baber/WOPTO huggingface dataset:
Patent GB-411198-A (GB)
Title: Improvements in the manufacture and production of high quality lubricating oils
IPC: C10M143/06
Filed: 1932-12-23
Abstract: Lubricating-oil is made by adding polymerized isobutylene to a hydrocarbon oil and treating the mixture with a condensing agent preferably of the Friedel-Crafts type.  Hydrocarbon oils specified are mineral and tar oils, or cracking or destructive hydrogenation products of such oils or of fatty oils, paraffin wax or of coal.  Gas oil, middle oil or a lubricating oil distillate is mixed with a small amount of highly polymerized isobutylene, and the mixture is stirred and heated at 40 to 80 DEG  C. with aluminium chloride.  The condensing agent is separated from the resulting oil by settling or washing with water, and the oil is then treated with a bleaching earth and finally is filtered.  The hydrocarbon oil may be treated with the condensing agent alone, and then mixed with a solution of polymerized isobutylene in the same or a different hydrocarbon oil and the mixture heated to complete condensation.  For example, an oil obtained by splitting off hydrogen chloride from chlorinated paraffin wax or by cracking hard or soft paraffin wax is heated at 60 DEG  C. with iron, tin or zinc chloride.  A solution of polymerized isobutylene in lubricating oil or cracked gas oil is added and the mixture heated at 80 DEG  C, after which the sludge is allowed to settle and the lubricating oil is decanted.  A diluent such as ligroin may be used.  The product may be mixed with ordinary lubricating oils to improve the temperature-viscosity curve.  The cracked products of paraffin wax &c. may be replaced by olefines obtained by dehydration of the alcohol mixture formed by destructive hydrogenation of soya bean oil.  The lubricating oils thus produced may be mixed with substances which lower the setting point such as are described in Specification 349,071, or with condensation products of paraffins, rubber, or diolefines such as styrene to improve the viscosity.
Patent GB-1198213-A (GB)
Title: Improvements in and relating to Fume- or Air-Extractor Units for Ventilation and Like Purposes
Inventor: GALE MICHAEL CHARLES
IPC: F24F7/02
Filed: 1968-07-31
Abstract: 1,198,213. Ventilators; lamps combined with ventilating apparatus. SOUTHBOURNE SHEET METAL CO. Ltd. 1 July, 1969 [31 July, 1968], No. 36547/68. Headings F4R and F4V. An air or fume extraction unit comprises a sheet metal tube 1 mounted in a roof or ceiling 14, and housing a fan 5 and supporting at its lower end a lighting fitting which includes a reflector 9, an electric bulb or fluorescent tube and a shade or glass cover 10. In the form shown, the tube is mounted in a roof and projects through a false ceiling 20 which it helps to support. A perforated metal plate, grid or wire mesh 21 may extend over the tube 1 to join the edges of a cowl 13. A weather guard 16 is sealed to the tube 1 by a strip 19.
Patent GB-780234-A (GB)
Title: Nozzles for rocket motors
Inventor: WALKLEY BERNARD OWEN
IPC: F02K9/97
Filed: 1954-12-17
Abstract: 780,234. Jet propulsion nozzles. IMPERIAL CHEMICAL INDUSTRIES, Ltd. Dec. 12, 1955 [Dec. 17, 1954], No. 36552/54. Class 110 (3). A propulsion nozzle for a rocket motor constructed from a lightweight metal not sufficiently resistant to normal working temperatures, has its internal surface coated with a phenolformaldehyde resin. The lightweight metal may be aluminium, magnesium, or aluminiummagnesium based alloys. The resin may contain a mineral filler in finely divided form, e.g. finely divided silica. The method of applying the resin to the nozzle is described.
