baber/WOPTO huggingface dataset:
Patent GB-1277855-A (GB)
Title: Improvements in or relating to fluid control switching arrangements
Inventor: WARD EDWARD JOHN
IPC: F15C3/00
Filed: 1970-12-12
Abstract: 1277855 Valves NORCON (NORRIS) Ltd 12 Dec 1970 59173/70 Heading F2V A control valve, for a fluid switching device such as a main spool valve 3 having inlet 2 selectively connectible with outlets 4, 5 by a spool valve member (not shown), comprises a valve member slidably mounted in a bore 12. This valve member has a relatively thin needlelike intermediate portion 11 which is surrounded by a sealing ring 15 housed in the bore, and relatively thick end portions guided in the bore. One of the end portions is adjacent to or forms part of a closure 14 which is engageable with a seat. The other end portion is adapted to receive a thrust force applied by an actuator 21, 22. The device reduces frictional losses and hence the operating force required. As shown, the thick end portions are separately fastened to a central needle which has a ball closure end 14. The control valve may be operated by a fluid logic element.
Patent GB-1366949-A (GB)
Title: Synchronous electric machine
IPC: H02K19/20
Filed: 1971-12-22
Abstract: 1366949 Synchronous dynamo-electric machines HEEMAF NV 22 Dec 1971 [22 Jan 1971] 59536/71 Heading H2A In a dynamo-electric machine of the kind described in Specification 1,286,035, permanent magnets 37, 38 are located on the rotor circumferentially between the salient poles 24 of each rotor core, the magnets presenting to the stator poles of opposite polarity to that of the corresponding salient poles 24. The magnets are ceramic and are either annular segments, Fig. 3a, or rectangular blocks 39, 40, Fig. 4a. In the latter case the magnets have polepieces 41, 42 and holes 43-46 are punched in the rotor laminations to reduce leakage flux. The machine may be a motor or generator.
Patent GB-1312497-A (GB)
Title: Superconductor elements
IPC: H01L39/22
Filed: 1970-12-16
Abstract: 1312497 Superconductor devices HITACHI Ltd 16 Dec 1970 [29 Dec 1969] 59779/70 Heading H1K A Josephson junction device comprises a layer of hard superconductor material arranged between a pair of conductors of superconductor material, the lower critical magnetic field value of the hard layer being smaller than the lowest of the critical magnetic field values of the conductors. The device exhibits the A.C. Josephson effect at high power levels and emits radiation and may also be utilized for switching or memory applications. The conductors may be of Pb, Nb, or Ta and may be of different materials. The junction layer may be Pb-In, Nb-Mo or Nb-Tn alloy and have a thickness of several tens to several thousands of Angstroms. As shown, Fig. 5, a first layer 11 of Pb is deposited by vacuum evaporation utilizing a photomask on a glass or quartz substrate 10, a layer of In is vapour deposited and a further layer 12 of Pb is deposited during which step Pb diffuses into the In to form a Pb-In alloy layer 13. Alternatively, layers of Nb, Mo and Nb may be deposited and then heated to convert the centre layer to Nb-Mo alloy. The intermediate layer may be formed by vapour deposition of the alloy. In a second embodiment, Fig. 7, a Nb wire 14 is coated with Ta, Mo, Ta-Mo alloy or Nb-Ta alloy and secured to a glass substrate 10. A second Nb wire is then placed in contact with the film and a current is passed between the wires to join them and form an alloy layer 15.
Patent GB-1368977-A (GB)
Title: Attenuator apparatus
IPC: H01P1/22
Filed: 1971-12-23
Abstract: 1368977 Attenuator assemblies TEKTRONIX Inc 23 Dec 1971 [10 Feb 1971] 59952/71 Heading H1R Attenuator apparatus comprises a plurality of attenuator devices of different attenuation value mounted on a circuit board and connected to conductive strips thereon and switch means comprising fixed conacts and movable contacts attached to the circuit board for selectively connecting the attenuator devices in cascade. The attenuator devices, 10, 12, 14 and 16, Fig. 2, are plugged into the circuit board 54 and make contact with a printed conductor on the upper surface of the board which together with ground planes on the upper surface forms a transmission line. A transmission line of similar impedance is formed on the lower surface of the board and gauged switches on the upper and lower surface of the board are operable to route the signal applied at the input 22 to any selected combination of the attenuator devices. The switches are operated by cams 28 on a shaft 26 rotated by a knob 38. The construction of the switches is described and claimed in Specifications 1,368,979 and 1,368,980. A further shaft 30, surrounding the shaft 26 and rotated by an arm 40, carries cams 32 which operate further gauged switches on the top and bottom of the board to set up the input circuitry for A.C. or D.C. input and to ground the output of the attenuator. The attenuator devices, 10, 12, 14, 16, each comprise a distributed resistor extending between input and output, a resistor between the output and ground, a first conductor plane in  parallel with the input end of the distributed resistor, a second conductor plane in parallel with the output end of the distributed resistor and a third conductor plane on the opposite side of the distributed resistor and in parallel with both input and output ends of the distributed resistor. The first and second planes are connected to input and output respectively to form a coupling capacitor therebetween. The capacitance of the conductor planes is sufficiently small for the shunt current to be less than 5% of the series current over the operating frequency range of the device.
