baber/WOPTO huggingface dataset:
Patent GB-1354993-A (GB)
Title: Pattern processing apparatus
IPC: G06V10/24
Filed: 1972-07-12
Abstract: 1354993 Pattern and character recognition systems TOKYO SHIBAURA ELECTRIC CO Ltd 12 July 1972 [15 July 1971 (2)] 32548/72 Heading G4R [Also in Division H1] An image converter tube for use in character or pattern recognition apparatus, comprises a photo-cathode for converting an input optical image into an electron image, an array of output electrodes, a zoom lens for focusing the electron image on the output array with variable magnification, and means for deflecting the electron image so that a selected portion may be centred over the array. The output electrodes may be arranged in a 32 x 32 matrix. Pattern identification, Fig. 3.-Cancer cells may be identified in a photograph of dyed cells which is projected on the photo-cathode 31. The output signals on lines 39 (of which five are shown to represent the array of.32 Î 32) are fed to units 37 where they are compared with the maximum signal detected by unit 35. The outputs of the comparators 37 are transformed to binary signals by quantizing circuits 38 which indicate the co-ordinate of the area of maximum signals. These co-ordinates are transformed into deflection signals which are fed to the deflection coils to centre this area on the output electrodes. When the output of unit 35 exceeds a threshold value a zoom command increases the magnification of the focusing coils so that a magnified image of the selected area is projected on to the output electrodes which feed known processing circuits 32-34 which identify the pattern, and after this has been done a signal from unit 34 to focus control 44 restores the initial conditions. Character recognition, Fig. 5.-A pattern including a number of digits or letters is projected on to the converter tube 51, of which the output leads 52 are illustrated as a 5 Î 5 matrix. The signals on the leads are quantized into ones and zeroes in unit 53 and passed to an OR gate matrix 54. The vertical and horizontal projections of the digits are formed in registers 59, 60, Fig. 7B. Registers 59, 60 feed unit 61 which moves the image upwards and to the left until a " one " is present at the end cells of registers 59 and 60 (Fig. 7D, not shown) indicating that a digit is located at the top left corner as required. The height of the digit is measured by unit 69 which counts the number of " ones " in register 64, and the lens control 70 is operated to enlarge the digit to a standard height, whilst at the same time the deflection control 61 is adjusted so that the enlarged image of the digit remains at the top left corner. An isolating circuit 71 controlled by registers 59 and 60 allows signals from conductors 52 corresponding to the selected enlarged digit, and only those signals, to pass to a recognition circuit 76 of known type; when the operation is complete, a signal to control circuit 61 prepares the apparatus for reading the next digit or letter.
Patent GB-1023544-A (GB)
Title: Process and apparatus for the electrowinning of copper
IPC: C25C5/02
Filed: 1962-08-24
Abstract: Cu powder, e.g. 99.9% pure, is electrodeposited from an H2SO4-H2O-Cu electrolyte in <PICT:1023544/C6-C7/1> <PICT:1023544/C6-C7/2> a cell having alloy anodes of 88-91% Pb, 9-12% Sb (percentages being by weight) and cathodes of Ni employing a voltage of at least 6 1/4 volts (e.g. 6.25-8 v.) and a cathode current density of at least 125 amps./sq. foot (e.g. 125-250 amps./sq. foot).  The electrolyte contains at least 15 g./l. Cu and at least 45 g./l. free acid and is at a temperature of 15-60  DEG C. throughout the electrolysis.  The electrolyte is produced by leaching Cu containing ores using an aqueous sulphate solution containing 8-9% by weight H2SO4 until the Cu content in solution is 25-45 g./l.  The anodes, which may have been electrolytically pretreated in aqueous FeSO4 so that they bear a coating of lead peroxide, are enclosed by bags 82, Fig. 3. Cu electrodeposited at cathodes 103 is collected by hoppers 100. The electrolyte is circulated in the cell by a pump 92, Fig. 2 (not shown), through apertured headers 96, 90.  The electrodes are carried by rods 262, Fig. 5 (not shown), extending across a frame 256 having leaves 258, Fig. 7, which fit between leaves 206 secured to the cell. The leaves 206 can be clamped tightly against the leaves 258 by means of cams 244.  