baber/WOPTO huggingface dataset:
Patent GB-1058249-A (GB)
Title: Operating device, in particular for electric circuit breakers
IPC: H01H33/46
Filed: 1963-11-29
Abstract: 1,058,249. Actuation of switches. ALLMANNA SVENSKA ELEKTRISKA AB. Nov. 29, 1963 [Dec. 1, 1962], No. 47173/63. Heading H2B. [Also in Division F2] An operating device for a circuit-breake<SP>r</SP> includes a magnetic holding device comprising a permanent magnet 11 attracting an armature 13 against a strong spring 19 and a rod 33 for separating the armature from the magnet. When an insulator column 9 is moved upwardly, rod 33 separates the armature 13 from the magnet and spring 19 moves a rod 21 with the armature rapidly upwards to change over a valve 26 thus applying compressed air from a reservoir 1 to an actuator 6 to open a contact 4. Compressed air also enters a conduit 32 driving a piston 17 downwards to reset the holding device. When a second insulator 10 is moved upwardly to release a second magnetic holding- device a spring 20 changes over a second valve 30 to vent conduit 32 thus returning valve 26 to the position shown. Air then escapes from conduit 7 through conduit 29 resetting the second holding device and the contacts reopen. Forks 36, 37 are attached to the insulators 9, 10 for resetting the armatures if they fail to reset automatically as described.
Patent GB-1495962-A (GB)
Title: Fire retarding textile materials
IPC: D06M13/322
Filed: 1974-11-04
Abstract: 1495962 Phosphorus-nitrogen condensation products R B LEBLANC 4 Nov 1974 [5 Dee 1973 27 June 1974] 47524/74 Heading C3R [Also in Division D1] The invention comprises a water-soluble condensation product of a phosphorus compound of formula or of formula with ammonia and with monomethylamine, where R is hydrogen or alkyl, R<SP>1</SP> is OR or NR 2 , Y is the anion of an acid, n is from 2 to 4 and m is 2 or 3, from 0À5 to 6 moles of the phosphorus compound initially being present per mole of the nitrogen compound. Solutions of the condensation product are used to impregnate textile materials to make them fire resistant, the textiles then being dried and cured by heating and/or exposure to ammonia. The treating solutions also may contain aminoplast resins, urea or thiourea. In examples tetrakis (hydroxymethyl)phosphonium chloride, phosphate, acetate and oxalate are reacted with aqueous ammonia, tetrakis (hydroxymethyl)phosphonium chloride is reacted with monomethylamine and tris (hydroxymethyl) phosphine is reacted with aqueous formaldehyde and ammonia; aqueous solutions of the products are used to treat polyester-cotton fabrics and cotton flannelette, other ingredients of the solutions including melamine resin, a wetting agent, urea, thiourea and tris (2,3-dibromopropyl) phosphate; the fabrics are then dried and cured by heating and/or contacting with ammonia, followed by oxidation with hydrogen peroxide.
Patent GB-1026301-A (GB)
Title: Improvements in circuit breakers especially for semiconductor circuits
IPC: H01H71/14
Filed: 1962-12-18
Abstract: 1,026,301. Magnetic switches. REGIE NATIONALE DES USINES RENAULT. Dec. 18, 1962 [Dec. 19, 1961; Nov. 15, 1962], No. 47760/62. Heading H2B. A small cut-out comprising a magnetic blade pivoted between two permanent magnets to have two stable positions, from one of which it can be moved to the other by energization of a coil surrounding part of the blade, has series contacts opened by the movement of the blade to said other stable position but not until the blade has travelled to a position from which it will continue to move to said other stable position when the current is interrupted. The blade is reset by direct mechanical actuation or a second coil may be provided for electrical resetting. In the embodiments of Figs. 1 and 2 (not shown) the blade carries one contact and the co-operating contact is mounted on a leaf spring of suitable resilience to prevent breaking of the circuit until the blade has passed " dead centre ". In the embodiments of Figs. 3 and 4 (not shown) separate contacts are operated after sufficient lost motion travel of the blade. In the embodiments of Figs. 5, 6 and 7 (not shown) the blade is centrally pivoted to move between two magnets on either side. The latter embodiment has auxiliary windings in series with a rectifier and a Zener diode respectively to render it sensitive to reversed polarity and voltage of supply. The magnets are made of barium ferrite to provide temperature compensation of operating current.
