baber/WOPTO huggingface dataset:
Patent GB-1152833-A (GB)
Title: Improvements in or relating to the Measurement of a Variable
Inventor: GUY GRAHAM DAVIDSON
IPC: G01K7/32
Filed: 1966-04-27
Abstract: 1,152,833. Telemetering. ENGLISH ELECTRIC CO. Ltd. April 26, 1967 [April 27, 1966], No.18446/66. Heading G1N. In apparatus for measuring a variable on a rotating body, power from a crystal oscillator mounted on a non-rotating part is transferred through a tuned transformer to provide an A. C. input for a measuring bridge 20 on the rotating body and the output of the bridge is connected into a frequency modulated A.C. and transferred through a capacitive coupling 24 to an indicating system on the non-rotating part. In the embodiment described with reference to Fig.1, one of the resistances in bridge 20 is a strain gauge. In another arrangement, described with reference to Fig.2 (not shown), eight bridges (20) each contain a temperature measuring resistance and their outputs are connected to the capacitive coupling (24) via a time division multiplex system comprising three oscillators of different frequencies on the non-rotating part, connected via a sequence switch (34) and a capacitive coupling (37) to a scanner switch (30) on the rotating part. The scanner switch may be between the bridges and a common voltage-to-frequency converter, or each bridge may have its own converter in which case the scanner switch is between the converters and the capacitive coupling (24). Eight indicators each show the value of temperature last measured by their respective bridges. An over-ride control may be provided to enable a bridge to be selected for continuous monitoring. Alarms may be provided.
Patent GB-226158-A (GB)
Title: Improvements in and relating to the manufacture of transmission chains
IPC: B21L9/00
Filed: 1924-08-01
Abstract: 226,158. Rogers, F. H., (SÚbin et Cie, M.). Aug. 1, 1924. Chains.-The pins a of driving-chains &c. are secured in the link plates b, which are of the same hard metal as the pins, by inserting their ends into holes of exactly the same diameter and expanding them therein by punching with a ball or punch applied to the centre e.
Patent GB-734939-A (GB)
Title: Arrangement for the generation of brief supersonic impulses
IPC: B06B1/02
Filed: 1952-07-22
Abstract: 734,939. Ultrasonic inspection apparatus. SIEMENS-REINIGER-WERKE AKT.-GES. July 22, 1952 [July 27, 1951], No. 18514/52. Class 118 (2). [Also in Group XL (c)] An ultrasonic pulse generator for use in flaw detection or gauging comprises a self-excited pentode oscillator V3 coupled to a crystal transducer Q via a tuned amplifier V4, the oscillator being normally cut off and being keyed on by differentiating at C1, R1 a triangular pulse from source J, the negative squarewave portion of the resultant waveform being selected and inverted by the triode V1 and applied via a cathode follower V2 to the screen grid of the oscillator V3. The pulse duration, which may be controlled by adjusting R1, is preferably of the same order of magnitude as the period of the oscillations generated by V3 and the steepness of the leading and trailing edges is increased by suitably biasing V4.
