baber/WOPTO huggingface dataset:
Patent GB-955355-A (GB)
Title: Improvements in counter blow hammers
IPC: B21J13/00
Filed: 1961-10-27
Abstract: 955,355. Power hammers. B. & S. MASSEY & SONS Ltd., S. W. SLATER, and J. E. RHODES. Oct. 29, 1962 [Oct. 27, 1961], No. 38470/61. Heading B3H. A counterblow hammer has a shock-absorber comprising a frusto-conical rubber bush 17 located between a connector member 16 and a tup 10 such that in use the bush is subjected to combined compression and shear. The hammer may be operated by fluid pressure and the two tups 10, 24 are interconnected by a laminated belt 25 with strips of paper and a lubricant between the laminations. A guard 39 prevents hot scale from contacting the belt. Each end of the latter is secured to a rod 14, 22 passing through a hardened steel insert 18, 28 of a connector 16, 29 respectively. The upper rod 14 has a nut 19 with a spherical seating 21, locked to the rod by a clamp nut 20 and also by a pin; the lower rod 22 has a nut with a knife edge 27 engaging the insert 28. A scale deflector plate 30 is provided on rod 22 or a flexible deflector may be attached to the tup 24 closely embracing the rod. A metal sleeve may be provided around the rubber bush. In another embodiment, Fig. 2 (not shown), the bush fits into an outer housing which is located in a shallow recess in the tup. Where both tups are inconnected by hydraulic means, shock absorbers are provided between the tups and hydraulic rams.
Patent GB-1533849-A (GB)
Title: Device for an iterative determination of the variation of a function in a plane
IPC: G06E3/00
Filed: 1975-09-19
Abstract: 1533849 Radiography PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 Sept 1975 [24 Sept 1974] 38589/75 Heading H4F A system for iteratively determining the variation of a function over a plane from measured values of the function integrated over a large number of strips scanning the plane from different orientations, an example being in computed tomography, comprises a cathode ray tube 1 having a charge storage screen 2 on which the function is stored initially as the measured values of individual strip integrals, the target then being integrally read along each strip and the read integral compared at 10 with the corresponding measured integral from a store 11, the difference between the two integrals divided at 12 by the strip length being then used to apply a signal to the tube grid 15 to reduce the difference between the two integrals, the reading and correction being repeatedly carried out over all the strips to achieve successively better approximation to the true form of the function. Positive and negative differences between the integrals are corrected by using the property of storage targets that they simply absorb low energy electrons and thus become more negative whereas higher energy electrons release a plurality of electrons and the target thus becomes more positive. However in Fig. 2a (not shown) this problem is avoided by using two synchronously scanned storage tubes one of which takes positive differences and the other, via an inverter, takes negative differences, the read-outs from the tubes being subtracted in a differential amplifier to obtain an output signal. In Fig. 2b (not shown) a video display tube is optically coupled to a tube which receives an optical image input and has a charge storage dielectric mirror output screen illuminated by linearly polarized light, the modulated reflected beam being received by a camera tube. In Fig. 3 (not shown) the basic circuit of Fig. 1 is modified to use the maximum dynamic range of the storage tube by providing an external store which receives data extracted from the tube which is corrected then and the new data is subsequently returned to the tube circuit and used in the processing.
Patent GB-942063-A (GB)
Title: Polyurethane prepolymers, methods of producing polyurethane foams therefrom, and the foams thus produced
Inventor: SATTERLY KENNETH POMEROY
IPC: C08G18/48
Filed: 1959-11-13
Abstract: A non-linear polyurethane prepolymer adapted for formation of polyurethane foam comprises the reaction product of a non-linear hydroxyl-terminated polyether, formed by condensing an alkylene oxide with a trihydric alcohol and having a molecular weight within the range from 1200 to 6400, and an organic diisocyanate present in an amount exceeding that required for reaction with the hydroxyl-terminated polyether and such as will give rise to foam formation upon addition of water. As the trihydric alcohols there are spefified glycerol, hexanetriol -1,2,6, 2,2- dihydroxy-methyl -1- butanol, 2,2-dihydroxy-ethyl butanol and the triol of the formula HOCH2 CH2OCH2C (CH3) (CH2OH) CH2CH-(CH3) CH2OH. The prepolymer may also contain an anti-oxidant, such as 2,6- ditbutyl -4- methylphenol and an antifoam agent such as a siloxane of the formula (CH3)3Si[OSi(CH3)2]n OSi-(CH3)3 where n is an integer from 0 to 2000. Dyestuffs, pigments, sulphur or sulphur-containing materials can be incorporated. Reference is also made to using phosgene and diprimary amines or biscarbamyl chlorides in place of diisocyanates in preparing the prepolymers. The prepolymer is converted to a foam by reaction with a material having ionizable hydroxyl groups, such as water or succinic acid, suitably in the presence of an accelerator such as methylpiperidine, tribenzylamine or pyridine.  In examples prepolymers are prepared by reacting (1) glycerol/propylene oxide reaction product (M.W. 4000), and toluene diisocyanate in the presence of 2,6- di-t-butyl-4-methyl phenol; (2) glycerol/propylene oxide reaction product (M.W. 3000) successively with 3,31-bitolylene -4,4-1 diisocyanate and toluene diisocyanate. Conversion to foam products is effected by adding a mixture of water, N-methylmorpholine and triethylamine.
