baber/WOPTO huggingface dataset:
Patent GB-567293-A (GB)
Title: Improvements in or relating to self-sealing tanks for petrol or other liquids
IPC: B64D37/06
Filed: 1943-01-30
Abstract: A self-sealing flexible tank, particularly for petrol, oil or water, is built up from super-imposed layers of flexible material, at least one of which consists of felt, the tank being proofed internally.  In one form, a layer of felted wool cloth has applied to its inner surface a solution of synthetic resin known under the Registered Trade Mark "Formvai," and is built up to shape on a collapsable former; two similar layers are then applied thereto by said solution, butt joints being used in each layer, and the joints in adjacent layers being staggered.  Two coats of red dope are then given to the outer surface and a handle may be attached. In another form, the layers of felt are built up over a layer of linen impregnated with synthetic resin.  The resin solution may comprise 65 parts of Formvai in 35 parts of glyceryl diacetate with a trace of diphenyl amine; other solvents are trichlorethylene and a mixture of 70 parts of benzene with 30 parts of ethyl alcohol.
Patent GB-901924-A (GB)
Title: Improvements in or relating to the treatment of industrial gases
Inventor: MILNER GEOFFREY
IPC: B01J8/12
Filed: 1960-01-16
Abstract: 901,924. Gas purification. POWER-GAS CORPORATION Ltd. Jan. 16, 1960, No. 1650/60. Drawings to Specification. Class 55 (2). A process for the treatment of a hydrogencontaining industrial gas to effect hydrogenation of organic sulphur compounds and/or gum-forming constituents contained therein comprises continuously passing the gas at an elevated temperature serially through at least two zones of free-flowing solid catalyst material suitable for promoting the hydrogenation of the organic sulphur compounds and/or gum-forming constituents, intermittently discharging partially spent catalyst material from and feeding fresh or regenerated catalyst material to the last zone in the series, and intermittently discharging spent or partially spent catalyst material from and feeding to the or each other of the zones fresh or regenerated catalyst material or partially spent catalyst material from a succeeding one of the zones. Preferably the catalyst material is fed to each zone at one end thereof and is discharged therefrom at an opposite end thereof, the gas being passed through each of the zones either transversely or longitudinally between the ends thereof. The partially spent catalyst material discharged from the last zone in the series may be fed to the immediately preceding zone of catalyst material in the series. The gas to be treated may be passed serially through more than two zones of free-flowing solid catalyst material, the spent catalyst material being discharged from each zone except the first in the series and recharged to the zone immediately preceding that from which it is discharged. Adjacent zones may contain different catalyst material or the same catalyst material, but of a different particle size or character. Each zone is preferably sub-divided into several compartments and the catalyst material is supplied to and discharged from each compartment individually. The zones may be arranged either side-by-side or one within the other. Specification 901,923 is referred to.
Patent GB-1112618-A (GB)
Title: Adjustable, metered, directional flow control arrangement
IPC: F15B13/04
Filed: 1966-01-13
Abstract: 1,112,618. Hydraulic apparatus. FAWICK CORPORATION. Jan.13, 1966 [Jan. 29, 1965], No.1669/66. Heading F1P. In a hydraulic system in which a pump 12 supplies fluid to one or other end of an actuator 10, 11 through a changeover spool valve 14, the velocity of the actuator is controlled by the degree of displacement of the spool 22 and a compensating valve 36 subject to the pressure drop across the valve 14 maintains the flow of fluid to the actuator constant irrespective of fluctuations in the pump output or actuator load. The compensating valve 36 comprises a housing having a bore 45 in which is slidable a valve piston 49 controlling communication between an inlet port 42 connected to the pump output and an outlet by-pass port 43. The piston valve 49 is urged towards its closed position by a spring 55 and by the pressure of fluid admitted to a valve chamber 48 connected through a line 35 and a shuttle valve 34 to whichever of the inlet lines 30 or 31 is pressurized. If the load on the motor decreases or the pump output increases, the input flow to the valve 14 and hence the pressure drop thereacross increases to cause movement of the compensating valve to the right thereby increasing the amount of fluid by-passed through ports 42, 43.
Patent GB-875283-A (GB)
Title: Improvements in method of moulding positive drive belts
IPC: H01J25/42
Filed: 1960-01-18
Abstract: A synthetic rubber composition which when vulcanized gives a durometer A reading of 75-80 comprises:  <TABS:0875283/IV (a)/1> Specifications 618,172 and 794,860 are referred to.
