baber/WOPTO huggingface dataset:
Patent GB-322200-A (GB)
IPC: G03C7/06
Abstract: 322,200. Johnson, J. Y., (I. G. Farben. industrie Akt.-Ges.). July 20, 1928. Colour filters.-For the purpose of separating the visible rays from the ultra-violet rays of light radiations by filtration, the light is passed through one or more filters of cellulose or its derivatives or of condensation products of urea and formaldehyde. These filters are transparently coloured in such a manner as to absorb practically all visible rays and allow a substantial amount of ultra-violet rays to pass through. Several examples are given in the Specification in which dyes such as fuchsine, diamond green, crystal violet nitrosodimethylaniline &c., are used. Specifications 196,876; 242,274 and 247,288, [both in Class 95, Paints &c.], and 293,350 are referred to.
Patent GB-485154-A (GB)
Title: A new or improved means for connecting hose to fittings or coupling lengths of hose together
IPC: F16L33/18
Filed: 1937-11-24
Abstract: 485,154. Hose couplings. CARPENTER, G., and ELECTRIC HOSE & RUBBER CO., Ltd. Nov. 24, 1937, No. 32344. [Class 99 (i)] A coupling member 1 for a hose 6 is provided with an annular recess 5 to receive the end of the hose, a second recess 8 for a rubber &c. packing ring 9 which is compressed on to the hose by an adjustable sleeve 4 and interposed metal &c. collar 10, and an integral or attached tube or spigot 7. Two or more packing rings 9, with or without a collar 10 between each two, may be used.
Patent GB-1443097-A (GB)
Title: L-asparate of cyclic erythromycin a 6,9-hemiacetal carbonate and process of preparing the same
IPC: A61K31/7042
Filed: 1974-07-22
Abstract: 1443097 L-Aspartate of cyclic erythromycin A 6,9-hemiacetal carbonate INSTYTUT PRZEMYSLU FARMACEUTYCZNEGO 22 July 1974 [28 July 1973] 32396/74 Heading C2C The novel antibiotic, the L-aspartate of cyclic erythromycin A 6,9-hemiacetal carbonate is obtained, optionally as the monohydrate, by reacting substantially stoichiometric proportions of the cyclic carbonate of erythromycin A 6,9-hemiacetal and L-aspartic acid in an aqueous medium (e.g. H 2 O, H 2 O/acetone, H 2 O/ethanol). To isolate the product, the resulting solution may be lyophilized or evaporated with, if necessary, addition of a liquid which forms a binary or ternary azeotropic mixture therewith.
Patent GB-193540-A (GB)
Title: Improvements in furniture for sitting or lying upon
IPC: A47C1/023
Filed: 1921-12-03
Abstract: 193,540. Nuell, A. P. Dec. 3, 1921. Folding and collapsable seats.-The seating accommodation of a chair is increased by providing a folding secondary chair inside the seat of the primary chair and attached to a rotating side of the seat. The seat b is attached to the side e, being pivoted at f, and has legs a and a back c hinged to it. The legs d are made telescopic or hinged as shown in Fig. 2, and are locked by one or more jointed bars r, Fig. 3. The back c rests against the back o of the primary chair or is fastened to it by a catch p, and is supported by one or more jointed bars q. The drop-in seat a of the primary chair acts as a stop against the side e to prevent collapse of the secondary chair. In a modification, shown in Fig. 4, links v are attached to the side e and are pivoted to the seat b to leave a space between the two chairs. Two secondary chairs may be attached to the primary chair, one being extended on each side.
Patent GB-193541-A (GB)
Title: Improvements in or relating to pianofortes
IPC: G10C3/06
Filed: 1921-12-03
Abstract: 193,541. Steward, H. J. Dec. 3, 1921. Pianoforte soundboards.-To obtain correct down-bearing with a bar-less soundboard, or to improve the tone in a pianoforte having a barred soundboard, lateral force is applied endways to the grain of the soundboard by means of adjusting-screws at a arranged in a rebate along the bottom edge of the wrest-plank. Slots are provided round the screws b to allow of the arching movement of the soundboard. The adjusting- screws relieve the back of a portion of the strain due to the tension of the strings.
