baber/WOPTO huggingface dataset:
Patent GB-1523934-A (GB)
Title: Bags
IPC: B65D27/16
Filed: 1976-07-07
Abstract: 1523934 Plastics envelopes DECOFLEX Ltd 7 July 1976 [10 July 1975] 28210/76 Heading B8K  An envelope 1 comprises a pocket part having a surface capable of displaying information, a flap part 3 which is capable of being folded over the mouth of the pocket part, and an adhesive strip secured to the envelope and comprising a band of adhesive 4 and a covering barrier sheet 5 which is removable to permit the band 4 to secure the flap part to the pocket part when the former is folded on the latter to retain the bag closed. The surface capable of displaying information may comprise a label 6 fixed to the envelope, or an area of white ink coated on the envelope. The adhesive strip may be a strip of tissue impregnated or coated with adhesive, and the covering barrier sheet may be of paper or thermoplastics material and be wider than the adhesive band. The adhesive strip may be on the flap 3, as shown, or on the pocket part adjacent the envelope mouth. The envenlope may be of polythene.
Patent GB-658107-A (GB)
Title: Improvements relating to fireproofing compositions
IPC: D06M11/71
Filed: 1948-10-30
Abstract: 658,107. Fireproofing. MONSANTO CHEM. ICALS, Ltd. (Monsanto Chemical Co.). Oct. 30, 1948, No. 28235. [Class 140] A fireproofing composition comprises a mixture of diammonium phosphate, borax, and boric acid in such proportions that on applying an aqueous solution of the mixture to a surface and allowing it to dry the resulting coated surface is smooth to the touch. According to the proportions the mixture may be in one of two groups and contain 70-85 per cent or 1-58 per cent diammonium phosphate which may be supplied to the solution in the form of phosphoric acid and ammonia separately or as monoammonium phosphate, 11-21 per cent or 35-82 per cent borax, 4-9 per cent or 1-40 per cent boric acid to which a small quantity of silica may be added. The composition may be applied to cellulosic materials such as cotton or viscose rayon fibres, yarns, and fabrics including batting, cuprammonium rayon fabric, materials from living plants, e.g. decorative trees and foliage, and constructional materials such as wood or fibreboard.
Patent GB-200748-A (GB)
Title: Improvements in or relating to automatic optical projection apparatus
IPC: G03B23/10
Filed: 1922-10-18
Abstract: 200,748. Bullock, I. O. Oct. 18, 1922. Elements moving always in one plane, rotating; optical-projection apparatus; applications of. - In a projector of the type in which a circular slide-carrying disc is rotated intermittently to bring successive slides into projecting position by a striker operating a ratchet-wheel on the axis of the disc, the striker 9 is carried by an endless chain 1 and guides 10 are provided to direct it into engagement with the ratchet-wheel 11. The chain 1 is driven continuously through gearing from a motor, and the striker 9 before actuating the wheel 11 engages successively the portions a, b, Fig. 2, of a cam 18 keyed on a rock-shaft 17. The engagement with the portion a operates the shaft 17 to move a spring-controlled shutter 16 into position to cover the projection beam. The engagement with the portion b brings an arm 23 on the shaft 17 against a stud 26 on a rod 24 which is thus moved to release a roller 20 on a spring-controlled lever 21 from engagement with a notch 19 in the edge of the slide-carrying disc 13. The disc is thus released in readiness for its rotation through the ratchet-wheel 11. The engagement with the portion c of the cam causes a release of the lever 21, whereupon the roller 20 bears on the edge of the disc in readiness to engage the next notch 19. The roller 20 may also be released manually by providing a hand-lever 27 to operate the lever 21. The disc 13 is provided with apertures 42 in each of which a slide is removably mounted and retained by flanges 45, 46, Fig. 6, on stops 44, one edge of the slide bearing on a spring 47 serving to hold the opposite edge behind the flanges 46. To close the circuit of lamps around the apparatus or screen when the shutter 16 is operative, the rock-shaft 17 carries a collar of insulating material provided with a peripheral contact adapted to engage a spring- pressed brush contact when the shaft is rocked.
