baber/WOPTO huggingface dataset:
Patent GB-1087071-A (GB)
Title: Preparation of lactones
Inventor: BARTON DEREK HAROLD RICHARD
IPC: B01J19/12
Filed: 1963-07-03
Abstract: The invention comprises (a) a process for the preparation of lactones in which an N-halo-carboxylic acid amide possessing a carbon-attached hydrogen atom conformationally adjacent or able to become conformationally adjacent to the nitrogen atom of the amide group is subjected to homolytic fission of the nitrogen bond whereby there is formed, either spontaneously or after hydrolysis of the reaction products, a lactone ring wherein the carbonyl group of the amide group is joined by a further oxygen atom to the carbon atom initially carrying the conformationally adjacent hydrogen atom, and (b) N-iodo-amides of formula (R1)2CHXC(R1)2CONRI, wherein R is a hydrogen atom or an aliphatic, cyclo-aliphatic, araliphatic or aryl group, X is oxygen, sulphur, or a group -C(R1)2- or -NR1-, and the substituents R1, which may be the same or different, are hydrogen atoms or aliphatic, cycloaliphatic, araliphatic or aromatic groups or two or more taken together form a cycloaliphatic or aromatic ring structure, and their preparation by reaction of an amide with a source of positive iodine ions.  Other N-halo-amides are also prepared by reaction with a source of positive halogen ions. Hydroxyacids and hydroxyacid amides are prepared from the lactone products defined above by hydrolysis or reaction with ammonia or an amine.  N - Iodo - 4 - phenyl- or 4 - methyl - 4 - ethyl-butyriminolactone-iodine dichloride complexes are obtained by irradiation of corresponding N-halo-amides.  4-Phenyl-butyramide is obtained by treatment of the 4-phenyl-butyriminolactone complex described above with Raney nickel.  o-Toluamide, octadecanamide and 3-b -acetoxy-11 - oxo - 5a  - pregnane - 20 - carboxylic acid amide, N-methylamide or N-phenylamide are prepared by reaction of the appropriate acid chloride or anhydride with an amine. 4-Methyl-hexanamide is prepared by converting citronellal to its p-tosylate, treating this with ozone and lithium aluminium hydride to form 4-methyl-cylcohexan-1-ol, oxidizing this with chromic acid and sulphuric acid to form 4-methyl-hexanoic acid, and treating this with thionyl chloride and ammonia.
Patent GB-489212-A (GB)
Title: Improved pistol-type machine gun
IPC: F41A19/03
Filed: 1937-09-29
Abstract: 489,212. Automatic pistols. PETTER, C. G. Sept. 29, 1937, No. 26404. Convention date, Nov. 30, 1936. [Classes 92 (ii) and 119] Relates to means for regulating the speed of discharge of the type in which the return of the breech block 8 to firing position is controlled by an oscillating spring-controlled mass 47. According to the invention, a three-armed lever pivoted at 54 to the fixed gun casing has one arm x engaged by the breech block at the end of its backward movement to impart by a rod 56 an impulse to the mass, a second arm y which acts as an auxiliary sear to retain the breech block, and a third arm z which engages a cam surface 60 on the mass to move the arm y into and out of retaining position. The invention is shown applied to a short recoil automatic pistol in which the barrel 6 is rocked on a short link 18 to disengage the locking lugs 17 from the breech block which then recoils alone against the action of a long return spring 14 and is held in rear position by the usual sear 29 controlled by a trigger 25. The gun casing 1 is formed of sheet metal and is open at the bottom to accommodate a casing 3 carrying the firing mechanism and box magazine 20, the casing 3 being detachably connected to the casing 1 by removable bolts 19, 34. The bolt 34 also serves to retain the pistol grip member 37 which is recessed to house the rate-of-fire regulator, the recess being closed by a removable cover plate 64, Fig. 8. The pistol butt engages slots 44 in the member 37 and is retained by a fingerreleased catch 46.
