baber/WOPTO huggingface dataset:
Patent GB-437016-A (GB)
Title: Thermionic valve modulation system
IPC: H03D7/06
Filed: 1934-01-18
Abstract: 437,016. Valve modulating and detecting circuits. HAZELTINE CORPORATION, 15, Exchange Place, Jersey City, New Jersey, U.S.A.-(Assignees of Wheeler, H. A. ; 18, Melbourne Road, Great Neck, New York, U.S.A.) Jan. 18, 1934, No. 23424/35. Convention date, Jan. 30, 1933. Divided out of 436,940. Drawings to Specification. [Class 40 (v)] The subject-matter is identical with that of Specification 436,940. The claims relate to a modulation system and supersonic heterodyne receivers in which one signal is impressed on a control grid of the variable-mu kind to which a variable bias voltage is applied while the second source of oscillations is connected to a second grid in the same electron stream which is screened from the other grid. Specifications 293,462, [Class 40 (v)], 398,882, and 435,383, are referred to.
Patent GB-263220-A (GB)
Title: Improvements relating to tramway and railway rails
IPC: E01B5/10
Filed: 1925-09-19
Abstract: 263,220. Allen & Co., Ltd., E., (Pringle, P. J.). Sept. 19, 1925. Rails, metallic builtup. - A renewable reversible check-rail h is supported by inner and outer distancepieces d, n secured to the rail a by bolts o. Additional supports q may be provided to engage the groove m of the check h. The check h is of cast or rolled manganese steel and has its tread faces j, k disposed at an angle of less than 90‹.
Patent GB-1059856-A (GB)
Title: Diazotype films
IPC: G03C1/61
Filed: 1964-06-05
Abstract: 1,059,856. Photo-sensitive materials containing fluorescent compounds. J. R. GEIGY A. G. June 5, 1964 [June 6, 1963], No.23445/64. Heading G2C. A diazotype material comprises a cellulose acetate support bearing a surface saponified layer of cellulose hydrate which contains an aryl diazonium compound and a fluorescent compound which is cellulose hydrate substantive. Specified fluorescent compounds are stilbenes of the formula: wherein X is ulphonic acid and Y is hydrogen, alkyl, alkoxy or sulphonic acid, A and B complete a 1, 2, 3 triazoyl (2)-ring which may contain fused rings or be substituted or A is hydrogen and B is an s-triazinyl radical which may be substituted and Z is hydrogen, hydroxy, halogen, -N#<A> B, or a group of formula: The fluorescent compound is first applied to the saponified support and then, after an optional drying, the diazonium compound is applied. In Example 1, a cellulose 2¢ acetate film is saponified in an alkaline solution containing a fluorescent compound of formula: The film is then coated with a diazonium salt, imagewise exposed and developed in an alkaline coupling solution.
Patent GB-1302107-A (GB)
IPC: C07C45/43
Filed: 1970-05-15
Abstract: 1302107 Production of aromatic hydroxyaldehydes BADISCHE ANILIN- & SODAFABRIK AG 15 May 1970 [17 May 1969] 23576/70 Heading C2C A process for the production of an aromatic hydroxyaldehyde which has a -CHO group and an -OH group attached to the same benzene ring and which may have another benzene ring fused to the first-mentioned benzene ring and/or which may also have one or more inert substituents wherein a corresponding aromatic methylchloroformic acid ester which has a -CH 3 group and an -OCOCl group in place of the -CHO group and the -OH group respectively is chlorinated to form an aromatic dichloromethylchloroformic ester which has a -CHCl 2  group in place of the -CH 3 group and the resultant dichloromethylchoroformic ester is then hydrolysed to the hydroxyaldehyde. In Example I, the intermediate o-cresolchloroformic ester is prepared by reacting phosgene with o-cresol in toluene solvent. This compound may be converted into the dichlorocresolchloroformic ester by reacting with chlorine gas.
