baber/WOPTO huggingface dataset:
Patent GB-1128493-A (GB)
Title: Control and characterization of catalytic cracking processes
IPC: G01R33/44
Filed: 1967-01-13
Abstract: 1,128,493. Catalytic processing of hydrocarbons. MOBIL OIL CORP. 13 Jan., 1967 [14 Jan., 1966], No. 1890/67. Heading C5E. A method of controlling the catalytic processing of a hydrocarbon-containing feedstock comprises subjecting a sample to a U.V. spectrometric analysis by passing light therethrough of a wavelength which characterizes the sample, generating a signal representative of the amount of light transmitted from or absorbed by the sample and applying said signal to control the processing. The process may be the catalytic cracking or a petroleum feedstock and the wavelength of light used is indicative of the catalytic coking tendency of the sample and is in the range 2800-3200 A. The signal may be related to the heat balance by controlling the feed rate of the coke-forming stock, combustion air rate to a catalyst regenerator, cooling air rate to said regenerator, and/or lift air rate to transport catalyst from said regenerator. The feedstock may also be subjected to NMR analysis to characterize the H-C groupings therein.
Patent GB-450605-A (GB)
Title: Improvements in and relating to glass grinding apparatus
IPC: B24B7/24
Filed: 1935-01-21
Abstract: 450,605. Grinding glass. PILKINGTON BROS., Ltd., 703, Tower Building, Water Street, Liverpool, and GRIFFIN, J. H., Stoneycroft, Moss Bank, St. Helens, Lancashire. Jan. 1, 1935, No. 1956. [Class 60] In a glass-grinding machine wherein the glass strip 1 is operated upon by the blocks 3 of an upper grinding-tool and by the blocks 2 of a lower tool, abrasive, for example, sand and water, is fed to the tool operating on the undersurface of the glass by a device adapted to maintain the level of the abrasive at substantially that of the operative face of the tool. The blocks 2 are carried by a disc 4 on a hollow shaft 5 driven by gearing 10, 11 and rotatably mounted in a tubular casing 7 adjustable vertically by a screw 14, and the abrasive is fed to the bore of the shaft 5 through a stuffing box 18 by a pipe 19 communicating with a container 20. The container is carried by a bracket 22 attached to the casing 7 and so partakes of the vertical movements of the tool, and the level is maintained constant in the container by means of an overflow opening 24 and abrasive supplied by a pipe 23; alternatively, a float in the container may operate a valve in the pipe 23. The pipe 19 may be flexible and the container fixed. The level of the abrasive is fixed according to the type of tool employed, and may be raised to overcome absorption of head by restriction of the central outflow space 16 of the tool. Specification 267,654, [Class 60], is referred to.
Patent GB-320298-A (GB)
Title: Improvements in bandages of cotton or other material
IPC: A61F13/00
Filed: 1929-01-21
Abstract: 320,298. Turner, J., and Bias Bindings Co., Ltd. Jan. 21, 1929. Bandages are made by spirally cutting a woven cylinder of sterilized cotton or like cloth to obtain a broad sheet with the yarns running diagonally across, and then cutting this sheet longitudinally into strips of the required width.
Patent GB-1482670-A (GB)
Title: Process for producing homopolymers and copolymers of propylene
IPC: C08F2/00
Filed: 1975-01-16
Abstract: 1482670 Production of propylene polymers SUMITOMO CHEMICAL CO Ltd 16 Jan 1975 [16 Jan 1974] 2000/75 Heading C3P A process for producing polypropylene or a copolymer of propylene with another unsaturated hydrocarbon monomer which is free of solvent-soluble polymer, and catalyst residues, by polymerization in liquid propylene in the presence of a catalyst system comprising (a) an activated titanium compound obtained by reducing TiCl 4  with an organo aluminium compound and activating the resulting compound, and (b) an organo-aluminium compound, is characterized in that the resulting polymer slurry is contacted counter-currently with liquid propylene, in order to remove solvent-soluble polymer and catalyst residue dissolved therein. The process is preferably carried out in a tower provided with baffle plates, which may be rotated, and an agitator. The pressure during the counter-current contact is preferably 1-2 kg./cm.<SP>2</SP> lower than the pressure at which polymerization occurred, the latter being preferably 10-50 kg./cm.<SP>2</SP>.
