baber/WOPTO huggingface dataset:
Patent GB-1190417-A (GB)
Title: Production of Magnetic Recording Media
IPC: C09D5/23
Filed: 1967-07-26
Abstract: 1,190,417. Magnetic structures. BADISCHE ANILIN- & SODA-FABRIK A.G. 26 July, 1967 [27 July, 1966], No. 34314/67. Heading H1H. A magnetic recording media comprises a dispersion of ferromagnetic particles in a binder on a base, the binder being a block copolymer of butadiene and styrene and/or α-methylstyrene which has at least 3 blocks and has styrene or methylstyrene blocks at its ends. The copolymer preferably contains 60-95% butadiene and 5-25% methylstyrene or 10- 40% styrene, and may have 3,5,7, or 9 blocks. The ferromagnetic particles, e.g. acicular γ- Fe 2 O 3 , may be dispersed in a solution of the copolymer in tetrahydrofuran, toluene, butyl acetate, or mixtures thereof, in a ball mill. The mixture may include dispersing agents, lubricants, and antistatics, e.g. stearic acid, linseed oil fatty acid, modified rosin, and oleic acid. The dispersion is then applied to the base and dried at 70-150‹ C. The base may be a sheet, tape, or wire, of p.v.c., polyethylene terephthalate, cellulose triacetate, paper, or metal, and may have an intermediate layer of a vinylidene chloride-acrylonitrile copolymer or polyester.
Patent GB-1293323-A (GB)
Title: Coin selector for parking meters
Inventor: WOKOCK O
IPC: G07F17/24
Filed: 1971-07-22
Abstract: 1293323 Parking meters KIENZLE APPARATE GmbH 22 July 1971 [25 July 1970] 34383/71 Heading G4V A combined coin testing and time setting device, particularly intended for use in parking meters, comprises means for effecting a thickness test and a diameter test arranged such that if both tests are satisfied the time setting means is actuated and if one or both tests indicate counterfeit the time setting means is rendered inoperative. A coin 14, when inserted, disengages a blocking portion 15 of lever 11 from the path of an abutment 10 on coin carrier 3, the coin carrier thereby being freed to carry the coin into contact with pin 18 of a sensing lever 17. The consequent amount of rotation of lever 17 about pivot 16, and hence of a disc 22 via gear 20, depends on the diameter of the coin. Disc 22 carries adjustable setting means 27 which correspond in their peripheral positioning along slot 26 to various different diameter coins acceptable by the device and in their radial positioning to the amount of time purchased by such coins. If a coin of acceptable diameter is inserted, disc 22 is rotated to bring the respective setting means 27 to a position where nose 46 of a second pivoted sensing lever 41, released by cam 40, engages setting means pin 47. Such engagement prevents return of disc 22 to its initial position under the action of spring 23 and a time setting lever 30 is thereby freed by removal of an abutment (24), Fig. 1 (not shown), on disc 22 from the path of a pin 25. When pin 25 is freed, lever 30 pivots anti-clockwise about pivot 31 until pin 25 contacts the outer radial end of the setting means 27 engaged by lever 41, thereby setting the time mechanism, see Figs. 3 and 4 (not reproduced). In addition to the diameter test, a plate 60, Fig. 5 and Fig. 7 (not shown), swing- able on a rod 63, has a nose 64 which engages a coin in carrier 3. If the coin has a central aperture or is too thin, plate 60 swings under the action of a spring (not shown) sufficiently to disengage lever 41 from disc 22 (assuming the coin to be of an acceptable diameter) by cooperation between a nose on plate 60 and a nose 66 on lever 41. In a modification, Fig. 8 (not shown), plate 60 is U-shaped and nose 64 is adjustable. All coins inserted are transported to a coin box.
Patent GB-902345-A (GB)
Title: Improvements in equipment for forging crank-shafts
IPC: B21K1/08
Filed: 1960-10-07
Abstract: 902,345. Forging crank-shafts. SCHLOEMANN A.G. Oct. 7, 1960 [Oct. 8, 1959], No. 34408/60. Addition to 812,496. Class 83 (4). In a crank-shaft forging apparatus as described in the parent Specification, the transversely movable punch slide 13 carries a device 31 for moving a packing piece 32 into the centre of the device and allowing it to fall between the webs 26b of a crank throw 26a which has just been forged. The device 31 is a hook engageable with an eyelet 31a in a wedge-shaped packing- piece 32 which upon movement of the slide to the left is disposed directly above the crank throw. The hook is then released manually to allow the packing-piece to fall between the crank webs 26a and support them during subsequent movement of the crank-shaft out of the bottom die 25 by an hydraulically-actuated ejector 27. In another embodiment, Fig. 2, the packing piece is two wedge-shaped parts 40, 41 which close together when the lower part 41 strikes the crank-pin, Fig. 3 (not shown). Pointed locking-screws 47 can then be tightened on to the web 26b to prevent disengagement of the packing-piece.
