baber/WOPTO huggingface dataset:
Patent GB-1529589-A (GB)
Title: High molecular weight polytriazines of soluble polymeric n-cyano-isourea ethers
IPC: C08G73/06
Filed: 1976-07-22
Abstract: 1529589 Polytriazines BAYER AG 22 July 1976 [24 July 1975] 30592/76 Heading C3R Polytriazines are obtained by reacting at elevated temperatures (A) a cyanamide of formula where R is an aliphatic, cycloaliphatic, heterocyclic or aromatic radical optionally interrupted by an oxygen atom and n is from 2 to 5, with (B) an aromatic cyanic acid ester of formula where Ar is an aromatic radical optionally interrupted by a bridge member and p is from 2 to 5, to form a prepolymer which is heated to form a high molecular weight prepolymer. A catalyst may be present in the reaction. In examples prepolymers are obtained by reacting hexamethylene di-N-cyanamide with bis-2,2-(4- cyanatophenyl)-propane and with resorcinol dicyanate, by reacting 4,4<SP>1</SP>-di-N-cyanamido diphenyl methane with bis-2,2-(4-cyanatophenyl)-propane, with hydroquinone dicyanate and with 4,4<SP>1</SP>-dicyanato diphenyl sulphone, by reacting bis-2,2-(4-cyanamidophenyl)-propane with bis-2,2-(4-cyanatophenyl)-propane, by reacting 3,3<SP>1</SP>-dimethyl-4,4<SP>1</SP>-di-N-cyanamido diphenyl with 4,4<SP>1</SP>-dicyanato diphenyl, by reacting 3,3<SP>1</SP>-dichloro-4,4'-N-cyanamido diphenyl methane with bis-2,2-(4-cyanato-phenyl)-propane, by reacting 1,5-di-N-cyanamido naphthalene with 1,5-dicyanato naphthalene, by reacting 4,4<SP>1</SP>-di-N-cyanamido diphenyl ether with bis-2,2-(4-cyanatophenyl)-propane, by reacting 4,4<SP>1</SP>-di-N-cyanamido diphenyl sulphone with bis - 2,2 - (3,5-dimethyl-4-cyanatophenyl)- propane, by reacting 4,4<SP>1</SP>-di-N-cyanamido dicyclohexyl methane with bis-1,1-(4-cyanatophenyl)-cyclohexane, by reacting bis1,1(4- cyanamidophenyl)-cyclohexane with bis-1,1- (4-cyanatophenyl)-cyclohexane and by reacting 4,4-di-N-cyanamido dimethyl methane with 1,3,5-tricyanato benzene; the prepolymers are converted to hard polytriazines by further heating.
Patent GB-772331-A (GB)
Title: Method for the manufacture of a dialkylnitrosoamine
Filed: 1955-10-26
Abstract: Dialkylnitrosamines are prepared by reacting an excess of a dialkylamine with nitric oxide and oxygen under alkaline conditions to produce a liquid product containing both the desired dialkylnitrosamine and the corresponding dialkylammonium nitrite, and if desired heating the liquid product (preferably to between 120 DEG and 140 DEG  C.) whereby said nitrite is converted to the dialkylnitrosamine.  The dialkylamine, nitric oxide and oxygen may be reacted in a vapour phase or a liquid phase provided by an aqueous or non-aqueous solvent.  Dialkylamines are preferred as the solvent. The reaction may be carried out at atmospheric or superatmospheric pressure, the gases being preferably combined in such order that oxidation of the nitric oxide occurs in presence of the dialkylamine. Air may be used as the source of oxygen and is preferably introduced in the theoretical proportion required to produce nitrous anhydride with the nitric oxide.  The nitric oxide may be obtained by the catalytic oxidation of ammonia with air.  Specified dialkylamine reactants are dimethylamine, methylethylamine, diethylamine, methylpropylamine, diisopropylamine, dibutylamine and diamylamine. In a modification of the above process a mixture of dialkylamine and trialkylamine is used as a reactant and this mixture is also passed through the heated liquid product.  The dialkylamine component reacts with the trialkylammonium nitrite present in the liquid product to give dialkylnitrosamine and trialkylamine, and the trialkylamine evolved is subsequently reacted with ammonia to give a further quantity of dialkylamine.  The examples describe the preparation of dimethylnitrosamine.
