baber/WOPTO huggingface dataset:
Patent GB-2040329-A (GB)
Title: Air regulating diaphragm
IPC: D04H1/48
Filed: 1980-01-18
Abstract: An air regulating diaphragm for fluidised beds and like applications comprises a non-woven needlefelt textile substrate impregnated with a thermosetting resin. The diaphragm is stronger (weight for weight) than prior art woven diaphragms so that the area weight of the diaphragm can be half of that for a corresponding woven diaphragm. The diaphragm has also a more regular pore size than a woven diaphragm. A polyester or aramid belt may be impregnated with a melamine formaldehyde or phenol formaldehyde resin.
Patent GB-2068167-A (GB)
Title: Column line powered static ram cell
IPC: H01L23/522
Filed: 1980-01-22
Abstract: In a static RAM comprising cross coupled FETs Q1, Q2 one of the power supply lines is eliminated by connecting the load elements R1, R2 to the data lines. Both load elements may be connected to the same data line D as shown or alternatively to data line D or each resistor may be separately connected to one or other of the data lines D, D. The load elements have a high value which together with the capacitance at the data nodes 1 and 2 provides a long time constant and when writing into a cell the appropriate data line is pushed for period shorter than the time constant of the load circuits so that cells connected to the same data line are not affected unless the row address line RA is energised. <IMAGE>
Patent GB-2046395-A (GB)
Title: Clutch release mechanisms
IPC: F16C27/04
Filed: 1980-02-06
Abstract: As is known a clutch release mechanism (M) employs a bearing assembly with a rotatable race (10) serving to actuate a clutch and a stationary race (12) supported by a hub or thrust sleeve (17) to which external force (F) is applied. The bearing assembly is permitted to move bodily radially to achieve self-alignment with the clutch. In accordance with the invention, a chamber (24) is provided radially adjacent the stationary race (12) and contains a filler medium displaced by the radial adjustment of the bearing assembly. <IMAGE>
Patent GB-2047037-A (GB)
Title: Focus detecting system
IPC: G02B7/38
Filed: 1980-02-13
Abstract: A contrast function  SIGMA  ¦xi - xi+1¦ of a scene to be photographed is evaluated both in front of, and behind, the effective plane of the film by using two arrays 3,5 of detectors, and the lens system is adjusted to minimise the difference in the two contrast values. Additional pairs of detector arrays at greater distances than the pair 3,5, can be used to effect coarse focussing. <IMAGE>
Patent GB-2070386-A (GB)
Title: Loudspeaker systems
IPC: H04R3/14
Filed: 1980-02-16
Abstract: In a loudspeaker system using passive or active cross-over networks, as desired, the drive units (24, 26) are readily disconnected (e.g. by plug and socket connectors, switches, flying leads) from the passive network (16) and are connected to separate power amplifiers of the active network. <IMAGE>
Patent GB-2077129-A (GB)
Title: Tube pressure filter
IPC: B01D29/11
Filed: 1980-05-09
Abstract: A tube pressure filter is provided with at least one connection (14) for the supply of purging liquid or gas under pressure, through passageways (15, 17) to the inner compartment of the pressure filter, the liquid or gas being forced between an annular sealing member (9) and an adjacent surface of the inflatable membrane (4). <IMAGE>
Patent GB-2075958-A (GB)
Title: Improvements in rear mounted feeder boxes and the like for attachment to agricultural vehicles
IPC: A01D90/10
Filed: 1980-05-15
Abstract: A rear-mounted feeder box 10 for attachment to an agricultural vehicle, e.g., tractor mounted or trailed by a tow bar, has its top closed by a transverse reversible conveyor 32 capable of discharging the contents of the box over either side wall 18 at will. The floor 42 of the box can be raised and lowered by lifting mechanism, e.g. scissors linkage 48 driven by a ram or rams 56, at a rate - at least during raising - which is variable to control the rate of discharge of material by the conveyor. The backwall of the box, e.g. constituted by an array of pick-up tines (28) is hinged at its bottom edge so that it can be swung between an upright box-closing position and a generally horizontal open rearward position in which it receives material to be loaded. Loading is performed by swinging the backwall up into the closed position. All mechanisms for operating the various moving parts can be powered by the mechanical, electrical or hydraulic power take-off system on the tractor on which the feeder box is to be mounted or by which it is to be trailed. <IMAGE>
Patent GB-2054252-A (GB)
Title: A secondary zinc electrode
IPC: H01M4/62
Filed: 1980-06-12
Abstract: A pressed, secondary zinc electrode has dispersed therein particulate carbon in an amount between 1 and 50% by weight of the total weight of zinc and carbon and an organic binder in an amount between 0.5 and 10% by weight of the total weight of zinc and carbon.
