baber/WOPTO huggingface dataset:
Patent GB-892811-A (GB)
Title: Improvements in diarylazido-compounds and photo-mechanical processes for lithographic printing
Inventor: HEPHER MARTIN
IPC: G03F7/008
Filed: 1957-04-18
Abstract: The invention comprises compounds having the structures <FORM:0892811/IV (b)/1> <FORM:0892811/IV (b)/2> and <FORM:0892811/IV (b)/3> Such compounds are incorporated in compositions comprising water-insoluble organic-solvent-soluble polymeric colloids for use in the production of light sensitive layers (see Group XX).  4 : 41-Diazido-dibenzalacetone is prepared by diazotising p-aminobenzaldehyde, treating the product with sodium azide to obtain azidobenzaldehyde and reacting the latter with acetone in the presence of aqueous ethanol and caustic soda.  1 : 3-Di-(4-azidophenyl) 2 : 3-propen-1-one is prepared by diazotising p-aminoaceto-phenone, treating the product with sodium azide to obtain p-azidoacetophenone and reacting the latter with p-azidobenzaldehyde in the presence of ethanol, water and sodium hydroxide.  1:2-Di-(4-azidocinnamoyloxy)-ethane is obtained by reacting 4-azidocinnamoyl chloride with ethylene glycol in the presence of pyridine and dimethyl formamide.  p-azidocinnamoyl chloride is obtained by nitrating cinnamic acid, separating the 2- and 4- nitrocinnamic acids in the forms of their ethyl esters, reducing the 4-nitrocinnamic acid with tin and hydrochloric acid to 4-amino cinnamic acid, diazotising the latter and treating the product with sodium azide to obtain 4-azidocinnamic acid and treating the latter with thionyl chloride.  Specification 767,985 is referred to.
Patent GB-1516361-A (GB)
Title: Convective power reformer equipment and system
IPC: C10G11/20
Filed: 1975-03-26
Abstract: 1516361 Heating catalyst tubes STONE & WEBSTER ENG CORP 26 March 1975 [9 April 1974] 12721/75 Heading B1F [Also in Divisions C5 and F4] A furnace suitable for use in catalytic or non-catalytic cracking processes comprises process tubes 24 suspended in a hot gas convection section heated by a burner assembly disposed in a combustion section 8, the process tubes being protected from the radiant heat of the burner by a refractory shield 58; the process tubes are suspended by a tube sheet 22 which is sealed by a section 32 to the furnace wall, and a centrally disposed effluent tube 26 passing through and attached to the tube sheet is in communication with the outlet sections 48 of the process tubes. The furnace wall is provided with insulating jackets 10 spaced to define chambers 12 through which a purge gas may be passed from inlets 20. Specification 1516362 describes a catalytic reforming process using the furnace of the present invention.
Patent GB-794413-A (GB)
Title: Improvements in or relating to material-handling machines
IPC: B62D11/10
Filed: 1954-05-03
Abstract: 794,413. Shovelling machines. EIMCO CORPORATION. May 3, 1954 (Aug. 28, 1953], No. 12781/54. Class 68(1) [Also in Group XXXI] An endless track vehicle (see Group XXXI) is provided with shovelling apparatus comprising a bucket 82 carried by rocker members 80 engaging rails 78 on the vehicle. The bucket is operated through chains 92 from winches of the form shown in Specification 794,414. Each member 80 carries a shock absorbing bumper member 84 having a spring loaded piston 86 slidably mounted therein and adapted to engage a plate 88 secured to a bumper frame 90 when the bucket is in the dumping position. Specification 794,415 [Group XXIV] also is referred to.
