baber/WOPTO huggingface dataset:
Patent GB-2175701-A (GB)
Title: Microwave power sensor
Inventor: MCALLISTER PAUL ANTHONY
IPC: G01R21/01
Filed: 1986-03-19
Abstract: A microwave power sensor utilises a semiconductor power sensor element (4) which is mounted on a fin-line structure (5-7) within a waveguide channel (1). In order to check calibration of the sensor, a coaxial line is used to feed a relatively low frequency reference signal to the power sensor via a coaxial line input port (12) and a conductive region (11). The use of a precise and accurate reference signal enables the power sensor to be used for microwave measurements. <IMAGE>
Patent GB-2172674-A (GB)
Title: Planetary gearing drive for a coal plane or chain type scraper conveyor
Inventor: SPIES KLAUS
IPC: B65G23/24
Filed: 1986-03-21
Abstract: A drive for a working machine such as a coal plane or chain-type scraper conveyor used in underground mining, comprises an electric motor (1) and a single-stage or multi-stage planet transmission (2). Sum wheels (10, 11) are fast on a drive shaft and engage with respective planet sets (8, 9) on a common carrier (7). Two rotatable annular gears (12, 13) are engaged with respective ones of the planets sets (8, 9) and are selectively brakeable. The carrier (7) preferably drives a second planetary stages (16) whose carrier is connected to the main output. The sum wheels (10, 11) may be driven via an elastic coupling or hydrodynamic coupling (3). The brakes may be located externally of the gearing housing, the annular gears (12, 13) being braked via intermediate gear wheels. The brakes are preferably automatically controlled by an electrohydraulic circuit primarily in dependence on the motor speed but also on the transmission oil temperature Fig. 2 (not shown). <IMAGE>
Patent GB-2172921-A (GB)
Title: Road studs
Inventor: JONES GRAHAM RICHARD
IPC: E01F9/06
Filed: 1986-03-25
Abstract: A reflective road stud 10 has an expandable spigot 34 projecting from its underside to engage in a hole in the road surface. The spigot has an outer spilt sleeve and an inner screw 46 and has a head 44 engaging in a recess 26 in the top of the stud and extends through the sleeve to receive an annular wedge 44 at the bottom of the sleeve which is drawn up into the sleeve as the screw is turned in one direction to expand the sleeve. The upper end of the split sleeve is spaced from the underside of the stud by collapsible abutments 40 to hold the stud and sleeve apart as the screw if first tightened to lock the spigot in the hole and an application of sufficient compressive force through the screw, to collapse allowing the stud to be tightened down onto the road surface. <IMAGE>
Patent GB-2192777-A (GB)
Title: Hitch apparatus
Inventor: TAYLOR STANLEY
IPC: A01B59/06
Filed: 1986-06-19
Abstract: Hitch apparatus 16 for mounting agricultural implements on tractors comprises a pair of bayonet or plugtype members 18 adapted to be slidingly received in complementarily-shaped socket members 20. The latter are open at their opposite ends 22 and 24 to receive the plug members. The hitch apparatus can be front or rear-mounted on the tractor. Hitching is achieved simply by forward or reverse movement of the tractor followed by locking. The members 18 may be carried on an A-frame 34 mountable on the 3-pt. linkage either at the rear (L.H.S. of Fig. 1) or the front (R.H.S. of Fig. 1) of the tractor. The members 20 may be provided as part of the implement frame. <IMAGE>
Patent GB-2201351-A (GB)
Title: Chess game
Inventor: GAREN EDGAR AGUINALDO
IPC: A63F3/00
Filed: 1986-12-12
Abstract: A chess-type game is played on a 14 x 14 board with an augmented chess set. In playing the game, knights and pawns can have augmented moves and, by agreement it is possible for each player in turn to make two moves at one time. <IMAGE>
Patent GB-2201006-A (GB)
Title: Diazotype materials
Inventor: KAPOOR KUL PRAKASH
IPC: G03C1/60
Filed: 1987-02-12
Abstract: Two component diazotype materials are described comprising a support carrying a layer containing a radiation sensitive diazonium salt component and a coupler component, at a level of acidity which ensures that the components do not react, and a partially hydrolysed polyvinyl acetate as a binder. Preferably the polyvinyl acetate is hydrolysed from 15 to 50 percent and more preferably from 18 to 22 per cent. Other addenda may be present in the layers including matting agents, such as colloidal silica, and other binders. The support is preferably a water-impermeable material such as a biaxially oriented polyester, polycarbonate or cellulose ester. When developed with aqueous/solvent solutions of an amine, such as ethanolamine, the materials feel dry to the touch and do not require drying. The materials develop more rapidly than conventional materials using acrylic/cellulose acetate propionate binders.