Patent GB-1416232-A (GB)
Title: Azafluorene derivatives and organic sensitive materials containing same
IPC: C07D221/16
Filed: 1973-01-15
Abstract: 1416232 Azafluorene derivatives; pyridine and dihydro pyridine derivatives RICOH KK 15 Jan 1973 [24 Jan 1972] 2007/73 Heading C2C [Also in Division G2] Novel mononitro - 2 - azafluoren - 9 - ylidenemalonitriles are obtained by reacting mononitro - 2 - azafluoren - 9 - ones with malononitrile. Charge-transfer complexes of the compounds may be incorporated in organic sensitive materials for use in electrophotography (see Division G2). Mononitro-2-azafluoren-9-ones may be obtained by nitrating 2-azafluoren-9-one. 2-Azaflouren-9-one may be obtained by ring closure of 3-(2<SP>1</SP>,4<SP>1</SP>,6<SP>1</SP>-trimethylbenzoyl)-4-phenyl pyridine. The latter compound may be obtained by oxidizing 3-(2<SP>1</SP>,4<SP>1</SP>,6-trimethylbenzoyl)-4- phenyl-1,4-dihydropyridine, which may be produced by reacting 3-(2<SP>1</SP>,4<SP>1</SP>,6<SP>1</SP>-trimethylbenzoyl)pyridine with a phenyl magnesium halide. 3-(2<SP>1</SP>,4<SP>1</SP>,6<SP>1</SP>-Trimethylbenzoyl)pyridine may be prepared by reacting a nicotinoyl halide hydrohalide with mesityline.
Patent GB-1337502-A (GB)
Title: Cleaning compositions
IPC: C11D1/52
Filed: 1971-01-15
Abstract: 1337502 Fatty acid alkanolamide addition compounds J MARTINEAU and F J BIECHLER 15 Jan 1971 [17 March 1970] 2068/71 Heading C2C [Also in Division C5] Fatty acid alkanolamide addition products of formula wherein RCO is the acyl group of copra acid, stearic acid or oleic acid, are prepared by reacting 2 moles of diethanolamine with 1 mole of copra acid, stearic acid or oleic acid. The addition products are surfactants (see Division C5).
Patent GB-371051-A (GB)
Title: Improvements in the production of butyraldehyde
IPC: C07C45/62
Filed: 1931-01-21
Abstract: Butyraldehyde is obtained by treating crotonaldehyde in the liquid phase with hydrogen preferably in counter-current under ordinary or increased pressure and in the presence of a catalyst comprising nickel and chromium or their compounds.  A suitable catalyst is obtained by the co-precipitation of nickel and chromium hydroxides on asbestos fibre from an aqueous solution of nickel nitrate and chromium sulphate by means of sodium hydroxide and subsequently drying and reducing with hydrogen.
