baber/WOPTO huggingface dataset:
Patent GB-1391611-A (GB)
Title: Conveying systems
IPC: B65G21/14
Filed: 1971-08-20
Abstract: 1391611 Extensible conveyers HUWOOD Ltd 3 Oct 1972 [20 Aug 1971] 39146/71 Heading B8A In a mining conveyer comprising an endless belt 1 the tail end 3 of which is adjustable to increase or decrease the length of the conveyer, ancillary equipment, such as a stage loader 8 or a feed bunker (not shown), is supported for sliding or rolling movement along guide rails 10 carried by the supporting structure of the belt 1. The supporting structure comprises longitudinally spaced stools 15 including side posts 16 and cross-members 17, each stool supporting an idler roller 17 carrying the return run of the belt. The side posts 16 carry tubular sockets 19 housing tubular rails 20 which support troughing roller sets 15. Slotted mounting plates 22 are secured to the side posts 16, and the rails 10, which are of I-section, are bolted to those plates 22. The ancillary equipment has rollers 13 running on the upper web of the rails, and rollers 14 running on the vertical web thereof. In a modification (Figs. 12-14) the rails 10 are a permanent part of a supporting structure mounted on skids (33).
Patent GB-1365407-A (GB)
Title: Optical document scanning system
IPC: G06V10/12
Filed: 1972-08-23
Abstract: 1365407 Character recognition systems INTERNATIONAL BUSINESS MACHINES CORP 23 Aug 1972 [30 Sept 1971] 39186/72 Heading G4R [Also in Division G2] An optical scanner for use in a character recognition system comprises means for scanning a beam of radiation repeatedly over the character-bearing document to provide character-representing signals to the recognition circuitry. If the circuitry gives an ambiguous identification of a character the character is repeatedly displayed to an operator by scanning means which has at least part of its optical path in common with that of the first scanning means. As shown the radiation beam is swept-over a relatively moving document by a rotating assembly of mirrors 131. Radiation from an infra red source 101 is diffusely reflected from the document 109 and passes to a photo-cell array 115 connected to the recognition circuitry. Light from a lamp 117, normally switched off, is directed by dichroic mirrors 102, 113 over part of the path 102, 108 taken by the infra-red radiation. When an ambiguous identification is given, unit 119 switches on lamp 117 at each instant at which the ambiguous character is in the radiation path, the character being projected on to screen 121. Relative movement of the document and scanner is prevented during this procedure. A second infra-red source 201 and lamp 217 may be provided to increase the intensity of the images at screen 121 and photo-cells 115. The infra-red and light sources may be replaced by a single source of achromatic light the intensity of which is increased by unit 119 when an ambiguous character is to be displayed.
Patent GB-871084-A (GB)
Title: Process for the production of thiazolines-í~-3,4
Filed: 1957-12-18
Abstract: D 3 4-thiazolines are prepared by simultaneously reacting hydrogen sulphide and ammonia (or an ammonium salt of a weak acid) with a mixture of 1 mole of an a -diketo disulphide (i.e. containing the gouping -CO-C-S-S-C-CO-) and at least 2 moles of a compound containing a carbonyl group.  In place of hydrogen sulphide and ammonia there may be used an alkali sulphide solution in the presence of ammonia, or an aqueous solution of colourless ammonium sulphide. Solvents may be used and a small quantity of water may be added initially.  Specified products have the formula:  <FORM:0871084/IV (b)/1> where R1, R2 and R3 are H, alkyl, aralkyl, aryl, cycloalkyl or heterocyclic radicals, and R4 and R5 are H, alkyl, aralkyl, cycloalkyl or heterocyclic radicals.  Rings may be formed between R1 and R2 or R3, R2 and R3, and R4 and R5.  The substituents may contain functional groups, such as OH, COOH, COOCH3 and COOC2H5.
Patent GB-970418-A (GB)
Title: Improved gas-permeable and liquid-proof porous electrodes
IPC: H01M50/414
Filed: 1960-11-16
Abstract: 970,418. Electrodes. SOC. DES ACCUMULATEURS FIXES ET DE TRACTION. Nov. 16, 1960 [Nov. 17, 1959], No. 39425/60. Drawings to Specification. Heading H1B. A porous moisture-proof electrode of carbon; nickel, silver or cadmium is bound by polystyrene applied as a solution in trichlorethylene and slowly dried at 95-100 C. Catalysts may be added. The electrode is applicable to storage cells and fuel cells, but is specifically described in connection with an air-depolarized zinc/alkaline cell which is illustrated.
