baber/WOPTO huggingface dataset:
Patent GB-406346-A (GB)
Title: Improvements in or relating to the case hardening of iron, steel and alloy steels
IPC: C23C8/46
Filed: 1932-08-24
Abstract: Iron, steel and alloy steels are case-hardened by treating them in a fused salt bath containing 30-60 per cent by weight of barium chloride and 10-20 of sodium cyanide, the balance consisting essentially of alkali metal salts such as chlorides or carbonates which are added for the purpose of lowering the melting point and increasing the fluidity of the mixture.  The treatment is carried out at a temperature below 900 DEG  C.  Small amounts not exceeding 5 per cent by weight of strontium or magnesium salts may also be added to the bath.  In an example the bath consists of a mixture of 55 parts of barium chloride, 25 parts potassium chloride, 20 parts of sodium chloride and 20 parts of sodium cyanide.  Specifications 349,547, and 359,483 (as open to inspection under Sect. 91) are referred to.
Patent GB-1511088-A (GB)
Title: Alignment device for a stacking apparatus
IPC: B65H35/04
Filed: 1976-06-09
Abstract: 1511088 Sheet-ordering apparatus DR OTTO C STRECKER KG and BRUDERHAUS MASCHINEN GmbH 9 June 1976 [9 June 1975] 23826/76 Heading B8R Jogging mechanism for forming an aligned stack 2, Figs. 1 and 3, of sheets 3 comprises a plate 6 engaging one side of the stack and forming part of an assembly which is vibrated along an elliptical path so as to align the stacks laterally and also forwardly against a front support. The assembly comprises an electric motor 8, the plate 6, a counterweight plate 7, and two counter weights 11, 12 on the motor shaft. The assembly is supported by means of resilient rubber blocks on supports 15, and moves along the elliptical path when the motor rotates. A similar mechanism or a stationary metal plate is provided on the other side of the stack.
Patent GB-626440-A (GB)
Title: Process and apparatus for the recovery of gold from its ores and other natural deposits
IPC: C22B11/00
Filed: 1947-08-28
Abstract: A process of recovery of gold from a solution obtained by leaching a natural gold deposit and particularly a clayey gold ore, comprises subjecting such solution to the action of activated charcoal in granular or lump form.  The pulp-containing solution is preferably in a dispersed condition.  Apparatus for carrying out the process comprises one or more thickeners for gold-bearing pulp and one or more pervious cages for containing granular or lump charcoal and mounted in the thickeners so as to be traversable through the pulp therein and/or to have the pulp circulated through the same.
Patent GB-1413849-A (GB)
Title: Seed drill
IPC: A01C7/04
Filed: 1972-05-22
Abstract: 1413849 Seed drill STANHAY (ASHFORD) LTD 11 May 1973 [22 May 1972] 23879/72 Headings A1D and A1P A seed drill comprises a hopper 10, gravity feed means to a chamber 17 whose floor consists of a portion of the lower run 40 of an endless belt 19 having regularly spaced holes or rows of holes (not shown), a seed repelling roller 21 in the chamber 17, a plate 29 masking all but one hole or row of holes in the belt 19, drive means 16 between a ground contacting wheel 14 and a belt drive roller 24 to drive the lower part of the belt in a reverse direction to that of towing, a coulter 11 and a furrow closing member 26. Means 31-37 may be provided for raising and lowering the wheels thereby adjusting the depth of the coulter; and further means (not shown) for varying the gear ratio in the drive 16, allowing a variety of seed spacings. Variable spring tension means 27-30 provide for applying downward pressure on the unit against the reaction mass of the towing vehicle.
Patent GB-239377-A (GB)
Abstract: 239,377. Jolley, J., and Wood, J. E. Sept. 29, 1924. Machinery, utilizing inertia to obtain movements in.-In advertising or other apparatus in which vibrations are utilized to obtain rotary motion, a lever A, weighted at C, pivoted at F and driving a drum or cylinder I through a pawl B and ratchet wheel D, is restored to a normal horizontal position after each displacement by a spring J attached thereto at the pawl-carrying end.
