baber/WOPTO huggingface dataset:
Patent GB-534528-A (GB)
Title: Improvements in or relating to the controlling of contra-rotating variable pitch airscrews
IPC: B64C11/30
Filed: 1939-07-25
Abstract: 534,528. Variable pitch airscrews. FAIREY AVIATION CO., Ltd., and WRIGHT, M. E. A. July 25, 1939, No. 21651. [Class 114] In order to correct slip stream conditions in the case of contra-rotating variable pitch airscrews driven by separate engines, where one engine is operating at a higher power than the other one an aerodynamic device is mounted in the slip stream and controls the relative pitch of the airscrew. The vane in the slip stream controls the three-way valve h, Fig. 5, the passages m, n in which may communicate the pressure ducts p, q with either of the passages p, s, the remaining passage being connected to exhaust t. The layout of the hydraulic circuit, shown in Fig. 7, shows the hydraulic leaks from the valve j to the forward and rear ends of the pitch adjusting mechanisms d, e as well as valves u, w by which the pitch may be manually controlled. In a modification, the variations of the slip stream established by a pitot tube 16, Fig. 10, are indicated by a differential pressure gauge 17. The valve 18 carrying the pitot tube carries a crank 30 connected to the valve j, which is manually operated to adjust the propeller pitch and the disposition of the pitot tube until the pressure gauge 17 is zeroized.
Patent GB-146004-A (GB)
Title: Tool handles
IPC: B25G1/00
Filed: 1919-09-03
Abstract: 146,004. Smith, C. Sept. 3, 1919. Fixing by chuckgrip sockets.-Tool handles of the kind in which the tang of a file, or like tool, is received between resilient metal tongues fixed to a handle and firmly clamped thereto by a sliding ring or the like, are constructed with enlarged ends 7, thereby forming abrupt shoulders 8 which limit the outward movement of the sliding ring 10. As shown in Figs. 1 and 2 for fixing a file with a tang of rectangular cross-section, the tang is received in an axial opening 2 formed between large tongues 4, and smaller ones 5 which are of slightly less thickness than the file. The tongues 4, 5 are formed by making radial cuts 3 in the bored blank member, which is secured to, or integral with, a handle 1 formed with a shoulder 9. The ends of the tongues 5 are cut off level with the shoulders 8, and after the file 6 is inserted to spring the tongues into conical form the ring 10 is moved towards the shoulders to hold the file securely. The radial slits may be arranged to form tongues of equal size, and four or six tongues may be formed, and the axial bore 2 may be of square, hexagonal, or circular form. The form with four tongues and a circular bore is especially applicable for soldering-irons. The resiliency of the spring tongues is such that the ring 10 can just be slipped over the heads 7 to bring it into the position shown.
Patent GB-675335-A (GB)
Title: Improvements in or relating to magnetic compasses
IPC: G01C17/00
Filed: 1950-09-01
Abstract: 675,335. Magnetic compasses. HANSSEN, H. A. Sept. 1, 1950, No. 21682/50. Classes 97 (ii) and 97 (iii). A magnetic compass, e.g. for determining heading direction or bearing comprises a magnetic needle 14 swinging over a graduated compass dial 7, Fig. 2, provided on a transparent bottom plate 2 and a domed transparent cover 1, Fig. 3, adapted to contain a light refracting liquid so as to form a lens attached to the plate 2 to enclose the needle 14 and dial 7 and mounted concentrically with the dial, a rotatable disc 9, Fig. 3, having graduations 13, Fig. 2, encircled by those of the dial. The disc 9 is mounted to turn on a guide-ring 8 centrally disposed with respect to the dial and is retained by a housing 10 and ring 11. A screw 16 carries a steel point needle 15 on which the needle 14 is journalled. By removal of the screw 16, a clear, light refracting liquid may be introduced into the domed cover 1. The side of housing 10 has a cut-out portion 12, Fig. 3, to permit rotation of disc 9. The cover 1 has an engraved ring at the top portion thereof and an air bubble 19 of about the same diameter as the ring is formed in the liquid to form a box level. The graduations on the plate 2 may be provided on a thin exchangeable plate 17, Fig. 3, located between the plate 2 and the housing 10. The plate 2 may be square or bevelled and, as shown in Fig. 2, preferably provided with distance graduations for maps. The upper surface of the plate is provided with a line 2a extending through the middle point of the compass dial and with lines 2b, 2e forming, with the sides of the plate, right-angled triangles of 30, 60 and of 45 degrees respectively.
