baber/WOPTO huggingface dataset:
Patent GB-934701-A (GB)
Title: Improvements in or relating to processes for the production of substituted corticosteroids
IPC: C07J75/00
Filed: 1959-12-08
Abstract: The invention comprises: (a) 9a -bromoand 9a -fluoro-11b ,17a -dihydroxy-16a -methylpregna-1,4-diene-3, 20-dione, and 9a -fluoro17a - hydroxy- 16a - methylpregna- 1,4- diene3,11, 20-trione; (b) a process, in which compounds (a) are intermediates, for the preparation of compounds of the general formula <FORM:0934701/IV(a)/1> (wherein R represents a hydroxy group or a ketonic oxygen atom) which comprises the following steps: (i) oxidising 3a ,17a -dihydroxy-16a -methylpregnane-11,20-dione to the corresponding 3,11,20-trione, (ii) converting this into 17a -hydroxy-16a -methylpregna-1,4-diene-3,11,20-trione, (iii) protecting the 3- and 20-ketone groups, reducing the 11-ketone group and liberating the 3- and 20-ketone groups, to form 11b ,17a -dihydroxy-16a -methylpregna-1,4-diene-3,20-dione, (iv) introducing a fluorine substitutent at the 9-position, (v) if desired oxidizing the 11b -hydroxy group to a ketone group, and finally (vi) introducing a hydroxy group at the 21-position of the product of (iv) or (v) by microbiological fermentation; and (c) the combination of (a) with the preparation of the starting material by reacting 3a -acetoxypregn16-ene-11,20-dione with methyl magnesium iodide, introducing a hydroxy substituent at the 17-position via the 17,20-epoxy derivative and saponifying the product.  The first oxidation step is preferably effected with chromic acid, the formation of the 1,4-pregnadiene by bromination, e.g. with bromine followed by dehydrobromination, e.g. with a lithium halide/lithium couple, the 3- and 20-keto group protection with semicarbazide, the 11-keto group reduction with an alkali metal borohydride, the introduction of a 9-fluoro substituent by treating the 11-hydroxy compound successively with thionyl chloride, N-bromosuccimide and hydrogen fluoride, the second oxidation step with chromic acid or N-bromosuccimide and hydroxylation in 21-position by means of Colletotrichum Lindemuthianium.  Specifications 807,203, 832,244, 934,710 and 934,711 are referred to.
Patent GB-1118763-A (GB)
Title: Marking devices
IPC: B43K8/02
Filed: 1965-10-01
Abstract: 1,118,763. Felt nib pens. SANFORD RESEARCH CO. 1 Oct., 1965 [2 Oct., 1964], No. 41798/65. Heading A4K. In a felt nib pen, the converging extremity 28 of the barrel portion 30 terminates at an annular junction with an open ended tubular element 46, 48 which supports and houses the wick like element 36. Teeth at the inner extremity of the tubular element 28 prevent axial movement of the wick 36. The wick 36 may be of rectangular cross-section, thereby defining air passages between the sides thereof and the inner surface of the tubular element 46, 48. Alternatively, the wick 36 may have a circular cross-section, whereupon the inner surface of the tubular element 46, 48 is provided with longitudinal grooves. A cap (14, Fig. 2) has an inner tubular element (76) extending axially from the closed end thereof, which element closely surrounds the tubular element 46 to form an air tight seal for the wick 36 when the cap is in place.
Patent GB-1202247-A (GB)
Title: Dry-shaving apparatus
IPC: B26B19/04
Filed: 1967-09-15
Abstract: 1,202,247. Dry shavers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 15 Sept., 1967 [20 Sept., 1966], No. 42096/67. Heading B4B. In a dry shaver having a toroidal shaving head 18, Fig. 5, the inner edge of the shear plate 8 is fitted in a disc 9 which is connected only to the shear plate. The disc 9 is composed of three parts, i.e. a ring 10, a disc 11 and a filler mass 12. The ring 10 and disc 11 may be made of metal or of a synthetic material whilst the mass 12 may consist of an epoxy resin. The outer edge of the shear plate is fitted in a ring 14 which is composed of a ring 15, a ring 16 and a filter mass 17. In a dry shaver having a double cylindrical shaving head, Fig. 7, the inner edges of the shear plates are fitted in a strip 20 which is solely connected to the shear plates. The outer edges of the shear plates are fitted in a frame 21. The strip 20 and the frame 21 each consist wholly or in part of a synthetic material.
