baber/WOPTO huggingface dataset:
Patent GB-467602-A (GB)
Title: Process for the manufacture of monoazodyestuffs of the pyrazolone series
Filed: 1935-12-20
Abstract: Monoazo dyes are made by coupling diazo compounds with pyrazolones of the formula <FORM:0467602/IV/1> (R1 and R2 = monovalent hydrocarbon residues which may be substituted), the components being selected so that the dyestuff obtained contains at least one solubilizing group. They yield level reddish yellow and yellow shades on wool which in some cases may be after-chromed.  In examples dyes from the following components are described: diazo components; 3-chloro-2-toluidine-5-sulphonic acid, aniline-3-sulphonic acid, 2 - chloraniline - 5 - sulphonic acid, 2 - naphthylamine - 8 - sulphonic acid, 2 - aminobenzoic acid-5-sulphonic acid: coupling components; 1-phenyl-3-methyl- or ethylsulphonemethyl - 5 - pyrazolone, 1 - phenyl - or 1 - (3<1> - sulphophenyl) - 3 - p - tolylsulphonemethyl - 5 - pyrazolone, 1 - phenyl - 3 - phenylsulphone-methyl-5-pyrazolone. The sulphone pyrazolones are made by condensation of g -halogen acetoacetic acid esters with sulphinic salts followed by converting the reaction products with hydrazines into the pyrazolones.
Patent GB-297764-A (GB)
Title: Improvements in or relating to plug cocks
IPC: F16K11/083
Filed: 1927-06-27
Abstract: 297,764. Shell-Mex, Ltd., and Lawson, J. June 27, 1927. Divided on 287,589. Plug cocks.-A plug cock 1 which is subject to side thrust of the controlled fluid is balanced laterally by the provision of a recess or pocket 9 formed diametrically opposite the line of the side thrust, the pocket being in communication with the inlet fluid through a passage 10 in such a manner that the plug is balanced laterally in all its positions. As applied in connection with a four-way cock for controlling the supply and discharge of petrol to and from a pair of containers, as for example according to Specification 287,589, the passage 10 extends to the periphery of the plug on the inlet side, as shown and is of such dimensions as to be in communication with the inlet 3 when the inlet passage 7 is out of communication therewith. The axial thrust of the fluid on the plug is also balanced by means of a piston chamber 11 connected by an opening 12 to the passage 10. The chamber 11 is fitted with a spring-pressed piston 13 abutting against a screw 16 which is adjustable to vary the pressure of the spring 14 and the position of the piston.
Patent GB-434111-A (GB)
Title: Method of and arrangement for producing image points of defined form in braun tubes
IPC: H01J29/56
Filed: 1933-12-18
Abstract: 434,111. Cathode-ray tubes. RADIOAKT.-GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, and SCHLESINGER, K., 39, Friedrichstrasse, Friedrichshagen, both in Berlin. Dec. 18, 1933, No. 35510. Convention date, Dec. 20, 1932. [Class 39 (i)] . In a television tube in which a concentrated and modulated cathode - ray is deflected at right angles by two deflecting plate systems to cause it to scan the picture screen, the two plates of at least one of the systems are both biassed positively or negatively to the same extent with respect to the anode adjacent the systems, the bias being so great that a constant substantial deformation of the cross-section of the ray results. The biassed systems may also act to concentrate the ray. If both systems are biassed negatively, a ray of rectangular or square crosssection is obtained, the image point on the screen being of height h/Z where hand Z are the height of the picture and the number of lines therein. If three-plate deflecting systems as described in Specification 432,209 are used, .the two outer plates are biassed relatively to the anode. The centre plate is biassed positively relatively to the outer plates and has a wide slot to avoid changes in the crosssection of the ray at the slot. The bias voltages are obtained from potentiometers. The Specification as open to inspection under Sect. 91 comprises also the deformation of the cross-section of the ray by other transverse "attraction or pressure" fields. In one modification, the ray is passed between knife edges at the ends of biassed strips 31 .. 34, Fig. 1 (Cancelled), transverse to the ray. In other modifications, the cross-section is deformed by passing the ray through biassed slotted diaphragms. The central slotted diaphragm of the three-plate system described in Specification 432,209 may be used by making the slot narrow and of length at least equal to the width of the outer plates, or special diaphragms 26, 28, Fig. 5 (Cancelled), are connected respectively to the first anode and to the centre plate 9 of the deflecting system and are screened by large-aperture diaphragms 27, 29 connected to the second anode 6. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specification 423,427.
