baber/WOPTO huggingface dataset:
Patent GB-262347-A (GB)
Title: Improvements in or relating to brooms combined with scrapers
IPC: A46B5/00
Filed: 1926-07-05
Abstract: 262,347. Jenkins, D. July 5, 1926. Hand-scrapers.-A scraper for attachment to a broom comprises a metal plate 4 the bottom edge of which is slit and bent to hold a detachable strip 7 of wood, rubber, asbestos composition, or other material. Each side of the plate may be provided with a pivoted locking-plate 8, as shown in Fig. 5, to assist in securing the strip 7 in position. In a modified form of scraper. the metal plate, in addition to having itself a scraping edge, is provided with a bent plate forming a second scraper.
Patent GB-196210-A (GB)
Title: Improvements in tobacco pipes
IPC: A24F1/00
Filed: 1922-06-17
Abstract: 196,210. Stabback, A. G. June 17, 1922. Tobacco pipes. - A cylindrical or tapered aluminium or other tube c having a glass liner e is securely fitted .in the mouthpiece a and forms a push-joint with the base of the stem. In a modification, a closed annular space may be left between the tube and the liner. The smoke-bore b may be bifurcated, forming passages h which open at the sides of the mouth-piece. According to the Provisional Specification. the liner e may be constructed of material other than glass, for example, of metal.
Patent GB-813374-A (GB)
Title: Improvements in or relating to clothes hangers
IPC: A47G25/28
Filed: 1955-06-10
Abstract: 813,374. Coat hangers. DEUCHER, A. H. June 10, 1955 [June 12, 1954], No. 16821/55. Class 52(5) A hanger which supports garments so that they are available in the required order comprises a jacket-carrying part 3, a second part 2, on which trousers &c. can be draped, connected to and arranged above the jacket-carrying part, and a suspension arm 14 extending from one end of the second part and formed with a notch 13 to engage a bar 16. A freely rotatable suspension hook 19 may be provided and in modifications a vertical or horizontal slit, threaded or bayonet, plug extends from one end of the part 2 for engagement in a wall socket. In a further modification the free end of the suspension arm 14 is turned horizontally out of the plane of the parts 2, 3 and the notch engages the top rail of a chair.
Patent GB-136590-A (GB)
Title: Improvements in Reversible Rotary Engines and Turbines.
Inventor: WHITEHEAD JACOB
IPC: F01D1/30
Filed: 1918-10-16
Abstract: 136,590. Whitehead, J., and Corlett, W. H. Oct. 16, 1918. Circular-flow type; reversing.-The rotor a is a toothed wheel, and the teeth comprise central helical portions and outer parallel portions, as shown in Fig. 2. The working fluid enters at the port e, is redirected on to the rotor teeth by means of inclined slots d cut in the walls of the stator, passes the first exhaust outlet k, and is exhausted at the second one. Alternative inlet and exhaust ports are provided for reversing. Several stages may be placed round the periphery of one rotor.
Patent GB-152113-A (GB)
Title: Improvements in machine guns
IPC: F41A3/38
Filed: 1919-07-05
Abstract: 152,113. Johnston, J. S., and Johnston, M. L. July 5, 1919. Machine guns.-Relates to automatic guns in which the breech mechanism is operated by a longitudinally sliding member and is locked by pawls actuated by this member, and consists (1) in applying this method of locking to a gas-operated gun, the pawls being mounted in recesses in the receiver, and (2) in providing a safety pawl mounted in a recess in the breech-bolt. In the form shown, locking-pawls 20, mounted in recesses 21 in the receiver 3, are rocked into the position shown to lock the breech-bolt 24 by the engagement therewith of lugs 18 on the gas-operated longitudinally sliding member 15, and are racked back into the unlocking position by the engagement of bevelled shoulders 16<c> on the member 15 with lugs 20<a> on the under surface of the pawls. Lost motion between the member 15 and tho breech-bolt is provided to permit the member 15 to actuate the pawls, the member and the breechbolt being held apart to their limiting positions by the spring of the firing-pin 40. A safety-pawl 50 trunnioned at 51 in the breech bolt 24 has a depending lug 53 which lies between the end of the firing-pin 40 and the hammer 25. When the breech-bolt arrives in the firing-position, the hammer forces the pawl 50 out of its path into a recess 54 in the receiver 3.