Patent GB-1438379-A (GB)
Title: Cooling arrangement for duct walls
IPC: F23R3/10
Filed: 1973-08-16
Abstract: 1438379 Gas turbine &c. combustion chambers ROLLS-ROYCE (1971) Ltd 29 July 1974 [16 Aug 1973] 38812/73 Heading F1L Cooling air is introduced into a gas turbine flame tube, or other hot fluid duct, via a strip 23, 24 secured to the interior of wall 17 and having two rows of pockets 22, the outlet openings of the pockets of one row facing in the opposite direction to those of the other row and being inter-digitated therewith so as to discharge cooling air-streams 25 in the respective directions. These air-streams are augmented by further annular streams 28 flowing through the gaps 27 between the edges of strip 23, 24 and wall 17. The latter has apertures 21 through which the cooling air flows to the pockets 22 &c. When applied to a flame tube, the strip 23, 24 is disposed in the upstream region thereof adjacent oppositely rotating vortices (16, 19) Fig. 1 (not shown).
Patent GB-368437-A (GB)
Title: Improvements in the catalytic manufacture and production of hydrocyanic acid
IPC: C01C3/02
Filed: 1930-12-24
Abstract: Hydrocyanic acid is produced by leading vapours of formamide, or formamide and ammonium formate, through melts of lead, tin, bismuth, or alloys thereof such as Wood's or Rose's metal, at temperatures of about 300-600 DEG  C.  The vapours may be introduced in a state of fine dispersion, together with carrier gases such as ammonia, nitrogen or carbon monoxide, while reducing the pressure above the melts.  The necessary thickness of the melt depends on the size of the bubbles of vapour, and should be as small as possible. Hydrocyanic acid may be recovered by cooling or absorption in caustic soda, after separation of undecomposed formamide.  According to an example, the formamide may first be led in known manner through an iron tube filled with borings. Specification 269,166, [Class 1 (ii), Inorganic compounds, other than &c.], is referred to.
Patent GB-1091110-A (GB)
Title: Ironing pad
IPC: D06F83/00
Filed: 1966-08-31
Abstract: 1,091,110. Coated sheet material. "WIDEMEX N.V". Aug. 31, 1966 [Sept. 1, 1965], No. 38940/66. Heading B2E. [Also in Division Dl] An ironing pad 2 is made of glass textile tissue 3 covered with polytetrafluoroethane 4 and the remainder of the cover is formed of cotton cloth 7 covered with a plastics lacquer 8 impregnated with metal particles. The two parts are seamed together at 6 and a cotton layer 9 is provided below the pad 2 and a sponge plastics layer is provided 'below the cloth 7. In a second embodiment additional layers of glass fibre and asbestos paper may be provided under the pad 2. An aluminium sheet can be used under the pad 2 in such a way as to provide an air space between the aluminium and the ironing board.
Patent GB-1589854-A (GB)
Title: Production of carboxylic acids
IPC: C07C51/08
Filed: 1977-09-20
Abstract: Carboxylic acids are obtained by hydrolysing an aromatic or heterocyclic nitrile, or an intermediate hydrolysis product thereof, with water in the vapour phase in the presence of a solid acidic catalyst. The gaseous reaction product formed contains the desired carboxylic acid, which can be obtained therefrom by, for example, sublimation. The process yields very pure products.