Patent GB-1284820-A (GB)
Title: Improvements in or relating to guide line systems for automatically controlled vehicles
IPC: B60T7/22
Filed: 1970-10-08
Abstract: 1284820 Electric railways ROBERT BOSCH GmbH 8 Oct 1970 [9 Oct 1969] 47816/70 Heading B7L [Also in Division G1] In a vehicle control system, in which vehicles move along a guide-wire system providing a magnetic field which is picked up by sensors in the vehicles, to prevent collisions between vehicles, each carries at its rear a transmitter of amplitude or frequency-modulated radiation and at its front a receiver sensitive only to the modulated radiation. The transmitter directs upwardly or downwardly a preferably semicircular pool of, e.g. light, which defines a particular distance behind a vehicle of closest approach. When a following vehicle gets closer than this distance its receiver is energized to stop the vehicle or cause it to follow a by-pass loop 19, which is energized at a different frequency from wire 11.
Patent GB-1373803-A (GB)
Title: Analogue to digital converters
IPC: H03M1/00
Filed: 1972-10-09
Abstract: 1373803 Analogue to digital converters NORMALAIR-GARRETT (HOLDINGS) Ltd 9 Oct 1972 [14 Oct 1971] 47892/71 Heading G4H An. analogue to digital converter comprises an oscillator for generating clock pulses, a voltage controlled oscillator for generating pulses at a frequency proportional to a first input signal Vin, a switch S1 for feeding the output of either oscillator to a frequency to voltage converter, a second switch S2 for enabling the output of the frequency to voltage converter to be compared with the first input signal to control the voltage controlled oscillator or with a second input signal Vref. to control the value of the conversion factor in the frequency to voltage converter and a third switch S3 for holding the factor at a particular value during an analogue to digital conversion and for adjusting the factor during calibration of the converter. During the calibration period the ganged switches S1-S3 are in the positions shown and the output voltage Vm of a track and hold circuit adjusts the value of the conversion factor to be equal to the ratio of Vref. to the frequency of the oscillator clock pulses. The switches S1-S3 are then changed over to form a closed loop voltage controlled oscillator circuit and a counter (not shown) counts pulses of the output signal of the voltage controlled oscillator. The holding of the conversion factor at a value during the measurement period which is equal to its value determined during the calibration period ensures that the number of pulses counted in a given time is directly proportional to Vin. In a modification, a single differential amplifier replaces differential amplifiers A1, A2, logic and timing circuits are substituted for switches S1, S3 and a display or computer is connected to the output of the counter.
Patent GB-1141360-A (GB)
Title: Process for the removal of hydrogen sulphide from gaseous mixtures
IPC: B01D53/52
Filed: 1966-11-02
Abstract: 1,141,360. Recovery of sulphur. ALLIED CHEMICAL CORP. 25 Oct., 1966 [25 Oct., 1965; 15 Aug., 1966], No. 47901/66. Heading C1A. [Also in Divisions B1 and C5] H 2 S is removed from gas mixtures, especially from natural gas, by absorption at 1-105 kg/cm.<SP>2</SP>, preferably up to 70 kg./cm.<SP>2</SP>, in a liquid dialkyl ether of a polyalkylene glycol, which is subsequently regenerated by stripping at reduced pressure with an oxygen-containing gas such as air. The mixed gas stream of H 2 S and air is then preferably passed to a bauxite catalyst bed at 150-425‹ C. where the HS 2  is oxidized to sulphur, the effluent vapours from the bed being condensed to recover the sulphur in liquid or solid form. The solvent may be flashed at an intermediate pressure before stripping in order to remove absorbed gases other than H 2 S. The solvents generally contain 2-7 ethenoxy units, the dimethyl ether of tetraethylene glycol being preferred. In Fig. 2, natural gas having an H 2 S/CO 2  molar ratio of 0À1-10 enters sorber 2 by line 1 and sorbent by line 4, the pressure being maintained at 10À5-105 kg./cm.