baber/WOPTO huggingface dataset:
Patent GB-2011610-A (GB)
Title: Fibre optic terminal
IPC: H04B10/40
Filed: 1978-11-17
Abstract: A fibre optic terminal (1) for use with a bidirectional optical fibre (6) including an optical receiver (2) which is positioned adjacent an end (5) of the optical fibre so as to receive light (8) emitted therefrom, and an optical emitter (4) so arranged as to emit light (7) from a position intermediate the optical receiver and the end of the optical fibre onto the end of the optical fibre. In alternative embodiments the detector may be annular with an emitter in the centre (Fig. 3 not shown), or with light introduced into the centre via a further light guide (Figs. 6, 7, 8 & 9 not shown) or the emitter may be affixed to the end of the light guide (Fig. 4 not shown), or the light guide may contain a grounded layer of semiconductor material. In another embodiment the emitter is formed in a semiconductor substrate which also forms the optical receiver. <IMAGE>
Patent GB-2035132-A (GB)
Title: Coated glass and ceramic substrates
IPC: C04B41/51
Filed: 1978-11-24
Abstract: The invention involves the placing of a strongly bonded metal/ metal oxide layer, of either zirconium, titanium, hafnium or their alloys, onto the surface of a glass or ceramic object for security identification or decorative purposes. The metal/metal oxide layer is deposited on the glass or ceramic object by the movement of a sharp tool, of either zirconium, titanium, hafnium or their alloys, across the surface in conjunction with the application of normal hand pressure. The deposition process is aided by the presence of water at the point of contact. The invention permits vehicles windows to be marked with their registration number or other code to aid identification in the case of loss or theft. The process can also be used to place decoration, information or identification marks on glass or ceramic objects.
Patent GB-2015758-A (GB)
Title: Camera exposure control
IPC: G03B7/16
Filed: 1979-02-09
Abstract: An exposure control circuit is connected to receive the output signal from a focus detecting circuit so that, during the taking of a flash photograph, exposure time and/or shutter aperture is a function of the distance of the object to be photographed. As shown, the camera is automatically focussed by a system 13-24. When a flash exposure is made, a capacitor 4 charges via a photo-sensitive element 3 and a parallel resistor 7. When the capacitor voltage equals a reference voltage derived from the system 13-24, an electromagnet closes a shutter-diaphragm (not shown). Figures 3, 4 and 5 (not shown) show alternative ways of introducing the focus value into the exposure control circuit. <IMAGE>
Patent GB-2046331-A (GB)
Title: Improvements in or relating to mineral mining installations
IPC: E21C35/12
Filed: 1979-04-10
Abstract: A mineral mining installation (1) incorporates a conveyor (2) composed of pans (4). A drive assembly (16) is attached to the drive head (10) and is arranged to drive the conveying flight of the conveyor. A guide track (30) is provided on the goaf side of the conveyor pans (4) extending the length of the face and up to the connection between the drive assembly (16) and the drive head (10). A machine (40) has shoes (48) which slide on the track (30) and rollers bearing on a further track on the face side of the conveyor, the machine underframe (44) thus straddling the conveyor (2). <IMAGE>
Patent GB-2025825-A (GB)
Title: Manually operable cutting pliers
IPC: A01G3/025
Filed: 1979-05-01
Abstract: Manually operated cutting pliers in which two hinged plier grips are spread apart by spring action. One of the plier grips has a fixture, whereas the other grip actuates a jaw movable relative to the fixed jaw by a sliding drive. At least one of the two jaws on a side facing the other, has a cutting edge. The two plier jaws can be enclosed around a workpiece to form a closed jaw arrangement with a width which can be reduced to substantially zero by opening and closing the two plier grips. The movable jaw may be pivotally mounted on the outer end of the fixed jaw and is formed by a clamp to be placed around the workpiece. During closure, the clamp engages the sliding drive, and when it is actuated, the workpiece is gradually pinched between the jaws and finally split.
Patent GB-2017509-A (GB)
Title: Absorbent pads
IPC: A61F13/15
Filed: 1979-05-15
Abstract: An absorbent pad particularly for use as a babies' nappy or an incontinence pad, the pad including at least one layer of material having means such as folds, pleats or crinkles to promote the passage of moisture along the pad in one direction preferentially to another direction transverse to the first direction. The pad may include several of such layers arranged so as to spread moisture, applied to the pad, throughout the whole area of the pad.
