baber/WOPTO huggingface dataset:
Patent GB-1270115-A (GB)
Title: Improvements in or relating to mine roof support devices
Inventor: TRISTRAM WILLIAM FRANCIS
IPC: E21D17/054
Filed: 1969-03-05
Abstract: 1,270,115. Mine roof support frames. BONSER ENG. Ltd. 5 March, 1969, No. 11739/69. Heading E1P. In a mine roof support frame 1, 2, 3 incorporating a pivotal extension 7 adapted to function as a roof support when raised or a shield when lowered, the member 7 is urged against the mine roof by a pivotally mounted ram 9 and is retracted thereby or by means of gravity or by a spring; In a modification, see Fig. 2 (not shown), the ram 9 is mounted on a bracket attached to the roof supporting member 2 and is pivoted to an arm suspended from the member 7.
Patent GB-1111348-A (GB)
Title: Improvements in and relating to apparatus for dressing the flanks of grinding wheels
Inventor: BRANDNER GERHARD
IPC: B24B53/08
Filed: 1966-03-17
Abstract: 1,111,348. Trueing grinding wheels. GROSSDREHMASCHINENBAU " 7 OKTOBER " VEB. 17 March, 1966, No. 11756/66. Heading B3D. A grinding wheel 20 used for grinding gear teeth is dressed by a pair of diamond tools 18, each being mounted on a lever 7 provided with a swivelling shaft 8 and an additional shaft 10 the axis of which intersects the axis of the swivelling shaft at right-angles and extends parallel to the tangent to the movement path of the tool, the lever being supported against a housing 3 in the axial direction of the tool by cam surfaces co-operating with followers 22, 23, 26 secured to either the housing or lever. Each housing 3 is mounted for angular adjustment about a bearing 6 on a guide plate 2. The machine drive is connected to a pin 82 of a block 81 mounted in a slot 9 in the lever for rotating the lever in the direction of arrow 16. The lever is drawn against the housing by a spring 13 and can swivel about a pin 10 under the influence of the cam surfaces. Either the followers 22 and 23 or the followers 22 and 26 may function together depending on what form of gear tooth the grinding wheel is for. The follower 22 is arranged to co-operate with a cam (21), Fig. 6 (not shown) having a plane cam surface (212) parallel to the shaft 10 and a sloping cam surface (211). The follower 23 is secured to the rear end of the lever and cooperates with a cam surface (24), Fig. 4 (not shown) which extends parallel to the shaft 10 and is formed by a flattened bolt (25) passing through the housing (3). The follower 26 is arranged to co-operate with a pair of cones (27), (28), Fig. 5 (not shown), which can be brought into operation by knurled adjustment screws (32), (33), (292), (301).
Patent GB-722926-A (GB)
Title: Improvements in or relating to methods of manufacturing adhesives
IPC: C09J161/34
Filed: 1952-05-09
Abstract: Aqueous solutions of heat-hardenable urea-formaldehyde condensates also contain a polyhydric phenol and a primary aromatic amine.  They are useful as adhesives and have an increased shelf life without an unduly prolonged hardening time. Suitable polyhydric phenols are resorcinol and phloroglucinol. Suitable amines are aniline and toluidine.  Ammonium chloride may be added to reduce the hardening time of layers of the dried solutions.  At least 5 gms. of polyhydric phenol and 0.05-0.07 mol. of primary amine are preferably added/100 gms. of urea-formaldehyde condensate.  Examples compare the shelf lives of solutions with and without added ammonium chloride and containing aromatic amine but no phenol.  They also describe experimental manufacture and testing of plywood employing solutions according to the invention, and comparing them with other solutions.
Patent GB-716613-A (GB)
Title: Method for drying electric cable cores by dielectric heat-treatment
IPC: H01B13/30
Filed: 1951-05-21
Abstract: 716.613. Drying in electric fields. OSNABRUECKER KUPFER - UND DRAHTWERK. May 21, 1951 (Aug. 13, 1949; Feb. 8, 1950], No. 11793/51. Class 34(2) [Also in Group XI]  In the drying of cable cores by dielectric heating, the high frequency oscillations are a mixture of oscillations produced by a spark-gap in the oscillatory circuit. A high frequency generator consisting of a variometer 1 a transformer 2 and a quenched spark gap 3 is connected through a capacitance 4 to the two conductors 5 of a two-conductor cable which is contained in a heated and evacuated drying vessel. In the case of metal sheathed cables having one or more cores the sheath or metallized screening forms one electrode and various electrical circuits are shown, the oscillatcry circuit or the complete generator being installed beside the drying vessel to avoid the need for additional supply cables. The cables may be additionally dried at the same time by maintaining the drying chamber at 120‹C under reduced pressure.
