baber/WOPTO huggingface dataset:
Patent GB-889707-A (GB)
Title: Improvements relating to olefin copolymers
IPC: C08F210/00
Filed: 1960-10-18
Abstract: Copolymers of olefins, e.g. ethylene/propylene, and ethylene/1-butene, of controlled molecular weight, are made by copolymerizing a mixture of the olefins in the presence of a catalyst consisting of an organometallic compound of a metal of Group I, II, or III of the Periodic Table other than aluminium and beryllium, with a halogen compound of a transition metal belonging to Group IVa, Va, or VIa of the Mendeleeff Periodic Table, in which the molar ratio of the organometallic compound to the transition metal halide is from 1 to 10, and controlling the molecular weight of the copolymer by increasing the catalyst molar ratio to obtain a copolymer of lower intrinsic viscosity.  During polymerization pressure is kept constant by introducing one of the olefins.  The transition metal compound may be vanadium tetrachloride, and the organometallic is preferably selected from alkyl derivatives of zinc, cadmium, or mercury, e.g. zinc diethyl. The copolymers are vulcanizable under heat and pressure, in the presence of carbon black, butyl cumyl peroxide, and sulphur.
Patent GB-1536864-A (GB)
Title: Testing adhesion between webs
IPC: G01N19/04
Filed: 1976-09-02
Abstract: 1536864 Testing adhesion of webs MOLINS Ltd 2 Sept 1976 [2 Sept 1975] 36013/75 Heading G1S The adhesion between two webs CW, WW, at least one of which carries a line of adhesive, is tested by driving the webs at the same speed, compressing the webs into adhesive contact, feeding the united webs along a straight path, separating the webs by passing them around a pair of spaced pulleys 38 at opposite sides of the path, and measuring the force on at least one of the pulleys. The webs are fed from reels 2, 4 into reservoirs 6 and then over a convex guide shoe 8 which have perforated surfaces to which suction is applied to tension the webs. Web CW passes a heater 11 and adhesive applicator 12. The webs are united by means of a pair of rollers 16, 18 mounted on a crosshead vertically adjustable on guides 27. Roller 16 is fixed to the crosshead but roller 18 is mounted on a lever 20 pivoted to the crosshead, and the compressive force applied to the webs by roller 18 is determined by weight 24 hung from the lever. The separating pulleys 38 are mounted on cantilever springs 34 which carry strain gauges and which are mounted on holders 36 slidable in slots 32 of a cross-bar 28. The holders 36 allow the inclination of the springs 34 and the separation of the pulleys 38 to be adjusted, and cross-bar 28 is adjustable vertically along guides 30. The separated webs pass between drive rollers 40, 42, the position of each drive roller 42 around the corresponding roller 40 being adjusted so that the respective web passes both rollers tangentially. From the forces acting on the pulleys 38 as measured by the strain gauges on the springs 34, the position of the point of separation S of the webs, and the geometry of the device, the adhesive force between the webs may be calculated. The webs may be of wrapper and imitation cork material or used in cigarette manufacture, or may both be of the wrapper material. The adhesive may be be polyvinl acetate, starch paste or a hot melt adhesive. The webs may be pre-coated with adhesive.
Patent GB-366639-A (GB)
Title: Improvements relating to caps for bottles
IPC: B65D53/04
Filed: 1930-11-29
Abstract: 366,639. Coated fabrics ; compound sheet material coating webs. CROWN CORK & SEAL CO., Inc., Highlandtown, Baltimore U.S.A.-(Assignees of Warth, A. H. ; 39, York Court, Baltimore, U.S.A.) Nov. 29, 1930, No. 36025. Convention date, Dec. 17, 1929. [Class 140.] A composite material, from which discs for bottle caps may be punched, comprises a sheet of paper, or metal foil, having an exposed coating of varnish on one surface and a coating of guttapercha on the other surface. The paper a, which is preferably a hard, high gloss paper of water finish, known as Express paper, is unwound from a roll and drawn by draw rollers g between hot and cold rollers e, f of a guttapercha mill by which a thin coating c of fused. guttapercha is applied and rolled into the paper, the other side of which has been pretreated with a coating b of a non-absorbent, gas impervious and acid-resisting varnish formed preferably of a resin, china wood oil, a drier, and a plasticizer. In applying a disc of this composite material to a bottle cap, by heat and pressure, the guttapercha may be bonded directly to the inside of the cap or to a cushion disc of cork &c. placed therein. The guttapercha may be replaced by mixtures, of guttapercha and balata gum and the Express paper may be replaced by Sulphite paper or Bleached Kraft paper.