Patent GB-1116067-A (GB)
Title: Process for the preparation of l-ª-methyl-ªß-(3,4-dihydroxyphenyl)-alanine
IPC: C07D263/42
Filed: 1965-10-05
Abstract: L - a  - methyl - b  - (3,4 - dihydroxyphenyl) alanine is prepared by reacting 2-phenyl-4-methyl - 5 - oxazolinone in the form of a metal salt or in the presence of a basic condensing agent for forming such a salt with a reactive ester of veratryl alcohol to form 2-phenyl - 4 - veratryl - 4 - methyl - 5 - oxazolinone, partially hydrolysing this to N-benzoyl-a -methyl - b  - (3,4 - dimethoxyphenyl)alanine, resolving this to separate the L-enantiomer thereof, and hydrolysing this.  Resolution may be effected, for example, with brucine, quinine, quinidine or codeine.  Para-toluenesulphonic acid veratryl ester is prepared from sodium p-toluenesulphonate and veratryl chloride or p-toluene sulphonyl chloride and veratryl alcohol.
Patent GB-1001976-A (GB)
Title: Improvements in or relating to catalysts
IPC: B01J23/78
Filed: 1961-11-24
Abstract: A catalyst is made by intimately associating Al2O3 and/or SiO2-Al2O3 with one or more oxides of Group II metals, calcining at at least 900 DEG C. but below fusion temperature so as to cause interaction of the associated catalyst constituents, and depositing one or more metals or oxides of Group VIII thereon.  Ca is specified from Group II and Ni from Group VIII.
Patent GB-1334240-A (GB)
Title: Adsorbent composition
IPC: B01J20/10
Filed: 1970-09-03
Abstract: 1334240 Absorbent BAYER AG 3 Sept 1970 [4 Sept 1969] 42192/70 Heading B1L A granulated homogeneous mixture of a zeolite with pore width up to 5Š and a wide pored absorbent optionally with a binder is used for the simultaneous absorption of water and solvent vapours.
Patent GB-1199117-A (GB)
Title: Carburetter
IPC: F02M1/00
Filed: 1968-09-05
Abstract: 1,199,117. Spray carburetters. FICHTEL & SACHS A.G. Sept. 5, 1968 [Sept. 9, 1967], No. 42200/68. Heading F1B. A single control member 54 is operable to control a throttle valve 30, a choke valve 34, a shut-off valve 22 between the fuel supply conduit 20 and the float chamber 14, and a switch 82 for earthing the ignition system of the engine on which the carburetter is mounted. The float chamber 14 is connected to the induction duct 12 between the choke and throttle valves by a passage 26. The control member 54 is connected to the choke valve shaft 36 and an abutment 56 on the valve 34 may engage a rod 46 to depress the float 16. The edge 58 of the choke valve 34 may be moved into engagement with a leaf spring 60 which engages a wire link (66), Fig. 5 (not shown), attached to the operating arm 42 of the throttle valve 30, to move the throttle valve to its idling position. The arm 42 is normally positioned by a throttle linkage connected to an automatic speed governor. The closure member 72 of the shut-off valve 22 and a contact 78 of the earthing switch 82 are mounted on the choke valve shaft 36 and shutoff the fuel supply and earth the ignition when the shaft is rotated beyond the position in which the throttle valve is set as its idling position. The control knob 54 has an arrow (84), Fig. 6 (not shown) which co-operates with marks on an outer casing (18) of the carburetter indicating the various positions of the choke valve shaft 36.
