baber/WOPTO huggingface dataset:
Patent GB-1420292-A (GB)
Title: Apparatus for needle punching fibre webs or the like
IPC: D04H18/02
Filed: 1974-01-24
Abstract: 1420292 Needling machine DR ERNST FEHRER GmbH & CO KG TEXTILMASCHINENFABRIK U STAHLBAU 24 Jan 1974 [2 March 1973] 03413/74 Heading D1R A needling machine comprises a plurality of needle beams 5, each reciprocated by a drive shaft 1 elastically connected to the drive shafts of adjacent beams, each needle beam having its individual rigid box-shaped housing 7 which guides the beam, and its associated balancing weight 11 disposed below the drive shaft 1 inside housing 7 and guided on rods 10 secured to the housing. Eccentrics or cranks 12 which drive the balancing weight are offset 180‹ to eccentrics 2 which drive beam 5.
Patent GB-944904-A (GB)
Title: Polyurethane foam and method of making same
IPC: C08J9/00
Filed: 1960-02-01
Abstract: A method of making a polyurethane foam comprises reacting a polyalkylene ether polyol and an organic polyisocyanate (or a prepolymer formed therefrom) in the presence of a foaming agent, a metal containing catalyst and a minor amount of polysiloxane-polyoxyalkylene block copolymer.  Specified polyalkylene ether polyols are those derived by condensing one or more alkylene oxides with a polyhydric alcohol e.g. glycerol, hexanetriol-1:2:6 and pentaerythritol. Specified metal containing compounds are polymeric organo-tin compounds, dibutyl tin laurate, tin maleate, potassium stearate, zinc stearate, sodium stearate, potassium acetate, sodium acetate, sodium and potassium hydroxide and carbonate and sodium methyl siliconate. Specified polysiloxane-polyoxyalkylene block copolymers are those of the formula: <FORM:0944904/C3/1> where R1, R2 and R11 are monovalent hydrocarbon radicals, p, q, and r are integers, n is an integer from 2 to 4 and s is an integer of at least 5.  Water is the specified foaming agent. Cross-linking agents e.g. trimethylol propane, glycerol, 1:2:4-butamediol, hexanetriol, pentaerythritol, the b -ethanol ether of 2-methyl-2-methylol-4-methyl-5-hydroxypropane, N:N:N1:N1-tetrakis(2-hydroxypropyl) ethylene diamine and hexamethylene diamine may be present in the reaction mixture as may tertiary amine catalysts, e.g. di(ethylene amino alcohol) adipate, dibutyl aminoethanol, butyl diethanolamine, triethylamine, trihexylamine, tributylamine, tripropylamine, N-methyl morpholine, N-octyl morpholine, 4-pyridine propanol and 4-n-amyl pyridine. In the examples, foamed polyurethanes are made by reacting a condensation product of propylene oxide and glycerol with toluylene diisocyanate in the presence of: <FORM:0944904/C3/2> (where (CnH2nO)w is a mixed polyoxyethylene-oxypropylene block containing n oxyethylene and 13 oxypropylene units), dimethyl cetyl t-amine, a mixture of mono- and di-phenyl-n-heptylamines and (1) aqueous sodium hydroxide; (2) aqueous sodium hydroxide, zinc stearate and starch and (3) zinc stearate and water. Specification 804,369 and U.S.A. Specification 2,834,748 are referred to.
Patent GB-898713-A (GB)
Title: Improvements in supports for christmas and like cards
Inventor: MELLOR TERENCE EDWARD
IPC: A47F7/14
Filed: 1960-02-01
Abstract: 898,713. Displays. CHAPMAN & CO. (PNC) Ltd., H. J. Jan. 31, 1961 [Feb. 1, 1960], No. 3515/60. Class 3(2). A display support for cards G is suspended from a loop H and comprises parallel rods A welded to inverted V-shaped rods F, the rods being of wire, plastic, or plastic-covered wire.