Patent GB-960795-A (GB)
Title: Manual control knob mounting assembly
IPC: B60K37/06
Filed: 1963-01-17
Abstract: 960,795. Motor vehicle controls. GENERAL MOTORS CORPORATION. Jan. 17, 1963 [Jan. 22, 1962], No. 2074/63. Heading B7H. [Also in Division H2] To prevent injury from the control knobs on the instrument panel should the occupants of a motor vehicle be thrown forward due to its sudden retardation, the control knobs are each carried upon a shaft supported movably in a housing so that upon an impact force, the knob is moved into the housing. As shown in Fig. 1, the control knob 10 is carried upon a shaft 12 and the housing 14 comprises a guide assembly 24 and a bezel 18 having a disc portion 31 supporting the shaft 12 and a portion 30 of a weakened crosssection which breaks upon the knob 10 receiving an impact, the knob entering the housing 14. The shaft 12 has a portion 28 of weakened section, or an insert of flexible material, which yields if the knob receives a lateral force. As shown in Fig. 3, an electric switch mechanism is contained within a plunger 34 slidable within a barrel 32 integral with the instrument panel 26 and held in place by a resilient ring 50 extending round a grooved forward section 46. A plastic disc 40 is located within a groove 44 in the barrel 32 and supports a pair of spring contacts 38 and terminals 42, the contacts 38 being engaged by a pair of switch terminals 36, the switch being actuated by a knob 10 supported upon a shaft 58. Upon impact, the disc 40 is wrenched from the groove 44 and the switch slides within the housing, Fig. 4. In a modification, the housing may be made of a resilient material and the disc 40 may be of rigid material. The edge of the disc 40 is inclined to facilitate its return into the groove. The terminals 36 and contacts 38 may be formed as a pair of integral units. In another modification, shown in Fig. 6 in the position after impact, the barrel 14 has a closed end 52 in which are formed apertures 54 in which the spring contacts 38 are normally located between beads 56 on one side of the aperture and a pair of conductors on the other, thereby holding the switch in place until it is disturbed by impact into the position shown.
Patent GB-1114768-A (GB)
Title: Improvements in and relating to semiconductor lamps
Inventor: WRIGHT HUBERT CHARLES
IPC: H01L27/15
Filed: 1965-01-18
Abstract: <PICT:1114768/C4-C5/1> A radiation-emitting device comprises a first region of semi-conductor material of one conductivity type forming rectifying junctions with two other regions of semi-conductor material of the opposite conductivity type, the radiation emitted when one junction is forward biased differing in wavelength from that emitted when the other junction is forward biased.  As shown, Fig. 1, a wafer 3 of P-type gallium phosphide, grown in an oxygen atmosphere and heavily doped with zinc, has an N-type epitaxial layer 1 of gallium phosphide heavily doped with tin grown on its surface. Unwanted parts of the epitaxial deposit are removed and a gold-zinc alloy is alloyed to layer 1 to form P-type region 2 to which is secured a contact tab 4 coated with gold-zinc alloy. Wafer 3 and a contact tab 5 are coated with aluminium-zinc alloy and secured together.  The device emits red light when junction 1-3 is forward biased and green light when junction 1-2 is forward biased.  Both junctions are soft so that they conduct in the reverse direction. The semi-conductor material may also be gallium arsenide.  A matrix of such devices may be mounted on a common connecting plate to form a two-colour television display. The two junctions may also be heterojunctions produced by epitaxially depositing a P-type layer 2 of gallium arseno-phosphide doped with zinc on an N-type substrate 1 of gallium arsenide doped with tin (see Division H1).  Wavelengths of 8000 <\>rA and 10,500 <\>rA are referred to.  A circuit arrangement is described, Fig. 2 (not shown), by means of which a direct potential of either polarity or an alternating potential may be selectively applied to the electrodes of the device to cause emission of radiation of one or other of the wavelengths or of both wavelengths alternately.
