baber/WOPTO huggingface dataset:
Patent GB-1205051-A (GB)
Title: Electrostatographic developers
IPC: G03G9/113
Filed: 1967-08-02
Abstract: 1,205,051. Coated particles. RANK XEROX Ltd. 2 Aug., 1967 [10 Aug., 1966], No. 35515/67. Heading B2E. [Also in Divisions C3, G2 and H1] Xerographic carrier particles comprise a core coated with an addition polymer of (a) at least one unsaturated silicon-free compound and (b) at least one silane, silanol or siloxane having attached to a Si atom 1 to 3 hydrolysable groups and an organic group which contains an unsaturated carbon-carbon linkage. The polymers have an average M.Wt. of at least 5,000 and a second order glass transition temperature of at least 55C. The cores may be of NaCl, NH 4 Cl, AlKCl 4 , Rochelle salt, NaNO 3 , KClO 4 , Zr, Si, methyl methacrylate, glass, SiO 2 , flintshot, Fe, steel, ferrite, Ni and/or SiC. The polymer may be a copolymer of (a) vinyl chloride or styrene optionally admixed with vinyl acetate or a methacrylate, or acrylonitrile, and (b) vinyl triethoxysilane or (methacryloxypropyl) trimethoxysilane, although other suitable monomers are listed. Comparative examples using coating of a polycarbonate, vinyl chloride/ vinyl acetate copolymer of a copolymer of styrene and a butyl or methyl methacrylate are also given.
Patent GB-1439420-A (GB)
Title: Apparatus and method for producing asphalt-aggregate compositions
IPC: E01C19/10
Filed: 1974-08-13
Abstract: 1439420 Mixing asphalt aggregate compositions R L MENDENHALL 13 Aug 1974 35597/74 Heading B1C Apparatus for heating and mixing asphaltaggregate compositions comprises an elongate cylindrical rotary container 12 having a plurality of heating tubes 20 which extend along the length of the interior of the container. The tubes 20 which may be e.g. square and/or round receive hot gases from a heating chamber 14 into which burners 15, 17 are directed and exhaust into stack 24. In feed of raw material may be a chute 13 (having a flap 26 to minimise escape of fumes) or screw feeder. Control of the temperature of the mixed product may be effected by control of the burners, by control of the feed rate or by control of the speed of rotation or inclination of the container 12. Asphalt deficiency (the invention is particularly concerned with the use of recycled composition) may be detected by photo electric means (see Division Gl) either in the container 12 or at a subsequent stage in the process and corrected by controlled addition of asphalt. In one embodiment (Fig. 10 not shown) a feed pipe terminating e.g. in a spray nozzle for the addition of metered amounts of a petroleum hydrocarbon to reduce the viscosity of the mix is arranged to penetrate into the interior of the container from the discharge end. In a further embodiment (Fig. 9 not shown) the apparatus is mounted on a wheeled trailer for road transport.
Patent GB-521576-A (GB)
Title: Improvements in production of aliphatic ketone-diarylamine anti-oxidants
IPC: C08K5/16
Filed: 1938-12-08
Abstract: 521,576. Antioxidants for oils and soaps. UNITED STATES RUBBER PRODUCTS, Inc. Dec. 8, 1938, No. 35786. Convention date, Dec. 9, 1937. Drawings to Specification. [Class 91] [Also in Groups IV and V] Aliphatic ketone-diarylamine condensation products, prepared by reacting a diarylamine in liquid form with an aliphatic ketone introduced in vapour form by pressure into the diarylamine at a temperature of 100‹ C.-200‹ C. are used as antioxidants for unsaturated vegetable or other fatty oils, essential oils, petroleum oils and their derivatives including cracked gasolines, and soaps. 0.1 per cent. to 5 per cent. by weight of antioxidant is suitable. Specified ketones employed are acetone, ethyl methyl ketone, diethylketonemesityl oxide, phorone, dipropyl ketone and dibutyl ketone. Specified diarylamines are diphenylamine, N, N<SP>1</SP>-diphenyl p-phenylene diamine, ditolylamine, dixylylamine, phenyl tolylamine, dinaphthylamine and phenyl α or #-naphthylamine.
