baber/WOPTO huggingface dataset:
Patent GB-615594-A (GB)
Title: An improved method of and apparatus for sealing wrappers
IPC: B65B51/18
Filed: 1946-08-29
Abstract: 615,594. Heat-sealing wrappers. HARVEY, V. P. and MOLINS MACHINE CO., Ltd. Aug. 29, 1946, No. 25980. Addition to 605,899. [Class 94 (i)] An improvement in or modification of the invention of the parent Specification in which rectangular block shaped articles, enclosed in heatsealing cellulosic wrappers, are moved together with and in contact with heated elements through, out the sealing operation. The articles, which may consist of block shaped cigarette packets 1, may be moved successively into a stack as shown in Fig. 3 in which they are moved continuously upward. Each sealing device comprises an endless conveyer 6 on which are mounted on pivots 8, a number of electrically heated members 7 suitably spaced apart so that each registers with a narrow face of a packet in the stack. Conveyers carrying elements are provided on three sides of the stack, the fourth side being formed by a fixed plate. Each heated member comprises a part 12 (Fig. 3) pivoted to the conveyer, and a part 13, which contains an electrical-heating coil, slidable relative to part 12 and urged away from it by springs 14 and coupled thereto by pins and slots 16 and 15. Electric current is supplied to the heater coil from contact bar 20 (Fig. 3) through contacts 19 and the springs 14. A wrapped packet is engaged by a pusher 26 which raises it into the stack until it is contacted and gripped by opposing heating elements which carry the packet to the top of the stack. Heating elements are then urged away from the packet by contact of pins 11 with fixed guides 9, the freed packet being removed in any suitable way. Each heating element contacting a long narrow face of the packet has a heating surface 25 of substantially H-shape, as shown in Fig. 4, which engages a long strip of wrapping material and two transverse strips. The wrapper is heat sealed along the latched areas, 2, 3, 4 and 5, Fig. 1.
Patent GB-862499-A (GB)
Title: Improvements in and relating to copolymeric products
Inventor: DAVISON ROGER ALLEYN
IPC: C08F220/46
Filed: 1958-08-13
Abstract: Copolymers containing a major proportion of acrylonitrile are prepared by copolymerizing a major proportion of acrylonitrile and a minor proportion of ethylene sulphonic acid or a salt thereof in p  a solvent for the monomers that is also a solvent for the copolymers. Minor amounts of additional comonomers, e.g. methyl acrylate, vinyl acetate and styrene, may also be used.  The solvent may be dimethyl formamide, or aqueous solutions of sodium thiocyanate or calcium thiocyanate.  Polymerization may be effected in the presence of catalysts, e.g. azobisisobutyronitrile, and the products used in the manufacture of fibres having improved dyeing properties. Specification 796,294 is referred to.
