baber/WOPTO huggingface dataset:
Patent GB-1015561-A (GB)
IPC: H01F6/06
Filed: 1964-06-17
Abstract: <PICT:1015561/C6-C7/1> An inductance coil is formed by depositing a superconductive alloy, e.g. NbZr or Nb3Sn, layer 2 on a ceramic former 1, removing a helical strip by e.g. a photoengraving method, and then depositing an insulating layer of e.g. silica.  The alloy may be deposited from a gaseous mixture of NbCl5 and Sn Cl4 and the silica by decomposition of ethyl silicate.  Part of the layer 2 is left uncovered to provide a connection 4 with the next metal layer 5. In a modification, Fig. 2 (not shown), a coil is built up from a stack of annular ceramic plates having metal and insulating layers on both sides.
Patent GB-414909-A (GB)
Title: Improvements relating to sliding sash type windows
IPC: E05D13/00
Filed: 1933-09-11
Abstract: 414,909. Pivoted - sliding sashes. COUSINARD, A., 31, Rue de BÚcon, Courbevoie, Seine, France. Sept. 11, 1933, No. 25162. Convention date, Sept. 13, 1932. [Class 20 (iii).] Pivoted-sliding sashes are carried on cylindrical heads 3 eccentrically mounted on plates 2 secured between two connected sliding members 1. The housing on the sash for the heads 3 consists of two parts secured by integral lugs 6. The sashes have edge grooves engaged by spring-pressed channels 9. The springs 11, 13 are positioned against brackets 15 and engage C-shaped members which guide the channels. The Specification as open to inspection under Sect. 91 comprises also pivoted spring-pressed tumblers to which the sash cords are connected and which, on breakage of the cord, automatically engage racks in the frame to hold the sash. This subject-matter does not appear in the Specification as accepted.
Patent GB-160742-A (GB)
Title: Improvements relating to safety controlling apparatus for electrically driven vehicles
IPC: B60L3/00
Filed: 1920-09-01
Abstract: 160,742. Farmer, C. C. March 26, 1920, [Convention date]. Controllers, brake devices for.-A safety device for use on electric railway or tramway vehicles consists of a switch 8 held closed by pneumatic pressure in a cylinder 18, an electromagnet 14 controlling the admission of air from a reservoir 24 to the cylinder 18, and electric connections through a contact 5 on the motor controller and also through contacts 2 fitted to the car brakevalve. The arrangement is such that when the brake valve is in the " power-on " position, the magnet 14 remains energized and the switch 8 remains closed. Should the trolley 15 leave the line, the magnet 14 will fail, and the switch 18 will open, thus cutting off the power. To restore the power it is necessary to turn the motor controller back to the " off " position in which the contact 5 completes circuit to the magnet 14. If the brake has been applied it is also necessary to return the brake valve to the ' power-on ' position. To obtain current in an emergency, with brakes on, a pushbutton switch 20 is provided in shunt to the contact 2.
Patent GB-838130-A (GB)
Title: Image intensifiers
IPC: H05B33/12
Filed: 1957-08-09
Abstract: 838,130. Electroluminescent image intensifiers. STANDARD TELEPHONES & CABLES Ltd. Aug. 9, 1957 [Aug. 30, 1956], No. 25265/57. Class 39(1). An image intensifier for pictures containing colour comprises a transparent self-supporting plate 1, a first transparent electrically conductive film 2, a composite layer containing at least three kinds of electroluminescent materials 3, 4, 5 adapted to luminesce in separate colours and arranged in the layer in a definite pattern, an opaque layer, a layer of photoconductive material 6, a second transparent conductive film 7, a voltage source 8, and means such as the slits 9 and transparent prisms 11 for selectively directing components of incident light of different wavelength to those parts of the photoconductive layer 6 which overlay those portions of the composite layer which luminesce in a colour of these wavelength components. Preferably the three materials 3, 4, 5 are arranged in repeating groups of long narrow parallel strips.
