baber/WOPTO huggingface dataset:
Patent GB-475725-A (GB)
Title: Improvements relating to froth flotation concentration of minerals
IPC: B03D1/02
Filed: 1936-02-20
Abstract: <PICT:0475725/III/1> In the separation by froth flotation of the halite and sylvite constituents of a halitesylvite ore the halite is removed as a froth in the cell 5 which is kept at a uniform temperature by cooling fluid passing through a coil 14.  The froth is passed to an agitator vessel 16 where it is heated by means of a <PICT:0475725/III/2> coil 18 to dissolve any sylvite which may be present in the froth. It then passes to a thickener 20 where the halite settles, the liquid being returned to the cell 5 where the excess sylvite is precipitated.  In the form shown in Fig. 5, the heating fluid enters the coil 18 from a compressor 22 and after losing its heat in the vessel 16 passes by way of an expansion valve 23 to the cooling coil 14 of the cell 5.  The flotation is preferably carried out in the presence of a metallic cation, e.g. lead, the presence of which prevents the recrystallization of the excess sylvite until a considerable lowering of the temperature takes place, unless solid sylvite is present as seed.  The thickener 20 therefore need not normally be heated when a metallic cation is present in the pulp.
Patent GB-1027193-A (GB)
Title: Synchromesh device for change-speed gears
IPC: F16D23/02
Filed: 1963-02-08
Abstract: 1,027,193. Positive clutches. BAYERISCHE MOTOREN WERKE A.G. Feb. 8, 1963 [Feb. 9, 1962], No. 5207/63. Heading F2C. A split ring servo-synchronizer comprises a friction ring 8 with a slot opening, a radially expandible support element 14 within the friction ring and extending over substantially its entire length, a movable T-shaped connecting member 11 with its stem 11<SP>1</SP> entering the slot opening and positioned for driving abutment between an end of the friction ring 8 pointing in the direction of rotation and an end of the support element 14 pointing in the opposite direction, and a T-shaped abutment member 12 fixed by a projection 12<SP>1</SP> relatively to the hub 2 for contact by the other end of the element 14. In operation engagement of shift sleeve 7 with friction ring 8 brings the end 8<SP>1</SP> of the latter against the stem portion 11<SP>1</SP> to rotate connecting member 11 so that its end 11<SP>11</SP> pointing in the direction of rotation then engages the end 14<SP>1</SP> of expanding member 14, whose other end 141<SP>1</SP> engages the arm 12<SP>11</SP> of stop member 12, so that with further rotation the element 14 is expanded against ring 8. A limit member 13 between members 11, 12 prevents over-stressing of member 14. Modified forms of the expanding member are described, Figs. 3-10 (not shown).
Patent GB-1382247-A (GB)
Title: Benzopyran derivatives
Inventor: CAIRNS H
IPC: C07D311/24
Filed: 1972-02-04
Abstract: 1382247 Benzopyran derivatives FISONS Ltd 16 May 1972 [10 June 1971 30 Sept 1971 4 Feb 1972] 19837/71 45472/72 and 5227/72 Heading C2C Novel compounds (I) (including salts thereof) are made by (a) treating an anhydride, ester or halide of (II) with hydroxylamine, (b) selectively dehydrogenating (IV) or (c) selectively hydrogenating or hydrolyzing (V) where y is a group replaceable by H when hydrogenation or hydrolysis is effected. Pharmaceutical preparations useful in treating, e.g. asthma, hay fever and urticaria contain (I) as active ingredient.