Patent GB-335447-A (GB)
Title: Improved oil-cooling device for use with electric current transformers
IPC: H01F27/12
Filed: 1929-11-23
Abstract: 335,447. Rothwell & Co., Ltd., J. T., and Yates, G. Nov. 23, 1929. Tanks with radiator elements.-The oil in an electrical transformer tank is cooled by circulating through ducts 4 of sinuous cross-section surrounding tubes 5 through which cooling air &c. flows. The ducts communicate with the tank through headers 2. 3. In a modification, a single header 8, Fig. 4, communicates with rows of ducts 9.
Patent GB-389596-A (GB)
Title: Improvements in and relating to the transport of road vehicles by rail
IPC: B60P3/073
Filed: 1931-12-30
Abstract: 389,596. Lifting weight off vehicle springs. POLLARD T. A. and DYSON & CO., Ltd., R. A., 76, Grafton Street, Liverpool. Dec. 30, 1931, No. 35939. [Class 108 (ii).] A device for taking the weight off the springs of a road vehicle such for instance as that described in Specification 388,168 for transporting milk &c, in bulk, when the vehicle is being transported on a railway wagon, comprises a screw jack 6 rotatable in a nut 9 secured to the chassis member 10 so that it may engage the spring yoke 7. Holes 12 are provided in the jack to receive a tommy-bar. Undesired rotation of the jack may be prevented by a pin passed through one of the holes 12 and tethered by a chain to the vehicle.
Patent GB-851119-A (GB)
Title: Improvements in or relating to the polymerisation of olefines
Inventor: DOST NICOLAAS
IPC: C08F10/00
Filed: 1956-11-23
Abstract: Olefines e.g. ethylene, are polymerized by the low-pressure process with the aid of a Ziegler catalyst and in the presence of a minor proportion relative to the olefine polymerized of a boron halide which may be added to the polymerization zone or to a component supplied to the zone.  The Ziegler catalyst comprises two components, one component being a compound of a metal of Group IVa, Va, VIa or VIII or of Mn and the other component being a reducing agent selected from the metals, alloys, hydrides and organometallic compounds of the metals of group I, II and III, tin and lead or an organo-boron compound.  The A component may be titanium tri- or tetrachloride and the B component may be an aluminium trialkyl or alkyl halide, a Grignard reagent or a magnesium or zinc alkyl.  The preferred boron halide is the trifluoride.  The polymerization may be carried out in the presence of an inert liquid medium such as iso-octane or a light petroleum distillate and the polymerization may be carried out by a batchwise or continuous process.  The function of the boron halide is to control the molecular weight of the polymer. Specifications 799,392, 799,823, 801,031, 803,557, 815,112, 815,113, 815,310, 819,867, 820,263 and 820,264 are referred to.ALSO:A catalyst for the polymerization of olefines comprises a Ziegler catalyst and a minor proportion, relative to the olefin polymerized, of a boron halide. The Ziegler catalyst comprises two components, one being a compound of a metal of Group IVA, VA, VIA or VIII or of Mn and the other being a reducing agent selected from the metals, alloys, hydrides and organometallic compounds of the metals of Group I, II and III, tin and lead or an organo-boron compound.  Components specified are titanium tri- and tetrachlorides, aluminium trialkyls, alkyl aluminium halides, Grignard reagents and magnesium and zinc alkyls. The preferred boron halide is the trifluoride and the polymerization is preferably carried out in an inert liquid medium, e.g. iso-octane or a light petroleum distillate.  Specifications 799,392, 799,823, 801,031, 803,557, 815,112, 815,113, 815,310, 819,867, 820,263 and 820,264 are referred to.