Patent GB-1141612-A (GB)
Title: Peaked monochromator
IPC: G21K1/06
Filed: 1966-04-18
Abstract: 1,141,612. X-Ray diffraction apparatus with blazed grating. APPLIED RESEARCH LABORATORIES Inc. 18 April, 1966 [21 April, 1965], No. 16983/66. Heading H5R. [Also in Division G2] In a spectrograph comprising a sharply blazed diffraction grating the input and output angles are so varied that for each wavelength of interest the condition for constructive interference is satisfied at the peak of the blaze. Where the grating is reflective this is accomplished by making the output angle differ from the input angle by twice the blaze angle of the grating or in a transmission grating, having a small blaze angle, by making the output angle differ from the input angle by approximately the product of the refractive index of the grating minus unity, times the blaze angle. When the radiation is of short wavelengths, such as in the soft X-ray region, additionally, the angle between the incident light and the reflecting facets of the grooves of the grating is kept smaller than the critical angle of total external reflection so that the grating highly discriminates against second and higher orders. As shown, Fig. 2, a bell crank 64 is pivoted at 70, 76, to define a chord of the Rowland circle 18, the centre of which lies at the apex 68 of the bell crank. The pivots 70, 76, slide in slots 72, 62, whose extensions would melt at 14 where the input slit is placed, the slots 72, 62 being inclined to each other at an angle equal to one half the apex angle of the bell crank 64. The grating 11, which has a radius of curvature twice that of the Rowland circle 18, fixed to the bell crank 64 at the pivot 76, the latter being moved along slot 62 by a screw 81 and nut 80. A parallelogram linkage 26, 27, 28, 29 has two arms 26, 27 pivoted together in line with the centre of grating 11, the arm 26 being fixed to nut 80 and held in alignment with screw 81, so that it is always at the input angle relative to grating 11. Arms 28, 29 have their common pivot 31 sliding in a guideway 69 in the outer end of arm 65 of the bell crank 64. The output slit 20 and detector 22 are mounted on a carriage 24 which is slidable along a guideway 34 and maintained on the Rowland circle 18 by a link 98 pivoted at the apex 68. The guideway 34 is pivoted on the pivot 76 and adjustably fixed to the arm 27, such as by the screw arrangement 36, so that the difference between the input and output angles is kept constant and made equal to twice the blaze angle of the grating 11.
Patent GB-890300-A (GB)
Title: Process for bleaching crude wood pulp, natural or synthetic fibres and textiles produced from or containing such fibres
IPC: D06L4/12
Filed: 1959-05-19
Abstract: Natural or synthetic fibres, e.g. cotton, regenerated cellulose, polyesters and nylon, and textiles produced from or containing these fibres, and crude wood pulp, are bleached with an aqueous solution or dispersion of a peroxide compound which splits off active oxygen, e.g. hydrogen peroxide, sodium peroxide and salts of perboric, percarbonic and perphosphoric acids, in the presence of a water-soluble silicic acid ester.  The silicic acid ester is preferably an alkoxy silane, e.g. tetrakis (2-methoxyethoxy)-silane. The aqueous solution or dispersion may also contain alkali or alkaline earth metal salts, e.g.  Epsom salt.  The treatment is preferably carried out in an alkaline medium, buffering salts, e.g. phosphates, being used for adjusting the pH value, at temperatures higher than 60 DEG C.
Patent GB-1469153-A (GB)
Title: Tension control system for a running web
IPC: B65H23/04
Filed: 1974-04-18
Abstract: 1469153 Automatic control of tension RIGGS & LOMBARD Inc 18 April 1974 17151/74 Heading G3R [Also in Division H2] In a web-tension control system, a web 10 passes over rolls 12, 12' driven by respective D.C. motors 14, 14'; a manually-operated set of ganged potentiometers 42, 42' connected to an A.C. source 40 controls the armature voltages of the motors; potentiometers 38, which are each independently operated by a respective web-tension serving means 16, adjust the field voltages of the motors; and the output 46 of each of the potentiometers 42, 42' is compared with the armature voltage on line 50 and an error signal fed via amplifier 52 to an S.C.R. bridge 54, Fig. 2 which supplies the armature voltage. The bridge is also used as a uni-directional source of constant excitation for the field winding 45. Vernier potentiometers 44, 44' permit minor adjustments in the set speeds of the motors. The tension sensing means 16 comprises a feeler rod 22 riding against a deflection of the web 10 and carried by a support 20 which also carries a counterweight 26. Rotation is transferred via gears 30, 34 to the wiper arm of potentiometer 38.