Patent GB-1270273-A (GB)
Title: Improvements in and relating to electrophotography
Inventor: CULHANE MORRIS BURKE
IPC: G03G15/02
Filed: 1969-07-17
Abstract: 1,270,273. Electrostatic charging apparatus. EASTMAN KODAK CO. July 17, 1969 [July 22, 1968], No.36058/69. Heading G2H. A photo-conductive surface 3 is uniformly charged by corona wires 1 within a shield 2 held at a high potential V 1 . A grid 6 held at a lower potential V 2  has wires decreasing in space towards the right. Where the spacing is at a maximum the ion leakage through the grid is at a maximum and vice versa. The surface 3 is moved in the direction of the arrow X and in so doing will be subjected to a high potential initially which then decreases to the voltage source 11. In other embodiments, the voltage across the grid is decreased in the direction of movement of the photo-conductor, Fig. 7 (not shown) or the spacing and voltage is decreased in this direction Fig. 9 (not shown).
Patent GB-324177-A (GB)
Title: Improvements in lung testing devices
IPC: A61B5/091
Filed: 1928-12-06
Abstract: 324,177. Stevens, C. H. Dec. 6, 1928. Spirometers. - A lung capacity testing device of the kind wherein the expelled air displaces liquid from one bottle to another has an expansive chamber which is distended by the person under test. One bottle has an outlet d connected by a tube h to the other bottle. A Y-tube e passes through the closure e of the first bottle and its limbs b, i terminate respectively in a mouthpiece a and distendable bladder f. The air from the lungs of the person under test first distends the bladder as at g, the mouthpiece is then clipped and the air from the bladder displaces water from the firsb to the second bottle.
Patent GB-837103-A (GB)
Title: Improvements in or relating to methods and apparatus for the manufacture of paint roller covers
IPC: A46D9/02
Filed: 1956-11-27
Abstract: 837,103. Pile straightening and shearing. SEAMLESS COVERS Inc. Nov. 27, 1956 Jan. 30, 1956], No. 36176/56. Class 42 (1). The pile of a tubular fabric roller cover is successively and repeatedly straightened and sheared while the cover is rotated about its axis. The cover may be of tubular knitted fabric or may be made from natural wool pelt or knitted fabric seamed helically or longitudinally to form a tube. The covers are successively placed on continuously rotated spindles 23, on a continuously indexed rotary table 22, at a loading station 25, Fig. 1. Each cover then pauses in succession, for several seconds, at three combing stations 26, 27, 28, a first shearing station 29, two further combing stations 30, 31, a second shearing station 32, bottom and top bevel shearing stations 33, 34, a highvacuum station 35 and an unloading station 36. Vacuum is provided for a nozzle at each combing or shearing station from sources 37, 42 and high vacuum to stations 32, 35 from a source 50. Fibres removed from the covers at stations 26, 27, 28 are collected at source 37 to be reused. Pile combing.-At each combing station, spindle 23, Fig. 8, rotates at about 30 revolutions per minute and a comb 80, having radial wire teeth 75, rotates oppositely and slightly faster. The vacuum conduit, such as 39, strips loose fibres from the comb teeth. Preferably, combs at successive stations are progressively finer. Shearing.-At each shearing station, a highspeed rotary cutter 97, Figs. 9 and 10, and a stationary cutter 103 are mounted on a bracket 93 which can be swung back about a pivot 126 on a slide 125, for sharpening and adjusting the cutters. Slide 125 is adjustable by means of a screw 129. The low-vacuum conduit, such as 44, communicates with the space around the cutter 97. At station 32, the cover is subjected to high vacuum through a nozzle 120. At the bottom bevel shearing station, Fig. 11, a small rotary cutter 112 co-operates with a stationary cutter to bevel the end of the cover. Cutter 112, together with its driving motor 111, is mounted on a plate 110 angularly adjustable on a vertically adjustable slide 107. The top bevel shearing mechanism is constructed similarly.
Patent GB-1043898-A (GB)
Title: Improvements in and relating to transmissions for driving the roll stands of universal or tube reducing mills
Inventor: DORP WALTER VOM
IPC: F16H47/02
Filed: 1963-09-16
Abstract: 1,043,898. Rolling. MANNESMANN. MEER A.G. Sept. 16, 1963, No. 36310/63. Heading B3M. An arrangement for driving the rolls of a rolling mill having a number of closely spaced stands, comprises a motor driven input shaft 2 which drives, through bevel and spur gearing 3, twin input gear units 4. The units are connected by spur gearing 14 and universally jointed shafts to the rolls 6. Shafts 11 a transmit the input drive to the impellers 11 of hydraulic transmissions 7 which are controlled by servo motors 8 and whose outputs are fed to the units 4. The gear units are disposed symmetrically about a central horizontal plane in a single housing 9 which is divided vertically into two halves.