Patent GB-1477676-A (GB)
Title: Fuel injection nozzle
IPC: F02M61/18
Filed: 1974-09-09
Abstract: 1477676 IC engine fuel injector AMBAC INDUSTRIES Inc 9 Sept 1974 [10 Sept 1973]  39241/74 Heading F1B A fuel injection nozzle comprises a valve needle 22 co-operating with a frusto-conical valve seat 30, spray orifices 34 extending outwardly from a sac 32 below the valve seat, and means for introducing pressurized fuel into the nozzle bore 24 above the valve seat, the lower end of the needle having a circular control edge 50 formed by the intersection of two surfaces of revolution and defining in co-operation with the valve seat the minimum fuel flow area between the needle and the valve seat when the valve is fully open. The control edge 50 is defined by the junction between a frusto-conical surface 44 and a conical surface 48, the included angle A of the latter being greater than the included angle V of the former, which in turn is greater than the included angle B of the valve seat. The sac 32 is preferably conical rather than cylindrical, to reduce the amount of fuel trapped in the sac and subsequently escaping unburnt to the engine exhaust.
Patent GB-894488-A (GB)
Title: Improvements in table ball games
IPC: A63F7/24
Filed: 1960-11-16
Abstract: 894,488. Table games. KARTONAX G.m.b.H. Nov. 16, 1960 [March 3, 1960; April 12, 1960], No. 39300/60. Class 132(2) In a table ball game, upright figures are pulled down and released to flick the ball over the playing surface to which they are resiliently and releasably attached by suction cups. The figures may be mounted, in depressions in the playing surface. As shown, figure 21 has a disengageable spigot and socket connection with suction cup 18. Reference is made to a hollow rubber figure having its interior in communication with the space beneath the suction cup. This figure is squeezed as it is applied to the playing surface to increase the amount of suction. If the figures are not mounted in depressions in the playing surfaces, they have ball striking members extending from above their resilient mountings nearly to the surface. Conical, hemispherical and hemiellipsoidal suction cups are referred to.
Patent GB-835581-A (GB)
Title: Improvements in the flame-proofing of cellulose textile materials
Inventor: WARD FRANK
IPC: D06M13/292
Filed: 1956-12-31
Abstract: Cellulose textile materials are flameproofed by impregnating them with an aqueous solution of a water-soluble aminoplast resin precondensate and a water-soluble phosphoramidate ester of the general formula (RO)2 : PO NH2, in which R is an halogen-substituted alkyl radical, drying and baking them.  The resin may be urea-formaldehyde, melamineformaldehyde, thio-urea-formaldehyde or mixtures thereof and may be used as precondensate or a mixture of the resin-forming ingredients. Esters that may be used are bis-2-chloroethyl phosphoramidate, and the corresponding chloromethyl and chloropropyl esters.  A water-soluble catalyst for the resin condensation, e.g. borolactic acid, ammonium phosphate or magnesium chloride, may be included in the solution.  According to the Provisional Specification, esters in which R is an alkyl radical may be used. Specification 765,222 is referred to.
Patent GB-811245-A (GB)
Title: Improvements in or relating to power gas generating cartridges for the actuation of engine starters
Inventor: STEWART MALCOLM GORDON
IPC: F02C7/272
Filed: 1956-12-31
Abstract: 811,245. Engine - starter cartridges. IMPERIAL CHEMICAL INDUSTRIES Ltd. Nov. 27, 1957 [Dec 31, 1956], No. 39623/56 Class 9(1) An engine - starter cartridge 10 is provided with a waterproof closure comprising a rigid skirted portion 19 to which is stuck a disruptible portion 22 spaced from the charge 11 by a member 25 having legs 26 which bear against the rigid portion 19. The case 10 may be of brass and the combustible charge 11 may be a nitrocellulose - nitroglycerine composition spaced from the case by legs 12 and studs 13 of the same or a modified composition. The igniter 15 may contain fine grained black powder and above it is a thinwalled bag 17 containing an igniting composition, e.g. coarse grained black powder. Specification 707,611 is referred to.