Patent GB-256754-A (GB)
Title: Improvements relating to the mounting of trays in record cabinets
IPC: A47B81/06
Filed: 1925-07-04
Abstract: 256.754. Rand, J. H. July 4, 1925. Drawers, securing simultaneously. - A card index or filing cabinet has two open sides through either of which the trays holding the cards &c. may be withdrawn front foremost, in the correct position for examination. The trays are hinged to a block or tail-piece 14 which pivots about either of two pins 17, 18 according to the direction of withdrawal, the blocks having slotted openings 16<a> by which they may be freed from one pin on rotation about the other. The pins are elongated in cross section and by means of a lever 35 may be rotated to lie across the exit slots 16a to lock the trays in their closed position. Specification 256,893, [Class 52 (i), Furniture, Fittings &c. for], is referred to.
Patent GB-1378308-A (GB)
Title: Continuous production of n,n,n,n,-tetraacetylethylene diamine
IPC: C07C/
Filed: 1972-04-14
Abstract: 1378308 Tetraacetylethylenediamine BADISCHE ANILIN- & SODA-FABRIK AG 14 April 1972 [15 April 1971] 17262/72 Heading C2C N,N,N<SP>1</SP>,N<SP>1</SP>-Tetraacetylethylenediamine is prepared continuously by reacting N,N<SP>1</SP>-diacetylethylenediamine with acetic anhydride in a ratio by weight of 1 : 3-30 at 120‹-170‹ C. wherein acetic acid is distilled off at the rate at which it is formed, the reaction mixture is cooled, the precipitated tetraacetylethylenediamine is separated, and 50-90% of the residual mixture is replenished with the reactants and returned to the reaction. The process may be conducted in a number of successive reaction zones, or in a column having at least five trays.
Patent GB-1464752-A (GB)
Title: Apparatus for mounting an elongate appliance or tool on a  means of conveyance
IPC: A01D34/28
Filed: 1974-02-05
Abstract: 1464752 Coupling implements to vehicles F DE MEEUS D'ARGENTEUIL 5 Feb 1974 [5 Feb 1973] 17265/75 Divided out of 1464751 Heading A1P [Also in Division F2K] The description is substantially the same as that appearing in Specification 1464751 but the claims are directed to the connection between frames 3 and 5.
Patent GB-219330-A (GB)
Title: A device for improving the cooling action in cast machine parts
IPC: F02F1/10
Filed: 1924-07-18
Abstract: 219,330. Maschinenfabrik Esslingen, and Greiner, F. July 18, 1923, [Convention date]. Casting processes; moulds.-In order to ensure density in a cast machine-part, such as the cylinder a or cover of an internal-combustion engine, and' to assist in keeping it cool in use, one or more sheet-metal pieces c, d are so cast in that they project from the casting. The projecting part may be bent, corrugated, or rolled up to increase the surface in contact with the air or other cooling medium e or may be formed as a tube to carry the cooling medium. In a modification tubes carrying cooling medium are cast on, if necessary by means of projecting ribs, lugs, &c. The Specification as open to inspection under Sect. 91 (3) (a) states also that the tubes may be cast in the casting. This subject-matter does not appear in the Specification as accepted.
Patent GB-708218-A (GB)
Title: Movable flap louver windows
IPC: E06B7/084
Filed: 1952-07-09
Abstract: 708,218. Louvre windows. AGNEW, A. F. July 9, 1952 [July 11, 1951], No. 17324/52. Class 20 (3) The flaps 11 of a louvre window are secured by lugs 13 to members which are journalled in holes in a channel-sectioned operating stile 7 and consist of a journal portion 14, a pinion 16 and a disc 18, the teeth of the pinions 16 being adapted to mesh with teeth 23 formed on one side of a series of holes 20 in an actuating strip 19 extending and movable longitudinally of the style 7 and positioned between the web of the style and the discs 18. The pinions 16 may have teeth over only a portion of their peripheries and the operating means for the strip 19 comprises a driving pinion 32 which meshes with a bevel gear and causes endwise movement of a screw secured to the strip 19. The flaps 11 are mounted in channel-sectioned holders 12 having ridges 43 which engage in grooves 42 or abut against ridges formed in or on the stiles at each side of the window.
