baber/WOPTO huggingface dataset:
Patent GB-820223-A (GB)
Title: Improvements in and relating to synchronized electric drives
Inventor: POOL WILLIAM JOHN
IPC: G08C19/48
Filed: 1956-11-01
Abstract: 820,223. Control of several motors. BRITISH THOMSON-HOUSTON CO. Ltd. Nov. 1, 1957 [Nov. 1, 1956], No. 33396/56. Class 38 (3). In a selsyn system, the rotor of the master machine 6 is driven by a reversible electric motor 14, the operation of which is controlled from a central station 5 so that the controlled machines 7, 8, 9, can each be rotated in unison. The rotors of the machines 7, 8, 9, are also each coupled to an individual reversible motor 14 which is separately operated from the central station. Switches 13 are provided for disconnecting the selsyn link 10 between the machine 6 and any one of the machines 7, 8, 9, so that the rotors of the controlled machines may be individually adjusted by means of the motors 14. The system may be adapted for controlling the valves 4 of fluid couplings between induction motors 2 and circulating pumps 1 in a gas-cooled nuclear reactor. Brakes are provided for preventing internal forces in the couplings from actuating the valves. The reversible motors may be of the D.C. or polyphase A.C. types. The selsyn machines may have polyphase or single-phase primary windings. The selsyn link may be broken on the primary or secondary sides.
Patent GB-777318-A (GB)
Title: Improvements in or relating to a process for pre-stressing concrete and like structures
IPC: E04C5/12
Filed: 1955-11-22
Abstract: 777,318. Reinforced concrete. COYNE, A., and BELLIER, J. Nov. 22, 1955 [Nov. 23, 1954], No. 33439/55. Class 20(4) A stone or concrete structure is prestressed by post-tensioning a stranded cable 3, sealing a portion or portions or the whole of the channel 2 through which the cable passes, injecting liquid cement grout into the sealed space or spaces, allowing excess water to pass through the interstices between the twisted cable strands to the inner parts of the cable from whence it escapes axially. In Fig. 1, the strands at one end of the cable 3 are splayed and bent into loops which are received in a tapered opening 4a in a member 5 which is acted upon by jacks 6. The opening 4a is filled with sand which jams the strands ends and transmits the force of the jacks to the cable. A ring 7 limits the length of the splaying. The required portion of the channel is sealed by cement or plastic plugs 8, 8a. The grout is injected at 9 and, by previously forcing clay, cement paste or mastic into the interstices of the cable strands at the zone of ultimate contact with the plug 8a, the passage of water axially along the cable away from the splayed end is prevented, the water thus passing as indicated by the arrow 12 to the splayed end for discharge. The cable consists of wire wound helically around a central straight rod, which may be pulled out to provide an axial water-escape channel. The inner winding is of opposite hand to the next outer winding and so on. The cement grout pipe 9 may pass through the concrete structure into the side of the channel 2. After the grout has set sufficiently to maintain the tension in the cable, the protruding end of the latter is cut off, and the stump covered by an in situ concrete cap. The member 5 may be modified by having a shouldered cylindrical opening, the smaller diameter being at the bottom. The cable ends may be crimped, instead of looped, and the sand may be replaced by an easily meltable metal or alloy, e.g. lead or tin, or a material easily soluble, e.g. mineral salts soluble in water. This permits the member 5 easily to be cleared of cable ends and jamming material for re-use.
