baber/WOPTO huggingface dataset:
Patent GB-327642-A (GB)
Title: Improvements relating to sound diaphragms
IPC: G11B25/04
Filed: 1929-06-20
Abstract: 327,642. Guinea Portable Gramophone Co., Ltd., (Madsen, C. P.). June 20,1929. Diaphragms.-A collapsable conical diaphragm for use in loud-speakers, phonographs, and more particularly a portable phonograph as described in Specification 263,071, is formed from a disc 2 from which a sector has been removed, the radial edges being secured together by inserting one edge between spring members 3, 4 secured, as by riveting, on opposite sides of the other edge. Correct positioning of the edges can be observed through holes 8 in the springs, and the portions of the abutting edges which are not positively united in contact are spaced apart, as by cut-away portions 12. According to a modification, Fig. 3 (not shown), the cone is formed from three sectors secured together by spring clips. The diaphragm may be made of paper impregnated with various stiffening and waterproofing materials, black vulcanized fibre or fully-cured bakelite impregnated paper known as " Bakelite Dielects."
Patent GB-1416501-A (GB)
Title: Phenyl derivatives
IPC: A01N35/06
Filed: 1973-04-19
Abstract: 1416501 Derivatives of 2,3-dihydrobenzofuran F HOFFMANN-LA ROCHE & CO AG 19 April 1973 [21 April 1972] 18996/73 Heading C2C The invention comprises compounds of general Formula I wherein R, R 1 , R 2 , R 5 , R 6 , R 7 , R 8  and R 9  each represent a hydrogen atom or a lower alkyl group, R 3  and R 4  each represent a lower alkyl group, A represents a hydrogen atom or a lower alkyl, lower alkoxy, lower alkenyloxy or lower alkynyloxy group and B represents a hydrogen atom or B represents a lower alkoxy, lower alkenyloxy or lower alkynyloxy group when A represents a hydrogen atom or a lower alkyl group or A and B together represent an additional bond or an oxygen bridge, C and D each represent a hydrogen atom or together represent an additional bond, E and F each represent a hydrogen atom or together represent an additional bond or when C and D each represent a hydrogen atom E and F can also represent an oxygen bridge, p stands for 1 or 2, n and m each stand for zero or 1 and one of the symbols X and Y represents an oxygen atom and the other symbol represents a methylene group which may be mono- or disubstituted with a lower alkyl group. " Lower " means containing up to 6 carbon atoms. These compounds may be prepared by (a) reacting a compound of general Formula II where Z represents a chlorine, bromine or iodine atom or a methylsulphonyloxy or p-toluene sulphonyloxy group, with a compound of the general Formula III where M stands for an alkali metal or alkaline earth metal, (b) hydrogenating a phenyl derivative of Formula I in which at least one of the pairs of symbols A and B, C and D or E and F together represent an additional bond, (c) epoxidizing a phenyl derivative of Formula I in which at least one of the pairs of symbols A and B and E and F together represent an additional bond, or (d) reacting a phenyl derivative of Formula I in which A and B together represent an additional bond, with water or a lower alkanol in the presence of acid or a mercury salt (or organomercury compound obtained being subsequently reduced) and, in the case wherein the reactant is water, reacting a resulting hydroxy compound with a compound of the general formula R 10 -Z wherein R 10  represents a lower alkyl, lower alkenyl or lower alkynyl group. Preparations of starting materials for the above processes and of their precursors are described and exemplified. The compounds of the invention are pesticides.
