baber/WOPTO huggingface dataset:
Patent GB-485478-A (GB)
Title: Improvements in the manufacture and production of valuable lubricating oils
Filed: 1936-11-26
Abstract: Lubricating oils are prepared by treating hydrocarbon mixtures obtained by the conversion of oxides of carbon, particularly carbon monoxide, with hydrogen, and which consist practically completely of paraffin hydrocarbons boiling in the range between 170 and 250 DEG C., with silent electric discharges, preferably those of high frequency.  The oils obtained may be subjected to an aftertreatment with liquefied normally gaseous hydrocarbons, or refined with sulphuric acid or bleaching earths, if necessary after solution in light hydrocarbons, such as propane or butane. In an example, a hydrocarbon mixture boiling mainly between 180 and 250 DEG  C. prepared from carbon monoxide and hydrogen is treated at room temperature under a pressure of 2 to 5 mm. of mercury with silent electric discharges of 7000 volts and 1000 periods for 20 hours, the temperature being gradually raised during the course of the treatment to such an extent that the reaction mass remains liquid. Specifications 305,553, [Class 91], and 449,717, [Group IV], are referred to.
Patent GB-1067785-A (GB)
Title: Process for the manufacture of 2-chlorobutene-(2)
IPC: B01J27/22
Filed: 1965-07-29
Abstract: 2-Chlorobutene-(2) is prepared by the dehydrochlorination of 2,2-dichlorobutane in the presence of a catalyst consisting of one or more of the metals Ca, Sr, Ba, Mg, Ni, Co, Fe, Zn, Cd and Cu and/or their chlorides and/or oxides and optionally a carrier, and the resulting 2-chlorobutene-(2) is purified by scrubbing with water and/or distillation.  The dehydrochlorination is preferably effected at 50 DEG  to 400 DEG  C. optionally in the presence of an inert gas. Specified catalyst carriers are kaolin, kieselguhr, glass powder, porcelain, asbestos, pumice and active carbon.
Patent GB-1236423-A (GB)
Title: Colour image recording member
IPC: G03C1/494
Filed: 1968-02-15
Abstract: 1,236,423. Photochromic materials and uses thereof. CANON K.K. 15 Feb., 1968 [20 Feb., 1967; 31 May, 1967; 19 June, 1967; 2 Aug., 1967; 16 Aug., 1967], No. 32492/70. Divided out of 1,236,421. Heading C4S. [Also in Division G2] A recording member for reproducing substantially in their original colours (i.e. positive to positive) multicolour images (e.g. colour photographs) projected thereon and containing colours distributed substantially over the visible spectrum comprises a base with a layer of photochromic material containing three or more photochromic reagents each of different colour eliminating absorption peaks (e.g. 400-500 mÁ, 500-600 mÁ and 600-700 mÁ), the reagents being normally coloured or having characteristic colour development absorption peaks outside the visible spectrum. The reagents may each contain the same photochromic compound or collectively two, three or more compounds in a single or composite layer structure. Normally transparent materials may be blanket exposed to U.V. or thermal radiation to effect colorization. The reagent may contain a photochromic compound and a colour control agent which shifts the natural absorption peak and may be a film forming material, solvent, a chemical additive or combinations thereof. A large number of photochromic materials are exemplified of types such as spiropyrans, anils, semicarbazones, and spiropyrans with phenols, carboxylic acids, strong acids (mineral acids), solid acids or bases. Figs. 5(a) to 5(d) (not shown) indicate absorption spectra for cinnamic aldehyde semicarbazone, N-salicylidene-n-toluidine, N - 41 - methylsalicylidene aniline and N- salicylideneaniline, Fig. 5(e) shows spectra for 8<SP>1 </SP>- carboxy - 1,3,3 - trimethylindolinobenzopyrylspiran in acetone, methyl alcohol and propylalcohol. Alternatively 6<SP>1</SP>,8<SP>1</SP>-dibromo-1, 3,3-trimethylindolinobenzopyryl-spiran may be used with N,N-dimethylformamide on methyl alcohol solution (Fig. 5(f)), 6<SP>1</SP>-nitro- 8<SP>1</SP>-methoxy- 1,3,3 - trimethylindolinobenzopyrylspiran with methyl alcohol, benzene or dioxane; 5<SP>1</SP>-nitro- 8<SP>1</SP> - methoxy - 1,3,3 - trimethylindolinobenzopyrylspiran in benzene or methyl alcohol; and 6<SP>1</SP> - nitro - 1,3,3 - trimethylindolinobenzopyrylspiran in polystyrene, p-nitrophenol added polystyrene, or malonic acid added polystyrene film. Other solvents and film forming materials are disclosed. The support may be paper, glass, metal or a film. The material may be in thin layer form without a dispersing agent or matrix, a transparent high polymer film coating securing the material. The recording member may also be as in the parent Specification and reference is made to co-divisional Specification 1,236,424. The projection light may be in the visible range, viewing under weak white light illumination and erasure by heat or U.V. radiation.