<SP>2</SP> and the gas and liquid flow rates being so chosen that relatively little CO 2  is sorbed. Purified gas leaves at 5, charged solvent at a temperature of 0À5-44‹ C. passing by line 6 to be flashed to 1À05-35 kg./cm.<SP>2</SP> in tank 7. The overhead, which comprises process gas and CO 2 , is returned by line 8 to sorber 2 while the solvent is heated in exchangers 10 and 11 on its way to stripping column 12 which is at 0À14-1À26 kg./cm.<SP>2</SP> Air is fed in at the base and the effluent stream containing desorbed H 2 S passes to condenser 15, condensed solvent being returned to the stripper by line 16. Regenerated solvent is cooled in heat exchanger 10 and cooler 19 before being returned to the sorber. A process in which the stream of solvent is used first to remove and recover CO 2  from a gas stream from which the H 2 S has already been removed, and then, after flashing to remove the H 2 S from an incoming gas stream, is also described (see Fig. 3, not shown). In Fig. 1 (not shown), the effluent gas stream of H 2 S and air is passed by line (59) through heater (61), where more air enters by line (60), to bauxite catalyst bed (63), the effluent vapours being liquified in condenser (20) and molten sulphur recovered through line (21).
Patent GB-1260323-A (GB)
Title: Hydraulic-lever systems
Inventor: PAGINTON PHILIP NORMAN
IPC: B60T8/18
Filed: 1969-10-02
Abstract: 1,260,323. Load responsive braking systems. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. 28 July, 1970 [2 Oct., 1969], No. 48455/69. Heading F2F. [Also in Division F1] A load-responsive braking system includes an hydraulic lever arrangement having at one station 1 a closed chamber 3 containing hydraulic fluid and with opposite walls 4, 5, each constituted by a flexible diaphragm and engaged respectively with a bearing member 6, displaceable by a change in vehicle loading, and a non- deformable piston-like member 7 slidable in a chamber 8 open to atmosphere, the upper face 11 of member 7 being engaged with a diaphragm 12 constituting one wall of a chamber 14 containing hydraulic fluid 13 and connected to a chamber 15, at a second station 2, containing a spring-loaded piston 17 which is connected to a valve in the braking system. A thrust on member 6 deflects wall 4 causing, because of the difference of area of walls 4 and 5, a larger deflection of wall 5 which is transmitted by member 7 to cause a similar deflection of diaphragm 12 to displace hydraulic fluid and move piston 17. Chamber 3 may alternatively house a mass of solid material such as rubber.
Patent GB-1063293-A (GB)
Title: Improvements in or relating to horticultural and like implements
Inventor: HARGREAVES DEREK BURTT
IPC: A01B1/06
Filed: 1962-12-27
Abstract: 1,063,293. Horticultural appliances. SISIS EQUIPMENT (MACCLESFIELD) Ltd. Dec. 30, 1963 [Dec. 27, 1962], No. 48611/62. Heading A1B. A device for preparing and levelling soil comprises a number of transverse channelsection members 10 secured to side members 11 pivoted to a stirrup 12 whereby the device may be reversed to present either the flat surface of the members or their edges to work the soil.
Patent GB-1524302-A (GB)
Title: Reperation of non-corrosive detergent compositions
IPC: C11D3/395
Filed: 1976-01-22
Abstract: 1524302 Non-corrosive detergent compositions RHONE POULENC INDUSTRIES 22 Jan 1976 [24 Jan 1975 31 July 1975] 48795/77 Divided out of 1524301 Heading C5D A non-corrosive detergent composition is prepared by mixing one or more nonionic detergents or a mixture of nonionic and anionic detergents, one or more bleaching agents including a source of active Cl, and a silicate of formula xNa 2 O.yAl 2 O 3 .zSiO 2 .wH 2 O, wherein x, y, z and w are positive members, the silicate and any perfume required being added to the mixture before the source of active Cl.
