baber/WOPTO huggingface dataset:
Patent GB-326147-A (GB)
Title: Improvements in the securing of friction facing members
IPC: F16B19/06
Filed: 1928-12-04
Abstract: 326,147. Soc. Anon. Franþaise du Ferodo. Oct. 18, 1928, [Convention date]. Blocks and shoes.-Friction facings 2 for use in clutches, brakes, &c. are secured in their supports 3, which may constitute or may be removable from the main elements, by rivets or pegs 1 formed of material capable of hardening by polymerisation such as braided asbestos impregnated with synthetic resin which may be shaped in position under heat and pressure, Fig. 1, to polymerize and harden them. In the modification shown in Fig. 2, the material is first thus hardened and then placed in position in its finished form and has imbedded therein a bifurcated metallic pin 6 which is turned down over the support 3. The pin may be replaced by an internally screwed socket in which is inserted a large-headed set-screw. According to the Specification as open to inspection under Sect. 91 (3) (a) the rivet may consist of two parts of plastic material screwed together. Further, facings may be secured on opposite sides of a metallic support, the rivet consisting of tapered parts secured in holes in the two facings, the parts being secured together by a device such as is used for spring pressure buttons. This subject-matter does not appear in the Specification as accepted.
Patent GB-1355197-A (GB)
Title: Device for removing hydrogen from liquid sodium
IPC: C22B26/10
Filed: 1971-07-29
Abstract: 1355197 Refining sodium TOKYO SHIBAURA ELECTRIC CO Ltd and NIPPON  ATOMIC INDUSTRY GROUP CO Ltd 29 July 1971 [3 Aug 1970] 35768/71 Heading C7D Hydrogen in sodium contained in container 3 Fig. 2, or flowing through tube 1, Fig. 3, separates from the sodium by passing through semi-permeable membrane 2. In Fig. 2 bellows 6 is also a hydrogen permeable membrane and can be heated to 100-200‹C by heater 7 to allow hydrogen to diffuse faster into the atmosphere to thus reduce the pressure in the bellows and improve the separation of hydrogen from the sodium. In Fig. 3, palladium or platinum sponge 8 absorbs hydrogen passing through membrane 2 to maintain a steep hydrogen concentration gradient for improved separation of hydrogen from the sodium. The membrane 2 may be nickel, palladium, tungsten platinum.
Patent GB-1387253-A (GB)
Title: Magnetic memory
IPC: G05D3/14
Filed: 1973-07-26
Abstract: 1387253 Automatic control of position INTERNATIONAL BUSINESS MACHINES CORP 26 July 1973 [5 Sept 1972] 35770/73 Heading G3R In a system for maintaining the position of a control transducer relative to a contiguous pair of control tracks recorded on a magnetic medium, and hence the position of an associated data transducer relative to a data track, by separating the signals produced by the respective control tracks and using any difference in their amplitudes to adjust the position of the transducers, the gain of the system is automatically controlled by an AGC circuit in response to the difference between the sum of the separated signals and a reference, and the gain can also be adjusted (by substitution of components) by an amount dependent on the gap width of the control transducer so that a standard control signal is produced for a given position error. The control signals are separated in "demodulator" 4; 5 is the differencing circuit in position control loop 3, 4, 5, 7, 8 and 6 is the adding circuit in AGC loop 3, 4, 6, 9. It is stated that this arrangement compensates for gain variations due to "flying height" of the transducer and track irregularities but not for gap width. For this purpose a suitable value of resistance is inserted at 10, 11 or 12, or a combination of such resistors is used. The value is determined either by testing the transducer in a specially constructed reproducer, or by moving the transducer across the tracks at a given velocity, and differentiating the output of differencing circuit 5 at 26. The output of 26 depends only upon the loop gain, which is then standardized by the resistor. The system can be used with reproducers having permanent disc tracks and transducer, a single drive and servo unit with interchangeable discs and transducers or a single drive unit with interchangeable servos as well. In the latter two cases the resistors are mounted with their associated transducers, Figs.3  and 4 (not shown). The positioning arrangement may use mechanical linkage associated with an optical interferometer.
