baber/WOPTO huggingface dataset:
Patent GB-2043737-A (GB)
Title: Refuges for use in hazardous environments
IPC: A62B3/00
Filed: 1979-12-14
Abstract: A refuge transportable in a collapsed disposition and deployable to a deployed disposition in which it forms an enclosure for accomodating at least one person comprises a floor which provides a load bearing floor surface sufficient to support the weight of the person, a cover erectable above the floor to form the enclosure and a means for supplying to the enclosure a breathable gas under pressure from a source remote from the refuge. The cover includes a closable entrance opening by which a person may gain access to the enclosure, and the floor, the entrance opening when closed and the cover is such as to prevent during use of the refuge in the deployed disposition the ingress of ambient gas to the enclosure at least when breathable gas is being supplied thereto under said pressure. <IMAGE>
Patent GB-2056196-A (GB)
Title: Converters
IPC: H02M3/337
Filed: 1980-02-20
Abstract: This is a high frequency converter, for example for use in an electric battery charger which can be light enough to be mounted in a battery driven vehicle. Operation depends upon the use of an oscillatory circuit including inductance (34) and capacitance (40) and a load (30) in parallel with transistor (20, 21) for connecting the circuit to and from a D.C. supply (17, 18). In order to avoid problems due to lack of symmetry thyristors (126) are arranged to prevent current flowing in the inductor (34) during a period when the direction of current flow in the inductor is changing. In a second embodiment Fig. 4 (not shown), a pair of parallel inductors are provided in place of inductor (34), each inductor being in series with a respective diode which diodes are poled in opposite directions. <IMAGE>
Patent GB-2046712-A (GB)
Title: Sheet-feeding apparatus
IPC: B65H3/10
Filed: 1980-02-21
Abstract: In apparatus for feeding sheets singly from a stack of sheets, the stack of sheets is urged against a support plate having a bifurcated end (13). The leading edges of the sheets abut a restraining member (15). A drum (5) has suction ports (7) in an arc of its periphery and these impart a transverse curvature to the front sheet, deflecting its leading edge clear of the end of the restraining member (15). The front sheet is fed forward as the drum rotates. To facilitate the feeding of used or worn sheets past the end of the restraining member (15), two sheet-guiding belts (10, 11) move along paths tangential to the drum and parallel to the stack, one on each side of the suction ports and between the ends 13 of the support plate. Additionally the end of the restraining member (15) is sloped on its side facing the leading edge of the sheets and suction ports (20) are provided in the sloped portion to assist in retaining the sheets immediately behind the first sheet. <IMAGE>
Patent GB-2044938-A (GB)
Title: Capacitive transducers
IPC: G01D5/24
Filed: 1980-02-21
Abstract: A capacitive transducer is calibrated after assembly by selective electrolytic deposition or removal of electrode material to adjust the capacitive gap. Electrolytic deposition and removal can be carried out by means of absorbent pads connected to a source of electricity, the pads being moved over the electrode surfaces.
Patent GB-2047851-A (GB)
Title: A multi-circuit protective valve unit
IPC: B60T11/32
Filed: 1980-04-23
Abstract: A multi-circuit protective vale unit for use in the compressed air multi-circuit brake system of a commercial vehicle for controlling the compressed air supply of the individual circuits by means of a plurality of individual overflow valves (4, 5). The housing (1) of the unit has recesses (2, 3) for receiving the respective individual valves (4, 5), the said recesses being externally sealed by a common cover (18). Each individual valve (4, 5) has a sleeve body (12, 13) which serves to guide a valve closure member (8, 9) of each individual valve (4, 5) and which, in common with the other sleeve bodies, is fixed in the housing (1) by the cover (18). <IMAGE>
Patent GB-2054767-A (GB)
Title: A radial-axial rolling bearing assembly
IPC: F16C19/54
Filed: 1980-04-28
Abstract: A radial-axial roller bearing assembly suitable especially for mounting a machine tool spindle 5, 6 formed with a helical ball track is of the kind having a set of radial load- supporting rollers 3 between radially outer and inner races 2 and 4 and two sets of axial load-supporting rollers 7 between race rings 8, 9 and corresponding ends of the outer race 2. In order to seal such a bearing assembly against leakage of lubricant therefrom, there is secured to one end of the outer race 2, in axial alignment with the latter, a carrier ring 13 which extends axially over the race ring 9 and carries a sealing ring 17 slidably engaging the outer circumference of the said race ring 9. <IMAGE>