Patent GB-1284665-A (GB)
Title: Method for purifying gases
Inventor: MERRILL EDWARD WILSON
IPC: B01D53/72
Filed: 1970-09-04
Abstract: 1284665 Removing hydrocarbon contaminants from gases E W MERRILL 4 Sept 1970 [10 Sept 1969] 42359/70 Heading B1L Organic contaminants such as hydrocarbons are removed from inorganic gases such as air by contacting the gas stream with an aerosol comprising particles having an aqueous core and an oleophilic surface, e.g. of DL-dipalmitoyl-z-lecithin. Preferably the gas stream is saturated with water vapour by a countercurrent scrubbing before being treated with the aerosol in such concentration that the distance between the particles is 10-100 times the mean free path of the pollutant molecules. The gas stream and entrained aerosol is then passed through a dwell chamber in a time of about 1 minute, the emerging stream being passed to a separator. The emerging gas from the separator may be dried before use, while the aerosol particles recovered may be recycled.
Patent GB-1477464-A (GB)
Title: Paint compositions and method of their production
IPC: C09D7/62
Filed: 1973-09-10
Abstract: 1477464 Resinous paint compositions IMPERIAL CHEMICAL INDUSTRIES Ltd 12 Aug 1974 [10 Sept 1973] 42430/73 Addition to 1370914 Heading C3R The method of the parent Specification is modified by an additional step of incorporating 1-10% wt. based on the total resin content, of a compound which is soluble in the solution of base resin in water-immiscible liquid, and which in water has detergent properties. The compound may have the chemical structure of the auxiliary resin defined in the parent Specification, or it may a non-ionic or anionic surfactant.
Patent GB-954898-A (GB)
Title: Device for controlling the electromotors of change speed mechanisms used in machines, especially in machine tools
IPC: G05B19/04
Filed: 1960-12-09
Abstract: 954,898. Change-speed control. ZAVODY PRESNEHO STROJIRENSTVI GOTTWALDOV NARODNI PODNIK. Dec. 9, 1960 [Dec. 17, 1959], No. 42621/60. Addition to 954,897. Heading F2D. [Also in Division H2] In a machine tool, e.g. a turret lathe, having change-speed gears and driven by an electric motor controlled as described in the parent Specification, the gears are moved by doublethrow electromagnet 31 either in accordance with a programme set on a controller (Fig. 3), or in response to pre-selector switches. As shown, a change-over switch 24 is set so that either contacts 25 or 25<SP>1</SP> in the programme controller initiate the gear change, but by opening 23, 23<SP>1</SP> and closing 28, 28<SP>1</SP> a gear change, pre-selected by switch 29 or 29<SP>1</SP>, takes place when a button 30 is pressed. In either case a circuit is first established through the appropriate half winding 20 or 20<SP>1</SP> of the electromagnet and through windings 26 and 27 of a relay, but the current is as yet too weak to operate the electromagnet. This current however, is sufficient to operate the relay which carries contacts in the motor control circuit so that the motor is brought to rest, and then caused to inch, as described in the parent Specification. When the motor has stopped, contacts 11e are closed to short-circuit part 27 of the relay winding, so increasing the current and causing the electromagnet to effect the gear change by sliding the fork 33 to the left or right. The programme controller comprises segments 38, paired axially on a drum to hold open the contacts 25, 25<SP>1</SP>. Each pair may be separated by the width of one segment, when both contacts will be held open, but either segment (but not both) may be slid to the central position so allowing its associated contacts to close. Hence, it is impossible for both 25 and 25<SP>1</SP> to be closed together. The drum may be rotated in conjunction with the turret of the lathe; as shown, six positions, each corresponding to a gear setting, are available. There may be any number of pairs of segments spaced along the drum, each pair controlling a separate gear-change mechanism.
