baber/WOPTO huggingface dataset:
Patent GB-745415-A (GB)
Title: Polymers suitable for use as soil conditioning materials
IPC: C08F8/44
Filed: 1953-08-24
Abstract: A water-soluble double salt of polyacrylic acid or of a hydrolysed polymer or copolymer of acrylonitrile or acrylonitrile, in which at least 40 per cent of the nitrile groups have been converted to carboxyl groups and in which the cations of the double salt are calcium and an alkali metal or ammonium, are made by double decomposition, in an aqueous medium, with an alkali, e.g. sodium or potassium, or an ammonium salt, e.g. of an acrylic acid polymer, of a calcium salt of an acrylic acid polymer, or by hydrolysing an acrylonitrile polymer in the presence of calcium hydroxide and either an alkali hydroxide or ammonium hydroxide. The double salt may be used as a soil-conditioning agent and may be formed in situ, e.g. by incorporating in moist soil a dry mixture of a calcium salt of an acrylic acid polymer and a water-soluble ammonium or metal salt, e.g. sodium carbonate, bicarbonate, hydroxide, sulphate or silicate.  The other monomer present in the copolymer may be styrene, isobutylene, vinyl chloride, vinylidene chloride, maleic anhydride or vinyl acetate. In addition to use as a soil-conditioner the polymers may be used as emulsion stabilizers, adhesives, coatings, and wood sealers. Specification 743,606 is referred to.ALSO:The structure of soil is altered, i.e. conditioned, by incorporating in the soil a double salt of polyacrylic acid or a hydrolysed polyacrylonitrile or an acrylonitrile copolymer in which at least 48 per cent of the nitrile groups have been converted to carboxyl groups and in which the cations of the double salt are calcium and an alkali metal, or ammonium.  The double salt may be formed in situ in the soil, i.e. by incorporating in moist soil a dry mixture of a calcium salt of an acrylic and polymer and a water-soluble ammonium or metal salt such as sodium carbonate, bicarbonate, hydroxide, sulphate, or silicate (see Group IV (a)).  Specification 743,606 is referred to.
Patent GB-1432087-A (GB)
Title: Anthraquinone dyestuffs
IPC: C09B1/515
Filed: 1974-05-24
Abstract: 1432087 Hydroxynitroanthraquinones BAYER AG 24 May 1974 [26 May 1973] 23324/74 Heading C2C [Also in Division C4] In Example 1 a mixture of 1-hydroxy-4- bromo-6- and -7-nitroanthraquinones is prepared by reacting a mixture of 1,6- and 1,7- dinitroanthraquinones with calcium oxide in tetramethylene sulphone at 180-190‹ C. and then brominating the 1-hydroxy-6- and -7-nitroanthraquinone formed in the 4-position using oleum and bromine. A mixture of 1-hydroxy- 4,6 - dinitro - and 1 - hydroxy - 4,7 - dinitroanthraquinones is prepared by nitrating a mixture of 1-hydroxy-6- and 1-hydroxy-7-nitroanthraquinones. In Example 2, hydroxynitrobromoanthraquinones are prepared by brominating 1- hydroxynitroanthraquinone using bromine in monohydrate and the hydroxynitroanthraquinone is prepared by reacting dinitroanthraquinone with calcium oxide at 150‹ C. in N- methylpyrrolidone. In Example 4 1-hydroxy-2,4-dibromo-5- nitroanthraquinone is prepared by dibrominating 1 - hydroxy - 5 - nitroanthraquinone with bromine in 20% oleum. In Example 9 1 - hydroxy - 4 - chloro - 6 nitroanthraquinone is prepared by chlorinating 1-hydroxy-6-nitroanthraquinone in 7% oleum using gaseous chlorine. The 2,4-dichloroderivative is also obtained.