Patent GB-1131714-A (GB)
Title: Bearings
Inventor: STOTT DONALD
IPC: F16C32/06
Filed: 1965-05-06
Abstract: 1,131,714. Bearings. JOSEPH LUCAS (INDUSTRIES) Ltd. 14 July, 1966 [6 May; 1965], No. 19112/65. Heading F2A. A fluid journal, bearing comprises a first opening, 17 extending only in itsloaded side, whichopening is supplied with pressurized lubricant and is symmetrical about a first plane containing the axis of the. bearing, a second opening 19 through which fluid escapes being provided near a second plane perpendicular to the first plane. In Figs. 2 and 3. a rectangular groove 17 with two axial, sides is supplied with lubricant by bore 18. Axial grooves 19 allow escape of lubricant, and prevent pressurized lubricant reaching the unloaded side. of the bearing. Rectangular groove 17 may be replaced by straight groove(s).
Patent GB-466447-A (GB)
Title: Improvements in or relating to elastic fabric and method of making same
IPC: D06C23/00
Filed: 1936-07-10
Abstract: 466,447. Elastic fabrics. INTERNATIONAL LATEX PROCESSES, Ltd. July 10, 1936, No. 19131. Convention date, Oct. 30, 1935. [Class 140] Knitted, woven, lace or other fabric with increased range of stretch is made by subjecting the fabric treated with a wetting liquid to sliding pressure upon a supporting surface so as to crowd the threads and applying rubber so as normally to retain the threads in that condition. The fabric may be condensed in the direction of the length, transversely, or at various angles so as to produce design effects, and the increased stretch may be imparted to the whole or to selected portions. A knitted fabric may be treated to obtain different amounts of stretch longitudinally and transversely. The rubber may be applied so as to form a porous or a waterproof coating. The rubber may be applied as latex or other aqueous dispersion with or without compounding and vulcanizing ingredients or in any stage of vulcanization, or a solvent rubber may be used. The rubber may be applied before or after crowding the fabrics. The rubber may be applied to one face of the fabric only, and two such sheets may be united with the coated faces together. As shown in Fig. 1, a knitted fabric 10 wetted with water or paste, glue or other adhesive, is crowded forwardly and laterally by a handoperated pusher 14 to form a zig-zag pattern while resting upon a smooth supporting surface 13 of steel, phenol formaldehyde resin, or oilcloth on wood, and the rubbery liquid is sprayed upon the crowded fabric from nozzles 16. The treated fabric may be vulcanized while on the support. As shown in Fig. 2, the fabric passes continuously through water in a tank 19 to a conveyer tank 22. Excess water is removed by rolls 27 and the fabric is crowded by an upper roll 26 running at higher speed than the conveyer band and a lower roll 25. The crowded fabric passes beneath sprayers 28 and through a drying and vulcanizing chamber 29. The roller 26 may be moved axially to and fro at any desired speed by mechanism, Fig. 3 (not shown), which includes a variable-speed grooved cam. The two rollers may be driven independently and their relative speeds may be varied. The upper roller may be embossed so as to engage only part of the fabric. Specification 448,669 is referred to.
Patent GB-425402-A (GB)
Title: Improvements in brake mechanism
IPC: F16D51/22
Filed: 1933-07-07
Abstract: 425,402. Internal expanding brakes. PLATT BROS. & CO., Ltd., Hartford Works, Oldham, and RICHFORD, H., 171B, St. Mary's Road, Moston, Manchester. July 7, 1933, No. 19244. [Class 103 (i)] An internal expanding brake is operated by a cone 22 turned and forced between oblique faces on the brake shoes by a screw 23 the axis of which is parallel to the axis of the brake drum and slots on the shoes engage fixed pins 35 to prevent lateral movement of the shoes by the operating cone. The oblique faces are formed on blocks attached to the shoes by screws. The handle 26 operating the screw 23 is arranged to engage a bush 24 before the cone 22 can engage the brake drum. The brake is formed in a pulley 1 mounted in a frame 9. Specification 223,354, [Class 103 (i)], is referred to.
