baber/WOPTO huggingface dataset:
Patent GB-1355434-A (GB)
Title: Vacuum device including valve and service coupling therefor
IPC: F16K51/02
Filed: 1971-07-30
Abstract: 1355434 Valves; pipe stoppers RICOR Ltd 30 July 1971 [31 July 1970] 36049/71 Headings F2V and F2P A valve 2 for controlling evacuation and sealing of a high vacuum system connected at 6 is shown connected to a removable service coupling 4 having a bellows-sealed threaded stem 42 rotation of which causes axial movement of a cylindrical slider 50 carrying or defining a permanent magnet 52 adapted to shaft magnetic stainless steel closure member 18-22 relative to its seat 16, 17. The service coupling is connected to the valve by nut 34 Upon removal of the service coupling, a threaded cover 70, 72 may replace the nut and serve to hold the closure member against its seat. Such cover may alternatively be perforated and enclose a spring which allows the closure member to vent excess positive pressure in the vacuum system. In other modifications, the closure member may be a permanent magnet instead of or as well as member 52.
Patent GB-846957-A (GB)
Title: Improvements in or relating to navigation aiding radio beacons and systems
Inventor: JOLLIFFE SIDNEY ARTHUR WALTER
IPC: G01S1/02
Filed: 1957-11-20
Abstract: 846,957. Radio navigation. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. Aug. 6, 1958 [Nov. 20, 1957], No. 36143/57. Class 40(7). In a radio navigation system for determining the bearing of a mobile receiver relative to a beacon, the beacon transmits a rotating beam of plane polarized waves whose plane of polarization is rotated synchronously with the beam rotation and the receiver comprises means for determining the direction of the plane of polarization of the received signals. The system is suitable for use when transmission between the beacon and receiver is effected by scatter propagation since the direction of the plane of polarization is not affected by scatter variation. The aerial system of the beacon, Fig. 1 (not shown), comprises a vertical dipole backed by a paraboloidal reflector, the dipole and aerial system being rotated at the same speed about horizontal and vertical axes respectively by separate motors or by a common motor; the beam is tilted slightly upwards. As shown the receiver comprises a vertical dipole R 1  and a horizontal loop R 2  connected to the stators S 1 , S 3  and S 2 , S 4  of a capacity goniometer. The rotor A 1 , A 2  of the goniometer is driven by a motor M and the rotation modulation component of the output from the goniometer is detected at D and applied together with a reference signal from a generator G driven by the motor M to a phase comparator calibrated in bearing; the resultant 180 degrees ambiguity may be eliminated by the provision of an additional sensing aerial.
Patent GB-1358757-A (GB)
Title: Method of combating paddy stem borers using substituted phenylamidin
IPC: C07C257/12
Filed: 1971-08-02
Abstract: 1358757 Pesticidal application of phenyl amidines CIBA-GEIGY AG 2 Aug 1971 [3 Aug 1970] 36172/71 Heading A5E [Also in Division C2] Paddy stem borers are combatted by treating them or their locus or habitat with a compound of the formula: wherein R is a C 1  to C 4  alkyl group and X is F, A, Br or I, or with a salt of such a compound with an inorganic acid. The compounds of the above formula may be used by themselves or together with carriers and/or adjuvants including solvents, dispersants, wetting agents, adhesives, thickeners, binders, fertilisers or further biocidal compounds. Specified classes of biocidal compounds are ureas, saturated and unsaturated halo-fatty acids, halohydrocarbons, carbamates, triazines, nitroalkyl phenols, organic phosphoric acids, quaternary ammonium compounds, sulphamic acids, arsenates, arsenites, borates or chlorates. Examples are given in which compositions are prepared and tested.
Patent GB-960913-A (GB)
Title: A differential pressure indicating device particlarly for use in signalling a clogged condition of a fluid filter
Inventor: WHITING JAMES CLIFFORD
IPC: B01D35/14
Filed: 1961-10-09
Abstract: 960,913. Indicating condition of filters. BENDIX CORPORATION. Oct. 9, 1961, No. 36195/61. Heading BID. [Also in Division G3] A device 30 for indicating the clogged condition of a filter 28 consists of a movable valveclosure member 42 with a differential actuating- piston 44 spring-loaded to seat the member 42 in an aperture 40 which connects the space beneath the piston 44 to a chamber 36 housing a further piston 48 having an indicating rod 50. The differential piston 44 is acted upon by both the filter inlet pressure, tending to open the valve, and the filter outlet pressure, tending to close the valve ; when the filter is clogged the pressure drop thereacross is sufficient to elevate the differential piston and the valve 42 opens, whereupon the inlet fluid traverses the aperture 40 and extends the rod 50 to a visible position, which rod cannot then be reset until the contaminated filter is removed and the fluid behind the piston 48 released by lifting the differential piston 44 to again uncover the aperture 40. An auxiliary filter 58 is positioned over the inlet port 52 to the space beneath the differential piston.
