baber/WOPTO huggingface dataset:
Patent GB-2067006-A (GB)
Title: Method of and apparatus for generating a laser pulse
IPC: H01S3/091
Filed: 1980-01-03
Abstract: There is disclosed a method of generating a laser pulse, and a laser oscillator utilising the method, which involves the use of selected parameter values in a known laser of the kind in which a laser material 1 optically pumped by a light source 4 is disposed between two resonator reflectors 2, 3 one of which 3 is partially transmissive. In contrast with such known lasers, the dimensions of the laser material and the resonator, and the properties of the reflectors and the length and output of the light pulse, are so selected in the present arrangement that the so-called relaxation oscillation, generally regarded as disadvantageous in known laser techniques, can be utilised so as to make the first relaxation pulse discharge the main portion of the energy accumulated in the laser material as a short laser pulse. <IMAGE>
Patent GB-2039547-A (GB)
Title: An improved yarn feed controlling device
IPC: D03D47/34
Filed: 1980-01-09
Abstract: A ribbon loom yarn feed and tension device has a resiliently mounted arm 20 with guide eye 22 movable from a first position in which yarn is continuously fed by a constantly rotating roller 14 to a second position in which the yarn is loose on the roller 14 and is held by a clamp 18, 32. A number of such devices may be used in weft patterning. <IMAGE>
Patent GB-2042904-A (GB)
Title: Badminton or Squash Trainer Device
IPC: A63B69/00
Filed: 1980-01-15
Abstract: The trainer comprises an upright 1 having an adjustably positionable horizontal arm (7) which supports a suspension element comprising an upper ring (15) mounted on a slot (12) of the arm, a heavy sleeve (17) crimped to the ring and a length (18) of flexible rubber secured to a shuttlecock (14) (or squash ball) and crimped in the sleeve (17). <IMAGE>
Patent GB-2040552-A (GB)
Title: Semiconductor Laser
IPC: H01S5/183
Filed: 1980-02-08
Abstract: In a semiconductor laser having a heterojunction layer structure and a p-n junction (10), the substrate (2) comprises a cavity (6) from which laser radiation (7) emanates normal to the surface. The active volume (4A) of the laser is determined by the p-n junction, and the bottom of the cavity is formed by an optically flat interface (12) between the substrate (2) and a passive layer (3). The interface (12) is exposed by etching. The reflectors of the resonator are formed by the interface (12) and the interface between the layer (5) and the layer (13). The laser can be readily coupled to an optical fibre. <IMAGE>
Patent GB-2048279-A (GB)
Title: Fire-proofing Material for Thermoplastic and Thermosetting Synthetic Materials and Technical Textiles or Papers
IPC: C09K21/12
Filed: 1980-04-11
Abstract: A thermoplastic or thermosetting plastics material a laminate or shaped or moulded member containing such a material, a textile or a paper, in which there is used as fire-proofing agent a mixture comprising:     a) about 36 parts by weight of pentabromodiphenylether b) about 40 parts by weight of an alkylaryl phosphate having the formula:   <IMAGE>  wherein x=1 or 2      n=2 to 12      R=an aryl residue c) about 24 parts by weight of tetrabromobisphenol A or hexabromocyclododecane.
Patent GB-2048330-A (GB)
Title: Method of preparing a fibre- reinforced cementitious plate
IPC: B28B1/52
Filed: 1980-04-25
Abstract: Method of preparing a fibre- reinforced plate comprising a cementitious matrix having uniformly distributed therein synthetic mineral fibres, natural organic fibres or mixtures thereof, fibres and a fine material having an average particle size lower than that of the cement particles, removing excess water therefrom to form a moist sheet, combining several moist sheets to form a multilayered product and allowing said product to harden to form a plate. The presence of fine particles in the slurry prevents fine cement particles from being removed together with excess water and a plate product having improved strength is obtained.