Patent GB-989497-A (GB)
Title: Organic sulfonates and methods for their preparations
IPC: C11D1/88
Filed: 1962-02-12
Abstract: The Specification comprises a surface-active salt of an amphoteric surface-active organic sulphonate of general formula <FORM:0989497/C2/1> wherein B is an organic complex characterized by an organic-nitrogen containing radical joined to the remainder of the molecule through a nitrogen atom thereof, having a terminal hydrocarbon hydrocarbon radical of 6-24 carbon atoms, and having the SO4 group of an organic sulphate radical of a detergent anionic sulphate salt or the SO3 group of an organic sulphonate radical of a detergent anionic sulphonate salt connected directly to said nitrogen atom and M is a cation.  These salts may be made by reacting an anionic organic detergent sulphonic acid or sulphate salt in an aqueous medium with an amphoteric organic sulphonate of the formula <FORM:0989497/C2/2> wherein A is an organo-amino radical joined to the remainder of the molecule through a nitrogen atom and having a terminal hydrocarbon radical of 6-24 carbon atoms.  These compounds may be made according to the methods disclosed in Specification 989,497. Preferred compounds are those in which B is <FORM:0989497/C2/3> in which R and Ra are hydrocarbon radicals of 6-24 carbon atoms; R2 is (a) hydrogen, (b) an alkyl radical of 1-6 carbon atoms, (c) a hydroxy alkyl radical of 2-6 carbon atoms or (d) a 1-15 mole alkylene oxide adduct of said hydroxy alkyl radical; R3 is an alkylene group of 2 to 6 carbon atoms, a hydroxy alkylene group of 2 to 6 carbon atoms or a 1-15 mole alkylene oxide adduct of said hydroxy alkylene group; Q1 is (b), (c) or (d); Q2 is (a), (b), (c), (e), an aromatic, aromatic-aliphatic or aliphatic-aromatic hydrocarbon radical of 6 to 12 carbon atoms or (f) <FORM:0989497/C2/4> each Y is (b), (c), (d) or (e); with each alkylene oxide group being of 2-4 carbon atoms; G is a sulphate radical of an anionic detergent sulphate salt or a sulphonic acid radical of an anionic detergent-sulphonic acid salt; and M is a cationic radical which may be hydrogen, sodium, potassium or other alkali metals. Specifications 853,440 and 853,441 also are referred to.
Patent GB-556818-A (GB)
Title: Brake control mechanism
IPC: B60T11/10
Filed: 1942-04-20
Abstract: 556,818. Hydraulic brakes. DICK, B. April 20, 1942, No. 5243. [Class 103 (i)] A valve 5 for holding vehicle brakes applied 'when the vehicle is on the level or facing uphill is interposed between a master cylinder and the wheel cylinders 8 of the brakes and is controlled by an electromagnet 40. The circuit of which is closed whenever the accelerator pedal is in the off position. The valve 5 comprises two chambers 12 and 13 separated by a partition 14 in which are two passages 15 and 19, the latter of which may be unclosed by the electromagnet 40 acting to move a U-shaped block 30 carrying a conical ended rod 31 to close the opening 19 and the former is closed by a ball 25 rolling down in a supporting cage to seat a valve element 26 carried by the ball cage, when the vehicle is level or facing uphill. The ball also moves away from the opening 27 through the valve element 26 when the car is decelerated by the brakes.
Patent GB-662640-A (GB)
Title: Electronic generators of high frequency alternating currents
IPC: H01J25/64
Filed: 1948-02-24
Abstract: 662,640. High-frequency discharge apparatus. LIGNES TELEGRAPHIQUES ET TELEPHONIQUES. Feb. 24,1948 [March 19, 1947], Nos. 5447/48. Class 39 (i). A high-frequency oscillator or amplifier comprises an electron gun and two pairs of electrodes producing a retarding field and arranged on either side of the axis of the gun; between the source of electrons and the field of the electrodes there is provided an electric or magnetic deviating device, controlled by the output circuit of the apparatus through an attenuator and a phase-shifter, which alternately sends the electrons into the pair of electrodes, the retarding field of which retards the electrons by absorbing their energy. One application is to a magnetron of the reversed cyclotron type, Fig. 2, and comprises two pairs of electrodes 14, 15 and 16, 17 which are situated in magnetic fields of opposite directions so that they oscillate in anti-phase. Part of the output is fed through an attenuator and phase shifter (not shown) to the deflecting plates 18. There may be more than one pair of electrodes on each side of the gun, for example, three pairs. In another application, Fig. 5, electrons from the gun are fired into the retarding field between the pairs of electrodes 37, 38 and 39, 40 which are connected in antiphase so that the electrons oscillate about the grid 27; part of the output is fed through attenuator 34 and phase shifter 35 to the deflecting plates 41.
