baber/WOPTO huggingface dataset:
Patent GB-267016-A (GB)
Title: Work-clamping mechanism for sewing machines
IPC: D05B3/06
Filed: 1926-09-15
Abstract: 267,016. Fairweather, W., (Singer Manufacturing Co.). Sept. 15, 1926. Buttonhole and eyelethole sewing- machines.-Work-clamps. The lower clamp-plate is provided with an auxiliary clamping member which fills the slot left in the plate to allow the movement of the needle-throat out of the way of the cutting jaws. The device is described as applied to an eyelet-hole sewing-machine having upper clamping jaws 9 and cutting jaws 17, 18 of known type. The lower clamping plate 8 is formed with a slot 39 to allow the movement of the needle-throat 33 on its pivoted supporting arm 36 under the pressure of the advancing cutting jaw 17. The slot 39 is filled, in proximity to the throat-plate, by a plate 40 supported by a spring-pressed lever 41 so that it may be pressed back by the movement of the needle-throat and return to provide a lower work-clamping surface during the stitching. In a modification, Fig. 9, the slot in the plate 8 is enlarged and is occupied by a pair of spring- stressed levers 46 bevelled at 50 to allow the needle-throat to force them apart.
Patent GB-1339459-A (GB)
Title: Gas lighting lamp
IPC: F21L19/00
Filed: 1971-04-19
Abstract: 1339459 Flash back igniters; supporting mantles; gas lamps SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 19 April 1971 [4 March 1970] 22818/71 Headings F4F F4R and F4T A gas lighting lamp comprises a tubular burner 4 and a flash back ignition tube 5 which extend coaxially with the tubular burner and which debouches in the neighbourhood of the fuel mixture outlet of the tubular burner into a chamber 14 defined by a mantle 15. Gas is supplied via a calibrated orifice 10, entraining air through orifices 12 and forming in hollow part 11 a combustible mixture which flows out through orifices 13. Part of this mixture flows through orifices 16 and up the ignition tube 5 to end 17 where a flame is applied to ignite the mixture. Since the diameter of tube 5 is chosen such that the flame propagation velocity is greater than the gas flow velocity, the flame front descends to chamber 14 and combustion stabilizes inside the mantle 15. A diffusing glass 1 is retained by a support 2 and flexible arms 23 which are attached to a cap 3, and the lamp may be dismantled by removing a pin 21. The ignition tube 5 may be made integral with the tubular burner 4 and may also serve as a support for part of or the whole enclosure protecting the burner and/or as a support for a carrying handle.
Patent GB-704242-A (GB)
Title: Looms with stationary weft supply
IPC: D03D47/00
Filed: 1950-10-18
Abstract: 704,242. Shuttleless looms. FROST, W. H Jan. 18, 1952 [Oct. 18, 1950], No. 22833/50. Class 142(2) In a loom, of the kind described in Specification 614,466, loops of weft are inserted from each side of the shed alternately by two needles operated from one rotary cam 3. driven at the same speed as the bottom shaft and having two grooves 5, 7. A carriage 15 carrying a needle 11 is operated by a roller 16 on the carriage engaging the groove 7. A carriage 19, engaging a guide 14 and carrying a needle 9, is connected by a rod 28 to a carriage 17 operated by a roller 18 thereon, engaging the groove 5. Two needles, one above the other, may be mounted on each of the carriages 15, 19.
Patent GB-516948-A (GB)
Title: Improvements relating to gas fired furnaces
IPC: F23D99/00
Filed: 1938-08-03
Abstract: 516,948. Air preheaters. STANWORTH, S., and STANWORTH, J. Aug. 3, 1938, No. 22900. [Class 64 (i)] Air supplied under pressure to a gas-fired furnace F for melting or heating metals is passed between a heat-resisting metal tube H and a refractory core J formed with radial passages j leading to a passage j<2> entering the furnace tangentially, and the products of combustion escape from the furnace through an opening d to an annular space M between the tube H and a casing K. The tube is suspended in the casing by a bolt h' surrounded by a spring h'. The reduced top h of the tube slides in a cap k<2> to which the-air supply pipe L is connected. The valves controlling the air and gas supplies are connected by links which may be adjusted to so set the valves that they supply the correct proportions of gas and air.
