baber/WOPTO huggingface dataset:
Patent GB-942570-A (GB)
Title: Process for the continuous production of acrylonitrile
Filed: 1960-10-14
Abstract: The invention comprises a process for the continuous production of acrylonitrile by reacting acetylene with hydrogen cyanide in the presence of an acidified cuprous chloride catalyst solution which, charged with hydrogen cyanide, is reacted in countercurrent to the acetylene in a packed reaction vessel and is then recycled. the hydrogen cyanide being introduced into the acetylene at more than two points along the reaction path. Elevated pressure may be used, e.g. 2-6 ats. abs. Specification 903,347 is referred to.
Patent GB-170782-A (GB)
Title: Fire arches for furnaces
IPC: F23M5/06
Filed: 1920-12-16
Abstract: 170,782. Liptak, M. Dec. 16, 1920. Blocks, special shapes of.-A furnace arch is built up of blocks 26, Figs. 1 and 6, detachably supported by hanger bars 27 engaging with recesses 26<b> in the heads 26<a> of the blocks and resting on the lower flanges of supplementary beams 25 which are supported by hangers 21 on main beams 20. The hangers 21 are adapted to slide on the lower flanges of the beams 20 and are provided with recesses having inwardly projecting bosses engaging with upper short flanges on the beams 25 which may be inclined or horizontal and may be in one or more sections. Detachable extensions 28, Fig. 8, at the ends of the beams 25 support crown blocks 30 having corrugated sides and recesses engaging with the beam extension 28. An apron wall 32 rests upon the inner beam 20 and upon a plate 31 supported by the extensions 28. The blocks are arranged in the arch so that they may break jcint longitudinally, but with the modified form of block shown in Fig. 9, in which the heads 26<c> are centrally disposed the longitudinal joints are in alignment. Fig. 11 shows a modified form of block provided with recesses 26<f> adapted to engage with hangers 27<a> of the form shown in Fig. 13. The recesses 26f may be arranged centrally, in which case the longitudinal joints of the bricks will be in alignment instead of staggered, as shown in Fig. 11. Fig. 15 shows a modified form of block having all its upper corners intact and with an inverted T-shape recess and clearance notch 26<g> for the hanger.
Patent GB-507401-A (GB)
Title: An improved wall tie
IPC: E04B1/41
Filed: 1938-12-06
Abstract: 507,401. Wallties. CORDES (DOS WORKS), Ltd., SHARPE & FISHER (1924), Ltd., LEWIS, A. C., and FOWLES, G. A. Dec. 6, 1938, No. 35512. [Class 20 (iv)] A tie for use in connecting together the spaced inner and outer leaves of a wall is covered or faced throughout one or more parts of its length with rubber or fibrous material ; alternatively, such material may be embodied in the tie. Each of the forked ends a of the tie shown in the drawing is encased in a preformed covering b of rubber or of a fibrous material such as wool or felt. The tie may, alternatively, be in two parts which are bolted together with their inner parts overlapping each other and faced with rubber. The tie may also comprise a metal barrel through which passes a rod covered, as regards the portion disposed within the barrel, with rubber ; the end portions of the rod are forked.
Patent GB-1200880-A (GB)
Title: Method of and apparatus for the removal of exhaust gases from electrolytic furnaces
IPC: C25C3/22
Filed: 1969-07-15
Abstract: 1,200,880. Removing fumes generated in industrial processes. SWISS ALUMINIUM Ltd. 15 July, 1969 [30 July, 1968], No. 35629/69. Heading F4X. In a furnace house an electrolytic furnace having a rectangular shaped cathode pot 4 is provided on all sides with an air curtain 9 suitably inclined upwardly towards a gas offtake 13 to entrain the exhaust gases leaving the furnace thus preventing them from escaping into the atmosphere inside the furnace house. A circumferential duct 6 formed inside the wall 5 of the pot 4 has an outlet opening 7 between inclined walls 8 for the air under pressure. The pressure air is fed to the duct 6 through pipes 11 from a central distributing pipe (10, Fig. 4, not shown). The gas offtake 13 at each end of the furnace is connected via downcomers (21, Fig. 2) into a ducting system 15 subjected to suction. Anodes 16 are carried by a supporting structure 12 which includes rods 18 and horizontal members 17. The members 17 are spanned by a cover 19 to form the gas offtake 13. Below the members 17 a plate 20 extending the whole length of the furnace is mounted by bolts 22 so as to leave slits 14 through which the gas-air mixture can pass into the offtake 13. From the ducting system 15 the gas-air mixture passes through a purifier and then into the atmosphere.