Patent GB-1292031-A (GB)
Title: Improvements in or relating to cup holders
Inventor: SHELLEY STEVEN VICTOR
IPC: B65G59/10
Filed: 1968-07-25
Abstract: 1292031 Dispensing nested cups G K N SANKEY Ltd 16 Oct 1969 [25 July 1968] 35520/68 Heading B8S A cabinet 10 for a coin feed apparatus is provided with four stacks of cups 24, 25, 26 and 27 of which stacks 25 and 26 rest on pivoted platforms 20 and 19, stack 27 rests on fixed platform 23 and stack 24 is discharged one by one by discharge apparatus 15. When the stack 24 is depleted, striker element 76 which bears against the stack is operated to cause motor 36 to rotate through 90 degrees of movement. The motor engages bar 28 at 37 and moves within the slot 38 formed in bar 28 so that the bar moves horizontally rightwards and engages latch member 45 pivoted at 47 to release the platform 19 pivoted at 12 so that stack 26 slides downwards to the right into the position of stack 24. When the latter stack is again depleted, striker element 76 again operates and motor 36 again performs a movement of 90 degrees to cause the bar 28 to move leftwards. This engages latch member 46 and moves it leftwards to free platform 20 which pivots to release stack 25 to slide into the position of stack 24. Finally, when the latter stack is depleted, striker element 76 again operates to cause rotation of motor 60 which via cam 72 and link 68 cause arm 63 to move about pivot 62 and push the stack 27 into the position of stack 24.
Patent GB-1180319-A (GB)
Title: Improvements in or relating to the Preparation of Ethane-1,2-Dihydrazine
IPC: C25B1/42
Filed: 1968-07-25
Abstract: 1,180,319. Ethane - 1,2 - dihydrazine. FRANCE, REPUBLIC ARMY, MINISTER OF. 25 July, 1968 [31 July, 1967; 14 June, 1968], No. 35584/68. Heading C2C. Ethane-1,2-dihydrazine is prepared by treating an ethane-1,2-dihydrazine salt in suspension in an anhydrous alcohol with not more than the stoichiometric amount of a corresponding alkali metal alcoholate at ambient temperature in the presence of air or an inert gas and under agitation, separating the precipitated alkali metal salt, and removing the alcoholic solvent. Examples detail the preparation from the dihydrochloride salt using sodium propoxide/propanol or sodium methoxide/methanol.
Patent GB-842733-A (GB)
Title: Recovery of novobiocin from solution
IPC: C07H17/075
Filed: 1956-11-21
Abstract: Pure crystalline novobiocin is recovered from a concentrated solution of novobiocin active material by treating said solution with a water-soluble alkanoic acid especially one containing not more than six carbon atoms and at least one carboxylic acid group, which is soluble in water and in aqueous alkanol and has a dissociation constant of 10-3 to 10-6, in an aqueous alcoholic medium wherein the alcohol is monohydric, miscible with water and contains not more than four carbon atoms in the molecule.  The novobiocin solution may be aqueous or alcoholic, in the latter case, water is added preferably so that the final proportions of alkanol, water and alkanoic acid are 10:4:1 by volume.  Specified alkanoic acids are the monocarboxylic acids, formic, acetic, propionic butyric, isobutyric, valeric and isovaleric acids and the polycarboxylic acids citric, malic, malonic, succinic and pyrotartaric acids.  Specified alkanols are methanol, ethanol, propanol, isopropanol and butanol. Specifications 821,819, 821,820 and 842,732 are referred to.
Patent GB-764507-A (GB)
Title: Improvements in or relating to vibration dampers
IPC: F16F7/108
Filed: 1954-12-09
Abstract: 764,507. Vibration dampers. BLACKBURN & GENERAL AIRCRAFT, Ltd., KING, A., WINN, E. A., SAUNDERS, C. G., and PIPER, R. H. Nov. 21, 1955 [Dec. 9, 1954], No. 35708/54. Class 108(3). A vibration damper comprises a sphere 1 supported by six circular rubber pads 2 disposed respectively concentrically with the ends of three mutually perpendicular diameters of the sphere 1 Four of the pads 2 are carried by a frame 3 adapted to be made fast to the part (not shown), the vibrations of which are to be damped. The remaining two pads 2 are carried by a cradle 4 rigid with the frame 3. A formula is given for determining the dimensions of the pads in terms of the radius of the sphere.
