baber/WOPTO huggingface dataset:
Patent GB-1026783-A (GB)
Title: Improvements relating to chemical reaction processes leaving solid residues
Inventor: CLOETE FRANCIS LOUIS DIRK
IPC: B01F15/00
Filed: 1961-05-24
Abstract: 1,026,783. Discharging solid residues from reaction vessels. NUCLEAR CHEMICAL PLANT Ltd. May 14, 1962 [May 24,1961], No. 18706/61. Heading B1X. [Also in Division G6] Solid residues are removed from reaction vessels in fluidized form by entraining the solid in a stream of gas which is passed through the vessel to an outside separator where the solid is disentrained from the gas. This method may be applied to a dissolver which has been used to dissolve irradiated nuclear fuel in nitric acid leaving a residue of stainless steel (from the sheathing and/or matrix of the fuel). The dissolver comprises two vessels 11 and 12, communicating at their lower ends. The fuel is fragmented by the shearing machine 21 and fed into the vessel through pipe 16, and nitric acid is introduced through pipe 17. On completion of the reaction, the solution is removed by suction through line 23 into tank 22. Steam from a high pressure source 26 is discharged through an ejector 25 into the vessel 11 through an inlet 24. The steam with the entrained solid residue leaves the vessel 12 by way of outlet 27 and passes to the cyclone separator 28. The residue is separated from the steam in the separator and the steam is recycled to the ejector 25.
Patent GB-965273-A (GB)
Title: Improvements relating to braking systems
Inventor: ANSCOMBE RAYMOND LEONARD
IPC: B60T15/18
Filed: 1961-05-24
Abstract: 965,273. Fluid-pressure brakes. WESTING- HOUSE BRAKE & SIGNAL CO. Ltd. May 11, 1962 [May 24, 1961], No. 18729/61. Heading F2F. A triple valve for compressed fluid braking apparatus is of the quick-acting type wherein, when operated by a reduction in brake pipe pressure, in addition to connecting an auxiliary reservoir to a brake cylinder, it connects the brake pipe to the brake cylinder via a check valve. The invention consists in providing means for loading the check valve in dependence upon the brake cylinder pressure to ensure that the brake pipe pressure can be raised sufficiently to release the brakes without the check valve opening and thereby preventing further pressure rise. As shown, the triple valve comprises a diaphragm 2a separating a control chamber 3 from an inlet chamber 5 connected by passage 6 to an auxiliary reservoir. Control chamber 3 is connected by passage 4 to the brake pipe and also by a normally closed valve 13 to a passage 16 and thence by a check valve 17 to passage 20 leading to the brake cylinder. When a reduction in brake pipe pressure occurs the plunger 2 of the diaphragm 2a is raised to open the valve 13 and also by a shoulder 37 an inlet valve 27 communicating auxiliary reservoir pressure to a passage 31 which is connected to the passage 20, an exhaust valve 33 normally open to exhaust the passage 31 being closed just prior to the opening of valves 13 and 27. This causes the brake cylinder to be filled from the auxiliary reservoir and the brake pipe simultaneously, in the latter case via the check valve 17 which is initially only lightly loaded by a spring 19. As pressure builds up in the brake cylinder the loading on the check valve is caused to increase by the provision of a piston 22 having a bore 24 through it so that cylinder pressure is communicated via the bore 24 and a restriction 26 to a chamber 25, causing the piston stem 23 to bear down on the valve 17. As a result the loading on valve 17 is increased sufficiently to allow the necessary build up of pressure in chamber 3 when brake pipe pressure is increased to cause operation of the diaphragm to the brake release position, in which the cylinder is again exhausted through valve 33 and valves 13, 27 are re-closed. The triple valve is also provided with a conventional re-charging valve 9 for the auxiliary reservoir, operated by the plunger 2 via a stem 12.