Patent GB-1202183-A (GB)
Title: Improvements in or relating to lamp-posts
IPC: F21V21/08
Filed: 1969-01-22
Abstract: 1,202,183. Lamp posts. P.R.I.C. PATENT RESEARCH (INTERNATIONAL) CORP. Inc. 22 Jan., 1969 [23 Jan., 1968], No.3562/69. Heading E1B. A lamp post comprising a tubular mast having a cylindrical head portion 1a and a tubular lantern carrying arm 2 with a cylindrical base 4 welded thereto, the arm is held in mast by screws 6 passing through holes 5 and is secured against rotation by a protrusion 1b on the head portion engaging in one of a series of depressions 4b in a reduced diameter portion 4a of the base 4.
Patent GB-1143336-A (GB)
Title: Production of sodium silicofluoride
IPC: C01B33/10
Filed: 1968-01-23
Abstract: 1,143,336. Sodium silicofluoride. TOYO KOATSIL INDUSTRIES Inc. 23 Jan., 1968 [7 Feb., 1967], No. 3577/68. Heading C1A. Highly pure sodium silicofluoride is prepared from crude phosphoric acid manufactured by treating phosphate containing rock with sulphuric acid, by adding sodium hydroxide or a sodium salt other than the fluoride or hydrofluoride to the phosphoric acid in the presence of sodium fluoride or hydrofluoride. The crude phosphoric acid produced contains 15% to 45% by weight of phosphoric oxide, and 1% to 5% by weight of hydrofluosilicic acid. Sodium salts that may commonly be used are the carbonate, phosphate, sulphate or chloride. The amount of sodium compound used is preferably between 0À5 and 3 times the stoichiometric amount necessary to form the sodium silicofluoride. The amount of sodium fluoride present in the solution does not need to be more than 10g. per litre of solution. Organic impurities in the crude phosphoric acid may be easily removed by filtration, using as a filter aid calcium sulphate crystals formed by hydrating gypsum semihydrate with water or aqueous phosphoric acid.
Patent GB-432129-A (GB)
Title: Improvements in rollers for lawns and the like
IPC: A01B29/02
Filed: 1934-02-03
Abstract: 432,129. Land and garden rollers; lawn - mowers. TAYLOR, F. W., 126, High Street, Wandsworth, London. Feb. 3, 1934, No. 3594. [Classes 6 (i) and 6 (ii)] A roller for attachment behind a motor lawn-mower consists of several roller sections 1 mounted on a common shaft, a rectangular horizontal frame mounted on the ends of the shaft and passing round the roller sections, converging extensions 5<a> fastened to the ends 5 of the frame and forming a draught member, and a U-shaped seat support above the roller, the end roller sections 1 being provided with enlarged bosses 2 to house roller bearings 3 held in place by washers and bosses 7 on the frame. The extension members 5a overlap to accommodate a spring-mounted draught eye 9 for connecting the roller to a mower. The long members 6 of the frame are bent round at the ends for securing on the end members 5. They act as scrapers. The seat 11 is supported on 2 inverted U -shaped members 10 and a footrest 12 is provided.
Patent GB-1030993-A (GB)
Title: Improvements in milling cutters
Inventor: MICHEL CAREJE
IPC: B23C5/00
Filed: 1963-01-29
Abstract: 1,030,993. Milling-cutters. DEREFA ETABLISSEMENT POUR LE DEVELOPPEMENT, RECHERCHES ET FABRICATIONS INDUSTRIELLES. Jan. 29, 1963 [May 11, 1962], No. 3601/63. Heading B3K. A milling cutter comprises blades distributed angularly around a body, the distribution following a sinusoidal law. The arrangement reduces vibration by avoiding resonance. More than one group of teeth may be provided.
Patent GB-350505-A (GB)
Title: Improvements in and relating to detergents
IPC: D06M11/38
Filed: 1930-02-03
Abstract: Comprises a mixture of mahogany sulphonates, preferably oil-free, with sludge-layer mineral oil sulphonates, in proportions varying from 1 per cent to 99 per cent of either constituent according to the nature of the material to be treated. The sludge-layer sulphonates act essentially as emulsifiers, and the mahogany or oil-layer sulphonates as depressants of surface tension.  For treating wool, the sludge-layer sulphonates should predominate in quantity or effect, while the reverse is the case for rayon which has been treated with mineral oil.  The detergent can be used in acid, alkaline or neutral bath.
