baber/WOPTO huggingface dataset:
Patent GB-414144-A (GB)
Title: New or improved tilling attachment of the rotary tilling machine type
IPC: A01B33/06
Filed: 1933-02-03
Abstract: 414,144. Machines for working land. STOREY, N. C., 13, Leathley Road, Hunslet, Leeds. Feb. 3, 1933, No. 3373. [Class 6 (i).] A rotary tilling attachment for a tractor comprises earth-working tools mounted to be driven about axes slightly inclined to the vertical and mounted in a frame hinged to a wheeled main frame, a flexible draw-bar connection, a primary transmission shaft on the frame provided with means for driving it from the tractor, a secondary transmission shaft on the main frame, clutch devices interposed between the primary and secondary transmission shafts, an intermediate shaft on the hinged frame, a flexible coupling between the intermediate shaft and the secondary transmission shaft, gearing driven from the intermediate shaft for driving the tools, and means for lifting or lowering the hinged frame. The main frame 1 is mounted on two wheels 3 and is connected to arms projecting from the tractor 47 by a gimbal ring 50 and a connection 55 which allows it to rock about its longitudinal axis. The tool-carrying frame comprises side plates 15 and is hinged on the frame 1, springs 88 helping to support the weight. The rotary tools 43 are attached to rings 42 driven through the bevel and spur gearing shown from a shaft 34 universally jointed to a secondary transmission shaft 90 connected through a clutch 89 with the primary transmission shaft 59 which is connected through a jointed connection 60 with the power take-off shaft 61 of the tractor. The clutch 89 is operated through a lever 890, rod 891, double-ended lever 892, and ropes 893, 894. The direction of rotation of the tools may be reversed by reversing a shaft 32 carrying some of the bevel gearing. The tools are raised or lowered by tilting the tool frame by means of a screw 79 driven in either direction from the shaft 59 through clutches 63, 65 and the chain and spur gearing shown enclosed in the gear box 62. The clutch lever 69 is operated from the driver's seat by ropes fastened to a doubleended lever 71 connected by a rod 70 to the lever 69. Connected to the rod 70 is a rod 85 passing through an eye 84 on the trunnion nut 83 through which the screw 79 passes. When the tools reach their raised or lowered position the clutch lever is automatically moved into neutral position by engagement of the eye 84 with one or other of two collars 86, 87 on the rod 85. Specification 103,302, [Class 6 (i)], is referred to.
Patent GB-675392-A (GB)
Title: Improvements in electrical resistances
IPC: H01C7/00
Filed: 1950-02-09
Abstract: 675,392. Electric resistances. WILKINS, S. R., and AUTOMATIC COIL WINDER & ELECTRICAL EQUIPMENT CO., Ltd. Sept. 14, 1950 [Feb. 9, 1950], No. 3405/50. Class 37. [Also in Group XXXVII] A variable resistance comprises a resistance mesh 13, Fig. 2, deposited on an insulating base 12 and having a plurality of taps 14, the mesh being of such shape that the resistance between the taps 14 follows a predetermined law. Preferably the mesh is deposited by a photographic process from a drawing, Fig. 1, of the desired shape and size of mesh. The contacts 14 may be similarly produced. The resistance may be trimmed by removing a portion 17, Fig. 2.
