baber/WOPTO huggingface dataset:
Patent GB-953139-A (GB)
Title: Paper making
Inventor: UNDERHAY GEORGE FLAXMAN
IPC: D21F5/02
Filed: 1961-11-09
Abstract: The Specification differs from the parent Specification in that only some of the hoods of a series of heated drying cylinders are divided in sections to enable the removal of moisture to be controlled differentially across the width of the web.  These hoods may be of the type described in Specification 934,757.  The other hoods are not divided into sections and have the drying fluid concentrated on the centre of the web.  The hot air for the hoods may be obtained from a suction device or may be heated directly by flue gases or indirectly by steam, or fluid heated by an oil fired furnace.  The series of cylinders also contain cylinders without either type of hood (Figs. 2 and 3 not shown).
Patent GB-1353335-A (GB)
Title: Combustion equipment
IPC: F23R3/04
Filed: 1971-08-27
Abstract: 1353335 Gas turbine burners GENERAL ELECTRIC CO 27 Aug 1971 [2 Dec 1970] 40345/71 Heading F4T [Also in Division F1] At least a portion of the primary air entering a gas turbine combustion chamber 21 flows through a swirler 28 into a Venturi tube 50 also receiving a conical spray from fuel injector 29, Venturi 50 being arranged such that adjacent its throat is formed an over stoichiometric fuel/air mixture incapable of sustaining combustion. Smoke generation and coking of fuel injector 29 are thus reduced. The divergent portion of Venturi 50 is tangential to the spray cone.
Patent GB-890990-A (GB)
Title: Cyclopentanophenanthrene derivative and process for its production
IPC: C07J75/00
Filed: 1958-06-10
Abstract: The invention comprises 17a -vinyl-19-norandrostan-17b -ol-3-one and a process for its preparation by reacting 17a -vinyl-19-nor-testosterone with an alkali metal in liquid ammonia.  A detailed example illustrates the use of lithium as the alkali metal.
Patent GB-1197474-A (GB)
Title: Polymeric Wax Crystal Modifiers for High Wax Content Petroleum Oils
IPC: C10L1/18
Filed: 1967-09-05
Abstract: 1,197,474. Polymeric oil additives. ESSO RESEARCH & ENG. CO. 5 Sept., 1967 [14 Oct., 1966], No. 40549/67. Heading C3P. [Also in Division C5] The examples describe the preparation of the following oil additive polymer and copolymer (1) behenyl fumarate/vinyl acetate copolymer using t-butyl perbenzoate as catalyst and nheptane as solvent and (2) poly-n-C 24  methacrylate using azobisisobutyronitrile as catalyst and n-heptane as solvent.
Patent GB-1432552-A (GB)
Title: Liquid-cooled rotor assembly for an electrical machine
IPC: H02K9/00
Filed: 1974-09-17
Abstract: 1432552 Cooling dynamo-electric machines KRAFTWERK UNION AG 17 Sept 1974 [17 Sept 1973] 40554/74 Heading H2A A liquid-cooled rotor assembly for an electric machine such as a turbo-alternator comprises excitation supply and return conductors 11, 12, disposed in an axial bore 26 in the rotor shaft 1, coolant supply and discharge ducts 25 being disposed around the bore on a circle concentric with the bore, the coolant ducts being connected, at the rotor end of the shaft, through outwardly extending passages 29, 30 to coolant chamber 21. The turbo-alternator shown includes an exciter having an armature 5 formed with coolant supply and discharge ducts 22, 23. The rectifier 6, 7 is connected to conductors 9, 10 in a bore in the exciter shaft 2. The two shafts 1, 2 are mechanically, electrically and hydraulically interconnected by coupling 3. Coolant chamber 21 comprises four separate annular segments 33, 34, alternate ones of which are connected to passages 30 or 29 connected respectively to supply duets 25a and discharge ducts 25b. Radially extending pins 16, 17 interconnecting conductors 11, 12 and field winding leads 20 are directly cooled by liquid from chamber 21.
