baber/WOPTO huggingface dataset:
Patent GB-453538-A (GB)
Title: Improvements in or relating to artificial lines for use on radio and other high frequencies
IPC: H03H5/00
Filed: 1935-03-16
Abstract: 453,538. Impedance networks. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, and BRAILSFORD, J. D., 14, Bolan Street, Battersea, both in London, and O'NEILL, R. F., Lindorel, Fourth Avenue, Chelmsford. March 16, 1935, No. 8275. [Classes 40 (iii) and 40 (v)] An artificial line, particularly for loading the anode circuits of frequency-changers, comprises an inductive coil 1, Fig. 2, and a metal member 4, which provides the major portion of the distributed capacity of the coil 1, with means for varying the inductance per unit length and /or the distributed capacity per unit length of the coil. The cylinder 4 is split at 4a and a screw 8 serves to increase the diameter of the cylinder 4. Alternatively, the split cylinder 4 has turned-up ends 4b, Fig. 3, and the coil has tapered end-pieces 14, 15, adapted to be relatively moved in an axial direction bv a screw-knob 17 so that the split cylinder can be expanded or contracted. In these two modifications, the distributed capacity is varied. In Fig. 6, the coil 1 is mounted rigidly with a split cylinder 25 to slide on a tube 18 having an iron-dust core 21 and an embracing di-electric cylinder 22, so that axial movement of the coil varies both the inductance and the capacity of the coil. Specification 450,520 is referred to.
Patent GB-292694-A (GB)
Title: Improvements in or relating to photographic film-packs
IPC: G03B17/34
Filed: 1927-03-25
Abstract: 292,694. Storr, B. V., and Ilford, Ltd. March 25, 1927. Change-boxes, selfcontained. - A film pack case is formed from two interfitting parts each formed of a bent metal blank, the seams at the corners being rendered light-tight by opaque paper liners. The front part, Fig. 3, comprises an apertured front wall 22 and an end wall 34, while the back part, Fig. 4, comprises a rear wall 10 and opposite end wall 16, side members 30, 15 being formed in each case. Each part is provided with locking lugs 28, 18 formed by extensions of the end wall bent at right angles 'thereto to engage and overlie the other part when the two parts are slid into engagement as shown in Fig. 9. The end wall 34 is provided with a notch 24 for the passage of the film tabs. The seams in the upper part are rendered light-tight by a paper liner 36, Fig. 3, secured by means of tabs 38, and the lower seams by a paper apron 40 having a flap 42, Fig. 9, which passes through the exposure opening and is then pasted to the apron to hold it in place. The apron is also provided with tabs 44, 46 to seal the seams. The pack may be supported on a resilient pressure plate as described in Specification 271,913 with the tabs placed in the recess 24. A light trap may be provided formed of a sheet of opaque paper 54, Figs. 7 and 9, slotted at 56 for the passage of the film tabs, folded at or near the slot, and provided with a strip of velvet 58 on the inner side of the paper. Small pieces of card 60, or a continuous strip of card when the fold is not at the slot 56, act as a stop for the edges of the films when they are pulled round to the back of the pack.
Patent GB-253641-A (GB)
Title: Improvements in and relating to apparatus particularly adapted for use in the cementation of iron or iron alloys
IPC: C23C8/22
Filed: 1925-03-30
Abstract: 253,641. Fisher, W. H., and Chambers, P. March 30, 1925. Cementation.-In apparatus for the cementation of iron or iron alloys by means of hydrocarbons, the latter is introduced into the furnace 1 by a nozzle 20 at the upper end of an annular member 17 mounted in the cap f of the retort chamber b so that the hydrocarbon is not vaporized before it reaches the chamber b in which the iron &c. is placed. The chamber b is heated bv the introduction of gas into the space 3 formed between the chamber b and the inner wall of the furnace 1. The iron &c. to be treated is placed on a table 9 which is supported by a member 10 having openings 11 and is provided with a central opening 12 through which is inserted a thermo-couple 28. The hydrocarbon is fed to the nozzle 20 by a pipe 22 from a tank 24, the amount being regulated by cooks 25, 26. The hydrocarbon used may be organic oils such as pine tar or other pyroligneous products, fish or vegetable oil. When it is desired to remove the iron &c. from the chamber b, gas is admitted from pipes 27 into the space below the table 9 and thus into the chamber, and then the cover f is removed.