Patent GB-431997-A (GB)
Title: Improved means for conducting current to the carbons of projection arc lamps
IPC: H05B31/18
Filed: 1934-03-01
Abstract: 431,997. Arc lamps. ZEISS IKON AKT.-GES., 72, Schandauerstrasse, Dresden, Germany. March 1, 1934, No. 35875. Convention date, March 15, 1933. Divided out of an application under which a Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 17, 1934. [Class 39 (i)] In a projection arc lamp, the current conducting means for the positive carbon comprise a plunger adapted to press the carbon against an abutment which is adjustable so that carbons of different diameters may be mounted with their axes in the optical axis of the lamp. The abutment may be a vertically adjustable prismatic holder 5 against which the carbon is pressed by a plunger 4 actuated by a weighted lever 7. The weight 8 is adjustable on the lever arm to enable the pressure of the plunger to be varied. The holder is supported from the base of the lamp through an insulating layer 12. The Specification as open to inspection under Sect. 91 comprises also a support rigidly connected to and insulated from the base of the lamp so as to hold the carbon in a fixed position and the use of gravity controlled clamping means for the carbon. This subject-matter does not appear in the Specification as accepted.
Patent GB-819525-A (GB)
Title: Improvements in semi-conductor current controlling devices
IPC: H01L21/00
Filed: 1955-12-14
Abstract: 819,525. Semi-conductor devices. GENERAL ELECTRIC CO. Dec. 14, 1955 [Dec. 22, 1954], No. 35912/55. Class 37. [Also in Group XXXVIII] A semi-conductor device comprises a body of pure crystalline Si, i.e. containing less than 1014 atoms/c.c. of uncompensated activator impurities, impregnated with between 10<SP>12</SP> and 2x10<SP>14</SP> atmos/c.c. of iron. Such a body is preferably made by seed crystal withdrawal from a pure Si melt containing from 0.001- 0.1 per cent by weight of iron, the larger quantity of Fe being required when the purity of the Si is less. Alternatively Fe is diffused into pure Si at about 1,000 C. Low resistance non-rectifying connections to the body are made by fusion of indium gold alloy, gallium gold alloy or aluminium to the silicon. The Fe impregnated Si is of high resistivity and exhibits large thermoconductive and photoconductive effects in the temperature range from -100 to +100 C. A thermoconductive device of bar form with an electrode at each end forming part of a normally balanced bridge circuit the output of which after amplification is measured or used to effect a control is described (Fig. 1, not shown). A photoconductive device forming part of a series control circuit comprises a wafer with a ring electrode on its light exposed surface and the other electrode on its opposite surface, and is mounted in a vacuum vessel containing liquid nitrogen so as to give the maximum response to infra-red radiation.
Patent GB-808319-A (GB)
Title: Improvements in blowing cores for castings
Inventor: WILKINS JOHN ADAMS
IPC: B22C15/24
Filed: 1955-12-14
Abstract: 808,319. Core-making machines. STANTON IRONWORKS CO. Ltd. Dec. 14, 1955, No. 35928/55. Drawings to Specification. Class 83 (1). Core-blowing apparatus includes a vessel from which sand is driven in a stream of air into a core-box lying beneath the vessel and having an open bottom, mechanism for carrying a series of core-supports successively into and out of register with the bottom of the core-box, and means for automatically admitting air under pressure to the vessel after each support has been carried into register, and releasing air through a port in the vessel before each support is carried out of register. The core-blower is as described in Specification 776,031, which is referred to, and the pneumatic operating-means are controlled by valves actuated by a motordriven cam-shaft.
Patent GB-1511107-A (GB)
Title: Measuring and dispensing device
IPC: G01F11/18
Filed: 1976-08-31
Abstract: 1511107 Metering apparatus ENGELHARD MINERALS & CHEMICALS CORP 31 Aug 1976 [2 Sept 1975] 35931/76 Heading B8N A device for metering granular material or liquid, e.g. mercury for making teeth fillings, comprises a measuring and dispensing member 20 slidable in a casing and provided with a measuring chamber 22 whose volume can be adjusted by a manually actuated plunger 24. The plunger is spring-biased away from the measuring chamber and retained in the required position by a wedge cam 30. The cam has markings and is held in the required position by a cap 29. The device is mountable on a bottle, Fig. 1 (not shown), and operated with the bottle inverted. The dispensing member 20 is spring-biased to the fill position.
