baber/WOPTO huggingface dataset:
Patent GB-380426-A (GB)
Title: Improvements in and relating to methods of insulating electric apparatus
IPC: H01B13/06
Filed: 1932-07-25
Abstract: 380,426. Insulation. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Hovey, A. G. ; 227, 3rd Street, Scotia, New York U.S.A.) July 25, 1932, No. 20964. Convention date, July 25, 1931. [Class 36.] Conductors are provided with inorganic insulation, are coated with a temporary protective material, are wound into coils and the protective coating replaced by a rigid permanent inorganic insulation. In an embodiment, a copper wire is given a coating of oxide followed by a thin coat of alkyd resin. A coil is then wound and the resin volatilized by heating for two hours at a temperature of 380-400‹ C. Final insulation is then applied and may consist of mixtures of water glass, asbestos, and flint ; plaster of Paris ; magnesium oxychloride and other hydraulic cements ; vitreous materials such as mixtures of lead borate and mica, cast molten glass or vitreous enamels. Rubber, particularly unvulcanized rubber, may be used in place of the alkyd resin, the rubber being removed by dissolving in hot aliphatic hydrocarbon solvent, e.g. transil oil, at 220‹ C. Metastyrene polymer may also be used as the protective coating, being removed by heating for two hours at 400‹ C. In place of the initial oxide coating, lead borate may be used. An aluminium conductor may be used and a copper conductor may be given a film of aluminium oxide.
Patent GB-1032741-A (GB)
Title: Hoist for lifting and tilting vehicles
Inventor: SPENCER FRED
IPC: B66F7/22
Filed: 1961-06-10
Abstract: 1,032,741. Garage lifts. SPENCER MOTOR SERVICES (TODMORDEN) Ltd. Sept. 10, 1962 [June 10, 1961], No. 21036/61. Heading B8H. A garage lift adapted to lift and to tilt a vehicle comprises vehicle supports 11 mounted on a pair of arms 7, each provided at one end with a housing 9, containing a nut engaging a screw shaft 10, and pivotally supported at the other end on an arm 3A. The arms 3A are rotatably mounted on a shaft 2 supported on a base 1 and the screw shafts 10 are articulated and geared to the shaft 2. The other ends of the arms 3A are similarly supported by screw shafts 6 articulated and geared to a shaft 3. The shafts 2, 3 are driven manually or by motors M. Cranked U-shaped brackets (not shown) may be provided on the supports 11 for clamping the vehicle wheels in position. Jacks may be provided on the supports 11 so that the vehicle may be supported with its road wheels free.
Patent GB-854444-A (GB)
Title: Converter for liquefied gases
IPC: B64D13/04
Filed: 1957-07-03
Abstract: 854,444. Revaporization of liquefied gases. SPENCER, P. L. (Aro Equipment Corporation). June 27, 1958 [July 3, 1957], No. 21039/57. Class 8(2). In a liquid oxygen converter having an economiser duct 11, 20 connecting the gas space of the liquid oxygen container 10 with the liquid delivery duct 18 at a point 19 upstream of the main evaporating coil (not shown) and wherein the duct 11, 20 has a pressure opening valve 21 operating at a pressure below that of an associated relief valve 23, the delivery duct has a non-return valve 22 upstream of the junction 19 thus preventing back flow of gas from the duct 20 to the liquid space of the container and the system includes a pressure build-up circuit comprising a vaporizer coil 16 and a pressure closing valve 15 housed in a common casing with the valve 21. Filling of the container 10 is effected through a valve 14 with a vent duct 13 being open to atmosphere.
Patent GB-321386-A (GB)
Title: Screw-thread cutting dies
IPC: B24B3/60
Filed: 1929-07-09
Abstract: 321,386. Herbert, Sir A., and Lloyd, A. H. July 9, 1929. Chasers.-In making chasers for screw-cutting die-heads, of the kind having guiding threads contacting with the work on both sides of the cutting edge, the grooved chaser is finished by a multi-start lapping hob having an effective diameter, the ratio of which to that of the screw to be cut, is equal to the number of starts. Thus if the effective diameter of the hob is twice that of the work there will be two starts on the hob so that the helical angle of the thread on the hob will be the same as that on the work, but the diameter of the hob will be greater than the work to prevent too close a contact between the latter and the guiding threads of the chaser. The centre of the hob 4 is arranged on a plane 9 perpendicular to the grooved face 8 of the chaser in order to produce a lapped zone 10 which will be perpendicular at the cutting edge 20 to a radius of the work 3. The chasers are arranged radially with their grooves in contact with the threads of the hob which is rotated or oscillated whilst coated with abrasive. One or more of the multi-threads on the hob may be removed, in which case the hob is fed along the chaser to operate equally on all the grooves. Specification 8806/04 is referred to.
