baber/WOPTO huggingface dataset:
Patent GB-733274-A (GB)
Title: Improvements in the treatment of anion-exchange resins
IPC: B01D15/04
Filed: 1953-06-05
Abstract: A partially deteriorated anion-exchange resin which is a cross-linked aromatic polymer containing quaternary ammonium groups having an alkanol group, e.g. ethanol, attached to each nitrogen atom is restored by treatment with ethylene chloro- or bromo-hydrin.  The polymer may be a polymer of a vinyl aryl compound, e.g. styrene, or that prepared by reacting an aromatic or chloroalkylaromatic hydrocarbon with an alkyl dihalide in the presence of a Friedel-Craft catalyst, cross-linked with divinyl benzene, ketone or sulphone, divinyl esters of dibasic acids, vinyl esters of acrylic, methacrylic and ethacrylic acids or acrylic diesters of an aliphatic polyhydric alcohol.  The quaternary ammonium groups are introduced by halomethylation followed by treatment with an amine, e.g. N,N-dialkyl-N-ethanolamine.  Alternatively a copolymer of vinyl pyridine and a cross-linking agent may be reacted with an alkylene halohydrin, e.g. ethylene chlorohydrin.  The salts may be converted to the hydroxide by treatment with a strong base.  The treatment with the restoring agent is preferably carried out between 40 and 70 DEG C. in concentrated aqueous solution, and preferably in situ by percolation, with recycling of the restoring agent.ALSO:A partially deteriorated anion-exchange resin which is a cross-linked aromatic copolymer, e.g. quaternary ammonium groups having an alkanol group, e.g. ethanol attached to each nitrogen atom, is restored by treating with ethylene chloro- or bromo-hydrin.  ("Deterioration" is to be interpreted as loss of basicity.)  The resin may be restored either in the exhausted state, when exchangeable hydroxyl groups have been replaced by anions from solution, or in the regenerated state, when the resin contains exchangeable hydroxyl ions.  The treatment is preferably carried out at 40-70 DEG  C. in concentrated aqueous solution, and the warm restoring agent may be slowly percolated and recycled several times.  The restoration process shows best results when applied before the resin has deteriorated by more than 25-40 per cent.
Patent GB-947055-A (GB)
Title: Improvements in methods and devices for performing spectrum analysis, in particular in the far ultraviolet region
Inventor: THOME PAUL
IPC: G01J3/00
Filed: 1960-05-03
Abstract: 947,055. Spectrometers. COMMISSARIAT A L'ENERGIE ATOMIQUE. May 3,1960 [May 13, 1959], No. 1563/60. Heading G2J. [Also in Division H1] A specimen 1 is heated to incandescence by an intense electron beam 4 to emit spectrum lines in the visible and ultra-violet range which are analysed by the diffraction grating 26 or by a prism. Specimens may be moved or changed by hand operated gearing 16, 17 connected to the specimen carrier 14. Specified substances which may be detected in the analysis of steels and other alloys are carbon, sulphur phosphorous and gases such as oxygen, nitrogen or halogens either in the dissolved form or in the form of chemical compounds.
Patent GB-593664-A (GB)
Title: Improvements in or relating to rim brakes for cycles, motor cycles and the like
IPC: B62L1/16
Filed: 1945-06-20
Abstract: 593,664. Cycle brakes. SLADE, R. G. June 20, 1945, No. 15672. [Class 136 (i)] In a rim brake for cycles, motor cycles and the like the usual cable actuates toggle mechanism in pivotal engagement with brake levers 1 which are fulcrummed to a stationary shoeshaped frame 7 secured at its lower extremities to the frame of the cycle, the lower ends of the levers being connected with the brake shoes 10. Plates 15 are pivoted at the lower ends of the levers 1 and provided with a plurality of flat surfaces 16 adapted to bear against the brake shoes 10, a finger grip 15a for manipulation, and abutments 15b to limit its travel. The brake shoes 10 are secured to one side of an L-shaped bracket 9 the other end of which slides in a housing formed on the end of each side of the shoe-shaped frame 7. A spring 13 is anchored at its centre to the frame and bears against a stud provided on the brake-shoes or on the L-shaped bracket.
