baber/WOPTO huggingface dataset:
Patent GB-857745-A (GB)
Title: Improvements in or relating to signal mixers
Inventor: SOSIN BOLESLAW MARIAN
IPC: H03D7/14
Filed: 1959-05-25
Abstract: 857,745. Valve frequency changing circuits. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. Oct. 14, 1959 [May 25, 1959], No. 17715/59. Class 40(6). A wide band frequency changer comprises a number of valves with their input grids connected to an input filter line and their anodes connected to an output filter line, the valve electrode capacities forming at, least in part, the shunt elements in each line. The input filter line F1-Fn includes capacity arms C 1 -C n  shunted with inductive arms comprising similar inductances which are all mutually coupled, the line passing both of the frequencies to be mixed. The anode comprises the valve capacities in conjunction with a tapped inductance L, the phase delay along which at the sum or difference frequency is equal to the corresponding sum or difference respectively of the phase delays for the two input signals along the input line. Alternatively, the two signals to be mixed may be applied to separate grids in each valve, in which case two separate input lines are provided. The arrangement may be used in push-pull (Fig. 2, not shown) by using two amplifiers, the two input lines being driven in push-pull at one frequency, by means of a centre-tapped transformer, and in phase at the second frequency while the two outputs are combined in a further centre-tapped transformer. The arrangement may be applied to transistors.
Patent GB-217780-A (GB)
Title: Improvements in tobacco pouches, purses and the like, of the tray type
IPC: A24F23/02
Filed: 1923-07-11
Abstract: 217,780. Cope, B. G. July 11, 1923. Pouches; purses.-In tobacco pouches, purses, and the like of the "tray" type, the tray portion a is provided with a backing b of semi-flexible material such as thin vulcanite, celluloid, &c., the flexible flat leather or like rim of the tray is lined with similar material, and a distending wire e is arranged inside the rim abutting against the join of the rim and the tray bottom. Pressure applied to the sides causes the tray to become hollowed and the rim, which normally lies parallel to the tray, to open upwardly and outwardly as shown. Both rim portion and tray are lined with rubber, silk or other material c and the pouch is covered with leather externally.
Patent GB-1502308-A (GB)
Title: Drafting mechanism
IPC: D01H5/62
Filed: 1975-04-30
Abstract: 1502308 Drafting rollers; air cleaning roller wipers LUWA AG 30 April 1975 [3 May 1974] 18040/75 Headings DID and D1F In a drafting machine having drafting rollers, each roller has a wiper contacting its surface, air guides direct cleaning air onto the wipers, and at least one roller set and associated wipers and air guides are movable to adjust the distance between the sets. Rollers 8, 10, 12 are carried in two fixed bearing blocks 6. Rollers 18, 20, 22, 24 are carried in bearing blocks 14 movable by spindles 16. Rollers 30, 32 are carried in bearing blocks 26 movable by spindles 28. Each roller has a wiper 33, which may be spring biased against it. Conditioned cleaning air is drawn through sliver inlet 35 and over the wipers by fan 39. Surfaces such as 73, 75 direct the air onto the wipers. Such surfaces and the relevant wipers are movable with blocks 14, 26. A filter may be located adjacent the fan.
Patent GB-752030-A (GB)
Title: Photographic silver halide emulsions containing fog inhibiting agents
Filed: 1954-06-21
Abstract: 7 - Hydroxy - 5 - methyl - 1:2:3:4:6 - pentazaindene is prepared by the gradual addition of acetic acid to an aqueous solution of 4:5-diamino - 6 - hydroxy - 2 - methylpyrimidine sulphate, sodium nitrite, and sodium hydroxide.  7 - Amino - 5 - carboxymethylmercapto - 1:2:3:4:6-pentazaindene is similarly prepared.  4:5 - Diamino - 6 - hydroxy - 2 - methylpyrimidine sulphate is prepared by reducing 4 - amino - 5 - nitroso - 6 - hydroxy - 2 - methylpyrimidine with sodium hydrosulphite and adding sulphuric acid.  4 - Amino - 5 - nitroso - 6 - hydroxy - 2 - methylpyrimidine is prepared by adding sodium nitrite and then sulphuric acid to an aqueous suspension of 4-amino-6-hydroxy-2-methylpyrimidine, itself prepared by refluxing together a mixture of acetamidine hydrochloride, ethanol, ethyl cyanacetate, and sodium ethoxide.
