baber/WOPTO huggingface dataset:
Patent GB-1523272-A (GB)
Title: Machine recognition of patterns
IPC: G06K9/64
Filed: 1974-06-05
Abstract: 1523272 Character recognition NATIONAL RESEARCH DEVELOPMENT CORP 4 June 1975 [5 June 1974] 24973/74 Heading G4R To determine whether a pattern such as a handwritten character corresponds to one of a predetermined set of reference characters the reference characters are each divided into a notional grid and a binary matrix is produced and stored for each reference character to indicate the presence or absence of a mark in respective locations or cells of the grid. A similar matrix is produced for the pattern. To allow the grid to be fairly coarse a given cell s hj  in the pattern is compared with a corresponding cell t hj  in each reference character and with the eight cells surrounding t hj and a given cell t hj  in each reference character is compared with the corresponding cell s hj  in the pattern and with the eight cells surrounding s hj . To implement the comparison sets Q<SP>gh</SP>, are defined, where g is a superscript and each Q hJ  four pairs of cells and has s hj  in each pair and t hj  and three of the other eight cells surrounding t hj , e.g. Q<SP>g44</SP> might contain cell pairs (s 44 , t 44 ), (s 44,  t 54 ), (s 44 , t 43 ), (s 44 , t 53 ). A similar set is defined in which t hj  is paired with s hj  and three of the eight cells around s hj . As a consequence g has eight values g to g<SP>7</SP>. Fixed pairs of cells q<SP>8</SP> are examined each of which contain a mark and which contain s hj  and a respective one of the eight cells surrounding t hj . A set E is defined which contains all pairs cells q both of which contain a mark. The cells are examined and if they don't correspond are eliminated from E. If a pair of cells correspond, e.g. q<SP>n</SP> then only pairs of cells q that are situated in the corresponding Q, e.g. Q<SP>n</SP> are examined. Variables Yg are defined as Y g = 1 if no pair q<SP>g</SP> are eliminated from E; Y g = 0 otherwise. A similar procedure is performed for cells t hj  and sets P hjg  which correspond to Q hjg . Quantities z<SP>8</SP> and y<SP>g</SP> are determined whic are 1 if a particular set Q<SP>g</SP> contains at least one pair q in E. For a given unknown pattern the following procedure is carried out for each specimen pattern. Initially each Y<SP>0</SP> ... Y<SP>7</SP> is set equal to 1. For each g=0,..., 7 Y<SP>g</SP> is set equal to zero if This is repeated for each g = 0,.. 7 until no y g  is set equal to zero. The unknown pattern is asssigned to the class of the specimen pattern for which the process ends with at least one of y 1 , . . ., y 7  equal to 1 when # has a minimum value.
Patent GB-1345792-A (GB)
Title: Duel pressure regulator
IPC: G05D16/10
Filed: 1971-04-19
Abstract: 1345792 Valves INTERNATIONAL BASIC ECONOMY CORP 19 April 1971 [23 March 1970] 25129/71 Heading F2V In a dual-pressure regulating valve having an inlet 22 and outlet 24, piston 42A responds via 46 to outlet pressure and moves against loading spring 104 to allow main closure member 28 to engage seat 30, excess outlet pressure being relieved by continued movement of piston 42A to open vent passage 92. Further movement of piston 42A uncovers dump ports (83) in the housing to allow rapid venting of outlet pressure. Spring 104 can be loaded by piston 54 responsive to a loading pressure in chamber 52. Chamber 108 can be pressurized at 106 to depress piston 54 against the loading pressure in chamber 52. Nut 72 acts as an adjustable stop to limit travel of piston 54. Threaded plug 68 allows manual adjustment of spring 104.
Patent GB-160410-A (GB)
Title: Improvements in valveless rotary pumps
IPC: F04B1/113
Filed: 1920-08-31
Abstract: 160,410. Copsey, E. L., and Brackett & Co., Ltd., F. W. Aug. 31, 1920. Revolving-cylinder pumps.-The shaft c is mounted in an eccentric position with regard to the cylinder a and has a slotted flattened portion i fitting between the parts g forming the piston. These parts are secured by a distance-bolt h, wear being adjusted for by the use of washers l of varying thickness. Specification 103,275 is referred to.