Patent GB-557670-A (GB)
Title: Improved circuits for oscillators
IPC: H03B5/16
Filed: 1942-11-06
Abstract: 557,670. Valve generating circuits. STANDARD TELEPHONES & CABLES, Ltd. Nov. 6, 1942, No. 15700. Convention date, Nov. 19, 1941. [Class 40 (v)] To maintain the operation of a generator substantially unaltered during periods while its load is short-circuited means are provided for introducing during these periods a high impedance into its circuit. As shown a generator, of the bridgestabilized type of the kind described in Specification 555,523, connected to a load, through transformer T2 which may as part of a telephone switching system be intermittently short-circuited by selectors hunting over sleeve terminals S - C, is provided with a series circuit L2, C2 resonant at the operating frequency. Across one element a gaseous discharge tube is connected across a voltage divider R3, R4 which controls the striking voltage and arranged so that on short circuit the voltage drop across the condenser C2 operates the tube which will thus shunt condenser C2 and so increase the impedance of the circuit L2, C2.
Patent GB-1504198-A (GB)
Title: Laminates
IPC: B32B17/10
Filed: 1975-04-16
Abstract: 1504198 Impact-resistant polycarbonate laminates GENERAL ELECTRIC CO 16 April 1975 [26 April 1974] 15707/75 Heading B5N In an impact-resistant adhesively-bonded laminate for use as a window or windscreen, the innermost layer is a polycarbonate layer of thickness at least 30 and less than 220 mils, e.g. 60-150 mils. having a relatively more brittle scratch-resistant coating of thickness up to 2 mils. on at least its exposed face. The layers may be bonded by a block polysiloxane-polycarbonate copolymer adhesive as defined below. Glass sheets may be strengthened or unstrengthened. Lamination may be carried out in an autoclave using a vacuum bag or ring; an adhesion primer may be used. Suitable scratch - resistant coatings are listed. In examples the following laminates are prepared from glass sheets (G) and polycarbonate layers having scratch-resistant coatings on the exposed faces only (A) or on both faces (B), or not coated (C) (figures represent thickness in mils.); (i) G125-C500-A125, (ii) A500-C500-B60, (iii) A250-C500-C500-B93, (iv) A250- C500-C500-A93, (v) A125-C375-C375- A125, (vi) G125-C250-A375 and (vii) A250- C500-A250; (v) may be used with either face inwards and (vi) and (vii) are comparison examples not within the invention. The adhesive may be 15-60 mils. thick and is prepared by reacting (A) a halogen chainstopped polydiorgarosiloxane composed of 5-200 siloxy units connected by Si-O-Si linkages and (B) a dihydric phenol where Z is H, halogen or lower alkyl and R is H, hydrocarbon or halohydrocarbon and phosgenating the reaction product.
Patent GB-273278-A (GB)
Title: Improvements in or relating to relays for automatically switching off electric line sections
IPC: H02H7/30
Filed: 1927-06-13
Abstract: 273,278. Siemens & Halske Akt.- Ges. June 24, 1926, [Convention date]. Cut-out arrangements; induction relays; electromagnetic s w i t c h e s ; switches partly electromagnetic.-For the protection of sections of a line relays, the time of actuation of which increases with increase of voltage and decreases with increase of current, are used. They are adjustable so that the time of release up to an adjustable limit value of the quotient of voltage and current intensity does not exceed a prescribed value, thereby ensuring that a relay never takes longer than this prescribed time to operate when a fault occurs in its section of line, however long the section. Thereafter the ratio of time of release to the value of the quotient is constant irrespective of the adjustment, thereby ensuring that the relays operate in correct sequence when a fault occurs on a distant section of the line and is not cleared by intermediate relays. One form of such relay is shown in Fig. 4. When the current in line 1 becomes excessively great relatively to the voltage, the force on the core 15 overpowers that on the core 17 and core 15 is therefore drawn down, liberating the Ferraris disc 2 which rotates under the action of the driving element 4 and brake magnet 6 at a rate proportional to the current. A voltage coil 10, opposed by a current coil 12 and spring 8, adjusts a curved slide 3 which is eventually engaged by a pair of contacts 7, whereupon these contacts are closed, and cause the associated circuit breaker to open. The adjustment is obtained by shunting the current coil 12 with a variable resistance 13. In a modified relay, Fig. 5, the time delay is introduced by a thermal element 25 carrying a contact 28 which eventually engages a current slide 26 adjusted by a voltage coil. The thermal element is not in circuit until the current reaches such a value as to rock the lever 33, thereby opening a shunt circuit at 32. Actuation of the lever 33 also causes the contact 28 to approach nearer the slide 26 for the element 25 is secured to one end of the lever 33. Adjustment is obtained by altering the pivot pin 36 of the lever 33.