Patent GB-1514057-A (GB)
Title: Drilling of subterranean formations with drilling fluids containing fluid loss agents
IPC: C09K8/24
Filed: 1976-01-20
Abstract: 1514057 Drilling fluids HERCULES INC 20 Jan 1976 02184/76 Heading E1F In a drilling fluid, a fluid loss control agent comprises a product of radiation polymerization of acrylamide, methacrylamide, acrylic acid, methacrylic acid, alkali metal acrylate, alkali metal methacrylate, or mixtures thereof in concentrations of from 10 to 60% by wt. dissolved monomer in an aqueous medium, the radiation intensity being from 250 to 1,000,000 rads/hr, and the radiation dose being from 500 to 300,000 rads. Preferably the aqueous monomer solution contains from 25 to 99% by weight of acrylamide or methacrylamide and from 1 to 75% by weight of acrylic acid, alkali metal acrylate or alkali metal methacrylate; contains no more than 5 ppm of nickel, iron or cobalt ions and no more than 0.5 ppm of cuprous or cupric ions; and has a pH of from 3 to 13. The growth of active polymer chains may be restricted by chain transfer agents, e.g. lower alkyl alcohols, halogenated compounds, thiosorbitols containing two thio groups and four secondary hydroxyl groups, and mercaptans; and partial cross-linking or branching of the polymer may be effected by using ethylenically unsaturated water-soluble copolymerizable monomers containing more than one ethylenically unsaturated bond. The radiation may be gamma rays, X-rays or accelerated electrons, protons or neutrons. Preferably the drilling fluid contains from 0.01 to 10% by weight of the fluid loss control agent; bentonitic clay; supplemental water loss control agents; conditioning agents, e.g. nigrosine, linae, starches, lignin derivatives and alkali metal polyphosphates; wall building agents, e.g. quebracho, nigrosine, and impectate pulp; and weighting agents, e.g. iron oxides and barytes. The drilling fluid may be water-in-oil emulsions and microemulsions, oil-in-water emulsions and microemulsions, water base drilling fluids, fluids containing both water and hydrocarbon, or fluids containing little or no hydrocarbon.
Patent GB-138978-A (GB)
Title: Improvements in or relating to the lubrication of the vertical crank pins of plansifters
IPC: F01M1/06
Filed: 1919-01-30
Abstract: 138,978. Walthew, J. G., and Simon, Ltd., H. Jan. 30, 1919. Sieves with compound or variable motion.-A device for supplying an intermittent feed of oil to the vertical crank-pin of a plansifter is provided with means for closing the feed channel when oil is not being supplied, to prevent draining back of the oil. A balance weight fixed to the crank pin d contains a reservoir h, in which the oil is thrown outwards centrifugally. The oil is collected by the open end of a scoop a and is delivered through passages f, g, k to the bearing c of the crank-pin. The scoop is formed on a sleeve b<1> closely fitting the crank-pin so that the passage f is cut off from the scoop a except when oil is entering the scoop. From the upper end of the bearing, oil escapes through radial holes r' and flows over the outer spherical surface, which is formed with axial passages s. In a modification the scoop communicates with a groove on the crank-pin d supplying an annular chamber in the bearing.
Patent GB-567366-A (GB)
Title: Improvements in mechanism for feeding articles to machines
IPC: B65B57/04
Filed: 1943-02-12
Abstract: 567,366. Feeding containers to machines. ROSE, A. G., KAY, J. A., and ROSE BROS. (GAINSBOROUGH), Ltd. Feb. 12, 1943, No. 2327. [Class 94 (i)] [Also in Groups II and XXX] Mechanism for feeding containers 11 of fibreboard or similar material to a machine, such as the closing and sealing machine described in Specification 541,385, comprises a feed platform, e.g. an endless belt 12, means, e.g. a leaf spring 23, for guiding the containers towards one side of the platform where they successively engage a fixed stop 24, disengaging means, e.g. a pusher 38, operating in timed relation with the machine to move the leading container transversely of the platform from engagement with the stop 24 and into engagement with a movable feeler 36 adapted to move a second stop 26 out of the path of the container, and means, e.g. a flange 47, on the pusher 38 for separating the leading container from the following container to allow the stop 26 to be returned to its operative position. The belt 12 which is supported on freely mounted rollers 13 and driven by a shaft 14 through chain-and-sprocket gearing 17, deposits the containers on a support comprising two sets of inclined rollers 18 arranged in the track of a conveyer consisting of parallel chains 19 connected by transverse pusher bars 21, the timing of the pusher 38 being such that, as each container is deposited on the support, a pusher bar 21, moves up to carry it through the machine. The stop 26, pivoted at 27 on a bracket 28, has a short arm 29 with a forked end engaging a pin 31 depending from one arm 32 of a two-armed member 32, 33 pivoted at 34 on the bracket 28. The end of the arm 33 constitutes the feeler 36 which is urged into the path of the containers by a spring 37, movement of the feeler causing a greater movement of the stop 26 because of the shortness of the arm 29. The pusher 38 is mounted on a shaft 39 and is reciprocated by means of a pin 44 on the shaft engaging the forked end of one arm 42 of a two-armed lever 41, 42, the arm 41 carrying a cam roller 43 maintained by a spring 46 in engagement with a cam 40 on the shaft 14.