Patent GB-272643-A (GB)
Title: Improvements in or relating to stoppers for hot water bottles, water beds, cushions or the like
IPC: A61F7/08
Filed: 1926-12-28
Abstract: 272,643. Miller, A. Dec. 28, 1926. Mattresses; cushions. - A stopper socket for water beds, cushions, and the like, comprises a body 1 of square section, with cylindrical end portions grooved at 2, whereby rotation of the socket in the rubber, when the stopper 4 is screwed down, is avoided.
Patent GB-125799-A (GB)
Title: Improvements in and relating to Fire-lighting by means of Gas.
Inventor: RYDER STANLEY
IPC: F24B15/00
Filed: 1918-05-24
Abstract: 125,799. Ryder, S. May 24, 1918. Lighting fires. - A gas-burner adapted to be thrust between the bars of a rate for lighting fires therein consists of a perforated. close-ended tube, with a gas nipple and an air-supply opening j, which may have a regulating-sleeve i. A handle, which may be perforated as shown in Fig. 14, is fitted on the gas-supply tube, and a nozzle r is provided for the attachment of the flexible tube. The front end of the tube may be closed by a screw plug c, as shown in Fig. 6. Fig. 15 shows a modified construction of gas nipple. A foot u may be fitted to rest on the bottom of the grate. The tube may be cast with the perforations and air inlet. Reference has been directed by the Comptroller to Specifications 6939/93 and 4139/09.
Patent GB-865951-A (GB)
Title: Improvements in or relating to plate heat exchangers
IPC: F28F3/08
Filed: 1958-03-18
Abstract: 865,951. Plate-type heat exchangers. SEPARATOR A. B. March, 18, 1958 [March 18, 11957], No. 8638/58. Class 64(3) In a heat exchanger in which each of a plurality of plates 5 is suspended on a carrying bar 2 by a bridge piece 1 extending across a U-shaped recess 6 in the plate through which the bar extends, a hole 8 is formed in the plate on each side of the recess 6, the bridge piece engaging the upper edge of the hole and being retained in position relative to the plate either by so displacing a portion 7 of the plate in the vicinity of each hole 8 as shown in Figs. I and 2, that the ends of the bridge piece may be received between the plate proper and the displaced portion or by displacing a portion of the bridge piece 1 at each end thereof so that the plate is held between the main and displaced portions of the bridge piece as shown in Fig. 5.
Patent GB-193720-A (GB)
Title: Improvements in and relating to heels for boots and shoes
IPC: A43B21/42
Filed: 1922-06-17
Abstract: 193,720. Ling, C. June 17, 1922. No Patent granted (Sealing fee not paid). Protectors, securing.-The top lift of a shoe heal is fastened' to the permanent part of the heel by snap fasteners of special construction, parts of which also serve as wearing-studs. The detachable lift, Fig. 4, is provided with studs E, Fig. 9, having bifurcated ends passing through the lift and engaging metal caps D, the lower surfaces of which serve as wearing-studs, Fig. 7. The female part of the snap fastener consists of a member A, Fig. 8, containing a split ring (not shown) and a tubular part which engages a cupped disc B. The parts are shown assembled in Fig. 7.
Patent GB-128239-A (GB)
Title: Improvements in or relating to the Treatment of Solid Paraffins.
Inventor: ELBORNE WILLIAM
IPC: C10G73/40
Filed: 1917-06-16
Abstract: 128,239. Elborne, W. June 16, 1917 Explosives. - Powdered granulated or finely divided paraffin for use in smoke and vapour producing compositions is obtained by subjecting paraffin to a grinding, crushing, or disintegrating operation in the presence of an alcohol such as ethyl alcohol, methyl alcohol (wood spirit), or methylated spirit. The alcohol is afterwards removed by a current of air and is recovered.