Patent GB-1366061-A (GB)
Title: Catalytic exhaust gas treatment apparatus
IPC: F01N13/02
Filed: 1973-01-23
Abstract: 1366061 Treating exhaust gas CHEMICAL CONSTRUCTION CORP 23 Jan 1973 3451/73 Heading F1B An apparatus for the catalytic treatment of exhaust gas comprises two co-axial cylindrical catalyst beds 14 and 30 mounted in a container with an inlet 7 for exhaust gas to the centre of the inner bed 14 and an inlet for air between the beds and a gas outlet external of the outer bed, the inner bed being a catalyst for the reduction of nitrogen oxides and the outer bed being a catalyst for the oxidation of hydrocarbons and carbon monoxide. Exhaust gas from an engine 3 is collected in manifold 4, to which air may be supplied at 5 so that the manifold operates as an after burner. The gases leaving the manifold enter pipe 7 and pass radially outwardly through slits 8 and through inner bed 14 which is contained by cylindrical baffle 16 having slits 15. The gases then flow parallel to the container axis to the inlet end of the apparatus, around the edge of an intermediate baffle 18 and enter outer bed 30 through slits 29 in an inner cylindrical baffle 28. Air from a pump 20, enters inlet 24 and travels radially inwardly between plates 25 and 26, passes through apertures in a cylindrical baffle 27 and mixes with the exhaust gases before they enter outer bed 30. The air may pass through a heat exchanger 22 before entering the container. The mixture of air and exhaust gases leaves the outer bed through slits 31 in baffle 32, travels parallel to the container axis and leaves the apparatus by a pipe 35. An electrical resistance heater is provided to heat the gases and inner catalyst bed when the engine is started from cold. The heater consists of a wire strung zig-zag fashion between insulators 11 and 12 arranged in circles around opposite ends of the tube 7. The ends of the wire are brought out to a connection block 37, to which a supply cable 10 is connected.
Patent GB-536993-A (GB)
Title: Improvements in valves or cocks
IPC: F16K1/22
Filed: 1940-02-26
Abstract: 536,993. Valves. MILLER, T. W. Feb. 26, 1940, No. 3577. [Class 135] A simple valve adapted to be machined easily and to be of service when grit or corrosive substances are encountered is formed of a tubular wall 16 of rubber or rubber fabric and a disc 11 mounted on pivots 13, 22 which are passed through apertures in the wall 16 and are mounted in bearing parts 21, 26 of a hinged casing 17 the parts of which are held together by dowels 39 and bands 35 fitting on tapered parts of the casings. The disc 11 acts as a butterfly valve, and is of streamline shape in its open position. Collars 14, 23 with rounded edges 38 are secured to the disc 11, and afford a tight joint around the pivots 13, 22 by pressing the tube 16 against the casing. The tube 16 is secured at each end to the casing 17 by a short tube 27 which is grooved and clamps the tube to the casing. The tubes 27 are integral with screw unions 30 for connecting to inlet and outlet pipes,.and the hexagonal extensions 31 of the unions are engaged by overlapping ends 32 of the casings to prevent the tubes 27 from twisting. In a modification the collars 14, 23 and the wings of the disc 11 may be made in two parts separated by a resilient disc which makes a tight joint with the tube 16 when the valve is closed.
Patent GB-1071164-A (GB)
Title: Offset printing plates
IPC: C09D167/08
Filed: 1964-04-30
Abstract: 1,071,164. Printing plates. GEVAERTPHOTO-PRODUCTION N.V. April 30, 1964 [May 2, 1963], No. 3580/67. Divided out of 1,071,163. Heading B6C. [Also in Division G2] Lithographic printing plates are improved by lacquering the plate with a two-phase lacquer comprising an aqueous dispersion of a solution of an alkyd resin and a phenolformaldehyde resin in an organic solvent. The organic phase may also contain a drying oil, a pigment or a dye whilst the aqueous phase may contain a compound which improves the hydrophilic properties (e.g. phospheric acid or phosphates) or the hydrophobic properties (e.g. surface-active agents or mercapto compounds) of the plate, a thickening agent, or a bactericide. The printing plate is preferably produced by the silver salt diffusion transfer process such as that disclosed in Specification 913,591.
