baber/WOPTO huggingface dataset:
Patent GB-542264-A (GB)
Title: Improvements in or relating to the production of cast iron
IPC: C22C35/00
Filed: 1941-02-01
Abstract: 542,264. Alloys. VANADIUM CORPORATION OF AMERICA. Feb. 1, 1941, No. 1344. Convention date, Oct. 11 1940. Addition to 534,268. [Class 82 (i)] The compositions described in the parent Specification for addition to cast iron are modified by including the calcium or other scavenging element not as a constituent of the alloy but at least partly as a mechanical mixture of the metal or of a separately formed alloy such as of calcium with silicon or with silicon and manganese. The treated irons are particularly suitable for making cast cylinder blocks for internal combustion engines, wheels, cam shafts, and tappets.
Patent GB-556521-A (GB)
Title: Improvements in electric valve circuits for controlling the supply of alternating current to a load circuit
IPC: H02M1/02
Filed: 1942-02-02
Abstract: 556,521. Control systems for resistance welders &c. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 2, 1942, No. 1345. Convention date, Feb. 3, 1941. [Class 38 (iv)] Thermionic oontrol.-Timed control of the number and current-intensity of cycles of A.C. supplied to a load, such as a transformer supplying a welding circuit 1, is obtained through reversely connected valves 4, 5, the second valve 5 being ignited in dependence on the operation of the first by means of a transformer 45 connected across the load circuit. The grid 8 of valve 5 is connected to a phase adjustable peaky wave transformer 36, supplying also the ignition voltage for the grid 8 of the valve 4, but an A.C. bias voltage from a transformer 36 prevents ignition until the collapse of flux in the transformer 45 has caused the ignition of an auxiliary valve 41 which, according to one arrangement, produces a D.C. voltage on a resistance 43 to annul the bias voltage. The first valve 4 may be ignited by moving a switch 17 to its lower contact, whereupon a valve 15, ignited by a peaky wave from a transformer 25 and supplied with D.C. causes a condenser 13 in a timing circuit 10 to charge ; at the same time the grid 8 of the valve 4 normally held by a tapping 34 so negative to the cathode 7 as to prevent the peaky wave from transformer 30 igniting the valve, is relatively raised in potential by the drop occurring in resistance 19 and the valve ignites every alternate half cycle until the condenser charge has sufficiently raised the potential of the cathode 7. The valves 4, 5 may be arranged to supply ignition current to ignitrons controlling the main circuit. In a modified arrangement both valves 4, 5 used to control ignitrons, have their grid potentials held down by an A.C. biasing transformer and, to ignite them, auxiliary valves are arranged to load the transformer winding 5 so as to reduce the respective bias potentials and permit the peaky wave to become effective. One auxiliary valve is controlled by the timing circuit 10 and the other by the transformer 45. Specifications 286,703, [Class 38 (ii)], and 491,771 are referred to.
Patent GB-695772-A (GB)
Title: Improvements in or relating to fluorescent screens for use in cathode ray tubes
IPC: H01J29/32
Filed: 1952-01-17
Abstract: 695,772. Luminescent screens. RAULAND CORPORATION. Jan. 17, 1952 [Jan. 18, 1951], No. 1368/52. Class 39(i) A fluorescent screen for use in a cathode ray tube and which is formed of phosphors fluorescing in different colours, comprises a first phosphor arranged on a supporting plate in a regular pattern of discrete elements individually having a predetermined area and at least one other phosphor having a lower luminosity and arranged in similar pattern of discrete elements individually having a larger area. The screen may be made by mounting a stencil 10, a metal or silk screen 11, and the supporting plate (not shown) in a frame 12 and applythe first phosphor, which may be a green phosphor, through the stencil with a squeegee. After drying, the stencil is displaced sideways by a distance approximately equal to the diameter of one of the apertures in the stencils. Owing to the phosphor dots on the supporting plate the stencil is now spaced away from the supporting plate and when the second phosphor, which may be a blue phosphor, is applied a certain amount of spreading occurs between the stencil and the supporting plate so that the blue phosphor elements have a slightly larger diameter than the green ones. Similarly when a red phosphor is applied after the blue phosphor, the red elements have a larger diameter than the blue ones. The screen may be of the type using strips instead of dots of different fluorescent materials and may be made by using different stencils for the different colours instead of a single stencil.
