baber/WOPTO huggingface dataset:
Patent GB-882844-A (GB)
Title: Glucuronic acid derivatives useful as intermediates in the production of antibacterials, and the production of said derivatives
IPC: C07H15/12
Filed: 1957-12-04
Abstract: The invention comprises 1-thioureido-2,3,4-triacetyl-D -glucuronic acid methyl ester and 1-thioureido-D -glucuronamide.  The first compound is prepared by reacting 1-isothiocyano-2,3,4-triacetyl-D -glucuronic acid methyl ester with ammonia in the presence of a solvent which is able to absorb ammonia, dissolves the starting material at normal temperature and is weak in polarity, e.g. dioxan, benzene or xylene.  The second compound is prepared from the first compound by reacting it with ammonia in the presence of a solvent which is strong in polarity, e.g. methanol.
Patent GB-1049372-A (GB)
Title: Improvements relating to magnetic filters
Inventor: RUSSELL DAVID HAMMOND
IPC: B03C1/029
Filed: 1961-08-29
Abstract: 1,049,372. Magnetic filters. AUTO-KLEAN STRAINERS Ltd. Nov. 29, 1962 [Aug. 29, 1961], No. 31120/61. Heading B2J. A liquid filter assembly has a magnetic filter unit in which cages 3, 4 of magnetizable elements are disposed in the flux path of a permanent magnet 2, and means 17, 18 for moving at least the cages to a cleaning section 15. The assembly comprises a circuit formed by a filtering section 13 which is provided with an inlet 8 and an outlet 9, the cleaning section 15 which is provided with air or water jets 23 and a waste pipe 24, and passageways 14, 16. The circuit is full of cages, the positions of which are indicated by dotted lines 19. The cages are arranged to move continuously through castellations formed in the polepieces of several juxtaposed magnets of square cross-section; alternatively the magnets may be cylindrical and provided with castellated polepieces. Circulation of the cages is effected by push-rods 17, 18 and endless belts arranged in the passageways 14, 16 so as to present cleaned cages to the magnet and used cages to the cleaning jets. A modification, Fig. 3 (not shown), illustrates two filtering sections joined by passageways containing cleaning jets. In another modification, magnets and associated cages are circulated as a whole and the passages openable to permit the cages or magnets to be removed and the cages cleaned or replaced.
Patent GB-1077583-A (GB)
Title: Improvements relating to gas turbines with pulsating gas flows
IPC: F01D9/04
Filed: 1964-08-04
Abstract: 1, 077, 583. Exhaust-driven turbochargers for I. C. engines. GARRETT CORPORATION. Aug. 4, 1964 [Aug. 5, 1963; Sept. 6, 1963], No.31157/64. Headings F1B and F1G. Fluid from separate pulsating sources is fed through separate passages to a common turbine rotor, which passages lead to turbine inlets which extend around the whole circumference of the turbine rotor. The exhaust gases from two groups of cylinders are fed through separate passages 17, 18, to separate inlet scrolls 27, Fig. 4, both of which extend right round the circumference of the rotor 21 of a turbine driving an air compressor 12. In a modification the passages 17, 18 lead into their respective scrolls at diametrically opposite points and in Fig. 8 (not shown) the passages lead to radially separated scrolls 41.
