baber/WOPTO huggingface dataset:
Patent GB-1463887-A (GB)
Title: Method and system for signature verification
IPC: G06Q50/00
Filed: 1974-06-27
Abstract: 1463887 Signature recognition systems STANFORD RESEARCH INSTITUTE 27 June 1974 [11 Oct 1973] 28614/74 Heading G4R A system for verifying a signature by comparison with a reference signature employs a pen or like which develops signals indicative of the instantaneous direction of motion of the pen. The signals are sampled by clock pulses and the sampled signals are normalized with respect to direction signals derived from the previously written reference signature. The normalized signals are compared with the reference direction signals to verify them. The pen may be as described in Specification 1,463,889, having a pivotally-mounted ballpoint cartridge with a light source at its upper end so that pivotal movement of the cartridge during writing is indicative of the direction of movement, the instantaneous position of the cartridge being sensed by four quadrantally. disposed photocells. The signals from the pen are resolved into X and Y orthogonal components and fed to a divider to form a value tan #, where # is the angular direction of movement While the pen is pressed on the paper, i.e. during writing, clock signals sample the tan # signal, and the samples are converted to signals indicating # at successive instants and are stored. The stored samples are read out at a rate dependent on the number of samples, i.e. on the time taken to write the signature, and passed to a normalizing shift register whose read-in rate is determined by a reference sample count obtained during writing of the reference signature. As a consequence the number of samples stored in this register is the same as the number of samples of the reference signature. The samples from the register are compared with reference samples # by forming the sum of the squares of their differences. The degree of similarity of the signatures is indicated by subtracting the sum from a reference value, the signature being deemed valid if the result is sufficiently large. The reference sample count and the reference samples # may be obtained by addressing a store. The address is selected by the writer, e.g. by means of a keyboard or a coded card. Instead of comparing # samples only, samples of X only, Y only or X and Y severally may be compared alone or in addition to the # samples.
Patent GB-511564-A (GB)
Title: Method of and apparatus for applying a liquid to the inner surfaces of a gas holder
IPC: B05B13/06
Filed: 1938-10-01
Abstract: 511,564. Gas holders; spraying apparatus. LECHLER, P. Oct. 1, 1938, No. 28616. Convention date, Oct. 1, 1937. [Classes 54 and 69 (iii)] A rotatable spraying device introduced through a hole in the gas holder allows a rust-preventing liquid to be applied to the inner surface of a gas holder while the holder is still in operation. In Fig. 1 bent pipes 5...5<111>are successively inserted through a guide sleeve 3 in the holder 1 so as to spray liquid supplied by a conduit 4. The depth to which the pipes project is regulated by an adjustable collar 7 and is indicated on a scale 8. The pipes may be turned by a handle 6, the angular position being indicated by a pointer 9. An elastic sleeve on the pipes minimizes the loss of gas on insertion, Fig. 2, shows a spraying nozzle 25 slidable on a jib 10 pivoted to a column 12 inserted through the sleeve 3. The column 10 is adjustably suspended from a pulley 19 on a tower 13 erected on a frame 28 secured to the top of the holder and may be rotated by worm gearing 16, 17. The jib 10 may be tilted to any desired angle by cables 14, 14' operated by a winch 15. The nozzle 25 may be moved along the jib by an endless cable 22 operated by a drum 24. Instead of the movable nozzle 25 a number of spraying nozzles may be mounted on the jib, all or groups of which may be simultaneously supplied with the protective liquid.
Patent GB-1396323-A (GB)
Title: Sleeve gasket member
IPC: F16L37/02
Filed: 1971-06-18
Abstract: 1396323 Joint-making packing; pipe joints COWIE SCIENTIFIC Ltd 6 June 1972 [18 June 1971] 28627/71 Headings F2B and F2G A frusto-conical sleeve gasket of a fluorinated hydrocarbon polymer for making a seal in a push fit joint between tubular glass members has a wall thickness of 1À5 mm. or more and one or more circumferential sealing ribs of triangular, square, rounded or trapezoidal cross-section on both the inner and outer surfaces, the wider end of the sleeve being provided with an external annular flange 10. The sleeve may be 5 mm. thick and made of a fluorinated alkene (e.g. PTFE) or a fluorinated chlorinated alkene polymer. The flange 10 may be provided with a knurled portion 6 to assist in handling. The sleeve may also be provided with a stop shoulder 8 and a locating rib which may take the form of a circumferential rib broken into three segments.
