baber/WOPTO huggingface dataset:
Patent GB-254048-A (GB)
Title: Improvements in or relating to sprocket wheels or pulleys
IPC: F16H7/12
Filed: 1925-04-28
Abstract: 254,048. Soc. Anon. Etablissements Brampton, and Edwards, A. C. April 28,1925. T e n s i o n arrangements. - A sprocket wheel or pulley for taking up the slack in a chain or belt rotates freely on a hollow hub 1 which is mounted eccentrically on a stud or shaft 3 and contains a spring 6. The inner end of the spring 6 engages with a tongue 8 formed on a sleeve 4 which can be rotated to wind up the spring 6 and then held in position by a pin 11 passing through the shaft 3. Should the spring break the hub 1 is held in place by a pawl engaging teeth on the sleeve 4 which are slightly undercut to allow a small backward movement after engagement.
Patent GB-1026619-A (GB)
Title: Apparatus for cutting the neck of a container
IPC: B29C49/74
Filed: 1964-03-16
Abstract: 1,026,619. Machine for cutting the necks of plastics containers. A. H. DI SETTEMBRINI. March 16, 1964 [March 16, 1963], No. 11091/64. Heading B5A. A machine for cutting the necks of one or more containers, in particular plastics containers, comprises means for raising each container neck into the space between a plurality of cutting discs of a cutting head, each disc being rotatable about its axis and provided with a peripheral cutting edge. Spindles 13, 14, mounted in bushes 11, 12 of a plate 10, carry container supports 18 and are vertically reciprocated by the co-operation of rollers 16 with a cam 17 when plate 10 is rotated by main shaft 6. Spindle 13 is shown raised, and in this position the container is centred by a rotatable guide 38 and is rotated about its own axis as a bevelled disc 19 fixed to the spindle is pressed against a fixed semicircular cam 21. Also in this position the container neck is introduced into the path of a system of cutterdiscs 40-42, Fig. 2 (not shown), each of which has positioned therebeneath a non-cutting disc 46 or 47, Fig. 3 (not shown), which discs hold the neck correctly positioned for the cutting operation. Each group of cutter discs is moved into the operative position at the appropriate time by a cam 36, rotated by shaft 6, against the action of a spring 37. After cutting, the spindles are lowered, and as shown with respect to spindle 14, the container is removed by an ejector disc 34 which is raised when a roller 32 engages a cam 33. In a second embodiment (not shown) the cutter-discs are rotated instead of the containers.
Patent GB-216302-A (GB)
Title: Improvements in shooting seats
IPC: A45B5/00
Filed: 1923-04-24
Abstract: 216,302. Brigg, W. A., Brigg, B. W., Brigg, G. L., (trading as Brigg & Sons), and Hudson, C. W. April 24, 1923. Folding seats.-In a walking- stick seat of the kind having a flexible seat proper 5 supported on bars 6, 7, the hinged members 2, 3 are held together in their closed portion by a spring clip 8 adapted to engage the two bars 6, 7. The clip 8 may be sufficiently flexible to become automatically unfastened when the two members 2, 3 are opened out.
Patent GB-128759-A (GB)
Title: Improvements in Differential Gearing.
Filed: 1918-07-06
Abstract: 128,759. Ormsby, D. D., and Brown- Lipe-Chapin Go. July 6, 1918. Differential gearing.-To prevent the two driving-wheels of a motor-vehicle from running at different speeds if the road resistance differs, friction is introduced into the differential gearing causing the two axles a, a' to be locked to the driving-ring 4. To effect this result, the bevel-wheel 8 driving the axle a<1> is mounted on an eccentric collar 13 on the axle and is jammed against a friction ring 16 mounted in the ring 4, if the tractional resistance of the wheels is unequal. The dif. ferential gearing is thus locked, but is free to operate when the vehicle turns.