Patent GB-1246009-A (GB)
Title: Improvements in railway locomotive vehicles
IPC: B61C15/04
Filed: 1969-12-09
Abstract: 1,246,009. Railway locomotives. ETAB. BERRY. 9 Dec., 1969 [18 Dec., 1968], No. 60120/69. Heading B7L. A railway locomotive comprises driving wheels 4 and idler wheels 7, each of the wheels 7 being mounted on one end of a respective lever 9, pivoted at its centre 10, and which is acted upon at its other end by a piston 14, such that the gripping force of a pair of wheels 4, 7 is dependent on the tractive force applied by the locomotive to a train coupled thereto, through drawbar 21, by means of controlling the pressure of fluid supplied to the ram by a pressure regulator 17 linked to the drawbar, and there being an over-ride cock 19 which can supply fluid direct to the ram from pump 15 through by-pass 20 when the vehicle is to be braked. The over-ride cock may be operated manually or be directly linked with the brake 25. The hydraulic ram may be replaced by mechanical, pneumatic or electromagnetic means.
Patent GB-1271170-A (GB)
Title: Device for the spectrochemical determination of the concentration of an element in a sample
IPC: G01N21/31
Filed: 1970-12-21
Abstract: 1,271,170. Glow discharge lamps. CARL ZEISS-STIFTUNG, [trading as CARL ZEISS]. 21 Dec., 1970 [23 Dec., 1969], No. 60480/70. Heading H1D. [Also in Division G1] The light source 1 in a spectroanalysis system (see Division G1) comprises either a hollow cathode lamp or an electrodeless high-frequency discharge lamp placed in a constant or a pulsed magnetic field. The constant component of the magnetic field is provided by an electromagnet 4, and if a pulsed field is required square-wave bursts of current from a generator 14 excite the coils 13 of the electromagnet. In this way a spectral line issuing through a bore 5 in a polepiece is split into its Zeeman components.
Patent GB-1277890-A (GB)
Title: Liquid level indicators systems
Inventor: PARKES ERIC BERNARD
IPC: G01F23/24
Filed: 1968-12-20
Abstract: 1277890 Liquid level indicators JOSEPH LUCAS (INDUSTRIES) Ltd 27 Nov 1969 [20 Dec 1968] 60802/68 Heading G1H In a liquid level indicator system, such as for use in a vehicle radiator header tank 12, in which a conductive probe 16 arranged in an electric circuit completes an electric circuit to extinguish a indicator lamp 18 when the liquid level is at or above a predetermined level and breaks the electric circuit to actuate the lamp 18 when the liquid level falls below the predetermined level a portion of the probe 16 is coated with a layer of material 21, such as felt absorbant to the conductive liquid.
Patent GB-702978-A (GB)
Abstract: 702,978. Turning-gear. BENDIX AVIAATION CORPORATION. Dec. 21, 1951 [Dec. 22, 1950], No. 30035/51. Class 7(5) In a starter drive comprising a power shaft 1, a sleeve 2 fixed thereto, a driving over-running clutch member 7 slidably journalled on the sleeve 2, means including an elastic torsion drive member, such as spring 14, connecting clutch member 7 to the sleeve, thrust means, for example a lock ring 9, limiting the movement of the clutch member 7 away from the spring 14, a screw shaft 17, acting as a driven clutch member, slidably journalled on the sleeve 2, a stop 20 on the free end of the sleeve, a compression spring 22 on the sleeve between the screw shaft and stop, a pinion 24 journalled on the power shaft, a nut 26 threaded on the screw shaft, and a barrel 29 connecting the nut and pinion, the screw shaft is provided with a peripheral recess defined at one end by a shoulder 37 which is engaged by a yielding detent, such as a spring-loaded ball 33, in the nut when the pinion 24 meshes with an engine gear 25. When the drive is inoperative the ball 33 engages a ramp 36 on the screw shaft and acts as an antidrift device. Upon the ball 33 engaging shoulder 37 the pinion cannot be demeshed unless the engine either reaches a given speed whereupon the ball 33 is withdrawn by centrifugal force or the inital explosion is vigorous and forces the ball 33 over shoulder 37 even though the engine has not attained sufficient speed to withdraw the ball centrifugally. Should tooth abutment occur the continued compression of spring 14 will cause sufficient torque to be built up to effect indexing. In a modification, indexing is achieved by a separate spring located between the nut and the front of the barrel whilst the nut is axially slidable relative to the barrel. The lock ring recess in the driving clutch member is dispensed with and the lock ring maintains the drive spring under pressure; this permits shortening of the drive and a reduction of its inertia.
