baber/WOPTO huggingface dataset:
Patent GB-691035-A (GB)
Title: Process for the production of new synthetic resins from vinyl phenol type polymers
Inventor: EVANS EDWARD
IPC: C08G8/04
Filed: 1948-11-24
Abstract: Polymers and copolymers of ortho and meta vinyl phenols and their lower nuclear homologues are reacted with an aldehyde or aldehyde-generating agent, e.g. formaldehyde, butyraldehyde, furfuraldehyde, hexamethylene tetramine and paraformaldehyde to give thermosetting methylol derivatives.  Copolymers specified are those with styrene compounds, vinyl naphthalenes, acenaphthalene, N-vinyl carbazole, cyclopentadiene, vinyl esters, acrylic esters, acrolein and allyl compounds.  The reaction may take place in solution, e.g. in water, alcohol, ketone or a lower ester, in emulsion, or superficially to give a surface layer, and catalysts, e.g. sodium hydroxide or succinic acid may be present. In a modification, after partial aldehyde condensation the remaining vinyl phenol units may be etherified.  In examples: (1) powdered poly m-vinyl phenol was dissolved in aqueous sodium hydroxide and a molecular equivalent of formaldehyde added; (2) m-vinyl phenol-styrene copolymers were (a) treated with succinic acid and paraformaldehyde, (b) case-hardened with aqueous sodium hydroxide and formaldehyde, or (c) heated with hexamethylene tetramine; (3) poly m-vinyl phenol plasticized with dibutyl phthalate was heated with hexamethylene tetramine; (4) m-vinyl phenol-acrylonitrile copolymers were suspended in alcoholic potash solution with acetaldehyde using t-butyl hydroperoxide as a catalyst; (5) m-vinyl phenolmethyl acrylate copolymer in latex form was treated with (a) ammonia and a formaldehyde solution, or (b) made alkaline with sodium hydroxide and a formaldehyde solution added. Fillers, dyestuffs, pigments, and mould lubricants may be incorporated into the products which may be moulded or formed into films.  Specifications 691,036, 691,037, 691,038 and 691,040 are referred to.
Patent GB-1260884-A (GB)
Title: Reconstituted cigarette filter and method of manufacture
IPC: A24C5/36
Filed: 1969-06-17
Abstract: 1,260,884. Tobacco smoke filters. R. J. REYNOLDS TOBACCO CO. 17 June, 1969 [19 June, 1968], No. 30540/69. Heading A2C. [Also in Division Dl] Cigarette filter rod consisting of bonded fibres e.g. of cellulose acetate, is made from a mixture comprising 75 to 95% by weight of fibres salvaged from rejected filters and 25 to 5% of fibres_that are at least twice the length of the salvaged fibres. Rejected filters are shredded and the paper cover material separated after which the fibres are blended in a mixer with the longer fibres and then processed by a picker machine into a mat about 40" wide and 2" thick. This mat is reduced to #" thickness in a carding machine and then formed into a cylindrical rope of #" diameter in a trumpet-shaped guide. A plasticizer such as triethyl citrate, dimethyl phthalate, diethoxyethyl phthalate &c is added either before or after the formation of the rope which is then formed into rod of 7.65mm diameter by passage through grooved rollers which may have steam injection apertures to activate the plasticizer and reactivate residual plasticizer in the salvaged fibres. The rod is then cured in a stream of cooling air or wrapped in paper and allowed to cure slowly at room temperature.