Patent GB-654696-A (GB)
Title: Improvements in or relating to the purification of uranium and thorium compounds
Inventor: ARDEN THOMAS VICTOR
IPC: C22B60/02
Filed: 1948-04-22
Abstract: An impure uranium or thorium compound is extracted with an organic solvent therefor in the presence of an adsorbent substance which has greater retentivity for impurities than for the uranium or thorium compound.  Suitable solvents are diethyl ether, methyl and butyl acetates, methyl isobutyl ketone and nitromethane, and as adsorbents, cellulose pulp, wood pulp, cotton fibres, cotton wool, cellulose acetate, methyl cellulose, activated alumina, calcined ball clay, alginic acid and ion exchange resins, particularly sulphonated cross-linked polystyrene are specified. Cellulose is preferably first activated by treatment with nitric acid or hypobromite solution, or by mercerization with caustic soda.  The solvent is preferably dried over calcium chloride, and acidified with nitric acid.  In carrying out the process, the solution of the compound in the organic solvent may be brought into contact with the adsorbent, or an aqueous solution, semi-solid, slurry or solid may be contacted with the adsorbent moistened with the solvent, and the compound then extracted by the solvent.  Variants of these methods are described.  The glass, silica, or ceramic tube in which the adsorbent may be packed, may be coated with dichloro-dimethyl silane.  Examples are given relating to the purification of (i) a uranyl nitrate solution obtained by dissolving pitchblende in nitric acid, (ii) a solution obtained by dissolving a low grade siliceous uranium ore in dilute sulphuric acid, precipitating with caustic soda and magnesia, and dissolving the precipitate in nitric acid, (iii) a solution obtained by decomposing monazite with aqueous hydrofluoric acid, fusing the insoluble fluorides with potassium hydroxide, leaching with water, dissolving the insoluble hydroxides in nitric acid, and reducing any ceric salt by means of hydrogen peroxide, (iv) a solution obtained by treating uranothorianite with nitric acid, fusing the residue with caustic soda, leaching with water, acidifying with nitric acid, adding to the main solution, evaporating the latter to dryness, and treating with water, concentrated nitric acid and hydrogen peroxide. Uranium is extracted from the adsorbent by passage of diethyl ether containing 3 per cent nitric acid, and thereafter the thorium by the use of diethyl ether containing 12.5 per cent nitric acid. Specification 654,695 is referred to.
Patent GB-436541-A (GB)
Title: Improvements in and relating to kinematographic apparatus
IPC: G03B21/02
Filed: 1934-04-13
Abstract: 436,541. Kinematograph apparatus. STEWARD, H., 13, Surbiton Road, and NORDEN, H. M., 162, High Street, both in Southend-on-Sea. April 13, 1934, No. 11166. [Class 97 (i)] Projection means, which may be associated with a camera or removed therefrom, consists of a unit comprising projection and illuminating systems and a shutter which is automatically coupled to a spindle in the camera when the unit is in position thereon; the unit may carry a pay-out spool, or both payout and take-up spools. As shown, the unit comprises a saddle-piece 16 having pins 17 entering sockets 11 in the camera to locate the unit thereon. The saddle-piece carries a casing 18 enclosing a cylindrical shutter carried by a spindle 20 having a forked-end and projecting through a hole 9 in the camera to engage a cross bar on the end of a spindle extending into a socket 15 from the mechanism of the camera. The casing 18 has a cylindrical extension housing a projection lens in an adjustable sleeve 26, and a hinged cylindrical extension 31 housing a condenser and a slidable lamp-fitting 32. The film passes from a spool 41 carried by the casing 18 through a channel in front of the hinged extension 31, through a slot 10 in the camera, and through the film guide 6 in the camera to the camera take-up spool. A modification is described in which the projection unit carries a take-up spool driven through a belt by friction gearing from the spindle 20, and the film passes to the spool through a slot in the camera. A cover plate, preventing the admission of light through the openings in the camera, may be secured in place, by keyhole slots engaging shouldered pins 40, when the unit is removed.
