baber/WOPTO huggingface dataset:
Patent GB-421111-A (GB)
Title: Improvements in wind musical instruments
IPC: G10B3/08
Filed: 1934-09-14
Abstract: 421,111. Organ pipes. COMPTON, J. H., Chase Road, Willesden, London. Sept. 14, 1934, No. 26487. Drawings to Specification. [Class 88 (ii)] In a labial or lingual organ pipe having along its length one or more valve-controlled ports so as to sound successively two or more notes of different pitch, a number of simultaneously opened ports at the same distance from the end of the pipe and distributed around its wall are provided to prevent resonance of that part of the pipe above an open port. Preferably two ports of equal area and on opposite sides of the pipe are used.
Patent GB-742338-A (GB)
Title: Disc brake for vehicles
Inventor: DAVIS JOHN WALTER
IPC: F16D65/14
Filed: 1953-09-26
Abstract: 742,338. Disc brakes. GIRLING, Ltd. Dec. 23, 1954 [Sept. 26, 1953; July 19, 1954], Nos. 26544/53 and 20937/54. Class 103 (1). In a disc brake of the kind comprising friction pads 20 applied to the opposite sides of a rotary disc 10 by opposed fluid pressure cylinders 17 having pistons 22 therein. The pads 20 are of segmental cross-section and the radial outermost side of the cylinder housing is open over a sufficient circumferential length to permit the insertion and removal of the friction pads through the opening. As shown in Fig. 2, the opening is of sufficient breadth to permit the insertion of a new full-width pad, as shown on the right, after it has been worn down almost to the backing plate, as shown on the left of the disc. The opening is normally closed by a curved sheet metal cover 28 secured to the inner faces of stirrup members 12 by bolts 27. In a similar construction described, pairs of cylinders on each side of the disc apply common pads thereto. In Figs. 8 and 9 the backing plate 46 for the pads 45 has notches 47 wherein it is guided on pins or pegs 48 which are held in position by split pins 49 so that they can be removed to enable the pads to be replaced. Fig. 12 shows a construction in which there is a one-piece forged or cast housing for the cylinders on both sides of the disc, with transverse parts 67 passing over the periphery of the disc. Specification 688,382 is referred to.
Patent GB-601767-A (GB)
Title: An improved holder and lock for cycle pumps
IPC: B62J11/02
Filed: 1945-10-11
Abstract: 601,767. Inflators. GARTON, F. Oct. 11, 1945, No. 26571. [Class 136 (i)] A cycle pump holder comprises means c<SP>1</SP> engageable with one end of the pump and requiring endwise movement of the pump for disengagement, the other end of the pump being engaged by a pivoted lever b adjacent a ring like member b<SP>1</SP> in which the pump is located, release of the pump being prevented by the provision of complementary fastenings between the lever and ring which prevent movement of the lever, the three parts being adapted for fixing to a tube of a cycle frame in such relative position that a pump will be held against endwise movement. The lever g forms a staple passing over a hasp b<SP>2</SP> on the ring b<SP>1</SP> adapted to receive a padlock. The three parts of the holder may incorporate clamping rings a, b, c or base portions by which they are attached to the frame. The parts may be adapted to hold the pump inverted.