Patent GB-1343105-A (GB)
Title: Printing apparatsu
IPC: B41J2/26
Filed: 1972-08-04
Abstract: 1343105 Selective mosaic printer RENA BUROMASCHINENFABRIK GmbH & CO 4 Aug 1972 [5 Aug 1971] 36567/72 Heading B6F A needle 8 of a mosaic printer has a thickened portion 20 inserted into the hole 15 of an armature 16. The rim 17 of the hole is flanged over a tapered part 18 of the needle so that the end 14 is firmly pressed against the floor of the hole 15. As an alternative (Fig. 3), the needle is integrally formed with the armature. As a further alternative (Fig. 4) the needle has the thickened portion flattened and provided with a hole 26 which is used to pivot the needle to a swinging armature (22, Fig. 5).
Patent GB-922982-A (GB)
Title: Load cell
IPC: G01L1/22
Filed: 1961-10-12
Abstract: 922,982. Measuring electrically. CARL SCHENCK MASCHINENFABRIK G.m.b.H. Oct. 12, 1961 [Oct. 14, 1960], No. 36705/61. Class 40 (1). A load cell or pressure gauge comprises a circular plate 1 peripherally supported by a rigid annular portion 2, the thickness of the plate varying as a function of distance from the centre in such a way that, when a force P is applied to a central hub 3 of the plate, the sign of strain in the plate changes abruptly at a predetermined distance from the centre. Thus, as shown, the direction of strain changes at the thinnest part of the plate, which is approximately half the radius in distance from the centre, so that, of strain gauges 7 . . . 10 fixed to the underside of the plate, gauges 7 and 10 are compressed while gauges 8 and 9 are stretched; the magnitude of the strain is the same in all the gauges, which are connected in a Wheatstone bridge arrangement for measurement purposes. The strain gauges are protected by a cover 5 bolted to the plate. To maintain the pressure in the space 4 between plate and cover equal to ambient pressure, the cover may be fitted with a flexible diaphragm 11, the chamber 12 between the diaphragm and the rest of the cover being open to the atmosphere at 13. When the diaphragm is not provided, the cover may have a central stop member to limit the deflection of the plate. For measuring tractive forces, the exterior of the cover is provided with a central hub. In a modification, the strain gauges are replaced by an inductance coil mounted on the cover which co-operates with a feeler on the plate to detect the degree of deflection of the plate.
Patent GB-1146749-A (GB)
Title: A stabilised composition of quinonedihalimine compound
IPC: D06P1/00
Filed: 1966-08-17
Abstract: 1,146,749. Stabilization of benzo-quinone diimines. SUMIJOMO CHEMICAL CO. Ltd. 17 Aug., 1966 [19 Aug., 1965 (2)], No. 36913/66. Heading C2C. [Also in Division D1] Compounds of formula wherein X is Cl or Br and the nucleus A may be substituted by one or more Cl, Br, Me or -OMe substituents are stabilized by the addition of at least one alkali metal phosphate or acetate as buffer agent. The compounds may be obtained by the oxidation of the corresponding p-phenylene diamine with sodium or calcium hypochlorite.
Patent GB-819147-A (GB)
Title: Irradiation of polymeric materials
IPC: C08F2/54
Filed: 1956-12-04
Abstract: A polymeric material prepared by polymerizing aliphatic hydrocarbons such as ethylene and propylene in the presence of a catalyst obtained by mixing a reducing metal compound such as an aluminium trialkyl or dialkyl aluminium halide with a reducible compound of a metal selected from Groups IVa, Va, VIa or VIII of the Periodic Table, such as titanium tetrachloride, is subjected to gamma rays in an oxygen-containing gas, such as air, to reduce its molecular weight.ALSO:A polymeric material prepared by polymerizing aliphatic hydrocarbons such as ethylene and propylene in the presence of a catalyst obtained by mixing a reducing metal compound such as an aluminium trialkyl or dialkyl aluminium halide with a reducible compound of a metal selected from Groups IVa, Va, VIa or VIII of the Periodic Table, such as titanium tetrachloride, is subjected to gamma rays in an oxygen-containing gas, such as air, to reduce its molecular weight.
