baber/WOPTO huggingface dataset:
Patent GB-1059538-A (GB)
Title: Improvements relating to methods of producing ceramic, dielectric materials and articles produced using these materials
IPC: C04B35/468
Filed: 1964-07-09
Abstract: A ceramic dielectric material consisting of fine crystalline barium titanate and free and/or combined ZnO, is produced by a process comprising the steps of preparing a finely divided (particle size about 1 micron) mixture of a <PICT:1059538/C1/1> starting material consisting wholly or substantially of barium titanate, any remainder of starting material being BaCO3, BaO, TiO2 and/or compounds of these oxides, and an addition comprising ZnO, Zn2TiO4, a barium zinc titanate and/or TiO2 together with one or more of these zinc-containing compounds and sintering to compactness, the compositions and quantities of the starting material and addition being such that the molar ratio BaO : TiO2 in the product has values from 100 : 100 to 100 : (100 + 7X) wherein X is the molar percentage of free and combined ZnO in the product and has values from 0.5 to 5. The addition may contain free TiO2 and/or free ZnO and the starting material preferably has a molar ratio BaO : TiO2 of 100 : 96 to 100 : 108.  The sintered product may contain 1-4 mol. per cent of free and/or combined ZnO; the combined ZnO may be present as Zn2TiO4, BaZn2Ti4O11 or Ba2ZnTi5O13.  The composition of the sintered material lies within the area AA1D1D of the ternary composition diagram shown in Fig. 2.
Patent GB-260110-A (GB)
Title: An improved process for restoring plaster of paris to its original state after the addition of water and use
IPC: C04B11/02
Filed: 1925-11-11
Abstract: 260,110. Lovatt, A. E., Mitchell, F. M., and Mitchell, E. A. Nov. 11, 1925. Calcium sulphate.-Plaster of Paris which has been used for pottery moulds &c. is restored to its original state by the following means. The exteriors of the moulds or other objects are cleaned, the moulds &c. are then steeped in water until thoroughly saturated and are slowly dried at a moderate temperature, e.g. at 60‹ C. for 48 hours. The furry coating of impurities thus brought to the surface is removed by scraping, brushing or washing. The moulds &c. are then subjected, preferably in the form of lumps or granules, and disposed in one or more layers, to heat treatment in an externally-heated oven or chamber at about 170‹ C. for approximately half an hour, to drive off surplus water and cooled either in the heating-chamber or in a separate chamber preferably previously warmed. The treated material is finally finely ground ready for re-use, and may be screened or sieved. According to the Provisional Specification, the moulds &c., after removal of the furry coating, are ground down to granules which will pass through a wire screen of fifty meshes to the inch, and the treated material is finally ground until it will pass through a wire screen of two hundred meshes to the inch.
Patent GB-913369-A (GB)
Title: Method of applying highly heat-resistant protective coatings to metallic surfaces
IPC: C23C26/00
Filed: 1960-08-17
Abstract: In the method of the parent Specification, the non-metallic base coating is formed in the presence of reactive oxygen at the surface of the metal objects.  The reactive oxygen may be introduced in the free form or in the chemically-bound form, e.g. as water bound to the oxide or hydroxide, or as an oxygen-containing compound which decomposes on heating, e.g. a higher oxide or hydroxide, carbonate, chromate or molybdate.  The rate at which the oxygen diffuses away from the reaction zone may be retarded by embedding the objects, after application of the oxide and/or hydroxide thereto, in a powdered substance such as an oxide of magnesium, aluminium, calcium, titanium or silicon.  In the examples, (1) iron-silicon strip is coated with MgO+Mg(OH)2, embedded in powdered MgO, heated at 1050 DEG C., then phosphated, (2) iron-silicon strip is coated with Al2O3, MgO and MgCO3, heated to drive off water, embedded in argillaceous earth, heated at 950 DEG  C., and then phosphated, and (3) iron-silicon sheet is coated with MgO, Mg(OH)2, CrO3 and BaO2, dried at 300 DEG C., heated at 900 DEG  C., and then phosphated.