Patent GB-351724-A (GB)
IPC: B60B1/02
Filed: 1930-06-13
Abstract: 351,724. Vehicle wheels. BUDD WHEEL CO., 25th Street, Philadelphia, U.S.A.-(Assignees of Eksergian, C. L. ; 12141, Charlevoix Avenue, Detroit, Michigan, U.S.A.) June 13, 1930, No. 18138. Convention date, June 26, 1929. [Class 144 (i).] A wire-spoked wheel is tensioned by permanently distorting the hub or rim after assemblage of the spokes so as to produce axial elongation of the spoke anchorage. In the construction shown, the hub is originally of curved section such as 36, 38 and after assemblage of the spokes is distorted to assume a straight profile 37. The hub shown is built-up in three parts 29, 30, 31 the edges of which are formed with spokereceiving slots 35 and flash-welded together. The spokes are formed with outer and inner hemispherical and spherical ends 24, 25 respectively.
Patent GB-1407939-A (GB)
Title: Multicellular polymers
IPC: C08G73/00
Filed: 1974-04-25
Abstract: 1407939 Polymers from polyaldimines and foams thereof RHONE-POULENC SA 25 April 1974 [26 April 1973] 18167/74 Headings C3R and C3C A process for preparing a multicellular polymer comprises heating, at a temperature from 100 to 300 C., maleic anhydride and a polyaldimine of the general formula in which G represents a monovalent organic radical which contains less than 35 carbon atoms and at least one aromatic or heterocyclic ring in the α-position to the imine group in Formula (I), A represents an organic radical of valency n which contains less than 50 carbon atoms and at least one aromatic or heterocyclic ring in the α position to the imine group in Formula (I), and n represents a number at least equal to 2. A pre-polymer may be formed in a first step and further heated in a second step to obtain the multicellular polymer. In Examples pre-polymers are obtained by heating maleic anhydride with bis - (4 - benzylidene aminophenyl)-methane, with bis-(4-salicylideneaminophenyl)-methane and with 2,6-his- (salicylideneamino)-pyridine, the prepolymers being heated further to obtain multicellular polymers, and a foam is obtained in one step by heating maleic anhydride with bis - (4 - furfurylideneaminophenyl)methane; in some instances azodicarbonamide is added as a pore-forming agent, a polysiloxane is added as a surface-active agent, boric anhydride is added as a heat-stabilizing agent and dihydroxyazobenzene is added as polymerization inhibitor.
Patent GB-1034737-A (GB)
Title: Improvements in and relating to fuel effect mouldings
Inventor: BOONE JACK
IPC: F24C3/00
Filed: 1963-05-09
Abstract: 1,034,737. Imitation fuel. REINFORCED PLASTICS Ltd. May 7, 1964 [May 9, 1963], No. 18305/63. Heading F4W. [Also in Division B5] An imitation fuel element having undercuts has an outer skin of flexible translucent thermoplastic material moulded to a shape with undercuts, and a backing of relatively rigid thermo-setting plastic material. The outer skin is moulded separately, and the backing of polyester or epoxy-type resin, reinforced by glass or asbestos fibre laid up within the outer skin supported in a special fixture. Glass or asbestos fibre may be embedded in the outer skin to form a key between the skin and the backing.
Patent GB-438859-A (GB)
Title: Method of and apparatus for recovering gold or other metallic particles from sand and the like
IPC: B03B5/56
Filed: 1935-06-26
Abstract: 438,859. Centrifugal machines. GIRAND, J. B., Ellis Building, Phoenix, Arizona, U.S.A. June 26, 1935, No. 18329. [Class 23] A machine for the recovery of gold from heavy materials such as sand or refuse, or for similar purposes has a rotary drum 13 with an horizontal axis. The drum is formed by two truncated cones 30, 31 connected together at their bases, thus providing an annular V-shaped pocket 32. The outlet end 35 is of greater diameter than the inlet end 34 which receives material from the hopper 41 through the tube 40 controlled by the handoperated valve 43. The inlet also contains a perforated pipe 47 for the discharge of water to saturate the ore and to carry off the lighter materials after separation. Rings 12 on the outer surface of the drum are engaged by flanged wheels 11 on shafts supported by the frame and rotated manually through chain gear. When the operation of the machine is commenced, sand, or the material to be treated, is supplied to form a cushion in the pocket 32. Material is then supplied from the hopper 41 and water from the spray pipe 47. The heavy metallic particles are thrown outwards and are forced into the cushion the material of which is thus gradually displaced. The light material moistened by the spray moves on to the outlet 35 where it falls on to the travelling band 50. In a modification, the joint between the two parts of the drum is flattened and provided with passages 56, Fig. 7, through which the gold passes.