Patent GB-2187708-A (GB)
Title: An apparatus for monitoring the forces acting during operation on a working cage
Inventor: KEUPER RUDIGER
IPC: B66F17/00
Filed: 1987-03-10
Abstract: An apparatus for monitoring the forces acting in operation on a working cage (30) held by a carrying structure (1) at the head (15) of a cantilever comprises a supporting structure (2) which comprises a horizontal guide rod (3), a tie rod (6) parallel to the same, and a cross girder arranged between these members and into which a force measuring device (12) is incorporated. In view of the fact that the force acting in the cross girder depends exclusively on the magnitude of the load in the working cage rather than on the point of application thereof at the working cage (30), force measurement without any moments is warranted. This guarantees that the assembly composed of the cantilever and working cage is monitored reliably against any overloading or tilting. <IMAGE>
Patent GB-2191508-A (GB)
Title: Bipolar electrolytic cell
Inventor: BROOKS ROBERT IAN
IPC: C25B9/17
Filed: 1987-05-07
Abstract: A bipolar electrolytic cell comprises a cell housing 11 containing a row of bipolar electrodes 12, these electrodes 12 are supported one adjacent the other substantially transverse to the general flow of electrolyte liquid through the cell and such that liquid passes in succession back and forth through all the spaces between the electrodes in the row. The back and forth flow of liquid is preferably, achieved by means of a hole or holes in each electrode, the holes of successive electrodes being offset one from the other. Each electrode may be sealed by a O-ring seal 22 positioned around the outer circumferential edge of the electrode. The electrodes may be spaced by annular spacers 20. The cell eliminates problems of leakage, sealing, unreliability and inflexibility associated with prior art arrangements. <IMAGE>
Patent GB-2192985-A (GB)
Title: Measuring apparatus of reduced statistical uncertainty
Inventor: JAKEMAN ERIC
IPC: G01N23/02
Filed: 1987-06-12
Abstract: In one embodiment, measuring apparatus 10 includes a laser 12 producing a beam 14 for frequency downconversion to coincident photon pairs by a non-linear crystal 20. Apertures 241 and 242 define photon beams 261 and 262 passing respectively to a reference detector 301 and via a measurement sample 28 to a transmission detector 302. Laser beam intensity is monitored by a third detector 303. The reference detector 301 and the sample 28 receive respective photons of each downconverted pair. The intensities recorded by the reference and transmission detectors 301 and 302 are more closely related in statistical terms than would be the case for conventional measurements involving the same particle flux incident on the sample, and in which incident and transmission fluxes are determined independently. For sufficiently high detector efficiency and sufficiently low sample attenuation, the statistical uncertainty of attenuation measurement is reduced as compared to the prior art. Detector efficiency should preferably be at least 0.5 and sample attenuation below 0.1. The invention is particularly important for measurements on samples which can tolerate only comparatively small finite doses of particles, e.g. photons, before undergoing damage and/or change in physical properties, e.g. photochromic materials. Gamma ray photons from a radioactive source may be used instead of optical photons, e.g. for tomography. Alpha-beta or alpha-gamma pairs may also be used. In another embodiment, an interferometer takes the place of the sample. Instead of transmission, reflection, refraction, or scattering may be measured. The non-linear crystal 20 comprises potassium deuterated dihydrogen phosphate. <IMAGE>
Patent GB-2195143-A (GB)
Title: Door operating mechanism
Inventor: PETTERSON DAVID EDWIN
IPC: E05F3/20
Filed: 1987-07-30
Abstract: The door operating mechanism mountable on the pivot axis of a door and comprising a casing (1) rotatable by the door and, in which is guided a piston (4). An actuating member 6 for the piston has helical fingers engaging complementary fingers on a stationary pivot member (7) whereby rotation of the casing and actuating member gives rise to axial movement of the actuating member and piston. The axial movement in one direction causes hydraulic fluid to be pressurised to move a further piston (3) and compress a spring (16). This can be used to return a door to a starting position. By having fluid acting on the piston (4) instead of a spring, failure of the fluid system does not give rise to spring-urged slamming of the door. <IMAGE>
Patent GB-2193908-A (GB)
Title: A process and installation for integrated catching of liquid slugs/separation of oil and gas in a lined rock cavern, independently of ground water level
Inventor: HUBERTZ TROND JOHAN
IPC: B65G5/00
Filed: 1987-01-12
Abstract: A process and an installation for integrated catching of liquid props ("slugs") and separation of oil, water and gas in a lined rock cavern (1), advantageously in the form of a tunnel, independently of ground water level. The catching/separation is effected in a container arranged in the rock cavern, the volume of such container giving sufficient buffer volume and residence time for separation in a single stage. The pressure forces are tansferred to the rock formation through a concrete lining (2) arranged between the rock formation and an inner sealing membrane (3). The installation is provided with supply pipe (5) for supply of oil, water and gas in single or multiple phase stream for separation into separate phase streams (6, 7 and 11) for being passed to processing or comsumption. The entrance portion of the rock cavern (1) being delimited by means of a pressure resistant concrete plug (4). In the container in the rock cavern (1) there is arranged usual equipment (18) for flow directing and energy killing in the form of baffle plates and deflectors as well as sand trap.