Patent GB-1065735-A (GB)
Title: Production of 2-hydroxy-2,3-dihydrocitral
Inventor: SCHNEIDER KURT
IPC: C07C47/263
Filed: 1964-08-04
Abstract: 2 - Hydroxy - 2,3 - dihydrocitral is made by reacting a primary or secondary saturated alcohol with 2,2,6 - trimethyl - 6 - ethinyltetrahydropyran at 100-250 DEG  C. in the presence of a vinylation catalyst to give the vinyl ether <FORM:1065735/C2/1> where R is the residue of the alcohol, which is subsequently cleared in an aqueous-acid medium, containing at least a stoichiometric amount of water, at 0-160 DEG  C. to give the required compound.  The vinylation step is effected in the conventional manner.  Preferred alcohols are the mono- or di-hydric aliphatic alcohols having 1-6 carbon atoms which optionally contain an ether linkage. Suitable acids for the hydrolysis step are phosphoric acid, HCl, HI, H2SO4, p-toluene sulphonic acid, strongly acid ion-exchange resins and acid activated bleaching earths and Friedel-Craft catalysts, such as zinc, aluminium and titanium chlorides and boron trifluoride. 2-Hydroxy-2,3-dihydrocitral may be converted to 2-hydroxy-2,3-dihydrocitronellal by selective hydrogenation in the presence of palladium.  Examples are provided.
Patent GB-955434-A (GB)
Title: Pusher-type centrifuge with washing device for the centrifuged material
IPC: B04B3/02
Filed: 1961-08-30
Abstract: 955,434. Centrifugal separators. KRUPPDOLBERG G.m.b.H. Aug. 30, 1961 [Aug. 31, 1960], No. 31230/61. Heading B1D. In a pusher-type centrifuge, Fig. 1, with a washing device 10 for the centrifuged material, the wall of the centrifugal drum I consists of an axially fixed first cylindrical filter portion 2, a diverging solid-walled portion 3, to which the washing liquid is supplied, and a wider cylindrical filter portion 4, from which dry filter cake is dropped into a collecting chamber 11. An inlet pipe 5 for material to be centrifuged leads into an accelerating funnel 6, which is connected to a reciprocal pusher plate 7 by stays and rotates with the pusher plate and the centrifugal drum, the pusher plate being sealed by resilient sealing rings 8 which move the filter cake along to the portion 3. In another embodiment, Fig. 2 (not shown), the diverging portion is secured to and reciprocated with the pusher plate, and, being fitted with similar seals, acts as a pusher ring on the wider filter portion for pre-filt substances which are more fluid and unable to transmit the thrust necessary for discharge of the filter cake. In another embodiment, Fig. 3, the diverging-portion 16 is again reciprocable, being secured by stays 17 to the accelerating funnel 18 which is similarly connected to the reciprocated pusher plate 14 ; a washing drum 20, which may overflow through a bore 22 in each stay 17, is connected to, and rotates with, the accelerating funnel. In a further embodiment, Fig. 4 (not shown), the pusher plate and wider filter portion are axially fixed and the diverging portion and the first filter portion are connected together, and reciprocated axially thereacross.
Patent GB-1384350-A (GB)
Title: Apparatus for preparing ashes in a crematorium
IPC: B02C17/18
Filed: 1973-06-29
Abstract: 1384350 Ball mills TABO INDUSTRIUGNAR AB 29 June 1973 31232/73 Heading B2A Human ashes are comminuted in a ball mill. The ashpan 12 Fig. 2, the cremation furnace is open at its upper end and is separated from the interior of a mill casing 2, when detachably inserted therein by a perforated cover 15 Fig. 4 or shell 11 Fig. 2: The shell retaining grinding bodies 13. Thus when the ashpan is rotated the ashes are pulverized and pass through the perforations into the casing. They are thence discharged into an urn 5. In the first embodiment Fig. 2, the ashpan is placed within a drum and in the second embodiment, Fig. 4, the perforated cover 15 forms with the ashpan the drum or ball mill chamber. In the second embodiment grinding bodies 18 are placed in the ashpan.
Patent GB-246807-A (GB)
Title: An improved method of and apparatus for evaporating and/or concentrating liquids or solutions
IPC: B01D1/28
Filed: 1925-12-10
Abstract: 246,807. Lautour, F. de. Jan. 29, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Vapours, utilizing for effecting further evaporation ; progressive evaporators.-In evaporating liquids such as brine the liquid passes from a tank 5 through a preliminary heater 1 and in succession through evaporators 8 - - 12. Each evaporator is fitted with a compressor 17 which withdraws steam from the evaporator by a pipe 22 and passes the compressed steam through a coil 32 in the evaporator. The condensate from the coils passes bv a pipe. 42 to a coil 2 in the preliminary heater. Steam may be passed through the coil 2 from a pipe 46.