Patent GB-832228-A (GB)
Title: Improvements in or relating to ironing boards
IPC: D06F81/00
Filed: 1956-07-27
Abstract: 832,228. Ironing boards; stands for handirons. PAVLO, H. M. July 25, 1957 [July 27, 1956], No. 23363/56. Class 138 (2). A portable ironing board comprises a padded ironing surface 1, folding supports 3 on the underside of the surface 1 movable from a collapsed position substantially parallel to the underside of the surface 1 into an extended position for its support at a height not greater than the width of the surface 1, and a clamping device 4, 5 on the underside thereof for holding a flat iron when the supports are collapsed. In one modification the padded surface is in the form of a loose cover 2 removable for cleaning and the surface 1 formed of a light heat-resistant material and has cut-out areas 7 and/or ribs 6 or flanges. The supports 3 have arms with resilient feet 12, e.g. of rubber, their bases being pivotally mounted in one or more brackets 11. The cover 2 is secured to an outer sheet 10, e.g. of calico, in the edges 8 of which is an elastic cord 9 holding the sheet 10 in place. The members 4, 5 of the clamping device provide a tapered cavity for the point of the iron and a bracket 13 engaging over the other end 14 of the iron, one or both members 4, 5 being secured by a wing-nut or, e.g. a cam-operated quick-release device. Pivoted clamping members 18 secure the supporting legs 3 when folded up, which in a modified form are shaped or carry shaped members, e.g. cross-pieces 6 with the members 4, 5 on them so that when collapsed they clamp the iron. The member 4 in both forms is interchangeable to accommodate various irons. The clamps 4 and/or 5 may be made slidable and spring-urged for holding the iron, the clamp 5 being replaceable by an elastic member extending over the iron. In another modification a folding member is secured at one end of the board to be swung into the horizontal plane and then locked to support the hot iron during ironing. One clamp is then hinged by having a rolled-over portion rotatably mounted about the pivot of one support and is elongated to form a tray for the iron and may have a heat-resistant surface with an intervening arcuate portion co-operating with the underside of the ironing surface to house the flex of the iron when the board is portable. The ironing board may have a patch of heatresistant material between the clamps. The supporting legs 3 may be extensible.
Patent GB-691519-A (GB)
Title: Voltage regulating system
IPC: H02P9/20
Filed: 1951-10-08
Abstract: 691,519. Automatic speed and voltage control systems. BENDIX AVIATION CORPORATION. Oct. 8, 1951 [Oct. 24, 1950], No. 23403/51. Class 38 (iv). The speed and voltage of a motor-alternator set are controlled by carbon pile regulators in the field circuits of the D.C. driving motor and the alternator respectively. The carbon pile 10 in the field circuit of the motor 1 is controlled by a winding 16 energized by the output of a rectifier 17 fed via a choke coil 30 from the output of the alternator so that any change in frequency provides a corrective energization of the coil 16. The carbon pile 34 in the field circuit of the alternator 2 has a main control winding 40 fed from a rectifier 45 connected across the alternator output via voltage setting resistor 48 and a temperature compensating resistor 47; an auxiliary winding 41 opposing the main winding and fed from a rectifier 52 connected across the alternator output via a resistor 53; and a further auxiliary winding 42 aiding the main winding fed from a rectifier 57 connected across the alternator output via a saturable reactor 58. The resistor 53 and reactor 58 are so proportioned that at the normal operating voltage the two windings 41, 42 cancel each other out, whilst a deviation from the normal voltage produces a resultant flux in such a direction as to assist the effect of winding 40 to restore the voltage to normal.
Patent GB-230742-A (GB)
Title: Improvements in egg beaters
IPC: A47J43/10
Filed: 1924-10-04
Abstract: 230,742. Wessell, G. Oct. 4, 1924. Egg beaters. - The driving pinions c<2> have their addendum circles tangential and engage in circular grooves formed in the opposite faces of a sheet-metal driving- wheel f. The frame comprises a wire member a<2> on which the pinions and beaters are mounted, and the ends of which are bent inwardly and riveted to the side members e<2> of a sheet metal frame member e, the lower ends of which are forked and bent round a U-shaped transverse strengthening member d.
Patent GB-931298-A (GB)
Title: Eddy current induction heater
IPC: B29C48/06
Filed: 1960-07-06
Abstract: 931,298. Induction heating. BLAW-KNOX CO. July 6, 1960 [July 17, 1959], No. 23634/60. Class 39 (3). An induction heater for a plastic extruder includes a metal barrel 7, a group of laminated metal flux guides 8, Fig. 3, being mounted on the outer barrel wall, and an electric induction heating coil 26 being located between the guides and the barrel. Located between the barrel and the heating coils 26 is a cooling chamber formed by a non-magnetic steel sleeve 15 inwardly turned at its ends and supplied by cooling fluid through pipes 29, 33. Adjacent the sleeve is mounted a mass 16 of thermal insulating material held in place by heatresistant tape 17 so as to leave an air gap 20 between itself and the heating coils. The lugs 8a, Fig. 5, of the flux guides are cut to the curvature of the barrel walls and are riveted on to flanged semi-circular clamping units 23 held together by screws 25. A symmetrical disposition of the guides may be ensured if the guides are fitted into the channels of channelled spacers 27, Fig. 3, located between coils 26 and the guides. Temperature control is attained by means of a thermocouple located within the annular space 28 between the coils 26. The coils are of copper-wire with a square crosssection. The insulating layer 16 and the air gap 20 serve to prevent overheating of the outside casing of the apparatus.