Patent GB-1045099-A (GB)
Title: Oil scraper ring for internal combustion engine pistons
IPC: F16J9/06
Filed: 1965-07-29
Abstract: 1,045,099. Piston rings. H. MAHLE, and E. MAHLE, [trading as MAHLE KOMM. GES.]. July 29, 1965 [Aug. 4. 1964], No. 32500/65. Heading F2T. An oil-scraper ring 10 for internal-combustion engines is formed from light metal and provided with flanges 11 connected to a wall having oil-flow passages 12, the ring being expanded by a spring ring 20 corrugated in the axial direction. The ring may have a modulus of elasticity of between 7,500 and 8,000 kg./eq: mm. Various proportions of the thickness and height of the flanges in relation to the ring diameter are given.
Patent GB-1124272-A (GB)
Title: Novel 2 - amino - 2,3 - dihydro - 3,3 - polymethylene - 5 - benzofuranols and derivatives thereof
IPC: A01N43/12
Filed: 1965-07-29
Abstract: Compounds of the general formula <FORM:1124272/C2/1> (wherein R3 is hydrogen or C1- 6 alkanoyl, n is 4-7, R1 and R2 taken separately are C1- 8 alkyl, phenyl, (C1- 8 alkyl) phenyl, (C1- 8 alkoxy) phenyl or halophenyl, provided that R1 and R2 are not simultaneously selected from phenyl and substituted phenyl, or R1 and R2 taken together with -N< constitute a saturated heterocyclic radical <FORM:1124272/C2/2> of from 5 to 7 nuclear atoms, wherein Z is an alkylene, oxadialkylene, thiadialkylene or N-(C1- 8 alkyl) azadialkylene radical) and their acid addition salts are prepared by condensing p-benzoquinone with a compound of the formula <FORM:1124272/C2/3> optionally followed by acylation and/or salt formation.  The halophenyl groups contain one or more halogen atoms.  The compounds of the invention in which -NR1R2 is a heterocyclic radical are central nervous system stimulants.
Patent GB-436485-A (GB)
Title: Improvements in brakes for vehicles
IPC: B60T11/04
Filed: 1934-11-12
Abstract: 436,485. Brakes. BENDIX AVIATION CORPORATION, 105, West Adams Street, Chicago, U.S.A. Nov. 12, 1934, No. 32537. Convention date, Nov. 13, 1933. Addition to 427,311. [Class 103 (i)] A link brake transmission system comprises a cross-shaft 28 mounted on the central portion of the X-shaped chassis-reinforcing-member 22. The shaft 28 is supported on the frame by levers 24, 26 which are pivoted to the frame at 41. The brake pedal 23 is connected by a compression link 27 to the lever 24 at 30. The hand lever 40 is connected by a tension link 37 with the lever 24 at 38. The front brakes are connected to cables 13 and the rear brakes to cables 14. In a modification the cross-shaft and levers 24, 26 are used to operate the rear brakes only by means of the hand lever and the foot-pedal applies the four-wheel-brakes by hydraulic transmission passing along the arms of the X-shaped member 22. The cross-shaft and levers may be replaced by a member formed from a single stamping bent up and welded to form the two levers and a cross-member of box-shape. In a further modification the footpedal is connected to the lever 24 by compression and tension links to avoid twisting of the shaft 28 and a further lever is arranged parallel to the lever 24 to which the hand lever is connected.