Patent GB-800099-A (GB)
Title: Two liquid layer salt conversion process
IPC: C01C3/20
Filed: 1955-11-15
Abstract: Salts or other compounds forming ions are made by double decomposition in which one salt dissolved in a solvent flows in counter current with another solvent containing a second salt whereby an interchange of ions is effected, the two solvents being immiscible.  The two product solutions are separated and the salts recovered.  Preferably each salt is substantially soluble only in its original solvent.  Solvents which may be used for treating alkali salts include water, alcohol, di-butylamine, morpholine, dimethyl formamide, ethylene diamine, tetraethylene glycol and dimethyl ether. In examples, KCNS dissolved in n-butylamine is treated in counterflow with aqueous concentrated NaOH to produce an aqueous solution of KOH and NaCNS dissolved in n-butylamine; a solution of NaBH4 in tri-ethylamine is treated with an aqueous solution of BaBr2 to produce BalBH4)2 in triethylamine and an aqueous solution of NaBr; KCl dissolved in n-butylamine is treated with aqueous Na2CO3 solution to produce potassium carbonate dissolved in water and NaCl in butylamine.  Other solvents which can be used with an aqueous solution of barium bromide are acetonitrile, tetrahydrofuran, methylal, ethyl acetate, n-butyl alcohol and n-propyl alcohol.
Patent GB-329609-A (GB)
Title: Variable speed gearing, particularly for motor vehicles
IPC: F16H3/04
Filed: 1929-10-28
Abstract: 329,609. Fiat Soc. Anon. Nov. 24, 1928, [Convention date]. Addition to 324,563. Variable-speed gearing. - Comprises minor improvements in the four-speed gearing for automobiles of the parent Specification which was characterized by an eccentric train 6, 7, 9, 10 in one plane supported on a fixed eccentric ring 14 projecting into that plane. Different arrangements of clutch and supporting sleeves and of bearings are described. In the arrangement shown, the first gear 5 on countershaft 3 instead of being driven directly from a separater pinion on the driving-shaft 2 is driven from the eccentrically-supported gear 9, thus giving a speed reduction to the countershaft drives.
Patent GB-1402715-A (GB)
Title: Lead halide photographic materials
IPC: G03C1/725
Filed: 1971-07-13
Abstract: 1402715 Photographic lead halide materials KODAK LTD 10 Oct 1972 [13 July 1971] 32787/71 Heading G2C A photo-developable material comprises lead chloroiodide with 60 to 80 mole per cent of lead chloride, a urazole as halogen acceptor and a proteinaceous hydrophilic colloid. The urazole may be substituted in the 1-and/or 4-position by amino, aryl or alkyl groups. In the example, aqueous solutions of lead nitrate and potassium chloroiodide (4:1 molar ratio) are mixed with aqueous gum acacia solution, coagulated by adding alcohol and dispersed in gelatine, urazole added and the emulsion coated on a support. The material is imagewise exposed to flash and developed by uniform exposure to fluorescent lighting.