Patent GB-1259949-A (GB)
Title: Novel epoxy esters
IPC: C07C29/17
Filed: 1968-12-12
Abstract: 1,259,949. Epoxy acetoacetates. F. HOFFMANN-LA ROCHE & CO. A.G. 12 Dec., 1968 [18 Dec., 1967], No. 42883/69. Divided out of 1,259,947. Heading C2C. Novel epoxy esters of the formula wherein R and R 1  are C 1-6  alkyl groups, are prepared by epoxidation of the corresponding unsaturated compound. Epoxidation proceeds without affecting the double bond at 1,2-position and preferred reagents are percarboxylic acids and H 2 O 2 . Examples relate to the preparation of 3,7 - dimethyl - 6,7 - epoxy - 1 - nonen - 3 - yl acetoacetate, 3,7 - dimethyl - 6,7 - epoxy - 1- octen-3-yl acetoacetate and 3-ethyl-7-methyl- 6,7-epoxy-1-nonen-3-yl acetoacetate.
Patent GB-1070599-A (GB)
Title: A crank drive between a prime mover and a working machine,particularly a hermetically sealed refrigerating machine
Inventor: STOCKEL HENRY
IPC: F04B27/04
Filed: 1965-10-09
Abstract: 1,070,599. Linkwork. DKK SGHARFENSTEIN VEB. Oct. 9, 1965, No. 42930/65. Heading F2K. A drive between a rotary shaft 1 and a reciprocable plunger 5 comprises a shaped magnetic member 3 mounted on a crank-pin 2 and engaging a channel-shaped arcuate ferrometallic member 4 secured to the plunger 5. The arrangement is such that the plunger 5 is pushed in one direction by the crank-pin 2 and pulled in the other direction by the magnetic attraction between the magnetic mamber and the segment. In a modification, a profiled magnet is attached to the plunger and a ferromagnetic segment is movably mounted on the crank-pin.
Patent GB-1155836-A (GB)
Title: Improvements in and relating to Taps For Controlling Fluid Flow
Inventor: LUCKING ANTHONY JAMES
IPC: F16K3/24
Filed: 1965-10-11
Abstract: 1,155,836. Valves. WADDINGTON & DUVAL (HOLDINGS) Ltd. 11 Oct., 1966 [11 Oct., 1965], No. 43085/65. Heading F2V. A tap 10 for a can 17, drum or the like comprises a rigid hollow plunger 12 slidable within a resilient sealing gland 14 arranged to fit into a hole in the can or drum, the gland being of material which is resistant to the liquid to be dispensed, and an inner plunger 16 slidable within the hollow plunger, the plungers being arranged to be able to lie substantially flush with the outer surface of the can or drum during transit, the hollow plunger being outwardly slidable in the gland to bring the tap to a preparatory position ready for dispensing, and the inner plunger being outwardly slidable within the hollow plunger when the latter is in the preparatory position so that liquid can be dispensed through a discharge opening 42 near the outer end of the hollow plunger. The gland 14 may be of natural rubber or neoprene and is snap-fitted to the can or drum, the flange of the gland having a rearwardly directed circular lip to ensure a good seal with the drum. The plunger 12 may be of polypropylene or acrylonitrile-butadione-styrene and the plunger 16 of material similar to that used for the gland, its outer end being closed by a disc 53 provided with a loop handle 54 and secured by ribbed stems 56. Arrow-shaped projections 44 ensure correct location of the plunger 12 in the gland, and projections 58 engage a slotted rim 60 on the plunger 16 to enable the two plungers to be withdrawn from the gland simultaneously, the plunger 12 being freed for further outward movement alone by rotation relative to the plunger 16. During discharge of liquid, air enters the plunger 16 by way of an annular recess 41. In the transit position of the tap the handle 54 is compressed to a flattened position by a detachable cover.
