baber/WOPTO huggingface dataset:
Patent GB-1467076-A (GB)
Title: Sintered anodes for capacitors
IPC: C22C1/04
Filed: 1974-02-07
Abstract: 1467076 Sintered anodes LIGNES TELEGRAPHIQUES ET TELEPHONIQUES 7 Feb 1974 [19 Feb 1973] 05650/74 Heading C7D A sintered anode for a solid-electrolyte capacitor is made from a powder mixture of a pure, filmforming metal powder, i.e. Ta or Nb, and at least one other powder containing at least one of N, W, Mo, V, Hf. Preferably, both or all of the powders contain the film-forming metal powder, e.g. a mixture of Ta with Ta containing up to 20,000 ppm Mo. The mixed powders are subsequently pelletized and sintered, e.g. at 1850C for 30 mins. A binder, e.g. stearic acid, may be added at the mixing stage.
Patent GB-655762-A (GB)
Title: Improvements in or relating to internal combustion engines operating with exhaust gas turbines and air compressors
Inventor: BERTIN JEAN
IPC: F02B33/00
Filed: 1948-02-25
Abstract: 655,762. Pumps; ports; valve gear. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. Feb. 25, 1948, Nos. 5661 and 5662. Convention dates, Feb. 27, 1947 and Jan. 26, 1948. [Classes 7(ii) and 7(vi)] [Also in Group XXVI] In a power plant comprising an internalcombustion piston engine and an exhaustdriven turbine, and in which a scavenging air compressor delivers air to the cylinder at a pressure at least equal to the pressure in the cylinder at the beginning of exhaust, a sleeve valve opens inlet and exhaust ports, arranged at different levels, simultaneously before the end of the working stroke of the piston, and closes them simultaneously before the end of the compression stroke, and the turbine is designed to work between a constant admission pressure equal to that in the cylinder at the beginning of exhaust, and atmospheric pressure. As shown applied to a two-stroke engine, exhaust ports 11, Fig. 4, are provided at the upper end of the cylinder and admission ports 12, 13 at the lower end and in the middle respectively, and a sleeve valve 17 has corresponding ports 11a, 12a, 13a. The sleeve valve is driven by an epicyclic gear shown diagrammatically in Fig. 6. A pin 18 on the valve is connected to a crank 23 by a spherical and sliding joint, the crank being on a shaft mounted in bearings 24 and rotated by a pinion 29 which engages a fixed pinion 19. The bearing 24 is carried by a casing 22 having teeth engaged by a gear wheel 27 rotated on a shaft 28 at engine speed. The locus of the pin 18 is shown in Fig. 7, the point O corresponding to the top dead centre of the piston. The timing is adjusted by varying the position of the fixed pinion 19.
Patent GB-536508-A (GB)
Title: Abrasive wheel
IPC: B24D7/00
Filed: 1940-03-29
Abstract: 536,508. Abrasive wheels. NORTON GRINDING WHEEL CO., Ltd. March 29, 1940, No. 5725. Convention date, March 29, 1939. [Class 60] [Also in Group V] An abrasive wheel for grinding cemented carbide cutting tools &c. comprises a cured organic backing 30, Fig. 5, interlocked at 22 with a backing 20, consisting of at least 95 per cent. metal, and an abrasive portion 21, integral with the backing and consisting of abrasive grains bonded with metal which comprises 50 per cent. by volume of the portion 21. The part 30 may consist of natural or artificial resin or hard rubber, the part 20 of copper with another metal or element which will make it brittle as described in Specification 479,790, [Group V], and the part 21 of material similar to that used for the part 20 with the addition of 25 per cent. by volume of diamonds, fused alumina, emery, corundum, silicon carbide, boron carbide, or the last two materials fused together. Powder for making the part 20 is placed in a mould comprising parts 10, 11, 13, 14, Fig. 3, in such quantity that, when pressed by a ring 12 in a press, a pressure of about 12,500 pounds to the square inch is produced. After pressure has been applied, the ring 12 is removed and material for the part 21 introduced in such quantity that when again pressed a pressure of about 50,000 pounds is produced. The pressed compound ring 20, 21 is removed and heated to about 500‹ C. for five hours in a reducing or inert atmosphere. Recesses, such as turned under-cut grooves 23, Fig. 5, are then formed in the exposed face of the part 20 and the compound ring is placed, with the recessed face upwards, in the mould, inverted as shown in Fig. 5. Powdered resin or the like 30 is then introduced and pressed by a ring 29. In the case of phenol formaldehyde moulding-powder a pressure of about 6,000 pounds per square inch and temperature of 160‹ C. for half an hour may be used.
