baber/WOPTO huggingface dataset:
Patent GB-995686-A (GB)
Title: Improvements in agricultural and horticultural implements
IPC: A01B49/02
Filed: 1963-06-10
Abstract: 995,686. Agricultural implements. TROJAN Ltd., and W. G. EVANS. May 25, 1964 [June 10, 1963], No. 23097/63. Heading A1B. A tractor 1 is provided with a plough 4 mounted in front which ploughs a furrow to one side of the tractor, which furrow is worked on the next run by a cultivator 11 mounted at the back of the tractor and provided with a separate prime mover 10. The cultivator rotates in a direction such that it aids the propulsion of the tractor.
Patent GB-243126-A (GB)
Title: Improvements in flexible tubes
IPC: B21C37/12
Filed: 1924-10-01
Abstract: 243,126. Haddan, A. J. H., (Titeflex Metal Hose Co.). Oct. 1, 1924. Tubes.-A flexible metal tube formed from a longitudinally grooved strip of metal by coiling and interlocking the edges by rotating a mandrel 5 in a helical die, as described in Specifioation 101,418. has the immovable locked helical joint formed with a packing which is introduced during the manufacture in a liquid state and which subsequently hardens. The die is formed with grooves shaped to form a right-angled part 7 on the edge 4, which is then enclosed by the edge 2 of the next portion, and the engaged portions then turned over to form a lock seam, the flexibility is provided by the sides of the groove. The packing may be formed by a thread 8 which passes through a tank containing the liquid a wiper 14, 16 being provided to remove surplus liquid before the thread passes into the machine which forms the helical tube. A suitable solidifying substance may be formed of Litharge 1 part by volume. Sodium silicate 2 parts by volume. Reference has been directed by the Comptroller to Specification 23375/92 [Class 99, Pipes &c.].
Patent GB-321656-A (GB)
Title: Process for the production of balls for gunnery for practice purposes
IPC: F42B8/02
Filed: 1928-08-13
Abstract: 321,656. Raczkowski, A. Aug, 13, 1928. Wood, treating with liquids; waterproofing; proofing processes.-Gunnery practice bullets or balls are made from wood by turning to a slightly larger size than that required, heating in a vessel in paraffin to about 140‹ C. until complete expulsion of vapour, cooling to 60‹ C. and then finishing to the correct size and polishing. The finished balls again may be heated in a bath of coloured paraffin and then finished by a further heating in paraffin to a temperature of 300‹ C.
Patent GB-1019862-A (GB)
Title: Technique for making contacts and p-n junctions
IPC: H01L23/482
Filed: 1964-06-04
Abstract: 1,019,862. Removing metal by electron beam. WESTINGHOUSE ELECTRIC CORPORATION. June 4, 1964 [June 25, 1963], No. 23273/64. Heading B3V. [Also in Division H1] A metal layer applied to a semi-conductor body is divided using an electron beam. The metal layer is applied by evaporation or plating and is locally melted by an electron beam so that the metal pulls away exposing the semiconductor body (i.e. the metal " balls up "). The metal may be indium or aluminium or a carrier metal such as gold or tin containing traces of indium or aluminium. The electron beam may be pulsed or continuous and may scan the semi-conductor body or may be held stationary and the body moved relative to the beam.
Patent GB-1025255-A (GB)
Title: Toy sound device
IPC: G10K1/067
Filed: 1964-06-04
Abstract: 1,025,255. Noise producing toy. MATTEL Inc. June 4, 1964 [Jan. 24, 1964], No. 23292/64. Heading A6S. [Also in Division G5] A sound producing toy imitating the sound of a motor vehicle comprises a turntable with radial obstructions which strike a transfer member coupled to a diaphragm. In the embodiments described the turntable 20 is driven by an electric motor 25 under the control of a variable resistance 26 controlling the speed of rotation. The turntable is provided with radial grooves 23 which strike the stylus 41 of an L shaped transfer member 31 which is biased towards the turntable by a spring 38 acting on the pivotal end of said member 31. The other end of said member is connected to a spring loaded piston 16 on a conical diaphragm 11. The member 31 may be moved across the turntable, to produce a different characteristic sound, by an arm 52. Another embodiment, Fig. 4, obtains control of the stylus position by a swinging action about a pivot pin 133.
Patent GB-316938-A (GB)
Title: Process for transporting and using liquefied gases of a low boiling point in closed pressure vessels
IPC: F17C7/02
Filed: 1929-07-29
Abstract: 316,938. Ges. f³r Industriegasverwertung. Aug. 6, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Storing under pressure.-Liquefied gases are transported in insulated closed vessels.