Patent GB-342501-A (GB)
Title: Improvements relating to fire-extinguishers
IPC: A62C8/00
Filed: 1930-01-17
Abstract: 342,501. Fire-extinguishers. RYAN, E. C., 14, Harvard Mansions, Battersea, London. Jan. 17, 1930, No. 1785. Addition to 324,558, [Class 47 (ii), Fire-extinguishing &c.]. [Class 47 (ii).] The hand-sprinkler described in the parent Specification is modified in that the closing cap is a push fit on the nozzle 2, which has a plain outer end. The cap comprises a disc 3 with a depending flange 4, which is slotted as at 5 to increase its resiliency. This cap will be thrown off by the force of the contents when the extinguisher is operated.
Patent GB-733344-A (GB)
Title: Improvements in or relating to power transmission devices for bicycles
IPC: B62M1/24
Filed: 1952-01-22
Abstract: 733,344. Treadle mechanism for cycles. WILLIAMS, J. Jan. 19, 1953 [Jan. 22, 1952] No. 1789/52. Class 136(2). A treadle operated power transmission device for a bicycle comprises a supporting frame 10, a chain wheel 19 rotatably mounted thereon forward of the rear wheel, a pair of levers 13 each pivoted intermediate its length at 12 on said frame and each having one end extending forwardly and arranged to be operated as a treadle, and a pair of connecting rods 16 each pivoted at 15 to one of the levers 13 and at 17 to a member 18 operatively connected with the chainwheel shaft. Owing to the mass of the lever 13 and connecting rods 16 the pedals 14 may not rise from the lowest positions so easily as the normal pedals. A slipping clutch is provided to overcome the inertia of the treadles. For this purpose the rear hub 21, Fig. 2, is provided with a friction ring 22 suitably mounted on bolts 23 and urged against the rear chain sprocket 20 by springs 24. Declutching means operable by a cable may be provided. As shown in Fig. 1, the supporting frame 10 is constituted by the bicycle frame but the frame 10 may be detachably secured to an ordinary bicycle. The supporting frame 10 may also be incorporated in a tandem bicycle as shown in Fig. 3, two levers 27, 28 being pivoted about two lateral journals 26 projecting from a mounting 25. Parts 27a, 28a respectively of the levers are connected by rods 31, 32 to a pivot 36 on a chain wheel 33 mounted on a journal 34. The same construction of levers and connecting rods is provided on the other side of the machine but in opposite phase relation. As shown in Fig. 4, a standard tandem frame 10 is provided with journals 40 for levers 41, 42 which are connected by rods 45, 46 to a chain wheel 47.
Patent GB-610552-A (GB)
Title: Duplicating apparatus for use in connection with typewriters, calculating machines or other similar writing apparatus
IPC: B41J17/00
Filed: 1946-01-18
Abstract: 610,552. Typewriters &c. DANSK SKRIVEMASKINEFABRIK VED FOSS, RINDOM & LAURITZEN. Jan. 18, 1946, No. 1837. Convention date, May 20, 1944. [Class 100(iv)] Carbon-sheet arrangements.-A manifold attachment for typewriting and like machines for feeding carbon sheets and paper webs in interleaved relationship, the carbon sheet being attached to a mounting strip extending between the paper sheets, comprises a spring-controlled means to which the strip is attached by tapes or the like, including co-operating friction rollers between which the paper sheets pass, one of said rollers winding or unwinding a spring so that during forward movement of the sheets frictional drag is transferred to the roller by the whole width of the roller and paper. Sheets 6, 7, 8 forming part of continuous webs, interleaved with carbon sheets 4 attached by mounting strips 5 to a carrier 3, pass between a friction roller 24 and a clamping roller 27 releasable by a lever 31. The roller 24 is spring-loaded, being connected through a spiral spring 26 to a shaft 25 fixed to a stanchion 30 supporting also a guide bar 23. The carrier 3 is provided with tapes 9 wound round the roller 24. The roller 24 is caused to rotate to wind up the spring on forward movement of the sheets by rotation of the platen by the friction set up by the sheet 6 and the roller 27. On rotating the platen backwards until the carbon sheets are released and operating the lever 31 to separate the rollers, the carbon sheets are withdrawn by means of the spring 26. The roller 25 may be located between the paper sheets so that only one sheet is effective to turn the roller. The Specification as open to inspection under Sect. 91 comprises also a form wherein the paper sheets pass round a roller 10, Fig. 2 (Cancelled), being attached thereto by pins and perforations, and the tapes pass round rolls 14, and carry weights at their free ends. The roller 10 is free on the shaft 13. One roll 14 is fixed to the shaft 13, the other being rotatable therewith but slidable thereon. The shaft 13 is split and its halves urged apart by a spring 19, but clutched for rotation together. The roller 10 is clutched at 20 to the slidable roll. On release of the carbons a lever 22 is operated to press together the halves of the shaft and thereby release the clutch 20, when the weight acts to retract the carbons. This subject-matter does not appear in the Specification as accepted.