Patent GB-1271393-A (GB)
Title: Coupling and power control device
IPC: F16K11/16
Filed: 1969-07-18
Abstract: 1,271,393. Controlling hoists. INGERSOLLRAND CO. 18 July, 1969 [26 Aug., 1968], No. 36360/69. Heading B8B. [Also in Division F2] A power control device for a fluid powered hoist includes a sleeve 4 manually displaceable to effect a proportional movement of a load on the hoist in the same direction as the displacement, the device being placed in series in the cable between the hoist and its load. The sleeve 4 is centered in an inoperative position by springs 27 and is pinned to a spool 24 slidable within a control chamber 17 to control opening of spring closed elements 21 at the ends of the chamber, recesses 31 in the ends of the spool 24 being out of alignment with conical ends of the elements 21 so that the latter are tilted before being lifted during opening. Pressure fluid is supplied to the device input 5 in communication with an inlet chamber 15, and the output 6 from the device to the hoist actuating chamber is in communication with an outlet chamber 16 via a metering orifice 37 associated with an adjustable fluid regulator 34. In operation, downward movement of the sleeve 4 over rollers 42, causes the spool 24 to open the element 21 in wall 19, and fluid in the hoist actuating chamber is vented past the element into the chamber 17 and through a passage 32 in the spool to an exhaust passage 33 open to atmosphere, whereupon a load on the hoist is lowered. Opposite movement of the sleeve 4 opens the element 21 in wall 18 and pressurized fluid is supplied to the chamber 17, through passage 32, and provided this pressure is in excess of that in the hoist actuating chamber, the element 21 in wall 19 is opened and the pressure supplied to the hoist chamber to raise a load on the hoist. In another embodiment, the hoist is electrically powered and the sliding spool operates limit switches to control the hoist motor.
Patent GB-333480-A (GB)
Title: Improvement in driving means for wire stranding machines
IPC: D07B3/06
Filed: 1929-11-28
Abstract: 333,480. Waterbury Tool Co. Jan. 5, 1929, [Convention date]. Machines for making. - Hydraulic speed gearing comprising a rotatable fluid presure pump 22 and a rotatable fluid pressure motor 21 is provided for changing the speed of the take-up capstan 20 of a rope machine relatively to the speed of the flyer 10 carrying the wire-supply bobbins. The pump and motor may be spaced apart, as shown, and connected by pipes 23, 24, or may be formed in one unit. The pipes 23, 24 may be water-cooled.
Patent GB-1548954-A (GB)
Title: Permanent magnet materials
IPC: C22F1/10
Filed: 1976-09-06
Abstract: Permanent-magnetic material containing cerium mischmetal, whose composition is based on rare earths and cobalt with an atomic ratio of rare earths to cobalt of approximately 1:5, and samarium, in which the proportion of the rare earths consists up to a half, based on the atomic ratio of the rare earths amongst themselves, of the natural alloy didymium which is produced in the metallurgical extraction of rare earths and contains approximately 75 atom% of neodymium, 22 atom% of praseodymium and up to 3 atom% of a mixture of cerium, lanthanum and samarium.
Patent GB-881951-A (GB)
Title: A method of manufacturing pre-moulded fibre strand-reinforced synthetic polyester parts having a smooth and even surface
Filed: 1957-11-27
Abstract: In the manufacture of a pre-form of fibre strand-reinforced synthetic polyester for use as reinforcement in moulded articles of synthetic resin and having a smooth and even surface, a body of filament-strand material is built up and single and separate staple fibres are distributed over one or more surfaces thereof. The preform may be of cotton, cellulose, linen, or synthetic organic fibres, or glass fibres, bonded by a polyester resin.  A pre-form for use in a motorcyclist's or a miner's helmet is made by cutting glass staple fibre slivers by a machine and depositing them as a thin layer of single fibres on a mould surface.  Glass fibres strands chopped by a secured cutting machine are then deposited on the single fibre layer to a desired thickness, and are covered by a further layer of single fibres.  A synthetic polyester binder is then sprayed on to the fibrous mass, which is then dried in an oven.  In an alternative method a large preform is coated with single staple fibres by blowing the latter through a nozzle.