Patent GB-936694-A (GB)
Title: Electromagnetic machinery
IPC: H02K7/14
Filed: 1961-06-26
Abstract: 936,694. Dynamo-electric machines. HIGH VOLTAGE ENGINEERING CORPORATION. June 26, 1961 [June 29, 1960], No. 22987/61. Class 35. An induction generator, Figs. 8-10, includes a shaft 1 upon which are mounted a number of magnetic rotor discs 2 arranged to rotate between segmental stators 3A which form an elongated magnetic circuit, or circuits, extending parallel with the shaft so that the flux lines are intersected by the rotor disc upon rotation of the shaft, the stators being linked by armature coils arranged in series connection and interspersed between layers of insulating material. Referring to the detailed cylindrical section, Fig. 1, each segmental stator includes two pair of polepieces 3 and end pieces 4. Within each rotor disc, Fig. 2, are mounted angularly spaced sectors 5 of magnetic material. The polepieces 3 and end pieces 4 are provided with teeth 6, which are angularly spaced such that when sectors 5 in disc 2 are in alignment with the teeth 6 of one polepiece in each pair, there are no sectors 5 in alignment with the other of the pair. Thus as the shaft rotates the flux swings back and forth between the two stators in each pair. Armature coils 7 separated by insulating layers 8 are wound about each polepiece, there being three layers to each coil. The armature coils between adjacent discs are helically connected in series, the connections including, if required, rectifiers to produce a D.C. output, Fig. 4 (not shown). Energization of the polepieces is provided by field coils 9 associated with each pair of polepieces, energization of these coils being provided by excitation coils 11 surrounding each polepiece. In a moving pole generator, Fig. 5, a larger number of magnetic circuits are provided, comprising stator poles 13, end pieces 17 and rotor sectors 15. The rotor sector 15 are either permanently magnetized in an axial direction, or else field coils 16 provided. Armature coils 17 are provided to link the stator poles. The rotors and stators may be interchanged, and the machine of Fig. 1 may also be operated as a synchronous motor by feeding alternate current into the first and third row of armature coils. Similarly, if D.C. pulses are fed in the machine may be stepped round in a controlled manner. The rotating discs are mounted on an insulating shaft, Fig. 7 (not shown), comprising alternate cup-shaped insulating and metal sections as described in Specification 921,399 [Group XXIV].
Patent GB-1158212-A (GB)
Title: Method and Apparatus for the Contour Cutting of Cardboard, Paper or Plastics Sheeting.
Inventor: LANG FRIEDRICH
IPC: B26F1/40
Filed: 1967-05-18
Abstract: 1,158,212. Cutting apparatus. F. LANG. 18 May, 1967 [30 Sept., 1966], No. 23034/67. Heading B4B. Cutter means for use in contour cutting of cardboard, paper or plastics sheeting comprises a steel strip 2 secured by an adhesive foil to the periphery of a rotatable cylinder 1, the strip 2 having a single cutting blade 3. The blade 3 has side wall surfaces which each define, with the face of the strip 2, an angle of about seventy degrees. In a modification, the steel strip (4), Fig. 2 (not shown), has two cutting blades (5).
Patent GB-615185-A (GB)
Title: Sizing yarn
IPC: D06M15/41
Filed: 1946-08-02
Abstract: Nylon yarn is sized with an aqueous alkaline composition (pH 6-10) containing casein, a water-soluble sulphonated phenol formaldehyde resin, a liquid non-drying long chain fatty acid, e.g. oleic or ricinoleic acid and a preservative.  Suitable alkalies are borax, sodium carbonate, sodium phosphate, ethylene diamine or triethanolamine.  Suitable preservatives are phenol, trichlorophenol, pentachlorophenol, or methyl and propyl p-hydroxybenzoates.  White mineral oil or arachis oil may be added to the composition.  A swelling agent for the nylon, e.g. toluenesulphonamide may also be included.  The casein preferably amounts to 4-9 per cent of the size by weight.  The resin is 10-50 per cent of the weight of the casein and the lubricant (calculated as free acid) 10-30 per cent of its weight.  The resin may be prepared as described in U.S.A. Specifications 1,237,405 and 1,254,364.  Typical compositions are 6 per cent acid casein; 0.5 per cent sodium carbonate, 1.0 per cent oleic acid; 2.0 per cent resin solution (40 per cent solids); 0.2 per cent methyl p-hydroxyphenol, 0.1 per cent propyl p-hydroxybenzoate; 90.2 per cent water.  Specifications 461,236, 461,237, 474,999 and 557,783 are referred to.ALSO:Nylon yarn is sized with an aqueous alkaline composition (pH 6-10) containing casein, a water-soluble sulphonated phenol-formaldehyde resin, a liquid non-drying long chain fatty acid, e.g. oleic or ricinoleic acid and a preservative. Suitable alkalies are borax, sodium carbonate, sodium phosphate, ethylene diamine or triethanolamine.  Suitable preservatives are phenol, trichlorophenol, pentachlorophenol, or methyl and propyl p-hydroxybenzoates.  White mineral oil or arachis oil may be added to the composition.  A swelling agent for the nylon, e.g. p-toluene sulphonamide may also be included.  The casein preferably amounts to 4-9 per cent of the size by weight.  The resin is 10-50 per cent of the weight of the casein and the lubricant (calculated as free acid) 10-30 per cent of its weight. The resin may be prepared as described in U.S.A.  Specifications 1,237,405 and 1,254,364.  In the examples, sizes are applied on a single end sizing machine to yarns to be knitted.  The sized yarn is dried in air and on its way to the needles passes through a bath of distilled water.  A typical composition is 6 per cent acid casein; 0.5 per cent sodium carbonate, 1.0 per cent oleic acid; 2.0 per cent resin solution (40 per cent solids); 0.2 per cent methyl p-hydroxybenzoate; 0.1 per cent propyl p - hydroxybenzoate; 90.2 per cent water.  Specifications 461,236, 461,237, 474,999 and 557,783 also are referred to.