Patent GB-193156-A (GB)
Abstract: 193,156. Avery, Ltd., W. & T., and Sykes, C. M. Nov. 19, 1921. Indicating-mechanism; pendulum-weight apparatus.- In an automatic weight indicating mechanism of the kind in which a drum indicator is mounted upon a vertical spindle, the weight of the indicating mechanism is taken off the bearing of the spindle by means of a float mounted on the spindle. The spindle 30 of the drum indicator 36 is mounted in bearings 32, 33 and carries a float 35 situated in an oil &c. vessel 34. Paddles on the float damp vibration. The load is transmitted by a draw rod 4 and three flexible hands 4<a> to two pendulum levers 7, 8 one of which rotates the drum indicator by means of flexible bands 25, 28. A member 21 with flexible bands 26, 31 serves to return the drum to zero. If the level of the apparatus is altered the pendulums 7, 8 move in the same direction and their combined influence leaves the zern point of the indi. cator undisturbed.
Patent GB-520220-A (GB)
Title: Improvements in or relating to interchangeable pattern carriers for jacquard cards particularly for knitting machines
IPC: D03C15/04
Filed: 1939-07-03
Abstract: 520,220. Pattern cards. DUBIED & CIE. SOC. ANON.. E. July 3, 1939, No. 19348. Convention date, July 5, 1938. [Class 74 (ii)] [Also in Group IX] A removable device for covering holes in jacquard cards consists of a face plate b integral with a springy depending piece c the grooved parts e, f of which register with the edges of a hole. The plate b may be wide enough to cover several holes and may be provided with two pieces located side by side.
Patent GB-985886-A (GB)
Title: Fused cast alumina-silica refractory
IPC: C04B35/107
Filed: 1963-05-15
Abstract: A fused cast alumina-silica composition which consists of 0.2-1.7% SiO2 and the remainder Al2O3 (by weight) is claimed per se. The total impurity content does not exceed 1% and includes not more than 0.1% iron and titanium oxides and not more than 0.6% alkali metal, particularly Na, Oxide. Bayer process alumina containing 99.2% Al2O3 and silica sand containing 99.4% SiO2 are charged into a furnace, preferably premixed, and melted, and the melt is cast and cooled.  A refractory composition exemplified contained 0.2% SiO2, 0.16% Fe2O3, 0.4% other impurities and 99.24% Al2O3.  Specification 265,847 is referred to.
Patent GB-726750-A (GB)
Title: A device for facilitating the movement of vehicles over soft ground
IPC: H01H13/36
Filed: 1953-07-13
Abstract: 726,750. Vehicle wheels. ALLARD, P. J. M. T. July 13, 1953 [July 28, 1952], No. 19389/53. Class 144 (1). A tractor or like wheel attachment for soft ground use comprises a plate 7 securable to the wheel 4 and detachably supporting at its periphery a continuous or non-continuous circular cage-like structure of elements 12 each formed of two arcuate plates 13 connected by transverse struts 14, the elements 12 being interconnectable, and the cage diameter being slightly less than the wheel tyre diameter. As shown the element plates 13 are cranked towards each other at one end 15 to be received between the uncranked plate ends 16 of an adjacent element 12, adjacent elements being secured to each other and to the plate 7 by bolts 18 or pins. Each element 12 may have a locating spike 17a to locate in a hole in the plate 7. To increase the tractive grip a plurality of continuous parallel cages may be secured together and the struts 14 may have outwardly facing sharp edges or the elements 12 may be spanned by a network of sharp edged or toothed bars. Alternatively, a series of parallel discontinuous cages may be made up by connecting the elements 12 as shown in Fig. 4, the outer cage having a reinforcing ring 21 secured thereto.