Patent GB-159558-A (GB)
Title: Improvements in railway sleepers
IPC: E01B9/14
Filed: 1919-11-18
Abstract: 159,558. Willis, P. R. J., (Long, U. 0.). Nov. 18, 1919. Spikes, serrated. - Rails are secured to metal supports of concrete sleepers by serrated spikes 27 and wedges 25 which bed against resilient strips 28 of soft metal, hard wood, &c., the spikes being grooved to receive lead 29 to prevent entry of moisture. At rail joints one fish plate 32 is formed integral with its spike.
Patent GB-799074-A (GB)
Title: Improvements in or relating to shoe-bottom pressing apparatus
IPC: A43D25/10
Filed: 1955-10-07
Abstract: 799,074. Shoe bottom presses. BRITISH UNITED SHOE MANUFACTURING CO., Ltd., and GERMANY, N. V. Oct. 8, 1956 [Oct. 7, 1955], No. 28583/55. Class 17(1) A device for use in a shoe bottom press comprises a pair of members 2, 4 arranged respectively to press at opposite sides of the shoe bottom, and joined by connecting means 6, 8 to which they are pivoted, so that the members may tilt independently to accommodate themselves to the contours of the work. A number of such devices are arranged side by side on a water bag, and form the intermediate portion of the pad, between the heel and foreparts. The members may rise and fall bodily with the connecting means. The pivot pins 16 pass centrally through portions of the member reduced at 10 and 12, and are secured to the metal &c. strips 6, 8. The spacing of the latter is such that members 2 and 4 may tilt freely, and that when the devices are arranged side by side the plates 6, 8 only of adjacent devices engage. Members 2 and 4 are spaced apart, lengthwise of strips 6, 8, and their lower edges are cut away at 22, 24 each side of the pivot. Specifications 408,953 and 479,480 are referred to.
Patent GB-603798-A (GB)
Title: Improvements in and relating to high temperature elastic fluid turbines
IPC: F01D5/08
Filed: 1945-10-30
Abstract: 603,798. Gas turbines. BRITISH THOMSON-HOUSTON CO., Ltd. (General Electric Co.). Oct. 30, 1945, No. 28728. [Class 110 (iii)] To supply cooling air to hollow blades which are mounted on a solid turbine disc and have radial channels extending through their tips, a rotatable plate is attached to the inlet side of the disc to form with it a cooling space to which the radial channels are connected and means are provided to circulate cooling air through the space and channels. The exhaust gas turbine shown, Fig. 1, has two plates 12, 16 welded to the disc 1 to form cooling spaces 26, 27 and has hollow blades 2 through which the cooling air passes to the duct 41 on its way to the atmosphere. Cooling air is supplied to the spaces 26, 27 from a duct 10 formed between the bearing 4 and the annular plate 9. The clearance space between the nozzles 7 and blades 2 is sealed from the duct 10 by a plate 30 welded at its outer edge to the nozzle inner support ring and provided with a two-tie. labyrinth packing at its inner edge which prevents leakage along the turbine shaft 3 and the inner edge of plate 16. Two radially spaced shrouds 20, 21 provided at the tips of the blades form a passageway 22 which is'used to convey working fluid leaking outwardly from the clearance space between the nozzles and. blades back into the exhaust gas stream. The part of this leakage which does not pass through the passageway 22 is cooled by mixing with the cooling air from the blades in the duct 41 before passing to atmosphere. The passageway 22 may be provided with blades to pump the gases through it. The cooling spaces 26, 27 are connected by ducts 28 in the disc 1 and the turbine is controlled by regulating the amount of gas passing through a bye-pass 8. The blades 2 are welded to the disc 1. The cooling air supply to the duct 10 may be supplied from a vane diffuser on the front of the aircraft facing the slipstream.
