baber/WOPTO huggingface dataset:
Patent GB-300644-A (GB)
Title: Improvements in variable speed gears
IPC: F16H3/08
Filed: 1928-11-07
Abstract: 300.644. Krupp Akt.-Ges., F. Nov. 18, 1927, [Convention date]. Variable-speed gearing suitable for vehicles has a single friction clutch such as D, E, G in each train operable while running. Of parallel driving, intermediate, and driven shafts B, F, H of the change gear proper, the shaft F is constantly driven by a pair of keyed wheels b<8>, f<1>. The, shaft H is driven from shaft F at two speeds by engaging clutch G to bring in pair g<2>, h', or clutch E to bring in pair e<3>, h<2>. According to the invention, a third speed is brought in through train d<2>, e<2>, e<3>, h<2> by engaging clutch D. This is possible by sleeve e<1> being loose on the steadily turning shaft F. A modification is described in which a fourth speed is obtained through a train similar to d<2> - - h<2> and another clutch on the other end of shaft B. A modification of a three-speed gear like that shown is described in which the last shaft J is driven from shaft H through a two-speed clutch gear so as to yield six speeds in all. In all the forms described, the first parallel shaft B is driven from an engine shaft. A, Fig. 1, through a bevel reversing-gear operated by a sliding dog clutch sleeve b<4>, Fig. 2.
Patent GB-1186756-A (GB)
Title: Process for Exothermic Addition Reactions
IPC: C07C239/00
Filed: 1967-07-14
Abstract: 1,186,756. Making solid organic adducts. FMC CORP. 14 July, 1967 [18 July, 1966; 10 Feb., 1967], No. 32509/67. Heading B1X. [Also in Division C2] A solid addition product of at least two organic reactants is made by an exothermic reaction carried out in the absence of diluents other than product by a batch or continuous process wherein the reactants are fed into a zone of intense agitation, preferably containing comminuted reaction product, the reaction being carried out under agitation sufficiently intense to keep the product finely divided, and the temperature being maintained below the melting point of the reaction product. Preferably no more than 10 wt % of the reaction mass at any time is unconverted reactants. The reaction vessel and the blades of the agitating device may be cooled. The reactants may be liquid or solid; one may be gaseous. Reactions include the addition of aromatic amines to diketene to give acetoacetaryl amides and the addition of phenols or alcohols to isocyanates to give carbamates.
Patent GB-1480020-A (GB)
Title: Catalytic reduction of nitrogen oxides in waste gas
IPC: B01J23/85
Filed: 1975-08-04
Abstract: 1480020 NO x -reduction catalyst JAPAN GASOLINE CO Ltd 4 Aug 1975 [6 Aug 1974] 32545/75 Heading B1E [Also in Division Cl] A NO x -reduction catalyst comprises a salt of a heteropolyacid with one or more metals of the first transition series supported on a carrier, the catalyst containing at least 0.5% wt of the salt. The salt may be a Cu, Ti, V, Cr, Mn, Fe, Co or Ni salt of silicotungstic, silicomolybdic, phosphotungstic or phosphomolybdic acid. The carrier may be alumina, silica, e.g. kieselguhr or silica-alumina and suitably has a specific surface of not less than 50 m<SP>2</SP>/g and a pore volume of 0.2-1.5 a/g. The catalyst may further contain one or more oxides of the metals of the first transition series. It may be formed by impregnation followed by calcination..
Patent GB-929820-A (GB)
Title: Container opener
IPC: B67B7/72
Filed: 1961-09-11
Abstract: 929,820. Can Openers. R. C. E. CAPRONI. Sept. 11, 1961, No. 32582/61. Class 66. A can opener comprises an arcuate frame 30 and a rotatable handle 45, which is connected by means of a nut held within a housing 32 to a shank 41 and a cutter 55 in such a way that on rotation of the handle the cutter 55 is moved towards or away from the can. Rollers 50, 52 and 60 (not shown) are attached to the frame and are provided with grooves which engage a ridge 22 encircling the can so that the cutter 55 is guided over the surface of the can when the can and frame are rotated relative to each other.
