baber/WOPTO huggingface dataset:
Patent GB-339264-A (GB)
Title: Improvements in or relating to pressure or volume gauges indicating pressure or volume in gas containers or cylinders
IPC: G01L19/08
Filed: 1929-09-03
Abstract: 339,264. Smith, H. P. Sept. 3, 1929. Pressure gauges.-A scale device which when fitted to an existing or new instrument lies concentrically with and adjacent to the normal scale and is movable relatively thereto, is provided with markings running in reverse direction to the normal scale. The pointer 2, Fig. 3, moves over the ordinary scale 3 reading from left to right. The movable scale 4 is formed on paper stuck to the glass casing of the dial or is engraved on the glass itself which rotates in a ring 5. In use, the zero mark of the movable scale is set to the pointer when consumption commences, the reading of the pointer on the movable scale at the end of the period giving the consumption.
Patent GB-808450-A (GB)
Title: Improvements in or relating to battery terminals
IPC: H01R11/28
Filed: 1956-09-03
Abstract: 808,450. Cable terminals. BEDDOW, V. J. Aug. 14, 1957 [Sept. 3, 1956], No. 26806/56. Class 38 (1). A cable terminal 2 having a tapered bore 3 is secured to the tapered terminal post 1 of a battery by an insulating nut 4 engaging a threaded spigot 8 on the post and having an annular shoulder 5 which projects into a recess formed by the connector at the top of the post, said recess being filled with corrosionresisting material 12 which is placed under pressure by the shoulder 5. Sealing rings 10, 9 are located above and below the connector and are compressed by the nut.
Patent GB-1430386-A (GB)
Title: Anti-bacterial process
IPC: C07D285/12
Filed: 1972-06-08
Abstract: 1430386 2-Amino-5-p-nitrophenyl-1,3,4-thiadiazole IMPERIAL CHEMICAL INDUSTRIES Ltd 22 May 1973 [8 June 1972] 26809/72 Heading C2C [Also in Division A5] In Example 9, thiosemicarbazide is reacted with p-nitrobenzoyl chloride to give 1-p-nitrobanzoylthiosemicarbazide which is then subjected to ring closure in the presence of sulphuric acid to give 2-amino-5-p-nitrophenyl-1,3,4- thiadiazole.
Patent GB-519077-A (GB)
Title: Improvements in and relating to the manufacture of collars for personal wear
IPC: A41B5/00
Filed: 1938-09-14
Abstract: 519,077. Men's collars. SHEPHERD, T. L. Sept. 14, 1938, No. 26851. [Class 141] Multi-ply collars having the lock ends covered by separate pieces of material are curved so as to facilitate manufacture by machinery, the parts being secured by adhesive. As shown, the backing a, Fig. 1, having a fold line b', is placed on the facing material b which is large enough to provide a double turning except in the regions A B. A single turning is made along the longitudinal edges p, q and the ends r of the collar, and a further turning at the ends of the collar and in the said regions after which a piece of facing material e, Fig. 3, with the edges g turned in, is secured to the lock ends. The final turning is then made on the longitudinal edges. In a modification, the pieces e are extended along the edges r. Specifications 481,015, [Group VIII], 491,492 and 515,191 are referred to.
Patent GB-894879-A (GB)
Title: Improvements in flap valves
IPC: F16K15/16
Filed: 1959-08-06
Abstract: 894,879. Valves. SPEMBLY Ltd., THORNE, A. C., and MAY, R. J. Aug. 5, 1960 [Aug. 6, 1959], No. 26910/59. Class 135. A valve for relieving pressure in a container such as a protective suit of P.V.C., a tent or a box, comprises a disc 18 of plastic material secured, e.g. by adhesive, to a stiffening-ring 17 and biased towards a seating 21 surrounding an inlet in a casing part 11 by a rubber or foamed plastic strip 19 which is of T-shape and secured by the upper or horizontal limbs of the T to the ring 17 and disc 18 by, e.g., adhesive. The bent vertical limb of the T engages the other casing part 10 which has an outlet 14 and is flanged for attachment to the container. The disc 18 has an integral radial projection 18a which passes through a slot in the wall of the part 10 and is clamped between screw-threads when the two parts 10, 11, which are of synthetic plastic material, are screwed together. The inlet and outlet apertures may each consist of a plurality of holes.
Patent GB-1311392-A (GB)
Title: Process for the agglomeration of particulate materials
IPC: C05G3/80
Filed: 1971-04-19
Abstract: 1311392 Agglomeration of coal dust LABOFINA SA 19 April 1971 [7 Oct 1970] 26941/71 Heading C5G [Also in Divisions C3 and E1] Particulate solids such as coal dust are agglomerated by treating with an aqueous solution of a polyaerylamide and an aqueous solution of a dialdehyde the aldehyde being present in an amount not exceeding one aldehyde group for one amide group.
