baber/WOPTO huggingface dataset:
Patent GB-1500467-A (GB)
Title: Electrophoretic display device
IPC: G02F1/167
Filed: 1976-07-14
Abstract: 1500467 Matrix and alphanumeric displays THOMSON-CSF 14 July 1976 [17 July 1975] 29407/76 Heading G5C [Also in Division G2] An electrophoretic display device comprises two parallel facing substrates with electrodes on their adjacent faces, at least the substrate and electrode towards the incident light being transparent, enclosing a resistive fluid together with a thin permeable contrasting diaphragm which moves to stick to one or other electrode under a potential gradient between the elec. trodes. When on the substrate facing the incident light the diaphragm displays an aspect contrasting with the fluid. The diaphragm, preferably matching the fluid in density, may be rigid, e.g. glass (Figs. 1a, 1b, not shown), and movable bodily, or may be flexible and anchored round its periphery, e.g. on the mid plane of the cell (Fig. 3, not shown). Between an array of electrodes 13, 14 on one substrate 10 towards the incident light 5, facing a single electrode or similar array on the other substrate 20, a flexible diaphragm may carry almost free flaps 33 which deflect through apertures 70 in an insulating plate and stick to the electrode 20 until a reverse field releases them, or free diaphragm segments 34 may move bodily within apertures in insulated plate 71. Woven diaphragms may be used but their adhesion in the absence of field is less: the driving charge on the diaphragm may be increased by absorption of ions.
Patent GB-484163-A (GB)
Title: Improvements relating to pipe connections
IPC: F16L13/08
Filed: 1936-10-29
Abstract: 484,163. Pipe connections. DONALD, P. G., and ASSOCIATED BUILDERS' MERCHANTS, Ltd. Oct. 29, 1936, No. 29416. [Class 99 (i)] A copper or like sleeve for sweated joints has a central internal shoulder 3 which may be formed by rolling or pressing an external groove. A number of sleeves may be sweated together to form a reducing fitting. Reference has been directed by the Comptroller to Specification 451,738.
Patent GB-445865-A (GB)
Title: Improvements in or relating to the manufacture of coloured bitumen emulsions
IPC: C08L95/00
Filed: 1934-10-15
Abstract: Coloured bituminous emulsions for road-surfacing purposes are made by dispersing a colouring-agent in water and incorporating with this dispersion either bitumen or a bituminous emulsion. The preferred emulsifying agent for both the bitumen and the colouring-agent consists of alkali, resin pitch or resin, and bone fat.  According to an example, 20--30 gms. of metallic oxides or of colours having a clay base are dispersed in 60--90 gms. of water containing the said dispersing-agent and 300--400 gms. of an emulsion containing 50--60 per cent of bitumen are added with prolonged stirring.  Fillers, such as lamp black, pumice, infusorial earth, &c. may be added.
Patent GB-373046-A (GB)
Title: Improvements in or relating to lanterns for displaying numbers or signs
IPC: G09F13/06
Filed: 1931-10-24
Abstract: 373,046. Wall lamps. MAAS, B., 14, Vonder-Heydt.-Strasse, Berlin. Oct. 24, 1931, No. 29543. [Class 75 (iv).] A wall lamp, particularly for use over a street door, comprises two concave reflectors f arranged vertically within a casing open at the bottom, cut out stencils n being arranged in front of the reflectors, and a source of light g being arranged at the adjacent edges of the reflectors to illuminate both the stencils and the space beneath the lamp. The source of light g, preferably a tubular electric lamp bulb, is located within a removable casing c in which an aperture o is provided for the illumination of the reflectors. Eyelets are provided on the face m of the casing for the suspension of the lamp.
Patent GB-205699-A (GB)
Title: Improvements in or relating to garment racks or the like
IPC: A47B61/00
Filed: 1922-10-30
Abstract: 205,699. Bouchon, M. Oct. 30, 1922. Garment racks.-A sliding garment rack for wardrobes, trunks, &c. comprises a fixed rail 2 upon which slides a rail 3 of U-section, the rails being united by a bolt 1 which slides in a longitudinal slot 4 in the fixed rail 2. the rail 3 being capable of swinging at right-angles to the rail 2 when the bolt 1 has reached the outer end of the slot 4. Cheeks 5 at each end of the rail 3 support a tube 6 on which the garment hangers are placed. In a modification, the fixed rail 2 comprises a strip of metal spaced from the wardrobe &c. by a wood distance-piece. In a further modification, both rails are of channel section.