Patent GB-725306-A (GB)
Title: Improved thread clearing device for textile machines
IPC: B65H63/06
Filed: 1953-02-09
Abstract: 725,306. Clearing yarns. REINERS, W. Feb. 9, 1953 [Feb. 7, 1952], No. 3640/53. Classes 120 (2) and 120 (3). A thread clearing device for textile winding machines, &c., is provided with a clearing aperture 8 through which the thread 3 is arranged to pass, the slit being formed between parts arranged to move automatically to reduce the width of the slit 8 when a thick part 4 of the thread attempts to pass through, means being provided for adjusting the normal width of the aperture 8 and for simultaneously adjusting the force which is required to cause the movement which reduces the width of the aperture. A knob 15, provided with a scale, rotates a cam 13 to alter the position of a stop 11 on an arm pivoted in a bolt 6, so to vary the maximum aperture 8. At the same time, the pinion 16 moves a segment 17 to adjust the spring-force 9 which always acts to urge the clearer plate 7 in an anti-clockwise sense, (Fig. 1) away from the fixed member 1, 2.
Patent GB-120837-A (GB)
Title: An Improved Gland for Rotary Pumps.
Inventor: SAVERY WILLIAM EDWARD
IPC: F04D29/12
Filed: 1918-03-02
Abstract: 120,837. Savery, W. E. March 2, 1918. Stuffing-boxes, substitutes for.-Relates to rubbing-collar devices for rotary pumps, of the kind in which a ring secured to the centre of a flexible diaphragm bears on a ring carried by the shaft. The pump spindle a has a flange b, recessed to hold a ring c of lignum vitµ &c., on which bears a metal ring and secured to a flexible diaphragm e of rubber, leather, or corrugated metal. The rings are pressed together by a spring f enclosed in a sleeve k and bearing on a plate g attached to the pump casing. The outer edge of the diaphragm is secured between plates i, j, one of which is screwed into the casing, a ring l being interposed to protect the diaphragm while the plate j is being screwed up.
Patent GB-1410421-A (GB)
Title: Platform floor construction
IPC: E01C9/08
Filed: 1973-01-25
Abstract: 1410421 Metal floors K KLAUS 25 Jan 1973 [5 Feb 1972 10 June 1972 22 July 1972] 3713/73 Heading E1K [Also in Division F2] A vehicle carrying platform or ramps comprises an assembly of side-by-side inverted channel beams 10 (e.g. of galvanised steel) each having at least one anti-slip rib 4 of triangular or other section, the beam 10 being interlocked with their side walls 12, 13 in close contact by means of an inwardly-facing flange 15 on wall 12 engaging in an outwardly-facing and upturned flange 16 on wall 13. The upturned portion 7 of flange 16 may be bent over after interlocking. The platform may be inclined or curved so that flanges 16-7 provide lateral drainage channels. The side walls 12, 13 may be perpendicular to the channel base, Fig 2 (not shown) or may be differently inclined so that the assembly arches upwardly before being bolted down to the platform supports. The supports 8, 9 shown form part of a mechanical parking apparatus.
Patent GB-290348-A (GB)
Title: An improved vulcaniser
IPC: B29C35/00
Filed: 1927-02-10
Abstract: 290,348. Stamboise, A. A. Feb. 10, 1927. Stoves for treating rubber.-A portable vulcanizing outfit comprises an arched casing provided with a pivoted handle member 17 carrying a preeser member 19 between which and a boss 20 on the top of the casing the tyre &c. to be vulcanized is clamped, pressure being applied by a swing bolt 22 pivoted to a lug 21 on the casing. A removable spirit lamp 30 slides on shelves 26 within the casing and is held in position by projections 32 interlocking with recesses 29. The spirit chamber 33 of the lamp is provided with an inwardly-directed Range 34 and an undercut recess 35 to prevent the spirit spreading over the top of the lamp when alight. The lid of the box containing the patching rubber may be of such a size that it will hold just sufficient spirit for use in one vulcanizing operation. Specification 271,230, [Class 70, Indiarubber &c.], is referred to.
