baber/WOPTO huggingface dataset:
Patent GB-900654-A (GB)
Title: A universal metal working press
IPC: B21D37/02
Filed: 1958-07-25
Abstract: 900,654. Cupping. KABUSHIKI KAISHA HARIMA ZOSENJO. July 25, 1958 [Oct. 22, 1957], No. 24088/58. Class 83 (4). A universal metal working press has a framework 1, hydraulic press means 2 mounted on said framework, a cross-head 3 actuated by the press means, struts 4 for guiding the cross-head, an upper die holder 8, a bed 5 for supporting the above elements, the bed having a lower die holder 9, a plurality of adjustable die-forming rods A, B mounted on the upper and lower die holders, a pad 13 secured on an end of each of the rods forming the die surface and a driven shaft 10 for rotating each rod. The shaft is rotated manually or by an electric motor and is of square or polygonal cross-section and engages in a complementary bore in the rod which has a screw-threaded portion 11 in engagement with the die holder. When the rods have been adjusted to form the required die shape the gaps between the die pads are filled with a coagulating agent to provide a smooth die surface for working soft metal sheets.
Patent GB-869093-A (GB)
Title: New benzoxazine derivatives and processes for the preparation thereof
Filed: 1958-07-28
Abstract: The invention comprises compounds of the formula:  <FORM:0869093/IV (b)/1> (wherein R1 is hydrogen or halogen, R2 is halogen and Alkylene is a straight chain alkylene group with 3 to 6 carbon atoms or a branched chain alkylene group with 2 to 6 carbon atoms) and the preparation thereof by the following methods:- (1) condensing salicylamide or a halogenated salicylamide with the aldehyde HCO-Alkylene-R2, advantageously in presence of a condensation agent, which may be concentrated sulphuric acid, or benzene or toluene sulphonic acid or phosphoric acid in presence of a water entraining agent such as benzene or chloroform, and preferably also in the presence of aqueous mineral acid e.g. concentrated hydrochloric acid; (2) as (1), using an acetal of the aldehyde, preferably in presence of an alcohol binding agent e.g. glacial acetic acid, and a condensation agent e.g. concentrated sulphuric acid or a hydrogen halide, and advantageously in presence of a solvent such as chloroform; (3) condensing the appropriate salicylamide with the appropriate b -alkoxy-aldehyde in presence of a hydrogen halide, preferably in presence of an alcohol binding agent; (4) as (3), using an acetal of the aldehyde in presence of a hydrogen halide and an alcohol binding agent.  Processes (3) and (4) may also be effected in presence of a solvent; and (5) condensing the appropriate salicylamide with an appropriate a :b -unsaturated aldehyde in presence of hydrogen halide and water and/or acids as solvents, e.g. glacial acetic acid or propionic acid, preferably at a temperature below 50 DEG C. Examples are given.
Patent GB-1268818-A (GB)
Title: Improvements in co2 flasks
Inventor: PORTNOV BARUCH
IPC: B67D1/04
Filed: 1969-05-13
Abstract: 1,268,818. Gas containers. DAPOR ENG. WORKS Ltd. 13 May, 1969, No. 24311/69. Heading F4P. A bulb for CO 2  gas comprises a flanged neck portion closed by a foil 3, a cap 2 retaining the foil and having a central aperture containing a piercer 4. The cap extends around a flange on the neck portion and is destroyed on its removal for refilling the bulb. Piercer 4 is tubular and allows gas flow from the bulb into a syphon after piercing the foil. Alternatively a longitudinally grooved piercer may be used.
