baber/WOPTO huggingface dataset:
Patent GB-428159-A (GB)
Title: Advertising cabinet
IPC: G09F13/12
Filed: 1934-04-24
Abstract: 428,159. Changing signs. AUSTIN, S. T., 111, St. John's Road, Hoxton, and ELMAN, T. A., 25, Budge Row, Queen Victoria Street, both in London. April 24, 1934, No. 12288. [Class 3 (i)] In display devices of the type comprising an inclined transparent mirror on each side of which is disposed an object adapted to be illuminated in turn whereby the objects are seen respectively by reflection at the mirror and by direct viewing through the mirror, and appear to occupy the same position, a transparent mirror 27 is located between one object 26 and the inclined mirror 19 and a sheet of black or of mirrored glass 29 is placed below the mirror 19. The mirror 27 reduces the light intensity of the object 26 to bring it more nearly to that of the object 25, as the mirror is formed to reflect more light than it transmits. The sheet 29 is arranged parallel to the mirror 27, and is provided to give a foreground to the object 25 which is similar to that seen in front of the object 26 owing to a reflection of the glass window 2 being seen with the object 26. A flashing switch 22 lights the lamps 20 and 21 in succession. Translucent coloured or display panels 4, 5 may be provided, the former being lit intermittently by the lamp 21 or constantly by a separate lamp, and the latter lit constantly by a lamp 28.
Patent GB-161847-A (GB)
Title: Improvements in tobacco pipes
IPC: A24F1/28
Filed: 1920-05-04
Abstract: 161,847. Mars, W. May 4, 1920. Tobacco pipes. - A bowl or tobacco holder B is screwed in a mouthpiece A formed with a recess C which prevents the passage of nicotine or moisture, and may be filled in with an absorbent ring. A fresh charge can be inserted from the back while the tobacco is alight.
Patent GB-327309-A (GB)
Title: Improvements in and connected with variable transmission gear
IPC: F16H9/16
Filed: 1929-04-20
Abstract: 327,309. Blyth, L. M. April 20, 1929. Variable-speed epicyclic gearing. - In a variable speed gear for transmitting heavy drives, a driving-shaft 1 mounted in bearings 3 has fixed at its end a worm-wheel 11, gearing with worms 10 carried on a U-shaped frame 12, 12 keyed to a driven shaft 2. The worm shafts are rotated by skew-bevel wheels 9, in mesh with a skewbevel 7, rotatably mounted on the shaft 1, and variably driven through pulleys 18, 19 by expanding pulleys 14, 15. The skew-bevels may be replaced by ordinary bevels by having gear wheels on the worm shafts meshing with gear wheels on the shafts of the gear wheels 9. The expanding pulleys 14, 15 are controlled by levers 21a, 22a fulcrumed at 23, their ends engaging oppositely threaded parts of a rotatable shaft 20. According to the Provisional Specification, the wheel 7 may be driven from an auxiliary pilot engine.
Patent GB-1442864-A (GB)
Title: Propellent charge for ammunition
IPC: C06B21/00
Filed: 1974-03-20
Abstract: 1442864 Propellants JOSEF SCHABERGER & CO GmbH 20 March 1974 [20 March 1973] 12379/74 Heading C1D A propellant charge composition for a gun comprises a mixture of two powders of different burning times, the grains of the shorter burning time powder being coated to delay commencement of combustion. The shorter burning time powder may be a nitrocellulose-nitroglycerine ball powder and may be coated with gelatine or with gelatine and gum arabic, and hardened by formaldehyde. In use, the gas pressure in the combustion chamber is maintained at the same level during movement of the projectile.
