baber/WOPTO huggingface dataset:
Patent GB-303594-A (GB)
Title: Improvements connected with fittings for handles of expansible trunks and the like
IPC: A45C7/00
Filed: 1927-10-25
Abstract: 303,594. Burch, J. B. Oct. 25, 1927. Handles.-Relates to a handle for an expansible trunk, adjustable as to position thereon. The trunk carries a pair of plates A each having a raised centre portion under which is disposed a corrugated plate E, in the corrugations of which ring members D, depending from each end of the handle 0, are adapted to engage. The ring members are held in place by the pressure of two springs, a single blade spring G lying between the arms of a double blade spring F.
Patent GB-1006886-A (GB)
Title: Oxidative self-condensation of phenols
IPC: C07C46/08
Filed: 1963-07-17
Abstract: The invention relates to a process of forming polyphenylene ethers by reacting oxygen with a phenol <FORM:1006886/C3/1> where X is H, Cl, Br or I; R is H or a hydrocarbon or hydrocarbonoxy radical which may be substituted by Ha but not on the two carbons nearest the aromatic nucleus; and each of R1 and R11 is halogen or the same as R, and using as oxygen carrying intermediate a solution of a tertiary amine-basic cupric salt complex. The tertiary amine may be a mixture of a polyamine and an aliphatic mono-amine.  Other features are similar to those disclosed in Specification 930,993 which relates to the same process using a tertiary amine and a curpous salt. Specification 930,992 also is referred to.
Patent GB-713159-A (GB)
Title: Scissors
Inventor: WAHL LEO JACOB
IPC: B26B13/28
Filed: 1952-11-13
Abstract: 713,159. Scissors. WAHL CLIPPER CORPORATION. Nov. 13, 1952, No. 28611/52. Class 30 [Also in Group XXV] In a pair of scissors at least one of the blades has plastic material moulded thereon at the pivot, and a screw which holds the blades together has a portion of substantial length threaded into the plastic material of said one blade and a head engaging the other blade. The metal blades 5, 6 are embedded in respective handles 11, 12 of plastic such as poly chlorostyrene or phenol formaldehyde. The material of handle 12 forms a boss 19 projecting through a circular hole 16 in blade. 6 and partly through an aligned circular hole 15 in blade 5 to form a pivot for the latter. A headed screw 22 passes with clearance .through a hole 23 in the material of handle 11 covering hole 15, and screws into the boss 19. The screw may be of the selftapping kind. The arrangement provides for adjustment of the pressure between the blades and for ready separation of the latter.
Patent GB-1134730-A (GB)
Title: Thiophosphoric acid-o,o,s-triesters
Inventor: WOLF FRIEDRICH
IPC: A01N57/12
Filed: 1967-06-21
Abstract: 1,134,730. N,N<SP>1</SP> - Alkylene - bis - (O, O- dialkyl phosphoryl mercapto acetamides). FARBENFABRIK WOLFEN VEB. 21 June, 1967, No. 28675/67. Heading C2C. [Also in Division A5] Novel thiophosphoric esters of the formula wherein R is an alkyl group containing up to 4 carbon atoms and n is 1 or 2 are obtained by reacting a compound (RO) 2 P(O)SM in which M is an alkali metal or an ammonium group with a compound of the formula The reaction is preferably effected at from 20‹ to 100‹ C. expediently in an inert organic solvent, e.g. acetonitrile. The products have pesticidal properties.