Patent GB-840022-A (GB)
Title: A method for the preparation of 1,3,5í¬triphenyl benzene
IPC: C07C1/207
Filed: 1958-11-12
Abstract: 1,3,5-ttriphenylbenzene is prepared by the condensation of acetophenone in the presence of boron trifluoride, or its addition products such as its hydrates or its acid addition products; dypnon (C6H5CO.CH:C(CH3)C6H5) is also formed and may be separated from the product and recycled.  A preferred catalyst is boron fluoride diacetic acid used in amounts of 0.2-1.5% by weight of the acetophenone.  The process may be effected continuously, preferably in a distillation column.  A water entrainer may be added to assist in the removal as distillate of water, this may be excess acetophenone or benzene. Triphenylbenzene is recovered from the sump product and other materials including dypnon recycled.  Unused acetophenone is also recycled.
Patent GB-431056-A (GB)
Title: Improvements in or relating to bearings for colliery tubs and like light railway vehicles for use in mines and like places
IPC: B61F5/32
Filed: 1933-12-27
Abstract: 431,056. Hallway - vehicle undercarriages. MORRIS, Ltd., R., TAYLOR, C. H., and MAXWELL, N. R., Farnworth, Bolton. Dec. 27, 1933, Nos. 36335/33 and 9383/34. [Class 103 (vi)] [See also Group XXXIV] In a bearing for colliery tubs and like light railway vehicles for use in mines and like places, the bearing block a which rides on the axle b has an upper recess holding an indiarubber cushion block d through which the load is transmitted from the base plate c of the tub to the bearing block. A housing strap e passes underneath the axle and between flanges f on the block a to permit vertical movement of the latter, the ends of the strap abutting against turned down ends g of the base plate c to which it is bolted ; the strap e where it passes under the axle is cut away or reduced in width to allow greasing. Modified constructions of bearing block are described.
Patent GB-794138-A (GB)
Title: Improvements in or relating to reclining chairs
Inventor: WINICK JACK ISAAC
IPC: A47C1/032
Filed: 1955-12-20
Abstract: 794,138. Seats. RESEARCH INTERESTS, Ltd. Sept. 18, 1956 [Dec. 20, 1955; Feb. 22, 1956], Nos. 36547/55 and 5542/56. Class 52(2) In. a reclining, chair wherein the back and seat are hingedly Connected at 6, and pivoted at 10 and 12 to tilt in the'supporting frame, pin and slot guide means are provided which cause the rear of the seat to move downwardly in relation to the seat frame as the seat moves forward upon rearward tilting of the back. As shown the ends of the pivots 6, 10 move in a cranked slot 8 and the pivots 12 ride up an inclined slot 13. Specification 788,095 is referred to.
Patent GB-344388-A (GB)
Title: Improvements in and relating to electric arc rectifiers
IPC: H01J13/20
Filed: 1929-11-29
Abstract: 344,388. Mercury-vapour rectifiers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and WHITAKER, F. P., 237, Clifton Road, Rugby. Nov. 29, 1929, No. 36657. Drawings to Specification. [Class 39 (i).] Each anode of a mercury-vapour rectifier is fitted with a shield, at the top or in the side of which there is provided one or more openings adjacent the anode surface, the opening being comparable in size with that provided for the normal arc path and having a high ratio of surface to area of opening to facilitate the de-ionization of vapour passing therethrough and increase the vapour pressure within the shield. The surface area of the opening is increased by the provision therein of closely spaced annular discs concentric with the anode, Fig. 1 (not shown), or by forming the shield with double walls, Fig. 2 (not shown), to provide an annular passage for the vapour.