Patent GB-1505475-A (GB)
Title: Aeration of ground water in wells
IPC: C02F3/20
Filed: 1976-07-22
Abstract: 1505475 Dispersing gases in liquids SULZER BROS Ltd 22 July 1976 [23 July 1975] 30632/76 Heading B1C [Also in Division E1] Ground water enters a well 3 through horizontal pipes or catchment tubes 1 and passes from an entry zone 2 to a removal zone 10 through a duct 12 in which is at least one static mixing element 14, there being a compressed air inlet adjacent to and upstream of the mixer 14. The mixer may be of the type in which corrugated plates are arranged in a stack with their corrugations vertically at right angles and at 45‹ to the vertical axis of the duct 12, as described and claimed in the Specification 1373142 (and see also Fig. 2, not shown). The individual plates may be of different sizes to form a cylindrical member fitting in a circular duct 12.
Patent GB-1392961-A (GB)
Title: Needle bearing
IPC: F16C19/46
Filed: 1972-06-30
Abstract: 1392961 Bearings NADELLA and A PITNER 30 June 1972 [17 Aug 1971] 30658/72 Heading F2A A needle bearing cage constructed from a single piece of sheet metal has apertures with end faces provided with projecting portion 7 of convex shape serving as bearing faces, for needles 2 with plane ends 2a, and means 3 for  retaining each needle in at least one direction radially of the needle. The cage may be constructed for a radial or an axial bearing.
Patent GB-1360833-A (GB)
Title: Vehicle suspensions
IPC: B60G11/22
Filed: 1971-07-01
Abstract: 1360833 Rear axle suspensions EUCLID Inc 1 July 1971 [6 July 1970] 30958/71 Heading B7D [Also in Division F2] A spring unit, e.g. for connection between a vehicle frame and a rear axle housing 40, has a piston 74 reciprocable in a sleeve 72 against the compression of a resilient member 78 (such as a stack of elastomeric pads) in the sleeve, the latter being mounted in a housing 70 in which at least one resilient (e.g. elastomeric) member 134 is located between the side walls 84, 88 of the housing and sleeve to resist lateral forces and tend to centralize the sleeve 72 in the housing 70. A gudgeon pin 152, in a spherical bearing 156 in a piston-rod 154 fixed to the axle housing adjacent a road wheel assembly, connects the rod 154 to the piston skirt 150. A radius arm 52 interconnecting the axle housing 40 and adjacent part of the vehicle frame 20 together with one of the spring units forms the suspension system for one wheel assembly. The spring unit is of rectangular shape and the sleeve 72 comprises four plates (two opposing plates 122, 126, being shown) each separately movable to or from the adjacent wall of the enclosing housing 70, being mounted between a bottom clamp 128 and the top wall 80, 110, 112 of the housing 70. The elastomeric members 134 are fixed on plates 133 which engage the sidewalls 84, 88 of the housing 70 and which are held on associated sleeve plates 122, 126 by studs 135, screwed into the sleeve plates and extending freely through large holes in the plates 133 and housing sidewalls to allow the sleeve plates to move towards and away from the sidewalls. Three of the four sidewalls of the housing 70 are formed by plates of the vehicle frame and the other, 88, is a plate extending between frame plates.