Patent GB-1235576-A (GB)
Title: Improved lamp filament using stranded wire
Inventor: WALTER JOHN LEE
IPC: H01K1/14
Filed: 1969-07-08
Abstract: 1,235,576. Drawing. GENERAL ELECTRIC CO. 8 July, 1969, No. 34453/69. Heading B3P. [Also in Division H1] A tungsten filament for an electric incandescent lamp is formed by winding a plurality of outer strands (12) around a central strand (11) and drawing the bundle through dies to reduce the diameter and cause the central strand to assume a polygonal shape and each outer strand to develop planar side and inner surfaces (15), (16) in contact with adjacent outer strands and the central strand respectively. The tungsten may be doped with compounds containing aluminium, potassium and silicon.
Patent GB-282680-A (GB)
Title: Improvements in steering wheels with elastic arms
IPC: B62D1/08
Filed: 1927-12-20
Abstract: 282,680. Trabet, L. L. Dec. 22, 1926, [Convention date]. Hand-wheels. - In steering-wheels for motor. vehicles &c. having single or laminated flexibleblade arms 1, the ends of the arms slide radially in slots 6, 6<1> formed in bent stirrups 5, 5<1>, which are autogenously welded together at their edges 7, 7<1> and to the metal core, 4 of the rim J, in order to distribut the stresses from the arms. The edges of the arms 1 are cut to form lugs 3, 3<1>, which coact with the walls 8, 8<1> of the stirrups to prevent their withdrawal.
Patent GB-1181297-A (GB)
Title: Semiconductor Devices having Pressure Contacts Employed therein
IPC: H01L23/48
Filed: 1967-07-26
Abstract: 1,181,297. Semi-conductor devices. SIEMENS A.G. 26 July, 1967 [28 July, 1966], No. 34474/67. Heading H1K. During the application of a pressure contact to an electrode 42 on a semi-conductor wafer 40, a terminal member 5, 51 is pressed into contact with the electrode 42 so that the member 5, 51 is deformed, elastically or plastically, thereby increasing its area of contact with the electrode 42. Pressure maintenance means, e.g. dished springs 81, maintain the pressure when the arrangement is enclosed within a housing 91, 92. As shown the terminal member comprises a wire loop or spiral 51 of Ag, Cu or an alloy thereof, having a lead-out portion 5. The inital cross-section of the wire may be circular, polygonal or concave. Alternatively the terminal member may be an annealed stamping, or an elastic structure comprising a silicone rubber core having a flexible metal coating either electrodeposited on the core or forming a hollow shell filled with the core material. The device shown comprises a thyristor, and has a control electrode 43 with a lead-out conductor 6 welded thereto. The invention is also applicable to injunction transistors. The wafer 40, e.g. of Si, Ge or a III-V compound, is mounted on a Mo disc 41, which in turn is mounted on a threaded Cu base 1 through a ductile disc 3, e.g. of Ag.
Patent GB-862934-A (GB)
Title: Improvements in and relating to billiard table tops
Inventor: TUCKER REGINALD HENRY
IPC: A63D15/02
Filed: 1958-10-28
Abstract: 862,934. Levelling tables. HORTON, RENO Ltd. Oct. 20, 1959 [Oct. 28, 1958], No. 34535/58. Class 52(3). A billiard table top 1 is permanently attached by lost-motion devices 4, 5 to the ends of two longitudinally-extending battens 2 adapted to rest on an ordinary table and each provided with two or more screw-and-nut adjusters 9, 10 acting between the batten and the top 1 to level the latter.
Patent GB-955780-A (GB)
Title: Improvements relating to flexible closures
IPC: A45C13/10
Filed: 1962-09-10
Abstract: 955,780. Strip fasteners. FLEXIGRIP Ltd. Sept. 10, 1962 [Oct. 2, 1961], No. 34538/62. Heading E2S. A structure of plastics material from which resilient rib and groove closure fasteners can be detached is made up of two end strips 67a and a number of intermediate strips 67, each end strip having at one side thereof a thickened marginal portion 71a having rib and groove elements 72, 73 and all of the intermediate strips having at both sides thereof similar thickened marginal portions 70, 71, the strips being joined together by co-operation of the rib and groove elements to form the structure and the structure being divisible along each of the intermediate strips whereby rib and groove closure fasteners comprising joined parts of adjacent strips can be detached from the structure. Each of the intermediate strips has a row of perforations 75 and when it is desired to separate complete fasteners from the structure a section of the required length is cut from the structure and the fasteners are then torn from the section along the perforations 75. If fasteners of a standard length are required the structure can be perforated transversely so that sections of the standard length can be torn from it. Instead of the rib and groove elements facing in opposite directions as shown they can face in the same direction.
