baber/WOPTO huggingface dataset:
Patent GB-564665-A (GB)
Title: Improvements in electro-magnetic slip couplings, brakes and dynamometers
IPC: H02K49/02
Filed: 1942-12-18
Abstract: 564,665. Eddy current apparatus. ENGLISH ELECTRIC CO., Ltd., CARNEGIE, B. S., and AYRES, W. E. M. Dec. 18, 1942, Nos. 21115/43 (divided out of 564,635), 11059/43 and 20923/43. [Class 35] [Also in Groups XIX and XXXIV] An eddy current coupling, brake, or dynamometer comprises two relatively rotatable elements, one of which is a field system of the central coil heteropolar type, whilst the other is a secondary system of the kind consisting of an unlaminated magnetic core, the surface of which is provided with a pair of spaced rings of greater circumferential conductivity than the part between them. The core may be of a type described in Specifications 234,191, 266,780, [both in Class 35], and 551,414, having its surface provided with a number of teeth extending in the form of the conductor bars of the squirrel cage winding between end rings formed integrally with the teeth and with the rest of the core. Alternatively, each end of the secondary system may have a ring of material of greater electrical conductivity than the rest of the core, either additional or in place of the integral rings. The secondary system may surround, or be surrounded by the field system. As shown in Fig. 1, the field system, mounted on a shaft 10, comprises a central coil 1 surrounded by magnetic rings 5, 6 provided with imbricated poles 5a, 6a, which co-operate with a secondary system comprising rings 18a connected by a reduced portion having spaced teeth 18b projecting towards the poles. When the device is used as a brake, the secondary member is stationary and may be provided with fins 18c projecting into an annular channel through which cooling fluid is passed. In the construction shown in Fig. 4, the field system is of the form described in Specification 564,635 and comprises oppositely acting coils 1,2, sandwiched between magnetic discs 5-7 which terminate in imbricated poles 5a, 6a, 7a, the latter cooperating with the secondary member consisting of rings 18a connected by a reduced portion having teeth 18b, the secondary system being supported from the driving shaft 11 by a disc 17. The field system is carried by a disc 14 welded to the disc 7 and to a hub 16 which is bolted to the driving shaft 10. The pole faces of the field system may be slotted along their length to form thereon two or more teeth whereby the frequency current induced in the secondary system is increased.
Patent GB-524194-A (GB)
Title: Improvements in or relating to ganged-condenser systems
IPC: H01G5/38
Filed: 1939-07-20
Abstract: 524,194. Variable condensers. PHILIPS LAMPS, Ltd. July 20, 1939, No. 21151. Convention date, July 23, 1938. [Class 37] In a sliding-electrode ganged condenser, the carrier or carriers 8, 9, supporting the transversely extending bottom plates 11, 13, 15 of the fixed electrodes 1, 3, 5, are rigidly secured to the condenser structure 17, 18 at only one place or end, for example, as shown soldered at 21, 22 while being slidably supported at 19, 20 to accommodate for strains due to fixing or temperature.
Patent GB-949358-A (GB)
Title: A floating bait dispenser
IPC: A01K97/02
Filed: 1962-06-01
Abstract: 949,358. Fishing gear. C. I KNOWLES. July 20, 1962 [June 1, 1962], No. 21179/62. Heading A1A. A buoyant bait dispenser comprises a perforated bait container 2 detachably secured to a water tight hollow member 1. The bait container has a perforated inner lining 4 free to move within the container. The bait container 2 and the water tight member 1 are secured together by a coupling comprising a threaded nipple on the end of a tube extending through the water tight member 1 and a threaded socket on the end of a tube extending through the bait container.
Patent GB-222629-A (GB)
Title: Improvements in or relating to frames for motor cycles
IPC: B62K11/04
Filed: 1923-08-22
Abstract: 222,629. Enfield Cycle Co., Ltd., and Smith, R. W. Aug. 22, 1923. Tubular and rod constructions.-A frame for motor-cycles comprises a triangular rear structure 6 and converging bars 3, 4 terminating in a curved or ring portion 2, which is brazed or welded to the head 1 and supports a transverselydisposed cylindrical tank. The ring 2 is of D- shaped cross-section, with the flat surface inwards. In the case of a lady's machine, the tube 4 is secured to an intermediate part of the saddle tube 6, a curved strut 8 being provided, while in the case of a gentleman's machine, the tube 4 is secured to the top of the tube 6, as shown in dotted lines. Brackets 7, 5 are connected to the engine.