Patent GB-805929-A (GB)
Title: Improvements in or relating to a cushioning adjustment for a piston and cylinder device
IPC: F16F9/44
Filed: 1956-10-25
Abstract: 805,929. Valves; hydraulic jacks. FLICKREEDY CORPORATION. Oct. 25,1956 [Dec. 16, 1955], No. 32538/56. Classes 69 (2) and 135. A cylinder 4 has a head 6 at each end incorporating a port 12 through which fluid is admitted to, and exhausted from, either side of a piston 10 with cup seals 11; tie-rods 8 interconnect the heads 6. The piston is provided with a plunger 13 that enters a portion 14 of the port 12 to retard the piston towards the end of its stroke and in order to obtain a gradual and adjustable retardation a by-pass passage 15, 16 is located between the cylinder and the port 12 beyond the furthest protrusion of the plunger 13. The passage 15, 16 is formed with a seat 17, with which seat co-operates a threaded needle valve 18 having an hexagonal socket for adjustment purposes; the valve is disposed in a ring- nut 21 having tool sockets which supports a sealing ring 24 of tetrafluoroethylene, with an internal diameter equal to the pitch diameter of the internal threads of the nut 21; leakage is prevented by tightening the latter, so expanding the ring 24 into more intimate contact with the valve 18 threads. The ring and nut also act as a lock-nut but the valve may be adjusted directly without moving any other element. A similar valve, not shown, is positioned at the other end of the cylinder.
Patent GB-1270810-A (GB)
Title: Nitroimidazole derivatives
Inventor: ROSS WILLIAM JAMES
IPC: C07D233/94
Filed: 1968-08-06
Abstract: 1,270,810. Nitroimidazole derivatives. LILLY INDUSTRIES Ltd. 6 Aug., 1969 [6 Aug., 1968; 9 Sept., 1968; 27 June, 1969], Nos. 37562/68, 42784/68 and 32703/69. Heading C2C. Novel compounds of Formula I wherein R is either: (i) phenyl optionally substituted by from 1 to 3 groups, which may be the same or different, selected from alkyl, cycloalkyl, phenyl, alkoxy, halogen, trifluoromethyl, nitro, amino, dialkylamino; aminoalkyl in which the amino nitrogen optionally forms part of a heterocyclic ring; carboxy and salts, esters and amides thereof; hydroxymethyl and esters thereof with alkanoic acids; or formyl and its acetals and thioacetals (open or cyclic), oximes, oxime ethers, semicarbazones, thiosemicarbazones, anils, and hydrazones such as those formed with phenylhydrazine, N-aminomorpholine and N-aminohydantoin; (ii) naphthyl optionally substituted by alkyl or alkoxy; or (iii) a heterocyclic ring selected from those having the Formulµ II to VIII wherein R<SP>3</SP> and R<SP>4</SP> are independently hydrogen or alkyl of 1 to 4 carbon atoms, and R<SP>1</SP> and R<SP>2</SP> are independently hydrogen, alkyl, phenylalkyl, halogen, trifluoromethyl, nitro, amino or dialkylamino; and X is the group -CR<SP>a</SP>=CHR<SP>b</SP> and additionally, when R is not unsubstituted phenyl, unsubstituted furyl, halophenyl or tolyl, X is the group -CHR<SP>a</SP>-CHR<SP>b</SP>-OR<SP>c</SP> where R<SP>a</SP> and R<SP>b</SP> are independently hydrogen or alkyl and R<SP>c</SP> is hydrogen, alkyl or a good leaving group, e.g. acyl or sulphonyl; any alkyl or alkylcontaining group in the above defined substituents, unless otherwise stated, having no more than 8 carbons, are prepared by reacting a compound of Formula IX in the presence of a strong base with an aldehyde of formula RCHO, and optionally subjecting a resulting compound to one or more of the following reactions: (a) when R<SP>c</SP> is H, converting Re to a good leaving group by reaction with the acid chloride of the good leaving group, (b) when R<SP>c</SP> is a good leaving group, reacting the compound with a strong base to produce the corresponding compound in which X is CR<SP>a</SP>=CH<SP>b</SP>, and (c) converting the substituent R to another substituent within the values of R. 2-Methyl-5-nitro-1-vinylimidazole is prepared by reacting 2 - methy 1- 5 - nitro - imidazole - 1- ethanol with p-toluene-sulphonyl chloride and treating the resulting tosylate with sodium in ethanol. Pharmaceutical compositions having antiparasitic activity comprise a compound of Formula I and a pharmaceutically acceptable carrier.
