baber/WOPTO huggingface dataset:
Patent GB-615614-A (GB)
Title: Improvements relating to colour television
IPC: H04N9/11
Filed: 1944-06-12
Abstract: 615,614. Television. GENERAL ELECTRIC CO., Ltd., and JESTY, L. C. June 12, 1944, No. 11200. [Class 40 (iii)] To reduce blurring by colour fringes at the leading and trailing edges of moving objects in a colour television system, signals produced by simultaneously scanning at least two succeeding picture frames of a colour film are combined to produce a composite picture signal in which the proportion of the signals contributed by one of the picture frames is decreased and that contributed by the succeeding picture frame is increased during each frame scanning cycle. Successive frames 12, 13 of a colour film 10 are simultaneously scanned over identical paths by scanning light spots 22, 23, derived from the luminous spot 21 on cathode-ray tube 18 by optical means 14, 15, 16, to generate a composite picture signal in photo-electric cell 25. Two neutral filters 27, 28, graded as indicated by the shading lines, are disposed in the paths of the scanning beams such that as the scanning of both frames proceeds in the direction of arrow 29, the intensity of spot 22 gradually increases to a maximum whilst that of spot 23 gradually decreases to a minimum. In place of the stationary filters 27, 28, two movable graded filters may be employed and operated to produce one cycle of change of intensity at picture-scanning frequency, i.e. three times the frame frequency for a three-colour system. Alternatively, two cathode-ray tube scanners may be employed and the intensity of each light spot varied by electrical means. In a further alternative, two photo-electric cells may be employed and the amplitude of the picture signals generated by each cell varied electrically. The invention may be applied to the inverse method of scanning in which the photo-electric cell is replaced by a light source and the cathode-ray tube by a suitable scanning device (e.g. Nipkow disc) and co-operating photo-electric devices.
Patent GB-818897-A (GB)
Title: Bow-facing rowing mechanism
IPC: B63H16/18
Filed: 1958-09-12
Abstract: 818,897. Bow-facing rowing apparatus. HIGGS, H. R. Sept. 12, 1958, No. 11244/56. Class 114. Bow-facing rowing apparatus comprises an oar formed of two parts, the handle part c and the blade part d. Each part is attached to a Wheel a, b having two grooves in which chains e, f are arranged as shown in Fig. 1, the ends g, h, i, j, being pinned to the wheels. The wheels are enclosed in a grease-packed casing which has bearings k, l mounted on a pivot pin inboard of the gunwale to allow the oar to be shipped.
Patent GB-471662-A (GB)
Title: Rotary moulding press
IPC: B30B11/12
Filed: 1937-04-20
Abstract: 471,662. Moulding powders in rotary machines. NAUTA, J. E. April 20, 1937, No. 11249. Convention date, May 8, 1936. [Class 87 (ii)] In machines for moulding blocks or tablets from powdered substances wherein plungers 4 are moved radially in cylinders in a disc 2 by rollers 5 co-operating with a cam surface 16, the disc is rotated by an arm 9 oscillating about the axis of the disc and carrying a flatfaced lid or cover 20 adapted to be moved within each cylinder in turn during the compression stroke of the corresponding plunger. The cover moves in guides 21 on the arm 9 and is operated by an eccentric shaft 23 that is oscillated to insert and withdraw the cover from the cylinder by fixed abutments engaged by arms on the shaft. The arm has a pawl 12 for engagement with resilient cams 13 on the disc 2. The material is fed from a container 8 and the moulded products 19 are discharged by a projection 18 on the fixed cam. The contents of the cylinder may be varied by providing the cam with an interchangeable track 16. In some cases, each press plunger is adapted to press simultaneously two or more blocks.