Patent GB-900535-A (GB)
Title: Improvements in and relating to washing machines
IPC: D06F13/08
Filed: 1958-12-10
Abstract: 900,535. Washing-machines. PHILCO CORPORATION. Dec. 10, 1958 [Dec. 12, 1957], No. 39828/58. Class 138 (2). In a washing-machine a rotary drive shaft 20 extends through an aperture 19 in the base of a washing tube 12 and is connected to a vertically extending column 34 the upper part of which is centred on the tube axis and the lower portion is disposed eccentrically so that an agitator 31, 33 linked to the column is given a wobbling movement about a plane transverse to said axis when the column is given a gyratory movement by the drive shaft 20. The shaft 20 is connected to an obliquely mounted crank 21 rotatably journalled in bearings 23 and a ball-bearing 25 is interposed between the crank and the agitator support 26 so that rotation of shaft 20 produces a gyratory motion in crank 21 which then imparts the wobbling motion to the agitator support 26. The crank 21 extends to a shaft 35 on which the column 34 is freely journalled by means of sleeve 37, collars 38 and 39 and the column is sealed and anchored to the agitator assembly by a flexible boot 40. The column 34 is inclined to the vertical so that the top of the column is coincident with the axis of rotation of the washing tub and is level with the surface of the wash water. As shown in Fig. 1, the washing machine comprises a fixed tube 11 enclosing a dual walled rotatable wash tub 12 comprising a foraminous inner shell 14 and an imperforate casing 15. A flexible diaphragm 28 seals the casing and prevents relative movement between the tub and the agitator which comprises a flexible flipper 31 mounted between plates 29 and 30 and secured to a base-plate 27 and a flat or moulded flexible disc 33 clamped to the convoluted upper surface of the pedestal 32 and secured to the plate 30.
Patent GB-1077119-A (GB)
Title: Sulfhydryl resins
IPC: C08L63/00
Filed: 1965-09-17
Abstract: Epoxy resins are cured by secondary curing agents which are polythiols obtained by the reaction of H2S with (A) a vicinal epoxyalkyl ester of a dimerized fat acid or a hydrogenated dimerized fat acid of the formula D(CO2H)2 or (B) a vicinal epoxyalkyl ether of a corresponding alcohol of the formula D(CH2OH)2, where D is the divalent hydrocarbon radical of the dimeric fat acid or hydrogenated dimeric fat acid, using at least one mole of H2S per oxirane equivalent. Catalysts such as amines, polyamines, polyaminoamides, polycarboxylic acid anhydrides and BF3.ALSO:Polythiols are derived by the reaction of H2S with (A) a vicinal epoxyalkyl ester of a dimerized fat acid or a hydrogenated dimerized fat acid of the formula D(CO2H)2 or (B) a vicinal epoxyalkyl ether of a corresponding alcohol of the formula D(CH2OH)2, where D is the divalent hydrocarbon radical of the dimeric fat acid or hydrogenated dimeric fat acid, using at least one mole of H2S per oxinone equivalent.  The epoxy compounds are derived from any saturated or unsaturated synthetic or natural monobasic, aliphatic C8- 22 acid.  In the examples, polythiols are prepared from the diglycidyl ester of dimeric tall oil fatty acids in the presence of (1) cyclohexane and NaOMe, (2) NaOMe, and (3) trisdimethyl-amino-methylphenol (added halfway through the reaction), and from the diglycidyl ether of the diol corresponding to dimeric tall oil fatty acids in the presence of NaOMe.  The diglycidyl ether of the diol corresponding to dimeric tall oil fatty acids is prepared by dehydrohalogenating the bischlorohydrin ether with NaOH in epichlorohydrin in the presence of water.  The bischlorohydrin ether of the diol corresponding to dimeric tall oil fatty acids is prepared from the diol by reaction with epichlorohydrin in the presence of BF3 etherate.  The diol derived from dimeric tall oil fatty acids is prepared by reducing in known manner the 4-methylpentan-2-yl ester of the dimer acids.  The 4 - methylpentanyl - 2 - ester of dimeric tall oil fatty acids is prepared by esterifying the dimer acids with 4-methylpentan-2-ol in toluene in the presence of p-toluenesulphonic acid.
Patent GB-1136969-A (GB)
Title: Arrangements for indicating the position of zero amplitude of oscillations
IPC: G01D5/36
Filed: 1966-09-07
Abstract: 1,136,969. Position finding. ERNST LEITZ, G.m.b.H. 7 Sept., 1966 [9 Sept., 1965], No. 39951/66. Heading G4H. [Also in Division H4] Apparatus for indicating the point of zero amplitude of a light beam relative to a reference point includes a member having division markings and one or two reference markings, a photocell behind the member sensing the movement of the light beam. In one embodiment (Fig. 1) a transparent plate 14 is rotated through an angle representing the magnitude to be measured and a slotted diaphragm 13 is then reciprocated in front of a light source 10 so that the light beam after refraction by the plate 14 reciprocates over a grating 15, a photo-cell 17 supplying pulses to a counter 18 as the beam passes over the division markings 15a. The direction of count is changed each time the beam passes over a reference marking 16 so that the count in the counter 18 represents the angle through which the plate 14 is turned. In a second embodiment a diaphragm 23 (Fig. 2) with a pin hole 24 is connected to an object to be measured. A light beam from a source 21 passing through the hole 24 is reflected by a rotating swash mirror 27 so that it traces out a closed path on a coded disc 28. A photocell behind the disc transmits pulses as the light moves over gratings 29-32 to one of two counters 39, 40 under the control of a bi-stable device 37 which is alternatingly set and reset as the light beam moves over reference markings 33, the direction of count being controlled by a further bi-stable device 41 controlled from the first bi-stable device. The count in the counters 39, 40 represents the x and y co-ordinates of the position of the hole 24. The light source and pin hole may be replaced by a self-illuminating source, e.g. a star or by a spot of luminescent material on the diaphragm.