Patent GB-455670-A (GB)
Title: Improvements in or relating to electric fuses
IPC: H01H85/42
Filed: 1935-09-12
Abstract: 455,670. Fusible cut-outs. WESTING- HOUSE ELECTRIC & MANUFACTURING CO., East Pittsburg, U.S.A.-(Assignees of Smith, L. R. ; 1237, Richmond Street, Pittsburg, U.S.A.) Sept. 12, 1935, No. 25352. Convention date, Sept. 18, 1934. [Class 38 (i)] An expulsion fuse includes an annular passage confining the arc, and means for causing lateral movement of the arc to ensure its contact with the gas-evolving material composing the walls of the passage. In the particular construction shown a fusible element 25 having narrower portions 33, 35 is secured to the contact cap 3 at the end of a tube 1 and to a collar 9 at the upper end of a surrounding tube 13. The collar is connected by a coil 23 with the other contact in the form of a second collar 5. The reduced portion 33 is of smaller cross section than the other. The field produced by the current in the coil causes lateral displacement of any arcs formed by the melting of the fusible element in the annular passage and therefore promotes evolution of gas by movement of the arc along the inner wall formed by the tube 1.
Patent GB-1407374-A (GB)
Title: Carton blank and a carton made therefrom
IPC: B65D5/02
Filed: 1973-05-29
Abstract: 1407374 Cartons D WOESTE 29 May 1973 [24 Jan 1973] 25427/73 Heading B8P A tubular cardboard carton having each wall of double thickness has recesses 9 in one wall so that when lugs 7 are inserted through slits 8 to maintain the carton in its erected form each lug 7 lies in one of the recesses 9 and does not obstruct the interior of the carton. Closure flaps 3, 5 are provided on the ends of some of the walls and a lug 4 on a closure flap 3 lies in a recess 9 in one of the walls. A tab 20 in one of the walls is pressed into an aperture 19 in the lug 4 to retain the closure flaps. The carton may alternatively be made of strong paper, carton, or corrugated cardboard.
Patent GB-949907-A (GB)
Title: Turbo coupling
Filed: 1962-07-03
Abstract: 949,907. Hydrodynamic couplings. C. SCHULER - VOITH, M. VOITH, H. W. SCHWEPPENHAUSER, and C. KNAPP, [trading as VOITH-GETRIEBE KOMM. GES.]. July 3, 1962 [July 4, 1961], No. 25507/62. Heading F2C. In a turbo coupling the filling of which is variable during operation, the filling ducts enter the working chamber at the radially inner part of its boundary wall, at which point a discontinuity in the boundary wall produces a region relieved of vortex flow the radial extent of which is less than 0.017 times the outer diameter of the working chamber. The fluid may be introduced into the working circuit between the impeller and the runner and the discontinuity may be produced by a baffle attached to the exit of the runner and projecting into the chamber a distance 0.01 times the outer diameter of the chamber. Alternatively, the discontinuity may be produced by a step in the boundary wall, the inner radius of the runner at its exit being greater than the inner radius of the impeller at its entrance, or the discontinuity may be produced by a change in direction of the radially inner boundary wall of the working chamber. As shown, the fluid enters the circuit through a port 8a formed between the impeller 3 and runner 2, the part 40 of the runner directly in front of the port 8a in the direction of flow is displaced radially outwardly of the adjacent part 41 of the wall of the impeller 3 by an amount 42, and is at an angle α to the part 41, thus producing the required region free from vortex flow. The arrangement facilitates filling of the coupling at high slip, and in order to increase this effect further the filling duct may be inclined at an acute angle to the part 41 of the impeller.