Patent GB-1498625-A (GB)
Title: Tunnel linings
IPC: E21D11/08
Filed: 1975-05-22
Abstract: 1498625 Tunnel linings EDMUND NUTTALL Ltd 22 May 1975 [11 Sept 1974] 39649/74 Heading E1F Segments 11 of e.g. concrete having holes or slots 17, 18 in the intrados face and extending in the intrados face to each edge 13, 12, are held together to form a tunnel lining by holding devices, each being force fitted into two aligned slots or holes 17, 18, preferably so that the devices are flush with the intrados face of the tunnel lining. Each holding device (Fig. 6) may be moulded from nylon or other plastics material. The holes or slots 17, 18 may be of keyhole shape, the holding devices consisting of a central web 20 joining enlarged end sections 21. Each end section 21 comprises a head 22 from which extends a shank 23 carrying four vanes 24 which are tapered inwardly at their ends remote from the head 22. In a tunnel lining, the segments 11 are connected in rings, a keystone segment 15, having offset holes 18a, being situated at the top of a ring. The extrados faces of the segments may be provided with hollows 14.
Patent GB-339817-A (GB)
Title: An improved process of and means for drying goods
IPC: D06B15/00
Filed: 1929-12-30
Abstract: 339,817. Bennet, R. Dec. 30, 1929. Drums, stationary; air and gases, controlling direction oj flow, circulation, temperature, and pressure of; heating-fittings.- Moisture in materials of a cellular structure such as wood is extracted by subjecting it to the action of a gas under pressure in a vessel and then quickly reducing the pressure of the gas. The gas dissolved by the moisture during the high pressure stage is again liberated on lowering the pressure, forcing out the moisture retained by capillarity in liquid form. The process is described as applied to wood treated with carbonic acid. The wood is stacked on carriages 2 in a gas-tight vessel T and before being subjected to pressure may be heated by moist air. The air passes from a tank B, containing a fan and a heater, through a moistener 14 into a conduit 4 with an adjustable opening 5 and is drawn by suction boxes 6' and returned through a condenser K, into the tank B. Both the heater and moistener are supplied with steam from a main 10. Carbonic acid is then introduced at atmospheric pressure from a gasometer G and the pressure is raised to about 3 atmospheres by an air pump LP, the circulation being effected still by the fan in tank B, and' the temperature regulated by the heater therein and the moistener 14. The pump LP is then stopped and valve V1 opened thus reducing the pressure in vessel T and drawing carbonic acid through a condenser K2 back into the gasometer. On reducing the pressure still further below atmospheric by means of the pump the pushing action of the gas on the capillary moisture is increased. Reduction of the pressure in the vessel T may be effected by connecting it to a similar evacuated vessel. The water drains into a receptacle S. Different pumps may be used for suction and pressure.
Patent GB-1212238-A (GB)
Title: Drain rods
Inventor: PEAKE JAMES WILLIAM
IPC: E03F9/00
Filed: 1968-06-24
Abstract: 1,212,238. Drain-cleaning rods; rod couplings. J. W. PEAKE, [trading as MIDLAND ROD CO.]. 26 June, 1969 [24 June, 1968; 21 Aug., 1968], Nos. 29915/68 and 39986/68. Headings F2G and F2N. A resin bonded glass fibre rod 16, for use when clearing blocked drains, is surrounded by a flexible plastics tube 15, the end of which is received in the bore 14 of a screw-threaded ferrule 10 by which the rod can be secured to a ferrule of another rod, and to which the tube 15 is secured by a rivet 17. In an alternative embodiment (not shown) the rivet 17 passes through a metal sleeve on the end of rod 16, the rod being equal in length to tube 15. The tube may be formed from polypropylene or polythene.
Patent GB-1352537-A (GB)
Title: Dynamo-electric rotational speed sensor for example in vehicle  braking systems
IPC: G01P3/488
Filed: 1971-08-27
Abstract: 1352537 Dynamo-electric generators DAIMLER-BENZ AG 27 Aug 1971 [4 Sept 1970] 40285/71 Heading H2A In a tachogenerator in which the stator support 19 is liable to be eccentric relative to the rotor driving member, the stator (13) and rotor (17) axes are maintained in alignment by bearings 18, the stator being resiliently mounted on its support 19. In Fig. 2 the stator 13 is carried by two bent leaf springs 23 attached to opposite ends of a pin 21 slidable and rotatable in a hole 22 in the stator support 19. In a modification (Fig. 4, not shown), in which toothed planar stator and rotor surfaces 15, 16 are designed to be in sliding contact during operation of the generator, the leaf springs (28) also exert axial force on the stator.