Patent GB-823375-A (GB)
Title: Improvements in or relating to bolt type fasteners
Inventor: LOVE JOHN
IPC: E05C1/06
Filed: 1955-06-27
Abstract: 823,375. Sliding bolts. K.A.C. Ltd. June 27, 1956 [June 27, 1955; Aug. 2, 1955], Nos. 18525/55 and 22214/55. Class 44 A bolt type fastener comprises a housing 1 adapted for attachment to the structure on which the fastener is to be used, a bolt 13 mounted for longitudinal sliding. movement in the housing, an operating lever 23 through which the bolt may be actuated, the lever being pivoted relative to the housing and also capable of being stowed wholly or mainly in the housing when not in use for operating the bolt, catch means for releasably securing the lever in the stowed position and means for partially projecting the lever from the housing when the catch means is operated to release the lever. As shown the operating lever 23 operates, with lost motion, a toothed sector 19 which engages a toothed tail portion of the bolt 13. The periphery of the sector follows a spiral path and the tail portion of the bolt is inclined. The lost motion between the lever 23 and the sector 19, which is provided by a recess defining abutments 24 and 25 for the pivoted end of the. lever, allows the latter to be partially projected from the housing by a spring loaded finger-operated latch lever 27. Thereafter the lever 23 may be operated directly to withdraw the bolt 13 from a keep 7. The keep is adjustably mounted on an attachment bracket 10 for mounting in one of the parts to be fastened together and includes a tongue 8 which engages a recess 5 and a guide 6 for the bolt 13 and is provided with a hole 9 for the bolt. Inward movement of the lever 23 is limited by a stop pin 26. In a modification, Fig. 4 (not shown), the latch lever is provided with an arm which when the latch lever is operated engages the underside of the lever 23 to positively force the latter outwardly of the housing. Also, in this modification the sector is of part circular form and the co-operating teeth on the bolt tail are arranged along a rectilinear surface of the bolt tail. In another arrangement, Fig. 5 (not shown), the operating lever operates a freely rotatable toothed pinion which engages a rack on the bolt tail and a fixed rack lying parallel to the bolt tail.
Patent GB-276805-A (GB)
Title: Improvements in and relating to road surface markings for the control and guidance of traffic
IPC: E01F9/07
Filed: 1926-07-26
Abstract: 276,805. Universal Rubber Faviors (Manchester 1923), Ltd., and Gaisman, L. July 26, 1926. Surface markings.- Road - surface markings for traffic guidance are formed of flexible, upstanding fins or blades c arranged transversely or at an inclination to the line of traffic, to give improved visibility. The fins, which are preferably formed integral with the rubber caps of the paving blocks, are wedge-shaped in cross section and rise from the rubber caps, as shown in Fig. 3 or Fig. 8. Each fin may be in the form of a row of pins, Fig. 6, and the fins. may be combined with raised circular marking studs d, Fig. 10, the fins in some cases being formed integral with such studs.
Patent GB-313961-A (GB)
Title: Improvements in driving the cam shaft of internal combustion engines
IPC: F16H7/08
Filed: 1929-06-17
Abstract: 313,961. Krupp Germaniawerft Akt.- Ges., F. June 20, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Valve gear; regulating.- In tensioning - arrangements for the chain drive of the cam shaft, disturbance in the, timing of the shaft is avoided by tightening both sides of the chain. Fig. 1 shows the cam shaft C driven by helical gearing L, M and by chain gearing D which is provided with a pair of tightening - pulleys H, J carried by a lever G adjustable by a screw K. The pulleys H, J are so adjusted in slots, g<2>, g<3> in the lever G that the timing of the cams is not altered when the chain is tightened. On the other hand, the cam shaft may be adjusted angularly to vary the timing, by altering the position of the pulleys H, J in their slots.
Patent GB-1349504-A (GB)
Title: Non-woven fabrics
IPC: D04H5/04
Filed: 1972-04-21
Abstract: 1349504 Non-woven fabric RHONE-POULENC TEXTILE 21 April 1972 [26 April 1971] 18602/72 Heading D2B A non-woven fabric made from wet-laid fibres bonded together by less than 30% by wt. of a chemical binder is characterised by the fact that from 5-80% by wt. of the fibres are spirally crimped side-by-side composite fibres of 10-40mm length and 1-20 dtex. The remainder of the fibres may be natural e.g. wood pulp, cotton; chemically modified natural e.g. rayon; or synthetic fibres. The binder may be a latex e.g. an acrylic latex and it may be added both before and after formation of the fabric (see Example 1). The composite fibres may be made from polyesters, polyamides, polyolefins, acrylic, or modacrylic polymers. The crimp may be developed after wet-laying of the potentially crimpable fibres by appropriate heat treatment.