Patent GB-708963-A (GB)
Title: Method for the preservation of surfaces and materials from the action of fungi and bacteria
IPC: A23B7/16
Filed: 1951-11-12
Abstract: Surfaces and materials are preserved from the formation of fungi and bacteria by providing them with coatings or protective layers comprising, or mixed with, an esterification product of an aliphatic carboxylic acid having up to eight carbon atoms in the aliphatic chain and a polyhydric alcohol or its halogen hydrin, at least one of the residues constituting the ester being substituted by halogen, especially chlorine or bromine.  The esters referred to are the ethylene glycol di-ester of monochloroacetic acid, the ethylenebromohydrin ester of monochloroacetic acid, the di-glycol di-ester of monobromopropionic acid, the triglycol di-ester of monochloroacetic acid and the di-glycol di-ester of monobromoacetic acid.  The compounds may be mixed with whitewash or oil paint and used to coat brickwork or wood; cardboard or paper used for packing food-stuffs may be impregnated with a solution of the compounds in water or an organic solvent; goods in bulk such as potatoes or turnips may be covered with a layer of the compounds or a mixture of the compounds with a carrier such as talc or kieselguhr; and jam or preserved fruit may be covered with a sheet of grease-proofed paper or "Cellophane" (Registrated Trade Mark) soaked in a solution of one of the compounds.ALSO:Surfaces and materials are preserved from the formation of fungi and bacteria by providing them with coatings or protective layers comprising, or mixed with, an estersification product of an aliphatic carboxylic acid having up to eight carbon atoms in the aliphatic chain and a polyhydric alcohol or its halogen hydrin, at least one of the residues constituting the ester being substituted by halogen, especially chlorine or bromine.  The esters referred to are the ethylene glycol di-ester of monochloroacetic acid, the ethylenebromohydrin ester of monochloroacetic acid, the di-glycol di-ester of monobromopropionic acid, the triglycol di-ester of monochloracetic acid and the di-glycol di-ester of monobromoacetic acid.  The compounds may be mixed with whitewash or oil paint and used to coat brickwork or wood; cardboard or paper used for packing food-stuffs may be impregnated with a solution of the compounds in water or an organic solvent; goods in bulk such as potatoes or turnips may be covered with a layer of the compounds or a mixture of the compounds with a carrier such as talc or kieselguhr; and jam or preserved fruit may be covered with a sheet of grease-proofed paper or "Cellophane" (Registered Trade Mark), soaked in a solution of one of the compounds.
Patent GB-426055-A (GB)
Title: Method of and arrangement for producing relaxation oscillations of constant frequency
IPC: A47K13/00
Filed: 1933-09-27
Abstract: 426,055. Valve generating circuits. RADIOAKT.-GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, and SCHLESINGER, K., 39, Friedrichstrasse, Friedrichshagen, both in Berlin. Sept. 27, 1933, No. 26536. Convention date, Oct. 1, 1932. [Class 40 (v)] In order to maintain constant frequency in a relaxation oscillator despite changes in supply voltage, the breakdown voltage of the discharge valve is arranged to vary automatically with the supply changes. The supply may be taken from house mains 11 through a transformer 10, rectifier 7, and smoothing condenser 6. The relaxation condenser 2 is charged through a resistance 1, until the voltage on the condenser 2 reaches the breakdown voltage of the discharge valve 4, whereupon the' condenser is discharged. A resistance 12 is placed in the charging circuit, and the voltage across it is conveyed to the grid 5 of the valve 4 through a resistance 13. If supply voltage rises, the condenser 2 charges more rapidly, and the voltage applied to the grid 5 becomes more negative so that the breakdown voltage of the valve 4 is increased. The valve may have a heated or unheated cathode, and preferably contains mercury vapour or neon at low pressure. The oscillations may be synchronized for television &c. by applying synchronizing voltages at 14.
Patent GB-1088483-A (GB)
Title: Electrophotographic record element
IPC: G03G5/05
Filed: 1965-06-23
Abstract: 1,088,483. Electrophotographic materials. RADIO CORPORATION OF AMERICA. June 23, 1965 [July 30, 1964], No. 26669/65. Heading H1K. The photoconductive layer of an electrophotographic material contains zinc oxide, cellulose acetate butyrate, and a mono-organo silsesquioxane. It may also contain sucrose acetate isobutyrate, a coating viscosity modifier such as a silicone fluid, and a plasticizer such as triphenyl phosphate. The organic components may be dissolved in any of a large number of solvents disclosed, the zinc oxide dispersed in the solution, and known methods used to coat the dispersion on to supports made of metal, paper, or regenerated cellulose. The silsesquioxane preferably contains phenyl groups mixed with some propyl groups.
Patent GB-992152-A (GB)
Title: Aminoesters
Inventor: GALIMBERTI PAOLO
IPC: C07C59/68
Filed: 1962-07-11
Abstract: The invention comprises compounds of the formula <FORM:0992152/C2/1> (wherein R represents an alkyl, aralkyl or cycloalkyl group or an aryl group, unsubstituted or substituted by alkyl, alkenyl, alkoxy or phenyl radicals) and hydrohalide salts thereof, and the preparation thereof by refluxing in the presence of an alkali metal hydroxide, 1,1 - dimethyl - 2 - trichloroethanol with an excess of an alcohol of the formula ROH and reacting the so produced O-substituted hydroxybutyric acid of the formula <FORM:0992152/C2/2> with diethylaminoethyl chloride.  The 1,1-dimethyl-2-trichloroethanol may be formed in situ when the alcohol is reacted with acetone and chloroform in the presence of an alkali metal hydroxide.  Therapeutic compositions with choleretic properties for oral administration comprise compounds of the general Formula (I) or ah ydrohalide salt thereof, together with a pharmaceutically acceptable carrier or diluent.