Patent GB-918835-A (GB)
Title: Improvements in or relating to stools
Inventor: BARTH OTTO
IPC: A47C9/02
Filed: 1961-11-13
Abstract: 918,835. Seats &c. MANUFACTURE FRANCAISE D'ARTICLES DE BUREAU CHAMPION. Nov. 13, 1961 [March 24, 1961], No. 40584/61. Class 52 (2). A stool comprises a seat portion 1 joined to a base 3 which has a curved side piece or pieces serving to contact a support surface on which the stool is placed when the stool is tilted out of its normal upright position, the base being adapted to make contact with the support surface at three or more spaced support points lying on a circle when the stool is in its normal upright position. The base may be suitably weighted so that it is self righting. As shown in Fig. 1 the base has a convex undersurface provided with a plane central support area A which may be formed by making a straight cut through the domed surface leaving a circular edge (not shown) or by forcing the domed surface inwards to form a concave surface 3a. The lower surface is provided with a covering 4 of slip-resistant material, preferably corrugated. The covering may extend over the area A or it may be cut out to expose the concavity 3a. In a modification shown in Fig. 4 the support column 2 for the stool is fixed to a base 5 which has at least three feet 6 which are curved round at their ends 7 sufficiently to allow support to be derived from two adjacent feet when the stool is tilted at least 30 degrees from the vertical.
Patent GB-1216540-A (GB)
Title: Mechanism for stripping a rotary cleaning member of a textile machine
IPC: D01G19/22
Filed: 1968-08-26
Abstract: 1,216,540. Stripping mechanism. N. SCHLUMBERGER & CIE. 26 Aug., 1968 [15 Sept., 1967], No. 40657/68. Heading DIN. A rotary element covered with wire teeth, e.g. a doffing roller 3 employed in a straight comber to recover noils, is stripped by a comb 4, which extends the full width of the element, passing between the wire teeth. Two superimposed pivotal movements, both about axes parallel to the axis of the element, are imposed on the comb 4 during its working stroke so that the comb 4 can penetrate to the bottom of the wire teeth, but only one of these movements is imposed on the comb during its return stroke so that the comb only passes over the tips of the wire teeth. The return stroke takes place at a speed which is higher than the peripheral speed of wire teeth. The comb 4 is pivotally mounted by journals 5 in columns 6 which are pivotally carried on supporting shaft 8. The shaft 8 is itself pivotally mounted in the machine frame and the shaft carries an actuating C-shaped lever 9. By means of arm 12, the C-shaped lever 9 is endowed by the rotational movement of eccentric 15 with a reciprocating pivotal movement about shaft 8 which causes the teeth 22 of the comb to penetrate into the wire teeth of the doffer 3. During this movement, member 17 is caused to carry out a swinging motion around hub 19 so imparting to the comb 4 a second pivotal movement about journals 5 to engage the comb deeper into the wire teeth. The return stroke of the comb is initiated by spring 13 causing the comb to bear against the wire teeth and thus pivot the comb about journals 5 and bring member 17 away from hub 19. Thus only one pivotal movement is imposed on the comb 4 during the return stroke. The mechanism is put into or out of service by means of a lever 29 anchored at one end by a spring 30 and having a roller 34 at its other end which co-operates with the lever 9. When handle 33 of arm 29 is moved in direction F the roller is released from nose 35 of lever 9 and spring 13 then causes lever 9 to pivot in anticlockwise direction so that an arm 12 is released from stop 36 and permitted to co-operate with eccentric 15. The comb 4 can move along bores 7 away from the element to be stripped when excessive resistance to penetration occurs.
