baber/WOPTO huggingface dataset:
Patent GB-1096894-A (GB)
Title: Process for polishing materials
Inventor: HERZOG ARNO HENRY
IPC: C09K3/14
Filed: 1965-02-22
Abstract: 1,096,894. Polishing. MONSANTO CO. Feb. 22, 1965, No. 7606/65. Heading B3D. Silica sol is used as a polishing agent. The silica particles preferably have an ultimate particle size of 5-125 millimicrons and the concentration of solids in the sol is preferably from 2 to 50%. The sol may be an aquasol, an organo-aquasol or an organosol. The organic liquid may be a monohydric alcohol (e.g. ethanol or isopropanol), a polyhydric alcohol (e.g. ethylene glycol, diethylene glycol or glycerol) or an aldehyde or ketone (e.g. formaldehyde or acetone). Materials polished include semi-precious and precious stones; other minerals such as granite, quartz, marble, gypsum, sandstone, slate, basalt, feldspar; glass; ceramics; metals and alloys; semi-conductors; wood and plastics. Specific examples are given of polishing the following: plate glass; granite; sapphire; diamond; aluminium alloy; titanium; yellow brass; magnesium alloy; low carbon steel; stainless steel; silicon wafers; gallium arsenide wafers; zinc selenide wafers and germanium.
Patent GB-421255-A (GB)
Title: Improvements in or relating to vaporisers
IPC: F02M31/18
Filed: 1933-03-13
Abstract: The exhaust-heated jacket of a carburetter may be made of an iron or steel alloy containing 3,2 per cent of carbon, 0,4 per cent of manganese, 2,4 per cent of silicon, 0,2 per cent of phosphorus, and 0,05 per cent of sulphur.
Patent GB-865149-A (GB)
Title: An apparatus and method for impact testing of materials
IPC: G01N3/30
Filed: 1958-03-10
Abstract: 865,149. Testing physical qualities of materials. WLODEK, T. W. March 10, 1958, No. 7689/58. Class 106 (2). In place of the usual specimen in an Izod notched-bar impact test, a specimen 9 with two notches 10, 11 is used, and is gripped by a wedgeshaped clamp 12. Various shapes of notches are described, and the specimen may be used with a clamping notch only, the opposite edge being uninterrupted.
Patent GB-635571-A (GB)
Title: A process for refining vegetable and animal oils
IPC: C11B3/06
Filed: 1947-03-20
Abstract: In the continuous method of refining vegetable and animal oils in two stages to remove free fatty acids, slime and colour substances, by the addition of neutralizing agent followed by centrifuging in each stage, the neutralizing agent is added in the first stage in smaller quantity than necessary for complete neutralization of the free fatty acids and in the second stage in excess of the amount necessary for complete neutralization of the free fatty acids, a soap almost free of fatty oil, slime- and colour-substances being obtained at the first stage and a soap mixed with the colloidal slime- and colour-substances being obtained at the second stage.  Ordinary caustic soda lye is used and the invention is particularly exemplified with peanut oil, an oil of high fatty acid content.  In either stage the oil may be preheated to such a high temperature that the formation of emulsion is prevented during the addition of the lye; alternatively the lye may be added to cold oil, the mixture then being heated to a sufficiently high temperature to break the emulsion.  The latter effect may be facilitated by the addition of an emulsion-breaking electrolyte, such as common salt solution, before, during or after the heating.  The lyes in the first stage are preferably of low concentrations as these are less adsorbent for slime- and colour-substances.  The oil and soap at the neutralization point in each stage may be heated to a temperature higher than required for breaking the emulsions, the heating being preferably very rapid.
Patent GB-452702-A (GB)
Title: Improvements in or relating to the distillation treatment of materials containing hydrocarbons
IPC: C10G1/02
Filed: 1936-03-16
Abstract: The flow of the mixture of oils and finely divided carbonaceous material through the inclined rotary retort described in Specification 393,601 is controlled by the provision of a honeycomb structure.  This comprises at the <PICT:0452702/III/1> upper end of the retort 1 longitudinal and circumferential flanges 25, 24; as shown, the longitudinal flanges 25 extend further down the retort, and the lower end of the retort has plain walls.