Patent GB-1302976-A (GB)
IPC: F02K1/62
Filed: 1970-05-29
Abstract: 1302976 Thrust reversers MOTOREN-UND TURBINEN-UNION MUNCHEN GmbH 29 May 1970 [29 May 1969] 26070/70 Heading B7G [Also in Division F1] A gas turbine engine has a thrust reverser comprising three or four pairs of inner and outer flaps 19, 5 pivotally mounted so as to close ducts 11 in the jet pipe 3 and engine fairing 1 when not in operation. Each pair of flaps is operated by a mechanism including tracks 12 and 14 in which rollers 10 and 13, fixed to each end of a first lever 9, run. A second lever 15 is pivoted at one end 16 to the first lever 9 and at the other end 18 to inner flap 19 and has a roller 17 running in track 12. Extension of the pistonrod 7, 8 of ram 6 causes both flaps to pivot simultaneously into the thrust reversal position. Cascade assemblies may be mounted in duct 11 or flaps 5 may be formed as scoops (41), Fig. 5 (not shown), with side walls (43). Jet pipe 3 is provided with reheat apparatus and with a heat shield 21 of which flaps 19 form a part, and may be cooled by compressor air which flows to atmosphere through holes 44. A variable area outlet nozzle 24 is provided, which comprises a plurality of flaps 26 and a skirt 27, 28 movable along the axis 2 of the engine by rams 33. Skirt 28 bears on rollers (37), Fig. 4 (not shown), mounted on flap 26 to decrease the nozzle butlet area while pins (39) engaging in guides (40) increase the outlet area when the skirt is moved downstream relative to the exhaust gas stream,
Patent GB-616218-A (GB)
Title: Improvements relating to operating mechanisms for electric switch gear and the like
IPC: H01H39/00
Filed: 1946-08-30
Abstract: 616,218. Breech mechanisms. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 30, 1946, No. 26095. Convention date, Aug. 30, 1945. [Class 92 (ii)] [Also in Group XXXVII] A mechanism using an explosive charge to close an electric circuitbreaker has a piston 32 sliding within a barrel 21 which has a flange 22 located in a recess formed in a base-plate 14. An explosive cartridge 27 is retained in the breech at the lower end of the barrel by a breech block 36 which slides in guides 34. A hammer 50 strikes a firing pin 38 to detonate the cartridge, and to operate this hammer a pin 57 is moved to the right along a slot 58. The pin 57 carries with it a latch 56 which retains a pin 52 on an extension 51 of the hammer 50. This causes an anticlockwise rotation of the hammer about its pivot 49 to stress a spring 53, but when the latch 56 engages a stop 59, the pin 52 is released to free the spring- loaded hammer. When the breech is opened, cams 44 actuate extractors 29 to eject the spent cartridge. The release of a catch (not shown) which normally latches the block in the closed position, enables the breech block to be removed and the barrel and piston may then be withdrawn without removing the breech guides 34. In Figs. 6-9 (not shown) a breech block with a modified hammer assembly is illustrated.
Patent GB-152522-A (GB)
Title: Improvements in hoods for road vehicles
IPC: B60J7/12
Filed: 1919-10-24
Abstract: 152,522. Jones, C. W., and Bevan, H., (trading as Lowe, Bevan, & Co.). Oct. 24, 1919. Hoods.-A collapsible hood for vehicles, of the type comprising separately collapsible front and back portions for protecting the front and the rear seats, is so arranged that the fabric can be secured by buttons or the like at the back of the rear seat or at the back of the front seat as desired. The two portions of the hood are carried on two main frames 1, 12 pivoted together at 13. The front portion of the hood is carried on a member 5 attached to the frame 1 by two links 6, 7 pivoted to the member 5 at 11, 10 and to the frame 1 at 8, 9. The rear portion of the hood is carried by a lazy-tongs linkage attached to the frame 12, and shown expanded in Fig. 1 and collapsed in Fig. 3. The member 16 of the lazytongs linkage is prolonged beyond its pivot so as to come in contact with the lower side of the member 14, so as to prevent the linkage from being expanded too far. The fabric 26 of the hood can be secured at the back of the rear seat 25, as shown in Fig. 1, or at the back of the front seat, the lazy-tongs linkage being collapsed, as shown in Fig. 3.
Patent GB-482870-A (GB)
Title: An improved cartridge belt
IPC: F42B39/08
Filed: 1937-09-27
Abstract: 482,870. Cartridge belts for machine guns. BERGMANN, T. E. Sept. 27, 1937, No. 26102. Convention date, Sept. 28, 1936. Addition to 459,631. [Class 92 (ii)] A metallic cartridge belt, as described in the parent Specification, is modified by rigidly securing the hinge pins to each of the belt members, to prevent the loss of the hinge pins, one end of each belt member having a hook which engages over the hinge pin of the adjacent member, and which is closed to prevent accidental uncoupling of the belt by the resilient stamped-out portion of the hook-carrying member constituting the cartridge-holder. The hinge pin 10, Fig. 1, may be riveted or otherwise secured in the lugs 9 and a tongue 3 on the opposite side of the belt member 1 is shaped to form a hook 8 which is interengaged with the hinge-pin of the adjacent belt member. When the cartridges are inserted, the resilient portion 5 constituting the holder is forced outwards to the dotted line position and effectively closes the gap in the hook, thereby preventing the hook from being disengaged. In a modification, one side of each belt member is folded to form a lug 12, Fig. 3, with a beaded end 13, this lug being slotted at 14 to receive the hook 8 of the adjacent belt member. Resilient stamped - out holders 5 may be provided on both sides of the belt members.
