baber/WOPTO huggingface dataset:
Patent GB-944773-A (GB)
Title: Improved process for the oxidation of organic compounds
IPC: C07C11/02
Filed: 1961-12-11
Abstract: The oxidation of C3-C6 alkenes by reaction with oxygen in the presence of a catalyst comprising mixed oxides of bismuth with molybdenum, tungsten and/or phosphorus or a bismuth salt of an oxyacid of molybdenum, tungsten and/or phosphorus is effected in the presence of free hydrogen; ammonia may also be present.  The hydrogen plays no part in the reaction and is introduced together with the alkene, being the reaction product obtained by catalytic dehydrogenation of an alkane, and/or with the ammonia, being the product containing hydrogen from the Haber process.  The catalyst may be supported on a carrier and diluted with an inert material. Reaction is effected with 0.3-1.5 moles of oxygen (e.g. as air) per mole of alkene, the oxygen concentration being below 12% and the hydrocarbon concentration above 12% by volume; steam may be added. Suitable conditions are 340-650 DEG C. and a space velocity low enough to effect 95% conversion of oxygen. Propylene forms acrolein or, in the presence of ammonia, acrylonitrile and isobutylene in the presence of ammonia forms methacrylonitrile.ALSO:The oxidation of C3-C6 alkenes by reaction with oxygen in the presence of a catalyst comprising mixed oxides of bismuth with molybdenum, tungsten and/or phosphorus or a bismuth salt of an oxyacid of molybdenum, tungsten and/or phosphorus is effected in the presence of free hydrogen; ammonia may also be present.  The hydrogen plays no part in the reaction and is introduced together with the alkene, being the reaction product obtained by catalytic dehydrogenation of an alkane, and/or with the ammonia, being the product containing hydrogen from the Haber process. The catalyst may be supported on a carrier and diluted with an inert material.  Reaction is effected with 0.3-1.5 moles of oxygen (e.g. as air) per mole of alkene, the oxygen concentration being below 12% and the hydrocarbon concentration above 12% by volume; steam may be added.  Suitable conditions are 340-650 DEG  C. and a space velocity low enough to effect 95% conversion of oxygen.  Butene obtained by dehydrogenation of butane and containing the hydrogen also formed may be converted to butadiene.
Patent GB-942624-A (GB)
Title: Process for stabilising organopolysiloxanes
IPC: C08G77/32
Filed: 1961-12-12
Abstract: An alkali-metal catalysed rubber-forming organopolysiloxane is stabilized by intimately dispensing a minor amount of a bromoalkane of the formula: <FORM:0942624/C3/1> wherein R is H, or a monovalent hydrocarbon or halo-hydrocarbon radical having up to 4 C atoms, throughout the siloxane and heating the mixture to a temperature within the range of 50 DEG  to 250 DEG C.  The convertible siloxanes used may contain Si-bonded hydrocarbon (saturated or unsaturated), halohydrocarbon or cyanoalkyl radicals or terminal OH groups, as described in U.S.A. Specifications 2,448,556, 2,448,756, 2,457,688, 2,484,595, 2,490,357, 2,521,528, 2,541,137 and 2,843,555.  The bromoalkane is generally added in an amount sufficient to provide at least 6 atoms of bromine per atom of alkali-metal based on the equivalent weight of the alkali-metal catalyst used in the polymerization. In Examples, 1,2,3-tri-bromopropane was used to stabilise a KOH-equilibrated dimethylpolysiloxane. U.S.A. Specifications 2,567,110, 2,739,952 and 2,789,109 also are referred to.