Patent GB-1429242-A (GB)
Title: Polymerisation process and catalyst
IPC: C08F10/00
Filed: 1973-02-19
Abstract: 1429242 Preparing cyclic phosphorus compounds IMPERIAL CHEMICAL INDUSTRIES Ltd 31 Jan 1974 [19 Feb 1973] 7988/73 Heading C2P [Also in Division C3] Compounds of formula wherein R is H or hydrocarbyl, each Z is hydrocarbylene, each X is O, S or NR<SP>1</SP>, R<SP>1</SP> is hydrocarbyl and Q is O or S are obtained by reacting a compound P(Q)Ha 3 , where Ha is halogen, and a compound RC(ZXH) 3  or metal salt thereof. The reaction is preferably carried out in an inert diluent in the presence of a basic compound, e.g. a tertiary monoamine, to neutralize the hydrogen halide as formed. The compound of the formula  is obtained by this method, from 1,1,1-tris- (monomethylaminomethyl) ethane, triethylamine and phosphoryl chloride in benzene, under a nitrogen atmosphere, followed by purification by distillation and sublimation in vacuo.
Patent GB-578207-A (GB)
Title: Electrical devices for testing materials
IPC: G01N27/90
Filed: 1944-04-28
Abstract: 578,207. Magnetic tests ; determining physical qualities of materials ; inductance and capacitance measurements. STANDARD TELEPHONEB & CABLES, Ltd. April 28, 1944, No. 7989. Convention date, June 4, 1943. [Class 37] Materials that may vary in their magnetic or electrical properties are tested by placing a sample in a coil that is located in one arm of an A.C. bridge while the standard is placed in a similar coil in another arm of the bridge. The secondary 2 of a transformer is connected to voltage dividers 3, 4 in parallel, sliding contacts on which are connected to the grids of valves 6, 9. The cathodes of these valves are connected together and earthed through a resistance 10. The anodes of the valves 6, 9 are connected to the positive H.T. supply through resistances 11, 12 and are coupled by condensers 15, 16 to resonant circuits formed by inductance coils 20, 26 and condensers 21, 22, 27. These circuits form two arms of a bridge, of which the other two arms are formed by the valves 6, 9. A high frequency voltage from an oscillator is applied to the primary 1 of the transformer and a portion of the voltage from the secondary 2 is applied to the grids of the valves 6, 9. A standard piece of material is placed as a core in the coil 20 and the piece under test, of the same dimensions, is placed in the coil 26. If the test piece is the same as the standard the voltage impressed across the vertical and horizontal deflecting plates of an oscillograph 28 will be equal and in phase, giving a straight line on the screen. If the sample differs from the standard the trace becomes an ellipse. Amplifiers may be employed either at the input or output of the bridge, and distortion due to overloading the amplifiers may be avoided by employing buffer stages and limiter circuits such as diodes. Dielectric materials may be tested similarly by placing them in the condensers 21, 27.
Patent GB-386823-A (GB)
Title: Improvements to electric resistance controllers
IPC: H01C10/10
Filed: 1932-03-18
Abstract: 386,823. Compression resistances. SOC. ANON. LE CARBONE, 37, Rue des Paris, Gennevilliers, Seine, France. March 18, 1932, No. 8101. Convention date, March 26, 1931. [Class 37.] A carbon block resistance regulator comprises units a provided with conical, pyramidical, or other surfaces, b, c having different angles of slope and making line contact so that on increase of controlling pressure the surface area in contact increases. The units are under spring pressure varied, for example, by the core of an electromagnet. Fig. 6 shows the resistance units a carried in a glass tube g surrounded by a tube h forming the core of an electromagnet winding k, the parts a, g, h being located in a casing j by springs d, i.
