baber/WOPTO huggingface dataset:
Patent GB-317231-A (GB)
Title: Improvements in and relating to therapeutical lamps
IPC: A61N5/06
Filed: 1928-08-17
Abstract: 317,231. Croad, A. K., (Hanovia Chemical & Manufacturing Co.). Aug. 17, 1928. Light, treating diseases with.-The generally parabolically shaped reflector of a therapeutic lamp is formed with a series of bands 32, 34 - - 42 presenting, from the outer edge, faces which are disposed at progressively and predetermined decreasing angles to planes at right-angles to the reflector axis, these angular bands being con. nected by cylindrical bands 33 decreasing in the same direction in width. The angular bands are arranged at 45 and approximately the following angles: 41 42<1>, 38 30'. 35 3<1>, 30 45<1>, 27 59<1>, 23 42', 19 41<1>, 14 32<1>, 8 21<1>. The top of the reflector is bolted as at 46 to a dome 48 and has a cylindrically flanged opening 43 extending into the dome. Ventilating openings such as reversed louvre's 52, 53 are provided in the dome. Specification 112,320, [Class 75 (ii), Lamp chimneys &c.], is referred to.
Patent GB-486510-A (GB)
Title: Process for the manufacture of zinc sulphide containing pigments
IPC: C09C1/06
Filed: 1936-08-31
Abstract: In the manufacture of zinc sulphide pigments, such as lithopone and pure zinc sulphide, by precipitating the crude pigment from aqueous solutions and subjecting the suspension so obtained to heat treatment at a temperature of 250-370 DEG  C. under pressure in the presence of liquid water, the content of crude pigment in the suspension is enriched to at least 300 grms. per litre and it may be up to 600 grms. per litre prior to the heating step. Enrichment of the suspension may be effected by partial evaporation thereof, by removing part of the liquid after settling, by addition of dry crude pigment, or by filtering off the crude pigment and suspending it in the desired quantity of liquid.  In an example relating to the treatment of lithopone, the enriched suspension is heated under pressure in a system of coils through which the slurry is continuously passed. Specifications 445,587 and 445,588 are referred to.
Patent GB-185329-A (GB)
Title: Improvements in or relating to the manufacture of bi-metallic wire
IPC: B23K20/00
Filed: 1921-09-07
Abstract: 185,329. Martin, E. Sept. 7, 1921. Wire.-Tubular bi-metal wires are obtained from tubular bi-metal blooms consisting of a tubular iron or steel body coated, inside and out, with copper, brass or the like by drawing without the use of a mandrel or core. A wire of this character can be drawn further than a plain steel wire
Patent GB-1336765-A (GB)
Title: Two-track overhead conveyor system
IPC: B61B10/02
Filed: 1971-04-19
Abstract: 1336765 Conveyers A DEMA A PULCINI and E ROSSOTTI 19 April 1971 [4 Aug 1970] 23881/71 Heading B7L A conveyer comprises an upper track formed of rails 2, 2<SP>1</SP> for supporting a continuously driven chain and a lower track formed of rails 4, 4<SP>1</SP> for supporting trolleys 5A, 5B connected in pairs by bars 6 from which loads are suspended, the chain having depending dogs 12 each with an inclined surface 13 for contacting a similarly inclined surface 17 on a lever 20 pivoted to trolley 5A for driving the latter, the inclination of the surfaces 13, 17 being such that the resultant driving force urges the lever end provided with the surface 17 upwards and the line of said force passes below the pivot axis 19 of the lever 20. A further lever 21 pivoted about the same axis as lever 20 is formed with a surface which abuts surface 14 of dog 12 when the trolley tends to overrun the chain. If a trolley 5A abuts a preceding trolley 5B, a tongue 24 of the latter trolley pivots lever 20 of trolley 5A to disconnect the drive thereof. Levers 20 and 21 are provided with counterweights 20A, 21A to bias them in a clockwise direction as viewed in Fig. 1. Projections 24A on trolley 5B are at a lower level than projections 20B on which surfaces 17 are formed and are contacted by dogs 12 when the tracks converge for transfer of a trolley to a new track. The chain is formed of alternating horizontally and vertically arranged pairs of plates 9, 9<SP>1</SP>. The chain and trolleys are provided with running wheels 11, 16 and guide wheels 10, 17, 23. In the modification of Fig. 3, the paired trolleys 5A, 5B are replaced by a single trolley and the functions of the tongue 24 and projection 24A are taken over by the spur 24<SP>1</SP> of an arm 26. A trolley spacer 28 is also incorporated with the arm 26. Fig. 5, (not shown) illustrates a method of camming a drive lever on a trolley out of contact with a drive dog.