Patent GB-489846-A (GB)
Title: Improvements in or relating to electron-optical systems
IPC: H01J29/62
Filed: 1936-11-30
Abstract: 489,846. Electron lenses. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Nov. 30, 1936, Nos. 32798, 32799, and 32800. Convention dates, Nov. 30, 1935, Dec. 24, 1935, and Dec. 31, 1935. [Class 39 (i)] An electron image is accelerated and focused by a system of lens electrodes, the potential of at least one of which is variable, whereby the magnification of the image is varied. The apparatus shown in Fig. 1 comprises an evacuated envelope 1 containing a cathode 3 of photo-sensitive or secondary emitting material and curved as described in Specification 488,920, by which an electron image corresponding to a light image is thrown on to a fluorescent screen 9 for direct vision, or on to a scanned mosaic or a direct scanning device as described in Specification 368,309. The electrode elements which constitute the structure for producing variable magnification comprises a series of ring-shaped electrodes 11a ... 11f to which potentials are applied from a source of potential A which may be variable, and a series of resistors 12a ... 12f which may be built into the structure of the device as described in Specification 484,099, an accelerating electrode 15 of mesh or solid structure, and an electrode 13 to which a variable potential is applied by a potentiometer B<1> and sliding contact 13<1>. The electrode may be disc shaped as shown with an aperture 13a of a smaller diameter than that of the ring electrodes and two such disc electrodes may be used with apertures of the same or different sizes. Alternatively, the electrode may be in the form of a thick cylinder of substantial length. In the arrangement shown in Fig. 10, the variable magnification potential is applied to two disc electrodes 42, 52 disposed as shown between a cylindrical electrode 5 attached to the cathode 3, a cylindrical electrode 7 and the accelerating electrode 9. Alternatively, either the electrode 42 or 52 may be omitted. The Specification as open to inspection under Sect. 91 comprises also an arrangement, Fig. 8 (Cancelled), in which the system consists of a tubular electrode 7 to which a variable potential is applied in combination with an electrode 5 fixed to the cathode and the accelerating electrode 9, and also an arrangement of the kind shown in Fig. 1 in which the variable potential electrode 13 is omitted. This subjectmatter does not appear in the Specification as accepted.
Patent GB-386399-A (GB)
Title: Improvements in or relating to grinding, polishing and like machines
IPC: B24B23/04
Filed: 1931-11-27
Abstract: 386,399. Portable grinding-machines. PORRITT, G. F. and PORRITT, J. N., Bank Top Cabinet Works, Dewsbury, Yorkshire. Nov. 27, 1931, No. 32868. [Class 60.] Flat extended surfaces; surfacing; spindles.- A grinding, polishing, &c. machine for treating flat wooden and other surfaces consists of an electric motor I mounted on a housing 2, the shaft 3 of the motor within the housing carrying two oppositely disposed eccentrics 4, 5. The housing is provided with handles 12, and dished to accommodate channel &c. guides 6 for tools 7, which are oppositely reciprocated, through connecting-rods 10, by the eccentrics; ball bearings may be employed at the eccentric and other end of the rods 10. The tools have rollers engaging the guides 6 and may be arranged to carry sheets of abrasive cloth &c. or to carry polishing-stones. The motor may drive the shaft 3 through gearing. Specification 370,269 is referred to.
Patent GB-195698-A (GB)
Title: Improvements in or relating to the measurement of alternating voltages of any freqnency
IPC: G01R19/00
Filed: 1921-12-07
Abstract: 195,698. Moullin, E. B. Dec. 7, 1921. Current meters; testing and calibrating instruments; resistances, measuring; measuring alternating component of pulsating current.-A directreading voltmeter for relatively small alternating voltages of any frequency comprises a threeelectrode valve having the grid connected to the filament through a resistance so that it becomes negatively charged to about 0.9 volts, the resulting decrease of mean anode current, consequent upon the application of an alternating potential difference between the grid and filament, being measured on a galvanometer in the anode circuit calibrated to read directly in terms of the applied potential difference. A condenser is connected to the grid for the purpose of rendering the readings independent of frequency, and another condenser is connected between the anode and filament to reduce alternating fluctuations of anode potential. A zero adjuster is provided to correct for small changes in mean anode potential. The alternating component of mixed voltage conditions can be measured since the apparatus is not affected by small steady potential differences. The apparatus may be permanently mounted in a box with terminals for the batteries and applied circuit. The instrument may be calibrated at low frequencies by connecting it across a known resistance and applying a known alternating current. The effective resistance of the apparatus may be measured by making calibrations with a large and small grid condenser and hence the power absorbed from the applied circuit can be calculated.