Patent GB-916388-A (GB)
Title: Pre-loaded ball joint assembly
IPC: F16C11/06
Filed: 1959-09-11
Abstract: 916,388. Ball-Joints. AMERICAN METAL PRODUCTS CO. Sept. 11, 1959 [Sept. 19, 1958], No. 31027/59. Class 65 (2). During manufacture of a ball-joint, hardenable material 24 is disposed within the socket, moulded around part of the ball surface, and hardened, and separate resilient means 48 is provided with the socket for continuously exerting a force on another part of the ball surface to maintain the ball pressed towards the hardenable material during the life of the joint. The resilient means may be a body of rubber or like resilient material or a coil spring, and the hardenable material may be any relatively lowfriction material that can be injected or otherwise positioned in the socket and moulded around the ball. Preferably, the socket comprises stampings 38, 40, the former having a cylindrical wall portion 50 which encloses the resilient material 48 and approaches close to the surface of the ball so as to leave only a small portion of the material 48 exposed to the space occupied by the hardenable material 24. The surface of the ball may be provided with a chrome or other suitable finish and a layer of low-friction material, e.g. polytetrafluoroethylene or nylon, may be disposed between the dome of the ball and the resilient material 48 and may be bonded to the latter. Alternatively, the surface of the ball may be covered by a layer 46 of low-friction material, preferably in the form of a boot comprising a layer of woven P.T.F.E. cloth interwoven at spaced points with a layer of cotton cloth to the exposed face of which is bonded a thin layer of resin material which acts as a barrier to prevent the penetration of the hardenable material through to the P.T.F.E. cloth and also bonds the hardenable material to the cotton cloth. In a modification a ring of resilient material is disposed adjacent the throat 58 of the socket.
Patent GB-1256335-A (GB)
Title: Improvements in the treatment of leather
IPC: C14C9/00
Filed: 1970-06-26
Abstract: 1,256,335. Proofing leather. HENKEL & CIE G.m.b.H. 26 June, 1970 [27 June, 1969], No. 31060/70. Heading DIP. [Also in Division C6]  Leather is impregnated with a composition which comprises a solution of: A a condensation product of an aluminium alcoholate of a lower monoalcohol of chain lengths C 1  to C 4  with a phosphoric acid monoester of a higher fatty alcohol of chain lengths C 12  to C 20 , and B. a fluoro-carbocyclic acid or an ester thereof, or a fluoro-alcohol or an ester, ether or acetal thereof, which has a fluorinated lipophile residue having a chain length of C 8  to C 20 , in an organic solvent. The solvent is preferably a gasoline fraction having a boiling range of 60 to 200 degrees C, ethyl acetate, butyl acetate, trichloroethylene or toluene. In a preferred example component A comprises a reaction product of 1 mole of aluminium isopropylate and 0.7 to 1.5 moles of a monoalkyl phosphoric acid ester mixture of chain lengths C 12  to C 18 , dissolved in perchloroethylene, and component B is a mixture of perfluorooctane carbocylic acid and a methacrylic acid ester of a fluorinated unsaturated fatty alcohol mixture having an average chain length of C 8 , dissolved in methyl chloroform. The two components may be mixed in various proportions such that the proportion of component B is in the range 5 per cent to 90 per cent by weight, preferably between 10 and 50 per cent by weight. The composition may additionally include a stabilizer, e.g. acetyl acetone or ethyl acetoacetate, and may further include dimethyl polysiloxane, or/and a wax, resin or. dye. The composition may also be varied by replacing part of the phosphoric acid monoester in component A with a corresponding phosphoric acid diester.
Patent GB-1087136-A (GB)
Title: Improvements in or relating to the manufacture of capacitors
Inventor: FORTE STEPHEN SAMUEL
IPC: H01G4/10
Filed: 1963-08-07
Abstract: 1,087,136. Capacitors. MARCONI CO. Ltd. April 29, 1964 [Aug. 7, 1963], No. 31098/63. Heading H1M. A capacitor is constructed by vacuum chamber depositing a thin film electrode of gold on an insulating substrate, depositing thereon a layer of tantalum to the thickness of the required dielectric, heat oxidizing in the presence of a small quantity of oxygen to convert the tantalum layer to oxide, and depositing thereon a further gold film electrode without removal from the chamber. The electrode layers may be copper, and the tantalum layer may be replaced by niobium, zirconium, lanthanium, titanium.
