baber/WOPTO huggingface dataset:
Patent GB-253800-A (GB)
Title: Improvements in egg boxes
IPC: B65D85/32
Filed: 1925-11-24
Abstract: 253,800. Widmer, E. Nov. 24, 1925. Partitioned and cellular boxes; fittings, internal.-Egg boxes are divided into a number of parallel compartments by vertical and horizontal partitions e, b of corrugated paper board. Each compartment is divided into a number of cells to receive the eggs by a sinuous strips c of corrugated paper board. The horizontal partitions b may be formed with holes h to receive the small ends of the eggs. The strips c, e, the sheets b, and the box lining f are all formed with ventilation holes g, those in the lining f being arranged opposite slots i in the wall of the box.
Patent GB-964381-A (GB)
Title: Lifting jacks for vehicles
IPC: B66F7/08
Filed: 1962-08-02
Abstract: 964,381. Garage lifts; jacks. FOCKEWULF G.m.b.H. Aug. 2, 1962 [April 27, 1962], No. 29665/62. Headings B8H and B8J. In a jack for raising and inclining a vehicle comprising a pair of arms 9 which are pivoted about a horizontal axis 8 to a base frame 1 and which are provided with axle-engaging hooks 13 and pivoted arms 11, the arms 9 are raised by extension of an hydraulic ram 2, 3 which is pivoted at 4 to the base frame 1, and the piston rod 3 of which is provided with rollers engaging cam members 6, 7 mounted on the base frame 1 and the arms 9 respectively. The pivotal range of the arms 9, 11 is limited by stops 12 so that during initial raising of the arms 9, the outer ends of the arms 11, provided with adjustable vehicle-engaging brackets 14, remain on the ground until the arms engage the stops 12 whereafter continued raising of the arms 9 raises the arms 11 to the position shown. Struts 15, pivoted to the arms 9 and engaging notches in the base frame prevent collapse of the arms 9 due to failure of the ram.
Patent GB-427425-A (GB)
Title: Textile fabrics, underclothes, gloves, corsages, dress-shields, hat-lining and the like
IPC: D06M11/83
Filed: 1933-10-26
Abstract: 427,425. Silvering &c. EPSTEIN, S., 10, Rudolfsplatz, Vienna. Oct. 26, 1933, No. 29699. [Class 93] Textile fabrics, or underclothes, dress shields, hat linings, gloves, insoles, or other garments made therefrom, are metallized to enable them to be used for medicine treatment by spraying a solution of a metal salt, for example ammoniacal silver nitrate solution, on to the fabric or article, previously treated with a reducing agent, for example by soaking in grape sugar or formaldehyde solution. The metal coating formed is stated not to obstruct the pores of the fabric. Specification 396,978, [Group VII], is referred to.
Patent GB-185047-A (GB)
Title: An improved spring wheel or pulley
IPC: B60B9/28
Filed: 1921-11-09
Abstract: 185,047. Roberts, H. Nov. 9, 1921. Spring wheels.-A spring wheel comprises telescopic spokes offset alternately on either side of the median line of the wheel, all but one of which are pivoted both to the rim and to the hub, the remaining spoke being fixed to the hub and pivoted to the rim to give a positive drive between them. Each spoke comprises a tube C<1> in which works a plunger C<7> fixed to the end of a tube C<2>, which passes through a gland C<3> closing the tube C<1>. Springs C<5>, or resilient material, are fitted on each side of the plunger C' in the tube C'. On the outer ends of the tubes are bearings C<4>, connected to the hub and the rim respectively by adjustable pins D, Fig. 8. For heavy vehicles, two or more spokes are braced together on single end bearings, and are offset alternately as before. Coned discs may be fastened to the rim so as to clear the movable hub. For light vehicles, a small spring wheel may be spoked to a larger rim, the former being covered by half-discs fixed to the hub. In another modification, a motorcycle engine may be fixed within a small wheel, constituting the hub of a spring wheel of the construction described.
Patent GB-421683-A (GB)
Title: Improvements in or relating to radiators for evaporative engine cooling systems
IPC: F01P3/22
Filed: 1933-10-27
Abstract: 421,683. Cooling cylinders. FAIREY AVIATION CO., Ltd., Cranford Lane, Hayes, Middlesex, and LYON, G., Ranmoor, Fulmer Road, Gerrards Cross, Buckinghamshire. Oct. 27, 1933, No. 29910. [Class 7 (ii)] [See also Group XIII] The outlet from the cylinder jacket is provided with a separator 14 and steam flows therefrom through pipe 17 to a vapour condensing radiator and water flows through the pipe 15 to a liquid cooling radiator. Pump 19 returns condensate from the vapour radiator to the separator 14 and pump 20 returns liquid from the liquid radiator to the cooling jackets. Specification 252,082, [Class 29], is referred to.