Patent GB-1282633-A (GB)
Title: Split sealing rings
IPC: F16J9/02
Filed: 1969-08-14
Abstract: 1282633 Lapping INTERNATIONAL HARVESTER CO 14 Aug 1969 [6 Sept 1968] 40665/69 Heading B3D [Also in Division F2] A split torsion-type piston ring 20a is compressed into a holding fixture 46 and lapped on a flat surface 50 to form at the junction between the end face 38 and the inner periphery a planar primary sealing band having a flatness of 10 to 5 light bands or even 2 light bands.
Patent GB-1058254-A (GB)
Title: Improvements relating to synchronous electric motors
Inventor: PENNY ROY
IPC: H02K29/00
Filed: 1962-10-27
Abstract: 1,058,254. Commutation arrangements for dynamo-electric machines. ELECTRIC & MUSICAL INDUSTRIES Ltd. Oct. 28, 1963 [Oct. 27, 1962], No. 40701/62. Heading H2A. [Also in Division G4] An electric stepping motor has a stator (10) and rotor (11), ), one of which has a closed winding having a plurality of tapping points (a ... i) pairs of which are connected in cyclic order to D.C. input terminals (31, 32) by a pulse-driven electronic distributer. The distributer consists of a ring counter (13) controlling AND- gates (A ... I, A<SP>1</SP> ... I<SP>1</SP>). In Fig. 1 (not shown) the stator (11) is a two-pole permanent magnet or D.C.-energized electromagnet. The positions of the rotor and stator may be interchanged (Fig. 2, not shown), the stator may be multi-pole and the number of stator winding slots may be odd or even. The winding and gates may be carried on the rotor, power supplies and trigger pulses being conveyed thereto by transformer coupling. Starting arrangements may include three or more photo-transistors or coils in the stator to sense the position of the rotor and provide normal commutator operation, starting means and normal drive arrangements (synchronous operation) operating together or switching from one to the other depending on motor speed or the phase between rotor and rotating magnetic field. A separate starting motor or a squirrel cage on the rotor are other possibilities.
Patent GB-1129601-A (GB)
Title: Continuous casting
Inventor: DAIN RICHARD JAMES
IPC: B22D11/06
Filed: 1964-10-06
Abstract: 1,129,601. Continuous casting. DAVY & UNITED ENG. CO. Ltd. 7 Dec., 1965 [6 Oct., 1964; 15 Dec., 1964; 4 June, 1965], Nos. 40750/64, 50970/64 and 23858/65. Heading B3F. In a rotary-drum and endless-belt machine for continuous casting, having belt, guiding rollers 22-25 and, where the steel belt 21 passes round the drum 12, a belt-backing support 38, grooves (35, 41) for the flow of cooling water are formed (1) in the surface of the roller 22 which passes the belt directly to the drum where the melt is poured, (2) in the concave surface 40 of the support 38 and (3) in the surface of the drum 12 on which a steel sleeve (45) is placed to form a mould surface. The meltcontacting surfaces of the belt and drum are coated with zirconia or alumina as insulation and an outer graphitic spray coating to aid separation. The guide roller 23 is adjustable by a cylinder 26 to tension the belt.
Patent GB-1365722-A (GB)
Title: Circuit for use in a duplex operating teleprinter system
IPC: H04L5/16
Filed: 1971-09-06
Abstract: 1365722 Data transmission systems, transistor switching circuits KOMBINAT VEB MESSGERATEWERK ZWONITZ GERATEWERK KARL-MARX-STADT 6 Sept 1971 41392/71 Headings H4P and H3T A circuit for a duplex operating teleprinter system to enable a receiver to block further transmission by a transmitter comprises: a transistor T with its collector-emitter path connected across a counter-transmit solenoid G; a resistor R1 in series with the solenoid G1; and a Zener diode D connected between the base of transistor T and the end of the resistor R1 remote from the solenoid. In order to block transmission, the receiver applies a battery to the line, which either cancels the transmitted current through solenoid G1 or increases it depending on whether a mark or 5 pace is being transmitted. If the current is cancelled, solenoid G1 releases, and if it is increased Zener diode D breaks down turning on transistor T to short solenoid G1 so that it again releases. A further resistor R2 is included to speed switching.
