baber/WOPTO huggingface dataset:
Patent GB-853177-A (GB)
Title: Amplifier circuit embodying a gas or vapour filled discharge tube
IPC: H01J17/32
Filed: 1957-12-02
Abstract: 853,177. Discharge tubes. SOC. D'ELECTRONIQUE ET D'AUTOMATISME. Dec. 2, 1957 [Nov. 3, 1956], No. 37508/57. Class 39(1). An amplifier circuit includes a gas or vapour filled discharge tube comprises at least a cathode, an anode and a control electrode within a single envelope in which is provided a beta-particle emitter to produce a permanent ionization of the gas or vapour atmosphere so that only a small potential difference is needed across the cathode and anode of the tube to maintain a discharge. The tube shown comprises an anode 2, control grid 3 and a thin (e.g. 25 microns) hollow nickel cylinder 5 carrying on its outer surface an emissive layer 4 of carbonates and/or nitrates and/or oxides of a good electron emitting element such as barium or strontium, and on its inner surface a thin layer or film 6 of a radio-isotope such as silicon 31, thallium 204 or carbon 14, which emits beta-particles. The nickel cylinder 5 protects the isotope from impact by ions in the discharge and a beta-particle shield may be inserted between the isotope and the envelope of the tube. With a filling of helium or neon the potential difference applied between the anode and cathode by a battery 7 may be lower than 24 volts ; with hydrogen, nitrogen, argon, klyston or xenon, lower than 12 volts, and with a metallic vapour such as mercury or cadmium, lower than 6 volts. In an alternative arrangement the radio-isotope is deposited on thin rods arranged evenly around the cathode and preferably within the cathode dark space, each film of isotope being protected from impact by ions by a thin nickel cylinder. A thermionic cathode may be used, with part at least of the beta-particle emitter material carried by the heater filament. The control grid 3 is negatively biased by a battery 10, an input signal is applied across the terminals 12 of an impedance 11, and an amplified signal is obtained at the terminals 9 of an impedance 8.
Patent GB-1109169-A (GB)
Title: Improvements in or relating to magnetic information-storage apparatus
Inventor: WOOD FRANK JOSEPH
IPC: G11C11/15
Filed: 1963-09-16
Abstract: 1,109,169. Magnetic data storage apparatus. PLESSEY-UK Ltd. 16 Sept., 1964 [16 Sept., 1963], No. 37807/64. Heading H3B. [Also in Division H1] A storage element consists of two magnetic layers having different coercivities and separated by a layer of non-magnetic metal to prevent diffusion of atoms between the magnetic layers. The non-magnetic layer may be chromium, gold or copper. Drive conductors disposed above the layers drive flux in the same direction through the layers, but on removing the drive field the flux direction in the lower coercivity layer is reversed to form a closed flux loop. The higher coercivity layer may be of pure nickel or nickel-cobalt and the lower coercivity layer of nickel-iron. A matrix may be constructed by etching Y-conductors in a zigzag formation on a copper-clad polyester sheet coated with anisotropic magnetic material, on which is deposited a thin layer of non-magnetic metal and a further magnetic layer. Digit and X-conductors are provided on opposite sides of a further copper-clad polyester sheet and the two sheets are superimposed. A copper ground plane is preferably provided. The digit conductor may be used for sensing or a further conductor may be provided. In the matrix the magnetic elements are formed in a zig-zag configuration by etching at the same time as the Y-conductors.
Patent GB-1151823-A (GB)
Title: Glow-Discharge Bimetallic-Contact Switches.
IPC: H01J5/32
Filed: 1967-08-17
Abstract: 1,151,823. Glass-metal seals. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 17 Aug. 1967 [20 Aug., 1966], No 37870/67. Heading C1M. [Also in Division H1] A method of manufacturing a glow-discharge bimetallic-contact switch comprises the steps of introducing a bimetallic strip electrode and a couhterelectrode into a glass envelope 7, heating an open part 8 of the envelope 7 through which extend the supply conductors 3, 4, 5, 6 for the electrodes 1, 2 to close the open part and to seal the electrodes 1, 2 to the wall 8 of the envelope 7, and, during this heating, cooling the bimetallic electrode to inhibit distortion thereof. As shown, both electrodes 1, 2 are bimetallic. The cooling is effected by inserting a pipe 9 into the envelope 7 such that the electrodes 1, 2 fit into the bore of pipe 9, and passing an inert gas such as nitrogen down the pipe bore, the gas being conducted away through outlets 10 in the wall of pipe 9. After the sealing process, pipe 9 and envelope 7 are separated and filled with gas. In another embodiment the gas supply pipe 9 is arranged inside the bore of a gas outlet pipe. The switch may be used for starting fluorescent tubes. The purpose of the cooling is to avoid changes in the gap setting between the electrodes due to heat reaching the bimetal electrode during the heat sealing.