Patent GB-1033298-A (GB)
Title: Catalytic diene synthesis process
Filed: 1963-07-29
Abstract: Diene synthesis (Diels Alder) reactions between a conjugated diene and an unsaturated dienophile are effected by activating the dienophile by the formation of a compound or complex with a metal or salt or complex thereof in a polar solvent.  The activator is preferably a salt or complex of a metal of Group Ib, II, IVb or VIII dissolved or suspended in water.  Reaction is effected at atmospheric or slightly increased pressure at room temperature to the boiling point of the solvent.  In an example, acetylene is reacted with cyclopentadiene in an aqueous cuprous chloride catalyst (used in the preparation of acrylonitrile) to form bicyclo-[2,2,1]-hepta-2,5-diene.
Patent GB-950712-A (GB)
Title: Improvements in or relating to gas traps
Inventor: FORSYTH GEORGE HOWARD
IPC: B04C5/15
Filed: 1962-08-07
Abstract: 950,712. Cyclone separators. VICKERS ARMSTRONGS (ENGINEERS) Ltd. Aug. 7, 1962, No. 30196/62. Heading B2P. [Also in Division B8] The gas inlets and outlets 5, 6, Fig. 1, of cyclone separators 1-4 are connected in series with a heating gas supply line 8 and heat transfer devices 50 so that granular &c. material to be heated may be injected successively to the devices 50 on the inlet side 5 of each separator and collected at each stage for introduction to the next stage. Gas trap devices 29 (see Divison B8) prevent back flow of gas into the material outlet 7 of each separator 1. 2. The heat transfer devices are described in Specification 950,713 [Division F4].
Patent GB-619237-A (GB)
Title: Improvements relating to angular gear drives
IPC: F16H57/033
Filed: 1946-10-10
Abstract: 619,237. Toothed gearing. SWIFT, Ltd., B. & P., and BIRCHER F. A. Oct. 10, 1946, No. 30233. [Class 80 (i)] In an angular gear drive, e.g. a worm gear drive, in which the intermeshing gears on shafts 7, 10 are contained in a casing 1 carried by two end plates 3, 4, which carry bearings for the shaft 7, the casing 1 is angularly adjustable in the end plates by screws 2. The casing 1 is formed with an extension 9 carrying bearings 11, 12 for the shaft 10. The end plates. 3, 4 have feet 6, and end plate 3 has feet 14 at right-angles to the others. Two oil level indicators may be provided in the casing 1 in planes at right-angles to each other.
Patent GB-1268294-A (GB)
Title: Lactone compounds and process for preparation thereof
IPC: B41M5/145
Filed: 1970-06-22
Abstract: 1,268,294. Pressure-sensitive copying paper. FUJI PHOTO FILM CO. Ltd. 22 June, 1970 [27 June, 1969], No. 30233/70. Heading D2B. [Also in Division C4]  Compounds of the general formula: where R 1  and R 2  are C 1 -C 5  alkyl or benzyl are used as colour-formers for pressure sensitive, heat sensitive or photosensitive copying paper.
Patent GB-896202-A (GB)
Title: Improvements in or relating to runway lights
Inventor: ADAMS JOHN COUCH
IPC: B64F1/20
Filed: 1959-09-04
Abstract: 896,202. Runway lamps. GENERAL ELECTRIC CO. Ltd. Aug. 29, 1960 [Sept. 4, 1959], No. 30325/59. Class 75(4) A runway contact light intended to be embedded in an aircraft runway is provided with an apertured cover, a metal cap supported over and extending beyond the edges of the aperture to form with the cover one or more mouths facing in a direction in which the light is to be emitted, each mouth being filled by a block of transparent material and the cap being supported at the mouth by the block and elsewhere at its edges by the cover. The cap may be in the form of a flat plate, the mouth being formed by shaping the material of the cover. The lower end of the aperture may be closed by a flat plate of transparent material which may be coloured, the light source and reflector being mounted below the cover. The block may be shaped to act as a reflector or may be parallel sided and an adjustable pivoted mirror provided above or within the aperture. The inner surface of the block, which may be of toughened glass, may be reeded or fluted. In the form shown, the light source is mounted in a socket 17, Fig. 5, in a chamber 16 at the focus of a parabolic reflector 18. The chamber 16 is secured to the under surface of a cover 15 having an aperture 23 within which is mounted a pivoted reflector 28. A window 30 which may be of coloured glass closes the lower end of the aperture. The top of the aperture is closed by a plate 24 supported at one side in a rebate on the cover and at the other side by a rib 22 on the cover and by glass blocks 26 located between the plate 24 and the cover 15 on opposite sides of the rib. The rib 22 allows a snow plough to travel over the cover without fouling the outer face of the blocks 26. In a modification, the cap 4, Fig. 3, is shaped to form a mouth 5 above an aperture 2 in the cover 1, a glass block 6 being located in the mouth and a reflector 8 being mounted below the cap 4 and above the aperture. More than one aperture with a separate cap and block may be provided in the cover.