Patent GB-1061671-A (GB)
Title: Inhibited anti freeze composition
Inventor: ORDELT HERMANN EMIL FERDINAND
IPC: C09K5/20
Filed: 1965-01-15
Abstract: An inhibited antifreeze suitable for use in water-based radiator liquids consists of (a) a water-miscible alcohol, (b) an alkali metal silicate, (c) mercaptothiazole and/or mercaptobenzothiazole, (d) an alkali metal salt of tetraboric acid, (e) an alkaline-reacting compound of an alkali metal other than a borate or silicate and (f) at least sufficient water to maintain the other components in solution, the molecular ratio of component (d) to component (e) being 1:2-4.  Component (a) may be ethylene glycol, (b) may be sodium metasilicate, (d) may be borax and (e) may be sodium or potassium hydroxide or carbonate. Benzamide or phthalimide may also be included.
Patent GB-657162-A (GB)
Title: Dancing doll
IPC: A63H13/12
Filed: 1949-01-24
Abstract: 657,162. Mechanical dolls. COHN, I. Jan. 24, 1949, No. 1894. [Class 132 (iii)] A dancing doll which rocks and rotates due to the eccentric action of a rotatably driven hat or the like includes a rounded base member 18 with upturned edges 18x and fulcrum members 18xx (not shown). A clockwork motor is mounted inside the hollow body 1 and through a vertical shaft 13 rotates a wide brimmed hat 16 having a single bangle 17 on the brim, thus producing a rocking and bodily rotation of the doll. The main figure may alternatively comprise animal, bird or normally inanimate objects, marginal eccentricity of the rotating member being obtained, e.g. by a thickened wall at one area or ornamentation.
Patent GB-462768-A (GB)
Title: Improvements relating to gas cookers
IPC: F24C15/10
Filed: 1936-01-21
Abstract: 462,768. Gas cooking-stove hot-plates. HUNT & SON, Ltd., R. J., and HARVEY, F. Jan. 21, 1936, No. 1904. [Class 126] The upper surfaces d of some or all of the side members of the hot-plate frame of a gas cooker are shaped with their outer edges higher than their inner edges to form a guard which tends to prevent vessels from slipping off the grid f carried by the frame and causes liquid spilt on the frame to drain over its inner edges. The upper surfaces d may be curved as shown, plane and inclined, or angular. The front member e of the frame may have a flat upper surface. A channel l on the rear frame member supports the splash plate k.
Patent GB-939444-A (GB)
Title: A transformer winding arrangement
IPC: H01F27/28
Filed: 1962-01-18
Abstract: 939,444. Electric transformers. SIEMENSSCHUCKERTWERKE A.G. Jan. 18, 1962 [Jan. 18, 1961], No. 1954/62. Class 38 (2). In a transformer arrangement consisting of two parts, one part (not shown) has primary and secondary windings with mutually variable transformation ratio, the other part has primary and secondary windings with a fixed transformation ratio which windings are arranged concentrically and coaxially, one of these windings lying between the two portions U 1 , U 2  into which the other winding is divided, and that winding which operates at the higher voltage being divided into a number of serially connected coils 1, 2, 3, 4, 5 with its lowest voltage coil 5 being adjacent the lower voltage coil U 1  as shown or (U 2 ). The layer or disc coils of that winding which operates at the higher voltage may alternatively be connected in a series parallel arrangement, Fig. 2 (not shown), and the high voltage winding may be in two parts with the low voltage winding between, Figs. 4, 5 (not shown).
