baber/WOPTO huggingface dataset:
Patent GB-876958-A (GB)
Title: Improvements in and relating to chromium-containing addition agents
IPC: C22C35/00
Filed: 1959-08-27
Abstract: A sintered addition agent suitable for the electric-furnace production of chromium-containing steels or ferro-alloys consisting of oxides and carbides of iron and chromium and free carbon, has a composition such that 15 to 40% is combined chromium, (of which 15 to 80% is acid soluble and the remainder acid insoluble), from 12 to 60% is combined iron (of which at least 85% is acid soluble and the remainder acid insoluble), sufficient free carbon so that the total carbon is at least 5% in excess over that necessary to give a 1 to 1 gram-atom ratio of carbon to oxygen in the agglomerate, the remainder being the carbon and oxygen combined with the iron and chromium therein and incidental impurities.  The addition agent may be prepared from a comminuted mixture of chrome ore, iron ore and carbon in suitable proportions heated in an inert atmosphere at 1000 DEG C. to 1300 DEG C., the iron and chromium oxides being partially-reduced to the carbides in the solid state, and the product cooled, if desired. The comminuted mixture may be mixed with a non-interfering binder and pelletized prior to heating.
Patent GB-714181-A (GB)
Title: Improvements in spacing rings particularly for oil or like seals
IPC: F16J15/32
Filed: 1951-12-14
Abstract: 714,181. Oil seals. WARING, A. Dec. 15, 1952 [Dec. 14, 1951], No. 29287/51. Class 122(5) [Also in Group XXII] The sealing ring 6 of an oil seal is held against one wall of its casing by a corrugated spacing ring 1, the walls 4, 5 of the corrugations being stiffened by indentations, therein. The crests 3 and troughs of the corrugations are V-shaped in plan, being inclined outwardly from the centre. The ring is formed by passing metal strip between shaped rollers, which may be double helical gear wheels, bending the strip in a circle and spot welding the ends together. The inclined walls of the crests and troughs of the corrugations may be indented to form circumferentially directed ribs.
Patent GB-1505268-A (GB)
Title: Coke oven installations
IPC: C10B33/00
Filed: 1975-07-11
Abstract: 1505268 Removing dust from coke ovens HARTUNG KUHN & CO MASCHINENFABRIK GmbH 11 July 1975 [16 July 1974] 29326/75 Heading F4X A coke oven installation has a stationary gas-collecting main 5 extending along one side of the battery of coke ovens 19. The collector main has a longitudinal slot 6 closed by resilient sealing lips 7a and 7b. A gas transfer unit for transferring dust-laden gases given off from the coke travels along a path adjacent to the main and includes a connecting tube 11 connected to a discharge tube 1. The connecting tube has a horizontal portion, with a cross-section which tapers in each direction to painted ends 21, that extends through the slot 6 into the gas main 5. As the gas transfer unit travels along the main, the painted ends 21 of the connecting tube parts the lips 7a and 7b. Rollers 14 mounted on a trolley 2 may be fitted to press the sealing lips together in front of and behind the connecting tube 11. Flaps 12 on the wall of the collector main 5 that are opened by a yoke 10 fixed to the connecting tube 11 may be fitted to protect the sealing lips 7a and 7b from hot gases.
Patent GB-850325-A (GB)
Title: Production of a new antibiotic flavensomycin
IPC: B22C9/10
Filed: 1957-09-18
Abstract: <PICT:0850325/IV(b)/1> An antibiotic flavensomycin having fungistatic, fungicidal and insecticidal properties is obtained by cultivating a flavensomycin producing stain of streptomyces cavourensis especially NCIB 8918 in an aqueous nutrient medium containing a source of carbon, nitrogen and mineral salts under surface or submerged, and preferably aerobic, conditions.  The pH is preferably maintained at 7,8 8, the temperature is 24 DEG C. to 32C DEG . and preferably 27 DEG  to 28 DEG  C., the duration of fermentation is 3 to 7 days.  The preferred medium contains meat peptone, corn steep liquor, maltose and water.  For certain uses, e.g. insecticide, the broth may be used as such or after clarification.  Flavensomycin may be isolated from the clarified broth by extraction with a water-immiscible solvent at pH 7,5 to 8,5 and especially 7,5 to 7,8.  Specified solvents are benzene (preferred), ether, chloroform, butanol, ethyl acetate and gasoline. The extract is concentrated in vacuo and then purified by adsorption on alumina preferably after a preliminary purification by adding petroleum ether to precipitate the antibiotic which is then dissolved in acetone and re-precipitated by the addition of petroleum ether. The second precipitate is dissolved in benzene and treated with alumina preferably saturated with benzene (or other solvent X used in the preparation of the antibiotic solution), the alumina is washed first with benzene (or other solvent X) and then with ethyl acetate, the flavensomycin being eluted with methanol and recovered from the eluate by removing the solvent.  Flavensomycin is an odourless lemon yellow crystalline powder, colour stable in acid and alkali; unstable in aqueous solution, stable as a dry powder; soluble in water, methanol, ethanol, propylene glycol, pyridine, n-propanol, n-butanol, amyl alcohol, glacial acetic acid, ethyl acetate, acetone, chloroform, dioxane and benzene; insoluble in glycerol, carbon tetrachloride, carbon disulphide, diethyl ether, hexane, gasoline and heavy hydrocarbons; having the elemental analysis C=63,73% H=8,04% N=2,27% and O= 25,96% having an ultra-violet adsorption spectrum showing a maximum at 251 Angstom units and infra-red absorption spectrum with absorption maxima as shown in the Figure.