Patent GB-1192153-A (GB)
Title: Three-phase Frequency Changer Circuit
IPC: H02P27/06
Filed: 1969-03-03
Abstract: 1,192,153. Control of A.C. motors; static converters. BROWN, BOVERI & CO. Ltd. 3 March, 1969 [5 March, 1968], No. 11319/69. Addition to 1,170,203. Headings H2F and H2J. An A.C. motor 12 is supplied from a frequency-changing circuit comprising commutation groups A, B, each connected to a mains transformer 8 having primary windings 81, 82. The secondary windings of the transformer are divided into sets 83-85 and 86-88 connected to opposite ends of the phase windings of the motor in cyclic permutation. Each set has a diode circuit shunted by a thyristor 1-6 associated with a capacitor and a primary winding of a commutation transformer 10, 16. Each of these transformers has a secondary winding 21 connected across a clamping circuit. A train of pulses comprising two phase-displaced pulse sequences is used to control the thyristors of each commutation group, the repetition rate of the pulses in each of the sequences being the same and determining the frequency of the waveform applied to the motor. If the control and mains frequencies are equal the motor receives unidirectional voltage, the direction of rotation depending on which frequency is the greater. The magnitude of the motor voltage varies in accordance with the phase-displacement between the two pulse-sequences. The harmonic content is reduced when the motor is running in reverse by supplying the thyristors of each commutation group with a stream of pulses phase-displaced with that of the other group. Each stream comprises two phase-displaced trains each constituted by two phase-displaced pulse sequences. For each commutation group, a pulse generator 32 provides a pulse sequence of six times the control frequency, a divider 33 providing antiphase pulses of three times that frequency. One of the pulse shapers 34 is associated with a delay circuit 35, a train of pulses being fed from OR gate 36 to a ring-counter 37 which distributes the pulses to thyristors 28-30. For reverse running as described above, a circuit 38 contains duplicates of elements 28-35 and is associated with time delay device 39. The output pulses from circuit 38 are combined in OR gates 40 with the pulses from the counter 37. When the motor is operating forwardly, the effect of the second pulse train is removed by AND gates 41.
Patent GB-128611-A (GB)
Title: Improvements in or relating to Hulls of Floats for Hydro-aeroplane Flying Machines.
IPC: B64C35/00
Filed: 1917-08-07
Abstract: 128,611. Blackburn Aeroplane & Motor, Co., and Booth, H. Aug. 7, 1917. Floats for aerial machines.-A hull or float for hydro-aeroplanes provided with side planing-fins has the planking of such fins stopped off at or about the lines where they come against the outer face of the hull, and has the planking of the under surface arranged to extend longitudinally tor diagonally, so that where it is stopped off and faces the direction of motion, the planking is cut in a direction other than at right-angles to the grain. The upper planking 13 is connected to the lower planking 7 by a rabbeted fillet 14, and both sets are secured to the hull 10 by rabbeted fillets 12, 15. The fins may be strengthened by interior ribs.
Patent GB-275302-A (GB)
Title: Improvements in rotary engines with moving abutments
IPC: F01C1/46
Filed: 1926-04-29
Abstract: 275,302. Costerton, H. A. April 29, 1926. Movable-abutment type; materials, special.-A rotary engine of the hinged abutment type is provided with inner end plates C cut away at Y so as to form shoulders against which the ends of the abutments D rest throughout their length when in the fully open position, so as to relieve the rotor G of pressure. The abutments D are folded into recesses in the cylinder by the pistons E on the rotor G, but are opened after the passage of the pistons E by the entering fluid pressure at N and by springs T. The abutments are of a light metal, such as aluminium bronze, which may be reinforced with perforated metal plates, or of woven wire frames with asbestos packings. A ratchet prevents rotation in the wrong direction.
Patent GB-129442-A (GB)
Title: Improvements in or relating to Slabs, Plates and the like for Floors, Roofs, Walls, Ships, Vehicles, and other Structures.
