baber/WOPTO huggingface dataset:
Patent GB-2039159-A (GB)
Title: Electric motor
IPC: H02K17/04
Filed: 1979-11-22
Abstract: An electric motor for controlling a fuel burner has a stator comprising a main winding (1) and an auxiliary winding (2) which is connected, e.g., in series with a temperature sensitive resistor (3) having a positive temperature coefficient. The resistor has a Curie point at which its resistance increases greatly to de-energise the auxiliary winding. The resistor allows a current to flow in the auxiliary winding for between 0.5 and 2 seconds. With the rotor stopped, the rate of increase of temperature in the main and auxiliary windings is not greater than 2.5 DEG C/second and 7 DEG C/second respectively. The P.T.C. resistor may be in parallel with a capacitor, as in Fig. 3 (not shown). <IMAGE>
Patent GB-2051086-A (GB)
Title: Stripping Volatile Material from an Aqueous Latex
IPC: C08C1/04
Filed: 1979-11-23
Abstract: Volatile material is steam-stripped from a latex by passing the latex downwardly and steam upwardly through apparatus comprising a column 48 equipped with perforated trays 41 each having a downcomer 43, in which at least the top trays have weirs 42 15 cm. to 25 cm. high and in which the topmost downcomers terminate 5 cm. to 15 cm. above the next tray surface, such that there is 7.5-15 cm. between the lowest point of the downcomer and the highest point of the weir of the tray supplied thereby. <IMAGE>
Patent GB-2057886-A (GB)
Title: Apparatus for use in diagnosis
IPC: A61B19/00
Filed: 1980-08-19
Abstract: An apparatus for use in diagnosis comprises a fibre-optic light source and a light excluding cover adapted to be placed over the patient, the cover including at least two sleeves of flexible material positioned on one side of the cover to permit the arms of an operator to be inserted into the cover and said cover including a viewer shaped so that in use the operator can view the interior of the cover whilst excluding the passage of light. The sleeves may be arranged to correspond to the positions of the access portholes in the sides of the incubator and the viewer may be disposed in a top wall of the cover. <IMAGE>
Patent GB-2069630-A (GB)
Title: Sealing ring for coupling pipes
IPC: F16L17/025
Filed: 1981-02-05
Abstract: This sealing ring comprises an annular element of an elastomeric material 2 and a metallic reinforcement part constituted by steel wire hoops 3 incorporated in the elastomeric material. The hoops 3 are preferably constituted of multistrand steel wire twisted together. For large diameters, several concentric rows of hoops 3 are incorporated. <IMAGE>
Patent GB-2093917-A (GB)
Title: Gas powered engine
IPC: F01K17/02
Filed: 1981-02-20
Abstract: The engine comprises a turbine (38), driven by expanding compressed gas such that the turbine temperature is reduced below ambient atmospheric fluid temperature, there being means to flow atmospheric fluid at ambient temperature in contact with said gas turbine (38) whereby heat energy in said fluid is transferred to the driving gas in the turbine. The flow means may be a jacket (39) through which ambient air is drawn by a blower (44). The compressed gas, e.g. air, may be supplied by a water jacketted, multi-staged, intercooled compressor (14) driven by a steam turbine (13). Other compression arrangements are described. Turbine (38) drives an electrical generator (56), but in a modification four turbines are provided each driving individual vehicle wheels. A solar heated air storage reservoir (54) is provided. The working circuit may be closed with nitrogen, argon or helium as the working gas. <IMAGE>
Patent GB-2093727-A (GB)
Title: Treatment of sludge
IPC: C02F1/20
Filed: 1981-02-26
Abstract: The invention relates to a process for thickening digested sewage sludge, comprising the steps of removing gases from the sludge either by vacuum, agitation or passing a gas through the sludge, and then thickening the de-gassed sludge under gravity to provide a thickened, digested sludge in which the solids content is enhanced. The figure illustrates the rapid settlement of aerated sludge when compared to conventional settlement, and indicates that deeper settlement tanks may be used. <IMAGE>
Patent GB-2095149-A (GB)
Title: Improved electric soldering iron
IPC: B23K3/03
Filed: 1981-03-19
Abstract: An improved soldering iron comprises a tubular handle (1) having a soldering head (2) mounted from one of its ends. The handle (1) contains a core piece (10) externally formed with longitudinal grooves (10a) each of depth and cross-section such as to accommodate between itself and the inside surface of the handle (1) a particular one of the insulated conductors (7) of a power supply cable (8) which enters the handle end remote from the soldering head (2). <IMAGE>
Patent GB-2077150-A (GB)
Title: An arrangement for changing tools
IPC: B23Q3/155
Filed: 1981-05-13
Abstract: An arrangement for changing large tools, particularly drill and milling heads, and for their transport from a storage area to a working area and back, comprises a suspended rail system having one or more mutually connectable closed or closable loops (9) on which are movably arranged trolleys (11) which circulate in the system and each of which carries one said tool head (8) firmly attached thereto. The trolleys are brought sequentially to a removable rail section (13) in the working area of a machine tool and are automatically connected to its tool head carrier unit (6), and subsequently removed and returned to the rail system. <IMAGE>
Patent GB-2077310-A (GB)
Title: Flame-proofed fabric
IPC: D06M11/74
Filed: 1981-05-18
Abstract: A flame-proofed fabric based on melt-spun bicomponent fibres, one component of which forms at least a proportion of the fibre surface and has a softening temperature lower than that of the other component, characterised in that such lower softening component has penetrated into it a chlorine or bromine containing organic material, a metal oxide and, optionally, finely divided carbon.
