baber/WOPTO huggingface dataset:
Patent GB-1482907-A (GB)
Title: Actuator device and control systems
IPC: F02M59/42
Filed: 1974-08-01
Abstract: 1482907 Ratchet mechanisms R R ABSALOM 1 Aug 1974 [1 Aug 1973 5 Dec 1973] 36556/73 and 56455/73 Addition to 1369792 Heading F2Q [Also in Division F1] In an electro-mechanical actuator, Fig. 1, which may be used for operating a shut-off control shaft of a diesel engine fuel injection pump, a pawl 3 and ratchet wheel 10a, together with a non-return pawl 9, derive unidirectional repetitive stepwise rotary movements from the linear oscillating movements of an armature 2 of a solenoid 1, with an internal return spring (not shown) which is energized by pulsations of current resulting from interruptions of the circuit by a switch 7, linked by levers 6, 38 and 5 to the armature 2. Attached to the ratchet wheel 10a is a pinion meshing with a toothed wheel 11 which carries a cam 12 co-operating with a switch 13, and wheel 11 also carries a crank-pin 37 upon which an output linkage arm 15 is pivoted. Arm 15 and cam 12 are each shown in Fig. 1 in a position corresponding to an "off" position of the apparatus controlled, and in this position the cam 12 is clear of switch 13, with contacts 13a open and contacts 13b closed, as in Fig. 3; which shows two circuit paths 20, 22 associated with change-over contacts 8d of a relay 8. When an external manual "on" switch 17 is closed, coil 8a of relay 8 is energized, and solenoid 1 starts a repetitive pulsation via path 22, continuing until switch 13 becomes operated by cam 12, after approximately 180 degrees rotation of wheel 11. Contacts 13b then open, contacts 13a close, but relay 8 remains energized, holding the actuator halted in the "on" position. When switch 17 is opened, releasing relay 8, solenoid 1 again pulsates via path 20, continuing until the initial "off" position is again reached, when cam 12 releases switch 13 and contacts 13a open. In an alternative embodiment, Fig. 4, a pivoted pawl 58 acts directly, i.e. without intermediate gearing, upon a ratchet output wheel 65, which is integral with cam 66 and fast on an output shaft 71, carrying a crank and a linkage arm (not shown), externally to casing 51. Through a lever arm 63, the pawl 58 also operates an interruptor switch 67 connected in series with a solenoid 53, so that repetitive pulsating linear movements of the armature 54, with spring return, result in unidirectional stepwise rotary movements of wheel 65, which is also engaged by a non-return pawl arm 62. Cam 66 operates a switch 68 provided with changeover contacts, such that in the actuator "off" position, cam 66 presses switch 68 and closes contacts (68a, 68c), Fig. 6 (not shown), which connect solenoid 53 to a first circuit path (83), and after approximately 180 degrees rotation of wheel 65, in the actuator "on" position, switch 68 is released and transfers connection to a second path (82). Power is applied to one of these paths by a manual "on-off" switch having changeover contacts, and thus no relay is required for path selection in this embodiment.
Patent GB-990756-A (GB)
Title: Improvements in or relating to methods of manufacturing wires
IPC: H01L21/48
Filed: 1962-09-26
Abstract: 990,756. Making wire; breaking. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Sept. 26, 1962 [Sept. 29, 1961], No. 36571/62. Headings B3A and B3E. [Also in Division H1K] A method of making a wire suitable for use in the manufacture of a point-contact semi-conductor device, e.g. crystal diodes, comprises separating an individual wire from a length of wire consisting of a metal core continuously coated with a wrapping metal which is softer and has a melting point lower than the core, by pulling at a part of the length which is locally heated to a temperature in the proximity of the melting point of the wrapping metal, whereby the surface ends of the individual wire and the length are substantially coated with wrapping material. A piece of molybdenum phosphor bronze or tungsten wire 1 having a diameter of 100Á and an elongation value of 10-20% is passed through a bath 2 containing a solution of 3% by weight of potassium aurocyanide in water at a temperature of 60 C. The wire is connected to the negative side of a battery whilst the positive side is connected to an anode 4. The length of wire dipped in the tank is approximately 250 cms. and the current supplied 800 mA. The resulting thickness of the gold layer is approximately 0.5Á. The wire is initially fired in a hydrogen atmosphere at 1400 C. and after coating at 1100 C. also in hydrogen. The gold-coated wire is gripped between a pair of copper tongs 12, 13 positioned 4 mm. apart which are connected to a voltage source of 1 to 2 volts, the tongs 13 are moved axially apart with a force of 12 kg. and the wire heated to about the melting point of the coating metal until it fractures. The ends of the fractured wires which are substantially coated with the gold layer are subsequently dipped in a doping solution of 10% by weight of gallium sulphate in water at room temperature, a current of 1.2 mA. being passed through the wire for 1 minute, one end of a piece of wire thus obtained may be welded to a nickel iron carrier 31 whilst the other end is in point contact with a semi-conductor crystal e.g. N-type germanium, and retained in a glass envelope 32 to form a crystal diode. Other doping elements such as indium, antimony or arsenic may be used and may be applied in or on the coating and before the core wire is separated into lengths. Platinum may be used for coating the core wire. Specifications 686,907 and 836,754 are referred to.
