baber/WOPTO huggingface dataset:
Patent GB-383968-A (GB)
Title: Improved means for disintegrating and regulating the gas supply to atmospheric gas burners
IPC: F23D14/48
Filed: 1931-06-02
Abstract: 383,968. Valve components. HARPER & CO., Ltd., J. and RETALLACK, J. F., Albion Works, Willenhall, Staffordshire. June 2, 1931, No. 16054. Addition to 299,559, [Class 75 (i), Burners &c.]. [Class 135.] Closure members, interconnected.-In a gas injector as described in the parent Specification, the outlet holes f in the cap F are controlled by a hit-and-miss rotary disc regulator h, pressed against the cap by a spring J and having a stem H of non-circular section engaging a correspondingly-shaped hole in the end b<1> of the member B. The regulator h comprises two or more radial plates, each of which is adapted to cover completely a radial group of holes f. The member B is adjusted longitudinally to effect the passage of the gas without noise and is then given a partial turn to adjust the regulator h for the correct flow of gas.
Patent GB-1404896-A (GB)
Title: Methods of manufacturing commutators for rotating electrical  machines
IPC: H01R43/06
Filed: 1973-04-04
Abstract: 1404896 Making commutators ASSOCIATED ELECTRICAL INDUSTRIES Ltd 3 April 1974 [4 April 1973] 16087/73 Heading B3A [Also in Division C7] A method of making commutators for rotating electrical machines comprises disposing a plurality of insulating members 2 in spaced relation to form gaps, defining regions to be occupied by electrical conductors 1 and filling the gaps with electrically conductive material by an electrical deposition process. One of the flat sides of each insulating member 2 is cleaned and covered with a conductive dust, e.g. of silver or graphite. The covering is heated to form a conductive film on the member 2. The members are placed in a non-conductive frame at the required spacing and the gaps between them are bounded on one side by a coated face and on the other by an uncoated face. Each coated face is provided with an electrical connection and the assembly is immersed in an electrolyte containing an electrode of, e.g. copper or copper-silver alloy. Deposited metal builds up on each coated face and when the gaps are filled, the assembly is removed from the bath, rinsed and neutralized in known manner. The frame used during plating is replaced by a permanent one. In an alternative method, uncoated members (2), Fig. 2 (not shown), are again arranged in a non- conductive frame and the assembly is mounted on a conductive tubular mandrel (3). An electrical connection is made to the mandrel (3). An electrical connection is made to the mandrel and the assembly is immersed in a plating bath. Deposited metal builds up on the members (2) radially outwardly during plating and when this is completed the frame is replaced and the mandrel removed. Instead of the mandrel, a conductive tube (5) which surrounds the assembly may be used, or an electrode may be provided at one or both axial ends of the assembly. The commutator surfaces are machined to final dimensions and the ends of the rotor windings are connected to the conductors 1 by welding or brazing. Alternatively they may be located in the gaps between the members 2 prior to deposition, so that they become embedded in the conductors or metallic strips may be placed in the gaps for subsequent connection to the windings.
Patent GB-833725-A (GB)
Title: Improvements in and relating to trolley-buses
IPC: B60L9/00
Filed: 1957-05-21
Abstract: 833,725. Electrically propelled vehicles. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. May 21, 1957 [May 30, 1956], No. 16176/57. Classes 79(2), 79(3) and 79(5) An oil pump 8 for the power-assisted steering-system 2 of a trolley bus may be driven either by an electric motor 5 separate from the traction motor 4 or by a dynamo 6 acting as a motor. The motor 5 is connected to the trolley arms 9 and normally drives the dynamo 6 to charge the battery 10. If the mains current is cut off, the dynamo draws current from the battery to drive the pump 8. A free wheel clutch 7 prevents the motor 5 from being driven. Alternatively, the motor 5 may be fitted with a device, such as a no-load relay, to prevent return of current to the mains. A switch 11 is opened whenever the motor 4 is switched off.