Patent GB-921724-A (GB)
Title: Photographically produced stencils and semi-conductor devices
IPC: H01L21/00
Filed: 1960-09-22
Abstract: 921,724. Photographically produced stencils and semi-conductor devices. SIEMENS & HALSKE A. G. Sept. 22, 1960 [Sept. 22, 1959], No. 32592/60. Class 98 (2). [Also in Group XXXVI] A stencil with at least one aperture of small dimension is made by coating the surface of a body of material with a photo-sensitive substance, projecting thereon through a convergent optical system an image of a mask of appropriate aperture, removing unexposed portions of the substance, depositing a layer of metal on to the portions of the body from which the substance has been removed and peeling off the deposited metal to provide the stencil. Parts of the body surface underlying these unexposed portions may also be removed; thus as shown exposure is effected through mask 3 with apertures 16, 17 and lens 2 on to photo-sensitive layer 20 on a molybdenum support 4 which latter is etched with dilute sulphuric acid after removal of unexposed photo-sensitive substance to leave the appearance of Fig. 2 with support portions 5, 6 above the remaining surface still carrying the portions 20. After this a nickel coating is deposited to form the stencil 7 with apertures 8, 9 shown partly peeled away in Fig. 3. Fig. 4 shows a mesa transistor (see Group XXXVI) made by vapour deposition of electrodes 14, 15 through the stencil 7.
Patent GB-642258-A (GB)
Title: Improvements relating to moulding compositions containing amino-resins
Inventor: HERZBERG FRANZ MORITZ
IPC: C08J3/21
Filed: 1947-12-12
Abstract: In a process for producing a moulding powder, powdered regenerated cellulose is treated with formaldehyde in acid aqueous medium, dried, and mixed with a solution of a urea-aldehyde condensation product to form a dough which is then dried and ground to form the moulding powder.  In examples, 100 gs. ground regenerated cellulose film is saturated with 20 per cent formalin containing a small amount of acid as catalyst, dried by heating at 65 DEG  C., washed to remove acid and dried again.  It is then mixed into a dough with 200 gs. 50 per cent solution of urea-formaldehyde resin, dried, ground, and moulded at 145-150 DEG  C., giving translucent mouldings.
Patent GB-633986-A (GB)
Title: Improved method of making rotors for electric motors
IPC: H02K15/00
Filed: 1947-12-11
Abstract: 633,986. Coating composite articles. BOIS SEAU (nee GUIGNOT), S. A., and MOUSSET (nee BOISSEAU), J. S. Dec. 11, 1947, No 32716. Convention date, June 25, 1941 [Class 83 (i)] Moulds.-In a method of casting conductor bars and end rings on to the laminated rotor body of an electric motor, the body is disposed horizontally in a mould which has pouring passages above one end ring cavity and outlet passages above the other end ring cavity, the mould is preheated to a temperature slightly below the melting point of the metal to be cast and metal is poured into one end ring cavity, progressively filling the conductor bar slots and finally filling the other end ring cavity and rising in the outlet passages. The method is intended more particularly for the casting of aluminium bars and rings. The mould comprises a base portion built up of four parts 2, 3, 4 and 5 of steel or other metal on which the rotor body 1 is placed and then covered by the mould upper parts 6, 7, 8 and 9 of similar material. Intermediate parts of different size may be selected according to the length of the rotor. Sockets 16 and 17 surround the rotor spindle and close the end openings of the mould. The mould parts 8 and 9 each contains a number of vertical inlet and outlet passages 13, 12 respectively, which communicate with the end ring cavities 18 of the mould and upon half the periphery thereof. Before, pouring, the mould and rotor are preheated by any known heating means beneath the mould, and they are maintained at that temperature during the casting operation.
Patent GB-756844-A (GB)
Title: Aqueous dispersions having a base of aromatic tar or pitch
IPC: C08L95/00
Filed: 1952-12-24
Abstract: Coating compositions comprising an aqueous dispersion of aromatic tar or pitch and a water-dispersible clay-like material are stabilized by the addition of at least 0.5 per cent, preferably 1-4 per cent of a polycyclic solid hydrocarbon or heterocyclic having at most three rings.  Such substances are naphthalene, anthracene, phenanthrene, and carbazole, including crude products containing these.  The clay-like substance is preferably kaolin containing not more than 10 per cent of quartz, but lower grade clays may also be used and also finely divided meltable substances, e.g. flue dust, roasted pyrites, lime and acetylene sludges &c.  The bituminous constituent may be coal tar, coke oven tar, gas oil tar, water gas tar &c. or pitch made from any of these, or a hard pitch fluxed with oil, or "washing oil pitch" obtained from the oil used for scrubbing coke oven gas.
