baber/WOPTO huggingface dataset:
Patent GB-1470375-A (GB)
Title: Fault detector circuits for dynamo electric machines
IPC: G01R31/34
Filed: 1974-07-08
Abstract: 1470375 Protective arrangements ASSOCIATED ELECTRICAL INDUSTRIES Ltd 8 July 1974 [6 July 1973] 32265/73 Heading H2K In a dynamo-electric machine having a rotor and stator coupled, in operation, by a continuously rotating magnetic field, a fault detector circuit for detecting unbalance in the magnetic field comprises a pair of magnetic field sensing conductors, disposed on the stator in the path of the rotating magnetic field at positions spaced at 180 degrees electrical or an integral multiple thereof, each of which provides respectively an electrical signal whose magnitude corresponds to the magnetic field at the position of the coil, these signals being fed to a fault indication circuit responsive to the difference, above a threshold value, of the magnitudes of the individual conductor signals to provide a fault indication. A plurality of pairs of magnetic field sensing coils may be employed. The coils +A, -B of a pair are interconnected in series and their resultant output is fed to the fault indication circuit via a diode D1. To cancel any effect of asymmetry a second duplicate pair of coils - A, + B, is connected to the fault indication circuit, via a diode D2, with their resultant output in opposition respective to that of the first pair of coils. The output of diodes D1 and D2 are connected to a Schmitt trigger, the circuit being preset to a state in which the input level from either coil pair +A, -B, or -A, +B, is just below the threshold value of the trigger under normal operating conditions, and fault detected by one of the coils then triggers the circuit and capacitor C charges through resistor R2 in an integrating circuit until the voltage across the capacitor operates a monostable circuit 14 and thus relay RL1 with self-holding contacts RLla is energized to operate an alarm and switch off the supply to the dynamoelectric machine. The integrating circuit prevents surges operating the alarm circuit. As the Schmitt trigger responds to only one polarity of input signal it is fed from whichever of the pairs of duplicate coils +A, - B or -A, + B is providing the correct polarity, the diodes D1 and D2 preventing signals from one pair affecting the other.
Patent GB-1138792-A (GB)
Title: Improvements in cellular material and method for making
Inventor: BUTTS WILLIAM ROBERT
IPC: F01D11/12
Filed: 1967-07-13
Abstract: 1,138,792. Turbine and compressor blade tip sealing: axial flow compressors. GENERAL ELECTRIC CO. July 13, 1967 [Jan. 3, 1967], No.32321/67. Heading F1C and F1T. [Also in Division C7] A cellular material comprising bonded spherical hollow particles of Al alloyed with a metal which forms aluminides is formed by heating at 1600- 2200F. a mass of spherical coated metal particles consisting of a core of Al and a coating of a metal such as Fe, Ni and Co into which the Al will diffuse, the Al forming 5-30% by weight of each particle, the heating time being sufficient to allow the diffusion of the Al into the coating and thus form a hollow particle. The coated Al powder may be mixed with 5-35% by weight of a bonding metal such as Ni, Cu, Ag or their alloys and an aqueous binder of ammonium alginate may be added. The cellular material is used as a seal co-operating with rotating blades or wheels in axial-flow compressors of gas turbine engines and in this application the coated Al powder or the mixture of coated powder and bonding metal is added as a filler to a honeycomb of (Registered Trade Mark) "Hastelloy" X alloy heated to 1600-2200F.
Patent GB-380299-A (GB)
Title: Method for producing pocket clips for fountain pens and the like of double sheet metal
IPC: B43K25/02
Filed: 1931-11-23
Abstract: 380,299. Retaining pens in pockets. REICHENBACH, G., 7, Kaiser Friedrichstrasse, Pforzheim, Germany. Nov. 23, 1931, No. 32454. Drawings to Specification. [Class 43.] A pen clip is formed from rolled gold or other compound sheet metal by thinning the edges and turning them over so that the base metal is hidden. Compound sheets with fine metal on both sides may be used.