Patent GB-747700-A (GB)
Title: Improvements in and relating to lifting devices for invalids
IPC: A61G7/10
Filed: 1953-12-11
Abstract: 747,700. Lifting apparatus for invalids. CRAWSHAW, A. A. Dec. 10, 1954 [Dec. 11, 1953], No. 34597/53. Class 78 (3). Apparatus for handling invalids comprises a beam f supporting an invalid sling x and an operator's chair h, means being provided to allow the operator to increase the force exerted on the lever by his weight when he is occupying the chair. As shown, this means comprises a lever k which is provided with a handle y and a pedal m, and is connected to the beam through a chain o which is engaged alternately with projections n and j to produce a step-bystep lift. According to various modifications (not shown), the extra force is applied to the beam by a hooked lever engaging eyes on the floor or by a manual or power actuated winch mounted on bracket i and co-operating with a cable attached to beam f either directly or through a system of pulleys ; or by a winch mounted on chair h and co-operating with a cable attached to an eye on the floor. The fulcrum is supported on a stand c by telescoping tubes a, b which are secured to the bed frame d by a clamp e. Rotation of the beam about a vertical axis is permitted by an anti-friction bearing (not shown) between the bracket i and the tube b.
Patent GB-1430075-A (GB)
Title: Combined electrical switch and lock assembly
IPC: B60R25/00
Filed: 1972-07-25
Abstract: 1430075 Gear-box lock LUCAS ELECTRICAL CO Ltd 3 July 1973 [25 July 1972] 34685/72 Heading B7J [Also in Divisions E2 and H1] In a combined electrical switch and lock assembly, a cam member 15 carried by a rotor 13, rotated by a lock, operates locking elements 17, 18 engageable with the selector shaft 24 of the gear-box of a motor vehicle; the element 17 co-operates with a recess in the shaft when reverse gear is selected.
Patent GB-977964-A (GB)
Title: Pentafluorophenyl compounds and their manufacture
Inventor: BUXTON MICHAEL WILLIAM
IPC: C07C57/76
Filed: 1961-09-27
Abstract: The invention relates to compounds of the formula RCONH(CH2)2NR1R2, in which R is a pentafluorophenyl, a pentafluorophenylalkyl or a pentafluorophenylalkenyl group containing 6, 7 or 8 carbon atoms and R1 and R2, which may be the same or different, are alkyl groups of 1-3 carbon atoms.  The compounds are prepared by reacting the corresponding pentafluorophenyl carboxylic acid chloride with an ethylene diamine in a solvent, e.g. ether or benzene, suitably at atmospheric temperature.  Examples are given in which, by reaction with N-diethylethylene diamine, (1) pentafluorobenzoyl chloride yields N-diethyl-N1-(pentafluorobenzoyl) ethylene diamine; (2) pentafluorophenylacetyl chloride yields N-diethyl-N1-(pentafluorophenylacetyl) ethylene diamine; (3) a -(pentafluorophenyl) propionyl chloride yields N-diethyl-N1-(a -pentafluorophenylpropionyl ethylene diamine.  The hydrochlorides of the products of the examples are described.
Patent GB-335800-A (GB)
Title: Improvements relating to safety valves
IPC: F16K17/08
Filed: 1929-11-14
Abstract: 335,800. Norrie, L. F. Nov. 14, 1929. Safety valves.-The valve member 1 of a safety valve is provided with an overhanging lip 2 forming a reaction surface 3 for escaping steam and has a piston portion 6 co-operating with a cylindrical neck 7 in the casing 8. The valve member 1 is provided with a series of ports 9 in the lip 2 for by-passing the steam from the reaction face 3 when the valve approaches the closed position as described in Specification 318,457.