Patent GB-1039173-A (GB)
Title: Improvements in or relating to electric secondary cells or batteries
IPC: H01M2/38
Filed: 1963-05-30
Abstract: 1,039,173. Batteries. YARDNEY INTERNATIONAL CORPORATION. May 30, 1963 [May 31, 1962], No. 21699/63. Heading H1B. The positive and negative electrodes and separators of a secondary cell are enclosed in an electrolyte impermeable envelope to separate them from surrounding excess electrolyte. The excess electrolyte 22 is made available to the positive electrode 1 during charging by providing a wick (Fig. 2, not shown) which extends between the electrolyte and electrode, by inflating a bladder (Fig. 3, not shown) immersed in the electrolyte or by holes in the impermeable envelope 4 (Figs. 4 and 5, not shown). The envelope 4 is made of a plastics, e.g. polyethylene, and the electrodes are spaced apart by a cellulose separator 2 which encloses the positive electrode and extends above the electrode and impermeable envelope. The exposed part of the separator is protected from the electrolyte by a polythene sleeve 5. The secondary cell is preferably an alkaline silver-zinc cell.
Patent GB-756949-A (GB)
Title: Improvements in or relating to methods and means for duplicating
IPC: B41L19/00
Filed: 1953-08-06
Abstract: 756,949. Printing surfaces. RITZERFELD, W., and RITZERFELD, G. Aug. 6, 1953 [Aug. 6, 1952], No. 21700/53. Drawings to Specification. Class 100 (2). A mirror-script master for use in a lithographic duplicating machine is produced by preparing one surface of a sheet of waterimpermeable material as to render it receptive to grease or water, placing this surface against a grease-laden sheet and typing, printing or writing on the other surface of the waterimpermeable sheet. The greasy sheet is then stripped off and the master used in a direct printing duplicating machine having provision for applying both a grease repellent liquid such as water and a greasy printing ink. The water renders the grease-free areas of the surface repellent to the ink, the ink being received by, and transferred to the copy sheet from those areas of the sheet which have become grease laden in the typing, printing or writing operation. The water-impermeable sheet may be of a water,impermeable paper or a synthetic material, e.g. a thermoplastic. The greasy sheet may be of paper or cloth, either soaked in, or carrying a layer of a mixture of petroleum jelly and wax and soot. A protective cover layer, e.g. of latex, albumin or wax may be applied to the greasy sheet, portions of this layer also being transferred to the surface of the printing surface. If the script is impressed on the other side in a typewriter without removing the ribbon, the positive of the text to be duplicated appears readably on this surface. This surface may be printed in a printing press with lines, headings, &c. comprising a form, the form being afterwards completed by hand- or typewriting with the greasy sheet still in position. When the greasy sheet is stripped off the completed form will appear in greasy areas on the printing side of the sheet. A convenient assembly consists of the greasy sheet, an intermediate sheet, e.g. of paper and the printing sheet stuck lightly together by adhesion. The intermediate sheet is removed before the step of typewriting, printing, &c., on the outer surface of the printing sheet. A suitable machine for printing with the master sheet is described in Specification 757,020.
Patent GB-1372770-A (GB)
Title: Exhaust gas recirculating system for an internal combustion engine
IPC: F02M35/10
Filed: 1972-05-10
Abstract: 1372770 Treating I.C. engine charge FORD MOTOR CO Ltd 10 May 1972 [1 July 1971] 21715/72 Heading F1B [Also in Division F2] Exhaust gases are recirculated to the inlet 22 of the carburetter air filter 14 through a duct 24, 26 connected to the exhaust manifold. Valve members 28 and 30 control exhaust gas flow into the inlet 22, the valve member 28 being moved to an open position by a projection 40 on a plate 42. The plate 42 is operated by a diaphragm 50 subject to the vacuum in a carburetter port 62 upstream of the minimum open throttle valve 16. The valve member 28 is in an open position when the valve 16 is between its minimum and fully open positions. The valve member 30 is . moved to a position preventing exhaust gas flow, Fig.3 (not shown), when the exhaust gas pressure acting on the valve portion 33 exceeds a predetermined value. The vacuum line 60 may contain a valve 59 which is only open above a predetermined vehicle speed, e.g. 28 mph. The inlet 22 may include a valve controlling the proportions of unheated air and air heated by heat exchange with the exhaust manifold as a function of temperature and intake manifold vacuum.