Patent GB-1176138-A (GB)
Title: Improvements in Sterilisation of Materials
Inventor: BILBROUGH JACK
IPC: A61L2/12
Filed: 1966-05-03
Abstract: 1,176,138. Microwave sterilizers. MICROWAVE INSTRUMENTS Ltd. 13 July, 1967 [3 May, 1966], No. 19426/66. Heading A5G. [Also in Divisions A2 and H5] A device for sterilizing materials by microwave energy comprises a cavity 6 into which microwave energy is injected, having short, tunnel-like entry and exit regions 12 which each contain a closure barrier formed by a series of dependent, displaceable chains 18 which reach to the surface of the conveyor 2 and serve to prevent or limit the escape of microwave energy. Preferably, the chains are of such a length as to be resonant with the microwave frequencies employed. The chains may be replaced by pivoted,. rigid rods or wires.
Patent GB-586070-A (GB)
Title: Improvements in or relating to containers made from blanks of paper or like sheet material
IPC: B65D5/06
Filed: 1944-10-10
Abstract: 586,070. Containers made from blanks of paper and like sheet material. WHEELER, J. W. Oct. 10, 1944, No. 19472. [Classes 18 and 94 (ii)] A container formed by folding a blank of paper or like sheet material is closed by bringing the two opposite side portions together to form a tapered closure having sloping sides. The intervening side portions, of triangular formation, lie flush with the edges of the sloping sides and the excess material F of each of the wall portions is formed of such a length that when the mouth of the container is closed it extends throughout the length of the mouth so that it interleaves completely, forming a continuous and equal number of layers along the length of the closed mouth, Fig. 3. Sealing tabs 9 and H are formed. on the side portions so that when the mouth is closed they are bent over and secured with a staple.
Patent GB-1040492-A (GB)
Title: Method of producing pattern-cut bent glass sheets
IPC: C03B23/027
Filed: 1964-05-12
Abstract: In the production of pattern-cut bent glass sheets the cut bent sheet is supported upon a shaped ring-type mould of a smaller size but of substantially similar outline, re-heated and then cooled whilst contact is maintained between the mould surfaces and a portion of the sheet spaced inwardly of its edge such that on cooling the marginal edge portions of the sheet are placed in compression.  Initially a block-size sheet is bent in a conventional manner such that an area of the sheet, having an outline equivalent to that of the cut sheet, is placed in compression, so that on cooling the bent sheet may be cut, the cut being made through the centre of the compression zone. The pattern-cut bent sheet is then placed on the ring mould surfaces 53 (Figs. 4 and 5, not shown) and placed in a furnace for reheating. The edges of the sheet 54 overhang the mould such that on cooling an area of compression d is formed.  The sheets are reheated to a temperature above 940 DEG  F. (500 DEG  C.) to relieve all stress therein but not sufficient to cause further bending.  A predetermined gradient of tension may be created in the area of the sheet within the support surfaces 53 by using different thicknesses 56, 57, 58 of a perforated shield which extend between surfaces 53 below the glass, thus giving rise to different rates of cooling.
Patent GB-625622-A (GB)
Title: Improved locking device for shotgun
IPC: G09B17/00
Filed: 1947-07-22
Abstract: 625,622. Sporting guns. MARTIN, E. July 22, 1947, No. 19665. Convention date, Aug. 16, 1946. [Class 119] The bolt 5 for engaging the lumps 2 on the barrels 1 of a sporting gun is urged forwardly by two symmetrical forces, the first at 13a resulting from the direct action of the spring 12 and the second from the action of the other end of the spring on a movable member such as a pivoted lever 8. This lever passes through an elongated aperture in the bolt and is fitted to a shaft 9 carrying a hand lever 6. A certain play a, b is allowed between the end 8b of lever 8 and the bolt, thus ensuring that wedge surfaces 5a, 5b of the bolt are applied perfectly to similar surfaces on the lumps, and that there is a good bearing of the lumps against a bearing block 7. The latter may be readily removed and replaced.
Patent GB-834822-A (GB)
Title: Sealing polyethylene to other organic resins
IPC: C08J5/12
Filed: 1956-06-26
Abstract: A sheet having a polyethylene surface is coated with a solution of a polyalkylenimine (see Group VIII) by passing the sheet under a wick, which may be mounted for movement into and out of contact with the sheet, synchronized with the movement thereof to moisten only designated portions of the sheet.