Patent GB-1180476-A (GB)
Title: Bolster Construction for Railway Tank Car
IPC: B61D5/06
Filed: 1967-04-10
Abstract: 1,180,476. Tank wagons. UNION TANK CAR CO. 10 April, 1967 [4 May, 1966], No. 16234/67. Heading B7L. The body 11, Fig. 1, of a tank car 10 is supported at each end by bolster assemblies 15 in turn supported on trucks 12, each bolster assembly 15 comprising spaced arcuate saddle plates 30 connected by web plates 60 to base plates 55, carrying wear plates 66 co-operating with bearing plates 67 on the trucks 12, the outer end of each web plate 60 being secured to a pipe length 50 secured at its ends to the associated plates 30, 55. Stiffening plates 70 are welded to each side of the web 60 and to the plates 30, 55. The inner ends of the plates 30 and webs 60 are welded at 31 to a bottom plate 35, extending along and welded to the tank body 11, and to a longitudinal channel member 40, respectively, the latter being welded at 42 to the plate 35. The stiffening plates 70 may be replaced by pipe lengths.
Patent GB-1419013-A (GB)
Title: Ducted warm air heating systems
IPC: B60H3/00
Filed: 1973-04-05
Abstract: 1419013 Valves BLOXWICH LOCK & STAMPING CO Ltd 3 April 1974 [5 April 1973] 16236/73 Heading F4V [Also in Division G1] The flow of air in a ducted warm air heating system is interrupted by a shutter closed by a photo-electric arrangement on detection of smoke or smog in the air flow. As shown, Fig. 1, a casing 1 designed to be incorporated in a duct is provided with a horizontally pivoted shutter 3 having a slot 4. A control unit 8 projects a beam of light across the duct for repeated reflection from opposing mirrors. The beam passes through the slot 4 and is received by a photo-detector. When smoke or smog is detected the shutter 3 is rotated to close the duct and a panel 5 slides down to close the slot 4 in the shutter. A visible or audible alarm may be provided and actuation of the system may cut off the air heating device. The shutter is re-opened by a manual control.
Patent GB-130217-A (GB)
Title: Improvements in, or relating to, Change-speed-gear Operating Mechanism for Motor Vehicles.
Inventor: DORRINGTON HALLETT
IPC: F16H63/46
Filed: 1918-10-07
Abstract: 130,217. Dorrington, H. Oct. 7, 1918. Controlling different functions by same lever.- Consists in the provision of mechanism for enabling the clutch pedal to be used for operating the change-speed gear. A slotway or gate is formed in the footboards, and beneath it is arranged a casing H carrying four sliding rods A, B, C, D, of which the first pair A, Bare linked together, so as to move simultaneously in opposite directions, by a centrally pivoted lever G having studs engaging slots in the rods. The second pair of rods C, D are similarly connected, and the central rods of each pair are connected to the sliding gear wheels. The clutch pedal is pivoted so that it can be swivelled laterally and brought opposite one of the four rods, which is then slid to operate the gear 'by the pressure of the clutch spring.
Patent GB-473709-A (GB)
Title: Improvements in or relating to devices for excluding dust from axle boxes and the like
IPC: B61F15/22
Filed: 1936-06-11
Abstract: 473,709. Stuffing - box substitutes. TRIMMING, G. A. R., and THACKWELL, A. H. June 11, 1936, No. 16364. [Class 122 (v)] A dust - excluding device for axle boxes of railway vehicles consists of a flexible sleeve 5 of leather, secured to the axle bar by the washer 12 in the groove 11, and biassed against the wheel 3 by springs 18. In a modification, the sleeve is secured by the outer surface of the axle box by screws.