Patent GB-1502338-A (GB)
Title: Apparatus for producing a blown hollow plastics article
IPC: B29C48/09
Filed: 1975-05-30
Abstract: 1502338 Extrusion-blow moulding D E M OSSBERGER 30 May 1975 [1 June 1974] 23585/75 Heading B5A Extrusion blow moulding apparatus, Fig. 1, comprises an extrusion die 30 having a nozzle member 2 within which is a cone 1 movable to open and close the outlet aperture 3. The blow pin 31 is located in a draw-off device 6 movable from a position in contact with the nozzle 2 where it co-operates with the mandrel 29, to the position shown, where it co-operates with the movable blow mould members 11 to define the mould cavity. Projections 25 on the members 11 which have cutting edges 28 define with the extrusion nozzle 8 a cavity which accommodates the waste material.
Patent GB-1479860-A (GB)
Title: Process for decoking of conduits
IPC: C10G9/16
Filed: 1975-05-30
Abstract: 1479860 Decoking conduits LION OIL CO 30 May 1975 [5 June 1974] 23649/75 Heading F2N A process for removing coke deposits from a conduit for carrying hydrocarbon vapour, such as the cyclone discharge nozzle of a fluid coking unit, uses a jet of water at a pressure in excess of 5000 p.s.i. whereby the coke is broken into pieces and expelled from the conduit. By using cold water the coke may be subjected to thermal shock to break it into pieces and the water jet may conveniently be at a pressure between 6000 and 7000 p.s.i. such as 6500 p.s.i., it may have a temperature of between 50 and 70 F. and have a flow rate of between 30 and 40 gallons per minute, such as 35 gallons per minute. Alternatively the jet may be at a pressure of 5500 p.s.i. and have a flow rate of 35 gallons per minute. The water jet may be produced using a lance for insertion into the conduit and having two small oppositely located rearwardly directed holes through which water jets issue.
Patent GB-518967-A (GB)
Title: Improvements in or relating to valves for fire hydrant systems in mines
IPC: E03B9/02
Filed: 1938-08-11
Abstract: 518,967. Valves. MORRIS, C. V. Aug. 11, 1938, No. 23660. [Class 135] In a valve for fire-hydrant systems for use in mines, wh'ch comprises a main valve 28 and an auxiliary check-valve for providing a predetermined restriction of the flow, the check comprises an apertured web 19 in the body of the valve and a screwed plug 21 forming an adjustable restriction for the aperture. The plug is adjusted by means of a key, and is provided with a water-tight cover 24. A lock-ring 26 surrounding the stem of the plug prevents it from being unscrewed too far. The check may be on either side of the main valve.
Patent GB-1198729-A (GB)
Title: Preparation of 1,2-Dichloroethane, 1,1,2-Trichloroethane, 1,1,2,2-Tetrachloroethane and Pentachloroethane
Inventor: ANTONINI ALBERT
IPC: C07C17/156
Filed: 1968-05-17
Abstract: 1,198,729. Oxychlorination process. PRODUITS CHIMIQUES PECHINEY-SAINTGOBAIN. 17 May, 1968 [19 May, 1967], No. 23669/68. Heading C2C. 1,2 - Dichloroethane, 1,1,2 - trichloroethane, 1,1,2,2 - tetrachloroethane and pentachloroethane are produced by passing a gaseous mixture - comprising ethylene, HCl and an oxygen - containing gas, through a reaction zone containing a fluidized catalyst bed at from 280 to 370 C., the molar ratios O 2 /C 2 H 4 , HCl/O 2  and HCl/C 2 H 4  being 0.7 to 0.85, 2.65 to 3.50 and 2.10 to 2.65 respectively, the ethylene flow-rate being 0.5 to 20 moles, per hour, per litre of catalyst, and the catalyst being supported on a carrier having an average specific surface area greater than 1 m<SP>2</SP>/g. The carrier may comprise alumina, magnesia, graphite, activated carbon, silica, an aluminosilicate, clay or a synthetic silica based mixture containing magnesia. Chlorinated ethylenes and chlorinated methanes may be produced as byproducts.