Patent GB-465772-A (GB)
Title: Improvements in and relating to jewellery and the setting of precious stones and the like
IPC: A44C17/04
Filed: 1936-11-14
Abstract: 465,772. Jewellery. GUERIN ET GUERIN FRERES, A., GUERIN, J., and GUERIN, H. Nov. 14, 1936, No. 31207. [Class 43] A setting for precious stones comprises partitions 7, 8 with grooves 12, 17 forming flanges at the upper edges. The stone 1 is provided with grooves 4, 5 and after it has been inserted between the partitions the flanges are swaged into the grooves. The edge 3 of the stone overhangs the groove to hide the setting. A pavement of stones can be built up between partitions as shown in Fig. 5, alternate stones 28 being provided with grooves and the edges of the stones 30, 31 fitting into the grooves above the swaged over flanges 29 of the partitions. The transverse partitions 26, 27 may be of thinner metal and of reduced height. A series of asymmetrical stones may be set and each stone have a groove in one side only.
Patent GB-262598-A (GB)
Title: Improvements in and relating to electrical testing
IPC: G01R1/28
Filed: 1925-12-10
Abstract: 262,598. Shotter, G. F. Dec. 10, 1925. Electric and magnetic.-For testing the errors of a current transformer two separate watt-hour meters are employed, the spindles p, q being geared to a differential movement u, the indicator v of which indicates the differences between the speeds of the spindles. Compensation of torque in order to arrive at a nul movement of the pointer v is provided by adjustable magnetic shunts w, y. Movement of these shunts is effected by discs 2, 3. 4, 5 calibrated for directly indicating the percentage error. A further magnetic shunt 6 is provided to enable an exact balance to be achieved between the torques of the two elements themselves. Alternatively calibrated movement of the brake magnets may be employed.
Patent GB-745492-A (GB)
Title: Improvements in and relating to prefabricated building elements
IPC: E04C2/04
Filed: 1953-11-12
Abstract: 745,492. Building slabs; walls; floors. MICHELIER, J. P. Nov. 12, 1953 [Nov. 14, 1952], No. 31345/53. Classes 20(4) and 87(1). [Also in Group V] A wall or floor slab 1 or 1a is formed by casting a reinforced concrete shell 3, 4 around three faces of a number of hollow terra cotta or plaster blocks 12 arranged end to end and formed on their side faces with re-entrant or projecting angles 41. The outer side faces of the concrete shell may be formed with similar angles 40 or may be stepped as shown in Fig. 7. The side faces of the slabs may be formed with V-shaped or semi-circular grooves 42 and with edge recesses 54. Concrete 10 or 50 may be cast between adjacent slabs and panels 15 attached to the wall or floor. The wall slabs are set on a footing block and a reinforced concrete beam is cast across their upper ends. Blocks with inclined upper surfaces leading to small holes in the slabs are arranged below the concrete 10 for drainage purposes.
Patent GB-677278-A (GB)
Title: Improvements in the production of iron and the like
IPC: C21B5/00
Filed: 1949-12-07
Abstract: 677,278. Blast furnace process. KOPPERS CO.. Inc. Dec. 7, 1949 [Dec. 7, 1948], No. 31420/49. Class 72 [Also in Group XII] In order to prevent freezing up in a blast furnace operating with a blast containing more than 30 per cent oxygen, the tuyeres are spaced closer together than in normal practice, e.g. at a distance of less than 1.1 metres and preferably 0.3-0.6 meters apart, and, in addition to the oxygen, carbon monoxide or a mixture of carbon monoxide and hydrogen or carbon monoxide and gaseous hydrocarbons is supplied through the tuyeres. Dotted lines 20, indicate the extent of the fusion zone round the mouths of the tuyeres using oxygen alone and the corresponding lines 22 indicate the extension of the fusion zone obtained by the addition of carbon monoxide &c. to the blast.