Patent GB-1465758-A (GB)
Title: Fluid pressure operated braking systems for vehicles
IPC: B60T8/1764
Filed: 1974-08-30
Abstract: 1465758 Antiskid braking systems AUTOMOTIVE PRODUCTS Ltd 30 Aug 1974 [14 Sept 1973] 36961/74 Heading F2F An antiskid system wherein the time for which the brakes are released is sensed and if greater than a predetermined time the antiskid control is rendered inoperative to permit reapplication of the brakes includes a wheel speed comparison arrangement in which a signal indicative of wheel angular velocity is monitored, a reference signal related to vehicle speed is produced and the wheel speed signal is compared therewith, the brakes being released and not re-applied if the magnitude of the reference signal exceeds that of the wheel speed signal by more than a predetermined amount, the arrangement being such that the control system operates normally whilst the wheel speed signal is greater in magnitude than the reference signal less a predetermined amount. The fault detection circuit 21 has an OR circuit 22 with its two input terminals connected respectively to the antiskid output circuit 15 and to a solenoid position sensing circuit 23 which determines whether or not the control valve is in the brake release position. The output of circuit 22 is connected to a switching circuit 24 connected to an isolating circuit 25 which is arranged to disconnect the supply of electrical energy from circuits 11, 14 whenever circuit 24 produces an output signal so that the control valve is not energized. The circuit 25 is connected to a warning lamp and the arrangement is such that when the power supply has been cut it can only be restored after first switching off the vehicle ignition. A circuit 27 is energized when the ignition is switched on to test whether the warning lamp is operating correctly.
Patent GB-522955-A (GB)
Title: Improvements in or relating to lanterns for electric lamps
IPC: F21S13/00
Filed: 1938-12-20
Abstract: 522,955. Lighting fitting. BRITISH THOMSONHOUSTON CO., Ltd., and BERTRAM, J. Dec. 20, 1938, No. 37075. [Class 75 (iv)] A lamp giving one way illumination is made up of a refracting half B and a reflecting half 4, 5, 6. The halves are taken from lamps described in Specifications 491,257 and 516,012 respectively. Specification 485,801 also is referred to.
Patent GB-1275249-A (GB)
Title: Dental cement
IPC: A61K6/06
Filed: 1970-07-31
Abstract: 1275249 Dental cement INDIANA UNIVERSITY FOUNDATION 31 July 1970 [2 Sept 1969] 37117/70 Heading C3N A dental cement comprises (A) a dental cement powder which comprises (a) sintered zinc oxide having a particle size of 2 to 10 microns; (b) not more than 0À5% magnesium oxide, by weight of the cement powder; and (c) 0À5-20% by weight of the cement powder of one or more of the following fluorine containing compounds: stannous fluoride, stannous hexafluorozirconate, indium fluorozirconate, zirconium hexafluorogermanite, zirconyl hexafluorofluorogermanite or indium hexafluorogermanate; and (B) phosphoric acid. The dental cement may further comprise 3-15% by weight of a tin oxide which assists in the sintering of the zinc oxide. The zinc oxide may be present in an amount 65-99À5% by weight of the powder. The zinc oxide is sintered at 1800-2500‹ F. and subsequently ground to the desired particle size.
Patent GB-824514-A (GB)
Title: Novel unsaturated esters and the manufacture thereof
IPC: C07C29/42
Filed: 1957-11-29
Abstract: The invention comprises new esters of 3-methyl - 6 - substituted - hexyn - 1 - ol - 3s and 3 - methyl - 6 - substituted - hexen - 1 - ol - 3s having respectively the general formula <FORM:0824514/IV (b)/1> and the corresponding formula wherein the triple bond is replaced by a double bond, wherein R stands for the cyclohexylidene radical or 1,3-dimethyl-butylidene radical and R1 stands for hydrogen or an alkyl group having up to 9 carbon atoms.  Some of the esters exist as geometrical isomers.  The acetylenically unsaturated alcohol esters are prepared by reacting the acetylenic alcohol, in the presence of an esterification catalyst, with a simple or mixed alkanoic acid anhydride containing 1-10 carbon atoms in one acyl group and 2-10 carbon atoms in the other, a mixed anhydride containing the formyl group being used where the formate ester is required, and the dienic esters may be obtained by catalytically hydrogenating the resulting acetylenic alcohol esters with one mol. of hydrogen in the presence of a catalyst which selectively catalyses the reduction of a triple bond to a double bond such as a palladium/calcium carbonate catalyst partially deactivated by treatment with a lead salt, which catalyst may contain some quinoline to enhance its selectivity. The esterification may be effected at room temperature in the presence of an inert solvent.  The formates are suitably prepared using the mixed anhydride of acetic and formic acids obtained by mixing acetic anhydride with formic acid at not above about 30 DEG  C. The esters may be used in perfumery.  Examples describe the preparation of the formate, acetate, propionate and isobutyrate of the two acetylenic alcohols and of both dienic alcohols and the butyrates of the two acylic alcohols.  Specification 814,636 is referred to in a disclaimer.  3,7,9 - Trimethyl - decen - 6 - yn - 1 - ol - 3 is prepared by reacting 3,5-dimethyl hexen-1-ol-3 with concentrated HC1, reacting the resulting 1-chloro-3,5-dimethyl-hexen-2 with ethyl acetoacetate in the presence of sodium methyl -ate, reacting the resulting 3-ethoxy carbonyl -6,8-dimethyl-non-5-one-2 in ethanol with aqueous KOH, treating the resulting potassium salt of 3-carboxy-6,8-dimethyl-nonen-5-one-2 with concentrated HC1, reacting the resulting 6,8 -dimethyl-nonen-5-one-2 in ether with acetylene in the presence of sodamide and treating the product with aqueous H2SO4 to yield the desired acetylenic alcohol. p   3 - Methyl - 6 - cyclohexylidene - hexyn - 1 - ol - 3 is prepared by a similar sequence of steps from 1-vinyl-cyclohexanol.
