baber/WOPTO huggingface dataset:
Patent GB-2070120-A (GB)
Title: Collapsible builders' stage for use on steps
IPC: E04G1/36
Filed: 1980-02-22
Abstract: A collapsible scaffolding assembly comprises, in use, an inclined bottom framework (26) supported on a flight of stairs (12) by legs (20, 30). A horizontal framework (34) is pivoted (at 36) to the bottom framework (26) and is supported in fixed relation thereto by a third framework (41). The horizontal framework (34) constitutes or supports a man-supporting surface (14). Conveniently the third framework (41) is hingedly connected to the horizontal framework (34) and anchored by means of hook-form anchor means (23) to the bottom framework (26). It is preferred that the assembly can be folded substantially flat for ease of transport. <IMAGE>
Patent GB-2048148-A (GB)
Title: Apparatus for connecting together a plurality of webs of flexible material
IPC: B42F3/00
Filed: 1980-02-28
Abstract: An apparatus for connecting together a plurality of webs of flexible material comprises a base (1) having an anvil (2) with a sharp edged opening (3) therein. The opening (3) comprises a shank region (16) and an enlarged head region (17). A punching head (6) carries a punch (7) having a sharp edge and also comprising a shank region (20) and elongate head region (19) which are capable of fitting closely within the corresponding regions (16, 17) of the anvil opening. Either or both of the punch (7) and anvil opening (3) are devoid of a sharp edge adjacent that end of the respective shank region (20, 16). When two or more webs, (21, 22) are placed between the punch head (6) and the anvil (2), and the punch (7) is moved into the anvil opening (3), the sharp edges of the punch (7) and the opening (3) punch a portion of material having a shank and an enlarged head from each web (21, 22) and said portion remains joined at the base of said shank to the associated web. <IMAGE>
Patent GB-2045512-A (GB)
Title: Electric batteries for use with miners cap lamps
IPC: H01M50/40
Filed: 1980-03-05
Abstract: An electric battery for use with a miner's cap lamp has two or more cells sealed by a common inner lid 6. The battery further has an outer lid 8 extending over the entire area of the inner lid 6, and the two lids together define a space accommodating the terminal connectors 26 and a safety valve 36, 38 and 40 for each cell. <IMAGE>
Patent GB-2045206-A (GB)
Title: Manhole cover lifting device
IPC: B66F19/00
Filed: 1980-03-14
Abstract: A device for lifting and replacing manhole and inspection covers with at least four holes therein, comprising a T shaped support frame 40, 47 with wheels comprising a T shaped support frame 40, 47 with wheels 50, 51, 65, one of which may be connected to a handle 66 for steering the device, the frame carrying two spaced bars 21, 22 with adjustable members e.g. 25, 27, 29, 32 to engage in holes in the cover to be lifted, the bars having upstanding parts 38, 39 for engagement by respective jacks 56, 57 on the support frame 40, 47, the jacks being raised to lift the bars and the covers with them, the frame 40, 47 being movable on its wheels 50, 51, 65 to move the lifted cover away from the manhole or inspection hole. <IMAGE>
Patent GB-2068239-A (GB)
Title: Betting game
IPC: A63F3/00
Filed: 1980-05-09
Abstract: At least one cube (1, 2) has three faces (5 or 8) provided with identical identifying means (3a or 3d), two (6 or 9) provided with identical identifying means (3b or 3e) and the last (7 or 10) provided with identifying means (3c or 3f), the identifying means (3a to 3f) all being different. In addition some faces (5, 6 or 8, 9) have secondary identifying means (4). A playing surface is provided having areas corresponding to bets which can be placed on the throw of the cubes, together with chips, markers for indicating winning bets and a shaker. The identifying means may be colours, letters, numerals, projections, indentations, etc. <IMAGE>
Patent GB-2076387-A (GB)
Title: A method and apparatus for the treatment of sewage sludge
IPC: C02F11/04
Filed: 1980-05-27
Abstract: A method of treating sewage sludge in liquid or slurry form includes heating the sludge in a heating tank [22] by means of a gas burner [2] which is totally immersed in the sludge. A pump [40] pumps sludge in the tank [22] through pipes [20] into the combustion chamber of the burner at a high speed thereby heating and sterilising the sludge. The sludge is then transferred to a digester [24] by a pump [48] where it is subjected to an anaerobic fermentation. The combustible gas produced in the digester is withdrawn by a pump [30] through a gas line [28], mixed with air and fed to the burner to serve as the burner fuel.