Patent GB-901913-A (GB)
Title: Thermal and magnetic trip device for electric circuit-breakers
IPC: H01H71/40
Filed: 1959-11-02
Abstract: 901,913. Temperature-responsive actuating- elements. SQUARE D CO. Nov. 2, 1959 [Dec. 22, 1958], No. 37052/59. Class 64 (2). [Also in Group XXXVII] A trip device for a circuit-breaker comprises a current-carrying bimetal strip 50 secured at its upper end to an adjustable terminal strip 38 and attached to and partially enclosed by a U-shaped magnetic yoke 51, whose arms 53, 54 are formed with hooked supports 61, 62 in which pivot the upper shoulders 65, 66 of a bimetal strip 64, normally urged clockwise by a spring 71 acting between its lower shoulders 72, 74 and a cup 70 formed on the yoke 51. The movement of strip 64 is limited by the engagement of its lower end 68 in an aperture 69, and its upper end is secured to an ambient temperature compensating bimetal strip 73 whose lower end 73A engages the face 34A of a pivoted spring-urged member 34 to maintain the breaker contacts closed. Fig. 1 (not shown). A moderate short-time overload current deflects the strip 50 anti-clockwise about its upper end, but the heat transfer between the strips 50, 64 is not sufficient to similarly deflect the latter to disengage the members 34, 73. If the overload is sustained, however, the upper end of the strip 64 deflects to assist the strip 50 in tripping the breaker. Tripping is produced on severe overload by the flexure of the strip 50 alone, and on the occurrence of fault current by the attraction of the strip 64 to pole faces 55, 56 of the yoke 51.
Patent GB-1143013-A (GB)
Title: Improvements in pipe couplings
Inventor: MALTESE RONALD CHARLES JOSEPH
IPC: F16L29/02
Filed: 1966-08-18
Abstract: 1,143,013. Pipe couplings. NORTH THAMES GAS BOARD. 3 Aug., 1967 [18 Aug., 1966], No. 37081/66. Heading F2G. A tubular body 1 provided with an external screw-thread 4 for receiving a pipe-coupling nut has an enlarged bore 8 defining an annular shoulder 9 and contains a valve 13 supported on a stem 14 which slides in a hole in a spider 16, the valve having a perforated tubular part extending into a bore 7 and being urged by a spring 19 against a seating 10 on the shoulder; a pipe pushed into the bore 7 holds the valves off the seat to allow gas to flow through the perforations 20. The spider is secured in position by a circlip 17, and an 0-ring 22 is carried by the valve.
Patent GB-888991-A (GB)
Title: Polymeric product
IPC: C08F8/34
Filed: 1958-11-19
Abstract: An unsaturated liquid polymer or copolymer of a diene is reacted with from 1 to 10 mole per cent of an organic polyhydrosulphide in the presence of a free radical initiator or of an irradiation source. Specified dienes are butadiene, isoprene, piperylene (cis or trans), cyclopentadiene and the hexadienes; these may be copolymerized with ethylene, propylene, butene-1, the pentenes, cyclopentene, cyclohexene, styrene, vinyl toluene, methyl methacrylate, 2-ethylhexyl acrylate and acrylonitrile.  Specified polyhydrosulphides are 1,2-ethanedithiol, 1,3-propanedithiol, tetramethylenedithiol, hexamethylenedithiol, the cyclohexanedithiols, 2,3-dimercaptopropanol-1, dithiomalonic and dithioterephthalic acid, alpha, alpha1, dimercaptoxylene and o, m and p-phenylenedithiols. Specified initiators are di-tertiary butyl, benzoyl, di-cumyl, and acetyl peroxides, tertiary butyl hydroperoxide and azo-bis-isobutyronitrile.  The reaction including the chemical initiator may take place at 120 DEG  to 350 DEG F.
Patent GB-822636-A (GB)
Title: Master gears
Inventor: POMERNACKI HENRY
IPC: G01B5/20
Filed: 1956-12-07
Abstract: 822,636. Gauging toothed gears. ILLINOIS TOOL WORKS. Dec. 7, 1956, No. 37514/56. Class 106 (2). A master gear 10 adapted to be rolled with a workpiece 46 in the usual manner has three sections 34, 36, 38, with teeth 42, 54, 58 designed to investigate off-lead condition, tooth form and tapering or off-parallel condition, respectively. The section 34 is formed with teeth 42 having their addendum removed and their dedendum undercut as shown in Fig. 4. The form of the workpiece teeth thus has no influence on the reading of the indicator 30, but any incorrectness in the lead will be indicated. The portion 36 of the master gear 10 has teeth 54 of normal form, Fig. 6, but of minute axial extent, thus indicating errors in tooth form of the workpiece. The teeth 54 are formed in the centre of this portion and thus the form of the workpiece teeth may be checked at any selected position without interfering with the other parts of the master gear 10. The portion 38 is formed with teeth 58 circumferentially and helically spaced on the body. Part of the addendum of each tooth is removed so that rolling contact between the workpiece 46 and master 10 is just maintained. This portion will thus measure any tapering or off-parallel condition of the workpiece teeth along the axis. The three sections 34, 36, 38 may be made separate from one another and a fourth section having conventional teeth may also be provided for obtaining a composite check of the workpiece 46.