Patent GB-778803-A (GB)
Title: Method and means for treating non-adherent surfaces to render them adherent
Inventor: TRAVER GEORGE WHITE
IPC: B29C59/12
Filed: 1953-07-07
Abstract: <PICT:0778803/IV(a)/1> Surfaces of polythene bodies, e.g. films, are subjected to an electrostatic discharge by interposing the body together with a glass insulating element between conductor electrodes at different potentials, of sufficient intensity to render the surface molecules of the polyethylene highly unsaturated, whereby the surface is rendered adherent to materials such as ink, pigments, bonding materials, flux and adhesives.  The discharge, which may be accompanied by a corona discharge and may be produced by a Tesla coil or transformer at a voltage in excess of 10,000 volts by using an alternating current of at least 10 cycles per second, may be applied only to selected areas.  The discharge may be from tubes, rods, screens or wires and in an example a conductive plate of aluminium foil 42, lying on a conductive coating 43 on a glass plate 44, is raised to a high voltage and placed over the body on a lower conducting plate or conveyer.
Patent GB-937738-A (GB)
Title: Improved process of production of continuous fire-polished glass sheet
Inventor: JAVAUX GUSTAVE
IPC: C03B18/18
Filed: 1962-05-16
Abstract: 937,738. Sheet glass manufacture. GLAVERBEL. May 16, 1962 [June 23, 1961], No. 18938/62. Class 56. In the production of a continuous sheet of fire-polished glass, the sheet 13 is slid in air over a bath 5 of molten metal or molten alloy denser than the glass and non-reactive with the glass or the tank 10, 11 containing the bath to a position where the sheet is lifted, as over a roll 12, from the bath at a temperature sufficiently low for the glass not to be damaged by contact with the roll 12 and rolls 14 for moving the sheet, the metal or alloy being non-oxidisable in air at the temperature required for obtaining the fire-finish and having a melting point greater than 750  C. Gold, silver or alloys of either metal are suggested. The bath 5 is at a slightly lower level than the sill 4 of the glassmelting tank 3 and the molten glass 2 flows over the sill on to the bath. The upper surface of the sheet 13 is fire polished by heaters 7 adjacent the side walls and heaters 8 extending over the whole width of the tank. The bath 5 rests in a layer 10 of refractory material supported in the tank 11 of heat insulating material.
Patent GB-293053-A (GB)
Title: Process of manufacture of reinforced glass
IPC: B32B17/10
Filed: 1928-06-30
Abstract: 293,053. Soc. d'Etude des Verres et Glaces de S¹retÚ, (Assignees of Duclaux, J.). July 1, 1927, [Convention date]. Compound transparent sheets. - Compound glass sheets having a transparent core, such as celluloid, are formed from glass sheets which are rendered plane by grinding, polishing, &c., on the inner contacting face. The contacting surface may also be rendered plane by pouring on to the glass sheet a varnish, collodion, or a gelatine solution, which may have a fugitive colour applied to indicate the thickness by different tints. Several sheets of compound glass may be assembled in the same frame to give greater resistance and a substance having approximately the same refractive index as the glass is preferably used between them, or gelatine or gelose to which glycerine has been added, or other hygroscopic material, may be used between the sheets. The contacting faces of the glass sheets may be round only and a substance having the same dispersion and refractive index used for the core.
Patent GB-495581-A (GB)
Title: Improvements in the casings of locks and latches
IPC: E05B65/44
Filed: 1937-07-09
Abstract: 495,581. Locks and latches. DUNCOMBE, A. T. July 9, 1937, No. 19058. [Class 44] A straight-back lock or latch casing has a back plate e secured against the open back of the box casing by clinching two or more tongues c, c<2> pierced out from the casing a into recesses e<2>, e<3> in the edges of the plate. The tongues are pierced out of the attachment ears a<3>, a<4> of the casing and with the recesses are oblique to the plane of the casing.