Patent GB-928152-A (GB)
Title: Pyrazine derivatives
Inventor: CAMERINO BRUNO
IPC: C07D241/22
Filed: 1959-07-14
Abstract: The invention comprises: (1) compounds of the general formula <FORM:0928152/IV(a)/1> wherein X represents Br, OCH3 or OC2H5 and Y represents H or Br, but X is not Br when Y is H; (2) the preparation of the compounds in which Y = Br by treating 2-aminopyrazine with bromine in the presence of sodium acetate and acetic acid, and, if desired, treating the resulting 2-amino-3,5-dibromopyrazine (X = Y = Br) with an alkali metal methoxide or ethoxide; (3) the preparation of 2-amino-3-methoxypyrazine (X = OCH3, Y = H) by the following processes: (a) catalytic hydrogenation of 2-amino- 3-methoxy- 5-bromopyrazine (X = OCH3, Y = Br); (b) reaction of 2-amino-3-chloropyrazine with an alkali metal methoxide; or (c) treating 2-carbamido-3-methoxypyrazine with an alkali metal hypobromite; (4) the combination of (3)(c) with the preparation of the starting material by the action of hydrogen peroxide on 2-cyano-3-methoxypyrazine in the presence of alkali; (5) the combination of (4) with the preparation of the starting material by the action of an alkali metal methoxide on a 2-cyano3-halopyrazine; (6) the combination of (5) with the preparation of the starting material by the action of a phosphorus oxyhalide on 2-carbamido-3-hydroxypyrazine.  According to the first Provisional Specification, X may represent any alkoxy group, and the sodium acetate in the bromination step may be replaced by other alkali or alkaline-earth metal salts of weak acids, e.g. sodium formate or calcium acetate.
Patent GB-1125485-A (GB)
Title: Heat pipes and a method of making capillary inserts therefor
Inventor: CARON RENE
IPC: B21D53/02
Filed: 1966-01-27
Abstract: 1,125,485. Heat transfer devices. EUROPEAN ATOMIC ENERGY COMMUNITY. 27 Jan., 1966 [8 Feb., 1965], No. 3753/66. Headings F4S and F4U. [Also in Division B3] A heat pipe comprises a sealed container for a condensable vapour and a tubular capillary insert for causing transport of the condensed vapour from the cooler to the hotter area, the insert having grooves 12 and 14 in the internal and external surfaces forming slots 16 where they intersect. The capillary grooves are of different forms (Figs. 2-5) depending upon the size and position of the pipe and whether it is intended for use in a gravitational or non- gravitational field or both. The heat carrier may be lithium or silver. The capilliaries may be transverse circumferential grooves on the outside with longitudinal grooves on the inside. when the evaporation and condensation zones are circumferentially displaced. The insert is made from niobium.