Patent GB-1016499-A (GB)
Title: Soldering flux
IPC: B23K35/36
Filed: 1962-10-04
Abstract: A soldering flux comprises a water solution comprising at least 1 mole per litre of hydrazine acetate and an excess of acetic acid, the combined and free acetic acid being present in a molar quantity of from 2 1/4 -4\ba1/2 times that of the hydrazine.  The solution contains preferably 2 moles per litre of hydrazine acetate with an excess of acetic acid of 1-2 mole per litre.  The flux is used for soft solders, such as conventional tin-lead solders for soldering copper and copper alloy parts or zinc-coated parts.
Patent GB-1315602-A (GB)
Title: Fire alarm system
IPC: G08B17/11
Filed: 1971-08-10
Abstract: 1315602 Fire alarms NITTAN CO Ltd 10 Aug 1971 [10 Aug 1970 (2) 20 Aug 1970 31 Aug 1970] 37574/71 Heading G1N [Also in Division G4] In a fire alarm system an indication is given as to whether a fire is detected or an ionisation smoke detector forming part of the system is operating erroneously. As shown an ionisation detector including series connected open and closed chambers 20, 10 and a FET 6, is supplied with an operating voltage. A detection output of the detector is supplied  to the base of a bi-polar transistor 31, whose emitter collector is connected in series with a Zener diode 32 across the voltage source, to render the transistor conductive and thereby reduce the voltage supplied to the chambers 10, 20 to the Zener voltage which is insufficient to enable smoke detection but sufficient for the detector to still provide an output when the F. E. T. fails or due to insulation breakdown of the chambers. Thus, when smoke is detected, the transistor 31 and thus a relay 16 is operated intermittently, whereas a continuous operation is provided due to malfunction. The relay 16 is used to operate a discriminator circuit, Fig.7 (not shown), which discriminates between intermittent and continuous operation to energise an appropriate alarm device. The discriminator may be a pulse counter. Other embodiments for reducing the operating voltage, upon receiving a detection output, include a switch operated by the relay 16, to switch to a lever voltage source, Fig. 5 (not shown), or utilizing the impedance of the relay element, Fig. 6 (not shown).
Patent GB-328456-A (GB)
Title: Improvements in or relating to means for controlling the temperature in silos, and other large zones or spaces
IPC: G05D23/24
Filed: 1929-08-02
Abstract: 328,456. Foster, C. E. Aug. 2, 1929. Thermostats. - Apparatus for use in controlling, or facilitating the control of, 'the temperature of a silo &c. or in a room &c. comprises a Wheatstone bridge arrangement containing in one arm a resistance thermometer a within the room &c. and in other arms resistance thermometers d, e outside the room. The thermometer d is of elongated form having means for reducing time lag while the thermometer e is not provided with such means, so that a sudden change of external temperature unaccompanied by an immediate change in the internal temperature produces an immediate change in the resistance of the thermometer d with a consequent deflection for the galvanometer G, enabling the temperature within the room &c. to be adjusted in anticipation of the change which would subsequently take place therein in consequence of the change in the outside temperature. The thermometer a within the room may also be provided with means for reducing time lag.
Patent GB-956107-A (GB)
Title: Improved process for the production of cyclohexanone oxime
Filed: 1962-10-05
Abstract: Cyclohexanone oxime is prepared by hydrogenating nitrocyclohexane to form a hydrogenation product which is subsequently blanketed with a non-oxidizing gas and heated in the presence of a reduction catalyst to a temperature of between 125 and 175 DEG C.  Suitable non-oxidizing gases are nitrogen and hydrogen. Suitable reduction or hydrogenation catalysts are mixtures of silver oxide, chromium oxide, zinc oxide and calcium oxide.  The intermediate hydrogenation product may consist of a mixture of cyclohexanone oxime, nitrocyclohexane, cyclohexylamine and cyclohexylhydroxylamine.
Patent GB-1079962-A (GB)
Title: Improved magnetic recorder and method of recording
IPC: G11B15/20
Filed: 1964-09-17
Abstract: 1,079,962. Recording apparatus. AMPEX CORPORATION. Sept. 17, 1964 [Jan. 2, 1964], No. 38074/64. Heading G5R. A recording apparatus wherein a write and increment command from a source 8, Fig. 3, is supplied to a motor controller 70, to move a magnetic medium 90 by an increment, and to a write circuit 50, is characterized by the provision of a delay circuit 10 in the path of the write command. There is a time delay between the application of a signal to controller 70 and the consequent movement of the medium 90, and the delay produced by circuit 10 is such that writing occurs after the medium has settled within its positional tolerance following a preceding movement but before the medium starts moving again in response to the new command. The effect is that commands may succeed each other more rapidly.
