baber/WOPTO huggingface dataset:
Patent GB-1500203-A (GB)
Title: Cluster storage apparatus
IPC: G06V30/262
Filed: 1975-04-30
Abstract: 1500203 Error correction apparatus for use in character recognition INTERNATIONAL BUSINESS MACHINES CORP 30 April 1975 [8 Oct 1974] 17907/75 Heading G4R Alphabetical characters from an OCR device, a speech decoder or a keyboard are allotted values L N  which are used to access a dictionary. The allotted values are chosen so that the sum of the values #L N  allotted to the characters in a correct word is of a similar order to the sum of the values #L N  allotted to a word which has a high probability of being an incorrect version of the word. An incorrect word obtained from the OCR device, speech decoder or keyboard is fed to a word separation detector 34 and to a character value store. The detector 34 determines the start and end of each word and feeds a character counter 36 which determines the number of characters in the word and feeds this value as an address to a Read Only Store 56. The characters fed to store 40 obtain the allotted values which are fed to Register 42, Adder 44 and Register 46 where the sum #L N  is produced. The Read Only Store 56 forms a dictionary containing the correct words arranged in order of their sums #L N  and arranged in groups according to the number of characters in the word (Fig. 5, not shown). The same word may be stored in different groups because individual letters in a word may have a tendency to be read as two letters in the OCR device or two adjacent letters may be read as one letter. If the allotted values are suitably chosen the correct word corresponding to an incorrect word will be in an area of the read only store close to the address produced by the sum #L N  and in the group corresponding to the number of characters. The sum #L N  is fed to a subtractor 48 where a fixed value #, e.g. 250 is subtracted from the sum and the result is fed to an adder where values 0-2# are successively added to access 2# + 1 memory locations. The dictionary words obtained can then be compared with the incorrect word to obtain the closest match as disclosed in Specification 1,454,148. The input word may be deduced to be incorrect by using the memory of Specification 1,499,734.
Patent GB-546625-A (GB)
Title: Improvements in and relating to air or gas blast electric switches
IPC: H01H33/16
Filed: 1940-12-20
Abstract: 546,625. Gas-blast. switches. HENLEY, J. A., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Dec. 20, 1940, No. 17926. [Class 38(v)] A gas-blast switch of the kind wherein a lateral blast urges the arc into an arc chute has an auxiliary contact arranged adjacent the path of movement of a main contact and connected with the co-operating main contact through a resistance the value of which is high in'relation to the arc-resistance, so as to restrict the rate of rise of recovery voltage. The arrangement of the chute and blast is such that the arc is extinguished before the moving contact moves past the auxiliary contact. The latter contacts are initially separated by a negligible air-gap and a separate blast is provided for quenching the relatively-small, resistancecurrent arc when the movable contact is drawn beyond the auxiliary contact. In the application to the switch of Specification 526,429, wherein a chute comprises side plates, as 5, end plates 7, 8, one or more barriers 14, and stacks 15, 16 of copper cooling-plates, the fixed contacts are housed in a metal box 33 on a base 9 carrying the air-supply pipe 12 and a' block 6 which has a channel closely surrounding the movable contact 2. The auxiliary contact 17 is adjustably mounted in a plate 20 on an arc-resisting insulating plate 21 on the block 6, so that its clearance from the contact 2 can be adjusted, a lead 26 connecting it to the resistance, Fig. 3 (not shown). When the contact 2 moves past contact 17, an opening 27 for the blast is freed and the resistance-arc quenched. The exhaust pipe 28 may lead, as shown, into the upper part of the chute, or direct to atmosphere. Insulating material exposed to the arc may be of the kind which evolves gas, for example, fibre, ebonite, or thermoplastic synthetic resins. The fixed contact members comprise pairs of contactfingers 34, 35 which are pivoted to a pin 36 and urged by compression springs 39 against opposite sides of contact 2. The arc is transferred by the blast to an arcing tip 46 on contact 2 and a renewable fixed arcing tip 44, for example, copper-tungsten.
Patent GB-392005-A (GB)
Title: Improvements relating to observation mirrors for use on motor vehicles
IPC: B60J3/02
Filed: 1932-06-25
Abstract: 392,005. Look-out reflectors for vehicles ; picture and like frames. MICROVERNIER, Ltd., CHESTON, A. S., and STRETCH, D., Tower Works, Bagot Street, Birmingham. June 25, 1932, No. 17958. [Class 103 (ii).] A mirror 1, particularly an observation mirror for motor vehicles, is supported by two separated sheetmetal plates 2, 3 or like members having integral hooks or claws 5 engaging over opposite edges of the mirror, the plates being drawn towards one another by a spring or springs 9 co-operating with headed pins 8 slidable in holes in opposed lugs 7 on the plates. Attachment lugs 10 on one plate are connected by screws 11 to fixed brackets 12, one bracket 12 having a slotted extension 13, 14 so that the mirror may be set at different angles.