Patent GB-884411-A (GB)
Title: Improvements in and relating to holders for twist drills and like rotary cutters
IPC: B23B31/38
Filed: 1959-07-04
Abstract: 884,411. Slip couplings. CLOUGH, G. F. G. July 4, 1960 [July 4, 1959], No. 23044/59. Class 80 (2). [Also in Group XXII] The holder 3 of a twist drill or rotary cutter is connected to its socket 5 by a helical spring 15, one end of which is attached to an enlargement 12 of the socket while the other end is formed as a series of clutch coils 17 encircling the holder 3 and tightened thereon by rotation of the socket 5, and the members also have a screw thread connection 7 whereby in the event of seizure of the drill &c. the rotation of the socket results in axial withdrawal of the drill &c. from the workpiece. Such withdrawal may result in the drill driving and/or feeding means being cut off; for example in the arrangement shown in Fig. 3 the drill is fed by a fluid-operated piston acting through rack and pinion gearing 20, 21, 22 and axial movement of the drill holder causes a push rod 28 to unseat a valve 26 and thus exhaust the pressure cylinder 23. In the case of an electric feed movement of the holder opens a microswitch through a pin and slot connection between the holder and socket and an operating lever, Figs. 4-6 (not shown).
Patent GB-939647-A (GB)
Title: Improvements in or relating to a hydraulic relay
Inventor: RAEBER VICTOR
IPC: F15B9/17
Filed: 1961-06-26
Abstract: 939,647. Fluid-pressure servomotor systems. ATELIERS DE CONSTRUCTIONS MECANIQUES DE VEVEY S.A. June 26, 1961, No. 23108/61. Class 135. A fluid pressure servomoter control system includes a casing 8 inside which are arranged two pistons 9, 10 sliding one inside the other, the output signal being provided by the position of the outer piston and the inner piston being hydraulically controlled by the input signal, and the volumes of two chambers 18a, 18b formed between the two pistons remaining substantially equal to each other. In one embodiment, the input signal is applied to the winding 1 of an electromagnet 2 surrounded by a permanent magnet 3 and having members 4a, 4b controlling nozzles 6a, 6b connected to a supply conduit 11 through restrictions 13a, 13b. The unequal pressures produced by movement of the electromagnet 2 from its central position act through conduits 15a, 15b and passages 17a, 17b on opposite faces 19a, 19b of a piston on the valve 10 which moves until centring springs 27a, 27b balance the hydraulic thrust. The movement of the valve 10 relative to the outer piston 9 causes one of a pair of chambers 25a, 25b to be connected to exhaust and unequal flows of fluid from the conduit 11 through a further pair of restrictions 14a, 14b, chambers 20a, 20b and passages 22a, 22b to provide a pressure differential on opposite faces 21a, 21b of the piston 9 so that the latter follows up the movement of the valve 10 until both chambers 25a, 25b are again closed to exhaust. In a modified construction, the chamber 25a and the restriction 14a are omitted while the face 21a has half the area of the fan 21b. The piston 9 in both constructions may operate a slide valve and the members 4a, 4b may be mechanically controlled. Compressed gas or electromagnetic fields may be used in place of the springs 27a, 27b.