Patent GB-864818-A (GB)
Title: Improvements in and relating to sheet material coated with pressure-sensitive adhesive
Inventor: DOW JAMES
IPC: C09J7/50
Filed: 1958-09-16
Abstract: 864,818. Pressure-sensitive adhesive materials. SMITH & NEPHEW Ltd., T. J. Sept. 4, 1959 [Sept. 16, 1958], No. 29596/58. Class 140. A pressure-sensitive adhesive sheet material comprises a sheet support of polymeric plastic material, a tie-coat comprising a graft copolymer of alkyl methacrylate and natural rubber, and a coating of pressure-sensitive adhesive composition thereon containing as its essential ingredients an elastomer and a resin. The graft copolymer may contain from 30 to 50% by weight of polymerized alkyl methacrylate and may be a copolymer of methyl methacrylate and natural rubber. The tie coat may also contain a resin which when the sheet material is regenerated cellulose may be a watersoluble polymer, e.g. polyvinyl pyrrolidone. The tie-coat may be omitted from pressuresensitive adhesive sheet material comprising a sheet support composed of hydrophobic polymeric plastic material and a pressure-sensitive adhesive composition containing as its essential ingredients an elastomer and a resin in which said elastomer comprises a graft copolymer of alkyl methacrylate and natural resin. Examples of polymeric plastic materials are plasticized or unplasticized polyvinyl chloride, polyesters of terephthalic acid with dihydric alcohols such as ethylene glycol, and polyethylene whose surface has been treated to increase surface polarity by one of the following methods :-electrostatic discharge, surface halogenation, ultra-violet light or passage over a hot flame.
Patent GB-1440002-A (GB)
Title: Apparatus for controlling the movement of the needle valve of a fuel injector
IPC: F02M51/06
Filed: 1973-06-21
Abstract: 1440002 Valves SOC DES PROCEDES MODERNES D'INJECTION SOPROMI 21 June 1973 [23 June 1972] 29597/73 Heading F2V [Also in Division F1] The chamber 35 containing the upper portion of a fuel injector needle valve or its control rod 10 is connected to high and low pressure fluid conduits 11 and 12, respectively, under the control of an electromagnetically operated valve 6. High pressure fluid acts in the chamber 35 through passages 18, 20, 23, 31, 34 and chambers 19, 22, 24, 32 when the solenoid 4 is de-energized. When the solenoid 4 is energized the valve surface 26 seats on the plunger 27 to close the high pressure flow path and the low pressure flow path provided by the passages 13, 14, 36 and chambers 25, 30, extending to the chamber 32, is opened by the sharp valve edge 7 being unseated from the flat surface 8. An adjustable needle valve 33 controls the outlet 37 from the chamber 32 to regulate the rate of opening of the injector needle valve when the solenoid 4 is energized. The piston 29 within the valve 6 reduces the fluid capacity of the flow paths.
Patent GB-631781-A (GB)
Title: Improvements in floats for aircraft
IPC: B64C35/00
Filed: 1947-11-06
Abstract: 631,781. Hooks. SAUNDERS-ROE, Ltd., DOWTY EQUIPMENT, Ltd., and NICHOLL, E. J. Nov. 6, 1947, No. 29602. [Class 89 (ii)] [Also in Group XXXIII] A lock for securing an aircraft retractable stabilising float is spring loaded to provide automatic locking and is released by fluid pressure. The lock comprises a casing 61 to which is pivoted, at 62, a pair of hooks 63. At its upper end each hook has a projection 64 against which presses a pair of co-axial compression springs 65 to hold the hooks in the normal position shown in Fig. 17. As the float rises a bar 66 attached thereto forces the hooks apart, and becomes locked between them when the hooks snap back under the action of the springs 65. Each pair of springs 65 is disposed in a cylinder 73 and is acted on by a piston 75 and to release the lock fluid pressure is applied to the rear of the piston 75 through passages 174. Pivoted to each hook 63 is an arm 68 provided with a finger 72 and acted on by a torsion spring 71. When the bar 66 rises the arms 68 are rocked upwards about the pivots 67 and the fingers 72 actuate microswitches (not shown) which control an indicator system and pressure sequence valves. In an alternative arrangement, Fig. 18 (not shown), a superimposed pair of identical claw-type hooks are pivoted at 62 to partially surround the bar 66, pivoted plates of substantially rectangular outline being arranged to actuate the micro-switches. Specification 528,007, [Group XXXIII], is referred to.
