baber/WOPTO huggingface dataset:
Patent GB-1383420-A (GB)
Title: Blower assembly
IPC: F04D29/58
Filed: 1972-05-11
Abstract: 1383420 Centrifugal blowers TORIN CORP 11 May 1972 [22 Sept 1971] 22154/72 Heading F1C A blower assembly comprises an impeller 18 having backwardly inclined blades 34 and a front shroud 32 in sealing relationship at 36 and 38 with a transverse partition 26 which affords a circular inlet opening 28. The air discharged by the impeller is diverted into the axial direction towards a discharge opening 22 having a cross-sectional area at least half that of the inlet 28. The electric driving motor 50 is supported by four diagonal struts (51), Fig. 4 (not shown), and preferably cooled by vanes 46. Casing 10, of preferably rectangular shape, may contain two chambers 12, (14), separated by a partition 16, with a blower assembly in each chamber. A filter 24 spans both chambers. The blowers may be used for cooling computer circuit boards 30.
Patent GB-762810-A (GB)
Title: Method of making serine
IPC: C07C235/02
Filed: 1954-07-29
Abstract: a -Bromo-b -alkoxy-propionamide is made by reacting a  : b -dibromopropionamide with a molecular excess of a metal alkoxide, preferably an alkali metal alkoxide, at 0 DEG  to 40 DEG  C. in the presence of an alcohol as a solvent for the metal alkoxide. Suitably the a  : b -dibromopropionamide, which is prepared by the reaction of bromine with acrylamide, is treated with an alkali metal methoxide at 10 DEG  to 30 DEG  C. in the presence of a saturated aliphatic alcohol.  The product can be converted into serine by heating with more than the molecular equivalent of ammonia at superatmospheric pressure, preferably at a temperature of 70 DEG  to 150 DEG  C. to give a  - amino - b  - alkoxy - propionamide, hydrolysing this by heating with at least 3 molecular equivalents of hydrochloric and/or hydrobromic acid and neutralizing the resulting dl-serine hydrohalide to liberate the free base.  In examples: (1) and (2) acrylamide is brominate, the reaction product is treated with a solution of sodium in methanol followed by treatment with ammonia at 90-100 DEG  C. under pressure to give a -amino-b -methoxy-propionamide which is hydrolysed and adjusted to pH 7 to 8 to give dlserine.  Specification 762,850 is referred to.
Patent GB-1300693-A (GB)
Title: A sugar product
IPC: C13B50/00
Filed: 1971-04-19
Abstract: 1300693 Treating raw sugar SOUTH AFRICAN SUGAR ASSOCIATION 19 April 1971 [29 Jan 1970] 22267/71 Heading C6B A high polarizing raw sugar for use in refining is mixed, e.g. crystals of it are coated, with 0À1 to 4À0% by weight of an invert syrup to reduce the polarization to a value of from 99À5 to 97. The invert syrup, which is defined as a sugar solution containing more than 30% by weight of reducing sugars, may be high-test molasses, or a fully or partially inverted raw sugar solution or raw syrup, A or B or final molasses, or a mixture of two or more of these.
Patent GB-439840-A (GB)
Title: Improvements in closures for bottles and the like
IPC: B65D41/12
Filed: 1934-08-01
Abstract: 439,840. Closures for bottles &c. CHANTRILL, W. E., 45, Henley Grove, Henleaze, Bristol. Aug. 1, 1934, No. 22418. [Class 125 (iii)] In a closure comprising a metal or moulded capsule a, Figs, 42, which grips the mouth of the bottle or the like c and has an upstanding tubular or sleevelike portion d on its upper surface to accommodate the upper part of a cork or other stopping or sealing medium e, the edge b of the capsule is crimped, corrugated or fluted and the upper part of the cork is forced into the sleeve d the lower part projecting below the capsule so as to be inserted into the bottle and gripped by the bite of the bottle-neck.