Patent GB-2051846-A (GB)
Title: Primers for polymer-based sealants
IPC: C08L75/00
Filed: 1980-05-30
Abstract: The formation of a joint between a polymer-based sealant, such as one based on polyvinyl chloride, and the walls of a substrate, particularly a concrete substrate, in which the sealant is received, is enhanced by the use of a primer based on a vinyl chloride polymer and a polyisocyanate. The joint formed complies with BS 2499 as regards resistance to attack by fuels. The joints are of particular application in aircraft runways, highways, parking areas etc.
Patent GB-2078927-A (GB)
Title: Heat exchange system
IPC: F28F1/40
Filed: 1980-06-20
Abstract: A system having a tube-in-tube heat exchanger comprising three coaxial tubular members (20, 22, 24) fitted one within the other with manifolding at each longitudinal end of the exchanger for the circulation of fluid through the outside tubular member (20) in a counterflow direction to fluid passing through the inside tubular member (24) such that heat is exchanged therebetween. A fluid is provided in the intermediate tubular member (22) such that a leak in either the outer or inner tubular members can be detected. Each of the tubular members has integral radially inwardly projecting fins (100, 106, 112) in its bore, the fins (100) of the outer member being in good thermal contact with the intermediate member whose fins (106), in turn, are in good thermal contact with the inner member such that an effective heat flow path therebetween is provided. <IMAGE>
Patent GB-2059523-A (GB)
Title: A Locking Differential Gear for the Driving Axle of a Motor Vehicle
IPC: F16H48/30
Filed: 1980-09-26
Abstract: A friction clutch (2) is arranged between two half axle shafts (1, 3) of the driving axle, preferably between only one (3) of the half axle shafts and the differential carrier (4), so as to "cut-out" the differential, e.g. when one wheel is on ice. Means are provided for actuating the friction clutch (2) manually, e.g. via a sliding sleeve (23) and actuating fork (24), or in an alternative embodiment via a pivoting actuating fork. The fork (24) may be operated by a pneumatic cylinder 26 which may be controlled by a regulator valve as a function of vehicle speed or gear ratio. <IMAGE>
Patent GB-2087253-A (GB)
Title: Producing H2 and CO2 from partial oxidation gas
IPC: C01B32/50
Filed: 1980-11-15
Abstract: H2S, COS and CO2 are removed from shifted partial oxidation gas by (1) physical absorption in a first stage 106 to remove the H2S and some COS; (2) physical absorption in a second stage 107 to remove the CO2 and the balance of the COS together with some H2, CO and CH4; (3) desorption 129 of the second stage solvent to recover the CO2, COS, H2, CO and CH4; and (4) distillation 152 of the desorbed gases to recover the CO2 free from COS. The distillation may be arranged to give a product stream comprising CO2 together with H2, CO and CH4 or to give a product stream comprising CO2 substantially free of H2, CO and CH4. The first stage solvent may be expanded 114 to release H2 and CO2 for recycle 104 and then regenerated to remove H2S, COS and residual CO2 in column 125. <IMAGE>
Patent GB-2089029-A (GB)
Title: Method and Apparatus for the Remote Detection of Certain Minerals of Uranium, Zinc, Lead and Other Metals
IPC: G01N21/64
Filed: 1980-11-28
Abstract: Certain photoluminescent (fluorescent) minerals of uranium, lead, zinc, fluorine, tungsten, molybdenum, mercury and other elements which may naturally occur at the surface of the earth can be selectively detected in the presence of most other photoluminscent minerals and organic materials which are likely to occur at the earth's surface. The lifetimes of photoluminescent emission of materials in the latter class are much shorter than the lifetimes of photoluminescent emission of materials in the former class. In one method, using a pulsed laser or other short duration source of optical excitation, the photoluminescent response of the earth is integrated over a short period at a time sufficiently long after the stimulating pulse for the photoluminescence of other common and unwanted sources to have substantially decayed. In another method a source of light is modulated at a predetermined frequency and the phase lag of the photoluminescent response is measured or it is resolved into in phase and quadrature components the latter being measured. More than one modulating frequency may be used and measurement may be performed in a plurality of spectral ranges. The modulated source of light may be solar radiation after passage through a suitable modulator.