Patent GB-1127851-A (GB)
Title: Improvements in data transmission systems and in particular in their synchronising arrangements
IPC: H04L7/10
Filed: 1966-03-23
Abstract: 1,127,851. Data transmission systems. COMPAGNIE FRANCAISE THOMSON HOUSTON-HOTCHKISS BRANDT. 23 March, 1966 [25 March, 1965], No. 12890/66. Heading H4P. Synchronization of a receiver in a digital transmission system is achieved by use of a sync. character which precedes a data group, e.g. a group of repeated data in an error correcting system. The received serial bit 8-bit signals pass via a gate enabled by clock pulses at bit rate to a shift register from which parallel 8-bit signals are read out periodically. The register also passes a parallel signal to a diode gate which resets first and second counters when it detects the sync. character. The first counter is fed by the clock pulses, and by way of a first set of diode gates provides sequential pulses at bit rate, and by way of a second set provides sequential pulses at signal rate. The first of the sequential bit-rate pulses reads out the register.
Patent GB-1043102-A (GB)
Title: Purifying sugar solutions and juices
Inventor: MIYAHARA AKIMITSU
IPC: C13B20/14
Filed: 1964-03-26
Abstract: In purifying a dilute, aqueous sugar solution or juice containing dissolved salts, e.g. beet sugar juice from second carbonation or cane sugar juice from phosphate defecation, the solution or juice is passed through a bed or column of a strongly acidic, highly cross-linked, cation exchange, copolymer resin comprising between 10.5 and 50% by weight, or a cross-linking agent, which resin may have a macroreticular structure, and then through a bed or column of a strongly acidic, relatively less cross-linked, cation-exchange, copolymer resin comprising between 1 and 10% of a cross-linking agent, both resins being in the hydrogen (H+) form.  The effluent from the first bed or column may be filtered, or treated with an anion-exchange resin, before being passed through the second bed or column.  The highly cross-linked resin may be regenerated with dilute sulphuric or hydrochloric acid.  The less cross-linked resin may be regenerated with aqueous ammonia and/or caustic soda and/or sodium chloride, followed by dilute sulphuric or hydrochloric acid. Suitable resins are styrene-divinyl-benzene copolymers, in which divinylbenzene functions as the cross-linking agent.  Numerous alternative cross-linking agents are specified.  Macroreticular resins and methods for their preparation are described in Specifications 932, 126.ALSO:In purifying a dilute, aqueous sugar solution or juice, it is passed through a bed or column of a strongly acidic, highly cross-linked, cation-exchange, copolymer resin comprising between 10.5 and 50 percent, by weight, of a cross-linking agent, which resin may have a macroreticular structure, and then through a bed or column of a strongly acidic, relatively less cross-linked, cation-exchange, copolymer resin comprising between 1 and 10 percent of a cross-linking agent, both resins being in the hydrogen (H+) form.  The effluent from the first bed or column may be filtered, or treated with an anion-exchange resin, before being passed through the second bed or column.  The highly cross-linked resin may be regenerated with dilute sulphuric or hydrochloric acid. The less cross-linked resin may be regenerated with aqueous ammonia and/or caustic soda and/or sodium chloride, followed by dilute sulphuric or hydrochloric acid.  Suitable resins are styrene-divinyl benzene copolymers, in which divinyl benzene functions as the cross-linking agent.  Numerous alternative cross-linking agents are specified.  Macroreticular resins and methods for their preparation are described in Specifications 932,125 and 932,126.
Patent GB-122659-A (GB)
Title: Improvements in and relating to the Insulation of the Windings of Electrical Machines and Apparatus.
IPC: H01B3/28
Filed: 1917-09-10
Abstract: 122,659. Cleaver, R. L., and Sandycroft, Ltd. Sept. 10, 1917. Insulation.-The bars or coils of a slot-wound electric machine are insulated by an ebonite covering formed by curing rapidly a mixture of rubber and sulphur with a vulcanizing accelerator such as paranitrosophenol or paranitrosodimethyl. aniline, with or without magnesia or other inorganic accelerator. The surface of the conductor may be tinned or covered with cotton, paper, or rubber without sulphur. The insulation may be partially cured before the coils are inserted into the slots, connexions may then be made, and these connexions may be covered with ebonite mixing, after which the whole rotor or stator &c. may be completely vulcanized. Specification 111,689 is referred to.