Patent GB-709808-A (GB)
Title: Improvements in or relating to the manufacture of pyrimidine derivatives
Inventor: BOON WILLIAM ROBERT
Filed: 1951-02-16
Abstract: A process for the manufacture of pyrimidine derivatives of the formula: <FORM:0709808/IV (b)/1> wherein R1 stands for a monocyclic carbocyclic radical or for an alkenyl radical of not more than 3 carbon atoms, R2 stands for an alkyl radical or an alkenyl radical of not more than 3 carbon atoms and R3 stands for hydrogen or for an alkyl radical of not more than 4 carbon atoms comprises reacting a malondiamide derivative of the formula: <FORM:0709808/IV (b)/2> with formic acid at a temperature above 150 DEG  C.  In place of the malondiamide derivative there may be used a substance which will give rise to it in the reaction mixture, e.g. the N-methylol and N-formyl derivatives of the malondiamide derivative.  In place of the formic acid may be used a substance which will yield it in the reaction mixture namely oxalic acid or oxalic acid and glycerol. Suitable solvents for the reaction mixture are cyclohexanol, methylcyclohexanol, N-methyl- or ethyl-formamide, dimethylformamide, formanilide, N-methyl- or N-phenylformanilide, nitrobenzene, dichlorobenzenes and monochloronaphthalenes.  In examples: (1) 5-phenyl-1 : 5-diethyl-hexahydropyrimidine-4 : 6-dione is prepared by reacting a  : a  - phenylethyl - N - ethylmalondiamide and formic acid.  Similarly prepared are 5 - phenyl - 5 - methyl - hexahydropyrimidine-4 : 6 - dione, and 5 - phenyl - 5 - ethyl - 1-methyl - hexahydropyrimidine - 4 : 6 - dione and the corresponding 1-n-propyl- and 1-n-butyl derivatives, and 5-phenyl-5-ethyl-hexahydropyrimidine-4 : 6-dione.  The latter compound is also prepared in example (2) using various solvents; (3) to (5) 5-phenyl-5-ethylhexahydropyrimidine-4 : 6-dione is prepared by reacting (3) a  : a -phenylethylmalondiamide and oxalic acid; (4) the N : N1-dimethylol derivative of a  : a -phenylethylmalondiamide and formic acid; (5) a  : a -phenylethyl-N-formylmalondiamide and formic acid. Specification 666,027 is referred to.  a  : a  - Phenylethyl - N - n - butylmalondiamide is prepared by hydrolysis of a -phenyl-a  - cyano - N - n - butylbutyramide with cold concentrated sulphuric acid.  The N : N1-dimethylol derivative of a  : a  - phenylethylmalondiamide is prepared by reaction with formaldehyde.  a : a  - Phenylethyl - N - formylmalondiamide is prepared by oxidation with chromic acid of the N : N1-dimethylol derivative of a  : a -phenylethylmalondiamide.
Patent GB-140480-A (GB)
Title: Rotary valve engine of the internal combustion type
IPC: F01L7/06
Filed: 1918-03-05
Abstract: 140,480. Muddle, A. A. March 5, 1918. Valves; valve-gear; regulating.-- Rotary disk valves t are driven from an overhead sectional shaft x at one-fourth the speed of the crankshaft, each valve having a single port which registers with symmetricallyarranged inlet and exhaust ports in a cylinder head. Two inlet ports f and two exhaust ports g are located in the head of each cylinder. The valve stems carry wheels v which gear with worm-wheels w on the shaft x, each wheel v being fitted with a coiled spring to provide a resilient drive. Should a valve seize and fail to yield before its actuating- wheel v has reached a predetermined position, a finger on the wheel engages a lug on the valve stem and releases the valve. The wormwheels w are adjustable longitudinally upon their shafts to alter the timing of the valves.
Patent GB-101377-A (GB)
Title: Improvements in or relating to Apparatus for Lifting Water by Animal Power.
Inventor: SKEEN HENRY GEORGE
IPC: F04B19/08
Filed: 1916-03-15
Abstract: 101,377. Skeen, H. G. March 15, 1916. Bucket-elevator apparatus.-In apparatus for lifting water by animal power, two movable inclined gangways m, i work alternately to operate a winding-drum to which two leather buckets are attached. The two gangways are connected by a rope f, f<1>, which is wound a number of times around a pulley on the drum shaft. Each bucket is suspended by and between two ropes c, b, the slings of which support and keep the bucket from overturning until the moment of discharge when the connexion to the rope c passes over the pulley o. The rope c has a balance weight attached to its other end.