Patent GB-859730-A (GB)
Title: Process for the production of polypropylene and catalysts therefor
IPC: C08F4/64
Filed: 1959-02-03
Abstract: Solid polypropylene is obtained from the monomer by use of a catalyst prepared by reducing an aluminium trihalide to aluminium with an alkali metal in a inert atmosphere (e.g. argon and in the absence of reactive hydrocarbons, and forming a mixture of the Al so formed with TiCl2 the atomic ratio Al:Ti in the mixture being at least 2:1, and aluminium trihalide and higher chlards of titanium being absent. Specifically, AlCl3 may be reduced in presence of (a) TiCl2 or (b) TiCl3 or TiCl4 (thereby reduced to TiCl2), the reaction being conducted in either case at 80-110 DEG C. in an inert liquid diluent preferably comprising at least one aliphatic, cycloaliphatical aromatic hydrocarbon which is a solvent for AlCl3.  The Al may be an alloy with Mg and the alkali metal is usually Na, K, Li or an alloy such as Na/K, AlBr3 is also a specified starting material. Methanolic hydrochloric acid and aqueous methanol may be used in isolating the polymer.  The production of polyethylene copolymers of ethylene and propylene is also mentioned.ALSO:A polymerization catalyst is prepared by reducing an aluminium trihalide to aluminium with an alkali metal in an inert atmosphere (e.g. argon) and in the absence of reactive hydrocarbon, and forming a mixture of the Al so formed with TiCl2, the atomic ratio Al:Ti in the mixture being at least 2:1, and aluminium trihalide and higher chlorides of titanium being absent. Specifically AlCl3 may be reduced in presence of (a) TiCl2 or (b) TiCl3 or TiCl4 (thereby reduced to TiCl2), the reaction being conducted in either case at 80-110 DEG C. in an inert liquid diluent preferably comprising at least one aliphatic, cycloaliphatic or aromatic hydrocarbon which is a solvent for AlCl3.  The Al may be in the form of an alloy with Mg and the alkali metal is usually Na, K, Li or an alloy such as Na/K; AlBr3 is also specified as a starting material.
Patent GB-476087-A (GB)
Title: Improvements in and relating to dials for radio apparatus
IPC: H03J1/04
Filed: 1937-02-09
Abstract: 476,087. Adjusting wireless apparatus. IDEAL WERKE AKT.-GES. FUR DRAHTLOSE TELEPHONIE. Feb. 9, 1937, No. 3815. Convention date, March 16, 1936. [Class 37] In wireless apparatus wherein the transmitter designations on a dial window are projected, on an enlarged scale, on to a surface from which they are read, the dial for one wave range comprises parts 3 each bearing a plurality of transmitter designations and being individually slidable in guides 5 on the dial plate 1 whereby the parts 3 may be correctly located relative to the vertically adjustable stirrup 4 or other tuning indicator and then held frictionally or by screws or other means. In the case of an indicator inclined to its direction of movement the correcting movement of the dial parts 3 may be transverse to the movement of the indicator. The gaps between the dial parts 3 are covered, for example, by stuck on strips, of the same translucency as the base of the dial parts 3 which may be opaque with transparent designations. Alternatively, the dial may be movable and the indicator fixed.
Patent GB-1515631-A (GB)
Title: Tank for storing liquefied gas and utilisation of said tank for storing butane
IPC: F17C7/04
Filed: 1976-01-30
Abstract: 1515631 Revaporizing gases COMPAGNIE FRANCAISE DE RAFFINAGE 30 Jan 1976 03815/76 Heading F4P Liquefied gas, e.g. butane, in a tank 1, is revaporized by a heater 5 acting on the liquid within a chamber defined by a partition 8 which provides communication at upper and lower parts between the chamber and the remainder of the tank, vaporized gas being removed via line 10. As shown, the partition 8 forms a flue having an open lower end 9 and apertures 11 at the upper end. In another embodiment, Figs. 3, 4 (not shown) the partition 8 is a vertical planar sheet. The heater 5 may be electrical or, as shown, is a heating coil having hot water from a boiler 6 circulated therethrough by a pump 7. The boiler and pump are controlled by a pressure dependent device 13 which thus controls the gas pressure in the tank.