Patent GB-1107610-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: BECKER KURT MAGNUS
IPC: G21C3/30
Filed: 1965-07-19
Abstract: 1,107,610. Reactors. ATOMENERGI A.B. 19 July, 1965 [24 July, 1964], No. 30635/65. Heading G6C. A nuclear reactor includes at least one fuel rod of fissile material disposed within a flow tube also incorporating fissile material, means being provided for passing cooling liquid, e.g. ordinary or heavy water, through the flow tube So that the liquid boils due to heat received from the rod and the tube. The incorporation of fissile material in the flow tube increases the highest allowable surface heat flux of the fuel rod. The flow tube preferably contains such a quantity of fissile material as to produce a surface heat flux which is higher than that of the fuel rod. The fuel rod may contain natural uranium and the flow tube enriched uranium, or the fuel rod may contain enriched uranium and the flow tube uranium having a higher degree of enrichment. The fuel rod may be tubular and be provided with inner and outer protective coatings of zirconium, the flow tube being similarly protected. Heat insulation consisting of evacuated or gas-filled spaces or a layer of metal oxide, e.g. ZrO 2 , MgO or Al 2 0 3 , may be provided between the fissile material of the flow tube or fuel rod and the outer protective coating. Where this consists of evacuated or gas-filled spaces, these may be formed by providing the outside wall of the flow tube or fuel rod with a corrugated surface, the crests of which contact an outer protective coating of zirconium.
Patent GB-815586-A (GB)
Title: Improvements in or relating to domestic hollow-ware
IPC: A47J45/10
Filed: 1954-10-25
Abstract: 815,586. Cooking utensils. DODDS, A. Oct. 20, 1955 [Oct. 25, 1954], No. 30662/54. Class 66. A domestic utensil 10, Fig. 1, has a detachable handle 14 having an upwardly projecting member 15 at one end engaging with a part 11 on the utensil, and a downwardly projecting abutment 16 at its other end for engagement with a wall of the utensil, the members 15 and 16 being identical in shape and size to enable the handle to be invertible relatively to the utensil. As shown the members 15 and 16 are tongues and the part 11 is a socket. In an alternative construction the members 15 and 16 are sockets and the part 11 is a downwardly projecting tongue. The handle includes insulation 20.
Patent GB-620722-A (GB)
Title: Improvements in or relating to the determination of the water content of solid substances
IPC: G01N27/04
Filed: 1946-10-15
Abstract: 620,722. Conical mills. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Oct. 15. 1946, No. 30704. Convention date, Oct. 18, 1945. [Class 59] [Also in Group XX] In an apparatus for determining the water content of solid substances (see Group XX) the solid is ground in the presence of a suitable water extracting liquid in a conical mill comprising the rotary core 5 having hard wearing grooved surfaces 6 rotating in a cavity the surfaces 7 of which are also grooved. The extracting liquid is circulated between the grinding surfaces and through apertures 8, 9 by means of a press pump 11 mounted in the hollow shaft 10 of the rotary, core 5.
Patent GB-1502537-A (GB)
Title: Desoxystreptamine derivative and its salts processes for preparing these compounds and pharmaceutical compositions containing them
IPC: A61P31/04
Filed: 1976-07-23
Abstract: 1502537 2 - Desoxy - streptamine derivatives ROUSSEL-UCLAF 23 July 1976 [23 July 1975] 30746/76 Heading C2C Novel N 1  - [L(-) - 2 - hydroxy - 4 - aminobutyryl] - 4 - O - [2<SP>1</SP>,6<SP>1</SP> - diamino - 2<SP>1</SP>,6<SP>1</SP> - didesoxy - α,D - glucopyranosyl] - 6 - O - [3<SP>11</SP>- methylamino - 3<SP>11</SP>,4<SP>11</SP>,6<SP>11</SP> - tridesoxy - α,D- xylohexopyranosyl] - 2 - desoxystreptamine (I) and addition salts thereof with mineral or organic acids are prepared by reacting 4-O- [2<SP>1</SP>,6<SP>1</SP> - diamino - 21,61 - didesoxy - α,D - glucopyranosyl] - 6 - O - [3<SP>11</SP> - methylamino - 3<SP>11</SP>,4<SP>11</SP>, 6<SP>11</SP> - tridesoxy - α,D - xylohexopyranosyl] - 2- desoxystreptamine with N - benzyloxycarbonyloxy-succinimide, reacting the resulting novel 4 - O - [21 - amino - 61 - benzyloxycarbonylamino - 2<SP>1</SP>,6<SP>1</SP> - didesoxy - α,D - glucopyranosyl] - 6 - O - [3<SP>11</SP> - methylamino - 3<SP>11</SP>,4<SP>11</SP>, 6<SP>11</SP> - tridesoxy - α,D - xylohexopyranosyl] - 2- desoxystreptamine with the N-hydroxysuccinimide ester of L-(-)-γ-benzyloxycarbonylamino - α - hydroxy - butyric acid and catalytically hydrogenating the resulting novel N 1  - [L - (-) - 2 - hydroxy - 4 - benzyloxycarbonylamino - butyryl] - 4 - O - [2<SP>1</SP> - amino- 61 - benzyloxycarbonylamino - 2<SP>1</SP>,6<SP>1</SP> - didesoxy- α,D - glucopyranosyl] - 6 - O - [3<SP>11</SP> - methylamino - 3<SP>11</SP>,4<SP>11</SP>,6<SP>11</SP> - tridesoxy - α,D - xylohexopyranosyl] - 2 - desoxystreptamine, followed optionally by salification with an appropriate acid. Pharmaceutical compositions having antibiotic activity comprise, as active ingredient, the compound (I) or a pharmaceutically acceptable mineral or organic acid addition salt thereof, in association with a suitable pharmaceutical vehicle.