Patent GB-175844-A (GB)
Title: Improvements in or relating to apparatus for carbonating beverages or the like
IPC: B01F3/04
Filed: 1920-12-22
Abstract: 175,844. Wade, H., (Richardson Corporation). Dec. 22, 1920. Dispensing liquids.-In carbonating- machines of the type in which liquid is fed in comparatively large quantities into a carbonating chamber containing a stirring device, water and syrup are delivered to the chamber by means comprising a measuring device which delivers the syrup in quantities bearing a definite proportion to the supply of water. In the form shown, the water is supplied by a pipe E, provided, if necessary, with a pressure-regulating valve D to a pump F, and the syrup enters the pipe E through pipes G, I and a rotary meter H. The pump F delivers the mixture to the carbonating-chamber N and is driven from a shaft K which also drives the meter H through the gear wheels 0, P. A non-return exit valve V is provided.
Patent GB-1474177-A (GB)
Title: Concentration of volatiles-bearing products
IPC: A23L2/10
Filed: 1973-07-30
Abstract: 1474177 Multi-stage evaporation A P V CO Ltd 24 July 1974 [30 July 1973] 36189/73 Heading B1B Volatiles-bearing products e.g. fruit juices are concentrated by low temperature, multistage, multi-effect evaporation with a forward feed of product and vapour so that at least from a given stage of evaporation each subsequent stage is carried out at a lower temperature in which the volatile constituents, removed with the vapour from one or more effects and subsequently condensed and recovered, are combined with the partially concentrated product before a final stage or stages of evaporation at a temperature lower than that at which they were originally distilled off whereby a more highly volatile fraction is removed with the vapour in the final stage or stages of evaporation. The Fig. shows juices fed to the second effect B which is at a lower temperature than first effect A, the water vapour and aroma being fed to the third effect divided into two stages C and D, and the remaining liquid juice fed back to A where it is subjected to the highest temperature and thence to stage C and finally to D where concentration is completed. Volatilerich vapour fed to the third effect is partially condensed in C and D and is passed with uncondensed vapour to recovery unit E. Recovered aroma is pumped from E to mixing chamber F where it is mixed with partially concentrated product from C prior to feeding to final stage D where some volatiles e.g. those in the oil fraction are removed with the vapour.
Patent GB-1025191-A (GB)
Title: Improvements in or relating to the production of composite images
Inventor: RIDER LEONARD FREDERICK
IPC: G03B15/12
Filed: 1961-10-09
Abstract: 1,025,191. Forming composite pictures using camera and projector. RANK ORGANISATION Ltd. Oct. 8, 1962 [Oct. 9,1961],. No. 36241/61. Headings G2A, G2C and G2J. An apparatus for producing in a camera 11 a composite image of a subject 12 and a back ground upon a reflex reflecting screen 13 projected thereon by projector 14, is arranged with the camera, projector and subject on one side of the screen and the projector objective lens 13 is of shorter focal length than the focal length of the camera objective lens preferably between one and ten percent shorter. A semireflecting mirror 17 is used to direct the image form the projector on to the screen 13. Mirror 17 is preferable placed in a black velvet lined casing with suitable apertures, the black velvet serving to absorb unwanted light.