Patent GB-1382424-A (GB)
Title: Process for heat-treating of thermoplastic linear polyester film
IPC: B29C55/14
Filed: 1971-02-26
Abstract: 1382424 Heat-treating and orienting films AGFA-GEVAERT 10 Feb 1972 [26 Feb 1971] 5564/71 Heading B5B A film made from linear polyester is heattreated during a stretching step. After being stretched longitudinally, the film is transversely stretched under a temperature which gradually increases from a value between the glass transition temperature and a temperature 40‹ C. above this at the start of the stretching, to a value of between 100‹ and 50‹ C below the crystalline melting range of the polyester, at the end of the stretching. The film is stretched to at least 2À5 times its original dimensions in both directions. The polyester is preferably polyethylene terephthalate.
Patent GB-548085-A (GB)
Title: Improvements in coated metal wires
IPC: H01B3/30
Filed: 1941-05-01
Abstract: 548,085. Polyamide coating compositions. BRITISH THOMSON-HOUSTON CO., Ltd. May 1, 1941, No. 5650. Convention date, May 2, 1940. [Class 2 (iii)] A coating composition, particularly for application to metal wire, comprises a superpolyamide modified 10-40 per cent. by weight of shellac. A specified coating composition consists of polyhexamethylene adipamide and shellac dissolved in a mixture of cresol and coal tar naphtha. Copper wire may be passed through this composition and then baked at 300-350‹C. A lustrous block adherent and flexible coating is obtained. Specification 534,158, [Group XXXV], and U.S.A. Specification 2,130,523 are referred to.
Patent GB-704882-A (GB)
Title: Improvements in and relating to the securing of blading to turbine wheels and other high speed rotary members
IPC: F01D5/30
Filed: 1951-03-08
Abstract: 704,882. Turbine blades. ALLEN SONS & CO., Ltd., W. H., and WATSON, C. A. March 7, 1952 [March 8, 1951], No. 5656/51. Class 110 (3) In a turbine or like bladed rotor in which the blades are mounted in circumferential grooves formed in the rotor, being entered therein through a lateral blade-filling gap, a blade or blades adjacent the lateral gap is secured by means of a screwed plug which engages a threaded hole formed partly in the rotor, or a part secured thereto, and partly in the root portion of the blade. The root portion of the blade preferably has a lateral extension which extends into the gap. In Fig. 5, the blade root 11 of the last blade has a lateral non-serrated extension 10 and a filler piece 13 of channel section is fitted into the blade-filling gap. A plug 14 is screwed into a threaded hole formed partly in the rotor and partly in the blade root extension, and also partly in the filler piece 13. In another embodiment, a renewable plug 5 is first screwed into a radial hole in the rotor the serrated circumferential groove 2 and the lateral blade-filling gap 6 are then formed, part of the plug 5 being removed when the lateral gap 6 is formed. The blades are then entered into the groove, the final blade having a lateral non- serrated extension 10. A channel-shaped filler piece 13 is then fitted in the gap and engages the lateral root extension 10. A threaded hole is then formed partly in the plug 5, blade root extension 10 and filler piece 13 into which a plug 14 is screwed so as to lock the blades in position.