Patent GB-1511133-A (GB)
Title: Endoscope
IPC: A61B1/303
Filed: 1977-03-21
Abstract: 1511133 Endoscope OPTOTECHNIK HEINE KG 21 March 1977 [13 Aug 1976] 11804/77 Heading A5R An endoscope comprises a head 28 comprising an outer housing 1 with a projection 27 through which a light-fibre bundle 26 passes into the head, a tube or speculum 29 comprising an outer tube 14 of light-conducting transparent synthetic material and an inner tube 17 of light-absorbing material (e.g. black), and outwardly protruding ribs 19, 20, 21 keeping the tubes spaced apart. The head 28 and tube 29 are coupled disconnectably by coupling elements 31' attached to coupling ring 31 and associated grooves in the connection piece 36. The outside surface of outer tube 14 may have a thin coat 13, Fig. 6 (not shown) of a material of lower refractive index than the material of outer tube 14. Instead of ribs 19-21, other spacers such as localised projections or circular-segmentshaped ribs may be formed on the outer and/or inner tube.
Patent GB-118099-A (GB)
IPC: B64C11/00
Abstract: 118,099. Cardoso, A. July 17, 1918. Propelling.-Apparatus intended for propelling air, land, or water vehicles comprises a casing B closed at its front end, which is mounted in or secured to the vehicle and provided at its open rear end A with a screw or other rotary or reciprocatory propeller D arranged to produce a vacuum in the casing B. A valve H is arranged in front of the propeller.
Patent GB-332276-A (GB)
Title: An improved process for the production of intaglio printing surfaces for intaglio printing of all kinds
IPC: B41C1/02
Filed: 1929-04-16
Abstract: 332,276. Klinger, R.. April 16, 1929. Etching.-In the production of intaglio printing-surfaces for the printing of pictures having half-tones, by the superficial etching of a metallic surface, the parts of the metallic surface to be subjected to the action of the etching medium are provided with a granulation which is etched into the depth by protecting the side,s of the grain while leaving the apices as well as the bottoms of the spaces between the individual grains exposed to the action of the etching medium. The preliminary graining of the surface may be effected in any known manner, after which it is inked slightly by a weak greasy ink, sprinkled with pulverized asphalt, and heated, so that the ink fuses and runs down the sides of the grains without entering the bottoms of the spaces between the grains. After the ink &c. have cooled and set the apices of the grains are exposed by scraping or grinding, whereupon an etching medium is applied.. The etching medium is preferably a known weak solution of iron chloride dissolved to a density of from 45-40‹ BeaumÚ. The printing-surface may be subjected to a preliminary etching prior to graining by the sand blast or other means, after which the etching by the above process is effected. Parts of a surface may be etched into the depth and the remaining portion etched in the usual manner.
Patent GB-650986-A (GB)
Title: Torque limiting means more particularly for engine starters
IPC: F02N3/00
Filed: 1948-04-30
Abstract: 650,986. 'Turning gear. BENDIX AVIATION CORPORATION. April 30, 1948, No. 11909. Convention date, May 6, 1947. [Class 7(v)] [Also in Group XXIV] In an engine-starter drive a multi-disc slip-coupling comprises bronze discs 36 splined in an outer driving barrel 18 and having graphite-grease-filled holes 88 surrounded by depressions 94 (produced e.g. during punching) on the side where they frictionally engage the chrome-plated surface 82 of imperforate steel discs 34 splined on an inner driven member 30. In Fig. 6 two bronze driving discs 36 are interposed between each of the driven steel discs 34, the burrs 92 produced during punching the holes 88 being arranged on adjacent idle sides, which provides spacing for additional lubricant. With single interposed driving discs the burrs are removed and depressions 94 formed on both sides and these discs may also be used in pairs as in Fig. 6. The holes 88 are arranged in sets of three, cicumferentially spaced around the disc and at different radii to cover its entire width. Friction pressure is adjusted by an end-screw 44 acting through a spring 40. In the inertia- or direct-type starter drive shown, a flywheel 47, cranked by hand or power through a claw'59, bevel gearing 51, 49, an additional coupling-pack 56, barrel 18 and the operative gearing (as follows), drives an axially-movable starterdog 52 through a pinion 41, stepped countershaft pair 31, 29, and an internal ring-gear 27 fast to a driving sun 26 of a planet-train, the planets 22 of which mesh a permanently fixed reaction ring-gear 24 and are carried by the outer driving barrel 18 of the slip coupling, the inner driven member 30 of which is internally screwthreaded to engage a male-threaded member 46 splined in the starter-dog 52. The latter is axially advanced into engagement with the engine-dog through an inner rod 48 operated by a lever 63, or in the case of direct cranking, the dog may be advanced by the screwed member 46. A sealing-ring 58 surrounds the dog 52. Specification 650,985, [Group XXIV], is referred to.