Patent GB-342667-A (GB)
Title: The manufacture of dyestuffs of the anthraquinone series
IPC: C09B1/34
Filed: 1929-09-30
Abstract: Anthraquinone dyes are obtained by condensing 1-amino-4 halogen-anthraquinone-2-sulphonic acids with aromatic diamines (excepting o-diamines and p-phenylene diamine and its nuclear substitution products) in which one hydrogen atom of one amino group may be replaced by an alkyl, aralkyl or hydroaromatic hydrocarbon residue, in an aqueous solution, in presence of an acid-binding-agent, advantageously with the addition of a copper catalyst.  The products dye bluish shades.  According to examples, the sodium salt of 1-amino-4-bromo-anthraquinone-2-sulphonic acid is condensed with m-phenylene diamine, benzidine, 1 : 5-naphthylene diamine, p-thioaniline, ethyl-p-phenylenediamine and the following compounds are also specified: diaminodiaryl ethers, m-tolidine, 1 : 8-naphthylenediamine, and cyclohexyl-p-phenylenediamine, and other homologues and substitution products of the above types of compound. Specifications 10378/14, 7861/15 and 331,952, [all in Class 2 (iii), Dyes &c.], are referred to.  N-Cycloaryl aromatic diamines are obtained by condensing cyclohexylamine or a substitution-product thereof with a nitro derivative of the aromatic series containing a reactive halogen atom, and reducing the nitro compound thus formed. Specification 340,495 is referred to.
Patent GB-723121-A (GB)
Title: Improvements relating to fume removal plant for brass and like foundries
IPC: B22D45/00
Filed: 1953-03-16
Abstract: 723,121. Dust confining and removing in industrial processes. GEE, W. L., and WIGLEY, F. T. March 16, 1953. [Dec. 19, 1951] No. 29714/51. Class 8 (2). A brass foundry fume removal plant comprises a suction duct 12, Fig. 3, extending longitudinally above and parallel to the spilling hearth 11 and has on at least one of its sides a plurality of independently operated flaps 14 of width substantially equal to that of the moulds a and pivoted outwardly as to open upwardly and outwardly and thereby provide access of the fumes from the moulds a to the duct 12, and to a suction branch 13 thereof. Both sides of the duct 12 are externally reinforced by I-sectioned bars 12d, Fig. 5, having lugs 12e serving as pivotal bearings for bars 16 passing through tubular beads 14a at the edges of the flaps 14, and similarly pivoted flaps 15 are linked to the flaps 14 by rods 18 ; the flaps 14, 15 of each set being opened manually by handles 17. The duct 12 is supported by standards 19 and may have one end provided with a pair of flaps 14, 15 at the skimming end of the hearth. As many ducts 12 may be provided as there are hearths 11 leading to a common suction chamber 13a and fan 20.
Patent GB-602663-A (GB)
Title: Improvements in or relating to adjustable spanners
IPC: B25B13/16
Filed: 1945-11-08
Abstract: 602,663. Wrenches. ABINGDON KING DICK, Ltd., and BRAMLEY, T. B. Nov. 8, 1945, No. 29771. [Class 61 (iii)] A spanner of the kind comprising a body a and jaw b integral therewith and a shank d carrying the movable jaw c and slidable in a longitudinal slot in the body by means of a nut engaging a screwthreaded extension of the shank has the adjusting nut e of spherical shape housed in a circular opening f in the spanner body. As shown in Fig. 4, the nut may be formed in two parts e, l, the part e having a peripheral ridge h with knurled edge j and recessed at the end to receive the rim m of the part l which has a depressionk housing a short compression spring or spring washer urging the part l against the end of the opening f.
