baber/WOPTO huggingface dataset:
Patent GB-380543-A (GB)
Title: Safety lock
IPC: E05B45/02
Filed: 1931-07-13
Abstract: 380,543. Latches and locks. KOLAR, 0., 471, Hradebni, Nymburk, Czecho-Slovakia. July 13, 1931, No. 20111. [Class 44.] The latch 3 and the bolt 2 of a lock are adapted to be operated by the same key 4. To retract the latch 3 the key is turned anticlockwise until the end of a spring- pressed lever 7 rests in a notch in the key so that on turning the key in the opposite direction this lever acts as a strut and the latch is retracted. A pin 7<1> on the lever 7 enters a notch 11<1>, Fig. 4, in a spring- pressed lever 11 to hold the latch retracted. To release the latch, the key is pulled slightly outwards and turned to engage the part 11<11> of the lever 11. The bolt 2 is shot by the key acting on a surface 21 and when the key is turned a second time, a spring-raised lever 12 which has moved to the left with the bolt is pressed down and is retained by a pin 12<1> which enters a notch 13<1>, Fig. 4, in a spring-pressed lever 13. In unlocking, the key is first pulled slightly outwards and turned to engage the part 13<11> of the lever 13 to release the lever 12, and then pushed in and turned to retract the bolt by engaging the lever 12. Spring catches 16<1> enter notches 17, 18 to hold the bolt 2 shot or retracted and are removed by a lever 16<11> which is engaged by the key when it shoots or retracts the bolt. To indicate the movements of the key a bell 24 is struck by a lever 21 operated by a toothed wheel 20 which is turned with the key.
Patent GB-782313-A (GB)
Title: Manufacture of new 2:4:6-triiodobenzoic acid compounds
IPC: A61K49/04
Filed: 1955-07-12
Abstract: 3 : 5 - Diacylamino - 2 : 4 : 6 - triiodobenzoic acid derivatives for use as X-ray contrast agents (see Group VI) are prepared by first iodinating 3 : 5-diamino-benzoic acid with a small excess of iodine monochloride to form 3 : 5-diamino-2 : 4 : 6-tri-iodobenzoic acid which is then acylated by reaction with the appropriate acid anhydride or acid halide.  The acid may be converted to its alkali metal salt or to its esters, for use in aqueous or oily media, respectively.  In examples: (1) 3 : 5-diamino-2 : 4 : 6-tri-iodibenzoic acid is reacted with acetic anhydride to give the 3 : 5-diacetylamino derivative, which is converted into its ammonium salt, and (2) into its sodium salt. Similarly obtained are the corresponding propionyl-, butyryl and n-valeryl derivatives. Hydrogenation of 3 : 5-dinitrobenzoic acid in the presence of palladium is employed for the preparation of 3 : 5-diaminobenzoic acid which is treated in solution in dilute hydrochloric acid with iodine monochloride to give 3 : 5-diamino-2 : 4 : 6-tri-iodobenzoic acid.  Reference has been directed by the Comptroller to Specification 748,319.ALSO:An X-ray contrast agent comprises a compound of the general formula <FORM:0782313/VI/1> in which R represents an acyl radical, or a salt or ester of such a compound, and an inert liquid diluent.  Alkali metal, specifically sodium, and ammonium salts, are referred to.  The preparation is described (see Group IV (b)) of compounds of the above formula where R represents acetyl, propionyl, butyryl and n-valeryl radicals respectively. Alkali metal salts are preferred for use in aqueous media, esters for use in oily media.  Reference has been directed by the Comptroller to Specification 748,319, [Group IV (b)].