Patent GB-971869-A (GB)
Title: New or improved paint-tin and brush holder
IPC: B44D3/12
Filed: 1963-09-27
Abstract: 971,869. Brush holders. M. HARRISON. Sept. 27, 1963, No. 38092/63. Heading B8D. A paint brush supporting tray 27 is slidably mounted on a bracket arm 21, by a bridgepiece 26, welded to its underside and having an arm 28 pressed against the side of paint tin 10 by a compression spring 31, to secure handle 20 to the tin. The spring 31 may be replaced by a screw.
Patent GB-878152-A (GB)
Title: Process for the production of itaconic acid by fermentation
Inventor: KINOSHITA SHUKUO
IPC: C12P7/44
Filed: 1957-12-07
Abstract: Itaconic acid is obtained by a fermentation process which comprises culturing any strain belonging to Aspergillus itaconicus under submerged aerobic conditions in a culture medium containing a sugar solution and 0.01 to 0.5% by weight of an organic or inorganic nitrogen source, the sugar solution having an equivalent glucose concentration of from 15 to 20%.  The sugar solution is preferably molasses which suitably has not been pretreated, e.g. de-salted.  The process is suitably operated in pH range of 2.5 to 5.0 and when molasses is used no adjustment of the pH is necessary.  Specified sugar materials are glucose, refined white sugar, raw sugar, cane molasses and beet molasses any one of which may be used in conjunction with NH4NO3, KH2PO4 and MgSO4.7H2O to prepare a culture medium.  Other nitrogen sources mentioned are (NH4)2SO4, NH4Cl, NaNO3, urea and peptone.  Examples are given.
Patent GB-1479382-A (GB)
Title: Radar system
IPC: G01S13/53
Filed: 1975-09-17
Abstract: 1479382 Doppler radar RAYTHEON CO 17 Sept 1975 [3 Oct 1974] 38249/75 Heading H4D In a digital processing Doppler pulse radar (Fig. 1) wherein a quadrature phase detector 10 is used to produce video signals which are then sampled and the samples converted into digital format signals X(t) and Y(t), the signals X(t) and Y(t) may be respectively represented by: where A=amplitude constant, #=arbitrary phase angle, #=amplitude imbalance between the quadrature channels, #=phase imbalance between the quadrature channels, Bx, By=D.C. offsets in the quadrature channels. It is an object of the invention to remove the imbalance effects e, #, Bx, By, in a compensator 38 (Fig. 3) by intermittently substituting a "test echo" for the real thing, doppler shifted by #f D  an integral submultiple of the sampling rate (e.g. 10/512 MH 3  for a sampling rate of 5 MH 3 ), storing the resultant values of e, #, Bx and By and using said values for subsequent compensation. The transmitter carrier signal at f RF  (from STALO 22) +f IF  (60 MH 3  from generator 24) is amplified in a travelling wave tube 20 enabled by a XMT pulse (10<SP>3</SP> H 3 ) from generator 24, and the carrier pulse fed to the aerial 12 via circulator 14. Every 20 seconds a XMT pulse is replaced by a TEST pulse causing RF switch 44 to feed the output of test signal generator 42 into the receiving port of circulator 14 via coupling 45, said output being at the frequency (f RF +f IF +#f D ) or f RF +(60+ 10/512)- MH 3 . The resultant X(t) and Y(t) signals (1) and (2) at 5 MH 3  bit rate are fed in the compensator 38, Fig. 3, to respective gates 104, 106 enabled by 50À4 Ásec. long pulses T. Every fourth of the gated through samples is selected by gates 100, 102 (i.e. 64 samples during the 50À4 Ásec. T interval) and the 1À25 MH 3  samples are fed into a Fast Fourier Transformer 116 having 64 pairs of "real R" and "imaginary I" outputs. From the first pair 0, the D.C. offsets Bx, By are produced for storage (after inversion at 118, 120) in register 122, 124 as correction signals C 11  and C 12 . From the second pair of outputs 1 are produced the real and imaginary parts of the #f D  component whilst from the last or 64th pair are produced the parts of the image of the #f D  component: Adders 128, 130 and inverter 126 enable the complex conjugate of the 64th pair output to be added to the output of the 2nd pair output. The complex conjugate of the resultant of this last step is then, at divider 134, divided into twice the 64th pair output. The "real" and "imaginary" resultants of this last step are inverted and stored in registers 136, 138 to give respective correction signals At the finish of the TEST pulse the true echo signals X(t), Y(t) are gated at 140, 142 for combination with the correction signals C 11 , C 12 , C 21 , C 22 , in such a manner that the resultant compensated signals Xc(t), Yc(t) are given by: