baber/WOPTO huggingface dataset:
Patent GB-638778-A (GB)
Title: Improvements in letter-sheets
IPC: B42D15/08
Filed: 1948-05-31
Abstract: 638,778. Letter-sheets. JOHANSSON, 1. M. May 31, 1948, No. 14716. [Class 146 (ii)] A letter-sheet which forms an envelope comprises a rectangular paper sheet provided with longitudinal folding lines A, B, a bottom margin E which folds upwards over a part of the paper, a transverse fold C, an oblong gummed flap D arranged at the sheet portion limited by the lines A and C, a gummed flap F constituting an extension of the bottom margin E, and a thread G disposed longitudinally of the oblong flap D.
Patent GB-1176654-A (GB)
Title: Decomposition of Formic Acid.
Inventor: COFFEY ROBERT STEVENSON
IPC: C07C51/487
Filed: 1966-04-04
Abstract: 1,176,654. Purification of aliphatic acids and esters. IMPERIAL CHEMICAL INDUSTRIES Ltd. 28 March, 1967 [4 April, 1966], No. 14845/66. Heading C2C. In a mixture containing formic acid and another aliphatic acid or ester the formic acid is decomposed by contacting with a complex compound of a metal of a Group VIII (Mendeleef) metal or rhenium, soluble in the mixture during the process. Complex compounds are introduced preformed or as a ligand e.g. p, sec., or tert. phosphines or amines and alkyl, aryl or cycloalkyl phosphites, sulphoxides, or sulphones with a salt, such as a halide, nitrate, or carboxylate. A preferred complex is IrH 3 (PAr 3 ) 3  where Ar is phenyl or substituted phenyl, and many others are specified. Temperatures above 100 C. may be used, dependant upon the solubility of the complex, and solvents and bases may be added. Examples describe the treatment of mixtures of acetic and formic acid, and formic acid and n-octyl formate using numerous complexes.
Patent GB-698803-A (GB)
Title: Improvements in or relating to a kitchen implement for forming shaped objects from edible plastic material
IPC: A47J19/00
Filed: 1950-06-14
Abstract: 698,803. Potato &c. squeezers and shapers. WILSON, J. J. April 4, 1951 [June 14, 1950], No. 14854/50. Class 28 (ii). A kitchen implement for forming shapes from edible plastic mixes such as creamed potatoes, dough, sugar icing &c. comprises a container 1 from which the mixture is extruded through a die plate 6 by means of a pivotally mounted pressure plate 9. The mix is extruded at a greater rate at the forward end of the die-plate and is hence caused to curl over and be deposited on a rear extension 8 of the die-plate. The die-plate 6 is interchangable and slides under flanges 5 attached to the container 1. The pivot pin 10 of the pressure plate 9 is removable. Pressure is applied to the plate 9 by means of a lever 11 under the handle 4, the lever being hinged either to the handle or to the plate 9.
Patent GB-144470-A (GB)
Title: Improvements in belt transmission mechanism
IPC: F16H7/02
Filed: 1919-06-12
Abstract: 144,470. White, A. E., (Chicago Flexible Shaft Co.). June 12, 1919. Fast and loose pulleys 31a, 32<a> are arranged to be moved axially with a driven shaft 13 so that a driving-belt 12 may remain in one plane. The belt is restrained by guides 21, 30. The axial movement is imparted to the shaft 13 by turning a sleeve 45 having a helical slot 47 through half a turn. This is done by means of a cord 51, weight 56, and pin and slot 54, 53.
