baber/WOPTO huggingface dataset:
Patent GB-213497-A (GB)
Title: Improvements in soft collar fasteners
IPC: A41B3/08
Filed: 1923-08-11
Abstract: 213,497. Clibbery, J. C. Aug. 11, 1023. No Patent granted (Sealing fee not paid). Soft-collar fasteners.- These comprise snap fas. teners 3, 4 mounted at the ends of a flat spiral or leaf spring 1, each of the elements 4 being movable into engagement with its complementary element 3 in a direction transverse to the flattened face of the spring.
Patent GB-1497349-A (GB)
Title: Method of obtaining copper from cupriferous sulphide concentrates
IPC: C25C1/12
Filed: 1975-05-15
Abstract: 1497349 Recovery of copper from ores SOC MINIERE ET METALLURGIQUE DE PENARROYA 15 May 1975 [15 May 1974] 20573/75 Heading C1A Electrolyte grade copper (as defined) is obtained from a cupriferous sulphide or concentrate by: (I) lixiviation by leaching the ore or concentrate with aqueous cupric chloride solution to obtain a lixivium containing copper dissolved therefrom as cuprous ions, some of the cuprous ions formed by the leaching reaction being re-oxidized in the same stage by means of hydrochloric acid and an oxygen-containing gas to form cupric ions for leaching; (II) extraction of dissolved copper as cupric ions from the lixivium containing cuprous ions and received from the lixiviation stage (I) into an organic phase containing an ion-exchange reagent, the extraction stage including injection of an oxygen-containing gas into the lixivium to oxidize other of said cuprous ions to cupric ions and separation of the copper-loaded organic phase from the aqueous phase, part of which is recycled to the lixiviation stage (I) to provide a part of said cupric chloride used for leaching; (III) re-extraction of the copper taken up by the organic phase during the extraction stage (II) by contacting the organic phase resulting from the extraction stage (II) with an aqueous sulphuric acid solution to obtain dissolved copper as its sulphate, the reextracted organic phase being recycled to the extraction stage (II) after separation from the copper-loaded aqueous sulphuric acid solution; and (IV) treatment of the copper sulphate solution obtained in the re-extraction stage (III) to yield copper values, the aqueous sulphuric acid solution so obtained being recycled to the re-extraction stage (III). In stage (IV) of the process the copper is preferably recovered from the copper sulphate solution by electrolysis. The organic extractants used in stage (II) of the process may be of the copper selective "LIX" or "KELEX" (Registered Trade Marks) types.
Patent GB-729429-A (GB)
Title: Improvements relating to arc chutes for airbreak electric circuit-breakers
Inventor: ROBERTS FREDERICK ARTHUR
IPC: H01H9/34
Filed: 1951-08-31
Abstract: 729,429. Arc-rupturing in switches. REYROLLE & CO., Ltd., A. Nov. 28, 1952 [Aug. 31, 1951], No. 20605/51. Class 38 (5). In an arc-chute for an air-break circuitbreaker A, having a series of parallel slotted partitions B lying transverse to the arc when initially drawn, the partitions are formed from plates of magnetic material coated with arcresisting insulating material. The coating may be applied by painting, spraying, dipping or moulding and in cases where the partitions are not flat, they may be bent to the desired configuration before or after coating. In Fig. 2 the plates are formed with side lugs B<SP>3</SP>, as described in Specification 722,604. Also, strips of material B <SP>4</SP>, B<SP>6</SP> left attached to one side of the slot B<SP>1</SP> in each plate are bent at right angles to the slot to form a flange to increase the amount of magnetic material in immediate proximity to the arc. An extension B' of one of the side lugs B3 of each plate may be bent inwards to meet the end of the flange B<SP>4</SP>, so that when the plates are assembled the passages formed between co-operating pairs of plates are in the form of convergent - divergent nozzles. Specification 358,201 also is referred to.
Patent GB-294119-A (GB)
Title: Improvements relating to shunting apparatus for use on railways
IPC: B61H9/04
Filed: 1928-07-16
Abstract: 294,119. Ges. f³r F÷rderanlagen E. Heckel. July 16, 1927, [Convention date]. Rope railways.-In gravity shunting yards wherein the speed of trains downhill is regulated by endless ropes, the coupling members are retained in place by weighted carriage a<1>, a<2> on rails c. 'The coupling comprises a rod f pivoted to the carriage a<2> and housed in the carriage a<1> when inactive, the rod serving to push the train when required. A link i may be provided to adjust the length of the rod. The rod may be replaced by two cables or chains connected to the one or two carriages.