Patent GB-825559-A (GB)
Title: Method of producing a durable and very high lustre on articles made of aluminium or aluminium alloys
IPC: C23F3/02
Filed: 1956-07-06
Abstract: A high and durable lustre is produced on articles of aluminium or aluminium alloys by pickling them in a suitable solution, wet polishing them with a dispersion of a polishing agent in a liquid, and providing them with a transparent protective film, e.g. by anodizing or dipping in a nitrocellulose lacquer.  Before pickling, the articles may be dry polished or passed between polished steel rolls, but this may be omitted if they have already a sufficiently smooth surface, e.g. in the case of foil, strip, sheet, wire, rolled or pressed sections and die-castings.  The dry-polishing composition may comprise aluminium oxide, stearic acid, paraffin wax and petroleum jelly, and be applied with a buffing wheel.  Pickling may be by immersion in a solution of caustic soda followed by neutralization with nitric acid; or by immersion in a mixture of nitric and hydrofluoric acids followed by washing with water.  The wet polishing composition may be a dispersion of hydrated aluminium oxide in a liquid medium, e.g. water, to which substances for increasing the viscosity, e.g. vegetable mucilages or water-soluble cellulose derivatives, and for improving its wetting power, e.g. alkyl sulphonates, may be added.  Non-aqueous media such as alcohol may be used.  The wet polish may be applied by a buffing wheel, and may be cooled during application.  The wheel may be of textile or of porous synthetic plastic as described in Specification 825,560.
Patent GB-499789-A (GB)
Title: Improvements in or relating to carburized alloy compositions
IPC: C22C29/08
Filed: 1937-07-29
Abstract: Powder of an alloy of tungsten carbide, vanadium carbide, vanadium, and a metal such as cobalt, nickel, iron, or manganese, with or without titanium carbide, may be mixed with diamond dust, formed into grinding wheels, drills, and the like, and sintered.ALSO:A hard alloy for tools, dies, ignition contacts, and other purposes consists of tungsten carbide containing up to 2,5 per cent of vanadium carbide, with or without titanium carbide, and a bonding medium consisting of an alloy of vanadium, with one or more lower melting point metals such as cobalt, nickel, iron, or manganese.  The alloy may be made by adding to a mixture of ammonium vanadate, titanium oxide, and tungsten sufficient carbon to reduce the compounds and to form the required carbides of titanium, vanadium, and tungsten, and heating in hydrogen at 1800 DEG  C.; the product is powdered, reheated at 1800-2000 DEG  C., mixed with vanadium powder or vanadium compounds and an oxide of a metal such as cobalt, and reduced in hydrogen at 350-400 DEG  C.  The resulting alloy is ground and ball-milled and the powder is pressed to the desired shapes and sintered.  The powder before pressing may be mixed with diamond dust and formed into grinding wheels, drills and the like.
Patent GB-622100-A (GB)
Title: Improvements in or relating to anti-friction articulations for the track links of metallic endless tracks for track - laying vehicles
IPC: B62D55/205
Filed: 1945-08-17
Abstract: 622,100. Endless tracks. SOC. DES BREVETS KEGRESSE, S. E. K. Aug. 17, 1945, No. 21063. Convention date, Aug. 23, 1943. [Class 79 (i)] In a vehicular endless track having interengaging eyes on adjacent links pivoted together by an axle with a resilient bush interposed between the axle and eyes, the axle consists of a single unmachined bolt or tube to which is bonded a resilient sleeve divided into a number of sections corresponding to the link eyes, the axle and sleeve being force fitted into the eyes. Each track link 2, Fig. 2, is provided .with guide ribs 3, recesses 4 for receiving the driving sprocket teeth, and ears 6 and 7 for receiving the pivot pins 10. The latter are provided with rings 11, 12 of rubber or the like separated by grooves 13. The rings are vulcanised to the pins 10 and the pins with rings are secured in the ears 6, 7 by a force fit. As shown in Fig. 3, the resilient sleeve may be divided into sections by peripheral grooves 13 which do not extend right through the sleeve. As shown in Fig. 4, metallic rings 16, 17 of slightly smaller diameter than the bore of the ears 6 or 7 may be provided at the centre of each rubber ring to take excessive loads. The pins are retained in position axially by washers 14 and pins 15. The track is assembled so that in its position of rest off the vehicle it is aproximately circular.
