baber/WOPTO huggingface dataset:
Patent GB-284758-A (GB)
Title: Improvements in and relating to the treatment of fluids by adsorption and like processes
IPC: C10K3/00
Filed: 1926-11-02
Abstract: 284,758. Hollings, H., Pexton, S., Voss, W. A., and Gas Light & Coke Co. Nov. 2, 1926. Purifying processes.-The purification of coal gas by adsorption methods is carried on under conditions preventing the formation or introduction of impurities within the adsorption sphere. The contact chamber or its exposed surface is composed of material chemically inert towards those fluid constituents which would otherwise generate metallic carbonyls and towards contained impurities such as hydrogen sulphide. Suitable material may be a ceramic enamel. The gas may be preliminarily treated to remove carbonyls or other metallic compounds as by treatment with the same or different adsorption material or with a reagent destructive of such compounds, such as charcoal impregnated with chromates or bichromates or heated copper. The means described in Specification 247,050, [Class 1 (i), Chemical processes &c.], for removing iron carbonyl from gases may be applied. Other adventitious impurities such as alkaline liquids or metalliferous particles are removed from the gas for treatment by or regeneration of the adsorbent, for example by a filter consisting of used adsorption material which has been rejected as exhausted. Specifications 238,984; and 257,879, [Class 1 (i), Chemical processes &c.], are referred to.
Patent GB-458701-A (GB)
Title: Improved method of and machine for cutting gear teeth upon a tapered blank
IPC: B23F5/16
Filed: 1935-10-04
Abstract: 458,701. Gear-cutting. SYKES, W. E., 33, Gates Circle, Buffalo, New York, U.S.A. Oct. 4, 1935, No. 27474. Convention date, Oct. 12, 1934. [Class 83 (iii)] The teeth of a tapered gear 57 particularly for connecting shafts arranged at small angles up to 10‹, are cut by means of a pinion cutter having its axis in a common plane with the blank arbor and fed towards the blank while it is reciprocated along a line determined by the desired root angle of the teeth. The cutting may be effected on a machine similar to that described in U.S.A. Specifications 1,750,029 and 1,750,030. The two pinion cutters 23, 24 are rotated from a gear-box 10 through bevel gearing 13, shaft 15, gearing 16, and worm gearing 21, 22, the cutters having a twisting movement for cutting double helical teeth imparted during their reciprocation by helical guides 26, 28. At the same time the cutters have a generating movement in unison with the blank rotation. The usual cutter relief is provided. The blank is rotated from the gearbox through a shaft 12, change gears 33, shaft 36 and worm gearing 37 and a universal joint which includes a centralizing ball socket 43 and interengaging crown gears 51, 54. The tail end of the blank arbor is supported on a ball 42 fixed to an adjustable slide 44. The invention is also applicable to cutting tapered single helical gears and tapered splines and may be applied to gear cutting machines of the rack type.
Patent GB-1166198-A (GB)
Title: Improvements in load cells.
Inventor: GOYMOUR EDWARD PHILIP
IPC: G01L1/04
Filed: 1967-06-14
Abstract: 1,166,198. Dynamometers. NATIONAL RESEARCH DEVELOPMENT CORP. May 13, 1968 [June 14, 1967], No. 27490/67. Addition to 1,101, 959. Heading G1W. A load cell comprises a block of alloy steel 1 through which two bores 4, 5 extend longitudinally, each inter-connecting pairs of slots 6 symmetrically arranged on each side of a slot 8 which opens along its length into the bore 4, dividing the central portion of the block 1 into inter-connected halves 10, 11, joined to the main body of the block by narrow tongues 13, 14 extending longitudinally through the block. The inter-connection between the halves is formed by a similar narrow tongue 12 left between the bore 5 and a bore 9 in which the slot 8 terminates. A dial gauge 20 is arranged between arms 16, 17 extending one from each half 10, 11 and its probe 19 is of a type suitable for relative movement of the arm 17 towards or away from the arm 16 according to whether the load cell is designed to receive a compressive load between seatings 2, 3 or a tensile load on shackles attached to the seatings.