Patent GB-209105-A (GB)
Title: Improvements in or relating to high-pressure crude-oil internal combustion engines
IPC: F02B19/14
Filed: 1923-12-29
Abstract: 209,105. Sulzer FrÞres Soc. Anon. Dec. 30, 1922, [Convention date]. Cylinders receiving liquid fuel. - In solid injection' high pressure heavy-oil engines in which initial combustion occurs in a cooled subsidiary chamber g, a long passage e connects the chamber with the main combustion space a. The fuel is injected through the chamber g into the upper end of the passage e. The change in cross-section between the chamber g and the passage e is effected gradually.
Patent GB-428021-A (GB)
Title: Improvements in wheels, particularly for agricultural machines
IPC: B60K3/02
Filed: 1934-11-12
Abstract: 428,021. Vehicle wheels. DEUTSCHE ROHRENWERKE AKT.-GES., 69, Breitestrasse, D³sseldorf, Germany. Nov. 12, 1934, No. 32525. Convention date, May 29. [Class 144 (i)] A wheel, particularly for use on agricultural machines, comprises a cupped disc 1 with a flanged edge 2 on to which is shrunk, &c., a tyre 3 formed with circumferential and transverse tread ribs 4, 5 respectively. The tyre may be formed in one piece or in segments welded together end to end, and the disc is detachably secured to the hub 6 by bolts 7.
Patent GB-660220-A (GB)
Title: Improvements in, or relating to, scalp treating and massaging tools
IPC: A61H7/00
Filed: 1948-12-16
Abstract: 660,220. Hairdressing appliances. REITER, A. Dec. 16, 1948. [April 8, 1948; Oct. 1, 1948 ] Nos. 32530/48 and 32531/48. Class 131. [Also in Groups VI and XXIII] A scalp-treating and massaging tool, comprises an upper gripping portion and a lower operating portion and consists of a piece of resilient material formed with a row of straight teeth which are spaced apart lengthwise of the row, the width of each tooth lengthwise of the row being greater than the thickness. As shown the free ends of the teeth 1 may lie in an arcuate line, fitting the surface of the scalp, and may be provided with a centre groove. The gripping portion 2 may be reinforced by doubling over or by superposing strips of material. In a modified form, Fig. 11, which resembles a brush, teeth 1, punched from a strip of resilient material are secured, in rows, in a rigid back member 9.
Patent GB-137291-A (GB)
Title: Improved process for the manufacture of resin-like substances
IPC: C08G75/24
Filed: 1919-12-29
Abstract: Resinous compounds are prepared by the reaction of aromatic sulphochlorides upon the non-resinous condensation products of phenols with aldehydes, particularly phenol-alcohols.  According to examples:-(1) the cresol alcohol prepared from commercial cresol mixture and formaldehyde is dissolved in dilute caustic soda lye and treated with an equimolecular quantity of o- or p-toluene sulphochloride in benzene solution (2) commercial cresol mixture is condensed with formaldehyde in the presence of o- or p-toluene sulphochloride or benzene sulphochloride, and the product is dissolved in dilute caustic soda lye and treated with a benzene solution of toluene sulphochloride.  The products resemble natural resins and are soluble in benzene, acetone, &c.
Patent GB-874943-A (GB)
Title: Device for separating impurities from gases
Inventor: SPRAGUE FRANK
IPC: B03C3/36
Filed: 1957-10-18
Abstract: 874,943. Electrostatic precipitation. ELECTRO-STATIC AIR FILTER MFG. CORPORATION. Oct. 18, 1957, No. 32579/57. Class 39(1). [Also in Group XXVIII] The impurity outlet 30 of an electrostatic precipitator 20 in a compressed gas system is connected to a sump 34 positioned above the level of the impurity outlet, so that the sump is utilized as a gas storage chamber and as a receptacle for receiving the matter deposited in the precipitator without danger of its release on reverse flow of the gas incident to the dam and for gas at the receiver 44. The output of the variable source of compressed gas 10 is automatically varied to maintain a constant pressure in the system. The gas may be cooled in an after-cooler 16 and passed through a settling chamber 22 before entering the precipitator. The precipitator is of the type with alternately charged grids 24, as described in Specifications 834,096 and 873,625.