Patent GB-1015296-A (GB)
Title: Stabilisation of polyvinyl chloride
Inventor: DADSON LAWRENCE MICHAEL
IPC: C08K5/372
Filed: 1963-06-27
Abstract: Vinyl chloride polymers are stabilized by incorporating therein a zinc salt of a fatty acid containing 8 to 20 carbon atoms, a calcium or magnesium salt of a fatty acid containing 8 to 20 carbon atoms, and a substituted dialkyl sulphide.  Specified polymers are polyvinyl chloride and copolymers of vinyl chloride with vinyl acetate or vinylidene chloride.  The polymers may be admixed with other polymers, e.g. butadiene/acrylonitrile copolymers.  Specified acids are 2-ethylhexoic, capric, nonanoic, myristic, palmitic and particularly lauric and stearic acids. Specified substituted dialkyl sulphides are di-b -hydroxyethyl sulphide and esters thereof, b -hydroxyethyl dodecyl sulphide and salts and esters of thio-dialkanoic acids, e.g. dilauryl thiodipropionate, distearyl thiodibutyrate, zinc thiodipropionate and calcium thiodipropionate. The compositions may also comprise other stabilizers, e.g. a -methyl glucoside, epoxidized soya bean oil and polymeric epoxides, pigments, fillers, plasticizers and lubricants.  Examples describe compositions comprising polyvinyl chloride, diisooctyl phthalate, zinc laurate, calcium laurate and dilauryl thiodipropionate.
Patent GB-868817-A (GB)
Title: Improvements in or relating to adjustable shelving
Inventor: WALTERS JOHN WALLACE
IPC: A47B57/10
Filed: 1958-08-09
Abstract: 868,817. Adjustable shelves. AUSTIN WALTERS & SON Ltd. Oct. 29, 1959 [Aug. 9, 1958], No. 25653/58. Class 52(1). An adjustable shelf assembly for pallets comprises channel shaped stanchions 10 and 11 connected by 12, 13 and 21 and frame 17 fixed by bracket 15 at 16 so as to form one or more rectangular bays. Inwardly directed brackets 25 on rear stanchion 11 support projection 33 of removable shelf 26 and L-shaped brackets 23 support the also L-shaped lug 31 of the shelf. The shelf may or may not be covered with a sheet material.
Patent GB-532621-A (GB)
Title: Improvements in apparatus comprising gas-cooled high-pressure metal-vapour electric discharge lamps
IPC: H01J61/52
Filed: 1939-09-13
Abstract: 532,621. Discharge lamps. GENERAL ELECTRIC CO., Ltd., FRANCIS, V. J., and WILSON, G. H. Sept. 13, 1939, No. 25741. [Class 39 (i)] In a gas-cooled H.P.M.V. lamp such as are used for optical projection or street lighting, the lamp is carried by the sealing stems 2 from the cooling-gas supply tubes 3 or from members supporting the tubes. Each sealing stem abuts against one end of a tube 3 and is secured to the tube by extensions of the leads 4 ; these are arranged in a circle where they leave the stem 2 and are clamped around the tube 3 by a ring 6. A flexible air pipe 7 is connected to each tube, which has outlets 8 for the cooling air which flows within tubes 9 over the lamp ; rubber stoppers 10 close the ends of the tubes 9. Arms 12 of clamps 11; act as supply leads. In a modification the lamp is supported directly from the tubes 9, the sealing stems entering the rubber stoppers. If the lamp is run with its axis horizontal a separate cooling air supply may be directed on to any part of the envelope which tends to overheat.
Patent GB-404762-A (GB)
Title: Improvements in or relating to presses for wearing apparel
IPC: A47G25/72
Filed: 1932-09-16
Abstract: 404,762. Garment presses. HICKLEY, H. W., 43, Hillier Road, London. Sept. 16, 1932, No. 25792. [Class 141.] A garment press comprises a flat base board 1 and a normally convexly curved upper board 2 of plywood or steel, hinged to the base and adapted to engage the garment progressively. The curvature of the board 2 is obtained by spring ties 8 and a bridge 7. The board 2, which may be detachable, is operated by means of a handle 15, cams 16, 17, and lateral projections 18. The cams may be on either board. A roller 22 at one end of the press facilitates movement of the garment during the application of pressure. A hinged support 21 may be provided.