Patent GB-860900-A (GB)
Title: Conveyor on which a guide for a coal winning device is releasably fixed
IPC: E21C35/12
Filed: 1959-06-30
Abstract: 860,900. Mineral-mining equipment. GEWERKSCHAFT EISENHUTTE WESTFALIA. June 30, 1959 [Aug. 1, 1958], No. 22420/59. Class 68(1). [Also in Groups XXV and XXXII] A guide rail 11 for a mineral-mining machine is resiliently clamped against the side of a conveyer 10 by bolt means 14 extending between the conveyer 10 and rubber bushes 15 bearing on brackets 12, 13 integral with the guide rail 11.
Patent GB-1506288-A (GB)
Title: Production of chlorinated derivatives
IPC: B01J23/12
Filed: 1975-05-23
Abstract: 1506288 Oxyhydrochlorination B F GOODRICHCO 23 May 1975 [22 July 1974] 22441/75 Heading C2C Chlorinated derivatives of ethylene are obtained by oxyhydrochlorination of ethylene or a chlorinated ethylene derivative; separating in a stream from the oxyhydrochlorination any unwanted chlorinated ethylene derivatives and other by-products; injecting the stream into a combustion catalyst bed comprised of 5-20% by weight of UO 3  and 95-80% by weight of Al 2 O 3 , SiO 2  or a mixture thereof, the combustion catalyst having a surface area of #50 sq.m./g. and being non-friable and resistant to attrition; injecting O 2 -containing gas containing #2 moles of O 2  per mole of C in the stream into the bed along with the stream, maintaining the bed at 350-450 C. to produce a mixture of hot combustion gases comprising HCl and being substantially free of Cl 2  and chlorohydrocarbon materials; and recycling the mixture of gases to the oxyhydrochlorination step. The catalyst bed is preferably kept at 350-400 C. and 40-100 p.s.i.g. and is fluidized by injection of the O 2 -containing gas. The catalyst is preferably composed of 5-20% by weight of UO 3  and 95-80% by weight of Al 2 O 3 . The process is particularly suitable for the production of vinyl chloride.
Patent GB-483302-A (GB)
Title: Improvements in or relating to panel securing means in or for aeroplanes and vehicles with sunshine roofs or the like
IPC: B60J7/185
Filed: 1936-08-14
Abstract: 483,302. Sliding panels for vehicles and aircraft; fastenings. MOBBS, R. O. Aug. 14, 1936, No. 22449. [Class 108 (i)] [Also in Groups XXV and XXXIII] In an aeroplane, motor car, or other vehicle provided with a flexible sliding panel, hatch, or the like for use as an emergency exit, roofpanel, &c. co-operating securing and retaining devices, mounted respectively on the panel and a fixed part of the vehicle, are adapted to be engaged or disengaged by flexure of the panel. As shown in Fig. 1, a U-shaped member 22 is attached beneath the panel 20 and is formed with rounded portions 28 adapted when the panel is flexed and moved longitudinally to pass over retaining members 32, 33 provided at the front end 10 of the roofopening. Similar retaining members are provided at the rear end to maintain the panel in the fully open position. In addition to or instead of the parts 28, 32, 33, the front edge of the panel may be formed with a depending web having a beaded edge 38 adapted on flexure of the panel to co-operate with a retaining device 36. In another construction, Fig. 3, a metal plate 44 mounted on a block 42 fixed to the panel is formed with a lug 46 serving as a handle and with ridges 50, 52 adapted to co-operate with retaining means 56. By providing inclined edges on the ridges, on sliding movement of the panel the engagement of the respective inclined edge with the retaining means causes the panel to flex automatically. The panel may be secured by known means in any intermediate position,
Patent GB-501014-A (GB)
Title: Improvements in and relating to helicopters
IPC: B64C27/82
Filed: 1937-08-16
Abstract: 501,014. Helicopters. HAFNER, R., and THOMAS, D. W. Aug. 16, 1937, Nos. 22454/37 and 10839/38. [Class 4] A helicopter includes a rotor constructed to absorb the power supplied to it during flight at a high tip speed and a correspondingly low torque. From one aspect the ratio of torque to thrust of the rotor in stationary hovering has a minimum value 0À09 of its radius. From a second aspect the optimum blade pitch setting for power operation, at least in normal forward flight lies within the autorotational range of pitch settings. From a third aspect, the rotor has blade section and a solidity such that the mean of the minimum torque factors over the working or lifting portion of the rotor disc has a value below 0À09. The torque factor is obtained from the expression [CDP/CL + ¢#CL.