Patent GB-844479-A (GB)
Title: A process for the production of polyamides having modified terminal groups
IPC: C08G69/16
Filed: 1957-11-15
Abstract: Polyamides having modified terminal groups are made by heating a monomeric lactam having a water content of less than 0,35 mole per cent, in an anhydrous atmosphere and in the presence of an anhydrous amine or ammonium salt which does not split off water under the reaction conditions, at a temperature at which polyamide formation occurs, the heating being continued until the polyamide has become capable of being drawn out into filaments. Specified lactams are S -caprolactam, cyclo-octanone iso-oxime, suberone iso-oxime and the mixture of isomeric lactams which is formed when methyl cyclohexanone oxime is heated with sulphuric acid Specified salts are n-hexylamine hydrochloride, hexamethylene diamine dihydrochloride and ammonium chloride.  Specified gases for use during the polymerisation are nitrogen and petroleum, toluene or xylene vapours.  In the examples, polyamides are made by polymerising #x-caprolactam in the presence of:-(1) and (2) n-hexylamine hydrochloride, (3) hexamethylene diamine hydrochloride and (4) ammonium chloride.  Specification 535,421 is referred to.
Patent GB-347198-A (GB)
Title: Windshield wipers or the like
IPC: B60S1/38
Filed: 1929-11-21
Abstract: 347,198. Windscreen cleaners and squeeges. ANDERSON, J. W., 957, Garfield Street, Gary, Indiana, U.S.A. Nov. 21, 1929, No. 35691. Convention date, Feb. 2. [Classes 19 and 138 (i).] Windscreen wipers, squeegees, or the like are provided with a wiping element of the form shown in the Figure, having roughly a T-shape with the head portions stepped to function as indicated. A holder 2 embraces the shank of the T-shaped wiper and is flared at 11 to constrain the movement of the wiper. The steps are preferably undercut at 4<1> to increase the flexibility of the wiper.
Patent GB-448785-A (GB)
Title: Improvements in the preparation of cops of rayon for dyeing or analogous fluid treatment
IPC: D06B23/00
Filed: 1934-12-13
Abstract: 448,785. Preparing cops for dyeing or analogous fluid treatment. BRANDWOOD, J., 2, Westbourne Road, Birkdale, Southport, Lancashire. Dec. 13, 1934, No. 35755. [Class 120 (iii)] In the preparation for dyeing or analogous fluid treatment of cops of yarns which consist wholly or mainly of rayon fibre the cops are softened to render them more permeable to fluids by partially breaking down the wind, i.e. by loosening adjacent coils in the wound cop while retaining its shape so that the coils will run off evenly during ultimate unwinding. The softening and partial breaking down of the cop wind is effected by passing the cop between two surfaces which apply a slight pressure to effect a slight displacement of the wound coils in the direction of the cop length, e.g. by passing between rubber covered rollers 1, 2 which are geared together at 14, 15 and are relatively adjustable by hand wheels 13 working on screws 11. The lower roller is preferably hand driven. The rollers may be peripherally grooved at corresponding points to present a recess through which the cop may pass. In an example, a cop 7¥ inches long and 1 inch diameter was extended by slight displacement of its coils to a length of 8¢ inches.