Patent GB-875895-A (GB)
Title: Improvements in or relating to continuous sinter and roasting apparatus
IPC: C22B1/20
Filed: 1958-12-23
Abstract: 875,895. Sintering plant. METALLGESELLSCHAFT A. G. Dec. 23, 1958 [Dec. 30, 1957; Feb. 1, 1958; Dec. 4, 1958], No. 41516/58. Class 82(1) A continuous strand sintering machine has pallets equipped with a sealing mechanism which compensates for incorrect alignment. The pallets have on each side longitudinal chambers in which are mounted slipper members 4 pressed by springs 9 against slipperways 3, the slipper members being able to move appreciably out of the plane of the pallet frame in order to maintain a seal with the slipperways. The chambers may be readily replaceable boxes attached to the pallet frame 1 as shown at 5 in Fig. 2, or recesses in the frame as at 32 in Fig. 7. Movement of the slipping members 4 may be guided by pins 6 (Fig. 2) or 25 (Fig. 7) or simply by the walls of the enclosing chamber. A large part of the weight of the pallets and charge is taken by rollers in the usual way, and control pressure between slipping members and slipperways may be accurately controlled by selection of springs. The pressure should be maintained at a definite level, and suitable limits are 0.05 nd 1 kgm./sq. cm. At these low pressures one of the contacting parts may be of graphite or carbon, when no lubrication is needed. The construction may be adopted to permit cooling of the grate bar supporting beams. These are made hollow as shown at.15 in Fig. 9, and air or other cooling medium forced through them by way of ducts 50 and 51 which communicate with the cavity 41 through contacting holes in the slipper members 4 and slipperways 3, and through pipes 56. The cooling medium is kept separate from the combustion gases, and its direction of flow may be reversed for succeeding beams, groups of beams, or pallet frames. Specification 835,666 is referred to.
Patent GB-1279709-A (GB)
Title: Graft polymerisation
IPC: C08F2/46
Filed: 1969-08-21
Abstract: 1279709 Graft polymerization process INRESCOR AG FUR INDUSTRIELLE FORSCHUNG UND STRAHLENNUTZUNG 21 Aug 1969 [27 Aug 1968] 41856/69 Heading C3G A monomer is graft polymerized on to a substrate comprising a polyester, polyamide, polyacrylonitrile or polyolefin using high-energy ionizing radiation or U.V. radiation, the monomer and substrate being at a reaction temperature in the glass transition temperature range of the polymer forming the substrate. In the examples, (a) polyethylene glycol terephthalate fabric or yarn, polyester foil, polyhexamethylene adipamide fabric, polyamide-6 fabric or modified polyacrylonitrile fabric is grafted with itaconic acid and acrylamide in an aqueous medium, the grafted foil being dyed, (b) polyethylene glycol terephthalate fabric is grafted with itaconic acid and 4-vinyl pyridine in an aqueous medium, the grafted fabric being quaternized with dimethyl sulphate and (c) polypropylene fabric is grafted with styrene in solution in chloroform.
Patent GB-1473329-A (GB)
Title: Aromatic amines
IPC: C07C213/00
Filed: 1974-09-26
Abstract: 1473329 Amines FUJI PHOTO FILM CO Ltd 26 Sept 1974 [27 Sept 1973] 41978/74 Heading C2C The invention comprises aromatic amines comprising an o-aminophenol linked via an unsubstituted alkylene group to a group comprising at least one aryl nucleus having two hydroxy groups in a para-position to each other on a benzene ring of the aryl nucleus, or a quaternized salt thereof, and aromatic amines comprising an o-aminoalkoxy benzene group linked via an unsubstituted alkylene group to a group comprising at least one aryl nucleus having two alkoxy groups in a para-position to each other on a benzene ring of the aryl nucleus. The aminoalkoxy benzene derivatives may be prepared by reacting a dialkoxy-substituted arene with onitroalkoxy benzene carboxylic halide or alkylene carboxylic halide and hydrogenating the product. The aminophenol derivatives may be prepared by treating the aminoalkoxy benzene derivatives with hydrobromic acid, aluminium chloride, boron tribromide or pyridine hydrobromide.