Patent GB-150567-A (GB)
Title: Improvements in steam superheaters for locomotive and other boilers
IPC: F22G7/06
Filed: 1919-11-19
Abstract: 150,567. Lucy, E. E. Nov. 19, 1919. Fire and smoke tube superheaters.-In superheaters for locomotion and other boilers of the kind in which the superheater elements are located in the fire-tubes, the header 8 is in the form of a rectangular chamber, divided by a vertical partition 9 into two chambers 10, 11 for saturated and superheated steam respectively. The tubes 18, 19 for saturated and superheated steam respectively are secured in collectors 12, divided by a vertical partition and formed with bifurcated ends 13, 14, for bolting independently to the underside of the header 8. The tubes 18, 19 are rendered accessible by removing plugs 21.
Patent GB-896711-A (GB)
Title: Process for reducing the acid number of polyesters
IPC: C08G63/82
Filed: 1958-09-08
Abstract: Liquid polyesters have their acid numbers reduced to below 10 by esterifying their carboxyl groups with a mono-epoxide in an amount of about 80% to about 230% of the stoichiometric amount calculated on the basis that one epoxide group is equivalent to one carboxyl group, whereby the carboxyl groups are converted into ester groups containing at least one hydroxyl radical; the reaction being discontinued while limited substantially to said esterification.  The polyesters are those obtained from a dicarboxylic acid and a glycol or a mixture of a glycol with a minor amount of a polyhydroxy compound containing more than two hydroxyl groups: they have a molecular weight of at least 1,000, an acid number above 10 and not substantially above 100 and a hydroxyl number substantially greater than the acid number.  The mono-epoxide is ethylene-, propylene-, butylene-, cyclohexene-, styrene- or hydroxymethylethylene-oxide. Reaction is effected at 50 DEG -275 DEG C., possibly in the presence of a catalyst (e.g. a mineral acid or a salt thereof, naphthalene sulphonic acid, an oxide, carbonate or carboxylic acid salt of an alkali or alkaline earth metal, a tertiary amine or an ion-exchange resin).  Examples describe reacting (1) A polyester of adipic acid, diethylene glycol and pentaerythritol with butylene oxide; (2) A polyester from succinic acid, triethylene glycol and trimethylol ethane with butylene oxide; (3) A polyester from maleic anhydride, succinic acid, trimethylol propane and triethylene glycol with propylene oxide; (4) A polyester from adipic acid, ethylene glycol and propylene glycol with ethylene oxide; (5) and (6) A polyester from adipic acid, diethylene glycol and trimethylol propane with propylene oxide; (7) A polyester from adipic acid, diethylene glycol and glycerol with styrene oxide; (8) A polyester from phthalic acid, pimelic acid, ethylene glycol and propylene glycol with glycidol. Specification 787,760 is referred to.
Patent GB-996104-A (GB)
Title: Valve for controlling fluid flow
IPC: F16K1/226
Filed: 1963-07-19
Abstract: 996,104. Valves. KEYSTONE VALVE CORPORATION. July 19, 1963 [April 2, 1963], No. 28787/63. Heading F2V. In a butterfly valve assembly 10, for use with corrosive fluids, the closure disc 13 seats upon and effects a seal by compression of an annular seat ring 12 which has a resilient body 12a of natural or synthetic rubber bonded to a relatively thin plastics covering 12b, e.g. .020 inch to .060 inch thickness of polytrifluorochloroethylene. For ease of replacement, the seat ring 12 is not bonded to the valve body 11 but is retained in the valve assembly 10, within circumferential dovetailed recesses 21, under compression between the end faces 14 of flange members 15 which are secured, by bolts 18, to abut the end faces 19 of the valve body 11. The plastics covering 12b effects a seal, under the compression of the seat ring 12, with the end faces 14 of the flange member 15 and each end of tubular portion 24 of the closure member stem 25 to prevent fluid contacting the rubber body 12a. Insertion and removal of the valve seat ring 12 is simplified by either mounting upon a separate rigid dovetailed ring or moulding thereto to form an integral seat unit or, alternatively, the resilient rubber material of the seat can be moulded upon a non-dovetailed ring of rigid mouldable material (Figs. 4 and 5, not shown). The valve stem 25 is insertable through a neck 31 of the body 11.