Patent GB-827560-A (GB)
Title: An improved chuck, more particularly for machine tools
IPC: B23B31/177
Filed: 1957-08-15
Abstract: 827,560. Chucks. BERTHOLD, L. Aug. 15, 1957 [Oct. 19, 1956], No. 25799/57. Class 83 (3). In a chuck, jaws 5 are closed by compressionsprings 3 acting on a plate 2 integral with a tapered-collar 4 which engages the jaws; and the jaws are opened by oil-pressure admitted through a duct 8 to a cylinder 9, in a non- rotatable cylinder 6, to move a piston 7 engaging pins 10, which engage the thrust-plate 2. A sleeve 11, mounted on the cylinder 6, engages a shoulder 12 of the chuck body 1 to provide an abutment for the cylinder when pressurized; and a number of spring-urged pins 16, engaging the machine headstock, operate, when the pressure is released, to displace the cylinder so that the sleeve 11 is clear of the shoulder 12 during rotation of the chuck. The cylinder- and-sleeve assembly is slidably enclosed by a retaining ring 13. The ring 13 is attached to a headstock (not shown), by screws 14, and the body 1 is attached by screws 17 to a base 18 secured by screws 19 to the spindle 20.
Patent GB-1472834-A (GB)
Title: Distillation process for purification of triaryl phosphate esters
IPC: C07F9/12
Filed: 1975-06-17
Abstract: 1472834 Purifying triaryl phosphates FMC CORP 17 June 1975 [20 June 1974] 25808/75 Heading C2P Triaryl phosphates, prepared by phosphorylation of phenol, C 1-4  alkyl substituted phenols, or mixtures of these, are purified by the following distillation process: (a) the crude esters are first flash distilled at 220-320 C. and 2-10 mm. Hg pressure to remove at least 90% as distillate, (b) the distillate from (a) is fractionally distilled in a column operating at 250- 300 C. and 4-10 mm. Hg pressure at the base and at 60-200 C. and 2-4 mm. Hg pressure at the head. The product recovered from the base of the column contains not more than 100 p.p.m., preferably below 50 p.p.m., of free and/or unreacted phenols. The flash distillation is preferably carried out at 250-310 C. and 5-8 mm. Hg pressure. The process is particularly applied to mixed isopropylphenyl/ phenyl, mixed sec- or t-butyl phenyl/phenyl, cresyl diphenyl, tricresyl, and trixylyl phosphates.
Patent GB-367310-A (GB)
Title: Improvements in or relating to electron discharge tubes
IPC: H01J19/00
Filed: 1931-09-15
Abstract: 367,310. Thermionic valves. FRITZ, E. A., 12th Street, Milwaukee, Wisconsin, U.S.A. Sept. 15, 1931, No. 25841. Convention date, Sept. 20, 1930. Drawings to Specification. [Class 39 (i).] Secondary emission from a grid, due to the deposition thereon of electron-emitting substances such as alkaline-earth oxides, is reduced by coating it with tantalum oxide.
Patent GB-203914-A (GB)
Title: Improvements in supports for artificial nests
IPC: A01K31/16
Filed: 1922-09-26
Abstract: 203,914. Stevenson, A. Sept. 26, 1922. Nests.-A ring of stout wire a secured to a bird-cage by hooks or nails is provided with metal points or spikes attached thereto by solder or other method : the ring is expanded a little and an artificial nest pressed into it. As the ring ccntracts the spikes grip the sides of the nest firmly and thus pravent it from being upset.