Patent GB-205818-A (GB)
Title: Improved process of and apparatus for cleaning sand filters of large surface
IPC: B01D24/20
Filed: 1923-10-19
Abstract: 205,818. Sivade, A. Oct. 20, 1922, [Convention date]. Filters with loose filtering-materials.-Large sand filters are cleansed by means of a closed box or frame which is intermittently moved over the entire area of the bed, the sludge from the bed below the frame in each position being caused to rise to the surface and pumped away with water. An electrically-driven pump on a pontoon 2 supplies water through a pipe 12, a telescopic pipe 21, vertical pipes 32 and perforated pipes 32<1> into the sand below the frame 3. The sludge is washed from the sand and rises to the surface of the water from which it is withdrawn through pipes 28 by a second pump on the pontoon. The pontoon is in connection by floating pipes 6 with the side of the filter. The frame 3 is moved intermittently along a floating rail 4 which is itself movable over the filter.
Patent GB-1011502-A (GB)
Title: High-frequency mesa transistors
IPC: H01L23/26
Filed: 1964-06-25
Abstract: 1,011,502. Semi-conductor devices. SIEMENS & HALSKE A.G. June 25, 1964 [June 27, 1963], No. 26244/64. Heading H1K. A diffused-base mesa transistor has parallel rectangular base and emitter electrode stripes 4 and 5 respectively of length not greater than 47 Á and width not greater than 18 Á formed on the mesa plateau 10, with leads in the form of gold wires 7 and 8 of diameter 12Á or less attached to the electrode stripes. As shown, the base layer 3 of a PNP transistor is produced by the diffusion of antimony into a wafer 1 of germanium P-doped with indium or gallium and the emitter zone 6 is formed by alloying the vapour-deposited gold and aluminium electrode stripe 5. The base electrode stripe 4 is of gold and silver, the width of each stripe being about 15 Á and the length 40 Á, and the distance between the two stripes being 10 Á. The eccentrically-located mesa is square with a side length of between 60 Á and 70 Á. An ironcobalt-nickel collector electrode 2 is soldered on by means of an indium-gallium alloy containing 0.5% by weight of gallium. Gold wires 7 and 8 of diameter 8 Á are attached by thermocompression bonding to the emitter and base electrode stripes at points at least 5 Á from the germanium surface 10 and these contact points 9 are then covered with a light silicone varnish which is burnt in. The transistor is encap sulated in a housing which is filled with a silicone oil containing a molecular sieve as a siccative.
Patent GB-1462406-A (GB)
Title: Combustion apparatus
IPC: F23R3/26
Filed: 1974-06-13
Abstract: 1462406 Gas turbine &c. combustion chambers; jet pumps GENERAL MOTORS CORP 13 June 1974 [2 July 1973] 26248/74 Headings F1E and F1L Combustion apparatus, e.g. for a gas turbine, comprises an innermost wall 7 defining a combustion zone 8, a first intermediate wall 14 surrounding wall 7 to define an annular air passage 28 having a jet-pump nozzle 34 at its downstream end, a second intermediate wall 18 surrounding wall 14 to define an annular passage 35 for recirculation of combustion products 39, 36 from the downstream to the upstream end of combustion zone 8, and an outermost wall 3 defining a dilution air passage 22 with wall 18. Combustion air is supplied to an inlet 4 and part flows, as primary air, through angularly spaced tubes 15 supported from end-wall 16 into a manifold 12 and thence into passage 28. Most of this air issues through converging jet-pump nozzle 34 and entrains some of the products 39 leaving the downstream end 11  of combustion zone 8 into recirculation passage 35 to flow between tubes 15 into the upstream end 10 of zone 8. A small part of the primary air by-passes nozzle 34 and flows directly from passage 28 to passage 35 via gaps 64 between walls 14, 31. Rectangular vanes 55 maintain the desired width of nozzle 34. Optimum angles and proportions of the latter and of lip surface 56 are specified. Dilution air flowing through passage 22 enters dilution zone 20 via holes 23 and smaller holes 24. A rotatable control ring 26 having openings 27 may overlie holes 23.
