baber/WOPTO huggingface dataset:
Patent GB-1405642-A (GB)
Title: Machine for wrapping an endless core in tape material
IPC: B44C1/04
Filed: 1972-10-26
Abstract: 1405642 Covering cores by winding ZAGORSKY FILIAL NAUCHNO-ISSLEDOVATELSKOGO INSTITUTA REZINOVOI PROMYSHLENNOSTI 26 Oct 1972 49339/72 Heading B8G An apparatus for winding tape 66, Fig. 1, around an endless band 70 comprises spaced pulleys 4, 5 around which the band passes; means 58 driving one of the pulleys 4 and means 30 biasing the pulley 5 away from the pulley 4, a rotatable gear-wheel 9, Figs. 1 and 2, having a radial slot 10 so that the band 70 can be positioned at the centre of the gear-wheel; a holder 11 for a reel 12 of wrapping material mounted on the gear-wheel 9; a slidable carriage 8 having an axle 13 holding the gear-wheel 9, said axle having a radial slot 14 that can be aligned with the slot 10; and at least one pair of gears 15, 15 imparting rotation to the gearwheel 9 and spaced apart from each other so that the distance between the points of tangency of pitch circles thereof is larger than the length of arc l of the slot 10 in the gear-wheel 9. To assist in centring the band 70 with the axis of rotation of the gear-wheel 9 four rollers 17, 17, 18, 18, Fig. 3 are carried by the axle 13. Two rollers 17, 17 are horizontal and two rollers 18, 18 are vertical. These rollers in combination define an opening whose geometrical dimensions correspond to the cross-sectional profile of the band 70. One roller 18 is temporarily removable to allow the band 70 to be inserted. The pulleys around which the band 70 passes are movable such that one run of the endless band 70 can be centred with the axis of the gear-wheel 9. The supply reel may be braked to tension the tape material to be wound on to the band 70. Automatic means may stop the apparatus after the band 70 has made a full revolution on the supporting pulleys.
Patent GB-1473689-A (GB)
Title: Radiation responsive apparatus
IPC: H05G1/64
Filed: 1974-11-20
Abstract: 1473689 Thermoluminescence MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 20 Nov 1974 50372/74 Heading C4S [Also in Division H4] A thermoluminescent panel on which is projected an X-ray image and which is scanned by an infra-red laser beam to produce visible or U.V. light (see Division H4), may be formed for example by spraying with a mixture of thermoluminescent CaSO 4  powder mixed with siloxane resin and diluted with toluene on to a quartz glass or plastic substrate to produce a 50 Ám layer, which is dried and heated. Other panel thicknesses are specified, a thinner layer giving better resolution but less sensitivity, as are particle sizes, emission intensities at different X-ray energy intensities and many other thermoluminescent materials.
Patent GB-1437104-A (GB)
Title: Method and apparatus for testing transparent containers
IPC: G01N33/00
Filed: 1973-10-31
Abstract: 1437104 Optical testing of transparent containers for imperfections E REMY 31 Oct 1973 [31 Oct 1972] 50727/73 Heading G1A An apparatus for examining transparent containers for imperfections or impurities comprises a light source 3, lens 4 producing a beam converging on points 5, from which it diverges inside container 2, light scattered from impurities 12, 17 being measured by apparatus 10 with photo-cells 11, 11', or picture scanning tube 14, in which anode 15 is scanned by electron beam 16. The limiting rays 6, 6' of the beam are tangential to the bevelled shoulders 8. An image of the scattered light may be formed by a single lens, as 13 or 9, or individual lens 9 may be used for each photo-cell 11. The support 1 may be a conveyer belt with which the scanning is synchronized, and there may be 4 scanning tubes around the positioned container, symmetrically placed with respect to its axis. All or each tube is/are connected to a monitor with a picture tube and to an impulse evaluating logic circuit comprising an adjustable impulse height discriminator, an impulse width discriminator, an integrator for the number and size of scattering objects and a discriminator giving a signal when the integrated signal exceeds a threshold value. The first and second derivatives may also be used for discrimination. A lag element is used to suppress an impulse jump due to the passing rim of the bottle. Said discriminator signal may operate an alarm or a switch deflecting faulty containers from the conveyer belt. The source and the measuring apparatus may be limited to the same narrow spectrum. Source 3 may be a laser, giving visible or invisible light in the transmission range of the container material, and operated by impulses linked with the line scanning frequency and the frequency of feeding the containers. In the embodiment of Fig. 3 (not shown) an elongated tubular lamp slit and cylindrical lens converge the light through a line, parallel to the motion of the bottles, instead of a point. Extraneous light can be excluded by masking.