Patent GB-1522069-A (GB)
Title: Cleaning devices
IPC: B05C21/00
Filed: 1976-08-06
Abstract: 1522069 Apparatus for cleaning a masking screen OFFICINA MECCANICA ETTORE NASSETTI SAS DI ROBERTO NASSETTI and C 6 Aug 1976 [1 Oct 1975 27 April 1976] 32871/76 Heading B2L [Also in Division B6]  A device for cleaning a masking screen, e.g. in a ceramic tile decorating machine, has a motor M 1  and reducing gear R 1  driving an output shaft carrying a cam C, which controls through a first linkage the lifting of a screen-carrying frame T, the shaft also carrying a connecting rod controlling through a further linkage a support carrying cleaning means s for cleaning the screen, the further linkage serving to bring the means s from an inoperative position into an operative cleaning position where it cleans the raised screen. Cam C 1  tips lever l 1  about fulcrum p', whereby the frame T is tilted to the Fig. 4 position about fulcrum p by lever A 1 . The lever A 2  co-acts with linkage b 1  to pivot the brush carrying arrangement through 45‹ about axis a so that the brush rotated by motor M 3  via band P, cleans and contacts the screen. In an alternative embodiment, the dry brush is replaced by a wettable rotatable sponge which is wetted and squeegeed at the inoperative position.
Patent GB-1212329-A (GB)
Title: Method of manufacturing lamps
Inventor: BONAZOLI ROBERT P
IPC: H01J5/32
Filed: 1969-06-30
Abstract: 1,212,329. Tubular lamps. SYLVANIA ELECTRIC PRODUCTS Inc. 30 June, 1969 [28 June, 1968], No 32995/69. Heading B1F. A method of manufacturing a tipless lamp comprises the steps of inserting a filament assembly 4 into a tube having a length greater than the predetermined required length of the lamp envelope, the filament being provided with a crossbar 3 at one end engaging one end wall of the tube so that when tension is applied to the other end of the filament it is stretched axially within the tube, sealing the other end 10 of the tube remote from the crossbar, connecting the. open unsealed end of the tube to. a vacuum head, exhausting and filling the tube through the head, press sealing the tube at a short distance from its. open end and severing the extra length of tube 17 outside the seal 15. A thin groove 16 may be provided to simplify this last operation.. End caps are then fitted to the envelope and the crossbar 3 and surplus wire is cut off. The filament is of coiled tungsten wire supported by spacers 11, and the envelope may be filled with nitrogen, argon, bromine or iodine.
Patent GB-621906-A (GB)
Title: Improvements in or relating to apparatus for the high frequency heating of dielectric material
IPC: H05B6/50
Filed: 1946-11-08
Abstract: 621,906. Automatic control systems. IGRANIC ELECTRIC CO., Ltd. Nov. 8, 1946, No. 33249. Convention date, Nov. 10, 1945. [Class 38 (iv)] The output of a high-frequency valve oscillator used for heating dielectric material is kept constant by utilizing variations in the direct'plate current to set up a movement of one of the heating electrodes so as to restore the direct current to normal. The heating electrodes 20, 21 are connected across a coil 16 connected to the grids of a push-pull valve pair 8, 9, the plates of the valves being connected to a tuned plate circuit 10. A resistor 13 in the cathode lead is traversed by the plate current, and the voltage across the resistor operates a solenoid 36. A similar solenoid 35 is operated by current from a source 40 through a pre-set rheostat 42. The two solenoids normally balance in their effect on a switch 27, but if the plate current rises or falls, the switch moves to one side or the other to start up a reversible motor 24 to drive the electrode 20 up or down through screw-and-nut or other mechanism. The operation depends on the fact that the direct plate current is proportional to the power dissipated in the treated article 20 in the form of heat. The relay switch 27 may be replaced by a valve circuit relay as described in Specification 637,012.
Patent GB-476080-A (GB)
Title: Improvements in or relating to machines for sewing on buttons
IPC: D05B3/14
Filed: 1936-02-24
Abstract: 476,080. Sewing-machines. JACKSON, L. MELLERSH-. (International Button Hole Sewing Machine Co.) Feb. 24, 1936, No. 33335. Divided out of 476,039. Drawings to Specification. [Class 112] The Specification describes the machine for sewing buttons on to work forming the subject of Specification 476,039, and claims a sewing- machine, particularly for attaching buttons, including elements having a cycle of operations to form a group of stitches, including a controlling element having a fixed range of movement during the cycle and means for varying the number of stitches in the group formed during this movement. Specifications 476,079, 476,081, and 476,082 also are referred to.