Patent GB-241984-A (GB)
Title: Improvements in the manufacture of coated metallic conductors
IPC: H01J9/04
Filed: 1924-07-28
Abstract: 241,984. General Electric Co., Ltd., and Smithells, C. J. July 28, 1924. Vacuum tubes.-A coating of electron-emitting material is applied to a conductor by reducing the material, suspended in a liquid, to a fine state of subdivision by means of a colloid mill, covering the conductor with the suspension, and drying it. The coating consists preferably of carbonates of the alkaline-earth metals, the conductor being heated subsequently in a vacuum or neutral atmosphere to reduce the carbonates to oxides. Five such coatings are generally sufficient, but a larger number, for instance fifty, may be aipplied. Specification 694/90 is referred to.
Patent GB-120991-A (GB)
Title: Improvements in Built Up Box Girders of Wood.
Inventor: WALKER FREDERICK THOMAS
IPC: B64C1/06
Filed: 1917-12-05
Abstract: 120,991. Walker, F. T. Dec. 5, 1917. Framework.-Wooden box girders consist of sides a, either laminated or of single thickness, and upper and lower booms c, either flanged to cramp the sides against distance pieces b, Fig. 1, or grooved to receive the sides as shown in Fig. 3. The several members are made up of lengths arranged to break joint longitudinally; the members b, c have sloping or scarfed joints, and the laminated sides may be built up of diamondshaped pieces with the grain running diagonally to the length of the girder and in reverse directions on adjacent lamimµ. Metal rods e or other material may be used to reinforce the joints as desides a, either laminated or of single thickness,. scribed in Specification 119,525, [Class 145 (ii), Wood, Working].
Patent GB-860601-A (GB)
Title: Improvements in fluid control valves
IPC: G05D23/02
Filed: 1957-06-06
Abstract: 860,601. Valves. FLEXONICS CORPORATION. June 6, 1957 [June 7, 1956], No. 18049/57. Class 135. [Also in Group XIII] A thermostatic valve suitable for use in the cooling system of an automobile engine comprises a normally closed coil spring 28, to one end of which is secured a member 30 formed with a port communicating with the space inside the spring, the other end of the spring being closed and being connected to the first end via a temperature-responsive element 42 which stretches the spring when the temperature rises above a predetermined value and thus spaces apart the coils of the spring to provide a flow path through the port and between the coils of the spring to the space around the spring. The spring coils in their closed condition are permeable to air, this feature facilitating the filling of the engine water jacket with water for the first time. The temperature-responsive element may be as described in Specification 507,501, i.e. it expands on being heated but does not readily contract on being cooled, the force of expansion being transmitted through a rubber plug 48 and plunger 50 connected to member 30. Vibration of the valve is damped by a sinusoidal spring 70 which bears frictionally on the coils of the valve spring.
Patent GB-1287694-A (GB)
Title: Camera exposure time control circuit
Inventor: MIYAKAWA SEINAN
IPC: G03B7/089
Filed: 1970-04-15
Abstract: 1287694 Photo-electric control of exposure time ASAHI KOGAKU KOGYO K K 15 April 1970 [17 April 1969] 18056/70 Heading G2A An exposure time control circuit for a camera has a logarithmically compressed signal representative of photographic information, e.g. film speed, diaphragm aperture setting generated by 7, 8, 9 applied to one side P of a first capacitor 6, a logarithmically compressed signal representative of scene brightness, generated by 1, 2, 4, applied to the other side of capacitor 6, a second capacitor 16 connected to be charged or discharged from a constant voltage source 13 through a diode 15 upon shutter release, and a high input impedance switching means 18, 20 which switches to close the shutter when the voltages on the capacitors are in a predetermined relationship, e.g. when the voltages are equal. The scene brightness signal is applied through a switch 5 which is opened immediately prior to shutter release, the signal being stored on capacitor 6, and photo-resistors 1 may thus be disposed to receive light through the objective of a single lens reflex camera. A meter 22 indicates the resulting exposure time. Switch 5 may be opened independently of the release operation and an exposure time manually set by resistor 23. In embodiments, Fig.2 (not shown), the second capacitor 16 is connected in parallel with diode 15 to be discharged therethrough in response to shutter actuation, Fig.4 (not shown), the signals representative of scene brightness, film speed, and aperture setting are applied to the first capacitor over a common line, and Fig.5 (not shown), switching transistors 18 are replaced by a field effect or uni-junction transistors 30, which transistor has a negative temperature coefficient of resistance to compensate for the positive temperature coefficient of diode 2, 15.