Patent GB-459811-A (GB)
Title: Improved fuel pump for internal combustion engines
IPC: F02M59/14
Filed: 1935-12-03
Abstract: 459,811. Fuel pumps. GENERAL MOTORS CORPORATION, Grand Boulevard, Detroit, Michigan, U.S.A. Dec. 3, 1935, No. 33473. Convention date, Dec. 6, 1934. [Classes 8 (i) and 102 (i)] In a fuel pump for an internal-combustion engine a cam-operated lever 141 is journalled on a bush 139, which is loosely mounted on a pin 137 press-fitted into the pump casing 75. The lever 141 is forked and has a surface 163, which engages and operates the lever 153 for operating the fuel diaphragm-pump 80, levers 149, 151 for operating a vacuum pump 103, and a U-shaped lever 155 engaging a spring 161 which presses the lever 141 towards the cam 143. The opening in the pump casing is closed by a plate 171, which is constantly engaged by surfaces 177, 179 on the lever 141. The plate is loosely secured by rivets, in order to permit compensating movements. Return of leakage is permitted by a flap valve 187. The spindle 83 of the diaphragm 80 is packed by a leather or rubber washer 85. The fuel enters a glass cup 15 held by a bail 19, and passes through a strainer 39 and a passage 31 to the pump chamber 13, from which it passes through the air chamber 27 to the discharge pas sage 45. The strainer 39 is carried by a holder 37 having spring fingers 41. The inlet valve and discharge valve assemblies are of the same construction, and are held by a common plate 67, having forks engaging the valve assembly. Each assembly comprises a disc 55, forming a seating for a valve 51, acted on by a spring 65, the whole being enclosed in a stamped casing 57. The rod 125 of the diaphragm of the vacuum pump has an hexagonal head 123, held in a recess 121 of similar shape in a plate 119, which is riveted to the diaphragm.
Patent GB-1493689-A (GB)
Title: Float glass
IPC: C03B5/26
Filed: 1975-08-14
Abstract: 1493689 Automatic control SKLO UNION 14 Aug 1975 [21 Aug 1974] 33822/75 Heading G3N The mass rate of flow of molten glass to a bed of molten metal is controlled by adjusting the area of a supply port as a function of at least one first parameter of the molten glass which is controlled by at least one second parameter of the stage at which the glass is formed, or forming into a sheet of solidified glass.  As shown, a glass sheet is produced by allowing molten glass to flow past a shutter 4 over a liquid metal bed 6 and be withdrawn as a glass sheet 11. The level of molten glass is measured at short intervals by a transducer 8 and the viscosity and temperature continuously by transducers 9, 10. After level adjustment by an attenuator the signal from each transducer is fed to a control unit 13, comprising a digital computer. The signals are transformed to digital signal in the control unit and deviations of the signals found which, by constants of proportionality are modified to determine the magnitude of a corrective adjustment of a motor 14 adjusting the area of the shutter opening at intervals. The thickness of the formed glass sheet is determined at the outlet 11 of the metal chamber by a transducer 12. The output of which is used to determine the time trend of the sheet width by comparison of readings taken at an interval which is a multiple of the travel time of the glass from shutter 4 to the position of transducer 12. The time trend value is used to correct the constants of proportionality.
Patent GB-1135849-A (GB)
Title: Filter
Inventor: MAYO LIONEL WILLIAM
IPC: B01D46/10
Filed: 1966-07-28
Abstract: 1,135,849. Gas filter. PARKINSON COWAN Ltd. 21 Sept., 1967 [28 July, 1966], No. 33847/66. Heading B1T. A filter for a domestic gas supply comprises a cylindrical wad of merino wool fibres (5), able to retain particles down to 0.2 microns, sandwiched between discs (6) of polyvinyl chloride, able to retain particles of 5 to 12 microns, or polyethylene able to retain . 25 micron particles. The assembly is compressed in casing (2, 3) and the overlapping flanges thereof spun together. The casing may have screw connections 4 or be soldered direct into a pipe. The downstream plastics layer could be replaced by gauze.
Patent GB-826261-A (GB)
Title: Self-propelled combine harvester
IPC: A01D75/00
Filed: 1956-11-07
Abstract: 826,261. Combine-harvesters. CLAAS A., and CLAAS, F. [trading as CLAAS GEB.]. Nov. 7, 1956 [Nov. 7, 1955; Nov. 10, 1955], No. 33945 /56. Class 6(3). A self-propelled combine-harvester having driven front wheels c and steerable rear wheels d is provided with a steering and driving arrangement whereby it can be driven in the reverse direction during transport simply by changing the driver's seat. Two such seats g, g<SP>1</SP>, are provided facing oppositely and each provided with a steering wheel F, F1. The engine, I of horizontal two-cylinder type, is located between the rear of the cutting mechanism C and the winnowing fan k and lies beneath the beater i, The steering gear and seats g are detachable, as a unit, from the chassis.