Patent GB-814727-A (GB)
Title: Improvements relating to containers capable of being nested or stacked
Inventor: WOODS EDGAR CHARLES
IPC: B65D21/04
Filed: 1955-07-22
Abstract: 814,727. Stacking and nesting containers. JOHN BULL RUBBER CO. Ltd. July 23, 1956 [July 22, 1955], No. 21228/55. Classes 18 and 66. An open topped container is shaped to taper externally and internally towards a rectangular base to receive a similar container in nesting relationship, Fig. 4, the upper edges of the longer walls 3 having recesses 7 in which the shorter sides of the base of a similar container can be supported in stacked relationship, Fig. 6, when such a container is lifted from its nesting position and turned 90 degrees about a vertical axis. The recesses 7 may extend outwardly to form handles 6. The overall plan dimension across the handles 6 is equal to the maximum dimension between the shorter walls 2. The containers may be moulded from hard rubber, plastic or other suitable material.
Patent GB-1164338-A (GB)
Title: Superconductive Electromagnet Apparatus.
Inventor: WEAVER HARRY EDWARD JR
IPC: G01R33/3815
Filed: 1967-05-08
Abstract: 1,164,338. Superconductor magnets. VARIAN ASSOCIATES. 8 May, 1967 [11 May, 1966], No. 21246/67. Headings H1K and H1P. In a superconductor solenoid magnet system axial field gradients of the main solenoid are cancelled by one or more orthogonally arranged coils operating in the persistent mode and magnetically coupled to the main winding so that the gradient-cancelling effect is maintained when the intensity of the main magnetic field is varied. In a first embodiment, Fig. 1 (not shown), the gradient cancelling coils (56) are energized from a D.C. transformer, Fig. 6 (not shown), the primary of which is connected in series with the main solenoid. The current in each of the transformer secondary windings can be individually adjusted by rotating an armature about which it is wound. The gradient cancelling coils 56 may be arranged about the main solenoid as illustrated in Fig. 4. In a second embodiment, the gradient cancelling coils are arranged inside the main solenoid and have their ends connected together so that the field gradients induce currents in the coils, and the coils are thus self-adjusting. In a further embodiment, Fig. 5 (not shown), each gradient cancelling coil is provided with a persistent current switch and the coils may be sequentially connected to a controllable power supply by means of which the desired energizing current can be established in each coil before it is switched to the persistent mode.
Patent GB-406923-A (GB)
Title: Device for the production of galvanic coatings
IPC: C25D17/00
Filed: 1933-07-28
Abstract: 406,923. Electroplating apparatus. SOC. D'ELECTRO-CHIMIE, D'ELECTROMETALLURGIE ET DES ACIERIES ELECTRIQUES D'UGINE, 10, Rue du General Foy, Paris.-(Assignees of Bornhauser, O. ; 3, Rue Touche-Molin, Strasbourg, Bas-Rhin, France.) July 28, 1933, No. 21301. Convention date, July 29, 1932. [Class 41.] An electrolytic cell for use in the production of galvanic coatings comprises a chamber having flexible walls-e.g. of rubber-capable of being closed in a fluid-tight manner and capable, when the pressure outside the walls exceeds the pressure inside, of enveloping closely the object(s) to be coated, and comprises a series of conducting studs having relatively long projections which pass through the walls and into the chamber and a series of relatively short conducting studs, the two series being insulated from each other and the longer studs forming the cathode and the shorter the anode, the studs being so distributed over the surface of the walls of the chamber that, under the conditions of pressure referred to, the long studs will come into contact with and the short studs will remain at a distance from the objects to be coated. As shown, the chamber is in halves hinged together and provided with a fluid-tight liner 5 in which are embedded two pipes 6 by which electrolyte is supplied to and removed from the chamber through perforations in the liner being circulated by a rotary pump ; any gas which is formed is removed with the spent electrolyte which is discharged into an open vessel before being recirculated. If the anodes are to be consumed small pieces of the requisite metal may be attached to the inner ends of the short studs 3. The chamber is tiltable about an axis 7. The chamber may house a non- conducting receptacle for holding small objects to be coated, the long studs 2 passing through apertures in the sides of the receptacle.