Patent GB-1193877-A (GB)
Title: Magnetic Amusement Game or Educational Device
Inventor: WAGNER HEINZ
IPC: A63F3/02
Filed: 1967-06-14
Abstract: 1,193,877. Magnetic game device. H. WAGNER. 14 June, 1967, No. 27505/67. Heading A6H. [Also in Division G5] An amusement game device comprises a base plate and one or more markers displaceably arranged on the base plate, the base plate and the or each marker being formed, at least partially, of ferromagnetic material and the ferromagnetic material of either the base plate or the or each marker being a permanent magnet whereby the or each marker is attracted towards the base plate, there being a transparent cover plate, which is arranged parallel to the base plate and which has its lower surface spaced a small distance away from the or each marker when the latter is in contact with the base plate, and a guide member incorporating a permanent magnet, the polarities of the various members containing permanent magnetic material and the spacing between the cover plate and the or each marker being so arranged that the attraction between the or a selected marker and the base plate is overcome and the marker moved away from the base plate when the guide member is located opposite the marker so that the marker can be shifted across the base plate by moving the guide member substantially parallel to the base plate. The base plate may have a design thereon or be covered by a removable pattern carrier enabling the device to be used in playing draughts, chess or word games. A labyrinth may also be disposed between the base and cover plate.
Patent GB-500180-A (GB)
Title: Improvements in and relating to dry surface contact electric rectifiers
IPC: H01L21/06
Filed: 1938-09-21
Abstract: 500,180. Asymmetrically-conducting resistances. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 21, 1938, No. 27541. Convention date, Sept. 23, 1937. [Class 37] An electric valve of the dry-rectifier type comprises a barrier layer 3, strengthened where it surrounds a control grid 4 embedded in it, to prevent grid emission. The thickened parts can extend into the semi-conductor layer 2, as shown in section in the Figure. The various layers of semi-conductor, the grid bars and the thickened parts of the barrier layer may be produced by a process of vaporization, dusting on &c. using stencils.
Patent GB-270356-A (GB)
Title: Improvements in or relating to calcining or other operations in rotary kilns or the like
IPC: F27B7/00
Filed: 1925-11-03
Abstract: 270,356. Rigby, T. Nov. 3, 1925. Rotary kilns; charging. - Relates to processes for the treatment of materials by wet methods in rotary kilns in which a slurry of the material is atomized or dispersed in a finely-divided condition into the gases in the kiln, as described in Specifications 243,410 and 261,814, and comprises (a) dividing the kiln into two parts, into the first of which the material is sprayed, deposited and dried before being passed on to the main portion of the kiln, (b) the application of certain cement-making processes claimed in Specification 243,410 to the treatment slurries of other materials such as calcium carbonate, ores, or ore residues, and (c) the application more broadly to the treatment of cement and other slurries of features claimed in Specification 261,814 only in connection with particular processes of cement-making. In one construction, Fig. 10, the two parts 7, 7a of the divided kiln are in alignment and are connected by a shoot 60, which may be vibrated, and which may be covered by a shield 64 of ridge form. Existing kilns may be modified by adding a new kiln head 5<a> and a drying-drum 7<a> to the old head 5, and the drum 7<a> may be at right-angles to the main kiln. In a modified form the two drums are parallel to, but out of alignment with one another, and the upper drying-drum delivers into an extension fitted on the top of the old kiln head, and in a further form the slurry is sprayed into the lower end of the drying-drum through the old kiln head. In another modification, the two drums are reversely inclined, and both the heating-gases and the charge pass downwards through the drying-drum. The slurry is sprayed into the drum in the manner described in Specifications 243,410 and 261,814, and both kiln heads may have dust-catching baths. Specification 233,764 also is referred to.
Patent GB-519685-A (GB)
Title: Improvements in or relating to means for operating vapour or gas filled electric discharge lamps or tubes
IPC: H05B41/18
Filed: 1938-09-22
Abstract: 519,685. Discharge lamps. IONLITE, Ltd., and STICKLEY, W. A. Sept. 22, 1938, No. 27695. [Class 39 (i)] [Also in Group XXXV] A transformer for operating a vapour or gas filled discharge lamp has two dissimilar secondary windings 12, 13 one to develop high voltage-1,500 volts-for striking the arc the other to develop normal running voltage, 650 volts. The second is connected in circuit by a manually or thermal controlled switch.
Patent GB-1362843-A (GB)
Title: Method and device for anchoring tie rods in soil or rock
IPC: E02D5/80
Filed: 1971-06-14
Abstract: 1362843 Ground anchors P A SMITH 14 June 1971 27775/71 Heading E1B A tie rod has an anchorage portion comprising a series of inner 7 and outer 1 cylindrical sleeves interconnected by annular spacers 6, through which reinforcing rods 10 between the sleeves passes, the walls of the sleeves being formed with weakenings so that when the anchorage is placed in a preformed hole and grout under pressure is introduced into the central space, the grout is forced out through the weakenings into the space between the sleeves and then into the ground. The central space is flushed out with water so that after the grout has cured a further injection may be made. Seals 14 are provided so that grout is only injected to one cylinder at a time. Alternatively the grouting tube 19 may carry a pair of seals. The spacers may comprise threaded sleeves 6". The sleeves are preferably made of asbestos cement. Various modifications of the spacers and sleeve interconnection are described. In a modified method the inner sleeves are omitted.