Patent GB-777428-A (GB)
Title: Improvements in or relating to methods for the biological or therapeutic treatment of matter, and for carrying out chemical reactions
IPC: H01J33/00
Filed: 1953-10-12
Abstract: In a method for the biological or therapeutic treatment of matter or for the carrying out of a chemical reaction by bombardment with a beam of high energy electrons or other charged particles, the beam is brought out from a vacuum chamber under pressure of e.g. less than 10-2 mm., to a working chamber under atmospheric pressure, through one or more chambers under increasing pressures.  The vacuum and intermediate chambers are connected to pumps, and the beam passes through fine apertures between chambers.  The apparatus is described in Specification 777,426 (see Groups XL(c) and III).  The apparatus may be used for sterilization of food or for promoting chemical reactions between gases, liquids and solids, and may involve ions of the beam e.g. protons or oxygen ions.  The beam may also be used for the supervision of the chemical reaction initiated or maintained by it.  Conclusions e.g. as regards partial pressures may be drawn from the diffusion of the beam.  Specification 777,427 [Group XL(a)] also is referred to.
Patent GB-625658-A (GB)
Title: Improvements in or relating to milling of cereal grain
IPC: B02C9/04
Filed: 1945-11-22
Abstract: 625,658. Treating grain. CARTER. R. J. S. Nov. 22, 1945, No. 31505. [Class 58] [Also in Group XXVI] In a process of milling wheat or rye grain the cleaned and conditioned grain berries before grinding which may be first . lightly cracked are subjected to an impacting action as by being flung centrifugally at high velocity against an impacting surface to break away the germ in substantially whole form without it being ground to any appreciable extent and thereafter removing the fines (such as pass through a 32 mesh screen) and the largest particles (such as are retained on an 18 mesh screen), and subjecting the said largest particles to preliminary grinding and separating germ contained therein from such ground particles, crushing such separated germ and the remainder of the impacted grain containing the majority of the germ, to flatten the germ while breaking up remaining endosperm to a greater extent, and sifting the flattened germ from the crushed portions of the berries which may be flaked and then sifted. The impacting may be done in an impacter comprising a hollow casing 11 in which a circular disc 14 attached to a driving shaft 9 has attached to it an annular disc 16 and between the discs a series of vanes 17 by means of nutted bolts 18. The disc 16 has a conical flaring mouth 16a into which the grain is fed by chute 22 and is flung centrifugally by the revolving discs and vanes, against transverse corrugations on the face of an impactor ring 19 secured in concentric relation with respect to the discs and is then discharged at 12.
Patent GB-729674-A (GB)
Title: Improvements in screen stencil printing machines
IPC: B41F15/42
Filed: 1952-12-13
Abstract: 729,674. Stencilling-machines. McLAURIN, J. N. May 27, 1953 [Dec. 13, 1952], No. 31653/52. Class 100 (2). In a stencilling machine of the kind in which a flexible squeegee is reciprocated over the screen to press the colour through, the squeegee being lifted clear of the screen at the end of the printing stroke, and during the return non- printing stroke, the squeegee is rocked as it lifts at the end of the printing stroke so as to sweep colour in front of it, the squeegee moving into a position in which its front face retains and carries back some of the colour on the return stroke, the squeegee being rocked in the opposite direction as it is lowered so as to deposit the colour on the screen preparatory to the printing stroke. In the form shown, the squeegee is reciprocated by a pair of chains 11 passing over sprockets 9, 10 at the ends of the machine frame. Sliders 13 running on rails 12 at each side of the frame are connected by arms 15 to the adjacent chains. The squeegee 20 is carried on levers 17 mounted to swing on a cross-bar 16 connecting the arms 15. Adjusting screws 25 on a second cross-bar 24 bear downwardly on arms 26 connected to levers 17 and a spring 22 urges the levers 17 in an anticlockwise direction. As shown in Fig. 3, the squeegee 20 sweeps the colour 31 into a receptacle in the form of an arcuate dam 28 beyond the end of the screen 8. As the connection point 23 to the chains 11 begins to pass round the sprocket 9 the levers 15 lift and allow the levers 17 to rotate under the action of springs 22 to sweep the colour up the dam as shown in Fig. 4. The levers are checked in this position by engagements between extensions 30 and the cross-bar 24. During the return stroke part of the colour is retained on the squeegee blade. Towards the end of the return stroke the extension 30 meets a fixed buffer 29, Fig. 5, adapted to rotate the levers 17 in the clockwise direction to deposit the colour on the screen in readiness for the next printing stroke. In a modification, the squeegee bears on the screen at an obtuse angle so that the forward rocking movement at the end of the stroke causes some of the colour to be lifted on the blade of the squeegee and carried back to the other end. In an alternative arrangement the screen, which may be flat or curved, may be adapted to reciprocate in the machine while the squeegee remains still. Specification 702,866 is referred to.