Patent GB-945948-A (GB)
Title: Improvements in hydraulically actuated disc brakes
Inventor: DAVIS JOHN WALTER
IPC: F16D65/54
Filed: 1959-12-18
Abstract: 945,948. Disc brakes. GIRLING Ltd. Dec. 19, 1960 [Dec. 18, 1959], No. 43186/59. Heading F2E. In an automatically adjustable stop and retractor mechanism for a spot type disc brake, a rod 15, provided with limited axial movement against resilient resistance formed by spring 18, extends axially with a longitudinal bore 14 in an hydraulically applied piston 10 and frictional means 25 on the rod in slidable engagement with the bore. The frictional slidable engagement comprises a sleeve 21 axially slidable on the rod 15 and backed by a nut 23 adjustably screwed on the forward end of the rod and an internally coned split collar 25 in frictional engagement with the bore 14 and adapted to engage at its rear end with a fixed stop 26 on the rod, the rear end 24 of the sleeve 21 being formed with an annular rib engaging with the coned internal surface of the collar 25. When the brake is applied, the piston moves forwardly and the frictional grip between the collar 25 and the bore 14 causes the rod to move with the piston so that the spring washer 18 is elastically deformed, and on release of the piston the rod returns and retracts the piston. When wear of the friction pad has taken place and the forward movement of the piston in the application of the brake is greater than the permitted axial movement of the rod 15 against the resilient resistance by the spring washer 18, the piston will move forwardly relative to the rod to compensate for brake pad wear. The brake friction pad (not shown) is keyed to the piston by a head 12 on the forward end of a central boss 13 of the piston.
Patent GB-1153405-A (GB)
Title: Steam Flow Equalizer
IPC: G21C15/04
Filed: 1967-09-25
Abstract: 1,153,405. Cooling reactors. UNITED STATES ATOMIC ENERGY COMMISSION. 25 Sept., 1967 [24 March, 1967], No. 43464/67. Heading G6C. In a steam superheating nuclear reactor, condensate within the fuel tubes is distributed uniformly between them to prevent the selective blockage of individual tubes. The fuel rods 14<SP>1</SP>a, 14<SP>11</SP>b are cooled by steam which flows down tube 12a and up tube 15a and is superheated. Water collects in the U-tube sections 16a, 16b, 16c and a common level, 27a, 27b, 27c is established by means of the interconnecting conduit 20. In a further embodiment, each U- tube section carries a nozzle which is seated in a receptacle supported on the base-plate 21. A flap valve in the receptacle closes when an assembly 12a, 15a is removed from the reactor core, so preventing disturbance of the equilibrium pressure in the U-sections.
Patent GB-1034074-A (GB)
Title: Improvements relating to lamp mountings
IPC: B60Q1/24
Filed: 1961-12-06
Abstract: 1,034,074. Supporting lamps. R. A. HAWKINS. Dec. 6, 1962 [Dec. 6, 1961], No. 43729/61 Heading F4R. A lamp, especially a vehicle spot-light, is carried by a member 15 mounted on a pivot-pin 17 between the forks 16 of a carrier member 12 which is housed in a tubular body 6 having a slot in the shape of a shallow V, a pin 19 on the member 15 engaging in the slot. The body 6 has an enlarged lower end 7 carried by a base 8 secured to the vehicle. The end 7 encloses a gear 23, meshing with a pinion 24 on a shaft 25 carrying a bevel gear 26 meshing with a bevel gear 27 on a shaft 28 connected by a flexible drive shaft to a hand wheel mounted in the vicinity of the driver of the vehicle. Turning of the hand wheel rotates the lamp about a vertical axis and simultaneously the pin 19 and slot cause the light beam to dip to an extent proportional to the rotation of the lamp.
Patent GB-1032889-A (GB)
Title: Picolinic acid derivatives and process for their preparation
IPC: C07D498/04
Filed: 1963-11-08
Abstract: The invention comprises 3-hydroxy picolinamides of the general formula <FORM:1032889/C2/1> wherein R1 represents a monovalent aliphatic hydrocarbon radical of at most 12 carbon atoms, which may contain carbalkoxy groups or nitrile or amino groups; a cycloaliphatic hydrocarbon radical having at most 7 carbon atoms; or a phenyl, phenylalkyl, phenoxyalkyl, phenylalkenyl radical or a furfuryl, pyridyl or pyridylalkyl radical in which the aromatic homo- or hetero-ring may be substituted by at most 3 substituents from the series of hydroxy, alkyl, alkoxy, trifluoromethyl, mercapto, nitro or amino groups or halogen atoms; or a piperidino-alkyl or piperidino-carbonyl alkyl radical of at most 12 carbon atoms, and R2 represents hydrogen or an alkyl radical of at most 4 carbon atoms, or R1 and R2, together with the adjacent nitrogen atom, form a piperidine or morpholine ring. They are prepared by reacting a 3-hydroxy-N-nitro-picolinamide of the general formula <FORM:1032889/C2/2> with an amide of the general formula <FORM:1032889/C2/3> optionally in the presence of an organic solvent.
