baber/WOPTO huggingface dataset:
Patent GB-1057853-A (GB)
Title: Improvements in or relating to hearing aids
Inventor: BESSON ALEX PETER
IPC: H04R11/00
Filed: 1963-09-25
Abstract: 1,057,853. Electro-mechanical, transducers; diaphragms. A. P. BESSON & PARTNER Ltd. Sept. 25, 1963, No. 37762/63. Heading H4J. A microphone comprises a ferromagnetic box-like casing containing a U-shaped armature having parallel arms 8, 9, the arm 9 being adjacent one face of the casing and secured at one end 13 thereof, the intermediate web being supported by the casing through a tab 10. A coil 17 encircles the arm 8. A U-shaped polepiece 14 carrying permanent magnets 15, 16 is affixed to the arm 9 and embraces the arm 8. A silver-plated beryllium copper drive pin 21 connects the arm 8 to a diaphragm 22 extending across the casing. Sound waves enter the casing through an aperture 32. In a similarly constructed earphone the magnets 15, 16 and, if desired, the coil 17, are mounted on the arm 8. Sound waves are conducted through a tube attached to the aperture 32 to a person's ear, or the distribution of masses and stiffnesses may allow energy transfer to the mastoid bone. A tool may be inserted through a window 31 to bend an extension 30 of the armature to adjust the polepiece 14. The thickness of the silver layer on the pin 21, and thus the moving mass, may be adjusted by rolling. The diaphragm 22 comprises a sheet 24 of polyethylene terephthalate secured to the casing and carrying an aluminium sheet 25 with its centre part raised in an oval bead to provide a tubular space connecting a front opening 27 through the sheet 25 and a rear opening 28 of the sheet 24. This tube permits control of the frequency characteristics by varying the positions of openings 27, 28. The microphone and earphones may be used in a spectacle type of hearing aid. Reference has been directed by the Comptroller to Specification 869,234.
Patent GB-870580-A (GB)
Title: New azo dyestuffs containing thiocyanoalkyl groups
IPC: C09B29/08
Filed: 1958-11-24
Abstract: The invention comprises azo dyes of formula:  <FORM:0870580/IV(c)/1> wherein R is the residue of a diazo compound of the benzene, naphthalene, thiazole or thiodiazole series, which is free of sulphonic or carboxylic acid groups and cyano groups, X and R1 are hydrogen or an alkyl or thiocyanoalkyl group and R2 is a thiocyanoalkyl group which may contain substituents, other than sulphonic acid and carboxylic acid groups, in the alkyl radical, all the alkyl groups having 1-5 carbon atoms.  They are prepared by coupling a suitable diazonium compound with an N-thiocyanoalkyl-aniline.  Specified diazo components, other than those in examples, are 4-thiocyano-aniline, 2 : 6-dibromo-4-thiocyano-aniline, 2-methyl- or -methoxy- or -nitro- 4-thiocyanoaniline, 4-amino-41-thiocyano-1 : 11-azobenzene, 2-amino-benzthiazole, 2-amino-6-thiocyano-benzthiazole, 1-aminonaphthalene and 2 : 4-dibromoaniline.  The dyes give yellow, orange, red and violet shades on acetate rayon, aromatic polyester and synthetic polyamide fibres.  In examples diazonium compounds prepared from 4-chloro- or -formyl- or -carbomethoxyaniline, 2 : 4-dichloroaniline, 2 : 6-dichloro-4-nitroaniline, 2-chloro-4-nitro- or -thiocyanoaniline, 2-methoxy-4-nitro- or -5-ethylsulphonyl-aniline, 2-trifluoromethyl-5-chloroaniline, 2-methyl- 5-dimethylsulphonamidoaniline, 2-bromo-4 : 6-dinitroaniline, 1-amino-2 : 4-dithiocyanonaphthalene, 2-amino-5-nitro-1 : 3-thiazole, 2-amino-4-methyl-5-nitro-1 : 3-thiazole, 5-amino-3-phenyl-1 : 2 : 4-thiodiazole, 4-amino-1 : 11-azobenzene or 4-amino-2 : 5-dimethoxy-41-nitro-1 : 11-azobenzene are coupled with N-b -thiocyanoethyl-N-methyl- or -butyl-aniline, N-methyl- or -ethyl-N-b -thiocyanoethyl- 3-methylaniline, N-(b -hydroxy-g -thiocyanopropyl)- 3-thiocyanomethyl-aniline, N : N- di(b -thiocyanoethyl)-aniline or N : N- di (b -thiocyanoethyl)- 3-methyl-aniline.