Patent GB-375633-A (GB)
Title: Improvements in portable x-ray apparatus
IPC: H05G1/02
Filed: 1931-09-28
Abstract: 375,633. R÷ntgen - ray tubes. MœLLER AKT.-GES., C. H. F., 24, Fiihlsbuttelerdamm, F³hlsbuttel, Hamburg, Germany. Sept. 28, 1931, No. 26958. Convention date, Oct. 4, 1930. [Class 39 (i).] An X-ray tube 3 is mounted on a stay-put flexible tube 2 having internal high-voltage leads for supplying the discharge current and the cathode heating current. The leads pass through an insulated tube - mounting 4. The tube itself may be used as one of the conductor leads, and as shown the tube is mounted on an earthed transformer casing 1, the supply leads for the cathode passing through the tube.
Patent GB-187828-A (GB)
Title: Improvements connected with shock absorbers for aircraft
IPC: B64C25/64
Filed: 1921-10-12
Abstract: 187,828. Bolas, H., and Parnall, G. G. Oct. 12, 1921. Grant of Patent refused. India-rubber springs. - Upon or within a tube or rod 7 forming part of the undercarriage of an aircraft is mounted a series of units each comprising a flat metal ring or disc 4 having annular rubber blocks 6 moulded on either of its faces and connected together through apertures 5 in it, the units being separated by loose metal plates 8.
Patent GB-925738-A (GB)
Title: Improvements in and relating to quartz crystal filters
Inventor: WILKINSON CHRISTOPHER FRANCIS
IPC: H03H9/54
Filed: 1958-08-22
Abstract: 925,738. Crystal filter networks. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 21, 1959 [Aug. 22, 1958], No. 27080/58. Class 40 (8). [Also in Group XL (c)] A quartz crystal filter bridge circuit, Fig. 2a, has two parallel branches, one comprising a quartz crystal X<SP>TAL</SP> and an external resistance Rs in series, and the other comprising in series a second external resistance Rs<SP>1</SP> substantially of the same value as Rs and an external capacitance Cp<SP>1</SP>, which can be variable, of a value substantially equal to the parallel capacitance Cp, Fig. 2b, in the equivalent crystal circuit, both branches being connected to an output load resistance Ro. A variable capacitor can be connected in series with the branch including the quartz crystal to vary the centre frequency. Means can be provided for feeding to the two branches split signals of equal amplitude and in mutual anti-phase such as a wide-band transformer with a centre-tapped secondary, a paraphasing valve or transistor circuits. Two filter circuits of equal bandwidth and giving the same amplitude output at resonance can be used to form part of a narrow range frequency discriminator. The two filters are off-tuned by an amount equal to their bandwidth. Signal sources of low output impedances are used to drive both filters with negligible cross-coupling effects, application of equal amplitude signals to both filter inputs thus being ensured. The filter outputs are reversely rectified, using for instance reversed diodes. Buffer stages, such as cathode followers, may be arranged between the filters and the rectifiers. The outputs of the rectifiers are algebraically added together by either a resistive network or a feed-back amplifier adder. If the input is sinusoidally frequency-modulated, at a value of modulation index less than 0.2, at a constant deviation, and at a variable rate, an amplitude attenuation of the output A.C. component and an output phase shift is obtained. Such a discriminator has a bandwidth of approximately 0.7 of the bandwidth of the individual filters at the modulating rate, and the slope of the attenuation curve is eventually 12 dbs. per octave.
Patent GB-916800-A (GB)
Title: Process for removing boron compounds from silicon halides
IPC: C01B33/08
Filed: 1959-08-07
Abstract: Boron compounds, e.g. BCl3, are removed from silicon halides or halogenosilanes, e.g. SiCl4 or HSiCl3, by contacting liquid or gaseous silicon halides or halogenosilanes or solutions thereof in an inert organic liquid with an acid or mixture of acids which are not solvents for these halides or solutions thereof and contain at least one anthraquinone and/or at least one substitution product of an anthraquinone dissolved therein.  Anthraquinones or their substitution products include carmine, carminic acid, tetrahydroxyanthraquinone, 1,11-dianthrimide, 4,41-1,11-dichloroanthrimide, and 4,41-1,11-dibromoanthrimide, particularly alizarin or quinalizarin, advantageously employed in amounts 0,01-10% wt. in the acids or acid mixture.  Acids include, sulphuric, phosphoric and chlorosulphonic and are preferably as anhydrous as possible. A mixture of sulphuric acid and phosphoric acid preferably in equal parts by volume is preferred.  Purification may be carried out, for example, by direct contact of the liquid silicon halide or a solution of the solid halide in chloroform or carbon tetrachloride with the acid or mixture of acids in a separating funnel at preferably below 20 DEG C.  Gaseous halides or vapours of volatile halides may be contacted in countercurrent with the acid or mixture of acids preferably heated to above the boiling point of the halide to be treated in a column packed with filler bodies. Acid or acid mixtures may be purified and returned to the process.