Patent GB-1153742-A (GB)
Title: Machine Tool with a Device for the Accurate Control of the Feed of a Cutting Tool or Work Support
IPC: B23Q15/00
Filed: 1966-08-25
Abstract: 1,153,742. Controlling the feed of tool or work. MASCHINENFABRIK HEID A.G. 25 Aug., 1966 [25 Aug., 1965], No. 38260/66. Headings B3B and B3T. In a machine tool having a cross-slide 2 and a longitudinal slide 3 means are provided for precisely controlling and terminating the feed movement of a tool or work support which comprises two control drums 11, 21 for each slide providing respectively a fast feed movement and a slow feed movement, one complete revolution of drum 11 effecting the full traverse of a slide and drum 21 effecting several rotations during the movement of the slide. The drums are driven through gearing 10 and 27 respectively from a drive shaft 4 and each drum carries a plurality of cam discs 12 to 15 and 22 to 25 respectively. In operation, a selector switch P is actuated which selects a feed traverse determined by corresponding cam discs, e.g. 12 and 22 on the respective drums. The tool or work support is moved rapidly by the drum 11 for a distance determined by the cam disc 12, whereafter a switch 20 is actuated and clutch 5 is disengaged to terminate the rapid feed movement and a clutch 6 is engaged to initiate the slow feed movement controlled by the cam disc 22 on the drum 21, whereby a continuous feed movement is obtained. After a predetermined traverse at the slow feed rate, determined by the cam disc 22, a switch 20 associated therewith is actuated, whereby the clutch 6 is disengaged and a magnetic brake 8 applied so as to accurately terminate the feed motion of the tool or work support.
Patent GB-865005-A (GB)
Title: Attachment box holders for sewing machine carrying cases
IPC: D05B77/00
Filed: 1959-11-11
Abstract: 865,005. Sewing machine cases. SINGER MANUFACTURING CO. Nov. 11, 1959 [Nov. 12, 1958], No. 38336/59. Class 52(1). A sewing machine carrying case comprises top, front, back and side panels 16, 21, 22, 18 with spacer block 26 through which is fixed latch 23, extending between the front and back panels at the bottom of the side panel. Elastic tape 42 secured to the side panel near the top-by means of block 43 and releasably near the bottom by eyelet 44 and pin 48 holds attachment box 57 in position against bar 36 and inside L-shaped strip 32. Specification 775,257 is referred to.
Patent GB-883384-A (GB)
Title: Improvements in or relating to electrical contact elements
Inventor: CRAMPTON CECIL GEORGE
IPC: H01H11/06
Filed: 1956-12-18
Abstract: 883,384. Brush holders for dynamo-electric machines. NOBRAC CARBON Ltd. March 18, 1958 [Dec. 18, 1956], No. 38544/56. Class 35. [Also in Group XXXVII] A carbon or metal brush, e.g. for a small dynamo-electric machine, or switch contact, is held in a resilient, bifurcated, arm by the bent ends of the furcations. As shown in Fig. 2 the brush has slots 3 and the arm has a kink 7 in addition to the bent ends 6. Alternatively to the shape shown, the arm may be straight, or may be shaped to bring its free end in line with the brush's vertical axis. Alternatively to the kink 7 a strip between the furcations may be bent against and over the end of the brush. In the arrangement shown in Fig. 7, the brush 1 is cylindrical and a central strip 10 of the arm 5 is bent to engage a helical groove or thread 12. In this case the ends of the furcations have side projections bent down at 13. In the Provisional Specification it is stated that the furcations may be corrugated to grip the brush slots tightly.
Patent GB-1117096-A (GB)
Title: Combustion apparatus for purifying internal combustion engine exhaust gases
Inventor: SOLTAY JOHN PETER
IPC: F01N3/26
Filed: 1964-09-22
Abstract: 1,117,096. Purifying exhaust gases. JOSEPH LUCAS (INDUSTRIES) Ltd. Sept. 9, 1965 [Sept. 22, 1964], No.38548/64. Heading F1B. An exhaust after burner 10 comprises an elongated chamber into which project the perforated ends 14 of exhaust pipes 12, the chamber wall carrying an igniter 15. The perforations 14 in the pipes 12 project the exhaust gases transversely of the chamber 10. The igniter may be constructed as described in Specification 1,114,256.