Patent GB-1483977-A (GB)
Title: Intaglio printing plates
IPC: B41N1/06
Filed: 1975-07-14
Abstract: 1483977 Printing plates DE LA RUE GIORI SA 14 July 1975 [30 July 1974] 29445/75 Heading B6C An intaglio printing plate has an overall layer 2 of a first material which, upon wetting, becomes ink-repellent, and, overlying this in the intaglio recesses, an ink-accepting second material 3. The first layer may be chromium or anodized aluminium. The second layer may be a heat-hardened or light-hardened varnish. The plate may be made by applying material 3 overall, and removing by abrasion or solvent except in the intaglio areas. The layer may be partially hardened prior to removal, e.g. in a ball-graining machine, and hardening then completed. The second layer may alternatively be a chemically or electrolytically deposited metal, e.g. Cu, Ni or Fe.
Patent GB-305089-A (GB)
Title: Apparatus for uniformly evaporating liquids, especially for uniformly charging gaseswith vapours
IPC: B01F23/10
Filed: 1928-10-12
Abstract: 305,089. Mezger, R. Jan. 30, 1928, [Convention date]. Levels, regulating.-Apparatus for charging gases with vapours, e.g. saturating coal gas with xylol vapour, comprises a vaporizer connected with a constant level liquid supply. The vaporizer D communicates with the gas pipe A through a branch pipe E, and is fed with liquid from an auxiliary tank L supplied from an overhead storage tank O. It is surrounded by insulating material G, and heated by an electric radiator H; tumbler switches J cut off the current if the vaporizer is emptied. A U-shaped tube K connects the vaporizer with the tank L which is connected by a tube M with the tank O. The tanks are also connected by a narrow bore tube R, the flared mouth of which opens in the tank at a slightly higher level than the mouth of the tube M. The gas pipe is connected by a tube X with the tank L, and if the liquid level falls below the pipe R gas passes to the space above the liquid in the tank O. An overflow pipe T leads from the vaporizer to a collecting-tank u.
Patent GB-1401214-A (GB)
Title: Control valve
IPC: F16K11/07
Filed: 1972-06-23
Abstract: 1401214 Valves BORG-WARNER CORP 23 June 1972 [26 July 1971] 29503/72 Heading F2V A valve for us in load responsive systems which selects the load actuating pressure from a work port for use as a control signal comprises a body 13 with an inlet port 36, a work port 34a, an exhaust port 32 and a control port 38, a spool 42 slidably fitted in a bore which intersects all the ports having a neutral position where the inlet port is isolated from the work port and the exhaust port and the control port is connected to the exhaust port via passage 48a, a first operating position where the work port is connected to the inlet and to the control port and a second operating position where the work port is connected to the exhaust port. In the described embodiment second inlet, work and exhaust ports are provided such that the work ports connect with inlet and exhaust ports in turn. The spool of Fig. 3 performs the same function as that of Fig. 1, excepting that the ball 79 closes one of the passageways instead of that passage being obturated by movement of the spool. The remainder of the system comprises a pump 10 with a displacement control system 15 which includes a stroke piston 16, spring 17 and destroke piston 18, a sensor valve 12 (symbolically indicated) and a fluid motor 14.
Patent GB-522471-A (GB)
Title: Metered lubricating system for rotary pumps
IPC: F04C15/00
Filed: 1938-10-12
Abstract: 522,471. Rotary engines. FULCHER, F. C. Oct. 12, 1938, No. 29555. Drawings to Specification. [Class 110 (ii)] Rotary pumps and motors as described in Specifications 522,470, 522,472, [Group XXIV], 522,473, and 529,503 are lubricated by oil the flow of which is controlled by adjustable valves or interchangeable jets. Oil is delivered through a bore in the casing to an annular groove in the end of the rotor periphery which rotates within the neck of the casing and thence by oil passages to the bearing surfaces. Oil escapes along the periphery of the rotor, which does not contact with the casing neck, in the form of a mist and lubricates the parts to which there are no oil passages.