Patent GB-2102861-A (GB)
Title: Leaf guard for rainwater downpipe gulleys
Inventor: INGLETON JAMES EDWARD
IPC: E04D13/04
Filed: 1981-07-30
Abstract: The invention relates to a leaf guard (1) for fitting around the gulley (2) of a rainwater downpipe (3) to inhibit clogging of the gulley by leaves. The guard comprises a screen member (7, 8, 9), preferably of plastics, having rows of mainly rectangular apertures defined by crossing sets of bars (10, 11). By cutting away some bars at the rear of the screen an opening (6) so formed to enable the screen (1) to be fitted around the downpipe (3). The screen is retained by a clip (13) which can be snapped on to the bars (10) behind the downpipe (3). The screen may include a series of overlapping circular or semi-circular bars (12) to enable the screen to fit more closely around a circular downpipe. The size of the screen may be adapted to the gulley by cutting away bars at its edges. The bars are preferably able to be cut by a domestic utensil. <IMAGE>
Patent GB-2083925-A (GB)
Title: Microwave Oven
IPC: H05B6/68
Filed: 1981-08-24
Abstract: In order to provide a weight signal to a microprocessor controlling the on time of a magnetron 14, a plate 26 is provided inside the oven cavity 10 for supporting an article to be heated or cooked. The plate is supported on columns 22 which pass through apertures in the floor 18 of the cavity, e.g. four apertures at the corners of the floor, and transmit the weight to a scale mechanism 20. To prevent escape of microwave energy, the columns are non-conductive (preferably transparent to the microwaves) and the apertures have a periphery less than one half, preferably less than one quarter, of the wavelength of the microwave energy. <IMAGE>
Patent GB-2084090-A (GB)
Title: Gliding airfoil parachute canopy construction
IPC: B64D17/02
Filed: 1981-09-11
Abstract: The outer airfoil surface portions (14 and 16) of a forward gliding type parachute canopy are made from flexible panels (28, 30, 32) secured to each other along spanwise extending seams (26) in transverse intersecting relation to chordwise extending seams (24) connecting spaced ribs (22) to the outer surface portions to form internal airflow channels. Each panel is substantially equal in length to the spanwise dimension of the canopy. <IMAGE>
Patent GB-2088133-A (GB)
Title: Snap-action Switch
IPC: H01H1/58
Filed: 1981-10-27
Abstract: A change-over snap action switch comprises a contact blade (1) having two arms which are positioned in V- shaped grooves of a partially silver- plated terminal portion (2), welded onto a terminal (3). The terminal portion (2) is formed by shearing a portion from a silver - plated section whereby the sheared side faces of the portion (2) are not coated with silver. This enables a saving in silver to be obtained. <IMAGE>
Patent GB-2090509-A (GB)
Title: Device for reading digital waveforms
IPC: G06F3/047
Filed: 1981-11-04
Abstract: The present invention concerns a device for reading a plurality of multi level digital waveforms represented one below the other including calculation means responsive to the relative movement of a reading head (1) transverse to the waveforms to generate in digital form data representing the levels of the waveforms. The calculation means (3) are operative to determine the level of the waveforms by comparison of the spacing between the lines of the waveforms and at least one reference level. The results of the waveform level determination may be used by the computer to reproduce accurately the waveforms or to generate data in suitable form for test equipment. <IMAGE>
Patent GB-2113966-A (GB)
Title: Home cream separator
Inventor: BAPAT PADMANAB DAMODAR
IPC: A01J11/10
Filed: 1981-11-24
Abstract: Separation of cream from milk is achieved by draining the milk from underneath the cream by means of an appliance consisting of a bung in which are fitted a milk outlet and an air-vent with a flanged socket in which a stopper could be pushed to seal it air tight. In operation the air-vent is sealed and then the bung is inserted firmly in the mouth of the milk bottle. The separation line is noted and the bottle is held upside down over a pint container. When all the cream has collected, the stopper is pulled out, allowing the milk to flow. When the top of cream reaches the previously noted separation line the flow of milk is stopped by re-sealing the air-vent. The milk is collected in the container and cream is left in the bottle. <IMAGE>