#] where CDP and CL are the profile drag and lift coefficients, respectively, and # is the rotor solidity. As shown, the rotor blades 1 are articulated to the hub by flapping and drag pivots and the rotor is constructed in the manner described in Specification 467,589. The aerofoil section chosen of the blades is N.A.C.A23009 and the blades are built with a stressed skin of stainless steel, the general construction being similar to that described in Specification 486,883. The blades are tapered in plan so as to give substantially the optimum lift distribution over the rotor disc and are twisted to keep the mean effective angle of attack correct at each point during flight. The fuselage is shapetl as shown in the Figure, the cross-section at c, c being approximately symmetrically oval, the cross-section being modified towards the nose and tail into unsymmetrical sections which are upwardly directed but oppositely cambered. The blades may, during manufacture, be given a slight inherent upward curvature. The fuselage carries a rudder 8 and a tailplane. Flaps 10, operable by the pilot, are fitted to the fuselage. The rotor is driven, through a jointed telescopic shaft, a freewheel device, and a clutch operable by the pilot and by centrifugal force. The clutch may be arranged in accordance with Specification 447,066 and the drive may be arranged to fracture on jamming of the driving mechanism. The engine drives a fan or blower for drawing engine cooling air through the aperture 12a and discharging it through a similar aperture on the opposite side of the fuselage. The landing gear includes wheels 30 carried on structures 32 pivoted at their roots, to the fuselage, for retraction and a wheel 31 which may be freely castoring. Specification 435,818 also is referred to.
Patent GB-367724-A (GB)
Title: Improvements in and relating to sliding-clasp fasteners
IPC: A44B19/38
Filed: 1931-08-11
Abstract: 367,724. Sliding - clasp fasteners. WOLF, R. and WOLLNER, L., (trading as WOLF & CO.), 331, Prag-Nusle, Czecho- Slovakia. Aug. 11, 1931, No. 22700. [Class 44.] In a sliding-clasp fastener having completely separable stringers 7, 8 in which a pin 2 on one stringer engages a sheath 5 on the other, one of the members 2, 5 has a projection 4 adapted to engage a spring eye 6 on the other to retain the stringers in correct relative position.
Patent GB-393797-A (GB)
Title: Improvements in and relating to colour photography
IPC: G03C7/04
Filed: 1932-08-13
Abstract: 393,797. Colour photography. WECKFORT, A., Hochstein, Rhineland, Germany. Aug. 13, 1932, No. 22755. Convention date, Aug. 14, 1931. [Class 98 (ii).] In multicolour screen plates, films, paper &c., the emulsion is selectively sensitized for the respective colours of the overlying screen elements. The material is produced by applying a sensitive coating to a support, applying elements of one colour, sensitizing for a second colour, applying colour elements of that colour, and then sensitizing for a third colour and applying the elements of that colour. Thus a support 10 is coated with an ordinary blue sensitive emulsion 6 and the blue colour elements 12 are printed thereon in fatty ink ; the coating is then sentisized for green, e.g. by means of pinaflavol, and the green elements 13 are applied, after which the exposed portions are further sensitized for red, e.g. by means of pinacyanol, and the red elements 14 are applied. Yellow may be used instead of green ; or the green elements may comprise an admixture of a permanent yellow colour with a watersoluble blue so as to yield yellow in the positive. A coating 11 of white varnish is applied to the support, below the coating 6, to prevent staining of the support. White elements or spaces may be provided. The material may be printed from a multicolour screen negative, without registration, by slightly spacing the positive and negative and using diffused light or by moving the light, the negative or the positive. To correct for over-sensitiveness, a compensating filter, e.g. a plate or rotary disc of coloured sectors may be employed ; the negative may be coated with a transparent filter layer. Instead of negatives, the material may be printed from a transparent coloured picture &c., with reversal in the case of a positive.