Patent GB-974497-A (GB)
Title: Production of coated paper
IPC: C09K23/00
Filed: 1961-06-05
Abstract: 974,497. Coating webs; pressure-sensitive record sheets. MEAD CORPORATION. June 5, 1961 [June 8, 1960],No. 20246/61. Headings D1L and D2B. Pressure-sensitive record sheets are made by applying an aqueous dispersion of oil-containing, pressure-rupturable, microscopic capsules and cellulose fibres to a moving web, distributing the dispersion over the surface of the web and then drying the film on the web. The dispersion is distributed by a reverse-turning spread shaft which has a surface speed which is greater in magnitude than and opposite in direction from the movement of the web and is sufficient to produce a film of uniform thickness. As shown, a web of paper 10 is unwound from a roll 11, is passed over and under rolls 12 and 13 to applicator roll 16, which applies coating 15. The paper then passes under bar 17, over reverse-turning roll 18 and round roll 19 where the coating is metered by air knife 20. It then passes over the guide rolls 24 and 25 and spread shafts 22 and 23 which are turned in a direction and at a speed as defined above, and so to a drier (not shown). The spread shafts 22 and 23 and roll 18 are surfaced with a smooth, non- wettable material, e.g. polytetrafluorethylene, brass or hard rubber.
Patent GB-257262-A (GB)
Title: Method of applying zinc coatings to iron articles
Inventor: LIBAN TADEUSZ
IPC: C23C2/30
Filed: 1926-08-17
Abstract: 257,262. Liban, T. Aug. 18, 1925, [Convention date]. Fluxes.-In a method of applying zinc coatings to iron articles by dipping the latter into a molten zinc bath which may contain aluminium, a molten layer of a mixture of fluorine compounds and zinc chloride or zinc chloride and ammonium chloride is provided on the top of the zinc bath and the articles in a wet state are passed through the layer into the bath. In an example in which the zinc bath contains 1.5 per cent of aluminium, the layer comprises a mixture of 17 parts of zinc chloride, 2.5 parts of ammonium chloride and 1 part of sodium aluminium fluoride. Organic fluorides such as fluorbenzol or double salts of fluorine may be used as the fluorinic compound.
Patent GB-1190781-A (GB)
Title: Semiconductor Voltage Limiting Devices
Inventor: BOOHER ROBERT K
IPC: H01L27/02
Filed: 1967-05-02
Abstract: 1,190,781. Transistor voltage limiters. NORTH AMERICAN ROCKWELL CORP. 2 May, 1967 [2 May, 1966], No. 20365/67. Heading H3T. [Also in Division G3] Voltage excursions at a point, more particularly at the input of a field effect transistor integrated circuit, are limited in one direction by conduction of a junction rectifier and in the other by conduction of a semi-conductor device having a control electrode connected to the point. Thus the voltage excursions on line 29 are limited in one direction by conduction of a field effect transistor 33 connected to a reference voltage line 42 and in the other by a diode 40 formed between the drain 41 and the substrate 28 the latter being connected to another reference voltage. The voltage on line 42 is limited at a value relative to 28 (e.g. earth) equal to the combined threshold voltage of field effect transistors 34, 38, 39.
Patent GB-1006764-A (GB)
Title: Quick-change expendable brush for dulling machines
IPC: A46B13/00
Filed: 1964-05-15
Abstract: 1,006,764. Brushing apparatus. E. F. HARACZ. May 15, 1964, No. 20387/64. Heading A4K.  In a drilling machine, a hollow cylindrical brush 20 is releasably longitudinally clamped between arbors 26 and 35, which are rotatably mounted in bearings 23 and 32, adjustably secured to the plates 10 of the machine. To clamp the brush, bolt 39 is screwed into tapped hole 29 thus drawing arbor 35 inwardly through bearing 32, so that the conical seats 27 and 36 are forcibly fitted into the rim of the brush cylinder. Block 43 is used as a hammer in separating arbors 26 and 35. A worksupporting counter roller (Fig. 1, not shown) is provided.