Patent GB-2061399-A (GB)
Title: A composite pump impeller
IPC: F04D7/04
Filed: 1980-06-27
Abstract: A highly wear-resistant composite impeller for use in centrifugal slurry pumps has a base 4 and a cover plate 6 formed of a material, such as steel, which can be worked with relative ease, and an insert sandwiched between the base and cover plate formed of a high temperature and wear-resistant refractory material. The insert has a plurality of impeller drive vanes 16 and may be constructed from a plurality of interlocking segments 10. In use slurry is received and driven by the segments 10 and has little, if any, contact with the base and cover plate. <IMAGE>
Patent GB-2079594-A (GB)
Title: Sink outlet receptacle
IPC: E03C1/244
Filed: 1980-07-23
Abstract: An outlet receptacle, provided for incorporation on a sink of the kind having an opening 4 in its wall for overflow purposes, has a body 8 which defines, of itself or in conjunction with the apertured wall of the sink 2, an open-topped receptacle the interior of which communicates with the overflow opening 4 of the sink. Means are provided within the receptacle to serve as a strainer for liquid passing from the receptacle to the overflow opening. The receptacle body may be secured to the sink wall by adhesive, or by means of an apertured extension or back wall through which securing means, such as a tubular nut, may be passed to tighten the receptacle onto the sink wall. Alternatively, the receptacle body may be formed integrally with the sink wall. The strainer may be integral, or removable. <IMAGE>
Patent GB-2064078-A (GB)
Title: Water boiler
IPC: F24H9/20
Filed: 1980-10-20
Abstract: The invention provides an electrically heated water boiler for making tea or coffee or for other culinary uses. The boiler includes a main chamber 10 containing electric heating elements 26, 28 for heating the water, and a boiling water reservoir 30 which fills up with boiling water as the main bulk of the water in the chamber 10 is heated. Water may be drawn off from the reservoir via a spout 40, 42. The heating operation is controlled by sensing the level of boiling water in the boiling water reservoir 30 by means of probes 46, 48, 50 so that the heating element 26 is switched on when the level falls below a predetermined value, and is switched off when the level is above a predetermined value. The reservoir has an inverted frusto-conical base 32 with a spout extending upwards and through which boiling water spills. A recirculating pipe 25 passes through the spout with clearance, the top thereof is slightly above the top of the spout so that excess boiling water returns to the main chamber through the said recirculating pipe 25. <IMAGE>
Patent GB-2058041-A (GB)
Title: Composition for torch gunite of converter linings
IPC: C04B35/22
Filed: 1980-02-27
Abstract: A composition for torch gunite of the converter linings consisting of lime, coke and, as fusible addition, the blast-furnace slag comprising calcium oxide, manganese oxide, magnesium oxide, iron, aluminium, silicon oxides and sulphur, or a staurolite composition comprising oxides of magnesium, calcium, potassium, sodium, titanium, zirconium and aluminium, iron and silicon oxides with the following component ration by weight: coke: 20 to 30 per cent; fusible addition: 5 to 10 per cent; lime: balance.
Patent GB-2065803-A (GB)
Title: Adjuster Strut for Vehicle Drum Brake
IPC: F16D65/56
Filed: 1980-12-10
Abstract: An adjuster strut for a vehicle drum brake comprises a non-rotatable flat bar (1) abutting one of the brake shoes (14), an abutment member (13) which abuts the other shoe (14) and on which a ratchet wheel (11) is rotatably mounted for rotation by a pawl (15) in response to excess shoe wear to increase the strut length, and a screw-threaded connection between bar (1) and ratchet wheel (11). By virtue of bar (1), the strut clears hub (16). As shown, arms (2, 3) on bar (1) engage grooves (7, 8) in a barrel (6), which barrel is threaded internally and receives a threaded rod (10) integral with the ratchet wheel (11). In a modification (Figure 3) the barrel is integral with the bar and rod is in screw-threaded engagement with ratchet wheel. Further modification of the screw- threaded connection are disclosed.   <IMAGE>
Patent GB-2071008-A (GB)
Title: Moulded components with electrical inserts
IPC: H01R43/00
Filed: 1981-03-09
Abstract: The process permits the obtaining by moulding of wire connections coupled to a component 1 e.g. a faceplate closing a relay housing and providing output wiper contacts 6,8,11,13 disposed in line. Before moulding, the connections 5,7 and 10,12 interconnected by couplings 14 and 15 between their output wiper contacts 6,8, and 11,13 are placed within a mould and the component 1 moulded thereto. After moulding, the connections are electrically separated by cutting the wire along plane P and removing the couplings 14 and 15. <IMAGE>
Patent GB-2094844-A (GB)
Title: Method of making absorbable surgical sutures
IPC: D06M11/64
Filed: 1981-03-13
Abstract: A method of making absorbable surgical sutures comprising treating cellulose threads with a nitrogen oxide in an organic solvent medium at a temperature of -11 to +21 DEG C for 10 to 30 minutes, withdrawing the cellulose threads from the organic solvent and holding them at a temperature of +30 to +70 DEG C and under an excess pressure for 15 minutes to 1.5 hours.