Patent GB-189924-A (GB)
Title: An improved steel for making magnets
IPC: H01F1/04
Filed: 1921-10-05
Abstract: 189,924. Watanabe, S. Oct. 5, 1921. Alloys.-A self-hardening steel alloy for permanent magents contains 1-5 per cent of chromium, 1-3 per cent of manganese, and 0.5-1 per cent of carbon, with or without the addition of one or more of the following elements : tungsten, cobalt, molybdenum, vanadium, silicon, copper, nickel, aluminium, uranium, zirconium, boron.
Patent GB-250844-A (GB)
Title: Improvements in or relating to the steering of trailers for motor vehicles
IPC: B62D13/04
Filed: 1925-10-21
Abstract: 250,844. Deutsche Last-Automobilfabrik Akt.-Ges., and Traugott, J. Oct. 21, 1925. Steering.-In a trailer vehicle which can becoupled at either end by a steering arm or drawbar a to a tractor, the track rods o connecting- the stub axles at each end are connected by linksm arranged at one side of the vehicle to a lever l which is pivoted at k and has an arm e connected by rods d to arms c on the draw-bars.
Patent GB-1436883-A (GB)
Title: Process for the production of silanol-stopped diorganopoly siloxanes
IPC: C08G77/22
Filed: 1973-06-01
Abstract: 1436883 Preparing higher polydiorgano- Siloxanes GENERAL ELECTRIC CO 1 June 1973 [20 July 1972] 26395/73 Heading C3T A silanol-terminated polydiorganosiloxane of viscosity 1,000-10,000,000 cP./25‹ C. and silanol content 0À001-0À5 wt. per cent is obtained by equilibrating a silanol-terminated polydiorganosiloxane of viscosity 5-900 cP./ 25‹ C. with a cyclic polysiloxane [R 2 SiO] 3-10  at 55-200‹ C. in the presence of 0À1-75 wt. per cent of the total mixture of acid activated carbon, acid activated clay or a cation exchange resin until the required viscosity is obtained, then stripping off volatiles, each R being a hydrocarbon, halohydrocarbon, or cyanoalkyl radical. In examples a mixture of cyclic [Me 2 SiO] 4  with HO(Me 2 SiO) 5 H or another dimethylpolysiloxane diol, or of cyclic with hydrolysed MePhSiCl 2  (a linear diol/ cyclic mixture), or hydrolysed alone is heated over H 2 SO 4 -activated clay, or a 70 : 30 linear : cyclic hydrolysis mixture from Me 2 SiCl 2  is heated over H 2 SO 4 -treated carbon black or cation-exchange resin. The products are cross-linked with CH 3 COOC 2 H 4 Si(OAc) 3  and (t-BuO) 2 Si(OAc) 2  or with Si(OEt) 4 , in the presence of dibutyltin dilaurate as catalyst.
