baber/WOPTO huggingface dataset:
Patent GB-2128326-A (GB)
Title: Non-intrusive liquid level switch
Inventor: WILSON DAVID
IPC: G01F23/296
Filed: 1982-10-05
Abstract: A liquid level switch comprises transmitter (1) and receiver (2) piezo- electric elements mounted on the wall (3) of the container and operating at an ultrasonic frequency. A comparator (12) detects a change in the received signal, which is predominantly a plate or shear wave signal, and provides a control signal to cause a relay (13) to operate. Plate or shear waves are found to provide a significantly greater response to detect e.g. a water/air interface than hitherto conventional ultrasonic level sensors. <IMAGE>
Patent GB-2131760-A (GB)
Title: Elevator arrangement
Inventor: FOSTER NORMAN ROBERT
IPC: B66B9/10
Filed: 1982-11-03
Abstract: Elevator apparatus in two parts of a building or in adjacent buildings, has two generally vertical track portions 10, 11 interconnected by at least one generally horizontal track portion. One or more cars 16 run along said portions so that, for instance, a passenger can travel from a position in one of the vertical portions to a position in the other via the horizontal portion. The cars are connected to guide bars 13, via gimbals 14, and are pulled along by hoist cables 15. <IMAGE>
Patent GB-2131114-A (GB)
Title: Screw and screwdriver
Inventor: CHANG CHUNG-HSING
IPC: B25B15/00
Filed: 1982-11-25
Abstract: The improved type of slotted head screw is characterized in that it is further provided with a groove (23, 43), at the center thereof, which is deeper and less dimension than its slot (22, 42). To match this construction, a screwdriver (30, 51), is further provided with a central protrusion (32, 52) at the extremity of the wedge shaped or fluted operating end thereof. This arrangement allows better torque transmission through the existence of more points of contact between screw and driver. <IMAGE>
Patent GB-2112627-A (GB)
Title: Elasticized disposable diaper
Inventor: KARAMI HAMZEH
IPC: A61F13/15
Filed: 1982-12-07
Abstract: A disposable diaper having elasticized crotch seals formed from elastic members 34, 36 secured to the backing sheet 22 within 0.75 inch (1.9 cms) of the absorbent pad 26 and under such tension as to eliminate transverse pleats in the crotch area while minimizing the size of the crotch seals. <IMAGE>
Patent GB-2135165-A (GB)
Title: Controlled growth of moss
Inventor: CARUS DR EDMUND
IPC: A01G31/00
Filed: 1983-02-11
Abstract: A method of growing moss comprises placing a single species of sphagnum moss (1) upon a support (4), placing the support adjacent a supply of hydroponic nutrient (3) and allowing the moss to grow into the nutrient. A mist spray (5) of water or nutrient may be provided. <IMAGE>
Patent GB-2136464-A (GB)
Title: Producing milled effects on textiles
Inventor: KETTLEWELL ROY
IPC: D06C23/02
Filed: 1983-03-09
Abstract: Wool textile garments and fabrics, produced from worsted spun yarns, are given textured effects by printing on to selected areas of the garment or fabric a silicone fluid, thereafter subjecting the garment to an aqueous shrink resist treatment, and then milling the garment or fabric to develop the effect. The areas which have been printed with a silicone fluid are not protected by the shrink resist treatment therefore are milled up during the milling treatment and contrast with the remainder of the fabric or garment background which remains clear. The process is applicable to botany wool knitwear and wool worsted woven fabrics.
Patent GB-2112618-A (GB)
Title: A tine assembly for an agricultural machine
Inventor: STREET RAYMOND BERNARD
IPC: A01F15/08
Filed: 1982-07-13
Abstract: A tine assembly for an agricultural machine comprises at least one substantially U-shaped tine structure having a bight (12) and two spaced substantially parallel legs (5, 6) constituting tines. The legs pass through holes in a tine support bar (2) and the tine structure is secured to the support bar by at least one removable spring clip (13) having a first opening resiliently engaging around part of the bight and a second opening resiliently engaging around part of the support bar.
Patent GB-2116555-A (GB)
Title: Preparation of ortho-methyl anilines from ortho-amino benzyl sulfoxides
Inventor: CHUPP JOHN PAUL
IPC: C07C67/00
Filed: 1983-03-16
Abstract: This invention relates, in one of its aspects, to a process for the preparation of ortho-methyl anilines from ortho-amino benzyl sulfoxides. An ortho-amino benzyl sulfoxide is converted to an ortho-amino benzyl halide by reaction with a nonoxidizing acid halide and is converted to a stable quaternary salt by reaction with a tertiary amine preferably in the presence of an alcohol. The quaternary salt may be cleaved by hydrogenation to form ortho-methyl anilines. Other aspects of the invention relate to novel intermediate quaternary salts and to a process for forming those quaternary salts.