Patent GB-556954-A (GB)
Title: Improvements relating to closure devices for vehicle petrol tanks, radiators, and other receptacles
IPC: F01P11/02
Filed: 1942-04-28
Abstract: 556,954. Closures for petrol tanks &c. WESTWOOD RIM & PATENTS, Ltd., and WESTWOOD, S. C. April 28, 1942, No. 5693. [Class 125 (iii)] In a closure device for a vehicle petrol tank &c. in which radially - slidable locking members carried by the cover are actuated to engage the inner surface of the neck of the receptacle, the locking members have studs which engage cam-shaped slots in a disc so that the mem. bers are actuated by relative rotational movement between the disc and locking members. As showr the locking members i are mounted on the base of a chamber g carried by the covei or closure d and carry studs s engaging cam-shaped slots r in a disc q located in the chamber g and rotated by a spindle o rotatable in the cover; the cover may be attached to the neck of the receptacle by a hinged arm, chain or link. In modification the locking members are actuated by rotation of the cover, in one case the cover being secured to the spindle o and in the other, being rotatable thereon and rotating the locking- members relatively to the disc.
Patent GB-209978-A (GB)
Title: Improvements in apparatus for filing documents and the like
IPC: B42F17/02
Filed: 1923-02-27
Abstract: 209,978. Whalley, W. R. M. de, and Roneo, Ltd. Feb. 27, 1923. Cabinets; racks; locking-followers.-In a filing cabinet in which the cabinet drawer is formed with a longitudinal groove or channel 2, the division members 7 of sheet metal are each provided with an integral T-shaped flange 8, which engages in the groove and allows the member to pivot in either direction. The member at the front of the drawer has a flap 14 to space it therefrom. An adjustable locking stop 10 having flanged ends 11 and a thumb-screw 12, operating in a housing 3 in the groove 2, holds the rear members in position. The members 7 are provided with a tubular edge 9, which rests on the sides of the drawer.
Patent GB-846128-A (GB)
Title: Improvements in or relating to the application of a strip to webs of material
IPC: B31B1/90
Filed: 1957-02-20
Abstract: 846,128. Laminates; web-coating apparatus. GAGG, J., and MOLINS MACHINE CO. Ltd. Feb. 20, 1958 [Feb. 20, 1957], No. 5741/57. Class 140. [Also in Group XVII] A web WW intended to be out to form wrappers each with a tear strip attached, has a strip S cut longitudinally by a knife 2 from one edge as it is being fed round a roller 3, the strip being then deflected by eyes 9, 10 and a pulley 11 and superposed on the main portion as the latter passes over a roller 5 and secured thereto. The strip is preferably coloured, wholly or in patches, and may be merely tacked lightly to the main portion as by the printing ink used, acting as adhesive, this being applied by a roller 12 to the strip as shown, or to the main portion, and partially dried by a heater 15 prior to attachment of the two portions. The roller 12 dips into a bath 13, is continuously rotated by a separate motor 16 to prevent drying of the ink, and has a spring pressed doctor-blade 14 reciprocated laterally by a cam 20.
Patent GB-119622-A (GB)
Title: Improvements in or relating to Calendering Machines for Treating Rubber.
Inventor: MELLERSH-JACKSON WILLIAM JOHN
IPC: B29B7/56
Filed: 1918-04-04
Abstract: 119,622. Jackson, W. J. Mellersh-, (Morgan & Wright). April 4, 1918. India-rubber, calendering.-India-rubber calendering-machines are provided with non-driven pressing devices having convex surfaces adapted to act on the product while passing from one pair of rolls to the next. In the machine illustrated in Fig. 1, two pairs of calendering-rolls, 10, 11; 12, 13 are shown, and pressure rollers 15, 23 are provided adapted to act on the rubber before entering the pairs of rolls 11, 12; 12, 13 respectively. The rollers 15 are carried by plates 16 adjustably mounted in guides 17 of plates 18 capable of sliding on bars 21. The second set of rollers 23 are carried by plates 26 adjustably mounted in brackets 28 carried by squared rods 27 which are supported at their centres by bars 30 through bolts 31. Parting-sections 22, 26a are provided on the plates 16 and 26 to prevent lateral extension of the material operated on,
Patent GB-1588948-A (GB)
Title: Hard materials
IPC: C09K3/14
Filed: 1978-02-14
Abstract: Hard material which essentially consists of BxCyNz in tetrahedral form, where x, y and z may have any value which is greater than or equal to 1.