Patent GB-147116-A (GB)
Title: Improvements in average speed indicators
IPC: G01P11/00
Filed: 1920-07-07
Abstract: 147,116. Jaeger, E. June 13, 1919, [Convention date]. Average speed indicators for vehicles, with or without taking account of stoppages, comprise time-and-distance indicating-hands a, b, moving over time and distance scales u, v, and a set of curves X from which the speed is read at the intersections of the indicating-hands. The hands a, b, are connected to pivoted spring-retracted sectors f, n driven by reducing-gearing from the clock, and the vehicle respectively, and are returned to zero on the depression of a push p whereby, through pivoted rods q, o, pinions e, m are removed from engagement with the sectors f, n which are then' zeroised by their springs r, .s. To avoid taking into account the time involved in stoppages, the time-indicating hand a may be locked during such periods or a third hand may be provided, and mounted concentrically with the hand a to show the time occupied when travelling only. The clock-work may be wound up by thebutton y or be driven from the vehicle.
Patent GB-950604-A (GB)
Title: Process for the treatment of polyolefins
IPC: C08J3/11
Filed: 1960-05-31
Abstract: A process for reducing the bulk density of a polyolefin (e.g. a polymer of ethylene and/or propylene) comprises dissolving the polyolefin in an organic solvent at 80 DEG  to 200 DEG C. using a protective gas atmosphere (e.g. under nitrogen), separating any undissolved constituents, allowing the polyolefin to precipitate by cooling, freeing the polyoefin from adherent solvent by filtration and displacement, washing and then drying the polyolefin.  Organic solvents which may be used are hydrocarbons of M.W. at least 100, halogenated hydrocarbons, terpenes, ethers, esters and ketones, and those exemplified are cetane, a -pinene, propylene tetramer, perchloroethylene and butyl bromide.  Adherent solvent may be removed by extraction with an alcohol, aldehyde, ketone, ester, ether and/or an aqueous solution containing a wetting agent followed by washing with water, and exemplified compounds are tetrahydrofuran, ethanol and acetone.  The products find application as thermal insulators (e.g. in refrigeration) and in flame spraying and fluid sintering uses.
Patent GB-652491-A (GB)
Title: Improvements in or relating to castings of molybdenum or tungsten or both and a metho of producing such castings
IPC: C21C7/10
Filed: 1948-07-19
Abstract: Castings of molybdenum or tungsten or both contain from 0.01 to 0.25 per cent carbon and not more than 0.005 per cent oxygen.  A calculated quantity of carbon slightly in excess of that required to combine with the oxygen in the metal is added to tungsten or molybdenum or both in powdered form and the mixture compacted into bar or rod form, sintered by resistance heating and the bar or rod used as an electrode in a vacuum are melting furnace, the other electrode being the bath of molten metal, which may be collected in a water-cooled copper mould.
Patent GB-1529506-A (GB)
Title: Frequency-selective signal receiver
IPC: H04Q1/457
Filed: 1976-05-11
Abstract: 1529506 VF receivers INTERNATIONAL STANDARD ELECTRIC CORP 11 May 1976 [16 May 1975] 19320/76 Heading H4K [Also in Division G4] A frequency-selective receiver compares stored absolute times of the zeros of the input signal with corresponding times from a counter for a reference signal, the product of the two signals being integrated on the basis of the comparison. The receiver disclosed is for recognizing telephone voice-frequency dialling information consisting of 1-out-of-4 "high" frequencies plus 1-outof-4 "low" frequencies. A high pass filter passes the high frequency via a limiter to a device which measures the times of a series of zero-crossings using a clock-driven counter and stores them. These times are used to determine which of the 4 frequencies is present, assuming that one is, to control a counter to provide the zero-crossing times appropriate to this frequency. These go to a comparator together with the stored times for the input signal, the larger comparand in each comparison being gated to a store, the difference between successive entries to this store being taken, successive such differences being summed with alternating sign. The comparator controls the counter and the input signal time store, the effect being to correlate the input frequency signal with the reference, i.e. integrate their product. Another correlation is done using the reference phasedisplaced by 90 degrees. The results of the two correlations are each squared and then added together. If the sum exceeds a threshold, one of 4 outputs is marked corresponding to the reference frequency used. Similar arrangements, starting with a low pass filter, deal with the low frequency, to mark one of 4 outputs. The two 1-out-of-4 markings are converted to a 1-out-of-n marking. The receiver can be made using integrated circuits.