Patent GB-901863-A (GB)
Title: Apparatus for use in the end to end glueing of wood or wood-like materials
Inventor: WARMBRUNN FRANZ
IPC: B27M3/00
Filed: 1960-12-28
Abstract: 901,863. Cramps. GIESECKE, G., GIESECKE, G., GIESECKE, K., and GIESECKE, H., [trading as HUBEL & PLATZER]. Dec. 28, 1960, No. 44534/60. Class 61. A cramp for holding work such as two wooden boards which are to be glued together end to end, comprises two relatively movable clamping- members 1, 2 for receiving the respective workpieces wherein wedge-shaped retaining blocks 4 are mounted in the clamping members to cooperate with inclined planes on the latter in such manner that the blocks are urged against the workpieces by a compressive force applied in the longitudinal direction of the workpieces. As shown, the clamping member 2 is rigidly connected to the body of the cramp. The clamping member 1 provided with rollers 9 movable on slide rails is moved towards the clamping member 2 by inflating a tube 10. Restoring cylinders or springs 11 return the clamping member 1 to its original position. Roller bearings 3 and restoring springs (not shown) are interposed between the inclined planes and cooperating wedge surfaces on the blocks 4, the blocks being forced apart by one or more pretensioned springs 5.
Patent GB-1012879-A (GB)
Title: Improvements in piston-and-ring assemblies for internal combustion engines, compressors and the like
Inventor: CROSS ROLAND CLAUDE
IPC: F16J9/06
Filed: 1964-11-02
Abstract: 1,012,879. Piston rings. CROSS MANUFACTURING CO (1938) Ltd. Nov. 2, 1964, No. 44601/64. Heading F2T. A piston-and-ring assembly comprises a split ring of L- or V-section housed in a groove 3 in the piston and urged both radially outwards and against one side of the groove by a spring 6 compressed between the juncture of the legs 4, 5, Fig. 1, 8, 9, Fig. 3, and the opposite side of the groove. The spring 6 is in the form of a cockle ring and in Fig. 1 bears against the corner angle 7. The edges of the legs of the ring may be chamfered as at 13, Fig. 3. Specifications 871,690, 913,734 and 930,250 are referred to.
Patent GB-1536750-A (GB)
Title: Alloys
IPC: C22C19/05
Filed: 1976-10-29
Abstract: 1536750 Nickel alloy ASSOCIATION POUR LA RECHERCHE ET LE DEVELOPPEMENT DES METHODES ET PROCESSUS INDUSTRIELS and SOC NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION 29 Oct 1976 [31 Oct 1975] 44973/76 Heading C7A A nickel based, alloy containing in wt per cent CO 13-20 Cr 13-19 Mo/w 3-6 total C 0À01-0À20 Al 2-4 Ti 0À10-3À0 Hf 0À30-1À5 Zr 0-0À10 B 0-0À02 Ni Bal with up to 0À5% Si and S as impurities, where Al + Ti = 4-7 and the ratio Ti to Al is 0À2-1À5 is made by vacuum melting or powder metallurgical techniques. After casting, the alloy should be worked to refine the grains, and then (1) heat treated by partial or complete solution treatment, (2) held to permit growth of carbides and to initiate precipitation of the γ' phase and finally, (3) to complete the precipitation of the carbides. Where complete resolution is desired, the first stage is carried out at 1050-1200‹C, but if only partial solution is required, it is effected at 950-1050‹C. The second stage is at about 850‹C for 10-30 hours, and the final stage is 10-30 hours at 760‹C followed by air cooling. The resultant heat treated, worked materials are suitable for discs, casings, blades, flame tubes and compressors for high performance turbines.
Patent GB-1490552-A (GB)
Title: Image splitting devices for sizing instruments
IPC: G01B11/02
Filed: 1975-11-11
Abstract: 1490552 Measuring dimensions photoelectrically VICKERS Ltd 11 Nov 1975 [17 Oct 1974] 45118/74 Addition to 1375036 Heading G1A In a sizing instrument of the type disclosed in Patent Number 1375036, the video signals are produced from a television associated with the fluorescent screen 21 of an electron microscope 20, or, the video signals are produced directly from a "scanning" electron microscope Fig. 2 (not shown). The video signal output of the television camera 4 is fed to a calibrated variable delay system 8 and one input of a scanning amplifier 7. A second input of the amplifier 7 receives the delayed video signal from the variable delay 8. The composite video signal output is fed to an oscilloscope 10 such that it forms a display which comprises two laterally displayed images of the object. The lateral spacing can be varied by means of the delay system 8 so the technique of measurement by image splitting can be employed as disclosed in the above Patent. The T.V. camera may have imaging means for directing radiation from the fluorescent screen on to the camera's photocathodes or the camera may be of the sort whereby the photocathode can be positioned directly adjacent the fluorescent screen.