Patent GB-779903-A (GB)
Title: Improvements in or relating to hydraulic piston-type adjustment means for the adjustment of a liquid-controlled gear, more particularly for motor vehicles
IPC: F16H61/46
Filed: 1954-09-07
Abstract: 779,903. Variable speed hydrostatic transmissions. EBERT, H. Sept. 7, 1954 [Sept. 16, 1953], No. 25955/54. Class 69 (2). In an hydraulic transmission gear comprising a swash-plate pump 23 driving a swash-plate motor 24, the oscillating frame 23a of the pump is controlled by a piston and cylinder device having both main and auxiliary pistons whereby the gear can be controlled within two predetermined ranges. Movement of the main and auxiliary pistons 2, 4 in their cylinder 1 is controlled by a slide member 8 and a valve member 14, the latter being controlled by a centrifugal governor 15. Cams 13, 20 linked together and turned by a handle 20<SP>1</SP> act on the members 8, 14 and prevent an unintentional changeover from one range to another due to fall in engine speed. A control bush 14b is driven by a gear 14c at a speed proportional to that of the driving shaft 23b and the governor 15 thereon controls the member 14 which is also influenced by a spring 16 and the cam 20. Liquid from a pump 19 is supplied to the bush 14b and passes via pipes 9, 10, 11 to a bush 8b enclosing the member 8. When, on movement of members 8 and 14, liquid is supplied via pipes 18, 11 and 5, the pistons 2 and 4 move together to the right-hand end of cylinder 1 (Fig. 1) and the frame 23a is moved by a link 22 to give a 1: 1 drive. If the speed decreases, the spring 16 moves the member 14 towards the left and liquid reaches the cylinder 1, via pipes 18, 10 and 6 and the pistons 2 and 4 move to the left until the piston 4 abuts the cylinder head 1a The frame 23a is now in the position shown in Fig. 1 and the pump 23 delivers no liquid. For reverse drive, cams 13 and 20 are turned and the member 8 is moved to the left and liquid reaches the cylinder 1 via pipes 18, 11 and 7. The piston 2 then moves up to a stop 4a, the piston 4 being held stationary, and the frame 23a is moved in the opposite direction to drive the motor 24 in reverse. In a modification, the end 1a of the cylinder is replaced by an additional piston on the rod 3 sliding in a part of the cylinder 1 extending towards the link 22. In a further modification (Fig. 4) the main piston is fixed on a rotatable shaft 1c and the cylinder 3 is movable to effect adjustment of the transmission ratio. The wall 27 of the moving cylinder has cam slots 27a which move links connected to the swash-plates 23a, 24a of the pump and motor.
Patent GB-1340112-A (GB)
Title: Copolymers
IPC: C08K5/14
Filed: 1971-04-19
Abstract: 1340112 Olefin terpolymer elastomers E I DU PONT DE NEMOURS & CO 19 April 1971 [2 April 1970] 26043/71 Headings C3P and C3Q Branched elastomeric EPDM polymers having less than 30% gel, a Williams plasticity of 60 to 100 and an inherent viscosity of at least 2À2 at less than 30% gel, may be prepared by mixing an EPDM polymer having 0À1 to 2 gram-moles of carbon to carbon double bonds per kilogram of elastomer and a Williams plasticity of 20 to 60 with a promoter selected from 0À00125 to 0À00780 gram atoms of sulphur, an organic polysulphide yielding 0À00125 to 0À00780 gram atoms of sulphur and 0À0005 to 0À003 gram equivalents of an organic peroxide or hydroperoxide, or mixtures thereof, per 100 grams of copolymer, and heating. Preferred EPDM polymers are ethylene/propylene/1,4-hexadiene copolymers. Preferred organic polysulphides are 4,4<SP>1</SP> - dithiodimorpholine and dipentamethylene thiuram hexasulphide. Preferred peroxides are t-butyl perbenzoate, dicumyl peroxide and 2,5- dimethyl - 2,5 - di - t - butylperoxy - hexane and -hexyne. The process may be effected batchwise or continuously, preferably in the absence of processing oils, and the products compounded with diene elastomers, e.g. natural rubber, styrene/butadiene rubber, polyisoprene and neoprene, to give ozone resistant vulcanizable compositions. In examples ethylene/propylene/ 1,4-hexadiene copolymers prepared by polymerizing in tetrachloroethylene in the presence of hydrogen and catalysts formed from vanadium tetrachloride or oxychloride and diisobutyl aluminium chloride are modified by mixing and heating with (1) sulphur, (2) 2,5-dimethyl- 2,5 - di - t - butylperoxy - hexane and (3) 4,4<SP>1</SP>-dithiodimorpholine, the products being compounded with natural rubber and vulcanized.
Patent GB-496479-A (GB)
Title: Means for forced commutation of current in rectifiers or other static converters
IPC: H02M7/06
Filed: 1938-02-22
Abstract: 496,479. Converting. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Feb. 22, 1938, No. 26059. Convention date, Feb. 27, 1937. Divided application. [Class 38 (ii)] In a converting arrangement in which commutation is effected by means of a transition anode fed by a condenser, constancy of commutating voltage despite variations in load is effected by employing several transition anodes 41-44 and associated condensers 31-34, means being provided for releasing a required number of the anodes in dependence on load. The condensers 31-34 may be of graduated size.