Patent GB-1452195-A (GB)
Title: Filter for selective speed xerographic printings in facsimile transceivers and the like
IPC: H04N1/207
Filed: 1974-05-16
Abstract: 1452195 Facsimile system XEROX CORP 16 May 1974 [17 May 1973] 21769/74 Heading H4F In a xerographic facsimile transceiver, a modulated light beam is scanned over a drum printing station 16 at one of several printing speeds, the beam intensity per unit area at the drum being kept within a predetermined range for all the speeds, by passing the beam through a respective one of a plurality of attenuating neutral filters 21. In the transmit mode, a mirror 26 is in its lower position as shown and intercepts the laser beam from laser 11 via mirrors 22, 23 and galvanometer type oscillating mirror 24, to direct it to a scanning slit 14. In the receive mode the mirror 26 is raised out of the way of the beam so that the modulated beam can pass to the xerographic drum 16 via mirror 28. A shock protected construction of a disc carrying the filters and driven by a stepped motor is given Figs. 3, 4, 5 (not shown).
Patent GB-300936-A (GB)
Title: Improvements in or relating to the manufacture of transparent or translucent rubber
IPC: C08K5/098
Filed: 1927-08-19
Abstract: 300,936. Macintosh & Co., Ltd., C., Brazier, S. A., and Hurlston, E. H. Aug. 19, 1927. Ccmpositions.-In the manufacture of transparent or translucent rubber, a zinc or cadmium salt of an organic fatty acid, such as stearic palmitic, oleic or linoleic acid, is included in the mix prior to vulcanization. In an example, the mix contains 95.5 per cent pale crepe rubber, 2 per cent sulphur, 2 per cent zinc stearate, and 0.5 per cent zinc diethyl dithiocarbamate.
Patent GB-502394-A (GB)
Title: Compressed metal powder cores and methods of manufacturing the same
IPC: H01F1/26
Filed: 1938-07-22
Abstract: 502,394. Magnetic dust cores. LORENZ AKT.-GES., C. July 22, 1938, No. 21843. Convention date, July 23, 1937. [Class 38 (ii)] A binding agent for compressed magnetizable powder cores comprises a fluid and hardenable alkaline condensed phenol-formaldehyde condensation product which is water soluble. The mixture, containing approximately 3 per cent of binder is kneaded for several hours, dried out, pulverized in a mill brought to a moisture content of about 50 per cent, moulded at a pressure of about 10 tons/cms.<2>, subjected to a heat treatment at 60-70‹ C. for several hours and at 160‹ C. for a short duration.
Patent GB-1502719-A (GB)
Title: Antistatic textile filament
IPC: D02G3/44
Filed: 1976-05-26
Abstract: 1502719 Antistatic composite filaments MONSANTO CO 26 May 1976 [27 May 1975] 21847/76 Heading B5B The filament comprises a first non-conductive thermoplastic fibre forming polymer adhered lengthwise to a second normally non-conductive thermoplastic fibre forming polymer rendered electrically conductive by having dispersed therein carbon black to provide an electrical resistance of less than 1 x 10<SP>10</SP> ohm per cm. at a direct current potential of 0À1 volt, the crosssectional area of the second component being 1-30% of the cross-sectional area of the filament and the first component partially encapsulating the second in an amount of at least 50% and forming a curvate interface therewith extending from one side to the other of the filament. Preferred polymers are polyamides, polyurethanes, acrylics and polyesters. The conductive component preferably contains 15- 50% carbon black. Blends of filaments comprise at least 90% normal static filaments and up to 10% bicomponent filaments.
Patent GB-858130-A (GB)
Title: Stabilized olefin polymer compositions and method of preparation thereof
IPC: C08K3/34
Filed: 1957-07-10
Abstract: Compositions comprising a non-rubbery olefine polymer and from 0,3 to 10% preferably 0,5 to 2% by weight based on the polymer of a finely-divided silicon monoxide pigment having an average composition represented by the formual (Si O2)x (Si)y where x and y are integer have stable dielectric properties e.g. power factor, under outdoor weathering.  Polymers and copolymers of ethylene including the linear crystalline form or propylene, 1-pentene, 1-hexene, 1-octene, and styrene, are described and the silicon monoxide may be prepared in fibrous form by reacting sand and carbon at high temperatures in a reducing atmosphere and condensing in partial or complete vacuum, an inert atmosphere, or a reducing atmosphere such as an inert gas containing vapours of an amine, hydrogen, or alkanes.  The silicon monoxides may be coated with silicones or treated with amines and dispersed in liquid resin or solution thereof, or milled in the solid.  Conventional additives may also be present and the composition shaped or granulated for further fabrication such as wire or cable insulation.