Patent GB-758331-A (GB)
Title: Improvements in or relating to turntables or traverses for vehicles or the like
IPC: A47F5/025
Filed: 1954-12-18
Abstract: 758,331. Turntables. JACOBY, W. P. E. Dec. 18, 1954, No. 36679/54. Class 104 (2). A turntable for displaying a vehicle incorporates four lifting jacks b therefor and a powerdriven trolley d which is hingedly mounted on the exhaust pipe of the vehicle. The turntable proper a, g is journalled on a floor plate e, f and carries an apertured insulating sleeve i (see also Fig. 4, not shown), on which slip rings are mounted, passages k, l being provided for the power cable. Brush gear m attached to an insulated bracket n conducts the electrical supply through a protection cover o to the motor and a lighting installation. The electrical source of supply may be a 2-12 volt battery or a mains transformer and rectifier unit. Skirts w may be arranged to conceal the turntable and trolley.
Patent GB-619582-A (GB)
Title: Improvements in wall constructions
IPC: E04B2/30
Filed: 1946-12-13
Abstract: 619,582. Wall ties. COOPER, W. E. Dec. 13, 1946, No. 36841. [Class 20(iv)] Slabs 10, 11 of a double skin wall are spaced by ties comprising a bolt, rod or tube 12 of which one end is embedded in one slab and the other protrudes through an aperture 19 in a slot of the other skin to which it is secured by clamping plates 22, 23. Plates 22 are secured on to a threaded portion 14 of the tie against nuts 24, and plates 23 have a thickened centre 25 which also screws on to the tie so as to be received in a recess 20 until the plate engages shoulders 21. Notches 27 and apertures in the plate enable cement or other grout to be forced into the cavity. Instead of the tie being cast in a slab a threaded socket may be cast therein, a tie being screwed into the socket when required. Specification 603,478 is referred to
Patent GB-808647-A (GB)
Title: Improvements in or relating to the fast dyeing of nitrogenous fibers with water-soluble metal-containing azo dyestuffs and acid milling dyestuffs
IPC: D06P1/60
Filed: 1956-12-03
Abstract: Nitrogenous fibres such as wool, silk and nylon, are dyed in a weakly acid region from an aqueous bath containing (a) a metalliferous azo dyestuff or an acid milling dyestuff or mixtures thereof; (b) one or more water-soluble polyglycol ethers, the hydrocarbon radical combined with the polyglycol residue carrying at least 8 carbon atoms and, if desired, hetero atoms such as N and/or O and/or P, and other substituents such as carboxyl groups; (c) an organic acid such as acetic, propionic or citric acid; (d) a buffer salt such as sodium, potassium or ammonium acetate, propionate or citrate or disodium phosphate; (e) at least 10 per cent by weight of the fibre of an alkali metal sulphate, dyeing being effected at the boil.  Lists of polyglycol ethers and suitable dyestuffs are given.
Patent GB-619599-A (GB)
Title: A new or improved current density indicating or control meter
IPC: G01R19/08
Filed: 1946-12-16
Abstract: 619,599. Automatic control systems. GUEST, KEEN & NETTLEFOLDS, Ltd., and WALLBANK, A. W. Dec. 16, 1946, No. 36960. [Class 38 (iv)] [Also in Group XXXVI] It is required to maintain constant or to periodically vary the current density in an electroplating vat. In the electroplating equipment shown devised for constant current density, the vat 12 is fed through a variable autotransformer 31 and rectifier 32. If for example, the current density as indicated by meter 26 increases a servo-mechanism 28 operates to apply a voltage to a control motor which then rotates a shaft 30 to reduce the output voltage of the auto-transformer 31 and restore the current density to its required value. The circuit may include a resistance 29, chosen so that the range of voltage variation across it suits the input characteristics of the servomechanism 28. The current density meter 26 operates in circuit with electrodes 13, 14 (with which it is calibrated) and a reversing switch 24. The latter is actuated at intervals by a synchronous motor 27 to interchange the polarities of the electrodes 13, 14 to avoid errors in the meter reading. It is stated that it may be arranged to reduce or increase the current density with the passage of time by the provision in the servo-mechanism of adjusting means actuated by the synchronous motor 27. The Provisional Specification mentions another scheme for maintaining constant current density in which limit contacts in the ammeter are connected to the motorized control of the auto-transformers.