Patent GB-358242-A (GB)
Title: Improvements in temperature regulators
IPC: G05D23/13
Filed: 1930-09-18
Abstract: 358,242. Thermostats. KINGS PATENT AGENCY, Ltd., 146A, Queen Victoria Street. London.-(Forvaltnings Aktiebolaget Hvalen ; Gothenburg, Sweden.) Sept. 18, 1930, No. 27887. [Class 64 (ii).] In a thermostatic mixing valve for hot and cold water, supplied through inlets 3, 4, the mixing- chamber 1 is provided with a seating 9 having apertures 10 for the passage of water and adapted to carry one end of a tube 7 of high expansibility. Water passes through and around the tube 7 to the outlet. The lower end of the tube 7 carries a sliding member 11 having apertures 14, to which is secured a bar 12 of ferro-nickel alloy of low expansibility. The bar 12 carries an extension 16 actuating a bell-crank lever 19 within an extension of the mixing-chamber, which lever actuates the valve. A brass liner 22 protects the bar 12 from corrosion.
Patent GB-826160-A (GB)
Title: Improvements in and relating to draglines
IPC: E02F3/60
Filed: 1956-09-12
Abstract: 826,160. Drag buckets. ELECTRIC STEEL FOUNDRY CO. Sept. 12, 1956 [Jan. 10, 1956], No. 27895/56. Class 78 (4). [Also in Group XXV] The pin 29 (Fig. 2) of a shackle for securing a dragline to a drag bucket is retained in the shackle by a plate 34. As illustrated the pin has a head 30 fitting in a recess 31 in the shackle and the plate 34 is slid beneath a flange 33 (Fig. 4) on a wall 32 formed around the recess 31. The plate 34 is then secured by bolts 45 (Fig. 2) taking through holes 40, 41 (Fig. 4) in the plate and engaging nuts 44 (Fig. 2) held in recesses 42 in the shackle. The shackle terminates in portions 19, 20 (Fig. 4) adapted to embrace and be welded to the cheeks of the bucket, preferably at a point where the cheeks are vertical so that the pins of the shackles on opposite sides of the bucket may be parallel.
Patent GB-519632-A (GB)
Title: Improvements in or relating to projection screens
IPC: G03B21/58
Filed: 1938-09-24
Abstract: 519,632. Projection screens. NATIONAL SCREEN SERVICE, Ltd., HEPWORTH, C. M. and KIMBERLEY, P. Sept. 24, 1938, No. 27897. [Class 97 (i)] In screens supported at short intervals around their entire periphery by spring-controlled hooks or the like engaging holes formed in the sheet near its edges, the, holes are of elongated form in a direction parallel to the adjacent edge, and the hooks are shaped to correspond, the engagement between the holes and hooks being of substantial length and straight or curved. As shown, a screen 1 of cellulose acetate is carried by a frame 2 having sloping sides and an opening somewhat smaller than the screen. Slots 6, with round ends, in the screen margins are engaged by hooks 5 attached to helical springs 7 secured to the frame by screws 8. The hooks. and slots may have a straight line engagement, as shown, or a curved engagement. Specifications 153,724, 205,255, [both in Class 97 (i)] and 386,737 are referred to.
Patent GB-1116658-A (GB)
Title: Fluorination of organic compounds and catalysts therefor
Inventor: ROBOTA STEPHEN
IPC: B01J23/26
Filed: 1965-07-01
Abstract: A process for the preparation of an at least partially fluorinated aromatic or aliphatic compound comprises fluorinating an aromatic compound halogenated with a halogen other than fluorine or an aliphatic compound halogenated with at least one halogen substituent other than fluorine in the presence of a fluorinated complex coprecipitated metal-alumina catalyst prepared by mixing a solution containing in combined form a metal of Group 1B, 2B, 6B or 8 of the Periodic Table (Lange's Hand-book, 8th Edition) with a solution of alumina to form a complex metal-alumina co-precipitate and then fluorinating the co-precipitate. The fluorination of the organic compound may take place in the liquid or the vapour phase.  The fluorination of the metal-alumina complex may be performed before or during the contacting of the organic halogen compound with the fluorinating agent.  The organic halogen compound may be formed in situ by simultaneously feeding a fluorinating agent, a halogenating agent and an appropriate organic compound to the reactor: halogenated compounds are obtained as by-products in this modification.ALSO:Fluorinated complex coprecipitated metal-alumina catalysts are prepared by mixing a solution containing in combined form a metal from Groups 1B, 2B, 6B and 8 of the Periodic Table (Longe's Handbook, 8th Edition) particularly Cu and Co. and a solution of alumina to form a complex metal-alumina coprecipitate and then fluorinating the coprecipitate.