Patent GB-901230-A (GB)
Title: Ratio measuring spectrophotometer
IPC: G01J3/42
Filed: 1959-09-09
Abstract: 901,230. Automatic voltage control systems. BAUSCH & LOMB OPTICAL CO. Sept. 9, 1959 [Sept. 22, 1958], No. 30756/59. Class 38 (4). [Also in Group XL (b)] Reference pulses produced in the output of a photo-multiplier cell employed in a spectrophotometer (see Group XL (b)) are stabilized in amplitude against variation of the cell sensitivity with the wavelength of the measuring radiation by varying the D.C. supply to the cell. The pulses, which appear over lead 228 and are of negative polarity, are applied to charge a capacitor 226 in the opposite direction to coincident positive pulses of standard amplitude, which appear over lead 224, whereby the capacitor acquires a potential representative of any difference. The difference potential also appears on a capacitor 246 which is associated with a synchronous chopper 236 operating at pulse repetition frequency (60 c/s.). The chopper functions to produce an alternating signal of amplitude and sign determined by the amplitude and polarity of the difference potential, the signal being amplified in amplifiers 254 and 260 and applied to control a valve 266 in a bridge integrator circuit comprised of valves 266 and 270 and the centre-tapped secondary 272 of transformer 274. The primary 276 is supplied with 60 c/s. A.C. (with which the alternating error signal is in phase) and the circuit functions to produce a D.C. potential across a capacitor 280 proportional to the error. The D.C. potential is applied to the grid of a regulator valve 310 in the D.C. power supply unit for the photo-multiplier tube and causes appropriate variation of the supply voltage to maintain the reference pulses constant in amplitude. The standard amplitude pulses are generated by a diode 206 which is rendered conductive for 90 degrees in each cycle of the 60 c/s. power supply in coincidence with the reference pulses. The diode output is squared in an over-driven amplifier 210, and the standard pulses appear on lead 224 through cathode-follower stage 214.