Patent GB-839861-A (GB)
Title: Improvements in or relating to processes for the production of ultra-pure semi-conductor substances and to composite semi-conductors prepared therefrom
IPC: H01L21/00
Filed: 1956-08-08
Abstract: 839,861. Semi-conductors. SIEMENS & HALSKE A.G. Aug. 8, 1956 [Aug. 8, 1955], No. 24343/56. Class 41. A pure semi-conductor substance is made by cathodic reduction of a compound containing a semi-conductor substance maintained in liquid phase on to a solid support which may also be a semi-conductor. A molten solution of alkali metal fluosilicate or fluogermanate may be used and the silicon or germanium electrolytically deposited on a single crystal of silicon, which may be produced by vapour phase decomposition of a silicon compound as described in Specification 809,250. Alternate layers of silicon, germanium, indium or antimony may be deposited, and the composite semi-conductor body submitted to heat treatment, e.g. zone melting, whereby two or more layers are formed into an alloy. The additional layers may be deposited by electrolysis of the molten compound or by vapour phase decomposition as described in Specification 809,250, preferably in the presence of hydrogen. A single crystal may be floated on the surface of the melt and slightly raised as deposition on the underside proceeds. In Fig. 3, a crystal 4 is mounted vertically in molten electrolyte 2 containing silicon, and an electrode 5 is mounted parallel with the crystal 4, and maintained at a constant distance therefrom as deposition proceeds, whereby the crystal grows in one direction only. Molten electrolyte may be replaced by organic compounds of silicon or germanium dissolved in an organic solvent. In a further modification two electrodes, mounted on opposite sides of the crystal are moved outwards, producing a layer on each face of the crystal. With suitably shaped electrodes the crystal is grown in the shape of a disc. A mixture of potassium fluosilicate and fluogermanate is used and maintained at 700‹ C. Impurities, donors and acceptors may be added to the melt. Semi-conductor composite bodies may be formed as alloys of Group IV elements, or combinations of Group III and V or Group II and VI.
Patent GB-668739-A (GB)
Title: Improvements in golf club carriers
IPC: A63B55/60
Filed: 1949-09-22
Abstract: 668,739. Hand trucks. WHEELER, L. W. Sept. 22, 1949, No. 24352/49. Class 108(i) A wheeled golf club carrier has a tubular steel bag frame structure which also forms a chassis for the carrier, the bag frame comprising upper and lower rings 1, 1a, connected by two side tubes 2 and by metal bars 3, 8. An axle 4 is welded &c. to the tubes 2, and arms 5 with mounted wheels 6 are detachably or fixedly fastened one to each end of the axle. As shown in Fig. 1. the arms 5 are detachably fixed by wing nuts, and they may be either held in a fixed predetermined angular position on circular parts, or be angularly adjustable on the axle. The bag frame may be covered with leather or canvas, and a shoulder strap may be fitted so that the bag presents the appearance of an ordinary golf-bag. When the arms 5 are adjustable on the axle 4 they may be aligned with the bag for storage, and the handle 7, which is detachably or otherwise fixed to the bar 8, may also be turned to lie against the bag when the carrier is not in use. Specification 662,541 is referred to
Patent GB-518193-A (GB)
Title: Improvements in and relating to ring packing, of the cup leather type for relatively moving parts
IPC: F16J15/3208
Filed: 1938-08-18
Abstract: 518,193. Piston peeking ; stuffing-box packing. TRUMMLER, P. Aug. 18, 1938, No. 24367. Convention date, Nov. 19, 1937. [Classes 122 (i) and 122 (v)] A ring packing of U- or L-section is provided with a split insert c having a conical surface co-acting with a conical abutment c<2> and pressed axially by a spring d whereby the insert is pressed radially by wedge action against the joint making limb of the packing. The conical abutment may be formed on the opposite limb of a U-section ring or on the wall of a piston or stuffing box in the case of rings of L-section. The insert c may have a complete conical external surface engaging a conical ring r, Fig. 9, and the spring insert and packing ring may be housed in a casing s, whereby the packing may be inserted as a unit in a housing surrounding a shaft.
Patent GB-719631-A (GB)
Title: Manufacture of azo-dyestuffs
IPC: C09B39/00
Filed: 1951-10-18
Abstract: The invention comprises (1) the production of azo dyestuffs by coupling a diazo component in alkaline solutions with a p-aminosalicylic acid of the formula:-  <FORM:0719631/IV(c)/1> and (2) monoazo, disazo and trisazo dyestuffs of the following formulae:- <FORM:0719631/IV(c)/2> and <FORM:0719631/IV(c)/3> where there is at least one solubilising group in one of the residues R; in all the formulae X and Y are hydrogen, chlorine, methyl or sulphonic acid. The disazo and trisazo dyestuffs are made by diazotizing the monoazo compounds and coupling with suitable components, and repeating the process if necessary.  The products may be metallized (especially chromed) in substance or on the fibre, e.g. by the metachrome process.  Examples show the production of the following dyestuffs:- 4-chloro-2-aminophenol --> 4-aminosalicylic acid, 6-nitro-2-aminophenol-4-sulphonic acid --> 4-aminosalicylic acid, sulphanilic acid --> 4-aminosalicylic acid --> 1-phenyl-3-methyl-5-pyrazolone, and sulphanilic acid --> 4-aminosalicylic acid --> 1-naphthylamine --> 2-naphthol.  Other suitable starting materials are listed:- diazo components of the benzene and naphthalene series, end components for disazo (and middle components for trisazo) of the benzene, naphthalene and pyrazolone series, and as end components for trisazo resorcinol, naphthols and phenylmethylpyrazolone.  Substituted 4-aminosalicylic acids are also mentioned.