Patent GB-741330-A (GB)
Abstract: 741,330. Covering electric conductors &c. BRITISH INSULATED CALLENDER'S CABLES, Ltd. May 12, 1954 [May 13, 1953], No. 13405/53. Class 109. In a machine for superimposing helical lappings of paper &c. 1, simultaneously about an electrical conductor &c. 2, the paper &c. being furnished from coils 3 thereof carried by a rotary head 5 and led from the coils 3 over guides 6 to meet the core 2 at an appropriate angle, the guides 6 are simultaneously adjustable longitudinally of the machine, by arranging each to have its own adjustment means, e.g. a screwed sleeve 8 and a nut 9 thereon prevented from rotation by a blade 14, the nut 9 being attached to a sleeve 12 and carrying the guide bracket 7, the screws 8 being driven by a common adjustment means, e.g. a chain 11, moved by a hand wheel 21 and running in a ring 20 on the head 5, taking over sprockets, 10 on the screws 8. The pitches of the separate adjustment means are different and depend upon the angular position of the relevant guide 6 on the rotary head 5. A collar 27 having an eccentric inner face may be engaged over the casing 17 housing the nut and sleeve adjustment for each guide, so that they may be locked in their adjusted position.
Patent GB-746816-A (GB)
Abstract: 746,816. Starting prime-movers. BOSCH GES., R. Nov. 5, 1954 [Nov. 10, 1953], No. 32022/54. Class 38 (4). In a starting system for a two-stroke internal combustion engine having controlled electric ignition, wherein an electric starting motor 11, controlled by a reversing contactor 13, turns the engine in the backward direction and thenassisted by the compression thus built upin the forward direction, the reversing contactor is actuated solely by an engine-driven switch 14 and is provided with auxiliary contacts which permit generation of an ignition spark only during forward motion of the engine. In the arrangement shown, starting is effected by first closing the usual ignition switch 35 and then closing the starting push-button switch 37, to energize the coil 36 of a starting contactor 12 and thus complete a circuit for the starting motor, previously prepared over contacts 20, 25, 19, 26 of the reversing contactor. The motor thereupon cranks the engine in the forward direction I until top dead-centre position is reached, when an earthed metal segment 41 carried by engine-driven insulating cam 40 of switch 14 engages a contact arm 42 and causes energization of the coil 24 of the reversing contactor. The reversing contactor responds and the motor now cranks the engine in the backward direction, a maintaining circuit for the contactor now obtaining over holding contacts 21, 28 in series with contacts 44, 45 of switch 14, which latter contacts remain closed until point B of the cam is reached. Auxiliary contacts 22, 29 of the reversing contactor complete a circuit around the usual interrupter 16 during reverse rotation of the motor. At point B, contacts 44, 45 separate and thus de-energize the reversing contactor to renew forward cranking and, simultaneously, generate an ignition spark by the opening of auxiliary contacts 22, 29. The cycle repeats until the engine becomes self-running. Fig. 5 shows a modified form of the switch 14, comprising a cam-operated contact 54 which may engage a pivoted contact 56 and which may move the latter, together with itself, into engagement with a fixed earthed contact 55.
Patent GB-2005573-A (GB)
Title: Producing open-work design in ceramic article by blasting
IPC: B24C1/04
Filed: 1978-06-20
Abstract: A method is described for the production of a ceramic article, more particularly a porcelain article having an open-work design. The article, in a suitably hard state, is fitted with a mask which is formed as a template for the required design and perforations resulting in formation of the design are made by directing a jet of granular material against unprotected portions of the article.