Patent GB-387185-A (GB)
Title: Improvements in metal frameworks for use in buildings, vehicles and the like
IPC: E04B1/24
Filed: 1932-04-26
Abstract: 387,185. Structural metalwork. LEE, D. H., c/o Aston Construction Co., Eagle Wharf Road, Hoxton, London. April 26, 1932, No. 11915. [Class 20 (ii).] Metal section-bars are joined to tubular structural members at angles by means of internal fittings to the hollow structural members, which are perforated to receive the ends of the section-bars. Bridging-pieces 11 may be used inside the hollow member, and where the meeting structural members are of different depths the end of one 10 may be supported on the end of the other 9, the end of which is carried by a packing-piece 13 resting on the bridging-piece. In another construction, the ends of the meeting members are supported independently on angle-supports 28, Fig. 5. External supports may be provided in addition. The hollow tubular members may be formed of channels 6 with thin webs and with meeting edges which are welded.
Patent GB-591748-A (GB)
Title: Improvements in or relating to pedal mechanism for bicycles and other foot-operated machines
IPC: B62M1/00
Filed: 1945-05-15
Abstract: 591,748. Pedal mechanism for bicycles and other foot-operated machines. COX, D. R. May 15, 1945, Nos. 12163 and 17310. [Class 136 (ii)] In a bicycle or other foot-operated mechanism a pedal mechanism is associated with means directly attached to the bicycle frame which result in the foot moving faster than the crank or normal pedal movement for the first part of the downward movement and slower at the end of the downward movement. The pedal member 11 is pivoted by its forward end on a spindle directly or indirectly to the crank 13 and a link supporting means comprising an upright 14 is formed integral with the pedal member, the upper end of the part 14 being secured by a cord or rod 15 to a point 16 or extension of the bicycle frame. The rear end of the pedal during the first part of the power stroke moves faster than the front end to tilt the pedal whereby the mechanical advantage is obtained during that part of the stroke. In a modification, Fig. 3, the rod is substituted for a cord 17 which is anchored by means of secondary cords 18 and 19 with the rear of the bicycle frame and with the spindle of the pedal. In Fig. 5, the top or free end of 14 slidably engages a rail 20 secured to the frame. In Fig. 6, the upright 22 is of curved formation slidably engaging slotted means 23 fixed to the frame of the bicycle. The two pedals may be connected together by a cord adapted to run over a pulley 29 fixed to the frame.
Patent GB-568740-A (GB)
Title: Improvements in and relating to calender rollers
IPC: B29B7/62
Filed: 1943-07-27
Abstract: 568,740. Calender rollers. BATES, E. B. July 27,1943, No. 12170. [Class 34 (i)] A calender roller 10 is heated by a non- rotatable radiator 12 which is located within the roller and is itself heated by steam or hot air &c. circulated therethrough from an inlet pipe 13 to an outlet pipe 14, the pipes 13, 14 extending through the hollow trunnions 11 of the roller, and heat-exchange between the radiator and roller being effected by a heatconducting liquid 16, such as glycerine, oil or mercury, contained in the said roller. The radiator may also be heated by a gas burner or an electric heater. Radiating fins 15, preferably formed as a helix, are provided on the radiator, and leakage of the liquid 16 is prevented. by throwers 17 mounted on the pipes 13, 14.
Patent GB-117977-A (GB)
Title: ImprovementS relating to Wheels for Automobiles.
Inventor: MOLINA EUGENIO DE LAS HERAS
IPC: B60B9/22
Filed: 1917-08-24
Abstract: 117,977. Molina, E. De Las H., and Alcantarilla, L. B. Aug. 24, 1917. Tyres with rims enclosing air tubes or chambers.-The pneumatic tyre 1 is enclosed by side flanges 13 bolted to the rim 3, the outer edges of the flanges carrying rings 15, 16 which act as guides for radial blocks 5 linked to the chain tread 6. At their inner ends, the blocks 5 are connected by links 10 to heads 9 shaped to bear on the pneumatic tyre.