Patent GB-2055645-A (GB)
Title: Die casting machines
IPC: B22D17/10
Filed: 1979-02-14
Abstract: A die casting machine comprising a sprue (31) for injecting molten metal into a die cavity for casting a product, a pressure channel (17) communicating with the die cavity (30) at the position different from the sprue (31), and a plunger (36) slidably disposed within the pressure channel (17), said plunger being designed to initiate the application of pressure to the molten metal filled within the pressure channel (17) before the molten metal in the sprue (31) is solidified to clog the sprue (31) to thus compress the molten metal in the cavity (30). In order to always fabricate a product without void, the sliding stroke of the plunger is set longer than half the length L of the pressure channel (17). In addition, the relationship between the sectional area S of the pressure channel (17) and the length L of the pressure channel (17) is determined as represented by the following formula S = 0.35L<2>. Thus, the molten metal injected from the sprue (31) and filled into the cavity (30) is compressed from the side of the pressure channel (17). This die casting machine is adaptable to produce parts required for air tightness, durable for high pressure or required for precision machinery such as compressors or pump housings or the like. <IMAGE>
Patent GB-2052154-A (GB)
Title: Improved field-effect transistors and methods of constructing such transistors
IPC: H01L29/786
Filed: 1980-06-26
Abstract: A method of making an insulated gate field-effect transistor is described in which first (12) and second (22) insulating layers are formed in semiconductor crystalline material (11) by ion implantation, the ions being such as to disrupt the crystal structure to form an amorphous insulating material or to form an insulating compound with the semiconductor material, and, if necessary, annealing, further crystalline material being grown, if necessary, after the first layer has been implanted. Source (18) and drain (19) regions are defined in the material between the first and second insulating layers, the second layer (22) providing the gate insulation, a portion of the semiconductor material (20) being doped to form the gate electrode, and metallisation (27) to form contacts for the gate and the source and drain regions is deposited. Field-effect transistors made by the method are described and circuits containing such transistors can be separated by etching down to the first layer or by regions of amorphous material. <IMAGE>
Patent GB-2061642-A (GB)
Title: Back-up power supply
IPC: H02J9/06
Filed: 1980-10-09
Abstract: The invention relates to a back- up power supply for use in association with a primary supply and a rechargeable battery, 26. The back- up supply includes a current control device, 32, which serves to regulate the magnitude and direction of battery current in response to a first control signal, across its current transfer terminals. When the first control signal has a polarity indicating that the primary supply is operating, the current control device charges the battery from the primary supply. When the first control signal has the opposite polarity, indicating that the primary supply is not operating, the current control device permits the battery to discharge freely through the load otherwise powered by the primary supply. The current control device is also responsive to a second control signal, one of the load and battery voltages, to detect when the battery has discharged beyond a predetermined level and to prevent the battery from then discharging any further through the load. <IMAGE>
Patent GB-2069346-A (GB)
Title: War board game
IPC: A63F3/00
Filed: 1981-01-13
Abstract: A series of pieces (P11, P12, P13 etc.), in different formations, are moved over a grid, as shown, overlying a map. <IMAGE>
Patent GB-2072505-A (GB)
Title: Wood preservative concentrate and an agent prepared therefrom for preserving wood and timber
IPC: B27K3/50
Filed: 1981-02-05
Abstract: A water-diluted wood preservative concentrate which does not require a substantial amount of petroleum-derived solvent comprises, by weight, from 5 to 43 parts of at least one organic, water-insoluble insecticide and/or at least one organic fungicide, which may be water-soluble or water-insoluble, from 5 to 35 parts of at least one water- dilutable synthetic resin, from 35 to 5 parts of at least one plasticiser or water-insoluble organic solvent containing hydroxyl and/or ether groups, from 36 to 10 parts of at least one non-ionic emulsifier, from 0 to 6 parts of a buffer compound or pH regulator, and from 0 to 15 parts of water. The concentrate can be diluted with water in the proportions 10 to 30% of anhydrous concentrate to 90 to 70% water for use in preserving wood or timber. A process for making the concentrate is described by treating at least the insecticide and/or fungicide, plasticiser and/or solvent and emulsifier at a temperature of 10 to 80 DEG C., and under a pressure of 0.5332 to 1.1332 bars until a solution is formed. The remaining components may be added before or after such treatment.