Patent GB-770510-A (GB)
Title: Improvements in alkylhalopentenyl sulfides
Filed: 1955-06-28
Abstract: The invention comprises compounds of the formula RSCH2CH2CH=CHCH2X, in which R is alkyl of 1-18 carbon atoms and X is Cl or Br, and a method of obtaining them by the action of compounds of the formula RSCH2X on butadiene, optionally with Friedel-Crafts catalysts and solvents.  In examples butadiene reacts with methylchloromethyl sulphide and the corresponding butyl, octyl, dodecyl and octadecyl chloromethyl sulphides to give the corresponding alkyl chloropentenyl sulphides.  Other alkyl groups specified include isobutyl, isooctyl, nonyl, decyl, and tetradecyl.  Products specified include:-C8H17SCH2CH2CH=CH.CH2Cl, C9H19SCH2CH2CH=CHCH2Cl and C12H25SCH2CH2CH=CH.CH2Cl.
Patent GB-613344-A (GB)
Title: Unspillable electric accumulator
IPC: H01M2/12
Filed: 1946-06-21
Abstract: <PICT:0613344/IV(a)/1> A storage battery is provided with a device to prevent the escape of electrolyte through the gas vent 4 when the battery is inverted, comprising two finely perforated plates 1, 2 enclosing between them a layer 3 of a liquid polymerized silicone which is heavier than the electrolyte.  The plates may be made of glass, ceramic material, artificial resin, &c. and may be treated with a water-repellent substance, for example alkylchlorosilane or a halogenated organic compound of silicon.
Patent GB-374650-A (GB)
Title: Improvements in rotary internal combustion engines
IPC: F02B53/00
Filed: 1931-06-30
Abstract: 374,650. Screw propellers. SCHULMAN, H., Tidmarsh Manor, Pangbourne, Berkshire. June 30, 1931, No. 18887. [Class 114.] A screw propeller 28, which is combined with a rotary internal-combustion engine of the intermittent - abutment type, is hollow. Exhaust gases flow through the blades and out through holes 29 in the blade tips.
Patent GB-1082752-A (GB)
Title: Cardiac pacemaker
Inventor: WEINMAN JOSEPH
IPC: A61N1/372
Filed: 1964-05-06
Abstract: An implantable cardiac pacemaker includes a magnetic reed switch located between the electrode leads, in one electrode lead, in the power supply lead or in the circuit so that by the application of an external magnetic field, e.g. produced by a p  strong bar magnet, the pacemaker may be switched on or off or the pulse supply to the electrodes may be broken.
Patent GB-1397015-A (GB)
Title: Antistatic agents
IPC: D06M101/16
Filed: 1973-04-19
Abstract: 1397015 Alkoxylated carbonamides and sulphonamides BAYER AG 19 April 1973 [21 April 1972] 18954/73 Heading C2C [Also in Division C3] Antistatic compounds of the formula wherein m denotes an integer, n is 1 or 2, R denotes H or methyl, R 1  denotes aryl or straight or branched alkyl, X denotes -CO- or -SO 2 -, B denotes C 1-2  alkylene or an arylene radical of the formula R 2  denotes H, F, Cl, Br or alkyl, R 3  denotes H, NH 2 , NO 2 , CN, CF 3 , Cl or a radical of the formula A<SP>1</SP> denotes R 4 O-, (R 4 ) 2 N-, R 4 COO-, R 4  denotes alkyl, aryl, alkylaryl or arylalkyl, R 5  denotes straight or branched chain alkylene, A denotes A<SP>1</SP> or R 4 -N =, and Y denotes aryl, straight or branched alkyl or, when n is 1, a group of the formula are prepared by reacting a polyether diol or alkoxylation product of the formula (wherein M denotes an alkali metal) with a compound of the formula Hal-B-X-N(R 1 )Y (wherein Hal denotes F, Cl or Br) in the absence of moisture. The value of m is preferably from 1 to 150. If desired nitro groups in the reaction products may be subsequently reduced to amino groups by hydrogenation. The above antistatic agents may be added to dimethylformamide solutions of acrylonitrile further containing sodium methallylsulphonate and either methylacrylate or vinylidene chloride, from which threads having reduced surface resistance may be spun.