Patent GB-1506290-A (GB)
Title: Control valve for a pneumatic braking system for trailer vehicles
IPC: B60T17/22
Filed: 1975-06-03
Abstract: 1506290 Tractor-trailer braking systems FIAT SpA 3 June 1975 [14 June 1974 28 Feb 1975] 23955/75 Heading F2F A tractor-trailer braking system includes a relay valve 100 having a control port 102 to which air is supplied from a reservoir 14 via a distributer 16. Air from reservoir 14 also passes through ports 104, 106 to trailer brake valve 20 maintaining air pressure in the trailer reservoir 18 and the relay valve 100 closes the connection between the ports 104, 106 in the event of failure in the tractor circuit, e.g. at point A. Pressure on pedal 15 causes movement of pistons 116, 122 towards piston 180 to close communication between chambers 130, 132 when a sealing ring 190 engages a valve seat 143 and to then displace piston 180 to open communication between chambers 168 and 132 and port 108 so that air from reservoir 14 causes conventional operation of valve 20 to apply the trailer brakes. If, however, there is a failure, for example at point A of conduit 38, there is no counter-pressure in chamber 132 and sudden axial displacement of piston 180 brings an annular seal 186 into abutment with seat 172 to isolate reservoir 14 both from the point of failure and from relay valve 100, air in the automatic circuit being discharged to atmosphere through conduit 36, chamber 168, chamber 132 and the point of failure and the consequent pressure drop causing valve 20 to initiate braking of the trailer. A visual pressure loss indicator 50 warns the vehicle driver.
Patent GB-1165454-A (GB)
Title: Reconstituted Tobacco
IPC: A24B15/12
Filed: 1967-05-23
Abstract: 1,165,454. Reconstituting tobacco. PHILIP MORRIS Inc. 23 May, 1967 [16 June, 1966], No. 23960/67. Heading A2C. Reconstituted tobacco sheet is made by reacting tobacco with an aqueous solution of a water-soluble orthophosphate at a temperature up to 300F. ,  using 1 to 30 parts by weight of the orthophosphate per 100 parts by weight of the tobacco; adding 1 to 50 parts by weight, per 100 parts by weight of the tobacco, of an alkaline earth metal phosphate; and casting the resultant material into a sheet. In the examples diammonium monohydrogen phosphate and calcium phosphate are used. Many other suitable alkaline earth metal phosphates are specified and include both synthetic and naturally occurring phosphates.
Patent GB-785387-A (GB)
Title: Therapeutic fat products and the manufacture thereof
IPC: A61K35/02
Filed: 1955-08-19
Abstract: A therapeutic fat product suitable for oral or intravenous use comprises a metabolizable, non-toxic, fixed oil with or without a sugar emulsified in an aqueous vehicle with a minor proportion of an ethylene oxide-polypropylene glycol condensation product.  Oils specified are naturally occurring animal and vegetable oils as well as synthetic glyceride oils such as olive, peanut, coconut, sesame, cotton seed and corn oils.  Suitable sugars are monosaccharides such as glucose and fructose and disaccharides such as sucrose and maltose.  The emulsifier is a compound of formula HO(C2H4O)a(C3H6O)b (C2H4O)cH where a, b and c are positive integers.  Preferably the hydrophobic polypropylene oxide portion has a molecular weight of about 1500 to about 1800 (i.e. b equals between about 25 and about 32) and the molecule contains between about 80 and about 90 per cent of ethylene oxide (a+c equals between about 136 and about 368). Soybean phosphatides (lecithin) may also be added to improve the suspension and stability characteristics.  Additional ingredients include edible antioxidants such as tert.-butyl-4-hydroxy anisole, propylgallate and citric acid, and preservatives.  In an example an emulsion for oral use is prepared by dissolving dextrose, lecithin, sodium benzoate, disodium ethylene diamine tetra-acetate and the ethylene oxide-polypropylene glycol condensate in deionized water heated to 95 DEG  C.  Tertiary butyl-4-hydroxy anisole is dissolved in a mixture of peanut and coconut oils and the two solutions mixed and homogenized.  U.S.A. Specification 2,646,354 is referred to.