Patent GB-861955-A (GB)
Title: Improvements in or relating to adjustable speed alternating current electric motor drives
IPC: H02K17/40
Filed: 1959-04-13
Abstract: 861,955. Control of motors. WESTINGHOUSE ELECTRIC CORPORATION. April 13, 1959 [April 15, 1958], No. 12382/59. Class 38 (3). [Also in Group XXXV] An adjustable-speed motor comprises an A.C. induction motor 35 and a D.C. motor 33, both mounted on hollow shaft 34, motor 33 being fed through a rectifier 52 with current at the slip voltage from the A.C. rotor windings and converting this slip power to mechanical power to give a constant horse-power output. The rotor windings 41 of motor 35 are connected by leads 48 passing through shaft 34 to slip-rings 46. The current passes, via brushes 50, to semi-conductor, three-phase, full-wave rectifiers 52, the rectifiers being mounted externally to the motor. The direct current from the rectifier is fed to the armature winding 43 of motor 33 through commutator 44. The field winding 39 of motor 33 is excited by rectified current from full-wave rectifier 58, rheostat 59 giving speed control. Weakening of the D.C. motor field current results in decreased back E.M.F. and allows more current to flow in both rotor windings, producing more torque in both motors. In a modification the rectifier of the slip-voltage is mounted on the hollow shaft and rotates with it.
Patent GB-989708-A (GB)
Title: Improvements in synchronous motor driven clocks
IPC: G04C15/00
Filed: 1964-03-24
Abstract: 989, 708. Clocks. LANDIS & GYR A. G. March 24, 1964 [March 29,1963], No. 12387/64. Heading G3T. A clock mechanism which is driven normally by a synchronous motor 1 and having an auxiliary spring drive 6 which operates on failure of the current and which is normally rendered inactive by a stop, has means for periodically removing the stop during normal running. The motor 1 drives a reduction gearing 2 having a wheel 3 in train to further gearing 4 driving the clock hands 5. The spring motor 6 can drive gearing 4 through connection 8 and is constantly re-wound from wheel 3 through connection 7. A balance 9 controlling the spring motor has a projection 10 engaged by a spring detent 11 in the stop position, this detent being carried by an arm 14 normally held by an armature 15 in stop position and released on current failure. The arm is also operated intermittently by a weight 19 carried to a top dead centre position by a pin 18 on wheel 3 and which drops on each revolution to engage and move the arm 14 thereby releasing the balance for a time.
Patent GB-1341264-A (GB)
Title: Pneumatic vehicle tyre
IPC: B60C9/26
Filed: 1971-04-30
Abstract: 1341264 Pneumatic tyres CONTINENTAL GUMMI-WERKE AG 30 April 1971 [30 April 1970] 12395/71 Heading B7C An inextensible full-width tread reinforcing belt 6 comprises two plies 13, 14 of bias-cut parallel cord fabric each folded on a circumferential line to provide a U-section, the folded ply 14 being wholly embraced by the arms 7, 8 of folded ply 13 with the fold 15 of ply 14 disposed radially between the free edges 10 of the arms 7, 8. In use the tyre is mounted with the fold 9 of the embracing ply 13 either outboard or inboard of the vehicle according to whether the wheel has a positive or negative camber.
Patent GB-1109390-A (GB)
Title: Mechanism for driving a component in translational motion along a closed curve
Inventor: LUNDY CLAUDE
IPC: F16H35/00
Filed: 1967-03-08
Abstract: 1,109,390. Linkwork; seals. COMMISSARIAT A L'ENERGIE ATOMIQUE. 16 March, 1967 [29 March, 1966], No. 12408/67 Headings F2B and F2K [Also in Division Fl] In a mechanism for rotating a piston 6 about the axis of a shaft 18, rotation of the piston 6 about its own axis is prevented by a sleeve 30 having at one end teeth 28 which mesh teeth 26 on a stationary bearing housing 22 and having at the other end teeth 32 meshing teeth 34 on a sleeve 36 secured to piston 6. A crank 16 connects shaft 18 with a shaft portion 14 on which the piston 6 is rotatably mounted. A sleeve 38, integral with sleeve 30, has a spherical zone engaging a knuckle-joint 40 on the shaft 14. A sealing bellows element 24 is provided. In a modification, annular seals 46, Fig. 3, are disposed between the ends of sleeve 30 and sleeves 43, 45 secured to housing 22 and piston 6. The space between tube 30 and bellows element 24 may be filled by a neutral fluid. In a further modification, bellows elements 24a, 24b, Fig. 4, are anchored to the ends of sleeve 30. In the embodiment shown in Fig. 5, the ends of tube 30 are connected by diametrically opposed pins 52 to rings 54, 56 which are mounted by means of diametrically opposed screws 59 on the housing 22 and piston 6. In another modification, a ring 60, Fig. 6, has tongue and groove connections 62 . . . 65, located at right angles to each other, with the housing 22 and piston 6.