Patent GB-1101093-A (GB)
Title: Electrodeposition of nickel
Inventor: WATSON SIDNEY ALEC
IPC: C25D21/18
Filed: 1965-06-23
Abstract: In a process of electro-depositing (e.g. electroplating or electro-forming) Ni from a plating bath containing 500 to 700 g/1 of nickel sulphamate, the electrolyte is subjected to subsidiary electrolysis using a nonactivated Ni anode at a current density of from 1 to 30 A/sq. ft. on the subsidiary <P\1> anode surface. By non-activated Ni is meant Ni which contains only such very minor proportions of depolarizing elements (e.g. S, P and Si) an impurities that its anodic dissolution potential under any given conditions is substantially the same as that of pure Ni under the same conditions. The subsidiary electrolysis serves to purify the electrolyte.  By the process, desired stresses can be obtained in the deposited Ni.  The plating anode may be of non-activated or activated Ni. Fig. 2 shows a plating bath 1 containing a workpiece 4, shield 5, main plating anode 2 and subsidiary anode 3.  The subsidiary electrolysis, instead of being performed in the plating bath, may be performed in a subsidiary tank and the electrolyte be circulated between this tank and the plating bath. The subsidiary cathode may have a corrugated surface so as to have a varying current density over its surface thus aiding the removal of a wide range of contaminating metals. In an example an electrolyte containing  600 g/1 nickel sulphamate 10 g/1 nickel chloride 40 g/1 boric acid  is purified by a two-stage electrolytic process and cathodes are then plated for 30 mins at 50A/sq. ft. on the cathode surfaces.
Patent GB-209169-A (GB)
Title: Improvements in or relating to the removal of hydrogen sulphide from gases
IPC: C10K1/12
Filed: 1922-10-03
Abstract: 209,169. Jackson, W. J. Mellersh-, (Koppers Co.). Oct. 3, 1022. Alkali carbonates and sulphocyanides; sulphuretted hydrogen.-Sulphuretted hydrogen is removed from gases by washing with an alkaline solution such as sodium carbonate which is regenerated by aeration giving rise to the formation of thiosulphates. The thiosulphate is removed from the solution and converted into carbonate or sulphide which is returned to the washing liquor. the sulphide preferably being converted, into carbonate by the sodium bicarbonate present in the liquor. Carbon-dioxide may be added for this purpose if the gases treated do not contain it. The thiosulphate is converted into sulphide by heating with carbonaceous material at about 900‹ C. or into carbonate by heating with carbonaceous material and limestone at about 1000‹ C. The gas is scrubbed in a tower C by sodium carbonate solution from a tank B. The liquor from the tank A is taken to second tower M in which it is treated with air and from which it flows back to the tank B. A portion of the liquor from the tank B is withdrawn to a store tank E and thence to an evaporator R and the circulating liquor is made up to its original quantity and strength by adding sodium carbonate. The evaporation is carried on until the boiling point reaches about 120‹ C. and sodium carbonate separating out is removed by filtration or centrifuging of the hot solution. The solution is crystallized in a tank T. The crystals are separated in the centrifugal S and mother liquor run into a tank V. This mother liquor may contain alkali sulphocyanide and may be treated for its recovery. The thiosulphate crystals are dehydrated and treated in a furnace V to obtain sulphide or carbonate which is leached out in a tank Wand returned to the circulating liquor in the tank A at which point the liquor contains bicarbonate owing to the absorption of carbonic acid in the tower C.
Patent GB-1477927-A (GB)
Title: Hot fluid bulking of braid or cord
IPC: D02G1/20
Filed: 1975-06-18
Abstract: 1477927 Steam-bulking braid or cord; braids, knitted yarns THOMAS FRENCH & SONS Ltd 18 June 1975 [18 June 1974] 26837/74 Headings D1F and D1K Cord or braid 13 is continuously bulked by passage through a bulking chamber 12 under substantially zero tension whilst a heated fluid i.e. steam at a temperature sufficient to cause bulking is fed to the chamber 13 may be a circular or flat cross-section braid produced from threads of twisted yarn or from a plurality of chain stitch knitted yarns or a combination thereof, a multistrand doubled or twisted yarn or a cord produced by forming a chain stitch knitted yarn. Preferably the bulking chamber 12 is mounted below a twisting, knitting or braiding apparatus (60, Fig. 5, not shown) and cord or braid 13 passes through the chamber under its own weight. It then passes 180‹ or 540‹ around a low friction roller (63) or through a nip and is built into a package. As shown steam produced by the action of heater 16 on water from inlet 18 rises over dividing wall 14. Cylinder 10 has insulation 11. One or more circular walls (51, Fig. 4, not shown), each enclosing one or more bulking chambers may replace wall 14.