Patent GB-260400-A (GB)
Title: An improved trough and splash guard for rotary polishing or abrading devices
IPC: B24B55/06
Filed: 1925-09-26
Abstract: 260,400. Wilson, S. H. Sept. 26, 1925. Splash guards.-A combined trough and splash guard for a rotary abrading or polishing wheel, for example, for treating dentures, comprises a sheet metal trough 1 with a base 2 and a curved portion 3. On the portion 3 is secured a curved cross shield 5, and above that shield is a fixed spindle 6 of non-circular section turnably and slidably carrying a canopy 7 having a drum portion 8. The canopy is retained frictionally in position by two discs 9, slidable but not rotatable on the spindle and pressed by a spring 10 into contact with the inner faces of the, ends of the drum 8. In a modification, the spindle carries a spool one of the end flanges of which has therein a series of holes, with any one of which a hole in the drum end may register, a pin then being passed into the holes. In a further modification, the drum carries internally, and parallel to the spindle, a spring-pressed rod which engages with any of a series of slots in a toothed segment carried by the spindle 6.
Patent GB-1006804-A (GB)
Title: Improvements in or relating to lasers
IPC: H01L31/0232
Filed: 1963-06-17
Abstract: 1,006,804. Lasers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. June 17, 1963 [June 20, 1962], No. 24012/63. Heading H3B. In a solid laser the active medium is in the form of an elongated body the ends of which take the form of right angle prisms such that stimulated radiations induced in the body are totally internally reflected at the ends of the body. As shown in the Figure the laser active material 1 of ruby or a crystal of uranium or samarium activated calcium fluoride has its ends cut and polished in the form of rightangled prisms 2, 3. Located opposite a surface of the prism 2 is a right-angle prism 4 spaced a distance d from prism 2 and having its apex coupled to a magnetostriction device 5 comprising a rod 6 of magnetostrictive material surrounded by coil 7 connected to a control voltage source 8. Thus by varying the current passing through the coil 7 the distance d may be varied. When the body 1 is excited by radiation from xenon discharge tube 9 lasing radiation will be emitted, a portion of which traverses the horizontal axis of the body 1 and impinges on the lasing material-air interface at an angle greater than the critical angle so that this axial radiation is totally internally reflected. Similar reflections take place at prism 3 so that if the prism 4 is at a distance d greater than the wavelength of the stimulated radiation no radiation escapes from the body 1. However if the movable prism 4 is moved closer to the surface of the prism 2 than the wavelength of the radiation then since some of the radiation penetrates the optically less dense medium a distance of about one tenth of a wavelength, a fraction of the radiation striking the end surface of prism 2 will enter prism 4 and travel from there outside the system as the output beam 11. Surface 12 of prism 4 may be made reflecting in order to obtain an output beam in only one direction. By applying a varying voltage to the coil 7 the output beam may be amplitude modulated. If a continuous uncontrolled output beam is desired a second right-angle prism 14 is positioned as shown separated from the prism 3 by a layer 15 of material having a refractive index lower than that of body 1. The magnetostrictive device 5 may be replaced by a piezoelectric device.
Patent GB-1182626-A (GB)
Title: Thermographic Copying Process
IPC: B41M5/382
Filed: 1967-05-24
Abstract: 1,182,626. Printing processes. INTERNATIONAL BUSINESS MACHINES CORP. 24 May, 1967 [6 June, 1966], No. 24044/67. Heading B6C. [Also in Division G2] One or more copies on a receptor sheet may be obtained by heating an original coated or impregnated with an alkaline material so that it is evaporated in the image areas and transferred to the receptor sheet containing a dye which changes its colour when contacted with the alkaline material, further copies being obtained by heating the original in contact with fresh receptor sheets.