Patent GB-369355-A (GB)
Title: Improvements in and relating to spectacles
IPC: G02C5/06
Filed: 1931-02-24
Abstract: 369,355. Spectacles. WILLMANN, K. and MEITZNER, O., (trading as WILLMANN & CO.), Rathenow, Germany. Feb. 24, 1931, No. 5770. Convention date, Feb. 24, 1930. [Class 97 (i).] The bridge 1 of a pair of spectacles is formed on one or on each side with a recess 2 and the recesses are fitted with insertions of celluloid, horn, galalith, &c.
Patent GB-1174343-A (GB)
Title: Life Jackets.
Inventor: GINGELL ALEC WILLIAM CHARLES
IPC: B63C9/115
Filed: 1967-02-07
Abstract: 1,174,343. Life jackets. DREAMLAND ELECTRICAL APPLIANCES Ltd. 7 Feb., 1967, No. 5859/67. Heading A3V. A reversible lifejacket has back and front buoyancy pockets 30 and 32 respectively, the pockets 32 extending partially round the armhole 24, and is secured on the wearer by tie tapes 26 attached to the jacket fronts in the region of armholes and tied outside the jacket fronts. A hoisting strap 20 passes down through channels 18 to a hem 12 where it is secured to the layers 4 of the jacket and to a waist band 14. Further tapes 22 are secured to a non- buoyant portion 10 of the jacket.
Patent GB-801760-A (GB)
Title: Improvements in devices for extinguishing circuit-breaker arcs
IPC: H01H9/34
Filed: 1956-02-24
Abstract: 801,760. Arc-rupturing in switches. TELEMECANIQUE ELECTRIQUE. Feb. 24, 1956 (Aug. 29, 1955], No. 5910/56. Class 38 (5). The walls 4 of an arc-shoot are shaped so as to form a convergent nozzle 5 which discharges through narrow passages into expansion chambers from which the arc products are exhausted. In the arrangement shown, expansion chambers 10 are formed in the walls 4 of the arc-shoot and narrow passages 8 are provided between the end 9 of the nozzle and an insulating member 7, exhaust openings 11 from the chambers 10 being provided at the top of the are-shoot. Arc-splitting fins 6 are arranged in the nozzle 5 and a magnetic blow-out coil 2 surrounds an insulating reel 13 on a magnetic core 14 interconnecting pole plates 12. Fig. 3 (not shown) illustrates a modification in which the expansion chambers are formed between the walls 4 and a U-shaped member 7.
Patent GB-408435-A (GB)
Title: Improvements in or relating to the undercarriages of aircraft
IPC: B64C25/20
Filed: 1933-02-27
Abstract: 408,435. Aircraft landing - gear. FAIREY AVIATION CO., Ltd., Cranford Lane, Hayes, WILLIAMS, D. L. H., Hillside, Swakeley's Road, Ickenham, and CHARNLEY, J. S., Beaumaris, North Hyde Road, Hayes, both in Middlesex. Feb. 27, 1933, No. 5958. [Class 4.] The landing wheel of an aircraft is carried by a frame 12 supported by a rotary shaft 13 and normally stayed by a knuckle-jointed radius rod 14 pivoted to the wing at 14<a>, means being provided for sequentially withdrawing a locking-pin 16, breaking the joint, and rotating the shaft 13 to raise the wheel into the wing. Preferably the members 12, 14 are duplicated and the wheel is carried between them. A pneumatic or hydraulic cylinder 18 acts on two levers 19, Fig. 4, on two sleeves 20 having slots 22 in which engage pins 21 on the shaft 13. Two levers 23 on the sleeves 20 are connected by cables 24 to the pins 16 on the two rods 14 so that the pins are withdrawn and the joint broken before the pins 21 engage the ends of the slots 22 to cause rotation of the shaft 13. The shaft 13 is connected to sleeves 26, Fig. 2, sliding on rods 27 against the action of shock absorbers 29.