Patent GB-2070619-A (GB)
Title: Derivatives of aldohexoses intermediates processes for their manufacture preparations containing such compounds and their use
IPC: C07K14/535
Filed: 1981-02-12
Abstract: Described are derivatives of pyranoses of the formula I, manufacturing processes and intermediates, and their use as medicaments.    <IMAGE>  (I)  The pyranose moiety in the compounds of the formula I is derived especially from D-glucose, but alternatively from D-galactose or D-mannose. Characteristic of the compounds of the formula I is the lower alkyl or phenyl-lower alkyl radical R8, which carries an oxycarbonyl, mercaptocarbonyl or aminocarbonyl group, which is bonded to an aliphatic, cycloaliphaticaliphatic, cycloaliphatic or aromatic hydrocarbon radical R0, each of which is optionally substituted and which may be interrupted by oxycarbonyl, mercaptocarbonyl and/or iminocarbonyl and which, like the remaining radicals of the formula I, is defined in patent claim 1.
Patent GB-2067565-A (GB)
Title: Thio, sulphinyl and sulphonyl containing hydroxyamines and derivatives thereof
IPC: C07C317/48
Filed: 1979-06-15
Abstract: Compositions for reducing or eliminating the greasy appearance of the hair and skin are disclosed which contain, as active ingredient, a novel compound of the general formula:   <IMAGE> in which: n is 0, 1 or 2, R2 represents OH either a hydrogen atom or a radical which is: -CH2-CH2OH,   <IMAGE> R3 represents either a hydrogen atom or a radical which is: -CH3 or -CH2OH, and R1 represents a radical which is:     i) -CH3,   ii) -CH2-CH = CH2,   iii) -CH2-CH2OH,   iv> <IMAGE> m being 1 or 2 and R4 representing a hydrogen atom or the radical -COR5, R5 being a saturated or unsaturated C1-8 aliphatic radical carbon atoms,   v) -CH2-COR6, R6 representing a radical -OH or   <IMAGE> r' and r'', which are identical or different, representing a hydrogen atom or a C1-5 alkyl radical, or r' and r'' together forming a divalent radical of the formula:- (CH2)2-O-(CH2)2- or of the formula: -(CH2)5- <IMAGE> R7 representing either the radical -NH2 or radical -COOH.
Patent GB-2074948-A (GB)
Title: Keyboard
IPC: B41J29/16
Filed: 1981-03-26
Abstract: An instrument such as a data printer (1) has a keyboard (3) supported on a keyboard housing (2). Attached to the latter is a case (5) for pencils or the like which is provided with a hinged lid (6) whose upper surface forms a rest for the thumb- balls of the operator. <IMAGE>
Patent GB-2073856-A (GB)
Title: Hydraulic Control Valve Mechanism
IPC: F15B13/06
Filed: 1981-03-31
Abstract: A hydraulic valve e.g. for controlling hydraulic devices used in surgical operation tables comprises a valve body 21 containing a valve chamber 22 divided into two by an intermediate member e.g. a piston 25. Located one on each side of the member 25 are a plurality of pairs of control outlets containing check valves 30 biassed to a closed position and each pair corresponding to a hydraulic device to be controlled. A pair of inlet valves 33 and of relief outlet valves 34 lead into the valve chamber respectively on opposite sides of the intermediate member 25 and are biassed closed. On each side of the member 25 is a selector plunger 29 and these are movable to angular settings to register with check valves which they open when displaced by the pressure of liquid entering the valve chamber 22 through one of the inlet valves 33. Means open the inlet valve 33 to enable liquid under pressure to enter the valve chamber and the plunger on the opposite side of the intermediate member 25 is displaced to open the selected check valve and permit liquid to flow from a hydraulic device to be operated into valve chamber 22 to open a check valve and on the other side of member 25 to allow liquid to flow to the hydraulic device. <IMAGE>
Patent GB-2077903-A (GB)
Title: Producing a gas-air mixture
IPC: F23N1/02
Filed: 1981-06-02
Abstract: This invention provides a method of and a gas furnace 1 for producing a gas-air mixture, wherein the combustion air is preheated by means of the hot exhaust gases of the furnace in a heat exchanger 9. The preheated combustion air and the fuel gas are fed to a mixer 20 in which a gas-air mixture is produced which is then supplied to the gas burners 2-5 of the furnace 1. The ratio of gas to fuel in the mixture is continuously adjusted in response to a thermostat 39 sensing the temperature of the combustion air. The thermostat being connected to a shut off valve 35 for the fuel supply and a throttle valve 40 for the exhaust gases. <IMAGE>
Patent GB-2079794-A (GB)
Title: Yarn false twisting apparatus having adjustable friction discs
IPC: D02G1/08
Filed: 1981-06-15