Patent GB-388433-A (GB)
Title: Improvements relating to internal-combustion engine and change-speed-gear units for motor-cycles, and to the lubrication of the same
IPC: F02F7/00
Filed: 1931-08-27
Abstract: 388,433. Lubricating internal-combustion engines. NEW IMPERIAL MOTORS, Ltd. and DOWNS, N. T., Spring Road, Hall Green, Birmingham. Aug. 27, 1931, No. 24082. [Classes 12 (ii) and 12 (iii).] In a motor-cycle engine, the cylinder-supporting unit comprises a crank chamber a, an oil chamber b substantially surrounding the chamber a and having a forward extension which, in addition to increasing the air-cooled surface, enables the unit to be secured directly to the cycle frame, and a rear chamber c isolated from the other chambers and housing the change-speed mechanism. The timing-gear side of the unit is formed with oil passages and with a chamber housing a gear-driven doubleacting pump d which acts to deliver oil collecting in a pocket a<2> in the chamber a back to chamber b through the passages a3, a4, a<6> and an external pipe and to deliver oil from the chamber b to the engine parts through the passages b<3>, b<4>, b<6>. Removable filters are located in the passages a<3>, b3, and oil is scraped from the periphery of the flywheels into the pocket a<2> by a rib a<1>. The chambers a, c have, on the transmission-gear and timing-gear sides respectively, circular apertures closed by removable covers.
Patent GB-456930-A (GB)
Title: Improvements in screening devices
IPC: B07B1/10
Filed: 1935-08-29
Abstract: 456,930. Sifting - apparatus. GAS LIGHT & COKE CO., HAY, S., and GIFFORD, F. T., Horseferry Road, Westminster. Aug. 29, 1935, No. 24125. [Class 117] Apparatus for screening coal, coke rock chippings, &c., comprises two or more chains 2, Fig. 1, driven by sprocket wheels 3, and trained over guide pulleys 4 and supporting between them transverse bars 7 each of which has a number of fingers 8 extending, preferably on both sides, parallel to the chains. The material to be screened is fed on to the upper run of the device from a hopper 6 and a shoot disposed thereunder discharges the fines while the oversize material passes off at the end, the leading end of the fingers 8 being upturned as shown at 9, Fig. 4, to throw the screened material clear of the preceding fingers. The chains travel on stationary guides 12 during the upper run and fixed spindles 13 carry rollers 14 spaced to lie in the spaces between the fingers 8 act on the cross-bars 7 to impart rocking movement thereto.
Patent GB-235765-A (GB)
Title: Improvements in or relating to shin guards and the like
IPC: A63B71/12
Filed: 1924-10-14
Abstract: 235,765. Coombes, J., (trading as Williams, Thomas, & Co.), and Dale, G. Oct. 14, 1924. Guards for games.-A shin guard or the like embodying a series of upwardly-extending spaced ribs 3 of cane, steel, or the like enclosed with a backing 4 of suitable padding material within a cover or casing 1, 2 is characterized by the provision of a soft or yielding pad 6 formed by extending the outer cover of the guard below the canes, filling the extension with soft material, and securing the lower edges by stitch. ing or otherwise. The cover is stitched between the lower ends of the canes and the pad 6 so as to form a hinge.
Patent GB-185757-A (GB)
IPC: C07C29/06
Filed: 1922-09-08
Abstract: Silver or a silver compound is employed as a catalyst for the absorption of ethylene or its homologues in sulphuric acid. Preferably a small proportion of a substance is added which is capable of forming a froth, scum or emulsion with sulphuric acid; for example, olive oil, castor oil, rape seed oil, turkey red oil, chloroform, carbon tetrachloride, tetrahydronaphthalene, or carbon disulphide.  The silver employed may be in a colloidal state or as a salt or complex compound.  The Specification as open to inspection under Sect. 91 (3) (a) mentions stearic acid as an emulsifying agent. This subject-matter does not appear in the Specification as accepted.
