baber/WOPTO huggingface dataset:
Patent GB-737339-A (GB)
Title: Improvements in or relating to feed pump installations for condensing locomotives
Inventor: HANY HARALD
IPC: F04D9/00
Filed: 1953-06-15
Abstract: 737,339. Condensing locomotives. HENSCHEL & SOHN GES. June 15, 1953, No. 16470/53. Class 79(1). In a condensing locomotive having an engine and a tender, each feed pump 1 draws directly from at least one condensate collector tank 2 disposed on the engine and communicating through a pipe connection 3 with a condensate collector tank 4 on the tender. In the construction shown, two tanks 2 are provided by a drum divided by a baffle 6. Each end face of the drum is closed by the flange of the housing of a respective pump 1. The pipe 3 is carried to a point close to the inlet of the pump and has a flared outlet 3<SP>1</SP>. Each tank 2 is connected by a pipe 5 to atmosphere. The baffle 6 is provided with valves (not shown) which permit communication between the two tanks 2. The pipe connections 3 may be arranged so that each pump can be connected with either connection.
Patent GB-1096180-A (GB)
Title: Improvements in or relating to maser oscillators
Inventor: HARGROVE LOGAN EZRAL
IPC: H01S3/083
Filed: 1965-04-20
Abstract: 1,096,180. Lasers. WESTERN ELECTRIC CO. Inc. April 20, 1965 [April 24, 1964], No. 16476/65. Heading H1C. The output of a maser oscillator may be stabilized in respect of the frequency and relative amplitudes of the longitudinal modes by amplitude modulating the output at a frequency given by where n is an integer, c the velocity of light, and L the effective cavity length. As shown in Fig. 1, an ultrasonically excited quartz crystal diffraction element 15 is located within the optical cavity of an HeNe gas laser defined by two spherical reflectors 13, 14. Operating conditions are given. A rotation rate sensing ring laser is described with reference to Fig. 9 (not shown).
Patent GB-1418538-A (GB)
Title: Method of nitrating 2-methylimidazole to form 2-methyl-5- nitroimidazole
IPC: C07D233/92
Filed: 1973-04-06
Abstract: 1418538 2 - Methyl - 5 - nitroimidazole ZAKLADY CHEMICZNE ASEPTA SPOLDZIELNIA PRACY 6 April 1973 16476/73 Heading C2C  2 - Methyl - 5 - nitro - imidazole is prepared by reacting 2-methyl-imidazole with a molar excess of sulphuric and nitric acids, the reaction being moderated by feeding additional nitric acid into the reaction zone during the course of the reaction, and or by feeding into the reaction zone in addition to the reactants a solution obtained from a previous nitration of 2-methylimidazole; this solution may be fed before commencement of reaction, or during the reaction. The nitric acid preferably has a specific gravity of 1À47-1À52. The sulphuric acid is usually added gradually, and the temperature put allowed to exceed 110‹ C., volatiles evolved being condensed and returned to the reactor, though towards the end of the reaction return of volatiles may be stopped and the temperature allowed to increase to 130-150‹ C. Product may be recovered by neutralizing the solution with ammonia.
Patent GB-957361-A (GB)
Title: Improvements in or relating to processes for the production of melamine
IPC: B01J8/02
Filed: 1962-04-30
Abstract: Melamine is produced by heating urea under pressure in a vessel lined with non-metallic materials whereby the heat is generated at least in part by passing an A.C. current through liquid urea reactant.  The reaction may be performed so that liquid urea flows counter-current to the gaseous phase.  This gaseous phase, consisting of ammonia and carbon dioxide, may be cooled without releasing the pressure and reconverted into urea which is recycled to the reactor. A catalyst may be used e.g. a metal or oxides or salts of a metal (see Specification 754,720).
