 is selected on the variable resistance 55. Any variation in height ratio of the links relative to that selected at 55 will result in a voltage difference between points 57 and 58 which is fed to a relay 59 which actuates an electro-hydraulic valve 60 to supply fluid from the pump 71 to the jacks 15 to restore the height ratio selected. The bridge circuit 52-55 includes resistors 62 and 63 of identical value and their junction 61 is connected through the winding of a relay 67 to the slider 66 of a potentiometer 64, 65 also connected across the current source 56. Since resistors 62 and 63 are of equal value the potential at the junction 61 corresponds to the mean height of the two draft links 8. The slider 66 is set to a value equivalent to the desired mean height of the draft links. Any difference in voltage between the point 61 and the slide 66 will operate the relay 67 which actuates the electro-hydraulic valve 68 to supply fluid from the pump 71 to the jacks 15 so that the mean height of the two draft links is restored to that selected by the slider 66. The relay 59 that supplies current for the valve 60 also supplies current to a relay 70. Operation of the relay 70 ensures no current is fed to the valve 68 while the valve 60 is being operated..
Patent GB-989634-A (GB)
Title: Frequency converter dynamoelectric machine
IPC: H02K47/24
Filed: 1961-08-29
Abstract: 989,634. Frequency changers. M. C. KISSLING. Aug. 29, 1961 [Sept. 9, 1960], No. 31112/61. Heading H2A. A synchronous machine which may be used as a frequency-changer has windings for both pole-numbers mounted on both members. As shown, the rotor carries a two-pole winding 7 in deep slots 8 and an eight-pole winding 9 in surface slots, both windings being D.C. excited. The stator carries polyphase windings 2, 3 of two and eight poles respectively. Stator and rotor may be interchanged. Various arrangements of the rotor slots are described each having windings of different pole-numbers. The rotor slots may be of zig-zag form, Fig. 3, to improve waveform. The rotor slot-wedges may serve as a squirrel-cage. A circuit diagram of the device used as a frequency-changer is shown and also a cross section of the machine which includes an exciter with both wound stator and rotor and having the excitation fed to the main rotor through shaft-mounted rectifiers. Specification 989,633 is referred to.
Patent GB-915495-A (GB)
Title: Method and apparatus for cleaning papermaking machine felts
IPC: D21F1/32
Filed: 1961-08-29
Abstract: <PICT:0915495/IV (b)/1> <PICT:0915495/IV (b)/2> A method of cleaning papermaking machine felts comprises applying a cleaning liquid under pressure to the felt whilst it passes over a rotating roller, subjecting the cleaning liquid to high frequency vibrations in order to loosen dirt from the felt and then removing, by suction, the liquid with the entrained dirt.  In one embodiment, Fig. 1, the roller comprises a wall 2 having circular or slot-like perforations 1 and contains a non-rotatable housing 3 extending over the entire width of the machine.  The cleaning liquid enters a chamber 6 through an inlet 7 and forms a pool above ultra-sonic vibration emitters 8 to penetrate into the felt with a pulsating action.  The liquid is removed as the felt passes over a suction chamber 9.  Elastic packings 11 are provided.  The roller is mounted by bearing rings 5 on non-rotatable journals 12 to the end faces of which the housing 3 is secured by bolts 13.  In an alternative embodiment, Fig. 2, a housing 31 is non-rotatably mounted on a fixed guide bar 15 upon which it can slide axially of the roller.  A screw spindle 17 mounted in journals 121 co-operates with a thread in the housing 31 to reciprocate the latter upon rotation of the spindle 17 in opposite directions.  A number of housings 31 may be provided which travel through individual distances together equal to the width of the felt. In a further embodiment (not shown) the felt passes over two rollers one of which contains the pressure chamber and the other the suction chamber and contact opposite sides of the felt.