Patent GB-570302-A (GB)
Title: Improvements in or relating to the retreading of tyres
IPC: B29D30/54
Filed: 1943-09-10
Abstract: 570,302. Vulcanizing tyres. UNION RUBBER WORKS, Ltd., and LLEWELLEN, J. A. W. Sept. 10, 1943, No. 14890. [Class 70] Tyres are retreaded or repaired by the use of a device which forms in conjunction with the tyre, a pressure chamber surrounding the new material to be vulcanized, but which is not in contact with this new material. In a simple form, the device consists of a ring with inwardly extending flanges, one of which may be detachable, which surrounds the tyre, bearing on the shoulders and enclosing the tread in a chamber into which steam or other heating medium is introduced. The device illustrated consists of a back plate 12 with rim 13 and lid 14 provided with sealing means such as an airbag 15. A tyre 4 on a carrier which may be a wheel, is mounted on a central spindle 19 and the lid 14 is closed by a screw 18 and handwheel 21, before or after the tyre is inflated, pressing the side walls between itself and the back plate 12, and forming a vulcanizing chamber 1a. The rim 13 may be of such a depth as to accommodate more than one tyre.
Patent GB-1168025-A (GB)
Title: Improvements in or relating to Drive Transmission Mechanisms for Road Rollers
IPC: E01C19/28
Filed: 1968-03-28
Abstract: 1,168,025. Road rollers. B. BEIERLEIN and U. BEIERLEIN. 28 March, 1968 [28 March, 1967], No. 14904/68. Heading B7H. In a pedestrian-operated road roller having a vibrator 72 rigidly supported on tandem rollers 1, 2 by frame side plates 7, an electric motor or I.C. engine 6 resiliently mounted on the side plates 7 drives the rollers through means providing a flexible connection between the engine 6 and worm gearing arranged to transmit the drive to the rollers. Worm-wheels 10, 20 on the roller shafts 11, 21 mesh with worms 31, 32 on a common drive shaft carrying a worm-wheel 30 meshing with a worm 50 driven through a universally-jointed shaft 51 from a gear-box 5 which is coupled by drive means 60 to the engine 6 and includes reduction gearing and reversing gear controlled by a lever 52. The engine 6, gear-box 5 and a steering handle 73 are mounted on a platform 71 supported from the side plates 7 through resilient element 70. In another embodiment, Fig. 3 (not shown), separate hydraulic motors for driving the vibrator 72 and the drive shaft 3 are connected through flexible conduits and a distributer valve to a pump driven by the engine 6.
Patent GB-998125-A (GB)
Title: Method of welding tubing to a surface and a welded assembly of tubing and a surface
IPC: B23K11/00
Filed: 1962-04-17
Abstract: 998,125. Making heat exchangers; welding by pressure. E. E. GENTRY. April 17, 1962 [April 19, 1961], No. 14907/62. Headings B3A and B3R. In securing tubing having a continuous annular upset portion thereon to a surface, the surface being parallel to the axis of the tubing, the upset portion is welded to the surface. In making heat exchanger elements for refrigerators &c. tubing 12 having upset portions 12a is welded to a plate 14 by supplying current from a transformer 18 to the portions by electrodes 16, 17 and providing a back-up bar 20 beneath the plate. In one modification one electrode engages the upper surface of the plate and the other engages the upset portion and in another the back-up bar is connected to one side of the transformer and a roller electrode 22, Fig. 4, connected to the other side, is moved along the tubing to engage the upset portions. The back-up bar may be omitted and one electrode engages the upset portion while the other engages the under side of the plate. The tips of the electrodes may fit the contour of the upset portions.
Patent GB-429964-A (GB)
Title: Improvements in and relating to safety razors
IPC: B26B21/38
Filed: 1934-05-17
Abstract: 429,964. Safety razors. GOLDSCHMIDT, R., 57, Westbourne Terrace, London. May 17, 1934, No. 14962. [Class 30] [See also Group XXXV] In an electromagnetic vibratory motor, for setting a safety razor A in vibration as a whole the energizing coil V is mounted on the vibratory armature U, to increase the mass of the latter. The motor comprises an iron body-part S clipped to, or carried inside the handle B, and having a curved polepiece W, covered by an insulator O, and constituting an anvil which is struck by the vibrating armature V. The latter is mounted on a blade-spring K on an insulating-disc T, and conducts current to the coil V through a make-and-break M.