Patent GB-2209880-A (GB)
Title: Magnet retainer in an electric motor
Inventor: WONG TO-FAN
IPC: H02K1/17
Filed: 1987-09-16
Abstract: To retain magnets 15 in a fractional horsepower PMDC motor, a U-shaped spring 23 urges the magnets 15 against axial stops 18 and circumferential stops 22. The spring 23 is hooked over a tang 24 pressed from the motor casing wall. <IMAGE>
Patent GB-2197419-A (GB)
Title: Conduit with heater strip
Inventor: CLAASSEN DR CLAUS DIETER
IPC: F16L53/38
Filed: 1987-09-25
Abstract: A polymeric conduit (1) has a heater strip (4) co-extruded in a wall thereof, thereby to enhance thermal transfer to the contents of the conduit. Straight or Tee-connector (Figs. 4-6) with electrical connecting bars (24) may be provided for connecting lengths of the conduit (1). The strip (4) exhibits positive temperature coefficient of resistity (PTC) behaviour. <IMAGE>
Patent GB-2210914-A (GB)
Title: Support device for services
Inventor: CROWLEY KEITH VINCENT
IPC: E04B5/12
Filed: 1987-10-15
Abstract: A support device for electrical or plumbing components in the construction industry, comprising a board 10 made of wood, or a wood-based material, such as plywood or chipboard, and having fixed to one face thereof one or more nail plates 13 which projects or project beyond the ends or sides of the board, the projecting portion serving in use for fixing the board between an adjacent pair of wooden joists 14 or other main structural members. The use of such a device saves the time at present used by a tradesman in making and fixing a "noggin" from waste materials and eliminates the danger of damage to structural members by the use of unsuitable materials or fixings. <IMAGE>
Patent GB-2211867-A (GB)
Title: Valley trough with upstanding centre abutment
Inventor: HANCOCK CHRISTINE
IPC: E04D13/04
Filed: 1987-11-02
Abstract: A valley trough for use on roofs comprises an elongate section having generally a shallow V-shaped cross-section. It has an upstanding abutment 4 extending longitudinally along the section substantially in the region of the longitudinal centre line of the section. Gutters 2 extend longitudinally along the section, one located each side of the abutment 4. Edge portions 1 extend longitudinally along the section, their surfaces being disposed at a level intermediate between that of the base of the gutters and that of the top of the abutment. <IMAGE>
Patent GB-2215745-A (GB)
Title: Fs101
Inventor: PERRY R IAN C
IPC: D06M11/71
Filed: 1988-03-26
Abstract: A fire-retardant composition comprises:-       Ammonium Phosphate monobasic    33%       Ammonium Phosphate dibasic       33%       Ammonium Bromide              30%       Sodium Chloride                  4%       Ammonium Sulphate               1% This chemical combination when applied to any absorbable material and left to dry, will fire block the material. The material so treated will not ignite, but may carbonise, when subjected to direct flame. The material will not give off toxic fumes or smoke, which will normally occur if not so fire blocked.