Patent GB-378669-A (GB)
Title: Improvements in or relating to loom warp beams
IPC: D02H13/28
Filed: 1931-09-08
Abstract: 378,669. Securing flanges to warp beams. LISTER, P., 125, Princeville Street, Bradford, Yorkshire. Sept. 8, 1931, No. 25163. [Class 142 (ii).] Longitudinal displacement of the flanges of a warp beam is prevented by a member which can be adjustably secured to a fitting located in a groove at each end of the beam. The retaining member may be in the form of a block C, Fig. 4, which is slidably mounted on a rod B and is provided with a fixing screw F or, in an alternative construction, a tube C<2>, Fig. 5, may be held in the desired position by means of a slidably mounted eye bolt D<x> and a nut D<1>. The rod B in each construction is supported by a bar A which is accommodated in a groove or slot in the beam and is provided with notches A<2> to receive securing members N.
Patent GB-388099-A (GB)
Title: Improvements relating to machines for rolling threads on bolts
IPC: B21H3/04
Filed: 1931-09-08
Abstract: 388,099. Rolling screw-threads. ALLGEMEINE ELEKTRICIT€TS-GES., 2, Friedrich Karl-Ufer, Berlin. Sept. 8, 1931, No. 25251. Convention date, Nov. 25, 1930. [Class 83 (iv).] Axial rolling.-A thread is rolled on a bolt between two rolls 1, 2, the bolt being held in position by guides 3, and fed axially between the rolls by a clamp rotated by gearing 9, 8 from the lower roll 2. The bolt is vertically adjustable by its bearing 5 being mounted in slots 12 in which slide sloping racks 13 traversed by handturned rack pinion 14. The gear 8 is longitudinally displaceable on the roll shaft 7. Other forms of mill have four rolls for rolling two bolts simultaneously or five rolls for rolling four bolts at once, the centre roll then being smaller than the other four rolls grouped around it. Six bolts may be threaded simultaneously by seven rolls all of the same size, Fig. 7.
Patent GB-1202202-A (GB)
Title: Improvements relating to the mounting of sealed double glazing units
Inventor: SCHWARTZ BERNARD PAUL MANFRED
IPC: E06B3/60
Filed: 1966-06-07
Abstract: 1,202,202. Glazing. B.P.M. SCHWARTZ. 6 Sept., 1967 [7 June, 1966], No. 25414/66. Heading E1R. A double glazed unit 1 is mounted in the rabbet of a metal or wooden frame by arranging around the peripheral glazing stop 8 a spring such as the resilient strip 10, Fig. 1, or the spring 20, Fig. 4, e.g. of stainless steel held in position by the U-shaped clip portion 7, of latch members 6, after passing through holes in the limbs of the spring 20 and hooked over the fixed stop 8 of the frame, the latch members 6 being part of and held by the clip portion 7, the glazing unit being then positioned in the frame and securing the unit in the frame with the spring 20 under compression by retaining strips 11 which extend round the outer marginal surface of the unit and are secured to the frame by stirrup members 13 whose end 15 engages the latch members when the retaining strip and unit are pressed inwards against the spring 20. Corner pieces (Figs. 11, 12) cover the gaps between the square-cut ends of the springs 20 on adjacent sides of the frame.
Patent GB-1433933-A (GB)
Title: Telephone apparatus
IPC: H04Q3/58
Filed: 1973-05-29
Abstract: 1433933 Queueing arrangement WESTERN ELECTRIC CO Inc 29 May 1973 [30 May 1972] 25436/73 Heading H4K In a telephone arrangement wherein an attendant is able selectively to receive a call from any one of a number of lines, the approximate sequence in which calls should be dealt with is indicated by an arrangement in which a call or calls arriving in a predetermined period flutter respective indicators at one rate and calls arriving subsequently wink their respective indicators at a second distrinctive rate, the latter calls being indicated at the first flutter rate when the original call or calls have been dealt with, and further received calls again being indicated at the second distinctive rate. The arrangement includes means for repeatedly sending an acknowledgement to the lines of waiting calling subscribers if a gate preventing access of new calls to the indicator is held open for more than a predetermined period due to slow call handling, indicator lamps may be coloured to indicate priorities. The functions may be achieved in a system using standard key sets by the addition of an equal number of auxiliary key sets each including a flutter generator and a gating circuit. The gating circuit may include a short time constant circuit for establishing a period in which calls are provided with the flutter indication, a third winking rate may be used for a call being held, and the indicator lamp may be caused to be lit steadily whilst a call is being answered.