Patent GB-938786-A (GB)
Title: Improvements in or relating to synthetic resin compositions
IPC: C08L61/20
Filed: 1960-05-17
Abstract: A storage-stable synthetic resin composition comprises an aqueous solution of an aminoplast resin and an aliphatic tertiary amine salt of sulphuric acid, monofluorophosphoric acid, an aryl sulphonic acid in which the aryl group contains less than 8 carbon atoms or an alkyl sulphonic acid or an alkyl sulphonic acid in which the alkyl group contains 3 carbon atoms or less, the amine salt being at least 1% soluble in water.  The composition can be used as a binder for wood flakes for chip board, paper veneers for plywood and wood flour for mouldings.  Aliphatic tertiary amines include trialkyl, trialkanol and mixed amines, arylalkyl amines and alicyclic amines.  A ratio of 0,7 to 2,0 moles of aldehyde to each amino group can be used in preparing the aminoplast.  If more urea, e.g. at a ratio of 1,9 :1 or greater, additional urea can be added.  Mineral and vegetable waxes can be mixed with the products.  In the example the resin is prepared by first refluxing urea with formaldehyde the pH of which has been adjusted to 7,3 by adding triethanolamine.  Reaction is continued at pH 6,5 (adjusted with formic acid).  Triethanolamine is added (to pH 8,5), the mixture is concentrated to S.G. 1,29.  After cooling, urea is added and the pH is adjusted to 7,0.ALSO:A moulded product comprises wood flakes bonded together by means of a binder which is the cured product from a composition comprising an aqueous solution of an aminoplast resin and an aliphatic tertiary amine salt of sulphuric acid, monofluoro-phosphoric acid, an arylsulphonic acid in which the aryl group contains less than 8 carbon atoms or an alkyl sulphonic acid in which the alkyl group contains 3 carbon atoms or less, said amine salt being at least 1% soluble in water.  To increase water repellency a small proportion of a wax such as paraffin, slack, microcrystalline or carnauba wax may be incorporated.  In an example the particles bonded were aspen flakes, a ureaformaldehyde resin solution containing paraffin wax emulsion and triethanol-ammonium sulphate being used as binding agent.
Patent GB-385531-A (GB)
Title: Improvements in diffusion or mercury vapour pumps
IPC: F04F9/00
Filed: 1932-01-20
Abstract: 385,531. Mercury-vapour pumps. LAMM, U. and ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET, Võsteras, Sweden. June 20, 1932, No. 17395. [Class 71.] A mercury-vapour pump has a cooling jacket 7 surrounding the pump cylinder 6 and a cooling jacket 10 surrounding that portion of the suction pipe nearest the pump, connected in series so that the jacket 10 receives first the cooling medium. The vapour rises in the tube 2 and escapes partly from the top and partly through orifices 3. The mercury vapour escapes through hooded shields 4, 5 forming nozzles and entrains air in the annular space between the shields and the cylinder wall. An outlet 8 leads to a low vacuum pump or vacuum tank. The area of the pipe 9 is suddenly increased above the nozzle 4 to decrease the velocity of flow and to increase the condensation effect. A small pressure drop occurs here.
Patent GB-563595-A (GB)
Title: Improvements relating to microphones
IPC: H04R3/00
Filed: 1942-12-08
Abstract: 563,595. Telephonic transmitters and circuits. BEEKLEY, F. C. Dec. 8, 1942, No. 17445. Convention date, Dec. 26, 1941. [Class 40 (iv)] A microphone cancels ambient or undesired sounds by impressing them in balance at two spaced microphone portions (e.g. two separate diaphragms or opposite sides of the ' same diaphragm) through two adjacent openings spaced apart a small fraction, say quarter, of a wave length of the highest frequency it is desired to cancel. Fig. 1 shows a bent base-plate 10 supporting casings 13 with diaphragms 16 associated with carbon-granule or moving-coil microphones connected in balanced relation, Figs. 2, 3, 4 (not shown), so as to cancel out sounds impressed equally on the two diaphragms. In Fig. 6, the undesired sounds pass through openings 67, 68 to opposite sides of a diaphragm 70 carrying a moving coil 73, whilst in Figs. 7 and 8 undesired sounds pass through two spaced openings 87 (three-eighths of an inch apart) to opposite sides of a diaphragm 82 carrying a carbon-granule microphone 84.
Patent GB-530036-A (GB)
Title: Improvements in the regeneration of spent catalysts in the synthesis of hydrocarbons from carbon monoxide and hydrogen
IPC: B01J23/94
Filed: 1939-06-15
Abstract: 530,036. Regenerating thorium catalysts. POTTS, H. E. (Naamlooze Vennootschap Internationale Koolwaterstoffen Synthese Maatschappij (International Hydrocabon Synthesis)). June 15, 1939, No. 17466. [Classes 1 (i) and 1 (iii)] Thorium is recovered from spent catalysts used for hydrocarbon synthesis by extracting the catalyst with a mineral acid and precipitating from the solution a sludge containing large amounts of thorium, dissolving this in sulphuric acid and reprecipitating the thorium as thoriumpotassium sulphate, and converting this precipitate into thorium carbonate which is worked up to reconstitute the catalyst. The first treatment with mineral acid may be effected as in Specification 504,700; the precipitated sludge may contain thorium and iron in proportions 1:3.. The conversion of the thorium-potassium sulphate into carbonate is effected by treatment with alkali carbonates under such conditions that potassium sulphate predominates over sodium sulphate. Excess alkali carbonate may be added until the thorium carbonate redissolves, whereupon iron may be precipitated by heating the solution and thorium hydrocarbonate is then precipitated by addition of acid.