Patent GB-1149742-A (GB)
Title: Electric signal amplifiers
IPC: H03F1/26
Filed: 1966-05-10
Abstract: 1,149,742. Transistor amplifying circuits; automatic volume control. WESTERN ELECTRIC CO. Ltd. 10 May, 1966 [14 May, 1965], No. 20619/66. Headings H3T and H4R. An amplifier has a feedback path including a resistive element and a variable impedance network 33, 34 coupled to the resistive element 26 via a transformer 30 which provides a voltage step-up between the element 26 and the network 33, 34, the impedance of network 33, 34 being controlled in dependence on signals derived from the output circuit of the amplifier so that the amplifier gives relatively low gain for signals below a predetermined level and relatively high gain for other signals. The variable impedance network 33, 34 may comprise vacuum, silicon, germanium or copper oxide diodes. The stage shown may follow two other stages fed from a reluctance microphone in an operator's headset, the non-linear negative feedback characteristic imposed by the diodes 33, 34 surpressing background noise and crosstalk.
Patent GB-597193-A (GB)
Title: Improvements relating to internal-combustion engines incorporating cooling fans
IPC: F01P7/08
Filed: 1945-08-11
Abstract: 597,193. Cooling systems for internal-combustion engines. HUMBER, Ltd., and MILLER, A. C. Aug. 11, 1945, No. 20677. [Class 64 (iii)] [Also in Group XXVII] An engine cooling fan is driven through an electromagnetic clutch which is energized when a predetermined engine temperature is reached and disconnected when the temperature drops. The fan 11 is formed with, or fixed to, a ring 12, which with a pulley 15 is freely mounted in a bearing sleeve 17, held on the shaft 14 by circlips 18. The fan and pulley are made of magnetic material, and one has a coil 19, which is energized so that the two are frictionally engaged when a thermally actuated switch is closed. The switch may be placed in the engine cylinder head, or at the base of the radiator. The fan and pulley may be moved back by a spring.
Patent GB-740361-A (GB)
Title: Improvements in and relating to electromagnetic circuit breakers
Inventor: GIMSON CYRIL FREDERICK
IPC: H01H71/44
Filed: 1952-08-18
Abstract: 740,361. Electrically-released switches. BRITISH THOMSON-HOUSTON CO. Ltd. Aug. 10, 1953 [Aug. 18, 1952], No. 20712/52. Class 38(5) A circuit-breaker comprises a contact carrying arm 1 pivotally supported at 6 on a magnetic arm 4 mounted on a fixed pivot 5, a tension spring 7 being connected to the arm 1 below the pivot 6. To close the breaker an electromagnet 9 is energized to attract its plunger 10 pivotally connected to a bell crank lever 11 pivoted at 12, whereby a roller 13 on the lever 11 rotates the arm 1 counterclockwise about pivot 6 until the arm is arrested by engaging pivot 5 acting as a stop. Both arms 1, 4 then pivot clockwise about pivot 5 and the arm 4 is held by an electromagnet 8. It is arranged for magnet 9 to be de-energized at this stage whereby the lever 11 retracts from the arm 1 and the arm is moved by spring 7 so that contact 2 engages fixed contact 3. To prevent the shock of contact engagement from unseating the arm 4 from the magnet 8, the arm 1 is given a retarded movement by connecting it through a link 14 to the outer crank 19 of a dashpot 15, the crank 19 being mounted on a shaft 16 carrying an inner crank 17 connected to a piston rod 18. High speed opening of the contacts 2, 3 upon de-energization of the magnet 8 is, however, enhanced by the dashpot, since it discourages pivotting of the arm 1 about pivot 6 and instead causes the arms 1, 4 to pivot about 5, the contact 2 thereby having a greater movement.
Patent GB-1344195-A (GB)
Title: Planetary gear changespeed transmission mechanism
IPC: F16H3/66
Filed: 1971-04-19
Abstract: 1344195 Variable speed gears REGIE NATIONALE DES USINES RENAULT and AUTOMOBILES PEUGEOT 19 April 1971 [4 Feb 1970] 20729/71 Heading F2D A casing housing hydraulically operated brake(s) 15, 151 and clutch(es) 14, 14<SP>1</SP> and a oneway clutch 20 arranged to control a planetary gear train 10 ... 13 (e.g. a Ravigneaux train) has one race 19 of the clutch 20 on a wall housing separate fluid chambers 43, 46 (e.g. one 46 being of fixed volume and comprising radial passages in corrugations in a plate 48) each extending radially to the outer diameter of the brake 15 which holds the planet carrier 12. The input 8 may be driven via a chain and sprocket drive (5, 6, 7), Fig. 1 (not shown) by a crank-shaft (2) driven hydrokynetic torque converter 1.