Patent GB-2117431-A (GB)
Title: Improvements in or relating to fluid loss reducing additives
Inventor: CONNELL DAVID LONGLEY
IPC: C09K8/32
Filed: 1983-03-28
Abstract: A fluid loss reducing additive for an oil-based well working fluid is the product of mixing together, in an oil or oil-based fluid, lignite or humic acid with an aliphatic amide or hydroxyamide, or a cyclic derivative thereof, containing no primary or secondary amine or amine salt groups.
Patent GB-2120857-A (GB)
Title: Reflectors
Inventor: CLEMMET DR JAMES FRANCIS
IPC: H01Q1/08
Filed: 1983-04-27
Abstract: A reflector arrangement comprises first and second flexible surface elements 14 in parallel spaced relationship and each in a state of tension. A flexible active surface element 16 is located between the first and second flexible surface elements 14 in a predetermined configuration by means of tension members 15 extending between opposed points on the first and second surface elements 14 respectively. The first and second surface elements may be supported by telescopically extendable frame members so that the whole arrangement may be stowed in a small volume. <IMAGE>
Patent GB-2123060-A (GB)
Title: A method of erecting a building construction and a reinforcing element for use in the method
Inventor: HANSEN IB HEMMING
IPC: E04B1/16
Filed: 1982-12-02
Abstract: Load-bearing concrete columns and girders in building constructions are reinforced using sheet-shaped reinforcing elements (14 and 14') which are formed so that they can be stacked, which reduces the cost of storage and transport. The reinforcing elements are moreover formed with edge flaps (19 and 19') which in the finished column extend to or beyond the surface of the column and form readily accesible means to which removable or permanent form elements (25 and 27) or front elements (23) can be secured. The reinforcing elements are also provided with coupling means (21 and 21') which make it easy to assemble them on the building site.
Patent GB-2129901-A (GB)
Title: A fork or clevis bolt assembly in clamps for tubular scaffolding
Inventor: THORLEY DAVID EDGAR
IPC: E04G7/18
Filed: 1983-08-11
Abstract: A fork-bolt assembly 3 is used in clamps for tubular scaffolding generally as means for urging a cover of a clamp hinged to a body towards a seating on the body and so clamp a scaffold tube engaging the seating. The fork-bolt assembly comprises a clevis 22 of sheet metal folded about the rounded surface of the head 21 of a T-bolt. The clevis element has an opening in a medial portion through which the shank of the T-bolt extends. End parts of the clevis element extend into limbs 24 having aligned holes for a pivot pin 12. <IMAGE>
Patent GB-2127369-A (GB)
Title: Retractable radar scanner for aircraft
Inventor: FITZPATRICK ROGER SEAN
IPC: B64C1/36
Filed: 1983-09-02
Abstract: A radar scanner unit for an airborne early warning system comprises an aerodynamic radome pod (1) pivotally mounted on a pylon (2) which is in turn pivotally mounted on a framework (19). The pod (1) can be retracted towards the framework (19) and the unit can be bodily fitted via a standard cargo loading aperture into the fuselage of an aircraft. In flight, the pod (1) can be deployed from and retracted into the aircraft fuselage via the cargo-loading aperture, doors (3) being arranged to fit round the pylon (2) when the pod (1) is deployed. The unit may be substantially complete and operative on the ground enabling it to be tested before installation, and may be fitted to a slightly modified cargo aircraft such as a C130 Hercules, C 160 Transall, or a large helicopter. Arrangements of A. E.W. equipment, display and control consoles, and communications equipment removably installed in the cargo hold are also described. <IMAGE>
Patent GB-2128053-A (GB)
Title: Video camera
Inventor: URATA SHINJI
IPC: H04N5/225
Filed: 1983-09-30
Abstract: A lens 1 can be detachably mounted on a body 6 of a video camera by means of an adaptor 3. A diaphragm 4 provided as part of the adaptor 3 is controlled automatically in accordance with video data from an object to be photographed. In an alternative embodiment (Figure 2), the diaphragm 4 is omitted from the adaptor and instead a servo-motor (16) provided in the adaptor 3 is mechanically linked to a diaphragm (2) of the lens 1 itself. <IMAGE>
Patent GB-2148048-A (GB)
Title: Photocathode for a crossed-field discharge tube
Inventor: ARMSTRONG NICHOLAS
IPC: H01J23/05
Filed: 1983-10-12
Abstract: In a magnetron, emission of primary electrons from a platinum cathode 1 is caused photoelectrically by directing ultraviolet light onto it from an ultraviolet source 7. The primary electrons, returning to the cathode, cause the release of secondary electrons causing resonance and the generation of microwave energy in the usual way. Once the emission of secondary electrons has begun, source 7 may be switched off. <IMAGE>