Patent GB-1235239-A (GB)
Title: A herbicidal composition
IPC: F16L21/035
Filed: 1969-08-11
Abstract: 1,235,239. Herbicides containing fluoropropionic acids or derivatives thereof. DAIKIN KOGYO CO. Ltd. 11 Aug., 1969 [9 Oct., 1968], No. 40139/69. Heading A5E. A herbicidal composition comprises a fluoropropionic acid of formula: wherein X is Cl or F, or a salt, ester or amide of said acid, and one or more herbicides selected from dinitroaniline derivatives, carbamate derivatives, quaternary ammonium derivatives, chlorinated aliphatic acids and their derivatives, aminotriazole derivatives, diazine derivatives and triazine derivatives. Particular herbicides specified are trifluralin, nitralin, benfluralin, propham, phenmedipham, diquat, paraquat, dalapon, sodium monochloroacetate, amitrole, pyrazon, bromacil, simazine and atrazine.
Patent GB-1066316-A (GB)
Title: Improvements in and relating to electrodes
IPC: H01M4/88
Filed: 1963-10-11
Abstract: A porous oxygen electrode containing a silver catalyst is formed by sintering a compacted powder mixture of a silver compound, which is heat resistant at sintering temperature, and a metal or metal compound and then reducing the silver compound to silver.  The silver compounds are the halides and phosphates and the metal powders may be Ni, Cu-Ni or Ni with a surface oxide coating, or NiO powder. A pore forming powder such as (NH4)2 Co3 or NaCl may also be added to the mixture, the carbonate being removed during heating and the chloride leached out before or after sintering.  Sintering is carried out in an inert gas or hydrogen below the melting temperature of the silver compound and if NiO powder is added sintering is effected below 500 DEG C.  The final reduction is carried out by chemical reduction in aqueous solution or in gaseous hydrogen or preferably electrochemically in acid or alkaline solution.
Patent GB-1105886-A (GB)
Title: Compositions containing vinyl or vinylidene polymers, and the preparation thereof
IPC: C08G63/54
Filed: 1966-09-09
Abstract: A composition comprises at least one vinyl or vinylidene polymer and, as a polymerizable plasticizer, an unsaturated polyester derived from at least one mono-olefinic dicarboxylic acid, at least one aromatic dicarboxylic acid, at least one diol and at least one mono-functional esterifiable reactant.  Preferred polymers are polyvinyl chloride, polymers of vinyldene chloride, vinyl acetate or vinyl chloride and vinyl acetate, and copolymers of vinyl halide monomers.  In the Examples are used: as the mono-olefinic dicarboxylic acid: fumaric, maleic itaconic, citraconic, and glutaconic acids and maleic anhydride; as aromatic dicarboxylic acid: phthalic anhydride, isophthalic, naphthalic and diphenic acids; as diol: 1,2 propylene glycol, 1,3-butylene glycol, hexylene glycol, neopentyl glycol, 2,2,4-trimethyl pentylene glycol, diethylene glycol, triethylene glycol, dipropylene glycol, 2,3-butylene glycol and 1,4-pentylene glycol; as mono-funcional reactant: 2-ethyl hexanol, 2-ethyl butanol, n-decyl alcohol, n-heptyl alcohol, phenyl ethyl alcohol, benzyl alcohol, 2-ethyl hexanoic acid, benzoic acid, caproic acid, butyric acid, heptanoic acid, pelargonic acid and decenoic acid, A saturated aliphatic dicarboxylic acid may also be included and in the Examples are used; azelaic, adipic, sebacic, succinic, and pimelic acids.  The composition may also include a reticulation agent comprising a monomeric allyl or vinyl compound or a pre-polymer thereof and in the Examples are used:  diallyl o- and i-phthalate, diallyl adipate, triallyl citrate, vinyl benzoate and divinyl toluene.  The conventional plasticizer used in the Examples is di-2-ethylhexyl azelate, the catalyst used is tert-butyl perbenzoate and the stabilizer dibasic lead phthalate.