baber/WOPTO huggingface dataset:
Patent GB-2180829-A (GB)
Title: Precious metal extraction
Inventor: KANDEMIR HUSEYIN
IPC: C22B3/18
Filed: 1986-09-19
Abstract: The present invention relates to a process for the extraction of gold and/or silver from a particulate auriferous or argentiferous sulphide containing substrate which comprises contacting the substrate with an acidic aqueous leach medium containing an aerobic sulphide-oxidizing bacteria so as to oxidize at least a portion of the sulphide to sulphate, and then contacting the oxidized substrate with a chemical reagent in an aqueous medium so as to dissolve gold and silver present in the oxidized substrate. Typically, the chemical reagent is thiourea, chlorine, hypochlorite, chloride, thiosulphate or thiocyanate or a combination thereof.
Patent GB-2196858-A (GB)
Title: Respiratory apparatus
Inventor: GIBSON ROLAND RICHARD
IPC: A61M15/00
Filed: 1986-09-30
Abstract: Respiratory apparatus 10 for internally massaging the lungs to loosen mucus comprises an open tube 11 with a mouthpiece 12 at one end, the tube 11 being connected intermediate its ends to a secondary tube 13 housing means such as an oscillator 14 for imparting vibrations to air drawn into the lungs through the tube 11 via the mouthpiece 12. <IMAGE>
Patent GB-2181356-A (GB)
Title: Surgical clip and tool therefor
Inventor: KIRSCH WOLFF MAYER
IPC: A61B17/10
Filed: 1986-10-06
Abstract: A surgical clip has a pair of arms (10, 11) which may be crimped together by applying a tensile force to a tang (19) with a jaw (50) of an applicator tool. This tool has a body (56) which abuts against both ends of a bridge portion (12) of the clip so that the tensile force may bend the plastically deformable bridge portion (12) to crimp the arms (10, 11) together. As the bridge portion (12) bends, the points of contact between the bridge portion (12) and the body (56) of the applicator tool move closer together, thereby increasing the tensile force needed to bend further the bridge portion to above the value at which a neck (21) connecting the bridge portion (12) and tang (19) fractures. <IMAGE>
Patent GB-2185935-A (GB)
Title: Prepressing laminates
Inventor: BISHOP ROGER BERNARD
IPC: B32B17/10
Filed: 1987-01-05
Abstract: An apparatus (10) for prepressing an assembly (13) of stacked, superimposed glass and plastic sheets for subsequent autoclave lamination to provide a glazing, includes a frame (30) positioned between a delivery conveyor (11) and a discharge conveyor (12) and carrying prepress (35) and support rollers (44). An assembly arrives on the delivery conveyor and is aligned and rotated ninety degrees before entry into the frame. The prepress rollers are rotatably mounted in pairs and attached to air cylinders (40) which retract the rollers during entry to clear a vacuum ring (25) which extends about the peripheral edge of the assembly such that a vacuum can be drawn on the assembly during the application of pressure and then extend the rollers into contact with an upper surface of the assembly to apply pressure thereto. The assembly is supported from its bottom side by the support rollers which are rotatably attached to the frame and are located on either side of a plurality of drive rollers (47) which are rotatably attached to the frame in pairs. The drive rollers are of different diameters and are adjustably mounted on an axis of rotation which is tilted from the horizontal path of the assembly. <IMAGE>
Patent GB-2186681-A (GB)
Title: A construction structure for household ovens
Inventor: CARRERA JESUS SIERRA
IPC: F24C15/08
Filed: 1987-02-16
Abstract: An oven includes a tubular, rectangular cross-section body (1) open at the front and rear, and a perimetric flange (2) which folds over itself, through which flange (2) an oven frame (13) is fastened. Two rectangular side frames (3) of a U-section profile lie outside the body (1) and extend above and below the body (1). The rear opening of the body (1) is closed by a rear panel (7), the rear panel being held in place by a rear bridge (9) attached at its ends to the rear members of the side frames (3). <IMAGE>
Patent GB-2190196-A (GB)
Title: Quantitative gas analysis
Inventor: FRANKLIN ERIC FRANKLIN
IPC: G01N7/14
Filed: 1987-03-20
Abstract: An apparatus for determining the quantity of dissolved gas in a liquid sample comprises a flask 19, having a centre neck 20 and a side neck 24, a moveable piston 26 protruding through the side neck and slidingly sealed in liquid-tight manner in the side neck, a calibrated pipette 21 fitted in the centre neck and a pressure transducer 23 connected to the pipette. A magnetic stirring bar 30 is inserted in the flask and the flask placed on a magnetic stirrer activator to promote expulsion of dissolved gas as a liquid sample in the flask is subjected to reduced pressure. The flask is conically shaped to minimise the possibility of inadvertent trapping of air bubbles. The transducer is detatchably connected to the pipette such that when removed a liquid sample can be introduced through the pipette into the flask. An air bleed hole 28 is provided in the wall of the pipette with a screw closure 29. <IMAGE>
Patent GB-2202287-A (GB)
Title: Disc brake