Patent GB-1323826-A (GB)
Title: Process for electroplating with ni-fe alloy
IPC: H01F41/26
Filed: 1971-04-19
Abstract: 1323826 Electro-plating with nickel-iron alloy HITACHI Ltd 19 April 1971 [6 Feb 1970] 21313/71 Heading C7B An Fe-Ni permalloy film, e.g. 80% Ni-20% Fe for a memory element and having uniform composition throughout its thickness and zero magnetostriction co-efficient, is electro-plated, e.g. on to a Ag or Au wire, from an acidic electrolyte containing ferrous and nickel salts, e.g. sulphate, chloride or sulphamate, in which the Ni concentration is 0À02 to 0À15 mol/l and the weight ratio of Ni: Fe is 4 to 20:1, using a constant D.C. density greater than 5A/dm<SP>2</SP>. The wire 3 may be continuously passed in succession through a pre-treatment device 6, a rotating cylindrical agitator 4 in the electro-plating bath 1 between rinsing devices 8, 8' and a heat-treatment device 9 e.g. an electric ageing furnace, whilst actuating power source 15 to provide D.C. in the bath and A.C. in the wire. The electro-plated wire 12 has an axis of easy magnetization in the peripheral direction.
Patent GB-1302356-A (GB)
IPC: B65H49/04
Filed: 1970-05-04
Abstract: 1302356 Doffing and donning supply bobbins MURATA MACHINERY Ltd and DAIWA BOSEKI KK 4 May 1970 [2 May 1969] 21324/70 Heading D1J Apparatus for doffing and donning bobbins for supplying yarn to a winding machine comprises a bobbin supporting peg 7 rotatably mounted on a stationary shaft 3, and urged towards an upright position, in which yarn may be withdrawn from the bobbin, by a spring 10; an axially movable rotatable shaft 13 provided with means 14 for engaging a peg support 9 and turning it, against the action of the spring, so that the peg 7 is horizontally or downwardly directed; a bobbin carrier 17 mounted on a pivoted arm 16 and movable into alignment with the peg in its horizontal position; a lever 18 for displacing a bobbin from the carrier 17 onto the peg; and a mechanism for operating the elements in a programmed sequence. When a bobbin on the peg 7 is detected as empty, shaft 13 is advanced and rotated through 180‹, so that the empty bobbin falls away. The peg is then turned to its horizontal position, the carrier advanced, and a fall bobbin moved from the carrier 17 to the peg 7 by lever 18, the carrier then being withdrawn, the peg returned to its upright position, and shaft 13 disengaged.
Patent GB-820190-A (GB)
Title: Silicon power rectifier
IPC: H01L21/24
Filed: 1957-07-05
Abstract: 820,190. Semi-conductor devices. STANDARD TELEPHONES & CABLES Ltd. July. 5, 1957 [July 6, 1956], No. 21378/57. Class 37. A molybdenum-silicon structure comprises a silicon body, a molybdenum body adjacent said silicon body and a layer of a material consisting predominantly of gold disposed therebetween and in intimate contact therewith joining said bodies to form an adherent bond. The silicon power rectifier shown comprises a molybdenum base' 2 on which an N-type silicon disc 4 is mounted by means of antimony-doped gold solder 3. An acceptor impurity material such as aluminium 5 is fused to the upper surface of the silicon disc. A molybdenum electrode 6 is attached to the aluminium 5 and a nickel-clad copper wire 7 is welded to the electrode 6. The acceptor type impurity material may contain other Group III elements of the Periodic Table such as B, Ga, In and Tl. The silicon may be P-type, in which case various donor impurities or alloys thereof selected from Group V elements such as P, As, Sb and Bi may be used. In preparing the rectifier a single-crystal silicon ingot is sliced into wafers which are then etched. An aluminium and a molybdenum disc and a gold foil containing 1% antimony are cleaned by etching and the molybdenum outgassed. The cleaning of the bottom surface of the molybdenum disc prepares it for soldering to a copper heat sink. The components of the rectifier are then placed under compression in a helical spring holder which is placed on a tungsten strip through which current is passed to heat the assembly to about 750 C. for about 15 secs. in an atmosphere of pure hydrogen or other non- oxidizing gas such as helium, neon, argon or nitrogen, thus forming a P-N junction and simultaneously bonding the molybdenum to the silicon. The temperature to which the assembly is heated is below the melting points of silicon, molybdenum and gold, but is above the eutectic temperature of gold-silicon alloy. Prior to encapsulation the junction may be treated to improve the rectification characteristics, and the rectifier may also be subjected to a known electrical forming operation.