Patent GB-2155258-A (GB)
Title: Control circuit for a fluorescent tube
Inventor: STANWELL-SMITH COLIN
IPC: H05B41/04
Filed: 1984-01-27
Abstract: A control circuit for insertion into the starter socket 24 of a fluorescent light fitting permits the light to be switched off or dimmed while the mains light switch 20 remains on. When switches 32,34 are closed by a control circuit 36, a short is placed across the socket 24 so as to prevent the flow of discharge current through the gas in the 30 tube 14. An alternative embodiment uses the same switch (38, Figure 3) for starting and stopping. The control circuit may have timing means to turn off the light after a predetermined time, or may be responsive to the ambient light level, or may be remotely controlled by signals transmitted over the mains wiring or by radio, infrared or ultrasonic waves. To prevent the tube 14 firing again on removal of the short, the short circuit current may be caused to decay gradually or may be switched off at such a time relative to the current flow through choke 22 that the induced voltage will not fire the tube. Circuit 36 may be arranged to close switch 32 during starting only after switch 20 has been toggled a preset number of times. The shorting means may be activated cyclically to interrupt current through the tube during part of each mains cycle, thereby resuming the light output from tube 14 rather than turning it off completely. <IMAGE>
Patent GB-2155809-A (GB)
Title: Coated friction braking element
Inventor: HARTLEY LOUIS GUY
IPC: B05D5/10
Filed: 1984-03-16
Abstract: A friction braking element and a method of manufacturing such an element. A braking contact surface is applied to a non-asbestos or semi-metallic friction material by coating with polymeric material to increase the initial coefficient of friction of the element during bedding-in as compared with that which would result in the absence of the coating. The coating which may be brushed, sprayed or electro-phoretically deposited is preferably an epoxide, esterified epoxide or polybutadiene elastomer modified with phenol formaldehyde resin or resin derived from phenol and/or melamine.
Patent GB-2152975-A (GB)
Title: Controller for the vertical positioning of mineral plough
Inventor: BRAUN ERNST
IPC: E21C27/32
Filed: 1984-10-30
Abstract: A controller for the vertical positioning of a coal etc., plough is described, having a control shield (3) secured to a face conveyor (2) at the goaf side, which control shield (3) has bearing cheeks (4) for a control lever (5) terminating near the base of the shield (3). The end of the control lever (5) remote from the shield (3) pivots on a driving bar (7). The upper end of the control lever (5) nearest the shield (3) is adapted as a gear segment (8). With the gear segment (8) is meshed a driving worm (9) journalled on the control shield (3) orthogonally to the axis (6) of the control lever (5), above the control lever (5) and is manually drivable at its rearward end. This gives a simple, functionally reliable and compact construction. <IMAGE>
Patent GB-2151311-A (GB)
Title: Fluid-pressure-actuated motor
Inventor: WALSWORTH FRANK J
IPC: F01M3/02
Filed: 1984-11-23
Abstract: A motor 13 comprises a compartment 33 divided by a piston 127 into a higher pressure chamber 125 and a lower pressure chamber 123. Pressure differential between these chambers is supplied by a source of alternating higher and lower pressure, such as the crankcase 67 of engine 8, acting through distributor 151. This last has non-return valves 169, 171 connected to the chambers such that the higher pressure phase pressurises chamber 125 and the lower tends to exhaust chamber 123. Under this differential piston 127 moves, against the bias of spring 141, until wall 213 enters wall 215 to make a small chamber, the pressure of which-allied to the bias of spring 201-forces down valve 193 to establish communication between chambers 123 and 125 so causing the piston to be driven by spring 141 until studs 221 shut valve 193. This allows the pressure differential to be re-established and the cycle to repeat, the repetition occurring at a lower frequency than that of the cycle of pressure alternation from source 67. <IMAGE>
Patent GB-2151277-A (GB)
Title: Non-slip floor
Inventor: WELBURN PAUL
IPC: E04F15/02
Filed: 1984-12-14
Abstract: Non-slip characteristics are imparted to a new or existing floor or ground surface by filling an array of depressions in the surface with material which hardens to give or to support, a non-slip surface, e.g. a synthetic plastics material, to which a coating of silica sand is applied.
