baber/WOPTO huggingface dataset:
Patent GB-515607-A (GB)
Title: Improvements relating to the treatment of mineral materials by froth flotation
IPC: B03D1/008
Filed: 1938-09-12
Abstract: 515,607. Concentrating ores. SMIDTH & CO. AKTIESELSKABET, F. L. Sept. 12, 1938, No. 26577. Convention date, Sept. 10, 1937. [Class 82 (ii)] An aqueous emulsion prepared by emulsifying together in water a fatty acid, a mineral' oil, and a caustic alkali or ammonium hydrooxide is used as a collecting agent in the froth flotation concentration of oxidized ores, particularly in the concentration of calcite from argillaceous limestones, marls, and chalks, and in the concentration of phosphate ores. The emulsion is preferably made by mixing an aqueous solution of the alkali with a preformed mixture of the fatty acid and oil. The alkali is preferably added in an amount in excess of that required to saponify the fatty acid, e.g. sodium hydroxide in an amount equal to 20-25 per cent. by weight of the fatty acid and oil. The fatty acid used may be, for example. oleic acid, fish oil fatty acids, or refined tall oil; the mineral oil may be an oil such as kerosene or, preferably, a medium weight fuel oil. The oil-water ratio of the emulsion is preferably between 1:20 and 1:33. The frothing may be controlled by varying the proportion of mineral oil to fatty acid in the emulsion. and also by adding cresylic acid, alcohol frothers &c. to the flotation cells. The concentration of calcite ores in order to produce raw materials suitable for use in cement manufacture is described; in treating an argillaceous limestone the collector is added in stages and a frother consisting of aliphatic alcohols of a boiling point between 152‹ and 162‹C. is used. In concentrating a phosphate ore, an emulsion prepared from tall oil, fuel oil, and sodium hydroxide is used together with additional fuel oil and sodium. hydroxide. Specifications 478,275 and 515,606, and U.S.A. Specifications 1,986,816 and 1,986,817 are referred to.
Patent GB-1013939-A (GB)
Title: Improvements in or relating to solid, water-dispersible pharmaceutical compositions
IPC: A61K9/20
Filed: 1963-07-04
Abstract: Solid, non-hygroscopic, water-dispersible pharmaceutical compositions are prepared by mixing a crystalline sugar with 1 to 5% of its weight of highly dispersed silica and/or calcium silicate, impregnating the mixture with a hot, aqueous solution of citric and/a tartaric acid, rapidly drying the impregnated mixture to a moisture content of 0.2 to 0.3% by weight, finely grinding the product and adding thereto one or more therapeutically active components.  One or more synthetic sweetening agents, flavours, dyes, effervescent ingredients, thickening, emulsifying or lubricating agents may also be included in the compositions which may be pressed into tablets, pills or dragees. Therapeutically active components mentioned are aspirin, ascarbic acid and a multi-vitamin mixture.
Patent GB-870744-A (GB)
Title: Force absorbing lace
Inventor: AUSTIN HARRY WILSON
IPC: A42B3/14
Filed: 1959-08-04
Abstract: 870,744. Protective helmets; laces. MINE SAFETY APPLIANCES CO. Aug. 4, 1959, No. 26585/59. Classes 43 and 63 [Also in Group XXXIV] A force absorbing lace L connecting the cradle straps 4 of a protective-hat lining 2 is formed from two long flexible elements 6 and 7 disposed parallel to each other with their adjacent ends 8 tightly secured together; one element 7 having less tensile strength than the other so that if the lace is suddenly strained it breaks whilst the other 6, which is elongatable stretches. The element 7 is a cord inside the element 6 which is tubular and the ends of the two elements may be secured together by knotting or by clips. The lace is formed in a loop to connect the cradle straps by knotting.