Patent GB-818920-A (GB)
Title: Lubricating compositions
IPC: C08F8/50
Filed: 1955-12-30
Abstract: A lubricating composition comprises a major proportion of lubricating oil and a minor proportion, sufficient to increase the viscosity index of the composition, of a polymeric product obtained by exposing a homopolymer or copolymer of isobutylene to high-energy ionizing radiation so as to reduce its molecular weight.  Isobutylene copolymers mentioned are polymers of isobutylene with isoprene, styrene, vinyl toluene, vinyl ethers, butadiene, maleic anhydride, vinyl trichlorosilane or acrylonitrile.  The lubricating oil may be mineral (including hydrogenated or white oils), fatty (including animal, vegetable and fish oils and their polymerized or voltolized products) or synthetic, or mixtures of these.  Synthetic oils mentioned are olefin polymers, oils obtained by the reaction of oxides of carbon with hydrogen or by the hydrogenation of coal or its products, cracking-coil tar fractions, coal tar or shale oil distillates, esters of mono- or dicarboxylic acids, complex esters, polyglycol esters, halocarbon oils, polysiloxanes, sulphite or carbonate esters, mercaptals and formals.  The lubricating composition may contain additional ingredients such as dyes, pour depressors, heat-thickened fatty oils, sulphurized fatty oils, organometallic compounds, soaps, sludge dispersers, foam-suppressing agents, antioxidants, thickeners, other viscosity index improvers, oiliness agents, resins, rubber, olefin polymers, voltolized materials (viz. fats, waxes or mineral oils), colloidal solids (e.g. graphite or zinc oxide), solvents and assisting agents (e.g. esters, ketones, alcohols, thioalcohols, amines, aldehydes and halogenated or nitrated compounds).  Specific additives mentioned include organic sulphides, phenyl alpha naphthylamine, polymerized lauryl methacrylate, sulphurized wax olefins, tricresyl phosphate, zinc dihexyl dithiophosphate, 2,6-di-tert. butyl-4-methyl-phenol, P2S5-treated calcium nonyl phenol sulphide and the reaction product of phenol with sulphurchloride-treated diisobutylene.  The high-energy ionizing radiation used in degrading the isobutylene homopolymer or copolymer may comprise beta rays (e.g. from a van de Graaf electron accelerator), gamma rays or neutrons.  The gamma rays may be produced by waste products from an atomic pile, by an atomic pile itself (which may also provide a neutron flux), by naturally occurring radioactive materials (e.g. radium or thorium) or by materials in which radioactivity has been induced by exposure to neutron radiation (e.g. cobalt 60, europium 152 or europium 154). In examples, mineral oil solutions of polyisobutylene or isobutylene/isoprene copolymers are irradiated with gamma rays. The irradiation of isobutylene/styrene copolymers with gamma rays in the absence of a solvent is also mentioned.