Patent GB-224894-A (GB)
Title: Improvements in and relating to incandescent lamps and similar devices
IPC: H01K1/58
Filed: 1924-11-11
Abstract: 224,894. British Thomson-Houston Co., Ltd., (Assignees of Donovan, J. F.). Nov. 12, 1923, [Convention date]. Screens within bulbs.-A screen for breaking up convection-heat currents in electric incandescent lamps comprises a disc 18 of mica &c. perforated at 19 to engage with connecting conductors 14, and also at its centre for engagement with a resilient mounting sleeve 20 by means of stamped-out tongues 21 formed thereon. The sleeve is constructed of springy metal and is polygonal in section with one edge open to allow for expansion, and is frictionally held in place on the circular glass supporting stem 16. Specification 10918/13 is referred to.
Patent GB-952146-A (GB)
Title: Apparatus for separating documents
Inventor: HODES JOZEF HERMANUS JOHANNES
IPC: B07C1/04
Filed: 1962-07-13
Abstract: 952,146. Feeding sheets. STAAT DER NEDERLANDEN TEN DEZE VERTEGENWOORIDIGD DOOR DE DIRECTEUR-GENERAAL DER POSTERIJEN TELEGRAPHIC EN TELEFONIE. July 13, 1962 [July 21, 1961], No. 27030/62. Heading B6B. In apparatus wherein sheets separated from a stack by a friction roller (1, not shown) are forwarded by the roller over a support 4 and beneath an endless belt 3 with its lower run inclined to the support to form a space 5 only sufficient for the passage of one sheet, the direction of travel of the lower run being contrary to that of the sheets so that additional sheets which may have been separated are held back, the belt 3 is provided with a strip 6 of a material having a high coefficient of friction and arranged diagonally on its outer surface. With this arrangement, sheets which are torn or with corner edges folded can be passed through the space 5, instead of being held back and causing a holdup in the apparatus. Specification 950,307 is referred to.
Patent GB-1040383-A (GB)
Title: Organic chelates of zirconium
Inventor: FOLL GEORGE EDWARD
IPC: C07F7/00
Filed: 1965-06-25
Abstract: The invention comprises chelates of zirconium with compounds of the general formula Y.CO.CHX.CO.Y, where X is hydrogen or -CN and Y is -OR or -CR3, when X is hydrogen or Y is OR1-CR3 or -CH3, where X is -CN, and R is an alkyl radical.  They may be prepared by reacting an organic compound of the general formula Y.CO.CHX.CO.Y with a zirconyl salt, preferably in a diluent or solvent which is a non-solvent for the product and preferably in a buffered system.  The organic reactant may be employed as the alkali metal salt of its enol form, for example, by using said reactant in solution in the appropriate metal hydroxide. Specified zirconyl salts are the chloride, nitrate and acetate and specified solvents are distilled water and methanol. Dipivaloyl methane employed as a reactant is purified prior to use by conversion into the cupric salt which was recrystallized from hot aqueous ethanol, the recrystallized salt was dissolved in ether and the solution extracted with aqueous HCl, the ether layer was evaporated to dryness and pure dipivaloyl methane obtained on distillation of the residue.ALSO:Propylene oxide is polymerized by addition to a catalyst solution formed by heating together (a) zirconium tetra-(dipivaloyl methanate), heptane and aluminium triethyl or (b) zirconium tetra - (3 - cyanoacetylacetonate), benzene and aluminium triethyl.  Similarly, propylene oxide and methyl methacrylate are polymerized to form poly-(propylene oxide) and polymethyl methacrylate by addition of a mixture of propylene oxide and methyl methacrylate to a solution formed by heating together zirconium tetra-(diethyl cyanomalonate), heptane and aluminium triethyl.