Patent GB-1456381-A (GB)
Title: Method and apparatus for the development of electrostatic charge  patterns
IPC: G03G15/10
Filed: 1973-01-10
Abstract: 1456381 Developing electrostatic images AGFA-GEVAERT 13 Dec 1973 [10 Jan 1973] 1412/73 Heading G2H In a process for the "wetting development" of a latent electrostatic image at a surface of a material 1, the material 1 is conveyed along a path through at least one zone in which developing liquid is brought substantially uniformly in close proximity to and/or into contact with said surface by applicator means, and then through at least one zone having means for removing some of the developing liquid which has been deposited on said  surface. The developing liquid removal means may be a helically grooved roller 5 revolving in contact with a sponge-like pad 14. Developer applicator rollers 3, 4 are preferably of the kind described in Specification 1456210.
Patent GB-1203108-A (GB)
Title: Production of cyclohexadiene dicarboxylic acids
IPC: C25B3/25
Filed: 1968-01-10
Abstract: 1,203,108. Cyclohexadiene dicarboxylic acids. BADISCHE ANILIN- & SODA-FABRIK A.G. 10 Jan., 1968 [11 Jan., 1967], No. 1413/68. Heading C2C. [Also in Division C7] 3,5 - Cyclohexadiene - 1,2 - dicarboxylic acid and 2,5-cyclohexadiene-1,4-dicarboxylic acid are produced by electrochemical hydrogenation of o-phthalic acid and terephthalic acid respectively in dilute aqueous sulphuric acid at a temperature up to 80 C. and at a current density of 1-40 amps per sq. decimetre at the cathode, there being added to the catholyte an ether, amide and/or nitrile which is miscible with water, is inert under the reaction conditions and is liquid at room temperature. The organic solvents which may be used are saturated cyclic ethers, e.g. dioxane, or tetrahydrofuran; monoethers or diethers of ethylene glycol or 1,2- propylene glycol; alkyl radicals of ether groups such as ethylene glycol monomethyl ether.; N- monoalkyl substituted and N,N-dialkyl substituted amides of aliphatic monocarboxylic acids such as methyl formamide, N-methylacetamide, N-ethylacetamide, dimethyl formamide, diethyformamide or N,N-dimethylacetamide and other N,N-dialkylacetamides, N,N-dimethylpropionamide; N-alkyl substituted laotams such as N-methylpyrrolidone, N-ethylpyrrolidone or N-methylpiperidone; formamide; or nitriles such as acetonitrile. As anolyte an aqueous solution of sulphuric acid may be used. The anodes used may be formed of lead, lead dioxide, platinum, graphite, silicon carbide or magnetic materials, and the cathodes used may be of lead, amalgamated lead, cadmium, tin, thallium, bismuth or alloys of at least two of the metals lead, mercury, silver, cadmium, tin, thallium and bismuth. The cell used may be formed of glass, metal or plastics. The diapragm separating analyte and catholyte may comprise an ion exchange membrane, plastics fabric or ceramic materials, e.g. porous clay. One form of cell comprises a double-walled glass tube which is cooled with water, a cylindrical lead cathode in contact with the inner wall of the glass tube, a cylindrical clay diaphragm positioned within the cathode and separating cathode from anode, and an anode comprising a lead tube cooled by water.