Patent GB-447009-A (GB)
Title: Bathing and strand suit
IPC: A41D7/00
Filed: 1935-08-13
Abstract: 447,009. Waterproof fabrics ; coated fabrics. ELKINGTON, H. D., 20, Holborn, London.-(Hungarian Rubber Goods Factory, Ltd.; 17, Kerepesi-ut, Budapest) Aug. 13, 1935, No. 22822. [Class 140] A strand suit which can be used as a bathing suit is made entirely of air-permeable rubberized fabric, or if desired, the auxiliary parts such as shoulder straps or other fastening means may be made of other material. The fabric used is preferably air-permeable, rubberized, knitted, or woven and knitted woollen, cotton, or silk material. The rubberized fabric can be prepared in any known manner, e.g. by a light impregnation of a fabric with dilute rubber solution or dispersion, and the impregnated fabric may be further treated with water-repellant substances or such substances may be added to the rubber solution before its application to the fabric. The rubberizing may be carried out with foams obtained in known manner from rubber solutions or dispersions, and after application of the desired foam layer, the foam may be dried so as to obtain on the fabric a thin airpermeable sponge layer. Alternatively, the foam layer may be subjected to the action of heat to produce a non-spongy foam layer having a large number of small perforations.
Patent GB-384958-A (GB)
Title: Improvements in and relating to movable resistance contacts for electrical liquid level indicators
IPC: G01F23/36
Filed: 1932-08-15
Abstract: 384,958. Variable resistances. A. C. SPARK PLUG CO., Flint, Michigan, U.S.A. Aug. 15, 1932, No. 22881. Convention date, Aug. 13, 1931. [Class 37.] In a variable resistance for a liquid-level indicator of the electrical type, the cup-shaped contact tip 38, which is slidably mounted on a cranked arm 22 and is pressed against the resistance 26a by a spring 40, comprises a core 42 of conducting material such as phosphorbronze or silver-copper alloy with an outer coating or plating 44 of silver.
Patent GB-441674-A (GB)
Title: Improvements in heat exchange devices
IPC: F28F1/32
Filed: 1935-08-14
Abstract: 441,674. Gilled tubes for heatexchangers. HEUSER, L., 19, Marchenstrasse, Holweide, Cologne, Germany. Aug. 14, 1935, No. 22906. Convention date, Aug. 14, 1934. [Class 64 (iii)] In a heatexchange apparatus comprising ribbed pipes, the ribs b have the outline of equilateral or isosceles triangles and the ribs of parallel pipes are placed edge to edge. The ribs of consecutive rows are preferably located with their apices at the centres of the bases of ribs of a previous row. The pipes are uniformly distributed over the area of the ribs and with their centres located respectively on the bisectors c of the angles of the triangles.