Patent GB-1437649-A (GB)
IPC: H01M10/42
Filed: 1974-06-26
Abstract: 1437649 Cell having anode material as suspension in electrolyte BATTELLE MEMORIAL INSTITUTE 26 June 1974 [28 June 1973] 28415/74 Heading H1B A cell 1 has an inlet 2 and outlet 3 for circulation of particulate zinc and/or aluminium anode material as a suspension in a KOH electrolyte, a pump 5 driving a proportion of the slurry in a closed circuit 4 including a filter 6. The cell cathode may comprise a metal oxide electrode but, as shown, comprises an air electrode. To increase the precipitation of zinc oxide (or aluminium oxide) from the spent fuel and thereby maintain the ion concentration below a certain level of saturation to improve the cell efficiency a proportion of the slurry flows through a circuit 7 including a tank 8 having electric heating means 9 and a filter 10. The tank 8 is heated to 80‹ C. and the precipitated ZnO is retained in filter 10. The electric heater 9 may be replaced or augmented by an ultrasonic-wave generator (Fig. 2, not shown).
Patent GB-1187094-A (GB)
Title: Method of Producing Propylene Oxide, Propyleneglycol and its Esters.
Inventor: BLJUMBERG ERNA ALBERTOVNA
IPC: C07D301/06
Filed: 1967-06-20
Abstract: 1,187,094. Propylene oxide, glycol and esters. INSTITUT KHIMICHESKOI FIZIKI AN U.S.S.R. 20 June, 1967, No. 28472/67. Heading C2C. In a method of producing propylene oxide, propylene glycol and its esters by oxidizing propylene with oxygen containing gas in an inert solvent at a temperature of at least 120‹ C. and a pressure of 50 to 100 atm. the oxidation is conducted in the presence of polytetrafluoroethylene and/or a fluorine containing salt of an alkaline earth or alkali metal as catalyst. Preferably a non-metallic reactor, e.g. of glass, porcelain or enamel is used. Fluorine containing salts specified for use as catalysts include K 2 SiF 6 , NaF and K 2 TaF 7 . A reactor having a coating of polytetrafluoroethylene may be used to provide the catalyst. Examples are furnished.
Patent GB-1531623-A (GB)
Title: Optical fibres
IPC: C03B37/00
Filed: 1976-07-09
Abstract: 1531623 Optical fibres QUARTZ & SILICE 9 July 1976 [11 July 1975] 28669/76 Heading C1M An optical fibre with a parabolic radial gradient of refractive index is made by locating a rod of a first glass within a sheath of a second glass, the glasses containing different ions capable of mutual interdiffusion and the first glass having a higher refractive index than the second, subjecting successive zones of the composite along its length to internal heating, to allow for ion diffusion, and drawing to fibre form. The internal heating may be by way of HF induction, dielectric loss or use of a hyper-frequency wave guide and the composite may be heated externally (e.g. by flame, graphite or metal heating ring or C0 2  laser) before internal heating. The fibres may be drawn off vertically downwards or horizontally and the diffusing ions may be Tl or Cs in the first glass and alkali metal ions in the second.
Patent GB-211534-A (GB)
Title: An improved annealing cover
IPC: C21D9/00
Filed: 1922-10-21
Abstract: 211,534. Shaw, W., and Shaw, H. A., (trading cas Shaw & Co., W.). Oct. 21, 1922. Annealing-boxes. -Open-bottomed annealing covers are made of steel cast in one piece. The cover b is formed with a domed roof d which is further strengthened by diagonallydisposed ribs e formed externally thereon. Longitudinal and transverse ribs g are provided on the internal surface of the cover, and additional strengthening projections are provided externally at the corners thereof. Lifting lugs h are also cast on the cover.
