baber/WOPTO huggingface dataset:
Patent GB-1321799-A (GB)
Title: Derivatives of 6-aminopenicillanic acid
IPC: C07D495/10
Filed: 1972-05-22
Abstract: 1321799 6-Aminopenicillanic acid derivatives MERCK PATENT GmbH 22 May 1972 [28 May 1971] 23960/72 Heading C2A The invention comprises compounds of the Formula I wherein x is an oxygen or a sulphur atom or a sulphinyl or sulphonyl group or an NR 5  group, R 1  and R 2  are both hydrogen atoms or one of them is a carboxy group, R 3  and R 4  which can be the same or different, are hydrogen atoms or alkyl radicals containing up to four carbon atoms and R 5  is an alkyl or an alkanoyl radical containing up to four carbon atoms or a phenyl or benzyl radical, with the proviso that x can only be a sulphonyl group when at least one of the symbols R 3  and R 4  represents a hydrogen atom; and the physiologically compatible salts thereof. A process for the preparation of compounds of Formula I comprises reacting 6-aminopenicillanic acid or a salt thereof with an amino acid of Formula II or with a functional derivative thereof, whereafter a functionally changed amino group possibly present in the product obtained is liberated solvolytically or hydrogenolytically and/or the corresponding acid is liberated from a salt obtained and/or an acid obtained is converted into a physiologically compatible salt. The amino acid may be used in the form of an acid halide, an acid halide hydrohalide, an anhydride, a mixed anhydride, an activated ester or a spiro[4,5]deoanedione of the general Formula III Pharmaceutical compositions comprise a compound of Formula I in admixture with a solid, liquid or semi-liquid pharmaceutical diluent or carrier. Such compositions may be in unit dosage form, each dosage unit containing 1 to 5,000 mgm. of a compound of Formula I.
Patent GB-598213-A (GB)
Title: Improved preparation for furthering the growth of plants, bushes, trees or the like
IPC: C05G5/23
Filed: 1945-09-17
Abstract: A growth-promoting preparation for plants, bushes, trees, or the like, comprises a salt of a cellulose ether carboxylic acid, e.g. the sodium or ammonium salt of cellulose glycollic acid, and a fertilizer containing nitrogen and phosphorus and preferably also potassium. The plants may be watered with a suspension or solution of the preparation, or the dry preparation may be mixed with the soil or spread out on the ground.  The cellulose derivative may be used in the proportion of 0.5 to 5 parts for each part by weight of the fertilizer.  In an example, sodium cellulose glycollate is mixed with a fertilizer comprising potassium nitrate and ammonium phosphate.  In another example, ammonium cellulose glycollate is mixed with ammonium phosphate.ALSO:A growth-promoting preparation for plants, bushes, trees, or the like, comprises a salt of a cellulose ether carboxylic acid, e.g. the sodium or ammonium salt of cellulose glycollic acid, and a fertilizer containing nitrogen and phosphorus and preferably also potassium.  The plants may be watered with a solution or suspension of the preparation, or the dry preparation may be mixed with the soil or spread out on the ground.  The cellulose derivative may be used in the proportion of 0.5 to 5 parts by weight for each part of the fertilizer.  Tomatoes, cucumbers, pot plants or mushrooms may be treated.  In an example, sodium cellulose glycollate is mixed with a fertilizer comprising potassium nitrate and ammonium phosphate.  In another example, ammonium cellulose glycollate is mixed with ammonium phosphate.