Patent GB-1402468-A (GB)
Title: Method of installing large tanks in ships and floating structures
IPC: B63B25/08
Filed: 1972-09-29
Abstract: 1402468 Ship constuction SENER TECNICA INDUSTRIAL Y NAVAL SA 29 Sept 1972 [8 Oct 1971] 45122/72 Heading B7S In a method of installing a large tank in a ship or other floating structure which is under construction, at least the section of the ship or structure in which the tank is to be received is at least partially constructed and located in a dock or dry dock which is then at least partially flooded. The section is also flooded and the tank is floated in the dock and moved into position above its final position in the section. The dock and the section are then drained so that the tank is received in the section. The buoyancy of the tank may be partially provided by floats.
Patent GB-1415555-A (GB)
Title: Production of non-toxic gas by combustion of solid propellant
IPC: C06D5/06
Filed: 1973-09-26
Abstract: 1415555 Gas-producing compositions SOC NATIONALE DES POUDRES ET EXPLOSIFS 26 Sept 1973 [17 Oct 1972] 45166/73 Heading C1D [Also in Division F1] For use in the production of non-toxic gas at a moderate temperature for the inflation of a vehicle safety device (see Division F1), a gasproducing composition comprises at least 80% by weight of an inorganic oxidant and not more than 17% by weight of a. carbonaceous non- nitrogenous binder. The oxidant may be an alkali or alkaline earth metal perchlorate and the binder may be cellulose triacetate or a silicone resin. Other optional ingredients are triacetin, tricresyl phosphate, acetylene black, and aluminium powder.
Patent GB-1497340-A (GB)
Title: Apparatus for the synchronous running of independently driven processing units of production lines
IPC: B65G47/51
Filed: 1975-10-31
Abstract: 1497340 Endless belt conveyer EGYESULT IZZOLAMPA ES VILLAMOSSAGI RT 31 Oct 1975 45171/75 Heading B8A To ensure the synchronous running of two processing units 10, 20 independently driven by asychronously starting electric reluctance motors and their connecting endless belt conveyer 30 drive gears 12, 22 kinematically rigidly connect the rotary tables 11, 21 of each unit with the conveyer 30. The goods from the table 11 are placed in holders on the run 31 of the conveyer and are transferred to the table 21 by means 23. A compensating bridge 34 is provided in the conveyer 30 so that if the speeds of the units 10, 20 differ the bridge by sliding in its bearings 33 can increase or decrease the length of the run 31 which thus acts as a buffer store and ensures synchronous delivery of the goods to the table 21.
Patent GB-1534670-A (GB)
Title: Product containing high density skins on low density core
IPC: B27N3/04
Filed: 1977-10-31
Abstract: 1534670 Fibreboard MASONITE CORP 31 Oct 1977 [5 Nov 1976] 45229/77 Headings D1R and D2B A fibreboard having a relatively hard, dense, skin and low density core is produced by contacting the surface of as cellulosic fibrecontaining mat having a density of less than 35 lb/ ft <SP>3</SP> with urea, and hot-pressing the ureatreated mat at a temperature of at least 525F. The mat may be formed by a dry or wet process.
Patent GB-1340586-A (GB)
Title: Optical glass
IPC: C03C3/253
Filed: 1971-09-30
Abstract: 1340586 Optical glass EASTMAN KODAK CO 30 Sept 1971 [1 Oct 1970] 45575/71 Heading C1M An optical glass consists essentially of components in the following ranges in percentages by weight: The glasses have high indices of refraction from 2À00 to 2À12 and high transparency with AbbÚ number > 19À0.