Patent GB-506697-A (GB)
Title: Improvements in or relating to means for sprinkling liquid on to freshly printed sheets coming from a printing machine
IPC: B41F23/06
Filed: 1938-06-21
Abstract: 506,697. Spray-producers; printing- machines. SCHNELLPRESSENFABRIK AKT.-GES. HEIDELBERG. June 21, 1938, No. 18373. Convention date, March 3. [Class 69 (iii)] [Also in Group XVI] In spraying-apparatus of the type in which a needle valve 18 controlling a jet nozzle 15 is operated by a piston 3 in a separate chamber 2 supplied with compressed air, a duct 29 opening into the chamber 2 and controlled by the piston 3 supplies the compressed air to the nozzle 15. The apparatus is used for spraying printed sheets issuing from a printing-machine, which controls a valve in the air supply pipe 8 or drives a pump supplying the quantity of air necessary for each spraying operation. The piston 3 is acted on by a spring 5 the tension of which is regulated by a screw cap 6, and operates the needle valve 18 through a rod 4 acting on the free end of a stirrup 26 pivoted at 27 to a standard 20 and carrying screws 28 co-operating with an adjustable disc 24 on the stem of the valve. The valve is closed before the piston 3 closes the duct 29 so that the formation of drops is prevented. Liquid is supplied from a reservoir 13 through a valve 11 to a chamber 9 surrounding the needle valve 18. A spring 23 closes the needle valve and a screw 30 regulates the maximum opening. To clean the jet the standard 20 together with the needle is removed, the adjustments 24, 30 being unaffected.
Patent GB-216725-A (GB)
Title: Improvements relating to golf clubs
IPC: A63B53/02
Filed: 1923-07-17
Abstract: 216,725. Williamson, H. July 17,1923. Golf clubs. - In order to obtain a correct balance an iron golf club head is constructed with a socket composed of lighter metal than that of which the blade is constituted. The blade A of mild steel, has a short neck B into which a socket D of aluminium alloy is screwed. The parts are secured by a rivet G. Instead of screwing together, the pa.rts may be tapered and be united by driving together.
Patent GB-793897-A (GB)
Title: Improvements in apparatus for drying agricultural products
IPC: F26B9/00
Filed: 1956-06-15
Abstract: 793,897. Drying grain &c. BLANCH, A. B. Jan. 29, 1957 [June 15, 1956], No. 18517/56, Class 34(2) Apparatus for drying agricultural products, e.g. grain, comprises a louvered tray 10 inclined at a small angle to the horizontal and having overlapping slats 11 and a removable endplate 12. Hot air from a furnace 14 is supplied by a fan 15 to a duct 12a and passes beneath the tray and up between the slats so drying the grain. In another embodiment in which two traps are arranged side by side a threeposition damper provided in the air duct controls the supply, so that air passes to either or both trays at will.
Patent GB-113426-A (GB)
Title: Improvements in and relating to House Gowns.
Inventor: GATES SUSAN PHILLIPS
IPC: A41D1/22
Filed: 1917-12-13
Abstract: 113,426. Gates, S. P. Dec. 13, 1917. Dresses; sleeves.-A house gown consists of a one-piece sack-like body having a V-shaped neck opening which can be adjusted by eyelets and a tie string 10. The sleeves 12 are short. On the shoulders are V-shaped gussets 11, the wide ends of which form portions of the neck openings. Loops 6 are provided for a waist belt 7.
Patent GB-578590-A (GB)
Title: Improvements in or relating to the preparation of penicillin salts
IPC: A61K31/43
Filed: 1942-12-31
Abstract: Pencillin salts which are stable and active are prepared by converting penicillin into its salt with an inorganic base under substantially anhydrous conditions.  The preferred salt is the ammonium salt, and the preferred way of preparing the salt is to dissolve the free pencillin in an organic solvent and to add the inorganic basic substance.  In the case of the ammonium salt free dry ammonia is passed through the solution, in this case the dry ammonium salt will precipitate.  If desired the precipitation may be repeated to obtain a purer product.  Moreover the solution to be used for precipitation of the salts may be pre-purified by reextracting the solution in an organic solvent with a buffer solution whereby the active principle goes into the aqueous buffer solution, which is then acidified and re-extracted with organic solvents.  Other preliminary purification methods such as treatment with fuller's earth may also be used.  In examples: (1) Culture fluid is extracted with chloroform, reextracted with a phosphate buffer, acidified and re-extracted with chloroform.  Dry ammonia gas is passed in to the dried chloroform solution and the precipitated salt filtered.  (2) The chloroform solution obtained by extraction of the culture fluid is diluted with petroleum ether, the precipitate centrifuged, dissolved in benzene, extracted with a phosphate buffer and treated as in example (1). (3) Culture fluid is extracted with chloroform as in examples (1) and (2).  The chloroform solution is dried and treated with sodium bicarbonate and filtered.  The filtrate is treated with magnesium oxide which is separated, decomposed with sulphuric acid and the solution so obtained extracted with chloroform.  The extract is diluted with benzene and the ammonium salt formed by passing in ammonia gas.  The Specification as open to inspection under Sect 91 includes also a process for the extraction of penicillin from a pencillin culture fluid by treatment of the fluid with chloroform and the extraction of the penicillin from the chloroform.  The invention disclosed in the Specification as open to inspection is also stated to comprise in general the production of highly purified concentrates of the anti-bacterial principle or principles of moulds, and particularly of moulds of the penicillin group.  The extraction of the penicillin from the chloroform is preferably carried out by adding thereto an aliphatic hydrocarbon such as petroleum ether to precipitate the penicillin.  An additional feature of the extraction process is that of adding ammonium sulphate to the culture fluid to aid in the extraction of the penicillin.  It is also stated that the ammonium sulphate may, if desired be replaced by practically any soluble salt such as sodium chloride or ammonium chloride.  The process of forming salts of penicillin extends also to the use of organic bases, of which b -naphthylamine is specified.  An additional example is also included.  This subject-matter does not appear in the Specification as accepted.
