baber/WOPTO huggingface dataset:
Patent GB-2175374-A (GB)
Title: Check valve test method using truncated accumulator blowdown
Inventor: GERLOWSKI THOMAS JOHN
IPC: G21D3/04
Filed: 1986-05-15
Abstract: In a method for testing a normally closed check valve (155) connected in series with an isolation valve (165) at the outlet of an accumulator tank (105) in a passive injection system for supplying liquid to a reactor cooling system (Fig. 1) in a pressurized light water nuclear power system when the pressure is abnormally low, at the cold shutdown the pressure upstream and downstream of the check and isolation valves are adjusted such that the upstream pressure is higher than the downstream pressure and isolation valve (165) is then opened and again closed whereby proper operation of the check valve is verified by recording pressure and level changes, using high accuracy pressure gauges (260,265), of the liquid in the accumulator tank (105) and comparing the recorded measurements of pressure and level during each test of the check valve (155) with preoperational test results and certain acceptance criteria. <IMAGE>
Patent GB-2191830-A (GB)
Title: Clutch friction material and carrier plate assembly
Inventor: MAYCOCK IAN COMMANDER
IPC: F16D69/04
Filed: 1986-06-18
Abstract: A carrier plate 4 has radially extending spokes or paddles 14 which are elastically pliable axially of the carrier plate. Two annular friction facings 20 and 22 which are also resilient and capable of flexing are bonded by strips (such as 24F, 24G, 24H, 24J, 24K, 24L) of silicone rubber to opposite sides of the paddles, the rubber providing axial cushioning. Each of the friction facings has spaced radial ribs (for example the facing 22 has ribs 28) disposed in gaps between adjacent paddles thereby forming dog connections between the friction facings and the carrier plate whereby rotary motion can be transmitted from the friction facings to the carrier plate and vice-versa without straining the rubber bond. <IMAGE>
Patent GB-2180872-A (GB)
Title: Roller drive assembly
Inventor: DAY PERRY
IPC: E06B9/90
Filed: 1986-09-16
Abstract: A drive assembly for a roller having a blind or other sheet material wound upon it comprises a housing 7 containing a wheel member 8. The wheel member includes a pulley 9, a spigot 13 for connection to the roller, and a single axle 14. The housing has an internal boss 18 providing a bearing in which the axle 14 is an interference fit to prevent unwinding of the sheet material. A drive cord 20 passes through an aperture 21 and is looped around the pulley 9. Cam faces 22, 23 urge the cord between the cheeks of the pulley and if the pulley is rotated other than by the cord 20 the cord is carried between one of the cam faces 22, 23 and the pulley and jams, thereby preventing further rotation of the wheel member. The wheel member can then be released by pulling either cord tail. <IMAGE>
Patent GB-2183506-A (GB)
Title: Process for improving dry methods of black stone coal separation
Inventor: SZEKELY EVA
IPC: B03B9/00
Filed: 1986-11-14
Abstract: In a process for improving dry methods of black stone coal separation or classification, such as screening, pneumatic table separation or separation by cyclone, the water content of the coal is adjusted, prior to separation or classification, by drying or water spraying, so as to be in the range of 0.01 to 3.0% by weight related to the weight of air-dry coal. This reduces interaction between the coal particles, thereby hindering agglomeration and resulting in an increase in separation efficiency and a reduction of energy consumption.