Patent GB-360509-A (GB)
Title: Valve mechanism for compressors of internal combustion engines in which the compressor and working chambers are contained in one cylinder
IPC: F04B39/08
Filed: 1930-08-14
Abstract: 360,509. Air compressors. LINDEQUIST, S., 20, Nachodstrasse, Berlin. Aug.. 14, 1930, No. 24388. Convention date, Aug. 14, 1929. Addition to 277,669, [Class 8 (i), Air and gases, Compressing &c.]. [Class 8 (i).] Valves and valve gear, arrangement of regulating and controlling compression.-A ported sleeve valve 3 is split at 4 and arranged in the cylinder 1. The valve is operated by a rack 5 actuated by tappets 8. A damping device 10 may be incorporated upon the rack, or only one tappet may be used, the rack being spring returned. Fig. 5 shows the rack operated in one direction by the cam 15 and thrust rod 13 and in the other direction by the cam 32. Alternatively the thrust rod may be pivoted to the bell crank 8 and connected to a connecting-rod attached to a crank. A means for regulating two compressors is described whereby the cams are inclined and moved axially, the operating mechanism being geared to one hand-wheel.
Patent GB-374707-A (GB)
Title: Improvements in filling material or packing for absorption, washing or reaction towers, reflux condensers such as fractionating columns, or the like
IPC: B01J19/30
Filed: 1931-08-31
Abstract: 374,707. Washing gases. HARRING- TON, G., Sylvestris, Harman Water, Bracknell, Berkshire. Aug. 31, 1931, No. 24469. [Class 55 (ii).] Filling material for washing or reaction towers or fractionating columns s comprises units of hollow truncated conical form with the smaller end closed except for one or more perforations O, each unit being formed with longitudinal corrugations C, the depth of which at the larger end is such as to prevent nesting. The base of any corrugation at the large end may be equal in width to that of the small end. The units are of metal, rubber, gauze, natural or synthetic resins or of silicious earth such as porcelain or clay, and may be formed by stamping.
Patent GB-957446-A (GB)
Title: Improvements in the purification of aqueous solutions of alkali salts of aromatic carboxylic acids
Inventor: SAKURAI RYOICHI
IPC: C07C51/42
Filed: 1961-07-06
Abstract: A method for the purification of crude dialkali metal terephthalate, produced from alkali metal aromatic carboxylates by known thermal rearrangements, comprises, either before or after dissolving the product in water, adding an inorganic or organic acid stronger than carbonic acid or the acidic or neutral salts of such acid to produce an aqueous solution pH 5.8-10.0 of the rearrangement product and filtering the solution. There may be added prior to the filtration step 0.001-5.0% wt. of water-soluble organic substance, MW at least 10,000; and/or 0.5-10 p.b.w. powdered porous material as filter aid.
Patent GB-821758-A (GB)
Title: Process for the attrition of a catalyst
Inventor: BALL GERALD THOMAS
IPC: B01J21/20
Filed: 1957-08-02
Abstract: <PICT:0821758/III/1> A process for the attrition of a fluid solid catalyst or supported catalyst comprises entraining the catalyst in a stream of moving gas passing through a nozzle, and allowing the stream of gas and catalyst entrained therein to impinge upon a target, the linear velocity of the gas and the distance of the nozzle from the target being such that there is an increase in the proportion of catalyst particles in the size range of 20 to 40 microns.  Preferably, the linear velocity of the gas is 35 to 250 feet per second and the distance of the nozzle from the target is from 1 to 10 inches.  In the form shown, the pipe 1 has a diameter of 3 to 5 inches, the angle ABC is 18 to 23 degrees, the target 4 is 1/4 to 1 inch thick, the diameter of the central portion of the target is 1 1/2 to 2 inches, the diameter of the nozzle 2 is 1 1/2 to 2 1/2 inches and the nozzle to target distance is 2 to 3 inches.  The process may be operated at an air flow rate of 5000 to 30,000 S.C.F.H.  The invention may be used to attrite catalysts in which (a) the catalyst particles have a size range from 0 to 200 microns, (b) the catalyst contains more than 19 per cent particles above 80 microns in size and (c) the catalyst has an attrition value from 0.5 to 10.  To facilitate attrition, the surface of the particles may have carbon deposited thereon.  The gas used for the process may be air, carbon dioxide, steam, nitrogen or hydrogen.  Suitable catalysts are stated to be platinum or palladium upon a support such as alumina, or a Group VI metal oxide such as molybdenum oxide, chromium oxide, tungsten oxide or a Group V metal oxide such as vanadium oxide or mixtures thereof, preferably dispersed upon a support or spacing agent such as activated alumina, alumina gel, or zinc aluminate spinel. Preferred catalysts contain about 0.2 to 2.0 wt. % platinum upon alcoholate alumina or about 5 to 15 wt. % molybdenum oxide or from about 10 to 40 wt. % chromium oxide upon a suitable carrier.  If desired, minor amounts of stabilizers and promoters such as silica, calcium oxide, ceria or potassia can be included in the catalyst.