Patent GB-177814-A (GB)
Title: Improvements in machines for making hollow concrete building blocks
IPC: B28B7/18
Filed: 1920-09-23
Abstract: 177,814. Marks, E. C. R., (Aktiebolaget Lean). Sept. 23, 1920. Moulds; tamping-machines.-A machine for moulding hollow concrete building-blocks between male and female dies comprises a female die 8 movable vertically above a fixed table 5 on which a loose pallet 36 rests and a male die 10 carried by a spring-supported frame. The male die is reciprocated on pairs of rollers 15 running on the sides of shafts 3 and is held in its lowest position against the tension of the springs by levers 19 having catches 20 adapted to engage projection 18 and released by a hand-operated cam in the braces 11 or base 5. The female die 10 is raised from the cast block by operating the arm 25 and pedal 26 so as to raise the braces 11 by levers 12 which, in order to ensure a uniform motion of the die and to allow adjustment, are constructed respectively as shown in Figs. 6 and 9. The downward motion of the upper die is limited by a pneumatic device 35 comprising preferably an air cushion in which the air is confined over mercury, oil, or glycerine.
Patent GB-158363-A (GB)
Title: Improvements in and relating to electric resistance units
IPC: H01B7/16
Filed: 1919-11-04
Abstract: 158,363. British Thomson - Houston Co., Ltd., (General Electric Co.). Nov. 4. 1919. Wire and ribbon resistances, embedded and encased.-A heating-element consists of a wire 1 wound on but insulated from a metal support 10 which is enclosed in a metal sheath 17 filled with powdered insulating-material, the diameter of the sheath being reduced and the insulating-material compacted by swaging or rolling. The turns of the wire may be in contact with one another when first wound, as shown in Figs. 4 and 5, the turns being subsequently separated and the insulating- material being forced between them by the rolling process as shown in Fig. 6. The element is made by first covering the support 10 with powdered insulating-material such as magnesium oxide moistened with a solution of sodium silicate, the support being placed in a two-part mould and the insulating-material being forced into the mould round the support by means of a die. The mould is then opened and the support removed and dried. The support is formed with a shoulder 11, and a metal ferrule 14 is secured to the insulating-material while in the mould, the completed support and insulating-material and wire wound thereon being shown in Fig. 4. A ring 16 holds the wire in position at the lower end. The support is then enclosed in the sheath 17, which is closed at the bottom by a washer 18 insulated from the core. The sheath is then filled with powdered material such as dry magnesium oxide and the upper end temporarily closed by a washer 19. The whole is then subjected to a reducing process such as swaging or rolling, and the upper end of the sheath is cut off to remove the washer 19. A steel washer 20 is then placed over and in contact with the sleeve 14 and a second washer 22 is placed over the core 10 as shown in Fig. 6, the two washers being provided with terminals 21, 25, the terminal 21 passing through a slot 23 in the washer 22. The core 10 is riveted over as shown at 24 to hold the whole together. Specification 144,767 is referred to.
Patent GB-693883-A (GB)
Title: Improvements in belts for sanitary towels
Inventor: ADAMSSON GOERAN BERTIL GERHARD
IPC: A61F13/64
Filed: 1951-11-20
Abstract: 693,883. Catamenial appliances. ADAMSSON, G. B. G. Nov. 20, 1951 [Nov. 27, 1950; Feb. 15, 1951], No. 27160/51. Class 81 (ii). A. support for a catamenial pad comprises a pouched strip of waterproof material carried on a girdle and having means for securing the pad. The impervious strip 2 is pouched by means of elastic cords 4 and is secured to diametrical points on a waist band 1. It has ribbons 5 with buttons 6 or, alternatively, tape bands for locating the pad. Leg straps 8 supported on side straps 9 may also be provided.
