baber/WOPTO huggingface dataset:
Patent GB-784426-A (GB)
Title: Improvements relating to the preparation and use of desulphurisation catalysts
IPC: B01J37/26
Filed: 1955-03-10
Abstract: Fluorine is introduced into a cobalt molybdate catalyst by reacting the catalyst with benzotrifluoride at a temperature above the boilingpoint of the benzotrifluoride.  The cobalt molybdate catalyst consists of the oxides of cobalt and molybdenum supported on alumina and the process is used to prepare a fluorinecontaining catalyst or to maintain the fluorine content of the catalyst, e.g. at 0.1 to 6 per cent by weight of fluorine. In examples, benzotrifluoride is added to gas oil feed-stock which is subjected to hydrocatalytic desulphurisation by the autofining process.  Specifications 654,152, 663,038, 669,536, 669,552, 669,553, 697,083, 697,222, 697,226, 697,724, and 719,627 are referred to.
Patent GB-660161-A (GB)
Title: Generation of synthesis gas by subterranean gasification
IPC: E21B43/30
Filed: 1949-03-16
Abstract: 660,161. Underground gasification. DERN, S. G. (In Situ Gases, Inc.). March 16, 1949, No. 7203/49. Class 55 (ii). In an underground gasification process for the production of synthesis gas, two air inlet ducts are driven horizontally into the carbonaceous deposit, e.g. coal or oil sand, to meet in a V and a gas outlet duct is driven mid-way between them so as to terminate at the apex of the V, the ducts lying in one horizontal plane, and sharp capes being formed where they meet. The carbonaceous material exposed in the inlet ducts is ignited and oxygen enriched air blown in to maintain the combustion which, as it advances, causes the capes to spall away, the debris blocking the end of the outlet duct with burning embers through which the generated gases must pass to reach the outlet duct. Double inlet ducts 1. and 3 and a double outlet duct 4 are first driven parallel to each other into the deposit, lateral tunnels 5, 6, 7 and 8 then being bored from the ducts 1 and 3 to meet the ducts 4 at a point 11. Fires are started in tunnels 5 and 8 and air charged with oxygen and steam blown into tunnels 1 and 3 by blowers 14 and 15, generatedgas being withdrawn through ducts 4 by an exhauster 20. As combustion proceeds, the sharp capes at the meeting point 11 of the tunnels fall away, a pile of loose burning embers forming at the inner end of tunnel 4. Combustion products are withdrawn through the embers which constitute a reduction zone. The composition of the outlet gas is controlled by adjustment of the amount of oxygen and steam used and, to assist the conversion, powdered or gaseous catalysts may be introduced in the air blast. Alternatively, the gas may be reformed catalytically after leaving the outlet duct 4.
Patent GB-1073982-A (GB)
Title: Carbonising caking coals in fluidised beds
Inventor: ILLSLEY JOHN MICHAEL
IPC: F28C3/16
Filed: 1963-02-22
Abstract: Smokeless briquettes are made from caking coals by blending the latter with a less reactive second carbonaceous material, i.e. a material which on burning produces less smoke per unit weight and exhibits less tendency to cake, heating the blend within the range 350-500 DEG  C. for not more than 1 hour in a fluidized bed, and briquetting while hot.  The second carbonaceous material, which may constitute 15-25% by weight of the total blend, may be a gas coke containing less than 5% by weight volatile matter, a low rank coal, a coal of which the volatile content has been reduced, preferably to less than 25% by weight, or a mixture of the foregoing; char produced during the carbonization may alternatively be used.  The caking coal is preferably a coal or a mixture of coals of rank 300, 400 or 500. In examples, 25-50% of the total volatile content of the coal was driven off during heating.
Patent GB-799730-A (GB)
Title: Double walled shaft column
IPC: E21D5/012
Filed: 1957-03-05
Abstract: 799,730. Shafts. AKT.-GES. FUR UNTERNEHMUNGEN DER EISENUND STAHLINDUSTRIE. March 5,1957 [July 16,1956], No. 7328/57. Class 85 In a double walled shaft lining, movement between adjacent sections 1, 2 is permitted by jointing plates 5 which have their ends secured to the sections, are resilient in the axial direction of the shaft, and are disposed between rings 3, 4 constituting extension of the walls of one of the sections and overlapping the walls of the other section. An annular stop 6, 7, 8 and rings 12 are fixed to the section 2 and co-act with the lower end of the section 1 to limit the movement. The jointing plates are annular and have vertical corrugations which have a maximum depth at the centres of the plates. Plastic material is supplied by a pipe 13 to the space between the sectionse which is enclosed between the jointing plates. Modified jointing plates have corrugations inclined to the horizontal or are dimpled.