Patent GB-714691-A (GB)
Title: Improvements in or relating to attaching shoe bottom members to shoes
IPC: A43B13/32
Filed: 1951-06-01
Abstract: A softening solution, for application to dried coatings of cellulose nitrate adhesive on shoe parts which are to be secured together in a press (see Group VII), comprises a solvent for cellulose nitrate, a liquid which is a non-solvent for cellulose nitrate, and from 0.5 to 15 per cent., based on the weight of the composition, of cellulose nitrate, the mixture of solvent and non-solvent being selected from the following: acetone and benzene in the range of proportions, by volume of solvent to non-solvent, of 45 : 55 to 20 : 80, acetone and toluene (40 : 60 to 25 : 75), acetone and xylene (50 : 50 to 33 : 67), acetone and monochlorbenzene (32 : 68 to 16 : 84), methyl acetate and benzene (90 : 10 to 25 : 75), methyl acetate and toluene (70 : 30 to 30 : 70), methyl acetate and xylene (60 : 40 to 35 : 65), methyl acetate and trichlorethylene (80 : 20 to 38 : 62), propylene oxide and benzene (60 : 40 to 30 : 70) or toluene (50 : 50 to 30 : 70) or xylene (70 : 30 to 50 : 50) or petrol (80 : 20 to 60 : 40) or trichlorethylene (80 : 20 to 40 : 60), acetone and ether (25 : 75 to 15 : 85), ethyl acetate and toluene (45 : 55 to 32 : 68), methyl ethyl ketone and toluene (40 : 60 to 25 : 75), methyl acetate and cyclohexane (95 : 5 to 60 : 40), acetone and trichlorethylene (75 : 25 to 50 : 50), methyl acetate and petrol (82 : 18 to 65 : 35), ethyl acetate and benzene (40 : 60 to 33 : 67), methyl ethyl ketone and benzene (30 : 70 to 22 : 78), butyl acetate and benzene (55 : 45 to 45 : 55) or xylene (65 : 35 to 35 : 65), tetrahydrofurane and benzene (45 : 55 to 28 : 72).  If desired, part of the specified solvent may be replaced by an equal volume of butyl acetate.  The presence of butyl acetate reduces the tendency for a white deposit of cellulose nitrate to show in an undesirable fashion along the crease between the outsole and the shoe bottom of the finished shoe.  The proportion by volume of solvent in the liquid softener is preferably within 15 per cent. of the lowest which can exist without separation of the composition into two phases.  Specifications 408,953, 416,415, 416,667, [all in Group VII], 467,562, [Group III], and 678,377 are referred to.
Patent GB-768023-A (GB)
Title: Improvements in or relating to bobbins for the footropes of trawl fishing gear
IPC: A01K75/06
Filed: 1953-05-11
Abstract: 768,023. Bobbins for fishing nets. HANNEN, G. J., and LLOYD, F. R. May 11, 1954 [May 11, 1953], No. 13110/53. Class 48 A bobbin for a fishing trawl comprises a hollow substantially spherical body 10 of hard rubber having a diametral passage 11 for the footrope formed by a cylinder 13 of hard rubber joined at its ends to the spherical body and defining therewith an annular chamber 15. The diametral passage may have a steel liner 18 bonded to the rubber and the liner may have outturned end flanges 19 :also bonded to the rubber. Vent holes 16 for the annular chamber 15 may be formed in the spherical wall of the bobbin. The annular chamber may be filled with foam or sponge rubber.