Patent GB-901134-A (GB)
Title: Sliding clasp fastener
IPC: A44B19/12
Filed: 1960-07-27
Abstract: 901,134. Wire. RIES G.m.b.H. BEKLEIDUNGSVERSCHLUSSFABRIK. July 27, 1960 [Aug. 3, 1959], No. 26061/60. Class 83 (2). [Also in Group XXV] A wire for incorporation in a sliding clasp fastener is wound into generally helical form and includes widened parts 4 which determine the pitch of the coils and smaller widened portions 3 which form interengaging elements for the fastener.
Patent GB-867032-A (GB)
Title: Improvements in and relating to electro-acoustic transducers
Inventor: MINTON MERTON
IPC: H04R23/00
Filed: 1956-08-27
Abstract: 867,032. Telephone instruments. COSMOCORD Ltd. July 30, 1957 [Aug. 27, 1956], No. 26090/56. Class 40 (4). In a transducer utilizing either the magnetoresistive effect or the Hall effect, a plate-like conductor of semi-conductive material is movable in a non-uniform magnetic field. In a microphone utilizing the magneto-resistive effect. Figs. 1 and 2, the diaphragm 2 carries a spindle 6 supporting a plurality of conductive elements 1 each of which consists of a thin strip of indium antimonide. The elements 1 are disposed in a magnetic field produced by a permanent or electro-magnet 4 which has magnetically-conductive prongs 7 projecting from its pole faces. The arrangement is such that any movement of the diaphragm causes one half of the elements 1 to move into a stronger magnetic field and the other half to move into a weaker magnetic field. The elements of each half 8, Fig. 2, are connected in series and the two serially-connected sets of elements are themselves connected in series by way of the primary winding of an output transformer 10. A power source 11 is connected to give a " push-pull " arrangement of the elements as shown. A circuit for utilizing the Hall effect is given, Fig. 3 (not shown). Reference has been directed by the Comptroller to Specification 801,966.
Patent GB-488519-A (GB)
Title: Preparations for protection from insects
IPC: A01N37/10
Filed: 1937-01-07
Abstract: Modifications of the insect repellents described in the parent Specification contain water-soluble alkaline earth metal or magnesium salts and organic solvents together with cinnamic alcohol or its ethers or esters or benzyl benzoate.  Double compounds are probably formed.ALSO:Insect repellents comprising a water-soluble alkaline earth metal salt, an organic solvent, and coumarin or phthalic acid diethyl ester according to the parent Specification, are modified by replacing the latter organic compounds by cinnamic alcohol or its esters or ethers or by benzyl benzoate.  Double compounds are formed as before.
Patent GB-689781-A (GB)
Title: Improvements in or relating to radio beacons
Inventor: COLCHESTER CHRISTOPHER DERING
IPC: G01S1/08
Filed: 1949-10-11
Abstract: 689,781. Electric selective signalling. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. July 31, 1950 [Oct. 11, 1949], No. 26138/49. Class 40 (i) [Also in Group XL(c)] In a radio beacon system, the signal received at any point about the beacon comprises an initial long pulse and a train of shorter pulses, the number and timing of the shorter pulses providing on a binary scale a measure of the bearing of the point from the beacon. At the receiver, the initial long pulse charges condenser SC so ensuring that only subsequent pulses of comparable magnitude actuate the relay winding A to cause relay contacts A1 to close. Relay B is in an oscillatory condition so that when actuated its contacts 81 open and close continuously thus sampling the pulses generated by contacts A1 and passing them to a storage and measuring circuit comprising a parallel condenser-resistance circuit DC-DR1 in series with a resistance-shunted parallel-tuned circuit DOC. The pulses passed by contacts A1, B1 charge the measuring circuit to a value which then decays according to an exponential law modified by an oscillatory component due to the circuit portion DOC. At the end of the pulse train a timing relay C operates to close contacts Cl and charge condenser HC in accordance with the charge remaining in the measuring circuit. The potential across the condenser HC is measured upon a voltmeter giving a direct reading of bear ing from the beacon.