Patent GB-106242-A (GB)
Title: Improvements in Vulcanising Presses.
IPC: B29C43/56
Filed: 1916-12-29
Abstract: 106,242. Soc. pour la production et la vente des articles en caoutchouc " Bogatyr," and Talalay, J. A. Dec. 29, 1916. Vulcanizing-chambers. - Vulcanizing-chambers are provided with top and side press plates K, L connected to spindles operated by external handwheels.
Patent GB-1175983-A (GB)
Title: Molding Compositions
IPC: C08F263/08
Filed: 1967-04-24
Abstract: 1,175,983. Polymers of Diels-Alder adducts. FMC CORP. 24 April, 1967 [2 June, 1966], No. 18711/67. Heading C3P. A composition comprises an insoluble polymer of a diallyl phthalate ester of a Diels-Alder adduct of hexachlorocyclopentadiene and an unsaturated dibasic carboxylic acid insolubilized in the presence of a filler, intimately mixed with antimony oxide, the antimony oxide being present in a ratio of 50 to 150 parts by weight per 100 parts of the polymer, the entire composition being in particulate form. A preferred composition also contains a diallyl phthalate prepolymer. Preferably the polymer is insolubilized in the presence of antimony dioxide. In the examples diallyl chlorendate and the diallyl ester of the tetrahydrophthalichexachlorocyclopentadiene adduct is cured in the presence of antimony oxide, calcium silicate (wollastonite), tris-(methoxy ethyl) vinyl silane, a silica-antimony oxide pigment, tert-butyl perbenzoate and benzoyl peroxide and the product ground. Compositions are then prepared comprising the ground product, diallyl orthophthalate prepolymer, acetone, glass fibres, wollastonite, t-butyl perbenzoate, tris-(methoxyethyl) vinyl silane, calcium stearate and calcium silicate powder, and the compositions are cured.
Patent GB-153540-A (GB)
Title: Improvements in or relating to means employed in the discharging of vertical or inclined retorts or chambers
IPC: C10B33/02
Filed: 1920-07-06
Abstract: 153,540. Dempster, R. & J., Knight, H. S., and Siddall, F. J. July 6, 1920. Discharging.-Means for effecting intermittent or complete discharge at will of vertical or inclined gas or like retorts or chambers consist of two grates or supports d, e. By operating the grate e, which is of larger area than the grate d, or by operating both together, the retort is completely discharged, while intermittent discharge is obtained by operating the grate d alone. As shown, the grate d is multiple-armed, rotating on a shaft operated by a hand-wheel g outside the casing b, and controlled by a ratchet-wheel h and pawl i. The grate e is rotated by the lever j. The grates d, d of the two retorts shown may be placed adjacent, to simplify gearing.
Patent GB-1025385-A (GB)
Title: Improvements in or relating to cold trap separation of fluids
Inventor: BRUIJN HENDRIK DE
IPC: B01D53/00
Filed: 1962-05-16
Abstract: 1,025,385. Cold separation of gas mixtures. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. May 15, 1963 [May 16, 1962], No. 18853/62. Heading F4P. In a process for freezing out readily condensible constituents from a gas mixture, e.g. helium containing water vapour and carbon dioxide comprising passing the mixture through a heat exchanger duct 9, Fig. 2 (not shown), cooled by cold helium traversing a duct 4 the so-cooled mixture leaving the cold end of duct 9 and containing traces of entrained ice is warmed to effect vaporization of said ice. Warming is effected in an inner duct 6 extending from the cold to the warm end of the exchanger and surrounded by a helical wire mesh 7 designed to conduct heat from the warm to the cold end thereof. A plurality of such exchangers 1, Fig. 1 (not shown), are arranged in series. In a modification, the cooling duct 11, Fig. 5 (not shown), of a plurality of exchangers in series extends axially of the duct 12 traversed by the gas mixture which in turn is surrounded by the warming duct 13 the outlet 15 of which may be connected to the inlet of trap 16, serving to vaporize any remaining entrained ice.