Patent GB-861905-A (GB)
Title: Organic copolymers
Inventor: AIRS RAYMOND SPENCER
IPC: C08F8/00
Filed: 1959-11-02
Abstract: A urea-purified olefine containing six or more carbon atoms is copolymerized with an unsaturated polymerizable compound containing an alcoholic -OH group, a -CN group, a -CONR1R2 group or a -NR1R2 group, where R1 and R2 are hydrogen or a hydrocarbyl radical.  In a modification the polymerizable compound may not contain the desired group or groups but these are introduced after copolymerization, e.g. by hydrolysis, oxidation, reduction, or amination.  The olefine is obtained from the thermal or catalytic cracking of hydrocarbon feedstock or from the cracking of the raffinate obtained from the selective solvent extraction of heavy catalytically-cracked cycle oil.  The olefine may be purified in accordance with the processes described in Specifications 657,496, 671,456, 671,457, 671,458, 681,246, and 725,598.  Suitable polymerizable compounds containing the desired groups are acrylonitrile, acrylamide, methacrylonitrile, alpha - ethyl acrylonitrile, alpha-propyl acrylonitrile, 2-butyl-2-hexenenitrile, 2 - propyl - 2 - pentenenitrile, 2 - chloroethyl-2-butenenitrile, 2-ethyl-3-chloro-2-butenenitrile, 2-isopropyl-3-bromo-2-pentenenitrile, and alpha - isopropyl - beta - cyclo - hexyl - acrylonitrile, and the corresponding amides. Suitable polymerizable compounds which can be after-treated after polymerization, e.g. by hydrolysis or alcoholysis, are vinyl chloride, acetate, propionate, butyrate, or benzoate.  The copolymerization, e.g. in bulk, is preferably effected in the presence of conventional peroxy compounds.  The copolymers are suitable as additives to lubricating oils.ALSO:Lubricating oils, in particular mineral or synthetic lubricating oils, comprise as a detergency additive a copolymer of a urea-purified olefine containing six or more carbon atoms with an unsaturated polymerizable compound containing an alcoholic -OH group, a -CN group, a -CONR1R2 group or a -NR1R2 group, where R1 and R2 are hydrogen or a hydrocarbyl radical (see Group IV (a)).  The amount of the additive is generally between 0.1 and 10% by weight of the whole composition.  The polymerizable compound may be acrylonitrile, acrylamide, methacrylamide, alpha-ethyl acrylonitrile, alpha-propyl acrylonitrile, 2 - butyl - 2 - hexenenitrile, 2 - propyl-2-pentenenitrile, 2-chloroethyl 2-butene nitrile, 2-ethyl 3-chloro 2-butene-nitrile, 2-isopropyl-3-bromo - 2 - pentene nitrile, or alpha - isopropyl-beta - cyclo - hexyl - acrylonitrile, or corresponding amides.  In the examples the copolymers are added to mineral oils which are tested for cleansing action against mineral oils containing no additives.  Specifications 657,496, 671,456, 671,457, 671,458, 681,246 and 725,598 are referred to.
Patent GB-619635-A (GB)
Title: Improvements in or relating to apparatus for testing ignition systems for internal combustion engines
IPC: F02P17/02
Filed: 1946-12-18
Abstract: 619,635. Testing ignition. ENGLISH ELECTRIC CO., Ltd., and HEYES, J. B. Dec. 18, 1946, No. 37263. [Class 7 (iv)] In apparatus for testing the ignition systems of internal-combustion engines in which signals obtained from the low-tension circuits of the ignition systems are displayed on a cathode-ray oscillograph, impulses for synchronizing a time base of the oscillograph with the engine firing cycle are taken to the apparatus through a condenser and a transformer, which does not pass the higher frequency components of the impulse, so that attenuation, which would otherwise occur when long leads are employed, is reduced. A split brass sleeve 8, Fig. 1, is passed round the lead to one of the sparking plugs 1 ... 6 and all six sparking plug leads are enclosed in a "screen" 7. A "screened" connection 9 from the brass sleeve 8 is led to one side of an earthed primary winding of a transformer 10. The earthed secondary winding of the transformer 10 is connected to the primary of a trigger circuit transformer 12 as described in Specification 563,502. In an equivalent circuit, Fig. 4, a condenser 13, which is representative of the capacity between the brass sleeve 8, Fig. 1, and the sparking plug lead, is in series with a condenser 14 which is the capacity comprised between the brass sleeve 8 and "screen" in addition to the capacity of the "screened connection 9, Fig. 1. A potential divider is formed by connecting the primary winding of the transformer 10, Fig. 1, in parallel with the condenser 14. Condensers 17, 18, Fig. 4, respectively represent the capacity of the primary winding and the connection from the secondary to the trigger circuit transformer 12, Fig. 1, the latter capacity including the secondary winding of the transformer 10.