Patent GB-1368045-A (GB)
Title: Water-cooled electrical machine
IPC: H02K9/193
Filed: 1973-02-14
Abstract: 1368045 Cooling electric machines KRAFTWERK UNION AG 14 Feb 1973 [17 Feb 1972] 7368/73 Heading F4U [Also in Division H2]  In an electrical machine, e.g. turbo-generator, having water-cooled stator and rotor windings 10, 12 and a shaft pump 7, the windings are connected in a water cooling circuit which further includes a cooling water connection head 5 surrounding the pump 7 and defining a cooling water inlet chamber 4 on one side of the pump and a cooling water outlet chamber 14 and a pressure-reducing water chamber 17 on the other side of the pump there being a sealing device 16 surrounding the machine shaft 6 and disposed between the latter chambers 14, 17 in order to minimize water leakage therebetween, a main cooling water container 1 connected between the inlet and outlet chambers 4, 14 and which in use of the machine is provided with an elevated pressure gas cushion 2, and an intermediate water container 19 which is directly connected to the pressure-reducing chamber 17 to receive therefrom water which has leaked past the sealing device 16 and is connected to the main water container 1 through a pump 28 and in which during such use is provided a gas cushion 20 which is at a pressure slightly higher than atmospheric but lower than that of main water container gas cushion 2. This circuit minimizes the leakage of water from the connection head 5 whilst permitting the use of simple sealing devices, e.g. those operating without physical contact. As shown, a cooling device 9 is interposed in the conduit 8 between the pump and windings, the water being fed to the rotor winding 16 through an axial bore 11 in the shaft 6. The gas cushion 2 is provided by a hydrogen supply conduit 29 and a pressure-reducing valve 30, and communicates via a further pressurereducing valve 31 with the gas cushion 20 whose pressure is limited by a safety valve 32. Water which leaks from the chamber 17 through a further sealing device 21 into a water chamber 22 and is oxygen enriched is fed by a return pump 25 from a collecting vessel 23 via an oxygenremoving device 26 containing a palladium catalyst back to the container 1.
Patent GB-755343-A (GB)
Title: An improved method of and apparatus for the annealing and stress relief heat treatment of rolls for metal rolling mills
Filed: 1954-03-13
Abstract: 755,343. Annealing. SUMMERS & SONS, Ltd., J., YOUNGHUSBAND, K., and WILLOTT, R. L. March 13, 1954, No. 7369/54. Class 72. [Also in Group XI] Rolls for rolling mills are annealed or stress-relieved by heating by electric induction and the strength of the field and the mass of heat insulating material carrying the induction coil so selected that different parts of the rolls are heated to, and maintained at, different temperatures. As shown, a roll is supported on a stool 10 at the centre and two coils 15 wound on thick formers 13 of heat insulating material are placed over the enlarged portion of the roll, while two more coils 15, more closely wound and on thinner insulating material 14 are placed round the ends 12 of the roll. An insulating piece 11 is placed over the roll at the centre and insulating washers 18 may be placed between the centre portion and the end portions. The coils are then connected together and to a source of alternating current. The construction of the parts of the coil are such that the ends of the roll are more strongly heated than the centre portion. The control of the current may be by hand or automatically in conjunction with temperature indicating instruments 1-5.
Patent GB-1490426-A (GB)
Title: Fusion furnaces
IPC: C03B5/20
Filed: 1975-02-21
Abstract: 1490426 Glass furnaces SAINT-GOBAIN INDUSTRIES 21 Feb 1975 [22 Feb 1974 7 Oct 1974] 7370/75 Heading ClM The central part of the surface flow of a glassmelt from the fusion section to the conditioning section of a furnace is diverted downwards by a suspended barrier extending into the surface flow so that it is taken up by the return current therebelow while the side parts of the surface flow continue undiverted. The barrier may obstruct from -2/3 of the width of the flow and may be immersed to the extent of 1/5-¢ of the depth of the glass. The barrier may be cooled by circulating fluid, may be made as an integral whole or as a plurality of separate elements and may be in the form of agitators or a bubble producer.