Patent GB-1339356-A (GB)
Title: Polyurea sealing gaskets
IPC: C08G18/10
Filed: 1971-06-29
Abstract: 1339356 Polyurea foam sealing gaskets W R GRACE & CO 29 June 1971 [30 June 1970] 30445/71 Heading C3R [Also in Division C2] Sealing gaskets of resilient polyurea foam are made by heating an anhydrous curable and foamable composition comprising (a) a polyurethane forming prepolymer containing terminal isocyanate groups and. (b) a polyamine carbamate which is the reaction product of a polyamine with carbon dioxide, to decompose the polyamine carbamate and cure the composition. In a typical example a prepolymer was formed from a polypropylene oxide adduct of hexanetriol, a poly(oxypropylene) glycol, diethylene glycol and a toluene diisocyanate mixture and mixed with a polyamine carbamate derived from ethylene diamine and carbon dioxide. The mixture is cured and foamed by heating to 120‹ C.
Patent GB-428066-A (GB)
Title: Improvements in or relating to the supply or control of power in electric traction systems
IPC: B60L9/12
Filed: 1933-11-02
Abstract: 428,066. Control of D.C. motors. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and GARRARD, C. C., c/o General Electric Co., Witton, Birmingham. Nov. 2, 1933, No. 30485. [Class 38 (iii)] Varying E.M.F.-In an electric traction system, power is supplied to motors 11, 12 from a high-tension source 1 through a stepdown transformer 3 and arc-converters 6, 7 of the kind in which the flow of working current is controlled by auxiliary initiating arcs which periodically reduce the density of the fluid between the electrodes, means being provided for varying the timing of ignition of the arcs in said converters. Suitable electrode arrangements for the converters are described in Specifications 406,999, and 409,974, [Group XL], while suitable ignition arrangements are described in Specification 412,935, [Group XL]. Tappings on the secondary of the transformer 3 may be varied in such a way in relation to the ignition control that continuous and smooth voltage variations are obtained. The voltage changes may be under the control of a current limit relay. The supply may be direct-current which is first converted to alternating-current, and the motors may be arranged for series parallel control with voltage control for each stage. The motors have shunt-field windings, and regenerative braking is effected by controlling the fields and the transformer tappings.
Patent GB-648105-A (GB)
Title: Improvements in or relating to corner jacks for vehicles
IPC: B60S9/04
Filed: 1948-11-24
Abstract: 648,105. Vehicle jacks. BODEN-DAVIS, Ltd., BODEN, C., and DAVIS, J. Nov. 24, 1948, No. 30490. [Class 79 (iii)] A screw-operated corner jack of the type used on caravans has its arm mounted on two co-axial pivots spaced apart by a disance not less than a quarter of the length of the arm, whereby the arm can take lateral stresses without the usual separate side stay or stays. As shown, the base of the jack is T-shaped comprising a channel member 1 and angle member 2 welded together. The channel member houses the usual screw 4 operated by a wheel brace applied to the nut 5. The arm 10 is an open triangular lattice girder pivoted at spaced pivots 8 on the angle member 2 and carrying a pivoted foot 15 at its other end. A pair of links 12 connect a nut on the screw 4 to the arm 10, the links being pivoted on a cross member 11 welded to the sides of the arm 10, the cross member 11 comprising a rod stiffened by welding a web along one side thereof. The links 12 may be triangulated instead of parallel, with their ends pivoted at the ends of the cross bar 11 to avoid binding stresses in the latter. The T-shaped frame may be replaced by a triangular sheet metal pressing with flanged edges and stiffening swages therein to take the place of the channel. The arm 10 may be replaced by one of tubular section, or a triangular metal pressing.