Patent GB-886085-A (GB)
Title: Polymerization process and catalyst therefor
IPC: C08F4/64
Filed: 1959-10-22
Abstract: Ethylenically unsaturated hydrocarbons, e.g. ethylene, propylene, butene-1, pentene-1, hexene-1,4-methylpentene-1, butadiene, isoprene, styrene and methylstyrene are polymerized by means of a four-component catalyst comprising (1) a Group I-III metal or metal-organo compound, (2) a Group IVa metal halide or a compound in which at least one halogen atom in such halide has been replaced with an -OR group, R being a hydrocarbon group, (3) a Group Va metal halide, oxyhalide or organohalide and (4) a halide, organohalide, alkoxide, alkyl, aryl or mixed aryl/alkyl of Si, Ge, Sn or Pb.  In Example 24, ethylene/butene-1 copolymer is prepared using a Et3Al/TiCl4/VOCl3/SiCl4 catalyst.  Other examples describe the polymerization of ethylene using besides the latter specified catalyst, the following:-Et3Al/TiCl4/VOCl3 with n-amylSiCl3, SnCl4, SiEt4, GeCl4 or PbCl4; Et3Al/TiCl4/VCl4/SiCl4; (i-Bu)3Al/TiCl4/VOCl3/SiCl4; and Et3Al/TiCl4/VOCl3/SnCl4+SiCl4. Catalyst components otherwise specified are: (1) Na, Mg, Ca, BuNa, Pr3Al, (n-decyl)3Al, BuMgCl, Bu2Mg; (2) TiCl3, TiI4, ZrBr2, ZrBr4, HfI3, ThBr4, BuOTiCl3, EtO(BuO)TiCl2, (BuO)2ZrCl2 and (RtO)3ZrBr; (3) TaCl5 and CbBr5; and (4) Et silicate, GeBu4, GePh4, Bu2SnCl2, SnBu4, PbEt4, (amyl)2GePh2, MeEtSiH2 and Bu2Sn maleate.
Patent GB-1481490-A (GB)
Title: Motorised two-wheeled vehicles
IPC: B62M7/02
Filed: 1975-08-29
Abstract: 1481490 Motorcycle cooling arrangements HONDA GIKEN KOGYO KK 29 Aug 1975 [4 Sept 1974] 35826/75 Heading B7H A deflector plate assembly 4 is arranged between the engine and cooling system of a water cooled motor cycle. The assembly comprises vertical and horizontal plate portions 4a, 4b to the rear of a fan 3 which draws air through the radiator 2b. Warmed air passed rearwardly is deflected away from the engine and driver's legs by the plate assembly.
Patent GB-1353916-A (GB)
Title: Aluminum-zirconium aerosol antiperspirant composition and process
IPC: C01F7/56
Filed: 1971-07-30
Abstract: 1353916 Antiperspirants PROCTER & GAMBLE CO 30 July 1971 [30 July 1970] 35941/71 Heading A5B [Also in Divisions C1 and C4] Antiperspirant complexes are prepared by a process which comprises the steps of:-(A) heating an aqueous solution containing from 1 to 3.2 parts by weight of aluminium chlorohydroxide to a temperature of from 190‹F to 225‹F; (B) adding an aqueous solution contaming 1 part by weight of zirconyl hydroxy chloride to the aluminium chlorohydroxide solution at such a rate that the addition takes from 2 to 5 hours, while heating and agitating the total anhydrous solids content when all the zirconyl hydroxychloride has been added being at least 10% by weight and (C) heating and agitating the aluminium chlorohydroxidezirconyl hydroxychloride mixture at a temperature of from 190‹F to 225‹F for from ¢ hour to 5 hours until a stable complex forms. The complex may then be dried at 100 to 230‹C to a moisture level of from 1 to 15% by weight and then comminuted into the form of an impalpable powder. The powder antiperspirant complex is claimed per se.