Patent GB-1020237-A (GB)
Title: Means for holding in particular, small components, screws, etc.
IPC: A47B88/48
Filed: 1962-10-25
Abstract: 1,020,237. Containers. A. WILHELM. Oct. 25, 1962 [Oct. 28, 1961; July 24, 1962], No. 40369/62. Heading B8P. A plastics container 1 is arranged in a housing so as to tilt forward about hinge pins 4, engaging in bearing cradles 22, and it continues to tilt until stop dogs 5 come into contact with plates 14. Support and guide plates 13 are integrally formed with the rear wall and top of the housing, and the triangular bearing and stop plates 14 are integrally formed with a common base 15. By replacing the plates 14 by plates 14<SP>1</SP> the container may be tilted to a lesser or greater amount. A handle 9, for opening the container, consists of triangular guide supports 31 directly joined to the container side walls and a holding plate 30, and serves as a base to enable the container, removed from the housing 2 to be stacked (Fig. 5, not shown). On removal of the container from its housing the stop dogs 5 pass through the gap 36. The container may also be arranged in a steel cabinet and closed by a locking device. The container may be suspended (Fig. 8, not shown) by a bracket 56, having arms 57 and 59 and hooks 60, from a suspension rod 55, with the hinge pins 4 tiltably supporting a dust-proof lid.
Patent GB-902846-A (GB)
Title: Improvements in alkaline type electric batteries
IPC: H01M10/32
Filed: 1960-11-25
Abstract: 902,846. Silver batteries. ELECTRIC STORAGE BATTERY CO. Nov. 25, 1960 [Dec. 21, 1959], No.40542/60. Class 53. In a silver battery there is added to the silver electrode or to the electrolyte a heteropolar compound having a hydrophobic group to prevent or minimize gassing and self-discharge. An amount of from 0.001-0.2 grams per gram of silver is used and may be impregnated into the electrode by use of a solvent that is later expelled. Compounds forming a suitable compound by reaction with the electrode are also used. A very wide range of structural formulµ and several specific examples are given. The electrolyte is alkaline, specifically a mixture of sodium hydroxide and zinc oxide.
Patent GB-1253350-A (GB)
Title: Fastener for the bonnets of motor vehicles
IPC: E05B65/19
Filed: 1970-08-24
Abstract: 1,253,350. Stud and socket fastenings. DZUS FASTENER CO. Inc. 24 Aug., 1970 [17 Sept., 1969], No. 40566/70. Headings E2A and E2B. In a stud and socket fastening a stud 30, Fig. 1, has a helical cam slot 31 at one end thereof and, having a screw-threaded portion 32 which receives nuts 33, 34 thereon, is attached to a vehicle chassis 35, and a socket fastening has a housing 10 having a portion 20 thereof which supports a pin 21, Fig. 3, for engagement with the cam slot 31 in the stud 30 and carries a retaining washer 24 thereon, the housing 10 also being provided with a handle 11. The pin 21 is attached by means of members 22, 23 to the housing 10. The part 20 of the housing 10 is passed through an opening 37 in a bonnet 13, clearance being provided to allow rotation of the housing by means of its handle 11. A coiled compression spring 12 serves to maintain the pin 21 in engagement with the slot 31 and, on release of the fastening, urges the housing 10 away from the bonnet 13 and from the stud 30. A pad 36 may be provided to facilitate rotation between the housing and the bonnet.
Patent GB-1363649-A (GB)
Title: Invalid carrieages
IPC: A61G5/04
Filed: 1971-11-24
Abstract: 1363649 Electric motor wheels DUDLEY CONTROLS Ltd 24 Nov 1971 [24 Aug 1970] 40716/70 Heading B7H In an invalid carriage having a motorized wheel in which a wheel body is mounted on a carriage frame, a motor unit and a driving pinion connected thereto are mounted to be together displaceable to bring the pinion into and out of engagement with a driven gear connecnected to the wheel body. In a preferred embodiment the wheel body having a hollow hub 1 is rotatably mounted on an axle 6 fixed to a frame (not shown) of a wheel chair and the hub is closed by the circular plate 7 fixed to the axle 6. Two driving pinions 10 which are each driven by respective electric motor units 9 are engageable with an internally toothed gear 8 fixed to the interior of the hub 1. The units 9 and pinions 10 are mounted on respective plates 11 which are supported by pivot pins 12 on the plate 7. The plates 11 and thus the pinions 10 are urged into engagement with the gear 8 against the action of springs (not shown) by means of a cross piece 15 pivotally mounted on the plate 7 and turned by a manually or otherwise adjustable control arm 13. In a modification the ring 8 takes the form of a chain having transverse pins and fixed in an annular slot in the hub 1. In another embodiment, Fig. 3, only one drive device 9, 10 is provided and the plate 11 is bolted to an eccentric 21 which is mounted in a bore through the plate 7 so as to be turnable by the lever 13 for engagement and disengagement of the drive device 9, 10 with the ring 8. The plate 7 is fixed to the wheelchair body by way of a stub shaft 24 fixed to the plate 7.