Patent GB-1241866-A (GB)
Title: Data display devices
Inventor: GENTIL ROBERT RENE CHARLES
IPC: G06K21/02
Filed: 1968-07-17
Abstract: 1,241,866. Filing papers. P. JOURNEE, and R. R. C. GENTIL. 17 July, 1968 [17 April, 1968], No. 34023/68. Heading B6E. [Also in Division G5] Each component register 2 in a data display device comprises a staggered array of documents 34 each having stub shafts 35 and 36 pivotally engaging lugs (not shown) on a desk member. Each document 34 carries a flexible coloured strip 38 supported by a roller 39 and covered by a transparent guide 37. The portion of the document 34 below the guide 37 carries a double scale of monthly calendar indications, and the strip 38 may be moved around the roller 39 to modify the information indicated. Each register 2 carries information concerning the number of components in stock and the supply of components.
Patent GB-1015501-A (GB)
Title: Organo-arsenical polymers
Inventor: HOBIN TERENCE PATRICK
IPC: C08G79/00
Filed: 1960-10-04
Abstract: Linear phenylene-arsenical polymers built of units each of which contains one or two arsenic atoms and one or two phenylene or substituted phenylene groups, together, if desired, with an oxygen atom or an alkylene group are prepared either by (A) reacting n-butyl lithium (prepared by dissolving lithium metal in ethereal n-butyl bromide) at - 25 DEG  C. with an organic dibromide to form the dilithium compound which is then reacted with a chloroarsine; or by (B) adding excess lithium to the organic dibromide in tetrahydrofuran containing some butyl bromide, removing excess lithium and converting butyl lithium into organic dilithium, and then reacting with chloroarsine.  Examples describe the preparation of (I) poly - (p - phenylenephenylarsinidene [-C6H4-As(C6H5)-]n (II) Poly - (4,41 - diphenylether phenylarsinidene). (III) Poly-(m-2-methoxy-5-bromophenylene phenylaxinidene).  (IV) Poly-(4,6-dimethoxy - m - phenylene phenylarsinidene). (V) Poly (9,10-anthracylene phenylarsinidene) [-C14H8-As(C6H5-]n (VI) Poly (p - phenylenearsanthrene - 5,10-diyl). (VII) Poly (p-phenylene-o-phenylene-di-arsinous acid anhydride-As, As1-diyl). <FORM:1015501/C3/1> (VIII) Poly (4,41 - diphenylene phenylarsinidene). (IX) Poly (p-phenylene-hydroxyarsinylidene) <FORM:1015501/C3/2> (X) Poly (p-phenylene - hydroxyarsinylidene-p-xylylenehydroxyarsinylidene). <FORM:1015501/C3/3> (XI) Poly (p - phenylene - hydroxyarsinylidene -ethylenehydroxyarsinylidene). <FORM:1015501/C3/4> Polyorganoarsinic acids may be useful as ion -exchange resins, or the arsenic acid groups may be reduced, e.g. with SO2 and HCl to give polychloroarsines which, reacted with a Grignard reagent or with an organic lithium compound, give organo-substituted polyarsines.
Patent GB-431263-A (GB)
Title: Combined tooth brush holder and vessel
IPC: A47G19/22
Filed: 1933-12-04
Abstract: 431,263. Toothbrush holders; drinking- vessels. LEHMANN, H., 38, Belsize Park, Hampstead, London. Dec. 4, 1933, No. 34052. [Classes 128 and 131] An article for use in cleaning the teeth comprises a main liquid container 1 and an auxiliary vessel 2 constituting a holder for a toothbrush, the vessel 2 communicating with the container 1 through an aperture or apertures, or through an elongated slit 3, so that liquid tends to drain from the vessel into the container. The container 1 may have the form of a tumbler, and the vessel 2 may form a handle therefor. The vessel 2 may be spaced from the container 1, the lower connecting strut being hollow.