Patent GB-814735-A (GB)
Title: Improvements in and relating to liquid sprinkler systems for fire extinguishing
Inventor: STOBBS ARNOLD HUNTER
IPC: A62C35/64
Filed: 1955-09-15
Abstract: 814,735. Fire extinguishing systems. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Dec. 12, 1956 [Sept. 15, 1955], No. 26436/56. Class 47 In a combined ventilation and fire extinguishing system, a stream of fire extinguishing liquid is mixed with the ventilating draught to form a fire extinguishing mist or fog which is projected into the space being ventilated, e.g. a ship's cabin or other location. Ventilating air flows from an air supply pipe 3, Fig. 1, into a port 19 in a casing 8, Fig. 2, and through a passage 9, to outlet perforations 24 which project the flowing stream fanwise into the cabin 1. A fire extinguishing liquid supply passage 10 in the casing 8 is normally closed by a frangible plate 11. At a predetermined temperature a fusible metal link 15 releases a spring- loaded pin 13 which fractures the plate 11 allowing liquid in the passage 10 to flow into the chamber 9 and mix therein with the air entering the port 19 to form a mist or fog which is projected into the cabin 1 through the perforations 24. Downward movement of the pin 13 is limited by a collar 20 thereon having serrations 22 which prevent obturation of the passage 10. Ventilating air is also introduced into the cabin through an air diffuser 2 connected to the air supply pipe 3. Temperature controlled means may be provided for automatically shutting off the passage of air through the diffuser when the temperature in the cabin reaches a predetermined maximum. The air entering through the diffuser entrains and mixes with the air in the cabin, and in the case where no provision is made for shutting off the passage of air through the diffuser, the diffuser may be so disposed that when the mist or fog is projected into the cabin, some of it will be projected at the diffuser and be entrained with the air entering through the diffuser. Vitiated air normally passes out through an outlet 7 which may be automatically closed when the fire extinguishing means comes into operation. In another arrangement, both the forced draught ventilating air and the liquid are fed to a nozzle so that the liquid is atomized by the air passing through the nozzle.
Patent GB-1338527-A (GB)
Title: Aqueous electrolytic stripping bath
IPC: C25F5/00
Filed: 1972-06-07
Abstract: 1338527 Electrolytic stripping bath BERGISCHE METALLWARENFABRIK DILLENBERG & CO K G 7 June 1972 [23 June 1971] 26593/72 Heading C7B A bath for electrolytic detachment of coatings composed of NiO, Ag, Au or Cr from support bodies of Cu, Cu alloy, tin alloy, stainless steel, high temp nickel base alloy, or high temp chronium base alloy, the bath comprising 750- 935 like of sulphur-containing acid, alkyl sulphonic acid, aryl sulphonic acid as a stripping component and 60-200 cc/ litre of an alcohol selected from the group consisting of methanol and ethanol, the current being 5-25 amp/dm<SP>2</SP> and the temperature 20-80C. A nitro aromatic compound is used as an accelerator in amount 5-50 cc per litre of bath namely mononitrobenzene, dinetrobenzene trinitrobenzene, mononitrotoluene and mono, di- and tri-nitrobenzoic acids. A typical composition is 900 cc phenol sulphonic acid 80 cc methyl alcohol 20 cc mononitrotoleune.