Inventor: DYSON HERBERT KEMPTON
IPC: E04C2/04
Filed: 1918-07-11
Abstract: 129,442. Dyson, H. K. July 11, 1918. Floors; roofs and roofing.-Re. lates to slabs, plates, &c. for use in constructing floors, roofs, walls, ships, vehicles, pavement lights, stall boards, tanks, &c. The slab is made of materials that can be cast, moulded or pressed, and is formed on one or both sides with longitudinal and transverse ribs, as shown in Figs. 1 and 3, which are reinforced by means of metal, wood, reeds, straw, fibres, &c. The edges may be made of various well-known forms for the purpose of joining the slabs together. A number of suitable forms of joints are described and illustrated. The flat part of the slab may also be reinforced, and it may be coated with a layer of hard or soft concrete according to the purpose for which it is required. When required for pavement lights, sky-lights, &c., molten glass is poured about the reinforcing material in suitable moulds.
Patent GB-573049-A (GB)
Title: Improvements in and relating to rubber derivatives and synthetic resinous condensation products including rubber or derivatives of rubber
IPC: C08C19/00
Filed: 1942-08-14
Abstract: Rubber and/or reclaim rubber is dispersed in phenol or cresol, an oxidising catalyst, e.g. cobalt naphthenate is dissolved or dispersed therewith, and the rubber oxidized by passing oxygen, air, or ozonized air through the dispersion until a solution soluble in acetone is obtained.  The oxidized rubber may then be reacted with a condensing agent such as formaldehyde with a little oxalic acid to form a synthetic resin which may be separated by distillation of the solvent.  The intermediate resin from reclaim may be hardened by hexamethylene tetramine.  The resins may be powdered and used as adhesives, or for impregnation of fabric or paper for making laminated sheets, or with fillers including, e.g. carbon originally present in reclaim, and with a hardening agent as a moulding composition.  Specifications 417,912, [Group V], 538,922 and 572,828 are referred to.ALSO:Rubber and/or reclaim rubber is dispersed in phenol or cresol, an oxidizing catalyst, e.g. cobalt naphthenate is dissolved or dispersed therewith, and the rubber oxidized by passing oxygen, air, or ozonized air through the dispersion until a solution soluble in acetone is obtained.  The oxidized rubber may then be reacted with a condensing agent such as formaldehyde with a little oxalic acid to form a synthetic resin which may be separated by distillation of the solvent.  The intermediate resin from reclaim may be hardened by hexamethylene tetramine.  The resins may be powdered and used as adhesives, or for impregnation of fabric or paper for making laminated sheets, or with fillers including e.g. carbon originally present in reclaim, and with a hardening agent as a moulding composition.  Specifications 417,912; 538,922 and 572,828, [both in Group IV], are referred to.
Patent GB-610948-A (GB)
Title: Improvements in or relating to the protection of alternating current power systems
IPC: H02H3/46
Filed: 1946-04-15
Abstract: 610,948. Protective cut-out systems; electromagnetic relays. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. April 15, 1946, No. 11482. Convention date, April 16, 1945. [Class 38 (v)] A circuit-breaker 13 connecting an A.C. generator 10 to a load bus 12 is tripped instantaneously in the event of reduced frequency. but only after a time delay on reduced voltage. A frequency relay 16 comprises contact members 23, 26 biassed to a central position, as shown, and actuated by armatures 18, 19 to disengage a contact 27 on low frequency and appreciable voltage in lines 28, 29 or to engage a contact 25 on normal frequency and voltage. A timedelay relay 17 comprises a motor 31 which drives a cam 32 through a de-energized magnetic clutch 33 to open contacts 54, the clutch being spring-biassed into engagement. When the output from the generator 10 has attained normal frequency and voltage, a control relay 45 is energized through contacts 23, 25 so that closure of a manual switch 44 to contact 46 energizes the closing coil 14 of the circuitbreaker 13. Reduced voltage in the lines 28, 29 without any appreciable reduction in generator speed, opens contacts 23, 25 and de-energizes the clutch 33, thereby energizing the motor 31 through contacts 27, 26, 58, 37, 38 and opening the relay 45 when the contacts 54 open. As relay 45 opens, it energizes a trip coil 15 on the circuit-breaker 13. When the clutch 33 is again energized, a restoring spring 42 returns the cam 32 to normal. Reduced frequency in the lines 28, 29 without any appreciable voltage reduction also opens the contacts 26, 27, thereby opening the holding circuit 52, 58, 55 of the relay 45 and energizing the trip coil.