Patent GB-755798-A (GB)
Title: Improvements in and relating to animal feed compositions
IPC: A23K1/16
Filed: 1954-09-01
Abstract: A water-soluble bisulphite addition product of 2-methyl-1,4-naphthoquinone used as an animal feed ingredient may be prepared by grinding one mol. of 2-methyl-1,4-naphthoquinone with preferably two mols. of finely ground sodium bisulphite passing through 30 mesh.  About 16 mols. distilled water are added and a paste is made which is then dried on enamel trays under vacuum or in a current of air.  Discolouring side reaction products are removed by agitating the powdered reaction product in 95 per cent ethyl alcohol for four hours.  The sodium, calcium and alkanolamine bisulphites are preferably employed.ALSO:A water-soluble bisulphite addition product of 2 - methyl - 1,4 - naphthoquinone is added to an animal feed ingredient which normally causes a reduction in the prothrombin blood levels, to maintain normal prothrombin blood levels.  The ingredient may contain solvent-extracted soy bean oil meal, a sulpha drug, an antibiotic or an arsonic acid.  The bisulphite addition product is formed by reacting 2-methyl-1,4-naphthoquinone with the bisulphite salt present in at least 1 : 1, preferably 2 : 1, molal ratio; the sodium, calcium and alkanolamine salts are preferred. Proportions of 0.00001 to 0.001 per cent by weight of the addition product may be added to a poultry feed composition, but especially 1 gram per ton of feed (0.00011 per cent).  Other conventional ingredients and additives may be included in the feed compositions.ALSO:A water soluble bisulphite addition product of 2-methyl-1, 4-naphthoquinone is added to an animal feed ingredient which normally causes a reduction in the prothrombin blood levels, to maintain normal prothrombin blood levels.  The feed ingredient may comprise solvent extracted soy bean oil meal, a sulpha drug, an antibiotic or an arsenic acid.  Proportions of-0,00001 to 0,001 per cent by weight of the addition product may be added to a poultry feed composition, but especially 1 gram per ton of feed (0,00011 per cent).
Patent GB-260097-A (GB)
Title: Anchored explosive mine for the destruction of sub-marine boats
IPC: F42B22/10
Filed: 1925-10-13
Abstract: 260,097. Marks, E. C. R., (Ansaldo Soc. Anon.). Oct. 13, 1925. Mines, marine.-An explosive mine C, Fig. 4, is normally held by a float B at a predetermined height above an anchor A and below a net D; and when the net is struck by a submarine, the mine is released from the float and rises by its own buoyancy along a cable connecting the float to the net and is exploded by impact with the submarine. These various devices are dropped overboard in an assembled condition as shown in Fig. 6. The anchor A becomes flooded and the whole sinks to the bottom. When a soluble plug is dissolved away, tongs 2 are unlocked and release the float B, which rises up paying out a mooring cable 8 from a winch 1 carried by the float B, until at the appointed depth an hydrostat stops the winch 1. The net D with buoys E continues to rise until the cable 4 is fully extended, while a cable 5 remains slack. If a submarine now strikes the net, the cable 5 is tightened and releases hooks P<3>, which liberate the explosive mine C from the float B. The mine then rises along the cable 4 and is exploded by the impact of its horns 13 against the submarine.