Patent GB-915261-A (GB)
Title: Improvements in or relating to spasmolyticbronchodilating drugs
Inventor: TEOTINO ULBERTO MARIA
Filed: 1961-06-30
Abstract: The invention comprises the compound of formula <FORM:0915261/IV (b)/1> and its hydrochloride; and a process for the preparation thereof by reacting p-nitrophenyl ethylene oxide with sec. butylamine in an inert organic solvent, collecting the 1-(p-nitrophenyl)-2-sec. butylamino-1-ethanol, preparing the corresponding hydrochloride and reducing this latter with hydrogen in the presence of a hydrogenation catalyst.  Pharmaceutical compositions comprise the above base or its hydrochloride, and a carrier.  Tablets, capsules, syrup and ampoules are mentioned and capsule, injectable and suppository preparations exemplified.  They have antiasthmatic activity.
Patent GB-934927-A (GB)
Title: Improvements relating to electric control apparatus
Inventor: JONES JOHN TUDOR
IPC: B21C37/00
Filed: 1961-06-30
Abstract: 934,927. Control of motors. ENGLISH ELECTRIC CO. Ltd. June 29, 1962 [June 30, 1961], No. 23714/61. Class 38 (3). [Also in Group XXX] In an arrangement for turning a plate through an angle, e.g. 90 degrees, comprising two sets of tapered rollers 11a, 11b driven independently by electric motors 14, the plate is scanned during turning to produce a controlling signal which brings the plate to rest when it is aligned with a given datum. The rollers may be rotated in the same or opposite directions for transport and turning of the plate respectively, controlled by manual switches 21. During turning, the scanning units 16 are energized, each comprising a rotating octagonal mirror and photo-electric cell connected to a thyratron or semi-conductor device arranged to produce signal pulses when the scan reaches the nearer edge of the plate, which is red hot. The signal voltage is related to the distance of that edge from a datum, e.g. the " bite " of rolls, and the voltage from one unit is subtracted from that of the other. A control unit 19 detects (a) when the difference is tending to zero; (b) the sign of the difference; and (c) the sign of the rate of change of the difference, and it is shown that these define the angle of the plate relative to the datum so that at a convenient point a switching unit 20 can be operated to slow and finally stop the rollers when the plate is correctly aligned, using a closed-loop voltage control system (not shown). It is stated that the scanning units may employ radio-frequency waves instead of the light detecting arrangement, and that each roller may be driven by a separate motor.
Patent GB-1116533-A (GB)
Title: Feltable fiber and a method of making same
IPC: D01D10/04
Filed: 1965-06-03
Abstract: In the production of a feltable fibre, i.e. having a surface pattern thereon resembling that of wool, a removable surface region or layer of or on a filament or ribbon is softened (as by heating or treating with a swelling liquid such as water or a chemical), deformed e.g. by passage between embossing, engraving or cutter rollers, so that its outer face, in longitudinal section, assumes an asymmetric, saw-tooth configuration with the inclined surfaces of each tooth defining different angles with the axis of the filament &c., and finally hardened.  When the resultant filament &c., is pulled in one longitudinal direction along a given surface there is a coefficient of friction between the filament &c., and the surface different from such coefficient when the filament is pulled in the opposite direction.  The filament &c., may then be subjected to another heat treatment and/or cut to staple length fibres of 5-10 microns width. The initial filament may be composed of regenerated cellulose, cellulose acetate, nylon, polyesters, polyacrylics, polyolefins such as polyethylene or polypropylene, or polyureas, in which case the saw tooth pattern may be formed directly thereon, or these materials or polyvinyl alcohol, alginates, or other cellulose derivatives may form a layer or coating on smooth natural fibres such as silk, cotton, hemp, and the coating is deformed.  The initial ribbon may be composed of two laminated films having different heat contraction ratios so that, according to the direction thereof, the subsequent heat treatment causes the ribbon to bend into a cylindrical/tubular shape, Fig. 5 (not shown) or a spirally curled fibre.  The surface pattern may subsequently be partially or completely removed by dissolution, heat treatment, swelling or chemical treatment of the filament or fibre &c., so that the shrinkage capacity of yarn, felt or fabric made therefrom, under dyeing or washing conditions for example, is eliminated or modified.  The surface patterned filament &c., or staple fibre may be subjected to felting and/or fulling and/or spun, woven or knitted, perhaps in admixture with other fibres including wool.