Patent GB-376954-A (GB)
Title: Improvements in and relating to the location of travelling craft by wireless direction-finding apparatus
IPC: G01S1/02
Filed: 1931-07-17
Abstract: 376,954. Directive wireless signalling. CHAMIER, F., 7, De Walden Court, New Cavendish Street, London. July 17, 1931, No. 20538. [Class 40 (v).] The course of an aeroplane is automatically indicated to the pilot by signals sent from two co-operating land station, which periodically take bearings on the moving craft and transmit impulses which control the position of two indicating arms or tensioned wires, so that their point of intersection over a reference map shows the track of the moving craft. The track may be marked on the map by the action of an electric current passing through the point of intersection of the wires. The moving parts at the two land stations and on the craft are controlled through rotating drums driven at a constant speed by clockwork mechanism. The drums carry contacts which are displaced relatively so as to transmit driving impulses to a series of pawl-and-ratchet devices in proper sequence. The operation is as follows. Calling signals are first transmitted from an aerial A1, Fig. 3, on the aircraft as the contact drum W2 is started up. These are received at the land station, Fig. 2, and start up a drum contact W1 through a relay J1. Should the aeroplane crash, failure to :receive successive signals is indicated by the lamp Sg. Contacts on the drum next swing the direction-finding frame R first in one direction through a pawl K2, and other contacts then reverse this swing and extend it through a pawl K1. The effect of the first swing is repeated on the wheels g1, g2 on the aeroplane through the drum contacts, Fig. 3, which operate pawls K5, K6. At the land station a pawl K3 simultaneously rotates a wheel d until the frame R has reached the critical point at which it is bearing on the distant aircraft. A relay J2 now opens to cut out the pawls K1, K3. Next drum contacts from 20 onwards cause the transmitter A2 to send out a number of impulses determined by the new setting of the D.F. frame R. A similar series of impulses is then sent from the second land station (indicated by the drum contacts from 31 onwards). These successive impulses are received at E3 on the plane and close a relay J9 so that, as the contacts C6, C7 reach the strips shown on the drum W2, pawls K7, K8 are operated and set the two wires S1, S2 into such a position that their point of intersection shows the actual position of the aeroplane on the reference map.
Patent GB-441981-A (GB)
Title: Improved construction of block for roadways, stairways and the like
IPC: E01C5/18
Filed: 1935-07-19
Abstract: 441,981. Paving-blocks. LORD, E., 8, Walden Place, Welwyn Garden City, Hertfordshire, and WEBSTER, W. K., Lea Croft, Oatlands Drive, Weybridge, Surrey. July 19, 1935, No. 20591. [Class 87 (i)] Blocks for paving roads, stairways, and like surfaces consist of a rubber or like resilient composition 4 reinforced by a cast metal plate 1 provided with perforations 2 and stubs 3, the upper ends of which are flush with the wearing face. The edges of the plate 1 may be flush with the sides of the block, or may project therefrom, and may be formed on two sides of the block as a V-shaped projection 6, Fig. 6, with a corresponding groove on the other sides so that the blocks may interlock. The stubs 3 may be round, oblong, or other shape, and arranged in any manner.
Patent GB-196562-A (GB)
Title: Improvements in toothed gearing
IPC: F16H3/38
Filed: 1922-07-27
Abstract: 196,562. Aktiebolaget Ljungstr÷ms Angturbin. April 18, 1922, [Convention date]. Variable-speed and reversing gearing.-In toothed gearing, particularly reversing or variable-speed gearing, of the type in which the wheels are intermeshed by movement in their own planes, additional wheels or wheel parts with extended teeth are provided on the shafts carrying the main wheels in order that they may engage frst and turn the shafts so as to ensure proper meshing of the main teeth. In the reversing- gear shown, a turbine 1 drives a locomotive through gearing 2, 6 and a shaft 7 carrying gearwheels 8 which are adapted to engage either directly or through idle wheels 10 on shafts 33 with wheels 9 on a shaft 5 driving the trackwheels through cranks 4 and rods 3<a>. Where helical gearing is used the wheels 10 have two sets of intersecting teeth. The shaft 10 is carried in a pivoted frame 12 and the shaft 33 in an eccentric 13, the parts being operated by the link work and cam shown from an oil-pressure cylinder 11 as described in Specification 128,206 to disengage and engage the wheels as required. The shafts 5, 7, 33 carry one or more additional toothed wheels 14, 15, &c., which may be formed in two or more parts and are of greater height to initiate the meshing. They may be pointed, with deep spaces and undercut flanks, and, as shown in Fig. 6, may be formed as extensions 29, 30 of the main teeth 31, 32. Further they may gear together simultaneously with the main teeth, or they may be too thin peripherally so to do.