Patent GB-775777-A (GB)
Title: Improvements in or relating to process of reducing density of propellent powder grains
IPC: C06B21/00
Filed: 1954-08-18
Abstract: 775,777. Reducing propellant density. OLIN MATHIESON CHEMICAL CORPORATION. Aug. 18, 1954 [Sept. 30, 1953], No. 24020/54. Class 9 (2). The density of hardened smokeless powder grains is reduced by suspending the grains in a two phase liquid system, a non-solvent for smokeless powder base phase containing a protective colloid and a solvent for smokeless powder base phase only partially miscible with the first phase and having non-solvent dissolved therein, until the solvent with its non- solvent solute migrates into the grains and softens them throughout but, simultaneously, maintaining by agitation of the non-solvent phase, each of the grains in suspension in the non-solvent as a discrete body of substantially the same shape as the original grain as it is softened, removing the solvent from the resultant soft bodies thereby hardening them into smokeless powder grains of substantially the same shape and weight but of greater porosity than the original grains, and thereafter separating the hardened grains from the non-solvent phase. The suspension is preferably maintained until equilibrium between the grains and the two phase system is reached. The solubility of the non-solvent in the solvent should be 3-25 weight per cent. at the temperature used, which should be not more than 20‹C below the boiling point of the solvent, e.g. 40-90‹C, and suitable solvents are ethyl acetate, methyl ethyl ketone, or isopropyl acetate. In the example, gelatinized nitrocellulose propellent grains of density 0.95 grms/cc are suspended in water and agitated at 55 ‹C, 0.1-3 per cent. of the non-solvent water of animal glue, gum arabic, or starch is added and then ethyl acetate is sprayed into the agitated slurry continuously over 1¢ hrs. The slurry is heated to 65‹C and agitated for a further 4 hours. The temperature is then raised to 99 ‹C to distil off the ethyl acetate, the slurry is cooled, and the grains separated. The grains have a density 0.35 grms/cc. Dinitrotoluene, dibutyl phthalate, or nitroglycerine may be added during the treatment. The amount of ethyl acetate may be “-2 parts per part propellent. The solvent may alternatively be emulsified with the non- solvent before the treatment, grains of nitrocellulose/nitroglycerine base or' nitrostarch base propellent may also be treated, and the solvent may be removed by bubbling air through the slurry. Specification 473,057 is referred to. _____
Patent GB-1184886-A (GB)
Title: Improvements relating to Air Purifiers for Dwelling Houses, Workshops and other Buildings, Functioning by Ionisation
Inventor: EBERT PAUL
IPC: F24F3/16
Filed: 1968-05-21
Abstract: 1,184,886. Purifying air; contacting gases with liquids. AEROPUR S.A. 21 May, 1968, No. 24174/68. Headings B1R and B2J. [Also in Division F4] An air purifier comprises a chamber in which an electric field is provided between a metal plate 2 and a screen 5 over which water trickles to remove the impurities in the air into a tank 8, a pump 9 raising the water into a reservoir 10. Air is drawn in by means of a fan 1. The device may be arranged so that the screen lies approximately horizontal. The screen may be replaced by an endless conveyer which conveys water past the plate 2. In a further modification an electrode is provided in the centre of the chamber and water is arranged to trickle over the peripheral walls of the chamber.
Patent GB-369863-A (GB)
Title: Foundation for electric machines and apparatus carrying high voltage
IPC: H01B3/48
Filed: 1931-08-31
Abstract: 369,863. Bricks. SIEMENSSCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Aug. 31, 1931, No. 24474. Convention date, Sept. 4, 1930. [Class 87 (i).] Paper bricks soaked in an insulating material, e.g. asphalt, are used in making a foundation for high voltage electric apparatus.
Patent GB-1335907-A (GB)
Title: Couplings for connecting tow shaft ends
IPC: F16D25/061
Filed: 1971-04-19
Abstract: 1335907 Shaft couplings BURMEISTER & WAINS MOTOR-OG MASKINFABRIK AF 1971 AS 19 April 1971 [18 March 1970] 24570/71 Heading F2U An annular portion 2 of a member 1 on one shaft surrounds a portion 4 of a member 6 on another coaxial shaft, both portions having recesses 12, 13 facing the other portion and arranged so that when aligned, pairs of recesses form conical cavities to receive conical bolts 11 movable axially into and out of engagement with the recesses and connected to an hydraulic cylinder and piston 16. The bolts 11 may be rigid with an axially slidable ring 7 housing the cylinders, the pistons 16 having screwed connections 19 to another ring 8, both rings having stops, as at 28, to limit their extension. There may be eight bolts 11 equally spaced circumferentially between which may be four compression coil springs (34) Fig. 5 (not shown) and four buffers with Belleville springs (31) Fig. 4 (not shown). When the bolts are in the engaged positions, they may be held there by internally threaded nuts 22 being screwed on to threads 21 on the pistons 16.