Patent GB-1069739-A (GB)
Title: Electrophotographic compositions,recording elements and process
Inventor: SANDERS FREDERICK WILLIAM
IPC: G03G5/09
Filed: 1964-12-18
Abstract: 1,069,739. Electrophotography. MEAD CORPORATION. Dec. 18, 1964, No. 51560/64. Heading H1K. An aqueous electrophotographic composition comprises an aqueous suspension of an inorganic photoconductive pigment, an insulating binder and 0À25 to 10 wt. per cent shellac. The use of shellac is said to be efficacious in three respects: (a) dispersing the photoconductive pigment; (b) stabilizing the binder composition; and (c) photo-sensitizing the photoconductive pigments, all of which are exemplified with comparative examples. Dewaxed orange or bleached shellac may be used. The photoconductive pigment may be the oxides, sulphides, selenides, tellurides and iodides of Cd, Hg, Sb, Bi, Tl, Mo, Al, Pb, or Zn whilst As 2 S 3 , PbCrO 4 , and Cd arsenide may also be used, the preferred pigments being ZnO and ZnS. The binder may be a copolymer or terpolymer of styrene, butadiene, polyester, vinyl acetate, acrylic ester, vinyl stearate or acrylonitrile with unsaturated carboxylic acids such as itaconic, maleic, acrylic, crotonic, phthalic, aconitic or citraconic. The compositions are preferably made up in aqueous solution in the presence of a volatile base e.g. NH 3 , pyridine, ethylamine, methylamine or morpholine. The polymeric binder is preferably made up as a latex and then added to photoconductive pigment. The base member may be paper sized with polyvinyl alcohol and starch hardened with a urea-formaldehyde condensation product. Alternatively the base member may be metal, plastics or textile.
Patent GB-1087833-A (GB)
Title: Magnetic memory systems
IPC: G11C11/06
Filed: 1964-12-21
Abstract: 1,087,833. Circuits employing bi-stable magnetic elements. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 21, 1964 [Dec. 30, 1963], No. 51759/64. Heading H3B. Pulses induced electrostatically in sense wires by drive current pulses in drive wires in a magnetic memory are suppressed by having two sense lines coupled to each magnetic element and connecting the two sense lines to separate inputs of a differential amplifier. In the memory shown in Fig. 3, each magnetic storage element is threaded by two sense lines 110, 112 each sense line being divided into two parallel paths 110<SP>1</SP>, 110<SP>11</SP> and 112<SP>1</SP>, 112<SP>11</SP>. The sense lines are connected to the input terminals 122, 126, 134, 136 of differential sense amplifier 118 and to unipolar bit drivers 114, 116. In order to write a bit into the store a word drive conductor such as 106 is energized coincidentally with bit driver 114 or 116 dependent on the direction of the bit current through the element 102 on wire 112<SP>1</SP>. Simultaneously, with the pulse on wire 112<SP>1</SP> is an identical bit drive pulse on wire 112<SP>11</SP> which pulses are applied to terminals 134, 136 of the sense amplifier 118 arranged to invert one and add it to the other. Since both pulses are equal in amplitude and polarity they are cancelled. In order to interrogate element 102, a current is passed through word drive conductor 106 which if a " 1 " is stored induces a voltage in path 112<SP>1</SP> of sense conductor 112 and in path 110<SP>1</SP> of conductor 110 due to the change in state of the element. These voltages will be equal in amplitude but the voltage induced will be of one polarity on one side of the element and on an opposite polarity on the other side, Fig. 1 (not shown), so that these signals will be added by amplifier 118 and an output obtained at 138. There are also induced in conductors 112<SP>1</SP> and 110<SP>1</SP> electrostatic noise pulses due to the capacitative coupling between the word drive lines 106 and the sense conductors which pulses are equal in both. polarity and amplitude,Fig. 1 (not shown). The noise voltages are effectively cancelled in the sense amplifier. Information read out during the destructive read-out process is restored by a further write operation. Impedances 120, 124, 130, 132 prevent any signal and noise pulses generated in either the upper or lower half of array 100 from affecting the other half. The arrangement of Fig. 4 utilizes magnetic elements having a planar shape and utilizing bipolar. bit sources. In order to reduce the delay time difference of the induced pulses reaching the differential amplifier along the two sense conductors the conductors are folded back on each other, Fig. 2 (not shown).