Patent GB-1105774-A (GB)
Title: Mechanical seal
IPC: F16J15/36
Filed: 1965-06-25
Abstract: 1,105,774. Mechanical seals. BORG WARNER CORPORATION. 25 June, 1965 [3 June, 1965], No. 31267/67. Divided out of 1,105,773. Heading F2B. The subject matter of this Specification is identical with that described in Specification 1,105,773 but the claims are concerned with the means for securing the rotating parts of the seal to the shaft.
Patent GB-232526-A (GB)
Title: Improvements relating to change speed gearing
IPC: F16H29/18
Filed: 1924-12-30
Abstract: 232,526. Progression Soc. Anon., (Assignees of Lauba Werk Akt.-Ges.). Sept. 22, 1924, [Convention date]. Variable-speed gearing comprises rotary driving and driven elements a, d mutual eccentricity connected by a ring of blocks f<1> which are gripped at one point in their orbit between two mutually eccentric circular members a<1>, a<2>. The blocks f<1> are supported upon sliders f which move in radial slots d<1> in the driven disc d, and as they go round in their eccentric track, they move alternately faster and slower, the difference being a function of the eccentricity. In the arrangement shown in Figs. 1 and 2, the driving-member a is a belt pulley which is bodily moved at right angles to the line of belting to vary the eccentricity of the pair of rotary grip members a<1>, a<2>, and so to vary the speed ratio. The pulley a and grip members a<1>, a<2> rotate together on a non- rotary boss c which slides in a fixed guide k when moved for the purpose by control handle m. The mutual eccentricity of the grip members a<1>, a<2>, is adjusted by an eccentric pin g<1> upon a handlever g. When the members a<1>, a<2> are set concentrically, the drive is disconnected. A modification is described in which the gripping device is duplicated and is carried by a double member sldably transversely between a pair of coaxial radially-grooved driving and driven discs. The grip members are controlled simultaneously by a spindle passing through the hand-wheel controlling the speed ratio.
Patent GB-659987-A (GB)
Title: Improvements in railway brake beams
IPC: B61H13/36
Filed: 1949-12-06
Abstract: 659,987. Brake beams. OAKLEY, J. L. D. (American Steel Foundries). Dec. 6, 1949, No. 31290. [Class 103 (i)] A cast brake beam is formed with compression and tension members, 1 and 4, which preferably are of T-section, and has a brake head 8 having a substantially vertical rear wall 6 which merges with the members 1 and 4 and an outboard face merging with a guide lug 10 having top and bottom surfaces, in which are formed openings or pockets 11 spaced inwardly from the outboard end of the lug.
Patent GB-1480643-A (GB)
Title: Amidino-phenyl-ureas processes for their preparation and compositions incorporating them
IPC: A61K31/155
Filed: 1974-07-16
Abstract: 1480643 1-Amidino-3-phenyl-ureas; pharmaceutical compositions WILLIAM H RORER Inc 16 July 1974 [16 July 1973 (3)] 31370/74 Heading C2C Novel 1-amidino-3-phenyl-ureas of general formula wherein R is H or C 1-6  alkyl, R<SP>2</SP> is halogen or C 1-6  alkyl; R 4  is H, halogen, C 1-6  alkyl or alkoxy and R 6  is H, halogen, nitro, C 1-6  alkyl or haloalkyl, C 1-6  alkoxy or C 1-6  alkylsulphonyl; and acid addition salts thereof are prepared either (a) by reacting an isocyanate of general formula with guanidine or (b) reacting an aniline acid chloride of general formula with guanidine or (c) by acid hydrolysis at elevated temperature of a biguanide of general formula Amongst numerous examples 1-amidino-3-(2- methyl - 6 - chlorophenyl)urea, 1 - amidino - 3- (2 - chloro - 4 - bromo - 6 - methyl - phenyl)urea and 1 - amidino - 3 - methyl - 3 - (2,6 - dimethyl- 4-methoxyphenyl)urea are prepared. 2,6 - Dimethylphenylisocyanate is obtained by reaction of 2,6-dimethylaniline and phosgene. 2 - Chloro - 6,N - dimethylaniline acid chloride is prepared by reaction of 2-chloro-6,N-dimethylaniline and phosgene. Pharmaceutical compositions for treatment of hypertensive disorders, gastrointestinal hyperacidity or ulceration and spasms contain at least one phenyl amidino urea of Formula I or non-toxic acid addition salt thereof, in association with a suitable pharmaceutical vehicle.