Patent GB-1479429-A (GB)
Title: Aluminium alloy products and method for making same
IPC: C22C1/02
Filed: 1973-05-17
Abstract: 1479429 Dispersion strengthened Al alloys ALCAN RESEARCH & DEVELOPMENT Ltd 15 May 1974 [17 May 1973 5 March 1974] 23684/73 and 9946/74 Heading C7A [Also in Division B3]  An aluminium alloy containing 5-20% by volume of unaligned rods of Al-Ni or Al with two or more of Fe, Ni, Mn and Si intermetallic compounds with an average diameter of 0À1-1À5Á and essentially free of coarse primary intermetallic particles is worked to effect at least 60% reduction to produce dispersion strengthening. Up to 0À5% of the combined Fe + Ni content may be replaced by Co. The product may be finally heat-treated at 230-450‹C. The amounts of Fe, Ni, Mn or Si are preferably between 20% less than and 10% more than eutectic and up to 1% each, 1À5% total, Zn, Fi, Cu and Mg and up to 0À3% each, 1% total, of other elements may be included.
Patent GB-776112-A (GB)
Title: Gas analyzer
IPC: G01N27/16
Filed: 1955-08-17
Abstract: 776,112. Gas analysing bridge circuits. FOXBORO CO. Aug. 17, 1955 [Aug. 31, 1954], No. 23741/55. Class 40 (1). A gas analyser comprises a D.C. bridge circuit which has in one arm a temperature-responsive resistance which is subjected to the heat of combustion of a gaseous mixture and across which an alternating voltage is applied, and in another arm a reference resistor across which another alternating voltage is applied, and the unbalance output of the bridge, due to the resistance variation occasioned by the heat of combustion, is applied to a feed-back arrangement for varying the alternating voltage applied to the temperature-responsive resistance until balance is restored. The bridge is also provided with means to render the A.C. and D.C. functions thereof compatible. As shown, the gas analyser includes a bridge 10 to which a D.C. voltage is applied from source 11, this bridge having in arm 3 a temperature responsive resistor M enclosed in a combustion chamber and a standard resistor m. Identical reference resistors R, r are incorporated in arm 4. Alternating voltages are applied across arms 3, 4, these voltages being derived from a source 24 and fed to the arms through amplifiers 31, 30 of which amplifier 31 has a variable gain so that the voltage across arm 3 may be varied. In use, amplifier 31 is first adjusted until the bridge is balanced and a gas sample is then drawn into chamber 22 and combustion initiated. This results in an increase in the resistance of M and the resulting unbalance output from the bridge is fed to a detector 40 which is connected to amplifier 31 so that the latter is automatically adjusted to reduce the current through resistor M and hence restore the bridge balance. The ratio of the currents through the standard resistors m, r is measured by a potentiometer circuit 38, the output of which is applied through a slider 41 to an amplifier 49 and, when the bridge is balanced, this ratio is a measure of the heat of combustion. The amplifier 49 has also applied thereto the output from a bridge 47, supplied with A.C. from source 24, and the voltage difference between the outputs of bridge 47 and potentiometer circuit 38 is applied to a motor 52 for adjusting a variable condenser 54 in the bridge 47 until the latter is balanced. Condenser 54 is mechanically linked at 55 to a pin 56, movable radially over a rotating chart 57, so that a continuous record of the amount of heat supplied by combustion of the gas sample is obtained. 500 ohm resistors 16, 17, 19 and 20 and blocking condensers 34, 37 are provided to make the A.C. and D.C. functions of the bridge compatible.