Patent GB-2157062-A (GB)
Title: Method of treating waste containing radioactive nuclides
Inventor: MITO NORIO
IPC: C03B5/02
Filed: 1985-03-29
Abstract: In the treatment of waste containing radioactive nuclides, the addition to a heating furnace of a glassy material adapted to act both as a heating accelerator and as a glass former enables substantially improved results to be achieved. Dry distillation takes place at an elevated temperature resulting in thermal decomposition and a relatively reduced amount of dry distilled tar residue. This residue is subject to combustion producing an ashed residue. On further heating the ashed residue is incorporated into the molten glassy material which on cooling shields the radioactive nuclides therein.
Patent GB-2157066-A (GB)
Title: Solid state electrochemical devices
Inventor: GLASSE MALCOLM DAVID
IPC: H01M6/18
Filed: 1985-04-04
Abstract: A solid state cell or timer has an anode of aluminium, zinc, magnesium or calcium, and a solid electrolyte consisting of a polymer material incorporating an inorganic salt to give a polymer/salt adduct. The polymer is for example polyethylene oxide. Various suitable electrolyte salts and cathode materials are disclosed.
Patent GB-2191301-A (GB)
Title: Optical processing apparatus
Inventor: COOPER IAN ROBERT
IPC: G06E3/00
Filed: 1986-04-04
Abstract: Spatial light modulators 21 in an image processing apparatus are each preceded by an array 27 of areas of different reflectivity or transmissivity and means 29 for projecting the input image on to each area, in order to provide parallel addressing of the modulator 21 over different greyscales. The areas 27 may be semi-reflective mirrors. The modulator 21 is a ferroelectric smectic liquid-crystal cell 23 controlled by light reaching a silicon photoreceptor 25. Two such modulators are included in a four-wave mixing apparatus (Fig. 1) for forming the correlation product of two images. <IMAGE>
Patent GB-2175869-A (GB)
Title: Rotary indexing apparatus
Inventor: MYERS TIMOTHY MARK STEPHEN
IPC: G01N9/02
Filed: 1986-05-15
Abstract: Indexing apparatus 10 has surfaces 56, 60 relative, to which articles 32, for example containers for powders or liquid, are to be moved in sliding contact and input 24, work 26, 28 and output 30 stations. A rotary member 14 has walls 66 which, during rotation of the member 14, engage articles 32 at the stations 24, 26 and 28 and move the articles 32 relative to the surfaces 56, 60. Movement of the member 14 is controlled to locate the member 14 in a first position relative to the work stations whereby the walls 66 locate the articles within the boundaries of work areas and then to locate the member 14 in a second position relative to the work stations to locate the walls 66 outside of the boundaries. The work stations may be for determining sample volumes and densities. <IMAGE>
Patent GB-2194161-A (GB)
Title: Elevated span rest
Inventor: MCDONALD PATRICK
IPC: A63D15/10
Filed: 1986-08-21
Abstract: A free standing rest has feet wide apart enough to clear a cluster of balls and is also high over the table top. <IMAGE>
Patent GB-2196455-A (GB)
Title: Frequency synthesiser
Inventor: MUDD MARK STEPHEN JOHN
IPC: G06F1/025
Filed: 1986-10-20
Abstract: A frequency synthesiser and a method of synthesising frequencies in which a chosen binary word is repetitively input to a binary accumulator and the carry-out signal of the most significant of the adders of the accumulator forms the synthesised frequency waveform.