Patent GB-1072997-A (GB)
Title: Method for use in the manufacture of cast articles
Inventor: RASBACH OTMAR
IPC: C04B28/06
Filed: 1965-09-09
Abstract: 1,072,997. Slip casting. JASBA-KERAMIKFABRIKEN, JAKOB SCHWADERLAPP KOMM. GES. Sept. 9, 1965, No. 38564/65. Heading B5A. A suspension of particles, e.g. an aqueous ceramic slip, is applied under pressure to the inside of a filter mould 3 of porous material mounted within a closed vessel 1, to which a liquid at a lower pressure and miscible with the liquid constituent of the suspension, e.g. water, is supplied from containers 10 and pipes 6 under the control of valves 7 and taps 15. The slip is fed from a container 11 and via a valve 13 to the level of an overflow 12, and pistons 24, 21 are then urged downwardly to force the water through the mould and into the space 2 which may contain sand or gravel. The pressure differential between the inside and outside of the mould is preferably controlled by adjusting the taps 15 which control water backflow from the space 2. This differential may be low initially and becoming greater as the thickness of the cast article builds up. For separating the article from the mould, water &c. may be forced through the mould from the outside. The porous material of the mould may comprise cement with kieselguhr, a porous filler.
Patent GB-1517195-A (GB)
Title: Plastics moulding formulation
IPC: C08L51/00
Filed: 1975-09-19
Abstract: 1517195 Floor tile moulding compositions GAF CORP 19 Sept 1975 [31 Dec 1974] 38568/75 Heading C3V An asbestos-free moulding composition comprises a resin, an organic fibrous filler, and a particulate filler of particle size #20 Á which acts to disperse the fibrous filler throughout the resin. Typical formulations consist of vinyl chloride polymer optionally containing such other polymers as nitrile rubber and poly-alphamethyl styrene, polyester fibres and calcium carbonate together with conventional plasticizers, stabilizers, &c.
Patent GB-1009826-A (GB)
Title: Molding process
IPC: B29C67/00
Filed: 1963-10-01
Abstract: 1,009,826. Moulding thermoplastic materials. MONSANTO CO. Oct. 1, 1963 [Oct. 4, 1962], No. 38700/63. Heading B5A. A method of moulding flat thermoplastic fabrics into articles of three-dimensional form by pressing between heated mould surfaces includes the step of impregnating the fabric with superheated steam. The fabric may be sprayed or padded with water, preheated for, e.g. 5 seconds in an open mould, and then the mould closed for 20 to 90 seconds. The mould temperature is 275-400‹ F. Alternatively steam may be injected into the fabric while it is being moulded. The fabrics may be knitted, woven or non-woven, and may comprise fibres of acrylics, modacrylics, polyesters and polyamides, either used separately or in blends with wool, cotton, linen or rayon. Articles which may be made include hats, toys, shoe tops, brassieres, furniture and automobile upholstery.
Patent GB-852569-A (GB)
Title: Process for halogenating polymers and products so produced
IPC: C08F8/20
Filed: 1958-12-02
Abstract: A high density crystalline olefin polymer is halogenated in a solvent to obtain a partially halogenated polymer containing up to 20% halogen, the solution cooled to precipitate this halogenated polymer, and the halogenation of the precipitated polymer continued with the polymer dispersed in the solvent.  Ethylene and propylene are specified olefins, and chlorine the specified halogen.  Carbon tetrachloride and tetrachloroethane are preferred solvents and gaseous chlorine the halogenating agent.