Patent GB-449290-A (GB)
Title: Improvements in or relating to projectors, headlights or the like, especially for use on vehicles
IPC: F21V7/00
Filed: 1935-10-18
Abstract: 449,290. Vehicle &c. lamps. IZIKOWITZ, J. S., 16, Norr Malarstrand, Stockholm. Oct. 18, 1935, No. 28830. [Classes 75 (ii) and 75 (iv)] In a light-projector, suitable for use on air, sea, or road vehicles, or for general illumination purposes, and having two or more sources of light, the forwardly located source of light 10 and its associated reflector 12 being arranged within a casing structure 9, the rear source of light 13 is located at or adjacent the inner focus of an ellipsoidal or substantially ellipsoidal reflector 14, the effective surface of which is disposed mainly above a horizontal plane through the lower forward edge of the casing 9, the remote focus of the ellipsoidal reflector being located adjacent said edge or between said edge and the rear source of light. The ellipsoidal reflector is arranged with its optical axis horizontal or with a slight downward inclination, and additional screening means is provided for any reflecting surface below this axis. The light source 13 and the ellipsoidal reflector 14 are arranged within a supplementary casing 15 which may be formed integrally with, or separate and readily removable from, the casing 9. The casing 15 comprises a back wall 15a, a bottom wall 15b, two side walls 15c, and a front wall 15d which extends vertically between the side walls up to the forward edge of the casing 9. The bottom of the casing 9 may be arched, as shown in Fig. 4, or it may be flat, and the front wall 15d may be wholly or partially translucent and it mav serve as an illuminated number plate or the like. An inclined coloured or uncoloured window 18 may be hinged at 19 to the front edge of the bottom wall 15b and be secured by catches 20 on the lower surface of the casing 9. The light source 13 preferably comprises a slightly upwardly inclined electric lamp bulb' 22, Fig. 6, having its lower surface made reflecting. The bulb holder 23 is mounted on a plate 23a hinged at 24 to a plate 21 which carries the reflector 14 and is recessed to pass over the bulb. The latter and the reflector 14 are held in position by means of hooks which prevent turning of the plate 23a about the hinges 24, and by projections 26 on the inside of the window 18 which clamp the plate 21 against the bottom of the casing 15.
Patent GB-872023-A (GB)
Title: Clamping mechanism for machine tool
IPC: B24B5/14
Filed: 1959-08-24
Abstract: 872,023. Grinding. CINCINNATI MILLING MACHINE CO. Aug. 24, 1959 [Jan. 13, 1959], No. 28830/59. Class 60. Means for locking a worktable 13, which is rotatable about a vertical pin 14 on a support 10, in adjusted position consists in providing in a recess 24 in a member 21 secured to the periphery of the table a flanged member 36 so cooperating with a flanged member 39 on the support that the flanges lie in the same plane, and straddling the edges of both flanges by a pair of clamp jaws 41, 42 adapted to be closed on to the flanges. Both jaws are in the form of rectangular blocks and the upper jaw 41 loosely receives locking bolts 43 which pass between the two flanges into threaded engagement with the lower jaw, tightening of the bolts being effected through holes 46 in the member 21. Adjustment of the table is effected by a rod 25 which engages a bushing 31 pivoted to the member 21 and is screw-threaded in a nut 26 pivoted to the support. The pivot pin 14 is fixed in the support 10 and has a head rotatably received in a bore of the table 13 and provided with means for taking up play. An index pointer 49 on the member 21 moves over a scale 50 on the flange 39. The table 13 may carry a headstock and tailstock 19.
Patent GB-944653-A (GB)
Title: Improvements in or relating to water heaters
IPC: A47J31/54
Filed: 1959-01-24
Abstract: 944,653. Electric water heaters. T. B. NELSON, E. NELSON, H. NELSON, and F. NELSON. Jan. 20, 1960 [Jan. 24, 1959], No. 28833/63. Divided out of 944,651. Drawings to Specification. Heading H5H. The Specification discloses apparatus identical to that disclosed in Specifications 944,651 and 944,652, but claims a water heater system which includes a closed hot or boiling water tank provided with heating means and supplied, to a normal water level, by a conduit from a warm water tank ; a vapour withdrawal conduit connected both to the hot water tank and to heat exchange means, for passing vapour withdrawn from the hot water tank in heat exchange with water in the warm water tank; and means for withdrawing hot or boiling water from the hot water tank.
Patent GB-1405244-A (GB)
Title: Automatic fastener feeding and driving apparatus
IPC: F15D1/14
Filed: 1974-06-28
Abstract: 1405244 Automatic screw fastener feeding apparatus MATSUSHITA ELECTRICAL INDUSTRIAL CO Ltd 28 June 1974 [2 July 1973] 28849/74 Heading B3N An automatic screw fastener feeding and driving apparatus of a type including a fastener container, a fastener driving tool 1, a mechanism for feeding fasteners 3 successively one by one from the container to the driving tool and a fluid servicing unit comprising a unit block 11 including an oiler 14, a pressure regulating valve 13, a common air intake port 15, a first outlet port 16 communicated with said oiler and a second outlet port 47 communicated with the pressure regulating valve, all formed in the unit block, and an electromagnetic valve assembly 18 connected to the second outlet port and having first and second ports 19, 20 communicated to an escapement block 10 forming a part of the feeding mechanism, said first outlet port being communicated to said driving tool. From inlet 15 the air passes through a filter 36 to an air pocket 41. From here the air can pass through a nozzle 55 where oil is injected from nozzle 56 into the air stream or via the adjustable regulating valve to the electromagnetic valve assembly 13. This assembly is controlled via a sensor 23 and a control unit 22 to operate a piston 63 which moves fasteners one by one to a feed tube 9. Oil for the nozzle 56 is stored in reservoir 61. The reservoir is pressurized by air entering the reservoir from passage 53 via port 62 therein.