Patent GB-642810-A (GB)
Title: Improvements in lap boards
IPC: B65H75/06
Filed: 1948-05-06
Abstract: 642,810. Piece boards. WELLER (LAPPING BOARDS), Ltd., S., and HANSON, S. May 6, 1948, No. 12442. [Class 42 (ii)] In a piece board of the type described in Specification 435,347, the top and bottom layers A<SP>1</SP> of transversely corrugated paper board are flattened at the ends, and each end of the board is reinforced by a wooden lathe or strip B of trapezoidal cross-section. The insert B may be retained in position by a strip of adhesive paper b.
Patent GB-1179624-A (GB)
Title: Apparatus for Sealing Packages comprising Articles Enclosed in a Flexible Material by means of Staples or Clips
Inventor: NIEDECKER HERBERT
IPC: A22C11/12
Filed: 1967-03-16
Abstract: 1,179,624. Sealing by stapling. H. NEIDECKER. 16 March, 1967 [23 April, 1966], No. 12453/67. Heading B8C. A machine for sealing the neck of a package of flexible material by means of staples or clips comprises a member 1 which is pivoted by toggle levers 2, 3 into a closed position wherein it holds the neck of the package in a recess 13, and a clip punch 6 driven in a slideway by toggle levers 7, 8, one of these being formed with a cam track 11 in which a pivot 10 of levers 7, 8 rides, such that (in operation) the gathering member 1 is moved to its closed position before the punch 6 has completed its movement. As described, gathering arm 1 is in its fully closed position when the punch 6 has travelled only 25% of its path. A movable clip guide 15 precedes the punch and closes the aperture 13, the guiding of clip 14 (see Fig. 5), taking place between the guide and side 16 of the punch guide. A yieldable connection (e.g. a friction coupling) between punch 6 and clip guide 15 achieves movement of the latter, Fig. 3 (not shown), longitudinal movement of guide 15 being limited by a slot 26; alternative yieldable connectors are helical springs (28, 29), Fig. 4 (not shown), in opposed tension-compression arrangement; or the arrangement of Fig. 5, where a driving lever 32 pivoted to punch 6 drives clip guide 15 before it until a lateral arm 35 rides over a cam 36. Engagement of abutments 37, 38 will effect return of guide 15 during the return stroke of the punch.
Patent GB-442642-A (GB)
Title: Improvements in or relating to air cooling systems
IPC: F24F5/00
Filed: 1935-04-26
Abstract: 442,642. Cooling air. WENZL, R., 27, Oberriederstrasse, Freiburg, Baden, Germany. April 26, 1935, Nos. 12532 and 12533. Convention dates, April 26, 1934 and July 28, 1934. [Classes 29 and 64 (iii)] Apparatus for cooling the air supply to food storage chambers &c. to about 0‹C. comprises a shaft having cooling cells 1 through the spaces between which the air is drawn by a fan 3 at a velocity of, e.g., 4 metres per sec. The cells consist of metal plates spaced apart by indentations in the plates or by bars 13 welded thereto. The indentations or the bars form sinuous paths in the cells for the cooling medium, e.g. brine or gas. The cells are supported in the shaft between bars 21 of streamline cross-section and are connected to inlet and outlet headers 4, 5 respectively for the brine. Brine is removed from the cells by water sprayed from a pipe 16.