Patent GB-1450016-A (GB)
Title: Suture package
IPC: A61B17/06
Filed: 1975-05-19
Abstract: 1450016 Packaging sutures ETHICON Inc 19 May 1975 [24 July 1974] 21200/75 Heading B8C A suture package comprises a suture retainer 20, Fig. 2, formed from card, plastic sheet or foil and having two or more panels adapted to fold and enclose the suture and retain a needle 15 in a notch 27, the top panel 23 of the so folded retainer being fixed by adhesive or heat or pressure seal to the inside of a panel 41, Fig. 5, of an enclosing sealed-edge envelope of laminated plastic-aluminium foil, so that when the envelope is opened or stripped off by pulling a tab 30 of the top panel 23 or envelope tear strip, the panel 23 is also partly pulled away, along say a slit 31 to disclose the suture. The panel tab 30 is sealed into the edge of the envelope which is itself sealed by bonding, adhesion, heat or pressure and the slit 31 may be vertical instead of oblique. The retainer may be provided with co-operating locking tabs and slits, Figs. 1 and 4 (not shown), and the needle may be retained by a die cut tab (35), Fig. 6a (not shown). In Fig. 9 the retainer is bonded or adhered at A to the envelope and provided with a tear notch, and in Fig. 10 (not shown) the whole upper panel of the envelope strips off. The package may be sterilized by radiation, steam or ethylene oxide.
Patent GB-714657-A (GB)
Title: Improvements in record materials
IPC: B41M5/132
Filed: 1952-08-25
Abstract: 714,657. Paper &c. marked by pressure. NATIONAL CASH REGISTER CO. Aug. 25, 1952 [Aug. 31, 1951], No. 21260/52. Addition to 628,960. Class 96 Paper &c. giving a coloured mark where it is pressed by a stylus &c. due to rupture of a binding medium and consequential contacting of colour-reactants, as disclosed in the parent Specification, has different combinations of reactants selectively applied, so that different colours are produced by marking pressures at different areas of the surface. For example, a balance sheet may have different colours for the credit and debit columns. Preferably a clay-like coating is applied all over, and different organic colour-reactants as in the parent Specification or as in Specification 656,859 applied to selected areas. Specification 546,749 also is referred to.
Patent GB-723644-A (GB)
Title: Improvements relating to the manufacture of materials having coloured patterns thereon
Inventor: CANTOR ROBERT
IPC: D06N7/00
Filed: 1951-08-16
Abstract: 723,644. Patterned coated fabrics. DUNLOP RUBBER CO., Ltd. Aug. 16, 1951 [Aug. 29, 1950], No. 21297/50. Drawings to Specification. Class 140. [Also in Group XV] Materials having a thermoplastic resinous surface-layer forming a coloured pattern are produced by applying to selected areas of a supporting material, e.g. textile fabrics, thermoplastic resin sheets, or tiles moulded from fillers and thermoplastic resins, a paste comprising a thermoplastic resin and a plasticizer therefor in which the resin is insoluble at room temperatures, distributing on the paste a granular composition comprising pigment, a thermoplastic resin, and a plasticizer therefor, heating to gel the paste and soften the granules and pressing the hot material. The paste, which may be pigmented, may be polyvinyl chloride or a copolymer of vinyl chloride with vinyl acetate or vinylidene chloride in an ester plasticizer, e.g. tricresyl phosphate, or dibutyl phthalate, gelling at 120-140‹ C. The granular composition, softening at 170-180‹ C. may be made as described in Specification 723,643, [Group IV (a)], by heating a dispersion of the same polymer, as in the paste, in a plasticizer until absorption of the plasticizer occurs without coalescence, and breaking up the cooled composition. Patterns in more than one colour may be obtained by applying paste to the areas corresponding to one colour, distributing granular composition of the appropriate colour thereon, removing excess granules, gelling the paste by heat to anchor the granules, and then applying paste and different coloured granules to further selected areas. Mottled effects may be produced by using mixed coloured granules. The patterns may be applied to a temporary support and transferred to a backing material.