Patent GB-770797-A (GB)
Title: Improvements in the purification of terephthalic acid dimethyl ester
IPC: C07C69/82
Filed: 1955-03-01
Abstract: Dimethyl terephthalate is purified by mixing the vapour of the impure ester with the vapour of an auxiliary liquid of lower boiling-point in which the ester is only slightly soluble at room temperature but in which impurities are readily soluble, coating the vapour mixture to a temperature at which the ester and the bulk of the auxiliary liquid condense, said temperature being below the melting-point of the ester, and separating the crystalline dimethyl terephthalate thus precipitated from the auxiliary liquid.  Auxiliary liquids specified are acetone and methanol.  The vapours may be mixed at atmospheric, increased or reduced pressures by leading preheated auxiliary liquid vapour over or through the molten ester or by direct mixing of vapours. The mixed ester and auxiliary liquid vapours may be passed over an absorbent such as active carbon and/or fractionated before condensation in a cooler or by spraying in cold auxiliary liquid. The ester is then separated by filtrating or centrifuging the condensate. The auxiliary liquid recovered may be recycled to generate further vapour after optional fractionation.  An example is given.ALSO:Dimethyl terephthalate is purified by mixing the vapour of the impure ester with the vapour of an auxiliary liquid of lower boiling point in which the ester is only slightly soluble at room temperature but in which impurities are readily soluble, cooling the vapour mixture to a temperature at which the ester and the bulk of the auxiliary liquid condense, said temperature being below the melting point of the ester, and separating the crystalline dimethyl terephthalate thus precipitated from the auxiliary liquid.  Auxiliary liquids specified are acetone and methanol.  The vapours may be mixed at atmospheric increased or reduced pressures by leading preheated auxiliary liquid vapour over or through the molten ester or by direct mixing of vapours. The mixed ester and auxiliary liquid vapours may be passed over an absorbent such as active carbon and/or fractionated before condensation in a cooler or by spraying in cold auxiliary liquid. The ester is then separated by filtering or centrifuging the condensate.  The auxiliary liquid recovered may be recycled to generate further vapour after optional fractionation.  An example is given.
Patent GB-1113844-A (GB)
Title: Improvements in and relating to clerical collars
IPC: A41D27/18
Filed: 1967-02-08
Abstract: 1,113,844. Clerical collars. D. M. WILLIAMS. 8 Feb., 1967 [11 Feb., 1966; 7 April, 1966 (2)], No. 6123/67. Heading A3V. [Also in Division E2] A clerical collar assembly comprises a mounting member secured to a front and a collar member terminating short of the ends of the mounting member, and detachably secured to the mounting member. As shown, a mounting member 12, stitched to a front 14, is fastened by means of filamentary hook and loop fastening strips 18, 19, carries a double flanged collar 11, detachably connected to it by means of tabs 23 and keepers 18 and 25, and encloses a stiffening strip 13 visible at 15 to enable the mounting member to be used as a tonsure collar when the collar 11 is detached. In one alternative embodiment the collar is only half the width of the mounting member; in another, Fig. 6 (not shown), the mounting members (12b) for the double flanged collar (11b is continuous but an additional mounting member (12f) formed with a gap (15b) allows the collar (11b) to be seen. In a fourth embodiment, the inner flange (20c), Fig. 8 (not shown), is of less width than the mounting member (12c) and each end of the outer flange (21c) has a tongue (23c) to engage under edges (28) on the member (12c) (which is not long enough to fasten at the back of the neck and carries press studs (29) to engage press studs on each side of the neck opening of a shirt.
Patent GB-1211607-A (GB)
Title: An improved electro-hydraulic control system for a prime mover
IPC: F01D15/04
Filed: 1968-02-08
Abstract: 1,211,607. Steam turbine plant. GENERAL ELECTRIC CO. Feb. 8, 1968 [Feb.20, 1967], No. 6203/68. Headings F1Q and F1T. [Also in Division G1] A steam turbine 1, Fig.1 having forwardand reverse stages 4, 5 has forward and reversing valves 6, 7 actuatable together in opposite directions by racks and pinions 25, 26, which can be selectively clutched or declutched by a logic unit Fig. 2 (not shown) at 28, 29, to a common electro-hydraulic power amplifier 16 to produce movement of one or both valves in response to a selected one of two input valve positioning signals at 21, 22. The valve positioning signals represent respectively the desired settings for valves 6 and 7; and are obtained through synchro channels CX, CDX, CT from cams 21, 22 which introduce required non-linearities into the two signals obtained from the one output of a further synchro channel comprising a receiver 20 and a transmitter 8 or 9 depending upon the position of a switch 12. The further synchro channel includes a fast rate facility (86), Fig. 4 (not shown) to enable rapid changes in valve setting to be called for if necessary; and the other two synchro channels include variable transformers CDX, which are adjustable by overspeed relays 13,14 responsive to turbine speed, to reduce the demanded speed. The logic unit (31), Fig. 2 (not shown) receives inputs from bridge control 8, engine room control 9, the ahead and astern overspeed relays 13,14 actual ahead and astern valve positions 25, 26 and the switch 12. The unit causes (i) a diode switch 15 to select that input which calls for closure of a valve and apply it to an amplifier 7 driving a pump 18 and servomotor 19, constituting the electrohydraulic amplifier 16; and (ii) the clutch drive 30 to operate the clutch to the valve to be closed, and then, when a predetermined degree of closure is reached, to operate the other clutch so that the other valve starts opening while the first valve is finishing closing.