Inventor: HAINES WILLIAM ERNEST
IPC: F16D65/54
Filed: 1987-03-20
Abstract: A disc brake includes a caliper assembly 11 having a pair of parallel limbs 16 (and 17, Fig. 1) which are interconnected at adjacent ends, one of said limbs 16 being provided with hydraulic actuating means 26, 27 which is movable transversely of the parallel limbs and a support member 12 by means of which the caliper assembly 11 may be mounted to a fixed part of a vehicle. The support member 12 has first and second spaced parallel pins 13 and 14, said first pin 13 slidably engaging in a bore 30 extending transversely of limb 16 of the caliper assembly 11. The second pin 14 extending transversely through an aperture 33 in the limb 16 of caliper assembly 11, said second pin 14 having a sleeve member 32, elastomeric brush means 41 being interposed between the sleeve member 32 and the wall of the aperture 33 to provide compliant location of the caliper assembly 11 with respect to the pin 14. The sleeve member 32 is located on the pin 14 in a manner which will permit limited longitudinal float of the sleeve member 32 relative to the pin 14. <IMAGE>
Patent GB-2189802-A (GB)
Title: Process for the production of a grinding foam body composite
Inventor: OLSCHEWSKI MAX
IPC: C08J9/00
Filed: 1987-03-26
Abstract: A process for the production of a grinding foam body composite, especially of a homogeneous, elastic, microcellular grinding foam body, based on a fibre fleece containing a grinding agent and on a polyurethane foam, wherein onto the fibre fleece containing a grinding agent there is superficially applied a liquid, solvent-free NCO-terminated polyurethane pre-polymer, the coated fleece is assembled to give a formed body and the formed body obtained is polymerised by foam-forming chain elongation, an additional elastic fixing of the grinding agent on the fleece fibres thereby being brought about, the foamed structure formed in the resulting grinding foam body having at least 80% of micropores with a diameter of from 0.1 to 10 mu m. and a fine foam coating on the fibres with a layer thickness of 0.5 to 10 mu m. of at least 90% of micropores with a diameter of 0.05 to 3 mu m.
Patent GB-2188763-A (GB)
Title: Noise compensation in speech recognition
Inventor: SEDGWICK NIGEL CHARLES
IPC: G10L21/0208
Filed: 1987-04-01
Abstract: In speech recognition it is advantageous to take account of noise levels both in recognition and training. In both processes signals are digitised and passed through a filter bank to be separated into frequency channels. In training template signals, Fig. 2b, are prepared. In each frequency region a template signal is made equal to the highest noise level in that region during the whole training process if below this level as shown by dashed lines in Fig. 2c. In recognition the input signal, Fig. 2a, in each frequency region is made equal to the highest noise level in that region if below this level as shown by dashed lines in Fig. 2c. "Distance" measurements for each region on which recognition is based depend on the levels of the template and input signals unless either is represented by noise when the relative levels determine how the distance shall be calculated, as shown in Fig. 2c, where f is the level of the input signal, t is the level of the template signal, and A and B are the noise levels replacing the input and template signals respectively. <IMAGE>
Patent GB-2200850-A (GB)
Title: Ball-firing device
Inventor: THOMAS CHRISTINA
IPC: A63B65/12
Filed: 1987-11-18
Abstract: The open end of a cylindrical housing 12 can be lowered over a ball on the ground, the ball then being retained by clips 17 or bristles (Figures 3-5, not shown), downward force on handle 11 then cocking a spring- actuated ball firing mechanism. In the form shown, the cocked position is held by a projection 19 engaging under member 8 and is released by depression of button 21. The housing 12 then moves along shaft 10 until arrested by collar 13, whereupon the ball 18 is ejected. In a second form (Figures 3-5), spring-loaded ball detents (25A) hold the cocked position, which is released by axially sliding a collar (27A), a ram (23A) then striking the ball to eject it. <IMAGE>
Patent GB-876385-A (GB)
Abstract: 876,385. Stereophonic pick-ups. ERIE RESISTOR CORPORATION. March 23, 1959 [April 14, 1958], No. 9917/59. Addition to 823,241. Class 40 (4). A piezo-electric rod transducer for reproduction of stereophonic records has a cruciform cross-section and has longitudinal electrodes in the corners, two of the flanges being polarized as at 12 and 13 from one electrode to the two adjacent electrodes, and the transducer being connected in a circuit with the one electrode earthed and the adjacent electrodes providing signal voltages. To reduce capacitance and increase signal voltage the signal electrodes 7 and 9 may be made narrow. A second earthed electrode 10 may be provided but is preferably omitted. In polarizing the bar electrode 8 is connected to one polarity while all of electrodes 7, 9 and 10 may be connected to the opposite polarity. Consequent polarization between electrodes 8 and 10 is weak and in any event symmetrical between the planes of flexure so as not to contribute voltage.