Patent GB-2077851-A (GB)
Title: Ignition Spark Plug
IPC: H01T13/40
Filed: 1980-08-11
Abstract: An ignition spark plug incorporates a primary valve 5 and a secondary valve 7. The primary valve 5 is a check valve disposed in a through bore 2b formed in the central electrode 2 of the plug and is adapted to prevent gas from leaving a cylinder in which the plug is installed. The secondary valve is provided within a body 10 adapted for connection to a supply lead and is adapted to act, when the valve 5 is open at the completion of a power stroke, to permit introduction of external air through ports 9a and a filter 12 to the central electrode 2 and into the cylinder, but otherwise to assume a closed position in which it closes the bore of the electrode. <IMAGE>
Patent GB-2084543-A (GB)
Title: Elevating platforms
IPC: B66F11/04
Filed: 1980-10-02
Abstract: A lifting apparatus has a carriage (1), a pantograph comprising a plurality of X-link units provided on said carriage (1), and a platform (5) provided on said pantograph. Each X-link link unit comprises a pair of outer pipes (7) rotatably connected to each other at a central portion and a pair of inner pipes (8) slidably inserted into each of the outer pipes from the opposite ends. The end of each inner pipe (8) of the lowermost X-link unit is connected to the carriage (1) and the end of each inner pipe (8) of the uppermost X-link unit is connected to the platform (5). Driving means (14) for extending and retracting each inner pipe (8) is provided. The pantograph is extended by extending the inner pipes to raise the platform. <IMAGE>
Patent GB-2063312-A (GB)
Title: A drum for a top-loading clothes washing machine
IPC: D06F37/10
Filed: 1980-11-06
Abstract: A top-loading clothes washing machine has a washing drum comprising a peripheral casing 4 having an access opening 6 provided with two oppositely disposed and partially overlappable doors 9 and 10 hinged on opposite edges of the opening in which are provided with torsion springs 11 and 12 capable of urging them in the direction of opening thereof. Closure of the doors 9 and 10 is effected by means of coupling at least one catch member 15 and a respective buttonhole-like aperture 14. The door 10 to which said catch member 15 is fixed is provided with at least one further catch member 16 which is spaced from the first catch member 15 so as to permit the edge of the second door 9 to pass between said catch members. The further catch member 16 is bent in the opposite direction to the direction of the first catch member 15 and is capable of forming an abutment for the edge of the second door, so as to permit reciprocable engagement and disengagement of the doors only when at least said second door is pushed into a position of being inclined towards the interior of the drum. This arrangement provides simple and convenient operation of the doors while ensuring that they do not fly open during spinning. <IMAGE>
Patent GB-2086750-A (GB)
Title: Improved humus tank
IPC: B01D21/02
Filed: 1980-11-11
Abstract: A humus tank 1 comprises an inlet 5 for humus, an outlet 6 for liquid at the upper part of the tank, a container 7 within the tank having an opening which is situated below the liquid surface A in the tank which, in use of the tank, is determined by the outlet 6. In the embodiment illustrated, this opening is provided by the open top 11 of the container 7. At least one pipe 16 provides communication between a first level 17 in the container and a second, lower level 18 in the tank 1, the first level 17 being at a lower level than the aforementioned container opening. Withdrawal means, which in the embodiment illustrated comprises a pump 12, is provided for withdrawing liquid and solid material from the container 7. As material is withdrawn from the container 7, liquid and floating material pass into it until the level A in the tank 1 falls to B and then, as the level in the container 7 falls to C, liquid and settled solid material flow up the pipe 16 into the container 7. <IMAGE>
Patent GB-2089028-A (GB)
Title: Spectrophotometer with Noise Reduction
IPC: G01J3/42
Filed: 1980-11-26