Patent GB-836702-A (GB)
Title: Metallic dispersions and organometallic catalysts prepared therefrom
Inventor: PATTON ROLAND GRANVILLE
IPC: B22F9/06
Filed: 1955-10-19
Abstract: Alkali metal dispersions of particle size 2.5-5m , particularly sodium, are prepared in an inert liquid, particularly xylene, by subjecting the metal to ultrasonic waves while immersed in the inert liquid at a temperature not less than the melting point of the metal. The frequency of the ultrasonic waves is generally between 200 and 500 kilocycles per second.  The dispersions are specially suitable for the preparation of organo-metallic catalysts which are used in the polymerization of olefines.  The catalysts may be prepared by reacting the metallic dispersion with an alkyl halide, e.g. amyl chloride, in a solvent such as pentane, thereby producing the metal-alkyl compound.ALSO:Alkali metal dispersions of particle size 2.5-5, particularly sodium are prepared in an inert liquid, particularly xylene, by p  subjecting the metal to ultrasonic waves while immersed in the inert liquid at a temperature not less than the melting-point of the metal.  The frequency of the ultrasonic waves is generally between 200 and 500 kilocycles per second.  The dispersions are specially suitable for the preparation of organometallic catalysts which are used in the polymerization of olefines, more particularly butadiene, to form elastomeric polymers.  The catalysts may be prepared by reacting the metallic dispersion with an alkyl halide, e.g. amyl chloride, in a solvent such as pentane, thereby producing the metal-alkyl compound.  If desired, a portion thereof can be reacted with an aliphatic alcohol, more especially a secondary alcohol such as isopropyl alcohol, to form the metal alkoxide and then treated with an olefine such as propylene. However, the preparation of polymerization catalysts from the metallic dispersions of the invention is not limited to the method described since the dispersions can be used in any of the known methods for preparing organometallic catalysts for use in the bulk or gas phase polymerization of butadiene or other olefines either alone or with other compounds copolymerizable therewith.
Patent GB-648070-A (GB)
Title: Process of producing phosphate-coating solutions
IPC: C23C22/08
Filed: 1948-11-16
Abstract: In making phosphate-containing solutions for phosphatizing metals, an aqueous suspension of super- or triple-superphosphate, which has been prepared by reacting crude phosphate with sulphuric acid, is reacted with a solution of a metal sulphate, e.g. sulphates of iron, manganese and zinc, and the insoluble constituents are separated from the resulting suspension containing the metal phosphate in solution. The insoluble constituents may be washed and the wash liquor used for making fresh aqueous suspensions of reactant.  The metal sulphate may be partially replaced by sulphuric acid.ALSO:Phosphatising solutions are made (see Group III), containing e.g. iron, manganese or zinc phosphate to which sulphuric acid or, where a nitrate is used as an accelerator, nitric acid may be added during their preparation.  In one example, zinc nitrate is added to the zinc phosphate solution in such quantity that the ratio P2O5 : NO3 is 1 : 1.  In another example, sodium chlorate is dissolved in the zinc phosphate solution, acidified with sulphuric acid, in such quantity that the ratio P2O5 : chlorate is 1 : 0.4.
Patent GB-1300889-A (GB)
Title: Hydrogenation of carboxylic acids
IPC: C07C29/149
Filed: 1971-06-25
Abstract: 1300889 Glycols; hydrogenation of carboxylic acids CELANESE CORP 25 June 1971 [17 Aug 1970] 29851/71 Heading C2C Organic acids in the form of aqueous solutions of their alkali metal salts, buffered to pH 6À0- 7À0, are reduced to the corresponding alcohols by catalytic hydrogenation at superatmospheric pressure.
Patent GB-988547-A (GB)
Title: Electro-magnetic relay
IPC: H01H50/64
Filed: 1962-08-03
Abstract: 988,547. Electromagnetic relays. INTERNATIONAL BUSINESS MACHINES CORPORATION. Aug. 3, 1962 [Aug. 11, 1961], No. 29858/62. Heading H2B. In an electromagnetic relay having an armature pivoted at one of its ends a movable contact is arranged substantially parallel to the armature and is movable about its ends remote from the armature pivot. As shown (Fig. 1) the electromagnet 10, 11 is adjustably mounted by screws 13 on a frame 12 and its armature 14 is arranged to pivot between one end of a limb of the core 11 and a shoulder 15 on the frame 12. An adjustable spring 16 biases the armature to the unattracted position shown so that an insulating actuator 26 engages an adjustable rubber stop 35. A plurality of contact members such as 20 are each supported at 24 in a conductive insert 25 and the limbs 22, 23 are biased apart to engage respective fixed contacts 28, 29. In the position shown, the actuator 26 holds the contact limb 22 away from the contact 28 and permits engagement of contacts 23, 29. On energization of the relay the armature is attracted to the core 11 and retained against an insulating shim 32. During the armature movement there is some lost motion between face 35 of the actuator 26 and the contact limb 23 which is subsequently moved away from contact 29 as limb 22 is permitted to engage contact 28. Members 25, 29, 28, 31 may form plug connectors. As shown in Fig. 2, the contact travel y can be set by the position of the actuator 26 relative to the pivot points 15, 24 without changing the armature travel x.