Patent GB-1004195-A (GB)
Title: Detachable hinge for doors or windows
IPC: E05D7/12
Filed: 1963-06-27
Abstract: 1,004,195. Hinges. H. WILKE. June 27, 1963 [June 27, 1962; March 6, 1963], No. 25639/63. Heading E2F. A detachable hinge comprises two relatively pivotable components 3, 4 each having an abutment surface 7 for engagement with a corresponding structural member, each abutment surface being formed with at least two recesses 9 spaced in the direction of the hinge axis and each recess having an opening 8 adapted to receive a fastening element 11 projecting from the corresponding structural member and an undercut portion adapted to engage the element after the component has been subjected to sliding movement parallel to the hinge axis, the abutment surface extending completely around the opening of each recess so that when the hinge is secured to the structural members the fastening elements are concealed from view. Preferably each component is moulded from synthetic plastic material and includes a channel-section metal insert 13 disposed so that its base lies in the abutment surface 7 and has parts 10 overlying the recesses 9 to form the undercut portions. Alternatively the insert may be completely embedded in the component. The hinge pin 5 is bonded into the component 3 and fits freely in the component 4 so that the components may be easily separated. The pin may be bare or may be covered with plastic material. The fastening elements 11 are preferably headed screws or studs, but hooks may be used if desired.
Patent GB-535575-A (GB)
Title: Improvements in and relating to lamps for signalling and similar purposes
IPC: G08B5/38
Filed: 1939-09-12
Abstract: 535,575. Signalling &c. lamps. BRITISH THOMSON-HOUSTON CO., Ltd., DAVIES, B. R., and LUCAS, G. S. C. Sept. 12, 1939. Nos. 25660/39 and 6930/40. [Class 75 (iv)] [Also in Group XXXVIII] In a signalling or like lamp a light source 1 is surrounded by a metal or other opaque cylindrical screen 4 which prevents the transmission of substantially all but those rays which are reflected by a parabolic or like reflector 3, the screen 4 being movable axially to vary the amount of light reflected by the reflector. In the form shown, the screen 4 is closed at the front and is operated by a trigger 7. The light source may comprise an electric incandescent or high-pressure gas discharge lamp, and in the obturating position the screen may enter a central aperture in the reflector. A rheostat 13 and a sighting device 15 may be provided. In a modification, the screen is open ended, the front end of the light source being coated with aluminium paint or other reflecting or non- reflecting opaque material and the screen may be operated manually by a pivoted arm, or electromagnetically against a spring. According to the second Provisional Specification the screen may be dish-shaped.
Patent GB-998084-A (GB)
Title: Improvements in and relating to adjustable driving seats for vehicles
IPC: B62D51/02
Filed: 1964-06-22
Abstract: 998,084. Adjustable and resiliently mounted seat. MASCHINENFABRIK FAHR A.G. June 22, 1964 [June 26, 1963], No. 25661/64. Headings A4J and A4U. An adjustable resiliently mounted vehicle seat 7 is supported by a bowed spring 3, which has one end secured to the vehicle, an intermediate substantially semi-circular arc-shaped part 5, which extends rearwardly and upwardly from the fixed end, and a free end 3<SP>1</SP> or 10 which extends obliquely forward and downward. The spring end 10, Fig. 3, is hinged at 11 to the arc-shaped part 5 to enable the seat to be moved to an out-ofuse position, and an adjusting screw 13 is incorporated to alter the position of the spring part 10 in the turned-down position. The seat 7 is adjustable along the length of the spring parts 3 and 5 or 10 and locked in position by a cam-lever 8, or a tooth catch engaging one of several notches in the spring parts.
Patent GB-1371674-A (GB)
Title: Catalyst suitable for use in the preparation of unsaturated carbonyl compounds
IPC: C07C27/14
Filed: 1972-06-01
Abstract: 1371674 Oxidation catalyst NIPPON SHOKUBAI KAGAKU KOGYO CO Ltd 1 June 1972 [9 June 1971] 25677/72 Heading B1E [Also in Division C2] A catalyst, suitable for use in the preparation of acrolein or methacryloein by the oxidation of propylene or isobutylene, contains oxygen and the elements cobalt, iron, bismuith, tungsten, molybdenum, silicon and thallium and optionally an alkali metal and/or alkaline earth metal in amounts such that the atomic ratio Co:Fe:Bi:W:Mo:Si:Tl:Z is 2.0 to 20.0:0.1 to 10.0:0.1 to 10.0:0.5 to 10.0:2.0 to 11.5:0.5 to 15.0:0.005 to 3.0:0 to 3.0, wherein Z represents an alkali metal and/or alkaline earth metal and the sum of W and Mo is 12.0. The catalyst may be supported on silica gel, alumina, silicon carbide, diatomaceous earth, titanium dioxide or infusorial earth. The catalyst can be prepared by mixing aqueous solutions of ammonium molybdate and ammonium poratungstate, adding aqueous solutions of cobalt, ferric, bismuth and thallium nitrates, and of hydroxide or nitrates of alkali and alkaline earth metals, colloidal silica and a carrier, concentrating by evaporation, moulding the product and calcining at 350 to 600C. In control experiments the silica and the thallium, respectively, are omitted.