Patent GB-1405201-A (GB)
Title: Electrophotographic apparatus
IPC: G03G15/05
Filed: 1973-08-03
Abstract: 1405201 Electro-photography MITSUBISHI DENKI KK 3 Aug 1973 [4 Aug 1972] 37019/73 Heading G2H Electro-photographic member 10 comprises a conductive substrate which may be in the form of a set of electrically separated but preferably overlapping electrodes 12a-12e, a main photoconductive layer 14 which is sensitive to visible light and an outer photo-conductive layer 16 which is sensitive only to ultraviolet light, and is transparent to visible light. During imaging of the member 10 by simultaneous exposure with visible light and charging a potential opposite to that applied by charging device 20 is applied through brush 34a to the electrode opposite the imaged area, and increases latent image contrast. A further potential may be applied during development. After development the image-bearing electro-photographic member may be exposed to an ultraviolet lamp 40a prior to transfer of the developed image, and a second ultraviolet lamp 40b may be used to remove the latent image after transfer of the developed image.
Patent GB-1090443-A (GB)
Title: Reciprocal microwave apparatus
IPC: H01P1/19
Filed: 1965-08-31
Abstract: 1,090,443. Gyromagnetic phase-shifters and attenuators. WESTINGHOUSE ELECTRIC CORPORATION. Aug. 31, 1965 [Sept. 14, 1964], No. 37131/65. Heading H1W. A reciprocal gyromagnetic transmission device for providing either phase-shift or attenuation comprises a symmetrically arranged member of gyromagnetic material and means for establishing in the member closed-loop magnetization in planes parallel to the direction of propagation. As shown, a slab 26 of ferrite extends between the centre lines of the broad faces 21, 22 of a rectangular waveguide 20. Zones 33 of magnetization are established in the ferrite member by current-carrying conductors 30 which extend through holes in the member and in the narrow sides of the guide (these may be omitted). The magnetization may be of a magnitude sufficient to cause resonance absorption or sufficient to produce a desired phase shift. This magnitude depends upon the distribution of the conductors 30, the strength of the currents and the directions of the currents in adjacent conductors, the latter factors being controlled e.g. by switches 39, 41, 42. If the ferrite has a square-loop hysteresis characteristic, current pulses may be used to effect changes in magnetization. In this case, a pulse generator is used to selectively energize the conductors through a suitable switching matrix. Demagnetization is effected by energizing an axial conductor 44.
Patent GB-1043770-A (GB)
Title: A stand support for a mirror
IPC: A45D44/02
Filed: 1965-08-31
Abstract: 1,043,770. Stands. A. J. BOROWSKI. Aug. 31, 1965 [Sept. 3, 1964], No. 37157/65. Heading A4H. A mirror stand comprises a base 2 from which extends a vertical column consisting of a rigid lower part 3 and an upper part 4 which is deformable and formed of metal rings interconnected by a flexible element inside the rings, a mirror 6 being supported at the upper end of the upper part 4 and a circular tray 7 being slidably adjustable on the lower part 3 and secured by a rubber ring 9. The lower part 3 is formed by releasable parts 3a, 3b also releasable from the base. In a modification two deformable rods are fixed at the top each bearing a mirror.