Patent GB-465716-A (GB)
Title: Bath or cleaning sponge
IPC: A47K7/02
Filed: 1936-12-07
Abstract: 465,716. Pads. KOHN, F. Dec. 7, 1936, No. 33508. [Class 19] [Also in Group XIV] A sponge for personal use or a cleaning pad is made by enclosing a number of small pieces of sponge in a pervious casing enclosed in an outer casing which is easily exchangeable, being closed by a draw-tape, sliding-clasp fastener or the like, as distinguished from sewing. Fig. 1 shows an arrangement in which a number of pieces of sponge 1 are enclosed in a perforated paper or like casing 2 in an outer casing 3 of towelling. The opening of the casing 3 is closed by a draw-string and protected by an inner flap 6. A loop 4 is provided for withdrawing the inner casing and a loop 7 for holding the article. An extra lining may be provided in places so that water enters and leaves less freely there ; Fig. 5 shows a flat flannel-like arrangement with such linings 13 at the ends and a cleaning cloth 14 attached to one edge.
Patent GB-919369-A (GB)
Title: Improvements in or relating to apparatus for reproducing sound from disc recordings
Inventor: HADDY ARTHUR CHARLES
IPC: G11B3/58
Filed: 1960-09-30
Abstract: 919,369. Cleaning gramophone pick-up styli. DECCA Ltd. Dec. 14, 1961 [Sept. 30, 1960], No. 33665/60. Class 40 (2). A brush 20, rotated by a hand wheel 32 or by mechanism associated with the lowering of the pick-up arm on to a rest 15, brushes the resting stylus in a direction corresponding to that of a record groove during play. Damage to stylus mountings, particularly those of the type described in Specification 856,997, is prevented by a ratchet means 33.
Patent GB-823729-A (GB)
Title: A method of shaving gears
IPC: B23F21/28
Filed: 1956-11-05
Abstract: 823,729. Gear finishing. NATIONAL BROACH & MACHINE CO. Nov. 5, 1956 [Dec. 12, 1955], No. 33666/56. Class 83 (3). In a method of shaving a gear, a cutter having its most nearly aligned cutting edges disposed in helical paths 53 is fed relatively to the gear in a direction parallel to the common normal to their axes, while preventing relative motion between them in any direction transverse to the common normal, and while positively rotating the gear or cutter. The staggering of the edges avoids cutter marks. The cutter has unmodified teeth and is rotated to give a cutting speed of 250 ft./min. while being fed radially of the gear. Just prior to, or upon full depth being reached, the rotation is reversed. A crossed axis angle of 20-30 degrees is used. By providing opposite sides of the cutter teeth with different pressure angles, a correct gear is produced without the necessity of reversing rotation. Reasons are advanced in the Specification as to why the method does not produce an undesirable hollow lead modification, as would be expected theoretically. Moreover, it is stated that gears with a slight crown have been produced by the method. Internal or external gears can be shaved by external or internal cutters.
Patent GB-1277031-A (GB)
Title: Improvements in or relating to the feeding of bottle caps
Inventor: BROADHURST STANLEY FREDERICK
IPC: B67B3/064
Filed: 1968-07-15
Abstract: 1277031 Feeding crown corks VICKERS Ltd 15 July 1969 [15 July 1968] 33718/68 Heading B8S Bottle caps from a sorting wheel fall down shoots 3 and 4 into a storage space 6 and are delivered therefrom into an outlet 12 by an endless chain 9. Agitation of the caps is effected by the eccentric mounting of one sprocket of the chain 9 and their delivery is assisted by an air jet 16. Perforations 7 in space 6 permit observa tion of the caps.
Patent GB-1040977-A (GB)
Title: Jacketed drum of which the temperature can be controlled by liquid circulation
IPC: F26B13/18
Filed: 1965-08-06
Abstract: 1,040,977. Rollers; joint-making packing. AGFA-GAVAERT A.G. Aug. 6, 1965 [Aug. 13, 1964], No. 33838/65. Headings F2B and F2U. [Also in Division F4] A rotary drum drier having a drum jacket 19 and an inner cylinder 20 are connected together at each end in a liquid-tight manner to form a cylinder jacket to contain a heating liquid by means of a sealing ring 21 pressed into contact with the jacket 19 and cylinder 20 by a cylindrical extension 17b of a lateral disc 17 secured at its inner end to the shaft (not shown) of the drum. The lateral discs are adapted to position the jacket and cylinder on the drum and the extension 17b is seamed over and radiused to provide a seating surface for the seal. The rings are of rubber, e.g. silicone rubber, and of a round or triangular cross-section.