Patent GB-316748-A (GB)
Title: Improvements in suspension means for vehicles
IPC: B60G11/15
Filed: 1928-07-05
Abstract: 316,748. Wright, J. R. July 5, 1928. Springs, arrangement of.-The axle 7 is connected to one end of a two-armed lever 6, 10 pivoted at 4 to the frame, the other end being controlled by a spiral spring 13 the front end of which is secured to the bracket 14 carrying the pivot 4. In a modification, the fixed end of the spring is carried by a bracket independent of the pivot bracket.
Patent GB-862747-A (GB)
Title: Apparatus for the catalytic pressure-refining of crude benzene in the presence of hydrogen
IPC: C10C1/20
Filed: 1957-06-21
Abstract: In the catalytic refining of crude benzene at elevated pressure, e.g. 45 atmospheres, and elevated temperature, e.g. 390 DEG C., in the presence of hydrogen or a hydrogen-containing gas, the corrosive effect of hydrogen sulphide formed is prevented by making the apparatus from 1% chromium steel which has been coated with zinc by dipping.  Suitable catalysts are oxides and sulphides of Group V, VI or VIII metals supported for example on active clay.ALSO:Apparatus used in the hydrofining of crude benzene is made from 1% chromium steel and coated with zinc by dipping to prevent corrosion by hydrogen sulphide.
Patent GB-499357-A (GB)
Title: Improvements relating to centrifugal blowers
IPC: F04D29/42
Filed: 1938-07-04
Abstract: 499,357. Centrifugal blowers. TUGWOOD, R. J. (Daimler-Benz Akt.-Ges.) July 4, 1938, No. 19774. [Class 110 (i)] In order to supply low-pressure air for cooling a Diesel engine and high-pressure air for scavenging or charging, the centrifugal blower has in a common rotor both vane elements 8, Fig. 1, for the former supply and tubular elements 9 for the latter. The elements 8 have thickened edges at their inlet ends, and the elements 9 have a flat cross-section and are curved and splayed conically towards their outlet ends where they project beyond the vanes 8. The vanes 8 lead to a low-pressure passage 5 and the tubes 9 to a high-pressure passage 13<1>. Grooves 11 are provided in the surface of the flared inlet 10. The high- and low-pressure spaces 13, 5<1> may be sealed by extending the elements between the walls 14, 15, Fig. 3, and providing a labyrinth seal 12 consisting of coacting grooves of triangular cross-section.
Patent GB-1381048-A (GB)
Title: Selective hydrogenation of aromatic compounds to cycloolefinic  compounds
IPC: B01J23/46
Filed: 1972-04-28
Abstract: 1381048 Hydrogenation catalysts E I DU LONT DE NEMOURS & CO 28 April 1972 [29 April 1971 25 Feb 1972] 19790/72 Heading B1E [Also in Divisions C2 and C5] A hydrogenation catalyst comprises at least one reduced cation of a group VIII element, alkaline agent and optionally a cationic catalyst modifier selected from Zn<SP>++</SP>, Cr<SP>++</SP>, Hg<SP>+</SP>, Hg<SP>++</SP>, Ni<SP>++</SP>, Mo<SP>++</SP>, Fe<SP>++</SP>, Fe<SP>+++</SP>, Co<SP>++</SP> and Cu<SP>+</SP>. A carbonyl of Cr, Mo or W may also be present. The reduced group VIII cation may be produced by reduction of a group VIII compound with TiCl 3 , NaBH 4 , CrCl 2 , FeCl 2 , Li, Na, K, Rb, Ca, Sr, Ba, Th, Al, Mg, Zn or hydrogen. The catalyst may be supported on a molecular sieve, MgO, Mg(OH) 2 , MgCO 3 , Cr(OH) 2 , CaCO 3 , BaCO 3 , MrCO 3 , NiCO 3 , ZnO, TiO 2 , Al 2 O 3  or talc. When the support is basic, the alkaline agent which is otherwise an inorganic or organic base may be dispersed with.