Patent GB-1139388-A (GB)
Title: Concrete
IPC: B28B1/50
Filed: 1967-10-06
Abstract: 1,139,388. Porous concrete. INTERNATIONELLA SIPOREX AB. 6 Oct., 1967 [7 Oct., 1966], No. 45714/67. Heading C1H. Porous concrete is made by forming a castable aqueous composition containing cement and/or lime, fine siliceous aggregate, a gas generating agent, and, optionally, stabilizers with such a low content of water as to impart a highlyviscous consistency to it and which at least considerably reduces the possibility of the gas generating agent effecting the expansion of the mass in its normal state; casting the mass and subjecting the cast mass to agitation of sufficient strength to charge the rheological properties of the mass and to effect the expansion by the gas-generating agent despite the reduced aqueous content. The siliceous aggregate may be sand and the gas-generating agent may be aluminium. The agitation may be shaking or vibration by a repeated series of impacts and may be imparted to the mass via the mould containing the mass during the expansion. The shaking or vibration frequencies may be varied during the expansion.
Patent GB-951687-A (GB)
Title: Improvements relating to mass spectrometers
Inventor: GREEN BRIAN NOEL
IPC: H01J49/02
Filed: 1961-12-22
Abstract: 951,687. Mass spectrometers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Dec. 11, 1962 [Dec. 22, 1961], No. 45997/61. Heading H1D. A mass spectrometer ion collector apparatus is provided with a positively charged electrode for suppressing adverse effects due to the secondary-emission of negatively charged particles in the apparatus. As shown, the magnetic analyser of a mass spectrometer comprises magnet poles 1, 2 defining a gap 3 through which a beam 4 of primary ions passes to strike a plate 5 coated with an ion-sensitive layer 6. An electrode 7, supported between the layer 6 and the poles 1, 2, is formed with a longitudinal slit 8 for the passage of the ion beam 4, and is charged to a positive potential, e.g. 300 volts, so that it attracts any negative particles, such as secondary electrons from the layer 6 or tertiary electrons from the surfaces of the poles, emitted in the apparatus. These particles are thus prevented from striking the sensitive layer, where they would otherwise form additional marks which would totally or partially mask the marks produced by the primary ion beam. The plate 5 may be supported so that it can be moved transversely relative to the path of the ion beam.
Patent GB-1316025-A (GB)
Title: Production of 1-aminoalkane 1,1-diphosphonic acids
IPC: C03C4/02
Filed: 1971-10-05
Abstract: 1316025 Preparing 1 - amino - alkane -1,1- diphosphonic acids HENKEL & CIE GmbH 5 Oct 1971 [6 Oct 1970] 46207/71 Heading C2P 1 - Aminoalkane - 1,1 - diphosphonic acids of the general formula wherein R is a hydrocarbon or substituted hydrocarbon residue having 1 to 12 carbon atoms are obtained by reacting an organic nitrile (RCN) with phosphorous acid in the presence of a hydrogen halide, e.g. HCl, HBr or HI. The reaction may be carried out in the presence of an inert solvent, e.g. benzene, toluene, CCl 4 , CHCl 3 , nitromethane or tetrachloroethane. Examples are given for the production of compounds in which R is CH 3 , C 2 H 5 , C 9 H 19 , -CH 2 (COOH), C 6 H 5 , and C 6 H 5 CH 2  respectively. The products are useful as complex-forming compounds, e.g. in water softening or bottle washing, and as additives to dyebaths for textiles.
Patent GB-1072259-A (GB)
Title: Improvements in discs for disc brakes
Inventor: HOLLINS PETER GEORGE
IPC: F16D65/12
Filed: 1964-07-23
Abstract: 1,072,259. Brake discs. GIRLING Ltd. July 23, 1964, No. 46209/66. Divided out of 1,009,280. Heading F2E. A brake disc comprises a radial web 11 integrally connecting a radially extending brake flange 10 to one end of an axially extending bell member 12, which is adapted to be secured to a wheel or other rotatable member at its other end 13, wherein the central plane b of the webs is offset axially from the central plane a of the flange in a direction away from said other end of the bell member and wherein the thickness of the web is less than that of the flange. A specific dimensioned example of such a disc is given in the Specification. The purpose of the offset web is to eliminate cone distortion induced by heat on brake application to which conventional brake discs, such as that illustrated in Figs. 1 and 2 (not shown), are prone to.