Patent GB-1162636-A (GB)
Title: Communication Systems
Inventor: HAWES KENNETH AUBREY
IPC: G08B26/00
Filed: 1966-04-14
Abstract: 1,162,636. Synchronous movements. SATCHWELL CONTROLS Ltd. 5 April, 1967 [14 April, 1966], No. 16478/66. Heading H2L. In a monitoring system, a motor 1 is located at a remote station and drives a permanent magnet assembly adjacent to reed switches 2, 3, 4, which are actuated in sequence. Motor 8 is located at a central control room and actuates switches 9, 10, 11 in sequence. If a detector switch 5 closes, a circuit is completed through switches 2, 9, and line 20 to indicator assembly 12 which is maintained energized through contact 15 until the detector associated with the switch 5 is monitored again. This procedure is repeated with other detector switches 6 and 7. The motors are kept in synchronism by vibrating switches 18, 19, the motor 8 being deenergized, if the motors fall out of step, until synchronism is re-established. In a modification, the switches 2-4 and 9-11 are replaced by magnetically operated reed switches having two pairs of contacts.
Patent GB-165831-A (GB)
Title: Improvements in and relating to magnetic chucks
IPC: B23Q3/154
Filed: 1919-07-02
Abstract: 165,831. Marks, E. C. R., (Taft-Peirce Manufacturing. Co.). July 2, 1919. Electromagnetic chucks and work-holders.-A circular series of magnetic circuits is arranged so that each pole-piece is separately excited and forms a common path for two adjacent circuits, a portion of each circuit extending over the faceplate of the chuck. The core-ring 8, Fig. 5, comprises a number of radial sector-shaped cores 9 over which the energizing-coils 11, Fig. 4, are fitted, these being connected so that adjacent core-ends are of opposite polarity. The face-plate, Figs. 1 and 4, comprises a similar number of polepieces 26, the lower surfaces 28 of which fit exactly over the sector-shaped cores, whilst the upper portions are branched or of tree-like formation, the interstices being filled in with non-magnetic material 36, which also separate the poles from the ring 24 and hub 25 of the face-plate. The core-ring and pole-pieces are therefore magnetically insulated from the housing or body part 1, 2, 4, to which the face-plate is secured by a central bolt 89, and a number of peripheral screws 40, Fig. 1. The core ring rests upon non- magnetic washers 7, and is fixed by machine screws 10 to the base 4, of the housing. The collector-rings 18, 19 are embedded in a ring 22 of insulating material, which is removably secured to the housing by screws 23. The energizing- coils 11 are connected in groups, leads being taken to a. switch 12 by means of which they can be thrown into series or parallel according as the current supply is at 220 or 110 volts.
Patent GB-658590-A (GB)
Title: Tool-holder attachment for lathes and like machine tools
IPC: B23Q35/18
Filed: 1949-06-22
Abstract: 658,590. Lathes; copying. LANG & SONS, Ltd., J., BLACKBURN, D. M., and LANG, J. B. June 22, 1949, No. 16564. [Class 83 (iii)] A copy turning tool-holder attachment for lathes and like machine tools includes a cylinder-and-piston unit adapted to be mounted on a lathe saddle or the like, with the axis of the unit set obliquely to the turning axis of the machine, and is characterized in that the piston component is equipped at one end with the tool-holder proper and at the other end with a control valve device for controlling the leakage of compressed air from the cylinder component by means of a template and follower. The piston component 17 carries at its front end a holder 12 for a tool 23 and is slidable within a cylinder 10 adapted to be secured to the saddle of a lathe. A first piston 18 is provided at the rear end of the piston component and a larger diameter piston 19, open to atmosphere on one side, is provided at the other end. Compressed air is led in at point 22 and this may be released to retract the tool by a hand-operated valve 42. The air supply operates on both faces of piston 18 and passes to forward piston 19 through a duct 28. This latter is also led to an escape orifice 29 controlled by a valve 32 pivoted at 30 and normally held closed by an air bellows 34 supplied from the duct 28. Contact of the lower end 14 of the valve member with a template 15 tilts the valve and allows air to escape until corresponding movement of the piston member restores equilibrium. A further piston member 35 may be provided within an oil-filled cylinder unit 36 to damp out undue movement when the cutting pressure is irregular, a throttling valve 38 being provided to regulate the flow of oil from one side of the piston 35 to the other.