Patent GB-911333-A (GB)
Title: Apparatus for controlling the supply of a volatile chemical sterilizing agent to a sterilizer
Inventor: LEUTHNER FRANK GEORGE
IPC: A61L2/20
Filed: 1960-08-02
Abstract: 911,333. Automatic pressure and temperature control. WILMOT CASTLE CO. Aug. 2, 1960, No. 26746/60. Drawings to Specification. Class 38 (4). In an electric control apparatus for controlling the pressure of a volatile chemical sterilizing agent, such as carbon dioxide and ethylene oxide or chloro-fluoro methane and ethylene oxide, in a sterilizer or storage tank therefor, a pressure-operated switch is opened when the pressure of the sterilizer agent exceeds a predetermined value and through a solenoid valve cuts off the supply of sterilizing agent from highpressure storage cylinders. The pressure in the cylinders is sensed by pressure-operated switches which are closed when the pressure in the cylinders falls below a minimum desired value. The switches are connected to relays arranged to control solenoid valves for the cylinders so that one cylinder supplies the sterilizer until discharged and the other cylinder then takes over. In a modification, a latching relay is employed so that a particular high-pressure cylinder initially supplies the sterilizer. The temperature in the storage tank is maintained constant by controlling a steam heater with a thermostat.
Patent GB-871498-A (GB)
Title: Improvements in or relating to partitions for boxes, drawers and like containers
IPC: B65D5/49
Filed: 1956-08-31
Abstract: 871,498. Partitions for boxes. BREHMER FOLDING BOX CO. Ltd., and THOMPSON, H. H. July 18, 1957 [Aug. 31, 1956], No. 26749/56. Class 18. A partitioning element for boxes is made up from a cardboard blank, parts of which are folded to stand at right angles to its plane, parts additionally folded to stand at right angles to other folded parts and the folded part is sandwiched between other portions. In one embodiment, a blank is scored along the chain lines shown in Fig. 1, cuts being made along solid lines 1, 2. The blank is folded so that the two halves of the central part 7 stand up, with their rear faces contacting, at right angles to parts 21, 22. Parts 9 and 11, 10 and 12 are folded face to face, and then upwardly about score lines 17, 18 19 and 20 so that parts 13, 14 and 15, 16 are at right angles to the parts 21, 22. The parts 9/11 and 10/12 now extend at right angles to the parts 13, 14 and 15, 16 and shaded areas 23, 24 of the folded central part 7 are sandwiched between the parts 9/11 and 10/12, thus providing rigidity.
Patent GB-973288-A (GB)
Title: Improvements in aircraft
IPC: B64C29/00
Filed: 1962-07-12
Abstract: 973,288. Jet propelled and lifted aircraft. M. L. HUREL, J. H. BERTIN, and M. P. LE NABOUR. July 12, 1962 [July 26, 1961], No. 26904/62. Heading B7G. An aircraft has a jet nozzle with a deflecting grid of adjustable blades, each comprising two flat elements hinged together about a line parallel to the planes of the elements and perpendicular to the direction of flow through the nozzle, and means for pivoting the elements from a position where the elements and the direction of flow are aligned, to deflected positions in which the angle made by the downstream element with the flow is greater than that made by the upstream element. Fig. 2 shows a section of one blade, element 3 being hinged at 5 to fixed structure, and element 4 hinged at 6 to element 3. A rod 8 extends between a fixed pivot 9 and an arm 7 on element 6. A grid of such blades may be disposed across a nozzle discharging downwardly and rearwardly to provide lift and horizontal thrust when the elements are in position I. In position II, the flow is smoothly directed rearwardly (arrow F 2 ), and in position III, downwardly (arrow F 1 ). The nozzle may make an angle of 45 degrees, or less, say 30 degrees, with the aircraft fore-and-aft axis. Fig. 3 shows an embodiment in which a wing 11 contains a ducted fan 12. Blade elements 3a, 4a are aligned when extending downwards, for high lift, and when extending horizontally, to fair the duct outlet, and in intermediate positions are as at II in Fig. 2, to deflect the airflow smoothly to give a propulsive component of thrust. Specification 905,911 is referred to.
