baber/WOPTO huggingface dataset:
Patent GB-1409028-A (GB)
Title: Circuit arrangement for controlling an arc
IPC: B23K9/09
Filed: 1973-03-22
Abstract: 1409028 Automatic control of arc current GRIESHEIM GmbH 22 March 1973 [22 March 1972] 13864/73 Heading G3R [Also in Division H2]  A circuit for supplying an arc welding set comprises a transformer 11, a current adjusting circuit 12, a comparator 14 for comparing predetermined and actual values of the welding current, and a pulse generator 15 connected to the actual valve input of the comparator. The welding set is used for TIG pulsed D.C. arc welding, the transformer 11 being connected via a transductor 26 and a rectifier 38 to a welding torch 42 and a workpiece 43. The actual welding current is sensed by a current transformer 19 and compared with the predetermined value set by a potentiometer 17. The output of the comparator controls the firing of a uni-junction transistor 32 which in turn controls the firing angle of a thyristor 28 connected to the control coil 26a of the transductor. Deviations of the welding current from the predetermined value adjust the firing angle of the thyristor 28 to vary the current in the coil 26a, thereby varying the resistance of the transductor windings 26b to maintain the welding current at the predetermined value. The pulse generator 15, which comprises an astable multi-vibrator, enables a pulsed welding current to be provided, the duration of each welding pulse being determined by a resistor 25 and the interval between the pulses being determined by a resistor 24. In a modification the transductor 26 and rectifier 38 are replaced by a rectifier circuit including diodes and thyristors.
Patent GB-326087-A (GB)
Title: A combined butter or margarine dish and melting apparatus
IPC: A47G19/26
Filed: 1929-05-03
Abstract: 326,087. Roberts, F. D. May 3, 1929. Dishes. - A combined butter or margarine dish and melting apparatus comprises a receptacle A and a tray B which occupies, or is adapted to occupy, a position to one side of, and with its edges substantially level with, the upper edge of the receptacle for enabling a portion of butter &c., when placed therein, to be independently heated from a source of heat below the tray and then to be worked into a required consistency. The bottom of the tray may be inclined, as shown, or horizontal; and the tray may be integral with the receptacle and a separate lid C provided. Or the tray may be hinged to the receptacle so that, when not required as a tray, it can be turned over to serve as a lid for the receptacle.
Patent GB-737373-A (GB)
Title: Improvements in or relating to the production of porous metallic strip
IPC: H01G9/048
Filed: 1951-06-12
Abstract: 737,373. Coating with metals. BRENNAN, J. B. June 12, 1951, No. 13914/51. Class 82 (2). [Also in Group XXXVI] In a method of making a metallic strip a stream of heated metal particles is sprayed at a constant rate on to a moving base to form a porous layer which is subsequently stripped from the base. The strip has uniform crosssection throughout its length and this is attained by multiple overlapping of sprays or by sequential overlapping of spray from a single spray source. The invention is described with reference to production of porous electrode strips for batteries and electrolytic capacitors. In Fig. 1 electric pump 15 is associated with molten metal 21 in crucible 1 through terminals 11 on conductors 12 and if molten metal 21 falls away from top terminal 11 electric pump 15 operates ram 16 in hydraulic chamber 14 to elevate molten metal 21 whose head is thus kept constant with reference to spray nozzle 8. The molten metal 21 heated by high-frequency coils 2 traverses conduit 6 and atomized by gaseous blast 9 in nozzle 8 is sprayed on to moving base 17 which may consist of aluminium strip or wire cloth anodized by bath 20 or coated by bath 20 with boric acid to facilitate stripping of deposited metal particles 24. The nozzle 8 may comprise fine orifices on the tapered part 6a or several nozzles 8 may be positioned so that sprays overlap. The deposit is uniform in thickness throughout base 17. It is stated that during a given time interval required for the deposit of a particle the movement of the base must be less than the diameter of a particle to permit the hitting of preceding particles by succeeding particles. Preferably the particles deposited on the base exceed 1000 per linear foot. The moving base 17 unwinds from a drum fluid cooled at 18. The metal strip 24 is stripped without tearing from base 17 and Fig. 2 shows a roll-type capacitor comprising porous electrode strips 24 and porous spacers 23 consisting of preformed dielectric or sprayed-on dielectric such as polythene, polystyrene, nylon, cotton and aluminium oxide, alone or in mixtures applied by overlapping sprays. The terminals 22 can be cut from the composite strip 23, 24. Battery electrodes.-The apparatus of Fig. 1 may be used to produce battery electrodes comprising superposed layers of cadmium and iron or zinc and cadmium. A negative electrode may be made by coating a base with zinc oxide and then successively spray-depositing zinc and nickel ; next the three layers are stripped and the zinc oxide face receives zinc and nickel as before. The resultant composite strip may be incorporated into a saturated zincate solution with a porous nickel electrode impregnated with nickel hydroxide as positive. The zinc negative electrode is enclosed by porous nickel but the latter may if desired receive a spray layer of zinc. The invention may also provide the positive electrode by spraying nickel on to nickel hydroxide. The electrodes may be coated with polystyrene.