Patent GB-432790-A (GB)
Title: Apparatus for ascertaining the direction, position and speed of vehicles, ships and aircraft
IPC: G01S11/10
Filed: 1933-07-24
Abstract: 432,790. Locating sounds. EXPLOROTOR AKT.-GES., Glarus, Switzerland. July 24, 1933, Nos. 20807 and 20808. Convention dates, July 23, 1932 and March 13, 1933. Drawings to Specification. [Class 118 (ii)] [See also Group XL] Relates to means for ascertaining the position of a moving craft relatively to one or more fixed radio beacons by measuring the apparent change in frequency of electromagnetic waves, due to the Doppler effect, on a cathode ray tube indicator mounted on the craft. According to the Specification as open to inspection under Sect. 91, the invention is stated to be applicable to a sound-signalling system. This subject-matter does not appear in the Specification as accepted.
Patent GB-1000138-A (GB)
Title: Improvements in or relating to drill rods
Inventor: HEISKANEW SAKARI
IPC: E21B17/00
Filed: 1962-05-30
Abstract: 1,000,138. Percussive drills. SANDRIKENS JERNVERKS AKTIEBOLAG. May 30, 1962, No. 20816/62. Heading B4C. A percussion drill comprises a shank of polygonal cross-section separated by a collar 13 from the drill rod 11 and provided with stress - relieving means which comprise rounded or bevelled edges 19 formed by cutting back edges 17 of the shank for a given length adjacent to the collar. The bevelled edges formed are situated closer to the drill axis than the edges 17 and merge, via a radius 20, with the collar. The crosssection of the rod may be cylindrical instead of polygonal and the collar may be formed separately instead of integrally with the shank. The shank may be connected to the rod by a screw arrangement. Other embodiments comprise tapering the bevelled edges inwards towards the collar and undercutting the shank and adjacent collar surface. Dimensional proportions for the length width and taper of the bevelled edges are given.
Patent GB-1104148-A (GB)
Title: Improvements in or relating to channel for a scraper chain conveyor
IPC: B65G19/28
Filed: 1965-03-12
Abstract: 1,104,148. Endless conveyers. GEWERKSCHAPT EISENHTTE WESTFALIA 12 March, 1965 [19 Nov., 1964], No. 20890/66. Divided out of 1,104,158. Heading B8A. A reinforcement portion 12 for a scraper conveyer channel length 10 includes a tongue 20 which fits into a recess 21 provided in a reinforcement portion 18 of an adjacent channel length, the edges 22 of the recess and of the tongue being chamfered so that there is formed an outwardly opening V-shaped groove which is self-cleaning.
Patent GB-698870-A (GB)
Title: Improvements in and relating to crystallising processes
IPC: B01D9/00
Filed: 1949-08-12
Abstract: In crystallization apparatus employing a cooling surface, solid deposited on the surface is melted by passing an electrical current through it for short periods, and solid is removed from the surface under the effect of gravity and/or by causing the liquid being crystallized to flow past the surface.  The cooling surface may be a coil fed with high current pulses under the control of a mechanical switch or an ignition, or with radio frequency pulses.  If a jacketted crystallizer is used, current may be induced in the vessel wall.  An example is given of the crystallization of p-xylene from a xylene fraction.
Patent GB-688779-A (GB)
Title: Improvements in and relating to electric toasters
IPC: A47J37/08
Filed: 1950-08-25
Abstract: 688,779. Thermal switches; mechanical switches. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 25, 1950 [Aug. 31, 1949], No. 21082/50. Class 38 (v) [Also in Group VI) In an electric toaster which has an electric motor 50 for moving a toast carriage from a non-toasting to a toasting position, and a spring 42 for returning the carriage to the non-toasting position, manual and thermal switching means control the energization of the motor which stalls and counteracts the spring during the toasting period. Toasting may be manually controlled by plungers 104, 106, which start and stop toasting respectively. Plunger 104 closes normally separated spring contacts 98, 99 when it is depressed and plunger 106 carries a pin 106a which when the plunger is depressed engages a T-shaped rocker 107 carrying an insulating bushing 108 which opens contacts 113, 114 in the motor circuit 144 and terminates toasting. A pin 116 on plunger 104 also engages rocker 107 and a toggle mechanism is arranged so that depression of one plunger causes the other plunger to be fully raised. The toasting cycle is timed by bimetallic elements 120, 145, adjacent each toast position, of which element 120, Fig. 3, on heating, engages an insulated bushing 128 secured to spring contact 123 and hence separates normally closed contacts 122, 123, element 145 operating similarly on contacts 141, 142. When the contacts in both positions are broken the motor circuit is broken and toasting is completed. The degree of toasting may be controlled by lever 8 through link 132 and a crank 133 having an eccentric portion 134. which, through arms 135, 136, changes the positions of the strips 123 and hence the bushing 128 corresponding to each toasting slot. Toasting may be commenced by inserting bread and pressing the carriage downwardly to close contacts 89, 90 or by pressing plunger 104 to close contacts 98, 99. Toasting may be stopped by pressing plunger 106 to open contacts 113, 114 or will cease when bimetallic strips 120, 145 have opened both sets of contacts 122, 123 and 141, 142. Specification 638,201 is referred to.