Patent GB-593355-A (GB)
Title: Improvements in weighing apparatus for seed or the like
IPC: G01G13/00
Filed: 1944-03-30
Abstract: 593,355. Treating seeds. AKTIEBOLAGET LAUXIEN-CASCO. March 30, 1944, No. 5911. Convention date, March 16, 1943. [Class 58] [Also in Groups XVIII and XXX] In weighing-apparatus for seed &c., of the type comprising a pivoted weigh-pan 14 which tips on receiving a predetermined weight of seed &c., the weigh-pan carries a scoop 25 which dips into a vessel 26 containing fungicide when the pan tips to discharge the seed, the fungicide being emptied out the discharged seed as the weigh-pan returns to its filling position.
Patent GB-1253496-A (GB)
Title: A sliding clasp fastener and method of making same
IPC: A44B19/24
Filed: 1970-02-09
Abstract: 1,253,496. Sliding clasp fastener. TEXTRON Inc. 9 Feb., 1970 [10 March, 1969], No. 6034/70. Heading B5A. [Also in Division E2] A sliding clasp fastener of the type having continuous helical coil elements, has a hook 34 and eye 42 fastening of the top end of the stringer above the end stops. The end stops at the top and bottom of adjacent sliding clasp fasteners, in a continuous roll, together with the hook and eye of fastening are formed in a single moulding operation, in which the cord 16 on the stringer is impregnated with plastics. Subsequently surplus plastics and the centre of the eye (48) Fig. 2 (not shown) are removed in a stamping machine.
Patent GB-903660-A (GB)
Title: Improvements relating to the manufacture of concrete panels
IPC: B28B7/16
Filed: 1960-02-22
Abstract: 903,660. Slab walls; building panels. WAIN, J., WAIN, G., and WAIN, J. May 23, 1961 [Feb. 22, 1960], No. 6077/60. Classes 20 (4) and 87 (1). [Also in Group V] Concrete panels 10, moulded between dies (see Group V), and having thick marginal portions 11, are provided with holes 12 extending, as shown, through the marginal portions for receiving connecting bolts such as 16. One of each pair of corner panels has additional boltholes extending perpendicularly through the panel.
Patent GB-415151-A (GB)
Title: Improvements in or relating to grilles for doors and the like
IPC: E06B7/30
Filed: 1933-02-28
Abstract: 415,151. Spyholes for doors. LEIGH, V. S., 33, Private Road, Enfield, Middlesex. Feb. 28, 1933, Nos. 6147, 6364, and 20189. [Class 20 (iii).] An aperture in a door for conversation and observation is provided on the outer side with a grille or grid a and on the inner side with a hinged or sliding shutter b. The grille may have a closure which when hinged may be connected by a chain &c. with the inner hinged shutter, Fig. 7. The frames may be bolted together and to stop draught the piece of wood removed to make the aperture may be secured to the inner shutter. The grille may be of any known ventilator kind and may be combined with a letter plate. A fastening or spring-closing hinge is provided on the inner shutter.