Patent GB-818432-A (GB)
Title: Improvements in or relating to machines for producing pile fabrics
IPC: D04H11/04
Filed: 1957-04-06
Abstract: 818,432. Making cemented pile fabrics. PAERSE-LAING Ltd., and PAERSE, C. March 17, 1958 [April 6, 1957], No. 11294/57. Class 142(4) A pile fabric made on a machine such as is described in Specifications 704,335 and 658,791 has the pile cut, while the pile forming material is held between the looping blades 10, by a cutter introduced between successive blades. The cutting device comprises end blocks 27 (Fig. 2) connected by rods 34 and moved downwards by cams 30 and tappets 29, the blocks sliding on rods 26 and being returned by springs 28. A carriage is reciprocated on the rods 34 by a cam 37 engaging a member 36 on the carriage and springs 41 return the carriage. Cutters 43, mounted on the carriage, are driven by a chain 45 from a motor 48. The cams 30, 37 are driven from ;a shaft 31. The blocks 27 also carry clamping bars 50 and separators 55 (Fig. 5) which retain the loops and deflect the blades before insertion of the cutter. The blades may be made of rubber or a plastic to facilitate their deflection. The backing may be set by hot air. Cutters having straight edges may be used. A pattern can be produced by having cut, and uncut pile. A fabric bucking may, or may not, be provided.
Patent GB-148009-A (GB)
Title: Improvements in and relating to electrical water heating elements
IPC: H05B3/58
Filed: 1919-05-07
Abstract: 148,009. Barr, J. F. May 7, 1919. Resistances. - A heating- element consists of a ribbon a wound in the form of a double coarse thread around a serrated sheet f of mica, both ends of the ribbon terminating at one end of the sheet, and being connected by rivets d with metal connecting strips e; the element is insulated on either side and encased in a flattened metal tube. The element may be used in waterheaters of the type described in Specification 107,038, [Class 39 (iii), Heating by electricity].
Patent GB-801539-A (GB)
Title: Improvements in mineral-mining machines
Inventor: GARDNER HAROLD HUME
IPC: E21C27/22
Filed: 1957-04-08
Abstract: 801,539. Mineral-mining machines. CANADIAN INGERSSOLL-RAND CO., Ltd. April 8, 1957, No. 11405/57. Class 68(1) A cutter tube 72 is rotatably mounted in a frame 11 that is pivotally mounted about an axis 28 transverse of and at the rear of a self propelled, steerable chassis 15 so that the tube may be swung in a vertical plane by hydraulic jacks 16 acting between the chassis and the frame. The tube is rotated through a chain drive from a motor 14 on the chassis. The mineral freed by the detachable cutter head 31 of the tube 72 is carried back through the tube by a helical scroll secured to the inside of the tube, the scroll increasing in pitch and in radial extent as it proceeds rearwards along the tube.
Patent GB-1213131-A (GB)
Title: Improvements in or relating to electric counters
Inventor: SMITH MICHAEL CHARLES
IPC: H03K23/00
Filed: 1967-03-10
Abstract: 1,213,131. Electronic counters. GENERAL ELECTRIC AND ENGLISH ELECTRIC COMPANIES Ltd. 11 March, 1968 [10 March, 1967], No. 11413/67. Heading G4A. Each stage of a counter, comprises a single transistor, bias potentials from each stage being applied to all other stages to maintain only one stake in 1 condition, the rest in 0 condition, the output of each stage being coupled to the input of the following stage by a transformer, and the 1 condition being stepped from one stage to the next by application of a pulse simultaneously to all the transformers. In the 3-stage ring counter shown, if transistor 4 of stage 1 is conducting the potential at its collector applied to diodes 10 through Zener diodes 15 maintains the bases of the other stages negative. The base voltage of the non-conducting stages is stabilized by connections through diodes 9 to common line 8 which is connected by Zener diode 21 to all the collectors and by resistor 22 to - ve supply. A - ve going input pulse at 20 drops the potential on common line 5 so as to pulse the primary winding of the transformer 7 associated with the operative stage 1. The resulting pulse in the secondary winding sets the transistor 4 in the succeeding stage 2 into conduction. The collector potential of this stage falls to earth so cutting off stage 1. The counter may have different numbers of stages.