Patent GB-366168-A (GB)
Title: Process for separating non-ferrous metals from molten metalliferous materials
IPC: C22B7/04
Filed: 1930-11-12
Abstract: Non-ferrous metals such as copper, nickel, &c. and also more volatile metals such as lead, tin, antimony, &c. are recovered wholly or partly in reguline form from molten slags to which may also be added substances containing metal oxides such as flue dust, poor pores, &c., by passing a reducing gas, preheated if desired, through the melt, while maintaining a neutral or reducing atmosphere over the melt by adjustment of the nature of the combustion gases and the amount of reducing gas employed.  As the bath becomes poor in metal content an oxidizing atmosphere may be maintained above the bath in order to volatilize the residual metals as oxides and the volatilization may be accelerated by the addition of sulphur or sulphur bearing substances to the melt when volatile sulphur compounds will be driven out and may be burned to oxides or sulphates.  When flue dust or other such oxide-containing substance is added to the slag the metal content of the added substance will also be recovered.  The examples describe the treatment of melts in a cylindrical oil-fired furnace with illuminating gas, hydrogen and water gas.ALSO:Non-ferrous metals such as copper, nickel, &c., and also more volatile metals such as lead, tin, antimony, &c., are recovered wholly or partly in reguline form from molten slags to which may also be added substances containing metal oxides such as flue dust, poor ores, &c., by passing a reducing gas, preheated if desired, through the melt, while maintaining a neutral or reducing atmosphere over the melt by adjustment of the nature of the combustion gases and the amount of reducing gas employed.  As the bath becomes poor in metal content an oxidizing atmosphere may be maintained above the bath in order to volatilize the residual metals as oxides and the volatilization may be accelerated by the addition of sulphur or sulphur bearing substances to the melt when volatile sulphur compounds will be driven out and may be burned to oxides or sulphates.  When flue dust or other such oxide-containing substance is added to the slag the metal content of the added substance will also be recovered.  The examples describe the treatment of melts in a cylindrical oil-fired furnace with illuminating gas, hydrogen, and water gas, recovering among other reguli metal containing 46 per cent of tin, 12 per cent of copper, 19,8 per cent of lead and 12,4 per cent of antimony, and metal containing 41,2 per cent of copper, 18,5 per cent of tin and 37 per cent of antimony.
Patent GB-411446-A (GB)
Title: Improvements relating to the conversion of pulverulent and slurry-like materials into nodules
IPC: C04B7/40
Filed: 1932-12-05
Abstract: 411,446. Mixing-apparatus. FASTING, J. S., 9, Monrads Alle, Copenhagen. Dec. 5, 1932, No. 34481. [Class 86.] Pulverulent or slurry like materials, e.g. raw cement, are converted into nodules by being passed through a rotary drum wherein they are subjected both to tumbling due to the rotation of the drum and to compression by a positively driven member or members in contact with or digging into the material. Preferably the compression member comprises radial arms on a shaft rotating in the opposite direction to that of the drum. As shown in Figs. 1 and 2, the apparatus comprises a horizontal rotating drum 1 and a rotating compression device comprising an eccentrically mounted shaft 3 having radial arms 6 arranged to dig into the charge of material. The drum and compression device rotate in opposite directions as indicated by the arrows. The material is fed into the drum, through a stationary hopper 7, either with the necessary water content or as a dry powder, in which case water is sprayed on to the material from a pipe 8. In a modification, a cylindrical screening device is provided at the outlet end of the drum for separating grains under a certain size, and an outer drum is provided for conveying these small grains back to the hopper. When treating slurry, dry material, such as calcined or partly calcined cement may be added to the dewatered slurry to prevent sticking. The mixture of dewatered slurry and calcined material may be kneaded in a roller mill before it is fed to the drum.