Patent GB-888755-A (GB)
Title: Improvements relating to push-button electric switches
IPC: H01H13/68
Filed: 1959-08-22
Abstract: 888,755. Switches held set and freed mechanically. JELSON ELECTRIC Ltd., and MOULSON, J. P. July 25, 1960 [Aug. 22, 1959], No. 28778/59. Class 38 (5). A push-button switch of the type having spring-loaded " on " and " off " buttons in which the ''on'' button is  latched when depressed, is arranged so that the " on " button normally positively holds contacts open, allowing them to close when it is depressed, while the " off " button not only releases the latch but also positively opens the contacts. " On " and " off " buttons 5 and 6 respectively are arranged between a cover plate 2 and insulating base 1, as shown, and are urged outwardly by springs 11 and 12 respectively. A bell-crank latch member having arms 23 and 24 is pivoted at 25 in brackets 27 depending from plate 2, and carries an insulating stud 29 to engage a transverse spring blade 21 carrying a contact 20 (Fig. 4). Blade 21 urges contact 20 towards a fixed contact 19 mounted on an arm 18 having a terminal tag 17. The blade 21 is provided with a corresponding terminal tag on the opposite side of the base 1. The latch arm 23 is forked to embrace the shank 8 of " off " button 6 and apertured to allow the shank 7 of " on " button 5 to pass freely therethrough. The latch arm 24 normally rests against the lower part 14 of the shank 7 (Fig. 2) and holds the blade 21 depressed so that contacts 19, 20 are maintained open. When button 5 is depressed the end of arm 24 moves on to the shoulder 16 of shank 7, thereby latching the button 5 (Fig. 3, not shown) and allowing blade 21 to rise, closing contacts 19 and 20 (Fig. 5, not shown). When the "off" button 6 is depressed its shoulder 28 engages the forked end of arm 23 to pivot arm 24 clear of shoulder 16, releasing button 5, while the stud 29 positively opens contacts 19 and 20.
Patent GB-675938-A (GB)
Title: Improvements in spring cushion constructions
Inventor: FLINT HYLAND CASE
IPC: A47C7/30
Filed: 1950-11-24
Abstract: 675,938. Spring upholstery. NO-SAG SPRING CO. Nov. 24, 1950. No. 28780/50. Class 52 (iv). Sinuous wire springs are secured to the frame 3 of a cushion by upwardly extending tabs with laterally extending ears 17 which engage a loop of the spring 1, lateral movement being prevented by a lug 19. The parts can be struck up from the metal of the frame or can be in the form of a separately applied clip and the ears may face inwards or outwards.
Patent GB-1399617-A (GB)
Title: Electrographic printer
IPC: B41J2/39
Filed: 1972-06-20
Abstract: 1399617 Control of printers ING C OLIVETTI & C SpA 20 June 1972 28880/72 Heading G4H [Also in Division B6] In a control circuitry for an electrostatic printer wherein four print heads each comprising 7 recording styli are reciprocated across a recording medium, recording taking place while the heads traverse in both directions (see also Division B6), print clock pulses from a positionindicating photo-electric pulsing assembly (Figs. 12-14, not shown) pass to a 7-bit shift register, the output of which comprises one space pulse, five recording pulses to form characters on a 5 Î 7 matrix and a shift pulse entering at 7 to enable AND gate 215 or 223 according to the direction of traverse of the print heads, indicated by a flip-flop 213 switched by end-of-line pulses. The shift pulse calls a character out of 32-bit shift registers 191, in groups of six to store characters in 6-bit code and forming a one-line buffer 173, the called-out character code being decoded and operating the recording styli.