Patent GB-434615-A (GB)
Title: Improvements in or relating to circuits for feeding electric discharge tubes
IPC: H05B41/04
Filed: 1934-04-16
Abstract: 434,615. Discharge apparatus. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, HARRIS, N. L., and PRITCHARD, W. H., c /o General Electric Co., Wembley, Middlesex. April 16, 1934, No. 11416. [Class 39 (i)] An electric discharge tube 1 having a negative characteristic is connected in series with a stabilizing choke 6 to an A.C. supply, and has a thermionic electrode heated independently of the discharge by connecting its heating element 3 in series with a condenser 7 across the supply, at least during the starting period. The condenser 7 is used normally for power-factor correction and may be permanently connected to the heater 3, or a switch 8 may be employed to cut out the heater and to connect the condenser directly across the supply. The other electrode 2 may be heated by the discharge, or through a transformer, or through a circuit including a choke, condenser or resistance connected across the supply. In an alternative construction the stabilizing choke 6 is replaced by a condenser and the condenser 7 by a choke. Auxiliary electrodes may be provided for starting. Specification 434,614 is referred to in the Provisional Specification.
Patent GB-1192719-A (GB)
Title: Improvements in and relating to Athletics Shoes
IPC: A43B5/06
Filed: 1969-03-04
Abstract: 1,192,719. Boots &c. PUMA-SPORTSCHUHFABRIKEN RUDOLF DASSLER K.G. 4 March, 1969 [27 March, 1968], No. 11496/69. Heading A3B. A sports shoe, e.g. a track shoe, has a longitudinal division along the instep region of the upper a and has a coarse facing e on one side of the division and a set of straps d attached to the other side of the division, the undersides of the straps d being provided with a multitude of small barbs to form a self-adhering fastening on being engaged with the facing e. The straps d and facing e may be made from "Velcro" (Registered Trade Mark) tapes. The upper a may consist of nylon fabric, parachute silk or similar material and may be provided with reinforcements b, f, g and h of tear-resistant material e.g. kangaroo leather.
Patent GB-115102-A (GB)
IPC: B23K35/362
Abstract: 115,102. Temple, W. May 2, 1917. Fluxes.-A flux for iron or steel consists of 24 to 32 parts of powdered borax or lime, and 2 to 3 parts of tincture of iron or 4 to 6 parts of iron filings or turnings, with or without 40 to 48 parts of sand.
Patent GB-1130148-A (GB)
Title: Catch with automatic locking action for sliding panels
IPC: E05F11/00
Filed: 1966-03-16
Abstract: 1,130,148. Latches. A. SCHAUDEL. 16 March, 1966 [31 March, 1965], No. 11538/66. Heading E2A. A fastening arrangement for sliding members comprises a rotatable latch member 5 adapted in one angular position to be incapable of passing through a slot 10 and in a second angular position to be capable of passing through the slot, biassing means urging the latch member to the first position and means to rotate the latch member from the first to the second position. As shown the latch member 5 is pivoted on a spindle 4 attached to a frame member 2 and is biassed in use by a torsion spring 8 to a non vertical position in which its ends 9, 9a engage behind the edges of the slot 10 in the edge of a panel. The latch member is operated to its release position by a push-button member 18, and the mechanism includes a stop member 12 which is biassed outwardly towards the edge of the panel by a spring 13 and maintains the latch member 5 in the second position until the panel is moved to its closed position. A similar mechanism is applied to the opposite edge of the panel.