Patent GB-2200204-A (GB)
Title: Temperature sensing apparatus
Inventor: FARRIES MARK CUNNINGHAM
IPC: G01K11/32
Filed: 1987-01-17
Abstract: Light is passed into an optical fibre 3 which is doped with holmium to make its light absorbancy highly dependent on temperature. As an alternative to holmium, other materials having a doublet ground state can be used. Another possibility is to use any material having energy states separated by 2.00 cm<-1> or less and having an absorption line in the range 700 nm to 1500 nm. Instead of being doped into the optical fibre, the holmium may be located between the abutting ends of two or more optical fibres. Temperature at two or more locations (e.g. 5, 6) may be sensed using detection of backscatterred light from a pulsed light source 1. <IMAGE>
Patent GB-2205990-A (GB)
Title: Technique for efficient line narrowing of excimer lasers
Inventor: GOWER DR M C
IPC: H01S3/225
Filed: 1987-06-16
Abstract: An excimer laser has one or more tilted Fabry-Perot etalons placed intracavity. When employed with excimer lasers having a single laser gain channel, linewidths can be reduced by factors of more than one hundred from that produced when operating without line narrowing optics and simultaneously high power conversion efficiency (exceeding 50%) is maintained. Such a line narrowing laser can be employed as a light source when performing high resolution mask imaging over large field sizes of the type encountered in the photolithography, micromachining and micropatterning industries. <IMAGE>
Patent GB-2193885-A (GB)
Title: Mounting for vibrating motor
Inventor: RAFFEL MARK J
IPC: A47C3/02
Filed: 1987-07-22
Abstract: A vibrator for furniture comprises vibrator motors 30 each mounted to a member 22 for transmitting vibrations, and concentrating the massage energy on specific parts of the user's body. The two long members for the respective motors are parallel to one another and to the frame structure 20, 21. In one form two rigid energy coupling rods 32 are associated with central vibrating motor 30, underlying the user contacting surface. A vibrator controller supplies the two motors with 60 Hertz pulsed D.C. current which may also be amplitude modulated at approximately 10-30 cycles per minute, with the modulation supplied to one motor 180 DEG  out of phase with the other motor so that the user experiences the sensation of a moving wave. The user simultaneously receives a 10-30 cycle per minute moving tactile stimulation, and a 60 Hertz audio wave which is amplitude modulated at 10-30 cycles per minute. <IMAGE>
Patent GB-2194603-A (GB)
Title: Fluid bearings
Inventor: KELLER JAKOB
IPC: F16C32/06
Filed: 1987-08-24
Abstract: A hydrostatically gas-lubricated plain bearing arrangement has as bearing elements, which accommodate a wheel body in a rotatable manner, two bearing cones (2) which are rigidly fixed on a fixed axle (1) made up of two halves (1a, 1b). Lubricating-air pockets (7) with counterbores (9) and air-supply bores (8) are provided on the external conical surfaces of the bearing cones. The lubricating air is supplied into the air-supply bores (8) through the hollow axle (1) via air-distribution channels (28). For setting the bearing gaps, the mutual distance of the two bearing cones (2) can be changed by a threaded sleeve (18) inside one axle half (1b) in interaction with a threaded spigot (17) of the other axle half (1a). <IMAGE>
Patent GB-2202683-A (GB)
Title: Waveguide-type diode limiter and low-pass filter
Inventor: SAITO MITSUO
IPC: H01P1/15
Filed: 1988-02-03
Abstract: A waveguide-type diode limiter and low-pass filter comprising a corrugated waveguide 11 having a low-pass filtering characteristic and a limiter diode 7 attached to a capacitive gap of the corrugated waveguide, wherein the impedance of the limiter diode is controlled by self-bias generated from the microwave energy so as to control microwave flow. The limiter has no unnecessary resonance mode, and enough isolation of high energy microwaves for higher frequency modes as well as the fundamental mode can be realized. <IMAGE>
Patent GB-2215034-A (GB)
Title: Vehicle ventilation devices
Inventor: OGG STEPHEN JOHN
IPC: B60H1/26
Filed: 1988-02-04