Patent GB-575935-A (GB)
Title: Steam power plant with particularly high superheating temperatures
IPC: F22G1/00
Filed: 1943-12-22
Abstract: 575,935. Steam superheaters. AKT.-GES. BROWN, BOVERI, & CIE. Dec. 22, 1943, No. 21489. Convention date, Dec. 22, 1942. [Class 123 (iii)] Steam is superheated in two stages, first to a temperature considerably below 500‹ C. in the superheater 2 of the steam boiler 1, and then up to an operating temperature considerably above 500‹ C. in a separately fired superheater 12 heated by hot gases coming from a pressure-fired combustion chamber 14 and passing along the heating surfaces of the superheater at a very high velocity as a result of a pressure gradient produced by a compressor 15 driven by a turbine 18 the motive gases of which are the hot gases from the superheater 12. In the form shown, the compressor 15 supplies air under pressure to the combustion chamber 14, and a reheater 13 is associated with the superheater 12 which receives steam direct from the superheater 2. Steam from the superheater 2 may however be used in at least one turbine stage before the second stage of superheating is performed. An auxiliary electric motor or steam turbine 19 starts and helps to drive the compressor 15. The motor or turbine 19 may be used to regulate the speed of the compressor. To moderate the temperature of the combustion gases from the chamber 14, some of the gases leaving the reheater 13 are returned by a blower 20 to mix with the hot combustion gases. The exhaust gases from the turbine 18 may be passed to the steam generator, or used to heat the feedwater or the air supplied to the chamber 14. Feedwater is also heated in the heaters 22 by exhaust steam from the turbines.
Patent GB-500216-A (GB)
Title: Improvements in blood transfusion apparatus
IPC: A61J1/00
Filed: 1937-08-04
Abstract: 500,216. Blood-transfusion apparatus; stoppers. TENNANT, W. J. (Cooksey, W. B.) Aug. 4, 1937, No. 21539. [Class 81 (ii)] [ Also in Croup XVII] Blood-transfusion apparatus comprises a container such as a bottle A having a rubber closure pad held thereon by a screw cap C, the closure having two passages receiving respectively a tube 17 connected by a rubber tube 17a with the donor's needle, and the nipple of a suction bulb D having ball-valves. The cap C carries a handle 21 having a lateral extension 22 which protects the tube l7 and serves as an abutment for compression of the bulb D by the operator. A bail 13 for suspending the bottle in inverted position is secured to a band 12 arranged between ribs 12a, on the container. The rubber closure has an eccentric boss 20 which projects through a similarly shaped. aperture in the cap C to position tube, bulb and handle, correctly. In use, the bulb is operated, to draw blood from the donor and the container held and constantly agitated, by a single hand of the operator who can thus .carry out the transfusion without. assistance. Sodium citrate solution is first drawn into the container to prevent clotting. After collection of the blood, the bulb D is replaced by an injection tube, tube 17a is removed, and tube 17 pressed down to the bottom of the container to serve as an air inlet after the latter has been suspended inverted by the bail 13. The outlet ball-valve of the bulb D has a tapered seating, the angle of the sides of which is about 10‹ to the vertical.
Patent GB-1161838-A (GB)
Title: Arrangement in or relating to Structural Plates.
IPC: E04C2/20
Filed: 1967-05-09
Abstract: 1,161,838. Facing panels. NESSEPLAST - KARE E. NESSE. 9 May, 1967 [12 May, 1966], No. 21575/67. Heading E1B. A rabetted joint between adjacent plates I and 2 of an insulating facing has a continuous tongue 4 providing self-locking engagement in a continuous groove 3, the plates being secured to a surface by nails accommodated in a groove 5. Each plate may be produced from two separate plate elements mutually diagonally offset.
Patent GB-1493896-A (GB)
Title: Electronic time and temperature measuring system
IPC: G04G99/00
Filed: 1975-05-20
Abstract: 1493896 Measuring temperature electrically AMERICAN MEDICAL ELECTRONICS CORP 20 May 1975 [28 May 1974] 21576/75 Heading G1N [Also in Divisions H3 and H4.] Apparatus for measuring temperature using an electric temperature sensor comprises a timing circuit for delaying indication of the temperature signal for a pre-set time interval and augmenting the measured temperature signal by a quantity dependent on the temperature signal gradient to develop a voltage corresponding to ultimate temperature, which is converted to a digital value for display. As shown, Fig. 2, the signal from a temperature probe 20 is developed in a bridge circuit 24 and fed on line 28 to anticipation circuit 30 where it is augmented by a quantity determined by the signal rate of change to produce a voltage at 32 representing the final value of the temperature signal. The difference between this value and a reference voltage on line 26 is integrated at 34 to produce a ramp voltage which triggers pulse generator 36 at a pre-set value. A negative going pulse is produced which is inverted at 40 and added to the temperature signal at 32 to equalize the input voltages to integrator 34 and terminate the ramp voltage. When the added pulse is completed the integrator 34 again forms its ramp voltage output and the cycle is repeated. The feedback pulses have a frequency proportional to the difference between the temperature signal at 32 and the reference voltage on line 26, and therefore indicative of the augmented temperature signal. The measuring sequence is controlled by logic network 54. When switch 58 is operated, network 54 feeds pulses from clock 56 via counting circuit 42 to a display 44 for a pre-set period. At the end of this period the counting and display units are fed with pulses from generator 36 to indicate the measured temperature. At the end of a further pre-set period the system is automatically deenergized. Power for the system is obtained from supply source 46 and converted to a regulated voltage at 50. The two voltages are compared at 52 and when the level at the supply source 46 falls, a signal from 52 extinguishes the last digit of display 44.