Patent GB-612470-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J19/42
Filed: 1946-05-24
Abstract: 612,470. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd. May 24, 1946, No. 15820. Convention date, May 28, 1945. [Class 39 (i)] An electron discharge device, e.g. an ultrahigh-frequency transmitting tube. of the type described in Specification 590,507, has a bulb portion 1, anode 3, grid 4, cathode 5, grid ring 6, shield 17 and dish-shaped header 2. Through the header are sealed radially disposed lead-in structures 7, 8 connected to the spiral cathode filaments terminating at a central castle element 11 carried by a support rod 12. This is joined to a perforated tubular support member 13 which passes coaxially through the central exhaust opening, its flanged upper end overlapping and being joined to a metal cup 14 bonded to the header. Sealed to the bottom of this cup is the exhaust tubulation 10, the perforations 16 in the tubular member 13 permitting evacuation of the envelope.
Patent GB-858340-A (GB)
Title: Improvements in or relating to cheese making
IPC: A23C19/072
Filed: 1959-05-08
Abstract: 858,340. Cheese. TRIGGS, W. W. (Ched-OMatic Corporation). May 8, 1959, No. 15839/59. Class 84. To a suspension of curds in whey intially having an acid content of between 0À16 and 0À25% and a temperature favourable to acid development, pressure is applied and increased while removing whey from the suspension, and the amount and rate of increase in pressure is correlated to the rate of acid development in such manner as to achieve a reduction in moisture content to between 35 and 40% and an increase in acid content to between 0À50 and 0À80% The amount and rate of increase in pressure may be correlated to achieve an increase in acid content to between 0À60 and 0À75% in at least 130 minutes. Drained curds are delivered through a filling pipe 13 into a whey expulsion press 10 for applying controlled pressure to the curds, having a perforated bottom plate 20 for draining off the whey upon downward movement of a hydraulically actuated platen 11 ; whey is expelled also by flowing through the screens 16, 19 of the platen into a chamber 17 from which it is siphoned out. In the loading position of the press the perforations 21 in the plate 20 are sealed against any substantial leakage of whey by upstanding plugs 23 provided on a vertically movable plate 22 which is lowered prior to the application of pressure from the platen. During the pressing, periodic or continuous acidity determinations are made to complete the rate of acid development with the moisture content. After expulsion of the whey, the plate 22 is raised to close the perforations 21 and a hydraulic cylinder 31 is actuated to advance a horizontal knife member and partition 30 through the pressed curd ; a vertical knife 36 is elevated by hydraulic cylinders 37, Fig. 3 (not shown), to its upper, retracted position, an extension piston 32 is advanced several inches, and the knife 37 is thereupon lowered to cut off a block of pressed curd 39. The sequence of operations is repeated until the entire curd block in the press has been extruded, cut and deposited on the conveyer 40. The blocks of curd are passed under a hood maintained at 98-102‹F., are flattened by a series of four rollers, shredded, washed by a spray of water at 100‹F., are deposited in a brine solution at 90-110‹F. having a salt concentration of at least 5% and are removed from the brine by a screw " conveyer " when a salt concentration in the curd of 1À5-2À0% has been achieved, e.g. after one minute, Fig. 5 (not shown). In an alternative embodiment Fig. 6, (not shown), the shredded curd is sprayed with saturated brine.
Patent GB-487100-A (GB)
Title: Improvements in or relating to methods of producing light-insensitive titanium pigments
IPC: C22B34/12
Filed: 1937-06-08
Abstract: Light-insensitive titanium pigments are obtained from ilmenite ore such as that occurring in Virginia by extracting the titanium, iron, manganese, and chromium with concentrated sulphuric acid, removing solid matter from the solution by coagulation with gelatin, iron by crystallization, manganese and chromium compounds by adsorption on gypsum or strontium sulphate, and then subjecting the solution to hydrolysis.  For the adsorption step not less than 9 per cent by weight of the solution of ground gypsum should be used and it should be stirred in the solution for about twelve hours.
Patent GB-131773-A (GB)
Title: Improvements in and relating to Jacking Arrangements for Automobiles, Aeroplanes, Airships, and other Vehicles.