Patent GB-1460614-A (GB)
Title: Production of crystalline sugar
IPC: C13B30/02
Filed: 1974-04-16
Abstract: 1460614 Production of crystalline sugar TATE & LYLE Ltd 7 April 1975 [16 April 1974] 16572/74 Heading C6B  Solid crystalline sugar is produced from a supersaturated sugar syrup by subjecting the syrup to a shear force having a velocity gradient of at least 5000 cm/sec/cm to induce catastrophic homogeneous nucleation of sugar and the syrup is thereafter allowed to crystallize. The shear force may be applied by a colloid mill or a homogenizer. The nucleated syrup may be discharged on to a moving belt conveyer. The sugar syrup may have a temperature of at least 123‹C, a sugar concentration of at least 90‹ Bx and/or contains impurities in an amount less than 15 wt. per cent of solids.
Patent GB-318671-A (GB)
Title: Improvements in and relating to the ventilation of dynamo-electric machinery
IPC: H02K1/20
Filed: 1928-06-08
Abstract: 318,671. Parsons, Sir C. A., and Rosen, J. June 8, 1928. Armatures and field magnets, cooling.-A tubular baffle or guide is formed with ducts or perforations and is disposed coaxially in the air gap to direct air to parts of the machine. The invention is applicable to the cooling system described in Specification 301,771, and in one form comprises a tape T of presspahn or of the material known under the registered Trade Mark " Bakelite " made in sections. Longitudinal perforations T<1> and cross ducts T<2> registering with air passages N<1> in the stator are provided. A seriesparallel arrangement of the cross ducts, core passages and co-operating stator passages L<1>, L<2>, L<3> may be used by forming the tube with imperforate annuli T<3> which are positioned opposite the core sections R<1>, R<2>. The cross ducts may be extended axially or holes may be provided out of alignment with the ducts to expose the rotor G to cooling air. In a modification, longitudinal grooves conforming in breadth with the configuration of the core teeth may be provided.
Patent GB-160389-A (GB)
Title: Improvements in steam-heated heating systems
IPC: F24D1/00
Filed: 1920-06-21
Abstract: 160,389. Codd, T. J., and Johnson, H. June 21, 1920. Heating by circulation of fluids.-Heaters or radiators H supplied with steam from a boiler B by mains S, S<1> are connected with a return main C<2> and receiver P through steam traps T and also with a second return main C<4> and vacuum pump VP, by pipes C<3> through automatic or thermostatic valves V. The heaters are operated under pressure, connected with the return main C<2> or vacuum when connected with the main C<4>. The change over may be effected by hand control of valves or may be made automatically according to the temperature of the condensate. Specifications 137,571, 158,009, and 166,480 are referred to.
Patent GB-1429581-A (GB)
Title: Siomycin a derivatives and the production thereof
IPC: A61K31/215
Filed: 1974-04-17
Abstract: 1429581 Siomycin A derivatives SHIONOGI & CO Ltd 17 April 1974 [18 April 1973] 16736/74 Heading C2A [Also in Division C3] The invention is directed to a new antibiotic which is a half ester of siomycin A and an aliphatic dicarboxylic acid containing 2 to 15 carbon atoms, a cycloalkane dicarboxylic acid or a monocyclic aryl dicarboxylic acid. The half ester may be prepared by reacting siomycin A with a dicarboxylic acid selected from one of the above types or an active derivative of such an acid, optionally in the presence of a catalyst, and in an inert solvent. An inorganic salt may be prepared by reacting the half-ester with an appropriate inorganic base. There is exemplified the preparation of the following, a half ester of siomycin A with (i) butanedioic acid, (ii) pentanedioic acid, (iii) hexanedioic acid, (iv) heptanedioic acid, (v) octanedioic acid, (vi) dodecanedioic acid, (vii) cis-butenedioic acid, (viii) cis-2-methylbutenedioic acid, (ix) cyclohexane- 1,2-dicarboxylic acid, and (x) 1,2-benzenedicarboxylic acid, and the sodium salts of (i) the half ester of siomycin A with hexanedioic acid and (ii) the half ester of siomycin A with butanedioic acid. The half ester or salt thereof may be mixed with a pharmaceutically acceptable diluent, carrier or excipient to form a pharmaceutical composition.