Patent GB-318863-A (GB)
Title: Improvements in hydraulic presses
IPC: B30B9/04
Filed: 1929-09-06
Abstract: 318,863. Lehmann, J. M., [Firm of]. Sept. 10, 1928, [Convention date]. Platen presses.-In a hydraulic piston press used for extracting fat from cocoa &c., the cylinders 1, containing the material to be pressed, each have within them a piston 2, which is forced upwardly by a follower 3, within the base of which is a bar 9 replacing the wedges used in earlier presses. The bar 9 forms an abutment for the heads of two levers 10 provided with fulcra moving in a seating 12 and mounted in a block 11 carried in a vertically sliding hanger 13, which engages the cylinder 1 immediately below. Springs 15 urge the hanger 13 upwards, tending to press the follower 3 against the cylinder 1 below it. In operation, the cylinders, charged with the raw material, filter plates 6, 8, and strainers 5, 7, are brought into contact with the followers 3 by the springs 15, the levers 10 being raised, and the material is pressed by raising a ram. After pressing, the ram descends and the cylinders are separated from their followers by depressing the ends of levers 10 by means of tappets 17 on rods 18, the heads of which form plungers in hydraulic cylinders. The compressing springs 15 may be replaced by extending springs raising the levers 10.
Patent GB-977434-A (GB)
Title: Improvements in variable-ratio toothed gearing mechanisms
Inventor: MERRITT HENRY EDWARD
IPC: F16H55/08
Filed: 1962-07-17
Abstract: 977,434. Toothed gearing. MERRITT & CO. (ENGINEERING) Ltd. Sept. 25, 1963 [July 17, 1962], No. 27411/62. Heading F2Q. In a variable ratio toothed gear mechanism a circular driving pinion 1, concentrically mounted and having all its teeth identical, meshes with a rack or sector 2 having at least one group of teeth of progressively varying form and pitch. In a vehicle steering gear, a rack has a central section 2 with teeth 3 at a minimum pitch, end sections 2a with teeth 8 at a maximum pitch, and transition sections 2b having progressively varying tooth pitch. At sections 2a the straight sided teeth 8 have a larger contact angle than the teeth 3 at section 2, so that the effective pitch circle 10 of the pinion 1 when meshed with section 2a is of greater diameter than the effective pitch circle 4 of the pinion when meshed with section 2. At sections 2b, the rack pitch line 12 is not linear, and the pitch line 11 of the pinion is not circular, the rack being accelerated when these sections pass under the pinion. A method of constructing the profiles of the transition teeth is described. The pinion 1 may be driven directly by a hand wheel, or through reduction gears which may themselves be of variable ratio, and a servo mechanism may be combined with the gearing mechanism of the invention.
Patent GB-385682-A (GB)
Title: Improvements in or relating to protective systems for ljungstrom generator sets
IPC: H02H7/06
Filed: 1931-10-02
Abstract: 385,682. Protective cut-out arrangements. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Oct. 2, 1931, No. 27465. Convention date, Oct. 20, 1930. [Class 38 (v).] In the protection against fault on one of the generators of two parallel-connected generators (as in Ljungstrom generator sets) the compensating current, which circulates between the generators on fault in one of them, energizes one winding of a wattmeter-type relay, the other winding being energized by the generated voltage or by the load current. By the use of a wattmeter relay incorrect operation at starting, and before synchronism is avoided, and especially by using induction type wattmeter relays in which the torque is not appreciable until the currents almost reach the working frequency. Where the total load current is used in the wattmeter relay its action is made more sensitive with increase of load and where the generated voltage is used it is made independent of the load and yet dependent on the generators having been first run up to speed. In the arrangement shown in Fig. 1, differential protection is provided for by the differential relay 14 which receives energy from the three balancing current transformers 6, 7, 12 in similar phases of each generator A, B and of the load circuit, respectively. According to the invention, one coil of the wattmeter relay 15 receives current from an auxiliarv current transformer 10 in the balancing circuit between the transformers 6, 7. The other coil is connected between the mid-point of 10 and the transformer 12, the circuit being completed by the lead 13 so that this coil of the relay receives a measure of the total current supplied by the set. The relay has a central off position and, at starting, moves ineffectively around this position owing to time-lag action but on fault moves in one direction or the other to trip out the main circuit-breaker 4 and give a signal. In a modification, Fig. 2 (not shown), the second coil of the relay is energized by the output voltage.