Patent GB-1334205-A (GB)
Title: Preparation of fatty acid ester mixture enriched in unsaturates
IPC: C11B7/00
Filed: 1972-03-21
Abstract: 1334205 Fatty acid esters PROCTER & GAMBLE CO. 21 March 1972 [24 March 1971] 13120/72 Heading C2C Mixtures of alkyl (1-4C) esters of unsaturated fatty acids are enriched in the unsaturates by contacting with a two-phase solvent system comprising a liquid hydrocarbon and a homogeneous liquid lower alkyl sulphoxide-lower alcohol solution at a temperature within the range 0‹ to 110‹ F., separating the resultant sulphoxide-alcohol extract phase and hydrocarbon raffinate and recovering the esters from the extract. The alkyl (1-4C) esters are obtained by transesterification of a fat or oil with the 1-4C alcohol in the presence of mineral acids on a basic catalyst. Alkyl esters derived from soybean, safflower, corn, palm, tung, lard and tallow oil may be treated. Hydrocarbon solvents may be pentane, cyclopentane, hexane, octane, 3-methyloctane, hexadecane, cyclohexane, petroleum ether, kerosene and light mineral oil. A dimethyl sulphoxide and methyl alcohol in a weight ratio of 100:1 to 10: 6 may be used.
Patent GB-331618-A (GB)
Title: Improvements in and relating to the connecting rods of piston engines
IPC: F16C9/04
Filed: 1929-04-27
Abstract: 331,618. Birkigt, M., March 11, 1929, [Convention date.]. Connecting-rods.-The cap b, Fig. 2, of a connecting-rod big-end is secured to the body a by means of pins e, preferably slightly conical, which traverse intermeshing flanges d on the body and cap. The flanges may be extended at g to form cooling fins. Alternatively, the flanges on the body and cap may be in line, the cap being secured by means of overlapping plates f. Fig. 5, and pins e<1>. The cap of the master rod of a V or W type engine may be secured in the same manner. In this case the pivot pin of each auxiliary rod is supported at a point between the bearing eyes h, Fig. 9, by a. projection i on the master rod.
Patent GB-1122536-A (GB)
Title: Improvements in electric motor control systems
IPC: H02P7/29
Filed: 1967-03-21
Abstract: 1,122,536. Control of D.C. motors. GENERAL ELECTRIC CO. 21 March, 1967 [13 April, 1966], No. 13173/67. Heading H2J. [Also in Division G3] The speed of a motor, e.g. driving the capstan of a magnetic data tape machine, is controlled by reducing the motor current (e.g. to zero) when the time interval between the leading edges of successive pulses from a tachogenerator is less than the time constant of a timing signal generator. This signal generator preferably comprises two monostable multivibrators 37, 38 in cascade for reliable operation, the first of which is set by the sharp pulses from tachogenerator 72, e.g. of optical type; the output of the second is applied to the terminals R, S of a bi-stable circuit 34 which does not change state, however, until triggered by tachometer pulses applied at T. This is connected to AND gates 24, 26, whose other inputs are associated with "run" and directional signals on terminals 18, 19. The AND gates control switching transistors 46, 88 which in turn control transistors 55, 56, or 54, 57 according to required direction, in series with the motor 15. These are either substantially non-conductive, or conductive by an amount determined by a limiting circuit comprising a potentiometer 95 carrying motor current and a transistor 100. The current is also limited by the conduction of a transistor 75, but during acceleration this transistor is made non-conductive by a bi-stable circuit 22, set by the "run" signal at 18 or 19 and reset by the bi-stable circuit 34 when the speed control becomes effective. Removal of the "run" signal automatically initiates reverse current braking, by bi-stable 21 and AND gates 25, 27, for a time determined by monostable multivibrator 39.