Patent GB-140790-A (GB)
Title: Bearing metals
IPC: C22C11/02
Filed: 1920-03-24
Abstract: 140,790. Metallbank und Metallurgische Ges. Jan. 18, 1917, [Convention date]. Alloys.-A bearing-metal alloy consists of pure or soft lead with not more than about 5 per cent of barium. Small quantities of other metals such as calcium, sodium, magnesium, aluminium, copper, zinc, tin, bismuth, cadmium, mercury, and manganese may be added. The Specification refers also to an alloy containing 76 per cent of tin, 5 per cent of copper, 12 per cent of antimony and 7 per cent of lead, and also to other alloys of lead containing antimony or tin or both, with or without other metals.
Patent GB-1504183-A (GB)
Title: Alkaline galvanic cells
IPC: H01M4/02
Filed: 1975-03-04
Abstract: 1504183 Relief valves for alkaline cells UNION CARBIDE CORP 4 March 1975 [18 March 1974 (3)] 8831/75 Heading H1B An alkaline cell, e.g. Zb-MnO 2 , has a vent 24 closed by a valve member 25 or in a modification (Fig. 2, not shown), a ball, and a hydrophobic membrane 27 of, e.g., polyethylene polypropylene, P.T.F.E. or P.T.F.C.E. The anode may consist of Zn particles and a polyacrylamide as described in Specification 1,504,184.
Patent GB-1007714-A (GB)
Title: Improvements in or relating to the support in ships of tanks designed to carry low temperature liquids
Inventor: LEATHARD JOHN FREDERICK
IPC: B63B25/12
Filed: 1961-03-10
Abstract: 1,007,714. Carrying liquefied gases. CONCH INTERNATIONAL METHANE Ltd. March 12, 1962 [March 10, 1961], No. 8871/61. Heading B7A. A stabilizing arrangement for a ship's cargo tank for low temperature liquids comprises at least two substantially horizontal keys 24 (Fig. 2) secured to the inner bottom 12 of the ship so as to connect the tank bottom 10 to the ship's structure, the two keys extending across the tank bottom from the central axis of the tank and at an angle to one another, each key has upwardly-converging faces 28 that cooperate with corresponding sides 35 of a keyway or channel 34 in the underside of the tank bottom whereby lateral restraint is provided without prevention of lateral thermal movement of the tank in the direction of the length of the key. The key 24 is constituted by heat insulating blocks 27 supported on timber legs 30 received by bearers 31 on the ship's inner bottom 12. By the use of balldollies 25, 26 the lateral expansion of the tank is permitted whilst providing the desired lateral restraint. The tank weight is borne by stools 11 (Fig. 1) each carrying a ball-dolly 14 on a heat insulating block 19 supported by timber legs 20 received in bearers 23 on the inner bottom plating 12.
Patent GB-565997-A (GB)
Title: Landscape and like recording devices
IPC: B43L13/18
Filed: 1943-06-03
Abstract: 565,997. Sketching-appliances. McDONALD, J. June 3, 1943, No. 8928. [Class 11] In a device for landscape sketching, a sighting - member 8 and a pencil - carrying member 12 are pivoted for vertical movement on a support 6, which can turn about a vertical axis, the members 8, 12 being connected by a link 14 and counterbalanced by a spring 15. The sighting-member 8 has an eyepiece 10 and a foresight 9. The pencil is outwardly spring- pressed and moves over paper carried by a member 16, which is formed as part of the surface of a cylinder.
Patent GB-1171887-A (GB)
Title: Potentiometer.