Patent GB-238575-A (GB)
Title: Improvements in or relating to wall coverings
IPC: D06N7/00
Filed: 1925-08-17
Abstract: 238,575. Dodman, A. C. Aug. 16, 1924, [Convention date]. Wall and ceiling coverings.-A fabric formed wholly or partly of artificial silk fibres which are wide with respect to their thickness, for example 1/100 inch by 3/64 inch wide, is pasted or glued on a backing of paper, burlap. &c. The wide side of the fibres may lie on the backing. The facing fabric may have an open or close weave ; the fibres running one way may be artificial silk and those running the other way may be cotton, or both warp and weft may be a mixture of artificial silks and other material. The baching may be tinted, decorated, or embossed to show through the facing fabric.
Patent GB-735439-A (GB)
Title: Improved signals for index cards
IPC: B42F21/10
Filed: 1952-08-16
Abstract: 735,439. Books; filing papers. ELBOUGHAN, H. H. Nov. 10, 1953 [Aug. 16, 1952], No. 20653/52. Class 16. Signals. Signals, for index cards or sheets which may be temporarily or permanently bound in books or filed separately and in which parts of the signals engage in pairs of slots punched in the cards comprise flexible and resilient material such as a plastic, secured against accidental dislodgment by elements engaging in or exerting pressure against the edges of the slots and having an opening or series of openings which can be laterally compressed while the signal is inserted into the slotted card to permit indentations in. the signal to anchor in the slots. As shown in Fig. 2, the body b of the signal has an upper tongue a which projects beyond the top of the card and a lower tongue c with shaped shoulders el which anchor the lower tongue. The tongue a is shaped so that indentations h are slightly wider apart than the slots provided and a diamond cut out opening f allows compression of the signal laterally so that the tongue a can be passed through the slot. As shown in Fig. 3, the tongue a is anchored by shoulders d, while the tongue c has indentations i and a notch k allowing compression laterally of the signal. A number of different similar shapes are shown, in one of which the anchoring shoulders are replaced by a slotted part cut into one tongue, the other having the indentations and cut out opening. As shown in Fig. 6, a series of notches n are provided on the sides of the body b so that the signal may be compressed longitudinally to allow shoulders d<SP>1</SP> and e<SP>1</SP> on tongues a and c to engage the slots and anchor the signal. Specification 527,530 is referred to.
Patent GB-1104430-A (GB)
Title: Improvements in apparatus for nesting and enveloping sheet material
IPC: B43M5/04
Filed: 1965-05-17
Abstract: 1,104,430. Enveloping sheets. H. P. SHERMAN. 17 May, 1965 [18 May, 1964], No. 20655/65. Heading B8C. [Also in Division B6] An insert C<SP>1</SP> is enclosed within the two folds of a wrapper S<SP>1</SP>, by a system of rollers and shoots arranged so that the wrapper is buckled into the nip of a pair of rollers 24, 54 to form the first fold around an insert fed by rollers 51, 38, and is then buckled again into the nip of rollers 54, 61 to form a second fold. In the embodiment shown, shoots 26, 56 provided with stops 27a, 58 support the leading ends of the wrapper S<SP>1</SP> during the buckling processes. The feed of sheets S<SP>1</SP> and C<SP>1</SP> by driven rollers 24, 51 is controlled through clutches by limit switches 27, 28 in the shoot 26 and limit switch 42 controlled by a rod 39 detecting the presence of a card C<SP>1</SP> above the first folding position. Sheets are fed singly from piles S, C supported on plates 21, 36, by feed mechanisms 22, 22a.