Patent GB-437348-A (GB)
Title: Method of splitting a racemic body into its optically active components
Filed: 1934-01-23
Abstract: According to this Specification, which does not admit of satisfactory abridgment, racemic compounds, such as racemic adrenaline, morphine or cocaine, are separated into their optically-active components by forming a solution of a salt of the compound, giving this solution a certain rotary power and bringing the pH of the solution to a value just necessary to cause a portion of the compound to precipitate. The precipitated portion contains a high proportion of the optically active component corresponding to the direction of the initial rotation given to the solution.  The rotary power may be imparted to the solution by adding one of the optically active components of the racemic compound being treated or by the application of a strong electric or magnetic field.  Sodium sulphite, soda, potash, pyridine or another heterocyclic base may be used for adjusting the pH.  That portion of the compound remaining in the mother liquors may be submitted to the same treatment, thus obtaining alternately portions rich in the dextrorotatory component and portions rich in the laevo-rotatory component.
Patent GB-1218802-A (GB)
Title: Treatment of woven cotton fabric and a process for the manufacture thereof
IPC: D06M15/263
Filed: 1968-01-16
Abstract: 1,218,802. Textile-treating composition. WABASSO Ltd. 16 Jan., 1968 [27 Oct., 1967], No. 2356/68. Heading C3R. [Also in Division D1] An aqueous composition used in the treatment of cotton sheeting comprises dimethylol glyoxal urea resin monomer, ammonium chloride, a terpolymer of acrylic acid, butyl acrylate and N-methylol acrylic acid methylamide, oxalic acid, a sulphonated alkyl-aryl polyglycol ether and a stilbene derivative optical brightener.
Patent GB-1481781-A (GB)
Title: Printer ribbon substrates
IPC: B41J31/00
Filed: 1976-01-22
Abstract: 1481781 Ink ribbon E I DU PONT DE NEMOURS & CO 22 Jan 1976 [23 Jan 1975] 2493/76 Heading D2B [Also in Division B5] A composite film based ink carrying ribbon comprises an asymmetrically biaxially orientated, heat set polymeric linear terephthalate ester base film one surface of which has laminated thereto a nylon film ribbon backing the nylon film having a nylon surface to steel static coefficient of friction of 0.4 or less as measured using a capstan friction tester and the other surface coated with an ink.
Patent GB-808480-A (GB)
Title: Improvements in or relating to fuze-setting apparatus
IPC: F42C17/00
Filed: 1945-01-31
Abstract: 808,480. Fuze-setting apparatus. HARVEY. V. P., MASON, J. A., and MOLINS MACHINE CO. Ltd. Feb. 28, 1946 [Jan. 31, 1945], No. 2494/45. Class 9 (1) Predictor controlled fuze-setting apparatus incorporating a magslip transmitter at the predictor and a magslip resetter and hunter at the gun, comprises variable ratio gearing between an adjustable control member and the magslip resetter so that the fuze setting given to the shell may differ from that determined by the predictor, in order to allow for wear of the gun barrel &c. The adjustable control member comprises a stop on a worm wheel 35 which determines the length of time of engagement of a clutch in the gear train, driven by the movement of the loading tray and which turns the fuze setting head to set the fuze. When the clutch disengages the worm wheel, by means of the adjustable control member may drive this gear train and the fuze setting head and minor alterations of the setting value are made. The worm wheel 35 is driven by an oil motor 54 controlled by the magslip hunter. The adjusting movement of the adjustable control member only ceases when the magslip setter and magslip transmitter have been brought into step and as the re-setter is driven by the worm wheel 35 the time of this occuring is varied by the variable ratio gearing. This gearing comprises a cam 150 fixed to the worm wheel 35 which drives a rack 154 connected by gearing 160, 153, 152 to the re-setter 151. The cam 150 has a sloping cross-section and the rack is adjustable laterally across this slope to give the variable gear ration, by a manually operated screw which moves the mounting 155 of the rack. Alternatively the cam may be moved according to the Provisional Specification. A ball and disc drive may replace the cam and associated parts or a set of close ratio gears may be employed Specification 808,479 is referred to.