Patent GB-2200654-A (GB)
Title: Heating enhancement of resistive evaporation sources in ionisation assisted physical vapour deposition
Inventor: MATTHEWS ALAN
IPC: C23C14/32
Filed: 1988-01-21
Abstract: The enhancement and control of evaporation rates from one or more resistive evaporation vapour sources in physical vapour deposition is achieved by the use of negative ion and/or electron bombardment of the source surface. An electron emitting source 9 is biased negatively with respect to resistive evaporation source 10 which is itself biased positively with respect to the vacuum vessel. <IMAGE>
Patent GB-2217173-A (GB)
Title: Nutritional and medicinal compositions
Inventor: WHITTLE B A
IPC: A23L1/308
Filed: 1988-04-13
Abstract: Compositions in the form of an emulsion or a paste containing polyunsaturated oil providing at least one essential polyunsaturated fatty acid and dietary fibre in the form of for example leguminous seeds containing a phospholipid emulsifying agent, root vegetables and gums have been found to produce a palatable dietary supplement. A leguminous seed may act as emulsifying agent for a fish oil in a supplement for correcting relative dietary defiency of polyunsaturated fatty acids (PUFAs) of the omega-3 and omega-6 series, and the also provides dietary fibre. The palatability of the presentation enhances patient acceptability and compliance. The compositions may be in dose packs or in resealable containers.
Patent GB-882820-A (GB)
Abstract: 882,820. Transformers; selsyn machines. INDUCTOSYN Ltd. Jan. 23, 1958 [Jan. 28, 1957], No. 2312/58. Classes 35 and 38 (2). A rotary position measuring transformer comprises closely spaced stator and rotor discs 15 and 14 of insulating material having windings on their adjacent faces, the rotor being mounted on a hollow shaft 6 through which a driving shaft 66 extends, the two shafts being connected at one end by a flexible bellows 70, the driving, shaft being connected at its other end by bellows 71 to a driving coupling 67 and the hollow shaft being mounted in bearings 4 and 5 within a casing 2. The stator and rotor may be centred with respect to the axis by means of screws 56 and 64, axial adjustment of the rotor and hence the air gap being provided by collars 69 and 65 which locate the bearing housing, and stator tilt corrected by screws 55. A simplified construction embodying centring adjustment without stator tilt correction is described (Fig. 7, not shown). The stator and rotor discs are of insulating material, e.g. glass, the windings, which may be of radially extending hairpin type, being formed thereon by electrodeposition. The stator winding comprises two windings in space quadrature, the conductors being arranged in groups of four; whilst the rotor has a single series winding. Rotor current is supplied via connector 12, leads 96 and 97 and brushes 99 to slip rings 11, the stator winding leads 17 being brought out to connector 18. Specification 801,516 is referred to.
Patent GB-2215741-A (GB)
Title: Dyeing mixed fibrous substrates
Inventor: HOOK JOHN ADRIAN
IPC: D06P3/87
Filed: 1989-02-07
Abstract: A process for dyeing a mixed fibrous substrate (e.g. cellulose/polyester or ceilulose/polyamide) comprises applying to the substrate,     a) at least one disperse dye, b) at least one copper - containing direct or reactive dye, preferably in a sufficient amount to produce a dyeing greater than a 1/1 standard depth; c) a complexing agent having a stability constant (K-value) with the metal of the direct or reactive dye of from 6 to 17 inclusive;   d) a lignin sulphonate dispersing agent; and e) an oxidising agent capable of converting copper (I) to copper (II) at a temperature of 100-130 DEG C at a pH of 5-7 in the process for dyeing the mixed substrate.   The complexing agent (c) may be citric acid, biguanide, aminotrimethylenephosphoic acid, ethylenediamine, glycine, or a derivative thereof. The oxidising agent (e) may be an alkali metal or alkaline earth metal chlorate, bromate or iodate. The dyed substrate may be subjected to chemical after treatment.