Patent GB-293060-A (GB)
Title: Improvements in and relating to spinning boxes used in the manufacture of artificial silk and the like material
IPC: D01D7/02
Filed: 1927-01-22
Abstract: 293,060. British Thomson-Houston Co., Ltd., Young, A. P., Warren, H. W. H., and Chapman, R. J. Jan. 22, 1927. Drawings to Specification. Spindle apparatus.-Spinning-boxes used in the manufacture of artificial silk and like material are made of woven fabric impregnated with insulating material such as a synthetic resin, the fabric, either before or after treatment with a synthetic resin such as that produced from cresol and formaldehyde, being cut into a number of shapes to form the bottom and sides which are stacked in a simple cylindrical assembly former until the desired number of luminations are built up and are then transferred to a mould and subjected to heat and pressure to cure the binder.
Patent GB-1494128-A (GB)
Title: Transmission system
IPC: B60K6/10
Filed: 1975-01-17
Abstract: 1494128 Variable speed gear I PAPADIMITRIOU 17 Jan 1975 [6 April 1974] 2124/75 Heading F2D [Also in Division B7] A two-way drive system, for a vehicle driven by an input flywheel 21, includes a variableratio gear 20 having a torque-splitting planet train with planets 27, carried by an output shaft 2, meshing an input sun 6 and a ring gear 8 driven by the input shaft 1 through an expanding wheel belt gear 13, 14, countershaft 11, overload slip coupling 11a, and freely mounted wheel 9 meshing external teeth on the ring gear 8, the gear housing 30 being mounted to turn about the axis of the shafts 1, 2 in a yielding elastic block 34, under torque reaction which is transmitted through double-acting master and slave cylinders 5, 4 to a manual control lever 3 of the expanding wheel gear, whereby the operator receives the feel of the torque reaction which tends to bring the control lever towards zero drive position under excessive accelerating or decelerating forward drive load. During forward drive the flywheel 21 provides energy for acceleration, and on overrunbraking for charging a battery 24 supplying current to a propulsion motor 22 on the input shaft 1, excess energy being dissipated in a resistor 28. For sustained high-speed running an I.C. engine 29, preferably rotary, can be electromagnetically clutched at 30 to the input shaft 1. The battery 24 can also be charged from a mains supply 26.
Patent GB-469404-A (GB)
Title: Improvements in or relating to electron discharge apparatus
IPC: H01J43/22
Filed: 1936-01-23
Abstract: 469,404. Cathode-ray tubes. WILLIAMS, W. E. Jan. 23, 1936, No. 2207. [Class 39 (i)] In discharge tubes with an electron beam the electron density at any point of which is representative of the brightness of a corresponding optical image, the beam undergoes impacts with a series of wire grids emitting secondary electrons and so oriented that the lines in the pattern introduced into the electron image by the wires of one grid lie in directions inclined, for example, at 45‹ to the wires of the next grid. Successive grids may be closely adjacent or spaced apart with electron lenses between them. An optical image of an object 21 is thrown on a photo-electric cathode 23 in the evacuated vessel 24 containing secondary emitting grids 26, 27, 29, 30, 32. Electrostatic lenses 25, 28, 31 are provided between each pair of grids or as shown between alternate pairs. More than two closely adjacent grids may be used and grids may also be mounted adjacent to the cathode 23. When the final electron image is magnetically deflected in space to produce scanning and television signals, the final grid is of magnetic material to screen the electrons striking it from the magnetic fields. The other grids are of silver or silver coated with alkaline metal such as caesium or potassium.
Patent GB-263642-A (GB)
Title: Process for the extraction of precious metals from the slimes of copper refineries
IPC: C22B11/00
Filed: 1926-01-26
Abstract: 263,642. Baraboshkin, N., and Trust Uralkupfer. Jan. 26, 1926. Treating slimes to remove volatile and undesired constituents.-A method for the treatment .of slime from the electrolytic refining of copper for the recovery of gold and silver consists in the separation of copper by any suitable method, subsequent roasting of the product for the removal of volatile compounds of selenium, tellurium and other elements at a temperature rising from 500‹ C. to 900‹ C., and finally fusion of the roasted product with flux to form a fusible slag with the other impurities of the slime. The raw slime, after separation of the anode deposit by screening or sliming, is allowed to settle in a lead-lined tank. Commercial sulphuric acid is then added in proportion equivalent to the copper content. The mixed mass is heated and stirred in iron or copper pans heated by hot gases or by superheated steam for several hours at a temperature not above 250‹ C. All the copper is converted into soluble form, while the silver remains insoluble, as the formation of soluble silver salts begins above 300‹ C. The mass is charged into a tank containing hot water and stirred to dissolve the copper. The residue is filtered and washed with hot water, the solution and washing water being used until saturated with copper sulphate which is crystallized on cooling. The filtered slime is transferred to a roasting furnace and heated to 500‹ C.-600‹C. in an air current for about four hours. Volatile impurities such as selenium and tellurium are driven off and are condensed as oxides. The roasted product is mixed with soda ash and pyrolusite or other flux to produce a fusible slag and smelted in a reverberatory or electric furnace. The flux may be added to the washed slime before roasting. The slag is removed and the remaining metal refined by blowing or by using oxidizing fluxes such as nitre.