Patent GB-1515358-A (GB)
Title: Apparatus for lifting disabled persons
IPC: A61G7/10
Filed: 1975-11-28
Abstract: 1515358 Elevators MECANAIDS LTD 2 Nov 1976 [28 Nov 1975] 48916/75 Heading B8L A lift for mounting on or adjacent a bath comprises an extensible telescopic column 1, to the upper portion 5 of which is pivotally mounted a lifting arm 10 for movement about vertical axis, the arm 10 being manually lockable and releasable in a desired angular position. The upper portion 5 of the column is slideable within a lower portion 4 thereof under the control of a screw 18 and nut 20 arrangement operable by a handle 7, the arrangement preventing relative rotation between the two portions about the column axis. The lower portion 4 is adjustable in height and angularity, relative to a fixed base tube 4a, by the use of a spring detent arrangement 8, 9 between the portion 4 and tube 4a.
Patent GB-1024309-A (GB)
Title: Integrated circuits using thermal effects
IPC: H03K3/282
Filed: 1962-12-31
Abstract: 1,024,309. Semi-conductor circuits. TEXAS INSTRUMENTS Inc. Dec. 31, 1962 [Oct. 16, 1962], No. 49044/62. Heading H3T. [Also in Division H1] An electric circuit comprises a semi-conductor wafer having a plurality of circuit elements the arrangement being such that thermal coupling between heat generating and heat responsive elements provides positive (i.e. a phase difference of between 90 degrees and 270 degrees) feedback in the circuit. Fig. 1 shows a low frequency oscillator circuit in which the base electrode of transistor 20 is directly connected to the collector of transistor 10; the base of transistor 10 is biased so that normally there is no collector current. When voltage is applied, transistor 20 conducts and heat from the collector region travels to the base region of transistor 10 so that less base-emitter voltage is required to turn on transistor 10 and this therefore conducts. If the thermal path is so chosen that the effect at the base region of transistor 10 is 180 degrees out of phase with the heat provided at the collector of transistor 20, the result is positive feedback and the arrangement oscillates at a frequency determined by the constants of the thermal link. In silicon, a path length of 10 mils corresponds 16 a frequency of 2430 c.p.s. and 100 mils to 24 c.p.s. A rectangular output can be obtained by increasing the gain and cross coupling may be used to provide a multivibrator.
Patent GB-1272225-A (GB)
Title: Band or webbing structures
Inventor: BARNETT NIGEL JOHN
IPC: B29C48/305
Filed: 1968-10-16
Abstract: 1,272,225. Flat ropes. IMPERIAL CHEMICAL INDUSTRIES Ltd. 2 Oct., 1969 [16 Oct., 1968], No. 49098/68. Addition to 1,164,842. Heading D1T. A band or webbing is produced by compacting one or more bundles of filaments arranged in a band in a first die, subjecting the band to a reduced atmospheric pressure and whilst still compacted, extrusion coating the band with a thermoplastic organic sheath in a second die. The filaments may be of polyethylene terephthalate, isotactic polypropylene, nylon 6 or 66, glass, a blend of polypropylene and polyethylene, or a blend of polypropylene and an elastomeric olefine copolymer. The sheath may comprise low or high density polyethylene, polyvinyl chloride, polyurethane, polyester, e.g. polyethylene terephthalate, polyamide, e.g. polyhexamethylene adipamide, or stereoregular polypropylene.
Patent GB-1453852-A (GB)
Title: Air nozzle for drying a fabric web supported on supporting means
IPC: B05B13/00
Filed: 1973-10-23
Abstract: 1453852 Nozzles VITS-MASCHINENBAU GmbH 23 Oct 1973 [16 Nov 1972] 49263/73 Heading B2F [Also in Division F4] An air nozzle has a number of rows 4, 5, 6, 7, 8, 9 of adjacent holes located on the side of the nozzle facing a fabric web 18 to be dried, the direction of air blast from the nozzle holes decreasing in steepness from one row to the next from the nozzle centre. The holes increase in cross-section towards the sides of the nozzle but those of any one row are of the same cross-section, the total cross-section of each row being constant. The holes are provided in a perforated plate which has bevelled edges of different angles. For adjacent nozzles a metal perforated sheet is provided therebetween. The fabric web 18 which may be woven goods, non- woven fabric, mica pulp or paper pulp, moves on a base 17 which may be an inextensible belt or drum and have a greater porosity than the fabric web.