Patent GB-2217835-A (GB)
Title: Thickness measurement device
Inventor: KING MICHAEL WILLIAM
IPC: G01B21/08
Filed: 1989-04-07
Abstract: Thickness measuring apparatus for accurately measuring the thickness of a flat object such as a sheet material. The apparatus includes a radiation type measuring device (15), e.g. a laser type device which can measure the distance to a first surface of the oblect and an eddy current type device (16) which can measure distance to the other surface of the object. The thickness is obtained by subtracting the two distances. The eddy current type device has an open central region so that the radiation type device can be located generally coaxially with it. This arrangement minimises errors when the apparatus is moved relative to the object. <IMAGE>
Patent GB-2221518-A (GB)
Title: Engine transmission control system
Inventor: ALCOCK B J
IPC: B62D11/18
Filed: 1989-05-26
Abstract: An engine/transmission control system for a skid-steered vehicle, comprises     (a) an engine (2), (b) at least one continuously variable transmission (CVT) system (18, 28) connected to and for transmitting drive from the engine, (c) means (40) for sensing engine speed and for generating a first signal (VES) representative of engine speed (d) means (50) for sensing power demand placed on the engine and for generating a second signal (VPD) representative of power demand, (e) a CVT ratio controlling (38) for generating a third signal (VC), derived from the difference between the first and second signals, for controlling means for varying the transmission ratio of the CVT system (18, 28) between maximum and minimum values in such a manner that when CVT ratio is within a range between said values, the CVT ratio governs the torque reflected through the CVT system to the engine such that engine speed increases with increasing power demand but is controllably maintained within a narrow range of speeds at constant power demand, the CVT controlling means including a phase advance system and a phase retard system, which systems limit the rate of change of the CVT transmission rate to an extent dependent on the rate of change of engine speed, and (f) a steer system responsive to steer demand for generating differential speeds between left-hand side and right-hand side drive wheels (24, 34). The system is responsive to rapid change in power demand, and provides skid steering control under fluctuating power demand. The CVT system may be hydraulic, mechanical or electrical and the vehicle may have independent drive and steer CVT systems (Fig. 6).   <IMAGE>
Patent GB-2221108-A (GB)
Title: Analog to digital converter
Inventor: FUKUSHIMA NORIYUKI
IPC: H03M1/14
Filed: 1989-07-25
Abstract: An analog-to-digital converter has a plurality of resistors 2 connected in series for establishing respective reference voltages, an upper-order bit encoder 3 having a first input receiving the analog input voltage Vin and second inputs connected to the series circuit at respective intervals, for generating m upper-order bits and a switch control signal, a lower- order bit encoder 5 for generating n lower-order bits, and switches 4, 6 associated with the resistors 2 and responsive to the switch control signal for selectively connecting reference voltages to the lower-order bit encoder 5. The lower-order bit encoder 5 receives a page of reference voltages which covers more than one least significant bit of the upper-order bits, the upper-order bits being corrected at 7 by adding or subtracting 1 when necessary. <IMAGE>
Patent GB-2224462-A (GB)
Title: Sealing and cutting device
Inventor: DAWKIN LEONARD JOHN
IPC: B65B51/14
Filed: 1989-10-17
Abstract: A device for enrobing garments in a tubular plastic film includes sealing means for sealing the film and forming a cover 34 over the garment and shearing means 27 for cutting the cover free. The device is operated in two stages (sealing followed by shearing) by a single fluid actuator 18. The device includes a stand 10/11, a frame 16 pivoted to the stand and a knife carrier 22 pivoted to the frame 16 and restrained by spring 25. Actuation of actuator 18 (pneumatic ram) draws frame 16 towards the stand to cause sealing member 33 on the stand and sealing member on frame 16 to engage and seal the tubular film. Continued actuation causes carrier 22 to pivot against the bias of spring 25 to allow knife 27 to enter guide 31 to cut the film. <IMAGE>
Patent GB-2235306-A (GB)
Title: Camera having a motor for shutter charging and film winding
Inventor: KITAZAWA TOSHIYUKI
IPC: G03B17/00
Filed: 1990-08-24