Patent GB-958947-A (GB)
Title: Improvements in or relating to electric power supply circuits
Inventor: CLARKE JOHN PHILIP
IPC: H02M7/525
Filed: 1961-08-24
Abstract: 958,947. Protective arrangements; electric currents, converting &c. GENERAL ELECTRIC CO. Ltd. Aug. 24, 1962 [Aug. 24, 1961], No. 30562/61. Headings H2F and H2K. A power supply circuit including a semiconductor controlled inverter is provided with a thermal relay THB arranged to be energized when a switch 5 in series with the inverter is closed, a relay C to interrupt the operating circuit of the thermal relay (at C2) when A.C. is produced at the output side of the inverter, and means 15 to open the switch 5 when the thermal relay is operated if A.C. is not produced before the end of the timing period of the thermal relay. When the switch 5 is closed, a relay D closes contacts D1 to complete the circuit for a transistor oscillator, Fig. 3, controlling the inverter, a thermal relay THA closes contacts THAI to energize a relay E, and a relay A closes contacts A1. The relay E closes contacts E2 to complete the circuit for a contactor B and opens contacts E1 to deenergize the relays THA and A. The contactor B closes its contacts 9, 10 to complete the supply circuit to the inverter. As soon as the inverter supplies A.C., the relay C closes contacts C1 to maintain the contactor B energized and opens contacts C2 to open the circuits of the relays A, THA and THB. If relay C does not operate before relay A releases, contactor B opens. Subsequently, the thermal relay THA recloses its contacts THAI to re-energize the relay E so that the sequence of operation is repeated. If, after the contactor B has been closed three times, the relay C has not operated, the thermal relay THB closes its contacts THB1 to energize an electromagnet 15 to trip open the switch 5. A further thermal relay THC providing a longer time delay is controlled by the contacts 16 of a relay connected across the inverter output circuit. A rectifier 6 prevents operation should the circuit be connected with the wrong polarity. The inverter, Fig. 2, comprises two pairs of silicon controlled rectifiers 15A. . . 15D, the rectifiers of each pair being connected in series and* the pairs being connected between a negative input terminal 16 and the ends of a centre-tapped transformer primary winding 21. Each rectifier is shunted by a resistor 27 and a resistor 28 and a capacitor 29 in series so that transients in the D.C. supply are equally divided between the rectifiers of each pair. Rectifier elements 33, 34 improve the regulation characteristics of the inverter. The gating signals for the rectifiers 15A ... 15D are derived from a voltage regulator 5 and a transistor oscillator 4, Fig. 3, comprising transistors 46, 47 and a transformer 48 interconnected in the manner described in Specification 857,775, The transformer 48 has an additional primary winding 49 to which a synchronizing A.C. may be supplied by way of a transformer 50. Zener diodes 54, 55 limit the voltages of the secondary windings 51 . . . 53 before application to the rectifier gates. Specification 958,948 also is referred to.
Patent GB-1331375-A (GB)
Title: Fractionation of silica aerosols
IPC: C09C1/30
Filed: 1971-06-30
Abstract: 1331375 Pigmentary silicon dioxide CITIES SERVICE CO 30 June 1971 [1 July 1970] 30567/71 Heading C1A Pigmentary SiO 2  produced by the hydrolysis of SiF 4  in hot flame gases, is recovered from the resultant aerosol by (a) flocculating the silica particles within the aerosol and then (b) filtering the aerosol containing the flocculated silica by passing it to a filter medium at a temperature above its dew point. The hydrolysed SiF 4  produced in 1 is panned by line 6 to a mechanical agglomerator 5 and the resulting aerosol containing the flocculated silica is then passed by line 8 directly, without separation of the silica, into a bag filter 7 at 300-600‹ F. The mechanical agglomerator may be replaced by an electrostatic precipitator, a centrifuge or a tubular agglomerator.
Patent GB-190608-A (GB)
Title: Improved construction of mop or brush for washing crockery and the like
IPC: A47L17/00
Filed: 1921-11-17
Abstract: 190,608. Counsell, H. S., Fry, G. I., and Phipps, W. H. Nov. 17, 1921. Indiarubber brushes.-A device for washing jugs and similar domestic articles comprises a strip of rubber having transverse slits along one longitudinal edge, the strip being wound helically around and secured at each end to a rod c.
Patent GB-487655-A (GB)
Title: Brush for cleaning shoes
IPC: A47L23/04
Filed: 1937-11-09
Abstract: 487,655. Brushes. SIEMSS, J. Nov. 9, 1937, No. 30701. Convention date, Nov. 9, 1936. [Class 19] A brush-like device especially intended for cleaning shoes of deerskin, comprises a plurality of rubber strips 1 united to form a pile and fitted in a casing 2 so that the strips partly project therefrom, the projecting edges being serrated and enclosed by a cover 3 when the brush is not required for use.