Patent GB-2000741-A (GB)
Title: Package for single film stack
IPC: B65D75/12
Filed: 1978-07-07
Abstract: A package, for a stack of films to be loaded into a cassette, comprising a retaining strip 41 to locate the package in the cassette, a waisted middle part 16 accommodating the stack and a pull tab 14 adjoining this, has the upper side and the under side of the pull tab connected by welds 83, 84 at the points 86, 87 at which the blades of the cassette pierces, the welds being continued as longitudinal welds at least as far as transverse weld 77 of the pull tab. The package accordingly remains light-tight as it is pierced by the blades during the closing of the cassette. <IMAGE>
Patent GB-2001172-A (GB)
Title: Competitive protein binding assay
IPC: C07J41/00
Filed: 1978-07-14
Abstract: A method for competitive protein binding assays for determining a member of an immunological pair (ligand and receptor) whereby an enzyme conjugate to a member of the immunological pair is employed in combination with an enzyme inhibitor, conveniently an antibody to the enzyme. When ligand is the analyte, receptor for ligand is also included in the assay medium, while supplemental amounts of receptor need not be added when receptor is the analyte. The assay is carried out in an aqueous buffered medium, normally at constant temperature, by combining in the assay medium the unknown sample suspected of containing the analyte, enzyme-conjugate, ligand receptor (antiligand), enzyme inhibitor (antienzyme), and enzyme substrates, and the enzymatic activity in the assay medium determined. By comparing the observed enzymatic activity with an unknown to the enzymatic activity observed in an assay medium with a known amount of analyte, the amount of analyte can be quantitatively determined.
Patent GB-2001588-A (GB)
Title: Apparatus for storing aircraft
IPC: B64F1/10
Filed: 1978-07-27
Abstract: An apparatus enables aircraft to be in a raised position so that the wings of the aircraft can overlap the wings of adjacent aircraft stored on a lower level. The apparatus has power- operated means for raising plates 209, 213 supporting the aircraft landing gear and means for retaining the landing gear on the supporting plates. The aircraft is rolled onto the supporting plates in their lowered positions (full lines in Fig. 9) and may be transported by the apparatus when the plates have been raised (broken lines in Fig. 9). <IMAGE>
Patent GB-2028482-A (GB)
Title: A Light Diffuser Fitting for a Lamp Assembly and a Lamp Assembly which includes such a Fitting
IPC: F21V11/00
Filed: 1978-08-16
Abstract: A light diffuser fitting (1) for a lamp assembly has a central portion (2) and legs (3) peripherally spaced around and extending radially from the central portion. Each leg (3) is of a non-rectilinear configuration, such as "S", "C", "V", "W" or "Z" shape, and is formed in flexible plastics material to be capable of radial compression so that the overall diameter of the fitting can be reduced to fit within different sized apertures in a lamp housing. The legs 3 can be integral with or attached to the central portion (2); alternatively the central portion (2) can be assembled from several leg members each of which has a part length corresponding to the leg portion (3). <IMAGE>
Patent GB-2007421-A (GB)
Title: Galvanic cell with an alkaline electrolyte and method of making the cell
IPC: H01M4/42
Filed: 1978-10-31
Abstract: An alkaline cell having amalgamated zinc as the major constituent of the active material of the anode is characterized in that tin is also included in the anode as an active material. The tin is included to produce a step in the operating voltage of the cell towards the end of the usable cell capacity but before the cell is exhausted, the voltage step permitting an indication to be given for replacement of the cell by a fresh cell. In one method of making the cell the active material is obtained by reacting dissolved stannous chloride with an amalgamated zinc powder.   A preferred active material composition comprises from 70% to 92% by weight of zinc, from 3% to 10% by weight of mercury, and from 5% to 20% by weight of tin.
Patent GB-2007437-A (GB)
Title: Broad-band directional microwave antenna unit
IPC: H01Q19/12
Filed: 1978-11-03
Abstract: The antenna unit comprises two separate functional sections; an internal antenna unit (6, 7, 8, 9) which determines the electrical characteristics and is thus made as a precision part, although not requiring a high physical strength, and a shielding casing which is matched to the shape of the internal unit, but does not require to be made to rigid tolerance requirements since it merely provides physical protection. The internal assembly and the casing are mounted on a common rigid base (5) and alignment provisions may be provided to compensate for movement when mounted on a tower. <IMAGE>
Patent GB-2033811-A (GB)
Title: Swaging press
IPC: B21D39/04
Filed: 1978-11-11
Abstract: A portable press for swaging two articles one onto the other, particularly metal fittings onto hoses, comprises a mounting (35) for a swaging die (5) secured in aligned spaced relationship with an hydraulically operated ram mechanism (33) by means of at least three substantially rigid elongate rods (34) widely separated on a circular pitch and each extending between the die mounting and a housing for the ram mechanism. The distance between the die and the housing for the ram mechanism is readily made adjustable to accommodate different sizes of fittings to be swaged, by threading the end regions of the rods and screwing them by a desired amount into corresponding threads in the die mounting and/or in the housing for the ram mechanism. A lever-type operating handle (3) operating a hydraulic pump for advancing the ram mechanism, may also serve as a carrying handle for the press. <IMAGE>
Patent GB-2046374-A (GB)
Title: Power transmissions
IPC: F16H47/06
Filed: 1978-12-09
Abstract: A power transmission mechanism for use as the main drive for an internal combustion engine powered vehicle incorporates a fluid coupling 11 with a lock-up clutch 24 on the engine axis and a transfer drive element 22 which is located on that axis for transferring drive to a second parallel axis and which is arranged at a location between the lock-up clutch 24 and the fluid coupling 11. The connection between the output of the fluid coupling 11 and the clutch 24 is a sleeve 18 and the connection between the clutch 24 and the input to the fluid coupling 11 is a torsion bar 31 which lies within the sleeve 18 and which has flexibility for damping out torsional vibrations. <IMAGE>
Patent GB-2017088-A (GB)
Title: Novel derivatives of eburnamonine
IPC: C07C59/68
Filed: 1979-02-14
Abstract: Compounds having vasodilating activity, of the general formula:   <IMAGE> wherein X is glucose-1-phosphate acid or a salt thereof, acetylsalicylic acid, pamoic acid, 2,4- dihydroxybenzoic acid, 3,5- dihydroxybenzoic acid pivalic acid or clofibric acid are prepared by salt formation.
Patent GB-2017213-A (GB)
Title: Cleaning of Multi-Stage Turbo- Compressors for Gases
IPC: F04D29/70
Filed: 1979-02-21
Abstract: The individual stages or individual groups of stages are cleaned by introducing a cleaning fluid, with the turbo-compressor running, into the gas feed or the particular stage or group of stages to be cleaned and taking off the cleaning fluid, laden with the dissolved-off soiling matter, after it has passed through the stage or group of stages, suitably via condensate removal vessels. The last stage or group of stage 1d is treated first, a suitable solvent or other cleaning fluid being introduced via a valve 6a and the dirt-laden cleaning fluid being withdrawn via a condensate removal vessel 4. The process is repeated for the remaining stages or groups of stages 1c, 1b, 1a in succession. <IMAGE>
Patent GB-2044895-A (GB)
Title: Adjustable control
IPC: F04B49/12
Filed: 1979-03-16
Abstract: A control knob (20) of a stroke adjustor mechanism (2) of a reciprocating pump drive mechanism (1) is axially movable between a first position in which gearing (24) on the control knob is fixedly engaged with gearing formed on the stroke adjustor housing (23), and a second position in which the gearing (24) is disengaged to allow rotation of the control knob for rotating an actuating screw (17) carrying a stop (15) for defining the limit of the return stroke of the pump drive member (3). <IMAGE>
Patent GB-2026466-A (GB)
Title: Ceramic capacitor composition
IPC: H01G4/12
Filed: 1979-05-31
Abstract: A semiconductive ceramic capacitor composition has a main component consisting of 14-21 mol% CaO, 29-36 mol% of SrO and 49.5-51 mol% of Ti2O2 which contains 0.05-1 mol part of at least one of Ta2O5 and Nb2O5, 0.5-6 parts of SiO2 and 0.5-6 parts of Bi2O3 per 100 mol parts of the main component.
Patent GB-2025632-A (GB)
Title: Mechanical weighing scales
IPC: G01G23/20
Filed: 1979-07-11
Abstract: Manually operable mechanical weighing scales have reading and printing devices for reading and printing the weight combined into a single structural group. This is disposed in the top half of the casing and is in the range of vision of the operator. Each such device comprises an indicating roller 57 and a printing type roller 58 for each decade, and the indicating roller and printing type roller are rigidly combined into a single roller member. The roller members are successively set by operation of hand knobs 31, 32, 35 used to transfer weights 25, 26 or operate a compensating spring used for balancing the load. <IMAGE>
Patent GB-2031366-A (GB)
Title: Removing Formaldehyde from Microcapsule Dispersions
IPC: B41M5/165
Filed: 1979-09-05
Abstract: Free formaldehyde is removed from a microcapsule dispersion in which formaldehyde is being used to harden the microcapsule walls by adding a hydroxyalkylamine having a primary or a secondary amino group.