Patent GB-277843-A (GB)
Title: Improvements relating to tubular structures such as superheaters, water heaters, airheaters and the like
IPC: F22G3/00
Filed: 1926-12-28
Abstract: 277,843. Galloways, Ltd., and Pilling, H. Dec. 28, 1926. Bends.-A return bend or header f is secured to the ends of a pair of tubes a, a by a bolt d having forks at one end adapted for insertion through a clamping member e which seats upon the header and is retained in place by nuts g. The other end of the bolt carries a four-pronged saddle piece c which bears against sleeves or collars b on the pipes to be connected, the saddle piece having an aperture c<1> through which the rectangular head of the bolt may be inserted and side recesses c<2> with which it engages. A packing ring h, Fig. 3, having a conical or spherical face, may be provided between the bend f and each tube a.
Patent GB-647127-A (GB)
Title: Multi-stage axial flow fans
IPC: F04D19/02
Filed: 1945-12-05
Abstract: 647,127. Fans. WOODS OF COLCHESTER, Ltd., DALY, B. B., and BROWN, R. F. Dec. 5, 1945, No. 32911. [Class 110(i)] In an axial-flow fan having contrarotating impellers the driving torque in one direction of rotation is made substantially equal to that in the other, preferably by arranging that the two torques are reactions of one another. This may be achieved by drive from a single motor through differential gearing, for example through a driven planet-pinion carrier with planet pinions engaging a sun wheel on one impeller directly and a sun wheel on the other impeller through an idler gear, or by using two electric motors with identical fields and similar armatures connected in series; a simpler method is to make both armature and field of a motor freely rotatable and connect each to one of the impellers. In the embodiment shown, a squirrel-cage motor has its armature 5 carried on a shaft mounted in bearings in spiders 2 in a casing 1 and its field 9 mounted on bearings 6 on the shaft; the shaft carries impellers 14, 17 at its ends and the field structure carries impellers 15, 16 of opposite hand. The impellers are all similar, but the forms of the blades receiving rotating air may differ from the others; in a modification, the impellers 15, 16 are combined into one with large blades suitably designed. Reference has been directed by the Comptroller to Specification 399,619.
Patent GB-1270018-A (GB)
Title: Cysteine-containing peptides and their derivatives and a process for preparing them
IPC: C07K5/103
Filed: 1969-06-30
Abstract: 1,270,018. Cysteine derivatives; peptides containing cysteine. FARBWERKE HOECHST A.G. 30 June, 1969 [28 June, 1968; 31 July, 1968; 14 June, 1969], No. 32922/69. Heading C2C. Compounds of the formula where R is Me or Et, Z<SP>1</SP> is benzyloxycarbonyl, tert.-butyloxy carbonyl or adamantyloxycarbonyl and X is H or 2-nitrophenylsulphenyl are prepared by reaction of cysteine hydrochloride with # - [N - Z<SP>1</SP> - N - methyl - (or ethyl)]- aminoethyl isocyanate and thence into the 2- nitrophenylsulphenyl compound. Peptides containing one or more protected cysteine units of the formula are prepared by conventional methods using the protected cysteine. The peptides containing cysteine are prepared by reacting an appropriate protected cysteine peptide above with a strong acid to give a salt of a secondary amine of the formula and the salt is then treated with a base at room temperature, or if desired, at an elevated temperature. The following starting materials are prepared: N - methyl - # - alanine, Z - N - methyl - #- alanine #(Z - N - methyl) - amino ethyl - isocyanate, adamantyloxy carbonyloxy succinimide, BOC - N - methyl - # - alanine, #(Z - N- methyl)-amino ethyl isocyanate, N - 1 - adamantyloxycarbonyl - N - methyl - # - alanine and # - (N - 1 - adamantyloxycarbonyl - N - methyl)- amino ethylisocyanate.