Patent GB-1104974-A (GB)
Title: Improvements in bladder type accumulators
IPC: F15B1/10
Filed: 1965-08-02
Abstract: 1,104,974. Hydraulic accumulators. K. SUGIMURA. Aug. 2, 1965 [Nov. 26, 1964], No.32944/65. Heading F1P. The inner wall of the rigid outer longitudinal casing 1, Fig. 1a, of a hydraulic accumulator of the gas filled bladder type has an annular transverse groove 9 which is connected by casing bores 12, 12' to a pressure gauge and a hydraulic pressure source respectively and is covered by a ring 11 having a plurality of equally spaced ports 10 through which the fluid-pressure gains access to the exterior of the bladder 4. On a reduction of hydraulic pressure accompanied by expansion of the bladder, the ports 10 are closed by discs 13 secured to the outer wall of said bladder. In a modification ports 10, Fig. 3b are closed by resilient tongues 14 projecting inwardly of a ring 15 within the ring 11. In a further modification the ports 10, Fig. 7a (not shown) are closed when a split ring 17 is expanded by the bladder.
Patent GB-743167-A (GB)
Title: Knife-edge bearings
Inventor: PERRY LESTER
IPC: G01G21/04
Filed: 1953-11-27
Abstract: 743,167. Knife-edge bearings. PERRY & SONS (SCALEMAKERS), Ltd., G. Nov. 29, 1954 [Nov. 27,1953], No. 32948/53. Class 12 (1). A knife-edge bearing comprises a pair of grooved blocks 14 engaged by cooperating knife-edges 16 and located in parallel channelshaped members 11, 12 which are interconnected by a loop 13 at their upper ends. The lower ends of the channels are open for the reception of a yoke member 17 which is held in position by split-pins 18. The knifeedges 16 are secured to a beam 15. The channel-members 11, 12 and loop portion 13 are made from a single blank of sheet metal.
Patent GB-810688-A (GB)
Title: Detergent compositions
Inventor: ASHFORTH GEORGE KENNETH
IPC: C11D3/20
Filed: 1956-10-29
Abstract: A detergent composition comprises (a) one or more anionic detergents, of which at least one is an alkyl sulphate containing 10-20 carbon atoms, such as may be derived from tallow or palm kernel alcohols, and as a suds builder; (b) an alkyl p-hydroxybenzoate in which the alkyl group contains 10-16, preferably 12-14, carbon atoms, usually in an amount of 10-40 per cent by weight of (a).  The anionic detergents may include sodium alkylbenzene sulphonate containing 9-15 carbon atoms in the alkyl group, preferably dodecyl (from tetrapropylene).  Other detergents which may be included are isethionates, taurines and sulphated partial esters of fatty acids and polyhydric alcohols. Alkali metal carbonates, silicates, tripolyphosphates, sulphates, persalts, carboxymethylcellulose, fatty acid alkanolamides or glycerolamides, optical bleaching agents, perfume, and colouring matter may also be incorporated. Specification 572,304 is referred to.
Patent GB-245457-A (GB)
Title: Improvements in or relating to loud speaking telephones
IPC: H04R7/08
Filed: 1925-12-31
Abstract: 245,457. Pelletier, G. Dec. 31, 1924, [Convention date]. Magnetic instruments; diaphragms.-In a loud speaking telephone the sound reproducing system comprises three diaphragms, one of which is mechanically independent of the others. The instrument comprises a casing 1 mounted on a support 2 and containing a second casing 3 having the usual magnet system. The magnet system acts on a diaphragm 7 which is supported between a shoulder on a ring 9 and the casing 1 and has apertures 10 and slits 11 to increase its elasticity. The centre of the diaphragm 7 is rigidly or flexibly connected to a corrugated metal conical diaphragm 12 which is supported, together with a third diaphragm 17, between the ring 9 and a cover 15, rings 16 of paper &c. being interposed between the diaphragms and the diaphragm 17 and cover 15. The vibrations of the diaphragms 7, 12 caused by the telephone currents are transmitted to the free diaphragm 17 through a medium, such as air, a deformable material, oil, vaseline, &c., contained within the space 19. The casing 3 is screw-threaded within the casing 1 and a screw 20 located in a, slot in the casing 1 facilitates adjustment of the magnet system relatively to the diaphragm 7. The cover 15 is provided with a horn attachment 18.