Patent GB-2021878-A (GB)
Title: Electrical connectors
IPC: H01L23/40
Filed: 1979-05-21
Abstract: A system for connecting an LSI device to a printed circuit board comprising a leadless ceramic carrier 11, a leaded socket 20 and a cover member 50 wherein contact is made between the LSI device and the printed circuit board through staggered rows of closely spaced contact pads on the surface of the carrier 11 and contacts 40 contained in the socket 20. The LSI device is positioned within a recess 12 in the carrier which itself is seated within a recess 33 in the socket 20, staggered rows of contact areas 41 abutting the carrier contact pads. The cover member 50 presses the carrier 11 onto contact areas 41 and also serves to dissipate heat generated. <IMAGE>
Patent GB-2027746-A (GB)
Title: Surface treated steel materials
IPC: C25D11/00
Filed: 1979-06-05
Abstract: A surface treated steel materials coated with manganese having a film of MmOOH (manganic hydroxide) formed thereon, which show excellent corrosion resistance, workability and weldability. The surface treated steel materials may be further coated with zinc as a base coating underlying the manganese coating or further coated with a coating of at least one selected from the group consisting of P, B, Si, Cu, Mn, Cr, Ni, Co, Fe, Zn, Al, Ca, Mg, Ti, Pb, Sn, inorganic carbon and their compounds and still further coated with an organic coating. The film of MmOOH (manganic hydroxide) is formed by a treatment in an aqueous solution containing Cr6+.
Patent GB-2052639-A (GB)
Title: Rotary Positive-Displacement Fluid-Machines
IPC: F01C3/06
Filed: 1979-06-26
Abstract: A machine that may be an I.C. engine or a pump has a spherical chamber a containing both a squat cylindrical rotor b with a shaft e and an oblique revolving plate f. The rotor and the plate are interconnected by sliding blocks k. Working-fluid ports s, r communicate with the spaces between the rotor and the plate, the volumes of these spaces varying owing to the mutual inclination of the rotation axes HL, PL of the rotor and the plate. <IMAGE>
Patent GB-2025866-A (GB)
Title: Apparatus for Producing Simulated Views of a Scene from a Model of the Scene
IPC: G09B9/05
Filed: 1979-07-19
Abstract: The apparatus moves the model of the scene relatively to a viewpoint above the model; the view being produced from the viewpoint. The problem to be overcome is that of moving the model smoothly in all the directions required to produce the necessary views. The apparatus includes two frameworks; one framework 17 being movable in a first direction relatively to a fixed support 13, the other framework 23 being movable relatively to the first framework in a second direction, which is inclined relatively to the first direction. The model 10, 11 is mounted on the second framework for rotation about an axis fixed relatively to the model. This mounting of the model gives three degrees of movement of the model which are sufficient to allow all required movements of the model. <IMAGE>
Patent GB-2028147-A (GB)
Title: Dice game based on pool
IPC: A63F9/04
Filed: 1979-08-24
Abstract: Game apparatus for use in playing a game based on the game of "Pool" comprises a plurality of numbered and/or coloured indicia representing balls of a "Pool" set, means for selectively obscuring each indicium and random number/colour generating means for generating numbers/colours corresponding to the numbers/colours of the ball representing indicia. The apparatus comprises a rectangular board having a recessed playing area (20), a row or rows of indicia (B), conveniently seven circles numbered 1-7 and each of a different colour, one circle coloured black and numbered 8, and seven circles numbered 9-15 each carrying a stripe of a different colour on a white background. Random colour/number generating means comprise two pairs of dice (D, D') each pair having two faces blank, the remainder numbered/coloured to correspond to the indicia. "Pocketing" of a particular ball is represented by obscuring the corresponding indicium conveniently by a slidable cover (25) having a fingerpiece (26) whereby it can be slid from retracted position exposing the indicium to forward position in which the indicium is covered. <IMAGE>
Patent GB-2067550-A (GB)
Title: Oxidation of carene
IPC: C07C45/28
Filed: 1979-09-04
Abstract: Oxidation of (+)-3-carene with hydrogen peroxide in the presence of water and of a molybdenum or tungsten containing catalyst gives a very high total yield of 3,4-dihydroxy- 3,7,7-trimethylbicyclo[4.1.0]heptane and 2,2-dimethyl- 3-(2-oxopropyl)cyclopropylethanal, both precursors to pyrethroid insecticides.