Patent GB-1201258-A (GB)
Title: Improvements in devices for providing shielding from radioactive radiation
Inventor: BRISAC MICHEL
IPC: G21F5/015
Filed: 1969-05-14
Abstract: 1,201,258. Shielded enclosures. COMMISSARIAT A L'ENERGIE ATOMIQUE. 14 May, 1969 [17 May, 1968], No. 24597/69. Heading B4Q. An aperture 12 through a shielding wall 8 may be opened or closed by a sphere 1 of shielding material pivoted at 9 and having a passage 11 which may be aligned with the aperture. To provide adequate shielding thickness when the sphere is in the closed position, shown, the passage 11 is blocked by an axially movable mandrel 13 of shielding material driven through a rack and pinion gearing 15, 16 by a motor 17. The mandrel 13 is withdrawn from the passage 11 when it is required to rotate the sphere 1 to the open position. In another embodiment (Fig. 2, not shown) in which the sphere 1 opens or closes the entry to a shielded transport flask, the mandrel is in two halves which meet at the centre of the sphere and are withdrawn in opposite directions when it is required to rotate the sphere to the open position.
Patent GB-670755-A (GB)
Title: Improvements in or relating to agricultural machinery
IPC: A01D78/08
Filed: 1949-09-26
Abstract: 670,755. Portable endless conveyers; loading vehicles. WAHBURTON, J. R. Sept. 21, 1950. [Sept. 26, 1949] No. 24650/49. Classes 78 (i) and 78 (iv). [Also in Group I] A portable loading device comprises a wheeled frame 1 carrying a pick-up elevator 22 feeding the material from the ground on to a transverse conveyer 60 which transfers it to a receiving vehicle alongside, the conveyer being slidably mounted in channel-section guides 55 so that it can project to an adjustable extent from either side of the machine. The elevator 22 comprises an endless band having tined slats at intervals and is pivoted about the axis 18 of its upper roller 20. The lower end carries groundengaging shoes 26 and is raisable, for transport, by a lever 33 and links 28. Parallel to the upper elevator-roller 20 is a second, lower, roller 21 which, together with fixed guides 14, assists the transfer of the crop on to the band 60. The band 60 is slatted and is driven from a lay-shaft 74 through V-belting 78, a movable jockey-pulley 79 being provided to take up belt-slack in any adjusted position. The frame is mounted on land wheels 4 and castors 12 and carries an engine 37 for driving the conveyers and roller 21. The machine may be associated with the vehicle described in Specification 670,768, [Group I].
Patent GB-243864-A (GB)
Title: New or improved appliances for playing a game of skill
IPC: A63D15/00
Filed: 1924-10-18
Abstract: 243,864. Ferguson, J. C. Oct. 18, 1924. Board games. - A rectangular board for use in playing a game with cues and balls has a raised and cushioned border A and is provided at one end with a number of upstanding pillars H around which cushions are stretched to form circular, elongated and triangular cushions C, and is provided at the other end with a raised platform D fitted with pockets E. In playing a game, a number of balls are used, one of which is of a distinctive colour. The player strikes the ball of distinctive colour with the cue so as to rebound from the cushions C on to the other balls and change their positions or drive them into the pockets E.
Patent GB-443350-A (GB)
Title: Process for the production of a therapeutically active compound of hexamethylenetetramine
Filed: 1935-09-05
Abstract: A double compound of calcium thiocyanate with hexamethylenetetramine having therapeutic properties is prepared by interaction of hexamethylenetetramine, or its formative components ammonia and formaldehyde, with calcium thiocyanate in the presence of solvents such as water and alcohol.  Examples are given.