Patent GB-878092-A (GB)
Title: Improvements relating to devices for releasing fluid pressure
Inventor: LANDEG PETER EDMUND
IPC: F16K17/16
Filed: 1957-07-01
Abstract: 878,092. Pressure-relieving devices. C.D. PATENTS Ltd. June 11, 1958 [July 1, 1957], No. 20742/57. Class 135. A fluid-pressure relieving device comprises a holder which has two mating parts 1 and 2 co-operating to provide a passage through which fluid can pass a bursting disc 6 of carbon or graphite which normally closes the passage, a support member 15 located in a recess in one of the mating parts so as to be fixed against movement away from the disc but free to move towards it and, when in its furthermost position from the disc, to be spaced therefrom a distance which permits the disc to flex towards this support by an amount which is insufficient to cause rupture of the disc under reversed pressure conditions, the disc having secured to marginal portions of each of the two faces, sealing gaskets 7, 8. The support 15 may also be of carbon. An identification tap 11 or angularly-spaced tabs formed on one of the gaskets may adapt the disc for assembly only in a particular holder (Fig. 1, not shown).
Patent GB-1209205-A (GB)
Title: Method and apparatus for separating organic high molecular weight substances from solutions and suspensions
IPC: C08F2/00
Filed: 1968-05-02
Abstract: 1,209,205. Organic substances of high molecular weight; separation from solutions or suspensions in liquid. MITSUI PETROCHEMICAL INDUSTRIES Ltd. 2 May, 1968 [2 May, 1967], No. 20916/68. Heading BIB. An organic substance of high molecular weight, such as polyethylene, polypropylene, polybutadiene, and various co-polymers, is separated from a viscous solution or suspension in a liquid organic medium by passing the hot solution or suspension through nozzle 5 in the upper part of tank 10 where the liquid medium undergoes flash evaporation, and the polymer adheres as a solid or liquid to the inner wall of baffle tube 7. In the case of a solid deposit, it gradually increases in amount, and then flakes off by gravity and the pressure of the stream of flashed vapours. The flakes of polymer collect in the base of tank 10, and are removed by rollers 11, 11'. The flashed vapours are removed from tank 10 through pipe 12. The inner wall of tube 7 may be lined with glass, or with a fluorine-containing resin such as polytetrafluoroethylene, polytrifluorochloroethylene, or a copolymer of tetrafluoroethylene and hexafluoropropylene The number of baffle tubes can be increased to two or more in accordance with the number of nozzles used. An example, relating to the separation of hexane from ethylene-propylene-dicyclopentadiene co-polymer, is given.
Patent GB-1524961-A (GB)
Title: Solar heating devices
IPC: F24S10/55
Filed: 1975-08-13
Abstract: 1524961 Solar heaters; ventilating buildings R O POSTGATE 13 Aug 1975 [13 May 1974 24 May 1974 (2)] 21035/74 23212/74 and 23399/74 Headings F4U and F4V A solar heater comprises a panel having an absorber element of sheet material formed so as to have surfaces inclined so as to provide multiple-reflections of the incident energy. The absorber element is provided with a black surface. As shown in Fig. 2, the absorber element is formed of aluminium foil and is mounted in a frame 12 beneath a transparent cover 14, the frame having an inlet 16 and an outlet 17 for air and its base being covered with insulating material. The absorber element may alternatively be adapted to form channels for the passage of water, Figs. 5, 6 (not shown). The solar heater panel may form part of the roof structure of a building, Fig. 7 (not shown). The absorber element may alternatively consist of cone shaped elements 60, Fig. 10, fitted together between a transparent layer 61 and a tension sheet 62. Air is brought into contact with the elements 60 through apertures 65 or 66 and cones 67 may be provided within the elements. As shown in Fig. 8, air is passed through a solar heater on the roof of a building provided with ducts 32, 33, 35, 40 and a thermal storage element 39. The down duct 35 is provided with a fan 36 controlled by a thermostat 37 and warm air can be discharged into a living room through a controllable vent 38 or into the thermal storage element 39. The duct 32 may have a filtered fresh air intake 41 and a vent 42 may be provided to allow hot air to escape after passing over a water heating pipe 34, when house heating is not required.