Current is supplied to ends 274. Fig. 5 (not shown), of the leaves 258.  Heat generated in the cell is removed by a heat exchanger 50, Fig. 3. When the electrolyte is spent, it is removed from the cell at 122 and the Cu powder washed through the hoppers 100 by water from nozzles 116, the powder passing through a conduit 102 and out of the cell at 110.  It is then washed by water which has been heated by a part of the heat exchanger 50 outside the cell.  The powder may be heated to a presintering temperature of 495  DEG C. or may be briquetted.  Spent electrolyte from the cell is used for leaching Cu ore and the used heated wash water is passed over partly leached ore to extract further Cu. The leached ore solution fed to the electrolysis cell may contain Al2O3 which accelerates Cu deposition, ferrous Fe e.g. which complexes any Ca and Mg salts present, Na2SO4 where the ore contains CaCO3, a chelating agent of a tetrasodium salt of ethylenediamine tetra-acetic acid and a second chelating agent of H3PO4 to eliminate harmful effects of any ferric Fe. To reduce polarization, D.C. and A.C. may be supplied alternately to the cell. The frequency of cycling between D.C. and A.C. may be controlled.  In plant employing two cells which are operated alternately, the electrolysing current may be automatically switched from one to the other when conductivity and temperature both increase above a certain value.  Circuitry and switching means are described, Fig. 10 (not shown).  The same subject matter as in the present Specification is disclosed in Specifications 1,023,545 and 1,023,546 but the claims differ.
Patent GB-335772-A (GB)
Title: Improvements in and relating to hydraulic variablo speed gears
IPC: F16H39/30
Filed: 1929-10-26
Abstract: 335,772. Brown, J., and Scott, W. E. Oct. 26, 1929. Fixed - abutment type; compensating for irregularity of flow; driving arrangements for motors.-In a hydraulic variable-speed gear comprising a pump and motor, the motor has three working chambers the central one being of the same volume as the other chambers together, the pressure liquid being admitted to the central chamber on one side of the shaft and to the other chambers on the other side of the shaft through ports 32d, Fig. 1, in rings 32 which are rotatably adjustable to vary the speed ratio of the gear. The rotors have radial vanes 31, Fig. 9, held by rings 33 and slotted to take over webs 34b, and are preferably provided with lubricating passages 34d, Fig. 4. The pump may be constructed as in Specification 328,930, or may have one or more rotors of the same construction as the motor rotors with or without adjustable rings 32. The motor exhaust is connected through a cooling device with the pump inlet, and the motor shaft is connected to a further shaft through mechanical reversing gearing.
Patent GB-463746-A (GB)
Title: A process and apparatus for the sintering of concentrates, ores or the like
IPC: C22B1/14
Filed: 1935-11-25
Abstract: 463,746. Sintering ores. HOLMBERG, A. Nov. 25, 1935, No. 32634. Convention date, Jan. 25. [Class 82 (i)] In a process for making a sinter product for subsequent reduction, from concentrates, ores, &c., the particles are forced under pressure through a combustion zone against a wall or the like so that the particles are cemented together into a sinter cake which is removed in order to be subjected to a metallurgical reduction process. A heating chamber 2 is provided with an oil, coal, powder or other burner 2 and the material from a container 5 is forced into the chamber through an intake 4. Preheated air for this purpose is passed into the conduit 6 from a fan 7, the air being heated by exhaust gases from the sinter box 8 which pass through a conduit 12 into a heater 13. Part of the preheated air passes through a conduit 14 to heat the material in the container 5. The material passing from the heating chamber 2 is forced against a wall 9 of the sinter box, the wall being perforated for the admission of air for oxidation and desulphuration. The sinter cake is discharged into a pocket 16. In a modification, the material falls on to the floor of the sinter box consisting preferably of a travelling grate through which air is forced.