Patent GB-276381-A (GB)
Title: Improvements in or relating to the separation of gaseous mixtures
IPC: F25J5/00
Filed: 1926-02-18
Abstract: 276,381. Frankl, M. Feb. 18. 1926. Separating gases by liquefaction.-The method of heat exchange, described in Specification 246,172 is modified by passing the low pressure air in alternation with the nitrogen through the accumulators while the oxygen and the high pressure air exchange heat in a tubular exchanger. As shown, the two exchanging means are combined, the high pressure air passing through coils 3, 4 and oxygen through coils 7, 8 contained in the accumulators, into which the nitrogen and low-pressure air are passed alternately through valves 16, 26 and pipes 17, 22. Other gaseous mixtures may be similarly treated.
Patent GB-124490-A (GB)
Title: Improved Process of Manufacture of Picric Acid from Dinitro Phenol in Crystal Form and the Elimination therefrom of the Sulphate of Lead.
Inventor: HOLLIDAY LIONEL BROOK
IPC: C07C205/24
Filed: 1916-01-31
Abstract: 124,490. Holliday, L. B., and Badier, L. G. Jan. 31, 1916. Picric acid.-In the manufacture of picric acid by nitrating dinitrophenol as described in Specification 9962/15, lead sulphate contained in the sulphuric acid used is eliminated from the product by adding to the nitration mass sufficient hot water or steam to raise the temperature to 122‹ C. or over, then cooling and agitating, filtering off the crystals of picric acid, and washing the crystals with weak sulphuric acid containing little or no lead sulphate.
Patent GB-162046-A (GB)
Title: Improvements in or relating to brakes for wheels
IPC: F16D55/39
Filed: 1920-01-16
Abstract: 162,046. Sloper, T. Jan. 16, 1920. Suspension-spoke wheels; hubs.-In brakes for aeroplane wheels which are mounted in the hub of the wheel, the brake is actuated by a thrust member situated within the hollow axle of the wheel and having means projecting therefrom through the axle and wall of the hub to engage the brake. The hub comprises coned members 4, 5 spaced apart by a circumferential band 6 carrying the discs 8 forming one member of the brake. The other member of the brake is constituted bv discs 2 keyed to the hollow shaft 1, friction rings 9 being interposed. The outer plates 10 are keyed to the axle and spaced apart by rods 14 connected by springs 13. Rods 11 are mounted in holes in the end plates 10 and plates 2 to serve as guides, and are retained against removal by flanges 12 engaging between two of the plates. The brake is actuated by a rod 21 on which are mounted arms 22 pivoted to a saddle 24 and projecting through slots 25 into engagement with the brake. After insertion through the slots the arms are locked in position by nuts 26. The inner members 15, 16 of the hub and the band 6 carry the spokes 18. The wheel rotates on brasses 17 and is'secured on the axle by a nut 20. According to the Provisional Specification the hub parts 4, 5 comprise dished discs having their hollow sides face to face and united by a band which carries spokes.
Patent GB-973857-A (GB)
Title: An artificial floral spray
Inventor: LIU NGAN SIEN
IPC: A41G1/00
Filed: 1962-11-15
Abstract: 973,857. Artificial flowers. LUXIM INDUSTRIES (PLASTIC) H.K. Ltd. Nov. 15, 1962, No. 1611/64. Divided out of 973,710. Heading A4X. An artificial floral spray has a stem 22 with branches 23 each providing a plug element 24 upon which is mounted a leaf element 25 or other element provided with an orifice complementary to the plug 24, the branches 23 being in a random or irregular pattern.
Patent GB-113936-A (GB)
Title: Improvements in and relating to Sewing Machine Rufflers.
Inventor: FAIRWEATHER HAROLD GEORGE CRUI
IPC: D05B35/08
Filed: 1917-11-14
Abstract: 113,936. Fairweather, H. G. C., (Greist Manufacturing Co.). Nov. 14, 1917. Sewing-machines; ruffling-attachments. - Relates to sewing-machine rufflers which are adapted to make a ruffle at each stitch or at intervals, such as after each five stitches. The ruffling-device is carried by a frame 12 secured to the presser-bar and comprises a lever 16 provided with a shoulder 18 and carrying the ruffling-blade 17<a>, a ratchet wheel 19 having shallow notches 20 and deeper notches 21, and an operating-lever 14 all pivoted on a pin 15 on the frame. A pawl-lever 24 is secured to the lever 14 by a pin or rivet 23 and spring 31 and is bent as shown so as to be fulcrumed on the lever 14 between the spring and the longer end and to be hold resiliently in contact with the ratchet wheel or shoulder of the lever 16. The lever 24 can be adjusted laterally to engage only the shoulder 13 of the lever 16, in which case the ruffler is actuated at each reciprocation of the needle,; or to cover both the shoulder 18 and the ratchet-wheel, in which case the pawl will engage the shoulder only when it registers with the deeper notches 21: or entirely out of contact relation with the shoulder 18. The ruffling- blade is retracted by an adjustable screw 28 on the lever 14 engneing a stop on the lever 16
Patent GB-703556-A (GB)
Title: Improvements in and relating to blower installations and machines for drying strips and webs of fabric, paper or the like
IPC: F26B13/10
Filed: 1951-01-22
Abstract: 703,556. Drying fabric &c. webs. DUNGLTR, J. Jan. 22, 1951 [Jan. 21, 1950; April 21, 1950], No. 1617/51. Class 34(1) Apparatus for drying webs by the action of a gaseous fluid blown on to the web 6 through nozzles 3, 3a separated by outlet channels 4, 4a through which the gases and vapours are extracted has horizontal plates 9, 9a dividing the channels into superposed compartments 4b, 4c so that adjacent to the web the gas flow is substantially perpendicular to the web surface and in the other compartment 4b the flow is transverse thereto, lateral plates 10 closing the ends of the channels 4c to prevent transverse flow. Plates 9, 9a are narrower than the channels 4, 4a, creating transverse slits 11 through which the vapours enter compartments 4b. The web is transported through the chamber 1 between the nozzles on rollers 7, 8 and the nozzles are supplied with fluid by blowers 5, 5a. In a modification plates 9, 9a correspond in shape to rollers 7, 8 to reduce to a minimum the volume of compartment 4c. In another modification the plates are connected to the nozzle sidewalls to leave a central transverse slit instead of the two slits 11. In a further modification, Fig. 6, plates 13, 14, 13a, 14a mounted on the nozzle side walls form a chimney connecting the compartments and in addition to the plates 10 lateral baffle plates 15, 15a are located between the plates 13, 14, 13a, 14a, guiding rollers 18 being located in the compartments adjacent the web. In another modification the horizontal plates are central and U-shaped. open towards the web, the slits either side having lateral baffle plates and in a further modification, Fig. 10, there is no horizontal plate 9, 9a but the channel is divided by vertical baffle plates 24, 25, 24a, 25a and transverse plates 26, 26a forming a plurality of vertical chimneys. The plates being cut out to accommodate rollers 18 if required.
Patent GB-366261-A (GB)
Title: Improvements in or relating to pipe obstructing devices
IPC: F16L55/132
Filed: 1931-01-17
Abstract: 366,261. Tools for stopping and cleaning pipes; joint-making tools. ROWSWELL, P. SALISBURY-, 48, Walton Street, and EVANS, J. M., 12, Glebe Place, King's Road, both in Chelsea, London. Jan. 17, 1931, No. 1622. [Classes 99 (i) and 99 (ii).] In a pipe stopping device of the kind comprising a rubber sleeve 15 which is expanded laterally by axial compression between a plug 16 and collar 13 secured to telescopic members 11, 12 respectively, the latter are made flexible laterally but substantially inextensible and incompressible axially so that relative movement thereof for expanding the sleeve 5 may be obtained by bending them, Fig. 4. Relative movement may also be effected by a nut 21 threaded on the inner member 11 and bearing against a tubular member 17 secured to the outer member 12. The device may be provided with an attachment, Fig. 2, comprising a plate 26, sleeve 22, and securing screw 23 for clamping a fitting to a pipe temporarily while a wiped joint therebetween is being made or other operations carried out. The sleeve 15 may be mounted on a threaded stem integral with the plug 16 and adapted to screw into a hole in a connector 33 on the end of the inner member 11, Fig. 5. This construction allows the stopper to be replaced by a tool 34 for clearing obstructions in pipes, the end of the tool being arrow-shaped with the two points 36, 37 thereof bent in opposite directions. The Provisional Specification describes a tool as above but with the telescopic members 11, 12 constituted by a rigid rod and tube respectively.
Patent GB-136011-A (GB)
Title: Improvements in the Manufature of Cord Cleats or Grips.
Inventor: MCBRIDE WILLIAM
IPC: E06B9/326
Filed: 1919-01-23
Abstract: 136,011. McBride, W. Jan. 23, 1919. Clamps, eccentric. - The parts of a cord-grip are made from sheet metal. The attaching plate a is formed from a cruciform blank, parts being bent up to form the ears a<2> and lugs a<3>, the lugs a<3> acting as a stop for the cam lever c. The lever c is bent from a blank to form two parallel gripping parts c' which grip the cord on either side of the centre line. Alternatively, the lever may be in the form of a thin strip, the handle portion of which may be twisted at right-angles to the gripping-portion.
Patent GB-193617-A (GB)
Title: Improved means for holding meat, bread or the like during slicing, cutting and similar operations
IPC: B26D7/02
Filed: 1922-01-19
Abstract: 193,617. Dunn, J. W. Jan. 19, 1922, Cutting slices in succcession.-A, device for holding meat, bread, or the like during cutting and slicing comprises a base board a, an upright d and a vertically adjustable member g. The meat is gripped between the board a and the member g, the opposed faces of which are spiked. Ribs j are provided on the. base 'board and also, if desired, on the member g. The upright d is dovetailed into, or permanently attached to, the base board a and is provided with vertical dovetails e in which slides the member g. An aperture b serves as a thumb-hold when moving the device. The edges of the base-board are bevelled at k and may carry advertisements, e.p. by attaching metal advertising-plates. The upright d may also carry advertisements, e.g. by pioviding it with a slit in which an advertising card is inserted. The device may be made of aluminium or other metal, or partly of wood and aluminium.
Patent GB-1479761-A (GB)
Title: Ball bearing rollers for ring spinning machines
IPC: F16C13/00
Filed: 1974-01-14
Abstract: 1479761 Bearings J M NOGUERA 8 Jan 1975 [14 Jan 1974] 01700/74 Heading F2A [Also in Division D1] A ball bearing roller unit for a ring spinning machine comprises a pair of hollow rollers mounted on a common spindle 2, first seals 9 serving to close the inner ends of the rollers, the spindle being formed to permit displacement of the seals along the spindle from positions between the rollers to the roller-closing positions, a pair of axially spaced bearings 4 within each roller, each including caged bearing elements 5 each partially contained in an inner track 6 formed in the spindle and in an outer track 7 formed in the inner surface of the roller, the elements being spaced in comb cages 8, and second seals 10 closing the outer ends of the roller. The construction is such as to facilitate assembly of the unit. The seals 9 may be retained in grooves in the spindle. A centre mount 11 of plastics material can be moulded on to the spindle after assembly of the rollers. In embodiments where the ends of the spindle project axially beyond the rollers, the seals 10 are similar to the seals 9.