Patent GB-1027407-A (GB)
Title: Method and apparatus for assembling hollow anodes for dry cell batteries
IPC: H01M50/469
Filed: 1964-09-01
Abstract: 1,027,407. Primary cells. PATENT HOLDING CORPORATION. Sept. 1, 1964 [Sept. 27, 1963; June 16, 1964], No. 35809/64. Heading H1B. A cylindrical metallic anode C has a bibulous separator B wrapped round its outer diameter with the end 36 projecting beyond the cylinder and this end is then pulled into and through the bore of the anode by a tool 42 having a resilient end 46. Subsequently, both the inside and outside are smoothed by a co-acting member. The anode is that of the cell disclosed in Specification 813,800.
Patent GB-1355120-A (GB)
Title: Electron-beam fluorescent screen picture tube arrangements
IPC: H04N9/27
Filed: 1971-07-30
Abstract: 1355120 Cathode-ray tube circuits LICENTIA PATENT-VERWALTUNGS GmbH 30 July 1971 [31 July 1970] 35875/71 Heading H4T  The energy (velocity) of the beam of a cathoderay display tube is varied by switching different valves of electron accelerating high-voltage (EHT) to the cathode of the tube. The invention is described in connection with a display tube of the kind in which the colour reproduced on the screen is dependent on the energy of the scanning electron beam so that symbols traced by appropriate beam deflection may be reproduced in a required colour by control of the EHT. This requires switching times of a few microseconds which the comparatively small capacitance associated with the tube cathode circuit allows as opposed to switching an EHT supply in the tube anode circuit the capacitance of which would give rise to switching times of the order of millisecond. As shown, the anode A is supplied with a fixed positive D.C. voltage U (e.g. 14kV) and by means of linked switches S1, S2 an additional positive D.C. voltage V2 (e.g. 6kV) may be switched into the cathode-earth circuit. Alternatively the anode A may be connected to earth and the voltage source U1 connected in series with the cathode earth circuit. If three colours are to be reproduced a second switched voltage source U3 may be provided. The tube heater is supplied from a 6V winding on a transformer TR1 the primary of which is connected to a high frequency generator G providing a 30V, rectangular wave supply the 6V winding also providing the primary drive to a transformer TR2 having a secondary winding supplying - 100V at terminal 3 for the beam intensity control grid I via video amplifiers V and supplying + 600V at terminal 4 for the preliminary acceleration grid N. This voltage is also supplied to a focusing unit FU which provided the focusing electrode F with a focusing voltage the magnitude of which is adjusted in accordance with changes in the EHT supply by means of switches SC and S4 linked to switches S1 and S2 respectively.
Patent GB-488260-A (GB)
Title: Improvements in or relating to radio and like receivers
IPC: H03J7/04
Filed: 1936-12-31
Abstract: 488,260. Automatic tuning correction. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and KEALL, O. E. Dec. 31, 1936, No. 35887. [Class 40 (v)] A radio receiver having automatic control of frequency is also provided with an automatic muting system which is operative within a frequency range within or co-extensive with the control range of the A.F.C. system. In Fig. 1, the frequency discriminating network or error detector of a superheterodynereceiver comprises a parallel circuit A4 tuned to the intermediate frequency and coupled in series with a piezo-electric crystal A1 also resonant to this frequency. The output is applied to an anode-bend rectifier A8 the anode circuit of which includes a galvanometer A17 constituting a variable condenser connected in shunt with the tuning element of the local oscillator circuit at T1. The voltage across the cathode resistance A14 is applied in any manner to release the muting system over leads T2. The valve A3 is preferably a buffer valve between the I.F. stages and the discriminating network. The muting release potential is preferably applied to a pair of IF amplifiers with push-pull input and parallel output or vice versa, Fig. 2 (not shown). This circuit is normally balanced either in the high or low-gain condition of the valves, the balance being disturbed by the muting release potential applied to one valve only. The arrangement of Fig. 1, provides an asymmetric error detector characteristic operative for A.F.C. only for one direction of tuning. In Fig. 5 the switches SW1, SW2, operated by the tuning knob in accordance with the direction in which it is rotated, are provided to invert the discriminator characteristic in respect of frequency and sign. The circuit comprises a parallel circuit A4 coupled to the crystal circuit A1 the balancing condenser A2 being changed in value by switch SW1. The rectified output from diode A26 is applied to the A.F.C. valve A28 to control the local oscillator A29 ; the circuit of Fig. does not include any muting arrangements. Specifications 474,387 and 488,112 are referred to.