Patent GB-713939-A (GB)
Title: Improvements relating to punching, shearing and like machines
IPC: B23D17/08
Filed: 1952-11-06
Abstract: 713,939. Metal working presses; shearing. COLLINS, J. H. Nov. 6, 1952, No. 28018/52. Class 83 (4) A shearing or other machine for operating on rods or bars comprises a fixed blade or jaw, a movable blade or jaw on a carriage, operating means for moving said carriage and further operating means between said carriage operating means and said carriage adapted to open the blades or jaws for receiving a rod or bar in a direction transverse to its longitudinal axis and to move the blades or jaws to an intermediate position in close proximity to the rod or' bar said further means comprising a cam movable in an aperture in saidcarriage. In an embodiment the machine comprises a frame 4 in which is slidably mounted a carriage 5 carrying a knife blade 7 co-operating with a stationary blade 6 secured to the frame. A pair of levers 8 pivotally mounted on a shaft 9 carry between their free ends a manually operable lever 10 having teeth 11 meshing with a toothed segment 12 on the frame. A shaft 13 supported by the levers 8 extends through a profiled aperture 14 in the carriage 5 and carries a cam 15 arranged within said aperture. A second manually-operable lever 16 is secured to the shaft 13 for rotating the cam in the aperture so that it coacts with the walls thereof and raises or lowers the carriage 5 relative to the arms 8. In its lowest position the cam abuts against a shoulder 17 formed in the wall profile of the aperture. In operation the carriage 5 is firstly lowered by rotation of the lever 16 until the cam abuts the shoulder 17 and the knife blade 7 rests lightly on the work. The operating lever 10 is then drawn downwards so that the carriage is also urged downwards by the shaft 13, cam 15 and shoulder 17 and the workpiece is cut. The machine may be power operated and may employ punching or like tools instead of knife blades.
Patent GB-483314-A (GB)
Title: X-ray film pack for dentistry
IPC: G03C3/00
Filed: 1936-10-15
Abstract: 483,314. Film packs for radiography. I. G. FARBENINDUSTRIE AKT.-GES. Oct. 15, 1936, No. 28028. Convention date, Nov. 1, 1935. [Class 98 (i)] An X-ray film pack comprises a sheet of metal foil, e.g. aluminium, and a sheet of paper laid over the exposure side of the pack and folded over the edges and fastened on the opposite side. Two films f are covered with black paper sheets g. A metal sheet e is laid on one side, and sheets of aluminium foil a and paper b are laid on the other side, the latter being folded over the edges as at c, and the edges joined by adhesive paper d. The sheets may be coloured on the inside, e.g. dark red or mat black, in order to absorb actinic rays.
Patent GB-535080-A (GB)
Title: Improvements in automatic control or alarm devices
IPC: G05D23/275
Filed: 1939-10-17
Abstract: 535,080. Mechanical relays. LOBLEY, A. G., BIRMINGHAM ELECTRIC' FURNACES Ltd., FENNELL, C. A. F., and FOSTER INSTRUMENT CO., LTD. Oct. 17, 1939, No. 28047. [Class 118(ii)] In a mechanical relay device in which a pointer A moved in accordance with a'variable such as temperature is periodically depressed by a bar 2 and, if deflected, causes the depression of one or other of two members 6 which control the variable and/or give an alarm as described in Specification 441,640, the position of the members is adjustable by the rotation of a shaft 13 by means of a key (not shown) designed so that its engagement with the shaft is accompanied by movement against a spring of a sleeve 28 connected to a rod 32 which operates via a lever 24 on a rod 21 which preventsdepression of the bar 2. The lever may also move a mercury switch 36 for interrupting the current of the primary instrument. The invention may be incorporated in a system such as that described in Specification 521,793, [Group XXXV], in which adjustment of means for controlling a variable is accompanied by a corresponding adjustment of a monitoring and recording device. The latter device in the present case would be adjusted by means of a bevel wheel 41.