Patent GB-1190834-A (GB)
Title: Improvements in Pile Fabric
Inventor: LEVITCH ROBERT GRAY
IPC: D03D15/00
Filed: 1967-08-14
Abstract: 1,190,834. Laminated fabric. BURLINGTON INDUSTRIES Inc. 14 Aug., 1967, No. 37280/67. Heading B5N. [Also in Division D1] A pile fabric comprises a primary backing, a series of pile projections 15 secured to the primary backing and extending outwardly from one face thereof, and a secondary backing 7 secured to the other face of the primary backing, the secondary backing 7 being a non-foraminous woven sheet of substantially uniform thickness and woven of uniform flat strands 8 of manmade material. The primary backing may be woven as shown or may have the same construction as the backing 7, in which case the pile projections are inserted through the primary backing by means of needles to form a tufted fabric. The woven flat strands of the backing 7 may be of nylon, acrylic resins, modacrylic resins, polyethylene, polypropylene, polyvinyl chloride, polyvinylidene chloride, cellulose acetate, cellulose triacetate, polyesters, polyurethane or rayon. The fabric may be a rotproof shrink-proof floor covering.
Patent GB-803155-A (GB)
Title: Road or like ripper implement
IPC: E01C23/12
Filed: 1956-12-06
Abstract: 803,155. Scarifiers. CATERPILLAR TRACTOR CO. Dec. 6, 1956 [Sept. 11, 1956], No. 37301/56. Class 107 A road or like ripper implement for attachement to a vehicle comprises a supporting bracket 11 secured to the vehicle, stabilizer links 15 and draft links 16 pivotally secured by pins 17, 18 respectively, to the bracket 11 and forming a parallelogram linkage arrangement of the pivot points, a ripper beam 19 adapted to receive ripper shanks 30 and connected by pivot pins 22 with the extending ends of the draft links 16. A hydraulic jack 23 for actuating the ripper implement is connected at pivots 24, 26 disposed within the confines of the said parallelogram linkage. The jack 23 has a cylinder with an extensible rod, the pivoting trunnions 24 extending therefrom and bearings 24a carried by a pedestal. 25 secured to the ripper beam 19 for the trunnions 24, a pivot pin 26 connecting bosses 27 on a support 28 joining the draft links 16 and the rod, which extends to swing the links and so raise the ripper beam.
Patent GB-868890-A (GB)
Title: Epoxidation
IPC: C07D301/16
Filed: 1957-12-02
Abstract: An epoxy compound is produced by subjecting an olefinic compound to reaction with a carboxylic peracid formed in situ by reaction between the corresponding carboxylic acid and hydrogen peroxide, wherein water is distilled from the reactants during the reaction, preferably by azeotropic distillation using a water-immiscible solvent incorporated into the reaction mixture. The water-solvent azeotrope may be condensed and allowed to separate into two phases and the solvent phase returned to the reaction mixture.  Solvents which are inert under the conditions of reaction, e.g. hydrocarbon solvents such as benzene, isoheptane and hexane, are preferred.  The olefinic compound may be an olefinic ester such as an ester of an unsaturated aliphatic acid or alcohol, e.g. soya bean or cotton seed oil, the oleic and linoleic esters of 1,2-propylene glycol, 1,3-butylene glycol, ethylene glycol and pentaerythritol, esters of unsaturated fatty acids and oleyl, linoleyl or linolenyl adipates.  The carboxylic acid used to form the peracid may be acetic, propionic, formic or a dicarboxylic acid such as adipic acid.  When acetic acid is used sulphuric acid or a sulphonic cation exchange resin or similar acid catalyst, may be present.  Preferably a 5 to 50% excess of hydrogen peroxide is used, the amount of carboxylic acid being in the range of 0,15 to 1,00 equivalents of acid per mole of hydrogen peroxide.
Patent GB-918997-A (GB)
Title: Improvements in warp beams
IPC: D02H13/28
Filed: 1960-11-01
Abstract: 918,997. Warp beams. GROB, W. Nov. 1, 1960 [Nov. 17, 1959], No. 37482/60. Class 142 (2). The face 1 of a warp beam flange (which is die cast from aluminium, brass, or iron) is left unmachined and provided with a ring 10 of synthetic resin to guide the warp threads on to the beam. Alternatively, the flange is cast with a projecting rim at the position 10, the rim being machined. The unmachined part of the face may be sprayed with electically conductive paint to prevent the accumulation of static or may be coated with synthetic resin.