Patent GB-165812-A (GB)
Title: Improvements in or relating to the method of operating furnaces, kilns, ovens and the like
IPC: F27B13/04
Filed: 1918-12-19
Abstract: 165,812. Francart, H. Dec. 19, 1918. Multiple-chamber kilns.-In a continuous kiln the bricks, terra-cotta ware, &c. to be dried or burnt are built up to form communicating chambers in some of which combustion is effected, the arrangement being such that the heating-gases pass upwards through the combustion chambers, and then downwards through the non-combustion chambers. In one method of carrying out the invention the kiln is formed with ribs 4, Fig. 3, depending from the roof, and against these ribs the bricks &c. are set closely to form partitions 6 having openings 19 at their lower ends. Between these partitions other walls 7 are closely built leaving openings 21 at the upper part of the kiln, and in the chambers 8 and 9 so fcrmed, other bricks are loosely stacked. Combustion is effected in the chambers 8 only, and the heated gases flow in a sinuous course through the kiln to the flue. In another method shown in Fig. 3, transverse walls are built across the kiln with openings at their lower ends, and the combustion and non-combustion chambers 16, 17 respectively are formed by longitudinal walls 14 built to leave openings at both top and bottom.
Patent GB-687305-A (GB)
Title: Improvements in or relating to beet harvesting machines
IPC: A01D25/04
Filed: 1950-08-30
Abstract: 687,305. Beet-harvesting machines. AKTIEBOLAGET OVERUMS BRUK. Aug. 30, 1950 [Aug. 30, 1949], No. 21451/50. Class 6(iii) A beet-harvesting machine has an inclined frusto-conical spiked rotary gathering drum 5 with its axis in a transverse plane and directed upwardly to its apex, and, fast with the drum support, a catching a bar 8 and rails 9 spaced from the drum periphery for extracting and guiding the roots propelled by the drum spikes to the highest part of the drum for lateral ejection by a rail 10. As shown, the machine comprises a hexagonal frame 1 mounted on wheels 2. The conical drum with resilient radial spikes 7 is driven in a sleeve 6 by a worm gear in a casing 4. The drum, with casing 4, bar 8, and rails 9, 10, is carried by a T-shaped bar 3 pivoted to frame 1 for raising and lowering about axis 21 on the vehicle frame by hand gear 12. The machine is connected to a tractor, and the worm gear in casing 4 is driven by the tractor power take-off shaft 20. Steering along the lines of beets is effected by a lever 16 pivoted to the vehicle frame at 15 and connected to the tractor at 17.
Patent GB-1196598-A (GB)
Title: Preparation of a Ketosebacic Acid
Inventor: HOWELL FREDERICK HAROLD
IPC: C07C45/67
Filed: 1966-12-21
Abstract: 1,196,598. Preparation of 5-ketosebacic acid. GEIGY (U.K.) Ltd. 23 Nov., 1967 [21 Dec., 1966], No. 21515/68. Divided out of 1,196,594. Heading C2C. 5-Ketosebacic acid is prepared by treating cyclodec-5-enone, having the formula with ozone, and thermally oxidizing the ozonized material at an elevated temperature. The ozonization is preferably conducted in the presence of a solvent comprising an aliphatic alcohol or monocarboxylic acid having 1 to 4 carbon atoms.
Patent GB-404384-A (GB)
Title: New or improved apparatus for playing a game
IPC: A63F3/00
Filed: 1932-07-30
Abstract: 404,384. Board games. CHAD VALLEY CO., Ltd., Harborne, and WHITEHOUSE, F. R. B., Fairdays, Barlows Road, Edgbaston, both in Birmingham. July 30,1932, No. 21535. [Class 132 (ii).] Playing pieces are moved from bases 11 along a track 12 to home positions 24 according to results obtained from dice or other chance apparatus. Adjacent each base a slot 18 is cut in the track to expose a disc 14 pivoted at 15. Each disc is marked with divisions 18 all round its periphery and is provided with holes 17 to enable it to be moved. When a piece is moved on to a disc, it comes under the control of the player owning the corresponding base, who moves the disc according to the result of the dice throw. The piece may thus be moved opposite the continuation 21 of the track 12, or it may be carried into a cul-de-sac 20 and become a prisoner. In a modification, there are further openings 25 in the board, and a piece may not be moved out of a base until a representation of a drawbridge on a disc 14 is below the corresponding opening 25.
Patent GB-1046529-A (GB)
Title: Improvements in or relating to electric switch contact arrangements
Inventor: HYDE NORMAN ERIC
IPC: H01H50/56
Filed: 1964-05-25
Abstract: 1,046,529. Contact-members for switches. HELLERMANN DEUTSCH Ltd. April 30, 1965 [May 25, 1964], No. 21580/64. Heading H2B. A compact contact arrangement suitable, for example, for a miniature relay, comprises fixed contacts 2a and 2b respectively co-operating with the free ends 10 and 9 of two resilient strips of metal 4 and 5 disposed back to back and welded at 8 to a fixed pin 7. Preferably a single strip of metal is folded back upon itself, as shown. The strip 5 is longer than strip 4 and is bent as shown to provide a change-over contact arrangement. The end 9 of strip 4 prevents erosion of strip 5 where it would otherwise engage contact 2b, and the contiguous strips 4 and 5 serve to damp any tendency to contact bounce. Four such contact arrangements are shown mounted in a small space on a plate 1. .