Patent GB-2219399-A (GB)
Title: Surveying method
Inventor: BENNETT MICHAEL LEONARD
IPC: G01C15/00
Filed: 1988-04-16
Abstract: The method, for surveying the surface of an existing roadway in order to obtain measurements of level at desired points on the roadway comprises: setting-up a series of permanent marks 12 spaced-apart from each other along and to one side of the surface to be surveyed; setting-up an observation station 18 at any desired position located within observation distance of at least two of the permanent marks, there being provided a laser-type surveying instrument at said observation station; carrying out observations of the permanent marks from the observation station and deriving therefrom co-ordinate information concerning the location of the relative positions of the permanent marks and of the observation station; and carrying out observations from the observation station at desired points 21-24 along a transverse line on the surface and computing therefrom information concerning the levels of the points. <IMAGE>
Patent GB-2206380-A (GB)
Title: Axially movable camshaft valve gear
Inventor: STIDWORTHY FREDERICK MICHAEL
IPC: F01L13/00
Filed: 1988-06-24
Abstract: A pivoted member 18 is biased into engagement with profile adjusters 15 and 16 in which cams 11 ans 12 on the axially movable camshaft 10 are received. The cams 11 and 12 have lobes 13 and 14 of different shape and angular extent. Various arrangements for biasing the member 18 and pivoting the member on the support member 5, fixed to the valve stem 3, are described (Figs. 2 to 7). <IMAGE>
Patent GB-2223473-A (GB)
Title: Load carrier, for, eg bales
Inventor: COLE PETER LESLIE
IPC: A01D90/08
Filed: 1988-08-25
Abstract: A load carrier, particularly for bales of fibrous material, comprises a chassis 12 equipped with wheels 13 for displacement forwardly along a path over a surface and defining a load working space at the front of the chassis; an entry track 16A, 16B on the chassis adapted to receive and support a load deposited on, or directed towards, the entry track from the load working space; a storage track on the chassis made up of a pair of rails 17, 18 adapted to receive and support a load from the entry track; the pair of rails being adapted for movement between a first, transit, position in which the lower part of the load is supported by at least one region on each of the two rails disposed at or near extremities of the lower parts of the load, the distance between the two regions being a first value; and a second, release, position R' the two regions are moved apart to increase the distance to a second value; and means for causing or enabling the rails, at least when in transit position, to move to the release position so that a load supported by the rails in the transit position drop through the rails on the movement of the rails to or arrival at the release position. <IMAGE>
Patent GB-2229692-A (GB)
Title: A gravity driven vertical conveyor
Inventor: BASTIN JOHN
IPC: B66B9/10
Filed: 1989-09-08
Abstract: A gravity driven vertical conveyor comprises a continuous chain extending between upper and lower wheels 3, 4, a plurality of platforms 10 supported by the chain for transporting a load downwardly and a hydraulic braking system associated with at least one of the wheels for limiting the speed of descent of the platforms 10. The hydraulic braking system comprises a hydraulic fluid pump driven by one of the wheels which pump supplies fluid under pressure via an accumulator, a return valve and a flow control valve to disc brakes to regulate the speed of descent of the platforms 10. <IMAGE>
Patent GB-2223255-A (GB)
Title: Invert emulsion drilling fluid
Inventor: HALE ARTHUR HERMAN
IPC: C09K8/34
Filed: 1989-09-28
Abstract: Invert emulsion drilling fluid comprising oil, emulsifier, and alcohol, the alcohol being at least about 30% by weight of the internal phase of the emulsion. The alcohol is preferably glycerol, isopropanol, ethylene glycol, 1,2-propanediol, or polyglycerol.
Patent GB-2231100-A (GB)
Title: Angular-contact bearing
Inventor: HOCH PAUL-GERHARD
IPC: F16C43/08
Filed: 1990-04-11
Abstract: In a preloaded double-row angular-contact bearing with bearing rings (1, 2) made in one piece, the rolling bodies (5, 6) are arranged resting against rims (9, 10) of at least one bearing ring (2). 
<??>In order to facilitate assembly, the wall thickness of one bearing ring (1) is made comparatively thin in relation to its external diameter so that it permits resilient deformation in the radial direction, thereby allowing insertion of the second row of rolling elements (6) through an opening (A). Rings (10, 10A) are then applied, dimensioned to the required degree of preload. 