Inventor: HERN ALBERT HENRY FEE
IPC: B66F3/02
Filed: 1918-09-30
Abstract: 131,773. Hern, A. H. F. Sept. 30, 1918. Jacks. - A jacking arrangement for motorvehicles, aeroplanes, airships, &c. has the jack fixed or pivoted to the vehicle and provided with a casing 1, a toothed spindle 3 mounted therein, and a worm 5 carried by the casing and engaging the toothed spindle whereby the spindle may be extended downwardly to raise the vehicle. The toothed spindle 3 is limited within and guided by the central tubular member 2, the upward thrust of the worm 5 is taken up by the ball bearings 13 and the spindle 3 is provided with a foot plate 10.
Patent GB-263409-A (GB)
Title: Improvements in and relating to cut-off mechanism for continuous rod cigarette-making machines
IPC: A24C5/28
Filed: 1926-06-24
Abstract: 263,409. Baron, L. B. June 24, 1926. Cigarette-making machines.-Cut-off mechanism for continuous-rod machines comprises a body 13 rotating in a plane parallel to the line of the rod and one or more knives 14 projecting at a right angle from the body and shaped or set to follow the longitudinal movement of the rod during the cutting operation. As shown in Fig. 5, the knife is curved eccentrically with respect to the centre of rotation. The rod is supported, at the point where cutting takes place, by a horizontal or vertical disc 15<a> provided with radially disposed lugs on its upper or inner surface, plates 19 being secured in slots in the side faces of the lugs and adapted to support the rod and to provide a space between adjacent plates for the passage of the knife. The shaft 10 of the body 13 is driven from a main shaft 2 through spur gearing 3 - - 5 and bevel gearing 8, 9, and the disc 15<a> is driven from the shaft 10 through bevel gearing 21, 22 and spur gearing 23 - - 27. The finished cigarettes pass along a chute 28 to a conveyer belt.
Patent GB-1223161-A (GB)
Title: X-ray contrast agents
IPC: C07D211/76
Filed: 1968-04-03
Abstract: 1,223,161. 8-Tri-iodobenzene derivatives and intermediates therefor. BRACCO INDUSTRIA CHIMICA S.p.A. 3 April, 1968 [6 April, 1967; 16 June, 1967], No. 15979/68. Heading C2C. [Also in Division A5] Novel heterocyclic 8-triiodobenzene derivatives of the Formula I wherein Y is a direct bond or an oxygen atom, alkylene is a straight to branched alkylene radical optionally substituted by a phenyl radical, and X is a C 2 -C 4  alkylene radical optionally interrupted by an oxygen atom; and salts thereof are obtained by cyclizing N-triiodophenyl amides of the Formula II wherein Z is a reactive radical of a strong acid, and, if desired, converting the compounds produced into metal or substituted ammonium salts. The compounds are useful as X-ray contrast agents (see Division A5). The N-triiodophenyl amides of Formula II may be obtained by acylating the corresponding 3-amino, 2,4,6-triiodophenyl alkanoic acid or 3-amino-2,4,6-triiodophenoxyalkanoic acid. α - (3 - Amino - 2,4,6 - tri - iodophenyl butyric or propionic acid is prepared by reacting α-(3- nitrophenyl) propyl or ethyl bromide with potassium cyanide, hydrolysing the α-(3-nitrophenyl) butyro- or propiono-nitrile so produced to give the corresponding carboxylic acid, reducing this to α-(3-aminophenyl) butyric or propionic acid and iodinating this. α - 3 - Amino - 2,4,6 - tri - iodophenyloxyphenyl-acetic acid is prepared by reacting ethyl α-bromophenyl acetate with 3-formylamino-2,4,6-tri-iodophenol to give ethyl α-(3- formylamino - 2,4,6 - tri - iodophenyloxy) phenylacetate which is then hydrolysed. α - Phenyl - # - (3 - amino - 2,4,6 - tri - iodophenyl) propionic acid is obtained by reacting α - phenyl - # - (3 - aminophenyl) propionic acid with iodine chloride.