Patent GB-1507283-A (GB)
Title: Adapter for use on a typewriter
IPC: B41J35/28
Filed: 1976-02-17
Abstract: 1507283 Ribbon adaptor for a typewriter STANDARD MANIFOLD CO 17 Feb 1976 [18 Feb 1975] 06223/76 Heading B8M In order to permit use of replaceable inked ribbon 18 in a typewriter constructed to receive ribbon cartridges the ribbon supply spool 16 and its take-up spool 17 are mounted in an adaptor 35 to be subsequently used in the typewriter. The adaptor comprises a rigid baseplate 36 and a pivotable cover 51. The base plate has a hole 42, which receives a spindle 14 for the supply spool 16, and an elongate opening 43, 44, which receives a spindle 15 for the take-up spool 17. The cover 51 has a hole 59 and an opening which respectively communicate with the hole 42 and the opening 44 when the cover 51 is closed to lie parallel with the plate 36 wherein it is latched to the plate. The latching is performed by a detent of a latch 48 on the plate 36 engaging a notch 58 on the cover 51. In the closed position edges 55 and 56 of the cover 51 are vertically aligned with, respectively, edge 37 and portion defining latch 48 of the base plate. The adaptor 35 is mounted in mounting plate 10 of the typewriter in its open position. The cover is then closed whereby a manually rotatable knob 62 enters the cover opening to rotate the spool 17. Such rotation winds the leader tape on to the spool 17. A drive roller 22 has tines 23 which engage the ribbon 18 to translate it from the supply spool 16 to the take-up spool 17. A speed selector for the roller 22 comprises a cup 32 which is normally biased towards a cap 34 by a compression spring 30 whereby a gear 27 meshes with a gear 25 of a shaft 21 for driving the roller 22 at one speed, and which is pressed towards the spring 30 by the arm 70 of an actuator 66 whereby gear 28 meshes with a gear 24 of the shaft 21 for driving the roller at a different speed. The roller 22, shafts 20, 21 and the gears are disposed in the typewriter. The roller 22 moves in an arcuate path as the ribbon windings build up. The cover may be transparent. The adaptor 35 has ribbon guides 45, 46 of which guide 45 is arranged to produce greater frictional drag on the ribbon. Alternatively the adaptor has upturned marginal portions of the base plate which are spaced apart and so arranged that the ribbon passes around their outer surfaces which have friction reducing means.
Patent GB-254767-A (GB)
Title: Improvements in, and relating to, dumping carts, cars and wagons
IPC: B60P1/12
Filed: 1925-03-07
Abstract: 254,767. Gould, D. J., and Mercer Engineering Co., Ltd. March 7, 1925. Tipping-carts.-In road and railway vehicles the body comprises a number of sections, one or more of which may be tipped relatively to one or more complementary stationary sections. As shown, the tipping section c is pivoted about trunnions k, and, together with the stationary section d, is provided with an inclined floor so that when tipped the load in both the tipping and stationary sections is discharged along the inclined floors i, j. Any desired means for operating the tipping section may be employed, the means shown comprising a worm and worm wheel s, t, arm u, link v, bell-crank lever w, y, and link z.
Patent GB-290652-A (GB)
Title: Improvements in the method of telegraphing in morse code, and apparatus therefor
IPC: H04L15/04
Filed: 1928-02-29
Abstract: 290,652. Schoemaker, R. L. A. May 20, 1927, [Convention date]. Transmitters for handsignalling. - Morse code impulses are produced by moving contact 6 along a series 2 of stationary contacts or vice-versa. The movable contact is mounted in a member 7 and moved by a handle 1 from a zero position on the contact strip 2 to the centre of a short or long contact strip 4 of or an intermediate insulating material a and then back to zero according to the number of dots or dashes to be transmitted. The turning point according to the number of dots or dashes to be transmitted is indicated by a scale 11. The turning points may also be indicated by a spring catch 15 engaging depressions or notches 14 or by the resilientlv mounted contact engaging depressions. The scale and a pointer 12 may be made luminous for use in the dark. According to a modification the movable contact is in the form of a cylinder rolling over stationary plunger contacts (Figs. 6 to 15, not shown). Means for recording the transmitted message may be provided and also a second set of stationary contacts for operating a reserve transmitter.