Patent GB-1110803-A (GB)
Title: Vulcanizable compositions
IPC: C08K3/34
Filed: 1965-08-02
Abstract: A vulcanizable composition comprises (1) the condensate of a saturated monoepoxide with a minor proportion of a monoethylenically unsaturated monoepoxide and (2) 5 to 45 mls. per 100 g. of the condensate, of a clay type filler, being a finely divided aluminium silicate or magnesium silicate in which it is preferred that at least 90% of the particles have a diameter less than 5 microns.  The saturated epoxides generally have the formula <FORM:1110803/C3/1> in which R is a hydrogen atom or a saturated and unsubstituted hydrocarbon or hydrocarbonoxy group, e.g. ethylene, propylene, styrene oxides and phenyl glycidyl ether.  The unsaturated epoxide preferably has the formula <FORM:1110803/C3/2> in which one of the groups Q1 and Q represents a hydrogen, whilst the other represents a monoethylenically unsaturated hydrocarbon group, or in which Q and Q1 represent hydrocarbon groups which may be linked together to form a cyclo-aliphatic group, one only of said hydrocarbon groups containing a monoethylenically unsaturated group.  The hydrocarbon groups may contain ether or ester groups.  Suitable unsaturated epoxides are butadiene monoxide, allyl glycidyl ether, vinyl cyclohexene monoxide, glycidyl acrylate and 2-methyl-5,6-epoxyhexene-1. In the examples a copolymer of propylene oxide and allyl glycidyl ether is prepared using an Al(C2H5)3/Zn(C2H5)2 mixture as catalyst and a hydrocarbon solvent.  The copolymer is then compounded with, in Example 1, (i) an aluminium silicate filler, (ii) kaolin clay, (iii) carbon black (for comparison), and in Example 2, (i) aluminium silicate filler, (ii) and (iii) kaolin, (iv) talc (hydrated magnesium silicate), and (v) precipitated silica and with carbon black (for comparison).  Sulphur and conventional vulcanizing agents are added and the mixtures vulcanized.
Patent GB-1118615-A (GB)
Title: A process for the production of elastomeric diene polymers with improved properties
Inventor: NUTZEL KARL
IPC: C08C19/00
Filed: 1965-08-02
Abstract: A diene polymer having a Mooney plasticity between 15 and 80 ML-4 at from  - 30 DEG  to + 200 DEG  C. is reacted with an inorganic oxygen-free halide of sulphur preferably using 0.01 to 1.5 parts per 100 of the polymer.  Specified polymers are polybutadiene, especially 1,4-cis polybutadiene, polyisoprene, butadiene-acrylonitrile or -styrene, polychloroprene and ethylene-propylene-terpolymers, e.g. with dicyclopentadiene, norbornadiene, cyclooctadiene and hexa-1,5-diene.  Specified sulphur halides are disulphur dichloride and dibromide and sulphur dichloride and dibromide.  The reaction may take place with the polymer in solution in e.g. a hydrocarbon or chlorinated hydrocarbon while the polymer may be mixed with a rubber extending oil before or after this treatment, the usual compounding ingredients added and the mixture vulcanized.