Patent GB-341536-A (GB)
Title: Improvements relating to synchronous electric motors and systems of control therefor
IPC: H02K7/118
Filed: 1929-10-18
Abstract: 341,536. Synchronizing dynamoelectric machines ; protective devices. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London.- (Assignees of Matson, R. M. ; 158, Brandywine Avenue, Schenectady, New York, U.S.A.) Oct. 18, 1929, No. 31706. Convention date, Oct. 23, 1928. [Classes 35 and 38 (iv).] A synchronous motor 10 is accelerated as an induction motor by the aid of a starting winding 18, with its field 12 connected in a closed local circuit over contacts 32 and through heating-elements 21 of a thermal switch 20. When synchronous speed is reached, energization of a relay coil 31b overcomes that of a coil 31a and the associated contacts are closed thereby energizing the field-contactor 16 to connect the field to a D.C. supply and to open contacts 32 in the local circuit. If the motor is unduly long in accelerating, with consequent undue heating of the winding 18, a similar heating of the thermal switch will occur, with consequent opening of contacts 22 and de-energization of the contactor 14. The switch 20 is preferably of the type described in Specification 209,436, [Class 38 (v), Electric switches &c.].
Patent GB-441651-A (GB)
Title: Improvements in or relating to boots or shoes
IPC: A43B3/12
Filed: 1934-11-05
Abstract: 441,651. Soles for boots etc.; moulding. HERTFORDSHIRE RUBBER CO., Ltd., Works Road, and ENTWISLE, G., 131, Wibury Road, both in Letchworth, Hertfordshire. Nov. 5, 1934, No. 31771. [Class 17 (ii)] [See also Group V] A sole for a shoe, more particularly a sandal, is formed with a plurality of transverse slots through which are passed one or more lacing elements or straps for holding the sole in position on the foot. The slots are formed, as shown, by grooves 4... 7 in the upper surface of the outer sole 2 in co-operation with the undersurface of an insole 1, and a single strap 3 may be detachably threaded therethrough, as shown, to attach the sole in position. The soles are stamped transversely from a strip of rubber formed by extrusion and having longitudinal grooves therein at the desired locations. Such strip may have integral therewith a thickened portion under the ball and a heel. The upper sole member or insole 1 may be of rubber or leather and may be cemented to the outer sole member 2 before or after the latter are stamped from the strip.
Patent GB-762948-A (GB)
Title: Improvements relating to the hardening of case-carburised steel
IPC: C23C8/80
Filed: 1952-12-15
Abstract: A process for core- and case-hardening of carburized alloyed or unalloyed steels containing small amounts of one or more of the elements Al, V, Ti, Zr, Ta and Nb sufficient to produce fine grained structure but insufficient to affect the other properties comprises carburizing the steel, cooling to below the Ar, point of the core, heating to above the Ac3 point of the core and quenching.  The total amount of the grain refining elements should not exceed 0.2 per cent. The amount and nature of the alloying elements depend on the cross-section of the workpiece and should be sufficient to give full hardening to the centre of the core. The workpiece may be annealing at a temperature below the Ac1 point and cooled prior to heating to above the Ac3 point.