Patent GB-347881-A (GB)
Title: Improvements in machines for producing elastic fabrics
IPC: D04B15/48
Filed: 1930-04-30
Abstract: 347,881. Circular knitting-machines. SALLIS, E., Vernon Works, Basford, Nottingham. April 30, 1930, No. 13244. [Class 74 (ii).] A device for regulating the feed of rubber thread in the production of elastic fabric or garments comprises two feed rollers between which the thread is passed and two cones or equivalent tapered members 7, 8 which transmit variable rotation to the feed rollers to vary the rate and/or tension of the feed. The cones &c. are mounted in a frame 6 which rotates about the stationary needle cylinder. The cone 7 is driven from a rack 2 on the machine table while the cone 8 is driven from the cone 7 by a belt 10 and drives the lower feed roller. The belt is traversed by a nut 15 on a screw 14 which is driven from the cone 7 by a train of gears mounted on a swivelling plate 16 to which is attached a handle 21. The screw 14 is driven forward or in reverse, or is left free according to the position of the handle.
Patent GB-1067583-A (GB)
Title: Radial cord carcass pneumatic tyres and method of producing same
IPC: B29D30/00
Filed: 1964-03-31
Abstract: 1,067,583. Pneumatic tyres. PIRELLI S.p.A. March 31, 1964 [April 11, 1963], No. 13284/64. Heading B7C. A method of making a pneumatic tyre having a radial cord carcass comprises the steps of partially curing a rubber sheet and applying the same to a tyre building drum to form the whole of the radially innermost surface of the tyre, and superposing on the rubber sheet a strip of rubberized parallel cord fabric, the cords of which will, in the finished tyre, be substantially in radial planes of the tyre. The rubber sheet may be axially extended to form chafer strips in the bead regions of the tyre. An adhesive solution may be applied to the contacting faces of the rubber sheet and the parallel cord fabric.
Patent GB-642122-A (GB)
Title: An improved alloy
IPC: C22C18/00
Filed: 1947-05-17
Abstract: In a ternary alloy of zinc, tin and aluminium the ratio of zinc to tin is between 3.0384 and 3.75 and the quantity of aluminium added to 94.5-95 parts of the tin and zinc mixture in the said ratio is 0.15-6.9 parts.  The zinc used may contain impurities such as lead or sulphur, the proportions of metal added being then adjusted accordingly.
Patent GB-1224982-A (GB)
Title: Improvements relating to apparatus for playing or practising the game of golf
Inventor: MULLIGAN ARTHUR RICHARD
IPC: A63B69/36
Filed: 1967-03-22
Abstract: 1,224,982. Practising golf. A. R. MULLIGAN. 21 June, 1968 [22 March, 1967], No. 13403/67. Heading A6D. An upright, non-resilient screen 1, e.g. of hessian or canvas, has a plurality of holes 6, each large enough to allow passage of a golfball, the heights of the holes being arranged to coincide with the trajectory of a golf ball struck by a particular golf club with a predetermined force at a prescribed distance from the screen, there being means associated with the screen to prevent the balls which pass through the holes from continuing in their flight. A generally U-shaped frame 2 may be provided round the screen, having side walls 3 and, optionally, a canopy (not shown). Behind each hole may be an open or closed flexible pocket or a leflector plate.
Patent GB-291218-A (GB)
Title: Novel or improved self closing hinge
IPC: E05F1/12
Filed: 1927-05-19
Abstract: 291,218. Green & Russell, Ltd., H. H., Green, R. H., and Whittingham, J. May 19, 1927. Spring hinges ; barrel hinges. - The closing spring F is arranged so that when the door is closed the axis of the spring is curved and engages at its ends with abutments which are substantially at right-angles to each other. The fixed flap B of the hinge is provided with a quadrant-shaped housing E for the coiled spring F, one end of which rests against a cup-member G and the other end presses against an abutment D of the movable flap A. Instead of using a detachable cup G, the spring may bear against the face of the flap B, in which case a peg projecting from the said face is provided. A peg may also be provided from the face d of the abutment D to locate the spring.