Patent GB-585413-A (GB)
Title: Improved method for the resolution of penicillamine
Filed: 1944-06-19
Abstract: dl-Penicillamine is resolved into the d- and l-optical isomers by combining its racimic N-formyl - isopropylidene derivative with an optically-active alkaloid, fractionally crystallising the resulting salts from aqueous or alcoholic solution and hydrolysing at least one such isomer, e.g. by warming with aqueous hydrochloric acid.  In examples: (1) dl-N-formylisopropylidenepenicillamine is dissolved with brucine in hot water and crystallised, the filtrate being further concentrated, and the combined solids, on treatment in aqueous suspension with concentrated hydrochloric acid, dissolved to yield d-N-formyl-isopropylidenepenicillamine, the corresponding l-compound being isolated from the aqueous filtrate from the resolution on treatment with concentrated hydrochloric acid; d - penicillamine hydrochloride is obtained from the d-N-formyl compound by heating the latter on a steam-bath with 2N-hydrochloric acid in the presence of carbon dioxide, and the free amine is isolated by heating the foregoing hydrochloride with dry acetone for 1 hour and concentrating in vacuo to obtain d-isopropylidenepenicillamine hydrochloride, which is hydrolysed to the corresponding free base by treating with aqueous pyridine, from which d-penicillamine is isolated; (2) dl-N-formylisopropylidenepenicillamine and d-q -ephidrine are dissolved together in water and concentrated to obtain the corresponding l- and d-isomers from the solid and filtrate respectively, d-penicillamine hydrochloride being obtained as in (1); (3) dl-N-formylisopropylidenepenicillamine and l-ephidrine are dissolved together in alcohol, the crude l-isomer being obtained on acidifying the first, and the crude d-isomer on acidifying the second crop of crystals, from which latter d-penicillamine hydrochloride is isolated as in (1); (4) dl-N-formylisopropylidenepenicillamine and l-ephedrine are dissolved together in water to furnish the l-ephedrine salt of l-N-formylisopropylidenepenicillamine and the corresponding l-base is obtained on acidifying, the crude d-isomer being isolated from the filtrate, from which d-penicillamine hydrochloride is obtained as in (1).  Specification 585,439 is referred to.
Patent GB-267744-A (GB)
Title: Improvements in automatic electric temperature-responsive alarms
IPC: G01K5/16
Filed: 1926-05-03
Abstract: 267,744. Meyer, E. W. May 3, 1926. Thermomethers. - A contact thermometer b for temperature responsive alarms is provided with a contact in the bulb and a contact c in the stem adjustably carried by a screw m passing through a metal box d, fitted tightly on the upper end of the stem. The box d has a branch with an outlet g, closable by a screw h, by which the thermometer tube may be evacuated.
Patent GB-455351-A (GB)
Title: Improvements in or relating to cathodes for electron discharge devices
IPC: H01J1/16
Filed: 1935-04-16
Abstract: 455,351. Thermionic cathodes. FERRANTI, Ltd., and TAYLOR, M. K., Hollinwood, Lancashire. April 16, 1935, No. 11707. [Class 39 (i)] An equipotential cathode for an electron discharge comprises a hairpin type filament of wire or ribbon, the two limbs a, b of which are welded together at c close to the bend so as to provide a short circuit for current flowing through the cathode, the short-circuited portion or a part attached thereto presenting a flat emissive surface e lying normal to the direction of the electron beam. The form shown is of nickel ribbon and the emitting part flattened so as to present a plane portion perpendicular to the axis of the hairpin, which portion may be cut into disc form. In a modification, a metal disc or plate may be spot welded to the top of the short-circuited portion, to form the emitting surface. Specification 393,651 is referred to. The Provisional Specification describes a modification in which the short circuited portion is a circular loop of ribbon upon which the emissive material is deposited.