Patent GB-1166629-A (GB)
Title: Numbering Arrangements
Inventor: ELSWORTH JOHN FRANCIS
IPC: B41K3/12
Filed: 1966-01-28
Abstract: 1,166,629. Numbering apparatus. KENRICK & JEFFERSON Ltd. 26 April, 1967 [28 Jan., 1966], No. 3878/66. Heading B6C. In addition to receiving sequential numbering, sheets passing through a numbering apparatus are simultaneously marked with a symbol, calculated, for example, on a predetermined weighted mod 11 system. In the apparatus shown, a numbering box carried on a rotatable shaft 10 comprises conventional numbering type wheels and an additional type wheel element 13 which is actuated through the engagement of a follower roller 18 pivotally mounted about the shaft of the element 13 with a two-part cam-track 19, one part, 20, of which is fixed to thus provide regular, i.e. equal, incremental advance steps of the type wheels of the element. Type wheel advance steps of an irregular nature to provide the calculated symbols on the numbered sheets are effected when the roller 18 traverses the movable part 21 of the track 19. This track part 21, which is pivotally mounted on an arm 25 about a fixed axis 22 parallel to the shaft 10, is located relative to the axis of the shaft 10 by a rotatable camwheel 23 which is rotated step-by-step by a pawl-and-ratchet mechanism 27, 28 driven from an eccentric 29 rotating with the shaft 10. Lobes 26, 26a, on the cam 23, coact with the arm 25 which is spring-loaded against the cam.
Patent GB-726332-A (GB)
Title: Improvements in or relating to electrical ignition devices
IPC: H01T13/52
Filed: 1953-02-12
Abstract: 726,332. Sparking plugs. LODGE PLUGS, Ltd., and BLAND, M. H. Feb. 12, 1954 [Feb. 12, 1953], No. 3925/53. Class 7 (4). In an ignition device comprising a length of cable made up of a central core 10, Fig. 1, and an outer sheath 11, both of which have electrical conducting and heat resisting properties, with an intermediate mineral insulation 12 located between the sheath 11 and core 10, sparking is effected at one end of the cable either on the surface of a semi-conducting material, such as a ceramic pellet 20, Fig. 2, situated between the firing tip 13 of the core 10 and the corresponding end of the sheath 11 or across an air gap between the firing tip 13 and a sheath flange 14, Fig. 1. Separate earth electrodes of platinum, for example, may be secured in place of the flange 14, and the plug may be a continuation of the ignition lead or may have a contact button 16 for connection with the latter. A member 18 on the sheath may be threaded for attaching the plug to engine or flame thrower, or as shown, the flange may be engaged by a threaded collar. The outer end of the plug shown in Fig. 2, which may be bent to any required configuration, houses a screened connection 21 for the ignition cable 22 connected to the core button 16 by the cable button 23. The plugs are screened and may be of any required length. The core and sheath may be of stainless steel, copper, nickel, iron or a nickel-chrome alloy whilst the intermediate insulation may be an oxide of aluminium or magnesium ; the plug may comprise a length of low-tension cable such as that sold under the Registered Trade Mark " Pyrotenax."