Patent GB-837637-A (GB)
Title: Change speed and reversing gearing transmissions
IPC: F16H3/093
Filed: 1957-08-07
Abstract: 837,637. Reversing gearing; change-speed gearing. CLARK EQUIPMENT CO. Aug. 7, 1957 [Aug. 31, 1956], No. 24859/57. Class 80 (2). In a combined reversing and change-speed gear, the input shaft 10 continuously drives a reverse drive-shaft 60 and rotatable gears 22, 58 on the input and reverse drive-shafts are selectively clutchable to the shafts to drive a gear 56 secured to a countershaft 44 which drives an output shaft 116 through a multi-speed gear. The input shaft 10 is supported in a bearing 12 in the front wall of a casing 14 and is supported within bearings in a hollow shaft 16 carried in bearings 18 in the rear wall of the casing 14. The shaft 10 has rigid therewith a gear 20 meshing with a gear 70 rigid with a similarly mounted reverse drive-shaft 60. The hollow shafts 16 and 66, which can be respectively clutched to the shafts 10, 60 by fluidactuated friction clutches 24, 72, carry gears 22, 58 both meshing with a gear 56 rigid with a countershaft 44. The countershaft had rigid therewith a gear 54 and, clutchable thereto by a clutch 76, a gear 74. The gears 54 and 74 are meshed with gears 78, clutchable to a second countershaft 82 by clutch 92, and 80 rigid with the shaft 82. The gear 80 meshes with gears 96, 122 rigid with hollow shafts 98, 124 clutchable by clutches 108, 134 to third and fourth countershafts 100, 126, respectively. The countershafts 100, 126 have gears 112, 138 rigid therewith and meshing with gears 114, 140 rigid with the output shaft 116. By selection of the clutches four speeds in forward or reverse are obtained.
Patent GB-300572-A (GB)
Title: Improvements relating to the production of artificial silk by the copper oxide ammonia stretch spinning process
IPC: D01F2/04
Filed: 1928-08-29
Abstract: 300,572. Bemberg Akt.-Ges., J. P. Nov. 15. 1927, [Convention date]. Ammoniacal-copper cellulose solutions, processes for making filaments from.-In the manufacture of artificial silk from ammoniacal-copper solutions of cellulose by a stretch-spinning process in which a single circulating precipitating liquid is employed, only a portion of the liquid is withdrawn and the remainder is used again after the content of copper and ammonia has been reduced to a value low enough for this purpose. When the ammoniacal-copper cellulose solution to be precipitated has been prepared with the use of copper hydrate, the portion of precipitating liquid withdrawn may be freed by boiling from copper and ammonia in an amount equal to the total copper-ammonia increment produced in the whole bulk of the liquid by the precipitating process and may then be returned to the remainder of the precipitating liquid. When, however, the solution to be precipitated has been prepared with the use of basic copper sulphate, the portion withdrawn must be replaced by fresh precipitating liquid, namely water, in amount necessary to give the required dilution. Specification 8711/08 is referred to.
Patent GB-480650-A (GB)
Title: Improvements in and relating to dielectric materials and methods of making the same
IPC: H01B3/06
Filed: 1937-09-13
Abstract: A dielectric material comprises asbestos fibre heat treated with a long chain organic fatty oil acid, e.g. stearic acid or linseed oil acids.  The asbestos is heated with the organic acid alone or in a solvent such as alcohol or other, the mixture filtered hot and the fibre dried.