Patent GB-1472879-A (GB)
Title: Discharge lamps
IPC: H01J9/32
Filed: 1974-05-24
Abstract: 1472879 Glass to metal seals; reforming glassware GENERAL ELECTRIC CO 24 May 1974 [28 June 1973] 23350/74 Heading C1M In the manufacture of an electric arc tube 1, a tube 11 (of quartz or high silica material) is placed round in-lead conductor 4 and the end heated as by burners 18, 19 to plasticity while "an inert" gas such as nitrogen is flowed through the tube, the tube 11 then being compressed about the lead 4 by pinching jaws 25, 26 which include mould sections 33, 34, the pressure of the inert gas being used to expand the end of the tube 11 into conformity with the mould sections 33, 34 so that the end chamber of the tube is of constant size and shape. The other end of the tube is then similarly shaped round the conductor lead 5. The inert gas is preferably fed by a tube 15 through the exhaust side tube 14, the open top of the tube 11 being closed as by a plug 16. Tube 11 is supported by clamping jaws 12, 13 just over a spindle 17 into which the lead 4 or 5 is positioned. The jaws 25, 26 are moved into clamping position and the burners 18, 19 moved out of position by downward movement of rods 27, 28 through links 31, 32 and T-shaped levers 29, 30. Initial movement causes the jaws 25, 26 on the ends of levers 29, 30 to pivot upwards into position level with the end of tube 11 while the burners 18, 19 are pivoted upwardly out of the way by cams 39, 40 turning rods 35, 36 about pivots 37, 38. The leads 4, 5 are connected to tungsten electrodes by this molybdenum foils 6 and an auxiliary starting electrode 9 is included in the pinch seals 7, 8.
Patent GB-355920-A (GB)
Title: Process for increasing the resistance to corrosion of objects made from alloys of magnesium with manganese
IPC: C22C23/00
Filed: 1930-08-05
Abstract: The resistance to corrosion of objects made from binary magnesium manganese alloys containing from about 0,5 to 2,5 per cent of manganese is increased by subjecting the objects to a heat treatment at above a minimum temperature which rises from about 400 DEG  C. for an alloy with 0,5 per cent manganese to about 480 DEG  C. for an alloy with 2,5 per cent manganese.  The heat treatment may be combined with the hot working of the objects by working at a temperature above the minimum heat treatment temperature but if the working is carried out at a temperature below the minimum a subsequent separate heat treatment is necessary.  The heat treatment may be followed by quenching.  A cast block of magnesium manganese alloy, manganese content 1,4 per cent, was rolled at 350 DEG  C. into sheets and the sheets then annealed for 48 hours at about 500 DEG  C. and allowed to cool in air.
Patent GB-1098344-A (GB)
Title: Steering column switch for automotive vehicles
IPC: B60Q1/42
Filed: 1965-06-02
Abstract: 1,098,344. Retractive switches. SWFSPEZIALFABRIK FUER AUTOZUBEHOER GUSTAV RAU G.m.b.H. June 2, 1965 [June 3, 1964], No. 23432/65. Heading H2B. A switch operating lever 10 is received in a resilient bearing member 3 secured to a rotatable switch port 2 arranged on a bearing extension 1 of a vehicle steering column such that the lever is tiltable vertically, e.g. to close earthing contacts 16, 17, and also pivotable to rotate the switch port 2, e.g. for direction indication purposes. Switch port 2 has a recess 5, in which is inserted a fixing member 4 (see also Fig. 2, not shown), to secure resilient member 3, and a recess 14 in which is inserted a sleeve-like portion 9, (see also Figs. 3, 4, not shown), connected to fixing member 4 by a we b-like connecting member 8 and receiving lever 10 therein. Alternative fixings of resilient members 3 are described (Figs. 6, 7 and 8, not shown).