Patent GB-2077161-A (GB)
Title: Stirring molten metal in a casting mould
IPC: B22D27/02
Filed: 1981-06-01
Abstract: A magnetic field which moves linearly and penetrates down into molten metal in the mould (14) is produced by a series of electrical conductors (18, 19) positioned above the mould and arranged in parallel groups, each of these conductors being energised by a different phase of a multiphase alternating current supply e.g. a 3-phase supply at 50-60 Hz. Ferromagnetic pole pieces may be associated with the conductors to provide a low reluctance flux path, which will reduce leakage of the magnetic field above the conductors and concentrate the field below the conductors where it penetrates down into the mould. The stirring of the metal may be effected in an ingot mould or, as particularly described, in a continuous casing mould. <IMAGE>
Patent GB-2080722-A (GB)
Title: Battery container mould
IPC: B29C45/26
Filed: 1981-07-06
Abstract: A mould is described for injection moulding battery containers which include a plurality of thin resilient ribs integral with and projecting at acute angles from the inside walls thereof into the cell compartment(s) to hold the electrochemical components of the battery therein. The core of the mould includes a compartment-shaping mandrel 24 which in turn includes ejector bars 30 reciprocally slideable within complementary-shaped mortises 26 in the mandrel. Rib-forming cavities are formed between the side walls 88 of the ejector bars and the corresponding mortise walls 90. Lips 33 at the distal ends 31 of the ejector bars project towards the mortise walls 90 to produce undercuts at the bases of the moulded ribs which in turn result in the formation of ribs which are detached from the bottom of the moulded container. <IMAGE>
Patent GB-2104631-A (GB)
Title: A domestic indirect hot water storage cylinder
Inventor: MOORE ALFRED EDWARD
IPC: F24D3/08
Filed: 1981-08-26
Abstract: A domestic indirect hot water storage cylinder (2) comprising a chamber (4) for containing water to be heated, and a jacket (6) positioned around the chamber and for containing water which is at a higher temperature than the water in a chamber during operation of the cylinder, the cylinder being constructed such that the chamber and the jacket are each formed in one piece, and the cylinder being such that the water in the chamber is heated by heat transfer by heat from the water in the jacket. <IMAGE>
Patent GB-2083966-A (GB)
Title: Frequency-modulation radar
IPC: G01S7/40
Filed: 1981-09-16
Abstract: In an FMCW radar ranging system, the modulation being of ramp form so that the return signal should exhibit a constant frequency difference dependent on the range delay, lack of linearity of the transmitted signal ramp causes false difference frequencies to arise which reduce ranging certainty. This is overcome by obtaining a target difference frequency signal as before and deriving a reference difference signal by feeding a portion of the transmitted signal into a fixed delay 13 and mixing 14 as for a target. The reference difference signal also, therefore, suffers from ramp non-linearities. A sampling signal of correspondingly irregular repetition rate is picked off 15 this reference difference signal and used to sample the target difference signal. The samples are therefore non-linearly distributed in time in a way which offsets the non-linearity of the transmitted frequency ramp. By treating the samples as though they were equally spaced in time, conventional narrowband frequency analysis can be used to derive the target ranges. <IMAGE>
Patent GB-2087307-A (GB)
Title: A product with a decorative surface layer and a process for the production of the product
IPC: B44C3/02
Filed: 1981-10-23
Abstract: A product, for example in the form of a facing element for a door, a skirting board, a shadow rail, a window-frame, a door, a flower-pot or a waste-paper basket, which product is provided with a decorative surface layer on at least one face thereof, wherein the product comprises a carrier of thermoplastic material, to which carrier a decorative surface layer of wood, veneer, metal or a layer comprising thermoset plastics material is firmly attached by a hot melting elastomer.