Patent GB-1462703-A (GB)
Title: Information transmitting and receiving systems
IPC: H04N5/00
Filed: 1974-07-11
Abstract: 1462703 Remote control; selective signalling; controlling by ultrasonic waves SONY CORP 11 July 1974 [19 July 1973] 30802/74 Headings G4F and G4H [Also in Divisions H3-H4] Remote control for a TV set is obtained by at least three remote control signals which time duration modulate a carrier signal to produce respective modulated signals (Figs. 4B-4E, not shown) the time durations of which are exponentially related one to another and a receiver receives the time duration modulated signals and converts them to pulse signals for the remote control. As shown in Fig. 2, by pressing one of ten push-buttons SW 1 -SW 10  also closes a switch SW which starts a 40 kHz oscillator 19 to provide an ultrasonic signal from a ceramic radiator 20. The length of the burst of oscillation from 20 is determined by which of the buttons SW 1 -SW 10  is pressed as after a delay time determined by the RC charging time constant selected by R 1 -R 10 . C a transistor Q turns on and this stops the oscillator 19. The lengths of bursts of ultrasonic signal from adjacent buttons increase exponentially. The ultrasonic signal (S 0 , Fig. 3, not shown) is detected at 5, a pulse (Pr) from a reset circuit 7 resets flip-flops 9a-9d of a counter 9 to zero and a pulse generator 6 is started so as to drive the counter 9. A decoder 10 provides a binary output in a 1-2-4-8 code at the end of the ultrasonic signal, a gate signal generator 8 produces a pulse (Pg) to AND gates 11 1 -11 n  and only the AND gate corresponding to the counted output of the counter 9 will produce an output to a control device. The control device can be an electronic tuner including a variable capacity diode. Radio, laser light or infra-red rays can be used instead of ultrasonic waves. The introduction of the Specification refers to control of volume and channels.
Patent GB-1193869-A (GB)
Title: A Vat for the Electrolytic Production of Aluminium or a Part for Such a Vat
Inventor: VARDA GIUSEPPE DE
IPC: C25C3/08
Filed: 1967-07-04
Abstract: 1,193,869. Cryolite vat. MONTECATINI EDISON S.p.A. and G. DE VARDA. 4 July, 1967 [6 July, 1966], No. 30808/67. Heading B1X. [Also in Divisions C1 and C7] A vat for the electrolytic production of Al, or a side wall, or bottom, or fabricated shaped piece (e.g. a brick or plate) for such a vat consists of pure or substantially pure cryolite cast in a mould by fusion of the cryolite itself. The bottom of the vat may be protected with refractory material such as silicon nitride bonded silicon carbide and may be provided with pits for the collection of molten Al. The vat may have an external metal shell and there may be refractory heat-insulating material between the shell and the cryolite. The vat or part therefor may be produced by fusing pure or substantially pure cryolite, pouring the molten cryolite into a mould, allowing it to solidify and separating the resulting casting from the mould. Vacuum moulding may be employed. The moulded pants may be welded together and this may be assisted by inserting molten or powdered cryolite into the joints. A vat may be constructed by pouring the molten cryolite between the metal shell and a shaped carbon body within it. The cryolite is allowed to solidify and the body then removed.
Patent GB-247155-A (GB)
Title: Improvements in rotary engines or pumps
IPC: F01C3/06
Filed: 1925-12-07
Abstract: 247,155. Warschau, H. A. F. L. M. Feb. 7, 1925, [Convention date]. Disc-engine and inclined-shaft type; regulating; reversing.-In a rotary engine or pump in which the rotary and oscillatory piston is formed by an intermediate disc 6 forming a hollow sphere having inlet and outlet slots and pivoted to two rotating spherical sectors on relatively-inclined shafts, as described in Specification 18376/14, the walls of the spherical sheets 7, 7<1> forming the member 6 are thickened so that the sectors 4, 5 are of wedge-shape the breadths of each of which does not exceed or only slightly exceeds the width of the slots 9, 10. The wedge sectors are shouldered at 11, 12 to fit the slots. Pipes 13, 14 are provided for the inlet and discharge passageways. Regulation and reversal may be effected by displacing the shafts 2, 3 relatively to one another.
Patent GB-226821-A (GB)
Title: Improvements in and connected with the super-charging of internal combustion engines
IPC: F02M19/10
Filed: 1924-12-23
Abstract: 226,821. Daimler-Motoren-Ges. Dec. 24, 1923, [Convention date]. Spray carburettors.-In engines supplied occasionally with supercharges by a pump which draws air through a carburettor, the carburettor is provided with air passages which may be enlarged to correspond with the increased volume of air, the enlargement being such that the air velocity past the fuel nozzle during supercharging corresponds with the velocity when the engine draws in its air without the use of the supercharging pump. To maintain this uniform velocity, the carburettor may be provided with an inner fixed choke tube e and outer movable tubes f, g coaxial with the fuel-nozzle h and either adjustable by hand, or loaded by gravity or springs and adjusted automatically so that as the air volume increases, the tubes f, g rise and increase the cross section for air flow. By placing the pump between the carburettor and the cylinder, the air is drawn through the carburettor in a cold and therefore dense condition and moreover the pump acts as an atomizer and mixer thus making it unnecessary to obtain a high degree of atomization in the carburettor.