Patent GB-1375217-A (GB)
IPC: B66C23/10
Filed: 1972-01-18
Abstract: 1375217 Inclined-jib cranes MAGYAR HAJO ES DARUGYAR 18 Jan 1972 [19 Jan 1971] 2381/72 Heading B8B A jib crane, particularly for ship or dockside use, comprises an inclined jib along which can run a trolley 4 controlled by a trolley winch 23 and a cable 3. A load cable 2 runs from a load winch 1 over guide pulleys on the trolley 4, at the jib head 5 and at the load block 17, there being m falls of the load cable 2 at the block 17 and n falls at the jib head 5. The angle of inclination α of the jib is calculated from the formula α=arc sin(n - 1)/m to ensure horizontal load travel when the trolley 4 is moved with the load winch 1 inactive.
Patent GB-571418-A (GB)
Title: Process for the manufacture of tetrahydrofuran from tetrahydrofurfuryl alcohol
IPC: C07D307/28
Filed: 1944-02-09
Abstract: Tetrahydrofuran is obtained by contacting tetrahydrofurfuryl alcohol in the vapour phase with a catalyst containing between 50 and 80 per cent of copper and between 20 and 50 per cent of nickel in the presence of hydrogen in amount at least equal to, but preferably more than 50 per cent of the tetrahydro-furfuryl alcohol reckoned on a molecular basis.  In an example, tetrahydrofurfuryl alcohol and hydrogen are passed at controlled rates into a "Pyrex" (Registered Trade Mark) chamber maintained at 275 DEG  C. containing a catalyst prepared from an alloy wire containing 54 per cent of copper and 46 per cent of nickel by cutting it into small pieces, heating these in the chamber to 550 DEG  C., oxidizing by a stream of air at that temperature, activating by reduction with hydrogen at 300 DEG  C., and allowing to cool to 275 DEG  C.  Specification 550,105 is referred to.
Patent GB-261947-A (GB)
Title: Improvements in internal combustion engines
IPC: F01M13/02
Filed: 1926-01-28
Abstract: 261,947. Mayo, P. L., and Mayo, A. E. Jan. 28, 1926. Crank chambers. -In engines wherein the carburettor receives its air supply either wholly or in part from the crank case, the carburettor 2 is connected to the crank case 3 through flexible or flexibly jointed tubing. The tubing may be in two parts 4, 4<a> connected by a flexible sleeve 7, e.g. of indiarubber, or the whole tube may be a continuous length of flexible metal tubing, which facilitates connection and disconnection at the opening 6. Fresh air may be admitted through openings 5 controlled by a sliding clip 10. The tubing is secured by clips 8 to the cylinder head 9. The crank case may be provided with a non-return valve. Reference has been directed by the Comptroller to Specifications 16511/09, [Class 7 (ii), Internalcombustion engines, Carburetting apparatus &c. for], 180,844, and 216,176.
Patent GB-393020-A (GB)
Title: Improvements in apparatus for use in the furnace treatment and sawing of steel or metal billets
IPC: B23D47/04
Filed: 1932-01-27
Abstract: 393,020. Circular - saw machines. WELLMAN SEAVER ROLLING MILL CO., Ltd. and SMITH, S., Victoria Station House, Victoria Street, London. Jan. 27, 1932, No. 2481. [Class 145 (ii).] In a continuous billet heating-furnace in which, during the heat treatment, the billets a are discharged, cut into shorter lengths a<1> by a circular saw f<1>, and then returned for completion of the heating, the uncut billets a are discharged and the shorter lengths a<1> returned through the same opening b<3>. The saw f<1> is either so mounted that it may be traversed to the desired cutting positions or a plurality of blades may be provided. The uncut billets a are discharged and the shorter lengths a<1> returned by cable-operated rams d, h respectively. Specification 359,120 is referred to.