Patent GB-512315-A (GB)
Title: Improvements relating to the temperature-compensation of ferraris meters
IPC: G01R11/185
Filed: 1939-04-26
Abstract: 512,315. Compensating meters for temperature errors. LANDIS & GYR AKT.-GES. April 26, 1939, No. 12539. Convention date, July 29, 1938. [Class 37] In a Ferraris meter a shunt path of the driving system consists at least partly of a thermally sensitive alloy having a positive temperature coefficient. As shown a plate 3 of such alloy is arranged in the air gap between the shunt limb 4 and the return yoke 5 of the pressure magnet core 1. The plate maybe secured by clamping or otherwise. The alloy may alternatively replace some of the plates of the laminated shunt limb. On a rise of temperature the permeability of the alloy increases and permits more flux to pass through the shunt path, thus preventing increase of torque and reduction of phase angle between the two driving fluxes. The thermally sensitive alloy may be arranged in a shunt path of the current core 2.
Patent GB-949616-A (GB)
Title: Improvements in or relating to the casting of metals
IPC: B22D11/18
Filed: 1960-04-08
Abstract: 949,616. Ladle and tundish nozzles. BRITISH IRON & STEEL RESEARCH ASSOCIATION. April 8, 1960 [April 8, 1959], No. 12571/60. Heading F4B. [Also in Division H5] A casting ladle or tundish includes at least two arc electrodes positioned outside the molten metal chamber but in the vicinity of the delivery outlet, to heat the latter. A tundish 2 includes a chamber formed by a refractory lining 6, further linings 4 and 5 within a metal casing 3, a stopper rod 9, and a metering nozzle unit 7-of zirconium oxide, zirconium silicate, magnesia, or alumina-formed with an annular cavity 7c in which a graphite ring electrode 8 is mounted, the cavity being closed by lining 5. Two or more arc electrodes extend through symmetrically arranged passages 11a and, when hot, substantially fill these passages to prevent the ingress of air. A modified metering nozzle unit (Fig. 3, not shown) is formed in two parts, the ring electrodes 8 extending behind the outlet end of the nozzle, which is detachable.
Patent GB-1357202-A (GB)
Title: Filter candles
IPC: B01D29/15
Filed: 1971-05-01
Abstract: 1357202 Filter element JESSEL CO Ltd 18 April 1972 [1 May 1971] 12607/71 Heading B1D A filter element adapted to support an outer layer of filter aid in use comprises a perforate tube 2 carrying a layer of wire mesh secured thereto by wires 10, wrapped round the tube and secured to end fittings thereof, the wires being triangular or rectangular in cross-section. In Fig. 6 triangular wires have one face abutting the wire mesh 11 so that reverse flow of water or carbon dioxide easily removes the filter cake. In Fig. 4 square-sectioned wires have one corner abutting the wire mesh, which is stated to facilitate cleaning by creating channels between wires and mesh round which the cleaning fluid flows quickly to break up the cake. Fig. 5 (not shown) illustrates triangular wires corner-on to the mesh. Figs. 1 to 3 (not shown) illustrate other constructional details of the element, which are fully detailed in Specification 1,357,201.
Patent GB-545957-A (GB)
Title: Improvements in apparatus for automatically switching on and off gasifying burners for heating car engines and the like
IPC: F02N19/10
Filed: 1941-09-30
Abstract: 545,957. Vapour burners. LINDAHL, H. W. Sept. 30, 1941, No. 12619. [Classes 75 (i) and 75 (iii)]  An annular water vessel formed by an outer shell 1 and an inner corrugated wall 2 and arranged in the cooling water system of an internal combustion engine is heated by a vapour burner 11 which is extinguished when the engine is running and which is ignited when the engine is shut down by the closure of a thermostatic contact device 14 arranged near the burner. The water vessel has perforated top and bottom covers 9, 7 fitted with safety nets 10, 8. The burner consists of a nozzle 16 discharging into a spherical burner head 15 having perforations in its upper portion for the emission of the combustion gases and in its lower portion for the adimission of air. The burner head contains an igniting filament 24 and a curved metal plate 