Patent GB-484902-A (GB)
Title: Improvements in or relating to soil improvers
IPC: C05F11/02
Filed: 1936-08-07
Abstract: Soil improvers are obtained by reacting materials containing a substantial amount of water-insoluble humin acids, which by the addition of monovalent bases have been brought into dissolved or sol or gel condition, with aluminium and/or iron ions in the absence of phosphate ions, or with aluminium and/or iron compounds in sol or gel condition, the pH value of the reacting mixture being maintained between 4 and 8 and the proportion of aluminium and/or iron in the final product calculated as Al2O3 and or Fe2O3 being about 1-5 per cent of the dry organic matter.  Sodium, potassium and ammonium are suitable monovalent bases.  Suitable humin acid-containing materials may be obtained by subjecting fossil or recent organic materials, e.g. sphagnum peat, straw, refuse from sugar factories, lignite and charcoal, while in moist condition to oxidation with a free oxygen containing gas such as air at elevated temperatures not above 130 DEG C. while maintaining the pH value between 5 and 9. Aluminium may be introduced as a solution of bauxite or clay in sulphuric acid, aluminium sulphate, aluminium chloride or aluminium hydroxide sol or gel.  During the formation of the soil improver, aluminium and/or iron salt solutions and the mono-valent base, preferably ammonia may be added alternately to the material containing humin acids.  The product can be partially saturated with calcium and/or magnesium ions by adding limited amounts of calcium and/or magnesium compounds, e.g. calcium hydroxide, before, during or after the reaction between the humin acid containing material and the aluminium and/or iron.  The oxidation of the fossil or recent organic materials may be effected before, during or after the addition of the aluminium and/or iron compounds.  The initial material may be digested at elevated temperature with water, preferably rendered and/or alkaline, before or after the oxidizing process.  The digestion should preferably be followed by washing with water.  When the reaction is completed the product can be precipitated by adjusting the pH to 4,5-5.  After filtration and drying the pH of the final product may be adjusted to 6-8, say 7, by the addition of ammonia with or without calcium hydroxide.  Specification 438,114 is referred to.
Patent GB-509654-A (GB)
Title: Improvements in the delivery of material from hoppers, bunkers, and the like for charging coal-dressing and like plants
IPC: B65G65/42
Filed: 1938-07-23
Abstract: 509,654. Delivering material from hoppers; feeding to conveyers. GES. FUR FORDERANLAGEN E. HECKEL. July 23, 1938, No. 21950. Convention date, July 23, 1937. [Class 78 (i)] To maintain a regular supply of material, for example coal to a dressing plant, in spite of irregular feeding from the source of supply, the material is delivered to a hopper a and from thence passes to the pivoted buckets g of a conveyer leading to a hopper m charging the dressing plant. When there is more than sufficient material to charge the buckets, the surplus is diverted by division pieces in the hopper to side buckets h, i which for convenience may be pivoted on the same shafts as the buckets g. These buckets h, i deliver to a storage hopper n from which supplies are taken to fill the buckets g when the amount available in the hopper a is insufficient. It is stated that the means for discharging the hopper and the storage bunker may be coupled and operated by a distant control member.
Patent GB-240431-A (GB)
Title: Improvements in liquid level indicators
IPC: G01F23/42
Filed: 1925-09-03
Abstract: 240,431. Krumm, P., and Seignol, E. Sept. 24, 1924, [Convention date]. Indicators actuated by floats. - A floatoperated liquid level indicator for use in fuel tanks comprises a tube 1, carried by a cap 3 screwed to the tank, and dipping into the liquid. The float 4 is attached by a ribbon 8 to a drum 5 mounted in a casing 7, and containing a spring tending to rotate it in a direction to lift the float. The ribbon is graduated and is observed through a window 9. The Specification as open to inspection under Sect.. 91 (3) (a) comprises also another form, Fig. 3 (Cancelled), in which the float 4 is adapted to slide over a rectangular rod 11 carrying an indicating drum 12. The float carries projections 14 moving in helical slots 15 in the tube 1, so that its angular position in determined by its level, and is indicated by the drum 12. This subjectmatter does not appear in the Specification as accepted.