Patent GB-668477-A (GB)
Title: Improvements in and relating to screening cloth, bolting cloth and the like
IPC: D03D15/00
Filed: 1949-09-16
Abstract: 668,477. Screening and bolting fabric. COURTAULDS, Ltd., COTTERILL, E., and ROBINSON, E. July 20, 1950 [Sept. 16, 1949], No. 23895/49. Class 142(iv) Synthetic monofils are woven as shown to produce fabrics whose weight and cover factors lie between specified limits, the cover factors in the warp and weft directions being approximately equal. The monofils may be " Terylene " (R.T.M.), nylon, copolymers of vinyl chloride with vinyl acetate or acrylonitrile, or a polymer of acrylonitrile. Specifications 461,236, 461,237, 546,075, [all in Group IV], 610,171 and U.S.A. Specifications 2,297,729 and 2,355,635, are referred to.
Patent GB-664473-A (GB)
Title: Improvements in and relating to index files for loose papers
IPC: B42F17/00
Filed: 1949-09-16
Abstract: 664,473. Filing papers. ELSDEN, H. E. Sept. 16, 1949 [July 13, 1949], No. 23938/49. Class 146 (i). An index file for loose papers, particularly of large size, comprises a base A, a row of pins E parallel to one edge of the base on which are threaded index leaves L between the loose papers as H, J, the pins E being inserted in a block C, secured as by screws K to the base A, having a sloping front edge D so as to present no obstruction to the sliding of the edge of a sheet, as J, up to and against the pins E and a separator F to permit easy removal or insertion of a sheet. The index leaves L are narrow strips each provided with a row of perforations to engage the pins E and are arranged in overlapping relation. The separator F is a non-flexible board 1 provided with tongues 9 which lie between the pins E when the board is moved forward between two leaves,'the board F being raised as shown to permit access to the under leaf J.
Patent GB-1180892-A (GB)
Title: Ultraviolet Process and Apparatus for Disinfection of Aqueous Liquids.
IPC: C02F1/32
Filed: 1968-05-21
Abstract: 1,180,892. U/V liquid sterilizing apparatus. IONICS Inc. 21 May, 1968 [29 June, 1967], No. 24053/68. Heading H5R. In the sterilization of an aqueous liquid by passing it around the outside of a U/V source, deposition of slime on the surface of the source is avoided by placing an electrode in the chamber through which the liquid is passed, said electrode being connected to the positive side of a D.C. source, the negative side of which is connected to one of the electrodes of the U/V source. In the Figure, U/V lamp 1 is placed axially in a preferably cylindrical chamber 2 which is slightly shorter than the lamp. Chamber 2 may have a removable end 6 rendered leakproof by gaskets 69 and 66 and both ends are fitted with sealing devices 7 and 7a comprising threaded collar 10, cap 9 and 0-ring 8 to render the chamber leakproof. Chamber 2 has inlet 4 and outlet 5 for the liquid to be irradiated and the wall of the chamber is covered with an electrically conductive grid of titanium or graphite which is rendered electrically positive by being connected via bolt 13 and lead 14 to the positive pole of D.C. source 15. The negative pole is connected at 21 to one of the electrical feed lines to the U/V source. After switch on the source, a voltage of 1000- 2000 V. is applied to the anode 12, and this produces a small current for example of a density of less than 1 micro ampere per square decimeter, and as a result the negatively charged colloidal matter in the solution is attracted to the positive anode and deposited there, thus eliminating any slime formation and the resulting loss in sterilizing efficiency of the U/V tube.
Patent GB-387023-A (GB)
Title: Improvements in or relating to the protection of electrical apparatus against abnormal currents
IPC: H02H1/00
Filed: 1931-08-27
Abstract: 387,023. Transformers. SHOTTER, G. F., 14, The Ridgeway, Friern Barnet, Middlesex, and KNOWLES, F. C:, Melbourn House, Gunnersbury Avenue, Ealing, London. Aug. 27, 1931, No. 24115. [Class 38 (ii).] In apparatus comprising a transformer and an indicating or recording instrument for measuring leakage currents, particularly earth currents in three-phase star-connected systems, in order to protect the instrument 17 from heavy surges in the primary 7 of the transformer, the transformer employed is so constructed and arranged that, while sensitive over the normal range of currents to be measured, its core 19 becomes saturated when the primary current rises above normal so that the secondary current supplied to the instrument thereafter remains practically constant and independent of the primary current. For this purpose the core may be made of a nickel-iron alloy or of silicon steel, or of a combination of these materials,. or it may be provided with a short length 23, Fig. 3, of reduced cross section. The secondary winding 9 of the transformer may be connected through a choke 11 and resistance 13 to a rectifier 15 which supplies direct current to a moving-coil recording ammeter 17. Specifications 188,688, 247,824, 258,287, 309,956, 312,082, 312,658, [all in Class 38 (ii), Electric currents, Converting &c.], and 357,049 are referred to.
Patent GB-916558-A (GB)
Title: Enol ethers of 4-substituted 3-oxo-í~-steroids
Inventor: KIRK DAVID NEVILLE
IPC: C07J75/00
Filed: 1960-07-12
Abstract: The invention comprises steroids having apart from possible additional unsaturated linkages and substituents at the 11-, 16- and 17-positions the formula <FORM:0916558/IV (b)/1> (wherein R is an alkyl or cycloalkyl radical of at most 7 carbon atoms, R1 is methyl or chlorine and R11 is hydrogen or methyl) and their preparation by reacting the corresponding D 4-3-ketones with the appropriate alcohol ROH or with an orthoester thereof in the presence of a catalytic quantity of hydrogen ions.  Conveniently a trialkylorthoformate HC(OR)3 is used, in the presence of a catalytic quantity of the corresponding alcohol and an acid catalyst such as sulphuric, toluene-psulphonic, perchloric or hydrochloric acid, in an inert solvent.  Alternatively the alcohol ROH may be used alone in the presence of an azeotropic carrier such as iso-octane.  In a third method ethyl orthoformate is used and the pre-formed enol ethyl ether is then reacted with the desired alcohol.  The process may be applied to steroids of the androstane, pregnane or spirostane series which may additionally contain unsaturated linkages at positions such as 9-11, 16-17, 17-20 and 20-21, hydroxy or acyloxy groups at positions 11, 16, 17, 20 or 21, oxo groups at positions 11, 17 and 20, alkyl groups of up to 4 carbon atoms at positions such as 11, 16, 17 and 21, ethynyl groups and substituted ethynyl groups of up to 4 carbon atoms at position 17, methylene groups at positions such as 11 and 16, halogen atoms at positions such as 11, 16, 17 and 21, isopropylidenedioxy groups at position 16-17 in 20 - oxo - pregnanes and bis-methylenedioxy groups at position 17a ,20:20,21.  Detailed examples are provided.  In the Provisional Specification R is defined as an alkyl or alicyclic radical of at most 7 carbon atoms, and reference is made to starting materials containing, in addition to the groups and unsaturated linkages detailed above, unsaturated linkages at positions 6-7, 7-8, 11-12 and 15-16, alkyl groups at positions 1, 2 and 7 and halogen atoms at position 9.  Specification 888,165 is referred to.
Patent GB-896947-A (GB)
Title: Monoazo-dyestuffs containing phosphoric acid ester groups and process for their manufacture
IPC: D06P1/00
Filed: 1958-07-28
Abstract: The invention comprises azo dyestuffs of formula R2-N=N-R1-OPO(OH)2 wherein R1 is a residue of the benzene, naphthalene or diphenyl series, the group -OPO(OH)2 being directly attached to a carbon atom of the aromatic nucleus and not being in ortho position to the azo group when R1 is a benzene residue, R2 is the residue of an azo component coupling ortho to a phenolic or enolic hydroxyl group, R1 and R2 being free from further water-solubilising groups, or a water-soluble alkali metal, ammonium or organic base salt thereof. They are prepared by diazotising an amine of formula NH2-R1-OPO(OH)2 and coupling the diazo compound with a suitable coupling component. The salts of the azo dyes are prepared by usual methods.  The azo dye salts are used to dye cellulose acetate from a weakly acid solution in yellow, red and brown shades.  In Examples: (1) phosphoric acid 3-aminophenyl monoester is diazotised and coupled with 1-(31-nitrophenyl)-3-methyl-5-pyrazolone; (2) phosphoric acid 2-chloro-4-aminophenyl monoester is diazotised and coupled in aqueous acetone medium with 1-(21 : 31-hydroxynaphthoylamino)-2-methoxybenzene.  Many similar examples are specified.  Specifications 506,262 and 516,929 are referred to.
Patent GB-155924-A (GB)
Title: Improvements relating to transporting gear for ships' lifeboats
IPC: B63B23/18
Filed: 1919-10-04
Abstract: 155,924. Harland & Wolff, Ltd., and Stewart, J. D. Oct. 4, 1919. Transporting boats across ship's deck.-ln apparatus for transporting ship's inboard lifeboats into launching position, of the type comprising a pedestal winch connected by means of a flexible cable or equivalent, with a transporter mounted on rails arranged transversely of the deck, the cable is positively connected to the winch and may be connected with the transporter by a breeched connection. The pedestal winch a, preferably located on the centre-line between the rails g<1>, g<2> which support the transporter g built up of angle-iron g<8>, comprises a barrel b secured to a vertical spindle c driven by worm gearing e, e' actuated by hand or power. From the barrel b a rope l passes through the slat a<1> to the connection g<7> on the transporter, and another rope h passes through the slot a<2> around the pulley i to the breech connection h<1>, h2 on the outboard side of the transporter. An adjustable turn-buckle may be fitted to the ropes l, h, or they may be adjustably secured to the barrel b. The boat is suported on chocks, preferably collapsable, so that hoisting before launching is unnecessary.
Patent GB-204507-A (GB)
Title: Improvements in and relating to end-lasting machines
IPC: A43D21/12
Filed: 1922-09-08
Abstract: 204,507. Gimson Shoe Machinery Co., Ltd., and Castle, E. Sept. 8, 1922. Lasting. - In an end-lasting machine of the type using two wiper plates which in the lasting operation swing simultaneously about a common centre screws 6, 7 threaded in the wiper carriers 3, 3a are adapted to engage abutments 23 on the wiper plates 1, 2 to permit of independent precise adjustment of the wiper plates in their carriers. Springs 22 are interposed between the abutments and the screws so that the wiper plates move at first with a yielding pressure and later, when the screws meet the abutments, with an unyield. ing pressure. The screws may be replaced by cams.
Patent GB-243933-A (GB)
Abstract: 243,933. Reep, M. L. Feb. 9, 1925. Valves controlled by pilot or relay valves; spindles.-A valve device particularly applicable as a flushing valve for lavatories and of the type in which the main valve is connected to a piston working in a cylinder supplied with inlet pressure through a pilot valve seating on the main valve has the pilot valve spindle connected by a coupling device to a spindle secured to the actuating push. The main valve V has guide wings 41 and is screwed to a piston P provided with packing rings 7 and working in a cylindrical projection 5 on the casing. The pilot valve V<1> seats on the main valve and has a spindle 13 arranged in a central bore 12 in the main valve and provided with a coupling flange 28 having one flattened side 30. This flange is adapted to engage the recess 27 between two similar flanges 29, 33 on the spindle 22 secured to the pushbutton 21, the spindle 13 passing into a slot 34 and the flat 30 engaging the bottom of the recess to prevent relative rotation. A leakage port 52 regulated by a screw 50 permits the escape of pressure fluid from the cylinder 5.
Patent GB-1288346-A (GB)
IPC: F25J3/00
Filed: 1971-04-19
Abstract: 1288346 Plate heat exchangers TRANE CO 19 April 1971 [8 April 1970] 24446/71 Heading F4S In a plate heat exchanger 10 comprising a plurality of spaced apart rectangular plates 12 defining therebetween passages 16, 26 having corrugated heat transfer fin sections 34 therein, an inlet distributor arrangement 32 is provided in each passage 16 to ensure that fluid entering through side inlet header 30 and leaving through side outlet header 28 is equally distributed across the entire width of the passage 16. A similar arrangement 36 is also provided at the outlet end of each passage 16 for collecting the fluid. As shown the inlet distributor arrangement 32 comprises triangular fin sections 38, 46, and a triangular section 52 which has a higher flow resistance per unit length than the sections 38 and 46.
Patent GB-224672-A (GB)
Title: A process for the production of sheets, moulded articles and the like, from casein
Filed: 1923-10-03
Abstract: Casein is dissolved or made into a paste in water to which is added a casein solvent such as an alkali, sodium or ammonium chloride, hydrochloric or acetic acid.  The solution or paste is heated to 90 DEG -180 DEG  F. and a precipitant is added according to the solvent acid, whereupon a rubber-like mass separates.  The mass is pressed between wet cloths for about 6 hours, and is then moulded, and placed on absorbent material for 2-10 days to drain.  The articles are then immersed for 2 days-3 weeks in a mixture consisting of 45 per cent of distilled water, 45 per cent of a formaldehyde solution of 40 per cent strength, and 10 per cent of glycerine, and are finally dried at about 65 DEG  F.ALSO:Casein is dissolved or made into a paste in water to which is added a casein solvent such as an alkali, sodium or ammonium fluoride, hydrochloric or acetic acid.  The solution or paste is heated and a precipitant is added according to the solvent used, whereupon a rubber-like mass separates.  The mass is pressed between wet cloths, and is then moulded, and placed on absorbent material to drain.  The articles are then immersed in a hardening mixture consisting of distilled water, formaldehyde solution and glycerine, and finally dried.
Patent GB-837439-A (GB)
Title: Improvements in electrically driven wheeled vehicles
IPC: H02P5/695
Filed: 1956-08-10
Abstract: 837,439. Control of two D.C. motors. NEW CONSOLIDATED GOLD FIELDS Ltd., and SYMES, H. E. J. Aug. 10, 1956 [Aug. 11, 1955], No. 24596/56. Addition to 722,293. Drawings to Specification. Class 38 (3). The traction system described in the parent Specification is modified by the omission of the fixed minimum resistance in series with the diverter resistance, and other means are provided for maintaining a minimum field excitation of each motor when the associated shunt field winding is fully diverted. Thus, each field winding may comprise a number of turns which are never shunted by the diverter resistance, or the field excitation may be maintained by compound windings carrying the line and individual motor currents. The tap for the diverter resistance may be coupled to a speed governor to prevent excessive speeds. In order to decrease the excitation differential between the two motors, a fixed compensating resistance may be provided in series with the shunt field windings.
Patent GB-1212325-A (GB)
Title: Method of producing alloy steels
IPC: C21C5/52
Filed: 1969-05-14
Abstract: 1,212,325. Refining alloy steels. DEUTSCHE EDELSTAHLWERKE A. G. May 14, 1969 [Sept.26, 1968], No.24664/69. Heading C7D. Alloy steels are refined by:- a) Producing a melt of about the correct composition in an electric arc furnace; b) Partially desulphurizing the melt in a ladle using a slagging agent (e.g. lime-fluorspar associated with one or more of Al, Mg and Si); c) Removing the slag; d) Continuously subjecting the melt to vacuumcirculatory-degassification while introducing oxygen into the ladle and a pulverized slagging and desulpurizing agent into the vacuum chamber, the melt being returned to the ladle; and e) Deslagging the melt and pouring off refined alloy steel. Alloying or conventional deoxidizing agents additions can be made during the vacuum degassification step.
Patent GB-1011002-A (GB)
Title: Toroidal acoustic generator
IPC: G10K5/00
Filed: 1963-06-21
Abstract: 1,011,002. Whistles. ASTRONICS Inc. June 21, 1963 [July 9, 1962], No. 24683/63. Heading G5J. A sonic generator comprising a conduit 10 (Fig. 1) supplied with pressure gas and terminating in a nozzle 70 opposite a resonator 60 carried by a stem 44 coaxial with the conduit and nozzle is provided with a toroidal reflector 72 having a concave portion 74 and a convex portion 76 together with a lip portion 78 of spherical crosssection and lying in a flame intermediate the nozzle and the bevel edge 68 of the resonator. With this arrangement the gases G (Fig. 4) discharged from the resonator under the action of the incoming pressure gas flow around the aerodynamical contour of the reflector and do not impede the sound field S which is focused on the axis of the system just below the resonator. Additionally, a power gain of 75 to 100% is stated to be obtained with the arrangement of the present invention over known arrangements employing elliptical or dish-like reflectors which envelope the resonator (Fig. 3, not shown). The invention has application in fields such as spray drying, defoaming, cleaning, atomization. U.S.A. Specification 2,519,619 is referred to.
Patent GB-1016238-A (GB)
Title: A new phosphate ester and its use in corrosion inhibiting compositions
IPC: C23F11/167
Filed: 1964-06-15
Abstract: Tripropargyl phosphate (see Division C2) may be used as a corrosion inhibitor in lubricating oils, hydraulic fluids and dry cleaning compositions.ALSO:A corrosion inhibiting composition comprises an acid and a corrosion inhibiting amount of tripropargyl phosphate (see Division C2).  The composition is suitable for use in metal cleaning and scale removal.  Specified acids are inorganic and organic acids such as hydrochloric, sulphuric, phosphoric, hydrofluoric, citric, oxalic and sulphamic acids.ALSO:The invention comprises tripropargyl phosphate which may be prepared, according to an example, by mixing propargyl alcohol with POCL3 in the presence of triethylamine and ether at -5 DEG  to - 10 DEG  C. for 1.5 hours and further reacting by stirring at - 10 DEG  to 0 DEG  C. for 1 hour, the amine hydrochloride formed and the ether being then removed.  The residue is treated with water, extracted with benzene and the product recovered from the organic phase. Tripropargyl phosphate may be used as a corrosion inhibitor in lubricating oils (see Division C5), hydraulic fluids (see Division C5), antifreeze compositions, dry cleaning compositions (see Division C5), and acid-metal cleaning or pickling solutions (see Division C7).