Patent GB-2111326-A (GB)
Title: No-break power supply
Inventor: BERMAN LAWRENCE JOHN
IPC: H02J9/06
Filed: 1981-12-01
Abstract: An A.C. power supply conditioner uses semi-conductor diodes (D1) and (D2) and energy storage capacitors (C1) and (C2) to produce a high D.C. voltage which is inverted at (TR1) and (TR2) to provide an A.C. output (L0, N0) without use of isolating transformer. A standby battery system includes a low voltage battery 'B' a DC/AC/DC converter 'E', and a charger 'F'. The inverter may provide a high frequency square wave, pulse-width modulated to form an effective sine wave at input frequency. In the event of a fault, switch G may be automatically changed-over. <IMAGE>
Patent GB-2091921-A (GB)
Title: Well logging
IPC: E21B47/18
Filed: 1979-09-18
Abstract: The accuracy of well logging data transmitted from a downhole location to the surface of the earth is verified by generating the data at the downhole location, storing the data in a subsurface assembly in the well, transmitting signals corresponding to the data to the surface through a first transmission system while keeping the data stored in the subsurface assembly, and recording the signals transmitted to the surface through the first transmission system. Thereafter, the subsurface assembly is transferred to the surface, and signals corresponding to the stored data are transmitted through a second transmission system from the assembly to an electronic processing system. The signals transmitted through the second transmission system are then compared with the signals transmitted through the first system. To increase the effective transmission rate of data from the downhole location to the surface, a first set of signals corresponding to the magnitude of a downhole condition as a function of time during a discrete time interval are generated and transmitted through a first transmission system to computer means at the downhole location. The first set of signals are analyzed in the computer to determine properties of the function selected from the group consisting of mean value, positive and negative peak values, standard deviation value, and fundamental and harmonic frequencies and amplitudes. A second set of signals corresponding to the selected values are generated and transmitted to the surface through a second transmission system.
Patent GB-2117751-A (GB)
Title: Continuous clarification apparatus
Inventor: BOZE RONALD A
IPC: C02F1/52
Filed: 1982-04-02
Abstract: A vessel (12) has a bottom portion (14) and a preferably cylindrical and upwardly extending sidewall (16) defining therewithin a liquid retaining space (18) at least partially filled with a "floc" carrier forming a moving media bed (20) with flow normally being downwardly through the bed. A clear water discharge outlet (6) allows the discharge of clarified effluent from the vessel. An inlet header (80) allows the addition of an influent to be clarified into the vessel. A vertically extending inner separation wall (30) generally concentric with the vessel sidewall defines a moving bed area and an annulus area (35). The annulus area provides a lower scour zone (35A), a middle return zone (35B) and an uppermost reject zone (not shown). The floc carrier is placed within the moving bed area and an aeration means (83) is placed within the vessel annulus with the air being bubbled inwardly in the annulus scour zone where it is lifted thereinto and cleansed. <IMAGE>
Patent GB-2098669-A (GB)
Title: Wind power generatorand control therefor
IPC: F03D9/00
Filed: 1980-10-03
Abstract: A wind powered generator for generating electrical energy comprising a generator (10) which has no slip rings between its field (21) and armature (27) and which when mounted on a tower (15) is controlled through suitable control mechanism to adjust the power output to a level compatible with the load and storage equipment, as well as the existing wind conditions. The control apparatus will prevent overloads and will provide for efficient utilization of available wind. The controls operate mechanism to vary the angle of interceptance of the propeller (28) with the wind. The device is made to be relatively maintenance free and capable of unattended generation of electricity over extended periods of time.