Patent GB-830533-A (GB)
Title: Improvements relating to the polymerization of alpha-olefins
IPC: C08F10/00
Filed: 1957-08-02
Abstract: A metal chromite or metal sulphide and a polymerization activator comprising metal alkyls, metal hydrides, metal borohydrides, metal alkyl hydrides, metal carbides, and alkali metals or alkaline earth metals which metals may be combined with an alkyl halide are used as catalysts for alpha-olefin polymerization.  In examples copper chromite, molybdenum sulphide and aluminium triisobutyl are used. Other compounds mentioned are alkyls of aluminium, zinc, beryllium, chromium, magnesium, lithium, lead, sodium and potassium, lithium hydride, lithium aluminium hydride, sodium hydride, sodium and potassium borohydrides, methylmagnesium bromide, ethylmagnesium chloride, phenylmagnesium bromide, clacium and barium carbides, chromites of zinc, cadmium, tin, manganese, cobalt and nickel, and sulphides of chromium, tungsten, nickel and vanadium.ALSO:Alpha-olefins are polymerized by simultaneously contacting an alpha-olefin alone or with up to 25% of a substituted alpha-olefin in an inert liquid organic reaction medium with a metal chromite or metal sulphide and a polymerization activator comprising metal alkyls, metal hydrides, metal borohydrides, metal alkyl hydrides, metal carbides and alkali metals or alkaline earth metals, which metals may be combined with an alkyl halide.  The metal chromites are those of copper, zinc, cadmium, tin, manganese, cobalt or nickel or mixed chromites thereof, while the metal sulphides are those of the metals of Group IVa, VIII and vanadium sulphide. Specified olefins are ethylene, propylene, their mixtures, butene-1, the pentenes, hexenes, heptenes, octenes, mixtures thereof and butadiene-1,3, while styrene or vinyl chloride may be present in up to 25% by weight of the olefin.  The process may be operated continuously.
Patent GB-1006435-A (GB)
Title: Static ventilation device
IPC: F24F7/02
Filed: 1962-06-27
Abstract: 1,006,435. Ventilators. REGIE NATIONAL DES USINES RENAULT. June 27, 1962 [June 28, 1961], No. 24705/62. Heading F4V. A ventilator for a building comprises an upwardly convergent vertical duct 2 on the roof ridge of the building, and an upwardly apexed central longitudinal member 3 disposed within the duct 2 so that the edges of an upper horizontal opening 7 of the duct are slightly above the apex of the central member 3 and overhang its lower edges which latter overhang the edges of an aperture 4 in the ridge portion of the roof 1 directly below the central member, the lower part of which central member carries pivoted flaps or dampers 8 and 9 movable manually or automatically to control the air flow through the ventilator. The aperture 4 is formed in extensions 5 of the main roof members below the duct 2, and drainage apertures at the edges of the extensions allow water entering the ventilator to escape on to the roof 1. Controllable shutters 12 in the lower parts of the building side walls allow fresh air to enter the building.