Patent GB-256013-A (GB)
Title: Improvements in jointing sleeves or ferrules for electric cables
IPC: H01R4/02
Filed: 1925-06-20
Abstract: 256,013. Callender's Cable & Construction Co., Ltd., and Wilson, A. E. June 20,1925. Sleeve couplings.- A split sleeve B for jointing electric cables is formed with one or more grooves B<1>on thin portions that allow the sleeve to be placed in position on the cable ends while open as shown in Fig. 2, and then closed around them as shown in Fig. 3. The sleeve may be cast, drawn, or rolled either in its open form, or in a circular form to be opened before application to the conductors.
Patent GB-712564-A (GB)
Title: Apparatus and method for coating paper
Inventor: MUGGLETON GERALD DEAN
IPC: D21H23/00
Filed: 1952-06-26
Abstract: 712,564. Coating paper. COMBINED LOCKS PAPER CO. June 26, 1952, No. 16108/52. Classes 96 and 140 A paper web 10 passes about a hard-surfaced roll 12 against which it is pressed by two softsurfaced rolls 14 and 16, a coating mixture being applied, at each nip, from a trough 18 via a metering roll 20, transfer roll 22, heterogeneous pattern rolll 24 and reversely-driven roll 26. For washable wall-papers, the roll 14 may apply the coating mixture via the rolls &c. shown in dotted lines, the roll 12 a starch paste, and the roll 16 formaldehyde &c. The nips of the rolls 12, 14 may subtend an angle, e.g. of 90 or 180 degrees with the centre of the roll 12.
Patent GB-1298434-A (GB)
Title: Non-polluting constant output electric power plant
Inventor: KELMAR JOHN JOSEPH
IPC: F01K23/06
Filed: 1971-05-21
Abstract: 1298434 Steam turbine plant J J KELMAR 21 May 1971 16171/71 Heading F1Q [Also in Division F4] A substantially constant output electric power plant comprises a gas producer 7, means 57 for delivering oxygen to the producer to gasify coal therein at a substantially constant rate to produce fuel, a boiler furnace 5, means for delivering oxygen 16, 17, 18 and the fuel 9 to the furnace for burning therein to produce steam and to form products of combustion that include water vapour and CO 2 , means 27 for condensing the water vapour and separating it from the CO 2 , a steam turbine 2, means 3 for conducting the steam to the turbine at a rate to enable it to operate the plant at substantially full capacity continuously, an electric generator 1 driven by the turbine, means 37, 38 operated by surplus power from the plant only during periods of reduced load for liquefying some of the separated CO 2 , air separation apparatus 45, 54 operated by some of the surplus power during the periods of reduced load, means 44 for conducting liquefied CO 2  to the apparatus while it is operating to aid in producing liquid oxygen in excess of the oxygen requirements of the gas producer, means 56 for storing the surplus liquid oxygen for use in the plant between periods of reduced load when the air separation apparatus is not operating and means for warming the liquid oxygen to gasify it before it is used.
Patent GB-167645-A (GB)
Title: Improvements in electrical fuses
IPC: H01H85/38
Filed: 1920-06-16
Abstract: 167,645. Midland Electric Manufacturing Co., Ltd., and Sutherland, H.E. June 16, 1920. Fusible cut-outs. - Relates to bridge-carrier fuses of the type in which the base is provided with a substantially rectangular arcing-chamber. The fuse-carrier i is formed with a projection k adapted to divide the arcing-chamber diagonally and provided with a recess n in its lower face which comes opposite to a diagonal recess c in the bottom of the arcing-chamber. The recess c preferably terminates in a ventilating-opening d at each end. The fuse wire o is arranged on the projection k in the form of a helical twist or loop, as shown in Fig. 2, providing a magnetic blowout for the arc. The construction permits the whole of the fuse wire and its connections to the contacts on the carrier to be accommodated in the arcing-chamber.