Patent GB-261416-A (GB)
Title: Machine for shaping and grinding stones for blast furnaces
IPC: B24B17/02
Filed: 1926-11-15
Abstract: 261,416. Deutsch - Luxemburgische Bergswerks-und Hutten Akt.-Ges., and Kosfeld, W., (Assignees of Donath, H.). Nov. 16, 1925, [Convention date]. Copying.-In a machine for grinding or cutting stones for lining blast-furnaces, the stone is carried on a table c reciprocated on rollers b of a rack-gearing. The rotary grinding roller i is carried on a yoke g pivoted in a horizontal bearing on a shaft f vertically adjustable by screws q<1>. Templets m secured to the table contact with rolls on the grinding drum shaft to position the grinding drum as the work reciprocates.
Patent GB-766389-A (GB)
Title: Rock-piercing blowpipe
IPC: E21B7/14
Filed: 1954-10-07
Abstract: 766,389. Flame drills. UNION CARBIDE & CARBON CORPORATION. Oct. 7, 1954 [Oct. 16, 1953], No. 28877/54. Class 68 (1). [Also in Group XI]  An internal combustion blow pipe using a fluid fuel and an oxidising gas, the discharge passage from the combustion chamber 45 comprises a succession of outwardly divergent passages connected by outwardly convergent passages, whereby the inlets of the successive divergent passages from throats of progressively larger cross sectional area. In cooperative engagement with the mouth of the combustion chamber 45 is a member N comprising in down stream order a cavity 63 converging from the mouth of the combustion chamber towards a throat 98a leading into a divergent passage 68 which is joined by a converging passage 70 and a second throat 98b to a second divergent passage 64 terminating in an opening of the same diameter as the mouth of the combustion chamber. A nozzle tip member has a cavity 74 converging from a mouth adapted to have a co-operative engagement with the opening of the second diverging passage 64 in the intermediate member to one or more throats each of which leads into a divergent outlet passage p<SP>1</SP>, p<SP>2</SP>. The member N may be interchangeable with other members having a differing number of converging- diverging passage sections.
Patent GB-534090-A (GB)
Title: Improvements in or connected with mechanical loading apparatus
IPC: B65G65/00
Filed: 1939-10-28
Abstract: 534,090. Loading in mines &c. MYLES. A. R. Oct. 28, 1939, No. 28914. [Class 78(i)] Mechanical loading apparatus comprises gathering-mechanism movable about a horizontal pivot to follow the diminishing heap of material downwards, and adapted to feed the gathered material rearwards to an elevating loader conveyer which picks up at ground level and delivers to a vehicle, for example a mine truck. As illustrated, a loading conveyer A of endless-belt, scraper or worm type is fed by combined auxiliary conveyer and gathering mechanism which swivels as a unit about the vertical axis 3. The gathering mechanism, for instance a scraper conveyer 16 carried by a boom E, pivots about the point 15 so that it rests on the heap of material and follows it down as the heap diminishes. The gathered material is delivered to the main conveyer by the scraper-bucket conveyer 12 which pivots about a horizontal axis and is driven by the motor 13. The digging of the blades 19 into the material on the under run is said to advance and keep the whole appartus up to the work as the loading proceeds. Cutter wheels 26 may be fitted to the boom to make a channel for the scrapers 19 to work in.
Patent GB-256565-A (GB)
Title: An improved facing material for walls or other surfaces
IPC: C09D5/28
Filed: 1925-11-17
Abstract: 256,565. Marlier, A. Aug. 4, 1925, [Convention date]. Paints.-A facing-material for walls and other surfaces comprises lithopone, chalk, white cement, gypsum, white sand, diamantine (powdered glass), linseed oil, white spirit, driers, and colouring matters such as yellow ochre and colcothar. The material is applied by strippling with a brush. While it is still soft it is worked over with a spatula, and when sufficiently hard, sandpapered.