Patent GB-268047-A (GB)
Title: Improvements in or relating to galvanic batteries
IPC: H01M10/36
Filed: 1925-12-28
Abstract: 268,047. Mieres, C. de. Dec. 28, 1925. Electrodes; electrolytes.-The positive electrode of secondary batteries is of graphite, artificial carbon or other conductor unattackable by chlorine or bromine covered with finely pulverized silver and the electrolyte comprises an aqueous solution of zinc chloride mixed with one or more other zinc halides such as the bromide or iodide. The negative electrode is of zinc and, to increase the conductivity of the electrolyte and improve the zinc deposit, a small amount of hydrochloric acid is added to the electrolyte and the negative electrode is made longer and wider than the positive electrode. Spongy silver may be applied to the graphite &c., or the silver may be initially in the form of threads, bars, powder, or chemical or electrical deposit and converted to spongy silver and united with the graphite during the first charging operation and by short-circuiting the battery after charging. On charging, when the electrolyte comprises zinc chloride and bromide,. the zinc bromide is first decomposed forming silver bromide and free bromine, the electromotive force being one volt at this stage, the zinc chloride is then decomposed forming silver chloride and bromine with the silver bromide, the electromotive force being two volts,. and, when all the silver bromide is decomposed, free chlorine reacts with the bromine giving an electromotive force of 2.2 volts, charging being discontinued when chlorine bubbles appear at the positive electrode. These reactions are reversed on discharge, a voltage of 2.2 volts being maintained for a considerable part of the discharge. The spongy silver occludes and absorbs the free halogens, part of the halogens not remaining at the positive electrode and proceeding thereto as the discharge proceeds.
Patent GB-1477094-A (GB)
Title: Internal combustion engine carburetters
IPC: F02M7/20
Filed: 1975-08-06
Abstract: 1477094 Spray carburetters GENERAL MOTORS CORP 6 Aug 1975 [21 Aug 1974] 32859/75 Heading F1H Fuel jets 32, 46 between a fuel bowl 34 and a Venturi 18 are controlled by respective metering rods 36, 48 connected to spring-biased pistons 38, 50 subject through passages 56, 57 to the vacuum downstream of the throttle valve 22. Under certain low vacuum conditions the restriction of the jets 32, 46 is reduced to provide a richer mixture than under higher vacuum conditions. The pistons 38 and 50 may be moved against the spring-bias at vacuums above about 3 to 5 in Hg and above about 6 to 9 in Hg respectively to provide air/fuel ratios of 16/1, 14/1 and 13/1 respectively when both pistons 38 and 50 are moved to the fullest extent under vacuum, when only the piston 38 is so moved and when both are moved to the fullest extent by the springs 40, 52. The Specification provides other examples of vacuums and air/fuel ratios. A valve 64 may be disposed in the passage 58 or passages 56 and 58 and controlled in response to a voltage signal inversely proportional to the oxygen concentration in the exhaust gas of an engine having an exhaust gas reducing and oxidizing converter. The valve 64 closes the passage to permit the pressure in the cylinder (62) to increase by air leakage past the piston 50 or open an air bleed to the passage to provide a richer mixture as the sensor voltage decreases. A bellows 70 responsive to changes in atmospheric pressure controls a fuel metering needle 68 in a further jet 66. Fuel-flow to the Venturis 18 of a pair of primary induction passages, Fig. 2 (not shown), associated with respective secondary induction passages (78), may be via respective jets 32 and common jets 46 and 66.