Patent GB-2103273-A (GB)
Title: Scaffolding fitting
Inventor: DAVIES HORACE RAYMOND
IPC: E04G7/14
Filed: 1982-06-03
Abstract: In a scaffolding fitting either the pivoted bolt (15), or the pivoted cover member (12) or each of these components, is provided with a separately formed friction element (24) which is inserted between the pivoted end of the associated component and an adjacent portion of the part on which it is pivoted. Said friction element (24) is adapted frictionally to engage a portion of the surface of said associated component (12 or 15) as the latter is pivoted in order to inhibit free pivotal movement thereof. <IMAGE>
Patent GB-2102691-A (GB)
Title: Rotary filter
Inventor: MORRIS PETER ALAN
IPC: B29C48/691
Filed: 1982-07-26
Abstract: A rotary filter for polymers comprises an inward flow filter drum mounted in a housing and consisting of inner and outer filter barrels 7 and 6 which retain between them a cylindrical filter element 8 of wire gauze or porous sintered metal. The outer barrel has regularly spaced large openings in its outer surface which communicate through the thickness of the barrel wall and via divergent passageways with even larger openings on the inner surface of the barrel. In contrast, the inner barrel has a plurality of much smaller through openings in registry with each of the large openings. The drum is rotated by a hydraulic ram via a pawl and pinion drive to bring successive openings in the outer barrel into communication with passages 22, 23, through which accumulated solids are flashed from the corresponding areas of the filter element by the resulting reverse flow of filtrate. The filter minimizes downstream pressure fluctuations and may be used upstream of an extruder.
Patent GB-2126616-A (GB)
Title: Building blocks
Inventor: RADBURN EDWARD GRAHAM
IPC: E04C1/39
Filed: 1982-09-03
Abstract: Decorative building blocks 1, for laying with a stretching bond and the blocks in each course half overlapping the blocks immediately above and/or below, are cast in reconstructed stone with a pierced pattern. Each half of each block 1 has a pattern component (2 or 3 Fig 2) forming one-quarter of the composite pattern repeat on the resultant wall. The two pattern components 2 and 3 on each full block 1 are relatively reversed laterally, so that the blocks 1 are laid turned upside down in alternate rows. When the wall is to be built with a pattern up to one end of the wall half blocks are provided, each formed with one pattern component 2 or 3, to complete alternate courses of the wall. When the wall is to be built with a patterned section continued with plain blocks, half-patterned blocks are provided for use in alternate courses at the end of the patterned section. <IMAGE>
Patent GB-2107470-A (GB)
Title: Detecting the rotational speed of a shaft
Inventor: DOBLER KLAUS
IPC: G01P3/487
Filed: 1982-09-17
Abstract: A device for detecting the rotational speed of a shaft is disclosed, comprising a generator wheel which is in the form of an annular magnet or a toothed wheel, and an inductive sensor e.g. a Hall effect device, which is located opposite the generator wheel and whose output supplies an alternating voltage which is fed through a high- pass filter which filters out any low- frequency super-impositions from the alternating voltage, the high-pass filter having at least two low cut-off frequencies, that is to say, a lower low cut-off frequency and a higher low cut-off frequency. <IMAGE>
Patent GB-2128754-A (GB)
Title: Method and apparatus for testing a fluid
Inventor: PARRA JAIME ARTURO DONOSO
IPC: G01F1/684
Filed: 1982-10-05
Abstract: Apparatus for testing a fluid comprises a flow conduit 10, a probe 15 having an inlet opening 32 which is disposed in a circular cross-section portion 16 of the probe 15 and which communicates with an outlet opening 35 which is disposed in a non-circular cross-section portion 17 of the probe 15, the latter portion 17 being such that the points at which boundary layer separation occurs are not substantially affected by variations in the fluid flow rate turbulent intensity or by the characteristics of the fluid, the probe 15 being provided, between the said circular and non- circular cross-section portions 16, 17 with a flange or plate 18 and measuring means 41, 42. Flow rate is measured using electrically heated thermisters or Pt resistance thermometers. Other parameters such as density, temperature, pH, conductivity and oxygen content may be measured. <IMAGE>
Patent GB-2116985-A (GB)
Title: Isolating rubber from guayule plants
Inventor: GUTIERREZ RICHARD
IPC: C08C2/06
Filed: 1983-03-04
Abstract: A process is disclosed for recovering rubber from guayule plant material which comprises forming an aqueous suspension of resin/rubber particles of about 0.8-13 mm. diameter and extracting them with an oxygenated organic solvent for resin is described. The suspension of particles is formed by removing organic solvent by evaporation from a rubber/resin solution extracted from the plant in the presence of water containing at least one surfactant e.g. a surfactant and a metal salt of a fatty acid.