Patent GB-1420044-A (GB)
Title: Zeeman effect absorption spectrometer
IPC: G01N33/02
Filed: 1973-08-07
Abstract: 1420044 Photo-electric determination of trace metals UNITED STATES ENERGY RESEARCH & DEVELOPMENT ADMINISTRATION 7 Aug 1973 [13 Sept 1972] 37345/73 Heading G1A [Also in Division H5] To detect trace amounts of poisonous metal, e.g. Hg in fish, the host material is vaporized and is absorption analyzed by a beam of light having two distinct frequencies only one of which is absorbed by the metal in the vapour. The two frequencies are obtained by Zeeman splitting the light from one source; in the case of Hg the source is an Hg <SP>198</SP> or Hg <SP>199</SP> vapour lamp and as a result of the splitting one Zeeman component lies at the peak absorption frequency of Hg and the component used as a reference lies outside the Hg absorption band. The two components can be separated after passage through the vapour so that by differential measurement of the components the amount of absorption due to Hg is found. In Fig. 1 the U.V. light from Hg <SP>199</SP> is Zeeman split by magnet 28 and focused into the vapour of a sample 12 in furnace 16. The light then passes through filter 61 and is focused via lens 65 and beam-splitter 63 on to two photo-multipliers 67 and 68. The former photo-multiplier receives light containing both the reference Zeeman component and the partially absorbed measuring component; however a filtering cell 66 prevents the latter reaching the other photo-multiplier 68 so that this only receives the reference component. By subtracting the detector outputs the absorption due to Hg in the sample vapour is found. In an embodiment using an Hg <SP>198</SP> source the beam-splitter produces a beam containing only the measuring component and another beam having only the reference component, so cell 66 is not needed. In either case the detectors can act simultaneously or alternately. Sample furnace: The vaporization should occur around 900‹C for Hg in fish, to avoid too much smoke. Fig. 4 shows a stainless steel helical coil 16 which is heated by an induction coil 101. A detachable sample holder 14 is likewise heated and a stream of O 2  carries the vapour through the furnace to tube 86 where the light is passed through it.
Patent GB-1300483-A (GB)
Title: Process for dyeing wool
IPC: D06P1/649
Filed: 1970-08-03
Abstract: 1300483 Dyeing wool CIBA-GEIGY AG 3 Aug 1970 [8 Aug 1969] 37410/70 Heading D1B Wool is dyed by impregnating with an aqueous dyeing preparation which contains (a) a water-soluble reactive dye containing at least one acylamino radical derived from an α, #- unsaturated aliphatic carboxylic acid, or a radical which can be converted thereto by splitting off acid, (b) a compound of formula I: in which D is oxygen or sulphur, and (c) a sulphuric acid ester or phosphoric acid ester, or an alkali metal or ammonium salt thereof, of an addition product of 2 to 10 mols of ethylene oxide to one mole of alkylphenol, the alkyl substituent of which contains a straight or branched chain of 7 to 12 carbon atoms, but which does not contain a non-ionic assistant, at a temperature of 15‹ to 60‹C and subsequently storing the wool for 5 to 60 hours at a temperature of 15‹ to 40‹C with exclusion of air. Preferably 10 to 50% by weight of the total preparation of component (b) and 1 to 5% of (c) are used, the preferred pH range range being pH 4 to 8. The reactive dye may contain an acrylamino group having halogen in the α- or #-position or may contain a propionyl group having halogen in the 1- position and/or 2-position.