Patent GB-462971-A (GB)
Title: Improvements in apparatus for developing sensitised layers
IPC: G03D7/00
Filed: 1935-06-18
Abstract: 462,971. Photographic developing- apparatus. MORSE, S. H. June 18, 1935, No. 17515. [Class 98 (ii)] Development by ammonia or other vapour is produced by a heated tank with a cut away part in which revolves a cylinder and between which and the tank extends a layer of fabric or other porous material through which the developing gas passes before impinging on the sensitized surface, thereby preventing condensation on the sensitized surface. A housing a, b has a front cover plate f containing a slot g with a flexible cover g<1> and guide h through which is fed the sensitive material, delivery being through an aperture i closed by a cover plate il at the bottom of the housing. The developing tank j has a side k of concave form which is cut-away at l. Adjacent to the cut away portion is a revolving cylinder m driven by an electric motor. A frictional layer r of rubber covers the cylinder and a layer s of porous fabric extends over the whole length of the opening, covering the cut away portion l of the tank, and being connected at its upper edge to a support u on the wall of the housing, and at its lower edge to a spring x and the delivery shoot w. The springs x, y resiliently hold the tank against the cylinder. The developing liquid is fed through a needle valve onto inclined troughs 5 in the developing tank which is heated by electric heaters. A suction pipe 9 discharges the fumes. The cylinder m may be hollow and contain heaters 13 to maintain the cylinder at substantially the same temperature as the developing gas.
Patent GB-1191901-A (GB)
Title: Improvements in or relating to Cutting Presses
IPC: B26F1/40
Filed: 1967-04-17
Abstract: 1,191,901. Cutting-out presses. BRITISH UNITED SHOE MACHINERY CO. Ltd. 17 April, 1967 [15 April, 1966], No. 17520/67. Heading B4B. [Also in Division F2] A cutting press comprises a lower platen 12 supporting a conductive cutting pad 13 on which material 14 to be cut and a cutting die 16 are supported, and an upper platen 30 which is supported by a carriage 22 movable transversely of the platen 12 by hydraulically powered means, the platen 30 being movable towards the platen 12 by means including a hydraulic ram mounted on the carriage. The carriage is provided with rollers 24 movable along a pair of rails 20. The platen 30 is supported at the lower end of a vertically slidable cylinder 28 mounted in a cylindrical bearing block 26 supported by the carriage. Mounted on a cover-plate 38 is a hollow pistonrod 40 which carries a piston 42 slidably accommodated in the cylinder 28. The piston-rod 40 and piston 42 have a bore extending therethrough by means of which, through a flexible hydraulic hose 44, a chamber formed in the cylinder 28 below the piston 42 is connected with a source of pressure fluid from a pump 48 driven from an electric motor 50 and flywheel 50a. Springs 34 urge the platen 30 upwardly to its raised position away from the platen 12. For moving the carriage 22, and thus the platen 30, transversely of the platen 12 there is provided a screwthreaded rod 60 driven by a reversible hydraulic motor 68, the rod 60 threadedly engaging a nut 64. Electrical control means are provided to enable the press to be operated in a number of different modes and to this end the control means comprises electrical timer devices for controlling the return stroke of the platen 30 after cutting, the retreating movement of the carriage 22, and the return movement of the carriage. In addition, the platen 30 is provided with two hand sensing heads 510 (see Division F2) and with two die sensing heads 600 which are provided in electrical circuits to control the retreating and return movements of the carriage. Preferably, the retreating movement of the platen 30 is effected at a relatively fast speed while the return movement thereof is effected at a relatively slow speed. Reference has been directed by the Comptroller to Specifications 1,060,656 and 1,084,082.
Patent GB-109351-A (GB)
Title: Improved Gland.
IPC: F16J15/00
Filed: 1916-12-07
Abstract: 109,351. Cockburns, Ltd., Cockburn, D., and MacNicoll, D. Dec. 7, 1916. Glands; draining.-The gland 5 of the stuffing- box for a vertical valve spindle is formed with a groove 4 for collecting leakage. Perforations lead from the inner bore of the gland to the groove 4, which is drained by a pipe. The gland is formed with a downward extension 1, and is fitted with auxiliary packing 2 secured by an auxiliary gland 3.