Patent GB-1110979-A (GB)
Title: Dimerisation process
Inventor: HAMBLING JAMES KEITH
IPC: C08F4/70
Filed: 1965-07-14
Abstract: An alpha-olefin of at least 3 carbon atoms is dimerized to a product consisting predominantly of branched chain dimers having internal unsaturation but also containing linear dimers in the presence of a catalyst comprising the reaction product of a reducible salt of a Group VIII metal and a reducing agent, supported on activated carbon, at - 40 to + 200 DEG  C. and under a pressure such that the reactants are maintained in the liquid or partially condensed phase.  The reducible salt may be cobalt or nickel chloride and the reducing agent aluminium diethyl monochloride or aluminium triethyl, and the two are suitably used in molar ratio salt : reducing agent 2 : 1 to 1 : 10. The Group VIII metal may constitute 5-30% by weight of the salt/activated carbon component of the catalyst.  Suitable pressures are 200-2000 p.s.i.g.  An inert saturated or halogenated hydrocarbon diluent such as heptane may be used.  Butene-1 and propylene are specified as feeds.  In Examples 1 and 2 propylene is dimerized to yield a hexene fraction comprising 83% and 75% branched hexenes respectively.
Patent GB-1357499-A (GB)
Title: Production of titanium tetrafluoride
IPC: C01G23/02
Filed: 1972-06-27
Abstract: 1357499 Titanium oxide and tetrafluoride BRITISH TITAN Ltd 27 Feb 1973 [27 June 1972] 29944/72 Headings C1A and C1N TiF 4  is prepared by heating together ferric fluoride and an iron containing titaniferous material and thereafter separately recovering the resulting TiF 4  and ferric oxide. Reaction may be effected at 500-1500 C. In a solid : solid reaction, the reagents are preferably in particulate form. It is preferred to pass FeF 3  in vapour from over a fluid bed of solid titaniferous material, e.g. ilmenite or leucoxene. The titaniferous material is preferably preoxidized to convert the Fe to the ferric state. The TiF 4  produced may be recovered in vapour form and oxidized to TiO 2  directly or by thermal hydrolysis. The residual ferric oxide may be reconverted to FeF 3  by reaction with aqueous HF, or by reaction with NH 4 HF 2  at 120-300 C. to form an intermediate (NH 4 ) 3 FeF 6  which is further heated (500-700 C.) to yield NH 4 F and FeF 3  FeF 2  for re-use in the process. The TiF 4  may be hydrolysed to TiO 2 .
Patent GB-1435342-A (GB)
Title: Adjustable fixture system for illumination apparatus
IPC: F21V21/04
Filed: 1973-06-25
Abstract: 1435342 Releasable fastenings ITT INDUSTRIES INC 25 June 1973 [26 June 1972] 29964/73 Headings E2A and E2B [Also in Divisions F2 and F4] An adjustable supporting system for mounting the rectangular housing 1 of an illumination apparatus in a false or drop ceiling 3 supported between parallel iron members 4 which may form a lattice structure, comprises a number of removable rigid supporting rods 6 which pass outwardly through the housing wall so that they bear on the iron members 4, respective sets of holes 9, 10, 11 &c being provided in the housing wall for each supporting rod 6 to relatively coarsely adjust the housing with respect to the iron members, and each supporting rod 6 engaging a respective threaded rod 7 which is rigidly secured to the housing 1, each rod 7 having at least one adjustable fixing element, e.g. nuts 12, 13, which permits relatively fine adjustments of the supporting rod 6 while bearing on the iron members 4. As shown, the fixing element comprises setting and locking nuts 12, 13 between which the open ear-shaped end of the rod 6 is inserted and located. The adjustments of the system permit the housing flange 2 to engage the ceiling 3 for a range of depths thereof.
Patent GB-484413-A (GB)
Title: Improvements in and relating to electric motor control
IPC: H02P3/20
Filed: 1936-11-04
Abstract: 484,413. Control of A.C. commutator motors. BRITISH THOMSON-HOUSTON CO., Ltd., and ADKINS, B. Nov. 4, 1936, No. 30054. [Class 38 (iii)] [Also in Group XXXV] For speed control during normal running the commutator of a shunt polyphase commutator motor 1 is connected to an induction regulator, transformer, or auxiliary stator winding 9, but for reducing the motor speed quickly to zero or a predetermined low value, a switch 7 is thrown over so that the commutator is disconnected from the regulator 9 and connected to a transformer, induction regulator or auxiliary stator winding 4 which supplies a voltage approximately equal to the motor secondary voltage at stand still, and opposes it. Where the regulator 9 is an induction regulator, the regulator 4 may be formed by additional windings on it. Resistance, reactance, or capacity 12 may be inserted to reduce the braking torque and a single regulator 9 and impedance 12 may serve a, number of motors.