Patent GB-535690-A (GB)
Title: Improvements in electrical musical instruments
IPC: G10H3/10
Filed: 1939-06-29
Abstract: 535,690. Electrical musical instruments. MIDGLEY. A. H., and MIDGLEY, A. M. June 29, 1939, No. 19002. [Class 88 (ii)] [Also in Group XXXV] In electrical musical instruments wherein electrical vibrations or an undulating potential of controlled frequency and wave form are produced electrostatically and converged into sound waves, a set of key-charging switches o controls each of two sets 'of generators, one, a, for fundamental tones and the other, b, for tones rich in harmonics, and each set of key charging-switches is combined with means for giving desired attack or dieaway to a note produced by depression of a key. Each key charging-switch is associated with two contacts, one a supply bus-bar p to provide in the normal position of a key for the charging of a supply condenser o<SP>2</SP>, and the other a key changing-contact m whereby, on depression of the key, the condenser o<SP>2</SP> is connected with the generator corresponding to the key depressed. The charging potential of the condenser, o<SP>2</SP> (and, therefore, the charging potential to the corresponding generator) may be varied by potentiometers p <SP>2</SP>, o<SP>6</SP>, the movable contact p<SP>1</SP> of the " attack " potentiometer p<SP>2</SP> being connected to the bus-bar p and the movable contact o<SP>5</SP> of the " delay " potentiometer o<SP>2</SP> being connected to the switch o. When a key is released or is in normal position a switch h connects to earth the generator corresponding to the key. A sustaining pedal l is provided for disconnecting the switches h from earth so that a note may be sustained even after release of the corresponding key. Tremulant effects for each note are produced by vibrating reeds r, s<SP>1</SP>, the speed of vibration of which is progressively increased the higher the note. Each generator may be generally on the lines of that described in Specification 501,520, the generator a having stationary electrodes with rings of sine-wave form to produce undulating potentials of pure sine-wave form, and the generator b having stationary electrodes with rings undulated in angular or other shape to produce a saw-tooth wave form. Or both generators may produce a pure sine-wave and the output of each generator be taken to a separate input valve of the pre-amplifier t<SP>2</SP>; the valve for the generator b is biassed to cut off and the waves in the anode circuits of the two valves are mixed.
Patent GB-777183-A (GB)
Title: Improvements in or relating to corrosion inhibitors
Inventor: HANCE FRANCIS E
IPC: C23F11/18
Filed: 1955-07-01
Abstract: A herbicidal composition comprises a herbicide such as sodium trichloroacetate or phenyl mercuric acetate and a substance which inhibits corrosion of metal, for example, steel, copper, aluminium or zinc with which the herbicide comes into contact, the inhibitor consisting of a mixture of sodium tripolyphosphate and sodium chromate.  In an example, to 100 gallons of a solution containing 22 pounds of 90 per cent sodium trichloroacetate is added 1 gallon of inhibitor solution containing 0.5 pounds of sodium tripolyphosphate and 2 pounds of sodium chromate.  This composition is diluted to about 1,000 gallons before use.
Patent GB-566676-A (GB)
Title: Improvements in or relating to steel sleepers
IPC: E01B3/16
Filed: 1943-11-17
Abstract: 566,676. Railway sleepers. FITZMAURICE, G. G., and HULL, F. J. K., [Representatives of SANDBERG, C. P.], and GRAHAM, A. J. W. Nov. 17, 1943, No. 19192. [Class 104 (ii)] A metal sleeper has lugs c punched out of it to form a chair, and each lug has welded &c. to it an extension d, one of which engages the rail web, while the other engages the key j. Ribs h may be formed on the top of the sleeper to strengthen the lugs, and similar ribs g may be formed on the undersurface. The rail may be seated on an inclined upward pressing f of the sleeper.