Abstract: A ventilation device for insertion into a vertically or horizontally slidable vehicle window comprises a panel (10) of plastics material, one edge (12) of which is shaped to embrace an adjacent edge of the window pane and an opposite edge (11) of which will fit into the recess in the window embrasure which normally receives the edge of the window pane. The panel (10) has an aperture (14) adjacent to which is mounted a fan (15) and fan drive motor (18) supported on a perforated inner wall (23) of a housing (19). An intermediate wall with a ring of small apertures (25) covers the aperture (14) on the inside. A lead from the motor (18) can be connected into the vehicle's electrical system, e.g.via a cigar lighter socket. Rotation of the fan 15 draws air through the apertures (14, 25) and the perforations in the inner wall (23). The panel (10) is composed of two slidably adjustable parallel parts (101, 102) so that its length can be adjusted, and frangible strip (27) on the side edge portion (26) of the part (102) allow adaptation to windows with ends of differing inclination. <IMAGE>
Patent GB-2202630-A (GB)
Title: Stress measurement in a body by detecting magneto-acoustic emission
Inventor: BUTTLE DR DAVID JOHN
IPC: G01L1/25
Filed: 1988-02-25
Abstract: A method and an apparatus are provided for measuring stress in a steel pipe or rail utilizing magneto-acoustic emission (MAE). A piezoelectric transducer (24) detects the ultrasonic MAE in a steel rail (12) subjected to a low amplitude modulating field and to a steady magnetic field. The steady field is either sufficient almost to saturate the rail, or is almost zero; and the ratio between the MAE signals under these two circumstances is dependent on the stress in the rail while being substantially unaffected by its microstructure. Both the steady field and the modulating field are aligned parallel with the direction of the expected stresses. The steady field is supplied by a d.c. fed electromagnet 14 and the modulating field is generated by series-connected air-cored windings 28. The transducer 24 is connected to a signal processor and store 32. The device may be vehicle-mounted, e.g. for traversing the bore of a tube. <IMAGE>
Patent GB-2210791-A (GB)
Title: Agrochemical composition containing a pyrimidine derivative
Inventor: AKASHI KANJI
IPC: A01N43/54
Filed: 1988-09-13
Abstract: A stabilized agrochemical composition, which comprises (1) a pyrimidine derivative of the formula   <IMAGE> wherein Ar means a phenyl group substituted by at least one lower alkyl; R1, R2 and R3 independently mean a lower alkyl group or its salt and (2) an oxide or hydroxide of zinc, calcium or magnesium.
Patent GB-2214284-A (GB)
Title: A clamp for protecting fluorescent tubes
Inventor: BREDEHORN FRIEDRICH
IPC: F21V19/00
Filed: 1988-10-28
Abstract: A clamp, preferably for the lighting of a balustrade in escalators or moving pathways, in which tubular fluorescent lamps are attached on the underside of a balustrade cover profile between two lamp sockets fixed thereon. In order to support the relatively long fluorescent tubes between their ends and to protect them from improper removal, at least one clamp (32) which is composed of sprung plastics material and substantially surrounds the fluorescent tubes with a curved central portion (34) is provided. Deflection points (36) having a curvature of 180 DEG  are provided in each case between the central portion (34) and the free ends (40), while the free ends (40) can be clipped in horizontal longitudinal grooves (28) in the cover profile (10). <IMAGE>
Patent GB-2227865-A (GB)
Title: Road warning lights
Inventor: KIRKER TIMOTHY JOHN
IPC: E01F9/594
Filed: 1988-12-14
Abstract: Road warning lights (12, 22) of a first colour are located on the approach to and at a road diversion and road warning lights (12, 22) of a second colour are located to show the route to be followed from the diversion to the normal route. <IMAGE>
Patent GB-887049-A (GB)
IPC: C07C303/32
Abstract: 887,049. Aliphatic sulphonates. ESSO RESEARCH & ENGINEERING CO. Nov. 24, 1958 [Jan. 13, 1958], No. 37792/58. Class 2 (3). An olefin of formula RCH=CH 2  where R is an alkyl group with 1-30 carbon atoms is mixed with a bisulphite of an alkali metal, alkaline earth metal or ammonium and the mixture irradiated in a solvent in which the bisulphite ionises with electromagnetic radiations having a wave length of 10<SP>-4</SP>-10<SP>2</SP>Š until 1-50 MR have been absorbed, whereby a salt of a sulphonic acid is produced. Preferably the initial mixture contains at least 5% by weight of the olefin and has a bisulphite/olefin ration of between 1 and 10; suitable temperatures lie between 0‹C. and 90‹C. and the preferred dose rate is 0.1-10 MR/hr. Specified olefins are n-butene-1 and n-hexene-1 and a mixture of olefins boiling in the range 275‹C.