Patent GB-394059-A (GB)
Title: Improvements in and relating to drop windows
IPC: E05F11/38
Filed: 1932-02-09
Abstract: 394,059. Window holders ; window stops ; preventing rattling of windows. PETERS & CO., Ltd., G. D., Windsor Works, and DISMORE, A. V., 14, Martin Road, both in Slough, Bucking- hamshire. Feb. 9, 1932, No. 3885. [Class 44.] An unbalanced sliding sash 1 is held in various positions by stops 8, 9, 10 mounted on a spring strip 11 and spring- pressed to engage underneath the sash. Downward pressure on the sash presses in the stops so as to allow further opening of the window. The strip 11 is pressed outwardly by leaf springs 12, 13, 14 and may be floatingly housed in a channel 30. The sash slides in guide channels 2 and the channels 2, 30 are mounted in an outer channel 3. The sash may be lightly pressed against its seating to prevent rattling by a spring-pressed strip 25. In an alternative arrangement, the strip 11 is hinged at its lower end to the channel 30 and pressed outwards by a single leaf spring. The channel 3 may be extended at 32 to support a lower fixed sash 4.
Patent GB-607535-A (GB)
Title: An improved multiple drilling fixture
IPC: B23B47/28
Filed: 1946-02-07
Abstract: 607,535. Drilling-machines. STEANE, J. Feb. 7, 1946, No. 3907. [Class 83 (iii)] A multiple drilling fixture comprises a platform F upon which the work-pieces are clamped, the platform being vertically movable towards a number of drills C supported on a bench to which the fixture is secured, the upward movement of the platform being effected by a number of cams linked together by suitable connecting means to a master cam 15 rotated by manually-operated gearing. The drills C are independently mounted, are adjustable vertically and longitudinally and may be operated in any desired combination. The master cam 15 is eccentrically mounted on a shaft 16 which is turned by a hand-wheel H, keyed to a shaft 19, through gearing 17, 18. All the cams are linked by a rod 22 and each cam bears against a roller 24 mounted on the undersurface of the platform F. In a modification, each cam is mounted in a housing 27, Fig. 8, which is guided by rails 28 secured to the platform F, and carries rollers 30. End thrust on the table is taken up by ball-races. The work is gripped between fixed blocks and adjustable eccentric clamps 9.
Patent GB-564141-A (GB)
Title: Improvements relating to the manufacture of hat bodies
IPC: D04H1/06
Filed: 1943-03-11
Abstract: 564,141. Hats. ABBEY, A. (Hat Corporation of America). March 11, 1943, No. 4010: [Class 63] Felt hats are made of a mixture of fur fibres and from 5 to 75 per cent by weight of casein fibre staples. The acid-coagulable protein of the milk is selected, and prepared and processed so that the ash content is low and it is free from bacterial or peptonised decomposition products. It is dispersed by an alkali in minimum quantities to avoid breakdown of the proteins, filtered, pigments added, and brought to suitable viscosity for spinning, and extruded through spinnerettes into a coagulating bath, hardened and finished. Preferably, snubs and noils are removed, the fibres are separated by carding and combing and are then cut to ¥" length. The fur and casein fibres are then mixed or blended together, e.g. by high-speed picker rolls supplied by slow-speed feed rolls. Staples of Ducea, which is a viscose rayon, jute and ramie fibre may be added, or even short lengths of fine wire. The hats are formed by coning and shrinking in the usual manner.
Patent GB-693784-A (GB)
Title: Rotatable wave guide joints
IPC: H01P1/06
Filed: 1951-02-19
Abstract: 693,784. Wave-guides. GILFILLAN BROS., Inc. Feb. 19, 1951 [Sept. 5, 1950], No. 4032/51. Class 40 (viii). A rotatable waveguide joint comprises a base 12 upon which the outer member 11 of a coaxial wave-guide 10, 11 is mounted by means of bearings 15, 151. The annular gap 16 between the base and the member 11 communicates with annular cavities 17, 17A which have a total length of #/2 so that the impedance presented by the end wall of the cavity 17A is reflected at the gap 16. In a similar manner, the bearing 15, which is assumed to be of low resistance, is placed at a distance #/2 from the gap 16 so that its impedance is also reflected at the gap. The distance of the bearing from the junction of the cavities 17, 17A is #/4 so that, if it is assumed that the bearing has a relatively high resistance, a low resistance will appear at the junction.