Patent GB-705334-A (GB)
Title: Improvements in flat cards
IPC: D01G15/76
Filed: 1951-12-07
Abstract: 705,334. Carding-engines. KULMBACHER SPINNEREI. Dec. 7, 1951 [Sept.. 28, 1951], No. 28760/51. Class 120(1) A flat card having a doffing and transfer roller w provided with card clothing for removing the "flat strips" at the licker-in side thereof and conveying them to the fleece of raw material, is characterized in that roller w co-operates with a cleaning grid r for stripping off and conveying away impurities, the distance of the grid from roller w being adjustable. As shown, grid r has a beak n located below roller wand is adjustable about a pivot g; impurities passing through the grid are collected in a receptacle t located over the licker-in 1. Roller w, which is adjustable with respect to flats f and cylinder c, is covered with steel wire or saw-tooth clothing and rotates at a surface speed greater than that of flats, f but less than that of cylinder c.
Patent GB-891581-A (GB)
Title: Therapeutic alkaloid principle from pleiocarpa species
IPC: A61K36/24
Filed: 1960-08-19
Abstract: The invention comprises a hypotensive alkaloid principle consisting of a purified extract of the root or bark of plants of the species Pleiocarpa, particularly P. mutica, its salts with pharmaceutically acceptable anions, and a process for the preparation of the principle or a concentrate containing it by extracting the sub-divided root or bark of P. mutica with a lower alkanol and concentrating the purified extract.  The hypotensive principle in the form of its nitrate salt is characterised by ultraviolet absorption maxima in 0.1 N methanolic HCl at \sU 273 and \sU 305mm , a minimum at \sU 250mm  and infra red absorption maxima at 3, 3.4, 5.8, 6.2 and 7.3 m , also by an Rf value of 0-0.2 when applied to calcium acetate treated paper in a mixture of equal volumes of toluene and acetone equilibrated with 2% aqueous calcium acetate.  Purification is preferably achieved by washing an aqueous solution of the extract at pH between 8 and 11 with a chlorinated hydrocarbon, extracting the washed aqueous solution with a water-insoluble lower alkanol, concentrating the solvent extract and precipitating the alkaloid concentrate as the free base or a salt.  Counter-current solvent distribution and ion-exchange methods are also used.  Detailed examples are given. A comparative example illustrates the extraction of P. mutica with water instead of an alkanol.  Specification 601,321 is referred to.ALSO:Therapeutic compositions having a hypotensive action comprise an alkaloid principle (which may be in the form of an acid addition salt) isolated from a plant species of the genus Pleiocarpa together with a non-toxic carrier.  The compositions may be administered by conventional methods e.g. intravenously or orally, and examples detail the effect upon the arterial blood pressure of laboratory animals.
Patent GB-1195153-A (GB)
Title: Oriented Polyethylene Terephthalate Films.
IPC: C08L67/02
Filed: 1968-06-17
Abstract: 1,195,153. Oriented polyethylene terephthalate films. LA CELLOPHANE. 17 June, 1968 [8 Aug., 1967], No. 28784/68. Heading C3R. Into polyethylene terephthalate is incorporated 0À01-5%, by weight of the polyethylene terephthalate, of a thermoplastic polyamide or polypropylene having a melting-point not above that of the polyethylene terephthalate and the mixture extruded to form a film, the film then being oriented biaxially by stretching in two directions. The polyamide may be derived from caprolactam (Nylon 6), from hexamethylene diamine and adipic acid (Nylon 66), from hexamethylene diamine and sebacic acid (Nylon 610), from amino-undecanoic acid (Nylon 11) or amino-dodecanoic acid (Nylon 12), or may be a polyamide mixture. The polymers may be mixed in granular form before extrusion of the film, or polycondensation of the polyethylene terephthalate may be performed in the presence of the other polymer. Biaxially oriented films according to the invention may be used in electrical condensers (film thickness 2À5-25 microns) or as a support for magnetic tape (thickness 20-125 microns, or 5-40 microns if there is a higher orientation in one direction than in the other).