Patent GB-700890-A (GB)
Title: Electric signal translating circuits
IPC: H03F1/07
Filed: 1951-10-09
Abstract: 700,890. Valve and semi-conductor amplifying circuits ; modulating systems. WESTERN ELECTRIC CO., Inc. Oct. 9, 1951 [Oct. 27, 1950], No. 23466/51. Classes 40 (5) and 40 (6) In a high efficiency amplifier employing two amplifying paths in parallel feeding a common load in which an amplifying path operates at all signal levels and the other only when signals exceed a predetermined level, the operation of the second amplifying path modifies the effective terminating impedance presented to the first. The signals applied to the two paths differ in phase by n#(n=0, 1, 2..), one path being arranged to operate under class B conditions and the other under class C and one path may include a transistor. A modulating signal may be fed to both paths to produce an amplitude modulated wave, and due to the absence of tuned elements the amplifier may also be arranged to operate over a wide band and used in a television camera. The circuit operates in the manner described in Specification 471,423, a modulated carrier being applied from generator 10, Fig. 3, and the transistor 5 biased to operate under class B condition while the valve 7 operates under class C. With a low-level input 10 the transistor 5 feeds into a load 8 of half the optimum impedance and saturates at the level of the unmodulated carrier. Further increase in the input causes valve C to operate and feed power into the load 8, and since it shunts the load with a negative resistance, the effective load presented to transistor 5 is raised. At full modulation the load rises to the optimum so that both the transistor and valve work into their optimum loads. When the circuit operates over a narrow frequency band a series resonant circuit may be connected in series with the transistor, Fig. 4 (not shown), and a parallel circuit in shunt with the valve. The circuit may employ push-pull connections for both the valve and transistor paths, Fig. 5A (not shown). Since the power-handling capacity of a transistor is limited, the transistor 5 is preferably included in the class C path, Fig. 6, and the valve 7 in the class B path, the load 9 being inserted in series between the outputs of the two paths, and circuits 18, 19 and 20, 21 made resonant at the operating frequency. The transistor path may be operated in push-pull, Fig. 7 (not shown). The load may be arranged in various ways between the two amplifying paths, Figs. 8 to 11 (not shown). Modulation.-A carrier source 48 feeds transistor 5 and valve 7, Fig. 12, feeding the common load 9. A modulating source 52 supplies a signal over transformers 50, 51 to the valve and transistor respectively. The source is preferably given an internal impedance intermediate between the high input impedance of the valve and the low impedance of the transistor.
Patent GB-929790-A (GB)
Title: Improvements in or relating to centrifugal pumps
Inventor: LUNG KENNETH RAYMOND
IPC: F04D29/62
Filed: 1960-07-05
Abstract: 929,790. Centrifugal pumps. TAIT MANUFACTURING CO. July 5, 1960, No. 23484/60. Class 110 (1). A centrifugal pump comprises an impeller having a hub forming a bearing surface rotatable within a bearing, at least the hub being formed from a synthetic resin having the property of swelling in water by a predetermined amount, the outer diameter of the bearing surface being sufficiently less than the inner diameter of the bearing when the pump is first placed in service that a substantial running clearance is provided for the passage of sand or other abrasive material present in the water, and the clearance becoming reduced, after the swelling has taken place, to a valve providing proper bearing support. In the case of a pump put into service in a new well, the high concentration of abrasive material usually encountered for the first few hours or days of operation in a new well can pass through the initial substantial bearing clearances without causing undue wear. The impellers 21, Fig. 6, of a multistage submersible pump are made of a nylon resin which swells in water by 1 to 3% of its initial dimensions, the resin desirably containing molybdenum disulphide to control the swelling and act as a lubricant. Each impeller may be cast in two pieces, one including the hub 30 and back shroud 33 and the other including the front shroud 35 and vanes 36, the pieces being secured together by means of integral rivets formed on each vane and passing through holes in the back shroud. Each impeller 21, together with a diffuser 22, operates within a casing 23, the thrust on the impeller normally being taken by engagement of a boss 40 with a bearing surface 45 on the casing 23. In the event of reversal of the thrust, the thrust is instead taken by a bearing surface 53 on a bush 51, which may be of stainless steel, in the centre of the diffuser 22. The bush 51 forms a radial bearing for hub sleeve 34, the clearance between the sleeve and bush being initially large, for the reason stated above, before the sleeve has become swollen by the water. Each impeller 21 is splined to the pump shaft 20 with freedom to float axially, and the shaft has no bearings other than the bushes 51. Each diffuser 22 is cast from a plastics material and comprises a disc 50 formed with a cylindrical rim 55. The liquid discharged by each impeller 21 is guided axially by generally helical fins 56, Fig. 7, projecting outwardly from the rim 55 of the adjacent diffuser 22, each fin 56 ending in a shoulder 57, Figs. 7 and 8, which engages within a notch 47 in the surrounding casing 23. The liquid is then guided radially inwardly towards the next impeller by means of diffuser vanes 61, formed on the back of the diffuser 22. The outer portion 62 of each vane 61 is cylindrically curved and merges with the rim 55.