Patent GB-523309-A (GB)
Title: Improved method of manufacturing fusible elements for electric fuses
IPC: H01H85/055
Filed: 1938-12-30
Abstract: 523,309. Fusible cut-outs. CALLENDER'S CABLE & CONSTRUCTION CO., Ltd., and METCALF, A. W. Dec. 30, 1938, No. 37873. [Class 38 (i)] An element for a fuse consisting of a pair of U-shaped wires or groups of wires joined by a piece of low melting-point metal is made by a continuous process by placing the groups of wires 1 in a parallel position, attaching at intervals the low-melting point pieces 2 and then cutting the wires 1 at points between the pieces 2 and bending the wires to U-shape. If end-pieces 4 are to be provided, they are attached in pairs to the wires 1 before cutting the wires. The attachment may be performed by heating the wires by a current or otherwise so that the pieces 2 and the end-pieces 4 or a fusible coating thereon is melted on to the wires 1.
Patent GB-996327-A (GB)
Title: A method of raising the calorific value of gasification gases
IPC: C10K3/02
Filed: 1962-10-08
Abstract: A method of producing a gas of high calorific content comprises gasifying a solid fuel, e.g. coal, with oxygen or oxygen-containing gases and steam and/or CO2 and reacting vaporized hydrocarbons left in, or if desired, added (in liquid form) to the gas, with steam in the presence of a hydrogenating and cracking catalyst (nickel) at a temperature of 450 DEG  to 650 DEG  C., the volumes of the reactants and the cracking temperature being adjusted so that the reactions are autothermic or slightly exothermic. The hydrogenating cracking step serves to increase the methane content of the gas, e.g. from 8.9 vol. per cent to 28.8 vol. per cent in a specific example, and the liquid hydrocarbons may be added during a washing step which serves to saturate the gas with steam. In the example, open burning coal was gasified at 22 ats. abs. with superheated steam and oxygen in the proportions of 4 kg. of steam per cubic metre (S.T.P.) of oxygen. This gas was cooled to 185 DEG  C. with a water wash and 400 gms. of light petrol and 1200 gms. of steam per cubic metre (S.T.P.) of dry gas were introduced into the gas and the catalytic reaction carried out at 600 DEG  to 650 DEG  C.  The resulting gas was cooled and washed to reduce the CO2 content, nitrogen was added, and the gas passed at 360 DEG  to 400 DEG  C. with steam over a conversion catalyst.  Specification 747,549 is referred to.
Patent GB-1248927-A (GB)
Title: Rolling mills
Inventor: SWIFT ERIC OWEN
IPC: B21B31/10
Filed: 1968-08-09
Abstract: 1,248,927. Rolling mills. DAVY & UNITED ENG. CO. Ltd. 6 Aug., 1969 [9 Aug., 1968], No. 38054/68. Heading B3M. To help change the work rolls in a rolling mill the work roll clocks 14 and 15 are each provided with wheels 56 or 55 at their bases, the wheels being supported on beams 21 in the windows of the mill housings. The chocks nest one within the other, with the wheels carried on lateral extensions 51 and 53. The extensions are arranged such that when the wheels engage the beams 21, the upper work roll is held clear of the lower one. With the wheels in engagement with the beams, the rolls can be removed as a unit from the mill. In place of the fixed beams 21, which require the lower backing roll to be lowerable for allowing contact between the wheels and beams, movable beams (Fig. 2, not shown) may be provided. The movable beams are used in a mill having a fixed lower backing roll, the beams being raisable to bring them into contact with the wheels. The beams carry hydraulic pistons 36 and 37 which act between respective extensions 54 and 51 on the chocks 14 and 15 to urge the work rolls apart.