Abstract: A yarn false twisting apparatus is disclosed which comprises a pair of co-operating friction discs (1,2) which define a twisting zone between opposed friction surfaces thereof. One of the discs (2) is composed of a thin flexible material, and a pressure applying member (10) is mounted adjacent the back side of the flexible disc (2) for basing the disc toward the other disc (1) locally at the twisting zone to firmly engage the yarn (14) passing therethrough. The discs are laterally movable with respect to each other, and the pressure applying member is movable in a direction perpendicular to the movement of the discs, such that the ratio of twist insertion to yarn speed may be varied. In one illustrated embodiment, the discs and pressure applying member are interconnected for effecting synchronized relative movement, and these components are mounted on a support bracket (73) which is pivotal through 180 degrees thereby to permit selective operation in a first position wherein S twist is imparted to the yarn and a second position wherein Z twist is imparted. <IMAGE>
Patent GB-2085310-A (GB)
Title: Process and apparatus for recovery of solvents
IPC: B01D53/00
Filed: 1981-10-13
Abstract: A process for the recovery of solvents is disclosed. A carrier gas stream 14 laden with solvent vapours in an evaporation space 12 is compressed by a compressor 24, cooled, e.g. by heat exchanger 26, and expanded by turbine 30 with the production of work to condense solvent vapours and separate the solvent. The carrier gas stream low in solvent vapours is returned into the evaporation space 18 after being reheated e.g. by the exchanger 26. The work arising on expansion is used in mechanical coupling with the compressor 24 for compressing the carrier gas stream laden with solvent vapours. The work produced on expansion is used in mechanical coupling with the compressor 24 for compressing the carrier gas stream laden with solvent vapours. <IMAGE>
Patent GB-2088696-A (GB)
Title: Crash Helmet
IPC: A42B3/10
Filed: 1981-11-18
Abstract: A crash helmet comprises at the front portion thereof encom- passing the chin and jaws, an inner soft material band or pad 2 effective to fit to the front portion and cover the intermediate raised portion of the crash helmet, the band being provided, at the centre portion thereof, with through holes 4 and, at the top thereof, with projecting fins 3 being suitably downwardly slanted in such a way as to provide breath baffle members. <IMAGE>
Patent GB-2111476-A (GB)
Title: Substituted carboxy- fluoresceins and their use in fluorescence polarization immunoassay
Inventor: WANG CHAO-HUEI JEFFREY
IPC: C07D213/38
Filed: 1982-02-11
Abstract: Novel compounds of the formula: <IMAGE> wherein R is a ligand-analog having a single reactive primary or secondary amino group which is attached to a carbonyl carbon atom of a carboxy- fluorescein moiety and having a molecular weight within the range 100 to 2000; wherein said ligand- analog has at least one common epitope with a ligand so as to be specifically recognisable by a common antibody, are useful as tracer compounds in a fluorescence polarization immunoassay procedure. <IMAGE>
Patent GB-2118430-A (GB)
Title: Trays
Inventor: HARVEY PETER
IPC: A47G19/02
Filed: 1982-03-02
Abstract: A hand-held tray is provided having a first circular recess 2 for food, a second, smaller circular recess 3 for a drinking vessel, and an elongate thumb hole 4 by means of which the tray may be held. The thumb hole is directed to the centre of the first recess and has contoured ends to receive a user's thumb. The second recess is suitably positioned adjacent the thumb hole such that the angle between them relative to the centre of the first recess is less than 45 DEG  eg 30 DEG . <IMAGE>
Patent GB-2097416-A (GB)
Title: Heat-insulating sleeves for conducting tubes or pipes
IPC: C08K13/02
Filed: 1982-04-27
Abstract: A heat-insulating sleeve for a conducting tube or pipe, e.g. a flexible metal tube in the form of a hose preferably having inwardly-projecting ribs running in the longitudinal direction of the hose and of tapering cross-section, the hose being made of a mixture comprising 35 to 60% by weight of polyvinyl chloride, 10 to 45% by weight of pure white, very finely particulate filler in the form of crystalline calcium carbonate and/or calcium magnesium carbonate, 20 to 30% by weight of at least one long- chain branched phthalic acid ester as plasticiser, 1 to 3% by weight of a lead-containing stabiliser, 0.25 to 0.6% by weight of a stearic acid-based lubricant, and optionally 0.2 to 0.3% by weight of titanium dioxide and traces of colouring matter. The particular materials used are cheaper and have other advantages over those previously used to produce heat- insulating sleeves.