Patent GB-1182407-A (GB)
Title: A Method of and a Device for Diffusion Chromium Coating of Metal Articles
Inventor: ZAITSEV ERNEST GRIGORIEVICH
IPC: C23C10/60
Filed: 1968-10-17
Abstract: 1,182,407. Coating with chromium. TSENTRALNY NAUCHNO-ISSLEDOVATELSKY INSTITUT TEKHNOLOGII MASCHINOSTROENIA. Oct.17, 1968, No.49343/68. Heading C7F. A method of diffusion coating of ferrous metal with chromium by a process employing a reducing atmosphere containing hydrogen and a halogen or halides inside a heated retort into which are charged the workpieces and a chromium-containing material in granular form is characterized in that upon completion of the chromium-coating process, the chromium-containing material is separated from the articles whilst hot, and is placed in a separate chamber in which it is protected against being oxidized or cooled, and after the chromium coated workpieces have been discharged from the retort and a fresh charge of workpieces has been inserted, the chromium-containing material is re-charged into the coating chamber. The hydrogen-containing atmosphere may be provided by dissociation of a hydrocarbon gas such as methane, and the chromium-coated articles may be hardened by feeding them into a quenching bath direct from the retort. Articles to be coated are fed into retort chamber 2 heated to about 850‹C. via mouth 18 with lid 13 removed and the apparatus with its axis a-a substantially vertical, and with chromium-containing granules in chamber 3. Hydrocarbon gas is blown through the apparatus in direction A through bore 5 to build up a reducing atmosphere, and then the retort is tipped so that mouth 18 is inclined downwards, and watercooled valve 4 is opened to allow coating material to enter chamber 2, and ammonium halide or chromium chloride is fed into chamber 2 via duct 15 in a capsule adapted to burst under the halide vapour pressure caused by heating. The charge is then heated to 900-920‹ C. for 2¢ to 4 hours, and when coating is complete, the retort is tipped so that with valve 4 re-opened,Cr-containing granules are returned to chamber 3, whilst the workpieces remain in chamber 2, and then, with valve 4 shut, the coated articles are discharged to a quenching tank.
Patent GB-1269103-A (GB)
Title: A converging solid-state laser element
Inventor: UCHIDA TEIJI
IPC: H01S3/17
Filed: 1969-10-08
Abstract: 1,269,103. Lasers. NIPPON SELFOC CO. Ltd. 8 Oct., 1969 [16 Nov., 1968], No. 49447/69. Heading H1C. [Also in Division G2] In a laser rod having a refractive index n at a distance r from its axis of symmetry given by the equation n = N(1 - ¢ar<SP>2</SP>) where N is the re-, fractive index at a given point on the axis and a is a positive constant for that point, at least one of N and a varies monotonically along the axis. The cross-sectional area of the rod preferably increases in the axial direction in which a and/or N decreases, but the rod may be cylindrical if only one of a or N varies. A beam of light 11 passing through the rod 1 oscillates about the axis z, and due to the axial variation in a or N has a larger exit area on face 4 than the input area on face 3, hence allowing a larger output without saturation. The radial variation in n maintains beam 11 adjacent the axis z, and concentrates pumping radiation 5 in the axial areas. The rod may be glass or plastics, with an Nd<SP>3+</SP> lasing dopant and a U<SP>4+</SP> sensitizer.
Patent GB-1391811-A (GB)
Title: Connecting plate
IPC: F16B15/06
Filed: 1972-10-28
Abstract: 1391811 Spiked plates ERIC CORNER Ltd 26 Oct 1973 [28 Oct 1972 23 Nov 1972 11 May 1973] 49827/72 54272/72 and 22505/73 Heading F2H In a metal connector plate 1 for a wooden truss the plate has a plurality of teeth 2 struck from the plate and each tooth is provided at the upper end on one side thereof with a barb 2a deformed out of the major plane of the tooth 2.