Patent GB-184432-A (GB)
Title: Improvements in and relating to zero-registering arrangements for adding-machines
IPC: G06C7/10
Filed: 1921-02-08
Abstract: 184,432. Greve, J. E. W. Feb. 8, 1921. Adding-apparatus with operating-means; selecting denomination; controlling printing of zeros. -In a single-bank, key-set, and independentlyoperated adding-machine, with a field of stoppins mounted in a transversely-moving carriage, separate keys for denoting two or more zeros are provided and effect displacements of the carriage to the extent of two or more denominations. The carriage has a rack 22 engaged by a pawl 55 pivotally mounted on a stop-piece 59 secured to a spring-controlled rod 62 slidably arranged in a bracket 57 pivoted between centres 23. The stop-piece extends through a slot in the bracket and is limited in movement to the right by means of a stepped lever 61 pivoted to the bracket at 64 and urged to the position shown by a spring 65. When any key is depressed an universal bail 24 through a rod 52 swings the bracket about its supports 23 so as to disengage the pawl 55 from the rack and at the same time to thrust the lug 54a into engagement with the teeth to prevent the carriage from being moved to the left bv its spring. The rod 62 and pawl 55 being thus freed move to the right until stopped by a step of lever 61 and when the key is released, the pawl 55 swings again into engagement with the rack which, with the carriage, can then move to the left until the stop-piece 59 regains its normal position. The extent of movement of the carriage therefore depends upon the length of travel of the pawl 55 when freed from the rack, and this in turn depends upon which of the steps in the lever 61 is disposed in the path of the piece 59. The lever 61 is positioned to vary this travel by means of cam levers adapted to be moved by the corresponding zero keys through bell-cranks 69, 77 and by seizing a pin 66 to pull down the lever 61 to the extent required. When a key for two or more zeros is depressed, it effects the setting of the zero stop-pins in all the denominations concerned by an arrangement of stop collars 73a disposed in echelon on plunger rods 73 aligned with the stoppins 18 and operated by the zero keys. To prevent a second key depression before the carriage has completed its traversing movement a rod 111 connected to the universal bail is guided at its free end in an aperture in a bracket, this aperture being normally uncovered by one arm of a spring-controlled bell-crank lever 108, the other arm of which is engaged by the rod 62. When by depression of a key, the escapement mechanism has been rotated and the bell-crank lever consequently released by the rod, the rod 111 is blocked by the lever so that further key operation cannot occur until, by return of the rod 62 upon completion of the escapement movement, the bell-crank lever is shifted to clear the path of the rod 111.
Patent GB-552210-A (GB)
Title: Improved holder for safety razor blades
IPC: B26B21/52
Filed: 1941-12-19
Abstract: 552,210. Razor blade holder. PIDGEN, A. Dec. 19, 1941, Nos. 16414/41 and 3361/42.. [Class 60] [Also in Group XIV] A holder for safety razor blades comprises two strips 11, 13, Fig. 1, riveted at 15 and provided respectively with projections 12 and holes 14 to accommodate a blade 18. The blade-holding ends of the strips 11, 13 are bevelled from the longitudinal centre line A, B outwards to the longitudinal edges so that the cutting edges of the blade lie approximately in the plane of each bevelled surface at the correct angle for stropping or honing. The short ends 16, 17 are internally bevelled so that they may be nipped together to separate the strips at their blade-holding ends. In a modification strips 19, 20, Fig. 3, are riveted at 23 and provided with a spring washer at the joint so that the short ends 21, 22 may be nipped together to separate the strips at the blade end. The edges of the narrower handle are serrated to provide a grip. A sheath handle 25 may also be provided comprising two strips 26, 27 mounted on the rivet 23 and having bevelled surfaces. The strips 26, 27 are also joined by a rivet 28. A strop for use with the razor may be formed of a thin slab of compressed cork composition oiled and treated with powdered chromium oxide. The strop and razor may be accommodated together in a suitable case.
Patent GB-1041115-A (GB)
Title: Steam or vapour baths
IPC: A61H33/06
Filed: 1964-04-21
Abstract: 1,041,115. Steam or vapour baths. J. S. MILNER. May 31, 1965 [April 21, 1964], No. 16414/64. Heading A4N. A steam or vapour bath, which comprises a collapsible or foldable cabinet with closure flaps 2 shaped to accommodate the neck of a user and a tray-like floor 7, has steam admitted to its interior by means of pipes 9A and 11A connected to a separate externally-located, electrically heater water boiler or steam generator 10. Pipe 9A may be composed of a di-electric material. A seat 18 is, and a foot support 8 may be, provided in the cabinet.
Patent GB-543848-A (GB)
Title: Magnetic systems for electrical apparatus
IPC: H01F1/24
Filed: 1940-11-13
Abstract: 543,848. Magnetic cores. TELEPHONE MANUFACTURING CO., Ltd., and PADDLE, L. H. Nov. 13, 1940, No. 16434. [Class 38 (ii)] Magnetic cores are produced from material comprising magnetic dust (iron or nickel-iron alloy) and a persalt such as a permanganate or a perborate. Silicates such as magnesium, sodium, or potassium silicate may be added. In an example 94 per cent iron dust of 15 to 40 microns grain size is mixed with 2 per cent powdered magnesium silicate. To this is added 2.5 per cent potassium permanganate dissolved in water. After mixing and boiling 1.5 per cent sodium silicate is added, and after further mixing and evaporation to dryness, the powdered material is moulded at pressures up to 120 tons per sq. in. to form cores which may be subsequently heat-treated. In another example permanganate of calcium is used.