Patent GB-2088107-A (GB)
Title: Arrangement for detecting the breaking of window glass
IPC: G08B13/04
Filed: 1981-10-28
Abstract: Detector 10 in the form of a piezoelectric element or accelerometer is disposed on a window pane or its frame and provides a signal, on physically sensing breakage of the pane, to AND gate 12. Microphone 13 faces the pane and provides a signal on audibly detecting breakage of the pane, to the AND gate 12, which provides an alarm output only when both signals are received substantially simultaneously, thereby avoiding spurious alarms. <IMAGE>
Patent GB-2095027-A (GB)
Title: Manufacturing cathode electrode structures for Na-S cells
IPC: H01M4/70
Filed: 1982-03-15
Abstract: A cathode structure for a sodium sulphur cell is formed of a stack of elements 12 of carbon fibre material or predominantly of carbon fibre material, each element being punched out of a sheet 10 of the material having fibres randomly oriented in planes parallel to the plane of the sheet. For a cylindrical cell, the elements 12 are of annular form with a central aperture 13. <IMAGE>
Patent GB-2095583-A (GB)
Title: Spray nozzle
IPC: B05B15/06
Filed: 1982-03-24
Abstract: A spray nozzle, comprises a housing 2 formed on or secured to a structure in communication with a fluid passageway, a spray jet 6 removably mounted in a bore in the housing and removable means externally of the jet and the housing adapted to embrace a formation 9 on the spray jet and a corresponding formation 5 on the housing to hold the jet against axial movement with respect to the housing. The flanges 5, 9 are embraced by a channel-section C-shaped or U- shaped spring clip 10, and an end cap 5 is secured to the housing 2 by engaging O-ring 17. <IMAGE>
Patent GB-2099607-A (GB)
Title: Heating apparatus control system
IPC: G05D23/19
Filed: 1982-04-30
Abstract: Operation of a gas fire is controlled by digitally encoded signals of infra-red radiation which represent a selected mode of operation (e.g. a desired heat output rate or a fire temperature) and are generated, remotely from the fire, by actuation of a hand-held control device (20). The signals are received by an infra-red sensor and preamplifier unit (21) and then decoded at a receiver (24), the resulting analogue signals being utilized to initiate an appropriate control adjustment of the fire to attain the desired mode of operation. Additionally the fire has manual controls (22) to achieve the modes of operation. Ultrasonic or radio frequency radiation can also be used. <IMAGE>
Patent GB-2099427-A (GB)
Title: Preparation of acetic acid
IPC: B01J31/34
Filed: 1982-05-28
Abstract: A process enabling the rapid production of acetic acid in high yield comprises heating methyl formate in the presence of carbon monoxide by the use of a molybdenum- nickel or tungsten-nickel co- catalyst in the presence of a promoter comprising an organo-phosphorus compound or an organo-nitrogen compound wherein the phosphorus and nitrogen are trivalent, and in the presence of a halide.
Patent GB-2122635-A (GB)
Title: Retorting process and apparatus
Inventor: BARNEY JOHN H
IPC: C10B49/16
Filed: 1982-06-28
Abstract: In a process for retorting carbonaceous material, such as oil shale, by contact with hotter recycled heat-carrying bodies, such as ceramic balls, the critical weight ratio of the hotter recycled heat-carrying bodies to the carbonaceous material below which chipping and cracking of the hot recycled heat carrying bodies readily occurs is experimentally determined as a function of the temperature difference between the heat carrying bodies and the carbonaceous material and the weight ratio of the recycled heat-carrying bodies to the carbonaceous material is maintained during the process at a weight ratio which is slightly greater than the critical weight ratio corresponding to the temperature difference sensed during the process. <IMAGE>
Patent GB-2103463-A (GB)
Title: Dibber drill
Inventor: BUFTON LESLEY PHILIP
IPC: A01C7/04
Filed: 1982-08-11
Abstract: A dibber drill 6 comprises a seed wheel 28 from which seeds 27 are taken by the negative pressure dibbers 10 of a contra-rotating placement wheel 8. When the dibbers 10 reach their lowermost (planting) position, an associated cam-operated plunger 14 presses the seed to a predetermined depth into the consolidated soil at the bottom of the hole formed by dibber 10. At the same time, a quantity of water is injected in the hole via a hollow section of plunger 14, this supply being maintained while the plunger is in contact with the soil thereby to prevent or free blockage of the plunger aperture by the soil. <IMAGE>
Patent GB-2103919-A (GB)
Title: Method of infusing fruit
Inventor: KAHN MARVIN L
IPC: A23L17/50
Filed: 1982-08-12
Abstract: A method of infusing fruits with sugar solids comprises immersing the fruit in two or more sugar containing baths, the sugar comprising 35%-100% fructose, so that the solids content of the fruit is increased in a step-wise and gradual manner to the level of 32 to 55 percent by weight, and the infused fruit has a volume which is at least 62% of its volume prior to infusion.