Patent GB-751348-A (GB)
Title: Lobe-scanning microwave antenna
IPC: H01Q13/28
Filed: 1954-11-11
Abstract: 751,348. Directive aerial systems. MARIE, G. R. P. Nov. 11, 1954 [Nov. 19, 1953], No. 32640/54. Class 40 (7). A directive aerial system capable of scanning in one dimension comprises a sectoral horn having a very oblique plane of opening filled with a first dielectric substance in which is embedded a plate of a second dielectric substance having a refractive index which is large and varies with the magnetic field applied to it. The system may be mounted in, and flush with the underside of, an aircraft wing. As shown, 1 is the surrounding wing or other structure into which is secured the horn assembly. This is fed from transducer 5 by means of rectangular guide 4 and has two parallel faces 7 and 8 and two divergent faces 9 and 10. A dielectric filling 11, decreasing in thickness as shown, fills the opening of the horn and covers the plate 7. The part of the dielectric extending into the horn is bounded by hyperbola 14 having a foci at F which is the apex of the horn. The dielectric thus converts the cylindrical wavefront in the horn into a plane wave with a propagation direction indicated at 13. A plate 15 of ferrite is arranged against the plate 7 and has the general shape indicated. A magnetic field is induced in this by means of a U-shaped electromagnet making contact with it at its ends. If a sinusoidal waveform is applied to the electromagnet 16 the beam will be deflected sinusoidally in the plane of Fig. 2 between extreme positions such as those shown at 13<SP>1</SP>, 13<SP>11</SP>. A rectangular waveform applied to magnet 16 will switch the beam between the extreme positions.
Patent GB-911366-A (GB)
Title: Improvements in or relating to apparatus for measuring minute angular deflections
Inventor: ROUY AUGUSTE LOUIS MARIE ANTOI
IPC: G01C1/02
Filed: 1958-10-14
Abstract: 911,366. Interferometers; polarimeters. DAYSTROM Inc. Oct. 14, 1958 [Oct. 15, 1957], No. 32750/58. Class 97 (1). In order to measure small angular rotations of, for example, a polarizer 21 in a polarimeter, the rotatable sleeve 41 carrying the polarizer is clamped at 43 to a frame 40, having integral therewith an arm 45. This arm carries a plane parallel transparent plate 20 (for example of black glass) spaced from a transparent plate 19. The adjacent surfaces of these plates have semireflecting coatings thereon and are illuminated by a light beam from a slit 15, this light beam being collimated by a lens 18. As a result an interference pattern is formed in the plate 19 and an enlarged image thereof is produced by a telescope system 23, 24. In the focal plan of the lens 23 is disposed a reticle 25, having index markings 35 thereon, and being adjustable by a micrometric screw 29, so as to bring a marking 35 into coincidence with one of the observed fringes. By counting the number of fringes between any two index markings 35, the angle between plates 19 and 20, and hence the angular rotation of the polarizer 21, can be determined by the formula given in the Specification. On each side of the reticle 25 is disposed a further scale on which appears an image of a wire W reflected into a field of view by galvanometer 61 and prisms 62, 63. An initial adjustment of the fringe spacing is effected by operation of nuts 51, 52 on threaded members which pass through clearance holes in an arm 46 and are fixed in the frame 40, coil springs being provided between the nuts and arm 46. The arm is connected by arm 44 to the frame 40 and is also connected to the arm 45 so that deformation of arm 46 by rotation of the nuts results in alteration of the relative inclination of plates 19, 20. Specification 911,365 is referred to.