Patent GB-802850-A (GB)
Title: Headrest for aircraft ejection seats
IPC: B64D25/10
Filed: 1956-11-14
Abstract: 802,850. Ejection seats for aircraft. SVENSKA AEROPLAN A.B. Nov. 14, 1956 [Nov. 16, 1955], No. 34783/56. Class 4. In an ejection seat for aircraft which is provided with an adjustable headrest, the gun cylinder 4 carries a pair of fork-shaped brackets 7 which support an axle 10 for three interconnected arms 11, 12 and 13. The central arm 11 is connected through a link 14 to a lever 15 of the gun firing mechanism, the arm 12 is connected to a wire 16 operated by the pilot to serve as an auxiliary firing device and arm 13 is connected through a link 17 to arms 18 which are pivotally mounted at 19 in the brackets 7 and connected at 24 to the headrest 6. The brackets 7 support a housing 25 which contains a locking plunger 29 normally held in contact with a recess 31 in the forward face of an arm 32 integral with arms 18 whereby the arms and headrest are retained in the forwardly inclined position shown in the figures. To ensure rigidity of headrest 6, a link 37 connected to the headrest at 36 is loosely positioned within an aperture 39 in an extension 38 on arm 32 and the upper end of the link 37 engages a stop face 35 on housing 25. In flight the forwardly inclined position of the headrest positions the pilot's head for a clear view through a windscreen whereas during ejection it is necessary for him to sit in an upright position. The headrest is freed to permit this by screw and nut release mechanism operated by unrolling of the face blind 40 which frees plunger 29 from arm 32 thereby allowing arms 18 and headrest 6 to swing to a vertical position with link 37 freed from stop face 35. This movement fires the ejection gun through linkage 17, 13, 11 and 15. An alternative locking mechanism for the headrest is associated with the auxiliary firing device 16.
Patent GB-1249933-A (GB)
Title: Improvements in diffusion metallic coating method
IPC: C23C10/06
Filed: 1969-07-11
Abstract: 1,249,933. Coating metals and alloys by diffusion. GENERAL ELECTRIC CO. July 11, 1969 [Nov.29, 1968], No.34996/69. Headings C7A and C7F. A substrate of Fe, Ni or Co is coated by heating at 1600 to 2100F. in the presence of but out of contact with an alloy consisting of (per cent by wt) 50 to 70 Ti, 20 to 48 Al and 0À5 to 9 combined C 3  and a halide which may be a fluoride or chloride of ammonia or an alkali metal. An inert filler e.g. Al 2 O 3  may be present. The articles may be suspended in a container out of contact with the coating material. The substrate may be one of the following alloys (wt per cent): -
Patent GB-1394867-A (GB)
Title: Quick attachment electrical connector
IPC: H01R13/518
Filed: 1972-07-26
Abstract: 1394867 Latches SOCAPEX 26 July 1972 [30 July 1971] 35044/72 Heading E2A [Also in Division H2] A connector block having sockets is located in a frame 23 by cooperation of surfaces 27 28 with the edges 29, 30 of apertures in the frame. Surfaces 27, 28 are on wedge shaped portions 25, 26 moulded integrally with the block and flexible about an axis where they join the block. In one modification, Fig. 4 (not shown) the apertures are off-set, and in another modification Fig. 5 (not shown) the wedge shaped portions which may be triangular, flex about axes parallel with the direction of insertion of the block 1. In other constructions, not within the scope of the invention, one of the flexible wedge shaped portions is replaced by a fixed abutment engaging the top of frame 23 Figs. 1 and 5 (not shown) or the base of the frame in a case where it does not extend a long way down.
Patent GB-1005527-A (GB)
Title: Improvements relating to covers for vacuum cleaners
IPC: A47L9/00
Filed: 1964-08-27
Abstract: 1,005,527. Suction cleaners. G. HEYEK. Aug. 27, 1964 [Sept. 2, 1963], No. 35166/64. Heading A4F. A cover for a suction cleaner casing of the horizontal cylinder type comprises a single integral moulding 2 of plastics material which includes a spigot 3 for a flexible hose, a loop 4 (not shown) for suspending the cleaner, and a closure catch 5, and the cover is connected to the casing 1 by two hinge strips 6a and 6b (not shown), each being integrally moulded from plastics material with a runner 7, on which the casing 1 can slide, and which also constitutes a mounting for a wheel 9. Alternatively each hinge may be formed integral with a runner only or with a wheel mounting only.