Patent GB-1073841-A (GB)
Title: Improvements in apparatus for carrying out spectroscopic analysis
Inventor: MACRAE HAROLD RODERICK
IPC: G01J3/36
Filed: 1964-11-16
Abstract: 1, 073, 841. Photo-electric spectral analysis. HILGER & WATTS Ltd. Nov. 12, 1965 [Nov. 16, 1964], No. 46651/64. Heading G1A. The composition of an alloy is determined by the spectral analysis of an arc struck between two electrodes El, E2 made of the alloy using a plurality of photo-multipliers PM each viewing a small portion of the spectrum produced by prism P and which feed voltage to integrating capacitors c for a fixed time; each capacitor voltage is then fed in turn through an amplifying circuit having means to correct for any standing voltage on the capacitor due to stray light on, or leakage by, the photo-multiplier means to vary the sensitivity of each photo-multiplier channel and means to normalize the output voltages against one of them chosen as a reference. The amplifier A may be a differential amplifier as shown having a high impedance input stage and then a high gain stage or an operational amplifier having similar characteristics. A three-stage resistance chain is connected across the amplifier output; in the first stage one of the potentiometers R 1  is selected corresponding to the capacitor voltage being measured to the slider of which is supplied a constant current to compensate for any standing voltage on the capacitor. The selected variable resistance R 2  of the second stage controls the sensitivity. From resistance R 3  of the third stage a voltage is fed back to the input of the differential amplifier, or to the capacitor of an operational amplifier, to normalize the voltages. The normalizing procedure is to disconnect the resistance chain at S 4 , supply a voltage at Y equivalent to unity, and the servomotor on being connected to the output of the amplifier at S 5  then drives the slide of R 3  until the amplifier output is zero; the voltage at Y and servomotor are then removed and the resistance chain reconnected at S 4 .
Patent GB-1370748-A (GB)
Title: Bridge plate for pneumatic tyre inner tube
IPC: B60C29/06
Filed: 1972-10-10
Abstract: 1370748 Valves TRENT RUBBER SERVICES Ltd 10 Oct 1972 [14 Oct 1971] 46690/72 Heading F2V A bridge plate for mounting on an inner tube valve stem 14 has a pair of opposed cantilevered arms 15, 16 struck from the plate along their sides and terminating in spaced apart free ends 17 which define a mounting aperture 13. The arms are angularly set out of the plane of the plate so that the angled free ends 17 have a spragging engagement with the stem in a withdrawal direction. The arms may engage a screw thread 23 on the stem or be positioned to engage flats 24 on the stem. The edges 19 of the mounting aperture prevent rotation of the plate on the stem. The arms may be arcuately set out of the plane of the plate and may have chisel edged ends.
Patent GB-1104788-A (GB)
Title: Improvements in or relating to chromatography
Inventor: MAKIN BRIAN
IPC: G01N30/84
Filed: 1965-11-05
Abstract: The system of Specification 998,107, namely a solid body adapted to carry away as a surface film, a sample of the effluent from a liquid-liquid chromatographic column, is applied directly and without modification, to liquid-solid chromatographic columns.
Patent GB-1453291-A (GB)
Title: Radiactive generator with permeable closure
IPC: G21G4/06
Filed: 1973-10-24
Abstract: 1453291 Separating radioisotopes E R SQUIBB & SONS Inc 24 Oct 1973 [24 Oct 1972] 46957/73 Heading G6R A radioactive solution generator, from which a short-lived radioisotope may be eluted for use in medical diagnosis, comprises a hollow body 12 containing a radioactive source material 36 and closed by pierceable closures 16, 18 which are made of a silicone rubber, e.g. dimethylvinylpolysiloxane, which is gas pervious and permits the escape of gas formed during autoclaving of the generator. The generator may be used for the elution with dilute nitric acid of Tc99m from Mo99 absorbed on alumina.