Patent GB-755953-A (GB)
Title: Improvements in loose leaf binders
IPC: B42F9/00
Filed: 1953-08-21
Abstract: 755,953. Loose leaf binders. STERLAND, W. D. Aug. 23, 1954 [Aug. 21, 1953], No. 23122/53. Class 146(1) In a loose leaf binder, the leaves 6 are provided with at least one corrugation 7 adjacent and parallel to one edge to rest with each other and with similarly positioned ribs 2 and grooves 4 in the binder covers 1, 3 (Fig. 1). A member of different kinds of binder are described. As shown in Fig. 1, the covers 1, 3 are pulled together by a spring 8 and the top cover 3 is weakened at 5 to form a hinge. Alternatively a C-spring may be used with hinged arms at the ends of the spring for releasing the jaws. As shown in Fig. 5, the sheets 6 are provided with slots 14 between two corrugations 7 and the covers 16, 15 with slots 14 between ribs 2, 2a and grooves 4, 4a respectively, all being filed on a split ring 13, pivoting open to release the sheets. The covers in another construction are provided with posts for engaging holes in the sheets 6. As shown in Fig. 8, the sheets 6 are filed between stiff sheets 24, 25 connected by an extensible back 26 and provided with metal strips 31, 32 secured by adhesive to form ribs and grooves, the whole being inserted in a spring back binder with covers 22, 23 joined to'the ends of a C-spring 21. The sheets 6 may have the cover of the binding edge cut away to assist insertion of the sheet. The corrugations 7 may be provided.in a separate strip secured to the sheet 6 by adhesive or hy tongues engaging holes in the sheet.
Patent GB-1343637-A (GB)
Title: Recovery of platinum group metals
IPC: B01J20/32
Filed: 1971-04-19
Abstract: 1343637 Coating ceramic with gold: recovering Pt group metals ENGELHARD MINERALS & CHEMICALS CORP 19 April 1971 [5 March 1970] 23128/71 Headings C7D and C7F A process for recovering platinum metals entrained in a hot gas stream comprises passing the gas through a gettering device in the form of an inert ceramic honeycomb structure 1 which is coated with a getter containing gold to absorb the platinum, thereafter removing the coating and platinum from the structure 1 with an acid, and recovering the gold and platinum from the acid. In a method of producing a gettering device having a uniform coating comprising gold, the said honeycomb structure, having a previously determined total volume of the channels 4, is contacted by a volume of an organic solution of gold equal to said total volume, said solution comprising an organic gold compound in ahighly volatile organic solvent, the volatile organic solvent being evaporated and the structure being then fired to deposit the uniform coating of gettering material comprising gold. The hot gas stream carrying the platinum emanates from a catalyst bed used e.g. for producing nitric acid, hydrocyanic acid or in an ammonia-oxidation reaction wherein a cataclytic gauze made of platinum-rhodium alloy is used. A weld-barrier screen may be placed between the catalyst and the getter. The getter coating may also inculde, silver, palladium, platinum and alloys thereof, and minor amounts of rhodium, ruthenium and iridium to impart thermal stability to the gold coating. Base metals may also be added to the gold and to improve the adherence and coherence of the coating, oxides of bismuth, chromium, silicon, vanadium and tin, and mixtures thereof, are added. The getter honeycomb structure is formed from an inert ceramic e.g. alpha-alumina, zirconmullite, high aluminas and glass-ceramics. Commercial materials Cercor and Alsimag are quoted as examples. The volatile organic solvent used with the gold compound can be chloroform 3, ethyle acetate, benzene and carbon tetrachloride. The gold and platinum are removed from the gettering structure by aqua regia acid.
Patent GB-232339-A (GB)
Abstract: 232,339. Carr, G. Jan. 19, 1924. Two - stroke-cycle engines. - Engines with integral power and pump pistons 2, the pump piston working in an annular chamber 8 and compressing on the power stroke only, have the entrance to the transfer passage 14 controlled by automatic or mechanically - actuated valves 19. The bearings 20 for the gudgeon are cast wit'h a cylindrical plug 22 screwed into a recess in the piston.
Patent GB-457623-A (GB)
Title: Improvements in the manufacture of marble
IPC: C04B28/10
Filed: 1935-08-19
Abstract: Synthetic marble is made by calcining marble dust to form a small amount of calcium oxide therein, mixing with an aqueous medium, shaping, and subjecting the moulded mass to the action of carbon dioxide.  The aqueous medium may be lime water or a solution of aluminium oxalate, sulphate, silicate or hydrate, magnesium sulphate or silicate, potassium silicate, oxalic silicate, tartaric silicate or arsenic silicate or combinations of these.  Differently coloured masses may be roughly mixed to simulate natural markings.  The resulting product may be rendered frost proof and moisture proof by immersing it in a solution of barium hydrate, drying, and then immersing it in a solution of magnesium or zinc fluoride or a mixture thereof, or by immersing it in a solution of a double fluoride of silicon and a metal, e.g. magnesium or zinc silicon fluoride, or in a solution of silicic acid or silicon fluoride or barium water.