Patent GB-1153335-A (GB)
Title: Cis-1,4-Dienes
IPC: C07C2/04
Filed: 1966-07-04
Abstract: 1,153,335. Cis-1,4-dienes. B. F. GOODRICH CO. 4 July, 1966 [6 July, 1965], No. 29865/66. Heading C5E. Cis-1,4-dienes are prepared by reacting a C 4-6  conjugated diene with ethylene in the presence of (1) a catalyst prepared by reacting together a compound of iron and a reducing agent which is zinc or a metal of Group I A , II A  or III A  or a hydride, alkyl or alkyl halide derivative thereof, in the presence of a conjugated diene, and (2) an organic compound which is an electron donor containing an element of Group V A  or VI A  but free of metals of Group I A , II A  or III A . The periodic Table used is that appearing in " Handbook of Chemistry and Physics " (40th Edition). Compound (2) may be present during the preparation of the catalyst or may be added afterwards. Many catalyst components and electron donors are specified, the following being used in the specific examples: iron compounds: ferrous acetylacetonate, ferrous oxalate, ferrous sulphate and ferric chloride; reducing agents: triisobutylaluminium, triisobutylborane, zinc diethyl and ethyl magnesium bromide; dienes: butadiene, isoprene and piperylene; and electron donors : triethylamine, triethylenediamine, benzonitrile, morpholine, triphenylstibine and diphenylsulphone.
Patent GB-1386495-A (GB)
Title: Reinforcement of concrete or cement by means of glass fibres
IPC: E04C5/07
Filed: 1972-06-26
Abstract: 1386495 Furane resin coated glass fibres A C I TECHNICAL CENTRE PTY Ltd 26 June 1972 [29 June 1971] 29890/72 Heading B2E [Also in Division C1] Glass fibres used in reinforcing concrete, are coated with or embedded in a cured furane resin. The furane resin may be an unmodified, epoxy-modified, or aldehyde-modified polymer of furfuryl alcohol with furfuryl alcohol, furfuraldehyde or formaldehyde. In Examples: (1) fibres are drawn through a resin bath and cured. in a stream of hot air; (2) fibres are coated then wound onto a frame and oven cured; (3) fibre rovings are coated and looped over two spaced, parallel bars which are twisted so that when the resin is cured a spatulate ended reinforcing rod is produced; (4) uncoated rovings are looped as in (3) and coated in a cylindrical mould; (5) cut rovings are placed in a channel and covered with resin; (7) fibreglass mesh is impregnated with resin; and (8) fibres are drawn through a resin bath, then wound on a frame to produce an impregnated mesh when the resin is cured.
Patent GB-659045-A (GB)
Title: Improvements in or relating to mining soluble salts
IPC: E21B43/28
Filed: 1949-11-22
Abstract: 659,045. Hydraulic mining. DIAMOND ALKALI CO. Nov. 22, 1949, No. 29925. Convention date, Feb. 24. [Class 68 (i)] A method of mining a soluble salt in a subterranean deposit consists of boring through the overlying strata and the salt deposit and passing downward into the bore two preferably concentric tubes, one reaching to the bottom of the bore and the other to the top of the deposit so that a solvent may enter the bottom of the bore and in passing downwards dissolves the salt to enlarge the bore, the brine being removed at the top of the cavity so formed. After enlarging the cavity to a certain extent, the pipes are re-arranged so that the solvent enters the cavity at a point below the upper surface of the deposit, preferably nearly at the bottom of the cavity, rises vertically, and at the top moves radially outwards to descend in dissolving contact with the salt. The brine is withdrawn at the bottom of the cavity by a pipe projecting below the inlet level of the solvent.
Patent GB-174429-A (GB)
Title: Improvements relating to radio-goniometry
IPC: G01S1/02
Filed: 1920-10-22
Abstract: 174,429. Abraham, H., and Philippson, M. Oct. 22, 1920. Directive signalling.-Apparatus for visually indicating radio-goniometric readings comprises a system of frame aerials C, D, a high-frequency amplifier A, and valve detector B, the rectified current being sent through a milli-ammeter M which is provided with means for adjusting the pointer to zero when no reception is taking place. This means mav comprise an adjustable spring, or an auxiliary battery circuit P with an adjustable resistance R to vary the neutralizing current through the ammeter. In a modification, a thermic ammeter is employed, the detecting valve being dispensed with.