Patent GB-120800-A (GB)
Title: Improved Method of and Means for Grinding or Milling Round Bars and like Cylindrical Objects.
Inventor: PAIGE WILLIAM ROBERT
IPC: B24B5/38
Filed: 1917-12-07
Abstract: 120,800. Paige, W. R. Dec. 7, 1917. Disk apparatus.-Round bars &c. h are ground or milled, while slidably supported in an adjustable guide e by a rotating tool a having a helically formed working surface, so that they are rotated and fed longitudinally as they are being operated upon.
Patent GB-184339-A (GB)
Title: Improvements in and relating to circular knitting machines and the manufacture of goods thereon
IPC: D04B9/26
Filed: 1921-07-05
Abstract: 184,339. Lacey, W., and Widdowson, T. July 5, 1921. Circular machines fitted with vertical striping or patterning attachments of the kind described in Specification 12552/08 and comprising dependent thread-guides A which are selected and operated so as to feed patterning threads to certain of the needles, are provided with a supplementary or pattern cam H which may be caused to vary the number of guides in action thus facilitating the production of fancy outlined figures, as shown in Fig. 6, on hosiery &c. Radially-sliding instruments C with inclines C' which displace laterally the guides A projected by the cam B, to cause them to wrap their threads round the needles are operated by a cam E situated above the dial D and carried by a rotary sleeve G. The guides A are each provided with a butt A<1> and the butts are disposed in groups at different levels. A cam H, the rise H' of which may operate some or all of the butts A<1> so as to prevent the corresponding guides from wrapping their threads round the needles is splined on a sleeve. J rotating with the cam E and can be moved up and down by a fork L under control of a pattern chain &c. By lowering the cam H step by step, the whole or the greater part of the guides can be gradually put out of action. If a narrow cam is used, isolated groups or individual guides can be put in or out of action according to the position of the cam.
Patent GB-1101836-A (GB)
Title: Process for dyeing fibrous materials with water-soluble ester salts of leuco vat dyestuffs
IPC: D06P1/28
Filed: 1965-04-30
Abstract: Fibrous materials of natural or synthetic fibres are dyed with lenco vat dyes without using oxidising agents by applying to the fibrous material an aqueous preparation of an ester salt of a lenco vat dye, drying the material and subsequently heating the material for 5 seconds to 4 minutes at 170 DEG  to 240 DEG C.  The aqueous preparation may also contain an inorganic or organic acid or a salt thereof, e.g. ammonium which splits off acid on heating, or mixtures thereof and the pH of the preparation preferably does not exceed 5. The preparation which may also contain ethylene oxide/nonyl phenol condensates may be used as a printing paste or padding bath.  Fibrous materials referred to include cotton, wool, silk, linear polyesters, polyamides and polyacrylonitrile and mixtures thereof and the samples describe the dyeing of polyethylene terephthalate and mixtures thereof with wool or cotton and polyamides.
Patent GB-522727-A (GB)
Title: Improvements in and relating to wettable water-repellent solid substances or wettable preparations comprising water-repellent solid substances and to lotions, solutions,or dispersions of water-repellent solid substances in water and to processes for producing said wettable water-repellent solid substances, wettable preparations, lotions, solutions, or dispersions and to compositions comprising the same
IPC: A61Q19/00
Filed: 1938-09-20
Abstract: 522,727. Disinfectants and pesticides; medicines. DICKESON, T. W. Sept. 20, 1938, No. 18291. [Class 81 (i)] [Also in Group III] Water repellent disinfectant pesticidal and medicinal solid substances are rendered wettable by admixture with an insoluble gelatinous metallic hydroxide or oxide. The admixture may be made by intimately mixing the hydroxide and solid substance in the presence of much water and then progressively dehydrating to the required consistence which may extend from a thin solution to a powder. An alternative method is to mix the hydroxide and solid substance together with only sufficient water to form a paste and then to grind the mixture, diluting or dehydrating afterwards to the required concentration. The proportion of hydroxide is from 20-100 per cent. of the solid to be used. Examples of suitable hydroxide ores or oxides are those of aluminium, magnesium, copper, lead and zinc, the last three being prepared by precipitation from copper sulphate, lead acetate and zinc sulphate by caustic soda, ammonia and ammonia respectively. Examples of water repellent solid substances are sulphur, carbon black, derris powder, pyrethrum, thiodiphenylamine, lycopodium, guaiacium carbonate, dry vegetable fibres, synthetic dyes and mustard. Protective colloids such as glue or albumen may be added. These dispersions may be added to emulsions and used as insecticides, disinfectants, preservatives, sheep-dips, blow-fly pest sprays, fumigators, or medicinal preparations for internal or external use. Examples of these products are given which mav contain paraffin oil, cotton seed oil, turpentine, kerosene, carbon tetrachloride, naphthalene, nicotine oleate, cresols and organic thiocyanates such as that sold under the Registered Trade Mark " Lethane 384 " in addition to the metallic oxide or hydroxide and water repellent solid substance according to their uses. Specifications 193,520, [Class 1 (i)], 487.855 and 519,619 are referred to.