Patent GB-971572-A (GB)
Title: Improvements in or relating to apparatus for heating foodstuffs packed in metal containers,packings or the like
IPC: H05B6/12
Filed: 1962-08-10
Abstract: 971,572. Thawing frozen food. M. BAERMANN. Aug. 10, 1962 [Aug. 12, 1961], No. 30794/62. Heading A2D. [Also in Division H5] Solid or liquid foodstuffs, e.g. fish or potatoes, in metal containers are thawed by insertion, directly, or in drawers 12, into cavities 11 between discs 5, 9 which bear permanent magnets and are rotated by a motor 4, to produce eddy current or hysteresis heating of the containers, which may be of tin plate or thin aluminium foil, and which may be raised from -20C. to 80C. in three to eight minutes.
Patent GB-887682-A (GB)
Title: Improvements in or relating to medicinal coating compositions
IPC: A61K9/28
Filed: 1959-09-09
Abstract: A coating composition for pills and tablets comprises particles of purified arsenic-free shellac suspended in an aqueous alcoholic solution of methyl cellulose, hydroxyethyl cellulose or sodium carboxymethylcellulose.  The shellac may be present in a concentration of 40-100% by weight of the cellulose derivative, and the latter may be present in a concentration of from 5-10% by weight of the composition when of low viscosity (less than 100 cps.), 3-5% when of medium viscosity and 2-3% when of high viscosity (over 1,500 cps.).  The alcohol may be ethanol, but other alcohols may be used, e.g. methanol or isopropanol.  A plasticizer, e.g. propylene glycol, glycerin, or polyethylene glycol of molecular weight 200-600, may be added in an amount of 1-3 g. per 100 g. of composition.  Other specified plasticizers include cotton seed oil and corn oil. Conventional colouring, sweetening, flavouring and opacifying agents may be added.ALSO:A coating composition for pills and tablets comprises particles of purified arsenic-free shellac suspended in an aqueous alcoholic solution of methyl cellulose, hydroxyethyl cellulose or sodium carboxymethylcellulose.  The shellac may be present in a concentration of 40-100% by weight of the cellulose derivative, and the latter may be present in a concentration of from 5-10% by weight of the composition when of low viscosity (less than 100 c.p.s.), 3-5% when of medium viscosity and 2-3% when of high viscosity (over 1500 c.p.s.).  The alcohol may be ethanol, but other alcohols may be used, e.g. methanol or isopropanol.  A plasticizer, e.g. propylene glycol, glycerine, or polyethylene glycol of molecular weight 200-600, may be added in an amount of 1-3 g. per 100 g. of composition.  Other specified plasticizers include cottonseed oil and corn oil.  Conventional colouring, sweetening, flavouring and opacifying agents may be added.
Patent GB-324370-A (GB)
Title: Improvements in or relating to safety razors
IPC: B26B21/50
Filed: 1928-10-24
Abstract: 324,370. Green, F. H. Oct. 24, 1928. Boxes combined with razor-sharpening devices.-A stropping apparatus for a safety razor blade 3 which is pivoted to the arms 2 of a U-sbaped frame and is held in shaving position by a latch 6 secured to the handle 1 has a box like portion 12 and wells 13, 14 at the ends. The top and bottom of the box part 12 have stropping members 10, 11 which leave at the sides channels 15 - - 18. When not in use the razor is housed in the box-like portion 12 and the whole apparatus is inserted into an outer shell.
Patent GB-140996-A (GB)
Title: Improvements in ball bearings
IPC: F16C23/08
Filed: 1919-12-09
Abstract: 140,996. Bokelund, H. Dec. 9, 1919. Ball bearings.-In a ball bearing for radial or axial loads, having an outer ball race b seated spherically in a divided external ring a, the parts of the ring a are connected by projections f and recesses e extending in the axial direction or oblique thereto and formed with spherical engaging-surfaces. The ball race b may also be in two parts similarly jointed.
Patent GB-159987-A (GB)
Title: Process for devulcanizing vulcanized rubber
IPC: C08J11/10
Filed: 1919-12-09
Abstract: 159,987. Willard, C. F. Dec. 9, 1919. Devulcanizing rubber.-India-rubber is devulcanized bv means of an emulsoid colloid solution in water of tar, pitch, resin, gum, or balsam, preferably wood tar. The ground rubber is boiled up with this solution, a sulphur solvent such as turpentine, and a detergent alkaline solution. The detergent solution may be employed along with the other solutions, or in a subsequent operation. Any known sulphur solvent may be used, or alcohol may be employed instead. The boiled rubbed is washed and dried, after which it can be subjected to any ordinary treatment. Fibre may be destroyed or separated in any known way.