Patent GB-1010410-A (GB)
Title: Preparation of dinitroparaffins, nitro alcohols and nitroolefins
IPC: C08G69/26
Filed: 1963-08-07
Abstract: Dinitroparaffins of the formula <FORM:1010410/C2/1> nitroalcohols of the formula nitroalcohols of the formula <FORM:1010410/C2/2> or nitroolefins of the formula R-CH=CH-NO2 wherein R represents a C1- 22 normal alkyl radical are prepared by contacting a C3- 24 normal alpha-olefin with an equilibrium mixture of NO2 and N2O4 in the presence of a paraffin solvent at a temperature ranging from 50 DEG to 150 DEG  C. for a time ranging from 0.1 second to 10 minutes and subjecting the nitrated product (a mixture of said dinitroparaffins with nitro-nitrites of the formula <FORM:1010410/C2/3> to controlled hydrolysis or alcoholysis by (a) a catalytic amount of a base and a C1- 6 aliphatic alcohol or a mixture thereof with water to produce a mixture of said nitroalcohols and said nitroolefins, or (b) only said C1- 6 aliphatic alcohol, or water, or a mixture of said C1- 6 aliphatic alcohol and water to produce a mixture of said nitroalcohols and said dinitroparaffins. The nitroalcohols may be separated from the dinitroparaffins or nitroolefins and either dehydrated to nitroolefins by treatment with an alcoholic alkali metal hydroxide solution or hydrogenated to corresponding amino alcohols. The separated dinitroparaffins may be hydrolyzed to nitroolefins by contacting them with an aqueous slurry of a Group II metal oxide. Alternatively, treatment (b) of the second stage of the process may be followed by treatment (a) to give a mixture of said nitroalcohols and said nitroolefins.
Patent GB-273962-A (GB)
Title: Improvements in brushes
IPC: B25G3/30
Filed: 1926-12-09
Abstract: 273,962. Berry, H. H. Dec. 9, 1926. Fixing by chuck-grip sockets.-A brush comprises bristles 2, a straight stem 1, and a handle 3 provided with a tapered split collar 4 externally screw-threaded to receive a clamping nut 5. Reference has been directed by the Comptroller to Specification 12360/12.
Patent GB-656553-A (GB)
Title: Improvements in and relating to methods of impregnating coils for electrical apparatus
IPC: H01F41/12
Filed: 1947-11-25
Abstract: A method of impregnating an electric coil having a plurality of conductor turns with a solid, porous insulating material adjacent the turns comprises providing an impervious shell about the turns and solid porous insulation and impregnating the turns and insulation with a solventless thermosetting impregnant comprising an unsaturated alkyd resin or a polymerizable ester of a monohydric alcohol, or a mixture of such compounds, and polymerizing the impregnant to a final infusible state.  The alkyd resin may comprise esters of a polyhydric alcohol or mixtures of polyhydric alcohols and an alpha unsaturated alpha, beta polycarboxylic acid or a plurality of polycarboxylic acids, one of which is an alpha unsaturated alpha, beta polycarboxylic acid. Alternatively the impregnant may comprise esters of unsaturated monohydric alcohols and polybasic acids including alpha unsaturated alpha, beta polycarboxylic acids, halogenated aromatic polycarboxylic acids and polybasic inorganic acids, or may comprise mixtures of esters of unsaturated monohydric alcohols and polybasic acids, or mixtures of the esters of the above types of polybasic acids and a plurality of alcohols, one of which is a monohydric alcohol and another a polyhydric alcohol.  A polymerization catalyst such as benzoyl peroxide may be included in the impregnant.  In an example the impregnant comprises diallyl phthalate and diethylene glycol maleate.
Patent GB-392452-A (GB)
Title: Manufacture of azo-dyestuffs
IPC: C09B29/00
Filed: 1932-11-05
Abstract: Azo dyes soluble in organic solvents, oils, fats, waxes and the like, and of good fastness to light and to sublimation, are obtained by coupling a diazotized mono-(aminophenyl)-hexahydrobenzene or a tetrazotized di-(aminophenyl)-hexahydrobenzene, or a derivative of one of these which contains no group conferring solubility in water, with a component containing a completely or partly hydrogenated aromatic nucleus but likewise no group conferring solubility in water.  The production of the following dyestuffs is described in examples: (1) di - (3 - methyl - 4 - aminophenyl) hexahydrobenzene or di - (3 - methyl - 4 - aminophenyl)-hexahydro - 4 - methylbenzene \sQ 1 - (4 - oxy phenyl)-hexahydrobenzene (2 mols.), the products giving yellow solutions; (2) di-(4-aminophenyl) - hexahydrobezene \sQ 1 : 2 : 3 : 4-tetrahydro-7-oxynaphthalene (2 mols.), the product giving orange solutions; (3) 1-(3-methyl - 4 aminophenyl) - hexahydrobenzene --> 1-(4-oxyphenyl)-hexahydrobenzene, the product giving greenish yellow solutions; (4) 1-(3-methyl - 4 - amino - 6 - chlorophenyl) - hexahydrobenzene --> 1-(methylphenylamine)-hexahydrobenzene, giving greenish yellow solutions.  A table is also given showing the shades obtainable with dyestuffs from various components, additional diazo or tetrazo components being di-(3-methoxy-4-aminophenyl)-hexahydrobenzene, 1 - (3 : 6 - dimethyl - aminophenyl) - hexahydrobenzene and 1-(4-aminophenyl)-hexaphydrobenzene, and additional coupling components being 1 : 2 : 3 : 4-tetrahydro-8-oxynaphthalene and 1-(4-oxyphenyl)-2 : 3 : 4 : 5-tetrahydrobenzene.  1-(3 - Methyl - 4 - amino - 6 - chlorophenyl) - hexahydrobenzene is obtained by condensing cyclohexene with 4-chlorotoluene, nitrating the product and reducing the nitro group.  1 - (3 : 6 - Dimethyl - aminophenyl) - hexahydrobenzene is obtained by condensing 1 : 4-di-methylbenzene with cyclohexene, nitrating the product and reducing the nitro group.