Patent GB-856010-A (GB)
Title: Triggered pulse generators
IPC: H04N5/18
Filed: 1957-02-25
Abstract: 856,010. Pulse generator circuits. FERNSEH G.m.b.H. Feb. 25, 1957 [Feb. 25, 1956], No. 6224/57. Class 40(6). A triggered pulse generator comprising a normally inoperative oscillator having a resonant circuit which determines its frequency and is damped by a uni-directionally conductive resistive circuit connected in parallel with it which conducts after the first half cycle of oscillations to produce an output pulse having a duration determined by the oscillator frequency. Fig. 1 shows a pulse generator and a clamp circuit suitable for a television signal in which tube 15 of the oscillator is normally inoperative arid is triggered into oscillation by positive line synchronizing pulses which are applied at 13 and differentiated by network 14, 16 so that the resulting negative peak renders tube 15 conductive so that the circuit oscillates with a frequency determined by the resonant circuit formed by transformer winding 19 and its self capacitance. After the first half cycle of oscillation rectifier 21 and resistor 22 damp out further oscillations so that an output pulse appears at each end of the winding 23 of the transformer having opposite polarities with respect to the centre-tap earth-point, (Figs. 2c, 2d, not shown). The pulses have a duration determined by the natural frequency of the resonant anode circuit of the tube 15. By choice of the time constant L/R of this circuit the generator may be triggered by every nth input pulse applied to it thus operating as a frequency divider. The pulses produced at opposite ends of the winding 23 are applied to a conventional clamp circuit comprising rectifiers 6-9 so as to clamp the television signals which are applied from source 1 to the grid of tube 4, the control pulses applied at terminal 13 being synchronizing pulses derived from the televison signal.
Patent GB-1212167-A (GB)
Title: Bladed rotor for a fluid flow machine
Inventor: ROBEY CHARLES WILLIAM
IPC: F01D5/30
Filed: 1969-02-05
Abstract: 1,212,167. Ducted fan rotors. ROLLSROYCE Ltd. Feb. 5, 1969, No.6238/69. Headings F1J and F1T. A front fan rotor of a gas turbine ducted fan engine comprises a stage of composite blades 16 formed by axially spaced rows of inner aerofoil blade members 17, 18 attached by way of a common shroud 22 to a row of outer aerofoil blade members 20, the number of rows of inner blade members being a simple multiple (in this case two times) of the number of rows of outer blade members. The inner rows converge towards each other in the radially outwards direction and each of the blade members 17, 18 has a root portion 23 having radially extending recesses 24 receiving outwardly directed flanges 25 of the rotor hub 21 which may be formed of epoxy resin reinforced with carbon fibres. Similarly, each outer blade member 20 has a root portion 27 with recesses 30 receiving epoxy resin ring members 31 which inter-connect all the blade members 20. Blocks of elastomeric material 26 in the connection between the inner and outer blade members permit relative radial expansion. Each two axially adjacent inner blade members 17, 18 are angularly spaced apart, whilst each outer blade member 20 is angularly disposed between the two inner members 17, 18.
Patent GB-1281633-A (GB)
Title: Corrosion resistant metal coated steels
IPC: C25D5/26
Filed: 1970-02-10
Abstract: 1281633 Fused metal coatings on steel USUI KOKUSAI SANSYO K K 10 Feb 1970 [4 Sept 1969] 6330/70 Heading C7F A steel substrate e.g. a pipe, is coated with Pb or Pb base alloy and then hot dipped in molten Sn-Cd at a temperature sufficient to form an alloy between the Sn-Cd and Pb. The coating temperature should be just below the melting temperature of the Pb or Pb base alloy. The molten coating bath preferably contains by weight 63-73 parts Sn and 22-32 parts Cd, optionally with less than 10 parts Zn, Sb or Bi. Excess coating of the Sn-Cd may be removed by a wiper so that the fused layer is the outer layer. The steel pipe may be coated with Cu prior to coating with the Pb or Pb base alloy.
Patent GB-1031799-A (GB)
Title: Foamed plastic sorbent material and method for producing same
Inventor: STARK NORMAN HENRY
IPC: B01J20/28
Filed: 1963-02-18
Abstract: A method for producing a sorbent material comprises adding a surface-active sorbent substance to a cellular plastic foam-forming mixture prior to or during the foaming action, and foaming the mixture containing said sorbent substance to incorporate and disperse the sorbent substance throughout the cellular structure of the open-cell foam produced.  The invention is illustrated by means of a polyester polyurethane foam containing silica gel. Other sorbents mentioned are ion-exchange resins, activated carbon, CaSO4, charcoal, clay, CaCl2, and Pd metal.