Patent GB-1000186-A (GB)
Title: A method of bonding a polyolefin surface to a porous substrate and products thereof
IPC: B32B27/00
Filed: 1962-06-26
Abstract: 1,000,186. Improving laminate adhesion. NATIONAL DISTILLERS & CHEMICAL CORPORATION. June 26, 1962 [July 7, 1961], No. 24543/62. Heading B5N. Polyolefine surfaces are treated so that they can be bonded to porous substrates by sodium silicate adhesives, first physically to promote adherence, e.g. by flame or electrostatic treatment and secondly by coating with polyvinyl acetate incorporating at least one of aluminium, zinc, or magnesium chloride or bromide. The substrate may be paper, kraft paper, boxboard cloth, felt, foil or Cellophane (Trade Mark). Two layer laminates are described. The polyolefine, which may be polyethylene or polypropylene, may be extruded on one or both sides of a porous substrate, e.g. paper, before treating the exposed surfaces as above and applying further porous substrate layers to give multilayer constructions. The metal salt is preferably added to an aqueous solution of the polyvinyl acetate before application to the polyolefin surface by brush, spray, dip or knife methods.
Patent GB-1353249-A (GB)
Title: Lubricants
IPC: C10M169/00
Filed: 1971-04-19
Abstract: 1353249 Polycarbonate esters BAYER AG 19 April 1971 [28 March 1970] 24543/71 Heading C2C [Also in Division C5] The examples describe preparing carbonic acid esters of the general formula in which R<SP>1</SP> and R<SP>2</SP> are hydrogen or an alkyl, alkenyl, aralkyl, acyl, aryl, alkoxycarbonyl or aryloxycarbonyl group, n is 2 to 300 and X is an alkylene radical containing 3 or more carbon atoms in the main chain and may be interrupted by one or more hetero-atoms or by one or more carboxylic ester, carbamoyl, urethane, urea or tertiary amino groups or X is a cycloalkylene, aralkylene or arylene group, by reacting diphenyl carbonate with (a) triethylene glycol optionally with trimethylol propane or 1,6- hexane diol, (b) tetraethylene glycol, (c) 1,6- hexane diol, (d) polyethylene glycol optionally with n-decanol and (e) the reaction product of adipic acid and diethylene glycol.
Patent GB-217115-A (GB)
Title: Improvements in or relating to portable fire extinguishers
IPC: A62C13/00
Filed: 1923-10-03
Abstract: 217,115. Krauss, F. E., and Graaff, W. Oct. 3, 1923. Portable pressure reservoirs.-A portable fire extinguisher in which the extinguishing liquid is permanently under pressure is sealed both by a screw-down valve or a cock and by a metal seal which is torn by the valve or cock when it is opened. The metal seal a is soldered to the top of a tubular extension on the valvei socket b and to an angular part of the valve stem c so that it is torn when the valve is turned. The valve packing disc and the metal seal a mav be made of an easily fusible metal: such as Wood's metal.
Patent GB-439584-A (GB)
Title: Improvements in and relating to mattresses
IPC: A47C27/06
Filed: 1934-08-29
Abstract: 439,584. Sectional mattresses. FINESTONE, H. G., 23, Gildart Street, Liverpool. Aug. 29, 1934, No. 24830. [Class 52 (iv)] One part of a sectional mattress is shaped to act as a bolster 3. The sections are preferably of "spring - interior " construction.