Patent GB-1104635-A (GB)
Title: X-ray spot film device
IPC: G03B42/02
Filed: 1965-04-01
Abstract: 1,104,635. X-ray apparatus. SIEMENSREINIGER - WERKE A.G. 1 April, 1965 [3 April, 1964], No. 13956/65. Heading H5K. X-ray apparatus, in which the image layer devices are arranged in a spot film device 4 having an exposure position (at which is located the fluorescent screen 5) and, located on the right of the exposure position, a " ready " position, at which the cassette 8 can be loaded into the loading frame 7 and there be ready for movement (by means of cassette carriage 6) into the exposure position between luminescent screen 5 and patient, is provided with a second cassette loading position on the left of the exposure position adjacent the handle 13, loading being from the front as it is in the first loading position. This arrangement enables reloading of cassettes by an operator without requiring him to move from the control position near the handle 13, e.g. in the examination of a reclining patient. The spot film device 4 is mounted on the main support post 2 and can be moved longitudinally and transversely of the support wall 1 by means of the handle 13. A cassette 8 mounted in a holder 9 can be inserted into the loading frame 7 where it is held under spring tension. The cassette carriage 6 can be moved manually into the exposure position, or by a motor controlled by switches near the handle 13. The carriage 6 has rollers movable in rails 12, and by operation of an arm 15 can be moved to the exposure position where the loading: frame emerges beyond. the end of the spot film device to enable reloading. In operation, the arm 15 is moved from its right-hand to left-hand detent position, a cover or door 18 being. opened in the end of the spot film frame 4a, the motor driving the cassette carriage, and a spring-urged pawl (26, Fig. 3, not-shown) being erected. A hook member (11) arranged on the left edgeof the cassette, on reaching a projection (31) mounted on the side of the rail (12) is caused to hinge downwardly to allow movement of the spring-loaded loading frame out of the carriage and the carriage itself is secured. byengagement of the pawl (26) behind an abutment (25) on the carriage. A rocker (19, Fig. 2, not shown) is provided at the top of the open end of the cassette carriage, to prevent the loading frame dropping out completely from the end of the frame (4a). After reloading the cassette, the loading frame is pushed back into the carriage, the hook member (11) returning to its normal position under the action of spring (23), and the arm (15) is returned to its right-hand position, to return the carriage to the ready position.
Patent GB-1112699-A (GB)
Title: Dyeing leather
IPC: D06P1/44
Filed: 1967-03-28
Abstract: Leather is dyed using aqueous pigments preparations containing, as protective colloid, a water-soluble polymer or copolymer acrylamide and/or methacrylamide.  The pigment finishes preferably contain 1 to 10% by weight of the polymer and may contain conventional assistants. The pigments used are CI pigment black 1, chromium yellow (lead chromate) and copper phthalocyanine.  The pigment finishes are brushed or sprayed onto the leather and a final treatment with formaldehyde solution is applied.
Patent GB-567860-A (GB)
Title: Improvements in and relating to secondary emission electron multipliers
IPC: H01J43/14
Filed: 1943-08-30
Abstract: 567,860. Magnets. MULLARD RADIO VALVE CO., Ltd., and KERSEY, R. W. Ang. 30, 1943, No. 14139. [Class 35] [Also in Group XL] in an electron multiplier in which the electron stream is guided between successive secondary-electron emitting electrodes 5 by crossed electrostatic and magnetic fields, the polepieces 11 of the permanent or electromagnet 9 are divided into two or more, preferably three, parts each separately adjustable so that the magnetic field may be made greater in the neighbourhood of the cathode 3 than in the neighbourhood of the collector 7. Each part 11 is slotted and secured to the magnet by a bolt 13.