Patent GB-1509357-A (GB)
Title: Hydraulically driven striking device
IPC: F01L25/06
Filed: 1976-06-25
Abstract: 1509357 Hydraulic reciprocating motors LINDEN-ALIMAK AB 25 June 1976 [26 June 1975] 26601/76 Heading F1A [Also in Division B4] A hydraulically driven percussive tool, e.g. a rock drill, comprises a housing 1 having an hydraulic fluid supply line 4 and return line 5, a striking piston 2 and a slidable valve 8, the valve 8 controlling communication between a lower chamber 7 of the cylinder and the supply and return lines such that when valve 8 is in its upper position chamber 7 is at low pressure and the piston is driven downwards to perform its working stroke, whilst when valve 8 is in its lower position chamber 7 is at high-pressure and the piston experiences a net upward force, the valve being moved downwards by the piston after it has completed part of its working stroke, the valve having a surface 8d which forms part of the boundary of a control chamber 10, surface 8d being arranged so that pressure within control chamber 10 tends to move valve 8 downwards, movement of piston 2 opening a communication 13 between control chamber 8 and the supply line during an earlier part of the working stroke, the pressures exerted on other parts of the valve being such that when communication 13 is open the valve is already moving downwards when the piston starts to move the valve. Preferably the piston divides the cylinder into an upper chamber 6 which is always at high pressure and lower chamber 7. The movement of the piston is damped at the end of each stroke by land 2a entering recess 6a or 6b. The valve 8 is a sleeve with a larger diameter portion which damps the motion of the sleeve at the end of each movement by entering close fitting portions 16 or 17 of the cylinder. The sleeve valve serves to connect chamber 7 alternatively to the supply and return lines. The diameter of the lower end of sleeve 8 is greater than that of the upper end so that the pressure in chamber 7 exerts a net upward force on the valve sleeve. Relief 15 and land 2a, 2b on piston 2 act as a spool valve to connect control chamber 10 via passage 13 with supply line 4 or return line 5. Relief 20 and lands 2b, 2c similarly connect or disconnect passage 18 to supply line 4. If tool portion 3 is not in position to be struck by hammer piston 2 the piston will remain in contact with valve 8. Chamber 7 will thus be closed as soon as valve 8 closes gallery 12 and the compression of fluid in chamber 7 will halt the piston before it strikes the housing.
Patent GB-519048-A (GB)
Title: Process for the manufacture of lacquer raw materials from fossil resins
IPC: C09F1/00
Filed: 1938-09-13
Abstract: 519,048. Resin lacquers. I.G. FARBENINDUSTRIE AKT.-GES. Sept. 13, 1938, No. 26745. Convention date, Sept. 13, 1937. [Class, 2 (iii)] Lacquer raw materials are obtained from fossil resins, e.g., Kauri-copal, Congo-copal or amber; by heating with an indifferent solvent such as tetrahydronaphthalene and with a ketone having a critical temperature below 300‹C. and not decomposed at this temperature, e.g., cyclohexanone, methylcyclohexanone or di-isobutylketone. The acid number of the products may be reduced by reacting with alcohols simultaneously or subsequently to the heating with the ketone. Suitable alcohols are glycerol, glycol,- 1.3-butylene , glycol, benzyl alcohol and heptyl alcohol. In an example, amber is heated in a closed vessel with tetrahydronaphthalene and di-isobutylketone, the reaction mixture being cooled, treated with fuller's earth and the solvent removed by distillation, leaving a light-coloured resin. The acid number may be reduced by adding to the reaction mixture, prior to cooling but after removal of formed water, ethylene glycol and again treating in an autoclave, formed water being released and the mixture worked up as before'after a further heating.
Patent GB-1174864-A (GB)
Title: Improvements relating to Electrically Conductive Abrasive Bodies
Inventor: TURNER FRANK ANTHONY LEONARD
IPC: B24D3/34
Filed: 1967-06-09
Abstract: 1,174,864. Grinding-wheels. NORTON ABRASIVES Ltd. 7 June, 1968 [9 June, 1967], No. 26760/67. Heading C4V. A grinding-wheel is formed from a mixture of electrically non-conducting abrasive particles, electrically conductive metal particles each of which comprises a core of a first metal bearing a coating of second metal having a greater oxidation or corrosion resistance than the first metal, and a curable binder, said mixture having been moulded and cured. The wheel may contain 10-60% by volume of electrically non-conducting abrasive particles and up to 90% by volume of the electrically conductive metal particles, the centre being a core which may or may not be corrosion or oxidation resistant, together with a curable binder, the metal particles and binder being respectively present in proportion by volume of between 15 and 75% and between 85 and 25% of the combined volume of metal particles and binder. The metal particles may be 100-300 mesh per inch. A specified binder is a phenolic resin and the metal coated particles may be of copper with a coating of silver, gold, or platinum. The abrasive particles may be of aluminium oxide. Paradichlorobenzene may be included in the moulding composition to give the wheel a porous structure.