Patent GB-779824-A (GB)
Title: Apparatus for the continuous automatic measurement of the quantity of a certain gas in a gas mixture
Inventor: CELISCEV NIKOLAJ
IPC: G01N7/04
Filed: 1954-08-06
Abstract: <PICT:0779824/III/1> <PICT:0779824/III/2> An apparatus for measuring the quantity of a gas in a mixture e.g. of carbon dioxide in combustion gases comprises an admission chamber (3) in open communication with the atmosphere, a device (7) capable of varying the volume of the gas by reaction of or physical change in one of its components, a gas pump (12) by means of which the gas can be drawn through said admission chamber and said device (7) a valve (11) in the suction pipe of said pump and flow meters (8 and 10) respectively connected between the admission chamber and said device and said device and the pump. The figures in brackets refer to the illustrated embodiment in which the flow meters comprise pressure gauges, the first of which (8) is preceded by an orifice plate 5 and the second of which (10) is a differential pressure gauge which is connected across an orifice plate 9.  In operation, the valve 2 in the supply tube 1 is first turned off and air drawn through the apparatus from the surrounding atmosphere through tube 4 and the reading ha of pressure gauge 8 is noted (zero); the reading Ha on flow meter 10 is also noted.  Valve 2 is then opened and by means of valve 11 sufficient gas is caused to pass through the apparatus as will provide the same value Ha on the pressure gauge 10.  The new reading of gauge 8 is then a direct measure of the gas component affected. During the taking of this reading valve 2 is opened sufficiently widely that some of the gas passes out of the admission chamber 3 into the atmosphere.  In Fig. 2 is shown a suitable device 7: an absorbent liquid such as potassium hydroxide solution is contained in a vessel 19 inside which an open ended cylinder 18 is provided.  This surrounds, but is not in contact with a helical strip 17 attached to a central tube 6 corresponding to tube 6 on Fig. 1.  An orifice 21 provides for bubbles of the gas to be tested passing into the absorbent and these then follow the helical strip and pass upwardly through the absorbent finally passing out of the apparatus through the orifice plate 9 as described in relation to Fig. 1.  A solid absorbent may be used in some cases e.g. phosphorus may be used to absorb oxygen.  The device 7 could also be a combustion chamber with electric heating for use in determining the quantity of hydrocarbons in the gas mixture.
Patent GB-703201-A (GB)
Title: Electrically operated sweepers for carpets and the like
IPC: A47L11/24
Filed: 1952-10-02
Abstract: 703,201. Carpet sweepers. SCHAPIRO, H. Oct. 2, 1951. No. 22934/51. Class 138 (1) An electrically operated sweeper for carpets and the like has at least two brushes moved by power drive means, from which a mechanism common to both said brushes connects to the latter and imparts, respectively, two movements thereto which are different from each other, at least one of the said brushes sweeping dust and like particles into dust receiving means positioned below said mechanism. The machine Fig. 1, comprises a housing 16 having an open bottom in which are pivotally mounted b dust pans 17, 18 by means of adjustable bearings 101. A platform 22 carrying an electric motor 50 and the brush driving mechanism is supported at its four corners from housing lugs 26 by spring urged link pairs 23, 24. The link pairs 23, 24 at each side of the platform are connected by rods 31 secured to a brace bar 40 which has attached thereto a threaded rod 42 co-operating with a threaded sleeve 45 provided with a handle 47. Movement of the handle will facilitate either raising or lowering of the platform to adjust its position relative to the carpets with different piles. The motor oscillates through gears 51, 52, a crank pin 54 on the gear 52, and a resilient connecting rod assembly 66, a lever 55 secured at its lower end on a shaft 61 carried in bearings 60 on the platform. The assembly 66 comprises pins 56, 56A connected by a shock absorbing spring 49. The shaft 61 is connected at its ends by brackets 63 to a brush 19 which is secured by rods 67 to a similar brush 20 connected to another shaft 61 carried by bearings 69 on the platform. The lever 55, Fig. 4 has at its upper end a lateral extension 75 carrying a pin 76 engaging in a slot 78 in one arm of a bell crank 77 pivoted at 79 to a bracket 80 carried by the platform. A slot 82a in the other arm, of the bell crank co-operates with a pin 82 carried by a block 83 slidable in a guide 86 on the platform. A rod 84 keyed to the block 83 carries, by means of further brackets 63 at its ends, a brush 21 disposed between the brushes 19, 20. When the motor 50 is in operation under the control of a switch 95 the lever 55 will cause the brushes 19, 20 to oscillate alternately to the left and right in Fig. 1 and thus cause dust to be deposited in the pans 17 and 18 respectively. At the same time the pin 76, bell-crank 77 and pin 82 will cause the rod 84 and the brush 21 to be reciprocated transversely in the housing and thus loosen dust preparatory to its collection by the action of the brushes 19, 20.