Patent GB-1187993-A (GB)
Title: Buffer-Attached Helmet and the Production Method Thereof.
Inventor: ARAI HIROTAKE
IPC: B29C44/12
Filed: 1967-05-10
Abstract: 1,187,993. Helmets. H. ARAI and M. ARAI. 10 May, 1967 [27 July, 1966], No. 21612/67. Heading A3V. [Also in Division B5] A helmet comprises an outer shell 2 and a "head-shaped" shell 5 with a layer of resilient foam 4 between them. The foam may be a polyurethane foam containing particles 6 of cork or preformed foam to reduce its density.
Patent GB-532806-A (GB)
Title: Improvements in cigarette cases
IPC: A24F15/18
Filed: 1939-07-25
Abstract: 532,806. Igniters combined with cigarette cases. BERNHARDT, E. July 25, 1939. No. 21628. [Class 75 (iii)] [Also in Group XVII] In its closing movement, the lid 22, Fig. 6, of a cigarette case moves a lever 21 and causes an inclined cam surface 25, Fig. 2, thereon to slide on the inside face of a surface 26 and thereby operate the trigger 11, Fig. 1, of a pyrophoric lighter. When the case is completely closed the cam surface 25 is clear of the surface 26 and the trigger 11 has resumed its initial position; during the subsequent opening of the case, the surface 25 slides along the outer face of the surface 26 this being permitted by a transverse movement of the lever 21 against the action of a spring 28. The spring 15 may be moved by a handle 18 out of engagement with an abutment 19 and into a position releasing the flint 16. The igniting device has walls 3, Fig. 5, slidably mounted in the fuel container 5 relative movement between the two being prevented when the lighter is in the cigarette case by a spring 29 engaging a depression 30.
Patent GB-417409-A (GB)
Title: Improved suspension device for geographical or like globes
IPC: G09B27/08
Filed: 1933-08-01
Abstract: 417,409. Globes. PHILIP & SON, Ltd., G., and YOUNG, F. S., 32, Fleet Street, London. Aug. 1, 1933, No. 21637. [Class 146 (ii).] A geographical or like globe is suspended with its polar axis at the correct inclination by means including one or more flexible members such as cords which are wound on a rotatable roller, provided with locking means such as a pawl and ratchet for locking the roller so as to permit the globe to be held suspended at the required height. The support 10 carries a spring roller 12 of the roller-blind type having a pawl-and-ratchet action 13 controlled by a check cord 14, and two cords 15 are attached to the roller and to a horizontal bar 16 on which a ball 17 is slidably mounted and can be fixed in position by a set-screw 18. The globe 19 carries a stud 20 which screws into the ball 17, the axis of the globe being inclined at 23¢‹ to the horizontal. An operating cord 23 is attached to the lower end of the globe. Loops 24 and rubber buffers 25 may be provided to prevent damage as the globe rises, and other forms of spring roller, such as that requiring a preliminary pull on the cord 23 to raise the globe, may be employed.
Patent GB-389005-A (GB)
Title: Improvements in method of chlorinating sulphide ores
IPC: C22B1/08
Filed: 1932-08-03
Abstract: Materials containing metallic sulphides are heated and treated in the dry state with a mixture of chlorine and oxygen-containing gases. The ratio of oxygen to chlorine may be from 5 : 2 to 3 : 1, whereby metal oxychlorides and sulphur dioxide are obtained. In treating molybdenum sulphide ores a temperature up to 375 DEG  C. is used with volatilization of the oxychlorides formed, which may be purified from iron by revolatilization at 125 DEG  C.  Zinc sulphide ores should, if necessary, be diluted with inert material such as sand to give a mixture containing 10 per cent of zinc sulphide.  The process is then carried out at 310-320 DEG  C. and the zinc oxychloride formed leached out.  The process is also applicable to nickel and copper sulphides, and to copper-nickel sulphide mattes; the mattes give a mixture of sulphates and oxychlorides without producing sulphur dioxide when a temperature of 310-320 DEG  C. is used.