Patent GB-214394-A (GB)
Title: Improvements in the manufacture of coloured tiles, slabs, bricks, or the like
IPC: C04B28/04
Filed: 1923-03-06
Abstract: 214,394. Hatton, M. March 6, 1923. Compositions containing cement, sand, colouring-matter, &c.-Tiles, bricks, slabs &c. are made by mixing colouring matter other than lead colours, in powdered form, with sand, adding granite, cement, and water, and moulding the mixture. Suitable proportions are 3 parts by volume of sand mixed with 1 part of colouring matter, 2 parts of ground granite, 1 part of Portland cement, and 1 part of water.
Patent GB-473539-A (GB)
Title: Improvements in and relating to viewing devices especially for aircraft
IPC: G02B23/08
Filed: 1936-04-16
Abstract: 473,539. Telescopes for use on aircraft &c. HOUGHTON-BUTCHER MANUFACTURING CO., Ltd., DRABBLE, J. E. L., and POOLE, V. J. A. April 16, 1936, No. 6457. [Class 97 (i)] A viewing device for use on aircraft to enable the pilot to observe the ground comprises a positive objective A of short focus and wide angle, a collecting lens C in or near the image plane of the objective A, an intermediate objective D, a second collecting lens E in or near the plane of the erected image formed by the objective D and an eyepiece lens F of such low magnification that the final image can be seen without any exact positioning of the eyes being required. The instrument also includes an even number of reflectors, each of which changes the direction of the optical axis. In the form shown in Fig. 2, three reflectors M2, M3, M4 are positioned within the instrument and a fourth reflector M1 is disposed externally to direct rays from the ground to the objective A, this reflector being pivoted at P to enable the ground to be traversed. A graticule may be provided in the plane of the image formed either by the lens A or by the lens D. The form shown in Fig. 7 comprises two reflectors M3, M4, the mounting for the optical elements comprising a fixed part H1 and a part H2 which can be rotated about a line in the surface of the reflector M4. This reflector is itself rotated about the same axis at half the speed of rotation of the tube H2. The form shown in Fig. 9 comprises two telescopes Ha, Hb for alternative use, one giving a large field with low magnification and the other a small field with high magnification. A single objective is mounted on a shaft 16 so that it can be moved into position for use with either of the telescopes, the other end of the shaft carrying a shutter 17 having an aperture which uncovers the appropriate eyepiece.
Patent GB-513631-A (GB)
Title: Process for removing suspended matter from oleaginous liquids
IPC: C10G32/02
Filed: 1938-03-01
Abstract: 513,631. Removing suspended solids from oleaginous liquids; purifying and dewaxing oils. DEHN, F. B. (Union Oil Co. of California). March 1, 1938, No. 6487. [Class 91] In a process for removing suspended materials from oleaginous liquids in an electric field, the mixture is applied in a thin layer to the surface of one electrode, submitting the layer to an electric field and separating the liquid from the matter deposited on the electrode. An intense electric field is generated by using as the other electrode pointed members adjacent the second electrode to generate a non-disruptive or corona discharge. The treater consists of a gas-tight enclosure 10 in which is mounted a rotatable cylindrical electrode 12, close to the surface of which are mounted a number of spouts or sprays 80, 81, through which the liquid mixture flows on to the electrode. Brushes may also be used. Adjacent the surface of the electrode 12 are mounted second electrodes 51 surrounded by a gaseous atmosphere, and which may be in the form of pointed rods, with or without co-axial rings, or a serrated metal sheet. There are also provided a launder 57 into which treated liquid flows, a scraper 60 which removes the deposited solid material from the rotating electrode, and falls into a collecter 64, spray nozzles 67 through which flows a liquid or gas for washing the deposited solids. In operation the liquid mixture, for example, an oil containing wax, is fed to the spouts 80, 81, and spreads in a thin layer over the rotating electrode 12. A voltage of 30,000 to 100,000 volts is applied to deposit the wax. The oil flows into the trough 57. Liquid or gaseous propane is sprayed on the wax, to remove occluded oil. The wax is again submitted to the electric field, and is then removed by the scraper 60. Direct current, free from ripple, is preferred, but pulsating D.C. or alternating current may be used. The process may be applied to removing wax from diluted and chilled lubricating oils, asphalt from oil or tar, resins from fuel oil, triglycerides and wax from fatty oils, and alkali or acid sludge from treated mineral oil.