Patent GB-406693-A (GB)
Title: Improvements in or relating to containers, jars, or pots for paste, cream and other fluids
IPC: B27G11/02
Filed: 1932-08-23
Abstract: 406,693. Piston apparatus for discharging receptacles. MARR, P. G., Rydens End, Rydens Avenue, Walton-on- Thames. Aug. 23, 1932, No. 23531. [Class 102 (ii).] In a container for paste &c. of the type in which a piston 25, Fig. 1, for extruding the contents is accessible from the bottom of the container, a brush, or spatula 32 is carried by the cover 34. The brush &c. may be secured to the cover by a screw engagement, or by a clip or, as shown, may be riveted to the cover and steadied by a wall 35 in the cover. The piston may be packed by a tight-fitting resilient washer 26. In a modification, Fig. 2, a perforated diaphragm 38 is arranged below the brush. The packing washer 42 is hollowed on one or both sides and the periphery of the washer may be expanded by a spring ring. The middle of the washer can be lifted by means of a U-shaped member 51, which extends through the piston. Release of the member 51 causes collapse of the washer and reduction of pressure in the container. A leaf spring 43 prevents return of the piston. In modifications, the member 51 is replaced by a plunger secured to the washer 42 and extending through the piston 25. Specifications 370,954 and 375,421, [both in Group XVII], are referred to.
Patent GB-236204-A (GB)
IPC: G03C7/14
Abstract: 236,204. Fournier, P. June 27, 1924, [Convention date]. Colour photography.- In order to obtain more clearly defined colour zones in and from films having a lenticular surface and exposed through a symmetrical lens fitted with colour screens, Figs. 1 or 2, narrow opaque hands B, Figs. 7 or 8, corresponding in position -:o the joins of the adjacent colour areas of the screen are associated. with the colour filter in taking the film. These bands may be on an independent diaphragm. The same diaphragm, properly positioned, is used in reproducing the film without the colour screen. The lens mav have an aperture of F/2 and the bands should not exceed 3 mm. Specification 10611/09 is referred to.
Patent GB-1357495-A (GB)
Title: Processing gaseous or liquid hydrocarbon raw materials and tube furnace for carrying out this process
IPC: C07C4/04
Filed: 1972-05-19
Abstract: 1357495 Hydrocarbon pyrolysis VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY I PROEKTNY INSTITUT NEFTEPERERABATYVAJUSCHEI I NEFTEKHMICHESKOI PROMYSHLENNOSTI 19 May 1972 23673/72 Heading C5E A gaseous or liquid hydrocarbon feedstock is cracked by passing the pre-heated feed through a tube in a pyrolysis zone and feeding a molten material into the tube to form a film on the internal wall of the tube thereby preventing contact of the feed with the tube wall and consequent coke formation, the film being moved along the tube by passage of the feedstock. The molten material may be a metal, an oxide or a salt and may be introduced at further points along the tube to replenish the film. The molten material may contain the solid oxides of Si, Al or Ni dispersed therein to increase its viscosity. An apparatus for carrying out the process comprises a furnace having a convectively heated preheating zone, a radiantly heated pyrolysis and tube extending from the one to the other containing an annularly disposed nozzle to introduce molten material. Preferably the tube is in coil form with helical baffle plates at the bends. Examples describe the pyrolysis of butane, in the presence of steam, to ethylene and propylene with molten LiCl forming the film, and the pyrolysis, again in the presence of steam, of a 30-160‹C. gasoline fraction to give mainly C 2 -C 4  olefins using molten lead which contains Al 2 O 3 , promoted with potassium vanadate, SiO 2  and NiO.
Patent GB-994879-A (GB)
Title: Improvements in or relating to scintillation detectors
IPC: G01T1/20
Filed: 1961-06-30
Abstract: In a g -ray scintillation detector comprising a transparent cylindrical scintillation crystal with one end of the crystal mounted on a photo-multiplier tube, the light reflectivity of the curved surface of the crystal or of a cylindrical reflecting screen surrounding the crystal is varied longitudinally by varying the smoothness of the crystal surface or the reflectivity of the reflecting screen or by coating the crystal surface with a diffuse reflecting material so that when a scintillation occurs in the crystal the amplitude of the resultant light pulse as received at the photo-cathode of the photo-multiplier is substantially independent of the position of the scintillation in the crystal. The variation in reflectivity may be effected continuously or in discrete steps.  The coating and the reflecting screen may comprise aluminium oxide or magnesium oxide or the reflecting screen may comprise a combination of aluminium oxide and aluminium foil reflectors or a combination of magnesium oxide and aluminium foil reflectors.  The scintillation crystal may comprise a plurality of elements optically coupled end to end, Fig. 3 (not shown), and as described the reflectivity is controlled by polishing the lateral surface of the crystal(s) adjacent the photo-multiplier and roughening the remaining external surfaces of the crystal.