Patent GB-692267-A (GB)
Title: Improvements in and relating to the production of metal and other sheet and strip
Inventor: HESSENBERG WILFRID CECIL FREDE
IPC: B21C37/02
Filed: 1950-07-05
Abstract: 692,267. Automatic control systems; thickness. BRITISH IRON & STEEL RESEARCH ASSOCIATION. June 27, 1951 [July 5, 1950], No. 16787/50. Class 38 (iv). [Also in Groups V and XXII] A method of manufacturing sheet or strip material by rolling or by drawing through adjustable aperture dies, comprises adjustment of the roll or die setting with any variation in separating force so that an increase or decrease in separating force is accompanied by a decrease or increase respectively in roll or die setting which is equal to the change in separating force divided by the mill spring, whereby the thickness of the issuing sheet or strip is maintained substantially constant. A rolling mill comprises pass adjusting, fluid-operated rams 14 bearing on members 16 carrying electric resistance strain gauges 17, whose resistance varies with changes in the roll separating force. Meters 18 mounted at each end of the rolls between roll chocks 11 and the roll frame 13 respond to changes in the roll setting and comprise a rod 19 engaging cantilever arms 22 carrying electrical resistance strain gauges 23, whose resistance changes with changes in the roll setting due to flexing of the arms 22 by movement of the rod 19. A water-cooling jacket 24 surrounds the meter housing 20. The strain gauges 17 and 23 are incorporated in temperature compensated Wheatstone bridge networks 25, 26 respectively, whose amplified and demodulated outputs are combined in opposition and fed to a coil 32 wound on a spring-loaded core 33 movable in the field of a permanent magnet 34. Any change in separating force occasioned by a variation in outgoing thickness from the desired value will result in an out-of-balance voltage in the coil 32 causing a movement of the piston 35 of a differential fluid valve 36 controlling supply of low pressure fluid to one side or the other of a double-acting piston 38, the pressure acting on said piston being modified by a fluid intensifier 39 connected to the rams 14, thereby causing a change in roll setting in a sense to restore the out-ofbalance voltage to zero and maintain the desired relationship between separating force and roll setting. The method may be applied independently to each of the roll adjusting mechanisms which act on the two ends of the roll, to ensure that the thickness of the two edges of the strip remain equal to one another. Specification 626,206, [Group XXXVI], is referred to. The Provisional Specification refers to Specification 681,373.
Patent GB-107523-A (GB)
Title: Apparatus for Mixing Gas and Air.
Inventor: REEVES EDWIN ARTHUR
IPC: B01F23/10
Filed: 1916-11-23
Abstract: 107,523. Reeves, E. A. Nov. 23, 1916. Mixing fluids in flow.-Relates to apparatus for mixing gas and air in which the relative proportions of gas and air may be varied, irrespective of the pressure under which the gas or air is admitted. The casing 1, Figs. 1 and 4, is divided by partitions 2, 3 into compartments 4, 5, 6 containing flexible diaphragms 7 which operate vertical shafts 9, 10, 11 coupled to inlet and propertioning valves in the chambers of a gallery or upper part 17 mounted on the casing 1. The diaphragms in the gas and air chambers 4, 5 are in communication and control the inlet valves to the gallery 17, while the diaphragm in the chamber 6 controls the outlet valves. Gas and air are admitted by lateral pipes 30, 31, Fig. 2, to the chambers 24, 25, Figs. 3 and 5, of the gallery, and the mixture passes out through the chamber 23 and pipe 26 to a suction pump which forces it to the place of consumption. When the supply is turned on, the vacuum created in the chambers 23, 6, which communicate by a pipe 32, causes the shaft 11 to open the valves 38, 39 and put the chambers 21, 22 into communication with the lower chambers 4, 5, whereupon the shafts 9, 10 raise the valves 49, 50 and allow gas and air to pass from the chambers 24, 25 into the chambers 22, 21 and thence through the ports 28, 29 into the chamber 23. The valves 38, 39, which work over the triangular ports 28, 29, are operated by links 44, 45 and arms 42, 43 from shafts 40, 41. A shaft 66, rocked by links 68, 69, 67 from the shaft 11, carries an arm 74 pivoted to a link 76 which is adjustably secured to a curved arm 75 on the shaft 40 so that the stroke of the valve 38 can be regulated. Arms 83, 84 on the shafts 41, 66 are connected by a link 82, the length of which is adjustable. A spring 72 causes the shaft 11 to exert a compression action on the diaphragm in the chamber 6. The valves 49, 50 are hinged to arms 51, 52 on shafts 54, 53, which carry arms 57, 60 connected by links 58, 61 to arms 56, 59 on the shafts 8, 10 respectively; and a spring 64 connects arms 62, 63 on the shafts 9, 10. The air and gas entering through ports into the chambers 21, 22 respectively are at a balanced pressure as the diaphragms which operate the valves 49, 50 are in communication, so that the amount of gas and air that passes through the triangular ports 28, 29 is in proportion to their exposed areas.