Patent GB-2114905-A (GB)
Title: Mixing water and fuel oil in proportions
Inventor: KELSALL-SPURR JOHN KENNETH FRA
IPC: B01F3/08
Filed: 1982-09-23
Abstract: Apparatus for adding water or other aqueous liquid to fuel oil supplied to oil burners utilises a positive displacement pump (46) driven by an electric motor to give an output proportional to motor speed. The motor speed is set by a variable frequency static inverter (41) itself controlled to range proportionately with fuel oil flow via regulator means (12) in maintaining a desired ratio of water-to-fuel oil with variations on flow rate of the latter. The control linkage is preferably mechanical, typically relatively movable inner-and- outer cable type (42). Water etc. supply is via a ball-cock (50) controlled cistern (48) and all components other than the fuel oil valve (12) and control linkage (42) are housed in one casing. <IMAGE>
Patent GB-2112629-A (GB)
Title: A shaped disposable insert and holder thereof
Inventor: WALLESTEN HANS IVAR
IPC: A47G/
Filed: 1981-11-24
Abstract: A shaped disposable insert and holder thereof, the insert being adapted in said holder having bottom and side wall portions to define a receiving space for said insert. The insert is characterized in: a thin-walled bottom portion (9) and a sidewall (8) joined thereto, said sidewall having a thin walled lower portion and a relatively stiff upper portion; a relatively stiff upper collar (11) joined to and extending downwardly from an upper edge (10) of said sidewall; and means for locating said insert (7) in said holder (2) comprising at least one projection (13) extending annularly around one of said stiff upper portion and said downwardly extending collar and spaced from the insert upper edge, said projection engaging the sidewall portion (3) of said holder near an upper edge (14) of said holder to position said insert in said holder. The holder is characterized in a bottom portion (4) and a sidewall (3) to define a receiving space for an insert, the holder sidewall having an inside surface and an outside surface; and a recess (15) extending annularly around an upper portion of the holder sidewall on one of said inside surface and said outside surface and adpated to receive a projection on an insert collar to locate the insert in the holder.
Patent GB-2130714-A (GB)
Title: Heat pump
Inventor: PEELING KIM ANTHONY
IPC: F25B29/00
Filed: 1982-11-20
Abstract: A heat pump comprises a compressor 1, an evaporator 3 adapted to condense moisture from incoming air, a first condenser 2 to reheat the air to a temperature equal to or greater than the dry bulb temperature of the incoming air, and a second condenser 7 to transfer latent heat of condensation to a domestic water supply. <IMAGE>
Patent GB-2113838-A (GB)
Title: Image analysis
Inventor: MORGAN ANTONY JOHN
IPC: G01B11/03
Filed: 1983-01-20
Abstract: The present invention relates to image analysis and in particular to a method of detecting the presence and location of a pattern within a picture and to a digitiser. The method comprises digitising the whole of the picture, processing the digital values so as to discard values which correspond to a predetermined background threshold value, sequentially comparing the remaining values with a model of the pattern and applying a weighting so as to enable values inconsistent with the pattern within the picture to be discarded. Preferably, the weighting is based upon slope averaging or the use of a Kalman filter. The digitiser comprises components for implementing the steps of the described method. <IMAGE>
Patent GB-2136714-A (GB)
Title: Apparatus for holding workpieces in particular gear wheels for honing the central axial bore
Inventor: BENDER ALBERT
IPC: B23Q16/04
Filed: 1983-03-01
Abstract: An apparatus for holding workpieces, in particular gear wheels (3) for honing a central axial bore (6), comprises a workpiece holder (1) mounted to float and able to be loaded and unloaded from one side (5). In order to achieve high machining accuracy, the gear wheel (3) must transmit the torque during machining reliably to the workpiece holder (1), without tilting or changing its position with regard to the honing tool (2). For this purpose, there are provided levers (13, 14) with tooth-shaped ends (15,16) pivotally mounted on the workpiece holder (1). The ends (15, 16) of the levers, which are approximately diametrically opposed to each other, engage in tooth gaps in the workpiece (3). In the position of engagement in the machining direction of rotation (arrow 19), the levers (13, 14) bear against stops (17, 18), whereas in the opposite direction, they are able to swing at least into a position of non-engagement with the workpiece 3. <IMAGE>