IPC: H01C10/42
Filed: 1968-02-23
Abstract: 1,171,887. Variable resistors. TRW Inc. 23 Feb., 1968 [8 Aug., 1967], No. 9026/68. Heading H1S. A movable contact 82, having arms 84, 86 respectively engaging the linear resistance element 14 and contact strip 16, is carried on a member 68 engaging the operating leadscrew 18 and made of resilient material so as to disengage from the leadscrew when rotation thereof is continued after the member 68 reaches the end of the casing. A hole in the contact 82 is located on a boss (not shown) projecting from the member 68. Terminal strips 52 and (56) respectively connected to the ends of the resistance element and to the contact strip 16 are sealed into conical bosses projecting from the casing. The wire wound, or film, resistance element is carried on a rod 48 of plastics ceramic or insulated metal.
Patent GB-1320115-A (GB)
Title: Notepad
IPC: G09F23/10
Filed: 1972-02-28
Abstract: 1320115 Advertising devices RITTER KG 28 Feb 1972 [21 July 1971] 9031/72 Heading G5C [Also in Division B6] A note pad comprises a stack of sheets each having a straight edge which edges are stuck together to provide tear-off sheets and wherein at least one substantially smooth face 1 defined by edge regions of the sheets has screen printed, e.g. advertising, matter thereon. All such faces may have advertising matter thereon. A hole 3 bored through at least some of the sheets in the pad may be used to accommodate a writing instrument. The pad may be in the shape of a cube or parallelepipedon. The sheets may have curved edges as well as a straight edge.
Patent GB-366334-A (GB)
Title: A process and apparatus for the production of closing seams and the like
IPC: D05B21/00
Filed: 1931-03-25
Abstract: 366,334. Sewing-machines. SOMMER, E., 3, Wilhelmstrasse, Aue, Erzgebirge, Germany. March 25, 1931, No. 9180. Convention date, April 2, 1930. [Class 112.] Work guides.-A mechanical guide with slots cut to conform to the shape of a collar guides the work holder and releases the collar at the end of the sewing operation. The collar 9 is held on the plate 10 by the cover 32. The plate has arms 8 with rollers 7 engaging and travelling in slots 6 in a templet 4, these slots being the shape of the collar. The work pushplate 10 is moved by an arm 11 engaging projections 16, 17, 18 in an endless chain 15 moving over pulleys 14. At the end of the sewing operation, the projection 17 trips a lever 25 to release the plate 10 which is pulled to initial position by a weight 24, the rollers 7 travelling down straight slots 35 in the templets 4.
Patent GB-946581-A (GB)
Title: Improvements in or relating to electric control systems
Inventor: HILL WILLIAM FRANK
IPC: H02P7/292
Filed: 1959-03-17
Abstract: 946,581. Automatic speed control. LANCASHIRE DYNAMO ELECTRONIC PRODUCTS Ltd. March 17,1960 [March 17, 1959], No.9221/59. Heading G3R. [Also in Division H2] In a speed control system for an electric motor M a transistor Tr1 is arranged to generate driving pulses at twice mains frequency under the control of rectifiers MR8 and MR9, the amplitude of the pulses being regulated by a transistor Tr2 in accordance with an error signal obtained by comparing the rectified output from a tachometer generator G with a reference voltage derived from a Zener diode Zn1. The driving pulses are transmitted to transistors Tr3, Tr4 and Tr5 and associated delay circuits whereby pulses having a phase delay with respect to the mains voltage are delivered from transistor Tr5, which phase delay depends on the error or deviation. These phase controlled pulses are amplified by a further transistor Tr6 feeding pulse transformers T1, T2 whose primary windings are connected in parallel so as to produce two separate coincident current pulses for firing two full-wave connected silicon controlled rectifiers Sr1 and Sr2 supplying direct current to the armature circuit or motor M. Each rectifier Sr1 and Sr2 is thus fired with a variable delay so that the current supplied to the motor is regulated by the amplitude of the pulses occurring at the collector of Tr1.