Patent GB-1282661-A (GB)
Title: Prostaglandins and the manufacture thereof
IPC: C07D317/30
Filed: 1970-03-10
Abstract: 1282661 Prostaglandins UPJOHN CO 10 March 1970 [14 March 1969] 11510/70 Heading C2C The invention comprises novel racemic prostaglandins of the formulµ wherein R 1  is H, C 1-8  alkyl, C 3-10  cycloalkyl, C 7-12  aralkyl, phenyl, phenyl substituted with 1 to 3 chlorine atoms or C 1-4  alkyl, or ethyl substituted in the beta position with 3 chlorine, 2 or 3 bromine or 1, 2 or 3 iodine atoms; R 2  is H or C 1-10  alkyl, optionally substituted with 1 to 3 F atoms; R 3  and R 4  are H or C 1-4  alkyl; A is C 1-10  alkylene, optionally substituted with 1 or 2 F atoms, and with 1 to 5 C atoms between COOR 1  and V; V is cis-CH=CH- or -C#C-; and #indicates attachment of the group to the ring in alpha or beta configuration, pharmacologically acceptable salts thereof when R 1  is H, excepting racemic PGE 2  and racemic PGF 2 α, and the preparation of the above novel racemic compounds and racemic PGE 2  and racemic PGF 2 α. Racemic PGE 2  derivatives of the Formula XLII wherein R 1  is other than H are prepared by reacting the oxo or endo forms of disulphonic acid esters of the formula wherein R 14  is the same as R 1  except R 14  does not include H and R 15  is C 1-5  alkyl with water at temperatures in the range of 0 to 60 C. Racemic PGA 2  derivatives of the above Formula XLI, wherein R 1  is other than H are obtained either by reacting the above disulphonic acid esters at temperatures in the range of 40 to 100 C. with combinations of water, bases characterized by their water solutions having pH's 8 to 12, and sufficient inert watersoluble organic diluents to form basic and substantially homogeneous reaction mixtures or by the acidic dehydration of the corresponding racemic PGE 2  derivatives. Racemic PGF 2  derivatives of the Formula XLIII above are prepared reacting the corresponding PGE 2  derivatives with carbonyl reducing agents which do not affect ester groups or ethylenic or acetylenic linkages. Racemic PGB 2  derivatives of the above Formula XL are made reacting the corresponding PGE 2  or PGA2 derivatives with bases whose water solutions have pH's greater than 10. The free acids of the above racemic PGE 2 , PGF 2 , PGA 2  and PGB 2  derivatives form the corresponding alkyl esters by subjecting the said esters to the acylase enzyme systems of microorganism species of Subphylum 2 of Phylum 111. Esters of the above Formulae XL, XLI, XLII and XLIII in which R 1  is an ethyl radical substituted in the beta position by 3 chlorine, 2 or 3 bromine, or 1, 2 or 3 iodine atoms are converted to the corresponding free acids by treatment with zinc dust and alkanoic acids with 2 to 6 carbon atoms. Pharmaceutical compositions, having prosta. glandin-like activity, contain the above novel compounds and pharmaceutical acceptable carriers. The compositions may be in forms suitable for oral, parenteral or topical administration.