Patent GB-320605-A (GB)
Title: Automatic telephone system
IPC: H04Q3/00
Filed: 1928-07-09
Abstract: 320,605. Adam, L. July 9, 1928. Automatic exchange systems.-In a system for small private exchanges in which selecting relays 8a - - se, Fig. 3, are controlled in various combinations over auxiliary wires a - - e by substation keys 1 - - 10, Fig. 2, to connect potential to a marking wire such as wire IX, both the calling and called parties are connected in parallel to an idle link circuit by connecting relays t<1>3, t<1>9, under the control of auxiliary relays m3, f9, of which the former is operated over a third wire l3c leading from the calling substation whilst the latter is operated over the marking-wire IX. When subscriber No. 3, Fig. 2, lifts his receiver and presses key 9, relays r, m3, operate in series over lead l3c (battery being supplied to the substation from the exchange over two seperate feed wires). Relay r connects the substation keys to the selecting wires a - - e so that relays sc, se, are energized and connect the negative pole to wire IX, thus energizing relay f9 which completes a circuit for connecting relay t<1>9 in series with control relay j1 (assuming the first link circuit to be idle). Relay j1 energizes relay h1 in series with connecting relay t<1>3, relays h1, j1 lock up over the calling loop to supply talking current, whilst relays t<1>3, t<1>9 are locked by relay h1. Relays h1, j1 operate relay k1 which causes another call to pass to the second link circuit. When relays t<1>9, j1, h1, operate, the called party's direct-current bell is rung over lead l9b, and when the called party replies, the loop over leads l9a, l9b, is' connected to the locking circuit of relays h1, j1 in parallel with the calling loop. If the wanted party is busy (in a call employing, say, the first link circuit) relay f9 does not operate but the marking lead IX is extended to relay g2 of the second link circuit which energizes in series with connecting relay t<2>3. Busy-tone is then connected over contacts of relays g2, t<2>3, to the calling loop l3a, l3b. Specification 292,088 is referred to.
Patent GB-582188-A (GB)
Title: Improvements in or relating to manually operated hydraulic jacks or the like
IPC: B66F3/25
Filed: 1943-11-29
Abstract: 582,188. Lifting-jacks. BRADBURY & SONS, Ltd.,J.,POWELL, A. D., and POWELL, V. Nov. 29, 1943, No. 19926. [Class 78 (iii)] In a manually-operated hydraulic jack, the crutch is adjusted to engage the load by mechanical means which is made inoperative when lifting takes place. 'In one construction the actuating lever 4, Fig. 2, which is connected to the piston rod 2 of the pump 3 by links 4a, 6, is connected by a pawl 19 to a pivoted toothed segment 16. Links 17 connect the segment to a pair of parallel plates 11 which are pivoted to the frame, of the jack at 14 and support the crutch 15. Parallel links 12 pivoted at 13, 13 connect the plates 11 to a pair of parallel members 10 which support a cross-shaft 9. This shaft is connected to the piston rod 8 of the secondary member 7 of the hydraulic jack. During the rapid adjustment of the crutch, the rod 8 is pulled out of its cylinder, thereby sucking fluid into the cylinder through a large orifice non-return valve to sustain the crutch. When the crutch reaches the load, the pawl 19 is released, and the lever rocked to actuate the pump 3. In another construction the crutch is connected by a link to a toothed rotatable segment which is driven by a pawl mounted on the actuating lever of the pump. In a further construction the rotatable segment is replaced by a vertical toothed member depending from the crutch.