Patent GB-136633-A (GB)
Title: Grinding Wheel-guards.
Inventor: SUMBLING WILLIAM HENRY
IPC: B24B55/06
Filed: 1918-12-17
Abstract: 136,633. Sumbling, W. H. Dec. 17, 1918. Guards. - A guard for a grinding-wheel J on a spindle C turning in a boss B carried by the standard comprises an adjustable flanged plate G with a slot 2 which may fit the boss B, the guard being secured in the required position by a clamping-plate 5 overlapping the edges of the slot 2 and secured by a bolt 3 engaging a slot 4, which may have a curved end, in a bracket D integral with the frame. A boss 6 on the plate 5 engages the sides of the slot 2.
Patent GB-500418-A (GB)
Title: Improvements in or relating to atmospheric vapour burners
IPC: F23D11/46
Filed: 1938-07-16
Abstract: 500,418. Atmospheric vapour burners. EKSTROM, H. July 16, 1938, No. 21159. [Class 75 (i)] In a burner in which a needle valve 6 for controlling the vapour inlet 1 to the nipple 5 is provided with a screw-threaded operating spindle 8 having a pin 15 projecting into a slot 14, or slots, in a loose pinion 13 in mesh with a rack 12 on the stem 10 of a cleaning needle 11 so that the latter is not operated until the valve 6 has been fully opened, the pinion 13 is adapted to be connected with the spindle 8 while the needle 11 is being moved into the cleaning position, or after it has reached that position, so that the needle 11 commences to return from the cleaning position immediately the spindle 8 is turned in the opposite direction to move the valve 6 towards the inlet 1. In the form shown in Fig. 3, a portion 16 of the slot 14 is obliquely arranged so that the pinion 13 can be displaced by the pin 15 and clamped to the threaded portion of the spindle 8. In other forms, the pin 15 is adapted to be wedged in the restricted end 17 of the slot 14, Fig. 8 ; or engage an abutment in the end of the slot, either the pin or the abutment being resilient; or the pin is made of iron or steel and held by a small magnetized piece of steel in the end of the slot. Specification 425,462 is referred to.
Patent GB-246398-A (GB)
Title: Improvements in gas washing boilers and the like
IPC: D06F1/00
Filed: 1925-08-24
Abstract: 246,398. Dean, W. Aug. 24, 1925. Addition to 212,844. Washing-boilers.-The washing-boiler claimed in the parent Specification has the corrugated directing plate c in the space between the casing a and the pan b extending from a point adjacent the gas burners d to the top of the pan. The upper part c<1> of the plate may be plain, the top edge e being flanged over to rest on the boiler casing.
Patent GB-1211980-A (GB)
Title: Aperture tubes for electronic particle study apparatus
Inventor: HOGG WALTER ROBERT
IPC: G01N15/12
Filed: 1969-04-25
Abstract: 1,211,980. Particle analyzing apparatus. COULTER ELECTRONICS Ltd. April 25, 1969, No. 21236/69. Heading G1N. To reduce shunt capacitance between the electrolyte in a 'Coulter' aperture tube and the surrounding fluid bath an air-space 38 is provided between them as by making the bottom of the tube double walled except in the aperture area. Alternatively (i) the tube may be surrounded by a skirt Fig. 6 (not shown) or (ii) a small portion of electrolyte at aperture level in the bottom of the tube or a well therein may be connected to suction by a polyethylene tube (26<SP>1</SP>) Figs. 4, 5 (not shown).