Patent GB-1466895-A (GB)
Title: Sheathed optical fibres
IPC: G02B6/04
Filed: 1974-08-06
Abstract: 1466895 Light guides SIEMENS AG 6 Aug 1974 [7 Aug 1973] 34501/74 Heading G2J A sheathed optical fibre comprises a plurality of cores of material having a high refractive index and low light absorptivity in a common sheath of a material having a low refractive index. The fibre is made by drawing a parallelepiped-shaped intermediate body built up of flat-sided core portions 8, 9 and sheath portions 10 ... 18 with polished mating faces between the two portions. The drawn fibre then possesses cores with crosssections of approximately semi-circular shape, from the body shown in Fig. 2, or polygonal Fig. 1 (not shown) or circular Fig. 3, (not shown).
Patent GB-759934-A (GB)
Title: Improvements in or relating to circuit arrangements including potentiometers
Inventor: BILLIN JAMES JOHN
IPC: H03H7/24
Filed: 1953-12-12
Abstract: 759,934. Impedance networks; television. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Nov. 25, 1954 [Dec. 12, 1953], No. 34668/53. Classes 40 (3) and 40 (8). [Also in Group XL (c)] A potentiometer for use in a circuit which, owing to the input capacity of apparatus to which the circuit is connected, introduces variable attenuation of upper frequencies comprises a contact 13 which is moved over a resistance winding 10 on a flat strip 9 by means of a helical thread 15, and a conductor comprising a casing 11 which is connected to the contact 13 and with the winding 10 provides a stray capacity. The spacing between the winding and the casing is such as to produce a capacity which gives uniform response over a desired frequency band. As applied to a video frequency gain or contrast control, the potentiometer 1 is connected in series with a resistance 19 and inductance 20 coupled to the anode of the last stage of the video amplifier, and the output from the potentiometer is connected through a peaking coil 21 to a cathode-ray tube 23. The brightness of the tube is controlled by a potentiometer 25. When the contact 2 is nearest the valve 18, maximum contrast is produced. The coupling capacity of the potentiometer may be made to increase with decrease of contrast by arranging the casing 11 to be spaced by different amounts from the winding, so that with decrease of contrast the definition is increased. The capacities associated with the potentiometer may be made to resonate with the inductance 20 in such a way that at levels of maximum contrast the input capacity of the tube 23 is the only effective capacity, the arrangement providing a boost at a particular frequency. At lower settings of contrast the coupling capacity may give a boost at a higher frequency. The peaking coil 21 may be made to resonate with the capacity to earth of the potentiometer and the input capacity of the tube 23 to provide additional boost. Specification 722,284, [Group XXXVI], is referred to.
Patent GB-1087294-A (GB)
Title: An improved door for fireplaces, stoves, furnaces or the like
IPC: F23M7/00
Filed: 1963-07-04
Abstract: 1,087,294. Fireplaces. J. L. DAVIES. Sept. 25, 1964 [July 4, 1963; Sept. 3, 1963], Nos. 34753/63 and 34754/63. Heading F4W. A fireplace is fitted with a door comprising vertically disposed, spaced-apart, heat-resistant glass tubes 2 supported within a frame member 1, in airtight relation to the fireplace front, the tubes being open-ended to allow passage of air through the tubes, thus forming a convection air heater. The tubes may be mounted in holes formed in asbestos gaskets in the horizontal portions of the frame member 1, or by means of circular spring clips which allow expansion of the tubes. The tubes may be adapted for heating water by the provision of horizontal headers included in a water feed line. The fireplace also comprises a rear water space 5 having a damper controlled passage 6 therethrough, a grate fitted with an oscillatory portion and secondary air supply means 11.