Patent GB-519229-A (GB)
Title: Improvements in and relating to the photo-electric recording of variations in the chemical composition of a substance
IPC: G01N21/86
Filed: 1938-10-04
Abstract: 519,229. Photo-electric tests. COURTAULDS, Ltd., and THOMAS, R. S. Oct. 4, 1938, No. 28799. [Class 40 (iii)] Relates to systems of testing chemical substances of the kind in which the substance, for example, hydrogen sulphide, is brought into contact with another substance, for example. lead acetate, coated on or impregnated in a moving strip of material whereby a change of colour is produced, which change is detected by passing the strip between a source of light and a photo-electric cell, the output of which is amplified and indicated and recorded by a milliammeter which may be graduated to give directly the content of the hydrogen sulphide in parts per million. Whatman No. 1 filter paper has been used for the strip. According to the invention, a transparent film of cellulose or cellulose derivative, for example, the material sold under the Registered Trade Mark " Cellophane," is used for the strip.
Patent GB-176828-A (GB)
Title: Improvements in composite mats for making printing plates, sound records, and the like
IPC: B41C3/06
Filed: 1920-10-12
Abstract: A condensation product of phenol or cresol and acetaldehyde or paraldehyde is used as an adhesive.  In the manufacture of the condensation product the preferred proportions are 100 parts of phenol to 75 parts of acetaldehyde with a mineral acid and nigrosine or zinc chloride as catalysts; or 100 parts of phenol and 35 of the aldehyde may be used and after the elimination of the acid catalyst the mass is hardened by the addition of a solution of sodum bisulphite in acetaldehyde.ALSO:Fibrous material such as card-board or woven fabric is impregnated and coated with a condensation product of phenol or a cresol and acetaldehyde or paraldehyde.  In the manufacture of the condensation product the preferred proportions are 100 parts of phenol to 75 parts of acetaldehyde with a mineral acid and nigrosine or zinc chloride as catalysts; or 100 parts of phenol and 35 of the aldehyde may be used.  After the elimination of the acid catalyst the mass is hardened by addition of a solution of sodium bisulphite in acetaldehyde.
Patent GB-1520482-A (GB)
Title: Fluid shear device
IPC: B01F5/00
Filed: 1975-07-09
Abstract: 1520482 Mixing; centrifugal separator ONTARIO RESEARCH FOUNDATION 14 July 1976 [9 July 1975] 28938/75 Headings B1C and B2P  Gases are separated from liquids or a liquid is mixed with a further liquid, a gas or a powder in a chamber 10 comprising a front wall 14 or 14' extending perpendicularly to the central axis 12 of the chamber, an outlet 16 which together with the front wall defines a sharp corner 18, a rear wall 22 having a first portion 40 or 24 extending parallel to or at an acute angle to the front wall and a second portion 42 or 26 extending at a greater angle to the front wall than the first portion and at least one tangential inlet 27 disposed in the peripheral wall 20 of the chamber. During separation of a gas from a liquid, the liquid-gas mixture is injected through an inlet 27 and the gas collects in the core of the chamber which is connected to a vacuum pump via the outlet 16 or via a centrally disposed tube 28. Alternatively the device may be placed coaxially in a round container (57) (Fig. 4 not shown) with their common axis vertical. The rotation of the liquid discharged from the device induces a similar rotation in the container creating a low pressure area along the common axis through which the separated gas rises. Materials to be mixed are premixed and fed into the chamber through one inlet 27 or they are fed into the chamber separately through different inlets or one of the further liquid, gas or powder is fed into the chamber through a central core and the liquid is fed into the chamber through a tangential inlet. Three chambers each having a rear wall (82) (Figs. 6 and 7 not shown) formed in a removable plug (84) may be arranged with their tangential inlets (38) receiving fluid from a common manifold (68) and with their outlets (76) passing into a common pipe (70).