Patent GB-1119206-A (GB)
Title: Improvements in or relating to mine roof supports
Inventor: SEDDON JEFFREY WILLIAM
IPC: E21D23/00
Filed: 1964-09-04
Abstract: 1,119,206. Advancing mine-roof supports. GULLICK, Ltd. 2 Sept., 1965 [4 Sept., 1964], No. 36352/64. Heading E1E. A mine roof support or chock comprises a roof-bar structure 12 or canopy applied to the roof by props 10 on a base 11 extendable by pressure fluid and a piston-and-cylinderdevice 21, 23 so connected to the structure 12 or canopy and to the base 11 that when the device 21, 23 is retracted, the structure 12' or canopy is positively released from the roof by means including a piston-and-cylinder device 16, 17 having means 35 to discharge or receive fluid so that it is made free to move so as not to interfere with the raising of the structure 12 or canopy or becomes inextensible prior to release of the structure 12 or canopy. The piston 18 is connected by a joint 19, 20 to the roof and the means 35 includes a non-return valve. The connection between the device 21, 23 and the base 11 includes a seating 24 for the cylinder 23, the piston 21 being urged upward by a spring 26. The valve is so arranged that the device 21. 23 operates in synchronism with other hydraulic members. '
Patent GB-972493-A (GB)
Title: Improvements in or relating to methods of making reinforced concrete beams
IPC: B28B23/18
Filed: 1960-10-24
Abstract: 972,493. Reinforced concrete structures; clamps. ED. ZUBLIN A.G. Oct. 24, 1960 [Oct. 24, 1959], No. 36354/60. Headings E1V and E2B. A method of making a reinforced concrete beam includes the steps of attaching clamps 1 to the vertical limbs 2 of stirrups forming part of the reinforcement, supporting a cross rod 4 between portions of corresponding clamps on opposite limbs of the same stirrup and mounting a longitudinal reinforcing member 9 on the cross rods. Concrete is then cast round the assembly so formed. As shown the clamp comprises a U-shaped member the limbs of which are provided with openings to receive a short rod 8 between which and the base of the U-shaped member the limb 2 is received. The limb 2 is clamped against the rod 8 by means of a screw 3 which passes through a bore 7 in the base of the U-shaped member. Recesses are provided in the edges of the limbs of the U-shaped member to support the cross rod 4 at right angles to the stirrup limb 2. In a modification a wedge is used to secure the U-shaped member to the stirrup limb 2; the wedge replaces the screw and the rod 8. In a further modification which uses a screw 3 and rod 8, instead of recesses to support the cross rod 4 additional openings are provided in the limbs of the U-shaped member. In another construction, Fig. 3, the U-shaped member is modified in that one of the limbs is bent and extends through an aperture in the other limb and the stirrup limb 2 is clamped between the bent part of the limb and the base of the U by a screw 3 as in some of the previous constructions. The cross rod 4 passes through an aperture in the other limb.
Patent GB-318066-A (GB)
Title: Improvements in closed solid fuel stoves
IPC: F24H1/32
Filed: 1928-12-10
Abstract: 318,066. Bell, J. W. Dec. 10, 1928. Closed solid-fuel stoves; doors; draught, regulating and inducing; boilers, arrangement of.- The stove comprises a fuel magazine 15 above an horizontal grate 18, which extends from the front of the casing but is separated by a space 20 from the rear, a substantially vertical front grate 20a, and baffles forming flues through which the gases pass to the outlet 30. The stove shown comprises water-heating sections 12 which form the flues, the gases being deflected by blades 39 and passing over a diaphragm 40. The front of the magazine is provided with water-sections 17 connected to the sections 12. The fire-door 23 is maintained in the closed position by a downturned lip 27 at the top which engages a groove at the top of the frame, the trunnions 24 on which it turns allowing it to be lifted to disengage the lip from the groove and then to be turned down to the horizontal position. Induced draught is caused -by a fan 31, the switch controlling the motor of which may be thermostatically controlled.
Patent GB-1149737-A (GB)
Title: Steroids related to estrone
IPC: C07J75/00
Filed: 1966-08-15
Abstract: 1,149,737. Steroids related to estrone. MERCK & CO. Inc. 15 Aug., 1966 [18 Aug., 1965], No. 36440/66. Heading C2U. dl - 19 - nor - 4,9,8(14) - androstatriene- 3,17-dione is reacted with anhydrous p-toluenesulphonic acid and isopropenyl acetate to give the novel dl-8(14)-dehydroestrone acetate, this is hydrolysed to give the novel dl-8(14)-dehydroestrone, this is hydrogenated to give dl- 8-isoestrone, this is alkylated to give a C 1-5   alkyl ether and this is oxidized to give a dl- 8 - dehydroestrone C 1-5  alkyl ether, which if desired may be reduced with potassium in liquid ammonia to give a dl-estrone C 1-5  alkyl ether which is readily converted to dl-estrone by known procedures.