Patent GB-1031445-A (GB)
Title: Improvements in or relating to electric filament lamps
IPC: H01K1/46
Filed: 1964-08-04
Abstract: 1,031,445. Electric incandescent lamps. LAMPE NORMA SOC AUTO LAMPE S.A. Aug. 4, 1964 [July 29, 1963], No. 30897/64. Heading H1F. A filament lamp comprises a bulb 1 secured in a metal cap 2 having a substantially rectangular cross-section, the cap being secured in a flange 5 extending at right angles to the longitudinal axis of the lamp by means of soldered joints between the surface of the cap and upturned portions 6, 7 at the edge of the aperture in the flange. Orientating means comprising projections 8, 9 or apertures are provided in the flange to co-operate with apertures or projections in the lamp holder. The projections 8, 9 or apertures may be asymmetric to the lamp axis and the flange may have one or more straight edge portions to co-operate with guides on the lampholder.
Patent GB-1247612-A (GB)
Title: Lincomycin derivatives and the manufacture thereof
IPC: C07H15/16
Filed: 1969-06-19
Abstract: 1,247,612. Lincomycin derivatives. UPJOHN CO. 19 June, 1969 [22 July, 1968], No. 31136/69. Heading C2C. Novel lincomycin derivatives of the formulµ where Halo is Cl, Br or I; R is C 1-12  alkyl; R 1  is C 1-20  alkylidene, C 3-8  cycloalkylidine or C 7-12  aralkylidene, and Bu(t) is tertiary butyl, and esters and ethers thereof and acid addition salts thereof are prepared by reacting the appropriate C 1-8  alkyl 7-deoxy-7-(Halo)-a-thiolincosaminides with the corresponding 1.(carbo-t-butoxy)-4- R 1 -L-2-pyrrolidene carboxylic acids and, if desired, subjecting the resulting compounds of Formula IV above to acid-solvolysis. Methyl 7 - deoxy - 7(S) - chloro - α - thiolincosaminide is obtained by reacting methyl α- thiolin cosaminide with triphenylphosphine and chloride in anhydrous acetonitrile. Pharmaceutical compositions, having antibacterial activity, contain the above novel compounds or esters or ethers or acid addition salts thereof together with pharmaceutically acceptable carriers.
Patent GB-1060419-A (GB)
Title: Improved ionisation detector circuit
IPC: G01N27/62
Filed: 1964-08-04
Abstract: 1,060,419. Gas analysis flame detectors. IMPERIAL CHEMICAL INDUSTRIES OF AUSTRALIA & NEW ZEALAND Ltd. Aug. 4, 1964 [Aug. 14, 1963], No. 31272/64. Heading G1N. In order to produce a logarithmic record whereby large or small proportions of ingredients in a mixture are presented visibly, the apparatus, which comprises a flame detector 1, Fig. 3, a source of energy 2 for the flame detector, an electrometer amplifier 3 having an input resistance equal to or greater than 10<SP>11</SP> ohms, and a recorder 4, has a semi-conductor diode 8 passing less than 100 micro amps in the forward direction at an applied potential of less than 0À55 V connected across the input of the electrometer. Compensation for background current through the flame is provided by an auxiliary source 5C, and resistors 5A, 5B, and ganged switches 12, 13 facilitate the connection of capacitors 6 for integrating the signal, or of resistors 11 for a linear response. A slide-wire feedback arrangement 9, responsive to the electrometer output or the recorder, feeds back a signal equal to the signal voltage, for subtraction from the compensator voltage. When functioning as an integrator, the effective capacitor 6 is short circuited by a switch 7 which is momentarily and automatically operated when the pen reaches the top end of the scale to return the pen towards the bottom of the scale, the total integral being measured by the sum of the up scale excursions measured from the zero line to full scale. The apparatus may be combined with an effluent column in an industrial process or with a chromatograph column.