Patent GB-496806-A (GB)
Title: Means for destroying growing bracken and similar weed growths
IPC: A01B31/00
Filed: 1938-08-08
Abstract: 496,806. Destroying bracken &c. HOLT BRACKEN BREAKER CO., Ltd., and HOLT, V. H. Aug. 8, 1938, No. 23351. Addition to 455,326. [Classes 6 (i) and 6 (iii)] To prevent the bar 8 described in the parent Specification from over-running and becoming entangled in the harness chains while the device is being drawn down-hill or round a corner, it is provided with at least one shackle or equivalent means extending forward as a rigid extension so as to serve as a skid when the tension on the harness chain is relaxed. As shown, yoke-like members 1, 2, each comprising a metal strip having a semicircular part 3 and wing portions 4, 5, are secured by bolts and nuts 6 so as to encircle a turned-down part 7 of the breaker bar 8. The wing parts 5 are longer than the parts 4 and are attached to the end link 10 of the harness chain or a long wing portion may be provided on one only of the yoke-like members, the co-operating member having two short portions. The extended members may be castings or may be rigid members secured rigidly to the shackles or yoke-like members.
Patent GB-1036512-A (GB)
Title: Process and apparatus for the production of monocrystals of nuclear materials
Inventor: BEUCHERIE PIERRE
IPC: C30B23/06
Filed: 1963-06-12
Abstract: <PICT:1036512/C1/1> Single crystals of ceramic nuclear fuel material, e.g. UC, are produced by electro-thermally sublimating the material under sub - atmospheric pressure in a chamber of which the walls are at least in part formed by a body of the material, the vaporizing energy being supplied inductively at high frequency and with field concentration to the walls of said body, and condensing the vapours on portions of the chamber wall which are at a lower temperature. Fig. 1 shows an apparatus suitable for producing said crystals, and comprises an evacuated vessel 1, surrounded by an induction winding 2; element 3 is a field concentrator, namely a double cylindrical element of copper with a radial slot 3a (Fig. 2, not shown), mounted between the winding 2 and the body of UC 5 which is contained in a carrier vessel 4 of BeO. The inner surface of the field concentrator 3c is the same length as the cavity 5d in the UC body but the caps 5b are outside its sphere of action therefore the surfaces 5c are able to act as surfaces on which the UC vapour produced in the cavity can condense to form crystals. Fig. 3 (not shown) illustrates a modified form of the field concentrator, and the chamber has a cap fitted with a pin which projects into the cavity and on which the desired crystals form.
Patent GB-925253-A (GB)
Title: Improvements in or relating to the production of lipids and proteins
Inventor: CHAYEN ISRAEL HARRIS
IPC: A23J1/00
Filed: 1959-07-08
Abstract: A process for the production of proteins and lipids separately from cellular vegetable material containing proteins and lipids comprises introducing the vegetable material suspended in an aqueous liquid carrier, present in a liquid to solid ratio of at least 2:1, into a hammer mill, allowing the material to remain in the mill for from two-thirds of a second to ten seconds, the mill being run at a tip speed of at least 4000 feet per minute, raising the pH of the liquid to dissolve the specifically activated proteins whereby, in the presence of the specifically activated lipids, combination will occur to form a protein-lipid complex, acidulating the liquid to the isoelectric point for the protein or sufficiently near to the said point to precipitate substantially completely the newly formed protein-lipid complex as described in the parent Specification, submitting the aqueous suspension of the complex thus obtained, after mechanical separation of water, to azeotropic distillation with a non polar solvent which may be immiscible with water and thereafter separating the proteins and lipids by solvent extraction.  The dehydrated solids may be first washed by a non polar solvent to remove the bulk of the fatty material and are then extracted with a polar solvent to remove undesired fat soluble material.  Non polar solvents specified are hexane, propane, toluene, xylene and any gasoline fraction.  The polar solvent may be acetone or alcohol.
Patent GB-140707-A (GB)
Title: Improvements in or relating to set screws
IPC: F16B35/00
Filed: 1919-09-24
Abstract: 140,707. Weibull, N. R. M. Sept. 24, 1919. Set-screws; locking set-screws.-A set-screw is provided with a loose point in order that effective pressure may be exerted when the screw is oblique to the surface being pressed. In the construction shown as applied to securing a wheel on a shaft, the screw 6 is hollow and bears upon the spherical surface of a loose point 1. The lower part of the point has an annular or like edge or edges to form a bearing surface. The point may be secured to the screw by a wire &c. holder 8. The lower part of the screw is split as shown at 7 so that, when the screw is tightened on the point, it is expanded and serves to lock the screw in position.