Patent GB-1388965-A (GB)
Title: Nuclear fuel for high temperature gas-cooled reactors
IPC: G21C3/62
Filed: 1973-02-26
Abstract: 1388965 Nuclear fuel UNITED STATES ATOMIC ENERGY COMMISSION 26 Feb 1973 [16 March 1972] 9396/73 Heading G6C The core of a carbon-coated nuclear fuel particle comprises an oxide of a fissile metal and a metal carbide in thermodynamic equilibrium with the carbon coating, so that the partial pressure of CO plus CO 2  within the particle is less than 10<SP>(6.8-13300/T‹K)</SP> atmospheres at temperatures above 1350‹ K. The oxide may be UO 2  or PnO 2  and the carbide a monocarbide or dicarbide of U, Pn, or Th. U238 or Th232 may be present as fertile material. The case may be prepared as described in United States Specification 3,290,122 or by the addition of finely divided carbon to the sol in the preparation of oxide spheroids by the sol-gel process. The core may be coated in succession with layers of porous carbon, dense pyrolytic graphite, silicon carbide, and a final layer of dense pyrolytic graphite. The coated particles may be bonded together in a graphite matrix and used in a high temperature gas cooled reactor.
Patent GB-404509-A (GB)
Title: Improvements in or relating to the manufacture of cutting blades
IPC: B21D53/64
Filed: 1933-03-29
Abstract: 404,509. Making cutlery and like blades. RICHARDS BROS. & SONS, Ltd., 202, Broomhall Street, Sheffield, and RICHARTZ, J., 6, Kronen Strasse, Solingen, Germany. March 29, 1933, No. 9481. [Classes 83 (ii) and 83 (iv).] Forging-dies.-Cutting blades are manufactured by a method in which sets of two or more blades are forged roughly to shape along the length of a strip, pairs of blanks being arranged with their cutting edges adjacent, and blades of the required contour being subsequently separated by stamping from the forged strip. Hot or cold strip metal 20 is passed between dies 1, 2 each having raised portions 5, and guiding projections 3 for the strip at each comer, these projections also limiting the relative movement of the dies. The strip is prevented from longitudinal expansion by ridges 7 which form recesses 15 in the strip. The strip is forged on both sides to form a pair of blades simultaneously with their cutting edges joined at the centre 11. A nail groove 17 and wording may be subsequently stamped on the forged strip, the blades then being cut from the strip as in Fig. 8.
Patent GB-924766-A (GB)
Title: Microwave signal detector
Inventor: WARD ALAN WILLIAM
IPC: H03D9/02
Filed: 1961-03-15
Abstract: 924,766. Impedance networks. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 22, 1962 [March 15, 1961], No. 9508/61. Class 40 (8). [Also in Group XXXVI] A microwave signal detector comprises a matched waveguide termination 1 containing energy absorbing material 2 and a probe 3 connected to a crystal detector 4, the output current from which gives a measure of the energy entering the termination. A resistor 6 is arranged between coaxial conductors 7, 9 whereby the rectified R.F. detector output is developed radially between the conductors. A lossy iron-dust core 10 is similarly arranged between conductors 8, 9 to absorb stray microwave energy and prevent its entry to the coaxial line 5. In an alternative construction (Fig. 2), the signal detector is provided with a resonant cavity 11 tunable by a movable plunger 12. In either construction of the detector a frequency reducing device (not shown) may be inserted before the crystal detector and its output applied to the crystal detector through a transistorized amplifier. The output from the line 5 may be indicated by a spot galvanometer.