Patent GB-789031-A (GB)
Title: Improvements in and relating to permanent magnet alternators
Inventor: GAYLER GEORGE ALFRED
IPC: H02K1/27
Filed: 1955-10-11
Abstract: 789,031. Ignition generators. WIPAC DEVELOPMENT, Ltd. Sept. 25, 1956 [Oct. 11, 1955], No. 28972/55. Class 35. A flywheel generator, particularly for ignition has permanent magnets disposed about the flywheel rim which is connected to its hub by a number of steel arms equal to half the number of magnets, the arrangement being such that the extremities of all the arms are polarized to the same polarity. As shown, polepieces 12, 13 of North and South polarities respectively and magnets 11 have the non-magnetic rim 10 cast about them and a steel plate welded to the hub has four arms 17 riveted to the polepieces 12.
Patent GB-748381-A (GB)
Title: Improvements in gloves and thumb-stalls
IPC: A41D19/00
Filed: 1953-10-21
Abstract: 748,381. Gloves; thumb-stalls. SWAN, HUNTER & WIGHAM RICHARDSON, Ltd., and OLIVER, G. Oct. 21, 1954 [Oct. 21, 1953], No. 29095/53. Class 141. A glove or thumb-stall, particularly for wear by workmen using chipping tools, drills, &c., is provided with a guard member attached to or in one with its thumb portion so that, in use, it projects upwardly and deflects dust and flying pieces from the face of the wearer. The guard member may be of angular outline, but preferably comprises a rigid extension a, Fig. 2, of segmental shape extending along the length of the thumb b. It may be formed integrally with the glove or made separately and provided with flanges c for attachment to the back of the thumb portion. The guard member may be stiffened by an internal plate d, and may be made of transparent material.
Patent GB-445565-A (GB)
Title: Mixed polyvinyl resins and method of making same
IPC: C08F8/28
Filed: 1934-10-11
Abstract: Synthetic resins are manufactured by reacting a partially or completely hydrolyzed polyvinyl ester successively with a plurality of different aldehydes or bodies giving rise thereto, in the presence of a solvent and an acid as catalyst.  The condensations with the aldehydes may take place either simultaneously with or sequentially to the hydrolysis of the polyvinyl ester.  The products may be used in moulding compositions and for the production of films.  In examples: (1) polyvinyl acetate is dissolved in butyl alcohol and acetate and heated with sulphuric acid and acetaldehyde and then with paraformaldehyde; (2) polyvinyl acetate is reacted as in (1) with formaldehyde first and then with acetaldehyde; (3) the acetaldehyde in (2) is replaced by benzaldehyde.  Three or more aldehydes may similarly be employed, successively in any combination or order, e.g. two aliphatic aldehydes may be used together followed by an aromatic aldehyde, alone or with another aromatic aldehyde or with an aliphatic aldehyde which may be the same as one of those used in the first stage, or the aromatic aldehyde or aldehydes may be used together in the first stage, alone or with one or more aliphatic aldehydes.  In place of polyvinyl acetate there may be used other polyvinyl esters of fatty acids, e.g. the butyrate or propionate, in place of the sulphuric acid any other mineral acid, and in place of the solvents specified, any other suitable solvent, e.g. ethyl alcohol, acetone, ethyl acetate, amyl acetate or mixtures thereof. Specifications 351,082 and 403,750 are referred to.