Patent GB-221632-A (GB)
Title: Improvements relating to elastic fluid turbines
IPC: F01D25/24
Filed: 1923-08-20
Abstract: 221,632. Baumann, K., and Metropolitan-Vickers Electrical Co., Ltd. Aug. 20, 1923. Casings; leakage-preventing devices.-In turbines of the disc or drum type wherein the stationary blades or diaphragms 4 are carried by a stator 3 exposed on both sides to the motive fluid, one or more flexible bucket rings 5 are interposed between the stator 3 and the casing 1 to maintain the stator 3 concentric with the rotor and at the same time to prevent leakage of motive fluid. The ring 5 may be formed integral with a flange 9 on the stator 3, Fig. 1, which engages a groove 10 in the casing 1; or the flange 9 and ring 5 may be arranged as shown in Fig. 2, holes 12 admitting motive fluid to the space between them. In modifications the flange 9 is dispensed with, and where two rings 5 are used, one may engage a smooth surface on the casing 1 and the other a groove therein. The ring 5 may be recessed at its outer periphery to receive a piston ring which is pressed outwards against the casing 1 by the motive fluid.
Patent GB-1096104-A (GB)
Title: Improvements in light sensitive photographic emulsions
IPC: G03C1/34
Filed: 1965-05-19
Abstract: 1,096,104. Anti-foggants. FERRANIA, S.p.A. May 19, 1965 [May 19, 1964], No.21109/65. Heading G2C. Fog is prevented in silver halide emulsions by adding thereto a compound of the formula:- wherein X is H or a halogen, alkyl, aryl, aralkyl, alkoxy or nitro group and n is O or an integer, at the rate of 5-25mg. per 1kg of melted emulsion. The emulsion may contain Au, Pt, Pd, Rh, Ir, Th or Cd chemical sensitizers.
Patent GB-1132180-A (GB)
Title: Mechanical vibration generator
IPC: B06B1/16
Filed: 1965-12-16
Abstract: 1,132,180. Vibrator; toothed gearing. A. G. BODINE. 16 Dec., 1965, No. 21155/68. Divided out of 1,098,110. Headings F2Q and F2X. A vibrator comprises a body 170, formed from end caps 172 and 173 and spacer member 171, and a raceway 176 of circular cross-section, an inertia rotor 180 which is mounted on an axle 182 for orbital travel on and around the raceway 176, a gear 184 on the axle 182 and coaxial with the rotor, a stationary gear 186 on the body in mesh with the gear 184, a drive gear 189 fixed to and coaxial with the gear 184, and an input gear 190 coaxial with the raceway and in mesh with the gear 189. Conical projections 194, 195 maintain the rotor 180 in contact with the raceway during start-up.
Patent GB-656278-A (GB)
Title: Improvements relating to centering scaffolding and similar supports used in building
IPC: E04G11/56
Filed: 1948-08-12
Abstract: 656,278. Shuttering-supports. SMITH, W. H, Aug. 12, 1948, No. 21328. [Class 20(ii)] A sheet metal telescopic centering (or other) support for use in building has outer and inner members 1, 5 of inverted triangular cross-section and the inner members have strengthened grooves 9 on the top and strengthening plates 6 at the apices. The inner members have also, at the ends of the apices, sheet bearing pads which come against detachable stops 8 inside the members 1 to keep them from being pulled right out. A centre stop 4 prevents the inner members from fouling each other. The invention, may be regarded as an improvement on those of Specifications 378,475 and 405,279.