-350‹C. obtained by steam cracking paraffin waxes having 28-40 carbon atoms per molecule. The reaction mixture preferably comprises at least 50% by weight of the solvent; if the olefin is insoluble it is -desirable to add a dispersing agent therefor (e g alkarylsulphonates, quaternary ammonium compounds, alkarylpolyether alcohols, aliphatic mon-ionic polyoxyethylene ethers and fatty acid amide esters), and to agitate the reaction mixture. Specified solvents for the sulphite are water, N : N-dimethylformamide, acetone and methyl ethyl ketone; solvent mixtures for both reactants are acetonebenzene, acetone-hexane, water-pyridine, acetonepyridine, dioxane-water and tetrahydrofuranwater. Specified radiations are X-rays and γ-rays from conventional sources. In a first example, illustrated by the Figure, water as solvent is passed into reactor 1 through pipe 2, carrying with it lithium bisulphite: n-butene-1 is supplied to the reactor through pipe 4 and dispersed in the solution by the agitator 6. The radiation is obtained from a solution of indium sulphate circulating through coil 13 in the reactor and returning for reactivation to a nuclear reactor 11. Product is withdrawn at 9 for conventional separation.
Patent GB-2217784-A (GB)
Title: Bearing arrangement for axial fan
Inventor: WROBEL GUNTER
IPC: F04D29/04
Filed: 1989-03-20
Abstract: A compact sized fan has a central motor and a bearing assembly for the motor shaft 1, which can utilize either a sintered bearing or a roller bearing, and which provides several alternative embodiments (figs 1 to 10) for positioning the bearing in a radial and axial direction. In all embodiments a bearing support tube 5 constrains the bearing 15 in the radial direction and an end closure 8 attached to a flange 4 of the fan duct 2 retains the bearing 15 in the axial direction. The bearing 15 is braced between a first shoulder 6 on the bearing support tube 5 and a second shoulder 7 on the end closure 8. The shaft drives fan blades 14. Various configurations of shoulders and bearing sleeves are disclosed. <IMAGE>
Patent GB-2220800-A (GB)
Title: An electronically commutated brushless d.c. motor with the circuitry inside the casing
Inventor: GSCHWENDER ALOIS
IPC: H02K11/20
Filed: 1989-07-07
Abstract: The motor is intended for a pump and has a casing (1) in which a rotor (17) with a rotor shaft (9) is rotatably mounted. The rotor (17) is surrounded by a stator (26). The motor is an electronically commutated, brushless d.c. motor, the circuitry of which is in the form of circuit electronics (20) housed in the casing (1). With this motor, no carbon dust contamination occurs in the casing (1), as is otherwise the case with known commutator motors. This reliably prevents leakage voltages so that this motor, when it has a pressure-encapsulated casing (1), can be used without risk in hazardous areas. The electrical insulation system remains virtually unchanged even after long periods in operation due to the absence of abrasive carbon particles. Also within the sealed casing are housed a protective switch 27 actuated from outside by a knob 50 and a transformerless mains to low voltage d.c. converting circuit. The position sensing arrangement employs Hall sensors 19 and magnets 18, the latter mounted on a disc 21 shaped as an additional cooling fan. The sealed casing 1 is of metal, the outer jacket 28 of electrostatically non-chargeable plastics. …<IMAGE>…
Patent GB-2220971-A (GB)
Title: Spacing plates
Inventor: HANLEY KENNETH ALFRED
IPC: E06B1/60
Filed: 1989-07-10
Abstract: A flexible spacing plate for use between an opening and a window frame has a U-shaped construction which is adapted to surround a fastening screw or the like and a portion which is resilient and is formed by at least one resilient hinge. On application of force to the non-planar resilient portion of the spacing plate during installation the plate becomes substantially flat. <IMAGE>
Patent GB-2222853-A (GB)
Title: An I.C. engine having a sound-damping casing
Inventor: ABSENGER ERICH
IPC: F01P5/06
Filed: 1989-09-14
Abstract: The engine has an outer multi-part casing 22, 24, 26, 28, 30 which damps sound and which provides a space through which cooling air is circulated by a blower 20. The air inlet 24e and outlet 24a are both provided in the same panel 24 forming one element of the casing. Passages (44e, 44a, Fig. 2) from the inlet 24e and to the outlet 24a are defined in an insulating layer 44 in the panel 24. 