Patent GB-391585-A (GB)
Title: Improvements in apparatus for filling and closing, or closing bottles
IPC: B67C7/00
Filed: 1932-03-18
Abstract: 391,585. Filling and closing bottles. RILEY, F. G., 256, South Lambeth Road, London. March 18, 1932, No. 8107. [Class 125 (ii).] A machine for closing bottles with crown corks comprises a crowning head C fitted with a rubber jointing ring E2 against which the mouth of the bottle is forced, means for securing the bottle in this position whilst the head is raised for the application of a crown cork D to the bottle mouth, and means for returning the head to its original position, thus closing the serrated edge of the cork around the bottle mouth. Fig. 2 shows the bottle mouth forced against the ring prior to the ascent of the head. The machine may be modified for filling as well as closing, the filling tube then passing through the crowning head and ring. Fig. 6 shows such a machine, which fills and crowns two bottles simultaneously and which comprises a standard A on which is mounted a revolving cam plate B carrying cams Bl .. B7. The operation of the machine is as follows : Bottles are placed on rests M1 secured to spindles M sliding in guides in a revolving table R which is given an intermittent motion by a ratchet wheel operated by the cam B7. Two crown corks are fed by hand or automatically to the feeder Dl, and the spindles M are raised by quadrant cams L on drums O fitted with spring-operated cam-controlled brake shoes, the cams L being rotated one way by weights N and another by the cam B6. The bottles are secured in this raised position by the drum brakes which are locked by a cam (not shown). The cam B5 now lowers a block G, to which are fixed syrup pumps J, in which slide stationary pistons. Syrup is thus discharged through valves J2 and filling tubes E1 into the bottles. At the extremity of the stroke of the block G liquid inlet valves H are opened by impinging on stops H1 and the bottles are filled by liquid coming from the tank V via the pipe VI. Snifting valves F are opened by the cam B1. The block G is then raised by the cam B4, closing the valves H, filling the pumps J2 with syrup by suction through valves J1, and withdrawing the filling tubes E1 completely out of the bottles. The crowning block C is then raised by the cam B2, a cruwn cork is positioned over each bottle mouth and the block is depressed by the cam B3, thus crimping the cork on the bottle. The drum brakes are then released, the spindles M lowered, the table R given a partial revolution, the crowned bottles removed and empty ones positioned under the filling heads. Specification 756/99, [Class 125, Stoppering &c.], is referred to.
Patent GB-662790-A (GB)
Title: Improvements in or relating to machines for cutting leaf tobacco and similar materials
IPC: A24B7/12
Filed: 1949-03-24
Abstract: 662,790. Cutting tobacco. LEGG, Ltd., R., and SCHREIBER, P. Q. R. March 24, 1950 [March 24, 1949], No. 8109/49. Class 5(i) In slicing leaf tobacco by cutters 10 on the periphery of a rotated drum 12 engaging tobacco fed through a mouthpiece 8 by, e.g. conveyers 4, 6 the cut tobacco is removed from the pockets 15 by a cam actuated ejector bar 18 after it has passed 'the mouthpiece. Ejection is also assisted by air suction outwards from the pocket 16. The ejector 18 is mounted on crank 22 rocked, to eject, by the crank roller 26 rolling around a fixed cam ring 28. Part of the drum periphery is cased by a suction hood 32 into which the ejected tobacco falls and passes from a duct with conveyer to a settling chamber. The hood 32 has a clearance 37 at the drum periphery to allow air to enter and similarly an air clearance is provided between the ejector 18 and the walls of the pocket 16 to suck small bits of tobacco from the pocket 16. Such air is drawn from the inside of the drum through a hollow sub shaft 42. The cutters 10 may be arranged helically around the drum. Specification 662,791 , is referred to.
Patent GB-1133666-A (GB)
Title: Slot-rolling machine
Inventor: YAKOBSON MIKHAIL OSIPOVICH
IPC: B21H5/02
Filed: 1966-02-24
Abstract: 1,133,666. Rolling. EXPERIMENTALNY NAUCHNO-ISSLEDOVATELSKY INSTITUT METALLOREZHUSCHIKH STANKOV. 24 Feb., 1966, No. 8135/66. Heading B3M. A slot-rolling machine has supports 4, 5 for the work 3 and a roller head with rolls 6 each having at least one recess 9 which co-operates with a roll positioning ring 8 on the support 4. Six rolls 6 are positioned in the roller head which is moved hydraulically towards the support 5 on a slide and the rolls 6 are rotated initially by engagement between the recesses 9 and the ring 8. The peripheral arc 11 of each roll contacts the work, further movement of the head causing slots to be formed on the work 3 by cold-rolling. At the end of the forward stroke the recesses 10 on each roll engage the step in the work. The head is returned to its initial position and the support 4 withdrawn to enable the work to be removed. It is preferable to have the recesses of the same profile so that different arcs may be used alternatively. The recess of each roll which abutted the step in the work during the previous rolling becoming the positioning recess which abuts the ring 8 in the next rolling.