Patent GB-480585-A (GB)
Title: Improvements in or relating to motor vehicles
IPC: B60K5/08
Filed: 1936-05-19
Abstract: 480,585. Motor vehicles. VIDAL, M., VIDAL, 0., and VIDAL, H. May 19, 1936, No. 14174. Convention date, Sept. 20, 1935. [Classes 79 (iii), 79 (iv), and 79 (v)] A four-wheel-drive , vehicle, especially for cross-country travel, is characterized by two complete power units 3, each comprising a motor, change speed and differential gearing, a pair of driving wheels 4 and spring suspension means, slid on to a central longitudinal tubular frame member 2 from the front and rear ends thereof, respectively. The tubular frame member may be cranked when front and rear wheels of different sizes are employed. One unit may be freely mounted for lateral oscillation or both units may be so mounted on a tubular frame member with upwardly cranked ends above the centre of gravity of the vehicle body mounted on the intermediate part. The controls are operable conjointly or separately, the vehicle being adapted to be driven by either or both engines. Separate fuel tanks 5 and radiators 8 are provided, the rear radiator being mounted atthe side. The wheels are steered conjointly, the track rods being connected by a steering shaft 12 under the frame member 2. The pivotal connections 14 of track rods to the drop arm of the steering shaft 12 being located below the frame tube 2, the effect is stated to be that if a wheel drops into a depression, the relative movement of the track rod causes it to be automatically set to face the slope and facilitate extrication, Figs. 3-5 (not shown). Intermediate wheels 13 are provided which, being higher than the ordinary road wheels, do not normally touch the ground, but come into use when surmounting ridges &c. or crossing ditches.
Patent GB-825582-A (GB)
Title: Improvements in method and apparatus for feeding yarns
Inventor: CRAWFORD ALLAN HUGH
IPC: D05C15/18
Filed: 1957-05-03
Abstract: 825,582. Patterned tufted fabrics; feeding yarns in warp form. MOHASCO INDUSTRIES Inc. May 3. 1957, No. 14189/57. Classes 142(1) and 142(4) [Also in Group VII]  In a pile fabric, produced in a multipleneedle machine, a patterned effect is achieved by varying the height of individual tufts, those of reduced height being produced by reducing the length of the yarn fed to the needle 23 so that as the needle descends through the base fabric to insert a tuft of maximum height yarn is withdrawn from the tuft previously formed, to reduce the height of the latter. The warp of yarns y is fed to the machine by being enmeshed between two series of pattern elements 31, 43, each carried on oppositely disposed endless chains 32, 44. The chains advance in step to release, for each needle cycle, increments of yarn formed by the deviated lengths of yarn between two adjacent elements 43. The height of the elements vary, across the warp and between each other, according to the desired pattern to vary the lengths of yarn fed off at each needle cycle. Specifications 825,581 and 825,583 [both in Group VII] are referred to.
Patent GB-649083-A (GB)
Title: Improvements in or relating to hydroplanes or the like
IPC: B63B1/26
Filed: 1946-07-05
Abstract: 649,083. Hydroplane craft. HARRIS, H. C., HARRIS, C. S., and PRESTON, T. E. W. July 5, 1946, No. 14257/45. [Class 113 (ii)] The hull 1 is supported on forward planes 6 and rearward planes 10, the latter being in front of the rudder 9 and capable of being adjusted so as to positively depress the rear end of the craft. The forward planes are supported by vanes 5, having additional planes 8 and are provided with ailerons 7.
Patent GB-1470061-A (GB)
Title: Fluid control valve
IPC: F01D17/14
Filed: 1974-04-01
Abstract: 1470061 Valves ISHIKAWAJIMA-HARIMA JUKOGYO KK 1 April 1974 [2 April 1973] 14313/74 Heading F2V A valve, e.g. controlling the flow of steam to a turbine, comprises a main closure member 9 co-operating with a main seat 21 and an auxiliary closure member 24 carried by valve stem 16 and co-operating with an auxiliary seat 25 on main closure member 9. At low turbine loads only auxiliary closure 24 is unseated and the steam flow from inlet 11 through filter 13 and pentagonal ports 15 passes into a chamber 23 through holes 19 in main closure 9 and through the annular gap between the latter and liner 14. The steam then passes through holes 18 in a cover 17 and around auxiliary closure 34 to the outlet 12. As turbine load increases, a speed governor causes stem 16 to rise so that auxiliary closure 24 moves into abutment with cover 17 and unseats the main closure 9 permitting some of the steam to flow directly from ports 15 to outlet 12 (see Fig. 4, not shown). The valve control system comprises (Fig. 2, not shown) a servomotor (7) coupled to valve stem 16 by a link (31) and controlled by an electric speed sensor (4) associated with the shaft of a pump (2) driven by the turbine (1). The valve can be closed rapidly by trip devices (8) responsive to excessive speed, turbine exhaust pressure, pump temperature or pump discharge pressure.