Patent GB-1435576-A (GB)
Title: Bearing assemblies
IPC: F16C27/04
Filed: 1973-08-29
Abstract: 1435576 Bearings MOTOREN-UND TURBINEN-UNION MUNCHEN GmbH 29 Aug 1973 [31 Aug 1972] 40741/73 Addition to 1212599 Heading F2A A bearing assembly comprises a rolling contact bearing supported by inner and outer support members of which one is fast with a race of the bearing, one of the members having an annular radially-projecting imperforate flange 9 and the other having a co-operating annular recess receiving the flange, there being annular hydraulic fluid chambers 11, 12 on opposite sides of the flange, each chamber being provided with a respective inlet for supplying fluid under pressure and a respective outlet whereby in each chamber an hydraulic cushion can be formed, which cushions allow limited axial and radial movement between the support members. A basic unidirectional axial loading on the bearing can be resisted by supplying fluid at a higher pressure to one chamber 12 and throttling the outlet line 16. Alternatively, each chamber may receive fluid at the same pressure, but the areas of the two axially-facing surfaces of the flange 9 may differ.
Patent GB-1152270-A (GB)
Title: Improvements relating to apparatus for Zone-by-Zone Melting of Crystals and/or for pulling Crystals from a Melt
IPC: C30B15/30
Filed: 1967-09-06
Abstract: 1,152,270. Zone-melting, &c. SIEMENS A.G. 6 Sept., 1967 [8 Sent, 19661, No. 40831/67. Heading B1S. A plurality of individually complete units for floating-zone-melting or crystal-pulling of silicon are mounted around a single support, which may be in the form of a cylinder or of a right prism with square base. Each unit may be a vibration-free zone-melting unit including a pair of sliding carriages which are operated by play-free ball-roll spindles and which carry upper and lower rotatable shafts driven by play-free worm gear. One or more of the units may be modified by removing the lower shaft for use in crystal-pulling.
Patent GB-1124935-A (GB)
Title: Cellular products made of polyolefin and method of manufacturing same
IPC: C08J9/00
Filed: 1965-09-24
Abstract: Cellular products made from polyolefines are characterized by the presence of at least two polyolefines, one of which is non-crystalline and pasty, rubbery or fluid under ordinary conditions and another of which is crystalline. The non-crystalline polyolefin is a polyisobutylene of low molecular weight, a sulphochlorinated polyethylene, an ethylene-propylene copolymer rubber or a terpolymer rubber of ethylene-propylene and a third monomer.  The crystalline polyolefine may be high or low density polyethylene and a filler such as litharge or asbestos may be incorporated.  The compositions are rendered cellular by incorporation of a solid blowing agent such as N,N1-dimethyl-N,N1 - dinitroso - terephthalamide, N,N1-dinitroso - pentamethylene - tetramine or a mixture thereof, or a volatile solvent such as tetrachlorethane, methyl ethyl ketone, cyclohexanone or chloroform, and blowing by heating in a mould.  The products may be modified by high energy irradiation, by cross-linking with peroxides or by polymerizing monomers such as methyl methacrylate, butyl acrylate and divinyl benzene incorporated in the mix. The compositions containing litharge may be used as the joints of pipes for transporting radio-active liquids, for insulation against X-rays or for slowing down neutrons, and the compositions containing asbestos may be used to produce joints which will withstand a temperature of 180 DEG  C.
Patent GB-1159035-A (GB)
Title: Methanol Synthesis.