Patent GB-346204-A (GB)
Title: Improved cooling water conduction in the cylinder covers of internal combustion engines
IPC: F02B3/06
Filed: 1930-05-15
Abstract: 346,204. Cooling cylinders. KRUPP GERMANIAWERFT AKT.-GES., F., Gaarden, Kiel, Germany. May 15, 1930, No. 14968. Convention date, May 27, 1929. [Class 7 (ii).] A cylinder head contains a water chamber B which communicates with a jacket C by uniformly distributed annular orifices F, the total cross - sectional area of which is substantiallv less than that of the exit G for the water. The size of the orifices F may be adjusted by replaceable plugs J. The water enters by a pipe E and in a multicylinder engine, the water circulates through at least two cylinder jackets in parallel, and then through the corresponding head jackets in series.
Patent GB-905628-A (GB)
Title: Improvements in methods of polymerising unsaturated organic compounds
IPC: C08F4/28
Filed: 1959-05-01
Abstract: Ethylenically unsaturated compounds are polymerized in the presence of an organic peroxide, a tertiary amine and a triester of phosphorous acid.  The monomer may be an ester of acrylic or methacrylic acid.  The triester may be tris-(b -chlorethyl) phosphite or tris-octyl phosphite.  The tertiary amine may be dimethyl aniline or diethyl aniline.  The peroxide may be benzoyl peroxide.  The polymerizable composition may also contain finely divided polymer of the monomer to be polymerized, ultra-violet light absorbers, e.g. 2,4-dihydroxybenzophenone, and other co-catalysts and accelerators.
Patent GB-1368193-A (GB)
Title: Rotary cutting tool
IPC: B24D13/10
Filed: 1972-03-30
Abstract: 1368193 Milling cutters V S SALUKVADZE 30 March 1972 14987/72 Headings B3K and B3D  A milling cutter comprises at least one group of flexible cutting elements la, Fig. 1, secured at their inner ends and separated at their outer ends. The elements flex during cutting so as to take up the clearance #, and the elements abut each other so as to increase the cutting force. The amount of deflection may be restricted by the use of stops (5) or (6) Figs. 4 and 5 (not shown). Gaps # may be filled with polyethylene. The cutting elements may be flexible plates, or flexible rods, which may be tipped by high speed cutting material, or by an abrasive material. In a modification, each cutting element is formed by an abrasive material faced with two flexible plates. A cutter for machining surfaces with deep recesses comprises three staggered groups of flexible cutting elements I, II and III, Fig. 11, all of which are secured together at their inner ends. In a further modification, the cutter of Fig. 12 comprises three groups of flexible cutting elements having cutting edges of lengths b 1  and b 2 , the elements being secured together at their inner ends. Any of the cutting elements may be corrugated along its length; such corrugations can be arranged parallel with the cutter axes and also normal thereto. The cutter of Fig. 15 has each cutting element 22 formed by two flexible corrugated plates separated by an abrasive material. The cutter of Fig. 20 has groups of flexible rods I-XIV forming the cutting elements. Other cutters are described, and the specification includes formulae for determining the length L of the cutting elements.
Patent GB-860138-A (GB)
Title: Precision linear dimension measuring instrument
IPC: G01B3/22
Filed: 1958-05-09
Abstract: 860,138. Dial gauges; indicating apparatus. MAHR, C. May 9, 1958 [Sept. 12, 1957], No. 15000/58. Classes 106 (2) and 106 (4). A dial gauge has a lever system 3, 5 to transmit movements of the plunger 1 to the indicating pointer P, and means, in the form of a projection 17 eccentrically mounted on a pin 4, to vary the effective leverage of the system. The projection 17 which has a hemi-spherical head, is mounted on the lever 3 and abuts against a shoulder 16 on the second lever 5. It is turned by means of a squared head 18.