Patent GB-508527-A (GB)
Title: Improvements in and connected with fuel injection in internal combustion engines
IPC: F02M69/00
Filed: 1938-08-03
Abstract: 508,527. Oil engines. DAIMLER-BENZ AKT.-GES. Aug. 3, 1938, No. 22937. Convention date, Aug. 20, 1937. [Class 7 (iii)] In an oil engine in which the air inlet and exhaust ports are controlled by a sleeve valve c, a fuel-injection nozzle is provided in the suction pipe near an inlet port. As shown, fuel is delivered through nozzles i through each of the inlet ports e<4>, e<5> in the valve c towards an igniter g, which may be arranged on one side of the cylinder axis. The valve c may have both a reciprocating and a rotary movement.
Patent GB-883234-A (GB)
Title: Improvements in or relating to herbicidal compositions
Filed: 1959-07-03
Abstract: Ethers of general formula <FORM:0883234/IV (b)/1> wherein R and R1 represent alkyl, alkenyl, alkynyl, cycloalkyl and cycloalkenyl radicals, the total number of carbon atoms in R and R1 being not less than 5 and not more than 12, are made by reacting a hydroxybenzoic ester with a halide of formula R1X where R1 is as above defined and X is a halogen in the presence of a base such as an alkali metal hydroxide, carbonate or alkoxide, or by esterification of O-ethers of hydroxybenzoic acids using first a reagent such as thionylchloride or phosphorus pentachloride to give an acid chloride which is reacted with an alcohol.  Reaction may be conducted in a solvent such as acetone.  Many compounds are listed and numerous preparative examples are given.  Among specified compounds are methyl-4-n-butoxybenzoate, allyl-2-allyloxy benzoate, ethyl 4-(2-butenyloxy) benzoate, cyclohexyl 2-methoxy benzoate, ethyl 4-cyclopentyloxybenzoate and 1-methyl heptyl 2-methoxybenzoate, and some of the specified compounds are stated to be novel.ALSO:Herbicidal compositions comprise a carrier, a surface active agent and a compound of formula <FORM:0883234/VI/1> wherein R and R1 represent aliphatic hydrocarbon radicals such that the total number of carbon atoms in R and R1 is not less than 5 and not more than 12.  A list of specified active ingredients is given in the Specification.  The preparation may be made up as a dust by adding to the carrier material a solution of the compound in a volatile solvent such as ether, acetone or ethanol, drying or milling.  Solid carriers include china clay, bentonite, talc, pyrophyllite, quartz, diatomaceous earth, fuller's earth, chalk, rock phosphate, precipitated calcium phosphate, precipitated calcium carbonate, colloidal silica, and solid artificial fertilizers.  Specified surface-active agents include alkyl sulphates and sulphonates, alkyl benzene sulphonates, sulphosuccinate esters, polyoxyethylene sulphates, polyoxyethylene sorbitan monolaurate, alkylarylpolyether sulphates, alkylaryl polyether alcohols, alkyl naphthalene sulphonates, alkyl quaternary ammonium salts, sulphated fatty acids, esters, and amides, glycerol mannitan laurate, polyalkylether condensates of fatty acids, and lignin sulphonates. The preparations may also be made up as aqueous emulsions using water-miscible solvents (ethylene glycol monoethyl ether, di-ethylene glycol monoethyl ether, acetone, a lower alkanol, dioxan) or water-immiscible solvents (cyclohexanone, summer oils, benzene, toluene, xylene, kerosene or diesel oil).  Humectants such as glycerol, diethylene glycol and calcium lignosulphonate may also be present.  Other known herbicides may also be added to the compositions.