Inventor: GALLAGHER JOHN THOMAS
IPC: C07C29/151
Filed: 1965-09-27
Abstract: 1,159,035. Methanol synthesis. IMPERIAL CHEMICAL INDUSTRIES Ltd. 26 July, 1966 [18 Aug., 1965; 27 Sept., 1965], Nos. 35368/65 and 41002/65. Heading C2C. Methanol is prepared by reacting carbon monoxide or carbon dioxide or both with hydrogen at a pressure in the range 10 to 150 atmospheres and a temperature in the range 160 to 300 C. in the presence of a catalyst containing the oxides of copper and zinc and at least one difficultly reducible oxide of at least one other metal from Groups II to IV of the Periodic Table, removing methanol from the reaction mixture and recycling unconverted reactants to the catalyst. The term " oxides " as applied to the catalyst composition is defined as the reduction product of the initial mixture of metal oxides under the conditions of the synthesis process. The catalyst preferably contains at least 20% (by metal atoms) of copper, less than 70% zinc and 4 to 20% of the other metal oxide or oxides, e.g. alumina, magnesia, titania, zirconia, ceria or thoria. The feed gas for the process preferably contains 1-20% by volume of carbon dioxide and up to 10 times the stoichiometric concentration of hydrogen required to react with all the carbon oxides present and may be prepared in a primary hydrocarbonsteam reforming process. The process is exemplified using a catalyst comprising the oxides of copper, zinc and aluminium.
Patent GB-978943-A (GB)
Title: Improvements in or relating to motion picture transmission system
IPC: G03D15/00
Filed: 1961-11-16
Abstract: 978,943. Cinematographic projection. C. MICHELSON. Nov. 16, 1961 [April 13, 1961], No. 41066/61. Headings G2E and G2J. A process for projecting a cinematograph film 4 in which two successive photograms 11, 12 are spatially separated from each other by an interval 13 which is an integral multiple of the length of a photogram, comprises producing such diffraction images 9 of the photograms in space so that there are no spaces between successive photograms in the image. A diffraction grating 5 is used in which the lines are perpendicular to the film path and which is arranged in the conjugate plane of a lamp 1, (which illuminates two successive photograms on film 4), with respect to optical system 2, 3.
Patent GB-1475318-A (GB)
Title: Method for differentially counting leukocytes and other cells
IPC: G01N15/00
Filed: 1974-04-19
Abstract: 1475318 Testing blood BLOCK ENG Inc 19 April 1974 [31 May 1973 30 Jan 1974] 41066/76 Divided out of 1475317 Heading G1A A system for differentially counting leukocyte types randomly distributed in a blood medium comprises (a) means (not shown), for staining the leukocyte types with a dye composition comprising a plurality of dyes, at least one of the dyes imparting a first fluorescence to the nuclei of all leukocytes and another dye imparting a second fluorescence to some leukocyte types, (b) flow means 52 through which the stained leukocytes in the blood medium under test are to pass in single file, (c) source means 54 &c. for illuminating the stained leukocytes passing through the flow means, with radiation in the characteristic absorption wavelength region of each of the dyes, and (d) detection means 81, 74, 80 optically coupled to the flow means for detecting the leukocytes passing through the flow means in single file, the detector means distinguishing and counting the leukocyte types according to the relationships between the intensities of the radiation emitted by each leukocyte type in characteristic emission wavelength regions. In the embodiment shown, source 54 is a mercury arc lamp, and the radiation passes through collimating lens 56, reflecting filter 58, for example a dichroic filter, condensing lens 64 or 72 to focus on capillary tube flow path 52 at 62 or 70. Photo-multipliers 74, 80 and photo-diode 81 detect emitted radiation in different respective wavelength ranges and the signals from the photo-electric devices are passed to processor 86 where in the embodiment described there is calculated the ratio of the measured intensities of radiation of green and of red wavelengths to distinguish the different leukocyte types for counting. Display device 88 shows the results. In a related embodiment, Fig. 1 (not shown), the leukocytes are stained in the form of an alcoholfixed blood smear on a slide and the incident and transmitted radiation paths each include a filter wheel (18, 28), which carries two filters capable of transmitting light in different wavelength bands. The detection system comprises an image scanning device. The invention may be used to distinguish and count erythrocytes, reticulocytes and leukocyte types in a blood sample.
Patent GB-1001544-A (GB)
Title: Improvements in or relating to fluid amplifiers
IPC: F15C1/08
Filed: 1961-11-16
Abstract: 1,001,544. Heating buildings. HONEYWELL Inc. Nov. 16, 1961 [Nov. 16, 1960], No. 41073/61. Heading F4U. [Also in Division G3] The hot water from a boiler 11 is fed to a fluid amplifier (see Division G3) which is controlled by a thermostat 12 to supply or by-pass a radiator 22.