Patent GB-599168-A (GB)
Title: Folding chair and table
IPC: A47B3/10
Filed: 1945-09-14
Abstract: 599,168. Collapsable seats and tables. DINENAGE, A. D. Sept. 14, 1945, Nos. 23726 and 30254. [Classes 52(ii) and 52 (iii)] A seat and a table or desk are each provided with legs 2 foldable within a rim 6 depending from the seat or table surface 1 and the two parts can be connected to form a box-like assemblage for transport by means such as lift-off butt hinges 23 and can be fitted with a carrying handle 24. The seat may have a central aperture 12 and a hinged back-rest 8 with stays 10 or other supporting means. The legs of the table portion are relatively longer and in the case of a desk an internal tray can be fitted and also a hinged lid adjustable in slope. Couplings may be provided for connecting two or more tables or seats end to end.
Patent GB-225649-A (GB)
Title: Improvements in garment supporting shoulder strap
IPC: A41F15/00
Filed: 1923-09-24
Abstract: 225,649. Ballou, F. A., Morehouse, E., and Ballou, F. A. Sept. 24, 1923. Straps and bands.-A shoulder strap for supporting garments, such as evening dresses, has an elongated horizontallydisposed attaching member, such as a bar pin, at each end, and the strap has end portions spaced apart and secured to the member near its opposite ends to prevent tipping of the attaching member. The strap may be of ribbon, a string of beads or pearls, or a chain of one of the precious metals. Fig. 4 shows a length-adjusting device wherein a member 19 is apertured along its length and secured to one end of the main chain, an intermediate portion of the chain being threaded in and out of the apertures. In a modification, a pair of rings 21, 23, Fig. 6, are provided for adjustment, the ring 23 having a bar across its centre.
Patent GB-691324-A (GB)
Title: Improvements in or relating to forced flow, once through, tubulous boiler units
IPC: F22B29/06
Filed: 1950-09-29
Abstract: 691,324. Forced-flow steam &c boilers. BABCOCK & WILCOX, Ltd. Sept. 29, 1950 [May 9, 1949], No. 23867/50. Class 123(ii) A forced-flow steam &c. boiler comprises a vaporising section 1 discharging into a steam-andwater separator 2 from which the separated steam is directed. through a superheater 3 to a contact heatexchanger 4 into which the separated water is sprayed at 6, the resultant steam then being directed through a second superheater 7. Alternatively water from the separator 2 is collected in the heat-exchanger and steam from the superheater 3 in sprayed below the surface thereof. Preferably the separator 2 and heatexchanger 4 are superimposed as a unit, Fig. 3, divided by a plate 9 mounting a tube 5 with spray nozzle 6, the separator 2 having tangential inlets 10 for the steam-water mixture from the section 1 and a steam outlet pipe 11 leading to the superheater 3, and the exchanger 4 being provided at its upper end with a steam inlet 12 and at its lower end, not shown, with a steam outlet.
Patent GB-1476771-A (GB)
Title: Excavator
IPC: E21D9/10
Filed: 1974-05-29
Abstract: 1476771 Tunnelling machines KOMATSU SEISAKUSHO KK 29 May 1974 23901/74 Heading E1F An excavator comprises a mobile chassis, a universally swingable boom 5 mounted on the chassis, a bracket 9 mounted on the free end of the boom, a cutter tool 6 pivotally mounted on the bracket for attacking the face and the roof of a tunnel being dug out by the excavator, and an impact motor 11 mounted on the bracket so as to apply an intermittent impact force to the cutter. The bracket, which is shown rigidly secured to the end of the boom, may be pivotally mounted on the boom and may be swung relative to the boom by a piston-cylinder unit acting between the bracket and the boom. Material excavated by the tool may be gathered up from the floor of the tunnel by gathering means mounted on the chassis and loaded onto conveying means mounted on the chassis to extend to the rear of the chassis.