Patent GB-163244-A (GB)
Title: Improved apparatus for drying granular material
IPC: F26B17/12
Filed: 1920-09-21
Abstract: 163,244. Wettig, H., and Topf & Soehne, J. A. Sept. 21, 1920. Gravity, materials descending by; air and gases, controlling circulation of.-Relates to apparatus of the type in which granular materials are dried within a perforated shaft by side currents of hot and cold air, the directions of the air currents being reversed by means of valves fitted within the drying-chamber, and consists in dividing the material within the shaft into layers by means of horizontal plates which are operated so as to allow the material to pass intermittently through the shaft. The invention also consists in means for heating the drying-current during its passage through the chamber. As shown, the perforated shafts 10, Fig. 1, are supported upon the false bottom 9 of the drying-chamber 1, which has coldair passages 16 communicating through flaps 15 with the stoke-hole or the atmosphere, the space between the sides of the chamber and the shafts. being divided into air chambers 17 by adjustable plates 18. The material within the shafts is divided into layers by removable plates 20 arranged level with the air - chamber plates 18. The flue gases from the furnace 4 pass through pipes 6 contained within a chamber 7 which communicates through nozzles 8 with the hot-air chamber 19. Hot or cold air may be passed into the air chambers through flaps 21 and 22 arranged in the false-bottom and the sides of the chamber respectively. The flow of air through the chambers and the material may be reversed by adjusting the air-chamber plates 18 and the flaps 21, 22. The flaps 22 may communicate directly with the atmosphere, and the materials may be discharged either continuously or intermittently from the shafts into troughs 13 containing screw conveyers 14. Modifications are described in which the airchamber plates are either fixed and provided with flaps or are hinged, to the sides of the chamber. In a further modification, air passages 28, Fig. 4, are arranged around the shafts communicating with the cold air passages 16 and the hot-air chamber 19, and the control air passage communicates through a valved chamber 32 with the atmosphere and the hot-air chamber.
Patent GB-1104642-A (GB)
Title: High speed printer
Inventor: SHARPLES PHILIP P
IPC: B41J9/38
Filed: 1965-06-25
Abstract: 1,104,642. Selective printers. ANELEX CORPORATION. 25 June, 1965, No. 26950/65. Heading B6F. A high-speed printer having a continuously rotatable drum 30, on which identical numerical characters are aligned at a printing position for line-by-line printing is provided with a hammer mechanism, which comprises a plurality of hammers 32 aligned opposite the numerical characters. The hammers 32 are disposed within an opening 34 of a plate 12, to which is attached the hammer assembly frame 80 comprising plates 82, 84 which serve as guides for the shanks 74 to which the hammer heads 70 are attached. The hammer heads are offset with respect to the shanks so that the shanks of alternate hammers may be aligned in a row, two such rows being formed. The hammer heads 70 are provided with slots 76 which are engaged by guide pins 89 mounted in the plate 82. The hammers are urged away from the drum 30 by springs 90, which in one row are retained by washers 83 sprung on to the shanks 74 and plate 82 and in the other row by washers 81 and plate 84. Each hammer cooperates with a relevant hammer actuating lever 36 operated by a solenoid 103 for timed impact of the hammers 32 against the drum 30. The solenoids 103 and their associated actuating levers 36 are arranged in two separate banks one for each row of alternate hammer shanks and the banks are arranged in fan-like array.
Patent GB-1274885-A (GB)
Title: Improved process for growing yeast on hydrocarbons
IPC: C12N1/28
Filed: 1969-05-28
Abstract: 1,274,885. Growing yeast on hydrocarbons. ATLANTIC RICHFIELD CO. May 28, 1969 [June 26, 1968], No.26961/69. Heading C6F. Enhanced cell and protein yields are obtained by growing yeast, particularly Candida intermedia, on an n-alkane (C 12  to C 22 ) substrate in the presence of a liquid nutrient medium which is of the kind useful for producing a protein-containing foodstuff and which contains from 8000 to 10000 micrograms per litre of zinc in the form of a water-soluble non-toxic zinc salt e.g. zinc sulphate heptahydrate (preferred), zinc acetate, zinc acetyl-acetonate, zinc chloride, zinc citrate or zinc tartrate.