Patent GB-1410333-A (GB)
Title: Convector heaters
IPC: F28D1/047
Filed: 1972-08-01
Abstract: 1410333 Tubular heat exchangers JOHN HENNING (ENG) Ltd 5 Dec 1972 [1 Aug 1972] 35970/72 Heading F4S A convector heater incorporates a finned sinuous heat exchange element made up of three U-shaped tubes 10 interconnected by return bands 11. The straight tube portions of the lowermost U-tube lie in a common horizontal plane whereas the straight tube portions of the other U-tubes lie in a common plane inclined upwardly and rearwardly towards the rear of the heater. Each fin 14 is vertically disposed and comprises a lower horizontally extending portion 15 and a skewed upper portion 16. The straight tube portions extend through flanged apertures 17, 18 in the respective fin portions 15, 16 which are supported in position by means of end brackets 22. The longitudinal axes of the parallel and horizontally extending straight tube portions lie in different vertical planes. Heating fluid, e.g. hot water enters the element through an inlet 13 and leaves through an outlet 12, fluid flow through the element being controlled by means of a valve 21.
Patent GB-861396-A (GB)
Title: Integral mixtures of photographic gelatine emulsions and polyvinyl alcohol
IPC: G03C1/053
Filed: 1958-11-10
Abstract: A composition containing polyvinyl alcohol and gelatine is obtained by dissolving polyvinyl alcohol in water at an elevated temperature and then cooling, soaking the gelatine in the solution until swollen, and then melting and stirring the resultant gel until a uniform product is obtained.  An example describes the production of a product containing 3 g. polyvinyl alcohol, 82 g. distilled water and 15 g. gelatine.ALSO:A composition containing polyvinyl alcohol and gelatine is obtained by dissolving polyvinyl alcohol in water at an elevated temperature and then cooling, soaking the gelatine in the solution until swollen and then melting and stirring the resultant gel until a uniform product is obtained.  An example describes the production of a composition containing 3 gr. polyvinyl alcohol, 82 gr. distilled water and 15 gr. gelatine.
Patent GB-1474024-A (GB)
Title: Throttle valve
IPC: F16K31/53
Filed: 1973-07-27
Abstract: 1474024 Gas turbine engine fuel systems LUCAS INDUSTRIES Ltd 5 July 1974 [27 July 1973] 36009/73 Heading F1G [Also in Divisions F2 and G3]  A throttle valve for a gas turbine fuel system comprises a body 10 having inlet and outlet ports 11, 12 and containing a valve-member 13 rotatable via a differential gear mechanism 16 by electric stepper motors 14, 15. Mechanism 16 comprises a bevel gear 17 on member 13 meshing with bevels 20 on a carrier 19 having teeth 21 meshing with pinion 22 driven by stepper motor 15, bevels 20 also meshing with a bevel 18 driven by stepper motor 14. The velocity ratio between bevels 18, 17 is - whereas that between carrier 19 and bevel 17 is 2. This difference is partially compensated for by reduction gear boxes 23, 24, so that a single step displacement of one motor will cause a slightly larger rotation of valve-member 13 than a single step of the other motor. Motors 14, 15 have independent control circuits 25, 26 connected to a digital computer 27 which receives a feedback signal from transducer 28 driven by member 13. For fine control the motors 14, 15 are actuated such that they tend to rotate member 13 in opposite directions, whereas for fast control they are actuated to rotate the member 13 in the same direction.
Patent GB-793654-A (GB)
Title: Improvements in or relating to terminal clips for detachable electrical connectors
IPC: H01R13/115
Filed: 1955-12-15
Abstract: 793,654. Two-part couplings. A.M.P., Inc. Dec. 15, 1955 [Dec. 16, 1954], No. 36027/55. Class 38 (1). A terminal clip 5 for co-operating with a contact blade 7 comprises a floor portion with a raised-central, contact-forming portion 17, which is bowed upwardly, and lateral spring members 11 which are bent round to overlie portion 17 with their end edges 15 directed towards said portion. The blade is retained in the clip by an indentation 19 in portion 17 which forms an inclined ramp engaging a recess 21 in the blade, insertion of the blade causing flattening of portion 17, thereby obtaining good face-to-face contact. Transverse slots 25 in portion 17 increase the resilience thereof.