Patent GB-1137489-A (GB)
Title: Dental hand instrument
IPC: A61C3/08
Filed: 1965-05-11
Abstract: 1,137,489. Dental instruments. R. M. YARDLEY. 5 May, 1966 [11 May, 1965], No. 19758/65. Heading A5R. A dental instrument for stopping teeth comprises a handle 7 at each end of which are swan-neck shanks having portions 9, 10 each of which is inclined to the handle axis and is formed with a disc 11, 12 at its working end. One disc 11 lies in a plane parallel to the handle axis, the other disc 12 being inclined to the axis. The discs are square-edged and the shanks are tapering and rectangular or otherwise oblong in cross-section.
Patent GB-708415-A (GB)
Title: Improvements in or relating to brake casings for cycle or motor-cycle brake hubs
IPC: B62L5/04
Filed: 1952-08-06
Abstract: 708,415. Coaster hubs. FICHTEL & SACHS AKT.-GES. Aug. 6, 1952 [Jan. 16, 1952], No. 19781/52. Class 136(2) In a brake casing 9 for cycle or motor-cycle brake-hubs of the free-wheel back-pedalling type having a coupling sleeve 3 for driving the hub 7 during forward travel and for operating the brake upon back-pedalling, the casing 9 consists of two halves 9a, 9b enclosed by a spring 10, the longitudinal edges 11, 12 of the parts contacting one another along about onethird of their length and the spring 10 being so arranged that the parts 9a, 9b carry out a tilting movement about transverse edges 13, 14 so that the end portions 15, 16 of the parts 9a, 9b bear on the coupling sleeve 3. The spacing of the longitudinal edges 11a, 12a is produced by grinding.
Patent GB-1033002-A (GB)
IPC: H02K3/24
Filed: 1963-05-17
Abstract: 1,033,002. Dynamo-electric machine winding conductors. SOC. GENERALE DE CONSTRUCTIONS ELECTRIQUES ET MECANIQUES (ALSTHOM). May 17, 1963 [May 18, 1962], No. 19786/63. Addition to 892,859. Heading H2A. In an improvement or modification of the dynamoelectric machine winding bar defined by claim 1 of Specification 892,859, the bar is constituted by two radially extending ranks of cooling tubes 2 extending side-byside with the tubes in one tank periodically transposed with those of the other at intervals along the bar length, and two radially extending ranks of solid conductors 1 disposed respectively on opposite outer sides of the two ranks of tubes, with the conductors in one rank periodically transposed with those of the other at intervals along the bar length. The bar may be used in the stator winding of an alternator, and the copper conductors 1 may be mutually insulated by mica tape or bonded asbestos, whilst the third cooling tubes 2 may be of either copper in which ease they also carry part of the winding current, or non- magnetic high sensitivity material.
Patent GB-1185377-A (GB)
Title: Semi-Conductor Dosimeter
IPC: G01T3/08
Filed: 1967-04-28
Abstract: 1,185,377. Detecting neutrons. BATTELLE DEVELOPMENT CORP. 28 April, 1967 [13 June, 1966], No. 19801/67. Heading G6P. In a fast-neutron semi-conductor dosimeter, the decrease in charge-carrier lifetime, induced by the neutron irradiation, is monitored by a photo-voltaic effect. Lithium diffusion P-N junctions mau be employed with P-type silicon. A decrease in the short-circuit photo-current is caused by the fall in diffusion length consequent upon neutron irradiation. The dosimeter 10, having side contacts 16, 18 fixed to a P-type base material is held in arms 25, of holder 22. Electrodes 26 connect 16, 18 with ammeter A. Light source 30 directs a beam on to the surface 28. The dosimeter may be mounted in the fuel plate of a water-moderated and cooled reactor.