Abstract: A motor-driven camera includes a sun gear 23a which is rotated in the forward and reverse directions in accordance with the rotation of a motor 15 in the forward and reverse directions, a charge gear which is in mesh with a gear train of a shutter charge system, a winding gear which is in mesh with a gear train of a film winding system, a first rotatable planet gear mechanism 25, 28 which is provided around the sun gear 23a to mesh with the winding gear 32a, 33 in accordance with the rotation of the sun gear in one direction, and a second rotatable planet gear mechanism 26, 30 which is provided around the sun gear 23a to mesh with the charge gear 35, 37a in accordance with the rotation of the sun gear in the other direction. <IMAGE>
Patent GB-2249410-A (GB)
Title: Velocity control system for film and video tape transport
Inventor: SWINSON PETER
IPC: G11B15/54
Filed: 1990-10-30
Abstract: A control device for a film or tape transport comprises a control knob (10) having a spindle (12) which forms the rotor of an electric motor (14). The control knob is spun by the operator to generate a drive signal to advance or retard the film or tape driven by the transport system at a speed dependent on the speed of rotation. The rotational speed is sensed and a signal dependent thereupon is produced by a speed detector (16) to control a servo-loop which drives the electric motor. The motor drives the control knob at substantially the same speed imparted by the operator without any further input by the operator. The control knob continues to be driven at this speed until the operator manually accelerates or decelerates the control knob. The speed detector (16) may detect the back emf generated in the motor or may (Fig 2 not shown) include a conventional shaft encoder. <IMAGE>
Patent GB-2243375-A (GB)
Title: Galvanneal heating of coated strips at edges
Inventor: ROSS NICHOLAS V
IPC: C23C2/06
Filed: 1991-03-28
Abstract: Apparatus for galvannealing steel strip comprises a bath (14) for applying a coating of zinc of controlled thickness onto a strip (12). An air knife (20) controls the thickness of the applied coating. A heating furnace (24) heats the steel strip to produce a galvannealed product. Edge heaters (34, 36) for heating the edges of the steel strip by magnetic induction promote uniform temperature distribution across the steel strip. The uniform temperature distribution produces more uniform galvannealing in the product. The edge heaters have preselected operating frequencies. A modulating circuit (28) imposes a frequency modulation on the operating frequencies of the edge heaters (34, 36) to avoid undesirable transverse flexural resonance in the galvannealed product. <IMAGE>
Patent GB-2253987-A (GB)
Title: Necktie with false knot.
Inventor: YEN CHEN-CHOU
IPC: A41D25/02
Filed: 1991-03-28
Abstract: A necktie has a standard shaped main body 1 which is threaded through a slotted adjustment plate 23. The latter is located inside a false knot 2 which comprises a hollow monobloc metal member. The necktie is fastened around the neck by means of a cord 3 whose length is adjusted by passage through a device 4. The cord passes through holes 43 in the box-like device 4 in which there is a spring member 44 which clamps against the cord to retain it in the selected position. The device 4 is also housed within the false knot 2. <IMAGE>
Patent GB-2246135-A (GB)
Title: Process for producing chlorinated polyolefin and process for producing chlorosulfonated polyolefin
Inventor: ISHIDA YOSHIAKI
IPC: C08F8/34
Filed: 1991-04-16
Abstract: A process for producing a chlorinated polyolefin comprises dissolving or suspending a polyolefin in a solvent and conducting the chlorination reaction, said solvent comprising a mixture of 100 parts by weight of chloroform containing no alcohol and from 0.0005 to 15 parts by weight of a compound having from 4 to 10 carbon atoms and containing one or more double bonds per molecule. A process for producing a chlorosulfonated polyolefin comprises dissolving or suspending a polyolefin in a solvent and conducting the chlorination and chlorosulfonation reaction, said solvent comprising a mixture of 100 parts by weight of chloroform containing no alcohol and from 0.0005 to 15 parts by weight of a compound having from 4 to 10 carbon atoms and containing one or more double bonds per molecule. Generation of phosgene is suppressed. Exemplified C4 to C10 compounds are; -2-methyl-2-butene, 3-methyl-1-butene, 2-pentene. The products do not discolour and are scorch-stable.
Patent GB-2245094-A (GB)
Title: Talking parrot toy
Inventor: LAMB RODNEY
IPC: A01K15/02
Filed: 1991-04-30
Abstract: A toy which produces recorded speech or sound for the entertainment of the animal, in the hope of ensuring a mental well-being of the animal, and encouraging mimicry in suitable animals. The embodiment incorporates audio triggering (which can be by the animal), and a metal mirror, and is designed to mount on a bird cage.