Patent GB-1534462-A (GB)
Title: Dust suppressors
IPC: B25D17/16
Filed: 1977-08-05
Abstract: 1534462 Drill dust suppressor G EDWARDS D MORGAN E G HOWELLS and G H GOODHAND 5 Aug 1977 33012/77 Heading B3C [Also in Divisions B4 and F4] A dust suppressor for an air flushed rotarypercussive rock drill comprises a cowl 16 blanked off at one end by a plate 17 formed with an aperture for a drilling rod 12 and open at its other end to enclose the entry of a hole drilled by the drill, a vent pipe 18 projecting laterally from the side of the cowl and spray means for injecting a liquid spray into the vent pipe so that the spray is directed away from the cowl, the spray means comprising a liquid pipe 20 disposed co-axially within a compressed gas pipe 21 whose outlet end projects beyond that of the liquid pipe.
Patent GB-466568-A (GB)
Title: Improvements in or relating to devices for counting variations in speed
IPC: G01P3/18
Filed: 1935-11-28
Abstract: 466,568. Counting speed and other variations. KIENZLE, H. Nov. 28, 1935, No. 33019. Convention date, Nov. 28, 1934. [Classes 106 (i) and 106 (iii)] A device for counting in units all variations up or down in the speed of a motor-vehicle during a journey is used to check the operations of drivers following a regular route. The vehicle axle drives a centrifugal governor 1 which moves a cylindrical toothed rack 2 engaging a toothed wheel 3 carrying a spring - pressed pawl 4 driving a counting mechanism 8 through a ratchet 6. By using a second ratchet gear and counting mechanism, retardations may be counted as well as accelerations. A known device is used for resetting the device to zero. The Specification as open to inspection under Sect. 91 comprises also a device stated to be used for counting variations from a predetermined mains voltage. Coils 11, Fig. 2 (Cancelled), connected to the voltage excite poles 10, the rotary armature 9 carrying a pawl 4 for driving the counting mechanism. This subject-matter does not appear in the Specification as accepted.
Patent GB-942822-A (GB)
Title: A process for the production of planographic printing plates having an aluminium support
IPC: C07D285/135
Filed: 1960-09-26
Abstract: The invention comprises compounds of formula: <FORM:0942822/C2/1> in which z is (I) the group -S.A.S.- where A is an alkylene group containing 4 to 10 carbon atoms, a xylylene group which may be substituted by alkyl groups, or an ether group of formula -(CH2CH2O)n-CH2CH2- where n is 1 to 5 or (II) z is the group -NH.B.NH- where B is an alkylene group containing 4 to 10 carbon atoms, a cycloalkylene group or an arylene group. The compounds where z is -S.A.S- are prepared by reacting 2 mols of 2,5-dimercapto- 1,3,4- thiadiazole with 1 mole of an a , o -dihalogenoalkane, a dihalogenoaralkane or an a , o -dihalogenopolyether; compounds where z is -NH.B.NH- are prepared by reacting a 4,41-(1,4-alkylene, cycloalkylene or arylene)- dithiosemicarbazide with carbon disulphide. Specifications 730,259 and 942,823 are referred to.
Patent GB-724069-A (GB)
Title: Fumigant composition comprising (2-bromoethyl) benzene
IPC: A01N29/10
Filed: 1952-12-31
Abstract: A soil fumigant composition comprises (2-bromoethyl) benzene in the form of (a) a solution in a mineral oil having a flash point above 100 DEG F. and boiling almost entirely above 130 DEG F.; (b) an aqueous emulsion; (c) an emulsifiable concentrate containing, if desired, a water-immiscible organic solvent, and (d) a dust with an inert solid such as chalk, talc, pyrophyllite, altapulgite, Fullers earth or bentonite.  For (c) the organic liquid may be a petroleum oil, toluene, liquid halohydrocarbons or a synthetic oil such as a methylated naphthalene.  Specified emulsifiers are (a) non-ionic e.g. alkylene oxide with phenols or organic acids such as lauric, stearic, oleic or ricinoleic, sorbitan laurate or stearate, sorbitan stearate polyoxyethylene derivatives, alkylated aryl polyether alcohols, and (b) ionic such as mahogany soaps and sodium lauryl sulphate.  Plant growth media containing (2-bromoethyl) benzene are included.