Patent GB-269735-A (GB)
Title: Improvements in or relating to fuel lines for internal combustion engines
IPC: F02M55/00
Filed: 1925-11-09
Abstract: 269,735. Braren, L. K. Nov. 9, 1925. Pipes.-The pipes leading to the fuel pump of an internalcombustion engine from the suction reservoir and from the pump to the injection valve comprise concentric tubes, leakage and excess -fuel being returned to the pump or reservoir through the annular space between them. The tubes are connected to the pump &c. by a nut 11, having an inward flange engaging a cap 13 secured to the tube 9. the cap holding the nipple 10 secured to the tube 8, in a recess in the stud 12. The tube 9 communicates through holes 14 in the cap, space 15 and holes 17 in the stud with the passage 19. Specification 268,846 is referred to.
Patent GB-1497567-A (GB)
Title: Fluid valve devices
IPC: F15B11/10
Filed: 1975-03-20
Abstract: 1497567 Fluid-pressure servomotor systems TEDECO A G 20 March 1975 [22 March 1974] 11759/75 Heading G3P A valve device 12 for proportionally positioning an hydraulic directional control spool valve 14 comprises a flow regulating valve 24 between a pressure inlet 17 and an outlet 19 connected to an actuating piston 35 of the spool valve 14 and a servovalve 33, 32 between the outlet 19 and a drain outlet 18. The servovalve includes a valvemember 33 positioned relative a seat 32 in accordance with the current in an actuating electromagnet 30 so that the valve 14 assumes a position in accordance with the'current and moves to that position at a constant speed determined by the valve 24. Two similar valve devices 12 are shown connected to the opposite sides of the piston 35 which is biased towards the centre by spring 36. A priority flow valve (40) may be connected to the inlet 17.
Patent GB-475737-A (GB)
Title: Improvements in or relating to coating materials with rubber
Filed: 1936-04-24
Abstract: Articles are given an adherent rubber coating by the application of a mixture containing rubber latex and sodium silicate, followed by drying and treatment of the dry coat with acid, such as carbon dioxide or hydrogen chloride gas, to render the silicate insoluble. Additional coats of latex may be applied to the latex-silicate coating, if desired after heating the latter to 50 DEG  C.  The absorbent properties of the rubber coating may be reduced and the coating rendered impervious to water and hydrochloric acid by after-treatment with a wax or the like as described in Specification 365,466.  The visibly "waxen" surface resulting can be rendered "dry" in appearance by maintaining above the melting point of the wax for 15--30 minutes.
Patent GB-870086-A (GB)
Title: Anode for cathodic protection
IPC: C23F13/02
Filed: 1958-04-14
Abstract: 870,086. Preventing corrosion. ENGELHARD INDUSTRIES Inc. April 14, 1958 [May 20, 1957], No. 11791/58. Class 123(1) An impressed current anode for the protection of hollow metal objects, especially pipes, comprises a rod 4 of insulating material, e.g. synthetic resin, having an axial bore 8 and a diametrical bore 10 near the end of the rod lying inside the wall 6 of the pipe &c., the rod being secured in an aperture in the wall by a seal type gland (not shown). A platinum or platinum alloy lead-in wire 12 is sealed within the bores 8, 10 by a plastic filler which forms a liquidtight seal and has its free end 14 wound helically around the rod to form the anode surface exposed to the electrolyte. In a modification the helix is replaced by a platinum or platinum alloy sleeve to which the wire 12 is connected.
Patent GB-180652-A (GB)
Title: Improvements in furnaces for burning pulverulent fuel
IPC: F23J1/00
Filed: 1922-04-27
Abstract: 180,652. Soc. d'Utilisation des Combustibles PulvÚrisÚs. May 21, 1921, [Convention date]. Addition to 164,301. Ash-pits.-In the pulverulent-fuel furnace described in the parent Specification, the ashchamber 6 below the combustion chamber 4 is adapted to receive a car 8 lined with refractory material into which the ashes are discharged through the opening 5 in the floor of the combustion chamber.