Patent GB-865250-A (GB)
Title: Improvements in reinforced polythene laminates
Inventor: FRANKLIN GEORGE
IPC: B32B27/00
Filed: 1958-03-07
Abstract: 865,250. Laminates and laminating. FLEXIPANE Ltd. June 1, 1959 [March 7, 1958], No. 7401/58. Class 140. Laminates employable for windows and other purposes are made by so pressing woven wire between two sheets of heat-softened polythene as to cause the sheets to adhere together between the wire meshes. Preferably an unreinforced margin is left. As shown in Fig. 1, sheets 11, 12 of polythene pass around pulleys and over half the circumference of soft rubber rollers 9, 10, to the nip of the rollers where they are softened by infra-red heating at 14 and laminated to woven wire 13. In Fig. 9 the sheets 28, 29 are delivered to endless belts 30, 33 of natural or man-made fibre fabric having a velvet pile, are softened in a heated chamber 37 surrounding the belts and are laminated to woven wire 38 in the nip of belt-carrying rollers 32, 35. The pile of the belts is restored by brushes. The polythene may be transparent, translucent or opaque, and white or coloured. The Provisional Specification refers to " plastic or polythene " sheets.
Patent GB-693067-A (GB)
Title: Improvements in or relating to heat exchangers
Inventor: DEW VIVIAN CHRISTOPHER CHARLES
IPC: F24H1/18
Filed: 1951-03-30
Abstract: 693,067. Hot-water boilers; tubular heat-exchange elements. MAIN WATER HEATERS, Ltd. March 31, 1952 [March 30, 1951], No. 7498/51. Classes 64 (i) and 64 (iii) In a heat exchanger, e.g a gas-heated water heater in which a hot gas flows through one or more conduits surrounded by the fluid to be heated, the wall or walls of the condui or conduits are made of metal of good heat con ductivity, e.g. aluminiun or aluminium alloy, which is pressed to provide a multiplicity of projections on the inner side of a conduit and a multiplicity of depressions on the outer side, each depression being within one of the projec. tions. The projectfions, which are provided primarily to prevent the formation of a stagnant gas film, may be four-sided pyramids. In the water heater shown, the tubular member 21 formed with the projections may be a lining for the tubular wall 12 between the flue and the water jacket, as shown, or may be that wall itself. The flue contains a cylindrical baffle 17 with a cast-iron conical nose 18 at the bottom.
Patent GB-1412486-A (GB)
Title: Recovery of metallurgical slags
IPC: C21B3/06
Filed: 1973-02-15
Abstract: 1412486 Treating slags; cements GRANGES AB 15 Feb 1973 [15 Feb 1972 (2)] 7525/73 Heading C1H and C1K [Also in Division C7] A metallurgical slag is tapped and then treated with carbon and a material containing silicon or aluminium in free or combined form at such a temperature as to prevent foaming and allow metal originally in the slag and that produced by reduction to sediment out. The slag is treated with lime or an aluminium-oxide containing material to make it of suitable composition for addition to Portalnd white or aluminate cement, or as a cement itself.
Patent GB-421263-A (GB)
Title: High frequency self-induction element
IPC: H01F17/04
Filed: 1933-03-13
Abstract: 421,263. Inductances. VOGT, H., 10, Garystrasse, Dahlem, Berlin. March 13, 1933, Nos. 7534 and 7535. Convention dates, Aug. 4, 1932. [Class 37] An inductance coil for frequencies higher than 100,000 comprises a lowmagnetic loss low-permeabilitv core of insulated and compressed particles, or laminµ built therefrom, the core being divided and shaped so as to define a space for the insulated former-wound multi-layer coil windings and when in position the parts of the core together enclose the space. In one construction, Fig. 1, an E-shape core 3 has insulated coil sections 2 carried on its centre limb, a bridge-piece 9 closing the magnetic circuit. In another construction, a U-shape core is provided. The units may be enclosed in a screen provided with terminals and mounting base.