Patent GB-996743-A (GB)
Title: Process for the production of pigments of the dioxazine series
IPC: C09B19/02
Filed: 1963-04-17
Abstract: Dioxazine pigments are made by heating to at least 100 DEG  C. a stirrable mixture consisting substantially of one or several water-soluble non-oxidizing inorganic salts, the aqueous solution of which is not alkaline, and of optionally further substituted 2 : 5 - bis - (21 - alkoxy - phenylamino)-, 2 : 5 - bis - (21 - cycloalkoxy - phenylamino)-, 2 : 5 - bis - (21 - benzyloxy - phenylamino)- or 2 : 5 - bis - (21 - phenoxy - phenylamino) - 1 : 4 - benzoquinone, the weight ratio of salts to benzoquinone being about 10 : 1 to 1 : 2. Organic solvents and an acid condensing agent may also be present. Examples are given.
Patent GB-550379-A (GB)
Title: Improvements in or relating to the treatment of carbon bodies to improve the hardness, density and electrical conductivity thereof
IPC: H01R43/12
Filed: 1941-11-21
Abstract: 550,379. Carbon brushes, resistances &c. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Nov. 21, 1941, No. 15015. Convention date, Nov. 23, 1940. [Class 90] [Also in Group XI] Carbon .brushes, resistance plates, crucibles and other carbon bodies consisting of graphite or prepared by heat treatment of non-graphitic carbon to produce a substance consisting wholly or mainly of graphite have the hardness, density and electrical conductivity increased by heattreating at a non-graphitizing temperature in a hydro-carbon gas atmosphere to deposit non- graphitic carbon within the pores of the body. In an example, a mixture made from lampblack, coke, charcoal, graphite &c. is bonded with pitch, tar, resins &c., made into slugs and carbonized by heat, pulverised, bonded again and again pulverised, made into a bar or plate under pressures varying from 1,000 to 20,000 pounds per square inch and carbonized at temperatures up to 1,204‹C. Graphitization is then effected by heating to temperatures between 1648 and 3037‹C. Thereafter the treatment in hydrocarbon gas is effected. Gases mentioned are methane, propane, butane, Pennsylvania natural gas and volatilized oils, petroleum, waxes &c. The Figure shows an electric heating arrangement for carbon plates 10.
Patent GB-615674-A (GB)
Title: Improvements in or relating to carburettors
IPC: F02M1/00
Filed: 1946-05-17
Abstract: 615,674. Spray carburetters. HEYMERING, S. G., and HOEVE, A. J. T. May 17, 1946, No. 15060. [Class 7 (iii)] In a carburetter having a block 4 situated in a rectangular air intake passage 1 carrying the fuel jets 15, 16, 17, a capillary member 11 connects the channels 15<1> leading to the jets with the fuel supply channel 7, connected to fuel delivery and return pipes 8, 9, through which a continuous flow of fuel is pumped; leaf springs 18, 19, preferably of beryllium copper, controlled by rotatable arms 35, 36 and opened by the air flow, form adjustable venturis with the sides of the block 4. The block is of isosceles triangle shape and has grooves 12, 13, 14 for the jets. The arms 35, 36 are rotatable simultaneously by inter-connected cranks 37, 44 connected by a link 43 to a bell-crank 42, 40 rotatably mounted on the throttle valve spindle 41 and operated by a Bowden wire 39. A tension spring 48 normally holds the crank 40 so that the arms 35, 36 are in the slow-running position shown in Fig. 3 with the leaf spring 19 held closed and spring 18 free to open, the jet 15 delivering a weak mixture. At higher powers, the spring 18 is progressively closed by the arm 35 and spring 19 allowed to open a richer mixture being produced by the jets 16, 17. The throttle valve 3 is operated by a Bowden wire 46 through an arm 47 connected to the spindle 41 by a tension spring 45. A member 50 contacts a stop in the fully open position, but further depression of the accelerator pedal, e.g. at starting or accelerating, rotates the arm 47 against the spring 45, the throttle valve remaining fixed, to rotate the crank lever 40 by contacting stop 49 thereon, setting the arms 35, 36 to close spring 18 so that a rich mixture is delivered past spring 19. An idling nozzle 26, Fig. 3, connected to the bore 10 has its air supply controlled by a rotatable cap 31.