Patent GB-611881-A (GB)
Title: A device for temporarily holding spectacles at a raised level above the nose of the wearer
IPC: G02C5/12
Filed: 1946-05-13
Abstract: 611,881. Spectacle attachments. TIPPING, G. G. T. May 13, 1946, No. 14352. [Class 97 (i)] A device for use with a pair of spectacles so that they may be held at. a raised level about the nose of the wearer comprises a member with a groove 1 to receive the bridge of a spectacle frame and shaped at 5a to rest on the bridge of the wearer's nose ; the ends of the portion 3 may be adapted to rest on the lens frames of the spectacles. The groove may be replaced by a ridge or shoulder engaging the underside of the bridge of the spectacle frame.
Patent GB-707351-A (GB)
Title: Improvements relating to latch-operating means for coke oven doors
IPC: C10B25/12
Filed: 1952-06-09
Abstract: 707,351. Coke-oven doors. KOPPERS GES., H. June 9, 1952, No. 14517/52. Class 55 (1) Apparatus for compressing coke oven door closure springs to permit unlatching comprises a coupling device engaging a part supporting the springs and pressure-applying means exerting a thrust between a mounting for the coupling device and the springs such that the thrust at one side compresses the springs against a counterthrust exerted by the coupling device in which this reaction also is absorbed. Unlatching mechanism for a coke oven door 1 is connected to operating gear 2 by a carrier 9 and spaced springs 10. Bell crank levers 13 pivoted to brackets 11 secure to the carrier have a pin 15 at the end of one arm 14 disposed between a thrust member 16 and one half 17 of a pressure medium housing, the other half 18 carrying a shaft 21 on which part 17, member 16 and carrier 9 are displaceably mounted, the carrier being urged against an adjustable stop nut 22 at the end of the shaft by a spring 23 interposed between carrier and thrust member. A rubber &c. envelope 24 lining the pressure chamber 19 is clamped at its outer margin between part 17 and a sealing ring 26, ring 25 being interposed between the two edges of the envelope. When the unlatching mechanism is advanced a conical recess 29 in part 18 is applied against the head 30 of the latch bolt and carrier 9 is pushed along shaft 21 causing levers 13 to rock about their pivots so that pins 27 at their forward ends enter a groove 28 between an attachment plate 3 and a housing for springs 8 which press against the latch 6 when the door is closed. Compressed air &c. is now admitted to chamber 19 to compress springs 8 so as to release their pressure on the latch when can then be swung off its hooks. In another embodiment the latch bolt is not axially displaceable, the springs being compressed by a surrounding thrust ring and bush on which the latch is rockably mounted. This thrust is effected by a cylindrical extension of housing 18 at the same time as a collar on the latch bolt is engaged by claw levers pivotably mounted on the front end of shaft 21 which in this construction is rigidly connected to the rear half 17 of the pressure housing. A latch mechanism is provided at both upper and lower parts of each door, the lower part advantageously being sealed first as by including a pressure-delay valve in the pressure medium line between the two mechanisms.