Patent GB-416774-A (GB)
Title: Improvements in the production of artificial marble
IPC: C04B28/04
Filed: 1934-03-09
Abstract: Artificial marble is prepared by mixing equal parts of any ordinary white cement and marble dust and adding thereto a powder having the composition 75 per cent calcium carbonate, 10 per cent calcium oxalate, 3 per cent borax and 12 per cent maize or starch, and allowing the product to set.  The powder is preferably added in the proportion of 5 parts powder to 100 parts of marble dust cement mixture.  Colour may be added if desired.  In an example, a series of differently coloured masses are prepared of the above composition, and spread in layers of uneven thickness in a mould. When the mass has set it is cut into vertical strips.  If the artificial marble is to be applied to a backing, the cutting is done before the set is complete and the material while slightly plastic is pressed on to the backing.  Slabs for fireplaces ornamented by, e.g. rosettes &c., may also be moulded from the composition.
Patent GB-397572-A (GB)
Title: Improvements in or relating to fluid pressure indicators for pneumatic tyres and other inflated bodie
IPC: B60C23/00
Filed: 1932-03-14
Abstract: 397,572. Tyre-inflating apparatus. TURNER & BRO., Ltd., W. and TURNER, W., 44, Eyre Lane, Sheffield. March 14, 1932, No. 7556. Addition to 381,251. [Class 116.] The parent Specification relates to apparatus for inflating tyres or the like to a predetermined pressure, provided with an automatic cut-off operating when the tyre has been inflated to the desired pressure in addition to means for indicating when the passage of the pressure fluid to the tyre has ceased. According to the present invention the regulating apparatus is set for a pressure slightly exceeding that to which the tyre is to be inflated, and an indicating rotor, driven by the passage of pressure fluid, is made subject to the action of a check spring or of an equivalent retarding device, whereby it is caused to stop when the inflation pressure of the tyre is reached. The inflating fluid passes from a pressure supply and regulating apparatus through an inlet A to a rotor chamber having an outlet to a pipe C leading to the tyre to be inflated. One end of the spindle D carrying a vaned rotor B is seated in a conical bearing F in a glass plate G through which the rotor may be observed, whilst the other end is carried in a bearing member E connected by a check spring K to an adjustable member L which is locked in its adjusted position by a nut M. The glass plate G, which may carry a steel boss or plate with a bearing for the end of the spindle D, is mounted in the casing I between sealing rings H.
Patent GB-439667-A (GB)
Title: Improvements in the method of mounting a machine on a support
IPC: B60K5/12
Filed: 1935-03-11
Abstract: 439,667. Machinery beds and frames. AUBAREDE, P. C. A. M. d', St.-Genis Laval, Rhone, France. March 11, 1935, No. 7578. Convention date, March 9, 1934. Addition to 413,092. [Class 80 (iv)] [See also Groups XXXII and XXXI] In the device claimed in the parent Specification, the springs disposed between the machine and the support have a stiffness which is constant up to a certain load and thereafter increases with the load. In the arrangement shown in Figs. 1, 2, and 5, a motor-vehicle engine is supported near the line F-F along which the resultant translational inertia force acts on it by compression springs 34 connected to the engine through arms 36, 37. When the engine tilts owing to the torque which it exerts one of the springs is further compressed so that some of its turns rest on the sound deadening base 39, its stiffness thus being increased, while the other spring expands somewhat but experiences little change in stiffness. Surging is stated to be thus avoided. The engine is supported at the rear by an arm 3 having a transversely-curved end 8 resting on rubberized fabric strips 1, 2 resting on laminated springs 9 secured to projections 4 on the chassis. The arm 3 of the engine is secured to the strips 1, 2 by a bolt 7 secured to a locking plate 6 spaced from the springs 9 by a block 10. The strips 1, 2 may have metal reinforcements. Movement of the front of the engine is limited by a stop, Fig. 25, comprising blade springs 61 carrying a block of rubber 62 adapted to come into progressive engagement with the curved sides 63 of a box fixed to the chassis. The central blade 61 projects through an aperture 65 in the box to act as an indicator to assist in centring the engine. Alternatives to the springs 33, 34 include coil springs of variable pitch or gauge, conical wire compression springs adapted to seat progressively on a conical projection, springs of different diameters resting in containers adapted to seat progressively on a base, blade springs arranged concertina fashion and arranged to seat one after another on stops, conical wire torsion springs arranged to seat progressively on a rotatable cylindrical core and cylindrical wire torsion springs on a conical core, a series of curved hair-pin shaped springs whose legs are arranged to touch each other progressively, and which may be unevenly spaced, a vane rotatable in a rubber block on a casing having two internal projections, a curved shoe resting on a pneumatic cushion, and a curved inverted carriage spring supporting the load at its centre and adapted progressively to engage the flat tops of resilient blocks by which it is supported at its ends. Alternatives to the support shown in Fig. 5 include a vertical bar supported with play between flexible cheeks clamped to the chassis by angle pieces, two flexible strips at right angles, and rubber blocks arranged in cavities formed between the arm 3 and the chassis. Specification 418,359 is referred to.