Patent GB-280314-A (GB)
Title: Improvements in brake operating gear for motor vehicles
IPC: B60T11/06
Filed: 1926-09-02
Abstract: 280,314. North. O. D., Hugh, P. G., and Scammel Lorries, Ltd. Sept, 2, 1926. Controlling - apparatus,arrangements of hand, foot, and transmission gearin conjunction with. - In brakes for motor vehicles in which pairs of driving, vheels are supported by balance arms adapted to oscillate about the ends of an axle, the brakes are operated by members 13 arranged substantially parallel to the axle and close to the axis thereof so that movement of the balance arms will not affect the brake operation. The members 13 are operated through arms 9, 12 keyed to spindles journaled in brackets 6 on the differential casing 5 of the vehicle, the arms 9 being connected by rods 10 to the brake, operating lever. The brake cam levers 1 of the wheels on one end of the axle are connected to the members 13 by links 19 and arms 18, 14 carried at each end of pins 15 mounted in sleeves 16 secured to the balance arm by brackets 17. The links 10 are connected to the levers 9 by universal joints, the links 10 being forked in a vertical plane and the levers 9 in a horizontal plane, links 11 connecting the two forks. The rods 13 and levers 14 are also universally connected. In a modified form of the invention a bracket 23, Fig. 4, secured to the differential casing of the vehicle, carries sleeves 26 adapted to oscillate about pins 25 and carrying rotatable pins 27 to which are attached arms 30 connected to the brake gear by cables 31 arranged close to the axle casing. 'Pins 27 also carry arms 28 connected to the operating gear by cables 29. Specification 266,272, [Class 79 (ii), Motor vehicles, Driving &c.], is referred to.
Patent GB-1260243-A (GB)
Title: Miniaturized high-frequency transformer
IPC: H01F17/04
Filed: 1969-04-28
Abstract: 1,260,243. Transformers. MATSUSHITA ELECTRIC INDUSTRIAL CO., Ltd. 28 April, 1969 [21 May, 1968], No. 21649/69. Heading H1T. An H.F. transformer comprises a terminal carrier member 1 having a threaded axial hole 2 and coil 3; a core supporter 5 (of thermoplastic resin) which (e.g. by means of soft ridges 7) is screwed into the hole 2 of terminal carrier member 1, which also has a screw-driver slot 8 and an axial hole; a ferrite cap-type core 13 with an axial centre portion 12 is inserted in the axial hole and has a screw-driver slot in its closed end; and a shielding cover enclosing the assembly. The core supporter 5 is fixed to the cap core 13 by prongs 10 which are inserted in holes and deformed by heat. The transformer may be mounted on a printed circuit board and its inductance adjusted from either the top or bottom. Terminals 17 and recesses 18 for leads are formed on the terminal member 1; and earth tags are formed on the cover.
Patent GB-200388-A (GB)
Title: Improvements in poultry houses
IPC: A01K31/04
Filed: 1922-08-08
Abstract: 200,388. Marshall, J. Aug. 9, 1922. Poultry houses.-A canvas belt is arranged beneath the perches to receive the droppings, the length of the belt being at least twice the distance between the rollers so that the two halves may be brought into use alternately by winding the belt first on one roller and then on the other. The belt passes over end rollers 5 to the winding-rollers 4 and is cleaned by scrapers 7 arranged above shoots 11, from which the droppings are removed through a trap door. The rollers 4 are provided with crank handles 19, toothed wheels 16, and locking- pawls 17. The belt may pass over guide rollers 6 or a ribbed supporting-board. Wire netting 10 may be detachably secured between the belt and the fixed perches 9.
Patent GB-428901-A (GB)
Title: Improvements in smoking pipes
IPC: A24F1/20
Filed: 1934-07-24
Abstract: 428,901. Tobacco pipes. GUNNLAUGSSON, S., c/o U.S. Engineers P.O. Building, Sacramento, California, U.S.A. July 24, 1934, No. 21681. [Class 130] Tobacco smoke passes through a tube 5 into a cavity 4 between the stem and mouthpiece, and leaves the top of the cavity through an inclined bore 6 in the mouthpiece, the position of which is indicated by a roughened surface on the exterior of the pipe. The cavity houses a crescent-shaped piece 12 of absorbent material extending the whole or part of its length.