Patent GB-603258-A (GB)
Title: Improvements in and relating to magneto magnetic circuits
IPC: H02K21/38
Filed: 1945-10-19
Abstract: 603,258. Ignition magnetos. JACK & HEINTZ, Inc. Oct. 19, 1945, No. 27507. Convention date, Nov. 15, 1944. [Class 35] In a magneto having a pair of stator elements 4, 5, each comprising two polepieces of the same polarity 10, 12 and 11, 13 respectively, a single winding 2 embraces one leg of.each stator element and the flux in the coil is reversed by the rotation of an inductor rotor 3 cooperating with the poles. With the rotor position as shown, the magnet 1 forces the flux round poles 11 and 12 but when the rotor moves through half a tooth-pitch poles 10 and 13 are used and the flux in the coil is reversed.
Patent GB-265279-A (GB)
Title: Improvements in or relating to electric heaters
IPC: F24H3/00
Filed: 1925-11-02
Abstract: 265,279. Peard, O. L., and Harrison, A. F. Nov. 2, 1925. Electric sloves.-Various constructions are described embodying tubular or flat heating units arranged in casings through which air may circulate. The heating units are of particular construction and operate at about 200‹ F. A fan may be employed to assist the air circulation. The casings may be made partly of wood. The heating units may be controlled by thermostatic and time switches. A bowl fire or luminous heaters as described in Specifications 13334/11 and 21854/12 may be combined with the stove.
Patent GB-235084-A (GB)
Title: An improved appliance for coating and polishing floors
IPC: A47L13/29
Filed: 1924-11-18
Abstract: 235,084. Allen, A. F. Nov. 18, 1924. Pivoted handles. - In a floor-polishing appliance of the type comprising a handle a carrying a pivotally-mounted pad formed with two operative surfaces g, h at an angle to one another, the pivotal connection between the handle and the pad is such that its position varies according to the operative surface employed. The pad f is carried by a block e provided with angle-brackets o which are formed with slots r to receive the pivot-pin s on which the handle a is adapted to turn. When applying polish to the floor the appliance is held in the position shown in Fig. 2, the pin s falling downwardly to its limit of travel in the slots r and the extension c of the handle a bearing against an angle-iron k on the pad f. Fig. 3 shows the position of use when the floor is being polished, the pivot-pin s being seated at the bottom of the slots r. Specification 212,418 is referred to.
Patent GB-1338030-A (GB)
Title: Method and apparatus for cutting carpet tiles
IPC: D06H7/00
Filed: 1971-06-12
Abstract: 1338030 Cutting-out carpet tiles SIDLAW INDUSTRIES Ltd 7 June 1972 [12 June 1971] 27636/71 Heading B4B An apparatus for cutting-out tiles from a pelt of carpeting comprises a base-plate 2, a presser plate 3 actuable to press the pelt of carpeting on to the base-plate and cutters actuable when the pelt is held on the base-plate to cut round the entire periphery of a carpet tile. In order to facilitate the adjustment of the depth of cut of the cutters 4, a sheet of resilient material, e.g. Neoprene, is placed between the pile and a support frame 7. The surface of the base-plate and/or presser plate is provided with an abrasive coating in order to prevent slipping of the tile during cutting. A number of tiles may be cut from a single pelt by applying a corresponding number of cutters to the pelt.
Patent GB-398649-A (GB)
Title: Improvements in or relating to wallboard
IPC: E04B1/94
Filed: 1932-10-05
Abstract: 398,649. Compound wall slabs ; deadening sound. HURDEN, E., The Gables, Harefield, HURDEN, A. P., Bodwen, Green Lanes, Northwood, both in Middlesex, and BEESON, S. E., Rosemary, The Cloisters, Rickmansworth. Oct. 5, 1932, No. 27672. [Classes 20 (ii) and 87 (i).] Wallboard comprises a sheet A of asbestos cement to which is attached a facing of fibrous material B with an intermediate sheet of fibrous material C which is corrugated or indented to form numerous air cavities, the resulting board being fireproof and having sound deadening properties. The fibrous material may be paper, cardboard or the like, or the material used for making suit-cases, and the sheets A, B, C are preferably united by waterproof glue. The inner surfaces may be treated with vermin-proof disinfectant, and the side edges of the board sealed. Specifications 6573/14, 180,320, [both in Class 87 (i), Bricks 8,c.], and 382,325 are referred to.