Patent GB-1348847-A (GB)
Title: Device for the audible reproduction of electrophysiological signals
IPC: A61B5/332
Filed: 1971-04-19
Abstract: 1348847 Electro-chemical apparatus PHILIPS ELECTRONIC & ASSOCIATED  INDUSTRIES Ltd 19 April 1971 [25 March 1970] 24852/71 Heading G1N In apparatus for audibly reproducing electrophysiological signal voltages produced in the human body, e.g. electro-cardiogram voltages, an audio-frequency carrier wave derived from an oscillator 5 is frequency modulated in accordance with the strength of the signal voltages, a pulse generator 7 is responsive to the modulated carrier wave to provide audio-frequency pulses, a filter device 6 filters the pulses to produce a complex audio-frequency tone, the characteristics of the filter device being varied in accordance with the strength of the signal voltages to vary the frequency content of the tone, and a device 12 converts this tone into an audible sound. By selecting the characteristics of the devices 6 and 7, sounds simulating the human voice may be produced. As shown in Fig. 2, the apparatus may be contained in a portable case 13 with electrodes 1, 2, 3 protruding. The voltages may be pre-recorded.
Patent GB-232125-A (GB)
Title: Improvements in roller bearings
IPC: F16C43/06
Filed: 1924-10-20
Abstract: 232,125. Burnet, W. Oct. 20, 1924. Roller bearings. -- The rollers 6 of a bearing are guided by two or more ribs 2, 4 on the outer and inner races, the ribs engaging grooves 7 on the rollers 6. To facilitate assembly the ribs have excisions 5 which mav be closed after assembly by screws 8. The space between the ribs acts as an oil bath.
Patent GB-296410-A (GB)
Title: Improved support for the electrode systems of electronic valves
IPC: H01J19/50
Filed: 1928-08-30
Abstract: 296,410. Loewe-Audion Ges., and Roemhild, E. Aug. 31, 1927, [Convention date]. Vacuum tubes.-The insulating support of an electrode system is subdivided and the respective electrodes are supported by corresponding subdivisions, to prevent heating of those supports over which leakage might occur through the impairment of the insulation. In the arrangement shown, glass beads 5, 9, 18 support respectively the grid 6 and the anode 1, the, heating-wire 12, of an indirectlyheated cathode, and the cathode 13. The beads are mechanically connected together by wires 16 - - 20. Another arrangement is described wherein two beads only are used, one of which serves the purpose of the two beads 9, 18. Specifications 296,005 and 296,375 are referred to.
Patent GB-377482-A (GB)
Title: Bath-head-rest
IPC: A47K3/12
Filed: 1931-09-05
Abstract: 377,482. Bath head rests. DANIEL, A. W., 25, Lake House Road, Wanstead, London. Sept. 5, 1931, No. 24971. [Class 26.] A bath head-rest is made of rubber and is provided with a concave face 2, which when applied to the bath serves to secure the device in position. The opposite face may also be concave for the reception of the user's head. According to the Provisional Specification, the head-rest is applied to the bath by means of a rubber suction-pad or pads.
Patent GB-1215359-A (GB)
Title: Wheel brake device for perambulator, doll's pram, light cart and the like
Inventor: STRANDHAGEN ODD
IPC: B62B5/04
Filed: 1968-05-24
Abstract: 1,215,359. Brakes. GREPA OG MJELVA FABRIKKER AS. 24 May, 1968, No. 24971/68. Heading F2E. A brake for a perambulator, light cart or the like comprises two flexible rods 5, 6 pivotally mounted adjacent each end in supports 14, 15 fixed on side portions of a frame 1 of the perambulator, the ends 7, 8 of the rods being, crank-shaped to form the braking elements. The brake is applied by movement downwards of the end of a pedal arm 12 of a lever 9 fixed at its other end to the rod 5 and pivotally connected at 11 to a second lever 10 fixed at one end to the second rod 6. Downward movement of the pedal moves the pivotal connector 11 from a non-operative position above the plane of the rods 5, 6 to a stable position below the plane and also causes rotation of the rods 5, 6 to move their ends 7, 8 against the perambulator wheels 4, with slight bending of the rods towards each other. The brake is released by a light kick against the underside of the pedal when the rods will be returned to their original positions which return movement is assisted by the resiliency of the rods. A notched rail may be provided to receive resiliently the pedal arm. In an alternative embodiment, for braking two of the wheels, only one of the rods is provided with braking ends. In the non-operative position of the brake, the end 16 of the lever 10 contacts the pedal arm to prevent noise.