Abstract: A dual beam spectrophotometer comprises an optical section (1), a noise reduction circuit (37) and a signal processing circuit (53). A detector (18) comprising a photomultiplier produces a composite signal comprising interleaved pulse trains representing sample absorbance and reference absorbance. In order to remove the high frequency noise superimposed on the pulse trains without altering the relative amplitudes of the pulses the composite signal is passed through the noise reduction circuit (37) before being applied to the signal processing circuit (53). The noise reduction circuit (37) comprises an integrator (38), a switch (43) for setting the integrator output to zero at the start of each pulse of the composite signal and a sample and hold circuit (47) which samples the integrator output at the end of each pulse. Switches (43, 45, 48) comprise field effect transistors which are controlled by pulses (S1, S2, S3) derived from a beam splitting device (5). <IMAGE>
Patent GB-2093535-A (GB)
Title: Means for cooling oil in a hermetic compressor
IPC: F04B39/06
Filed: 1981-02-13
Abstract: A heat exchanger for extracting heat from the lubricating oil 6 of a sealed compressor 1 consists of a jacket 7 added at the base of the compressor and through which heat-exchange medium is circulated to take up heat through the unpenetrated base portion of the compressor.   <IMAGE>
Patent GB-2094970-A (GB)
Title: Improvements in or relating to burner systems and methods of operating same
IPC: F23K5/10
Filed: 1981-03-18
Abstract: A burner system has improved fuel consumption by substituting water or other liquid for part of the liquid fuel. Water from the mains is entrained in a device 15 by fuel oil flow from pump 17 to burner 10. The water passes through flow regulator 24, flow meter 25, one-way valves 28, 29. The pump 17 is driven by an air blower 11 which supplies air to the burner 10. The burner 10 has a low flame pipe 13a and high flame pipe 13 and the water is supplied only to the high flame pipe. <IMAGE>
Patent GB-2076545-A (GB)
Title: Surfactant-sensitive Membrane Electrode and Method of Determining Surfactant Concentrations
IPC: G01N27/333
Filed: 1981-05-21
Abstract: An ionic surfactant, ion-sensitive membrane electrode is characterised in that the membrane has been formed from a solution of a complex of a water-insoluble copolyelectrolyte and the surfactant to which the electrode is sensitive; the copolyelectrolyte comprising units having an ionic group and units of such structure and in such proportion that the resulting copolymer has a glass transition temperature (Tg) below 20 DEG C. An anionic surfactant- sensitive electrode is described based on poly(ethyl acrylate)10-co-(3-benzyl- 1-vinylimidazolium chloride)1.
Patent GB-2082311-A (GB)
Title: Heat exchanger
IPC: F28F13/00
Filed: 1981-07-27
Abstract: A heat exchanger has a membrane comprising a film of a cross-linked silylated ethylene copolymer, preferably in the form of tubes in a bundle. The membrane is of increased wettability compared with polyethylene film and is of particular use in evaporators where a liquid to be evaporated is passed over the membrane as a thin liquid film. Such a liquid may be passed as falling films down a vertical tube bundle or sprayed over a horizontal tube bundle. The wettability of the copolymer film is increased after treatment with brine or viscose spin bath liquor.
Patent GB-2082525-A (GB)
Title: A wheel, preferably for a tracked vehicle, elastically arranged on a wheel hub
IPC: B61F13/00
Filed: 1981-07-31
Abstract: A wheel, which may be a driven or non-driven guide wheel for a tracked vehicle, comprises a wheel rim 1 attached to a wheel hub 6 by a bolt 4, a bush 2, resilient rings 3, and resilient discs 7, 8. The rings 3 are vulcanised to the bush 2 and are in a biassed state in a bore 22 of wheel rim 1. The resilient rings and discs absorb impacts applied to the wheel rim. <IMAGE>
Patent GB-2104961-A (GB)
Title: Motor vehicle tilting cab actuator
Inventor: PEARCE PETER
IPC: B62D33/07
Filed: 1981-09-03
Abstract: The actuator has a first line 21 for pressurised fluid to the cylinder space 4 on the front side of the piston 2 to extend the ram. A normally closed valve 25 is opened by the fluid for extending the ram. A second line 22 is provided for pressurised fluid to the cylinder space on the rear side of the piston to retract the ram. A by-pass line 23, when the ram is retracted, interconnects the two cylinder spaces, and contains a normally open valve 27 which is closed by the pressure fluid supplied to extend the ram, which pressure is derived from a point in the line 21 upstream of the valve 25. The second line 22 acts on a piston 29 also opening the valve 25 to allow return flow in the line 21 when the piston retracts. Each line has a ball valve 24, 26 with restricted counterflow when closed.   <IMAGE>
Patent GB-2085623-A (GB)
Title: Improvements in or Relating to Input-output Modules for Electronic Processors
IPC: G06F13/12
Filed: 1981-09-09