Patent GB-869377-A (GB)
Title: Improvements relating to electro-precipitators
IPC: B03C3/76
Filed: 1958-10-01
Abstract: 869,377. Electrostatic precipitation. HEINRICH, R. F. Oct. 1, 1958, No. 31313/58. Class 39(1). In an electrostatic precipitator, plate like receiving electrodes I are supported parallel to the gas stream in fixed spaced relation to top and/or bottom flat plates 2 and/or 9, 10 mounted rigidly on support bars and the electrode is vibrated in a direction normal to its surface so as to rap against the flat plates. The plates and receiving electrodes are maintained in parallel spaced relationship near the centres of the support bars by washers, the plates being connected to the vibrator shaft 6 by means of lug 8.
Patent GB-1059184-A (GB)
Title: Heat-treated photographic emulsions and their use
IPC: G03C1/498
Filed: 1963-08-08
Abstract: 1,059,184. Photographic emulsions and processes. KODAK Ltd. Aug. 8, 1963 [Aug. 8, 1962], No.31317/63. Addition to 950, 486. Heading G2C. The invention relates to various improvements in Specification 950, 486. In particular (1) the use of polyester supports of melting point at least 250C. e.g. polyethylene terephthalate melting point 285C. or a condensation polymer of cyclohexane dimethanol and terephthalic acid (2) resensitizing the desensensitized silver halide emulsion layer by heating to 100 - 145C. (3) the use of anthraquinone-2-sulpho tauride as desensitizer (4) adding gold and sulphur sensitizers to the emulsion and (5) removing latent images from exposed resensitized layers by applying a mixture of methyl alcohol and water and exposing the layer to radiation rich in red light.
Patent GB-214287-A (GB)
Title: Improvements in or relating to ventilators particularly applicable for use on railway vehicles
IPC: F23L17/02
Filed: 1922-11-16
Abstract: 214,287. Cammell, Laird, & Co., Ltd., and Bailey, A. S. Nov. 16, 1922. Ventilating vehicles.-Ventilators for vehicles, of the kind comprising an open-ended casing a through which a flow of air is induced by the motion of the vehicle band which has supply and exhaust branches c, d, have the casing a fitted internally, on the side a' carrying the branches c, d, with vertical walls e inclined to the axis of the casing and with a central projection f constituted by vertical walls f<1>. The walls e are connected by curved walls e' to the outer sides of the branches c, d, and the projection f, which bridges the space between the inner sides of the branches, is arranged to leave only a narrow vertical channel a* between itself and the opposite wall a<2>. The walls e, e<1>, f<1> extend from the upper face a', Fig. 2, of the casing a to a false bottom g, this arrangement providing a clear space h in which any water or dirt entering the ventilator collects and from which it is ejected by the through current of air. The walls e, e<1>, f' are provided with projecting baffles i to arrest water, dirt, &c. A modification is described in which the walls e are formed of vertical strips spaced apart and the branches c, d formed, on one side, by extensions of the walls f<1> and on the other by vertical plates extending from the outer ends of the walls e. The casing a may be any shape in cross-section and may, as shown in Fig. 6, be constituted partly by the outer wall of the vehicle itself.
Patent GB-358307-A (GB)
Title: Advertising device
IPC: G02B6/00
Filed: 1930-10-20
Abstract: 358,307. Signs. LANGEHEINEKEN, G., 7, Kirchoftstrasse, Varel, Oldenburg, Germany. Oct. 20, 1930, No. 31380. Convention date, Oct. 21, 1929. [Class 3 (ii).] In a sign of the type in which a glass plate a carrying sand-blasted or like depressions b in the form of characters, pictures, &c., is illuminated through its edge, the plate is enclosed between a front transparent mirror c and a rear opaque mirror f, so that a multiple image effect is produced. The device is illuminated by a lamp l in a casing k. A rear cover-plate h may be provided.