Patent GB-514415-A (GB)
Title: Improvements in or relating to rotary air or other gas compressors or movers or vacuum pumps
IPC: F04C18/344
Filed: 1938-05-06
Abstract: 514,415. Rotary pumps HAY, W. G., WILLETT, S. E., and CLAYTON DEWANDRE CO., Ltd. May 6, 1938, No. 13528. [Class 110 (ii)] A pump, compressor, or the like, with vanes 7 sliding in slots 6 in an eccentric rotor 1, is provided with rings 10 in recesses 8 which prevent the tips of the vanes from leaving the bore 11 of the working chamber. The widths of a recess 8 and a ring 10 are practically the same to prevent the ring from tilting. The rings may be free, or each may have a notch into which a vane extends, to cause rotation of the ring. A ring may be solid or may have a V-split to give resiliency.
Patent GB-660718-A (GB)
Title: Improvements in or relating to hand carrier means for application to or in combination with shopping bags, or the like
IPC: B65D5/46
Filed: 1949-05-21
Abstract: 660,718. Handles. DAVIES, S. Nov. 15, 1949 [May 21, 1949], No. 13616/49. Class 133 A paper carrier bag has cardboard handles d, d<SP>1</SP>, d<SP>2</SP>, d<SP>2</SP> of which the hand-grip portion d extends through a fold slit c in a side a of the bag and which are secured without adhesive by a second and upward fold f <SP>1</SP> in the side of the bag.
Patent GB-813115-A (GB)
Title: Improvements in or relating to cured natural or synthetic rubber compositions
IPC: C08L21/00
Filed: 1955-05-11
Abstract: An ozone-resistant natural or synthetic rubber composition is prepared by curing a vulcanizable mix containing 30 to 60 parts by weight of polyvinyl butyral per 100 parts by weight of natural or synthetic rubber.  Preferably the polyvinyl butyral is blended with a plasticizer, e.g. triglycol dihexoate or dioctyl phthalate, before being added to a rubber master batch containing a curing agent such as sulphur or tetramethyl thiuram disulphide, and other known compounding ingredients.  The synthetic rubber may comprise butadiene-acrylonitrile or butadiene-styrene copolymer.
Patent GB-116817-A (GB)
Title: Button Sewing Machine.
Inventor: FAIRWEATHER WALLACE
IPC: D05B3/16
Filed: 1917-09-22
Abstract: 116,817. Fairweather, W., (Singer Manufacturing Co.). Sept. 22, 1917. Button-attaching machines. -Relates to buttonattaching sewing-machines and is described as applied to sewing-machines of the type having a jogging work-clamp comprising a lower plate 7, and an upper plate 12 supported thereon and pressed towards it by a spring. The button-clamp consists of two arms 19, 15 rigidly and pivotally secured to a carrier 13, which is adjustable in a slot in the plate 12 by a screw 22. The arm 15 is pressed towards the other by a spring 24 surrounding a stud 25 and is provided with a stop 28 and lifting arm 29. The plate 12 with the button-holder is lifted by a pin on the presser-bar 3 engaging an aperture in a plate 46. The treadleactuated lifting-lever 41 is connected by a rod 39 and bell-crank-lever 36 to the rear end of a lever 33 which is pivoted on the lower arm of the jogging work-clamp and carries at its forward end the work-supporting block 80, so that the latter is swung laterally when the button-clamp is raised to provide space for the easy removal and insertion of the work.
Patent GB-591532-A (GB)
Title: Improvements in or relating to selector switches such as are used in automatic telephone systems
IPC: H01H63/04
Filed: 1945-05-11
Abstract: 591,532. Automatic exchange selectors. STANDARD TELEPHONES & CABLES, Ltd. May 11, 1945, No. 13685/46. Convention date, July 29, 1944. Divided out of 591,523. [Class 40 (iv)] In a switch of the type described in Specification 591, 523, the two portions of an inoperative wiper are separated by insulating member 21 which are mounted on pivot pins 22 and 24, and are brought into engagement with inwardly bent portions of the springs 5 (Fig. 2) when a shift bar 25 engages stops 34 at the end of the travel of the carriage in each direction, so that the wipers become operative for traverse in one direction and inoperative for the other. Specification 563,501 also is referred to.