Patent GB-1470139-A (GB)
Title: Air outlet device for a ceiling-mounted air distributing  installation
IPC: F24F13/072
Filed: 1975-09-25
Abstract: 1470139 Ventilators TROX GmbH Gebr 25 Sept 1975 [5 Oct 1974] 39273/75 Heading F4V A ceiling mounted slot diffuser comprises an elongate housing having a longitudinal outlet slot in its lower wall, air inlet openings 2 in the upper wall, and cold and warm air portions, the or each cold air portion C containing an air flow deflecting member 8 which co-operates with the housing lower wall to effect an approximately horizontal cold air outflow direction through the slot, the or each warm air portion B containing no deflection member, and a closure member common to the portions B and C and movable from a first position in which it closes the openings 2 of portion(s) B and opens the openings 2 of portion(s) C to a second position in which it closes the openings 2 of portion(s) C and opens the openings 2 of portion(s) B. In the form shown, the closure member is an apertured slide plate 5 having air directing nozzles associated with the openings 6 therein. The or each deflecting member 8 is a flap pivotally mounted on one of the side walls of the housing. The length of the or each warm air portion along the housing is between <SP>1</SP>/ 10  and ¢ of the total length of one warm and one cold portion.
Patent GB-1498191-A (GB)
Title: Pressure cookers
IPC: F16J13/04
Filed: 1975-09-05
Abstract: 1498191 Pressure cooker CHICKEN & FOOD DISTRIBUTORS Ltd 5 Sept 1975 [10 Sept 1974] 39436/74 Heading F2P A pressure cooker comprises an open topped kettle 11 for containing food, a closure lid assembly 12 and clamping means for urging the lid into sealing engagement with the top of the kettle, the lower surface 33 of the lid being continuous to form an impenetrable closure barrier for food contained therein and the clamping means being connected to the lid remote from the lower continuous surface and wherein the kettle has an annular flange 14 to support it in a heated container. The lid is preferably supported pivotally for horizontal movement on a vertical post 13 secured to the kettle and a cross beam 17 extends pivotally in cantilever manner from the post 13 and supports the lid therebeneath. The supporting and clamping means includes a vertical threaded shaft 26 passing through and threadedly engaging the beam 17 and is connected at its lower end to the lid 27 by a thrust bearing assembly 29 housed in a recess in the upper surface of the lid, the arrangement being such that the lid can be raised or lowered relative to the beam by appropriate rotation of the head wheel 28. A catch assembly 21 may be provided having a lug 22 engaging a recess 24 bolted to the kettle 11 at flange 14 to allow horizontal movement in the horizontal plane until the lid occupies an in-register position overlying the top of the kettle, the catch assembly 21 additionally prevents vertical movement of beam 17. A groove 34 may be provided in the lower continuous surface 33 of the lid to locate a resilient sealing member.
Patent GB-1001455-A (GB)
Title: Process for the manufacture of amorphous rubbery ethylene/propylene copolymers having improved properties
IPC: C08F8/50
Filed: 1962-10-19
Abstract: An amorphous, rubbery ethylene/propylene copolymer of reduced viscosity less than 1 is manufactured by heating at 260 DEG  to 420 DEG  C. an amorphous rubbery ethylene/propylene copolymer of reduced viscosity greater than 1, the heating being in the absence of air or oxidizing substances.
Patent GB-1088668-A (GB)
Title: Improvements relating to pleasure craft for use on water
IPC: B63B35/44
Filed: 1964-09-30
Abstract: 1,088,668. Pleasure craft; aircraft. E. G. FISHER and J. W. G. PETERS. Dec. 9, 1965 [Sept. 30, 1964], No. 39828/64. Headings B7A and B7W. A pleasure craft comprises a buoyant body or hull 1 that resembles a conventional torpedo and carries a hollow rectangular column 11 whereon a passenger-carrying wing-unit 9 is slidably mounted, counterweights 18 being lodged within said column and connected to the wing-unit by cables 19, which pass over pins 20 at the uppermost end of the column. The wing- unit has an aerofoil shape so that when the hull 1 is driven by a propeller 2 the wing-unit can be made to rise up the column 11. Control surfaces 5, 6 and 15 on the hull and the wing-unit, respectively, are operated from within a passenger well 10 in the wing-unit. The propeller 2 is driven by a power unit e.g. an electric motor, I.C. engine or steam engine, lodged in the hull 1.