Patent GB-893073-A (GB)
Title: Elastic yarns of vulcanized sulphochlorinated propylene/ethylene copolymers
IPC: D01F6/04
Filed: 1958-11-03
Abstract: An elastic yarn is produced by spinning a solution of a sulphochlorinated high molecular weight linear propylene/ethylene copolymer in an organic solvent, the solution containing one or more vulcanizing agents.  The solvent (and any coagulating agent derived from a coagulating bath, if used) is removed from the filaments thereby obtained and they are vulcanized at 125 DEG  to 170 DEG C. The copolymer preferably contains 30-80% of ethylene, has a molecular weight of 50,000-300,000, a sulphur content of 1-3% and a chloride content of 4-15%.  The concentration of the solution may be 3 to 20% and the solvent may be benzene, chlorobenzene or carbon tetrachloride.  In an example, a 7% solution in carbon tetrachloride, to which solution has been added (based on the weight of the copolymer) 40% of litharge, 2,5% of hydrogenated rosin and 0,25% of N-cyclohexyl-2-benzothiazol-sulphamide, of a sulphochlorinated ethylene/propylene copolymer containing 40% of ethylene, 1,9% of sulphur and 7,8% of chlorine, is wet spun at 15 DEG  to 40 DEG C. into a methanol coagulating bath.  The filaments thus produced are dried and vulcanized in an autoclave, with the aid of live steam, at 145 DEG C. for 30 minutes.  The yarns of the invention are more stable to oxygen, ozone, ultra violet light and weathering than are natural rubber yarns.
Patent GB-656294-A (GB)
Title: Improvements in and relating to direction finding indicating, control and like systems employing radiant wave energy
IPC: G01S13/34
Filed: 1947-12-31
Abstract: 656,294. Frequency measurements. GUANELLA, G. Dec. 31, 1947, No. 35288. Convention date, May 12, 1940. [Class 37] [Also in Groups XXXVIII and XL (c)] In a radio direction-finding system in which the direction a relative to the receiver of a transmitter radiating a frequency modulated carrier is determined by heterodyning in a detector the signals received at two spaced aerials to produce a beat frequency proportional to cos a (see Group XL (c)), means are described for producing a quantity which depends both in magnitude and sign on cos a, i.e. the magnitude of the quantity is proportional to the beat frequency and the sign of the quantity depends upon which of the two signals received has the greater instantaneous frequency. The cyclic variation of the transmitted frequency may be sinusoidal or linear, e.g. triangular or saw-tooth, the modulating frequency being constant. As shown in Fig. 4, the signal received by one aerial R12 is applied directly to detectors D11 and D12 and the signal received at the other aerial R11 is applied directly to detector D11 and through a 90 degree phase shifter NO to detector D12, so that the beat frequency outputs from D11 and D12 are in phase quadrature and these are applied to the field windings of a two-phase induction motor M10 driving a D.C. generator G12, the output from which has an amplitude proportional to the beat frequency and the polarity of the output being dependent on which of the signals received at R11 and R12 has the greater instantaneous frequency. In another embodiment, Fig. 5, the signal received at R11 is applied directly and through delay line d3 to detectors D1 and D3, respectively, and the signal received at R12 is applied directly and through delay line d1 to detectors D3 and D1 so that the beat frequency outputs f1 and f3 from detectors D1 and D3 are proportional to (t 0 +b/c cos a) and (t 0  - b/c cos a), where b is the spacing of the aerials R11 and R12, c is the velocity of electromagnetic waves and t 0  is the delay time of lines d1 and d3, which is arranged to be greater than b/c. The beat frequencies f 1 and f3 are applied to circuits HI and H3, Fig. 3 (not shown), of the type described in Specification 655,575, each of which produces an output D.C. voltage of amplitude proportional to the input frequency and the two outputs are applied to the two X plates of a cathode-ray tube J so that the magnitude and sign of the resultant deflection is proportional to the magnitude and sign of cos a. When the transmitter frequency is varied sinusoidally, the beat frequencies fluctuate at the modulation frequency and a trace is produced on the cathoderay tube having an amplitude proportional to cos a. A perpendicular pair of aerials R21, R22 are coupled to the Y plates of the cathode-ray tube through a similar circuit producing a deflection proportional in magnitude and sign to sin. a so that the angular position of the resultant spot or trace indicates the value of a.
Patent GB-1429576-A (GB)
Title: Housings for plug-in modules
IPC: H05K7/20
Filed: 1974-08-12
Abstract: 1429576 Component assemblies SIEMENS AG 12 Aug 1974 [27 Sept 1973] 35356/74 Heading H1R A housing 1 for plural plug-in modules incorporating electrical components providing electrical screening and heat dissipation is fabricated (Fig. 1) as a metallized unitary plastics moulding containing graphite; of parallelepipedal form open at one side and metallically coated by electrodeposition or admixture, with suspension rails 2 on top engageable with cooperating rails of an assembly system and secured by a screw in aperture 4. Interior grooves 3 of the housing accommodate plug-in printed circuit boards (not shown) carrying the components. -A printed circuit board (not shown) is attached to the rear for connection of the plugin boards to the system.  In a modification (Fig. 2, not shown) internal integral partitions subdivide the enclosed space.