<IMAGE>
Patent GB-2236315-A (GB)
Title: Moulded ceramic fibre products; Kiln linings
Inventor: LAMB JAMES
IPC: C04B30/02
Filed: 1990-07-23
Abstract: A lining for a kiln 30 is produced from moulded components 32, 34, 36 of ceramic fibre having a stone or brickwork impression on one face. The ceramic fibre may include a dye to give a base colour representative of mortar and individual bricks may be coloured with heat resistant dye. The moulded components may be produced by slip casting using a mould having a base carrying the mould impression, or by forming a sheet or slab of ceramic fibre and pressing or machining it to produce the stone or brick effect. <IMAGE>
Patent GB-2236278-A (GB)
Title: Microwave interactive barrier packaging material
Inventor: KELLY ROGER SIDNEY ARTHUR
IPC: B32B27/08
Filed: 1990-08-02
Abstract: A microwave susceptor comprises a laminate of:   i) a thermoplastic or regenerated cellulose film vacuum deposited with a thin layer of a microwave absorbing metal, laminated to ii) a thermoplastic or regenerated cellulose film coated with a microwave transparent, barrier, metal or non-metal oxide, characterised in that the said laminate has an oxygen permeability of less than 5cc/metre<2>/24 hours at 23 DEG C, 50% RH and/or a moisture vapour transmission rate (MVTR) of less than 5 grams/metre<2>/24 hours at 38 DEG C, 90% RH, which oxygen permeability and MVTR are significantly less than the sum of the respective individual barriers of the two films.
Patent GB-2249139-A (GB)
Title: Seal arrangement for a rotary engine
Inventor: KOH PIE SIONG
IPC: F04C15/00
Filed: 1990-09-28
Abstract: In a rotary engine a rotor 14 is rotatable within an oval chamber 10 about an axis fixed with respect to the chamber and has radial slots 19 receiving respective vanes 18 which are urged radially outwardly to make sealing engagement with the peripheral wall of the chamber 10. To ensure sealing of the ends of each vane against the end walls of the chamber 10, each vane 18 comprises end parts 50 for cooperation with the chamber end walls and an intermediate part 52. in Fig 3 the intermediate part 52 and end parts 50 have cooperating inclined ramp faces such that an outward force applied to the part 52 by centrifugal force or a biassing spring 21 will cause the end parts 50 to be thrust laterally, by a wedging action, into sealing contact with the adjoining end walls. In a variant (Fig 6), the inclination of the cooperating ramp faces of the end parts and intermediate parts is reversed so that radially outwardly directed forces applied to the end parts 50 also cause the latter to be urged laterally outwardly. <IMAGE>
Patent GB-2248482-A (GB)
Title: Spring system for traffic barrier
Inventor: HENFREY KENNETH MARDEN
IPC: E01F13/06
Filed: 1990-10-03
Abstract: A tubular casing 11 contains rod 4, plates 5 and 8, compression springs 6 and 7, and a threaded adjuster 9. When connected to a pivoted traffic barrier (1, Fig. 1) the device acts to provide a weight balance for the first part of the upward movement of the barrier and a shock absorber and energy store during the final part of the upward movement. <IMAGE>
Patent GB-2248998-A (GB)
Title: Multiple HDLC processor
Inventor: CLOUGHER ANDREW MARK
IPC: H04Q11/04
Filed: 1990-10-15
Abstract: A telecommunications switch for switching TDM signals between incoming and outgoing lines, the TDM signals comprising data frames in respective time slots, the switch including a processor and a memory store, the processor having a single processing channel including receiver means for receiving incoming data frames, sequentially extracting the data therefrom and transferring such data to the memory store, and said single processing channel including transmit means for sequentially reading the data in the memory store and formatting such data into data frames for sending on the outgoing line.
Patent GB-2238463-A (GB)
Title: Improvements relating to trays for infants' seats
Inventor: ATKINS NICHOLAS PAUL
IPC: A47D15/00
Filed: 1990-10-23
Abstract: A tray (1) for attachment to an infants' seat has hooked formations (4) on its upper side underneath which opposite sides of a bowl or plate (5) can be engaged. Those formations (4) may be inverted L-shaped ribs with the horizontal flanges pointing towards each other and extending transversely of the tray. An array of similarly shaped lugs may be used instead of each rib, and the ribs or lugs may be integrally formed with the main body (1) of the tray. <IMAGE>
Patent GB-2241214-A (GB)
Title: Towing coupling
Inventor: LEA PETER JOHN
IPC: B60D1/07
Filed: 1991-02-21
Abstract: To simplify attachment of an eye coupling (not shown) to a pin (16), and minimise risk of inadvertent unfastening, one of the coupling jaw members (12, 14) between which the pin (16) extends is swingably connected relative to the other. The free end of the pin (16) may locate in a recess or aperture of the swingable jaw (12), when closed, and to provide a dual purpose coupling, a ball (20) may be mounted on one of the jaws, conveniently the upper swingable jaw (12). The swingable jaw (12) is lockable in its closed position by means, for example, of a retractable locking bolt (40) or of a rotatable locking bolt or nut. <IMAGE>