Patent GB-1161617-A (GB)
Title: Improvements in Photographic or Kinematographic Lenses
IPC: G03B9/07
Filed: 1967-06-22
Abstract: 1,161,617. Camera diaphragms. JOS. SCHNEIDER & CO. OPTISCHE WERKE. June 22, 1967 [June 23, 1966], No.28891/67. Heading G2A. A lens having an automatic pre-selector diaphragm has means for optional manual operation of the diaphragm. A diaphragm pre-selector ring 1 has a plurality of grooves A6 for automatic pre-selection of aperture settings and an equal number of grooves M6 for manual setting of aperture settings. The ring 1 has internal shoulders 2', 2" positioned either side of a lug 4 on a diaphragm ring 3 which actuates the diaphragm leaves 16. For automatic pre-selection, ring 1 is rotated until a ball 7 engages the groove A6 corresponding to the desired aperture, the diaphragm being held open by a spring 11. On operation of a release button, the lug 4 is rotated to engage face 2', thus closing the diaphragm to the desired aperture. For manual pre-selection, ring 1 is rotated until ball 7 engages the grooves M6 corresponding to the desired aperture. When the ring is turned clockwise the ring 3 is carried round by the lug 4 and when the ring is turned counterclockwise the spring 12 acting on lever 10 causes the ring 3 to follow.
Patent GB-1409846-A (GB)
Title: Filling and sealing system
IPC: B65B43/12
Filed: 1973-06-18
Abstract: 1409846 Producing filled and sealed bags R J WEIKERT 18 June 1973 [23 June 1972] 28896/73 Headings B8C and B8K A method of filling and sealing bags comprises feeding on to a filling pipe 30 a continuous tube 10 having transverse seal lines 16 extending from the bottom 14 of the tube to a point spaced from the upper edge, the pipe being positioned between the top of the seal lines and the upper edge of the tube, filling through opening 34 in the tube the compartments 18 between the seal lines, sealing the top of the compartments as by means of a band sealer 58, and severing the tube between the band seal line and the upper edge of the tube to separate the tube from the pipe. Each seal line 16 comprises a pair of closely spaced lines joined at the top and separated by a serrated line so that the filled bags 64 automatically separate after a knife 62 has cut the top of the tube off. As the tube passes over the pipe 30 it rests on a conveyer 40 between two side conveyers (44) which control the volume of the bags. A scale weighing the filled separated bags adjusts the distance apart of the side conveyers (44). The conveyers and pipe 30 are inclined upwardly so that excess material in one compartment falls into the next one. The pipe 30 may comprise a plurality of pipes discharging either of the same point or at spaced points. One pipe may discharge a sterilizing gas, or an inert gas when packaging compounds which react with the atmosphere. The tube 10 may be formed by extrusion, or from a single web, or a pair of webs, and may be fed directly into the machine or be wound on a roll 26 first.
Patent GB-277195-A (GB)
Title: Improvements in and connected with emergency braking devices for road vehicles
IPC: B60T1/14
Filed: 1926-11-16
Abstract: 277,195. Gasson, T. Nov. 16, 1926. Skid; applied by springs.-In an emergency brake for a. vehicle of the kind comprising a skid plate 1 supported in proximity to the rim of the wheel 2 in such a way that, when released, it first engages the tread of the wheel and is then carried round into contact with the ground, the skidplate is mounted on a member 3 pivotally connected to the swinging arm 5 and a cable or chain 7 is attached at one end to the member 3 or arm 5 and at the other end to a lever 8 engaged by an operating pedal or lever 9, which, when moved in one direction, releases the emergency braking apparatus, and, when moved in the opposite direction, resets the apparatus. As shown, the pedal 9 is held in a normally depressed position with a surrounding spring 11 compressed by a catch 12, which can be moved aside by the driver's foot against the action of a centralizing spring 16 when the brake is to be applied and which automatically re-engages the pedal 9 when the latter is pushed down. If desired, the catch 12 may be connected by a cord 33, Fig. 3, to a number of control levers 35 so that the brake can be applied by the occupants of the vehicle. A spring plunger located in a casing 18 and bearing against the end 21 of a pivoted link 22 connected to the skid plate by a second link 23 accelerates the action of the brake. A supplementary brake, such as a hand brake 26, may be actuated simultaneously with the release of the skid plate.