Patent GB-728765-A (GB)
Title: Improvements relating to backrests of hospital and like bedsteads
IPC: A47C19/02
Filed: 1952-10-04
Abstract: 728,765. Sliding bolts. EVANS & CO., Ltd., J. N., EVANS, D. K. L. N., and EVANS, J. K. N. Dec. 15, 1953 [Oct. 4, 1952], No. 24910/52. Class 44 [Also in Group XIV] A back rest for beds comprising a frame having horizontal tubes 6, 7 connected by vertical tubes 8, the outer of which telescope on rods 3 hinged to the head end 5 of the bed, is locked in adjusted position by hand-actuated means, lodged within tube 6. In one arrangement, Fig. 2, a locking bar 10 contained in tube 6 is partially turned by handle 11 which causes matched grooving on the ends of bar 10 to become asymmetric to rods 3 to give a frictional binding between bar 10 and rods 3. Unlocking is by reversal of handle 11. Another arrangement, Fig. 6, is to have bar 10 in two parts 10a separated by a compression spring 15, for pressing their ends 16 against rods 3. Retraction of elements 10a is by bringing the triggers 17 together. In place of spring 15, a cam or a coned screw engaging a divided nut may be used. Friction pads, e.g. of hard rubber, may be used at the ends of elements 10a, or the nose end of each element 10a engages recesses or holes along rod 3.
Patent GB-957946-A (GB)
Title: Polyurethanes derived from polyether polyols
IPC: C08B37/00
Filed: 1960-07-18
Abstract: Sucrose-ethylene oxide condensation products are prepared by reacting 1 mol. of sucrose with 10 to 20 mols. of ethylene oxide in the presence of water and an oxyalkylation catalyst. In example A, sucrose, sodium hydroxide and water are placed in an autoclave, stirred, heated to 105 DEG F. and the ethylene oxide passed in.  The product was washed with water and neutralized by treating with ion-exchange resin.  It was then stripped of water and decolourized by heating with activated diatomaceous earth.  The product may be combined with di-isocyanates to give polyurethanes (see Division C3). Specification 957,947 is referred to.ALSO:Polyurethanes or prepolymers thereof are prepared by reacting an organic isocyanate containing at least two isocyanate groups and a polyether polyol, the polyol being derived from sucrose wherein the hydroxy groups of the sucrose molecule have been etherified with most or all of the hydrogen atoms of said groups replaced by same or different groups having the structure <FORM:0957946/C3/1> in which R is hydrogen, methyl or ethyl an n is 0-8, the total of all n's in the molecule being from 2-18. In the examples, the prepolymers are joined by reacting toluene di-isocyanate, 80% of the 2, 4 isomer and 20% of the 2, 6 isomer, with a polyether polyol comprising sucrose and ethylene oxide or a mixture of ethylene and propylene oxides (as in Specification 957,947) in such a ratio that there were 3 to 10 isocyanate groups per hydroxy group of the polyol. Foamed pre-polymers may be made by adding a blowing agent, such as water or carbon fluorotrichloride, a catalyst and an emulsifier to the above reactants. The polyether polyol may be admixed with another polyol, such as tri-methylolethane or a phosphorus-containing diol. Polyurethanes were prepared by reacting the pre-polymer and more polyol, both pre-polymer and polyol containing blowing and emulsifying agents and a catalyst such as dimethylethanolamine if foamed polyurethane is required. Alternatively, the polyurethane may be prepared in a single stage.
Patent GB-319760-A (GB)
Title: Improvements in compressed gas containers
IPC: F17C7/00
Filed: 1929-08-15
Abstract: 319,760. Johann, C. S. Sept. 28, 1928, (Convention date]. Storing under pressure. - A filling and discharge fixture for containers of carbon dioxide or other compressed gases, capable of operation by gravity, or by electrical or fluid pressure means, e.g. in fire-extinguishing, ccmprises a hollow body 1 screwed into the container, and having a bcre which terminates in a raised seat 4 on which a sealing disc detachably secured to a plug 6 is held by screwing the plug in. Before the disc is screwed down, the container is filled through a pipe connection 9. The plug carries a piercing plunger 10 which on piercing the disc allows the fluid to escape through its hollow body and the pipe connection 9. This piercer passes through a labyrinth packing 11 and is provided w.th a knob 17 for actuation by hand. A base 19 supporting gravity or other actuating means is screwed on the body 1. Fig. 4 shows a striking- weight 21 capable of release from a catch-lever 22, e.g. on the fusion of a link. Fig. 5 shows a striking-pin 25 attached to an armature attracted by a solenoid 23. Fig. 6 shows a piston 27 forced on to the piercer by fluid pressure. Fig. 7 shows actuation by a lever 30 on pulling a wire 31. A battery of containers is described. the first two of which are opened by a lever as in Fig. 7, the pressure of the escaping fluid opening the remainder as in Fig. 6.