Patent GB-927130-A (GB)
Title: Improvements relating to metallisable pyrazolidine azo dyestuffs, their complex metal compounds, and their use
IPC: C09B45/04
Filed: 1960-08-05
Abstract: The invention comprises dyes of formula <FORM:0927130/IV(a)/1> where A is a benzenic or naphthalenic residue, R1 and R2 are H or organic radicals and X is a metallizable group o to the azo group or a substituent which may be converted thereinto under metallizing conditions.  The invention includes the heavy metal complexes of the above dyes.  The metal free dyes are made by coupling the required diazo component with an appropriate 3,5-diketopyrazolidine. Metallization may be effected in substance or on the fibre and in the presence of other metallizable dyes.  1,1 and 1,2- complexes may be prepared. Carboxy, alkoxy and hydroxy are specified metallizable groups, the last-named being preferred.  The diazo components may contain azo groups.  Representative of indicated values for R1 and R2 are ethyl, cyclohexyl, benzyl, naphthyl, phenyl, benzthiazolyl-(2) and quinolinyl-(2) groups.  The aryl nuclei in the dyes may contain substituents such as fluorine, chlorine, ethyl, cyclohexyl, benzyl, chlorophenyl, hydroxyethoxy, phenoxy, nitro, cyano, trifluoromethyl, carbonyl, acylamino, sulphonyl, N-substituted sulphonamide, sulphonyl, carboxyl and sulpho groups.  Chromium and cobalt are specified metals.  Preferred are dyes where A is benzenic and R1 and R2 are phenyl residues.  The metal dyes colour textile materials and lacquers. Preferred for polypeptide fibres are 1,2- complexes of water-soluble monoazo unsulphonated dyes, dyeing being effected from a neutral to weakly acid bath.  When mixed metal-dyes are used and one of the dyes is a disazo dye it is an advantage for the final complex to contain a water-solubilizing group.  Wool, silk, leather, polyamide and polyurethane fibres are specified for dyeing.  Examples are provided of the preparation of the dyes, and their complexes, and the use of the latter in colouring wool and nylon in a variety of colours.  In Example 4 the disazo dye 3-amino-4-azophenol-31-sulphonic acid amide ---> 1,2-diphenyl-3,5-diketopyrazolidine is made and a cobalt coupler prepared therefrom in admixture with 2-aminophenol-4-sulphonic acid methyl amide ---> 1-phenyl-3-methyl-5-pyrazolone.  Reference has been directed by the Comptroller to Specifications 637,404 and 758,016.
Patent GB-533658-A (GB)
Title: Improvements relating to spark plugs
IPC: H01T21/02
Filed: 1939-10-05
Abstract: 533,658. Sparking plugs, AC - SPHINX SPARKING PLUG CO., Ltd., and CORBIN. D. H. Oct. 5, 1939, No. 27235, [Class 7 (iv)] Cooling ribs are secured by brazing to sparking plug casings. Spacing rings, integral with or separate from the ribs, may be interposed ; or the ribs may be twisted to act as their own spacing members.
Patent GB-213626-A (GB)
Title: Improvements in or relating to the recovery, separation or extraction of gold, platinum and other metals, applicable also for the separation of precious stones from the earth or material containing them and in apparatus therefor
IPC: B03B5/42
Filed: 1922-10-09
Abstract: 213,626. Hanciau, G. C. E. F. Oct. 9, 1922. Rotary wet-separating apparatus; washing- apparatus with screens; amalgamating.-Precious stones such as diamonds and rubies and metals such as gold, platinum, tin and lead are recovered from alluvial deposits or other material containing them in the free state, by the combined use of the force of gravity and a dense collecting liquid, not miscible with water, such as mercury, acetylene tetrabromide or methylene iodide. By this process gold can also be recovered from quartz after the latter has been crushed, the process being employed either before or after the cyaniding process. As a preliminary treatment the materials containing the precious stones or metals to be recovered are fed with water from a sluice B into an inclined rotary tapered drum A provided with lifting blades a<2> and annular discs a having peripheral slots a'. The large stones and other waste materials are discharged from the smaller end A<1> of the drum A whilst the water containing the earth, sand, small gravel and particles in suspension and also the precious stones or metals, is discharged from the larger end on to an inclined perforated grid c<1> which may be given an oscillating or jerky motion. The water, and the materials it contains then falls freely and preferably in the form of spray or jets into the dense liquid c<4> contained in an inclined chamber C a considerable distance below. The material plunges through the layer of muddy water E into the dense liquid c<4> and keeps the latter in a state of agitation, thus improving the separation. Gold particles will amalgamate with mercury when this is used and the precious stones will generally sink through the dense liquid whilst the sand and water remain on the top and pass away over an overflow c<2> into a collecting conduit D. Means other than the rotary drum may be employed to bring the material into a condition suitable for delivery to the grid. or if the material is already in such condition no preliminary treatment is necessary. In a modification, the drum may be perforated, in which case no grid is necessary.