Patent GB-1281541-A (GB)
Title: Production of 1,1,1-trichloroethane
Inventor: CAMPBELL ALASTAIR
IPC: C07C17/10
Filed: 1969-01-23
Abstract: 1281541 Chlorination process IMPERIAL CHEMICAL INDUSTRIES Ltd 8 Jan 1970 [23 Jan 1969] 3943/69 Heading C2C 1,1,1 - Trichloroethane is produced by continuously introducing 1,1 -dichloroethane and chlorine into a tubular reactor closed at one end, thereby producing a turbulent reaction zone at the closed end. The hot reaction gases entrain fuse feed into the turbulent zone. Reactants are suitably introduced through a conduit or conduits extending downwardly towards the closed end of the reactor. These may take the form of the vertical arm of a T-piece or an exit jet from the bottom of a U-tube, the reagents being introduced separately into the other arms. Temperatures of 300-450‹ C. and contact times of at least 5 seconds are specified. Vinyl chloride and vinylidene chloride are produced as by-products, and the process may be part of an integrated cycle in which the reaction product of the chlorinator is fractionally distilled to give a heavy fraction of 1,1,1-trichloroethane and a light fraction of vinyl chloride and vinylidene chloride, the light fraction and a vinyl chloride feedstock are hydrochlorinated in a Friedel-Crafts-catalysed liquid-phase reaction to give 1,1-dichloroethane and 1,1,1-trichloroethane, and the 1,1-dichloroethane is recycled to the chlorinator. Hydrochlorination is preferably effected using a ferric chloride catalyst in nitrobenzene. Hydrochlorination temperatures of 20‹ to 70‹ C. are specified. Chlorination and hydrochlorination may be effected under atmospheric or superatmospheric pressure. Other chlorination by-products are 1,2-dichloroethylene and 1,1,2-trichloroethane.
Patent GB-507943-A (GB)
Title: Improvements in or relating to hydro-mechanical coupling devices
IPC: G05D1/00
Filed: 1938-02-08
Abstract: 507,943. Fluid-pressure servomotor-control systems; steering-gear for aircraft and ships hydraulic apparatus. MERCIER, P. E. Feb. 8, 1938, No. 3958. Convention date, Feb. 13, 1937. [Classes 69 (ii) and 135] [Also in Group XXXIII] A coupling 'device particularly adapted for use in steering-apparatus on aircraft or ships to give a displacement of a driven member in accordance with the displacement and rate of displacement of a driving member comprises a resilient mechanical connecting means and a superposed hydraulic connecting means with an open but adjustable valve for modifying the controlling effect in accordance with the speed of the driving member. Further orifices adapted to be masked at times by a system of sleeves or the like and fitted with spring-loaded valves orequivalent devices limit the effect of the superposed hydraulic connecting means. In the form shown a slidable driving member 2 is adapted to act on a slidable driven member 3 through a pile of Belleville spring washers 6 in each direction of movement. The member 1 is provided with a central piston 24 slidable in a fixed casing 25 and at each end is hollowed out to form cylinders 19, 20, housing pistons 14, 15 on the member 3. These pistons are held against shoulders 16, 17 on the member 3 by nuts 13, 18. The central part of the member 2 is formed with passages 21, 22 adapted to establish communication between the inner ends of the cylinders 19, 20 and the chambers 32, 33 on either side of the piston 24, the outer ends of the cylinders being open to atmosphere through ports 40, 41. The central part also has symmetrical passages 23 provided with spring- loaded ball valves 50 adapted under certain circumstances to connect the two sides of the piston 24. The outlet ports from these valves may be masked during part of the travel of the member 2 by sleeves 28, 29 supported by the casing 25. The chambers on the .two sides of the piston 24 are connected through a conduit 36 fitted with an adjustable throttle 37, and a connection 38 fitted with a non-return valve 39 is provided to connect the device to a source of fluid under pressure. A movement of the driving member away from the neutral or midposition tensions the spring washers either by removing the washer 6 away from the fitting 17 or by sliding the sleeve 11 along the rod 9. At the same time hydraulic pressure is generated in one of the chambers 32, 33 and is communicated through passage 21 or 22 to chamber 19 or 20 to act on pistons 14 or 15. Should this pressure exceed that corresponding to the loading of the valves 50 54, fluid passes through one of the valves from one chamber to the other ; otherwise fluid passes at a restricted rate from one chamber to the other through the pipe connection 36 and adjustable throttle 37. During the return movement to the neutral position the valve 50 or 54 which otherwise would be operative is prevented from operating by sleeve 28 or 29 closing the associated valve discharge port.