<??>The panel 24 also has an access opening (24f, Fig. 5) and the insulating layer 44 has an access opening (44ff), which access openings provide access to the engine housing and crankshaft for maintenance and connection of auxiliary devices. The access openings can be closed by a cover (48, Fig. 5). 
<IMAGE>
Patent GB-2225182-A (GB)
Title: Cable junction with transducer mounting
Inventor: WADE PHILIP JAMES
IPC: H02G15/117
Filed: 1989-10-11
Abstract: A mounting system for connecting a pressure transducer 22 to a cable junction 12 eg. in a telephone network, comprises a canister 13 located within a heat-shrink envelope 14. The pressure transducer 22 is located within a sleeve 20. The sleeve 20 is located at one end of the junction 12 and has a part which is in the envelope 14 and a part which projects from the envelope. The sleeve 20 is effectively in the form of a "dummy" branch cable adjacent cables 10, 11 which enter into the junction 12. <IMAGE>
Patent GB-2225909-A (GB)
Title: DC resistance welding apparatus
Inventor: KOBAYASHI NOBUO
IPC: B23K11/24
Filed: 1989-11-15
Abstract: Welding electrodes 48a, b are energised by parallel - connected transformers 68a-d and rectifiers 74a-h fed by respective high frequency inverters 58a-d. The savings in weight and size thus achieved allow the transformer/rectifier unit 36 to be mounted on a welding robot arm (30), (Fig. 2). The inverters have PWM control to maintain constant welding current. Such control may be achieved by respective auxiliary timers 55a-d responsive to currents detected at the outputs of rectifiers 74a-h or at the inputs or outputs of the inverters (Figs. 5, 6), and/or by a main timer 53 responsive to the total welding current lo. All of the inverters may be disabled in response to an overcurrent or output reduction in any one inventor, (Figs. 12 to 15). Base drive signals for transistors in the inventors may be controlled so that their trailing edges, are coincident in all inventors, individual feedback circuits for each inverter controlling the timing of the leading edges, (Figs. 16 to 18). …<??>Disclosures not limited to use of parallel inventors and transformers include operation of inventer transistors in switched mode at currents in excess of their continuous DC rating, with a timing circuit providing protection to prevent a transistor conduction period exceeding a predetermined time, (Figs 8 to 11), and production of a signal indicative of welding resistance, which signal is indirectly derived from currents detected at leading and trailing edges of inventors switching signals and may be used to terminate weldings (Figs. 19, 20) …<IMAGE>…
Patent GB-2242572-A (GB)
Title: Switch assembly
Inventor: MARCHINI BARRY ALLEN
IPC: H01H13/02
Filed: 1990-03-30
Abstract: A switch assembly, for example to provide player operable switches for a coin-operated entertainment machine, has push-button switch actuators (10) mounted on a strip-shaped printed circuit board (2). The switch actuators (10) can engage press button switches (8, 9) on the board (2) and lamps (23) are also provided on the board (2) to illuminate the actuators from below. The board (2) has multiple longitudinally spaced mounting locations each with its own actuator mounting guides (6, 7) and electrical connections for the switches (8, 9) and lamps (23) so that different layouts of switches can be assembled using standardised components. The mounting locations may have a common unitary spacing and the switch actuators may be of the same spacing, or a multiple of the spacing to give a modular constructions possibility. <IMAGE>
Patent GB-2231776-A (GB)