Patent GB-566613-A (GB)
Title: Device for dividing butter and the like into blocks of predetermined size
IPC: A01J23/00
Filed: 1943-07-16
Abstract: 566,613. Butter &c. cutters. AVERY, L. G. July 16, 1943, No. 11582. [Class 87 (ii)] A jig for use in dividing slabs of butter, soap, &c. into blocks of predetermined size comprises a row of spaced parallel guides 2, 3, opposite a similar row 2<1>, 3<1>. In use, the slab of butter &c. is placed upon a supporting surface constituted in part by a removable frame-like tray 8, and a wire cutter, extending between the guides and being held against pairs of edges 5 thereof in turn, is pressed downwardly through the slab. Similar guides 4, 4<1> facilitate longitudinal division of the slab. The blocks 4, 4<1> may be replaced by a front stop or by other blocks 6, which are detachably held at the side of the jig, for the purpose of cutting different weights. The guide blocks may extend from a removable frame surrounding the base, or the guide blocks may be replaced by pegs or slotted strips of wood. A tool 10 for separating the cut blocks is held in a bracket 11. A cutter comprises two parallel side arms 13, a taut cutting wire 16, a bar 14 in tension and a bar 15 in compression. The bar 15 is spaced such a distance from the wire 16 that when a slab is cut horizontally from a large block by the wire, the bar 15 sliding on top of the block and acting as a gauge, the thickness of the slab is a proper thickness for enabling it to be cut into small blocks in the jig. The cutter is removably supported on the jig by arms 18 having notched upper ends.
Patent GB-527667-A (GB)
Title: Rug or blanket which can be converted into a bag
IPC: A47G9/06
Filed: 1939-04-18
Abstract: 527,667. Rugs; blankets. STENTA, E. April 18, 1939, No. 11723. Convention date, July 28, 1938. [Class 142 (iv)] [Also in Group XVII] The underside of a rug or blanket is provided at about a quarter of the width from each side edge with sets of sliding-clasp fasteners 2, Fig. 3, so that after folding the end portions inwardly about these positions and doubling the folded parts about the median line 7 the fasteners, which are now at the side edges, can be engaged to form a bag as shown in Fig. 1. In the case of a baby blanket a lining of waterproof material attached by press-buttons may be provided. Removable shoulder straps enabling the bag to be carried on the back may be provided.
Patent GB-697654-A (GB)
Title: Improvements in or relating to combined electric switch and socket units
IPC: H01R13/70
Filed: 1950-05-11
Abstract: 697,654. Switches held set and freed mechanically. FISHER, W. G. May 9, 1951 [May 11, 1950], No. 11723/50. Addition to 545,639. Class 38 (v) [Also in Group XXXVI] In a switch-and-socket unit, fixed switch contacts 33 are secured to U-shaped socket contacts 2. Contacts 34 on resilient bridging members 7 fixed at their other ends to terminals 1 are biased by springs 6 towards contacts 33 and moved away therefrom by a slide 8 engaging the members 7 and actuated by a cam-shaped dolly 9, which is pivoted on a cylinder 11 enclosing an earth socket. Two or more units may be mounted in a single casing having plug-in pin contacts on its lower face connected to bus-bars linking the bridging members of the units Figs. 5-7 (not shown).