Patent GB-327394-A (GB)
Title: Improvements relating to the dyeing and printing of cellulose acetate
IPC: D06P3/40
Filed: 1928-10-01
Abstract: 327,394. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Oct. 1, 1928. Azo dyes are obtained by coupling diazo compounds derived from benzene, its homologues or derivatives thereof free from sulphonic and carboxylic groups with quinolones also free from the said groups of the general formula in which R = an alkyl radicle which may be substituted and Y = hydrogen or any appropriate substituent. In examples, the following dyestuffs are described (1) m-nitraniline or p-aminodimethylaniline # N-methyl-4-hydroxy-2- quinolone, (2) p-chloraniline # 6-chloro-N- ethyl-4-hydroxy-2-quinolone (obtained from 5- chloro-2-ethylammo-1-benzoic acid and acetic anhydride). The Provisional Specification describes also the dyestuff o-chloraniline # 9 chlor-N-ethyl-4-hydroxy-2-quinolone.
Patent GB-1527057-A (GB)
Title: Electronic timepiece
IPC: G04G5/00
Filed: 1976-07-06
Abstract: 1527057 Electronic timepieces TOKYO SHIBAURA ELECTRIC CO Ltd 6 July 1976 [7 July 1975]  28101/76 Heading G3T In the correction mode of an electronic timepiece, the display is automatically turned off after a pre-set period when a counter counting clockpulses reaches a predetermined count. As shown, when correction mode select button S 2  and display button S 1  are sequentially closed, an hour display e.g. an LED is energized. Whilst button S 1  is pressed, pulses from logic circuit 8 update the hour display by one digit per second. At the desired digit, S 1  is released and the updating stops. If button S 2  is pressed again, the minute display is energized and may be updated by pressing button S 1 . The hours and minute displays are alternately selected by button S 2 . In the correction mode, whenever button S 1  is released, the updating stops and the updated value held for a pre-set period. This is set by counter 6 which counts the updating pulses from circuit 8, starting when S 1  is released, up to a predetermined count e.g. 60, after which circuit 7 is reset to turn off the display. This display may also show seconds, dates or months.
Patent GB-209824-A (GB)
Title: Improvements in or relating to nail and like fastener assorting mechanism
IPC: A43D71/00
Filed: 1922-10-17
Abstract: 209,824. British United Shoe Machinery Co., Ltd., Pratt, W., and Towndrow, E. F. Oct. 17, 1922. Loose-nailing.-In a machine for inserting loose, headed, fasteners, particularly " Cutlan Bills," of the general type described in Specification 1494/93, one side bar 4 of the fastener raceway is provided with a hump or raised portion 7, with bevelled ends 12, 13, located to reciprocate in advance of and below a cover plate 6 having a bevelled deflecting face 9. An improperly placed fastener is tilted by the hump 7 sufficiently to be dislodged readily by the deflector 9. Specification 20722/06 also is referred to.
Patent GB-618502-A (GB)
Title: Improvements relating to dry gas meters
IPC: G01F3/22
Filed: 1945-10-25
Abstract: 618,502. Valves for gas meters. CHELTEN. HAM METERS, Ltd., PORTER, J., and TAYLOR, H. Oct. 25, 1945, No. 28210. [Classes 54 and 135] A valve for a dry gas-meter comprising a seating a, Fig. 1, and a cap b rotated by the meter mechanism, has at least that part of the cap or seating which coacts with the seating or cap, respectively, made from a material having an inherent lubricating property, e.g. graphite. The seating comprises concentric rings c, d, Fig. 4, interconnected by radial ribs e forming a plurality of ports. The cap, of which Fig. 3 is an inverted plan, has an inlet port i, and a chamber g by which the central port in the seating is placed sequentially in communication with the other ports. Either the seating or the cap is made wholly of graphite, or the cap may be made with a graphite facing. The part, i.e. the seating of the cap, not made wholly or in part of graphite may be made wholly of a metal having a low coefficient of friction, e.g. an antimony-tin alloy. The edges of the seating with which the cap co-operates are made as narrow as practicable, e.g. <1>/32 to 1/16 inch.
Patent GB-948242-A (GB)
Title: A process for producing ª -butyrolactone
IPC: C07D315/00
Filed: 1962-07-23
Abstract: g -Hydroxy-butyronitrile is obtained by the catalytic hydrogenation of b -cyanopropionaldehyde in the absence of alkali; g -butyrolactone may then be obtained by hydrolysis. Specified catalysts for the hydrogenation are palladium or charcoal, platinum, a copper-chromium catalyst or a nickel-diatomaceous earth catalyst. Preferred hydrogenation conditions are room temperature and 20-300 kg/cm2 pressure.