20 from which hang steel wires 23. The fuel supply to the nozzle 16 is controlled by a valve 53 arranged in a tube 54 connected by a pipe 12 to a channelled plug 17 secured to the cover 7 below the nozzle 16. The tube 54 is surrounded by a casing 46 in which are arranged two coils 44, 47 and a normally closed switch 43 carrying an armature 60. The switch 43 is in the lead connecting a bimetallic element 40 of the contact device 14 to one battery terminal. When the engine is running the coil 47 is energized thereby drawing the valve 53 to shut off the fuel supply to the nozzle 16 and lifting the armature 60 to open the switch 43. When the engine is stopped the switch 43 closes and when the element 40 falls to a predetermined temperature it engages a spring 39 and completes the circuit to a heating coil 30 surrounding the plug 17 and to the filament 24. The element 40 as it becomes heated bends to engage a spring contact 41 and thereby completes a battery circuit through the coil 44 and raises the valve 53 to a position in which it is gripped by a spring clamp 56. Fuel then passes through the heated plug 17 to the nozzle 16 and the vapour produced is ignited by the filament 24. The element 40 then becomes further heated and a bow element upon it bends it out of contact with the spring 39 to break the circuit to the coils 30, 44 and filament 24. The spring 41 is also bent by a bow element upon it out of contact with the element 40. The valve 53 remains open until the coil 47 is energized by the starting of the engine when the temperature of the spring 40 falls. As the element 40 passes the unstable position of its bow element it also returns the spring 41 to its initial position by means of a hook 42. The nozzle 16 is fitted with a cleaning needle 35 which is reciprocated quickly on the extinction or ignition of the burner by the change of curvature of a bimetallic disc 36.
Patent GB-611276-A (GB)
Title: Improvements relating to buckles
IPC: A44B11/10
Filed: 1946-04-26
Abstract: 611,276. Buckles. WALKER, Ltd., T., WALKER, T., and WOOD, H. H. April 26, 1946, No. 12620. [Class 43] A box-type buckle' comprises a front plate 1 provided with a sliding cross-bar A which is channel-shaped having one side wall 4 opposed to, but spaced from, the front plate 1; both side walls 4, 6 are extended to form pairs of spaced guide parts 9, 7 respectively which embrace inturned guide flanges 3 on tapering side walls 2 of the front plate 1. The extensions 9 are cranked towards the flanges 3, and the extensions 7 are roughened to provide finger holds 8. The inner wall 4 of the cross-bar- A may have projections 12 to ensure a good grip on the belt. Stop lugs 16 on the flanges 3 prevent the cross-bar from being detached. The free end of the belt is passed behind the front plate 1 and beneath the cross-bar A which is then moved towards the shallower ends of the side walls 2 to grip the belt by means of the channel wall 4. _____
Patent GB-690940-A (GB)
Title: Improvements in or relating to means for raising and lowering the ramps of cattle floats and horseboxes
IPC: B60P1/43
Filed: 1950-05-19
Abstract: 690,940. Door-operating appliances. FOULGER, W. H. May 11, 1951 [May 19, 1950], No. 12623/50. Class 65 (i) The door 1 of a cattle float or horsesbox, hinged at 1a about its lower edge to form a ramp, is counterbalanced by spring means provided at each side thereof, the means comprising a lower bracket 2 secured to the side edge of the door adjacent the hinged edge and adapted to have adjustably secured thereto, at a predetermined height above the hinge axis, means for receiving the lower end of a tension spring 12, the upper end of the latter being attached to an upper bracket 16 fitted to the adjacent upright 17 of the frame. As shown, the brackets are of angle section, and the lower end of the spring is engaged by the hooked end of a bolt 10 secured in a block 8 which may be pivotally mounted in any one of a series of holes formed in the free flange 4 of the bracket 2. In a modification the pivot of the block passes through a slot in the flange 4 and is held rotatably in a collar adapted to be moved vertically by screw means mounted on the bracket 2.