Patent GB-812476-A (GB)
Title: Improvements relating to the production of cobaltous hydroxide
Inventor: WEST DEWITT HENRY
IPC: C01G51/04
Filed: 1956-11-23
Abstract: Crystalline cobaltous hydroxide is precipitated from a hot aqueous solution of cobaltous sulphate with an excess of caustic alkali in the presence of 0.01 to 0.1 per cent, by weight of the cobaltous sulphate, of either methylene blue, eosin, Bismark brown, resorcinol, p-nitroso-dimethylaniline, neutral red, carmine, p-carmine, gentian violet and Wright's stain and subsequently removing the excess of alkali.  The preferred addition is eosin in an amount of 0.05 per cent and the solution of cobaltous sulphate treated should be as near neutral as possible.  According to an example, cobalt sulphate crystals were dissolved in water and the solution heated to 95 DEG C., whereupon 0.05 per cent of eosin was added and the solution treated with a spray of caustic soda with stirring.  A blue/pink precipitate was converted entirely to a pink precipitate by the addition of excess caustic soda and the excess alkali was thereafter removed by washing.
Patent GB-1518951-A (GB)
Title: Key assigner
IPC: G10H5/00
Filed: 1975-09-01
Abstract: 1518951 Electronic musical instruments NIPPON GAKKI SEIZO KK 1 Sept 1975 [5 Sept 1974 6 Sept 1974] 35929/75 Heading G5J The invention relates to a key assigner for an electronic organ. As described the apparatus receives 61 on/off signals from a keyboard 1 and delivers on 61 output lines N1-N61 up to eight signals representing actuated keys, the eight signals appearing on the selected lines one after another in synchronism with an eight phase clock. In use the eight signals enable in sequence respective gates KG1-KG61 (Fig. 7) to apply corresponding key voltages to capacitors C1-C8 which are selected in sequence by the eight phase clock and which then control oscillators VCO1-VCO8 to generate the right tones. The assigner (Fig. 2 comprises a set of 61 latch circuits 11 (Fig. 6, not shown) which store the previous states of the key switches; a comparator circuit 2 (Fig. 3, not shown) which compares each stored state with the current state of the keyswitch and produces change signals for any keyswitches that change; a priority circuit 4 which receives all of the change signals once every two complete clock cycles via a buffer memory 3 and delivers only one signal having the highest priority (e.g. corresponding to the highest note); a key code generator 5 which produces a six-bit binary code representing the key corresponding to the selected change signal; a comparator 7 which compares, during the first of the two complete clock cycles, the key code KC with each of eight such codes stored in a shift register 6 and generates, during the second of the clock cycles and in synchronism with the proper clock phase, either a release signal RLS if the code is already stored and therefore represents a released key or a signal NCL if the code represents a newly depressed key; a gate circuit associated with the shift register 6 operated by signal NCL to read into an unclaimed section of the register the new key code; a decoder 10 which sequentially decodes the eight codes stored in the shift register 6 to provide the eight keying signals on the lines N1-N61; and a control circuit 8 which causes those of the eight keying signals representing depressed keys to set the corresponding latch circuits 11. The circuit 8 comprises a shift register stepped in synchronism with the register 6 and storing signals indicating which of the eight codes represent actuated keys; it delivers a signal CLM during the corresponding clock phase for each such code. The signal CLM is also used to release envelope signals EG1-EG8 during the appropriate clock phases to determine the kind of tone generated. A counting circuit 12 determines which of the eight sections of register 6 has remained unclaimed longest (i.e. represents the key released longest ago) and causes the NCL signal to be produced in the corresponding clock phase and therefore the new key code to be stored in that section of the register 6.