Patent GB-957403-A (GB)
Title: Centrifugal apparatus for separating solids
IPC: B04C3/00
Filed: 1963-03-11
Abstract: 957,403. Centrifugal separators. V. RAKOWSKY. March 11, 1963 [Oct. 30, 1962], No. 9571/63. Heading B2P. In a vessel 1 for separating particles of different specific gravity in a mixture and having a tangential inlet 2 near one end for the introduction of liquid separating medium, an axial discharge 4 at the same end for light particles, and, at the opposite end, a peripheral discharge 3 for heavy particles and a feedpipe 5 for the axial introduction of material to be treated, the feedpipe is extended into the vessel and is provided at its end with a baffle having a face 6 which is substantially at right angles to the feedpipe axis and has a width of ¢-3 inches. As shown, the baffle is formed by an end portion of the feedpipe, which may be hollow, and its width is given by the thickness of the feedpipe. The separating medium, which may be in the form of an aqueous suspension of finely divided ferrosilicon and magnetite, when introduced in the vessel produces two vortices rotating in the same direction but moving axially in opposite directions, the outer vortex discharging at 3 and the inner vortex at 4. The material to be treated includes ores such as zinc ore or ash-containing coal. The axis of the vessel may be offset from the vertical. Specification 883,474 and U.S.A. Specification 2,725,983 are referred to.
Patent GB-1424587-A (GB)
Title: Copolymers and hydrogels of unsaturated esters
IPC: C08F220/28
Filed: 1973-02-27
Abstract: 1424587 Copolymers UNION OPTICS CORP 27 Feb 1973 9597/73 Heading C3P A cross-linked, water-insoluble copolymer from which hydrogels for use as contact lenses may be prepared is obtained by bulk polymerization of a mixture of a water soluble polymerizable monoester of acrylic acid and/or methacrylic acid and a polyhydric alcohol, and a glycidyl acrylate and/or methacrylate and/or crotonate. The polymerization is carried out using a free radical catalyst and if desired an accelerator to promote reaction by opening of the epoxy ring. In examples copolymers of hydroxy ethyl methacrylate and glycidyl methacrylate are prepared in moulds using t-butyl peroctoate as catalyst. The contact lens blanks produced are machined and then swelled in saline solution to produce contact lenses.
Patent GB-1419591-A (GB)
Title: Radial flow fan
IPC: F04D29/42
Filed: 1973-02-28
Abstract: 1419591 Centrifugal fans L T G LUFTTECHNISCHE GmbH 28 Feb 1973 [3 March 1972 31 Oct 1972] 9811/73 Heading F1C A centrifugal fan comprises an approximately parallel piped casing having two square or oblong side walls 12, (13), Fig. 2, (not shown), and flow peripheral plane walls 24, 25, 26 forming a tangent to an imaginary scroll 22, the fourth side wall being substantially completely open to define an outlet 29. The fan has an axial inlet (20) and rearwardly curved impeller blades 16. Again, Fig. 3 (not shown), the middle wall 25 may have a spirally bent shape (25') or may be bent into approximately circular shape. Specific relative dimensions are given.
Patent GB-843759-A (GB)
Title: Conditioning of phthalocyanine pigments
IPC: C09B67/12
Filed: 1959-03-23
Abstract: Vinyl resins such as polyvinyl acetate, polyvinyl butyral, polyvinyl chloride and copolymers of vinyl chloride and vinyl acetate are pigmented with polychlorinated copper phthalocyanine pigment containing 13 to 16 chlorine atoms per molecule, the pigment particles being coated with a water-immiscible liquid monomeric organic ester of an inorganic or organic polybasic acid. In an example (6) an asbestos-vinyl tile is made from a composition containing titanium dioxide, calcium carbonate, dioctyl phthalate, asbestos filler, calcined clay, normal lead salicylate, stabilizers, calcium stearate, a copolymer of vinyl chloride and vinyl acetate and the phthalocyanine pigment coated with butyl benzyl phthalate. Specifications 380,431, 380,851, and 470,181 are referred to.ALSO:Polychlorinated copper phthalocyanine pigment containing 13 to 16 chlorine atoms per molecule is conditioned by admixing the chlorination mass in which the pigment is made with an aqueous medium in the presence of at least about 5% based on the weight of the pigment, of a water-immiscible liquid monomeric organic ester of an inorganic or organic polybasic acid, said ester having a boiling point of at least about 150 DEG C., and then separating the pigment particles coated with said ester from the aqueous phase. The chlorination is conducted by known methods.  The pigment is used to colour plastics.  Specifications 380,431, 380,851 and 470,181 are referred to.