Patent GB-866574-A (GB)
Title: Improvements in or relating to a method of packing growing plants or bushes
Inventor: BROOK DOUGLAS
IPC: B65B25/02
Filed: 1958-10-16
Abstract: 866,574. Packaging plants and bushes ; paper bags. BEES Ltd. Sept. 28, 1959 [Oct. 16, 1958], No. 32985/58. Classes 94(1) and 94(2). A method of packaging a freshly lifted plant or bush, comprises surrounding the roots with a damp material, for example moss, enclosing the roots and the damp material in a waterproof bag or sack, and placing the plant or bush with its roots so wrapped within an airtight or substantially airtight outer casing or bag containing a charge of carbon dioxide. The bag may comprise a transparent sheet material to the outer face of which is laminated a tear resisting paper, the paper lamination being omitted or removed where desired to form a window. The charge of carbon dioxide is introduced in solid form, and the plant or bush is pruned and waxed before being sealed in the casing or bag.
Patent GB-751467-A (GB)
Title: Improvements in or relating to apparatus for agitating liquids
IPC: B01F11/00
Filed: 1954-11-15
Abstract: 751,467. Liquid agitating apparatus. BRUTON, J. F. Jan. 26, 1955 [Nov. 15, 1954], No. 33037/54. Class 98 (2). [Also in Group XXIX] To maintain liquid in a state of agitation a dish 1 as of metal, plastic or ceramic material has two non-communicating vessels 2, 3 separated by partition 4, and a curved or ridged underside as at 9, and is balanced so that vessel 2, which may contain a photographic plate or print with developing, fixing or other liquid, is in a lower position until liquid introduced as by pipe 5 into vessel 3 causes the dish 1 to rock to the left as shown, at which point the liquid in vessel 3 runs to waste through notch 7 and the dish rocks to the right again, the sequence being continuous whilst liquid flows through the pipe 5. Vessel 3 may be used for washing the plate or print. Figs. 2-5, not slown, illustrate the rocking sequence and also forms of the dish 1 in which a plurality of non-communicating vessels as for separate liquids replace the vessel 2.
Patent GB-322862-A (GB)
Title: Improvements in flushing valves
IPC: E03D5/10
Filed: 1928-11-12
Abstract: 322,862. Roth, H. Nov. 12, 1928. Fluid-actuated valves.-In a flushing-valve of the type operated by a push button which closes the circuit of an electro-magnetically controlled actuating valve, the main valve 14 is raised by the water pressure acting on the underside of a piston 16 on the opening of the actuating valve 29, this allowing the balancing pressure on the other side of the piston to be released via the port 47 and pasasge 25 through the main valve. The actuating valve is secured to the bottom of an iron cylinder 31 which forms the core of a solenoid 37. The core is enclosed in a brass case 30 and is allowed a small amount of free movement, before it contacts with the top of its casing, to provide a hammer blow to raise the actuating valve from its seating when the solenoid is energized. The port 47 through which the pressure is released from the top of the piston is arranged in staggered relation to, and is larger than, the port 46 through which pressure water is admitted to the top of the piston. The energizing coil 37 is protected by a cylindrical cover 41 which is secured to the valve body by a gland cut 43 in a fluid-tight joint.
Patent GB-1140958-A (GB)
Title: Process for suppressing carbon monoxide reversion in iron ore reduction reactions
IPC: C21B13/00
Filed: 1966-07-22
Abstract: 1,140,958. Reducing iron ore. ESSO RESEARCH and ENG. CO. July 22, 1966 [July 30, 1965], No. 33135/66. Heading C7D. In a fluidized bed process for reducing oxidic iron ore with carbon monoxide-containing gas in which the latter has to be heated to a temperature within the range 800F. to 1500F. or heated through that range breakdown of carbon monoxide with deposition of carbon is suppressed by adding to the gas sulphur, hydrogen sulphide or a decomposable sulphur compound in such an amount as to provide a concentration of 1 to 1, 000 parts of sulphur per million parts of gas. Hydrogen sulphide is the preferred additive but many suitable organic compounds are listed. In a particular example spent reducing gases leaving a multi-stage reactor are cooled to remove water vapour, scrubbed to remove carbon dioxide, and, after the addition of hydrogen sulphide, reheated before being mixed with make-up gas produced by reaction of hydrocarbon gas with steam.