Patent GB-1196608-A (GB)
Title: Improvements Relating to Printing Machines
Inventor: EARSDON JOHN FRANCIS
IPC: B41F1/08
Filed: 1967-08-07
Abstract: 1,196,608. Printing apparatus. MORRISH & CO. Ltd. 6 Aug., 1968 [7 Aug., 1967], No. 36072/67. Heading B6C. [Also in Division B8] Tapes to be printed on are fed intermittently between downward-facing stationary flat platen 40 and oscillating forme bed 41, which bears a plate inked by travelling rollers. From a reel 2 in tape magazine 1 each tape passes through the nip of a pair of driving rollers, one of which is rotated intermittently and advances the tape in incremental steps, is printed on and is reeled on a former 9 rotated by belt or chain 10 in synchronism with the movement of the driving rollers. After printing, the tapes move over guides 21, 22 with their printed sides outwards, so avoiding smudging. The length of tape advances and printed on during each episode of feeding may be adjusted both by a coarse means involving alternate placement of a pin in holes in a crank arm and by fine adjustment of the stroke length of a driving rack in a train driven by the crank, using a screw jack. When a reel of tape is complete on a former 9, the tape may be cut by knife 8, a new former swung into position and sufficient extra length of tape to allow it to be attached to the former obtained by pivoting bracket 7. When printing recommences bracket 7 is returned to its original position by a drive from forme bed 41. Trade circulars, tickets and other sheet products may be printed instead of tapes, and reeling of the printed product be replaced by severing of a web into sheets by a guillotine. Two or more colours may be printed, each with its own inking apparatus. Changeover from single colour working to multi-colour printing may be accomplished by changing the number of sets of inking apparatus and proportionately changing the length of advance of the web at each step. Safety guards G1, G2 are arranged to prevent operation of the machine until they are in positions preventing access to the driving rollers.
Patent GB-393517-A (GB)
Title: Improvements in or relating to actuating mechanisms for bascule bridges or lever draw-bridges
IPC: E01D15/06
Filed: 1932-12-21
Abstract: 393,517. Bridges. WERKSPOOR NAAMLOOZE VENNOOTSCHAP, 62, Oostenburgermiddenstraat, Amsterdam. Dec. 21, 1932, No. 36200. Convention date, Jan. 25. [Class 20 (i).] A bascule bridge having a fixed axis of rotation, or a lever draw-bridge, has a slide way 3 provided in the end of the bridge member or beam lever 2 to co-operate with a roller 4 adapted to be rocked round a fixed axis 7 by means of a quadrant 6 and pinion 8, the ends of the slideway being tangential to the circular arc described by the roller, so that the load on the driving motor is zero in these positions, and the movement of the bridge is slower as it is raised and the wind pressure on it increases. The inner extreme end of the slideway may be inclined slightly from this position so that the roller locks the bridge. Fig. 6 shows the application to a lever-arm bridge in which the beam 12 has the slideway 11 co-operating with a roller 4, which rotates it on the pivot 1 disposed at the upper end of a standard.
Patent GB-1524826-A (GB)
Title: Plug-in modular system for preventing tripping of circuit breakers by electric motors during startup
IPC: H02H3/093
Filed: 1975-09-03
Abstract: 1524826 Time delay protective systems WESTINGHOUSE ELECTRIC CORP 3 Sept 1975 [9 Sept 1974] 36206/75 Heading H2K  The generally-inverse time-current characteristic of an overload detecting circuit is modified so that, no matter how large the overcurrent, no circuit breaker tripping signal can be generated before the expiration of a predetermined minimum time interval by providing a zener diode 20<SP>1</SP> to limit the maximum signal that can be supplied to the time delay circuit R9, R10, C1. A current sensing network 12 provides, across a resistor 18, a charging voltage dependent on the current(s) in a polyphase, single-phase or D.C. line L1-L3. Provided there is no overcurrent, this voltage keeps transistors Q1 and Q2 on, thus preventing any accumulation of charge on the capacitor C1. When an overcurrent occurs, the charging voltage rises and, because of the fixed emitter bias provided by zener D14, Q1 cuts off, switching off Q2 so that C1 can now charge, at'a rate dependent on the overcurrent. When the capacitor voltage reaches a sufficient level, snap-action switch Q3, Q4 switches on to discharge a second capacitor C2 through (i) a relay coil RA1, and (ii) a further capacitor C3. Energization of the relay coil RA1 immediately disables a thyristor Q7 to interrupt the holding current of a circuit breaker K, and the charge accumulated on capacitor C3 prevents reestablishment of this holding current for a fixed time delay, determined by the discharge time constant of the capacitor C3. The energizing circuit for the circuit breaker K comprises a pair of transistors Q5, Q6 which normally switch on just after the beginning of each half cycle of an energizing voltage to provide a firing signal to the thyristor Q7 for that half cycle. Charge on the capacitor C3, however, will prevent Q5, Q6 switching on in each half cycle before the rectified energizing voltage has risen sufficiently to break down LED D13, thereupon re-energizing the relay coil RA1. Relay RA1 has to be manually reset but will, of course, promptly reclose if it is reset before capacitor C3 has discharged.  The system is built in modular form as described in Specification 1,524,825.
Patent GB-907254-A (GB)
Title: Process of nickel plating aluminium and aluminium alloys
IPC: C23C18/18
Filed: 1960-10-21
Abstract: Aluminium and its alloys prior to nickel plating in an aqueous hydrophosphite chemical plating solution are alkaline etched and then pretreated in an aqueous solution comprising 0.1 to 30 parts by weight ammonia and 0.1 to 5 parts by weight of a complexing agent consisting of an aminocarboxylic acid or alkali metal, alkaline earth metal or ammonium salts thereof on an aliphatic hydroxycarboxylic acid or alkali metal, alkaline earth metal or ammonium salts thereof, the ammonia content being at least equal to the complexing agent. The preferred complexing agents are E.D.T.A. diethylene triamine pentacetic acid, monosodium E.D.T.A., disodium E.D.T.A., trisodium E.D.T.A., tetrasodium E.D.T.A., trisodium triethylene tetramine hexacetic acid, propylene diamine tetracetic acid and trisodium dipropylene triamine pentapropionic acid, gluconic, tartaric and citric acids. In an example, aluminium is cleaned in sodium hydroxide and then treated in an aqueous ammoniacal solution containing 3% ammonia, 2% ammonium citrate or 1% of an ammonium salt of E.D.T.A. Chemical plating was then effected in a hypophospite solution containing nickel ions at 90-95 DEG  C.  Plating in other buffered hyphphosphite type solutions such as the acetate, succinate or propionate may also be effected.  U.S.A. Specifications 2,532,283, 2,658,839, 2,658,841, 2,658,842, 2,694,017 and 2,694,019 are referred to.
Patent GB-1260600-A (GB)
Title: Improvements in or relating to presses
IPC: B65B27/06
Filed: 1970-07-27
Abstract: 1,260,600. Compacting and binding wire coils. COCKERILL - OUGREE - PROVIDENCE ET ESPERANCE - LONGDOZ. 27 July, 1970 [28 July, 1969], No. 36245/70. Heading B8C. A press for compacting coils of metal wire and for binding them with metal strips comprises a V-shaped coil support 2 mounted on a retractable platform 1 between a fixed shield and a mobile shield connected to an hydraulic compression jack 5 and carrying a jack 12 for inserting a device for guiding the binding strip. The chamber 5b of the jack 5 communicates with a medium pressure oleo-pneumatic pressure accumulator 6 which displaces the mobile shield towards the fixed shield, with a medium pressure pump 7 which feeds oil to the chamber 5b from a reservoir 14 when the pressure in the accumulator 6 falls below a given value and with a high-pressure pump 9 which feeds oil to the chamber 5b from the reservoir 14 after the pressure in the chamber 5b has risen to a certain value under the action of the pump 7. The high pressure pump 9 feeds oil until the required compacting pressure is reached and maintains this pressure with a substantially zero rate of flow during binding. The highpressure pump 9 also communicates with the other chamber 5d of the jack 5 to feed oil thereto after binding to cause the mobile shield to move away from the fixed shield and force the oil in the first chamber 5b into a low pressure oleo-pneumatic accumulator 11 which communicates with the jack 12 actuating the strip guide device, a jack 42 for opening the support 2 and with a jack 36 for pivoting a platform 4 for receiving the bound coils. The pumps 7, 9 are driven by a single electric motor 8. The interconnection of the pumps, accumulators and jacks is controlled by pressurestats and switches acting on electrovalves and is fully described. The duct 13 may be obturated by an electrovalve placed therein between the chamber 5d and a valve 9b and controlled from a switch 47 which is movable parallel to the displacement of the piston 5a and actuated by the piston-rod 5c or the mobile shield when the coils have been compressed to a given length.
Patent GB-895425-A (GB)
Title: Apparatus for making shell moulds or cores
Inventor: CLARKE JOHN EDWARD
IPC: B22C23/00
Filed: 1958-11-12
Abstract: 895,425. Moulding-apparatus. SHELL MOULDING FOUNDRY Ltd. Nov. 4, 1959 [Nov. 12, 1958; Feb. 26, 1959], Nos. 36303/58 and 6638/59. Class 83 (1). Apparatus for making shell moulds and cores of the type described in Specification 895,426 which is referred to, comprises a frame, a pattern-box carrier on the frame, feed means for blowing sand-resin mix into a pattern-box on said frame, means for inserting the carrier to discharge excess mix, and further feed means for blowing sand or other solid flowable packing material into the pattern-box whilst on the carrier. A pattern box 24 having electric heating elements 45 is carried on an arm 23 mounted on a cross-head 22 which is vertically adjustable by a screw 21. The arm is horizontally rotatable about a pillar 4, while the portion 25 carrying the box is rotatable about a horizontal axis 26 so that the box may be inverted. A pneumatic vibrator 27 is attached to the carrier. Containers 5, 6, for sand-resin mix, and sand, respectively, are dischargeable into measuring-chambers 7, 8. Sand-resin-mix may be blown from the chamber 7 through a pipe 11 to a feed chamber 12 with an outlet 15, controlled by an inflatable diaphragm 16, leading to a feed cylinder 18 which is vertically movable by a piston 20. Downward movement of the piston rod first seals the blowhead 18c, having a spring-loaded sealing plate 28, against the pattern-box inlet, the blowhead comprising outlets 35 closable by a diaphragm 36. Continued downward movement of the cylinder 18 then connects the interior to an air inlet port 33, whereby the mix is blown into the pattern box. The chamber 8 is connected by a pipe 41 to a feed head 42, which is movable horizontally by a piston 43, from the inoperative position shown to a position in which outlets 44 register with the pattern-box inlets, the feed head engaging in guides in the blowhead 18c, and being clamped to the pattern-box by the piston 20. When correctly positioned, sand is blown from the chamber 8 to the pattern-box.
Patent GB-446449-A (GB)
Title: Improvements in and relating to railway points
IPC: E01B7/18
Filed: 1934-12-18
Abstract: 446,449. Railway points and crossings. EICHELGRUN, M., 58, Hohenzollernplatz, Frankfort-on-Main, and JUDELL, O., 9, Hohenweg, Bad Nauheim, both in Germany. Dec. 18, 1934, No. 36351. Convention date, Dec. 18, 1933. [Class 104 (i)] In slip points with tongues situated outside the crossing and for double and three-throw points, the tongues 1 .. 4 are carried through the crossing by means of extensions 9, 10, and are held under tension by members 6. The parts of the tongues near the crossing may be operated by rodding 12 coupled to the ordinary lever rodding. The wing rails 14 opposite the parts of the tongues within the crossing may be provided with spring cases.
Patent GB-1190620-A (GB)
Title: Improvements in or relating to Hydraulic Buffers.
IPC: F16J1/08
Filed: 1967-08-08
Abstract: 1,190,620. Hydraulic buffers; bearings; pistons. HOUDAILLE INDUSTRIES Inc. 8 Aug., 1967 [1 Sept., 1966], No. 36438/67. Headings F2A, F2S and F2T. The piston 11 of an hydraulic piston-cylinder apparatus such as a buffer has axial passages 34 each of which communicates with a circumferentially elongate recess 38 in the piston periphery. Liquid flow from the cylinder by way of the passages to the recesses thus causes the piston to be hydrodynamically centred. Preferably, as shown, each recess communicates by a passage 34 with one face and by a passage 35 with the other face of the piston and the piston periphery has a maximum diameter somewhat less than that of the cylinder bore. The recesses 38 thus all open into an annular space between the piston and the cylinder: this space is axially bounded and sealed by piston rings 32 which are urged, against their own resilience, into contact with the cylinder by fluid in the passages 34, 35. The recess 38 shown is one of six such recesses distributed (as in Fig. 3, not shown) regularly about the piston periphery. In a buffer, fluid flow through the piston is controlled by valve elements 19, 22 and flow control means 10 to provide a damping action which is greater in one direction (rightward) of piston movement than the other. Each passage 34 also contains a valve ball 40 which shuts off either passage 34 or 35 from a radial bore 39 leading to the recess 38 and thereby allows piston-centering pressure to build up in both directions of piston movement.
Patent GB-1217807-A (GB)
Title: Gas turbine engine
Inventor: CAMPBELL DAVID ALEXANDER
IPC: F02C7/18
Filed: 1969-07-19
Abstract: 1,217,807. Gas turbine engines - compressors. ROLLS-ROYCE, Ltd. July 19, 1969, No.36458/69. Headings F1C and F1G. The invention relates to a gas turbine engine in which means are provided for reducing air frictional drag on the compressor rotor, there being means for tapping air from the main air flow through the engine and directing the air at an acute angle on to the face of the rotor disc and in the direction of rotation of the disc so that a rotating mass of high pressure air is provided adjacent the face of the compressor disc. In the gas turbine ducted fan engine shown air from the high pressure air compressor passes to the annular space 16 of the combustion equipment 14 and a portion of this air is tapped through duct 19 into an inner annular chamber 17. The air passes from the chamber 17 through a vane assembly 21 which directs the air into the chamber 22 at an acute angle on to the downstream face of the compressor rotor disc 25. The air finally passes through the annular chamber 26 and is further utilized for turbine cooling. In place of the duct 19, air may pass from the space 16 to the chamber 17 by way of an orifice 20.