Patent GB-1359566-A (GB)
Title: Herbicidal arsenical compositions
IPC: A01N57/12
Filed: 1972-11-09
Abstract: 1359566 Herbicidal arsenical compositions WITCO CHEMICAL CORP 9 Nov 1972 [9 Nov 1971] 51791/72 Heading A5E A herbicidal concentrate comprises an aqueous solution which comprises from 25% to 60% by weight based on the weight of the concentrate of methylarsonic acid, dimethylarsinic acid and/or a water-soluble ammonium, alkali metal or monoethanolamine salt thereof; from 1% to 4.5% by weight based on the weight of the concentrate of a coupler which is a butoxypolyethoxyethanol monophosphate or a water-soluble ammonium, alkali metal, alkaline earth metal or monoethanolamine salt thereof, the monophosphate having the general formula:- wherein the value of n averages from one to three or which is a mixture thereof with a diester of the monophosphate, the diester being present in an amount of not more than 15% by weight of the monophosphate; and from 1% to 6% by weight based on the weight of the concentrate of a surfactant which is a C 10 -C 15  aliphatic alcohol ethoxylated with from 5 to 12 moles of ethylene oxide or a phosphate ester or sulphate ester thereof, a C 5 -C 10  alkyl phenol ethoxylated with from 7 to 10 moles of ethylene oxide or a phosphate ester or sulphate ester thereof; the concentrate comprising the coupler and surfactant in a total combined amount of not more than 7.5% by weight of the concentrate.
Patent GB-1099698-A (GB)
Title: Electric arc furnace
IPC: H05B7/156
Filed: 1965-12-09
Abstract: 1,099,698. Mounting and adjusting electrodes in arc furnaces. McGRAW-EDISON CO. Dec. 9, 1965 [May 17, 1965], No. 52296/65. Heading H5H. [Also in Divisions F2 and G3] In an arc furnace 10 the electrode 46 is automatically positioned by an reversible hydraulic motor 76 in response to current and voltage variations as detected by a control circuit 101, the motor 76 being coupled to an hydraulic pump 98 having an adjustable tilt plate 104 which determines the speed and direction of rotation of the motor. The adjustment of tilt plate 104 is controlled by a pair of pistons 121 actuated by a servo valve 99 associated with a torque motor 140 having windings L1, L2 connected to receive an output from a voltage divider R2, R5, R6, R4 to which is applied; (a) a signal which is derived by way of a transformer 158, a potentiometer R1 and a transformer 180 and which is proportional to the electrode current; (b) a signal, derived from a potentiometer R3 and a transformer 182, which is proportional to arc voltage; and (c) a signal from the coils L4, L5 of a transducer 100 which is representative of the position of the tilt plate 104. When the arc conditions are as desired the tilt plate 104 is in a neutral position and there is no output from the pump 98 so that the motor 76 and the electrode 46 remain at rest. If the arc gap increases arc voltage will increase and arc current decrease and the voltages across R4 and R2 will increase and decrease respectively so that the voltage across winding L2 of torque motor 140 will increase and the voltage across winding L1 will decrease whereby the torque motor will actuate servo valve 99 to move the tilt plate 104 into the position shown. The pump 98 will then operate to cause motor 76 to rotate in the forward direction and lower the electrode 46; as the arc voltage and current return to their desired values, the feedback signal from the transducer 100 causes the voltage across winding 12 to decrease and the voltage across L1 to increase, whereby the servo valve 99 is actuated so that the tilt plate 104 tends to return to its neutral position, until the system is in equilibrium. If the arc gap decreases the positioning arrangement operates correspondingly to restore normal operating conditions. In a modification (Fig. 5, not shown), the pump 98 has a fixed tilt plate and control of the motor is effected by way of a servo valve connected in the fluid lines between pump and motor.