Patent GB-262181-A (GB)
Title: Improved method of and apparatus for effecting the disposal of exhaust gases
IPC: F01N3/38
Filed: 1925-09-03
Abstract: 262,181. White, A. E., (Thompson, C. E.). Sept. 3, 1925. Waste gases and combustion products, treatment and disposal of.- Noxious gases resulting from combustion of fuel are eliminated by commingling such gases with an oxidizing agent, initiating combustion by an external source of heat and continuing and maintaining combustion by heat derived from the burning gases within the influence of a catalysing agent. As applied to the treatment of engine exhaust, the exhaust pipe 3 projects into a casing 4 having a tapered nozzle portion which in conjunction with a bell-mouthed portion 4<1>, forms an injector which may draw through the inlet 6 either air from a chamber 12, or combustible mixture from the engine manifold through a pipe 8 according as to which of the valves 10, 13 is open. The mixed gases pass through a pipe 5 to a secondary combustion chamber 11 which may be the muffler and which is surrounded by the air chamber 12 communicating with the atmosphere at 12<1>. The exhaust is discharged at 19. The primary combustion space 5 contains a catalytic member 14, and a spark plug 15 in a circuit comprising a battery 16, interrupter 17 and switch 18. Assuming exhaust gases to be flowing valve 10 is opened switch 18 closed and the mixture is ignited and burns in the secondary combustion chamber 11. This is allowed to continue for a time sufficient to heat the chamber 12 and the catalyzer, after which valve 19 is closed and valve 13 opened. If the heat of combustion is insufficient to render the catalyzer active, it may be heated by a separate circuit 21 - 23. Should the combustion fail, the dilution by air of the gases will render them less obnoxious. By embedding the apparatus in insulation 20 contained in a casing 1, the heat of combustion may be conserved and, in addition to heating the air chamber 12, may be utilized for other purposes e.g. heating a car. The amount of heat may be increased by continuing the supply of mixture through the pipe 8.
Patent GB-321163-A (GB)
Title: Method of fixing staybolts to boiler and the like walls
IPC: B23K11/00
Filed: 1928-07-30
Abstract: 321,163. Metallbank und Metallurgische Ges. Akt.-Ges., and Forster, H. von- July 30, 1928. Stays.-The end 2 of a stay bolt 1 is. formed with screw threads or like projections engaging loosely with corresponding projections in a hole in a boiler plate 3 and is secured by welding or soldering material 4 in the space between the projections. A part of the screw threaded end of a bolt may engage tightly with the screw threads in the hole. A head 6, Fig. 2, may be formed on the bolt to protect the welding material from the action of the furnace gases. The solder or welding material may be inserted in the form of a thin tube between the projections and melted by passing an electric current through a heater inserted in a cavity 8, Fig. 3, in the bolt. The solder may be run in through one or more grooves 12, Fig. 7, in the bolt or through holes in the boiler plate.
Patent GB-183723-A (GB)
Title: Improvements in and relating to calculating apparatus
IPC: G06G1/08
Filed: 1921-08-20
Abstract: 183,723. King, O. C. F. Aug. 20, 1921. Slide-rules.-A slide-rule for use in multiplication and division of money and percentages comprises a tubular member B movable axially and angularly within a member A and a cursor C with index marks C<4>, C<5> movable on the latter. The members B, A carry spiral logarithmic scales B<2>, A<2> representing money values from one farthing to one thousand pounds and numerals from one to one thousand respectively. The member B is provided with spring tongues which co-operate with an internal lip on the member A and prevent the separation of the parts. The cursor is provided with a similar lip which co-operates with spring tongues on the member B. Both members have bands of velvet which frictionally hold the parts against accidental displacement. The instrument when not in use can be stood on a base A<8> or suspended by a pendent fitting B<5> provided with an air vent.
Patent GB-1094394-A (GB)
Title: Electrostatic printing
IPC: B41C1/10
Filed: 1965-05-25
Abstract: 1,094,394. Spark erosion. G. RITZERFELD. May 25, 1965 [May 28, 1964], No. 22264/65. Heading B3V. [Also in Divisions B6 and G2] In a method of producing an electrostatic printing master by spark erosion, a scribing electrode (9) is moved over the surface of a metal coating (2), on a thermoplastic base (1) or on a plastic coated paper base (1), while connected to one terminal of a high voltage A.C. source (13). The other terminal of the source is connected to a fixed point on the layer.