Patent GB-242649-A (GB)
Title: Improvements in apparatus for mechanically cleaning the seats of water closets
IPC: A47K13/30
Filed: 1925-11-04
Abstract: 242,649. Weill, R. Nov. 8, 1924, [Conve ntion date]. Closet seats; closets, disinfecting.-In order to clean the seat after use, a cord 27 is pulled, closing a switch 26 controlling an electric motor 22, which rotates the sea.t 5 through a worm-wheel 6 and pinion 4. A shaft 8 carries a plate 7 housed in a casing 2 and provided with washing and drying members 9, 10, 11 and a cam-disc 12 which co-operates with rollers 13, 14 on the pinion 4 in such a way that each member is in contact with the seat for one revolution. A spring-pressed locking pin 15 is released from recesses 16 to allow of rotation of the cam-disc 12 by the engagement of a stop 17 with a lever 18. When the cam-disc 12 has made a complete revolution, a projection 31 thereon engages a locking pawl 28 to release the switch 26. The washing member 9 is in the form of a brush with holes to supply water from a passage through the shaft 8, Fig. 4, in the operative position of the brush. The drying members 10, 11 are formed of a number of rubber strips 34<1> cut to the shape of the seat and preferably arranged obliquely, and a rubber strip 34 is also attached at one side of the brush 9. The plate 7 may be provided with a cloth soaked in disinfectant and arranged to come into operation after the brush 9. If the seat is oval, the rubber strips 34<1> are mounted in a sliding frame 37, Fig. 7 which has a roller 39 constantly pressed against the seat support 42. The edge of the seat is cleaned by scrubbers 43. Specification 219,668 is referred to.
Patent GB-363389-A (GB)
Title: Improvements in or relating to motor control systems particularly applicable to elevators
IPC: B66B13/22
Filed: 1930-09-17
Abstract: 363,389. Lifts. IGRANIC ELECTRIC CO., Ltd., 147, Queen Victoria Street, London.-(Cutler-Hammer Manufacturing Co. ; Milwaukee, Wisconsin, U.S.A.). Sept. 17, 1930, No. 27764. [Class 78 (ii).] Electric plant.-In a lift system controllable by a switch or switches 30, 31, 32 on the cage and also by switches 33, 34, 35, located at each of a plurality of landings, the landing switches are rendered inoperative from the moment a door is opened to give ingress to a passenger until the moment a door is closed after egress of said passenger. The winding 47 of an interference preventive relay R3 is connected in series with a number of switches 44 which close when the landing doors are closed, and with a switch 43 which closes when the cage door is opened. Normally closed contacts 45 are opened, and normally open contacts 66 in shunt with the switch 43 are closed when the relay 47 is energized.
Patent GB-902563-A (GB)
Title: The production of compounds of heavy metals with organic residues
Inventor: MILTON REGINALD FRANK
IPC: C05D9/02
Filed: 1957-09-03
Abstract: Metallic complexes are prepared by subjecting seaweed to hydrolytic degradation to form a water soluble degradation product and heating the hydrolysis product with a heavy metal oxide, hydroxide or salt. Typical metal complexes are those of cobalt, nickel, iron, zinc, manganese and copper.  The hydrolysis is usually effected with alkaline or acid agents with the assistance of heat and/or pressure. If the hydrolysis of the polysaccharide material is effected in the absence of alkali, the metal oxides, hydroxides or salts may be present during the hydrolysis, complex formation taking place contemporaneously with hydrolysis.  If the hydrolysis is effected with alkali, it is necessary to neutralize the degradation product before adding the metal compound.  Heat and/or pressure may assist in complex formation.  The complexes are useful in remedying trace element deficiency in soil or plants.
Patent GB-646989-A (GB)
Title: Improved method for producing cast irons
Filed: 1947-10-17
Abstract: Cast iron having a carbon content between 5 per cent and 40 per cent of its total weight is produced by placing pig or cast iron in contact with finely divided carbon and producing ultra-sonic or near ultra-sonic vibrations in the mixture while the iron is in the molten condition.  The carbon may be placed in the bottom of a high frequency induction furnace with the cast iron on top so that on melting the iron passes downwards through the carbon.  A magnetic flux of frequency within the highest octave of audible frequency may be used, e.g. 10,000 cycles per second, or a core of high melting point metal may be inserted into the melt to transmit vibrations from a magneto-striction or electro-striction oscillator operating at a frequency of at least 50,000 cycles per second.  The carbon may be replaced by silicon carbide.