Patent GB-235248-A (GB)
Title: Improvements in or relating to the preparation of rubber nuts for transportation
IPC: A23N5/00
Filed: 1923-12-13
Abstract: 235,248. MacIlwaine, A. W. Dec. 13, 1923. Preserving vegetable substances.-Oil-bearing nuts, such as those produced by Hevea Braziliensis, are prepared for transport and storage by breaking the shells and then compressing the nuts in built under a pressure insufficient to express any appreciable quantity of the contained oil but sufficient to form a block of greatly reduced bulk. The access of air is restricted and decomposition minimized. The nuts may be decorticated before compression and the operation may be carried out in a press such as is described in Specification 186,133, the nuts being compressed between jute sheets which are subsequently folded round the compressed block and sewn up and secured by wires, cords, or iron hooping.
Patent GB-406089-A (GB)
Title: Improvements in light reflectors for pedal cycles
IPC: B62M3/12
Filed: 1932-11-08
Abstract: 406,089. Reflectors. COCKSHUTT, J., 12, Bickerton Road, Birkdale, near Liverpool. Nov. 8, 1932, No. 31462. [Class 97 (i).] A reflex light for a cycle consists of an uncoloured reflector extending along the edge of the pedal or of the crank and having means for permanently or detachably securing it, the reflecting surface being either plane or formed with facets &c. As shown the reflector consists of a facetted strip of glass &c. 2 mounted in a channelled housing 3 having at each end a lug 5 passing between a pedal rubber 7 and the plate 8. Alternatively the reflector may be provided with flexible lugs which can be bent round the rubber 7. A similar reflector may be mounted on the crank 12. Specification 384,425 is referred to.
Patent GB-1313869-A (GB)
Title: Shift register
IPC: G11C19/28
Filed: 1970-06-30
Abstract: 1313869 Shift registers INTERNATIONAL BUSINESS MACHINES CORP 30 June 1970 [30 June 1969] 31527/70 Heading G4C [Also in Division H3] In a shift register each stage has three circuits 2, 3, 4 connected in cascade, each including a FET T 2 , T 4 , T 6  whose gate capacitance is capable of storing a charge supplied, from clock sources # 1 , # 2 , # 3 , in dependence upon the stored charge in the previous circuit. Thus # 1  charges T 4  gate capacitance through T 1  and this is discharged or not according to the information input 8 to T 2  gate. Each other circuit 3, 4 operates similarly in response to # 2  and # 3  to actuate the output 18. FET's may be used for all components, or diodes (D 1 , D 2 , D 3 , Fig. 3, not shown) may replace T 1 , T 3 , T 5 . In the latter case the clock sources may be connected only to the diodes, the sources of T 2 , T 4 , T 6  being earthed, and Schottky diodes may be used.