Abstract: An input-output module comprising a plurality of interface units IP1...IPn and circuits designed to control and operate the interface units by monitoring dialogue between a processor and peripheral units P1...Pn. The module includes circuits for establishing the priority of the various interfaces in the module; circuits for checking formal accuracy of the data flowing in the module bus, thereby preventing an error from being propagated to hierarchically higher structures; and circuits for processing module signallings to be sent to the central logic unit. <IMAGE>
Patent GB-2115572-A (GB)
Title: An acousto-optic heterodyne signal processing device
Inventor: JACKSON JOHN DAVID
IPC: G02F2/00
Filed: 1982-02-23
Abstract: An acousto-optic heterodyne signal processing device includes an optical path traversed by first and second substantially identical acousto-optic diffraction means 10, 11, e.g. SAW devices, which act parallel with one another in opposite directions to diffract light from coherent source 14. Diffracted light is brought to a common focus at various parts of the photodetector array 15, according to the frequency components of the r.f. signal which is applied simultaneously to the two diffraction means. The output angle of beams 17, 22 is invariant with r.f. signal frequency. The optical path may be a surface wave guide region in an electro-optic substrate with lenses 12, 13 or alternatively mirrors, fabricated therein, or the device may be implemented using discrete bulk optical components.   <IMAGE>
Patent GB-2118273-A (GB)
Title: Hub assembly for a clutch driven plate
Inventor: MAYCOCK IAN COMMANDER
IPC: F16D13/64
Filed: 1982-04-15
Abstract: A hub assembly for a clutch driven plate includes a hub (40) and flange (46) forced fitted together, the flange having hard teeth which cut serrations in the hub during assembly. To provide space for material cut during the assembly operation, there is a groove in the hub which is partially overhung by an abutment sleeve (45). In a preferred embodiment the sleeve acts as a journal bearing for a friction facing carrier assembly. <IMAGE>
Patent GB-2098479-A (GB)
Title: Improvement of lactation
IPC: A61P31/04
Filed: 1982-04-19
Abstract: Milk production in lactating ruminants is improved by the oral administration of an antibiotic selected from the virginiamycin or elfamycin families of antibiotics.
Patent GB-2113992-A (GB)
Title: Reversible curtain
Inventor: PHILLIPS GILBERT SEYMOUR
IPC: A47H23/00
Filed: 1982-05-05
Abstract: A reversible curtain is formed of a length of double faced fabric folded along the top edge 13 of the curtain to give a main length 11 of material and a short length 12 of material. The two lengths are attached to each other by lines of stitching 16, 20 which also join first suspension means in the form of heading tape 14 to the curtain. A second heading tape 15 is stitched to the short length of material 12 below and parallel to the first heading tape 14. Such a curtain can be hung using either tape so that one face only is presented to a viewer in each case, and the unused tape concealed. Two heading tape portions in the positions shown can be provided by a single length of double heading tape, and the same effect can be achieved by using pinch pleats, formed in the short length 12 and secured by stitching, as the suspension means in conjunction with conventional pins or hooks. <IMAGE>
Patent GB-2119908-A (GB)
Title: Furnace skid rails
Inventor: CAMPBELL WALTER B
IPC: F27D3/02
Filed: 1982-05-06
Abstract: An elongated structural member having a base, parallel spaced apart sides extending from said base and spaced inward from the ends of said base equal distances to form two base flanges and a top across the top of said sides and extending outward equal distances as top flanges which are the same size as bottom flanges to form a hollow box structure with equal sized upper and lower flanges. When used as a skid rail such structural member has a suitable skid secured on its upper surface. <IMAGE>
Patent GB-2122848-A (GB)
Title: A security system
Inventor: MOORE MARTIN FREDERICK
IPC: G08B19/00
Filed: 1982-05-28
Abstract: A security system for boats or other protected environments, comprises means (16, 17, 18) for detecting the occurrence of one or more predetermined events such as presence of an intruder, storage means (14) for storing at least one recorded message relating to the event or events to which the sensor (16) or sensors (16, 17, 18) are sensitive, and a transmitter (15) for broadcasting the recorded message when triggered to do so by the sensor (16) or sensors (16, 17, 18) detecting the occurrence of the or one of the said predetermined events. <IMAGE>
Patent GB-2126416-A (GB)