Patent GB-188961-A (GB)
Title: Improvements in or relating to abdominal and like supports for surgical purposes
IPC: A61F5/03
Filed: 1921-11-23
Abstract: 188,961. Grimmer, G. K. Nov. 23, 1921. Trusses.-Relates to supports for enteroptosis and the like, wherein a single front plate is held in place by springs or the like. A padded and shaped sheet-metal plate a is connected to a backplate b by means of a pair of springs c. One spring is permanently fastened to the plate by a stud e; the other is detachably connected by a keyhole slot fastening to another stud f, a pivoted catch g being used to secure the fastening. The back-plate may be in two parts vertically hinged, the springs being adjustably attached to each part, or alternatively, the ends of the springs may be adjustably secured by screws o in a pair of hinged sockets n attached to a single-piece backplate b<1>, Fig. 4. The Provisional Specification states that the back-plate may be padded with a layer of rubber sponge between two layers of felt.
Patent GB-1187119-A (GB)
Title: Plant Growth and Development Stimulants.
Inventor: OERIU SIMION
IPC: A01N43/78
Filed: 1967-07-07
Abstract: 1,187,119. Plant growth stimulants. RUMANIA, MINISTRY OF INDUSTRIAL CHEMICALS. 7 July, 1967 [26 July, 1966], No. 31379/67. Heading C1B. Plants and seeds are treated with a solid or liquid composition comprising cysteine, homocysteine or thiazolidine carboxylic acid as such or as salt together with folic acid and a stabilizer, e.g. sodium benzoate. Other constituents may be talc hexamethylene tetramine, magnesium and/or lithium'sulphosalicylate, sodium metabisulphate, superphosphate, zinc sulphate, manganese salt, and vitamin PP.
Patent GB-1005893-A (GB)
Title: Quinoline derivatives
IPC: C07D215/46
Filed: 1963-08-08
Abstract: The invention comprises compounds of formula <FORM:1005893/C2/1> wherein A is a divalent straight- or branched-chain aliphatic hydrocarbon group having 2 to 6 carbon atoms, B is a single bond or a group -A1-NH, wherein the nitrogen atom is attached to the quinoline nucleus and A1 is a divalent straight or branched-chain aliphatic hydrocarbon group having 2 to 6 carbon atoms, non-toxic acid addition salts thereof, and their preparation by oxidation of the corresponding piperazine derivatives.  The compounds of the invention have anti-malarial activity and may be used in pharmaceutical compositions in combination with a carrier, for example in forms suitable for oral, parenteral or rectal administration, such as tablets, pills, powders, granules, capsules, emulsions, solutions, suspensions, syrups, elixirs or suppositories.  Specifications 973,903, 986,350 and 1,002,187 are referred to.
Patent GB-1456010-A (GB)
Title: Process for binding polyester shaped articles to rubber
IPC: B29C55/00
Filed: 1973-07-02
Abstract: 1456010 Coated polyethylene terephthalate filaments IMPERIAL CHEMICAL INDUSTRIES Ltd 10 June 1974 [2 July 1973] 31403/ 73 Heading B2E A process for bonding polyethylene terephthalate filaments to rubber comprises applying a resorcinol formaldehyde latex to filaments which have been treated with a polyepoxide and heating to cure the resorcinol formaldehyde latex, a blocked or dimerised isocyanate being applied to the filaments before or together with the resorcinol formaldehyde latex. A suitable isocyanate is the bis-phenol adduct of 4, 4'-diphenylmethane disocyarate or 4, 4'-diphenylmethane diisocyanate blocked with acetone oxine or the dimer of 2, 4'-tolylene diisocyanate. A suitable epoxide is a mixture of di and tri glycidyl derivatives of glycerol.