Patent GB-1536231-A (GB)
Title: Papermakers felts
IPC: D04H5/02
Filed: 1977-04-20
Abstract: 1536231 Papermakers felt ALBANY INTERNATIONAL CORP 20 April 1977 [5 May 1976] 16465/77 Heading D1R [Also in Division B5] An endless papermakers felt comprising a plurality of cross-wise yarns forming a base and a non-woven porous sheet of textile fibres needled to said cross-wise yarns, the felt being free of length-wise yarns is produced by needling the sheet to a woven fabric the lengthwise yarns of which are subsequently dissolved. Polyvinyl alcohol, polycarbonate, calcium or sodium alginate, polystyrene and ethyl cellulose are specified as soluble yarns. Polyamide, polyimide, polyester, polyethylene polypropylene and metal monofilaments and glass fibres may be used as the cross-wise yarns. The textile fibres may be batts of wool, polypropylene polyamide, polyester or mixtures thereof. A batt may be needled to either side of the yarn array. One batt may be of wool fibres or a further batt needled on.
Patent GB-789892-A (GB)
Title: Improvements in or relating to the production of steel and iron
Inventor: SPEITH KARL GEORG
IPC: C21C5/32
Filed: 1955-06-08
Abstract: Steel or technically pure iron is made from pig iron by blowing oxygen on to the surface of molten pig iron at a rate sufficient to decarbonize and dephosphorize the metal and maintain the phosphorous content below the carbon content, reducing the rate of blowing to decrease the rate of decarburizing but maintain a high rate of dephosphorizing, and then increasing the rate of blowing to complete the decarburization.  The alterations in the rate of blowing may be produced by using more or less nozzles, or nozzles of different diameter, or raising or lowering the nozzles, or varying the pressure of the oxygen.  The best results are stated to be obtained when the nozzles are 20 to 30 inches above the quiescent surface of the metal. Foaming of the slag may be prevented by directing some nozzles against the slag or by the addition of alkali or alkaline earth metal halides, mine dust, bauxite or sand.  Slag forming and cooling agents may be added e.g. lime, iron ore, mill scale, limestone or scrap metal.  A further oxidation at a low oxygen rate may also be carried out.
Patent GB-569534-A (GB)
Title: Internal-combustion turbine plant
IPC: F02C5/04
Filed: 1943-10-08
Abstract: 569,534. Gas turbines. CALDWELL, A. F., and HAYWARD, C. E. Oct. 8, 1943, No. 16544. [Classes 110 (i) and 110 (iii)] A compressor rotor 21 and a turbine rotor 41, are separated by a partition 12 which has ports 55 leading air, or fuel mixture, from the compressor delivery chamber 30 to rotary combustion chambers 48. Regulation may be effected by adjusting the internal capacity of the combustion chambers, and/or by varying the speed of rotation thereof, and/or by controlling the supply of fuel. The compressor rotor is driven from the turbine shaft 34 through speed-reduction gearing 37, 36, and is supported on a ballrace 32. Fuel mixture is taken into the compressor through a number of angularly-spaced inlets, and driven through fixed and moving blades 26, 22 from an annular inlet 27 to a radial outlet 8 provided with a vortex ring 29 to the chamber 30. The turbine has fixed and moving blades 46, 42, leading to an exhaust 47. Each combustion chamber 48 has a pointed opening 49 and rotates in a liner 51 containing inlet and discharge points 54, 53. The first stationary blades, or nozzles, 46a are located in a ring 14a. The valve is fast with gear 57 driven by a pinion 58 on a countershaft 59 which may drive the electrical distributor for the sparking plugs 61. The gears 57, of all the valves, intermesh causing the valves to rotate in opposite directions. Each shaft 59 is driven from the main shaft by a connecting shaft 70 and two universal joints such as 69, and the speed may be varied. Each plug 61 is fitted in sleeve 63 pressed outwards by a spring 64 acting on a flange 65 supported by a thrust bearing 66 to which pressure can be exerted, manually or autoinatically, for controlling the interior capacity of the combustion chamber. Compressor and turbine casings have cooling jackets.