Patent GB-737251-A (GB)
Title: Reciprocating pumps
IPC: F04B43/00
Filed: 1953-11-25
Abstract: 737,251. Pistons. MAIHAK AKT.-GES., H. Nov. 25, 1953 [Dec. 2, 1952], No. 32758/53. Class 122 (1). [Also in Group XXVIII] A flexible chamber pump for liquids or gases comprises a piston and cylinder tapered towards the working chamber of the pump and an elastic sleeve therebetween which, on reciprocation of the piston, is deformed to vary the volume of the working chamber. In Fig. 1, the piston 1 and cylinder 3 are of equal taper with a uniform thickness sleeve 2 therebetween bonded to both the piston and the cylinder. Reciprocation of the piston sucks fluid into the working chamber 4 through an inlet valve 5 and discharges it through an outlet valve 6. In Fig. 2, the piston and cylinder are of different taper, the sleeve 2 increasing in thickness towards the chamber 4. In this case bonding is unnecessary since on the delivery stroke of the pump the parts are wedged more tightly together. In a modification, the sleeve 2 may include a closed end 2a, Fig. 4, to which is bonded a metal disc 7 of smooth or corrugated form to protect the sleeve against corrosive fluids.
Patent GB-447279-A (GB)
Title: Improvements in or relating to the handles of hand tools, brushes, cutlery and the like
IPC: A46B5/02
Filed: 1934-11-14
Abstract: 447,279. Toothbrush &c. handles. TOLHURST, F. J., 77, New Road, Gravesend. Nov. 14, 1934, No. 32786. [Class 61 (i)] Tooth - brush, hand-tool, cutlery, &c. handles are provided with oppositely inclined grip facilitating grooves &c. 4 on their opposite edges; these grooves may be continued across the other surfaces of the handle.
Patent GB-1127814-A (GB)
Title: Tape reel holder for tape reeling devices
IPC: B65H75/24
Filed: 1966-07-22
Abstract: 1,127,814. Securing spools on hubs. FACIT A.B. 22 July, 1966 [22 July, 1965], No. 32994/66. Heading F2U. [Also in Division G5] A punched paper tape or like spool: 30 is releasably held on a hub 33 by a rubber or similar resilient ring 19 urged radially outward by the wedge end 22 of an axially slidable sleeve 21 acting on the ring through balls 17 and plungers 16, each plunger carrying on its end adjacent the ring 19 a curved leaf-spring 18. After placing the-spool on the hub, a member 20, comprising spring-loaded telescopic members 24, 25, sleeve 21, and end-plate 28, is pushed on to the hub axle 1, the wedge end 22 abutting the balls and forcing them radially outward until the balls snap behind a shoulder 23 to lock the spool on the hub, with the end-plate 28 spring-loaded relative to the sleeve 21. To release the spool, the member 20 is pulled until the thrust of the balls 17 against shoulder 23 is. overcome. To accommodate spools of various axial-width, the axial position of the other end-plate 8, which is carried on member 7, is adjustable along a sleeve 2 fast on axle 1, a plate 9 formed with a keyhole slot 10, the edges of the narrower part of which slot are spring-urged, by spring 11, into grooves 35 in member 7 and one of the annular grooves 4, 5, or 6, in sleeve 2, retaining the end-plate in its desired axial position.
Patent GB-707287-A (GB)
Title: Improvements in or relating to bituminous compositions
Inventor: ALEXANDER PETER
IPC: C04B28/04
Filed: 1952-12-31
Abstract: The composition of the parent Specification is modified by replacing the stable bitumen emulsion by a stable emulsion of a binder defined as having an I.P. penetration of 40 to 500 at 25 DEG C and consisting of bitumen, coal tar or coal tar pitch or mixtures thereof.