Patent GB-946942-A (GB)
Title: Improvements relating to luggage racks
IPC: B61D37/00
Filed: 1960-11-19
Abstract: 946,942. Vehicle luggage racks. AUSTER Ltd., and W. W. SMALL. Feb. 19, 1962 [Feb. 27, 1961], No. 39846/60. Heading B7J. A luggage rack comprises a luggage support in the form of a plastic lattice network 8, Fig. 1, mounted in a carrier frame 1, and a larger frame 2 parallel to the frame 1 and connected thereto by cross-bars 3, 4, of which the bars 3 are formed in closed loops fixable at 6, 7 to the interior of a vehicle roof. The invention is characterized in that the marginal portions of the network 8, Fig. 5, which may have a peripheral bead are clamped between upper and lower jaw sections 11, 12 of the frame 1, drawn together by screws 13, and captive nuts 15. As shown, the opposed jaws at one side are shorter than at the other side to leave a gap 22 and the opposing jaws have complementary shapes and the network is kinked at the gap. The cross-bars 3 and 4 pass through slots in the frames and are secured therein by screws. Decorative plastic strips 35, 35a are let into the frame 1 and the cross-bars.
Patent GB-1312687-A (GB)
Title: Plastics material cask
IPC: B65D43/00
Filed: 1970-04-27
Abstract: 1312687 Container closures; plastics casks MAUSER KG 27 April 1970 [21 Feb 1970] 39859/72 Divided out of 1312686 Headings B8D and B8T The subject-matter of this Specification is substantially the same as that described in Specification 1,312,686 but the claims are concerned with the plastics container.
Patent GB-876445-A (GB)
Title: Process for the manufacture of 1, 3-diolefins
IPC: C07C1/24
Filed: 1958-12-10
Abstract: 1 : 3-Diolefins are prepared by removing the elements of water from the corresponding 1 : 3-dioxanes using a catalyst prepared from minerals and/or slags and phosphoric and/or pyrophosphoric acid, the minerals or slags containing alkali metal and/or alkaline earth metal and/or aluminium compounds and also containing 5-80% wt. of SiO2. The mineral may be kieselguhr, kaolin, bentonite or mixtures thereof and the slag may be from a phosphorus furnace; SiO2 gel and/or graphite and/or Al2O3 may be added to the catalyst starting material. The catalyst is preferably stirred to a homogenous pasty mass, pre-dried and heated for 1-4 hrs. at 300-600 DEG C. prior to granulation and activation with superheated steam.  The catalyst is regenerated at 400-600 DEG C. using an air/nitrogen mixture (2-5% vol. O2) followed by activation with superheated steam.  The process may be used to obtain isoprene from 4:4-dimethyl-1:3-dioxane or from a mixture of the latter with 2-methylbutene-1-ol-4; or a mixture of the specified dioxane with tertiary butanol gives a mixture of isoprene with isobutylene.  A mixture of dioxane and alcohol may be in general converted to a diolefin/olefin mixture.  In examples, catalysts are prepared from (1) kieselguhr (specified analysis)/pyrophosphoric acid; (2) kieselguhr/graphite/H3PO4Al2O3 or SiO2 gel (5) kaolin or bentonite/H3PO4; (6) kaolin/kieselguhr/pyrophosphoric acid; (8) phosphorus furnace slag (specified analysis)/H3PO4.ALSO:1 : 3-Diolefins are prepared by removing the elements of water from the corresponding 1 : 3-dioxanes using a catalyst prepared from minerals and/or slags and phosphoric and/or pyrophosphoric acid, the minerals or slags containing alkali metal and/or alkaline earth metal and/or aluminium compounds, and also p  containing 5-80% wt. of SiO2.  The mineral may be kieselguhr, kaolin, bentonite or mixtures thereof and the slag may be from a phosphorus furnace; SiO2 gel and/or graphite and/or Al2O3 may be added to the catalyst starting material.  The calalyst is preferably stirred to a homogeneous pasty mass, pre-dried and heated for 1-4 hrs. at 300-600 DEG C. prior to granulation and activation with superheated steam.  The catalyst is regenerated at 400-600 DEG C. using an air/nitrogen mixture (2-5% vol. O2) followed by activation with superheated steam.  The process may be used to obtain isoprene from 4:4-dimethyl-1 : 3-dioxane or from a mixture of the latter with 2-methylbutene-1-ol-4; or a mixture of the specified dioxane with tertiary butanol gives a mixture of isoprene with isobutylene.  A mixture of dioxane and alcohol may be in general converted to a diolefin/olefin mixture.  In examples, catalysts are prepared from (1) kieselguhr (specified analysis)/pyrophosphoric acid; (2) kieselguhr/graphite/H3PO4/Al2O3 or SiO2 gel; (5) kaolin or bentonite/H3PO4; (6) kaolin/kieselguhr/pyrophosphoric acid; (8) phosphorus furnace slag (specified analysis)/H3PO4.