Patent GB-569762-A (GB)
Title: Improvements in and relating to manhole covers and frames
IPC: E02D29/12
Filed: 1943-09-15
Abstract: 569,762. Manhole covers and frames. HARTLEY, C. J., and PEPPER, J. B. Sept. 15. 1943, No. 15100. [Class 107] A manhole is provided with an approximately diamondshaped frame 1 with flattened corners 2, 3, and with two triangular covers 4 hinged to adjacent sides 1a, 1b, of the frame lying on the same side of its major axis; the hinges and their supports may be as in Specifications 390,806, 474,250 and 535,621. The minor axis of the frame may be spanned by a hinged cross-member 9 with ledges normally just clear of the covers, the latter being supported at their corners so that no rocking occurs. The cross-member and covers are removable.
Patent GB-672480-A (GB)
Title: Method of producing completely dehydrated metal chlorides and titanium-base alloys
IPC: C22B5/06
Filed: 1950-06-16
Abstract: Completely dehydrated metal chlorides, e.g. of zirconium, hafnium, thorium, vanadium, niobium, tantalum, chromium and uranium, are obtained by dissolving the substantially dehydrated chloride in liquid titanium tetrachloride, separating the liquid phase from the solid, i.e. the titanium oxide produced, and removing the titanium tetrachloride from the metal chloride, as by distilling the former under reduced pressure, or by cooling a hot saturated solution to crystallize the latter.ALSO:Titanium base alloys substantially free from embrittling oxide, nitride and hydride compounds are prepared by forming a liquid phase mixture of titanium tetrachloride and a minor part of at least one substantially anhydrous other metal chloride, removing titanium oxide formed by the small amount of water present in the other metal chloride, and reducing the mixture to metal powder by reacting with molten alkaline earth metal, preferably magnesium, under an inert gas, preferably argon, at atmospheric pressure; Specification 632,564 is referred to in connection with this reduction process.  The metal powders are compacted and sintered in an inert atmosphere.  The alloys are suitable variously for use as getters for the removal of gases from evacuated and gas-filled electrical devices, as lead-in and support wires in electrical discharge and electronic devices, and as electrical contact elements. Alloy elements specified are zirconium, hafnium, thorium, vanadium, niobium, tantalum chromium and uranium; an alloy containing 10-25 per cent tantalum is mentioned.
Patent GB-259637-A (GB)
Title: Apparatus for heating and feeding blanks
IPC: B21C33/00
Filed: 1925-06-11
Abstract: 259,637. Ellis, G. B., (Bliss Co., E. W.). June 11, 1925. Hollow-ware.-In apparatus for heating and feeding blanks, adapted particularly for use in the process of forming cup-shaped bodies, such as zinc cups for dry batteries set forth in Specification 235,302. the blanks are fed, automatically or by hand, into a series of conduits which are moved past the heating means and the temperature of the blanks fed from the heater is controlled by adjusting the rate of heating or the rate of travel of the blanks relatively to one another. The conduits 10 are formed by grooves 12 on the outer surface of a drum L which is rotatably mounted within a heater K and separated from it by a cylindrical sheet metal partition 13. The lower ends of the conduits 10 successively register, as the drum L rotates, with a slot in the bottom plate 19 to which is connected a shoot 20 serving to deliver the blanks on to a plate 21 from which they are fed, by a pusher 22, to a die-plate 25. The latter is provided with a stop and a pair of spring jaws serving to centrethe blank in relation to a punch A which is advanced to force the blank into the hollow Band' retracted to withdraw the extruded cup, a knockout device D being provided, within the punch A, to remove the formed cups.