Patent GB-179219-A (GB)
Title: Improvements relating to fibre boards
IPC: D21J1/00
Filed: 1920-12-01
Abstract: 179,219. Shaw, J. K. Dec. 1, 1920. Boards; paper-machines. - Fibre boards are composed of different layers of fibres, the fibres in the layers being interlaced and the layers themselves being interlaced with the adjacent layers. The constituent fibres 60, Fig. 5, carry protuberances 100 of natural pith to act as an entangling agent. The boards are made in apparatus comprising a tank 1, Fig. 1, and travelling foraminous belts 13, 18. A mixture of water and fibre is introduced through a channel 35 and passes out into a chamber 38 between a false bottom 3 and the partition 39. The fibres, owing to the flow of the water, separate, travel parallel with each other and strike the belt 13 end on. The movement of the belt causes the fibres as they strike it to become curved, and succeeding fibres become entangled with them. Water and fibre are also introduced through a channel 45 and such fibre adheres in a similar manner to the belt 18. A third set of fibres introduced through a channel 40 into a central chamber 43, is caused to adhere to the fibres on the belts 13, 18 as they emerge through openings 70, 71 from the chambers 38, 48. In this way three layers of fibres, which may differ in kind, are formed and are compressed into a board as they emerge at 75 from between the belts. The heads of liquid in the channels 35, 40, 45 and the orifices 15, 29 through which the water escapes are adjusted to give the requisite flow through the apparatus and to minimize any flow from one of the chambers 38, 43, 48 to another. More than three channels may be employed giving more than three layers of fibres in the board. Bagasse, cane, bamboo, sorghum, or like fibres, treated so as to leave the natural pith on them as protuberances and beaten so as to give fibre bundles of differing sizes, are employed to the extent of at least 20 per cent of the material. When a, heat insulating material is required the board is only lightly compressed, but when more strongly compressed the boards may be used, as a substitute for lumber, in the manufacture of trunks, furniture, &c.
Patent GB-465398-A (GB)
Title: Improvements in or relating to trailer or like vehicles
IPC: B60G11/04
Filed: 1936-12-12
Abstract: 465,398. Vehicle spring-suspensions. STEEL WHEEL CORPORATION. Dec. 12, 1936, No. 34152. Convention date, Aug. 3. [Class 108 (ii)] In trailer or like vehicles a detachable wheel spring suspension comprises a bracket 12 adapted to be bolted to the side of the vehicle, a lever 14, 18 pivoted in said bracket and carrying at one end a wheel 16, the other end being shackled to a spring 46 which is mounted on the bracket 12. The bracket 12 is provided with a socket 40 having a cap 42 to house a pivot 56 having reduced ends which engage in aligned grooves 54 permitting limited vertical play. Rubber &c. blocks are positioned in the socket to resist rotation and vertical movement of the pivot 56 on which the lever is mounted. The lever comprises two portions 14, 18 to form a fork for the wheel and the spring 46 is clamped to the cap 42 being shackled to the other end of the lever 14 to resist angular movement. Fig. 9 shows an arrangement in which one bracket 112 serves to mount two levers 146 the wheels 116 of which extend fore and aft as shown.
Patent GB-1434551-A (GB)
Title: Electrically insulated conductors
IPC: H01B3/44
Filed: 1973-07-18
Abstract: 1434551 Insulated conductor UNION CARBIDE CANADA Ltd 18 July 1973 34242/73 Heading H1A [Also in Divisions B1-B2] An electrically insulated conductor comprises an electrical conductor having a release coating of at least one polymer of ethylene oxide comprising at least 50% by weight of ethylene oxide units and a layer of ethylene polymer insulation cross-linked on the coated conductor. The ethylene oxide polymer may contain up to 50% by weight of units -R-O- where R is a C 3  to C 6  hydrocarbon radical, e.g. propyl, butyl, pentyl or benzyl. The ethylene polymer may contain up to 25% of comononers such as vinyl acetate, ethyl acylate, butyl acrylate and methyl methacrylate. Cross-linking may be by an in situ agent, of which many are listed, or by electron beam radiation. The ethylene polymer layer may contain lubricants, e.g. fatty acids and their esters and semi-esters, mineral oils, and natural and synthetic waxes, e.g. 13- docosenamide. Fillers, antioxidants and pigments may be present.