Patent GB-532442-A (GB)
Title: Improvements in or relating to boxes for darts
IPC: B65D85/00
Filed: 1939-08-31
Abstract: 532,442. Boxes for darts. LOWY, F. Aug. 31, 1939 No. 25002. [Class 18] A rectangular box for darts e.g. of the drawer type or the lift-off or hinged lid type ha: a dart point receiving element 9 consisting of a piece of cork, or, as shown, a raised stage 9 with slots for receiving the dart points a stage 11 receiving the shanks 12 of the dart flights. Triangular compartments are formed by partitions 8. The stages 9, 11 may form part of a platform 17, with which the partitions 8 may also be integral.
Patent GB-422498-A (GB)
Title: Improvements in wire rope conveyors
IPC: B65G17/20
Filed: 1933-09-11
Abstract: 422,498. Wire rope conveyers. EFANDEM CO., Ltd., and LAWRENSON, W. H., Fallings Park Works, Wolverhampton. Sept. 11, 1933, No. 25081. [Class 104 (ii)] A conveyer comprises an endless rope A passing round two pulleys, supports D, d for the rope, and containers &c., G provided with hooks H hung on the rope. The supports d have recesses d<3> to provide clearance for the ends of the hooks. If the rope has to change its direction, it is passed round a star-wheel J provided with grooved teeth j engaging the rope. To prevent the hooks H being caught by the teeth and detached from the rope, a stop finger N is provided, sliding in a housing m and pivoted to a lever P, which is connected at one end to a spring Q, and at the other end carries a roller p<1> adapted to engage the points of a series of pins j<2> mounted in the wheel J. When the roller p<1> engages a pin j<2>, the lever is rocked and the pin N descends to engage a hook H and stop it until its movement will bring it into a gap between the teeth j.
Patent GB-944858-A (GB)
Title: Improvements relating to high power direct current circuits
Inventor: SHERLOCK JAMES
IPC: H02H9/02
Filed: 1961-07-11
Abstract: 944,858. Switching systems including static transformers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. June 19, 1962 [July 11, 1961], No. 25123/61. Heading H2H. A circuit arrangement for supplying a load L from a high power, high voltage direct current source V1 over a circuit breaker C includes an electromagnetic device T, the winding N1 of which is connected between the source V1 and the circuit breaker C so as to carry the load current which drives the core P of the device into saturation in one direction and the winding N2 of the device being connected to an auxiliary low voltage direct current source V2 over a switch S such that the current flowing in the winding N2 when the switch S is closed in normal operation is such that the core P is driven in saturation in the opposite direction to that of the winding N1. Thus opening of switch S causes the core P to move from one saturation state to the other so inducing an e.m.f. opposite to the applied voltage V1 during which time the circuitbreaker C can be opened under reduced current conditions. The core P is made of material with a rectangular hysteresis loop.
Patent GB-246547-A (GB)
Title: Improvements in or relating to gas-heated geysers
IPC: F24H1/12
Filed: 1924-10-22
Abstract: 246,547. Andrews, W. F., Tarper, A. H., and Hellyer, R. H. Oct. 22, 1924. Internally-fired boilers; geysers.-A gas-heated geyser is provided with an outer jacket having a protective coating of vitreous enamel. In the example shown, an iron sheath 7, coated with the enamel, surrounds the water holding elements and may be heat insulated therefrom as by asbestos sheeting 22, and/or an air space, suitable openings at top and bottom permitting an air circulation.