Patent GB-974601-A (GB)
Title: Semi-conductor arrangement
IPC: C30B15/00
Filed: 1962-07-27
Abstract: Material for a semi-conductor device comprises a solid solution of two AIV BVI compounds and one AI BV CVI2 compound of the general formula: <FORM:0974601/C6-C7/1> with 0 < x, y < 1. Specific embodiments include (Ag0.35 Pb0.15 Sn0.15 Sb0.35)Te and a similar solid solution in which the Sb is replaced by Bi. The selection of Ag, Pb, Ge, Sb and Te specifically for A, B, C, D, E respectively in the general formula is also described.  The material is prepared by fusing the pure elements in an exhausted quartz ampoule and then subjecting the material to a zone melting process.
Patent GB-443606-A (GB)
Title: Improvements in or connected with hinged stays for swing mirrors, casements and other swinging objects
IPC: A47G1/24
Filed: 1934-10-10
Abstract: 443,606. Stays for hinged articles. WARSHAWER, N., 321, Old Street, London. Oct. 10, 1934, No. 29019. [Class 65 (i)] A hinged stay for swinging objects such as a swinging mirror 10 comprises two brackets, one of which 8 carries a hingedly connected stay bar 9 and is connected to the mirror, while the other bracket 1 is connected to the fixed frame of the mirror and carries a box-like member 1<b> having a hole in one wall 1<e> through which projects a spring-pressed hemispherical member or ball 6 ; a wall 1<d> fixed adjacent and parallel to the wall 1<e> of the box forms a slot 5 open at the top, in which the stay bar 9 may be inserted, the member 6 then serving to press the bar against the wall 1<e> to hold it in any position. The bar 9 may be slotted and is provided with a projection 9<c> which prevents the bar sliding completely through the slot 5. The hemispherical member 6 may be pressed outwards by a U-shaped, flat or helical spring, or if a ball is used, the hole in the wall 1<e> is of conical shape and of such diameter as to retain the ball with a part projecting into the slot 5.
Patent GB-225052-A (GB)
Title: Improvements in and relating to anodes for use in electro-plating
IPC: C25D17/10
Filed: 1923-11-19
Abstract: 225,052. Jones, G. Nov. 19, 1923. Supporting electrodes.- An anode for use in electroplating of the type comprising a hollow box having perforated walls b of celluloid and closed at its upper end by a metal stud e with means f for suspending the anode is characterized by having at one or more points an apertureg with a funnel mouth through which plating metal in divided form is introduced into the anode. Current is converted through the strip e to the divided metal j.
Patent GB-1186365-A (GB)
Title: Improvements in or relating to Thin Film Magnetic Stores
Inventor: DAIN CHARLES STANFIELD RUTHERF
IPC: G11C11/15
Filed: 1966-06-29
Abstract: 1,186,365. Magnetic storage arrangements. ELECTRIC & MUSICAL INDUSTRIES Ltd. 29 June, 1967 [29 June, 1966], No. 29178/66. Heading H3B. [Also in Division H1] A thin film magnetic store with non-destructive read-out comprises a matrix of storage devices each consisting of a circular element 1a-4a of isotropic magnetic material of relatively low coercive force, and a substantially concentric elongated element 1b-4b of anisotropic magnetic material of relatively high coercive force adjacent the circular element, the easy axis of the elongated element extending along its larger dimension. Preferably the elongated element is rhombic as shown so as to conform with the domain shape. Information stored in the matrix is read-out non-destructively by passing current through a word conductor A1, A2 sufficient to rotate the magnetic vector of the associated circular elements without disturbing the magnetic state of the elongated elements. The sense of flux rotations and hence the word stored is detected by sense conductors S1-S2. A higher value of word conductor current rotates the magnetic vectors of both elements of each device to give destructive read-out, new data being entered by passing overlapping currents through divided digit conductors D1-D2.
Patent GB-617006-A (GB)
Title: Improvements in or relating to measuring and/or marking devices
IPC: B25H7/00
Filed: 1946-10-01
Abstract: 617,006. Marking-out dovetails. THRELFALL, E., and EVANS, J. Oct. 1, 1946, No. 29191. [Class 61 (ii)] A device for marking out evenly spaced dovetails comprises a number of parallel strips a connected lazy-tongs fashion for parallel movement by links b and pivots c, one of which has a lock-nut g for securing them in set position, the ends a<SP>1</SP> of the strips being bent over at right angles and cut to dovetail shape and also slit at h for use when narrower dovetails are required.
Patent GB-867442-A (GB)
Title: Improvements in the removal of water from resinous compositions
IPC: C08G4/00
Filed: 1958-09-12
Abstract: In order to minimize the evolution of lachrymatory gases during the curing, in the presence of acid curing agents, of unsaturated spirobi (m-dioxane) compounds, water is removed from the material such that less than 0,05% of water by weight remains.  In carrying out the invention, the A-stage resin, which is the reaction product of pentaerythritol and an a -b  olefinically unsaturated aldehyde in the presence of an acid catalyst, is heated to 124 DEG C. to 210 DEG C. at a pressure of 3 mm. to 50 mm. of mercury and water is distilled off until less than 0,05% water by weight remains.  The A-stage resin may then be cured by the addition of an acid curing agent.  The preferred a -b  olefinically unsaturated aldehydes are those containing 3-6 carbon atoms such as acrolein, a -chloroacrolein, a -methyl acrolein, crotonaldehyde, a -chloro crotonaldehyde and methylcrotonaldehyde.  In the examples hydrochloric acid is used as the acid catalyst and alkane sulphonic acid as the curing agent.
Patent GB-903254-A (GB)
Title: Improvements in or relating to toothed gearing
Inventor: ASH DENNIS JOHN
IPC: F16H57/021
Filed: 1958-09-12
Abstract: 903,254. Toothed gearing. INTERNATIONAL COMPUTERS & TABULATORS Ltd. Aug. 12, 1959 [Sept. 12, 1958], No. 29251/58. Class 80 (1). To reduce shocks in gear trains an intermediate gear 3 between gears 2 and 4 is of ring form and rotatable on a fixed shaft 5 which has portions of its surface cut away at 6 and 7 adjacent the points of contact of the gears to allow resilient radial deflection of the ring gear 3 at these points. Specification 780,869 is referred to.
Patent GB-356514-A (GB)
Title: Improvements in or relating to the sealing of cylinder liners in internal combustionengines
IPC: F02F11/00
Filed: 1930-09-30
Abstract: 356,514. Cylinders. SWISS LOCOMOTIVE & MACHINE WORKS, Winterthur, Switzerland. Sept. 30, 1930, No. 29266. Convention date, Sept. 30,1929. [Class 7 (ii).] A tight joint between a cylinder head 4 and liner 1 is produced by a hard metallic packing 7 and a resilient rubber packing 8 and the annular space between the packings is drained by a pipe 13 extending to the cylinder base. A further rubber packing 12 is also provided. The Specification as open to inspection under Sect. 91 (3) (a) comprises also draining the annular space by a horizontal pipe passing through a stuffing box in the outer casing of the cylinder head. This subject-matter does not appear in the Specification as accepted.
Patent GB-1394625-A (GB)
Title: Tensioning and fastener device for tensioning straps or bands
IPC: B65D63/08
Filed: 1973-06-20
Abstract: 1394625 Tensioning devices HERBERT SEHLBACH KG 20 June 1973 [27 June 1972] 29305/73 Heading F2G A device for tensioning and fastening two straps or bands 15, 16, e.g. to encircle a member, comprises connector and lever portions 11, 10 releasably connected by a pair of swivel joints 12 which each include male and female portions and guide passages 47 each receiving the other joint part. As shown, the straps 15, 16 are looped through apertured web portions 27, 28, 17, 18 extending between side cheek portions 14, 13 in which the swivel joints are formed by blanking the sheet metal from which the device parts are integrally made. Each swivel joint comprises a bearing ring (44) (Fig. 4, not shown) partly surrounded by a raised rim (45) on the lever 10 which engages a short bearing pin (43) on the connector 11 after being guided along the J-shaped passage 47. The straps are tensioned by swinging the lever in the direction 39 until the parts are aligned. The tension of the strap 15 at the end edge 32 of the lever passes through a dead centre position and so keeps the parts aligned and flat against an encircled member (41) (Fig. 3, not shown).