Patent GB-1360205-A (GB)
Title: Temperature control apparatus
IPC: G05D23/02
Filed: 1970-07-28
Abstract: 1360205 Temperature responsive actuating elements BRITISH OXYGEN CO Ltd 19 July 1971 [28 July 1970] 36498/70 Heading G1D Apparatus for controlling the temperature of a chamber comprises a first piston 30 operated by a temperature responsive member, and a second piston 26 of smaller cross-sectional area than the first piston and spaced therefrom by an elastomer 32 filling a housing 34, the second piston 26 controlling the introduction or removal of heat into or from the chamber as a consequence of movement of the first piston 30 by the temperature responsive member. As shown, the first piston 30 is connected to an invar rod 36 extending longitudinally of a bronze conduit 38 which is arranged within the chamber in which frozen food packages may be stored and due to the difference in thermal expansion co-efficients of the bronze and invar the piston 30 is moved to allow a valve 16, controlled by the piston 26, to open and supply liquid nitrogen from a container 12 to the bronze conduit 38 via conduits 14, 18 only when the temperature in the chamber is higher than a predetermined value. Such liquid nitrogen is sprayed through apertures 42 in the conduit 38 into the chamber to reduce the temperature of the chamber and cause the piston 30 to actuate the second piston 26 to close the valve 16. The elastomer between the pistons may be silicone rubber and the interior surface of the housing 34 and/ or the surface of the elastomer may be coated with polytetrafluoroethylene.
Patent GB-346333-A (GB)
Title: Improvements in and relating to the manufacture of synthetic resins
IPC: C08G63/46
Filed: 1929-11-29
Abstract: Ester condensation products.-Polyhydric alcohol-polybasic acid condensation products in the fusible state are treated with an acylating agent, which may be the chloride or anhydride of an aliphatic or aromatic acid.  Excess of the acylating agent is removed by distillation under atmospheric or reduced pressure, and the resin is then polymerized.  This process of acylation lowers the rate of polymerization at a fixed temperature, but enables polymerization to be effected at higher temperatures and, therefore, more quickly than usual.  Simple polyhydric alcohol-polybasic acid resins may be treated, and also mixtures of such resins, resinous complexes from two or more acids and two or more alcohols, such resins plasticized with, for example, oleic acid, and any of the above mixed with any natural or synthetic resin.  Specific materials referred to are glycol, glycerol, phthalic, succinic, and citric acids, oleic acid and colophony, acetic anhydride and benzoyl chloride.  Specifications 24254/12, 308,671, 317,225 and 328,190, [all in Class 2 (iii), Dyes &c.], are referred to.
Patent GB-449400-A (GB)
Title: Improvements in apparatus for permanent hair-waving
IPC: C09K5/16
Filed: 1934-12-22
Abstract: 449,400. Hair waving appliances. MURSCH, J., 3, Ryesgade, Copenhagen. Dec. 22, 1934, No. 36792. Convention date, Dec. 23, 1933. [Class 131] In hair-waving appliances of the kind in which the hair is wound in superposed layers on a hollow perforated curler 1 rotatably mounted on a clamp 2, 3 engaging the root of the hair and is surrounded by a packing 18 containing a chemical substance which produces heat when moistened, the packing 18 is carried by a jacket 8, 9 which engages the clamp and tightly encloses the hair and the packing in a steam-tight manner. The sections 8, 9 of the jacket are connected together by a spring hinge 11, are secured in the closed position by catches 17, and are adapted to engage ribs 13, 14 on the clamp 2, 3. The semicircular end walls of the sections 8, 9 are each provided with two cut-away portions adapted to engage respectively around the end of the curler 1 and with the ribs 13, 14. In use, the steam evolved from the packing passes through the hair and escapes from the end of the hollow curler. In a modification, the jacket completely encloses the curler.