Patent GB-762373-A (GB)
Title: Improvements relating to electrical waveguides
Inventor: MELVILLE WILLIAM SIMM
IPC: H01P11/00
Filed: 1953-09-18
Abstract: 762,373. Waveguides. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 18, 1954 [Sept. 18, 1953], No. 25859/53. Drawings to Specification. Class 40 (8). A waveguide or waveguide system comprises two or more sections of insulating or low-conductivity material correspondingly recessed in their joining faces in such a manner that when the sections are joined together the recesses form waveguide cavities. The walls of the recesses are coated with metal, e.g. silver, copper or aluminium, deposited e.g. by spraying or electrolysis. The abutting surfaces are similarly coated. The sections may be made by a moulding process from an epoxy or polyester resin or from a mouldable metal such as zinc. After assembly the sections are secured together by spigots, dowels, screws, clamps, &c. A complete waveguide system having guides extending in three dimensions may be formed from a number of suitable sections. The construction of a " rat race" junction by the method of the invention is described in the Specification.
Patent GB-518877-A (GB)
Title: Improvements in selective responding devices for use in electric control systems
IPC: H02J13/00
Filed: 1938-09-05
Abstract: 518,877. Signalling over power circuits. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and MACKENZIE, J. F. Sept. 5, 1938, No. 25942.. Drawings to Specification. [Class 40 (iv)] [Also in Groups XXXVIII and XXXVII] A receiver responsive to H.F. impulses transmitted over the supply mains is connected thereto by a series tuned circuit loosely coupled to a parallel tuned circuit. The inductances may have adjustable permalloy cores.
Patent GB-966988-A (GB)
Title: Roofing member
Inventor: BONAFONT ROGER LOUIS
IPC: E04B7/02
Filed: 1961-07-18
Abstract: 966,988. Roof constructions. RUBEROID CO. Ltd. July 11, 1962 [July 18, 1961], No. 25956/61. Heading E1V. A roofing member comprises a deck 1 of corrugated or ribbed sheet material which is strained to give a camber by means of one or more tensionable connecting members 7, the centre portions of which are spaced away from the deck by one or more spacing members 2. At the ends of the deck 1, the connecting members 7 are connected to end members 6 which may be channel shaped or which may be Z-shaped as in Fig. 4 (not shown). The spacing members may each be in the form of a beam comprising top and bottom channel-sectioned chords 4, 3, Fig. 2, connected by bracing bars 5. Aligned chords 4 of adjacent overlapping roofing members, indicated at 8 on Fig. 2, may be connected by a channel-shaped connecting piece, Figs. 5, 5a, 5b and 5c (not shown). Additional roofing materials may be applied over the deck 1.
Patent GB-337113-A (GB)
Title: Improvement in construction of vehicle body covers and those of other containers
IPC: B65F3/12
Filed: 1929-08-27
Abstract: 337,113. Damiral, P. J., Jenkins, S. W., and Braby & Co., Ltd., r. Aug. 27, 1929. Doors, cart.-In pivoted flap doors or covers for closing apertures in the tops of vehicle bodies and other receivers of the kind in which the cover pivoted at one border of the access aperture is so linked to a pivoted coaming at the opposite border that, on the coaming being angularly displaced, either manually or under the weight of a domestic bin or the like, the cover is angularly opened and on release of the coaming the cover closes by gravity and returns the coaming, the cover, on release of the downwardly displaced coaming, is closed by gravity and returns the coaming, and the cover is also provided with a portion which is pivoted to the remainder of the cover. The access aperture is provided with fixed coamings b, c and a pivoted coaming d having side flaps d'. The flap or cover e which comprises two hinged parts e, e<1> is pivoted at f and is connected by arms h and links i to the pivoted coaming d. The coaming d may be angularly displaced by a rope &c. q or by the weight of a bin resting on a bracket m and if desired engaging a hook n.