Patent GB-1498327-A (GB)
Title: Disc-type rotor for a gas turbine
IPC: F01D5/08
Filed: 1976-03-26
Abstract: 1498327 Cooling gas turbines KRAFTWERK UNION A G 26 March 1976 [1 April 1975] 12399/76 Headings F1G and FIT Each intermediate ring 4 separating the bladed discs of a gas turbine rotor is provided with axial bores 12 connecting an annular cooling gas supply gap 8, sealed from the working gas by a centrifugal ring 10, to an annular gap 7 open to the working gas but closed at its radially inner end. Each bore 12 contains a square cross-section element 13 which is twisted through at least 180 degrees along its length so as to form helical paths for the cooling gas and thus improve heat transfer. Gaps 8 also . supply cooling gas to axial grooves in the roots of blades 3.
Patent GB-354264-A (GB)
Title: Improved process of sensitizing photographic emulsions
IPC: G03C1/18
Filed: 1930-02-03
Abstract: Naphthothiocarbocyanines and their analogues in which the sulphur is replaced by oxygen or selenium are used to sensitize photographic emulsion for wavelengths greater than 640 m .  The dyestuffs may be prepared by condensing a 1-methylnaphthothiazolinium quaternary salt with ethyl o-formate in pyridine.  In an example, 1-methyl-a -naphthothiazole or a halogen substitution product thereof is condensed with ethyl p-toluene sulphonate and the crude product dissolved in dry pyridine and heated with ethyl o-formate, the dye being precipitated by adding excess of ammonium bromide.  Methyl naphthoselenazoles and naphthoxazoles may be used in place of the naphthothiazoles; the quaternary salts obtained by heating methylnaphthoselenazole and also 2-methyl-b -naphthoxazole with ethyl-p-toluene sulphonate are mentioned.  Methylnaphthoselenazole may be prepared from nitro-2-naphthylanine by the known process for obtaining 1-methylbenzoselenazole from o-nitraniline.
Patent GB-706927-A (GB)
Title: Improvements relating to ship's order telegraph systems
Inventor: DOUGLAS GRAHAM MCKINNON
IPC: G08B9/00
Filed: 1951-05-29
Abstract: 706,927. Electric signalling systems. MECHANS, Ltd. May 29, 1952 [May 29, 1951], No. 12546/51. Class 40 (1). A visual and audible signal is sent from the bridge 1 of a ship to the engine room 2 by the movement of a control handle 4 connected to two ganged, independent transmitters : receipt of the order at the engine room 2 is acknowledged by corresponding movement of a control handle 34 to the appropriate position, thereby controlling two similar ganged transmitters. Audible signals.-Movement of the handle 4 on the bridge to an " astern " order causes switch contacts 6 to be closed by cam projections 5 as it passes through each order, each closure producing a signal on a gong 10 in the engine room, the number of strikes on the gong being therefore indicative of the final position of the handle 4. " Ahead " orders are similarly indicated by strikes on a separate gong 11 produced through a separate circuit via movable contacts 7 on the bridge. Receipt of the signal in the engine room 2 is acknowledged by a corresponding movement of a control handle 34 thereby closing contacts 26 an equal number of times by cam projections 25, to send the same number of impulses to a buzzer 27 on the bridge. Visual signals.-Movement of the bridge control handle 4 changes the feeder .arms of a toroidal resistance 12 having three points connected to corresponding points on two parallel receivers 17 in the engine room, whose armatures therefore indicate the position of the bridge control handle 4. A similar variable toroidal resistance 29 controlled in the engine room by handle 34 confirms receipt of the signal to the bridge via parallel receivers 30. Alarm signals.-A wrong-way warning device comprises a gong 35 in the engine room which is energised when the bridge control handle 4 indicates e.g. an " ahead " order, thereby making a moving arm 21 contact a fixed arm 22, and the propellor shaft moves in the "astern" direction, thereby making a moving arm 37 contact a fixed arm 39, producing intermittent operation of the gong 35, and a parallel lamp 36. A similar warning is produced when the bridge orders "stop," and the propellor shaft rotates.
Patent GB-823921-A (GB)
Title: Jacketed body
IPC: G21C3/04
Filed: 1946-04-25
Abstract: 823,921. Nuclear fuel elements. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. April 25, 1946 [May 22, 1945], No. 12572/46. Drawings to Specification. Class 39(4). In a nuclear reactor fuel element two full cylinders are secured, end to end, by a bolt engaging both cylinders along their central axes. The combination is sheathed, and a sealed, air-filled compartment in each outer end reduces heat leakage through the end surfaces. The sheath, formed of two cupshaped containers is sealed at the junction between the cylinders either by a weld or by the pressing together of the edges of the sheaths on each cylinder by the joining bolt. The fuel cylinder and sheaths are bonded together. Materials used : fuel, uranium ; sheath, aluminium or stainless steel ; bonding material, aluminium-silica or zinc-tin.