Patent GB-735996-A (GB)
Title: Injection molding apparatus
Inventor: WATKINS ARTHUR SCOTT
IPC: B29C45/12
Filed: 1953-10-20
Abstract: 735,996. Injection-moulding machines. PRODUX CORPORATION. Oct. 20, 1953 No. 28913/53. Class 87 (2). An axially-movable sleeve valve 36 surrounds the nozzle 32 of a cylinder 25 within which works a screw 15. The valve.is apertured at 37 and 38, and in the position shown the aperture 37 establishes communication between a discharge conduit 33 in the valve and a passage 40 leading to one mould. When the valve is moved to the right, Fig. 1, by fluidpressure means 45, the aperture 37 is misaligned with 33 and 40 and the aperture 38 is aligned with conduit 34 in the nozzle and a passage 41 leading to another mould. More than two moulds may be thus alternatively supplied. The cylinder 25 is surrounded by a water-jacket 28 and is secured to the frame 12 by bolts 27.
Patent GB-172805-A (GB)
Title: Improvements in electrically heated sad irons
IPC: D06F75/24
Filed: 1920-10-12
Abstract: 172,805. Winterbotham, C. W. Oct. 12, 1920. Electric hand-irons are provided with a coil of wire in series with the heating-coil in order to indicate when the current is on. The heating- coil D is wound on a mica plate C and clamped with an asbestos sheet N between a lower pad A and an upper cap M in which is a hole P, the sides of which are red finished and protected by a mica sheet, containing a coil in series with the heating-coil. The hole is covered by an embossed mica window held in place by a cover plate Q.
Patent GB-944809-A (GB)
Title: Improvements relating to waveguide circuits employing two terminal semi-conductor non-linear elements
Inventor: SCOTT WILLIAM JOSEPH
IPC: H01P1/15
Filed: 1960-08-22
Abstract: 944,809. Semi-conductor devices; waveguide switches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 18, 1961 [Aug. 22, 1960; Jan. 12, 1961], Nos. 28992/60 and 1340/61. Headings H1K and H1W. In a semi-conductor rectifier device, an elongated, electrically-conducting, supporting member has ohmically secured, to one of its faces at right angles to the plane of elongation, a terminal area of a semi-conductor junction element, the other terminal area of the element being of smaller dimensions and being contiguous with the surface of a circuit member. The device is used as a waveguide switch and is inserted through one wall of the waveguide so that the said other terminal area is pressed against the opposite wall of the guide (Fig. 3, not shown). A molybdenum, tungsten or ironnickel-cobalt alloy, rod (diameter 0.06 inch) is tapered at one end 1 and has alloyed thereto a silicon monocrystal 3 using a gold-silicon alloy 2. A junction layer 4 is provided by diffusing, or by growing epitaxially, impurities from an aluminium layer 5, the crystal being tapered as shown to about 0.01 inch diameter. Finally a gold layer 6 may be diffusion bonded to the aluminium layer. Other embodiments using a rectangular sheet of metallised ceramic as the supporting member are discussed with reference to Figs. 4-8 (not shown). The other terminal area of the element in ohmic contact with the surface of the circuit member may be hermetically encapsulated. The device may extend through a choke 11, Fig. 3, in one wall of a waveguide and abut against a flexible portion 10 of the opposite wall.
Patent GB-291076-A (GB)
Abstract: 291,076. Bastian-Morley Co., (Assignees of Lonergan, S. J., and Ginther, H. E.). May 28, 1927, [Convention date]. Thermostats.-One end of a non-expansible rod 24 bears against valve operating mechanism and the other end 32 is fixed to an expansible tube 25 which is also secured to the valve casing. The end 32 of the members 24, 25 is subjected to the heat from a pilot flame 4<a>. The Specification as open to inspection under Sect. 91 (3) (a) describes means for preventing. overheating of the tube 25 by a guard plate 34<a>, or 34a<1>, Fig. 10, (Cancelled), with or without a layer of insulating material 38. This subjectmatter does not appear in the Specification as accepted.