Patent GB-654805-A (GB)
Title: Improvements in high frequency transformers for e.h.t. power packs
IPC: H01F19/00
Filed: 1948-11-19
Abstract: 654,805. Transformers; converting. WORONCOW, A., and BUCKINGHAM, J. Nov. 19, 1948, No. 30076. [Classes 38 (ii) and 38 (iv)] [Also in Group XL (c)] A high-frequency transformer comprises a secondary and a primary winding and an auxiliary winding in two halves, one on each side of the primary winding, with the two halves connected in opposite sense and so arranged that the auxiliary winding has inductive coupling with the secondary winding but practically none with the primary winding. The former is built up of various diameter insulating discs 10, 11, 16 on an insulated bolt 12 to provide the winding spaces 13, A, B, C. The bolt may also serve to mount the completed transformer on a chassis or the like. The primary winding, preferably of stranded wire, is wound in the space C and the halves of the auxiliary winding, oppositely connected, in the spaces A, B. The secondary winding occupies the spaces 13, the winding being taken from one space to the next by means of skewed slots in the larger discs 10. For greater operational efficiency an iron dust magnetic core 18 divided into sections by the insulating pieces 19 to prevent high electric stresses inside the former may be employed. This type of transformer may be used in an E.H.T. supply arrangement incorporating a feed-back oscillator valve. The primary winding is connected in the valve anode circuit, the oscillations which are consequently produced in the secondary winding being rectified to provide the E.H.T. voltage. The auxiliary winding is placed in the grid circuit and, since the oscillator frequency depends upon the circuit constants of the transformer, oscillations are generated at one frequency only due to the auxiliary winding being virtually uncoupled to the primary winding. By suitable circuit connections either a positive or a negative E.H.T. may be provided which is inherently stable.
Patent GB-284427-A (GB)
Title: Friction brake
IPC: F16D69/04
Filed: 1926-11-27
Abstract: 284,427. Thompson, J. S. Nov. 27, 1926. Blocks and shoes; blocks acting on drums. - In brakes in which a friction block is adapted to engage the member to be braked with a restricted contact surface a composition brake block is provided with a metal back 20, Fig. 8, which is engaged by themeans securing the block to the brake head. The metal back may have upturned sides and ends and is secured to the head by keepers 26 which are seated in recesses in the head and secured by bolts 29 and project into recesses in the ends of the block. The end walls of the metal back are bent down to form a bearing for the keepers. A double keeper may be used to secure the adjacent ends of two blocks on a keeper. The block may engage only at its end portions with shoulders 24 on the head so that the head 24 may be made narrower than the block between the shoulders and a ventilating space is provided. The composition material of which the block is formed is forced into perforations in the metal back. The metal back may have down-turned sides which embrace the head and are secured thereto by screws passing throughslots in the sides, or the ends of the metal back may be extended beyond the block and secured by rivets to the head. In Fig. 12 the downturned sides 38 of the metal backs of adjacent blocks are provided with' an opening engaged by projections 40 on the head over which issecured a keeper 41 by a screw 43, or the projections may be arranged on the keeper engaging openings in the down-turned sides of the metal backs. In both cases a projection 45 engages a. recess in the keeper.
Patent GB-1046790-A (GB)
Title: Production of aminated benzenes from hydroxybenzenes
IPC: C07C209/18
Filed: 1963-07-30
Abstract: Aminated benzenes are produced by contacting a hydroxybenzene with an aminating agent in the presence of a catalyst selected from silicaalumina, zirconia - alumina, titania - alumina, phosphoric acid and tungsten oxide, at a temperature between 300 DEG  and 600 DEG  C. and under superatmospheric pressure.  Hydroxybenzenes are defined as phenol and substituted derivatives, where one or more of the ring hydrogens is replaced by an aliphatic or aromatic group or both.  The aminating agent is preferably ammonia but ammonium chloride, ammonium carbonate, and hydrocarbon substituted primary and secondary amines, such as methylamine, and N-methylaniline, may also be used. Thus aniline may be produced by contacting a mixture of phenol and ammonia containing 1/2 to 40 mols. of ammonia per mol. of phenol with a silica-alumina catalyst at a temperature of from 350 DEG  to 500 DEG C. and a pressure of at least 7 atmospheres. Regeneration of the catalyst with an oxygen-containing stream is facilitated by the incorporation of cerium and metals of Groups Vb, VIb and VIIb, such as vanadium and tungsten, or their salts and oxides into or upon the catalyst.