Patent GB-1179877-A (GB)
Title: A Process for the Crucible-free Zone-by-Zone Melting of a Crystalline Rod
IPC: C30B13/20
Filed: 1967-04-03
Abstract: 1,179,877. Zone-melting. SIEMENS A.G. 3 April, 1967 [15 April, 1966], No. 15240/67. Heading B1S. [Also in Division H5] In crucible-free zone-melting of a crystalline rod, the molten zone is supported by the magnetic field of an induction coil supplied with an alternating current wherein the amplitude of the current lying in the frequency range 100 to 300 c/s is less than 5% of the current supplying the supporting field. The rod may be heated by an additional induction coil or by the zone-supporting coil, which may be fed with a low frequency supporting current and a high frequency heating current. The undesired current in the range 100 to 300 c/s is reduced by smoothing the supply voltages of valve or semiconductor generators, or the direct excitation current of machine generators which supply the zone supporting induction coil by conventional filter circuits.
Patent GB-1510881-A (GB)
Title: Pressure-cooker
IPC: A47J27/092
Filed: 1975-04-14
Abstract: 1510881 Pressure cooker OBERSCHWABISCHE METALLWARENFABRIK GmbH & CO KG 14 April 1975 15310/75 Heading B1X [Also in Division F2] A pressure cooker comprises pot 1 and lid 2 parts which are connectable to each other by a bayonet-type joint 6, 7 by relative rotation of the parts, pot 3 and lid 4 handles which are lockable together 40, a pressure limiting valve 13 mounted on the lid, and spring means for loading the valve to a desired pressure, in which pressure cooker the spring means comprises a torsion spring 16 mounted in the lid handle and extending over a rim zone of the lid to the valve, and means 15 are provided for stressing the torsion spring to load the valve only when the lid and pot handles are locked together.
Patent GB-421445-A (GB)
Title: Improvements in golf balls and golf ball centres and method of making
IPC: A63B37/00
Filed: 1934-05-23
Abstract: 421,445. Golf balls. YOUNG CO., L. A., 6545, St. Antoine Street, Detroit, Michigan, U.S.A.-(Assignees of Young, L. A.) May 23, 1934, No. 15442. Convention date, Dec. 15, 1933. [Class 132 (ii)] A core for golf balls comprises a spherical resilient sack filled only with honey. The sack, which may be made of rubber with an inner coating of viscous uncured rubber, is wound first with rubber tape under tension, and then with ribbon strands under tension, an outer shell being applied by moulding. A nozzle 7 for filling the sack 2 with honey has passages 8, 9 connected respectively to an exhaust pas. sage 14 and a supply passage 15 according to the position of a valve 12. A rubber patch is used to seal the hole in the core caused by the nozzle.
Patent GB-222804-A (GB)
Title: Improvements relating to gantry cranes
IPC: B66C17/00
Filed: 1924-06-27
Abstract: 222,804. Uellner, P. June 27, 1924. Cranes; staiths and elevated structures.-For loading and unloading ships, a transporter b is provided with a slueing, jib crane a and with one or more travellers which run on rails c and carry fixed or slueing jibs d. With this arrangement, two cranes such as a, d, can be used over the same hold more conveniently than when the transporter structure overhangs the hold. The hoisting gear and the slueing gear are arranged' at the back of the crab, or the hoisting gear, the travelling gear and the operator's platform may be on the framework b instead of on the traveller.
Patent GB-236370-A (GB)
Title: Improvements in means for rotating converging shafts around a common axis without allowing them to rotate on their own axes
IPC: A01D78/14
Filed: 1924-06-27
Abstract: 236,370. Martin, W. E. June 27, 1924. Link - work for hay - making &c. machines. - In means for rotating converging shafts around a common axis without allowing them to rotate on their own axes, applicable to swathturners and side-delivery rakes, the driving-shaft a turns a carrier c in which bear the converging shafts d pivotally secured to the carrier e of the tines &c. f. Cranked sockets g, or ball - ended cranks, engage with balls k projecting from, or with sockets formed in, a disc i carried loosely on a stationary rod h or other bearing. The disc may be replaced by radial arms.