Patent GB-869080-A (GB)
Title: Method and apparatus for discharging a tank filled with a volatile liquid
IPC: F17C9/00
Filed: 1959-08-26
Abstract: 869,080. Pumping volatile liquids. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N. V. Aug. 26, 1959 [Aug. 28, 1958], No. 29179/59. Class 102(2). A tank 2 of volatile liquid is emptied by connecting a riser 1 to a cyclone separator 5 connected to a vacuum pump 8 ; liquid is drawn off by a pump 11. The outlet of the pump 8 may be connected to maintain pressure above the liquid in the tank 2 and to supply gas for the riser 1.
Patent GB-1107097-A (GB)
Title: Improvements in or relating to portable roadways
IPC: E01C9/08
Filed: 1965-07-10
Abstract: 1,107,097. Temporary roadways. J. G. BREAREY. 7 July, 1966 [10 July, 1965], No. 29358/65. Heading E1G. [Also in Division D1] A temporary roadway consists of inverted channel members 30 linked by coupling links 40 positioned between the members. The channel members may be of plastics or rubber with an upper surface coated with tar and granite chippings and the coupling links of H-shape engaging slots in the channel member walls. A second layer of joined channels may be laid inverted in the spacer between the original layer. The channel members may be reinforced with steel rods or tubes.
Patent GB-257790-A (GB)
Title: Improvements relating to the lubrication of bowden cables
IPC: F16C1/24
Filed: 1925-11-20
Abstract: 257,790. Benton & Stone, Ltd., and Milner, C. E. Nov. 20, 1925. Channels in Bowden-wire mechanism. - A device for lubricating a Bowden cable comprises a member a, having an eccentric longitudinal cylindrical hole b, which is slipped over the cable c, and a member d adapted to be inserted in the hole b and formed with a longitudinal groove to embrace a part of the cable, the latter being clamped between the members a, d by means of a transverse screw f forming part of an oil cup or of a nipple adapted to be supplied with lubricant from a gun. Lubricant passes through the screw f and a hole e in the member d to a bared portion g of the cable.
Patent GB-1187073-A (GB)
Title: Arrangement for Automatically Releasing a Communication Connection in Course of Establishment.
Inventor: REEFMAN PIETER DAVID CORNELIS
IPC: H04M1/677
Filed: 1967-06-26
Abstract: 1,187,073. Sub-station circuits. NETHERLANDS POSTAL & TELECOMMUNICATION SERVICE, DIRECTOR GENERAL OF. 26 June, 1967 [1 July, 1966], No. 29385/67. Heading H4K. An electronic counter is arranged to count the number of digits dialled in an attempt to establish a connection and cause its release if more than a predetermined number of digits is involved, i.e. if an attempt to make a trunk call is made. The counter shown is installed in the sub-station set. When the receiver is lifted a pulse enters at terminal 5 and switches a transistor T3 to conduction. A capacitor C2 charges to a predetermined level then switches a transistor T4 to conduction and maintains it in this state for about one second enabling a relay Y and resetting a magnetic core K1 through a winding W2. The relay opens a contact Y in the b-wire releasing any previous connection. An off normal contact set is arranged to supply a positive pulse to a terminal 7 as the dial returns to normal after each digit dialled. For each pulse a transistor T1 is enabled enabling a relay X and thus closing its contact x. A capacitor C1 is charged and increases the flux level of the core K1 over its other winding W1 by an amount dependent on the value of the capacitor and its associated resistor. After a predetermined numer of pulses the core becomes saturated and allows the next pulse to switch a transistor T2 to conduction. The transistor T2 enables the transistor T3 causing the b-wire to be opened and core to be reset as previously described. The current supply circuit consists of a Zener diode and an electrolytic capacitor in parallel and an additional diode connected in series with this circuit to prevent the reception of dial tone if the set is connected the wrong way round.
Patent GB-635949-A (GB)
Title: Improvements in or relating to units for sectional bookcases
IPC: A47B87/02
Filed: 1947-11-04
Abstract: 635,949. Sectional cabinets. SMITH, H. F. SMALMAN-. Nov. 4, 1947, Nos. 29391/47 and 17422/48. [Class 52 (i)] The storage units of a sectional bookcase comprise a back wall with end walls hinged thereto, the outer sides of the end walls being provided with members projecting vertically beyond the top and bottom edges and having tongues 20 and recesses 21 which interengage. The shelves 14 fit loosely between the units and have ledges on their undersides to engage the back and ends of the unit below.