Patent GB-2034755-A (GB)
Title: Reduction of Metal Oxides
IPC: C22B/
Filed: 1979-09-14
Abstract: Process for the reduction of metal oxide(s), preferably in the form of pellets, by heating such in the presence of a solid reducing agent, e.g. pit-coal, in a retort (S) and causing the gaseous reaction product(s) to move at least partially in co-current flow with the direction of flow of the charge (K). An apparatus for carrying out the process comprising at least one retort (S) which has an inlet (25, 26) at the top for admission of the charge (K), an outlet (36, 37) at the bottom of the retort (S) for discharge of the spent charge (K) and a gas outlet (33, 20), separate from the outlet (36, 37), at the bottom of the retort for discharge of gas(es). <IMAGE>
Patent GB-2032816-A (GB)
Title: Annular movement mechanism for drilling machine
IPC: E21B15/04
Filed: 1979-10-03
Abstract: The feed mechanism (3) for a rock drill (1) can be swung about an axle (5) between horizontal and vertical positions by means of a hydraulic cylinder (6) under the control of a directional valve (10). The feed mechanism (3) can also be tilted by means of a second hydraulic cylinder (12) of limited-stroke to establish a desired "look-out" angle for the drill feed direction, the second cylinder (12) being driven by a third hydraulic cylinder (13) under the control of a second directional valve (20). <IMAGE>
Patent GB-2036682-A (GB)
Title: Mechanism for inverting containers of an endless conveyor
IPC: B65G47/40
Filed: 1979-11-15
Abstract: Mechanism for inverting the buckets (3) of an endless conveyor has first and second latch members (7, 8) pivotally mounted on a common shaft (11) above the conveyor path. The first latch member (7) preferably has two spaced arms supporting a transverse latching element which is designed to engage a leading curved lip (4) of a bucket (3) to partially invert the bucket on forward movement of the conveyor. The second latch member has two spaced arms supporting a transverse latching element which is arranged to move into the conveyor path and engage a flange (5) on the bucket (3) to complete inversion on continued movement of the conveyor. <IMAGE>
Patent GB-2041120-A (GB)
Title: Improvements in or relating to vehicle brake assembly
IPC: B60T11/04
Filed: 1979-12-06
Abstract: In a cable operated, vehicle parking brake assembly having a pair of parking brakes operated by the ends of a single cable (3) which passes around an arcuate balancing link or lever (4) mounted on a manually displaceable transmission member (2), a guide member (6) is also mounted on the transmission member (2) the guide member (6) having arcuately convergent, inturned ends (61, 62) constituting guides for cable portions (31, 32), brake cable adjustment to compensate for cable elongation being effected by axial displacement of a nut (5) to displace the link (4) along transmission member (2) while the guide member (6) remains stationary. The adjustment does not alter angle  alpha . As shown, cable portions (31, 32) are also guided by fixed guide means e.g. guide blocks (9) - in the case of the end regions of the cable having an external sleeve the guide blocks are replaced by abutment or stop members to abut against sleeve ends. During fitting of cable position of member (6) may be effected by nut (7). <IMAGE>
Patent GB-2037286-A (GB)
Title: Process for the preparation of substituted malonic acid dinitriles
IPC: C07C255/00
Filed: 1979-12-07
Abstract: A process for the preparation of an aromatically or heteroaromatically- substituted malonic acid dinitriles which comprises introducing separately, in gaseous form, into a reactor, an appropriate aromatically- or heteroaromatically- substituted acetonitrile and cyanogen chloride, the reaction being carried out in the gas phase at a temperature of from 550 to 800 DEG C. The dinitriles may be used, inter alia, in the preparation of pharmaceuticals.