Patent GB-1016834-A (GB)
Title: Improvements in or relating to 2.6 diesters of ascorbic acid or isoascorbic acid
IPC: A61K31/375
Filed: 1963-11-08
Abstract: The invention comprises 2,6-diesters of ascorbic acid and isoascorbic acid of formulae <FORM:1016834/C2/1> where m, n, p and q are 0 or 1, m being 1 when p is 1 and n and q are 0, and n being 1 when q is 1 and m and p are 0, and R and R1 are the same or different and are residues of aliphatic carboxylic acids containing 3 to 17 carbon atoms, or residues of aromatic carboxylic acids.  The diesters are obtained by reacting ascorbic acid, isoascorbic acid, or a 6-monoester thereof, with a carboxylic acid halide in the presence of a basic acid binding agent and using as a solvent an N,N-di-substituted amide of formula <FORM:1016834/C2/2> where R3 is a hydrogen atom or alkyl radical, and R1 and R2 are alkyl radicals or together with the N atom form a piperidyl, pyrrolidyl or morpholyl radical.  In examples, diesters are formed from ascorbic acid, isoascorbic acid, ascorbic and 6-palmitate and isoascorbic acid 6-palmitate with benzoyl chloride, palmitic acid chloride, stearic acid chloride, lauric acid chloride, n-octanoic acid chloride and n-butyric acid chloride in the presence of pyridine and dissolved in dimethyl formamide, N-formyl morpholine, N-formyl piperidine and dimethyl acetamide.
Patent GB-1283825-A (GB)
Title: Improvements in or relating to gas lasers
IPC: H01S3/097
Filed: 1970-09-18
Abstract: 1283825 Lasers SIEMENS AG 18 Sept 1970 [19 Sept 1969] 44554/70 Heading H1C A gas laser is pumped by a plurality of D.C. discharges, each discharge being between two electrodes which are connected to a D.C. supply via a control circuit, and also to a high resistance trigger circuit. In the Figure, the discharge tube has a central common anode 1 and two cathodes 2, the anode being connected to a bridge derived + 10 Kv line while each cathode may be grounded by a respective control tube R01, R02. A voltage doubler comprising C2, C3, G2 and G3 provides a -10 Kv line which is connected via a switch S and resistors R1, R2 to the two cathodes. This applies a 20 Kv trigger potential across each section of the discharge tube initially, the resistors R1 and R2 limiting the current to 100 ÁA. This is sufficient to'allow a main discharge to occur when the control tubes RO1 and R02 are operated to complete the bridge derived circuit. If continuous operation is required, the trigger supply may be discontinued using switch S once the main discharge is initiated. For pulse operation, the trigger supply may be left connected or may be controlled by the circuitry of the tubes R01, R02.
Patent GB-1433259-A (GB)
Title: Circuit arrangement for transmitting signals between electrinic
IPC: G06F3/0489
Filed: 1973-09-25
Abstract: 1433259 Data transmission OLYMPIA WERKE AG 25 Sept 1973 [19 Oct 1972] 44873/73 Heading H4P To reduce the number of connections to a circuit particularly on an I/C chip, connections from input units are made through one contact of a change over switch normally resting on the alternative contacts connected to output units. The arrangement is particularly advantageous in a data processing unit with the output connected to say a printing mechanism or display requiring a long time relative to the input. I/C process unit 4 has connections 11-n connected to electronic switches b1-bn also connected to output register 6 and input register 7. Timing generator 10 connects to computer mechanism 8 and switch control 9. Switches a1-an normally connect to output device 1. If keyboard 2 is operated, a command over line X through delay unit 3, which when contact chatter has ceased, causes reversal through control 9 of switches to connect input keyboard to register 7 for a brief period.