Patent GB-1505636-A (GB)
Title: Sulphamoylbenzoic acid derivatives and a process for their production
IPC: C07D209/14
Filed: 1975-04-25
Abstract: Novel heterocyclically substituted 5-sulphamoylbenzoic acid derivatives of the accompanying formula I, in which the symbols R<1>, R<2>, X and A have the meaning given in Patent Claim 1, are prepared by introducing the X radical into corresponding 3-nitro-5-sulphamoylbenzoic acids or their esters which carry a reactive group in the 4-position and whose 5-sulphamoyl group is protected, reducing the reaction product to the corresponding 3-amino compound, reacting this with dicarboxylic acid derivatives, reducing the 3-imido or 3-amido compounds obtained in this case and hydrolysing the reaction product obtained in this reaction to remove the protective group B and the ester group R<3>. The alkyl radicals R<2> can then be introduced by alkylation. The novel compounds are highly active saluretics and diuretics and can be processed, if appropriate combined with other therapeutics, to give medicaments for use in human and veterinary medicine. They are mainly used for the treatment of oedematous diseases of various origin. <IMAGE>
Patent GB-1116201-A (GB)
Title: Improvements in or relating to garment suspenders
Inventor: STEVENSON ERNEST
IPC: A41F11/04
Filed: 1964-09-15
Abstract: 1,116,201. Hose suspenders. STEELS & BUSKS Ltd. 13 Sept., 1965 [15 Sept., 1964], No. 37563/64. Heading A3V. [Also in Division E2] A garment suspender of the button and loop type comprises in combination a length of elastic web 1, a button 2, the base of which is permanently attached by welding to the lower end portion of the web and a button loop 4 having an upper end portion secured by welding to the web in such a position as to permit of engagement of the button with the loop. To permit the welding at least some of the threads of the elastic web and/or the material of the button and button loop must be thermoplastic; the warp threads of the elastic web are made of an elastomeric material and polyurethane and natural and artificial rubber are mentioned; the weft threads are made of a non-elastomeric material and cotton, rayon, polyamide and polyvinyl chloride are mentioned; the thermoplastics mentioned for the button and button loop are polyvinyl chloride, polypropylene, and nylon or other form of polyamide. In the construction shown, the the button loop is welded to the web by means of a flat tab 4C and the upper and lower end portions of the web are provided with transverse welds 3, 5, to permit the elastomeric threads running back into the body of the web; as shown, the base of the button is narrower than the web, but if desired it can be made as wide as the web, in which case the transverse weld 3 is omitted; the upper end portion of the web can either be sewn or welded to a garment, or it can be provided with a hook fitting which is either attached to the web by welding it directly to the web or it is attached to the web by forming a loop in the web by folding the end portion of the web back on itself and welding to the back face of the web by the transverse weld 5. The welds may be made by dielectric heating apparatus and can be made simultaneously if desired. The end portion of the web below the button can be trimmed by the welding apparatus to leave a sealed edge from which surface material can be torn away or cut through to any desired shape by hot knife or wire. Instead of being attached to a garment, the suspender can be attached to a garter.
Patent GB-527695-A (GB)
Title: Improvements in or relating to lubricants
Filed: 1938-12-29
Abstract: 527,695. Lubricants. EVANS, E. A., and WAKEFIELD & CO., Ltd., C. C. Dec. 29, 1938, No. 37781. [Class 91] Extreme-pressure lubricants comprise a mineral oil and a little naphthalene tetrachloride. For example, 0.01-1.0 per cent. of tetrachloride is dissolved or suspended in a paraffinic lubricating oil.
Patent GB-1446001-A (GB)
Title: Twisted nematic liquid crystal display
IPC: G02F1/13
Filed: 1973-08-09
Abstract: 1446001 Liquid crystal compositions ING C OLIVETTI & C SpA 9 Aug 1973 [9 Aug 1972] 37847/73 Heading C4X A nematic composition for use in a twisted nematic electro-optic liquid crystal cell comprises 30-95% by weight of a dynamic scattering material consisting essentially of a mixture of 4-butyl, 4<SP>1</SP>-methoxy azoxybenzene and 4- butyl, 4<SP>1</SP>-ethoxybenzene and 70 to 5% by weight of an orientation type material consisting of one or more of p-(p-n-butoxybenzylidene)aminobenzonitrile, p - (p - n - hexylbenzylidene)- aminobenzonitrile, p - (p - ethoxybenzylidene)- aminobenzonitrile, and p - (p - octanoyloxybenzylidene)aminobenzonitrile. As explained, the low negative dielectric anisotropy of the dynamic scattering material is swamped by the large positive anisotropy of the orientation material to give a composition having an overall positive anisotropy whereby application of an electric field causes the nematic molecules to change from the twisted optically active configuration (in a suitably prepared cell) to a homotropic orientation parallel to the field direction. Reference has been directed by the Comptroller to Specifications 1,285,388 and 1,273,779.