Patent GB-571891-A (GB)
Title: Improvements in suitcases, holdalls and the like portable containers
IPC: A45C3/00
Filed: 1943-11-05
Abstract: 571,891. Holdalls. SEBBA, J. Nov. 5, 1943, No. 18387. [Class 133] In a soft leather, stout canvas or like suitcase, holdall or the like, two co-operating lines of sliding clasp fastener elements 17, 18 fitted along the free edges of the lid 5 and the top 8 and ends 7 of the body respectively, are provided with two sliding clasps 20, which are brought close together when the bag is closed and are provided with holes 29 in their tabs to receive a padlock or other fastening device. As shown, two rectangular layers 2, 3 form the base 4, lid or front 5 and back of the bag, the top 8 and ends 7 being formed of two pieces 11, 12 with an interposed bitumen-jute stiffening sheet 10. The seam includes an interposed strip of material 13, the ends of a pair of internal straps 14 and a covering piece 16. The straps 14 are adapted to be buckled to a pair of straps secured at the junction of the base and back of the bag. The ends of the elements 17, 18 are sewn into leather pieces 19. The inside of the lid may be provided with a pair of pockets having a common closure flap secured by press-studs. The handles 25 are connected to reinforcing straps 26.
Patent GB-102972-A (GB)
Title: Improvements in or relating to Screw Down Valves.
Inventor: SCHLAA FRIEDRICH IM
IPC: F16K27/02
Filed: 1916-12-22
Abstract: 102,972. Schlaa, F. Dec. 24, 1915, [Convention date]. Lift valves; seats; casings. - A screwdown valve is constructed with a seat formed as a step-like flattening d on a tube or inlet connexion a which is closed at its inner end and is inserted into the valve casing b and secured by a flange o, as shown. The lateral walls of the seat member are closely surrounded and supported by the valve casing which may be made of sheet metal or of cast metal. The nut m carrying the screw spindle is secured on the flanged extension i by a cap k, which also encloses packing for the spindle.
Patent GB-440490-A (GB)
Title: Covering for cables
IPC: H01B7/282
Filed: 1934-06-22
Abstract: 440,490. Electric cables. ALLGEMEINE ELEKTRICITATS-GES., 2, Friedrich Karl-Ufer, Berlin. June 22, 1934, No. 18531. Convention date, June 22, 1933. [Class 36] Cables are provided with a protective covering comprising polymerisation products of acrylic acid, its derivatives or homologues. The polymerisation product is used alone or with an admixture of filling substances and is applied, either by spraying or wrapping or in similar manner, to the insulated threads of the cable with, if required, filling insertions. A pad of jute or linen sheets, is interposed in the covering and a metal braiding applied to the outside. Reference has been directed by the Comptroller to Specifications 340,677, 392,416, and 398,225, (as open to inspection under Sect. 91 of the Acts).
Patent GB-749961-A (GB)
Title: Improved scoring rack for table games, particularly games requiring concealment by individual players of the obverse faces of playing pieces allocated thereto
IPC: A63F3/04
Filed: 1954-06-24
Abstract: 749,961. Games scorers; cards &c. holders. BRUNOT, J., and BRUNOT, H. [trading as PRODUCTION & MARKETING CO]. June 24, 1954 [Sept. 8, 1953], No. 18565/54. Class 132(2) .A combined scoring device and playing piece holder comprises a plastic moulded blocklike rack having a top wall 11, a rear wall 12 and a double curved front wall 13 shaped to provide a trough 15 for receiving playing tiles 20. A series of openings 25, marked with indicia, in the top wall 11 and engaged by pegs 27, are used for scoring. Projections 32 are provided at the ends of the trough to prevent end tiles falling out. The device may be hollow as in Fig. 3 or made of wood when it is not necessarily in one piece.