Patent GB-884703-A (GB)
Title: Decomposition of iron sulphate
Inventor: HANSFORD KENNETH RALPH
IPC: C01G49/02
Filed: 1957-04-10
Abstract: Sulphur dioxide and iron oxide are prepared by introducing partially dehydrated spray-dried iron sulphate, which is a very fine, substantially dry dust, into a mass of hot coarse inert particles, of size preferably 74-500m , fluidized by an oxygen containing gas, and feeding in, as a fuel, a combustible reducing agent in the form of a vapour, liquid or pulverulent solid, and withdrawing from the bed the sulphur dioxide gases produced, entraining therein substantially all the iron oxide produced.  The bed conditions are such that the iron sulphate is retained therein for sufficient time for substantially complete decomposition.  The bed is preferably 3-5 feet deep, and may comprise magnetite, pyrites cinder, silica, nitile, or zircon.  The fuel may be introduced either mixed with or separately from the iron sulphate, and preferably at a number of distributed points below the bed surface.  Fuels which may be employed include coke, charcoal, anthracite, bitumen, pitch, fuel oil, tar, creosotepitch, hydrocarbons, producer gas, pyrites, pyrrotite, native sulphur, or mixtures of the above.  The preferred fuel is powdered coal, preferably of particle size below 10 BSS, and may be introduced as such or as a slurry in water or fuel oil.  The fluidized bed is preferably supported on a perforated base through which the oxygen-containing gas is admitted, the orifices preferably being such that the pressure drop across the base is between 0,1 and 20 times the pressure drop across the bed, and preferably being fitted with devices which prevent solids entering the orifices.  The oxygen-containing gas may be air, preferably heated to 250 DEG -600 DEG C., and the bed is preferably maintained at 700 DEG -1100 DEG C. The process is preferably so operated that the iron oxide product contains less than 5% carbon and 1% sulphur, and that the emergent gas contains up to 15% sulphur dioxide and less than 6% oxygen, preferably less than 3% oxygen.  The exiting gases are preferably cooled to below 350 DEG  C., for example by passing through a waste heat boiler, before separating out, for example in a cyclone, the ion oxide; any residual iron oxide may be removed by a water spray. Sulphur dioxide thereby dissolved may be stripped by means of an air stream.  Specifications 721,591 and 800,410 are referred to.
Patent GB-934273-A (GB)
Title: Improvements in or relating to extrusion presses
IPC: B21C23/21
Filed: 1961-03-30
Abstract: 934,273. Extruding. FIELDING & PLATT, and R. MADELEY. June 14, 1962 [March 30, 1961], No. 11821/61. Class 83 (4). An extrusion press has a bolster 1 slidably mounted behind the die 2 for severing the extruded product from the discard. A shear ring 14 is preferably inserted in the shear face X of the bolster which is moved in the shearing direction by an hydraulic motor 5 and returned by hydraulic motor D. The die and bolster assembly are mounted in a main transverse slide 7 which is actuated by an hydraulic motor 10, Fig. 1 (not shown), to move the die from the extrusion axis into an inoperative position. In another embodiment, Figs. 3, 4 (not shown), the bolster is moved by a double-acting hydraulic motor connected thereto by a crosshead and long rods.
Patent GB-1122763-A (GB)
Title: Inductive angular position transmitter
Inventor: KAHNE ROBERT
IPC: G01D5/20
Filed: 1967-03-14
Abstract: 1,122,763. Angular displacement transducers. MERCKLE FLUGZEUGWERKE G.m.b.H. March 14, 1967, No. 11828/67. Heading G1N. [Also in Division H1] An inductive transducer for measuring angular displacement comprises two rectangular coils 1, 2 (Fig. 2A) assembled with their planes at right angles, surrounded by a tube 3 of non-magnetic, electrically conductive material, e.g. aluminium, with a longitudinal slot 4. Coil 1 is energized with A. C., and the distortion of the resulting magnetic field produced by the assymetric eddy currents in tube 3 causes an induced voltage to appear in coil 2, whose amplitude is indicative of the angular relationship between the tube and the coil assembly.
Patent GB-140259-A (GB)
Title: Improvements in or relating to toy aeroplane flying machines particularly applicable for use as mascots or ornaments for attachment to moving vehicles
IPC: A63H33/40
Filed: 1919-05-12
Abstract: 140,259. Wright, M. E. A. May 12, 1919. Mascots.-A mascot for a motor vehicle consists of a model aeroplane which is free to slide on a vertical rod 7 attached to the radiator cup of the vehicle and rises to the top of the rod while the vehicle is moving. If desired, a spring may be threaded on the rod 7 between the model and the cap 9 so that the speed of the vehicle may be indicated roughly by the extent to which the model rises on the rod. Words, figures, or advertisements may be inscribed in the planes 2.