Patent GB-1020130-A (GB)
Title: Closures for containers
Inventor: MILBOURNE BENJAMIN KING
IPC: B65D50/06
Filed: 1964-11-18
Abstract: 1,020,130. Container closures. B. K. MILBOURNE and C. COOKE. Nov. 18, 1964, No. 47018/64. Heading B8T. An outer cap 26, Fig. 4, not shown, surrounds and is loosely rotatable on a screw cap 16, and to permit their removal from a container the caps-are locked together by a key 36 which is pressed into a slot in the outer cap and a groove in the inner one. The inner cap may have a number of circumferentially spaced notches in which the key may be pressed. The key is attached to the outer cap by a flexible strap 38.
Patent GB-1081425-A (GB)
Title: Pedal bicycles including load carrying devices
Inventor: MOULTON ALEXANDER ERIC
IPC: B62K3/10
Filed: 1964-11-28
Abstract: 1,081,425. Pedal bicycles. MOULTON CONSULTANTS Ltd. Jan. 25, 1965 [Nov. 28, 1963], No. 47072/63. Headings B7E and B7S. A pedal bicycle comprises a load-carrying device 1, such as a platform, a child's seat, a container, or a commercial carrier, carried by a spine 2 which is push-fittable and manually clampable by a device 10 in a longitudinal bracing member 3 of the frame, the member 3 being supported by the frame at its rear end by means of stays 8, 9. The spine 2 incorporates an electrical contact (not shown) at its front end by means of which a rear light (not shown) is connected to the lighting circuit of the bicycle which is carried within the frame members of the bicycle. Means (not shown) are provided on the carrier 1 which engage the stay 8 to prevent rotation of the carrier.
Patent GB-1392038-A (GB)
Title: Record media
IPC: G11B5/80
Filed: 1971-10-13
Abstract: 1392038 Credit card BURROUGHS CORP 12 April 1972 [13 Oct 1971] 47616/71 Heading G4M [Also in Division B6] A credit or identity card carries a magnetic track 2 and contains bars 4 of magnetic material of different coercivity, bars A being of hard and bars B being of soft coercivity. The bars are of magnetic ink and may be printed randomly, with different bars overlapping, in two printing passes. The bars are read by applying a low field to activate the soft bars and reading them, applying a high field to actuate the hard bars, applying a loop field to erase the activated soft bars and reading the hard bars. The distribution and spacing of the bars may identify the card. After the printing operation the data is read and recorded in track 2.
Patent GB-1477090-A (GB)
Title: Process for rendering articles adhesive
IPC: C09J7/38
Filed: 1975-11-19
Abstract: 1477090 Laminates GRIFFINE-MARECHAL 19 Nov 1975 [19 Nov 1974] 47625/75 Heading B5N [Also in Division C3] Adhesive plasticised polyvinyl chloride films may be prepared by (a) coating siliconized paper with solvent-free adhesive compositions comprizing (1) 100 parts by weight of an acrylic resin containing reactive functional groups, (2) 10 to 50 parts by weight of a plasticiser and (3) 0À2 to 3 parts by weight of a crosslinking agent which is active above 70 C., the adhesive after deposition being heated to above 70 C. for at most 1 minute, this latter temperature being at least equal to the activation temperature of the crosslinking agent, and (b) applying the plasticized polyvinyl chloride film to the adhesivecoated face of the siliconized paper. The composition may contain a crosslinking catalyst. The paper may be subsequently removed and the film adhered to a support, e.g. a wall. In an example the adhesive comprises a vinyl acetate/ 2-ethylhexyl acrylate/acrylic acid/hydroxyethyl methacrylate copolymer, didecyl phthalate, hexamethoxymethyl melamine and p-toluene sulphonic acid.