Patent GB-2069015-A (GB)
Title: Tape drives
IPC: D03D47/27
Filed: 1980-02-09
Abstract: A tape wheel 8 is oscillated by a sector gear 12a driven by a crank and rod 18, the little end 17 of the rod 18 acting in a slider 20 on the sector and having a link 15 connected by an eccentric 14 to a fixed part of the loom to provide adjustment of the stroke of the sector. <IMAGE>
Patent GB-2053368-A (GB)
Title: An open impeller for a centrifugal pump
IPC: F04D7/04
Filed: 1980-06-13
Abstract: There is disclosed an open impeller 2 for a centrifugal pump 1, for example an effluent pump, in which the blades comprise two groups, with the blades 3 of one group being of a width, measured parallel with the rotational axis of the impeller, which is at least 15% greater than that of the blades 4 of the other group. The blades 3 are interspersed with the blades 4 about the rotational axis of the impeller and the blades of each group are arranged symmetrically about the rotational axis of the impeller so that radial flow symmetry is preserved. The provision of the blades of different height in the impeller has the effect of avoiding clogging of the impeller in operation by solids, and in particular textile pieces, to which prior impellers used in similar conditions were subject. <IMAGE>
Patent GB-2054226-A (GB)
Title: Transmitters and receivers for the transmission of parallel data in serial form
IPC: G08C15/12
Filed: 1980-06-25
Abstract: A data transmission system in which a multiplexer scans a plurality of switches under the addressing control of a parallel binary output of a counter driven by clock pulses. If any switch is closed, the counter is stopped temporarily and a UART is loaded with the particular parallel binary output. The counter is restarted to continue the search whilst the UART transmits a serial form of the said output down a single channel. The UART thus transmits signals which repeatedly identify in sequence those switches which are closed. <IMAGE>
Patent GB-2059800-A (GB)
Title: Gas-liquid separating column
IPC: B01D3/22
Filed: 1980-09-08
Abstract: Various disadvantages which arise in providing multiple channel overflows 3 on the trays 2 of a co- current separating column are obviated or mitigated by enclosing the co-current elements on each tray in separator housings 7 upstanding on the tray. Preferably the bottom edges of the separator housings are fixed to the trays either directly or through solid or perforated vertical baffles, or through baffles combined with vertical separators. Vertical sections or sloping-roof sections of the separator housings are made with either V or U section corrugations or channels. The active surfaces are defined by the system of channel overflows. <IMAGE>
Patent GB-2057290-A (GB)
Title: Gas filter
IPC: B01D46/26
Filed: 1980-03-20
Abstract: A wet dust filter plant including a filter unit in which a filter drum revolves slowly in a casing containing water, has serious disadvantages arising from the effect of the entering dry dust-laden gas on the drum. The difficulty is overcome by providing gas supply ducting in the form of a nozzle device whereof the discharge opening is positioned for total immersion in the water so that the entire gas flow enters the water before contacting the revolving drum. In this way the harmful effects of the impact of dry dust-laden gas on the drum are avoided. A particularly advantageous form of nozzle device has a downwardly and inwardly sloped venturi passage terminating at its lower end in a totally immersed outlet throat from which the gas flows as a downward and inwardly sloped jet tangential to the drum.
Patent GB-2066878-A (GB)
Title: Apparatus for producing target- directed bores
IPC: E21B47/022
Filed: 1981-01-05
Abstract: A directable boring bar 1 has an inner rotatable portion 3 and an outer stationary portion 4 mounting inclination meters 14. Control rails 9 extending along the bar 1 are moved outwards by hydraulic rams 10, 11 to control the direction of the bar. Hydraulic pressure and electrical power are generated from the rotation of the inner portion 3. <IMAGE>
Patent GB-2070158-A (GB)
Title: Rotary transmission
IPC: F16H3/08
Filed: 1981-01-22
Abstract: A rotary power transmission has gear trains (eg. 17, 24, 22, 27) each being one of a set providing a series of increasing speed ratios, and two clutches (14, 33) independently operable and providing alternative drive paths through the gear trains between a common input (11) and a common output (12), the gear trains of alternate ratios in the set being driven through one and the other clutch; a driving shaft from the input (11) carries a gear wheel (17) of the lowest forward speed ratio and passes through a hollow driving shaft (16) for a gear wheel (22) of the next forward speed ratio in the set. <IMAGE>
Patent GB-2089334-A (GB)
Title: Recovery of pure magnesium values
IPC: C01F5/24
Filed: 1981-02-26
Abstract: A magnesium carbonate of high purity is recovered from an aqueous magnesium hydroxide slurry containing at least 1 percent of magnesium hydroxide, water, and impurities normally associated with magnesium hydroxide slurries. The slurry is carbonated with sufficient carbon dioxide to dissolve a substantially proportion of the magnesium hydroxide therein as magnesium bicarbonate, carbonation is continued until a solution saturated with magnesium bicarbonate is formed, a portion of the magnesium bicarbonate is converted to a crystalline magnesium carbonate and substantially all dissolved calcium is precipitated, so that the slurry contains dissolved magnesium bicarbonate, a crystalline magnesium carbonate precipitate and a calcium carbonate precipitate. Solids are then separated from the magnesium bicarbonate solution, the solution is decarbonated, for example by heat or vacuum, and hydrous magnesium carbonate is separated from the aqueous phase. <IMAGE>
Patent GB-2072703-A (GB)
Title: Stress-relief annealing of ferrous metals
IPC: C21D1/30
Filed: 1981-03-20
Abstract: The invention relates particularly to tubes or bars of iron or steel which after plastic deformation (typically in the range 20-60% reduction in area) resulting in a flattened grain structure, are annealed in such a way as to retain that grain structure. A hardness in the range 55-125% of the hardness of materials treated by full annealing can be achieved.