Patent GB-1100471-A (GB)
Title: Improvements in or relating to the handling of textile materials
Inventor: MEARDON JOSEPH IRVING
IPC: D06C29/00
Filed: 1963-09-27
Abstract: 1,100,471. Web coating apparatus; finishing fabrics. RUBBER & PLASTICS RESEARCH ASSOCIATION OF GREAT BRITAIN. 25 Sept., 1964 [27 Sept., 1963], No. 38094/63. Heading D1L. A method of preserving the dimensional stability of textile material during the coating or impregnation thereof comprises contacting the textile material with a relatively non- extensible material provided on its surface with projections which wholly or partly penetrate the textile material. In the embodiment shown textile fabric C to be coated is fed from takeoff roll A to coating apparatus consisting of calender rolls X, Y, Z and rollers E, E' carrying an endless belt having a hooked nylon surface uppermost, which surface engages with the fabric C as it is fed into the nip between rollers Y and Z. Coating material, e.g. rubber or 'plastic' mix is fed between rolls X, Y and the belt is supported by metal trays D, D<SP>1</SP>, D<SP>2</SP>, D<SP>3</SP>, D<SP>4</SP>. After coating, the surface is brushed with talc at F and the coated fabric is separated from the belt by a knife M and passes over roller G to a driven take-up roll K via accumulator roller J. The endless belt may be formed of cotton duck to which are fastened strips of nylon tape carrying closely packed nylon hooks. Alternatively the belt may carry small rods or spikes of wire or nylon. In a further embodiment the fabric is united with the belt before reaching the nip of the calender rolls by means of a pair of squeeze rollers and the bottom roll Z is used to drive the belt instead of separate roll E'.
Patent GB-1512460-A (GB)
Title: Sealed spindle drive having particular utility for high pressure shut-off valve units and other control valve units
IPC: F16K31/50
Filed: 1975-09-18
Abstract: 1512460 Valves; seals BASF AG 18 Sept 1975 [19 Sept 1974] 38320/75 Headings F2V and F2B An axially movable valve spindle 4a is connected to a rotatable threaded drive shaft 4b by a ball 8 engaging the concave end faces of the spindle and shaft and by cylindrical halfshells 9a, 9b surrounding the ball and engaging annular recesses. Spindle 4a is sealed within housing 1 by spring washers 7 acting on a packing 3 sandwiched between rings 6. Packing 3 may be formed by coated groove-ring collars, or by resilient one-piece sleeves 3a, Fig. 3, having annular inclined grooves 12. In the latter case rings 6 are omitted. Shaft and spindle lubricant may be introduced through bores (10, Fig. 2, not shown).
Patent GB-1335097-A (GB)
Title: Emulsion type blasting agent
IPC: C06B47/14
Filed: 1971-08-16
Abstract: 1335097 Explosive compositions E I DUPONT DE NEMOURS & CO 16 Aug 1971 [18 Aug 1970] 38396/71 Heading C1D A water-in-oil explosive composition comprises a discontinuous aqueous phase containing an inorganic oxidizing salt, a continuous phase comprising a carbonaceous fuel having a negative oxygen balance, and an alkali metal or ammonium stearate as an emulsifier. Stearic acid may be included with the stearate. The inorganic salt may be a nitrate or perchlorate of ammonia, an alkali metal or an alkaline earth metal, e.g. a mixture of ammonium nitrate and sodium nitrate, the fuel may be fuel oil, diesel oil, tall oil, paraffin wax, benzene, oleic acid, nitropropane, or nitrobenzene, and the emulsifier sodium stearate. Sensitizers which may be added are TNT, PETN, RDX, HMX, 2,4,6- trinitro - N - methylaniline, nitrostarch, nitrocellulose, smokeless powder, nitrogen-base salts, and particulate Al or Mg. Air or gas bubbles may be incorporated by mechanical agitation, injecting air or nitrogen, adding hollow resin or glass particles, or generating gas from hydrogen peroxide, N,N<SP>1</SP>-dinitrosopentamethylene pentamine, or potassium borohydride. As additional fuels may be added finely-divided ferrosilicon, ferrophosphorus, carbon, sulphur, sugars, or vegetable meals. In one example a small quantity of hydrazine monohydrate is added. The compositions arepumpable and water resistant, and do not adhere to polyethylene storage bags.