Patent GB-1169767-A (GB)
Title: Electrical Winding Structure
IPC: H01F27/34
Filed: 1967-05-23
Abstract: 1,169,767. Transformers and reactors. WESTINGHOUSE ELECTRIC CORP. 23 May, 1967 [8 July, 1966], No. 23828/67. Heading H1T. A winding e.g. for a transformer or autotransformer, comprises a plurality of interleaved-type disc coils 28, 30 &c. in which a predetermined number of coils adjacent at least one end of the winding have more conductive stranded turns connected in parallel than the remaining coils. In Fig. 1 each of a predetermined number of coils e.g. coil 28 is formed by simultaneously spirally winding two radially adjacent conductors, one of which is severed at its mid-point (B0, B6) to form inner and outer sections. Two connections LA and LB are made to the coil, LA being connected to the outer end of the uncut conductor and LB being connected to the inner section of the cut conductor (at B0 inner and outer sections being series connected via conductor 62. Thus each of the predetermined number of coils has two parallel interleaved paths and fewer seriesconnected turns than the remaining coils e.g. coil 36 (which have only one path). A predetermined number of coils adjacent the second end of the winding may have a similar configuration to that of the coils at the first end, while the remaining coils may have tap connections. Greater turn-to-turn insulation may be used in the coils having more turns. The transformer may be filled with oil or SF 6 , and cooling ducts 56 may be provided by axial spacing of the coils. Tapped coils have the greatest number of series-connected turns. The axial width of the disc coils may be less for the end coils (see Fig. 1 arrangement).
Patent GB-672596-A (GB)
Title: Improvements in preparation of 1,2-dihydropyridazine-3,6-dione
Filed: 1950-09-29
Abstract: 1,2 - Dihydropyridazine - 3,6 - dione is prepared by reacting maleic acid or anhydride with a hydrazine salt of a strong inorganic acid, preferably in an aqueous medium.  The reaction may be completed by heating the reactants to 75 DEG  to 110 DEG  C., cooling and separating the crystalline precipitate.  In an example, dihydrazine sulphate dissolved in water is mixed with maleic anhydride, heated to just below refluxing temperature and cooled to precipitate the 1,2 - dihydropyridazine - 3,6 - dione.  Other examples are given in which the reactants are maleic acid and dihydrazine sulphate or hydrazine sulphate; and maleic anhydride and hydrazine hydrochloride or phosphate.
Patent GB-1046929-A (GB)
Title: Method of colouring parts made of titanium and titaium alloys in an electrolyte
Inventor: WEIGEL JURGEN
IPC: C25D11/26
Filed: 1964-06-09
Abstract: A method of colouring the surface of a titanium, or titanium alloy article comprises anodizing the article in an aqueous electrolyte containing from 0.1 to 25 wt per cent acid and or base, together with 0.1-8 wt per cent dissolved metal and using as cathode a metal other than titanium which is resistant to the electrolyte, e.g. aluminium, the applied voltage being in the range 5-80 volts.  The dissolved metal may be aluminium and/or copper and/or zinc.  In examples, acids used are sulphuric and oxalic acids.  The temperature may range from 0-60 DEG C.  Small articles may be anodized within an aluminium drum which serves as cathode. In this embodiment the electrolyte should contain hydrofluoric acid.  The resulting colour of the surface is dependent upon the voltage chosen, and if the article comprises titanium alloy, upon the quantity of titanium present therein.
Patent GB-1096293-A (GB)
Title: Improvements relating to plasma-torch assemblies
Inventor: MITCHELL PETER
IPC: H05H1/32
Filed: 1964-06-09
Abstract: 1,096,293. Arc torches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. June 9, 1965 [June 9, 1964], No. 23875/64. Heading H5H. A plasma torch comprises a chamber 1 having an outlet nozzle electrode 7 with a length at least four times the diameter of its bore, a carbon rod electrode 9 projecting into the chamber, terminals connected to each electrode, means for introducing plasma forming gas into the chamber to form a vortex around the tip of the carbon rod and a source of A.C. at power frequency connected between the terminals. The carbon rod is copper coated, water cooled and its position can be adjusted. One or a mixture of gases is injected through one or more nozzles 13 and an arc is struck between the tip of electrode 9 and a step 14 in the conduit 8 of electrode 7, current being supplied from a step-down transformer and a current regulating reactor. Plasma discharges to atmosphere, into a vessel containing reactive or non-reactive gases or impinges on conductive or insulating material. The torch may be used for smelting conductive material in a furnace when a high voltage is applied between the material and electrode 7.