Patent GB-2117282-A (GB)
Title: Method and apparatus for the plating of strip by rolling
Inventor: RENNEBAUM HEINRICH
IPC: B23K20/04
Filed: 1983-03-29
Abstract: Strips of two materials such as stainless steel 1 and aluminium 10 are conducted over heated rollers 2, 3, 4 directly forwardly of the roll gap 5, 6 whereby they are rapidly heated over a short distance to the desired diffusion-bonding temperature and while being heated up the strips are brought together, there being no need to guide the strips through a protective gas atmosphere. In the roll gap 5, 6 besides diffusion bonding, a thickness reduction takes place, which is however limited in such a way as to eliminate the need for subsequent heat treatment of the compound material at a sufficiently high temperature for recrystallisation of the component material having the higher fusion temperature which is not possible due to the presence of the other material having the lower fusion temperature. <IMAGE>
Patent GB-2121620-A (GB)
Title: Connectors pins for printed circuit boards
Inventor: ARMISTEAD TREVOR
IPC: H01R12/58
Filed: 1983-06-07
Abstract: A metal connector pin for use with printed circuit boards provided with through-plated holes has a plug portion (14) which comprises a plurality of generally axially extending legs (16, 18), at least one of which contains an outwardly directed kink (20) for resiliently engaging the side of the hole. <IMAGE>
Patent GB-2131015-A (GB)
Title: Purification of hydroquinone
Inventor: HOSAKA HIROKAZU
IPC: C07C37/74
Filed: 1983-06-22
Abstract: Hydroquinone is separated from a crude preparation containing it by distilling the crude preparation to generate hydroquinone vapor and condensing the hydroquinone vapor in the presence of the water vapor to give an aqueous solution of hydroquinone.
Patent GB-2124629-A (GB)
Title: 3,3,3-Trifluoro-2- trifluoromethylpropylbenzene
Inventor: KOBAYASHI YOSHIRO
IPC: C07C17/32
Filed: 1983-08-05
Abstract: 3,3,3-Trifluoro-2-trifluoromethylpropylbenzene:   <IMAGE> is prepared by reacting benzene with 1,1-bis(trifluoromethyl)ethylene in the presence of an acid catalyst. The compound is useful as an intermediate, for example for the production of the anti-inflammatory agent 2-[4-(2-trifluoromethyl-3,3,3- trifluoropropyl)phenyl]propionic acid, by reacting the intermediate with propionyl chloride to produce (2- trifluoromethyl-3,3,3- trifluoropropyl)propiophenone. The phenone is reacted with methanol in presence of thallium nitrate followed by hydrolysis to obtain the desired propionic acid.
Patent GB-2131213-A (GB)
Title: Alarm apparatus
Inventor: MAXWELL LEONARD GEORGE
IPC: G08B13/14
Filed: 1983-08-22
Abstract: A self contained alarm apparatus for anti-theft or intruder alarm purposes consists of a housing (1) attachable or connectible to an article to be protected such as a video tape unit, the housing (1) containing an inertia sensor switch (2) responsive to movement and/or vibration associated with the article and in circuit with a high pitch sounder emitter or "siren" (3). A movement responsive device (20) responsive in particular to inclining movement of the article (8) and housing (1) is shown consisting of a ball (22) in a closed tube (21), rolling of the ball (22) causing activation of the inertia sensor (2). The housing (1) is attachable to the article (8) by double sided adhesive material or by Velcro fastening or by pull cord connection. The apparatus may also serve as an intruder alarm in which case it contains or carries a reed switch or more than one such switch in circuit with the sound emitter (3) and for co-operation with a magnet so that on their relative movement the sound emitter (3) is operated. <IMAGE>
Patent GB-2148682-A (GB)
Title: Fishing float
Inventor: LEDGER JAMES
IPC: A01K93/00
Filed: 1983-11-05
Abstract: A fishing float (10) has a loop (20) which is open or openable to permit an endless region of a fishing line to be passed therethrough or removed therefrom, the loop acting to retain a fishing line therein during use. By providing a loop which is open or openable, in contrast to closed prior art loops, a fishing line can be readily removed from a float without requiring removal of tackle or breaking of the line. The float can then be readily replaced on the line as desired, or replaced by another float in accordance with the invention. <IMAGE>