Patent GB-1368613-A (GB)
Title: Process for the preparation of substituted naphthaquinones
IPC: C07C67/00
Filed: 1971-08-17
Abstract: 1368613 Naphthaquinones IMPERIAL CHEMICAL INDUSTRIES Ltd 26 July 1972 [17 Aug 1971] 38485/71 Heading C2C Compounds of Formula I wherein X is an n-valent substituent which is stable to oxidation, and connected to the ring system(s) through a nitrogen atom, are obtained by reacting a compound of Formula II with an alkali metal nitrosodisulphonate. In the exemplified embodiments X is an acetamido group and Fremy's salt, i.e. dipotassium nitrosodisulphonate, is employed as the alkali metal nitrosodisulphonate.
Patent GB-1075376-A (GB)
Title: Gas filter elements
Inventor: BUCKMAN KENNETH ERNEST
IPC: F02M35/024
Filed: 1964-09-21
Abstract: 1,075,376. Gas filter. GENERAL MOTORS Ltd. July 29, 1965 [Sept. 21, 1964], No. 38512/ 64. Heading BIT. A gas filter element 1 comprises a layer of polyurethane foam 2 having on its inlet side irregularities to increase the surface area and on its outlet side a thinner filtering layer 4 of finer porosity. The irregularities may be angular or curved corrugations or pyramidal formations, and the layer 4 may be felted, knitted or woven fabric or filter paper. Two layers 2 may be cut from a single block of foam material using a corrugated knife or a heated wire (Fig. 2, not shown). Layer 2 may be impregnated with mineral oil. Figure 5 shows a I.C. engine carburettor intake filter, in which the filter element 1 is supported on a wire gauze 6 and clamped at its periphery between the two parts 7, 8 of the housing. In Figure 6 (not shown) the filter element is of tubular form and supported by an internal wire gauze member (11), and the ends of the element are sealed either by gaskets 12 secured to the element by adhesive or else the ends of the element are folded outwardly over the gauze support (1) (Fig. 7, not shown) and compressed by clamping. Densities and porosities of foam 2 and thickness of layer 4 are given.
Patent GB-1157507-A (GB)
Title: Colour Photographic Materials.
Inventor: HUNT FRANCIS GEORGE
IPC: G03C8/24
Filed: 1965-09-10
Abstract: 1, 157, 507. Photographic colour transfer receptor sheet. ILFORD Ltd. Sept. 8, 1966 [Sept. 10, 1965], No.38752/65. Heading G2C. A receptor sheet comprises sheet material having incorporated a milled aqueous dispersion of an oxidizing agent which is benzoyl peroxide, lauroyl peroxide or N-bromosuccinimide. The sheet is used in a colour transfer process in which a silver halide material containing a colour coupler is exposed, colour-developed to immobilize the colour coupler in image areas and the uncoupled coupler allowed to diffuse with colour developer to the receptor sheet where it forms a positive colour image in the presence of the oxidizing agent.
Patent GB-1499109-A (GB)
Title: Railway track heating apparatus
IPC: B61L/
Filed: 1975-09-01
Abstract: 1499109 Railway track heating apparatus BULLFINCH (GAS EQUIPMENT) Ltd 1 Sept 1975 [5 Sept 1974] 38809/74 Heading F4T [Also in Division E1] Railway track heating apparatus comprises a duct 16, open at one end, for defining a flue in use extending longitudinally of a length of rail 12, and a gas fuelled burner at said one end of the duct having a burner tube 27 in which a mixture of gas and air is completely burnt to  form a flame which is directed into a flame tube 25 within the end part of the duct adjacent to but spaced from the burner tube. The duct 16 is an open-sided channel whose open side is urged into abutment with one side of the rail by brackets 18 which are adjustable by means of eccentric cams 22, and the end of the duct remote from the burner is closed, there being apertures 23 adjacent said closed end defined in part by the rail. A single burner is provided between two ducts 16, 17 having respective flame tubes 25, 26 into which flames are directed from T-shaped burner tube 27. The burner is lit by a spark igniter 29 fed by a batteryoperated pulse generator (34), Figs. 2, 5 (not shown), which is switched on when a pressuresensitive diaphragm switch 42 senses a sufficient gas pressure and is switched off by a thermostatic switch 36 when the burner is lit. There may be a solenoid valve (52), Fig. 5 (not shown), in the gas supply, downstream of the pressuresensitive switch 42 which is opened by a thermostatic switch (50) when the ambient temperature is below a predetermined level. The switch (50) may be by-passed and the valve (52) actuated by a manual override switch (54). The gas is supplied from pressurized containers, and a single supply and control circuit may be connected to several burners.