Title: Electroluminescent display devices
Inventor: BEATTY PAUL HANLON JAMES
IPC: H05B33/22
Filed: 1982-08-26
Abstract: In the manufacture of a D.C. electroluminescent display device in which a layer (14) of electroluminescent material of the kind required to be formed is sandwiched between a transparent electrode (11) on a substrate (10) and a backing electrode (15), a thin film layer (12) of resistive material, for example a metal chalcogenide, for reducing forming power levels is produced on the transparent electrode (11) prior to the deposition of the electroluminescent material (14) thereon by coating the electrode, for example by dipping or spraying, with a solution containing constituent elements of the resistive material and causing those elements to react together. The electroluminescent material (14) and backing electrode (15) are thereafter disposed on the substrate. <IMAGE>
Patent GB-2110947-A (GB)
Title: Basket strainer
Inventor: RUCKEL RAYMOND WILLIAM
IPC: B01D29/35
Filed: 1982-09-16
Abstract: A strainer for filtering liquids comprises a housing having an inlet port 22 and an outlet port 24. A removable filtering element 28 is located within the housing and has a flange 32 which is supported on the upper edge of a tubular pipe section 26, whose interior communicates with outlet 24. The element is clamped in place by arched strip 33 engaging the housing cover 20. <IMAGE>
Patent GB-2132651-A (GB)
Title: Concentrated fabric conditioning composition
Inventor: HESLAM ROBIN SNELL
IPC: D06M13/463
Filed: 1982-11-02
Abstract: A concentrated liquid fabric conditioning composition contains at least 8% of a fabric conditioning agent which is a di-long chain alkyl quaternary ammonium salt containing not more than 7% based on the fabric conditioning agent of the corresponding tri-long alkyl compound. The compositions exhibit improved viscosity and stability characteristics. Other conventional components may be included such as viscosity control agents and nonionic or other cationic fabric conditioning agents.
Patent GB-2132296-A (GB)
Title: Tube coupling
Inventor: GUEST JOHN DEREK
IPC: F16L37/08
Filed: 1982-12-13
Abstract: In a tube coupling of the kind having a collet (12) for gripping a tube (11) within a body member (10), the collet (12) having arms co-operating with a tapered bore (18) in the body member (10) so that a pull on the tube (11) pulls the collet (12) outwardly and so causes the collet arms to grip the tube more firmly, and wherein the tube (11) can be released from the coupling by axial inward pressure on a head (21) on the collet (12), accidental release of the tube is prevented by an end cover (30) through which the tube passes and which surrounds the collet head (21), the end cover resiliently engaging in the body member (10).
Patent GB-2115574-A (GB)
Title: An improved optical fibre element
Inventor: GREENE DAVID JAMES
IPC: G02B6/44
Filed: 1983-02-15
Abstract: An optical fibre element for use as a component of an optical or electrical cable or which may itself constitute an optical cable comprises a flexible elongate body 1 having a bore 2; separate optical fibres loosely housed in, circumferentially spaced around, and following a helical path or oscillating lay along the length of, the bore; and means 5 retaining the circumferentially spaced fibres adjacent the boundary wall of the bore. The boundary wall of the bore preferably has circumferentially spaced grooves extending helically or with an oscillating lay along the bore in which the optical fibres 4 are housed. The retaining means 5 may be a grease, an inorganic fibrous wool or a tape transversely folded into more than one convolute turn. All such retaining means 5 permit transverse movement of the optical fibres 4 towards the axis of the bore 2 when the optical fibre element is subjected to a tensile stress. <IMAGE>
Patent GB-2116644-A (GB)
Title: Guide roller mounting
Inventor: AKSAMIT STEVE MICHAEL
IPC: B65G39/12
Filed: 1983-02-23
Abstract: A roller assembly including an axle 88 having projecting terminal portions provided with flats 90, 92 at the sides thereof adapted to pass through relatively narrow slots 96, 98 into circular mounting holes 100 where the axle can be turned crosswise to the slots by a laterally extending locking tab 102 on one of the terminal portions, the tab being manually bendable against a suitable part of the mounting structure to hold the axle normally securely in the mounting holes and being bendable away from such part to permit turning of the axle to align the terminal portions with and retraction thereof through said slots for servicing or replacement of the roller 50. The roller is a guide roller of a chain conveyor. <IMAGE>