Patent GB-1415068-A (GB)
Title: Pipette tip package
IPC: B65D71/70
Filed: 1973-08-03
Abstract: 1415068 Stacked trays MEDICAL LABORATORY AUTOMATION Inc 3 Aug 1973 [9 Aug 1972] 37078/73 Addition to 1350543 Headings B8C and B8P [Also in Division B1] A package of pipette tips comprises a plurality of stacked trays, each tray 12 having a plurality of apertures 20 through which the tips project with ribs 11 on the tips resting on the tray and a wall 13 depending below the bottom of the tips, the or each upper tray resting on a ledge 22 of the wall 13 of the tray beneath with the tips of one tray extending into the tips of the tray beneath. A cover may be put over the top tray and an insert into the base of the bottom tray. The cover and trays are held together by an adhesive tape extending down the sides of the package and optionally across the bottom. On each side of a tray there is a notch to facilitate slitting of the tape or the tape may be weakened to permit removal of the trays from the bottom one-by-one. The package may be inserted in a carton together with sleeves into which separated trays may be inserted. The carton has an opening and slits to receive a grooved element (31) which facilitates the fuelling of used tips off a pipette.
Patent GB-829207-A (GB)
Title: The purification of 4, 4-dihydroxy-diphenylalkanes and cycloalkanes
Filed: 1956-12-05
Abstract: 4,41 - Dihydroxydiphenylalkanes and cycloalkanes are purified by dissolving them in aqueous phenol at elevated temperature, cooling the solution, separating the adducts consisting of the 4,41-dihydroxydiphenylalkane and phenol and isolating the 4,41-dihydroxydiphenylalkane by separating off the phenol by distillation or extraction, e.g. with hot water. The aqueous phenol is preferably phenol saturated with water at room temperature, i.e. 76% phenol, and may be obtained by adding water to the phenol contained in the reaction product when the dihydroxy-diphenylalkane is prepared from a carbonyl compound and excess phenol.  When the extracted mixture is cooled the aqueous layer containing resinous and coloured impurities is removed from the organic layer containing an equimolecular mixture of phenol and the bis-phenol from which the bis-phenol may be obtained as a residue.  The bis-phenols are sufficiently pure for use in the manufacture of polyesters.  The examples describe the preparation of 2,2-(4,41-dihydroxy-diphenyl)-propane, 2,2 - (4,41 - dihydroxydiphenyl) - pentane and 1,1 - (4,41 - dihydroxydiphenyl) - cyclohexane from excess phenol and the appropriate ketone in the presence of an acidic catalyst and their subsequent purification by the preferred method described above. Specification 772,627 is referred to.
Patent GB-358365-A (GB)
Title: Improvements relating to casting moulds for use in the manufacture of cast iron socket pipes by centrifugal casting
IPC: G02B23/18
Filed: 1930-12-10
Abstract: 358,365. Casting-machines. KRUPP AKT.-GES., F., Essen, Germany. Dec. 10, 1930, No. 37300. Convention date, Dec. 13, 1929. [Class 83 (i).] A casting mould for use in the manufacture of cast-iron socket pipes by the centrifugal casting process is formed by shaping it by pressing or forging in a die from a rolled, drawn, or hollow forged caststeel pipe. The socket portion C of the mould may be formed separately and connected to the pipe portion B by screwing, shrinking, or welding. Specifications 197,177 and 287,317, [both in Class 83 (i), Casting &c. metals], are referred to.
Patent GB-1358805-A (GB)
Title: Lockers
IPC: E06B5/00
Filed: 1972-04-17
Abstract: 1358805 Cabinets HERMAN MILLER Inc 17 April 1972 [2 June 1971] 37499/73 Divided out of 1358804 Heading A4B A locker with doors 70 hinged on a vertical axis adjacent the side walls 20 includes upper and lower cross-pieces 60 engaged in elongate apertures in the side walls 20, upper and lower hinge parts 50 each comprise a platform 51 having channel walls 52 with lips 53 which have a snap engagement on a cross-piece 60, the platform 51 being further provided with a hinge pin 54 for engagement in an aperture 75 in a door 70 and with a resilient catch 55 which has a releasable snap engagement with a hook part 76 projecting rearwardly from the door.