Patent GB-410757-A (GB)
Title: Improvements in and relating to regulating transformers
IPC: H02M5/12
Filed: 1932-11-21
Abstract: 410,757. Transformers. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Elektricitats-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) Nov. 21, 1932, No. 32872. Convention date, Nov. 21, 1931. Addition to 407,411. [Class 38 (ii).] Relates to a voltage regulating arrangement comprising a control winding S3 on a movable core associated with a pair of choke coils S1, S2 as described in the parent Specification, and consists in arranging the control winding S3 in two auto-connected sections connected directly across the voltage EO to be regulated, and connecting the choke coils S1, S2 across that section of the control winding the voltage across which corresponds to the difference Ep between the upper and lower limits of the regulated voltage. Figs. 2<a> and 2<c> show respectively the positions of the windings for the lower limit of regulated voltage (Ex=Eo-Ep) and for the upper limit of regulated voltage (Ex=Eo).
Patent GB-248711-A (GB)
Title: Improvements in or relating to furnaces for roasting sulphide and other ores
IPC: F27B3/18
Filed: 1925-12-31
Abstract: 248,711. Bracq, E. March 9, 1925, [Convention date]. Roasting-jurnaces; charges, agitating. - In a roasting- furnace having superposed hearths, or a continuous hearth of helical form, the mechanism for imparting a combined horizontal and vertical movement to the rabbles is contained within a large movable central chamber, which is easy of access and where the mechanism .can be kept cool. As shown in connection with a helical hearth furnace the rabble arms 41 are carried by a central shaft 39 and are counterbalanced by a weight 8 suspended from a cable passing over pulleys 6. In line with the shaft is a pillar 15 screwed externally to the pitch of the hearth, and the nut 17 working in conjunction therewith is bolted to a platform 9, which can be rotated in -either direction by a bevel wheel 19 and teeth 18 formed on a helical surface. On the platform 9 are mounted a framework 10 carrying the inner closures for the hearth chambers, and mechanism for giving the rabble arms a combined up and down and oscillatory movement, which is superposed on the continuous helical movement produced by the nut 17. This mechanism comprises a motor 33 which drives continuously a shaft 24 carrying an eccentric 27 and a crank - disc. The eccentric imparts a vertical reciprocation to the shaft 39 through the lever 34 and collar 38, while the crank disc oscillates a sleeve 43 feathered on the shaft. During the descending helical movement of the rabble arms, the up and down movement of the shaft 39 from the eccentric 27 is stopped by the withdrawal of a pin 48 on the eccentric arm 28 into a slot 61 on the lever 34, in which it can oscillate freely. The withdrawal is effected by the contact, with a fixed stop 60, of an arm 59 on a shaft 56. Rotation of this shaft throws over a weighted lever 55 and moves the pin 48 through the links 49, 52 and lever 50. The platform 9 and the mechanism carried thereon are counterbalanced by weights 66. The rabble arms 41 are bolted to slides 77, which are engaged with guide portions 78 on the holder 40, and are cooled by air, which may be supplied through the pillar 15 and the hollow holders 40. The closure members for the hearth consist of metal sleeves 69 carried by ring members 11 on the framework 10. The screens are covered on one side with sheet asbestos and on the other with insulating material 72, and may be formed with air supply and inspection apertures. Specification 20108/12 is referred to.