Patent GB-2186160-A (GB)
Title: Method and apparatus for processing speech signals
Inventor: JAIN JASWANT RAJ
IPC: G10L21/04
Filed: 1987-01-08
Abstract: A method and apparatus for processing speech signals is disclosed which is applicable to a variety of speech processing including narrowband, mediumband and wideband coding. The speech signal is modified by a normalization process using the envelope of the speech signal such that the modified signal will have more desirable characteristics as seen by the intended processing algorithm (30), eg narrower bandwidth. The modification is achieved by a point-by-point division (normalization) (26) of the signal by an amplitudes function (AF), which is obtained from lowpass filtering (16) and magnitude of the signal. Several examples of normalized signal are presented both for short and long term normalization. Application to pitch detection and speech coding is described. <IMAGE>
Patent GB-2200518-A (GB)
Title: Data pulse timing
Inventor: REED WILKIN
IPC: H03M5/12
Filed: 1987-01-30
Abstract: A digital data communication system comprises a first station (1 Fig 1) at which a coded information signal 14 is generated comprising a series of bit-signifying data pulses, 15, 16, 17 each occupying a particular time interval T1, T2, T3, each data pulse incorporating, at the commencement thereof, a marker pulse 18, 19, 20. The marker pulses 18, 19, 20 are formed by maintaining the first level B for a first time interval T4, T6, T8 followed by the second level A for a second time interval T5, T7, T9, the sum of each first and second time interval being substantially less than the corresponding time interval T1, T2, T3 occupied by a data pulse 15, 16, or 17. The coded signal is transmitted to a second station (8). Detection of the marker pulses 18, 19, 20 is used to initiate a time delay of one half the particular time interval and then a short pulse is applied to a clock input terminal of a shift register (9). The coded signal is thereby clocked into the shift register (9) and may be displayed at (21), further processed or used at (13) to provide a functional response. <IMAGE>
Patent GB-2200341-A (GB)
Title: Boxes
Inventor: LEWIS BERNARD
IPC: B65D5/56
Filed: 1987-01-31
Abstract: A box has a polygonal section and a base formed by folding a single blank 10. The blank 10 comprises side panels 12 connected to each other by fold lines 14, and each side panel 12 is connected by a fold line 16 to an end flap 18. The end flaps 18 when folded over form the base of the box and they are shaped in such a manner that when folded over they lie in a flat plane and interlock with each other as in a jigsaw puzzle. A base liner may be glued to the inner surface of the end flaps 18. <IMAGE>
Patent GB-2190704-A (GB)
Title: Window assemblies
Inventor: LOCKE MICHAEL ROLAND
IPC: E05D15/52
Filed: 1987-03-26
Abstract: The invention provides a kit of parts and a method, for modifying a window assembly of the kind which may selectively be locked or turned about a vertical axis (B,B') or tilted about a horizontal axis (A) depending upon the position of an operating handle (30), such that for successive positions of the handle (30) a locked-tilt-turn sequence is obtained instead of a conventional locked-turn-tilt sequence. The modifications described include, inter alia, a special keeper (26,29) for the bottom of the window, and a modified stay for the top of the window. <IMAGE>
Patent GB-2205200-A (GB)
Title: Improvements relating to manufacture of elbows for cable trunking
Inventor: TOOK IAN FRANK
IPC: H02G3/06
Filed: 1987-05-22
Abstract: An elbow 5 comprises 3, 1, two sections, each section consisting of a pair of identical parts (1, 3) arranged to interengage, one section pair (1) being welded or otherwise bonded together, the other section pair (3) being attached to said one section pair by screws (35) or spring clips (59). In use trunking extends into the elbow ends up to stops formed in part (1). As shown in (Figs 5-8) the welded parts may alternatively comprise the inside radius of the elbow. <IMAGE>
Patent GB-2192064-A (GB)
Title: Electromagnetic non-destructive sensing/inspection device incorporating a balancing network
Inventor: NICHOLAS MICHAEL JOHN
IPC: G01N27/72
Filed: 1987-06-17
Abstract: A sensing device comprises a primary coil P fed from a generator G and a secondary coil S inductively coupled to the primary coil and having two halves connected into a balancing network. Means T1 detects any signal flowing in a null point of the network and means EC compares the phase and/or amplitude of this signal with the generator signal to produce an error signal. Means SP, CD provide an output signal in accordance with the error signal, and impedance means (eg a light dependent resistor LDR1 acted on by a light emitting diode D1) connected in the balancing network responds to the error signal so as to return the network to a balanced condition. <IMAGE>
Patent GB-2192454-A (GB)
Title: System for measuring optical coatings
Inventor: HOLBROOK MARK BURTON
IPC: G01J1/44
Filed: 1987-06-18
Abstract: Optical characteristics of optical coatings are monitored by measuring variations in a beam of light that has encountered said coatings. A beam of light is split into a measurement beam which encounters the coatings and a reference beam which does not encounter the coating, the reference beam and measurement beam being compared in a single detector. Preferably the measurement is performed during formation of the coating in a vacuum chamber. As shown, light from source 5 is filtered, chopped and separated at 8 into measuring beam 9 which is reflected from the coating on test object 15, and reference beam 21 which is passed along optical fibre 23. The beams are recombined and fed via spatial or rotating aperture filter 25 to single detector 19, the outputs of which are processed by phase sensitive detector 20 and sample and hold circuits 26. Alternatively the reference beam may pass through the vacuum chamber 18. In another embodiment, the two beams are differently modulated and, after recombination are passed through a scanning monochromator before electronic filtering to separate the beams. This embodiment enables noise correction across different wavelengths. <IMAGE>