Patent GB-1145911-A (GB)
Title: Process and apparatus for the manufacture of tubes from a thermoplastic synthetic material and tubes made by this process
IPC: B29C48/90
Filed: 1966-08-11
Abstract: 1,145,911. Sizing and cooling extrudates. STAMICARBON N.V. 11 Aug., 1966 [13 Aug., 1965], No. 36057/66. Heading B5A. A tube 6 of thermoplastics material, e.g. low pressure polyethylene, is extruded through a cooled sizing die 7, 8, the outer surface of the tube being kept in contact therewith by air or inert gas pressure admitted via conduit 9, and the arrangement is such that the tube leaves die 7, 8 with its outer surface cooled below the softening point of the material while its inner surface is still at a temperature above this point. Thereafter the tube surface temperatures are allowed to equalize essentially by heat flow from the inner to the outer surface and on equalization the tube is cooled to ambient temperature by passage through a cooling bath 11. A temperature-time diagram is given, Fig. 2 (not shown), where (K) and (N) represent the first and second forced cooling stages respectively, (E) the equalization stage and curves (A) and (B) correspond to the inner and outer surfaces respectively.
Patent GB-790446-A (GB)
Title: Preparation of 9ª‰, 11ª‰-oxido steroid compounds
IPC: C07J75/00
Filed: 1955-12-16
Abstract: 9b ,11b -Oxido steroids of the pregnane series are prepared by reacting a 9a  - bromo-11b  hydroxysteroid with a strong base preferably in an organic solvent and at a temperature between 0 DEG and 40 DEG  C. (particularly 20-30 DEG  C.).  The strong bases exhibit a pH > 10 in aqueous solution at 27 DEG  C. and in 0.1 per cent concentration; specified bases are the hydroxides and alkoxides of alkali and alkaline-earth metals, alkali metal carbonates and quaternary ammonium hydroxides.  Specified organic solvents are alkanols containing from one to eight carbon atoms, chloroform, ethylene dichloride, tetrahydrofuran and dioxan, and water may be present to increase the solubility of the base, particularly in the case of carbonates.  The process is applicable to 9a -bromo-11b -hydroxy-pregnane derivatives which may be further substituted, e.g. by 3,6 and/or 20-keto groups, 3,4,6,17,20 and/or 21-hydroxy groups, aldehyde groups, 3-ethylenedioxy or 3,3-dimethoxy groups, and may contain double bonds at the 4,5,6 and/or 16-positions, numerous starting materials being listed. In examples: (1) 9a -bromo-4-pregnene-17a ,21-diol - 3,20 - dione - 21 - acetate in tetrahydrofuran is treated with sodium methoxide in methanol, excess base destroyed with acetic acid and mixture after concentration extracted with chloroform, yielding 9b ,11b -oxido-4-pregnene - 17a ,21 - diol - 3,20 - dione, which is reacetylated to the 21-acetate; (2) 9a -bromo-4-pregnene - 11b ,17a ,21 - triol - 3,20 - dione 21-acetate in tetrahydrofuran is treated under nitrogen with potassium t-butoxide in t-butanol, mixture acidified, evaporated and residue acetylated to 9b ,11b -oxido-4-pregnene-17a ,21-diol-3,20-dione 21-acetate; (3) and (4) as in (2) using as alternative bases KOH in methanol, and aqueous potassium carbonate; (5) 9a -bromo-4-pregnene - 11b ,17a ,21 - triol - 3,20 - dione is treated with methanolic barium hydroxide to yield 9b ,11b  - oxido - 4 - pregnene - 17a ,21-diol-3,20-dione.
Patent GB-1533546-A (GB)
Title: Air hydraulic brake actuator
IPC: B60T13/58
Filed: 1977-08-31
Abstract: 1533546 Actuator stops FORD MOTOR CO Ltd 31 Aug 1977 36275/77 Heading F1D In a pneumatic actuator 12 for operating the piston 14 of an hydraulic master cylinder, the actuator push-rod has a stop surface 32c engageable with the periphery of a hole 36 formed in a mounting surface 20 to locate the head 32b of the pushrod just clear of the piston 14 in the inoperative position.
Patent GB-882672-A (GB)
Title: Improvements in or relating to rectoscopic devices
IPC: A61B1/31
Filed: 1959-10-26
Abstract: 882,672. Surgical drainage apparatus ALBERTI, F. Oct. 26, 1959, No. 36278/59. Class 81 (2). A combined rectoscope and fluid withdrawing device comprises a suction tube f with an eggshaped end g which has apertures e and is at least partially transparent, a container k connected with the tube for receiving fluid withdrawn through the apertures and a recloscope having an objective and illuminating means in the egg-shaped end of the tube. In use, the egg-shaped end is inserted in the rectum and a suction pump is connected to a portion h at the other end of the tube f. The rectoscope includes a lamp and a mirror m and an eyepiece n is housed in the tube. The tube has an aperture i through which fluid withdrawn from the rectum enters the container k.