Patent GB-577842-A (GB)
Title: Improvements in electric wave guides
IPC: H01P1/17
Filed: 1944-03-03
Abstract: 577,842. Wave guides. WESTERN ELECTRIC CO., Inc. March 3, 1944, No. 4044. Convention date, Dec. 23, 1942. [Class 40 (v)] A circular wave guide fed from a rectangular guide with linearly-polarized waves is provided with means for extracting the energy of components having undesired directions of polarization, said means comprising a radial probe or a radial outwardly-projecting auxiliary guide. As shown in Fig. 2, a probe 9 mounted on a hollow plug 12 is adjustably screwed into a tapped hole in the guide 1 and is held by a lock-nut 16. The probe is insulated from the plug and is connected thereto through a resistance 15, so as to absorb energy from waves whose polarization direction lies along the probe. The desired transmitting wave is polarized at right angles to the probe. In Fig. 6, the probe is replaced by an auxiliary guide 23 extending in a perpendicular direction from a rectangular slot 20 in the main guide 1, the distance S being about half a wave-length. A resistance sheet 26 extends downwards from the closed end of the guide 23 and its lower notched end faces the slot 20. Horizontallypolarized wave components are absorbed by the resistance sheet 26 or by a filling of absorbing material such as plaster of Paris impregnated with carbon. Fig. 7 shows the use of an absorbing probe 9 in association with a phaseshifter of the kind described in Specification 575,577. Vertically-polarized waves from a source 5 are fed through a rectangular guide 4 and impedance-matcher 35, of the kind described in U.S.A. Specification 2,106,769, to a first guide section 10 in which the probe 9 is inserted. The wave then passes to a further guide section 32 which is rotatable on its axis, and to a third section 33, impedance-matchers 35, 37, rectangular guide 7 to a dielectric antenna rod 36. The action of the diametral rods in the three guide sections is explained in the Specification referred to above. The use of the probe 9, Fig. 7, enables the phase-shifter to operate on a wide frequency band.
Patent GB-1512937-A (GB)
Title: Equipment housing
IPC: G07F9/02
Filed: 1977-02-02
Abstract: 1512937 Controlling access to security enclosures G A O GES FUR AUTOMATION UND ORGANISATION mbH 2 Feb 1977 [2 Feb 1976] 4203/77 Heading E2S The functional unit 4 of a device such as a money-dispensing machine, is mounted in a frame 5 with one or more partitions 9 and pins 7 to rest in notches 8 on pull-out slide rails 3 on the inside walls of an armoured box 1 with a door 2. Frame 5 has an armoured door 12 giving superficial access to unit components through apertures 18, 19, 20, 21 until opened via lock 17, the frame also being slidable out of box 1 in steps controlled by locks. Box 1 has dispensing apertures 22, 23, 25 at the closed end. For Figures see next page
Patent GB-826271-A (GB)
Title: Improvements in recovery of polymers
Filed: 1957-02-07
Abstract: Normally solid polymers are recovered from a solution of the polymer in a cyclic hydrocarbon by mixing the solution with an open chain hydrocarbon at a temperature at least as high as the upper cloud point of the solution thereby causing the formation of a polymer-rich phase and a solvent-rich phase, separating the p  phases and recovering the polymer therefrom.  The upper cloud point of the solution is the temperature at which the inverse solubility effect, i.e. phase separation, occurs, and which is visible detectable by the solution becoming cloudy.  The preferred polymers are made either by a process using a "Zeigler-type" catalyst or a supported metal oxide catalyst.  Specified polymers are homopolymers of ethylene, propylene 1-butene, 1-pentene and 1,3-butadiene and copolymers of ethylene and propylene, and ethylene and butadiene.  The cyclic hydrocarbon may be cyclohexane, cyclopentane, methylcyclopentane, methylcyclohexane, ethylcyclohexane, ethyl propyl cyclohexane, dimethylcyclopentane, benzene or toluene.  The open chain hydrocarbon may be pentane, hexane, octane, iso-octane, dodecane, tridecane, or cotane.  In a flow diagram, the polymer recovery process is shown in conjunction with a process for preparing a polymer, i.e. polyethylene.