Patent GB-880669-A (GB)
Title: A new or improved device for applying treatment medium to eyelashes
IPC: A45D34/04
Filed: 1960-07-07
Abstract: A device for the application of a liquid or pasty substance to the eyelashes comprises a container for the substance and an applicator rod, one end of which is adapted to be introduced into the receptacle, to receive the substance, and is formed with recesses in the form of at least two, oppositely directed, overlapping helices.
Patent GB-768103-A (GB)
Title: Improvements in or relating to semiconductor devices
IPC: H01L23/40
Filed: 1954-08-17
Abstract: 768,103. Semi-conductor devices. GENERAL ELECTRIC CO., Ltd., JONES, D. D., and MISSEN, J. I. July 26, 1955 [Aug. 17, 1954], No. 23933/54. Class 37. A semi-conductor device including a semi-conductor body disposed in a sealed envelope and in thermal contact with a metal part thereof and provided with a set of metal cooling fins which partially surround the envelope has at least one of its leads connected to an insulated terminal on one of the fins. In the device shown the cooling fins are a set of U-shaped A1 channel members 6-10 riveted together at their bases. The semi-conductor device is an N-type Ge body soldered to copper block 1 which is clamped to the fins by nut 12 engaging its threaded part 2. The Ge body, to the upper surface of which a junction forming In electrode is fused, is enclosed by copper cap 3 sealed to the block. A Ni wire from the electrode is sealed into a Ni tube 4 sealed through the cap by a glass to metal seal 5. The tube 4 fits into connector 13 from which wire 14 extends to terminal 15 in an insulating bush 16.
Patent GB-1298582-A (GB)
Title: Jogger stacker machine
IPC: B65H31/34
Filed: 1970-05-18
Abstract: 1298582 Delivering sheets BELOIT CORP 18 May 1970 [21 May 1969] 23980/70 Heading B8R In a method of and apparatus for continuously forming stacks of aligned signatures, a stream of signatures is conveyed through a first zone in which the signatures are jogged to align their side edges and are then conveyed through a second zone in which the spacing of the signatures is increased, the signatures then being collected to form a stack with the leading, trailing and side edges of the signatures being aligned by joggers, conveyance in the second zone being intermittent and that in the first zone being reducable and capable of being stopped to facilitate stack removal. Overlapping signatures, e.g. from a printing press, are transported through the first zone, comprising endless belts 10, 12, their sides being jogged by plates 20 and their folded edges being compressed by an endless belt 26, to the second zone comprising a serrated endless belt 14, an adjustable blade 38 spacing each signature, e.g. so that it overlaps about one half of the preceding signature. Each signature is then accelerated by passing through the nip of guide wheels 60, 62 and is momentarily curved by forming wheels (66), Fig. 2 (not shown), e.g. brush wheels, coaxial with the guide wheels 60 but of greater diameter, so as to impart some rigidity to them as they are discharged onto the support bars 74 of a receptacle comprising jogger side plates 78, an adjustable, fixed front plate 80 and a jogging back plate 82. Wire brushes 84 rotate and engage the top signatures of the stack to depress them and aid alignment. A detector switch 55 indexes the support bars 74 down as the stack forms until, at a certain stack height, a switch (65), Fig. 3 (not shown), causes the conveyers 10, 12 to slow down and conveyer 14 to stop, the support bars 74 being rapidly lowered to a conveyer 86, the belts 87 of which remove the stack. Conveyers 10, 12 are then stopped, the previously fed signatures being piled up by the blade 38 until the bars 74 return to their original position when the conveyers 10, 12, 14 are again driven at normal speed. Stacks are indexed by conveyer 86 beneath the platen (92), Fig. 7 (not shown), of a compressor 90 which compresses the stack to aid subsequent processing.
Patent GB-212585-A (GB)
Title: Improvements in annular muffle furnaces or ovens
IPC: F27B9/16
Filed: 1922-09-05
Abstract: 212,585. Woodall, Duckham, & Jones (1920), Ltd., and Duckham, Sir A. M. Sept. 5, 1922. Tunnel furnaces. - In an annular tunnel furnace of the muffle type, a number of superposed horizontal heating-flues arranged in the walls of the tunnel are connected singly, or in groups of two or more, to the combustion apparatus, so that the temperature may be controlled over the height of the tunnel. The furnace shown diagrammatically in sectional plan in Fig. 4, and in developed sectional elevation in Fig. 6, comprises an open loading and unloading section A, a drying section B extending to a point B<1>, at which drying-air is admitted to the interior of the muffle chamber, a heating-section C extending to the point of combustion, and a cooling- section E. Within the walls of the drying and heating sections are heating-gas flues 10 and air-heating flues 26, and in the walls and roof of the cooling-section are air flues 18, 30, the flues 18 being connected at the junction of the heating and cooling sections with the roof flue 3 through which the air is passed to be delivered into the tunnel at the point B<1>. Gas is supplied to the flues 10 from producers 11 and combustion is effected with secondary air admitted to the flues 26 at the inlets 27, dampers being provided to control the supply of gas to the various flues. The goods are carried on a travelling platform consisting of comparatively short sections connected by expansion joints, or of two or more layers of sections arranged to break joint. The roller supports and driving-mechanism are beneath the floor, and are preferably freely exposed to the atmosphere. In a modification, the flues 26 are omitted, and the air from the flues 18 is used for secondary combustion, the drying-air being then heated either in recuperators or by direct contact with the goods in the cooling section.