Patent GB-787197-A (GB)
Title: Means for protecting the banks of canals or other waterways
IPC: E02B3/12
Filed: 1955-04-30
Abstract: 787,197. Coated fabrics. COLQUHOUN, R. S., and F. A. (MEMBRANES), Ltd. April 13, 1956 [April 30, 1955], No. 12601/65. Drawings to Specification. Classes 42 (1) and 140. [Also in Group XXI] Strips consisting of a water-resistant base, formed of random placed glass or other fibres bonded with a thermosetting or other resin, which is coated on both sides with a filled bituminous coating, are bonded along overlapping edges by treatment such as heating or fluxing with a hydrocarbon solvent.
Patent GB-751278-A (GB)
Title: Method and apparatus for making semiconductor devices
IPC: H01L21/00
Filed: 1954-04-30
Abstract: 751,278. Semi-conductor devices. RADIO CORPORATION OF AMERICA. April 30, 1954 [May 28, 1953], No. 12663/54. Class 37. A semi-conductor body comprising PN junctions is produced by applying a holder to define an aperture on each side of the semiconductor body and applying impurity material to the surface of the body within the apertures. Fig. 1 shows a clip-shaped nickel or steel holder 6 with tinned surface 8 and with apertures 10 and 11, holding a germanium or silicon body 2. Pellets 16, 18 of impurity material such as indium, thallium or antimony are placed in carbon tubes 12 and 14 lodged in the apertures against the side of body 2. Lead wires 20 and 22 of gold, platinum or palladium are placed against the impurity pellets. Heating to a temperature between 600‹ and 900‹ C. is effected by means of coils 30 and 32 to alloy the impurity with the semi-conductor material, in an atmosphere of hydrogen or argon. The process also solders the clip 6 to the body 2 and fuses the lead wires 20 and 22 to the impurity. Fig. 4 shows the completed device constituting a transistor with base electrode 6, and alloy junction emitter and collector electrodes 16<SP>1</SP> and 181. Emitter and collector junctions may thus be formed simultaneously, while receiving different: appropriate heating treatments.
Patent GB-794466-A (GB)
Title: Protecting metals against attack by mineral acids
IPC: C09D109/00
Filed: 1956-04-25
Abstract: A coating composition which is applied to a metal surface and baked thereon comprises a liquid polymer or copolymer of a conjugated diolefin and 0.1-5 per cent ethyl orthosilicate, together with a metal drier such as cobalt naphthenate.  Specified polymers are those of butadiene, isoprene, dimethyl butadiene, piperylene and methyl pentadiene, their mixtures, and their copolymers with up to 40 per cent of styrene, p-methyl styrene, dimethyl styrene, acrylonitrile, methacrylonitrile, methyl acrylate or methacrylate, vinyl isobutyl ether, methyl vinyl ketone, and isopropenyl methyl ketone.  A metallic drier such as cobalt naphthenate may be present.  The coated surface, e.g. of previously cleaned and pickled steel plates, is preferably baked in a non-oxidizing atmosphere at 350-475 DEG  F. to provide an acid-resistant coating or liner.  Several coatings may be applied. Pipes, valves and other fittings may also be coated.ALSO:A coating composition comprises a liquid polymer or copolymer of a conjugated diolefin and 0.1 to 5 per cent of ethyl orthosilicate. Specified polymers are those of butadiene, isoprene, dimethyl butadiene, piperylene and methyl pentadiene, their mixtures and their copolymers with minor amounts (up to 40 per cent) of styrene, p-methyl styrene, dimethyl styrene, acrylonitrile, methacrylonitrile, methyl acrylate or methacrylate, vinyl isobutyl ether, methyl vinyl ketone, and isopropenyl methyl ketone.  A metallic drier such as cobalt naphthenate may be present forming a composition which may be applied to a metal surface and baked, preferably at 350-475 DEG  F., to produce an acid-resistant coating.
Patent GB-307244-A (GB)
Title: New or improved fastening means for bed-clothes and the like
IPC: A47C21/02
Filed: 1928-04-30
Abstract: 307,244. Knutsson, K. E. April 30, 1928. Clips, lever for securing bed - clothes comprise a wire frame 1 bent as shown to form jaws between which the edges of the clothes, are inserted and clamped by a lever 2. The free end 5 of the lever is bent so as to snap over a portion 6 of the frame to retain the lever in clamping position. The clamping end of the lever may be in the form of a loop 3, Fig. 1 to make it resilient, or of V-form, 4, Fig. 3.