Patent GB-221320-A (GB)
Title: A process for the manufacture of muffs or other hollow bodies out of aluminium
IPC: B22D21/00
Filed: 1923-07-23
Abstract: 221,320. Benedetti, F. de. July 23, 1923. Tubes; cupped articles.-Hollow articles of circular or other section are made from aluminium or aluminium alloy by first chillcasting the metal in the form of a cylinder 1 of approximately the required section and with one end partly or wholly closed, and then drawing down the cylinder between dies, to the required thickness. The closed, or partly closed end may then be removed. The blank may be cast under pressure.
Patent GB-962168-A (GB)
Title: Improvements in or relating to pneumatic tyres
Inventor: JENKINS HERBERT FREDERICK LEON
IPC: B60C9/02
Filed: 1960-05-28
Abstract: 962,168. Pneumatic tyres. DUNLOP RUBBER CO. Ltd. April 18, 1961 [May 28, 1960], No. 18965/60. Heading B7C. A pneumatic tyre having a tread formed from rubber composition having in its vulcanized form a hysteresis loss greater than 0.04 joules per c.c. at a temperature of 25 ‹ C. and preferably less than 0.03 joules per c.c. at 70‹ C., is provided with a carcase reinforcement consisting solely of rubberized parallel steel cords and a pair of bead wires, the cards each extending from at least one bead wire to provide two layers of crossed cords in each sidewall. The reinforcement may comprise either two plies of cords wrapped at each edge around the adjacent bead wire, or a single ply of cords having its edges doubled around the bead wires and back along the sidewalls to overlap in the tread region of the tyre. In each case the cord angle may be 60 degrees to the circumferential direction. The tread rubber may be a butyl or GR-S composition and the sidewall may be of the same composition or a different composition such as natural rubber.
Patent GB-1173316-A (GB)
Title: Solid fuel combustion apparatus
Inventor: FORD ROBERT INNES
IPC: F23M5/00
Filed: 1966-04-29
Abstract: 1,173,316. Solid fuel stores. COAL INDUSTRY (PATENTS) Ltd. 14 April, 1967 [29 April, 1966], No. 19005/66. Heading F4W. A wall or door of solid fuel burning apparatus has a panel 4 comprising a frame 5 and spaced horizontal strips 6 of transparent or translucent material arranged to overlap in echelon formation, burning spaces for the entry of secondary air. The strips 6 may be arranged to pivot about their longitudinal axes under the control of a thermostat in the flue.
Patent GB-404011-A (GB)
Title: Improved magnetic compositions containing principally iron and cobalt
IPC: C22C19/07
Filed: 1932-07-06
Abstract: Magnetic articles are made from an alloy containing 30-70 per cent of iron, and 70-30 per cent of cobalt, in which is incorporated 0.5-4 per cent of vanadium, or up to 3 per cent of manganese, or both vanadium and manganese, and which, preferably after limited mechanical working as by hot rolling, is annealed at about 850 DEG C., or higher, and cooled rapidly as by quenching in brine and ice. The alloy, after casting, is maintained at 1000 DEG  C. for 3 hours, and rolled at 1000 DEG  C. to a thickness of about 0.1 inch, with a reduction of 0.025 inch per pass, and an interval of 5 minutes after every two passes, to restore the temperature. Sheets containing not more than about 2 per cent vanadium are annealed at about 900 DEG  C. for about 1 minute and quenched, the heat treatment and quenching being repeated three times in some cases.  To sheets of higher vanadium content an anneal at about 850 DEG C.-950 DEG  C. and a single quench are applied.  From the heat-treated sheets rings and other shapes may be punched, and thin strips may be rolled for making stampings for small receiver diaphragms.  Thin tape rolled to 0.006 inch thick or less may be quenched in air.  To develop the magnetic properties, the sheets are pot annealed for 1 hour at about 900-1100 DEG  C. in an electric furnace, if desired in vacuo or in hydrogen, and cooled in the furnace.  A further re-heating to about 600 DEG  C. for 15 minutes and quenching in air may produce a further improvement.