Patent GB-271032-A (GB)
Title: Improvements in electrical filters
IPC: H04B15/02
Filed: 1926-12-13
Abstract: 271,032. Dubilier Condenser Co. (1925), Ltd., (Assignees of Houck, H. W.). May 17, 1926, [Convention date]. Converting pulsating currents into steady continuous currents. - In means for supplying wireless apparatus with steady continuous current from light or power mains through a low-frequency filter, a high-frequency filter is also provided for preventing radio frequency oscillations picked up by the supply line from reaching the wireless apparatus. The high-frequency filter comprises an ironcored choke 5, one or more high-frequency chokes 6, 7, and shunt condensers 8<1>, 9, the point between the two condensers 8<1> being connected to earth. The Specification as open to inspection under Sect. 91 (3) (a) describes also an arrangement in which the two condensers 81 are replaced by a single condenser 8, Fig. 1 (Cancelled). This subject-matter does not appear in the Specification as accepted.
Patent GB-1222415-A (GB)
Title: Photographic processing baths
Inventor: SIEG ALBERT LOUIS
IPC: G03C5/40
Filed: 1968-07-03
Abstract: 1,222,415. Etching. EASTMAN KODAK CO. 3 July, 1968 [3 July, 1967], No. 31641/68. Heading B6J. [Also in Divisions G2-G3] Photographic etch-bleach solutions for forming relief images from a gelatin layer containing a silver image, have a pH below 5 and contain (1) an oxidizing agent, (2) Cu (II) ions, and (3) inorganic anions which form an insoluble Ag salt; the concentration of each of (2) and (3) being at least 0À1 molar. Pref. solutions contain (1) 0À03-3 weight per cent of H 2 O 2 , a persulphate or a perborate; (2) 0À1-0À4 mole l<SP>-1</SP> of CuCl 2  or CuSO 4 ; (3) a chloride, bromide or iodide (which may be in the form of the Cu (II) salt); and, in addition, (4) an acid; (5) a gelatin softener (e.g. salicylic acid, citric acid, guanidine nitrate, guanidine hydrochloride and/ or urea); and (6) a glycol to improve lithographic latitude. In comparative examples there are used low concentrations of Cu (II) ions and other metal ions in place of Cu (II) ions.
Patent GB-1160159-A (GB)
Title: Improvements in or relating to Linearising Circuit Arrangements for Voltage-Sensitive Capacitance Diodes
Inventor: PARKYN JOHN MICHAEL
IPC: G06G7/26
Filed: 1967-07-10
Abstract: 1,160,159. Non-linear circuits. MARCONI INSTRUMENTS Ltd. 5 April, 1968 [10 July, 1967], No. 31685/67. Heading G4G. [Also in Division H3] In a non-linear circuit compensating for the non-linear capacitance/voltage characteristics of a varactor diode, transistors 1, 2 in longtailed pair receive input voltage at the base of 1 from terminal 6 and feedback voltage at the base of 2 from the slider of potentiometer P to energize inverting transistor 4 coupled to the bases of phase-splitting transistors 3, 5 having corresponding fixed resistor legs 16, 20 and respective non-linear and fixed legs 15, 19. The non-linear leg comprises a resistance chain between supply and earth tapped over plural series resistors and diodes in common to the emitter of transistor 3. The output voltage across collector and emitter of transistor 5 frequency modulates the varactor tuned circuit of an oscillator, while the potentiometer is energized between collectors of transistors 3, 5 to vary the non-linearity. Plural potentiometers and oscillators are switchable to the circuit.