Patent GB-523034-A (GB)
Title: Improvements in or relating to electric elevator control systems
IPC: B66B1/08
Filed: 1938-12-22
Abstract: 523,034. Master control of A.C. motors. WESTINGHOUSE ELECTRIC & MANUFACTURING CO. Dec. 22, 1938, No. 37338. Convention date, Dec. 23, 1937. [Class 38 (iii)] [Also in Group XXXV] An electric elevator control system comprises a motor H driving a car 10, the speed of the car being controlled by an eddy current brake B controlled by the output of an auxiliary speeddetermining generator S. A stopping brake 17 of the electromagnetic type may be provided. Movement of car switch CS to its high-speed position energizes up-contactor coil U or downcontactor coil D and conditioning relay M if the gate and door contacts 47, 48 are closed. Relay M connects the constant-speed motor 41 to drive the regulating generator 36, the regulating field RF2 of which is connected to generator S. The hoisting motor H starts and rotor resistances are cut out gradually by time delay contactors. During such high-speed operation brake B is deenergized, its constant field stator winding BF4 and its regulating stator winding BF5 being disconnected by relay P. When the car is to be stopped switch CS is moved back one notch to de-energize P and connect the eddy current brake fields BF4, BF5. Field BF5 is supplied from generator 36 to obtain a constant car speed, say 130 feet per minute. The constant field RF1 of generator 36 is supplied through part of resistance rll and is opposed by the regulating field RF2 energized in accordance with speed by auxiliary generator S. A third field RF6 connected in series with the armature 36 may be provided. Field BF5 opposes or assists BF4 according as the car speed varies from the required speed. Energization of coil P also effects energization of limit relay coil T to reinsert the rotor resistances of the motor H. With full load in the lift car the insertion of these resistors may be arranged to bring the car to the required speed without use of the brake B, the fields BF4, BF5 of which are then equally and oppositely energized. When the car is to be stopped the switch CS is moved back to notch 50 and the whole of resistance rll is inserted in the circuit of field RF1 when the brake B causes decrease of the car speed to say 30 feet per minute. The torque output of the motor increases with falling speed and a balance may be arranged to occur at 30 feet per minute. The lift is stopped by centreing switch CS so that the system is de-energized and brake 17 is applied.
Patent GB-1185766-A (GB)
Title: Improvements in Pipe Connectors
Inventor: BOURGOIN JEAN
IPC: F16L23/22
Filed: 1968-08-06
Abstract: 1,185,766. Pipe joints. EMERJY S.A. 6 Aug., 1968, No. 37405/68. Heading F2G. A connector for joining a pipe 2 to a piece of apparatus 5, e.g. a pump, or to a collar on another pipe comprises an externally tapered elastic packing ring 1 having an inwardly projecting rib 13 on which the end of the pipe seats, the assembly being clamped by a conical ring 3 secured by bolts 4. The packing has circular grooves (14, 15) in its inner circumference and at its end face (see Fig. 1, not shown). The element 5 may be a ring joining two pipes using a clamp and packing on each one.