Patent GB-742860-A (GB)
Title: Improvements relating to hatch cover stowage on cargo ships
IPC: B63B19/18
Filed: 1952-05-20
Abstract: 742,860. Hatch cover stowage. GEDDES, R. C. Aug. 17, 1953 [May 20, 1952], No. 12702/52. Class 113. In a cargo ship having the bridge structure arranged amidships and a set of holds each adapted to be closed by a hatch cover, a stowage space arranged athwartship and completely clear of the deck space for reception of at least one of the hatch covers is provided under the bridge proper. In the embodiment of Fig. 1 the ship has three holds, the hatch cover sections 4 of the forward hold 1 being adapted to be stowed in the forecastle 8 and the sections 4 of the midships hold 2 and of the afterhold (not shown) being stowed under the bridge 7. Horizontal rails 18 are located in the stowage spaces for engagement by wheels 6 on both sides of each hatch cover section 4, at least one winch 13 in the stowage space being adapted to raise each section for stowage in a vertical plane. The ends of the rails 18 adjacent the respective hold slope downwardly to serve as ramps for engagement by the wheels 6.
Patent GB-654446-A (GB)
Title: Improvements in coating compositions
IPC: C08F251/02
Filed: 1948-05-10
Abstract: A sprayable high-solids coating composition comprises 8-45 per cent of 10-40 centipoise cellulose nitrate, 42-89 per cent of polymerizable methacrylate esters of one or more glycols and 0.5 to 25 per cent of a plasticizer, all based on total solids present.  The preferred compositions comprise approximately 13-38 per cent cellulose nitrate of viscosity as above, 48-79 per cent polymerizable methacrylate ester and 5-20 per cent of plasticizer.  The methacrylate esters used may be mixtures of preformed glycol esters, or glycol esters derived from the methacrylic acid esterification of a glycol or mixtures of glycols having the formula HO(CH2-CH2-O)nH wherein n is an integer (usually 1-20) and the molecular weight of the glycol or the weighted average molecular weight of the mixture of glycols (as defined in the Specification) is in the range 100 to 300, preferably 200\sB15.  Within the limitation of compatibility with the cellulose nitrate and methacrylate any conventional lacquer plasticizer may be used, but soft, oil-modified alkyd resins of long oil length are preferred.  The solvent is preferred to have a faster evaporation rate than n-butyl acetate, but may be any conventional solvent; aromatic hydrocarbons are preferred to aliphatic hydrocarbons.  Accelerators such as benzoyl peroxide, lauroyl peroxide, tertiary butyl perbenzoate, a ,a 1-azo-bis-a 1-g -dimethyl valeronitrile, a ,a 1-azo-diiso-butyronitrile or benzoin may be incorporated in the final composition to increase the rate of polymerization of the methacrylate monomer.  Inorganic salts of cobalt may also be used for the same purpose.  Pigments may be incorporated in the compositions if desired.  In an example a lacquer is made from 15.7 parts by weight 18-23 centipoise cellulose nitrate, 9.7 parts denatured ethyl alcohol, 24.8 parts of a mixture of dimethacrylate esters of polyethylene glycol 200, 7.5 parts of a 60 per cent solution of a castor oil modified glyceryl phthalate of 55 per cent oil length in 90 parts high solvency petroleum lacquer diluent and 10 parts butyl alcohol, 0.1 parts benzoyl peroxide, 0.1 parts cobalt nitrate hexahydrate, and 42.1 parts methyl ethyl ketone. This composition contains 45 per cent solids as follows: cellulose nitrate 35 per cent, methacrylate monomer 55 per cent and alkyd resin 10 per cent. Specifications 630,632 and 631,844 are referred to.
Patent GB-1412692-A (GB)
Title: Butterfly valve
IPC: F16K1/22
Filed: 1973-03-16
Abstract: 1412692 Valves ESCHER WYSS Ltd 16 March 1973 [16 March 1972] 12833/73 Heading F2V In a butterfly valve the flap 4 is pivoted in bearings about an edge 5 of a member 3 extending diametrically across a duct 7 by a servomotor 8 which is secured between the parts of a twin support 6 extending between the member 3 and the duct wall. Spaced ribs 12 reinforce the flap. In other embodiments the servomotor is secured below the member 3 in the direction of flow or is secured outside the duct and the flap pivots about a cylindrical stainless steel rod secured to the member and about which stirrups secured to the flap extend, a bronze strip extending between the flap and the rod.