Patent GB-465253-A (GB)
Title: Pair of compasses
IPC: B43L9/24
Filed: 1936-10-01
Abstract: 465,253. Drawing-compasses. LOTTER, J. C. Oct. 1, 1936, No. 26605. [Class 97 (iii)] [Also in Group XXV] The extensible part 5, 6, of a compass leg 2 is clamped by a screw 4 the accidental loss of which is prevented by a rigid member 7 or a blade spring secured to the leg 2 and overlying the head 3 of the screw 4 so that the latter cannot be completely withdrawn.
Patent GB-479959-A (GB)
Title: Improvements in tubular heat interchanging apparatus applicable to liquid and other coolers
IPC: F28D7/00
Filed: 1936-10-01
Abstract: 479,959. Radiators. SERCK RADIATORS, Ltd., and GARNER, E. Oct. 1, 1936, No. 26628. [Class 29] A segmental-shaped honeycomb type radiator for cooling oil &c. is formed in sections separated by strips d to which the adjacent tubes are secured by soldering. The tubes are spaced apart by enlargements, c, g, and the oil flows through the interstices between the tubes, while air passes through the tubes. A number of segments may be assembled to form an annular cooler.
Patent GB-433668-A (GB)
Title: Improvements in centrifugal bowls
IPC: B04B1/12
Filed: 1934-09-17
Abstract: 433,668. Centrifugal bowls. AKTIEBOLAGET SEPARATOR-NOBEL, 8, Fleminggatan, Stockholm. Sept. 17, 1934, No. 26645. Convention date, Sept. 16, 1933. [Class 23] In a centrifugal bowl provided with outlets g, f, for lighter and heavier separated liquids, means for discharging a still heavier separated liquid comprise two passages j leading from points within the bowl towards the bowl axis, andnozzles &c. n screwed into the bowl wall and extending for some distance into the passages and serving as discharge openings from said passages. The nozzle may have a restricted orifice as at r in Fig. 4, and may be removed by means of a tool inserted through the tube j. In another form, an elongated cup surrounds the nozzle n and communicates with the interior of the bowl.
Patent GB-484205-A (GB)
Title: Improvements in coin collectors for telephone instruments
IPC: H04M17/02
Filed: 1936-10-01
Abstract: 484,205. Prepayment telephone apparatus. HALL TELEPHONE ACCESSORIES (1928), Ltd., and HALL, F. W. Oct. 1, 1936, No. 26676. [Class 27] Coin action, mechanical-connection and multiple-coin.-A coin collector for telephone instruments comprises a casing 1, Figs. 1 and 4, containing a coin-carrier 3 rotatably mounted by means of a shaft 4 having an operating knob 7. The carrier is rocked from its normal position against the action of a spring 18 to a position under a slot 2 to receive two coins. It is then returned to its normal position where the coins remain in suspense on a pin 15 extending from a lever 16 into the carrier, and where they engage and move a lever 10 an abutment 11 on which actuates a contact blade 12 of contacts 13 to open a short circuit around the dial and to short-circuit the transmitter. A call can then be made ; if this is effective, a finger lever 17 is depressed and, by means of a pin engaging an inclined slot 16a, rocks the lever 16 to withdraw the pin 15 and ' cash in' the coins. The contacts 13 are now reversed and conversation can take place. If this cannot be obtained, the carrier is rocked to coin-receiving positions where the coins are lifted, so that they may be grasped, by rolling over a pin 23. In this position an insulated pin 22 on the shaft 4 opens contacts 21 and breaks the line to exchange. The rear wall 3b, Fig. 6, of the carrier 3 has a slot 3c through which a single, if only one coin is inserted, coin moves when it comes into contact with the lever 10. The lever 10 and the contacts 13 are thus not actuated to allow exchange to be dialled. Coin-slit closing-devices.-A shutter 20 on the carrier masks the coin slot, when the carrier is in normal position and prevents fraudulent actuation of the contacts 13.
Patent GB-865824-A (GB)
Title: Improvements relating to mechanical filters
Inventor: GASH FREDERICK
IPC: B01D46/00
Filed: 1958-08-20
Abstract: 865,824. Filters. AUTOMATIC COAL CLEANING CO. Ltd. July 28, 1959 [Aug. 20, 1958], No. 26752/58: Class 46. A sector forming part of a filter leaf has a hollow spigot 1, Fig. 1, and a part 2 with continuous upper and lower surfaces. Beyond the part 2 the upper and lower surfaces may consist of panels 3 of wedge wire 6, Fig. 2, assembled between channel members 4. The wires 6 are located, narrower face inwards, by being looped around cross-bars 7 and welded at 9 for a short distance at each end of the pair of cross-bars. Alternatively the panels may be made from plates penetrated by tapered holes.
Patent GB-1528659-A (GB)
Title: Overload protection circuits
IPC: H02H7/20
Filed: 1976-06-28
Abstract: 1528659 Protecting semiconductor circuits INDESIT INDUSTRIA ELETTRODOMESTICI ITALIANA SpA 28 June 1976 [11 July 1975] 26813/76 Heading H3T A chopper transistor 5 in a television deflection circuit is protected against overload by a transistor 13 and a lambda diode 14. A lambda diode is a device having a current-voltage characteristic having a first positive derivative portion and a second negative derivative portion and preferably comprises two complementary field effect transistors connected in series, each of their gates being connected to the unconnected electrode of the other. Overload causes an increased voltage drop across the winding 8 of the line deflection transformer. Lambda diode 14 goes into its negative gradient regions bringing transistor 13 out of saturation. The negative voltage appearing across the base-emitter junction of transistor 13 limits or interrupts the current through transistor 5. When the overload ceases, the circuit automatically returns to normal operation.
Patent GB-1340276-A (GB)
Title: Process for decomposing metallic oxide materials
IPC: C01G43/00
Filed: 1971-04-19
Abstract: 1340276 Decomposing oxidic compounds KERNFORSCHUNGSANLAGE JULICH GmbH 19 April 1971 [21 April 1970] 26843/71 Heading C1A Oxidic compounds are decomposed by heating the compound with a mixture of a sulphate and a pyrosulphate, M 2 S 2 O 7  at 650-800‹ C. there being at least sufficient pyrosulphate present to convert the oxidic compound to the corresponding sulphate. The pyrosulphate, which may be alkali metal and/or ammonium pyrosulphates, may be present in an excess of up to 50%. The reaction vessel may be maintained under a superatmospheric SO 3  pressure. The quantity of sulphate to be added may be determined by decomposing a portion of the metallic compound with pure pyrosulphate and determining the ratio of metal to sulphate ions. Oxidic compounds suitable for the process of the invention include ZrO 2 , mixed oxides of U and Th and compounds of general formula M<SP>1</SP>O.M<SP>2</SP> 2 O 3  where M<SP>1</SP> is a divalent metal and M<SP>2</SP> is a trivalent metal, and M<SP>3</SP>O.M<SP>4</SP>O 2  where M<SP>3</SP> is a divalent metal and M<SP>4</SP> is a tetravalent metal. Examples of such compounds include FeO.Cr 2 O 3 , FeO.Fe 2 O 3 , and CaTiO 3  (i.e. CaO.TiO 2 ).
Patent GB-646062-A (GB)
Title: Improvements in or relating to butter churns
IPC: A01J15/14
Filed: 1947-10-06
Abstract: 646,062. Mixing appliances. HILL, R. Oct. 6, 1947, No. 26854. [Class 86] In a butter churn in which the container rotates. end over end, about a horizontal axis, a motor drive is provided, the container being readily releasable from the driving connection without the use of tools. As described, a glass container is received by a metal band 2 which carries sockets 5, 6. The socket 5 is slotted to operatively engage a diametrical pin 15 in the driving spindle 7 whilst the socket 6 receives a spigot 8 inwardly biassed by a spring contained within the boss 19 and provided with a knob 21 for manual release of the container. Driving means comprises an electric motor 31 having a wheel 33 axially adjustable on the motor spindle for adjustable frictional engagement with a chamfered rimmed wheel 29 carried by a lay-shaft 23 supported from one of the frame side members 9, a flexible belt coupling 28 being provided between the wheel 29 and the pulley 18. To provide a variable ratio drive the width of the chamfered rim of the wheel 29 may be increased. the wheel 29 being made vertically adjustable by mounting the lay-shaft 23 in a vertical slot in the side member 9. Specification 622,764 is referred to. Reference has been directed by the Comptroller to Specification 622,764.
Patent GB-657090-A (GB)
Title: Improvements in or relating to a process of separating solid granular materials having different densities
IPC: B03B13/00
Filed: 1947-10-07
Abstract: 657,090. Washing granular materials. TROMP, K. F. Oct. 7, 1947, No. 26905. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 13, 1948.] [Class 82(ii)] In a process of separating granular materials having different densities by means of a stream of liquid medium of intermediate density, the floats as well as the sinks are removed by mechanical means moving in the same direction as the liquid medium and the liquid medium flows underneath the discharge shoot of the floats and over the weir over which the sinks, are removed. An apparatus for carrying out this process comprises a tank 1 containing a liquid medium 2 which is fed from conduits 13, 14, 15, 16 and discharged over a weir 1b into a transverse trough 18. The material to be separated is charged by a shoot 17, the floats being swept up a perforated chute 4 by a conveyer 3, and the sinks removed by a drag conveyer 8, the working faces of both conveyers moving in the same direction as the liquid stream. The ratio of the speeds of conveyers 3 and 8 is equal to the ratio of the volumes of floats and sinks in the material and the feed of liquid per second by the inlet 9 is equal to the amount of liquid per second drawn by conveyer 3 if there were no floats. The conveyers comprise endless chains interconnected by scrapers of suitable size or in a form (not shown) the conveyer 8 is replaced by an imperforate belt in which the driving roller of the belt forms the weir. In another form. of apparatus (not shown) the chute 4 is not perforated and does not extend to the weir 1b and the liquid is kept flowing at a constant velocity by a second conveyer. The velocity of the liquid may be kept constant by discharging some of the liquid through a sieve into a conduit or by means of the arrangement in Fig. 6. In this arrangement a rod 25 carries an arm 26 at each end, the other ends of the rods being connected by a rod 27 carried in bearings. Secured to the rod 27 is an impeller 28 and carried at each end of the rod are a disc 32 and a crank 29 hinged to a rod 30 which is attached to the corresponding arm 26 by a spring 31. The arms 26 are swung about the rod 25 by a connecting rod 36 attached to a crank 37 rotated by external means. Radially the cam 32a of the, disc 32 is engaged by a spring loaded pawl 33 and as the arm 26 moves, the disc 32 together with the impeller 28 are rotated until stopped by an'abutment 35, the impeller then being parallel to the arm. At the end of the arm's motion another cam 32b of the disc 32 engages with a stop 39, attached to the tank wall, and the impeller is rotated until it is at right angles to the arm so that the liquid is undisturbed on the return stroke.
Patent GB-960155-A (GB)
Title: Improvements in or relating to the cold permanent waving of hair
IPC: A61K8/46
Filed: 1960-08-03
Abstract: A lotion suitable for use in the cold permanent waving of hair and in the straightening of hair comprises an aqueaus solution of a mercapton, e.g. a salt of thioglycollic such as ammonium thiogly collate, and 0.1 to 5.0% w/v of a salt of a hydrophilic coloidal acid, e.g. a salt formed from alginic acid, carboxy methyl cellulose or a carboxy polymethylene and an inorganic base, such as ammonia or sodium hydroxide, or an organic-base, such as monoethanolamine.  The salt of the colloid may be employed per se or may be formed in situ by incorporating the colloid into the lotion in conjunction with a base.  Hair may be waved by treating it with the lotion either before or after placing it in a desired configuration and then applying a neutraliser.  The hair may be simultaneously coloured and waved by incorporating a dyestuff which is dermatologically safe for use on the scalp into the lotion.  Suitable dyestuffs are preformed water soluble coal tar dyes of the acid level-dyeing type, water soluble oxidation dyestuffs, e.g. p-phenylene diamine, m-phenylenediamine, resorcinol and catechol, and basic dyestuffs if sufficiently soluble in water or a water-miscible solvent such as ethanol, e.g. Methylene Blue, Rhodamine and Rosamiline.  The lotion may also contain one or more wetting agents, e.g. a polyoxyalkylene sorbitan manolaurate or an alkylaryl sulphonate, and a perfume and may be applied to the hair from a plastic "squeeze" bottle.
Patent GB-1049972-A (GB)
Title: Improvements in or relating to massage vibrators
Inventor: CHEUNG CHAN
IPC: A61H23/02
Filed: 1964-06-30
Abstract: 1,049,972. Massage appliances. LEO ENTERPRISES Ltd. June 30, 1964, No. 26999/64. Heading A5R. A battery-powered electric massage vibrator comprises a metal casing containing an electric motor 6 operable to generate mechanical vibrations in the casing by rotating an eccentrically mounted weight 5, the casing being arranged to accommodate a battery 17 for applying power to the motor, and carrying an applicator member 1 for applying the vibrations. As particularly described, the applicator member 1 of a synthetic rubber is frictionally held in a plastics cap 2 covering part of the casing.
Patent GB-1027173-A (GB)
Title: Improvements in or relating to ties for use in walls and other structures
IPC: E04B1/41
Filed: 1961-07-26
Abstract: 1,027,173. Building panels. HIGH SPEED SYSTEM BUILDING Ltd. July 26, 1962 [July 26, 1961], No. 27054/61. Heading E1B. In a building panel comprising a layer of concrete 7 secured by ties 1 to a layer built with bricks 5, each tie is in the form of a flat bar having an aperture 2 and welded-on rods 3, 4. The rods are speced from each other across the width of the bar and are of circular cross-section, the rod 3 being of larger diameter. The panel is assembled in a horizontal position and reinforcing rods 6 may be inserted in the concrete layer through the aligned apertures 2.
Patent GB-379120-A (GB)
Title: Improvements relating to the production of metal castings
IPC: B22D7/06
Filed: 1931-09-29
Abstract: 379,120. Casting processes. BAILEY, R. W., 20, Grange Avenue, Hale, Cheshire, ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London, and ENGLISH STEEL CORPORATION, Ltd., Vickers Works, Sheffield. Sept. 29, 1931, No. 27118. [Class 83 (i).] Moulds.-In cooling ingots and other metal castings as in Specification 371,371 the desired action is increased by causing a current of air or gas to flow upwards over the mould 1 in a space between this and a jacket 5. The flow may be effected by convection alone or be assisted by jets 8 of air, steam, or other gas arranged at the bottom or top of the jacket. The mould may be provided with radiating fins 9 decreasing towards the top. The head 2 of the mould may be provided with a cover 11, Fig. 4, and be raised from the mould 1 by bolts 10 to leave a space 16 so shaped that the interior gas escapes and is projected upwards.
Patent GB-1436025-A (GB)
Title: Breakage detector
IPC: G01H17/00
Filed: 1974-06-19
Abstract: 1436025 Acoustic breakage sensor GULF & WESTERN MFG CO (SYSTEMS) 19 June 1974 [15 Oct 1973] 27124/74 Heading H4D [Also in Division G4] A system for detecting breakage of a solid material i.e. a glass panel, suitable for use as a burglar alarm, comprises a transmitter transducer T1 disposed on the material for establishing a first frequency signal, the material creating a signal of second frequency when broken, a receiver transducer R1 also disposed on the material for receiving the signals. An element 10 may be provided for demodulating a composite of the signal or for mixing the composite signal with the first frequency signal to provide a third frequency signal and output circuitry 20-28 is arranged to be responsive to the third frequency signal or the composite signal itself to provide an alarm condition. The system may include a supervisory circuit Q1-Q4 30 for generating an alarm signal upon the absence of the first. A plurality of pairs of transmitter, receiver transducers may be mounted on separate glasses to be monitored. A pair of receiver transducers may optionally be associated with each transmitter transducer. High pass filters F1- Fn, 20 exclude low frequency components so that the alarm 28 is actuated via a trigger circuit 24 only when a glass is broken. The supervisory circuit includes series connected normally conducting transistors Q1-Qn, one or more of which may be turned off when the first frequency signal fails or when either the transmitter, receiver transducers are moved to actuate the alarm 28 via a level detector 30. In the alternative embodiments of the supervisory circuits (Figs. 2, 3, not shown), the transistors Q1, .... Qn are connected in parallel instead of in series.