Patent GB-1124788-A (GB)
Title: Improvements in and relating to electric light fittings
Inventor: BULL WILLIAM
IPC: F21V25/12
Filed: 1964-12-24
Abstract: 1,124,788. Lamp-holders. WALSALL CONDUITS Ltd. 4 Jan., 1966 [24 Dec., 1964], No. 52403/64. Heading H2E. [Also in Division F4] A lamp assembly 10, Fig. 2, which houses a fluorescent tube 16 is supported on a ceiling C, Fig. 5, by means of a hook-and-eye connection 25, 60 and a carrier 41, the assembly and the carrier being provided with complementary parts 35, 45 of a plug - and - socket connector through which power is supplied to the tube and the hook-and-eye connection being unreleasable whilst the plug and socket are in engagement. The assembly is secured to the carrier by a screw 39 which is held captive in a lug 38 and engages a threaded opening 50 in the carrier, and the lug also carries a pin 40 which enters a passage 56 and displaces a spring-loaded plunger 57 carrying a locking lever 59. This lever co-operates with a switch 51 controlled by a handle 53 and prevents the switch from being closed unless the lamp assembly is in position. When the handle is moved to the prevents removal of the assembly. closed" position it overlies the lug 38 and
Patent GB-1456251-A (GB)
Title: Hydrolysis of polyurethanes
IPC: C08G18/82
Filed: 1973-11-14
Abstract: 1456251 Hydrolysing polyurethane foam FORD MOTOR CO Ltd 14 Nov 1973 [18 Dec 1972] 52794/73 Heading C3R Polyurethane foam is hydrolysed in a continuous process which comprises feeding a stream of particulate polyurethane foam into a first end of an enclosed tubular hydrolysis zone, maintained at a temperature of 425‹ to 750‹ F. and provided with successive obstructions for obstructing the movement of the particulate foam therethrough, introducing a water vapourcontaining hydrolysis gas into the first end of the hydrolysis zone under sufficient pressure to cause the gas to sweep through the zone and pass into an enclosed gas/liquid separation zone which has a cross-sectional area greater than the tubular hydrolysis zone and is in fluid communication therewith and removing gaseous effluent (comprising water vapour and diamines) from the upper half of the separation zone whilst removing liquid hydrolysis product from the lower half thereof. The obstructions in the tubular hydrolysis zone preferably comprise a series of grids having apertures of crosssectional area which vary inversely with their distance from the first end of the zone. The hydrolysis gas comprises water vapour optionally mixed with a diluent gas such as air or nitrogen. The gaseous effluent is cooled and recovered to give a solution of diamines in water, the diamines corresponding to the diisocyanate from which the foam is produced. Separation of the diamines from water may take place by distillation. The liquid hydrolysis product comprises the polyether or polyester from which the foam is produced.
Patent GB-1373081-A (GB)
Title: Colourant compositions for keratinous fibres
IPC: A61K/
Filed: 1970-11-06
Abstract: 1373081 Dyestuff for the hair UNILEVER Ltd 1 Nov 1971 [6 Nov 1970] 52910/70 Heading D1B A composition for dyeing keratinous fibres and producing a high volume of foam in a specified test comprises a solution of an anionic-cationic detergent complex and a basic dyestuff. The anionic component of the detergent complex may be sodium or potassium soaps, alkyl or alkaryl sulphates or sulphonates or tricarboxylic acid detergents, specific examples of which are given, and the cationic component may comprise C 8 -C 8  alkyltrimethylammonium salt,-a diquaternary amine salt, an ethoxylated quaternary ammonium salt or an alkylpyridinium salt. The molar ratio of anionic to cationic detergent in the complex is from 65:35 to 35:65. The basic dyestuff may be of the thiazole, acridine, polymethine, azine, triphenylmethane, oxazine, thiazine or anthraquinone type. The composition may also contain isopropanol and a nonionic surfactant.
Patent GB-1212310-A (GB)
Title: Improvements in railway vehicle resilient wheels
IPC: F16D65/12
Filed: 1969-10-30
Abstract: 1,212,310. Resilient wheel. SVENSKA AKTIEBOLAGET BROMSREGULATOR. 30 Oct., 1969 [20 Nov., 1968], No. 53154/69. Heading B7C. A resilient railway wheel comprises a hub, a wheel rim portion 10 rigid with a rim carrying flange 4 which flange is clamped between circumferentially arranged axially spaced groups of rubber blocks 3, 5, a hub flange 1 rigid with the hub, a clamping ring 7 detachably secured by bolts 8, 9 to the hub flange 1 which in use compresses the blocks 3, 5 in the axial direction, a brake ring 2 releasably secured between the hub flange 1 and the blocks 3 and a second brake ring 6 releasably secured between the clamping ring 7 and the rubber blocks 5, the arrangement being such that the brake rings can bg removed without dismounting the wheel from its axle.
Patent GB-1243008-A (GB)
Title: Improvements in or relating to conveyors
Inventor: ACKROYD RONALD TUNSTALL
IPC: B65G15/60
Filed: 1967-11-23
Abstract: 1,243,008. Endless belt conveyers, air-cushion supported. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 18 Nov., 1966 [23 Nov., 1967], No. 53448/67. Heading B8A. The upper run of a conveyer belt 6 is supported above a plate 1 by an air cushion effect. The belt includes endless supporting members 7 of V cross-section which are held in spaced relation by laterally extending portions 8. The drive and return rollers 3 and the plate 1 are formed with V-shaped recesses in which the members 7 bear. The portions 8 have detachable feet (Fig. 3, not shown) which are formed with detachable labyrinth seals (11) for engaging the member 1. This arrangement tends to prevent interchange of air between the compartments defined by the members 7 and portions 8. Suction is applied via conduits 13, 14, 15. In the modification shown in Figs. 5 and 8, side seal portions 32 of the belt co-operate with the edges of outer side frame panels 28 in order to maintain pressure. A plurality of belts in series may be connected by rotary drive members 23, the drive being transmitted by the interengagement of transversely extending slats 21. The latter may enable the belts to be used as elevators.