Patent GB-1158435-A (GB)
Title: Improvements in and relating to a Two Position Retaining Device
Inventor: MELSHER FRANCIS GEORGE
IPC: B62B1/12
Filed: 1966-08-20
Abstract: 1,158,435. Shopping trolley. PATON, CALVERT & CO. Ltd. 21 Nov., 1967 [20 Aug., 1966], No. 37423/66. Heading B7B. [Also in Division E2] A two-position handle retaining device comprises a biased lever 17 locatable in a guide 11 with two lateral engagement means 19, 20 outwardly disposed in opposite directions and longitudinally spaced apart in opposite directions from a pivot 16 of the lever, and a double engagement member 15 connectable to the handle 13 and slidable in the guide for movement longitudinally in respect of the lever with the double engagement member being locatable on opposite sides of the pivot for alternative cooperative engagement with respect to the engagement means, said lever having a lever release means 22 associated therewith. In the construction shown which is a handle assembly for a shopping trolley the guide is a tube of substantially square cross-section formed by bending a sheet metal strip and brazing the edges together; the guide has a cap 14 at its top through which the handle passes and the double engagement member is made of plastics material and is a substantially U-shape in cross-section and fits slidably and non-rotatably in the guide 11. The member 15 is provided on opposite sides with castellations which are respectively engageable with the lateral engagement means 19 and 20 of the lever which are also castellations. The means 22 is a plunger slidably carried by the cap.
Patent GB-1534376-A (GB)
Title: Low-pressure mercury vapour discharge lamp
IPC: H01J61/54
Filed: 1977-09-09
Abstract: 1534376 Mercury vapour lamps PHILIPS GLOEILAMPENFABRIEKEN NV 9 Sept 1977 [14 Sept 1976] 37726/77 Heading H1D A low pressure mercury vapour lamp comprises a glass tube 1 coated internally with a light-transmissive conductive coating and a luminescent layer, the conductive coating not being connected to an electrode and consisting of at least two parts 4, 5 having a sheetresistivity of 400 to 4000 #/square and connected together by a resistive conductor 7 so that the total resistance of the conductive coating 4, 5 and conductor 7 is between 5000 and 500,000 #. The connecting conductor 7 may be axial as shown, or helical, and it prevents premature greying of the tube 1.
Patent GB-1468570-A (GB)
Title: Valves
IPC: F16K47/00
Filed: 1974-08-29
Abstract: 1468570 Valves CATERPILLAR TRACTOR CO 29 Aug 1974 [4 Sept 1973] 37856/74 Heading F2V The closure member 21 of a relief valve is integral with a damping piston 26 defining a chamber 28 having restricted communication with outlet 13 via the clearance between the piston 26 and the bore 16. The end of the closure member opposite to the piston is provided with an enlarged head 27 keeping the member aligned in the bore. The head is provided with grooves 29 to allow unrestricted flow from inlet to outlet as soon as the valve is opened.
Patent GB-523467-A (GB)
Title: Improvements in or relating to vapour phase bleaching
IPC: D06L3/08
Filed: 1938-12-30
Abstract: 523,467. Bleaching. IMPERIAL CHEMICAL INDUSTRIES, Ltd. Dec. 30, 1938, No. 37916. Convention date, Dec. 31, 1937. [Class 15 (ii)] Coloured textile materials or fabrics are bleached by exposure to the vapour of tertiary butyl hypochlorite. In an example tertiary butyl hypochlorite is vaporized and carried by a current of air through dry cotton goods, after which it is condensed and returned to the vaporizer. Linen, wool and silk may be similarly treated.
Patent GB-1466049-A (GB)
Title: Fatty foodstuff with browning properties
IPC: A23L13/30
Filed: 1975-09-16
Abstract: 1466049 Fatty foodstuff UNILEVER Ltd 16 Sept 1975 [18 Sept 1974] 3806/75 Heading C5C [Also in Division A2] A fatty foodstuff for frying or making gravy comprises a fat, phosphatide, proteinaceous material (e.g. whey powder and/or milk powder) and an amount of ammonium salt (e.g. ammonium adipate, chloride or phosphate) sufficient to improve the browning properties of the foodstuff. The fat may be a liquid oil, e.g. olive, sunflower, maize, wheatgerm or safflower oil, or a solid fat, e.g. hardened palm, coconut or palm kernel oil or animal oils. Citrates, citric acid and calcium lactate or glutamate may also be incorporated in the foodstuff.