Patent GB-1049207-A (GB)
Title: Lubricants
IPC: C09K23/00
Filed: 1964-08-05
Abstract: Lubricants comprise a mixture of (A) polyethers with terminal hydroxyl groups which possess as chain members a plurality of -(CH2)4-O- groups and optionally other alkylene-O- groups or esters of such polyethers and mono- or polybasic carboxylic acids or ethers of such polyethers and mono or polyhydric alcohols and (B) an alkoxylation product with terminal hydroxyl groups of a C6-C20 aliphatic alcohol or esters thereof with mono- or polybasic carboxylic acids or ethers thereof with mono- or polyhydric alcohols. The mixture may include a mineral lubricating oil and a corrosion inhibitor.  Polyether (A) may be obtained from tetrahydrofuran and ethylene oxide.  Alkoxylation product (B) may be obtained from ethylene or propylene oxide.ALSO:Lubricants comprise a mixture of (A) polyethers with terminal hydroxyl groups which possess as chain members a plurality of -(CH2)4-O- groups and optionally other -alkylene-O- groups or esters thereof with mono- or polybasic carboxylic acids or ethers thereof with mono- or polyhydric alcohols and (B) an alkoxylation product with terminal hydroxyl groups of a C6-C20 aliphatic alcohol or esters thereof with mono- or polybasic acids or ethers thereof with mono- or polyhydric alcohols. Polyether (A) may be obtained from tetrahydrofuran and ethylene oxide. Alkoxylation product (B) may be obtained from ethylene or propylene oxide.
Patent GB-638445-A (GB)
Title: Sheet registering mechanism
IPC: B65H9/06
Filed: 1947-12-02
Abstract: 638,445. Feeding sheets. LANIGAN & CROSS, Inc. Dec. 2, 1947, No. 31837. Convention date, Aug. 14, 1940. [Class 100 (i)] A sheet-registering device for controlling the advance of sheets as they approach front stops 86 is constructed with a pair of reciprocating jaws disposed on opposite sides of the path of the advancing sheet, the jaws being driven so as to have the same speed as the sheet when the sheet passes between the jaws and to be subsequently decelerated as the jaws move to the front stops. The jaws are reciprocated by oscillating arms 36 actuated from a cam 26 which oscillates an arm 32 connected by a link 34 to an arm 36. The lower jaw 78 is formed on a reciprocating blade 64, to which is pivoted at 68 a blade 70 having a hook 72 adapted to rest on a pin 60 carried by an adjustable pivoted arm 58. The sheets are advanced over conveyer slats 14 supported by a feed table 10, and as the front edge of a sheet passes between the open jaws 76, 78 the blade 64 is accelerated as the cam roller 30 moves from position A to position B. The jaws can deal with sheets which are slightly in advance or arrear of correct time, and when the sheet is gripped, the hook 72 is no longer held raised by the pin 60 and the grippers close and then are decelerated as the roller 30 passes to position C of the cam. Near the front stops the blade 64 is supported by a tongue 84 projecting from the feed board 10. As the sheet is being registered by the stops 86 the nose 82 of the blade 64 passes between the arms 86 of the stops and the jaws move finally at a slow constant speed to draw the sheet against the guides. At the end of the movement a rod 102 lifts the jaws when a nut 106 on it is brought into engagement with a pivoted guide 100 through which it can slide. In a modification, Fig. 7, the lower jaw is formed as a spring jaw 78b connected by a screw 78c to the blade 64a. During final registration the jaw 78 is received in a recess 92 formed in a plate 90 secured to the feed board 10.
Patent GB-1416080-A (GB)
Title: Mould assembly for manufacturing hard foamed plastics  articles
IPC: B29C33/40
Filed: 1973-07-04
Abstract: 1416080 Moulding foamed plastics articles POLAR-GRAFIK GmbH 4 July 1973 [7 July 1972] 31858/73 Heading B5A A mould assembly for foamed plastics, articles includes a box 1, 2 with mould parts 11 12 therein, a resilient lining 5 between the box and mould parts, and article ejector means 19 associated with each mould part. The ejector means comprises a spring-loaded valve 21 with a seat 22, opened by pressure air fed through a duct 25. Such air flow vibrates the valve head. Liquid plastics material is supplied by a device 20 including an aperture 7 in a plate 6 opened or closed by a plate 8. The mould parts are each composed of various resin layers, some of which are reinforced with aluminium shot or glass chips.