Patent GB-471395-A (GB)
Title: Improvements in or relating to carburettor throttle valve control means
IPC: F02D9/00
Filed: 1936-09-03
Abstract: 471,395. Spray carburetters. INTERNATIONAL HARVESTER CO. OF GREAT BRITAIN, Ltd. (International Harvester Co.) Sept. 3, 1936, No. 24136. [Class 7 (iii)] To avoid an excessively high intake vacuum during deceleration of an engine, the closing of the throttle is retarded by means operated by the suction on the engine side of the throttle. In the construction shown, a slotted clamp 22 secured to the shaft 15 of the throttle valve 14 limits the angular movements of a lever 24 freely pivoted on the shaft. The lever 24 carries a pin 25 sliding in a slot 26 in a control member 28 which is secured to a diaphragm 32 in a fixed casing 31. A second casing 33 containing a spring-pressed diaphragm 37 is secured to the casing 31 by a tube 34 which contains a piston 42 held, by a spring 44, against a nozzle 39 carried by the diaphragm 37. The high vacuum momentarily created by sudden movement of the throttle valve 14 towards its closed position is communicated to the casing 33 through a pipe 36 and displaces the diaphragm. When the piston 42 has moved to the end of the bore 43 the diaphragm withdraws the nozzle 39 from the piston and the suction is transmitted through passages 41<1>, 46 to the diaphragm 32 which moves the control lever 28 to bring a screw 30 into engagement with the lever 24 to prevent further closing of the throttle. As the speed falls the vacuum drops and the control lever 28 permits the valve to close. When the piston 42 reaches the position shown, by pressure of the tube 39 against its end, air is bled through passages 48, 45 which may be metered to continue the slow return movement of the diaphragm 32. The throttle valve may be controlled by a single diaphragm.
Patent GB-1005595-A (GB)
Title: Improvements in or relating to top roll carrier and weighting arms for textile drafting machines
IPC: D01H5/50
Filed: 1962-06-22
Abstract: 1,005,595. Drafting-apparatus. SKF KUGELLAGERFABRIKEN G. M. B. H. June 22, 1962 [June 29, 1961], No.24175/62. Heading D1D. Drafting apparatus comprises a top-roll carrier and weighting arm and a top roll carried by a second arm mounted to swing in the carrier arm and a opening between the two arms to face the top roller against a cooperating lower roller, means being provided for varying the pressure applied by the spring. In Fig. 2, the front top roll 10 is carried by a guide arm 8 pivotally mounted on a pin 6 so as to be rockable vertically and horizontally. The pin 6 is carried by a U shaped number 3 slidable in a U shaped carrier 2 and fixed where desired by a screw 5. The arm 8 is weighted by springs 14 extending from upper abutments 16, one of the springs engaging the arm directly, and the other doing so through an adjustable lower abutment 17. This comprises a cup with a flange against which the spring abuts slidable with clearance over a bush 19 fixed to the arm; threaded in the bush with its head engaging the bush is a screw 18 engaging a recess in the cup. The weighting-pressure may accordingly be changed by omitting the screw or changing it for screws of other lengths. Such screws may be of different colours. The second spring 14 may be similarly adjustable. In Fig. 4, the loading of the spring is adjusted by a pin 26 resting at its base on an arm of a pivoted lever 27, the other arm of which bears against an eccentrically-mounted hexagonal member 28, of which the faces are differently coloured, that can be rotated by a tool 32 fitted in one of two bores 33. The pin 26 may bear directly on a member such as 28 that is fast with a shaft extending to an acessible position where it can be turned by a suitable tool. The second spring 14 may also be adjustable by an adaptation of this arrangement, to a different extent if desired, Fig. 8, not shown. A member 39 may limit the fall of the guide-arm when the carrier arm is raised by engaging a stop 40 on the member 3.