Patent GB-1149745-A (GB)
Title: Production of 1,3-diene copolymers containing chlorine
Inventor: SLIWKA ARTUR
IPC: C08F214/14
Filed: 1966-08-26
Abstract: 1,149,745. Copolymers. BADISCHE ANILIN- & SODA-FABRIK A.G. 26 Aug., 1966 [28 Aug. 1965], No. 38301/66. Heading C3P. Copolymers containing chlorine may be prepared by copolymerizing a 1,3-diene with 2- chloroprene under conventional polymerization conditions. The diene may be butadiene or isoprene, and other monoolefinically unsaturated compounds, e.g. vinyl esters, ethers and ketones, unsaturated acids and esters, amides, nitriles and anhydrides thereof, and vinyl aromatic and heterocyclic compounds, may also be copolymerized. Polymerization may be effected in the presence of Ziegler catalysts, peroxides and azo compounds, redox systems, transition metal chelates and mixtures of cobalt and nickel carbonyls with aluminium halides and complexing agents or alkyl aluminium compounds; in organic liquid media or in aqueous emulsion or suspension in the presence of conventional emulsifiers and suspending agents. Extensive lists of comonomers, catalysts and conventional media and agents are given and examples describe the copolymerization of (1) butadiene and (2) isoprene with 2-chloropropene in n-hexane and paraffin oil in the presence of cobalt acetylacetonate and diethyl aluminium chloride, of (3) butadiene and 2-chloropropene in aqueous dispersion in the presence of a sodium paraffin sulphonate and gold acetylacetonate, and of (4) butadiene, 2-chloropropene, styrene and acrylonitrile in aqueous dispersion in the presence of a sodium paraffin sulphonate and potassium persulphate.
Patent GB-862592-A (GB)
Title: Improvements in spindle driving means in textile spinning and like machines
Inventor: FOSTER JOHN RAYMOND
IPC: D01H1/241
Filed: 1957-12-10
Abstract: 862,592. Drive for spinning spindles. T.M.M. (RESEARCH) Ltd. March 6, 1959 [Dec. 10, 1957], No. 38402/57. Class 120(2) In a spindle-driving arrangement in a spinning &c. machine, to permit the drive to be reversed without having to adjust the jockey-pulley, the spindles at each side of the frame derive their motion from separate longitudinal driving-shafts e.g. 14, each pair of adjacent spindles 10, 11 being driven by a belt 23 passing around two guide pulleys 19, 20 separated by a distance different from that of the corresponding spindles, such that the belt follows a path to and from the spindles which provides a 90 degrees arc of contact in each case. The belt is tensioned by a jockey-pulley 22 set askew in a bracket 161 and the driving pulley is wide enough to take the forward and return runs of the belt. Specification 723,470 is referred to.
Patent GB-324493-A (GB)
Title: Improvements in or relating to sound reproducing or transmitting instruments
IPC: H04R7/14
Filed: 1928-12-31
Abstract: 324,493. Brown, S. G. Dec. 31, 1928. Diaphragms.-A sound reproducing or transmitting device has a large diameter, circular, conical diaphragm with a flare or bell-shaped mouth. The flare A may extend over the greater length of the cone, Fig. 1, or may be short, Fig. 4. The flare may be formed from a cone, the excess material being taken up by the ridges a which ridges or creases may be formed by moulding, either with or without cutting along the line a. The diaphragm may also be formed from sections which are joined together by suitable upturned flanges on the sections. The cone is flexibly mounted by material c to a frame D and is actuated axially from its apex.