Patent GB-171096-A (GB)
Title: Improvements in or relating to electric furnaces
IPC: F27D11/02
Filed: 1921-11-02
Abstract: 171,096. Hansen, I. J. Moltke-. Nov. 3, 1920, [Convention date]. Resistance furnaces. - An electric furnace which may be used to heat chemical apparatus is provided with channels containing a granular resistance material, the channels communicating in pairs at the top through a reservoir to which more resistance material may be supplied and the electrical connections being made at the bottom of the channels. The resistance material may be granular electrode carbon passed through a sieve of from 11 to 25 meshes per inch. Fig. 2 shows an iron pot 1 for melting caustic soda encased in a structure 6 of solid or hollow brickwork or heat insulating material. The horseshoe-shaped channels 2, 3, 4 are fitted with the granular resistance material and insulated from the pot 1 by soapstone 5. Three-phase alternating current is supplied to iron conductors arranged at the bottom of the channels. The conductors may be made of wire cloth so that on stirring the resistance any ashes formed fall through the cloth into a space underneath. In a modification, there are six sets of channels forming two sets of three resistances. Both sets are connected delta fashion and when the desired temperature is reached, one set is star connected or cut out. The tube furnace shown in Fig. 3 may be used for the production of sodium superoxide by heating sodium in aluminium trays in an oxygen bearing atmosphere to 300‹ C. The oxidation air may be preheated in a separate furnace or by passing the air through channels in the bottom of the furnace. The tube 10 is provided with insulating bars 5 and enclosed in a brickwork 11. There are 9 horseshoe-shaped channels fitted with resistance material 2 and connected so as to form three sets of elements for three-phase current. Fig. 5 shows an arrangement in which the elements I, II, III are delta connected. To lower the temperature of the furnace tube, the element II is star connected or cut out. If the high temperature is desired in the front of the tube and the centre, the element III is star connected or cut out. According to the Specification as open to inspection under Sect. 91 (3) (a) the invention is applicable to electrical steam boilers, to coking, and dry distillation and evaporation apparatus. In the arrangement shown in Fig. 3. the legs of the horseshoe may diverge at the bottom and may be insulated from one another by a hollows space in the brickwork or by aluminium nitride bricks. The heat insulating material 6 surrounding the resistance may be kieselguhr and the soapstone 5 may be replaced by carborundum. This subject-matter does not appear in the Specification as accepted.
Patent GB-915679-A (GB)
Title: Gas-cooled electrical machine mounted upon vibration dampers
Inventor: BOBEK KARL
IPC: H02K5/24
Filed: 1960-08-23
Abstract: 915,679. Machinery mountings. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. Aug. 23, 1960, No. 29131/60. Class 80 (4). [Also in Group XXXV] In a hydrogen-cooled dynamo-electric machine, the hydrogen supply equipment and the necessary supervisory apparatus are assembled together with the machine in a rigid unit, and the whole assembly mounted on vibration dampers. The hydrogen supply cylinders may be installed in the enlarged machine casing and the required auxiliary apparatus installed in or upon the casing.
Patent GB-1409414-A (GB)
Title: Beverage dispenser
IPC: F16K23/00
Filed: 1971-06-22
Abstract: 1409414 Valves R KOFFLER 21 Sept 1972 [22 June 1971] 29162/71 Heading F2V A container 4 for dispensing beverage concentrates 4 comprises a valve body 1 and a plunger 5 which is displaced into the blind end of a chamber 6 to bring a supply passage 5 into communication with outlet passages 7 and 9. The plunger is displaced by means of a solenoid acting on a cap 12. The solenoid is controlled by a time switch. The plunger is returned to its closed position by the vacuum created in the container 4 and by a spring 19 surrounding a rod 11. The rod is guided in a spider 15. As the plunger returns to its closed position, suction created in the outlet passages 7 and 9 prevents dripping. The body 1 is made of polyethylene and is integral with the container 4 which is also made of polyethylene. Alternatively the body has a reduced diameter portion for insertion in a container.
Patent GB-208306-A (GB)
Title: Improvements in or connected with haulage gear engines and the structures supporting such engines
IPC: B66D1/08
Filed: 1922-10-27
Abstract: 208,306. Ashton & Co., Ltd., D., and Davenport, C. Oct. 27, 1922. Winches.-One of the end standards A supporting the drum shaft a of a motor winch driven by a pair of oscillating - cylinder engines, preferably arranged as twin diagonal engines, is used to support the engine and also is holed to provide a valve chest and passages d, d<1> for the supply fluid and d<2> for the exhaust fluid ; the engine cylinder being mounted upon trunnions one of which is spring pressed in an axial direction and engages the end standard directly, while the other engages a bow-shaped member f bolted to the standards. Corresponding faces are machined on the oscillating cylinders and on the standard to allow the parts to communicate with the cylinders through the valve chest. Manipulation of the " D " slide valves c by the lever c<2> causes the engine to run in either direction, the mid-position of the lever being the " off " position. Specifications 1355/13 and 207,011 are referred to.