Patent GB-605005-A (GB)
Title: Improvements in furnaces
IPC: F23L9/00
Filed: 1945-12-11
Abstract: 605,005. Air supply to furnaces. AKTIEBOLAGET GOTAVERKEN. Dec. 11, 1945, No. 33519: Convention date, July 3, 1943. [Class 51(i)] In furnaces of the type in which solid fuel falls onto an inclined grate from an opening provided in the side wall of the combustion chamber, openings 26 for secondary air are directed tangentially of an imaginary cylinder to provide a rotary whirl of-gases and an outlet 34 for combustion gases is provided in the end wall of the combustion chamber 15, which is built up of a number of C-shaped cast sections 14 connected by nipples 16 to form a closed water circulating system. The grate 20 is located at a tangent to said imaginary cylinder of whirling gases. A motor driven fan 4 supplies air to a chamber 22 delivering secondary air via a passage 23 to the space 25 and primary air via a passage 24 to the space 27 below the grate 21, which is supplied with fuel from the hopper 2 through an opening 17 controlled by adjustable plates 19. Dampers in the air passages 23 and 24 may be controlled by hand wheels on the furnace front, and the fan motor is started and stopped by a thermostat responsive to the temperature of the water in the furnace.
Patent GB-913352-A (GB)
Title: Electric terminal
IPC: H02K15/095
Filed: 1959-04-01
Abstract: 913,352. Direct connections between conductors. ELECTROLUX Ltd. April 1, 1959 [April 1, 1958], No. 33626/60. Divided out of 913,351. Class 38 (1). [Also in Group XXII] A method of anchoring a wire to a terminal comprises winding an end portion of the wire around a notch in a hollow terminal post, forming the end of the wire as a flattened loop, supporting the loop at least in part within the post and enveloping the loop with an insulating sleeve. A hollow tubular post 34 is provided at each of a number of positions on an insulating element 26, described in Specification 913,351, between a core 20 and a coil 24 of a stator, e.g. of an electric motor. Each post 34 accommodates a terminal part of the coil 24. In one embodiment, Fig. 4, the end of the coil wire is wound, at 64, around a notched lower section 62 of the terminal post 34 and is then led up through the terminal and is doubled over to form a loop 68 with the end of the wire extending inside the terminal, which is formed with a longitudinal slot 66. An insulating sleeve 48 is then slid over the terminal and an eyelet is welded to the loop 68. In another embodiment, Fig. 8, wire after being wound round the notched section of a terminal 34a is bent over to form a loop 68a and the end 30c is inserted in a blind bore in the terminal.
Patent GB-1298403-A (GB)
Title: Light-sensitive color photographic silver halide element
IPC: G03C1/34
Filed: 1970-07-10
Abstract: 1298403 Light-sensitive silver halide photographic material KONISHIROKU PHOTO INDUSTRY CO Ltd 10 July 1970 [10 July 1969] 33743/70 Heading G2C A light-sensitive silver halide photographic material contains (a) at least one compound of the formula: wherein R 1 , and each of R 2  and R 3  independently, represents H, or an alkyl, alkenyl, aryl or aralkyl group, and (b) at least one hydroquinone of the formula: wherein R 4  represents a straight or branched chain alkyl group having 1 to 18 carbon atoms, and R 5 , which is in the 5- or 6-position, represents H or a straight or branched chain alkyl group having 1 to 18 carbon atoms. Many examples are given of the above compounds. The components (a) and (b) may be present in the same or adjacent layers, the layers being selected from a silver halide emulsion, inter, sub, filter and protective layer. The material may contain a chemical and/or optical sensitizer or a colour coupler. Fog formed during colour development may be decreased or decrease in speed occurring after colour development may be largely prevented by the use of components (a) and (b) in the material.