Patent GB-921061-A (GB)
Title: Fibrous structural materials
Inventor: BISHOP PETER HAROLD HOWARD
IPC: D04H13/00
Filed: 1960-07-15
Abstract: 921,061. Laminates. MINISTER OF AVIATION. June 30, 1961 [July 15, 1960], No. 24706/60. Class 140. [Also in Groups XIII and XXIX] A composite structure comprises an assembly of spirally wound rolls 12, Fig. 1, of felted fibrous material, preferably of glass fibres, closely packed together and mounted, e.g. on a panel 10 with the axes of the rolls parallel and substantially in the direction of the load to be applied. The rolls are preferably bonded together, and to the panel 10 and a superposed panel if used, by polyester resin adhesive, and the panel 10 preferably has Z-section rollpositioning ribs 11 of less height than the rolls. The rolls are both load-supporting and heat- and cold-insulating, tests described showing their properties between temperature ranges of -190‹ C.:0‹ C. and 0‹ C.:270:325 and 600‹ C. respectively. The panel 10 may be replaced by a flexible skin 15, Fig. 5, e.g. of glass fibre fabric and the flexible product so made may be used to line a fuel tank 16 the skin being rendered impervious by impregnation with synthetic resin and constituting the inner surface of the tank. The wall of the tank may have L-shaped partitions around which the flexible lining is folded. The rolls 23, Fig. 7, may include longitudinal inextensible fibres 25 which collapse when the roll layer is under load (e.g. of fuel 26 in a tank 22 of which the roll layer covered with a flexible and, if necessary, elastic impermeable skin 24 forms the lining), but limit the expansion of the layer when unloaded. In a further construction a load, e.g. an assembly of gas cylinders, is held by a strip to a composite support comprising upper and lower rigid panels spaced by a roll-assembly which is held under light compression by independent tension members connecting the panels. Exposed portions of the upper surface of the roll assembly are spray-coated with aluminium. The rolls may be lightly impregnated with polyester resin or may contain 40% by weight of silicone resin.
Patent GB-139432-A (GB)
Title: Improvements in means for lighting fires in grates, stoves, and the like
IPC: F24B15/00
Filed: 1919-10-10
Abstract: 139,432. Price, A. L. Oct. 10, 1919. No Patent granted (Sealing fee not paid). Laying and lighting fires.-In laying a fire in a domestic stove &c., the coal or the like its supported above the paper, wood, and the like by means of a grid or similar means fitted so as not to collapse when the paper &c. burns out. Fig. 1 shows a device consisting of a handle B, a foot D, and side bars E formed in one with a crossbar F fitted in a hole H in the bar A so as to hold the foot D in place. In a modification, the foot is supplemented or replaced by a hook K, Fig. 2, by means of which the device may be suspended from the top bar of a grate front. The aperture G in the part C is elongated so that by means of a pin L fitting into one of a series of holes M, the part A may be fixed at various heights above the grate bottom.
Patent GB-637400-A (GB)
Title: Nitroolefine derivatives of malonic esters and process for preparing same
IPC: C07C205/51
Filed: 1947-09-09
Abstract: Aliphatic nitro substituted malonic esters of the general formula <FORM:0637400/IV (b)/1> where R1 and R2 are alkyl radicals having not more than 8 carbon atoms, R3, R4 and R5 may be hydrogen or said alkyl radicals and R6 may be hydrogen, aryl or said alkyl are prepared by reacting an aliphatic nitroolefine of the formula <FORM:0637400/IV (b)/2> with the appropriate malonic ester in the presence of an alkaline material such as an alkali metal in the presence or absence of a solvent.  The product may be isolated by acidifying, e.g. with acetic acid to neutralize the sodium derivative.  In examples: (1) the sodium derivative of diethyl malonate is reacted with 3-nitro-3-hexene to give the diethyl ester of (2-nitro-1-ethylbutyl) malonic acid; (2) 2-nitro-1 butene is used as the nitroolefine in (1) to give (2-nitrobutyl) malonic ester; (3) 1-nitro-1-pentene is used as the nitroolefine to give 2-nitro-1-propylethyl malonic ester; (4) the sodium derivative of ethyl diethyl malonate is reacted with 2-nitro-1-butene to give (2-nitrobutyl) (ethyl) malonic ethyl ester; (5) 1-nitro-2-methylpropene is used as the nitroolefine in (1) to give nitrotertiarybutyl malonic ethyl ester and (6) the sodium derivative of phenylmalonic ethyl ester is reacted with 2-nitro-1-butene to give (2-nitrobutyl) (phenyl) malonic ethyl ester. Other specified products are 2-nitroethylmalonic ethyl ester, 2-nitro-1-methylethylmalonic butyl ester, 2-nitropropylmalonic propyl ester and 2-nitro-1-propylethylmalonic pentyl ester.