Patent GB-247361-A (GB)
Title: Improvements in sound amplifying horns
IPC: H04R1/34
Filed: 1925-01-20
Abstract: 247,361. Yrarrßzaval, G. G. de Andia-. Jan. 20, 1925. Loud-speakers.-In a sound amplifier comprising an expanding sound conduit opposed to and enclosed within a sound reflecting bell, the material of the reflecting surface is returned upon itself so as to form a jacket or casing behind the reflector. The jacket or casing may contain air or a material such as a cotton wool, cork dust, &c. Fig. 2 shows a sound conduit 1 and a double-walled reflector 2 in combination with an electric-lamp pedestal 8 containing a telephone receiver, whilst in a modification the amplifier is in an inverted position within a suspended lamp shade. Fig. 11 shows a reflector 14 mounted in a casing 15 which is fitted with a hollow cover 16 enclosing a telephone receiver 18. The casing 15 is fitted with a grille 21 and may be of ornamental design. The casing 15, cover 16 and reflector 14 may be formed of plastic material such as metallic cement. In another modification, Fig. 9, the double-walled reflector 2 is disguised as an ornamental figure 12 and is mounted over an opening in a plate 12<a> supported on legs 12<b> between which the telephonic receiver 9 is located. Specifications 213,253 and 244,162, [both in Class 13, Bells &c.,], are referred to.
Patent GB-115612-A (GB)
Title: Improvements in or relating to Lamps Burning Liquid or Solidified Spirit of Gas.
Inventor: ESNOL ALPHONSE EUGENE
IPC: F23D5/00
Filed: 1917-02-05
Abstract: 115,612. Esnol, A. E. Feb, 5, 1917. Lamps for burning viscous and solid hydrocarbons.-A lamp which may be used for consuming solidified spirit, and adapted for use with a stove &c., such as described in Specification 104,001, [Class 75 (i), Burners &c.], comprises a body a having a " lever-top " perforated and dished lid b and a ring of small holes d near the top of its peripheral wall. After the introduction of solidified spirit, starting is effected by warming the underside of the lamp, and the escaping vapour burns at the holes c, d. A lighted match can be introduced through one of the larger holes in the lid.
Patent GB-1177532-A (GB)
Title: Metal Tube Recuperator.
IPC: F28F9/013
Filed: 1967-01-13
Abstract: 1,177,532. Thermal recuperators. SKODA, OBOROVY PODNIK. 13 Jan., 1967 [15 Jan., 1966], No. 1841/67. Heading F4S. A recuperator 1 for heating air or other gas comprises a plurality of seamless metal W- shaped tubes 3 of oval cross-section arranged in a series of horizontally spaced groups. Each group has a plurality of vertically spaced tubes, the upper tube of each group being joined to a horizontal carrier plate 4 by a suspension plate 6. Adjacent tubes of each group are off-set from each other (see Fig. 3), and are joined together by connecting plates 7. Distance plates 10, 10<SP>1</SP> maintain constant spacing of the tubes. The gas to be heated passes through the tubes between common inlet and outlet headers 8, 9. The recuperator 1 is located in a duct 11 through which a stream of hot combustion gases is passed over the tubes.
Patent GB-232683-A (GB)
Title: Improvements in or relating to bituminous emulsions
IPC: B01F27/96
Filed: 1924-01-23
Abstract: 232,683. Mackay, H. A. Jan. 23, 1924. Emulsions, making.-The process of Specifications 202,021 and 202,235, for making bituminous emulsions by adding fatty acid to the melted bitumen and subsequently stirring in hot dilute caustic or carbonated alkali, is modified by carrying out the emulsification at a lower temperature, about 190 F., in an apparatus comprising at least two rotary agitators consisting of vertical frameworks rotating about vertical axes, the spaces swept out by the frameworks being wholly or partly coincident. In Fig. 1 a tank 5 is provided with two such agitators 7, 8 mounted on axes 6, the frameworks comprising a number of vertical bars 9 preferably perforated with holes 10 and rotating in opposite senses. Fig. 3 shows the apparatus described in Specification 205,672, [Class 86, Mixing &c.], and comprising two sets of blades 11, 12 rotating in opposite senses about the same axis. The blades 11 are carried by a frame 14 rotated by a sleeve 15 and the blades 12 are rotated directly by the axis 13. The blades are inclined at 45 to the horizontal and are set in the reverse way on opposite sides of the axis while consecutive blades on the same side of the axis are oppositely inclined. The blades are perforated. In addition to the emulsification of bitumen, emulsifying mixtures of bitumen with a flux or " cutback " is referred to.