Patent GB-911354-A (GB)
Title: Improvements in suction sheet feeders
IPC: B65H3/08
Filed: 1961-07-03
Abstract: 911,354. Feeding sheets. HUBBARD, H. J., and MOLINS MACHINE CO. Ltd. July 3, 1961, No. 23953/61. Class 100 (1). Sheets are separated from the bottom of each of two stacks 1 by suckers 3 on a tube 7 which is pulled downwardly by a pneumatic piston and cylinder device, and the sheets are released on supports 5, provided with teeth or abutments 6, which carry them away. The tube 7 is fixed to a hollow piston 9 in a cylinder 10 which is connected by a member 12, provided with a needle-valve 13, to a source of suction. When the suckers 3 are in the sheet-engaging position shown, suction is established at the suckers through the piston 9 and tube 7, and this builds up sufficiently to pull the piston and tube downwardly against the action of a coil spring 19. As the piston moves down the cylinder, the hollow bore 16 in the piston is sealed by a fixed valve stem 18, so that the sheets are released by the suckets to lie on the supports 5. On further downward movement of the piston, a port 15 therein comes into alignment with a port 14 in the cylinder; the pressure then rises in the piston, and the spring 19 can raise it to its former position so that the suckers 3 again engage the sheet stacks. The valve 13 can control the rate at which the suckers 3 descend, and a rotary &c valve in the suction line can control the time of application of suction at the suckers.
Patent GB-201439-A (GB)
Title: Improvements in or relating to musical instruments of the viol class played automatically or from a key board
IPC: G10F1/18
Filed: 1922-09-06
Abstract: 201,439. Wade, H., (Mills Novelty Co.). Sept. 6, 1922. Keyboard stringed instruments; mutes.-A violin &c. operated by means of a keyboard, has a mute which contacts with the bridge on energization of an electromagnet. the circuit of which is closed by a keyboard or other switch. Rotary bows " 6 supported by levers pivoted on a shaft 13 are electromagnetically brought into contact with the strings as described in Specification 29654/13, [Class 88 (i), Musical instruments, Automatic]. A resin-holder 18, which has an open bottom with an inturned flange and rides on the " bows " 6 is pivoted on the shaft 13 and carries an arm 21 provided with an armature 24. The plate 34 with sharpened edge, forming the mute, is carried on a lever 31 pivoted at 30 to a fixed bracket 28. Energization of the electromagnet 25 by a switch 27 or otherwise, depresses the resin-holder 18, which by means of a pin 33 engaging a cam-slot 32 in the lever 31, brings the mute 34 into contact with the bridge.. In a modification, the electromagnet acts directly on a bell-crank lever carrying the mute.
Patent GB-1095186-A (GB)
Title: Substituted cyanoacetic esters
Inventor: SLETZINGER MEYER
IPC: C07C255/32
Filed: 1965-02-08
Abstract: Novel compounds of formula <FORM:1095186/C2/1> in which n is 0, 1 or 2, R2 is a C1- 5 alkyl radical, or an aryl-substituted C1- 5 alkyl radical, R3 i acetyl or formyl, and each of R4 and R5 is a hydrogen atom, a C1- 5 alkyl radical, or an aryl-substituted C1- 5 alkyl radical or OR4 and OR5 are ortho to each other and R4 and R5 together represent a methylene group, are prepared by condensing an appropriately substituted benzyl bromide or chloride with an a -acylaminocyanoacetic acid ester in the presence of sodium hydride. The substituted benzyl halide is made by reducing the corresponding benzaldehyde by direct addition of hydrogen in an inert solvent in the presence of a platinum catalyst, and reacting the benzyl alcohol obtained with a 50% mixture of ether and concentrated hydrobromic or hydrochloric acid at room temperature for three hours.  The a -acetamido- or a -formamidocyanoacetic acid esters may be obtained by reacting a cyanoacetate with sodium nitrite and glacial acetic acid in ice water, stirring the crystalline mass obtained with conc. hydrochloric acid, and reacting the a -oximinocyanoacetate obtained with zinc dust in formic acid or acetic acid.