Patent GB-2099276-A (GB)
Title: Method of and apparatus for coating articles of confectionery with particulate material
IPC: A23G3/20
Filed: 1982-05-13
Abstract: A method of coating articles of confectionery with a strewable, powdery, granulate-like or lumpy material, for example sugar crystals, confectionery crumbs, nuts, raisins, linseed fragments or mixtures thereof, comprises the steps of initially forming an adhesive surface on each article (1) of confectionery by heating or by, application of a binding agent. A moving bed is formed from the strewable material (3) on grid conveyor (2) and metal plate (8) and the adhesive articles of confectionery are placed on the bed. The articles are then coated from above via outlet (26) and optionally also from the side, with further strewable material. Any such material which has not adhered to the surface of the articles (1) is subsequently removed through the conveyor before drying or cooling of the articles and is returned for use in the formation of the bed via metal plate (11), grid conveyor 14 and metal plate (15). Adjustment of metal slides (9, 12) controls thickness of bed. Surplus material exits via outlet (22) and is fed to outlet (26). <IMAGE>
Patent GB-2121626-A (GB)
Title: Combination weighing machine
Inventor: KAWANISHI SHOZO
IPC: G01G19/393
Filed: 1982-06-01
Abstract: A combination weighing machine, which is generally used for packing a plurality of articles in each bag or the like so that the total weight of the each bag becomes nearly equal to a predetermined target weight, includes a plurality of weighing balances such as 18 for weighing the articles each at the same time, arithmetic means for selecting some of these balances so that the total weight of the articles thereon satisfies a predetermined condition and means for unloading the selected balances to collect the articles thereon and then loading them with new articles, respectively, to initiate the next cycle of operation. Each balance is accompanied with one or more temporary holding hoppers 28 and corresponding memories, and means for distributing the articles on the balance to these hoppers and, at the same time, weight information thereof to the corresponding memories, in order to subject the articles in the hoppers to selection by the arithmetic means together with the articles on the balance, thereby improving weighing efficiency and accuracy without increasing the number of expensive weighing balances. <IMAGE>
Patent GB-2123172-A (GB)
Title: A robot control system
Inventor: LEMAY CHRISTOPHER ARCHIBALD GO
IPC: B25J9/18
Filed: 1982-07-06
Abstract: A robot control system, by means of which a robot can be programmed, by demonstration, to repeat a job sequence, consists of a camera 1, which senses a sequence of patterns, during the demonstration, which are labelled and stored in a job sequence store 5 and a disc store 6. A scoring unit 4 compares subsequent in-coming images, sensed through the camera 1, with stored and labelled images to identify a particular required object, and generates error signals, which are passed to mechanical servos provided on an arm 2 of the robot to cause movement thereof in accordance with the stored job sequence. There can be two arms and two cameras. <IMAGE>
Patent GB-2123663-A (GB)
Title: Seed packaging
Inventor: BROCKLEHURST JOHN ROBERT
IPC: A01C1/04
Filed: 1982-07-13
Abstract: Seeds are supported in a spaced array on a strip or sheet of a support material. Typically the seeds are packaged in capsules defined by first and second water soluble or biodegradable polymer strips. Advantageously the capsules also contain fertilisers, fungicides, etc. An apparatus for manufacturing the package is also described.
Patent GB-2124131-A (GB)
Title: Pressing plastics film sample
Inventor: HIRVENSALO KARI MATTI TAPANI
IPC: G01N1/06
Filed: 1982-09-07
Abstract: A press for pressing thin films of thermoplastic sample materials. The press has two mould plates (4, 5) between which the sample material is placed and which are pressed against each other by means of clamping means (6, 7, 8). The press is positioned in a heating means (19) for heating it to a temperature at which the sample material melts. The high precision of the film thickness required, for example, for an infrared analysis is ensured in the press by providing one of the mould plates (5) with a peripheral groove for receiving excess sample material owing to which no high precision is required in the dosage of the sample material.