Patent GB-1007403-A (GB)
Title: Improvements relating to elapsed time indicators
Inventor: KIRYLUK WLODZIMIERZ
IPC: G04F13/00
Filed: 1963-12-18
Abstract: 1,007,403. Electrolytic integrating meters; timing operation of machines. INDUSTRIAL INSTRUMENTS Ltd. Dec. 18, 1963, No. 50030/63. Addition to 912,160. Headings G1Q and G1V. [Also in Division G3] An elapsed time indicator comprises an electrochemical cell 4 in the form of a column in which the electrodes are separated by a gap in the column containing electrolyte, material being transferred from anode to cathode when current is passed, the cell being transparent to permit the position of the gap to be read against a calibrated scale 9, and a lamp 3 connected so that it is switched on and off with the cell to illuminate the gap, the device thus indicating both the total duration of current flow and whether current is flowing at the moment of examination. A diffuser plate 7 is placed between the lamp and cell. The cell may be of capillary dimension.
Patent GB-1280569-A (GB)
Title: 6-aminomethyl steroids
IPC: A61P29/00
Filed: 1970-10-21
Abstract: 1280569 6-Aminomethyl steroids UPJOHN CO 21 Oct 1970 [19 Nov 1969] 50030/70 Headings C2C and C2U Novel 6-aminomethyl steroids having in rings A and B the structure (wherein R<SP>1</SP> and R<SP>2</SP> are each C 1-12  alkyl, C 1-12  hydroxyalkyl, C 3-8  cycloalkyl, C 6-14  aryl, alkaryl or aralkyl or -NR<SP>1</SP>R<SP>2</SP> is alkyleneimino of 5, 6 or 7 ring members) are prepared by reaction of steroids having in rings A and B the structure (wherein R<SP>3</SP> can have the same meanings as R<SP>1</SP>) with the appropriate amine NHR<SP>1</SP>R<SP>2</SP> or a salt thereof and formaldehyde in the presence of a strong acid but under basic conditions. The steroids may, for example, be of the androstane, 19-nor-androstane, pregnane, 19-nor-pregnane, spirostane, cholestane, ergostane or stigmastane series or retro steroids or D-homo steroids. In some examples a 1α-methoxy group in a starting material is eliminated in the process to give a 1-unsubstituted-#<SP>1,4</SP>-product.
Patent GB-1217842-A (GB)
Title: Improvements relating to the production of iron sponges and iron powder by hydrogen reduction of ferrous chloride
Inventor: GRAVENOR CONRAD PERCIVAL
IPC: C21B13/00
Filed: 1967-11-03
Abstract: 1,217,842. Producing iron powder. RESEARCH COUNCIL OF ALBERTA. March 29, 1968 [Nov.3, 1967], No.50133/67. Heading C7D. Iron powder, having increased apparent density and improved flow rate suitable for forming powder metallurgy compacts, is produced by admixing iron powder with ferrous chloride powder and subjecting the mixture to briquetting, hot hydrogen reduction and comminution. The iron powder to be admixed is preferably recycled powder produced by the hot hydrogen reduction of briquettes of ferrous chloride powder. The admixed iron powder preferably comprises between 20 and 70% by weight of the iron in the mixture. The ferrous chloride may be in the form of Fe C1 2  . 2H 2 O crystals formed by leaching iron concentrate or scrap with HCl solution.
Patent GB-1532300-A (GB)
Title: Caliper brake apparatus for bicycles
IPC: B62L1/12
Filed: 1976-12-03
Abstract: 1532300 Disc brakes BRIDGESTONE CYCLE CO Ltd 3 Dec 1976 [12 July 1976] 50585/76 Heading F2E [Also in Division B7] In a caliper brake for cycles a shaft 5 pivotally mounts brake levers 8, 11 and an arm 19 located between the levers and having a through hole 19c in which is mounted a centre ball portion 20a of a rod 20 having ball portions 20b at its ends received in blind holes 8c, 11c in the levers, the rod 20 and arm 9 acting to automatically maintain the spacing between a brake shoe 9 and a wheel rim equal to that between a shoe 12 and the rim.