Patent GB-622669-A (GB)
Title: Improvements in or relating to multi-stage centrifugal fans or pumps
IPC: F04D1/06
Filed: 1946-09-10
Abstract: 622,669. Centrifugal pumps. MICKLETHWAIT, E. W. E. (Sulzer Freres Soc. Anon.). Sept. 10, 1946, No. 27164. [A Specification was laid open to inspection under Sect. 91 of the Acts, March 17, 1947]. [Class 110(i)] A multi-stage centrifugal fan or pump has a supporting pedestal 18 secured to a cover 14 of the pump and consisting of a base portion 21 and a tapering body portion 32 open towards the pump cover 14, the axis IV of the tapered portion 32 being inclined to the axis of the pump. The Specification as open to inspection under Sect. 91 comprises also a multi-stage pump in which the parts which conduct the medium from one stage to the next are provided with blades and are cast without cores having to be inserted into the moulds. This subject-matter does not appear in the Specification as accepted.
Patent GB-933390-A (GB)
Title: Improvements in process for the treatment of asbestos
IPC: C04B20/08
Filed: 1961-07-26
Abstract: Asbestos fibres and products produced therefrom containing organic substances which are not removable by water washing are contacted with an aqueous solution of an alkali metal silicate or phosphate and then washed with water.  The contacting is preferably carried out under such conditions of time and temperature as to remove substantially all of said waterresistant organic substances, the temperature preferably being between room temperature and the boiling point of the mixture.  Preferably the silicate or phosphate solution has a concentration of less than 10%.  The silicates that may be used have the formula (Me2O)x(SiO2)y where x is 1 or 2, y is from 1 to 4 or greater and Me is a monovalent alkali metal atom. Phosphates which may be used are ortho and polyphosphates, e.g. primary, secondary and tertiary alkali metal salts, e.g. mono-, di- or tri-salts of monophosphates; Na2H2P2O7; Na3HP2O7; Na4P2O7; Na5P3O10; (NaPo3)x. Mixtures may also be used, e.g. "Calgon" (Registered Trade Mark).
Patent GB-1254554-A (GB)
Title: Novel lubrication composition additives containing phosphorus and sulphur and the preparation thereof
Inventor: JAYNE GERALD JOHN JOSEPH
IPC: C10M137/10
Filed: 1968-06-07
Abstract: 1,254,554. Lubricants. EDWIN COOPER & CO. Ltd. 4 Sept., 1969 [7 June, 1968], No. 27176/68. Heading C5F. [Also in Division C2] A lubricating oil contains as antioxidant additive a compound, or mixture of compounds, of the general formula wherein each R is the same or different and is an aryl or alkaryl group and wherein the aromatic nucleus in the aryl or aralkyl groups may be substituted by one or more halogen atoms or alkoxy groups, the alkyl substituent or substituents when present on the aryl nucleus preferably each containing 4 to 15 carbon atoms. The composition may also contain a tetraalkyl trithiopyrophosphate in which each alkyl group contains 2 to 10 carbon atoms and conventional additives such as an additional antioxidant, a corrosion inhibitor, detergent, dispersant, viscosity index improver, anti-wear additive or extreme pressure additive may also be present, several such additives being specified. The lubricating oil may be a mineral oil, a synthetic hydrocarbon oil or a synthetic ester oil. The tetraaryl trithiopyrophosphates of the given formula are also useful as antioxidants for hydraulic fluids.
Patent GB-988957-A (GB)
Title: Process for curing polyepoxides and resulting products
IPC: C08G59/44
Filed: 1962-07-16
Abstract: A process for making a resinified product comprises reacting a polyepoxide having more than one epoxy group per molecule with an amino-substituted aromatic sulphonic acid amide at elevated temperature and in the presence of an amine accelerator. Specified polyepoxides are the glycidyl ethers of polyhydric alcohols and phenols and novolaks, epoxidized esters of polyethylenically unsaturated monocarboxylic acids, epoxidized esters of unsaturated monohydric alcohols and polycarboxylic acids, epoxidized esters of unsaturated alcohols and unsaturated carboxylic acids, epoxidized derivatives of polyethylenically unsaturated polycarboxylic acids, epoxidized polyesters of unsaturated polyhydric alcohols and/or unsaturated polycarboxylic acids or anhydrides, epoxidized polyethylonically unsaturated hydrocarbons, epoxidized polymers and copolymers of diolefines and glycidyl-containing nitrogen compounds. Preferred amino-substituted aromatic sulphonic acid amides are those of the formulae <FORM:0988957/C3/1> and <FORM:0988957/C3/2> where x and y are integers, R is an alkyl group having 1 to 4 carbon atoms and z is 1 to 4. Many amine acceleratots (which may be in the form of their salts) are specified.  Fillers, e.g. asbestos, alumina, iron oxide or sand, synthetic resins, e.g. polyamides, polycarbonates, formaldehyde polymers, urea- and phenol-formal-dehyde resins, polyacetals, polyvinyl and rubbers may be included in the compositions, as may inert solvents and diluents, many of which are specified.  Examples are given. Specification 730,670 is referred to.