Patent GB-722181-A (GB)
Title: Automobile servicing equipment
Inventor: CLAIR CAMILLE CLARE SPRANKLING
IPC: B66F7/02
Filed: 1950-11-29
Abstract: 722,181. Dispensing liquids. TECALEMIT, Ltd. Dec. 31,1951, [Nov. 29, 1950.] No. 29288/50. Class 116. [Also in Group XXX] A vehicle hoist has two casings 14, 15 each housing two lubricant pumps dispensing grease under pressure to delivery hoses 17, 19. The space between one pair of pumps may house a mobile receptacle for drained oil. The casings may also house reels. for hoses connected to sources of supply of oil, air/oil mixture and compressed air.
Patent GB-1470242-A (GB)
Title: Method and installation for the treatment of waste water
IPC: B03D1/24
Filed: 1974-07-02
Abstract: 1470242 Waste water treatment SWISSAIR SCHWEIZERISCHE LUFTVERKEHR AG 2 July 1974 [13 July 1973] 29288/74 Heading C1C Industrial waste water is purified by successive (i) chemical flocculation, (ii) electro-flotation of the turbid flocculated material, and (iii) reverse osmosis of the clarified liquor. Step (i) may comprise addition of ferric chloride, ferric sulphate or aluminium sulphate, and may be preceded by buffering. In step (ii), floated sludge may be removed with a skimmer, and the clarified effluent passed first through a compressed sand filter. The apparatus for step (iii) may comprise modules containing wound cellulose acetate membranes in pressure tubes, and the purified water therefrom may be degasified in a scrubber.
Patent GB-967539-A (GB)
Title: Electric generator voltage regulation systems
IPC: H02J7/24
Filed: 1963-07-25
Abstract: 967, 539. Automatic voltage control. GENERAL MOTORS CORPORATION. July 25, 1963 [Aug. 6, 1962 (2)], No. 29503/63. Heading G3R. [Also in Division H3] A voltage regulator for an electric generator includes a controlled rectifier which is adapted to be switched on and off by a signal applied to its gate electrode and which is connected so as to control the field current of the generator. As shown a voltage regulator for an A. C. generator 10 supplying a load, including a battery 24, over a bridge rectifier 16 comprises a first controlled rectifier 36 connected in series with the field winding 14 of the generator, a second controlled rectifier 42 having its gate electrode connected to an output voltage sensing circuit constituted by a voltage divider 56, 58, 60, a Zener diode 64 and a resistor 48, and a capacitor 40 connected between the gate electrode of controlled rectifier 36 and the anode of controlled rectifier 42. When a manually operated switch 32 is closed, the controlled rectifier 36 is turned on by the charging of capacitor 40 and the field winding 14 is energized so that the output voltage may build up to a desired value determined by the setting of variable resistor 58. If this predetermined value should be exceeded, Zener diode 64 breaks down to render controlled rectifier 42 conductive whereby capacitor 40 is connected to earth and discharges through the cathode-gate circuit of controlled rectifier 36 which is thus switched off to de-energize the field circuit; the controlled rectifier 36 returns to its conductive state when the output voltage falls below the predetermined value, and the output voltage is thus maintained substantially constant by the continuous switching action. A tunnel diode may replace the resistor 48, to provide a sharper switching action (Fig. 2, not shown). The conduction of the controlled rectifier may be controlled by a Zener diode and a transistor (Fig. 4, not shown), or by a four-layer PNPN diode (Fig. 5, not shown). An embodiment including two capacitors associated with two controlled rectifiers is described with reference to Fig. 6 (not shown).