Patent GB-440958-A (GB)
Title: Improvements relating to conveyors
IPC: A21C15/00
Filed: 1934-06-29
Abstract: 440,958. Endless - belt conveyers. BEATTIES BISCUITS, Ltd., Drumchapel, Glasgow, and STROUD, A. W., Bankell, Milngavie, Stirlingshire. June 29, 1934, No. 19205. [Class 78 (i)] [See also Group VI] Biscuits are stacked on edge and in longitudinal rows A<2> on a feed conveyer 11 which overlaps and is driven at a slower speed than the main conveyer 10 so that the biscuits automatically fall from the feed conveyer on to the main conveyer and lie flat thereon for further treatment, for example coating with chocolate. The biscuits are transported to the feed conveyer by means of the receptacles described in Specification 441,001.
Patent GB-659016-A (GB)
Title: Improvements in ball and float valves
IPC: F16K31/26
Filed: 1949-07-22
Abstract: 659,016. Grinding-in valves. MILNER, J. B. July 22, 1949, No. 19283. [Class 60] [Also in Group XXIX] In a cistern supply valve, the end of the float lever 6 is bifurcated and engages a peripheral groove 4 in the valve plunger 3 which can be manually rotated at any time by external means such as the shank 7 to grind the valve closure surfaces. The latter are preferably of metal and are formed on a renewable inlet nozzle 1 and a conical plunger end 2 which is also renewable. The shank 7 may have a squared end or may have a wheel or radiating arms attached thereto.
Patent GB-1283194-A (GB)
Title: Improvements in or relating to cooling apparatus for fluids
Inventor: KOMEDERA MIECZYSLAW
IPC: F25D31/00
Filed: 1969-04-15
Abstract: 1283194 Cooling liquids. MK REFRIGERATION Ltd 13 April 1970 [15 April 1969] 19300/69 Heading F4H Liquid to be cooled is passed through a coil 20 which, together with a refrigerant evaporator 19, is immersed in water W, the refrigeration apparatus which feeds the evaporator being operable independently of a stirrer in the water. The stirrer may, as illustrated, be a circulating pump 27 or may be a rotary stirrer driven by a motor mounted outside the water tank 17. Separate manually operated switches are provided, Fig. 1 (not shown), for supplying power to the refrigeration apparatus and to the stirrer. In operation, the stirrer is not switched on until an adequate ice-bank has built up on the evaporator. The stirrer is then automatically switched on or off according to the temperature of the product entering the coil 20. The refrigeration apparatus is operated automatically in response to signals from a temperature senser to maintain an ice-bank of constant thickness. Lower and upper pipes 23 and 24 leading to the water tank are connected by a flexible tube 25 whose upper end may be disconnected and connected to a water supply when the tank is to be filled. The liquid to be cooled may be beer, a soft drink, or oil.
Patent GB-704071-A (GB)
Title: Improvements in or relating to electrical control systems
Inventor: FRANKS CLIFFORD VIRGIL
IPC: G05F1/34
Filed: 1950-08-02
Abstract: 704,071. Control of D.C. motors. BROWN. W. J. Aug. 31, 1951 [Aug. 2, 1950], No. 19302/50. Class 38(3) [Also in Group XXXV] In an automatic speed control system for a D.C. motor supplied from a grid controlled rectifier, the armature current is limited by measuring the voltage drop across a tungsten filament lamp carrying the A.C. or the D.C. current. The speed of motor 55 is controlled by phase shift control of the rectifier 65, 66 in accordance with motor armature voltage and current as disclosed in Specifications 656,778 and 686,799, and the armature current is limited by passing it through a pair of tungsten filament lamps 56, 57 and comparing the total voltage drop across the lamps with a reference voltage tapped off a potential divider 58 (supplied from an auxiliary rectifier 60). If the voltage across the lamps exceeds the reference voltage, rectifier 62 conducts to energize an auxiliary winding 63 on a saturable reactor forming part of the phase shifting network and so reduces the rectifier output. It is stated that the current of a series motor, the speed of which is controlled as disclosed in Specification 697,609 may be limited by connecting the lamp in series between the armature and field, comparing the voltage drop with a reference voltage and controlling the rectifier accordingly. Specifications 656,816, [Group XXXV], and 656,817 also are referred to.