Patent GB-537201-A (GB)
Title: Improvements in or relating to operating mechanism for friction clutches
IPC: G05G5/06
Filed: 1940-04-30
Abstract: 537,201. Friction clutch operating mechanism. BORG & BECK CO., Ltd. April 30, 1940, No. 7739. Convention date, June 26, 1939. [Class 80 (ii)] Friction clutch operating mechanism, in which the clutch-engaging pressure is applied to a lever 35 by an operator, includes a resilient connection 46 between the lever 35 and the clutch 12 and a latching member 63 associated with the lever 35. The latching member 63 is arranged to lock the lever 35 in clutch-engaging position and to be moved into an inoperative position to allow of clutch disengagement upon movement of the lever 35 beyond the clutchengaging position. As shown, a friction clutch 12 is engaged upon depression of the lever 35 which is pivoted at 37 to a fixed bracket 38, the clutch-engaging pressure being transmitted from the lever 35 through a resilient connection 46 and linkwork 55, 56, 61, 32, 25, sliding sleeve 22 and levers 19 to a pressure plate 14. The link 32 is of adjustable length. The latch 63 is pivoted at 64 to the bracket 38 and has a hook 65 engageable with a finger 45 on the lever 35 and projections 70, 72, engageable with a pin 71 on the lever 35. A tension spring 66 with its ends fixed at 67, 68, to the bracket 38 and latch 63, respectively, tends to move the latch 63 clockwise or anti-clockwise according as to whether its axis is to the right or to the left of the pivot point 64. The resilient connection 46 consists of a cylinder 47 and a headed rod 50, a compression spring 52 being housed between the head 51 of the rod 50 and the end 53 of the cylinder. When disengaged, the parts are positioned as shown in Fig. 1. Upon depression of the lever 35 the clutch 12 is engaged. When full engagement is obtained the spring 66 snaps the latch 63 clockwise to engage the hook 65 with the finger 45. To de-clutch, the lever 35 is depressed still further so that the pin 71 thereon engages the projection 70 and the latch 63 under the action of the spring 66 moves anticlockwise to release the hook 65, as shown in Fig. 4. The lever 35 is then released so that it returns to the de-clutching position. During the final part of this movement, the pin 71 engages the projection 72 and the latch 63 is re-set to the position shown in Fig. 1.
Patent GB-195373-A (GB)
Title: Improvements in connection with coupled vehicles
IPC: B62D13/04
Filed: 1923-03-19
Abstract: 195,373. Jonkhoff, H. W. March 21, 1922, [Convention date]. Compound or articulated road vehicles. -In vehicles in which a loading surface is supported upon two pivotally connected trucks by means of turntables slidable, longitudinally of the trucks, the sliding movement, when travelling on curves, is divided between the two turntables. The loading platform 12 is supported upon two four-wheeled trucks having steering arms 5, 6 coupled to one another by the pivot 3, each steering arm consisting of a spring buffer 5 slid able in a sleeve 6. Points 7 on the spring buffers 5 are connected through the medium of hooks 8 and double cables 10 to springs 11 pivoted at 13 to the loading platform 12. Displacement laterally of the pivot 3 thus flexes the springs 11 and ensures sliding movements of both turntables. Tractive effort is transmitted from the trucks to the load platform through the pivot 3 and springs 11.
Patent GB-102446-A (GB)
Title: Improvements in and connected with Rims of the Wheels of Vehicles.
Inventor: STUNGO JOSEPH
IPC: B60B23/10
Filed: 1916-06-03
Abstract: 102,446. Stungo, J. June 3, 1916. Tyre attachments to rims; detachable - rim attachments to wheels. - A detachable rim is formed in halves A, B connected by pivoted hooks E engaging studs F, and is secured to the wheel I by side flanges G, H and transverse bolts J.