Patent GB-427486-A (GB)
Title: Improvements in and relating to appliances for playing tivoli billiards and like games
IPC: A63D13/00
Filed: 1933-10-24
Abstract: 427,486. Game apparatus; advertising; making billiard and like boards; moulding plastic substances. GOWLAND, J. P., Shotley, Cheapside. Woking, Surrey. Oct. 24, 1933, No. 29395. [Class 132 (ii)] [See also Groups V, XVIII, and XXII] Table or portable game-apparatus of the type in which balls are projected on to a board provided with hazards and enclosures is formed in one piece by moulding, pressing or casting from synthetic resin, hard rubber, papier mÔchÚ, or metal. In the construction shown in Figs. 1 and 2, the board 1, surrounding wall 2, 3, 4, 5, the coloured or numbered devices 15 for trapping the balls, the supports 3 for tilting the board at a convenient angle, the hazards 16, 17 in the form of cones or frustums of cones, and the channels 8, 9, are all formed in one piece by moulding, pressing, or casting from synthetic resin, hard rubber, papier mÔchÚ or metal. The channels 8 and 9 are inclined with respect to the surface of the board. The striker 10 projects through an aperture in the wall 5 and is carried by a leaf spring 11 secured to the wall 5 by a screw 12. The top end of the channel 8 is slightly raised at 14 above the board surface to prevent return of the balls. An integrally moulded projection 18 is provided for deflecting the ball. A transparent cover 19 of celluloid, cellulose acetate or transparent resinous material rests on the flat top surfaces of the devices 17 and is secured to the board by nails 20. The cover 19 may be printed or embossed with numerals, words, advertising designs or figures. Sufficient space is allowed between the top of the wall of the channel 9 and the cover 19 to permit balls to pass therebetween when the board is inverted. The hazards 16, 17 may be in the form of bars, figures, animals, birds, or rocks. Grooves may be used to divert the balls. The traps 15 may be formed as cups, or a hole may be provided in each trap and a rotatable disc bearing numbers affixed to the underside of the board 1 for exposing a changeable scoring number through the hole in the trap.
Patent GB-1194683-A (GB)
Title: Improvements in or relating to Devices for Modifying the Paths of Continuous Rods
IPC: A24C5/31
Filed: 1967-06-27
Abstract: 1,194,683. Cigarette-making machines. SERVICE D'EXPLOITATION INDUSTRIELLE DES TABACS ET DES ALLUMETTES. 27 June, 1967 [27 June, 1966], No. 29490/67. Heading A2C. In a continuous-rod cigarette-making machine, the travelling rod 4 is diverted by one of five blades 3 on a rotatable drum 2 on partial rotation of the same and simultaneously broken off by the end of the blade 3 downstream of the direction of travel f 1  of the rod 4. Subsequently, on a further partial rotation of the drum 2, the diverted rod is cut by the other end of the blade 3 co-operating with a stationary plate 35, the rod 4 then returning to its normal un-diverted path passing between two adjacent blades 3 towards the cigarette cut-off. The device may be used for diverting the rod 4 and returning it to its normal path when stopping and starting the machine respectively, or for sampling the rod 4 during normal running. Rotation of the drum 2 is effected by drive through an electromagnetic clutch 7 to a reduction gear 9 that incorporates means to limit rotation of the drum to one of two alternating increments. A suitable electrical control circuit is disclosed.