Patent GB-677213-A (GB)
Title: Improvements in and relating to methods of brazing titanium
IPC: B23K35/38
Filed: 1950-11-27
Abstract: 677,213. Soldering and brazing. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 27, 1950 [Dec. 7, 1949], No. 28970/50. Class 83 (iv). A method of forming a brazed titanium joint comprises carrying out the brazing operation in an atmosphere of a noble gas such as argon or helium. In examples, two titanium strips were lapped and furnace brazed in dry argon at a temperature of 950‹ C. using (a) copper, and (b) 15 per cent manganese-silver as brazing materials. High-frequency induction heating may be employed.
Patent GB-655925-A (GB)
Title: An improved device for producing a combustible mixture of fuel and air for internal combustion engines
IPC: F02M7/10
Filed: 1948-12-17
Abstract: 655,925. Spray carburetters. MAZURKIEWICZ, A., POBOG-. Dec. 17, 1948, No. 29901. [Class 7(iii)] A plate 13 with apertures 14 is provided in a carburetter air intake to split up the air stream before mixing with the fuel sprayed through a jet 9 in a tube 6, and the area of each aperture is calculated by dividing the sum of the swept volume and the volume of the compression space of one cylinder by the product of the cylinder radius and stroke. The ratio of the diameter of the jet 9 to the diameter of a circle of area equal to the total area of the apertures 14 is in the range 1:19 to 1:24. A Venturi 15 is provided below the throttle valve.
Patent GB-1454893-A (GB)
Title: Fluid fuel heat generator
IPC: F41J9/08
Filed: 1960-08-22
Abstract: 1454893 Decoy missiles: burners McDONNELL AIRCRAFT CORP 22 Aug 1960 [20 Aug 1959] 29038/60 Headings F3A and F4T [Also in Division F1] A heat generator for use in a missile acting as a decoy for heat-seeking missiles comprises a housing 11 closed at one end by a heat radiating foraminous member 15. Air is admitted through a valve 22 into a chamber 19 whence it passes through openings 23 into a flame holder basket 20. The fuel is supplied to a nozzle 25 through a valve 28 and ignited by a spark plug 29, the hot gases passing through the member 15 and forming a boundary layer 34 of infra-red emission temperature. The member 15 may consist of sintered layers 32, 33 of metallic screen material. In a modification (Fig. 2, not shown) the member 15 is connected to the open end of the basket 20 by a conduit.
Patent GB-391164-A (GB)
Title: Improvements in or relating to fire extinguishing arrangements and apparatus therefor
IPC: A62C3/07
Filed: 1931-10-19
Abstract: 391,164. Engine stop-gear. WARREN,' F. and WARREN, S. F., 27, Lowick Road, Harrow, Middlesex. Oct. 19, 1931, No. 29056. Drawings to Specification. [Class 122 (iv).] A fire-extinguisher on a motor road vehicle is set in operation by the positive movement of the vehicle bumpers if a crash exceeding a predetermined intensity occurs. Displacement of the bumpers may also actuate means for breaking the ingition circuit. The transmission means from the bumpers may be mechanical, pneumatic or hydraulic, or electrical.
Patent GB-519985-A (GB)
Title: Improvements in and relating to brake drums
IPC: B60B3/00
Filed: 1938-10-07
Abstract: 519,985. Brake drums. MIDLAND MOTOR CYLINDER CO., Ltd., and TOGHILL, E. C. Oct. 7, 1938, No. 29070. [Class 103 (i)] A brake liner d of relatively hard metal such as cast iron or steel is split as at f and has an external screw-thread as shown by which it can be attached to the drum c of aluminium or magnesium alloy or other relatively lighter metal by screwing. The screw-thread is of buttress form and of steep pitch so that flats e are left to give a good contacting surface for conducting heat from the liner to the drum. The liner is arranged to screw into the drum by the application of the brake shoes in the normal direction of drum rotation and to abut at its end on the.drum at g and may be prevented from screwing outwardly with reverse rotation by a detachable flange on the other end of the drum or by a pin and slot drive. Studs sinking in inclined slots may be substituted for the screw thread.