Patent GB-360052-A (GB)
Title: Improvements in or relating to reservoir pens
IPC: B43K17/00
Filed: 1931-04-01
Abstract: 360,052. R e s e r v o i r pens. FREIWIRTH, L., 95, Delaware Mansions, Maida Hill, London. April 1, 1931, No. 19946/30. [Class 146 (iii).] In a reservoir pen, particularly a reservoir drawing-pen of the kind having a displaceable member 25 on the ink reservoir 22 for the purpose of forcing ink to the writing point, the displaceable member is formed as a concave cap to avoid accidental displacement. The cap may be secured in place by engaging with a flange on the end of the reservoir or by means of a clamping ring screwed on to the reservoir. The cap may be formed of rubber, thin metal, or rigid material adapted to be returned to normal position by a spring. The device is shown applied to a reservoir drawing- pen having a blade 10 secured to a plug 11 closing the end of the reservoir and formed with a passage to permit the flow of ink. The other pen blade is held in position by a peg 14 engaging a recess in the plug 11 and a pin and nut 13, 16. A screw plug 18 and cleaning rod 19 close the ink-feed passage when the pen is not in use.
Patent GB-1386871-A (GB)
Title: Continuous casting plant for slabs
IPC: B22D11/124
Filed: 1972-04-28
Abstract: 1386871 Continuous casting VEREINIGTE OSTERREICHISCHE EISEN-UND STAHLWERKE AG 28 April 1972 [30 April 1971] 19946/72 Heading B3F A continuously cast slab 2 is withdrawn from a water-cooled mould, e.g. from a vertical mould by a straightening stand (4) which also rolls the slab through a guideway, the rollers 3 of which and the slab receiving coolant sprayed from nozzles 6 (at a pressure of 3-8 atmospheres), and as flat jets 12 from nozzles 11, the greater width of each of which jets lies in a plane substantially parallel to the slab surface sprayed by the jet.  The nozzles 11 are located below the adjacent slab surface where the slab is horizontal and, if it has been deflected from the vertical, also where it bends. This makes up for the coolant lost through rebound and gravity. The flattened nozzles 11 each have a 10 Î 4 mm. mouth, and water is supplied at 10 atmospheres pressure. The jet 12 removes impurities such as scale and slag and ensures cooling of the inner side of a roller 3 which is unrotated because the slab 2 has lifted away from it. Nozzles (7), Fig. 1 (not shown), supplied with water and compressed air, direct mist on the outer sides of rollers at the inside of the slab bend. The rollers 3 at the inside of the slab bend are movable to adjust the guideway spacing.
Patent GB-326115-A (GB)
Title: Air compressing systems for road vehicles
IPC: B60K25/10
Filed: 1929-06-29
Abstract: 326,115. Atkins, W. J. June 29, 1929. Actuating pumps by motion of vehicles. - A compressor is actuated by the vibration of a vehicle on which it is mounted through a toothed rack or quadrant gearing with a pinion which operates the crank of the compressor, the piston being caused to make at least one full stroke on the mean vibratory movement of the part from which it is driven. The cylinder 1 is mounted on the chassis 2 and its piston crank shaft 5 rotates in a bracket fixed to the chassis. A pinion 6 on the shaft is driven by a rack 7 pivoted to the fitting 8 which connects the leaf spring to the rear axle; the pump delivers to a reservoir 10. In a modification a quadrant mounted on a rock shaft on the chassis actuates the pinion, the quadrant being connected to a link pivoted to the fitting 8. Motion of the piston beyond the full stroke position may be prevented, e.g. by a " hit and miss" arrangement in which the gear releases the piston beyond this point, reengaging on the return stroke. The compressor may be put out of action automatically on the reservoir pressure reaching a given value, through means controlled by air from the reservoir, and be put in action again by a spring on fall of the pressure.