Patent GB-1568913-A (GB)
Title: Device for the supply of fluid to the root system of a tree a bush or other type of plant
IPC: A01G25/06
Filed: 1977-12-22
Abstract: The device comprises an injection tube (1) which is inserted into the ground to distribute the liquid at a given depth. Similar devices are known, which, however, have inter alia the disadvantage that said liquid rises back up along the tube and disperses on the surface of the ground. The illustrated device, however, is designed in such a manner that this does not happen because, once the injection tube (1) has been installed in the ground, the liquid emerges through openings (15, 16, 17, 18, 19) which do not come into contact with the surrounding ground since they are provided on a part (5) of polygonal shape with a radial dimension which is smaller in relation to the circumference (23) of the tube. There thus come to be formed on the injection tube (1) shoulder-type surfaces or flanges (24, 25) which prevent the liquid rising back up along the tube and dispersing on the surface of the ground. <IMAGE>
Patent GB-1500676-A (GB)
Title: Production of cresols
IPC: C07C39/07
Filed: 1976-12-22
Abstract: 1500676 Production of cresols CONTINENTAL OIL CO 22 Dec 1976 [26 March 1976] 53559/76 Heading C2C The invention relates to a process for the conversion of xylenols to cresols comprising contacting the xylenols with phenol in the presence of MgO promoted by WO 3 , UO 3  or a mixture thereof, in vapour phase at temperatures of from 340‹ to 550‹ C. and pressures up to 1000 p.s.i.g. The reaction is preferably carried out in a continuous flow reactor. After the completion of reaction the catalyst may be regenerated by contacting it with air and steam until no exotherm is observed.
Patent GB-1281348-A (GB)
Title: Dynamo electric machine rotor end bells
Inventor: HARRISON NORWOOD LESLIE
IPC: H02K3/51
Filed: 1968-11-12
Abstract: 1281348 Securing coils for dynamo-electric machines ENGLISH ELECTRIC CO Ltd 31 Oct 1969 [12 Nov 1968] 53615/68 Heading H2A A cylindrical support 12 for the rotor end windings 34 in a dynamo-electric machine is formed at least partly of carbon fibre reinforced plastics material. The end windings support may include two cylinders 11, 12, and in one embodiment the outer cylinder 12 comprises plastics material reinforced with carbon fibres wound circumferentially, and the inner cylinder 11 comprises either plastics material reinforced with carbon or glass fibres extending parallel to the axis, or non-magnetic steel. In another embodiment both cylinders comprise helically wound carbon fibres with their helixes in opposite senses. Alternatively there may be a single cylinder with the fibres wound in a double helix. To form the fibre-reinforced cylinders fibres may be wound and subsequently impregnated with resin, or sheets of partially-cured fibrereinforced resin may be pressed to the desired shape and then fully cured.  The cylinders 11, 12 are a press fit on an annular surface 32 and insulation 36 is interposed between the inner cylinder 11 and the end windings 34. To allow movement of the end windings relative to the support, the cylinder 11 may be lined with P.T.F.E. or with alternate layers of rubber and metal (Fig. 2, not shown). The supporting arrangement includes a glass or carbon fibre reinforced plastics end cover 13 which may be formed integrally with the cylinder 12 and have a conical or dome shape.
Patent GB-1201175-A (GB)
Title: Modified hydrocarbon oils as tackifiers for elastomeric polymers
IPC: C08L23/16
Filed: 1967-11-24
Abstract: 1,201,175. Modified oils as tackifiers. HOOKER CHEMICAL CORP. 24 Nov., 1967 [30 Nov., 1966], No. 53667/67. Heading C3P. [Also in Divisions C4-C5] A composition comprises a synthetic rubber and a tackifying agent which is an alkylated or acylated or halogenated hydrocarbon oil having at least 10 carbon atoms. The agent may be an oil that has been reacted with a halogenated oil that has been modified into an alkylating agent. Synthetic rubbers include butyl, nitrile, GRS, EP and EPD rubbers.