Patent GB-1457429-A (GB)
Title: Vented bags
IPC: B65D33/01
Filed: 1973-07-30
Abstract: 1457429 Plastics bags BRITISH VISQUEEN Ltd 4 July 1974 [30 July 1973] 36136/73 Heading B8K A bag which may be of low-density polyethylene or P.V.C. has laterally displaced venting apertures in overlapping layers of the bag walls within the area enclosed by an inverted U-shaped seal 7 at least one of the inner surfaces within the area of overlap having an uneven surface which prevents the surfaces adhering together. The apertures may be pin holes or interruptions in the seal 7 and either or both the overlapping surfaces may be uneven. The unevenness can be in the form of ribs, projections, indentations or attached particles and may be formed by passing the bag material through crimping rolls. The venting arrangements may be in a patch attached to one of the walls and the bag may have a filling valve.
Patent GB-1269878-A (GB)
Title: Self-energizing clutches
IPC: F16D43/22
Filed: 1970-07-27
Abstract: 1,269,878. Ratchet clutches. BENDIX CORP. 27 July, 1970 [26 Aug., 1969], No. 36209/70. Heading F2C. In a one-way clutch for a turbine engine starting apparatus wherein a centrifugal governor 16 initiates light engagement between a presser plate 30 and a driven plate 24 and thereafter a screw thread 40 between the presser plate 30 and driving shaft 10 effects full clutch engagement, a lost motion connection 64 between a back plate 28 and an intermediate plate 60 fast with the driving shaft 10 facilitates disengagement on overrun by permitting the presser plate 30 to rotate relative to the driving shaft 10 and thus reduce clutch engaging pressure without slippage occurring between the driven plate 24, back plate 28 and presser plate 30. Belleville springs 38 limit the maximum clutch engaging pressure. Springs 32 separate the driven plate 24 from the back plate 28 during clutch disengagement. At a predetermined speed the centrifugal governor 16 rotates the presser plate 30 relative to the driving shaft 10 to initiate light engagement between the presser plate and driven plate.
Patent GB-730537-A (GB)
Title: Improvements in or relating to the lubrication of two-stroke, single-cylinder internal combustion engines
IPC: F01M9/06
Filed: 1953-12-30
Abstract: 730,537. Lubricating. TEAGLE, W. T. Dec. 30, 1953, No. 36233/53. Class 7(2). [Also in Group XXIV] In a single-cylinder two-stroke internal combustion engine of the kind in which lubrication is effected by mixing oil with the petrol or other fuel fed with air into the crankcase, the crank pin 1 is constructed to project beyond the big-end bearing 2 of the connecting rod 3 and is provided with a passage 5 adapted to scoop oil and fuel mixture into the bearing. The inner face of the cover plate 8 of the engine is preferably provided with an annular recess 9 in which the end of the crankpin travels to assist the passage of the oil or fuel mixture into the passage 5. Specification 714,619 is referred to.