Patent GB-519206-A (GB)
Title: Improvements in and relating to the treatment of keratincontaining fibres
Filed: 1938-09-17
Abstract: 519,206. Curling fibres ; waving hair- CHAMBERLAIN, N. H., and MACDONALD STEAM WAVING, Ltd. Sept. 17, 1938, No. 27164. [Class 15 (ii)] [Also in Group VIII] A process for the permanent waving of hair or other keratin-containing fibres of the kind in which the fibre is wound around a curler and then subjected to heat in the.presence of steam and a volatile alkali, comprises placing over the fibre a dry permeable envelope containing materials which develop volatile substances in the presence of steam. The following substances are statedto be applicable : ammonium bicarbonate, ammonium carbamate, ethylamine carbonate, dimethylamine bicarbonate and also metallic nitrides such as magnesium nitrides which evolve ammonia on heating in steam. Diluents such as magnesium carbonate or starch may be added.
Patent GB-158628-A (GB)
Title: Improvements in printing blocks
IPC: B41N6/00
Filed: 1919-11-05
Abstract: 158,628. Hood & Co., Ltd., and Hood, H. W. Nov. 5, 1919. Printing and embossing surfaces. - Wood, metal, or other mounting-blocks A for process blocks, electrotypes, stereotypes, and embossing, blocking, or other printing-plates or clichÚs are formed with a level B, and the usual bevel on the printing-plate C is bent downwards to correspond with the bevel on the mounting-block, so that the edges of the printing-plate are more out of the way of the inking-rollers, and type matter may be composed much closer to the block's surface. The copper plate is secured to the mount bv screws or nails, as shown at D. Instead of a bevel, the mounting-block may be formed with a rabbet and the edges of the printing-plate, &c. turned over at right-angles to engage therewith, as shown at E. Specifications 2168/85, 3120/85, and 8881/87 are referred to.
Patent GB-920717-A (GB)
Title: Improvements relating to electron discharge devices
IPC: H01J23/087
Filed: 1960-08-05
Abstract: 920,717. High-frequency discharge apparatus. COMPAGNIE FRANCAISE THOMSONHOUSTON. Aug. 5, 1960 [Aug. 6, 1959], No. 27263/60. Class 39 (1). An electron discharge apparatus comprises a travelling wave or other electron beam tube having a cylindrical non-magnetic envelope portion 20 and a cylindrical ferromagnetic envelope portion 21, means for producing an axial magnetic field and a ferromagnetic disc 32 coaxial with and externally of ferromagnetic envelope portion 21. The structure is duplicated at the other end of the tube and a flux guide 36 of thickness tapering from the middle to both ends is placed between the ferromagnetic discs 32, 33. The discs 32, 33 and tube 36 make the magnetic field uniform along the tube. The non-magnetic envelope parts 20, 22 are of glass or ceramic and the ferromagnetic members of Ni-Fe or Ni-Fe-Co alloys. Envelope parts 17, 23 are also ferromagnetic, 17 serving as a gun shield. Polepieces 27, 28 are joined by ferromagnetic rods 30, 31 and are energized by coil 29. The delay line is a helix 5 and the base 14 is of glass or ceramic.