Patent GB-248985-A (GB)
Title: Improvements in or relating to barber chair attachments
IPC: A47D11/02
Filed: 1925-06-30
Abstract: 248,985. Besancenez, J., and Dale, A. June 30, 1925. Hairdressers' seats; nursery seats; folding seats. - A barber's ohair is provided with an auxiliary seat, for use by children, which seat is adopted to extend across the arm rest of the chair when in the position of use and to be slid through a guide on one arm rest so as to hang down alongside of the chair when not in use. The auxiliary seat 14 is shown, slidable through the slotted guide 9, 10 on an arm-rest R into an out-of-use position, Fig. 2, or a position of use, Fig. 3.
Patent GB-682626-A (GB)
Title: Process for the substantially complete conversion of fatty material to partial esters of polyhydric alcohols
IPC: C11C3/06
Filed: 1950-07-06
Abstract: Fatty acid partial esters of polyhydric alcohols are made by reacting fatty material and an alcohol (preferably a polyhydric alcohol), in presence of an ester-interchange or esterification catalyst under conditions causing substantial formation of a partial ester in the composition resulting from the reaction, separating said partial ester from said composition whilst said catalyst is in active form by spreading said composition in a thin film and vacuum distilling said partial ester from said film of composition at a temperature substantially below the decomposition temperature of said active catalyst leaving a distillation residue containing said catalyst, replenishing said distillation residue with additional fatty material and alcohol and repeating said process at least until the amount of said partial ester being distillate from said composition is substantially equivalent to the amount of said fatty material being added to said residue.  An excess of the alcohol may be employed, e.g. of 40-200 per cent.  Excess alcohol may be removed prior to separation of the partial ester, e.g. by phase separation.  The partial ester may be separated by centrifugal vacuum distillation, any alcohol not otherwise removed being first separated in the same way.  The process may be continuous. Ester-interchange catalysts preferred are calcium, strontium, and barium oxides and hydroxides, but inorganic acids, acid sulphuric esters, sulphonic acids, sodium hydroxide, sodium methylate, tetramethylammonium ammonium hydroxide, aluminium chloride, sodium carbonate, and various strontium salts, are also referred to. Fatty materials specified are fish oils, whale oil, tallow, wool grease, hydrogenated tallow, soya bean oil, cottonseed, tung, coconut, palm, corn, olive, castor, and peanut oils, hydrogenated vegetable oils or shortenings, and free acids such as stearic, oleic, lauric, palmitic, and myristic acids.  Alcohols specified are methyl and ethyl alcohols, glycerol, sorbitol, mannitol, diglycerol, polyglycerols, trimethylene glycol, ethylene glycol, propylene glycol, diethylene glycol, polyethylene glycols or polypropylene glycols, and pentaerythritol.  In an example, soya bean oil, glycerine, and strontium oxide are reacted. Specification 682,625 is referred to.
Patent GB-624285-A (GB)
Title: Improvements in or relating to combustion apparatus
IPC: F23R3/00
Filed: 1947-06-26
Abstract: 624,285. Generating combustion products under pressure. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. June 26, 1947, No. 16899. Convention date, July 1, 1946. [Class 51 (i)] The frusto-conical walls 31, 32, Fig. 2, of the annular combustion chamber of a gas turbine plant are formed with diagonal fluted ribs 41 of U-shaped cross-section as shown in Fig. 3. The ribs in one wall may be inclined oppositely to those in the other wall. The ribs reinforce the walls and provide for expansion in both radial and longitudinal directions.