Patent GB-1014829-A (GB)
Title: Arrangements for measuring electrical properties of semiconductors
IPC: G01R31/26
Filed: 1962-09-24
Abstract: 1,014,829. Measuring electrical properties of semi-conductors. TEPAS INSTRUMENTS Inc. Sept. 24,1962 [Oct. 2, 1961], No. 36236/62. Heading G1U. An apparatus for measuring electrical properties of a semi-conductor comprises an impedance bridge which responds to the impedance of the semi-conductor, which is connected thereto,an arrangement for balancing the bridge when the semi-conductor is at a first reference temperature, and an arrangement for heating the semi-conductor to a second higher temperature to rebalance the bridge, the bridge being unbalanced between the first and second temperatures. Measurement of this second temperature yields information concerning the resistivity or impurity concentration of the semi-conductor. The resistivity of semi-conductor materials rises to a maximum at a particular temperature and then falls again with increasing temperature, the maximum resistivity and the temperature of occurrence thereof depending on the particular semi-conductor and impurity concentration therein. The temperature range from a reference temperture where the semi-conductor has a measured resistivity to the higher temperature where it has the same resistivity is also specific to a particular semi-conductor impurity combination, and a measurement of this range is used in the determination of an unknown resistivity. The semi-conductor 48 (Fig. 5) is mounted in a temperature chamber 40 with a thermocouple 50 positioned therein. The output from the thermocouple is fed to a temperature indicating instrument 56. The semi-conductor is connected in one arm of an A. C. bridge 44, the output of which is fed to an oscilloscope 46. The arrangement is calibrated by using several wafers of P-types germanium with different impurity concentrations and of known resistivity at a reference temperature. These are used in the apparatus in turn, the temperature of the enclosure 40 being adjusted to the reference temperature as shown on the indicator 56. The A.C. bridge is then adjusted until a balance is shown on the oscilloscope 46. This may conveniently be done by arranging that the oscilloscope displays a trace which is horizontal at balance, but inclined when out of balance, the direction of the inclination indicating the phase of the imbalance. The temperature of the enclosure is then raised until the bridge returns to balance, the temperature at which this occurs being noted. A curve is plotted for the several calibrating wafers, showing the resistivity at the reference temperature against the elevated temperature at which the resistivity returns to the same value. The procedure outlined above is then applied to an unknown sample and the rebalance temperature noted. The corresponding resistivity can then be read from the curve. The resistivity cannot be directly determined from the balance components of the A.C. bridge, since several unknown fixed resistances, such as the resistance of the semi-conductor mount, are in series with the semi-conductor resistance.
Patent GB-1124343-A (GB)
Title: Resin-coated fibrous glass substrates and laminates made therefrom
IPC: C08J5/24
Filed: 1965-08-24
Abstract: A fibrous glass layer e.g. fibreglass sheets, woven fabrics, fibre mats is coated with a solution in say organic solvents of an uncured polytrimellitamide polymer having imide forming groups and being soluble in N, N-dimethylacetamide, said uncured polymer being convertible to an aromatic polytrimellitamide polymer having no uncoverted imide-forming groups and being insoluble in N, N-dimethylacetamide by curing, and then heated to form a tack-free coated glass layer under such conditions to prevent complete imidization of the imide-forming groups.  The polymers are described in Patent No. 1,056,564.  A plurality of the tack-free coated glass layers are then laminated under heat and pressure to bond the layers together and to obtain a final cure of the polymer.  The laminating may be carried out at 330-500 DEG F and 1000-2000 p.s.i., the resulting laminate having say 12, 25 or more layers.  The polymers may be prepared from p, p1-oxybis (aniline), and p, p1-methylenebis (aniline). In Example (2) laminates are prepared from a glass cloth coated with three applications of the polymer, and in Example (3) from a combination of 2-coat and 3-coat plys.  The products have a high heat distortion temperature and strength.
Patent GB-156116-A (GB)
Title: Process for the manufacture of diolefines and/or polymerisation products thereof
IPC: C07C2/04
Filed: 1920-12-30
Abstract: Diolefines are prepared by heating molecular proportions of an ethylene hydrocarbon and an acetylene hydrocarbon under pressure. The reaction may take place in the presence of a catalyst such as an oxychloride, molybdic acid, or an oxide or hydroxide of alkali or alkaline earth metals; inert gases or vapours may also be employed as diluents, e.g. nitrogen, carbon dioxide, benzene or other hydrocarbon.  According to examples:-1 : 3 - butadiene results from the treatment of a mixture of acetylene and ethylene; a diolefine of the formula C5H8 is obtained from allylene and ethylene; and a diolefine of the formula C5H8, which appears to be isoprene, is prepared from acetylene and propylene.  Caoutchouc and the like, synthetic.-By gradually raising the pressure, and if desired increasing also the temperature and time of reaction, the diolefines produced in the manner described above can be polymerized forming liquid and solid products.  Thus, a mixture of ethylene and acetylene, or of allylene with ethylene or propylene, is directly transformed into a rubber-like mass without isolation of the intermediate diolefins.  The diolefines may also be polymerized by means of sodium.  Intermediate polymerization products can be re-converted into diolefines by heat.