Patent GB-382738-A (GB)
Title: Improvements in or relating to the interchange of heat between fluids particularly in connection with refrigerating plant
IPC: F25B39/02
Filed: 1931-10-20
Abstract: 382,738. Refrigerating. DOUBLE W. DAIRY EQUIPMENT CO., Ltd., 154, Liverpool Road, Birkdale, Lancashire, and SHARPE, H., 97, Belmont Road, Liverpool. Oct. 20, 1931, No. 29083. [Class 29.] Compression machines and systems.-In a refrigerant evaporator comprising a fan with hollow blades 18 driven by a motor 21, the inlet and outlet pipes 5, 23 for the refrigerant are connected to a chest 6 enclosing a single packing gland 12 through which the hollow boss 10 of the fan passes, the fluid entering the fan blades through a pipe 19 and leaving through an annular passage formed around the pipe 19 by the boss 10. The incoming and outgoing fluids are separated in the chest 6 by a wall 9 in which the tube 19 is journalled to rotate. The refrigerating system is completed by a compressor 1 and condenser 3.
Patent GB-656111-A (GB)
Title: Improvements in or relating to plate-type electrical secondary batteries
IPC: H01M4/73
Filed: 1948-11-09
Abstract: 656,111. Accumulators. VARLEY DRY ACCUMULATORS, Ltd., and FULLER, L. Nov. 9, 1948, No. 29135. [Class 53] An accumulator grid made as a single casting is provided with cross-bars 19, 20 having a rounded cross-section. Main cross-bars 17, 18 of oval or elliptical section may also be provided and the inwardly - facing surfaces of the frame 16 may also be rounded. The cross-bars may extend obliquely across the grid and are completely buried in the paste in the finished plate. The plates are used in a dry accumulator in which the electrolyte is absorbed in porous material which fills the spaces between the plates.
Patent GB-917655-A (GB)
Title: Liquid fuel containing a boron compound
IPC: C10L1/30
Filed: 1959-03-17
Abstract: Gasoline compositions contain up to 6 c.c. per U.S. gallon of tetraethyl lead, an ethylene dihalide scavenging agent and a boron compound of formula <FORM:0917655/III/1> obtained by reacting 3 moles of butane 1,3-diol with 2 moles of boric acid or 1 mole of boric oxide, in an amount sufficient to provide from 0,001% to less than 0,002% by weight of boron in the fuel.  Specifications 917,651, 917,652, 917,653 and 917,654 also are referred to.
Patent GB-812682-A (GB)
Title: Improvements in or relating to the recovery of ruthenium
IPC: C22B3/26
Filed: 1948-11-11
Abstract: Ruthenium isotopes such as Ru103 and Ru106 are recovered from residual aqueous solutions which have resulted from the dissolution of neutron-irradiated uranium in nitric acid and removal therefrom of the uranium by adjusting the pH of such residual solutions to 1 to 3, oxidizing the contained ruthenium isotopes to the octavalent state and extracting them by means of liquid halogen-substituted paraffin immiscible with the aqueous solution.  Preferred halogen substituted paraffins are tetrachlorethane and carbon tetrachloride or a mixture thereof. Initial pH adjustment may be effected by alkali metal hydroxide or ammonia and if desired such addition may be effected to a point where uranium begins to precipitate, final adjustment being made by the addition of nitric acid.  The resulting solution may be washed with tetrachlorethane or other liquid halogen-substituted paraffin to remove any organic substance which may remain from the uranium extraction and the washed aqueous solution is then treated for the oxidation of the contained ruthenium to the octavalent state, preferably by means of an aqueous solution of ammonium ceric nitrate. After oxidation the solution is extracted with, for example, tetrachlorethane and after separation, the organic phase is preferably washed with an ammonium ceric nitrate solution to remove contaminants taken up.  The organic phase is then acidulated with, for example, aqueous normal hydrochloric acid or nitric or sulphuric acids, if desired in the presence of reducing agents such as formaldehyde or sulphur dioxide, whereby the ruthenium passes to the aqueous phase as the chloride.