Patent GB-1068261-A (GB)
Title: Improvements relating to beam current control circuits for television cameras
IPC: H04N5/228
Filed: 1965-10-05
Abstract: 1,068,261. Television. OPTISCHE INDUSTRIE " DE OUDEDELFT " N.V. Oct. 5, 1965 [Oct. 6, 1964], No. 42192/65. Heading H4F. The intensity of the scanning beam in a picture signal generating tube of the kind in which video signals are derived from the beam when reflected by the target is controlled in response to the tube output signal so as to maintain a predetermined signal-to-noise ratio in the latter signal. This control results in the beam intensity being just sufficient to cancel the highest charge in any elemental area of the target so that distortions resulting in loss of correct contrast (beam intensity too low) or excess noise (beam intensity too high) are prevented. Fig. 1 shows the arrangement for producing the beam intensity control which is derived as a unidirectional voltage from an amplitude comparator 18 having as one input the amplified and detected 12, 13 video signal output of the tube and as second input the amplified and detected 16, 17 noise output of the tube derived via a crystal filter 15 having a 20 c.p.s. pass-band centred at about 10 Mc/s. The output of comparator 18 is then applied in series with bias potentiometer 6 to the intensity control electrode. The predetermined signal-to-noise ratio may be adjusted by resistors (30, 31, Fig. 2), forming part of comparator 18, the Figure also showing details of elements 12, 13, 16 and 17.
Patent GB-1408891-A (GB)
Title: High surface area carbon fibres and production thereof
IPC: C01B31/08
Filed: 1972-09-12
Abstract: 1408891 Carbon fibres CARBORUNDUM CO 12 Sept 1972 [22 Sept 1971] 42216/72 Heading C1A A method for producing a carbon fibre comprises heating an infusible cured phenolformaldehyde novolac fibre in air from ambient temperature up to an intermediate temperature in the range 250‹ to 450‹ C. at a rate of temperature rise from 50‹ C. per hour to 200‹ C. per hour and further heating the fibre in a non- oxidizing atmosphere, e.g. N 2  or an inert gas, from the intermediate temperature to a final temperature in the range 700‹ to 900‹ C. at a rate of temperature rise of from 50‹ to 200‹ C. per hour. The novolac fibre may be swelled by a polar organic liquid. The carbon fibre may subsequently be heated in steam to a temperature in the range 800‹ to 900‹ C. to increase the surface area from 300 m.<SP>2</SP>/g. to as much as 2500 m.<SP>2</SP>/g. Preferred surface area ranges are from 300 to 1000 m.<SP>2</SP>/g., from 300 to 800 m.<SP>2</SP>/g. or from 400 to 1000 m.<SP>2</SP>/g. The tensile strength of the carbon fibres produced may be at least 15,000 p.s.i. and the maximum Young's modulus of elasticity may be 3 x 10<SP>6</SP> p.s.i. The fibres may be produced in the form of the tows, rovings, yarns, staple and batting, felt, paper and woven or knitted fabrics.
Patent GB-981006-A (GB)
Title: High tensile strength low density glass compositions
IPC: C03C13/00
Filed: 1963-10-25
Abstract: A glass composition consists essentially, in per cent by weight, of: SiO2, 40-55; B2O3, 10-20; Li2O, 0.1-1; MgO, 5-20; Al2O3, 19-29; BeO, 0-8.  The Li2O and MgO may be added as carbonate.  A total of 4% of CaO, ZnO, K2O, BaO, ZrO2 and Fe2O3 may be added.  The density of the glass is 2.33 g./c.c. or less, the elastic modulus is 8.9 x 106-12 x 106 p.s.i., and the strength is 10-50% higher than that of E glass. The constituents may be mixed, melted, e.g. at 2600 DEG  F., in a platinum-lined alumina crucible, till homogeneous and air-free, formed into marbles, remelted at 1700-2400 DEG  F., and drawn into fibres, at e.g. 5000 feet per minute, through a platinum nozzle.  The fibres may be used in the manufacture of glass-reinforced artificial resin articles, especially filament-wound pressure vessels.