Patent GB-1198841-A (GB)
Title: Apparatus for Introducing Petrol in a Gaseous Form into an Internal Combustion Engine
Inventor: BOSWELL HENRY JAMES
IPC: F02M1/00
Filed: 1967-02-21
Abstract: 1,198,841. Supplying engines with gasefied fuel. H.J. BOSWELL. July 24, 1968 [April 24, 19671. No. 8173/67. Heading F1B. Liquid fuel is fed by a pump 10 to a float chamber 13 controlling the fuel level in a reservoir 14 from which the fuel flows through pipe 16 to a fuel heater, the gasefied fuel being returned through pipe 17 to the reservoir 14 and fed through pipe 19 to the engine. A cut-off valve 12 is open at starting to supply liquid fuel to the intake pipe 11, the valve 12 being shut off automatically by means responsive to the temperature of the fuel heating means. In Fig. 1 the fuel heater comprises a pipe 20 passing through the exhaust manifold; alternatively the fuel may be heated in a jacket surrounding the exhaust pipe. In Fig. 3 the fuel is passed through a pipe 25 in a casing filled with a fluid and heated indirectly by an electric heater 24. The valve 12 may be locked when the vehicle is unattended to prevent starting.
Patent GB-870406-A (GB)
Title: Improved driving gear for the spindles of textile spinning, doubling, twisting and like machines
Inventor: BRADSHAW JOHN
IPC: D01H1/243
Filed: 1959-03-10
Abstract: 870,406. Spindle driving means. T. M. M. (RESEARCH) Ltd. March 7, 1960 [March 10, 1959], No. 8250/59. Class 120(2) Spindle driving means comprises a bevel 12 on the blade or other rotary part of a spindle, a bevel 15 on a driving shaft 13, a bevel 16 or bevel assembly for frictionally transmitting drive from bevel 15 to the spindle bevel 12, the mounting of the intermediate bevel or bevel assembly being resiliently influenced to maintain pressure between the contacting members of the driving train. Means are provided such that the spindle may be braked and the intermediate bevel disengaged simultaneously. The bevel 16 is mounted on a shaft 17 which rotates on bearings 18 in a block 19 slidable in a fixed holder 20 and downwardly urged by an adjustable spring 21. A plunger 25 mounted in a fixed part of the machine 101 has a knob 26 and carries in the bracket 24 a brake shoe 23 which may be urged into contact with the spindle by pressing the knob 26 against a spring 25; at the same time a cam surface 28 engages a corresponding surface on the block 19 to raise the bevel 16 out of contact with the other two. Automatic compensation for wear is provided by arranging the axes of bevels 12, 15, 16 to meet in a common point X which is also intersected by lines projected along the contacting faces of the bevels. In a further form the spindle bevel is mounted above the bolster and is driven by a bevel on the driving shaft via an inclined shaft having a bevel at each end.
Patent GB-1242924-A (GB)
Title: Improvements relating to sliding roofs for vehicles
Inventor: GAYDAROV NIKOLA MARTINOV
IPC: B61D39/00
Filed: 1969-02-14
Abstract: 1,242,924. Sliding roofs. BTP PRI J. P. ZAVOD "G. DIMITROV." 14 Feb., 1969 [15 Feb., 1968], No. 8279/69. Heading B7L. A vehicle has two longitudinally slidable roof sections 1, 2 each carrying a rack 36 engaged by pinions 22, 23 secured to the shafts 50, 51 of a differential mechanism so that rotation of the differential mechanism opens one roof section whilst urging the other to a closed position. The differential mechanism is rotatably supported on an axle 24 mounted in bearings 25, 26 on the vehicle frame and has a housing 13 having teeth 15 engaged by a chain 12 driven by a sprocket 11 in turn driven by a shaft 10, a sprocket 9 and a chain 7 driven by a handle 3. A shaft 16 is secured to the housing 13 and transmits rotation of the housing 13 to sun-wheels 18, 19 through satellite wheels 17, the sun-wheels 18, 19 being splined to the shafts 50, 51. Each rack 36 comprises girders 34 between which are mounted rollers 35 and which are guided by engagement with further rollers 33 carried by guide levers 29, 30 freely rotatable about the axle 24. To open the roof, the handle 3 is rotated to, e.g., rotate the pinion 22 and thus lift the roof section 2 and pivot the respective guide levers to the position shown in Fig. 4. At this position a stop 43 carried by the guide levers 29, 30 abuts a cam 40 secured to the axle 24, and a cam 41 secured to the other end of the axle 24 abuts a stop 43 on the other guide levers 29, 30 which are held by the stationary rack of roof section 1. Thus the axle 24 stops rotation and the guide levers 29, 30 for section 2 are held as shown to guide the roof part 2 as it is opened.