Patent GB-498862-A (GB)
Title: Improvements in combination spanners
IPC: B25B15/02
Filed: 1937-07-17
Abstract: 498,862. Wrenches ; screwdrivers. FORD, R. C. July 17, 1937, No. 19832. [Class 61 (iii)] A combination wrench and screwdriver comprises a magazine box spanner 11 with nut retaining spring catch 12 at the forward end and nut socket 17 of different size at the rear end on a part 14 formed with a non-circular axial hole to receive a correspondingly shaped tommy bar 15 formed with a screwdriver 20 at one end and a nut ring 21 or open jaw at the other end, a second box spanner part with nut socket 18 fitting in the main part 11 and provided with a shoulder to engage the end of the main part. The stem 19 of the second part is adapted as another box spanner. Transverse holes 16 are provided in the spanner 11 to receive the tommy bar. Specification 481,231 is referred to.
Patent GB-1199237-A (GB)
Title: Improvements relating to Difficultly Water-Soluble Azo Dyestuffs which can be used as Dispersion Dyestuffs, and their use
IPC: C09B43/20
Filed: 1968-04-26
Abstract: 1,199,237. Aminopyrimidine. J. R. GEIGY A.G. 26 April, 1968 [27 April, 1967], No. 19863/68. Addition to 1,109,628. Heading C2C. [Also in Division C4] Examples 12 and 68-70 describe the reaction of 2,4,6-trichloro-pyrimidine with (a) aniline, the reaction mixture being fractionally crystallized to obtain 2-phenylamino-4,6-dichloropyrimidine and 4-phenylamino-2,6-dichloropyrimidine which are subsequently reacted with ethylamine to give 2-phenylamino- 4 - ethylamino - 6 - chloropyrimidine and 2 - ethylamino - 4 - phenylamino 6 - chloropyrimidine, and (b) 2-amino-ethanol to form 2-(#-hydroxyethylamino)-4,6-dichloropyrimidine which is then reacted with aniline to give 2-(#-hydroxyethylamino) - 4 - phenylamino - 6 - chloropyrimidine.
Patent GB-629533-A (GB)
Title: Improvements in hyperchromatic lens system, especially for sighting purposes
IPC: G02B3/00
Filed: 1946-07-03
Abstract: 629,533. Optical systems. SVENSKA ACKUMULATOR AKTIEBOLAGET JUNGNER. July 3, 1946, No. 19883. Convention date, May 20. Drawings to Specification. [Class 97 (i)] A hyperchromatic lens system of the type described in Specification 591,794, particularly for use in sighting firearms is composed of two or more lenses in contact, each having the same refractive index for a certain wavelength, preferably yellow, but different dispersive powers so that the system is afocal for that wavelength and has a focal length of about 80 cms. for a shorter wavelength. Data are given for one example of a cemented doublet having plane or substantially plane faces.
Patent GB-404352-A (GB)
Title: Improvements in or relating to the production of non-splintering glass plates
IPC: C08L1/00
Filed: 1932-07-14
Abstract: 404,352. Compound glass. MEYER, F., 12, Joachim-Friedrichstrasse, Halensee, Berlin. July 14, 1932, No. 19978. [Class 140.] A reinforcing material for compound glass comprises a polymerized resin-like substance such as polymerized vinyl acetate and a cellulose derivative such as celluloid or cellulose acetate, in which the cellulose derivative constitutes less than 50 per cent of the composition and preferably less than 10 per cent of the amount of the resin-like substance. The materials may be melted together or dissolved in a common solvent such as cyclohexanone or methylcyclohexanone, or they may be separately dissolved and the solutions mixed. Suitable solvents for the resinous substances are butyl stearate, dicresyl phosphate, dibutyl phthalate, glycol, glycerine and castor oil, to which diluents such as high boiling point hydrocarbons may be added. Alternatively the materials may be applied to the glass as alternate coats, the layers of the resin-like substance being thicker than the cellulose derivative layers.