Patent GB-977741-A (GB)
Title: Improvements in and relating to thermostatically controlled immersion heaters
Inventor: PARTOON ERNEST HAYWOOD
IPC: H01H37/70
Filed: 1961-05-08
Abstract: 977,741. Control of heating resistors. ROBERT MACLAREN & CO. Ltd. July 2, 1962 [May 8, 1961; March 12, 1962; March 30, 1962], Nos. 16557/61, 9357/62 and 12240/62. Headings H2B and H2H. A thermostatically controlled immersion heater 10, Fig. 3, is provided with a pair of series relay contacts 14 arranged to open when a thermostat 11 opens so that there is only one heating cycle. A blade 12, Fig. 5, which may be bi-metallic, moves a latch 16 over a catch on member 13a, hence when the blade 12 cools, the contacts open. Alternatively, the blades 12, 13 may be deflected by a solenoid (Fig. 4, not shown). The catch may be manually disengaged with the latch so that the thermostat cycles normally. The relay, an on-off switch and a control for releasing or disengaging the catch may be housed together in a box remote from the heater. The relay may be reset by means of an electromagnet 17.
Patent GB-795719-A (GB)
Title: Catalyst and process for its preparation
IPC: B01J23/42
Filed: 1956-05-29
Abstract: Attrition-resistant catalytic alumina particles are formed by spray drying a dispersion of an aluminium hydrosol, readily convertible to alumina on dehydration, to produce highly attrition-resistant particles larger than 15 to 25 microns in diameter, mixed with less attrition-resistant particles, subjecting all the said particles to attrition to reduce the less attrition-resistant particle to fines smaller than 20 microns, e.g. by subjection to the action of a high velocity gas jet, elutriating the fines, re-dispersing said fines, and repeating the spray drying, attriting, elutriating and re-dispersing steps until the less attrition-resistant particles are substantially eliminated.  The hydrosol of the aluminium compound may be prepared from aluminium alcoholate by peptizing with acetic acid prior to spray drying.  The base may be impregnated with 2 to 20 per cent by weight of the oxide of a metal in Group VI of the Periodic Table, e.g. molybdenum trioxide; 0.01 to 20 per cent by weight of the metal of Group VIII of the Periodic Table or 0.01 to 2 per cent by weight of platinum.ALSO:Attrition-resistant catalytic alumina particles are formed by spray drying a dispersion of an aluminium hydrosol, readily convertible to alumina on dehydration, to produce highly attrition-resistant particles larger than 15 to 25 microns in diameter, mixed with less attrition-resistant particles, subjecting all the said particles to attrition to reduce the less attrition-resistant particles to fines smaller than 20 microns e.g. by subjection to the action of a high velocity gas jet, elutriating the fines, re-dispersing said fines, and repeating the spray drying, attriting, elutriating and re-dispersing steps until the less attrition-resistant particles are substantially eliminated.
Patent GB-728876-A (GB)
Title: Tool for guiding an upholstery needle through a piece of work
IPC: D05B85/00
Filed: 1953-06-16
Abstract: 728,876. Sewing. HOLMQUIST, T. June 16, 1953, No. 16579/53. Class 112. A sewing tool comprises in combination an upholstery needle 5 and a rod-like holder 1 for the latter. The needle is provided at its pointed end with an eye 7 for the thread and is bent at its blunt end 8. The holder has a handle 2 at one end, and its other end, which is tubular and pointed, has a side opening 4 for detachably receiving the bent end 8 of the needle so that the latter is held with its point directed towards the handle and forms an acute angle with the axis of the holder. In use the assembled holder and needle are pushed through the work by means of the handle. The needle is pressed against the holder while passing through the work, and springs away from the holder on emerging from the work. The holder is then pulled backwards, when the pointed end of the needle carries the thread through the work in advance of the holder. The needle is then disengaged from the holder, the latter is withdrawn. from the work, and after holder and needle are re-assembled a fresh stitch is made.
Patent GB-236552-A (GB)
Title: Improvements in rotary beaters for culinary purposes
IPC: A47J43/09
Filed: 1925-06-29
Abstract: 236,552. Soc. Hauser FrÞres. July 3, 1924 , [Convention date]. Mixers with stirrers having complex motions.- Mixing-apparatus for preparing mayonnaise &c. comprises a beater 1 slidably mounted on a member 9 which is releasably hooked to a member 8 driven through bevel gear 4, 6 from a jetwheel 20. The bowl 10, in which the beater works with a gyratory motion, is held in position by a rubber-covered detachable clamp 14, and the materials are supplied near the edge of the bowl by a funnel 17, placed as shown. The jet wheel comprises a lead hub in which the vanes and axle are cast. The axle passes through eyeletted holes in the casing and is fitted with tapered rings 23 and loose washers 26.