Patent GB-341022-A (GB)
Title: Improvements in mechanisms for obtaining variations of speed
IPC: F16H61/02
Filed: 1929-10-04
Abstract: 341,022. Controlling variable speed gearing. TRIOU, A., 174, Rue de Paris, Montgeron, Seine-et-Oise, France. Oct. 4, 1929, No. 30149. Convention date, Oct. 5, 1928. [Class 80 (ii).] In controlling means for obtaining variations of speed in continuously running machines, such as spinning-machines or knitting-machines, according to the phase of operation, such as the progress of the winding of the cop, two cams are employed both mounted on a shaft actuated by movements on which the changes depend, one cam being fast on the shaft and adapted to operate the changespeed means so as to vary the speed cyclically between limits, and the other cam being loose on the shaft and driven by the fast cam and adapted to vary the origin of the difference in speed. As applied to a spinning-machine, a cam a is keyed to the shaft b, which operates the spindle carriage so as to effect the oscillation and lift, and the contour is such that a cable e secured thereto and to a pulley d on the axle of the driving-member of the change-speed gear is operated to produce a cyclic variation ; a cam k is loose on the shaft b and is rotated from the cam a by ratchet gearing and operates the cable e by means of a pulley g and lever h so that the origin of the cyclic variation is varied. the whole variation throughout the building of the cop being as shown in Fig. 4. The cam k is returned to its initial position when the machine is reset by means of a nose a<1> on the cam a.
Patent GB-1524075-A (GB)
Title: Hinges
IPC: E05D11/10
Filed: 1976-09-13
Abstract: 1524075 Vehicle door hinges WILMOTBREEDEN Ltd 13 Sept 1976 [18 July 1975] 30184/75 Heading E2F In a vehicle door hinge of the type in which two channel section members fit one 6 within the other 2 and have side walls 4, 9, 10, joined by a pivot pin 5, the inner member 6 has a reinforcing web 11 joining its side walls 9, 10 and has a base formed in two interlocking portions 7a, 7b. Fasteners 3, 8 extend through base of each member for attachment. Fig. 3 shows a blank from which the inner member 6 can be formed by bending side walls 9, 10 at right angles to base 11 then bending the base portions 7a, b into a single plane. A torsion bar spring can be mounted on the inner member to bias a roller into engagement with a profiled edge of a side wall of the outer member to define holdopen positions (Figs. 4, 5 not shown).
Patent GB-1090324-A (GB)
Title: Improvements in or relating to processes for producing porous plastic films
Inventor: JACK BRUCE JAMES
IPC: B26F1/24
Filed: 1965-07-15
Abstract: 1,090,324. Perforating plastics sheet material. A.L.C. Ltd. July 15, 1965, No. 30192/65. Heading B5A. Thermoplastic sheet material is perforated by passing it between a back-up roll kept at a temperature below the softening point of said sheet and a perforating roll kept at a temperature above the decomposing temperature of said sheet. The removal of any material adhering to the perforating projections is thus facilitated, as is an instantaneous softening and penetration of the sheet.
Patent GB-824511-A (GB)
Title: Conduit, method of and apparatus for making same
IPC: B29C45/14
Filed: 1957-09-26
Abstract: 824,511. Flexible conduits. BENDIX AVIATION CORPORATION. Sept. 26, 1957 [Nov. 2, 1956], No. 30249/57. Class 87(2). [Also in Group XXVIII] The porous walls of a conduit are lined and impregnated with a fluid compound by subjecting the external surface of the conduit to such compound under pressure. As shown in Fig. 1, the conduit 10 comprises three superposed telescoped tubes of braided wire 14, 16, 18 with a fourth innermost tube 12 of helically wound wire, the end portions of the tubes having flanged terminal fittings 11, 11<SP>1</SP>. The mould used, Fig. 5, has two confronting semicylindrical cavities in mould halves 25, 26 and when assembled with the conduit 10 therein, has the compound, e.g. silicone rubber or polyvinyl chloride, injected through the throat 38 to the longitudinally disposed distributing channel 37 and then through the vertical passages 39. A mandrel 60 having a circular cylindrical portion 61 and a frustoconical portion 62 mounted within the conduit 10 projects through block 47 and is provided with a knob 66 whereby it may be rotated to free it from the lining after the conduit has been impregnated.