Patent GB-844126-A (GB)
Title: Improvements in or relating to circuit arrangements for stereophonic reproduction including potentiometric devices
Inventor: BUEREN MENKO VAN
IPC: H03G3/04
Filed: 1958-08-26
Abstract: 844,126. Stereophonic systems. PHILIPS ELECTRICAL INDUSTRIES Ltd. Aug. 26, 1958, No. 27337/58. Class 40 (4). [Also in Group XXXVI] In a circuit arrangement for sterophonic reproduction, input signals from preceding stages 11 and 12 of the two channels are applied one to each track of the potentiometric device 1 (see Group XXXVI). The outputs from the wipers 4, 5 are fed through amplifiers 15 and 16 to loud-speakers 19, 20 respectively. With the potentiometer wipers set in the position 4<SP>1</SP>, 5<SP>1</SP>, both are on the low-resistance portions of the track 8, 10 and maximum output is obtained from both channels. Rotation of the control knob 6 from this position causes one or other of the wipers to move on to one of the highresistance track portions 7 or 9 and reduces the output of one or other of the channels, depending on the direction of rotation. Rotation of the wipers by more than 90 degrees from the position 4<SP>1</SP>, 5<SP>1</SP> reverses the two channels.
Patent GB-821148-A (GB)
Title: Improvements in apparatus for detecting the presence or absence at a location of a body of material
Inventor: ATTWELL JOHN DENNIS
IPC: G01F23/296
Filed: 1956-09-06
Abstract: 821,148. Hopper level control. BAILEY METERS & CONTROLS Ltd. Sept. 6, 1957 [Sept. 6, 1956], No. 27338/56. Class 78 (1). [Also in Groups XVIII and XXXV] Apparatus for indicating the presence or absence at a chosen level of liquid in a tank or a body of material such as sand or coal in a hopper 2 comprises a mild steel rod 5 welded at its mid-point into a hole in a plate 4 which closes an aperture 3 in the container wall at the chosen level, the end of the rod projecting into the container. A mild steel casing 7 is secured to the plate 4 and is of such length that the outer end of the rod 5 projects through an aperture 8 in the end of the casing. A solenoid 9 surrounds a part of the rod within the casing 7 and is energized by an oscillatory electronic amplifying system (see Group XXXV) to vibrate the rod longitudinally at its lowest natural frequency. When the liquid or material level is below that of the rod, the rod vibrates freely at its maximum amplitude and no indicating or control signal current is produced by the amplifying system. When the vibrations are inhibited by the presence of liquid or material at the rod level, a current output from the system actuates a visible or audible high-level alarm or/and initiates control operations connected with the movement of liquid &c., into or out of the container. The rod may also be positioned at a low level and the system modified to give a lowlevel alarm and control. If the level of a material such as wet cement which may adhere to the rod is to be indicated or controlled, the rod is enclosed in a flexible envelope of such thickness that it collapses on to the rod when material is present but otherwise stands clear thereof. Furthermore, the vibrating rod may be disposed above the maximum level of material and be contacted by a rod projecting from a float carried on the material surface when the control level is reached.