Patent GB-1499227-A (GB)
Title: Sintering of refractory materials
IPC: H01L41/39
Filed: 1976-08-10
Abstract: 1499227 Method of sintering refractory materials NIPPON STEEL CORP 10 Aug 1976 [11 Aug 1975] 33180/76 Heading C1J A method of sintering refractory materials comprises adding to dielectric refractory particles (i.e. an electric insulator at normal temperatures) to be sintered, from 0À05-10% by wt. of electroconductive substance in particulate or fibrous form to obtain a mixture thereof, and then sintering the mixture by means of microwave induction heating. The term "dielectric refractory" includes magnesia, alumina, silica, dolomite, mullite, pyrophyllite, silicon nitride, boron nitride and borides as well as mixtures of these. The term "electroconductive substance" includes Al, Mg, Cr, Si, Fe-Si alloy, C, #-Al 2 O 3 , Cr 2 O 3  and SiC. When the electroconductive substance comprises metal particles a solid oxidant is additionally added to the mixture. The oxidant may be chlorates, perchlorates or nitrates of alkali or alkaline earth metals, or ammonium compounds.
Patent GB-194662-A (GB)
IPC: C11D13/20
Filed: 1922-12-05
Abstract: Shaving powders are made by dehydrating potash soaps until the fatty acid content is at least 75 per cent, with or without the addition of a substance reducing the swelling property of the soap, e.g. a non-hygroscopic salt, such as 1 per cent of potassium formate, and atomizing the liquid or powdering the solid soap.  The Specification as open to inspection under Sect. 91 (3) (a) comprises also making potash soaps more durable by dehydration as above, or by addition of a swell-reducing substance, by slight overheating so as to cause superficial decomposition, or by boiling and solidifying the soap under reduced or increased pressure, or by a combination of these methods.  This subjectmatter does not appear in the Specification as accepted.  Reference has been directed by the Comptroller to Specifications 16059/90 and 25221/12.
Patent GB-1086768-A (GB)
Title: Card game
IPC: A63F1/02
Filed: 1966-07-23
Abstract: A pack of cards for playing a card game consists of a number of sets of cards, each card having the atomic number and other properties of one or more chemical elements described thereon and bearing the set number and a group symbol identifying cards in different sets representing elements with similar atomic structure and/or chemical properties.  The sets and groups may correspond to the periods and groups of the Mendeleeff Periodic Table.  If desired the cards may be used with a playing board on which areas are demarcated bearing scientific information corresponding to each card and/or to sets and groups of cards.
Patent GB-523198-A (GB)
Title: Improvements in or relating to electric rectifiers or converters
IPC: H02M1/28
Filed: 1938-11-16
Abstract: 523,198. Electromagnetic interrupters for converters and rectifiers. SCHMIDT, K. H. Nov. 16, 1938, No. 33374. [Class 38 (v)] [Also in Group XXXV] In a rectifier or converter for transforming D.C. to A.C. or vice versa, two D.C. coils 5 and two A.C. coils 4. 4a influence armatures 11, 12, 11a, 12a so that these periodically attract each other a pair at a time thereby moving spring contact arms 15, 17 and 15a, 17a mounted on the spindles 13, 14, 13a. 14a into and out of engagement with each other. The spindles 13, 13a actually form one shaft, as do the spindles 14, 14a and the arrangement is such that when the armatures 11, 12 move towards each other, the armatures 11a, 12a move apart. Belt 21 round pulleys on the axles 13, 14, 13a, 14a ensure the arms moving towards and away from each other simultaneously. Fig. 3 shows one circuit arrangement wherein there are two such structures as shown in Figs. 1 and 2 with four D.C. windings, 23, 24, 25, 26 four A.C. windings 28, 29, 30, 31, four pairs of contacts 34, 35 ... 41. The two left hand pairs of contacts close when the others open and vice-versa. With the left contacts closed, current can pass from a D.C. source 22 to the primary P of a transformer 42 through both D.C'. and A.C. windings. With the right hand contacts closed the current from the D.C. source will pass in the opposite direction through the A.C. coils and the primary P.