Patent GB-797073-A (GB)
Title: Method of treating seeds and living plants
IPC: A01N55/04
Filed: 1954-07-01
Abstract: A fungicidal and bactericidal preparation such as a dust, spraying or fumigating preparation comprises, in admixture with an auxiliary substance, an organic compound of tetravalent tin, preferably corresponding to the general formula <FORM:0797073/VI/1> in which R1 is an alkyl, aryl, aralkyl, halogenalkyl or cycloaliphatic radicle, which may contain as substituents up to five halogen atoms, or aliphatic or aromatic mono- or di-carboxylic acid radicles linked to the tin atom via the >C=O group, radicles linked to the tin atom via either the oxygen or sulphur atom of monohydric or polyhydric alcohols, ether-alcohols, phenols or thiophenols, or halogen or nitro derivatives thereof, and any or all of R2, R3 and R4 is a radicle identical with or different from R1, or is a halogen.  The organic tin compounds may be made up in powdered form with inert substances wetting or adhering agents, e.g. siliceous chalk, clay dust, kaolin, sulphite cellulose waste liquor, methyl-cellulose, or they may be dissolved in solvents and/or diluents, e.g. methanol, ethanol and/or emulsified with ionogenic or non-ionogenic substances, e.g. fatty alcohol sulphates, alkyl-phenols, and may also be used in conjunction with other fungicidal, bactericidal and/or insecticidal substances. Specifications 711,563, 756,091 and 760,056 are referred to.
Patent GB-191340-A (GB)
Title: Improvements in the construction of ladders
IPC: E06C1/12
Filed: 1922-07-14
Abstract: 191,340. Bayley, H. July 14, 1922. Ladders have the sides formed of single lengths of wood a lightened by apertures f, the strength being maintained by cross pins g placed between the apertures. The construction is shown applied to extension ladders.
Patent GB-830901-A (GB)
Title: Improvements in laminated thermoplastic polymeric materials
Inventor: DYER RONALD
IPC: B32B27/00
Filed: 1956-06-22
Abstract: 830,901. Ultra-violet filters. IMPERIAL CHEMICAL INDUSTRIES Ltd. May 27, 1957 [June 22, 1956], No. 19394/56. Class 97(1) [Also in Groups VIII, XV and XXVIII] A process for laminating together solid laminae of a thermoplastic material produced by the polymerization of one or more polymerizable ethylenically unsaturated compounds is characterized in that in order to reduce discoloration due to exposure to ultra-violet radiation an ultraviolet absorber is incorporated in the external laminae on each surface of the laminate that is to be exposed to such radiation, and preferably in the surface laminae only, but not in all the laminae. If only one surface is to be exposed to ultra-violet radiation, .the ultra-violet absorber may be incorporated in that surface lamina only. The laminate may comprise flat sheets, or shaped or curved sheets or angled sections or tubes may be produced by laminating together laminae of suitable configurations. The polymeric material may be polyvinyl chloride or a copolymer of vinyl chloride with eg. vinyl acetate or vinylidene chloride, polystyrene, a styrene-acrylonitrile copolymer, or a butadiene - acrylonitrile copolymer. The ultra-violet absorber may be phenyl salicylate, resorcinol disalicylate, resorcinol mono- or di-benzoate, benzyl benzoate, stilbene, beta - methyl - umbelliferene, 4 - methyl - umbelliference benzoate, 2 : 4 - dihydroxybenzophenone, or 2 - hydroxy - 4 -methoxy - benzophenone.