Patent GB-1412393-A (GB)
Title: Force balanced valve spool
IPC: F16K11/07
Filed: 1974-04-29
Abstract: 1412393 Valves CATERPILLAR TRACTOR CO 29 April 1974 [30 April 1973] 18636/74 Heading F2V An axially slidable valve spool 18 having two spaced lands 20, 22 which in the neutral position block off flow from non-annular inlet port 16 to work ports 54, 56 includes an annular rib 30 disposed between lands 20, 22 such that when the spool is moved into a work position, shown, working fluid leaving port 16 is guided in a direction substantially perpendicular to the direction of motion of the spool. Thus the tendency for the spool to be urged to the open position by the fluid is reduced. Several axially spaced ribs 30 may be provided.
Patent GB-353194-A (GB)
Title: Improvements in and relating to the manufacture of indiarubber-like products
IPC: C08L7/00
Filed: 1930-06-19
Abstract: Rubber-like products are prepared by incorporating with unvulcanized rubber, polymerized nonliquid vinyl derivatives, and subsequently vulcanizing the mixture.  The polymerization of the vinyl compounds is carried on until they lose practically no volatile products by dessication.  The non-vulcanized rubber may be in the form of latex, gum, or solution.  In an example 0,02 per cent of benzoyl peroxide is added to vinyl acetate and the mixture heated under reflux for 4 hours.  The semi-solid mass is incorporated with rubber in known manner.  If the reaction is stopped at an earlier stage a viscous paste is obtained.ALSO:Rubber-like products are prepared by incorporating with unvulcanized indiarubber, polymerized, non-liquid vinyl derivatives, and subsequently vulcanizing the mixture.  The polymerization of the vinyl compounds is carried on until they lose practically no volatile products by dessication.  The non-vulcanized rubber may be in the form of latex, gum, or solution.  In an example, 0,02 per cent of benzoyl peroxide is added to vinyl acetate and the mixture heated under reflux for 4 hours.  The semi-solid mass is incorporated with rubber in known manner.  If the reaction is stopped at an earlier stage a viscous paste is obtained.
Patent GB-876546-A (GB)
Title: Pump, compressor or motor
IPC: F01B1/06
Filed: 1959-06-02
Abstract: 876,546. Liquid-pressure engines. DENTATUS A.B. June 2, 1959 [June 24, 1958], No. 18812/59. Class 69 (2). [Also in Groups XXVI and XXVIII] A liquid-pressure engine comprises a stationary central valve member, having axial inlet and outlet conduits 15, 16, on which is rotatably mounted a cylinder block 17 and a ring 4, the axis 5 of the ring being eccentric to the axis 11 of the valve and block. Radially arranged pistons 19 are housed in the cylinder block and a ball 21 is provided between each piston and the ring, the pistons being urged outwards by springs 23. The pistons are provided with concave recesses 22 to receive the balls or this recess may be provided in the ring. The balls act as locking members between the pistons and rings such that on rotation of the cylinder block or ring both members will rotate together. Means may be provided for manually adjusting the eccentricity of the ring and cylinder block from a positive valve to a negative valve thus varying the stroke of the pistons. In a modification the pistons are formed as balls which themselves also act as the locking members.
Patent GB-281197-A (GB)
Title: Catch or lock for bags, handbags, cases and the like
IPC: A45C13/06
Filed: 1927-07-16
Abstract: 281,197. Bloudicek, A. July 16, 1927. Clips and clamps, pivoted-jaw ; fastenings for bags; hook fastenings. -A pivoted spring- actuated catch 10 for handbags &c. has a transverse tongue 14 adapted to engage a corresponding groove 6 in the co-operating member 3. The member 10 which is pivotally mounted on a plate secured to one portion 8 of a bag &c., has a bent portion 15 acted on by a plate spring 13 which holds member 10 in the open position shown, end in the closed position. Member 3 is suitably secured to the other part 4 of the bag with the groove 6 parallel to the edge thereof. In a modification the pivoted member secured to one topframe member of a handbag is of L-section to embrace, when closed, the edge of the other frame member, in the top edge of which is provided the groove engaged by a tongue on the pivoted member.