Patent GB-341593-A (GB)
Title: Improvements in open glass box-shaped building elements
IPC: E04C1/42
Filed: 1929-11-04
Abstract: 341,593. Glass building blocks. NAAMLOOZE VENNOOTSCHAP GLASFABRIEK LEERDAM VOORHEEN JEEKEL MIJNSSEN & CO., Leerdam, and JANZEN, J. W., 17, Eikstraat, The Hague, both in Holland. Nov. 4, 1929, No. 33469. [Class 87 (i).] In open box-shaped glass building elements having side walls forming the wall surface, two sets of corresponding grouting or like grooves 2 are provided extending all round the edges of the elements, both sets being parallel to the side walls and one set adjacent to each side wall, the construction also being such that any element can be removed in either direction at right angles to the plane of the wall without disturbing adjacent elements. Reinforcements such as 7 may be accommodated in the grooves.
Patent GB-1097498-A (GB)
Title: Modified full cone nozzle
IPC: B05B1/34
Filed: 1965-08-05
Abstract: 1,097,498. Nozzles. SPRAYING SYSTEMS CO. Aug. 5, 1965 [Aug. 7, 1964], No. 33562/65. Heading B2F. A spray nozzle for producing a full cone spray comprises a passage 22 for the liquid to be sprayed, vanes 27V in the passage for imparting a swirling turbulence to the liquid, and a plurality of grooves 41 arranged around the outlet 25 of the passage so as to direct inwardly the outer portions of the swirling liquid and produce a full cone spray. The ribs or grooves may be inclined with respect to the nozzle axis, Fig. 3 (not shown), or may be formed in an outer cap or sleeve, Figs. 7-10 (not shown) which is adjustable with respect to the nozzle so as to alter the angle of the spray. The grooves may be formed integrally with the nozzle or the cap or may be formed in a separate sleeve as shown in Fig. 1.
Patent GB-309228-A (GB)
Title: Improvements in or relating to the destructive hydrogenation of carbonaceous materials
IPC: C10G1/06
Filed: 1927-10-03
Abstract: 309,228. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Oct. 3, 1927. Divided on 302,941, [Class 91, Oils &c.]. Hydrogenation, destructive.-The destructive. hydrogenation of carbonaceous materials is carried out in the presence of small quantities of organic surface-tension reducing agents containing the radical of a mineral acid in the molecule such as aromatic and aliphatic sulphonic acids, and sulphonic acids of aromatic or hydroaromatic hydrocarbons sulphonated in the nucleus and containing at least one alkyl group in the nucleus. Specific examples are sodium isopropyl naphthalene, sulphonate, phenyl borate, the residues obtained by evaporating sulphite cellulose waste liquor, and the sulphonated products of destructive hydrogenation. Other substances having a catalytic action such as alkalies, magnesia, or zinc oxide may be added. The operation may take place under pressures of 50-200 atmospheres. Brown coal mixed with tetrahydronaphthalene is treated with hydrogen under a pressure of 200 atmospheres and at 460-470‹ C. in the presence of 0.05 per cent of sodium isopropyl naphthalene sulphonate and 60 per cent of the coal is converted into liquid hydrocarbons and solid hydrocarbons such as paraffin wax which mav be further converted into benzines. Specification 274,858 is referred to.
Patent GB-194771-A (GB)
Title: Improvements appertaining to shovels and the like
IPC: A01B1/02
Filed: 1921-12-14
Abstract: 194,771. Kelly, J. R. Armstrong-. Dec. 14, 1921. Shovels.-The blade 1 of a shovel, especially intended for broken rock, hard minerals &c., is provided on the underside with a metal plate 5, the front edges 6, 7 of which follow the contour of the edge of the blade. The plate is riveted or welded to the blade 1, the edges 8, 9 extending inwardly and upwardly to a point 10 along the centre-line of the blade, which is thus strengthened. The edges of the plate are preferably bevelled. Reference has been directed by the Comptroller to Specification 132,722.