Patent GB-2078030-A (GB)
Title: Protected servomechanism
IPC: G11B21/10
Filed: 1981-05-22
Abstract: A head positioning servomechanism 12 for positioning a head in a data storage file is protected against uncontrolled acceleration by the provision of a saturation detector (14, 16 and 22) monitoring the output level of an inhibitable power amplifier (10) and providing, to a timer (23 and 26) an output indicative of saturation of the amplifier 10, the timer (23 and 26) responding to the detector output by providing an inhibiting input to the amplifier 10 in the event of saturation persisting continuously for longer than a predetermined period. <IMAGE>
Patent GB-2080796-A (GB)
Title: 2-Hydroxy-5-phenylazobenzoic acid derivatives
IPC: C09B29/14
Filed: 1981-07-07
Abstract: Mainly novel 2-hydroxy-5-phenylazobenzoic acid derivatives of the general formula:-   <IMAGE> wherein X is an -SO2- or -CO- group and R is either an unsubstituted or substituted non-heterocyclic aromatic ring system or is a radical of the general formula -(CH2)n-Y, in which Y is a hydroxyl group, an unsubstituted or substituted amino group or a carboxylic or sulphonic acid group and n is a whole number of from 1 to 6 and in which one or more of the hydrogen atoms in the alkylene radical can be replaced by unsubstituted or substituted amino groups or alkyl radicals and in which the (CH2)n-Y radical is either attached directly to the nitrogen atom or via a benzene ring, and the esters and non-toxic, pharmacologically acceptable salts thereof are of use in treating ulcerative colitis.
Patent GB-2102711-A (GB)
Title: Machine for deburring metal sheets or the like
Inventor: KUNZ UDO
IPC: B24B9/00
Filed: 1981-07-24
Abstract: A machine (1) for deburring the edges (2) of metal sheets (3) or the like comprises rotating wire brushes (4 and 5), a number of such brushes (4 and 5) driven in opposite directions being provided adjacent to one another in the direction of advance of the workpieces (3), in the region of at least one longitudinal side of the workpieces (3). These brushes (4 and 5) rotatable in opposite directions are mounted one common shaft (11) or spindle extending parallel to the direction of advance (Pf1) and adjacent brushes (4 and 5) rotate in opposite directions to each other, as a result of the provision of reversing gears, intermediate gears or the like. As a result, both edges of the rim of metal sheet are acted upon sufficiently strongly by the brushes (4 or 5) rotating against these edges, in a single operation, so that there is no need to turn the workpiece in order to deburr it. Moreover, this arrangement makes it possible to drive the entire row of brushes with one or two drive motors, and the row of brushes may be of any desired length. <IMAGE>
Patent GB-2104327-A (GB)
Title: Pulse circuits
Inventor: RICHARDSON ROBERT
IPC: H05K1/16
Filed: 1981-08-08
Abstract: A pulse circuit forms part of a radar transmitter in which a pulse forming network is used to generate a high current pulse at relatively low voltage and to feed it via a transformer to a magnetron which operates at typically 30 kV. A number of pulse forming networks are connected in parallel and are discharged by respective thyristors. The outputs of the pulse forming networks are combined so as to provide a low voltage pulse (of the order of 600 volts) having sufficient power to drive a radar transmitter. The pulse forming networks must each be capable of handling very large currents and must have characteristics which are identical to each other. To enable these requirements to be met, each pulse forming network includes an inductor which is formed as a coiled thin conductive layer lying on the surface of an electrically insulating board. It is formed by printed circuit board techniques and a mirror image coil is formed on both sides of a double sided printed circuit board. All pulse forming networks are connected via a common double sided printed circuit board to the primary winding of a pulse transformer.