Patent GB-1526368-A (GB)
Title: Trolley table with combined folding seat to form a nesting trolley
IPC: A47B39/04
Filed: 1976-10-12
Abstract: 1526368 Combined tables and seats P DESMOULINS and G DESMOULINS 12 Oct 1976 [21 Oct 1975] 42386/76 Heading A4H A table trolley comprises a chassis 1 having an upper support 6 for a table top or tray 2 and a base 8, castors 9 affixed to the base, and a seat 3 attached to the base for relative pivotal movement about an axis x-x<SP>1</SP>, the trolley being nestable with a like trolley. The seat may be detachable and pivot about a vertical axis, Fig. 6 (not shown), and be provided with handles for pushing when the seat is folded. The table top or tray may be detachable and either horizontal or inclined. A platform, Fig. 9 (not shown), may optionally be provided at the front of the chassis and a bag or net secured beneath the seat.
Patent GB-1012190-A (GB)
Title: Improvements in the method of testing, and dryers having means for testing, the moisture content of a material
IPC: D06F34/18
Filed: 1963-11-04
Abstract: 1,012,190. Determining moisture content. CONTROLS CO OF AMERICA. Nov. 4, 1963 [Nov. 26,1962], No. 43379/63. Heading G1N. In a dryer having a rotatable drum wherein it is desired to effect a control function such as switch-off when a predetermined moisture content is achieved, the moisture content is sensed by an electrically conductive button within the drum to which a charge is applied and from which the charge leaks away through the material being dried, the residual charge being measured after a predetermined time. Button 14, Fig. 1, within the tank is supported from the drum wall 12 by an insulator 20 and is screwed into an external conductive member 18 to which the charge is applied by brush 24 and from which the residual charge after a substantially complete revolution of the drum is collected by a brush 26. The collected charge may be used to fire a thyratron in a relay circuit or may be used directly to actuate a relay.
Patent GB-1368424-A (GB)
Title: Fireresistant structures
IPC: E04B1/94
Filed: 1970-09-10
Abstract: 1368424 Intumescent coatings NATIONAL RESEARCH DEVELOPMENT CORP 3 Sept 1971 [10 Sept 1970] 43423/70 Heading B2E [Also in Division A5] A fire-resistant structure comprises a gridlike member defining a plurality of open-ended cells, having side-to-side dimension smaller than the end-to-end dimension, the side walls having a coating of an intumescent material, which on intumescence fills the cells and consitutes a substantially solid obstruction to the flow of gas through the structure. The end-toend dimension of the cells may be about three times the side-to-side dimension. A suitable intumescent paint is a phosphate resin paint.
Patent GB-1358053-A (GB)
Title: Underground gas-storage plant
IPC: F17C3/00
Filed: 1971-09-17
Abstract: 1358053 Storing gases GAZ DE FRANCE 17 Sept 1971 [18 Sept 1970] 43533/71 Heading F4P Constant-volume underground gas-storage is afforded by an artificial cavity C that may be formed in salt stratum and a well with a cemented casing 10 and a heat-insulating oil or inertgas jacket 11, which is closed at its lower end by a sliding seal J, liquid, such as oil-covered brine, S for sealing purposes being supplied through a conduit 13, 15 with a plug 14 preventing the liquid rising there-above, and abrupt expansion of gas from inlet and discharge passageways 18 being obviated by a valve member 16 in an oilpressurized tube 19. "Valves" 22, 24 facilitate insertion of tools or replacement parts.