Patent GB-310765-A (GB)
Title: An improved method of and apparatus for treating and drying fish
IPC: A23B4/03
Filed: 1928-01-26
Abstract: 310,765. Haslam, W. H. Jan. 26, 1928. Air and gases, controlling temperature and velocity of.-Fish, marine flora, grass, beets or other organic materials are dried in a current of hot air circulated over or through the mass at a temperature above that at which decomposition would occur in still air, the temperature rising periodically and the velocity of the air being 1,000 feet per minute at 80‹ F. and an additional 1,000 feet per minute for every rise of 10‹ F. so that chemical charge is prevented, and a dry, uncooked, sterilized product results. An uninterrupted circulation of hot air is maintained and the air supply is changed by constant addition of fresh air and withdrawal of moist air. The temperature may vary from 70‹ F. to approximately 170‹ F. when the air speed is approximately 120 miles per hour. The treatment continues about 12 hours. The fish is placed on trays in wagons run into insulated chambers with elements heated by steam or hot water. Fans circulate the air through fish which may be crushed before treatment and powdered when dry. Apparatus described in Specification 303,591 may be used.
Patent GB-1492483-A (GB)
Title: Process and apparatus for the manufacture of a gas mixture containing acetylene ethylene methane and hydrogen by thermal cracking of liquid hydrocarbons
IPC: C10G15/12
Filed: 1975-01-21
Abstract: 1492483 Electric discharge treatment BASF AG 21 Jan 1975 [22 Jan 1974] 2549/75 Heading H5H [Also in Division C5] Apparatus for producing a plurality of arcs each of output not more than 1À2 kW under the surface of a liquid hydrocarbon comprises two electrodecarrying plates made of plastics material 6, 7 and fixed parallel to the longitudinal axis of the reaction vessel 2 and further plate 8 made of plastics material and movable between the two fixed plates such that it can assume a position where the rod electrodes 3 mounted thereon at right angles to the surface of the plate short-circuit, the electrodes 3 which project from the fixed plates.
Patent GB-485778-A (GB)
Title: A grass and like mowing or cutting attachment for use on tractors
IPC: A01D34/03
Filed: 1937-01-29
Abstract: 485,778. Mowing - machines. COLES, C. C. Jan. 29, 1937, No. 2628. [Class 6 (iii)] A power driven mowing-machine comprises a tractor member having a transmission shaft 2 extending rearwardly and carrying a gear wheel 13 to which it is adapted to be clutched by an operating handle 16 acting through a spring member to provide a yielding connection. The wheel 13 meshes with a spur wheel 12 on a shaft extending forwardly and downwardly directly below the shaft 2 and enclosed in a casing 1 supported by brackets 4 from the machine frame. The front end of the casing 1 has pivotally connected thereto the shoe 5 of the knife bar of the machine, this shoe also being connected by a pull rod 7 with the front axle of the machine and bv a brace to the rear frame. The forward end of the forwardly and downwardly inclined shaft carries the usual crank disc 8. The knife bar is raised by a chain 22 connected to a rack bar 19 engaged by a pinion on a shaft actuated by a handle 21. Specification 485,779, [Group XXXI], is referred to.