Patent GB-928020-A (GB)
Title: Electric discharge machine tools
IPC: B23H7/18
Filed: 1961-09-15
Abstract: 928,020. Automatic control systems. GENERAL MOTORS CORPORATION. Sept. 15, 1961 [Oct. 20, 1960], No. 33154/61. Class 38 (4). [Also in Group XXII] An electric discharge machine-tool comprises a cutting-tool 10 spaced from a workpiece 12, a circuit including a current source 20, an impedance 22 and a capacitor 24 for producing the discharges across the gap between tool and workpiece, and a circuit 36 shunted across the gap for limiting the gap voltage to a predetermined safe value. The circuit 36 includes an impedance 38, a silicon-controlled rectifier 40 and a potentiometer 44 adjusted so as to trigger the rectifier 40 to conduction at the maximum desired gap voltage level, e.g. 60V. In operation, if the supply voltage from source 20 rises so that the gap voltage tends to exceed 60 volts, rectifier 40 becomes conductive and more current flows through impedance 22 so that the gap voltage is maintained at the 60V level, any excess being dropped across impedance 22. It is stated that the arrangement permits a higher voltage source to be utilized while the gap voltage is maintained within safe limits, whereby the charging rate of the capacitor 24 and hence the frequency of the discharges, which frequency governs the rate of stock removal from the workpiece, is increased. The gap spacing is controlled in accordance with the gap voltage by a servo-system including a servomotor 28 for moving the tool 10 and a servo-amplifier 32 which compares the gap voltage with a reference voltage from source 34 and which has an output controlling the motor 28. A grid-controlled triode may replace the silicon-controlled rectifier 40.
Patent GB-1032468-A (GB)
Title: A safety device for use for a three-phase electrical system
Inventor: TAKAI HIROYUKI
IPC: H02H11/00
Filed: 1963-08-21
Abstract: 1,032,468. Control of A.C. motors. KITO SEISAKUSHO KABUSHIKI KAISHA. Aug. 21, 1963, No. 33169/63. Heading H2J. A safety circuit for starting a three-phase induction motor 3 in the correct direction comprises relay 2<SP>1</SP> for interchanging the supply connections to terminals Y, Z, the relay being de-energized or energized according to the phase sequence of the supply voltage. The coil 6 of the relay is energized by the vectorial sum of component voltages D, E, derived from phaseshifter R1, Co, and voltage divider R2, R3, respectively. In one condition, the voltages D, E, are balanced and the coil 6 is de-energized. With a different phase sequence, the coil 6 becomes energized to change-over the contacts C, C<SP>1</SP>. The circuit may be employed in a system for controlling a reversible motor for operating between limiting positions.
Patent GB-340683-A (GB)
Title: An improved horse shoe and pad
IPC: A01L1/04
Filed: 1929-11-01
Abstract: 340,683. Horseshoes. ORGAN, F. D., 4, Southfield Road, Oxford. Nov. 1, 1929, No. 33212. [Class 67.] An annular rubber pad C which bears against the concave or inclined inner face Bl of the shoe B is integral with a backing of canvas A clamped between the shoe and the hoof and has rear extensions C<1>, C<2> provided with pockets to take the cut-away and tapering heels B<2>, B3 of the shoe.