Patent GB-949806-A (GB)
Title: Symmetrical magnetic circuit for three-phase transformers
IPC: H01F27/245
Filed: 1961-09-27
Abstract: 949,806. Transformers. R. F. C. JOSSERAND, and P. GUICHARD. Sept. 27, 1961 [Nov. 9, 1960], No. 34773/6l. Heading H1T. A magnetic core for three-phase transformers comprises six yoke members 22, 23, 24 (other three not shown) of laminated magnetic material forming, in two groups of three members, two equilateral triangles, and three limbs 31, 32, 33 of laminated magnetic material each connecting a separate one of the apices of one equilateral triangle to a separate one of the apices of the other equilateral triangle, the ends of the laminations of each yoke member interleaving with laminations of the respective limbs, which latter laminations at their region of interleaving lie in parallel planes with the ends of the yoke laminations. The members may be separated by thin plates 25, 26, 27 leaving recesses 28, 29, 30 and are clamped by members 35, 36, 37 supporting members 34, which may grip the windings, being arranged as shown. The limb laminations may be secured by rivets, insulated bolts or binding, in pockets 9, 10, 11 (Fig. 3) separated by shims 18, 19, 20, 21 to provide oil circulating channels and may be held together by binding or circling.
Patent GB-626348-A (GB)
Title: A loom shuttle checking device
IPC: D03D49/52
Filed: 1946-11-23
Abstract: 626,348. Shuttle checking devices. BUTTERWORTH, T.. WHITTAKER, G., and EASTWOOD, H. Nov 23, 1946, No. 34799. [Class d42 (iii)) A shuttle checking device comprises a short arm rotatable against the action of a, spring which returns the shuttle to its operative position after the shuttle has been brought to rest. A short strap G has one end attached to a check end strap L and to a check strap K ; the other end is connected to a short arm F. The arm F is' attached to a boss E having an inclined face E<SP>1</SP> coacting with an inclined face N<SP>1</SP> on an upper boss N. The boss N is acted upon by a spring O. The spring pressure can be adjusted by a nut Q.
Patent GB-909510-A (GB)
Title: Improvements in or relating to centrifugal pump impellers
IPC: F04D13/06
Filed: 1960-10-11
Abstract: 909,510. Electric motors. FARE ARMATURFABRIK A.B. Oct. 11, 1960 [Oct. 17, 1959], No. 34867/60. Class 35. [Also in Groups XXII and XXVI] A rotor assembly for a motor-driven centrifugal pump comprises a hollow shaft 31 made of bearing metal or like material and cast into or otherwise secured to a disc 12 carrying pump impeller blades 13 and a front shroud 11. A sleeve 22 formed integrally with the back shroud 21 of the impeller is slid on to the shaft 31, fol. lowed by rotor laminations 49. The parts are clamped together by a nut 50 threaded on to the end of the shaft 31. The shaft 31 is journalled on a stationary spindle 45. The stator is isolated from the pumped liquid by a sleeve 46.
Patent GB-1317063-A (GB)
Title: Pigments of the perylenetetracarboxylic acid diimide series
IPC: C08L27/00
Filed: 1970-07-17
Abstract: 1317063 Pigments CIBA-GEIGY AG 17 July 1970 [18 July 1969] 34877/70 Heading C4P [Also in Division C3] The invention comprises pigments of the general formula wherein R and R<SP>1</SP> which may be the same or different are H, Cl, C 1 -C 4  alkyl, phenyl optionally substituted by chlorine, phenylamino, mercapto or amino. Preferably R and R<SP>1</SP> are methyl or phenyl. They are prepared by condensing perylene 3,4,9,10-tetracarboxylic acid or the dianhydride thereof with two mols of identical or different 2-aminothiadiazoles of the general formula wherein R is as defined above. The condensation preferably takes place in a solvent, e.g. quinoline, trichlorobenzene, diphenylene oxide, diphenyl, mixtures thereof and pyridine, the latter under pressure at 200-230‹ C., and also in presence of a condensation agent, e.g. zinc acetonylacetate. The pigments are used to colour lacquers, plastics, synthetic fibres and printing inks.