Patent GB-944388-A (GB)
Title: Partition with a metal framework
IPC: E04B2/78
Filed: 1960-07-12
Abstract: 944,388. Partitioning. J. J. A. GRISARD, and M. J. A. GRISARD. July 12, 1960 [July 17, 1959; June 24, 1960], No. 24208/60. Heading E1V. Partitioning comprises a metal framework including uprights 1, Fig. 5, and cross beams 2 of identical cross-section of rectangular box-like form with open faces 4, 5 carrying flanges 6, 7, 8 and 9 defining rabbets into which panels 34, Fig. 8, are received. The uprights 1 and cross beams 2 are connected by pairs of metal strips 18, 19 passing through apertures 20, 21, 22, and 23 in the side walls of the uprights, the strips being arranged in opposition, one on each side of co-planar connecting webs 3 in the uprights and cross beams, the ends of the strips being provided with screws 30, 31, 32 and 33 adapted to be screwed into clamping engagement with the webs 3 of the cross beams. The panels 34 are retained by cover-strips 36 carrying means to resiliently engage within the open faces of the framework members. More than one web 3 may be provided in the framework members and in the embodiment of Fig. 12 two such webs house a steel reinforcement 44. Filling 52 may be provided between the panels.
Patent GB-694509-A (GB)
Title: Improvements in hosiery drying machines
Inventor: HELLIWELL GUY STORR
IPC: D06C5/00
Filed: 1950-10-05
Abstract: In hosiery drying apparatus having a rotary table 8 carrying hose forms 22 through an annular chamber 19 where air heated by steam tubes in a casing 25 is blown down on to the hosiery, steam may be blown on to the nylon or other stockings through perforated pipes 46, 47 at the entrance to the chamber 19.  Heated air is blown on to the hosiery in the initial part of the path only so that cooling takes place in the remainder.  The chamber 19 is formed by an outer wall 5 and an inner wall 16 suspended from a cover 15 attached to wall 5. Air is drawn through an opening 24 in cover 15 and recirculated.  The front of wall 5 is interrupted and the wall 16 flattened at 17 to provide access for loading and unloading.  The hose forms 22 are held by clamps 18 on the table 8 and auxiliary heating is provided by a steam pipe 36 in the lower part of chamber 19. <PICT:0694509/IV (c)/1> <PICT:0694509/IV (c)/2>
Patent GB-1245122-A (GB)
Title: Electrical connectors
Inventor: BRIDLE KENNETH FREDERICK
IPC: H01R12/67
Filed: 1968-05-22
Abstract: 1,245,122. Tape-cable connectors. A.B. ELECTRONIC COMPONENTS Ltd. 22 May, 1969 [22 May, 1968], No. 24430/68. Heading H2E. Connections to conductors 8 in a tape cable 7 are made by teeth 15 on contacts 10 maintained under pressure by a spring 17 and a support 16 which may also be resilient. The contacts are retained longitudinally in a grooved carrier 13 by shoulders 11, 12 and the assembly of spring, carrier, contacts, cable and support is compressed and inserted in a housing 1 where it is kept under compression and may be retained by barbs (20). To improve contact, the cable may be pulled longitudinally so that the teeth plough through the insulation before the housing is crimped to clamp the cable at 6.