Patent GB-618810-A (GB)
Title: Improvements in ratchet wrenches
IPC: B25B13/46
Filed: 1946-11-08
Abstract: 618,810. Wrenches. RYFA, F. J., and RYFA, W. A. Nov. 8, 1946, No. 33214. [Class 61 (iii)] A spoke nipple wrench comprises two arms 6, 7. pivoted together at 9 and normally urged apart by a spring 10, one arm 6 having mounted in the forked end thereof a gapped ring 14 provided with a socket 15 to engage a spoke nipple and peripheral ratchet teeth 18 adapted to be driven by similar teeth 21 on a spring- urged rack 19 pivoted to the other arm 7; a spring- pressed pawl 25 holds the ratchet ring against reverse rotation.
Patent GB-814252-A (GB)
Title: Refrigerating means
IPC: F25D19/00
Filed: 1955-11-21
Abstract: 814,252. Refrigerators. CORHANIDIS, S. S. Nov. 21, 1955 [Dec. 16, 1954], No. 33250/55. Class 29 A chamber 1 is refrigerated by means of a portable refrigerating unit 2 by which air is withdrawn from the chamber, forced over an evaporator and recirculated to the chamber, which may be an adapted icebox. The refrigerating unit 2 is hung on the outside of the chamber 1 by means of a crossbar 6 engaging hooks 5 and has a relatively large air inlet 15 and a relatively small air outlet 14 corresponding with similar openings 17 and 16 in the chamber wall. A blower 18 draws air from the chamber over the evaporator 19 of a conventional compression system and recirculates the cooled air into the enclosure through the outlet 14, 16. The condenser 29 and compressor are in a separate compartment of the refrigerating unit and a blower 30 driven by the same motor 22 as blower 18 circulates ambient air over the condenser. Condensate on the evaporator 19 is collected in a drip tray 31 and drained to a drip tray 26 beneath the condenser where it is absorbed by a wick 27 which is situated in the path of the ambient air to the condenser 29. The air is thus coooled before reaching the condenser and the efficiency of the condenser increased. The system may be controlled by a temperature control switch.
Patent GB-1253835-A (GB)
Title: Ridge unit for roofs
Inventor: GREENSMITH ROBERT HENRY
IPC: E04D3/40
Filed: 1968-07-12
Abstract: 1,253,835. Ridge units for roofs. BP CHEMICALS INTERNATIONAL Ltd. and REDLAND TILES Ltd. 13 June, 1969 [12 July, 1968], No. 33267/68. Heading E1W. A ridge covering for a tiled roof comprises a series of inverted V or U sectioned aluminum or plastics members 6 secured together and to the roof by connecting plates 12 which have tongues 13 and 14 engaging flanges 8 and 9 and an elongated slat 15 through which a bolt passes to a U shaped clip 17 which has outwardly directed flanges 12 nailed to the ridge beam. The joints between adjacent members 6 are covered by sealing members 29 which are sprung thereover. When tiles 4 are not planar the groove 31 receives the edge of a flashing the other edge of which conforms to the shape of the tiles. (For Figure see next page)
Patent GB-1021085-A (GB)
Title: Two-for-one yarn twisting machines and stop-motions for use in such machines
Inventor: SCRAGG FREDERICK
IPC: B65H63/036
Filed: 1962-08-30
Abstract: 1,021,085. Stop-motion. ERNEST SCRAGG & SONS Ltd. Aug. 27, 1963 [Aug. 30 1962], No. 33268/62. Heading DID. A stop motion for apparatus which includes a 2:1 twisting machine and take-up means, comprises a feeler which, when the yarn breaks, falls into the path of the flyer of the twisting-apparatus and prevents yarn moving from the supply package to the rotor of the twisting apparatus. Movement of the feeler may also cause the take-up means to stop. One feeler may be a pivoted two-armed lever, which when the yarn breaks, pivots so that one end intercepts the flyer and the other intercepts a projection on a disc rotating with the driving drum. In another form, the feeler is pivoted to a cam which when the feeler falls is rotated to project a pin into the path of the projection. On leaving the eye above the twisting apparatus, the yarn passes over a forwarding roller, a lubricating-roll and through two eyes.