Title: Trimming vegetables and fruit
Inventor: WILLIAMSON BARRIE
IPC: A23N15/00
Filed: 1990-04-25
Abstract: A method and apparatus for trimming vegetables comprises the use of a power driven fan delivering an air blast through a nozzle 18 to the exterior of vegetables (e.g. cabbages) held by an operator in the path of the air blast for matter to be trimmed therefrom. A housing encloses the vegetables during trimming and the operator views the trimming process through a wipe-clean visor. Trimmed matter is discharged into a receptacle below the nozzle 18 and housing. <IMAGE>
Patent GB-2246517-A (GB)
Title: Ball retriever
Inventor: ROGERS GORDON
IPC: A63B47/02
Filed: 1990-06-22
Abstract: A ball retriever comprising of two flexible flat plates C joined together to hinge in such a way as to form a partial tube when flexed into the "used" configuration. One end of the retriever being of an approximate diameter suitable to accommodate the extension medium such as a golf club handle, the other end being of a diameter suitable to accommodate the item to be retrieved such as a golf ball. Fitted between the flexible plates is a detent D which automatically takes up position across the internal diameter of the retriever when the retriever is flexed into the used configuration. <IMAGE>
Patent GB-2245667-A (GB)
Title: Disc brake pad backplate
Inventor: MELLOR DAVID JOHN
IPC: F16D69/04
Filed: 1990-06-28
Abstract: A back-plate for a disc brake pad has no spigot through holes. An enhanced key for friction material moulded thereon is provided by means of indentations and projections 7, 8, 14, 17 formed on the back-plate surface, on which the friction material is moulded and bonded, without introducing projections on the opposite back-plate surface. <IMAGE>
Patent GB-2247238-A (GB)
Title: Alpha-glucosidase gene from Candida tsukubaensis cloned and expressed in Saccharomyces cerevisiae
Inventor: CANTWELL BARBARA ANN
IPC: C12N9/26
Filed: 1990-08-20
Abstract: A gene (Figure 5) encoding an amylolytic enzyme (alpha-glucosidase) from Candida tsukubaensis has been cloned, sequenced, and expressed in Saccharomyces cerevisiae. The cloned material is present on the plasmid pGA8701 (which has been deposited as S. cerevisiae AH22(pGA8701) in the National Collection of Yeast Cultures with the number NCYC 2345). The enzyme is heat labile and S. cerevisiae strains expressing the enzyme are suitable for use in the production of low carbohydrate beers. The cloned DNA also contains a strong promoter useful for directing the expression of other heterologous genes in S. cerevisiae. <IMAGE>
Patent GB-2237178-A (GB)
Title: Preparation of cheese from natural ingredients
Inventor: MCAULIFFE JOSEPH PATRICK
IPC: A23C19/082
Filed: 1990-09-27
Abstract: A process for the preparation of cheese from natural ingredients to have a shelf life of at least six months comprises blending a mixture of 15 to 25% by weight natural cheese, natural fat, 12 to 16% by weight casein. whey and water, and pasteurizing the mixture at a temperature of not less than 105 DEG C. The natural cheese may constitute 19% of the mixture. The casein may constitute 14% of the mixture and acts as an emulsifying agent. The mixture may be raised to a pasteurization temperature of 110 DEG C by the introduction of steam over a seven minute period. On reaching the pasteurization temperature, the mixture may be immediately cooled over a five minute period to 94 DEG C at which stage it is pumped into moulds. In an example the mixture formed also comprises concentrated dried cheese powder as flavouring, yeast extract, salt, calcium carbonate, vegetable dye.