Patent GB-754433-A (GB)
Title: Improvements in or relating to electric circuits incorporating signal storage tubes
IPC: H01J31/60
Filed: 1953-03-25
Abstract: 754,433. Television. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. March 25, 1953 [April 25, 1952], No. 8310/53. Class 40 (3). [Also in Groups XL (a) and XL (c)] A cathode-ray storage tube for recording and reproducing information has a target comprising a dielectric, e.g. mica plate 2, Fig. 5, a metal back plate 3 at low potential and a grid 4 at high positive potential to prevent secondary electron redistribution, cathode potential being taken as zero, an inclined gun 5, 7, 8 for producing a scanning beam whose velocity is varied by varying the back plate potential, an electron lens electrode 9 the focal plane of the lens passing through the centre of deflection of the scanning beam and a secondary emission collector 11, for collecting secondaries emitted by the screen when impacted by the scanning beam, the electrode 11 being at the highest positive potential of any electrode of the tube; a further electrode 10 may collect primaries reflected by the target 2, 3. For writing, the dielectric plate is scanned by the intensity modulated beam and emits secondaries in a ratio >1 so that positive charges are built up, the velocity of scanning being determined by the potential of back plate 3. For reading the scanning beam is unmodulated and the back plate 3 is brought to zero potential; since the positive areas have a potential less than V 1  (the first cross-over point) reading destroys the charge image after one or a few scans and brings all areas of the target to zero potential. Alternatively the positive areas may be allowed to charge to a potential greater than V 1 , e.g. for two tone image signals, in which case the charge image is not destroyed when reading. In the latter case, for erasing, the back plate 2 is made so negative that the secondary emission ratio is <1 for all areas of the target and the positive areas are driven to cathode potential. An arrangement for storing and reading off a two tone, e.g. black and white, image is described with reference to Fig. 5. In this form an image analyser, the scanning of which is synchronized with that of the storage tube, feeds picture signals to a pulse generator, which generates a positive square pulse for each white picture point and unblocks the beam for these periods only. The target points are consequently at #V> V 1  or zero potential for white and black points respectively. The positive target points are at a higher potential than the lens electrode 9 so that secondaries emitted during reading are prevented from reaching collector 11 while the primary electrons reflected by the zero potential areas can reach collector 10. The deflecting plates may be replaced by coils, and the scanning may be in lines or, for panoramic radar, in a spiral.
Patent GB-139906-A (GB)
Title: Improvements in connection with drawing and like rollers of machines for treating textile fibres
IPC: D01H5/62
Filed: 1919-04-03
Abstract: 139,906. Macintyre, L. G. April 3, 1919. Rollers and roller heads.-In machines for treating textile fibres, of the kind wherein a " rubber " bar is used to strip waste and dirt from the drawing and like rollers, a rope F, Fig. 2, or a chain provided with brushes, scrapers, or the like travels longitudinally of the rollers and in contact with the forward edge of the bar D, where it meets the roller, to prevent accumulation of waste and dirt between the bar and the conductor plate. The carrier pulleys G for the rope are shaped as shown in Fig. 3, so that as the rope tends to ride on the part of greatest diameter, it is pressed against the lower roller. The rope or chain may be provided with tensioning-means, and collected waste may be removed from the rope or brushes by means of brushes and conveyed from the machine by a travelling belt or lattice. In the Provisional Specification, it is stated that the rope or the like may be reciprocated along the face of the bar.
Patent GB-493097-A (GB)
Title: Improvements in or relating to foot arch supports
IPC: A43B7/14
Filed: 1938-03-18
Abstract: 493,097. Foot-arch supports. TRICK, J., and TRICK, W. B. March 18, 1938, No. 8389. [Class 17 (ii)] A resilient plate B shaped to support the arch of the foot has a tongue 23 at its front end in sliding engagement with a slot 30 in the front end of a shank stiffener 15 placed between the inner and outer soles 12, 10 of a boot or shoe. The plate B has projecting portions at its front end bearing on the insole 12 and is fastened in the shoe at the rear on the outer edge only. An internally and externally screw-threaded sleeve 31 clamps by means of a nut 34 the insole 12 and shank stiffener 15 together, and the enlarged head 36 of a screw 35 engaged therein may be adjusted from outside the shoe to raise or lower the inner edge of the supporting plate B to afford the desired amount of support,