Patent GB-1429131-A (GB)
Title: Railway bogies with pivotally connected side frames
IPC: B61F5/30
Filed: 1974-04-02
Abstract: 1429131 Railway bogies GENERAL STEEL INDUSTRIES Inc 2 April 1974 14589/74 Heading B7L A railway bogie comprises a pair of axles 3 carrying wheels 1 and a pair of spaced side frames 11L, the side frames having downwardly open jaws 21 of V-shaped cross-section in plan receiving the axle bearings. The axle bearings 5 are secured in the jaws by elastomeric chevron springs, each comprising a V-shaped elastomeric pad 15 bounded by a pair of V-shaped metal plates, 17, 19, and by bearing adaptors 7. The side frames are connected together so as to be relatively pivotal about a transverse axis by transom members 13R, each transom member having a reduced end 23R received within a stub member 25L and cushioned by a plurality of spaced elastomeric pads 35 compressed between arcuate metal plates 32, 33. The end 23R is attached to a side frame by a bolt 39 and nut 49 and interposed elastomeric pads 43, 45. The side frame members 11L, stub members 25L and transom members 13R are formed as a one-piece casting and the portions 37 removed to separate the side frame members from each other. The opposed edges of the transom members have co-operating recesses to receive a cylindrical boss depending from a transverse bolster having spaced springs 59 for attachment to the underside of a car body and anchor means 63 at each end for attachment to the car body. In operation, the chevron springs cushion vertical impacts without permitting movement of the side frames to such an extent as to interfere with the normal operation of the current collection device.
Patent GB-470664-A (GB)
Title: A composition made by compressing artificially produced resins
IPC: C08K7/04
Filed: 1936-05-23
Abstract: Slag wool in the form of fabric or wadding is impregnated with synthetic resin, or a mixture of synthetic resin and fibrous slag wool is applied to slag wool fabric, the proportion of slag wool in no case exceeding 60 per cent, and the product is compressed.  The Specification as open to inspection under Sect. 91 refers to the use, instead of slag wool wadding, of slag wool with short or long fibres. This subject-matter does not appear in the Specification as accepted.
Patent GB-1500148-A (GB)
Title: Apparatus and a method for loosening and spreading a crop which has to be ensiled
IPC: A01F25/18
Filed: 1975-04-10
Abstract: 1500148 Spreading grass J VAN DER VLIERT 10 April 1975 [10 April 1974] 14772/75 Heading A1F A device for loosening and spreading cut grass to be ensiled comprises a rotor mounted on a vertical axis and including a peripheral support member in the form of a cylindrical ring 18 on which are fixed a plurality of pins 21 each extending downwardly and outwardly therefrom, the rotor also including a plurality of further pins 19, 20 fixed thereto which extend downwardly and are spaced radially inwardly of the support member. The rotor is driven via a shaft 15 from a tractor.
Patent GB-989178-A (GB)
Title: Electronic systems for electrifying enclosures
IPC: H05C1/04
Filed: 1961-04-24
Abstract: 989,178. Supply systems for electric fences. LENSTITE CO. Inc. April 24, 1961 [May 4, 1960; Sept. 21, 1960], No. 14773/61. Heading H2H. [Also in Division H3] A touch-operated electric fence energizing circuit comprises a transformer T1 whose primary winding P1 is connected between a low-voltage source G and the fence F which causes a voltage pulse to appear in the secondary winding S1 when the fence is shunted to earth 7. The pulse is amplified through transistors Tr1-Tr3 to operate a relay RL connecting through contacts M a high-voltage transformer primary winding P2 to the source G, the secondary winding S2 energizing the fence when the relay de-energizes. An alarm SO may also be operated by the relay. Diodes D1, D2 form a voltage limiting circuit for transistor Tr1. Breaking of the fence wire will also operate the alarm. Another arrangement is described in the Specification utilizing a single transformer in place of T1 and T2, and in a modification the relay RL is replaced by a transistor. Further circuits are described enabling existing continuously running fence energizing circuits to be adapted to touch operation. An additional embodiment incorporates a transistor oscillator developing a D.C. output which is arranged in series with the source G in the touch circuit.
Patent GB-691654-A (GB)
Title: Reflector support mechanism
IPC: F21V17/16
Filed: 1951-06-21
Abstract: 691,654. Lighting fittings. SYLV‚NIA ELECTRIC PRODUCTS, Inc. June 21, 1951 [July 6, 1950], No. 14804/51 Class 75(ii) A lighting fitting has a reflector 3 detachably secured to a chassis 1 by a latch 4 depending from a strap 8 which extends across the chassis 1, the latch 4 being urged into its reflector-securing position by a looped-wire spring member 14 which engages the latch 4 and has its ends extending through the strap 8. As shown the latch 4 has curved lugs 10 which allow rocking of the latch 4 on the strap 8 to disengage a latch shoulder 12, against the action of spring member 14, from the edge of a slot 9 in the reflector 3 througr which the latch ex tends. A retaining slot 13 is provided in the latch 4 to house the looped portion of the spring member 14.