Patent GB-597482-A (GB)
Title: Improvements in or relating to apparatus for treating solid materials with liquids, gases or vapours
IPC: C11B1/10
Filed: 1945-08-21
Abstract: An apparatus for contacting solid materials with liquids, gases or vapours (e.g., extracting fat or oil containing materials with volatile solvents, treating animal refuse with steam, or drying wet materials in a stream of air or gas) comprises a closed container 1 arranged to oscillate about its longitudinal axis and having rigidly connected to its exterior (preferably arranged on a single plane) pipe conduits 6, 8 and 10 at separate points 7, 9 and 11 situated outside the axis so as to participate in the oscillatory movement of the container.  The outer ends of these conduits are rotatably engaged in stationary stuffing boxes 12, 13 and 14 successively arranged in the prolongation of the axis of oscillation of the container and connected to parting stationary conduits.  The oscillating movement of the container and of pipes 6, 8 and 10 can thus extend in both directions until the pipes almost touch <PICT:0597482/III/1> the stationary pipes 15 and 16.  One end wall of the container may be provided in the centre with a stuffing box 5 traversed by a stationary rigid pipe 4 of large diameter leading into the upper part of the interior of the container for evacuating vapours.  The apparatus obviates the necessity for either a plurality of concentric stuffing boxes mounted in the centre of the end wall of the container, or of flexible pipe connections.
Patent GB-1527554-A (GB)
Title: Transverse section radionuclide scanning system
IPC: G01T1/29
Filed: 1976-05-24
Abstract: 1527554 Radiography UNITED STATES DEPARTMENT OF ENERGY 24 May 1976 [10 June 1975] 21365/76 Heading H4F  Apparatus for determining the distribution of radioactive isotopes in a plane, e.g. a transverse section of the human brain, comprises an array of detectors 13 arranged substantially to surround the plane of interest and the array is rotated in the plane to scan the plane. Outputs from the detectors, which can be scintillators coupled by light guides, are used to generate infra-red light pulses in laser emitting diodes at T rotating with the scanning system and optically coupled to stationary detectors which in turn provide signals to a data processing and display system 28. The input beam directions of opposed detectors in the array are interlaced so as not to duplicate beam directions, Fig. 5 (not shown).
Patent GB-239214-A (GB)
Title: Improvements in or relating to rotors for electrical machines
IPC: H02K1/30
Filed: 1925-08-26
Abstract: 239,214. Siemens - Schuckertwerke Ges. Aug. 27, 1924, [Convention date]. Cores, yokes, and carcass structures.-To obtain proper distribution of centrifugal stresses in the rotor of a high speed machine, a carrier ring z of material of high tensile strength is interposed between the rotor segment plates or rings b and the hub n. In the form shown, the laminµ are secured to the intermediate ring by dovetail keys k.
Patent GB-1313725-A (GB)
Title: Tiltable grill unit
IPC: A47J37/06
Filed: 1971-04-19
Abstract: 1313725 Grill unit CRAMER Gebr 19 April 1971 [8 Jan 1971] 21420/71 Heading A4D A grill unit comprises a rectangular frame 2 in which is tiltably mounted a grill housing 3 containing a grilling element 5. The grill housing is open at its front end and its top, bottom and sides are formed by metal plates. The front edges 9 of the side plates are obliquely inclined. The housing can be tilted within the frame through 90 degrees from the open position, Fig. 2, to the position where the top wall closes the front of the frame. A gas burner pipe 4 passes through the frame and the grill housing and is provided with a grilling element 5. The burner pipe 4 pivots about a nipple 16 affixed to gas supply pipe 7. Air inlets 6 are provided on the supply pipe and a control knob 8 is positioned on the frame. The grill unit is preferably mounted in a sink unit for a caravan.
Patent GB-1142026-A (GB)
Title: Microwave gaseous switch tube for coaxial transmission lines
IPC: G01S7/03
Filed: 1966-05-13
Abstract: 1,142,026. Coaxial line switches. VARIAN ASSOCIATES. 13 May, 1966 [13 May, 1965], No. 21439/66. Heading H1W. An ATR or pre-TR gas switch for a co-axial line comprises a discharge tube 8 located within conductive sleeves 5, 6 attached respectively to the inner and outer conductors 2, 3 of the line and defining a discharge gap 7. The dimensions of the tube and the sleeves are such that there is a small annular air-filled gap (not shown) between them whereby capacitances exist between tube and sleeves when the tube fires. The area of these coaxial capacitors is such that the electric field intensity across them does not exceed the breakdown field (e.g. for air at 20 psi, a value of about 30 kV/cm.). The condition is fully discussed in the Specification. In the embodiment, two tubes are arranged one either side of the central conductor 2. They are of the re-entrant (or folded) type and are located by a spring 17 and silicone-rubber sleeve 18. The re-entrant ends of the tubes lie against a removable plug 11 of PTFE. In order to compensate for the increase in capacitance of the line in the region of the sleeves 5, 6, the outer conductor is locally enlarged in a direction at right-angles to the axes of the tubes.