Patent GB-1394728-A (GB)
Title: Remote meter reading
IPC: G01R21/133
Filed: 1972-08-21
Abstract: 1394728 Selective signalling SANGAMO ELECTRIC CO 21 Aug 1972 [4 Nov 1971] 38918/72 Heading G4H In a remote meter reading system, the heaviest 15 minute demand is obtained by counting consumed quanta over 15 minute intervals and comparing the resultant values with a stored value from the previous highest count and entering the new count into the store if it is greater than the existing stored count. The store 29, is reset to zero once a month and its contents transferred alternately to accumulators 34, 38 whereby count B represents the current month's peak demand and counts C and D represent the previous two months peak demands. A kilowatt hour counter 46 is also provided. The system includes a transponder which in response to a call up signal transmits a series of 29-bit words each comprising a start code (3 "1"s), synch pulse, meter identity bits and bit representing the contents of 29, 34, 38 or 46. Each word is sent 5 times before moving on to the next. Many details are the same as in Specification 1,337,189.
Patent GB-1499790-A (GB)
Title: Relay set controller
IPC: H04Q3/545
Filed: 1976-09-21
Abstract: 1499790 Automatic telephone exchanges STANDARD TELEPHONES & CABLES Ltd 21 Sept 1976 39062/76 Heading H4K In an automatic telecommunication switching system, a plurality of electromagnetic relay sets are simultaneously controlled by a stored program data processor; each relay set has an interface through which information is exchanged between the relay set and the processor serially. In the embodiment, Fig. 1, eight outgoing junctor relay sets, e.g. 1, of a PENTACONTA (R.T.M.) system are controlled by a microprocessor. Each relay set has an interface device comprising three shift register units 2, 3, 4. The registers 2, 3, 4 and the microprocessor are I.C.s. Transfer of information is controlled by clock pulses supplied by the processor on leads 8 and 12. The state of the relay set is written into registers 2-3-4 via inputs 5 when a mode control output 7 is high and a clock pulse occurs on lead 8. When the mode control output 7 goes low, successive clock pulses on lead 8 shift the contents of registers 2-3-4 so that they are transmitted to the processor on lead 9, and at the same time new data which arrive from the processor on lead 10 are written in the registers 2-3-4. A clock pulse on lead 12 causes the new data stored in registers 2-3-4 and offered to the relay set on wires 6, to be stored in a set of latches, in the relay set, which feed relay drivers. The signals on leads 12, 7 and 8 are provided to all the eight relay sets simultaneously so that transfer of information between the processor and all the relay sets is simultaneous, and so that all the relay sets are processed by the processor at once. A processor can only process relay sets of the same type. Details of the software of the processor are described.
Patent GB-1062088-A (GB)
Title: Work feed and delivery mechanism for an addressing machine
IPC: B41L47/24
Filed: 1964-09-25
Abstract: 1,062,088. Feeding sheets to addressing machines. A. RENAUER. Sept. 25, 1964 [Sept. 27, 1963], No. 39091/64. Headings B6B and B6D. [Also in Division B8] A feed and delivery mechanism for an addressing machine comprises a continuously driven endless conveyer belt 15 which frictionally engages the work 10 to be addressed, towards one of the edges thereof, and conveys them over a table top 2 from a feed end 11 via a printing zone 5 to a storage container 40. An adjustably mounted work stop means 37<SP>1</SP> is provided downstream of the printing zone 5, and a work guide surface 21 extends alongside the belt 15 on the opposite side to the printing zone 5, the belt 15 being oblique to the line of travel of the work 10 and converging towards the guide 21 in the direction of conveyance. The work 10 manually or mechanically fed on to the table 2, interrupts a light beam between adjustable photo-electric elements 31, 32 causing the arms 22 of the work stop means to move via an electric magnet 25, 26, Fig. 4 (not shown) into their lower position where they arrest the work 10 in the zone 5 while the address is printed by a printing head 8. A further electromagnet is energized at the termination of the printing process causing the lifting up of the stop arms 22 and the work 10 is conveyed to the variable capacity container 40. The arms 22 have hooked ends sheathed in rubber at their work engaging ends and are mounted on a pivoted shaft at their other ends. The shaft incorporates a yoke which is actuated by the electric magnets to rotate the shaft and arms. Since the electromagnetic forces are of limited duration and a permanent magnet is used to hold the yoke in position until changed by the next electromagnetic action. A second work guide 46 of angle section is adjustably mounted on the table 2 on the opposite side of the printing zone 5 from the guide 21, and has its guide surface faced with nylon 48. As an alternative to this, a second belt converging towards its associated guide is provided for the second edge of the work 10, Fig. 6 (not shown). The feed delivery mechanism is built as a portable unit adapted to be mounted on the printing table 2 of an addressing machine.
Patent GB-920966-A (GB)
Title: Press ram for extrusion presses
IPC: B21C26/00
Filed: 1961-11-01
Abstract: 920,966. Extruding. BETEILIGUNGSUND PATENTVERWALTUNGS-G.m.b.H. Nov. 1, 1961 [Nov. 2, 1960], No. 39178/61. Class 83 (4). An extrusion press ram, particularly for sheathing cables with lead or aluminium, has an enlarged head 3 and one or more enlargements 7 spaced from the head. This facilitates the removal of the residue skirt 5 during withdrawal of the ram. A plurality of cutters 9 divide the skirt into longitudinal strips.
Patent GB-1370552-A (GB)
Title: Process for treating sulphuric acid sludge
IPC: C01B31/08
Filed: 1972-08-23
Abstract: 1370552 Purifying sulphuric acid; active carbon; sulphur dioxide KIMURA KAKOKI CO Ltd 23 Aug 1972 [23 Sept 1971 17 May 1972] 39319/72 Heading C1A Sulphuric acid sludge from the purification of petroleum products using sulphuric acid is purified by adjusting the free sulphuric acid concentration of the sludge to at least 65% by weight, based on the weight of water and free sulphuric acid in the sludge, heating the sludge to 150 to 190‹ C. with stirring at atmospheric pressure to dehydrate and carbonize organic materials in the sludge and filtering the resultant solution to separate the carbon from the sulphuric acid. Preferably the concentration of free sulphuric acid is from 65 to 90% by weight. Sulphur dioxide is evolved during the heating and may be recovered. Air may be blown into the reaction mixture instead of using mechanical stirring means. The carbon may be used as absorbent and the filtrate containing sulphuric acid may be recycled to the petroleum purifying stage.
Patent GB-1474225-A (GB)
Title: Method of producing an electrostatic latent image
IPC: G03G5/043
Filed: 1974-09-10
Abstract: 1474225 Transferring electrostatic images XEROX CORP 10 Sept 1974 [11 Sept 1973 25 June 1974] 39489/74 Heading G2H An electrostatic latent image is formed by imagewise exposure with electromagnetic radiation of an imaging member and capable of generating charge carriers on such exposure and is transferred to receiving member 7 by migration of the charge carriers through liquid 5 in response to an applied electric field. The member 1 may be a charged layer of photo-conductive material on a base 3 of transparent, electrically conductive glass, through which it is exposed with actinic radiation. After development with toner the developed image may be transferred from the member 7 to a suitable substrate, on which it is fixed. Multiple images may be superimposed to give colour copying.