Patent GB-2065596-A (GB)
Title: Improvements in or relating to rigid inserts for silencers
IPC: B60K13/04
Filed: 1980-12-18
Abstract: A rigid insert for a silencer of a motor vehicle is made from chopped strand "E" glass fibres the major proportion of which are not less than 25 millimetres long, these fibres being formed into a mat having a density of not more than 280 kilogrammes per cubic metre and being not less than 2 millimetres thick. The mat is wound around a core and formed to a shape which will occupy the space between a perforated pipe and the wall of a silencer box, and at least parts of the wound mat are caused to adhere to each other to assist in maintaining the shape of the insert. In a preferred arrangement the mat is wound around the core to form a tube to receive the perforated pipe and then filler parts are offered to the outside of the tube and finally the mat is wound around the tube and the filler parts to form a shell which fits closely within the silencer box. <IMAGE>
Patent GB-2069079-A (GB)
Title: Improvements in hydraulic power boosters for vehicle braking systems
IPC: B60T13/14
Filed: 1980-12-22
Abstract: In an hydraulic power booster a boost piston (4), working in a bore (2) in a housing (1), is of stepped outline having at least three axially spaced portions (25, 27, 32) of at least two different diameters. The two end portions (25, 32) carry seals (34, 31) having slidable sealing engagements with complementary portions (15, 13) of the bore (2), and a stationary seal (33) is fixed in the housing (1). An intermediate portion (27) of the piston (4) disposed between the end portions (25, 32) and of smallest diameter has a slidable sealing engagement in the stationary seal (33). <IMAGE>
Patent GB-2088946-A (GB)
Title: Supplying Steam to I.C. Engine Charge Intakes
IPC: F02M25/022
Filed: 1981-03-20
Abstract: A body (3) adapted to be attached to the engine, has an intake passage (1), an exhaust passage (22) and a water and steam passage (5); the intake passage (1) directs the intake air or intake fuel-air mixture to the inlet ports of the engine through manifold outlets (12), the exhaust passage (22) directs the exhaust gas from manifold inlets (21) to an exhaust pipe, and the water and steam passage (5) directs steam to an opening (52) provided in the intake passage. Water flow from a tank to the water and steam passage (5) is controlled by a valve. The manifold outlets (12) may contain conical perforated mixing devices (13), Fig. 6 (not shown). <IMAGE>
Patent GB-2074160-A (GB)
Title: Preparation of complexes of polyols with inorganic salts for use as polyurethane curing agents
IPC: C08G18/10
Filed: 1981-04-15
Abstract: A method is described to produce new curing agents for polyurethanes. These are complexes of polyols with certain inorganic salts particularly halides of Group II elements. They are formed by heating suitable systems to temperatures generally above 150 DEG C. The polyols must also in their own right be suitable curing agents for polyurethane systems as the complex agents function by thermal decomposition to their constituents above 100 DEG C. In mixtures with isocyanate prepolymers they give polyurethanes with excellent properties after curing. Their very big advantage is very long pot lives after mixing, enabling processing to be carried out with very simple equipment instead of the very complicated mixing/dispensing units required for short pot life systems. Once decomposed their reactivity is as rapid as the polyol from which they were made.
Patent GB-2101732-A (GB)
Title: Gas turbine engine fuel injector
Inventor: CHING TO KWAN WILLIAM
IPC: F23D11/12
Filed: 1981-05-12
Abstract: A gas turbine engine fuel injector (32) has an air supply arranged to discourage the adherence of carbon particles. The air supply comprises a number of axial ducts (52) which take the air to a plenum chamber (50) and the air is discharged from the chamber (50) as a number of swirling flows of air through radial inclined slots or holes (58) (62) in an end cap (48). <IMAGE>
Patent GB-2100772-A (GB)
Title: Improvements in or relating to arcuate lining segments for shafts or tunnels
Inventor: SHIELDS LAURENCE ANTHONY
IPC: E21D11/08
Filed: 1981-06-22
Abstract: The disclosure relates to a shaft lining comprising precast concrete arcuate segments (11) having upper and lower circumferentially extending end faces (22, 23) between which two parallel through holes (24) extend at spaced locations opening into recesses (25) at the bottom face and containing bolts (26) supported in and extending up through the holes. Screw threaded sockets (31) are formed in the lower end faces of each segment off-set from the recesses to receive the bolts from the segment below to enable a ring of segments to be secured beneath a previously erected ring of segments in the shaft lining as the shaft is driven downwardly with the segments appropriately staggered around the lining with respect to the segments above. A tunnel lining similarly constructed is also disclosed. <IMAGE>
Patent GB-2110495-A (GB)
Title: Beam steering saw transducer
Inventor: STEWART WILLIAM JAMES
IPC: H03H9/145
Filed: 1981-09-09
Abstract: A beam steering surface acoustic wave transducer device comprises an elongate interdigital transducer having series-connected transducer sections 14-18 stepped with respect to one another in the direction of propagation P of a surface acoustic wave beam at centre frequency by an even number of wavelengths of the surface acoustic wave, the transducer sections being arranged for excitation in phase. <IMAGE>
Patent GB-2110918-A (GB)
Title: Boot heaters
Inventor: DAVID HECTOR WILLIAM ALEXANDER
IPC: A47L23/20
Filed: 1981-10-13
Abstract: Each of a pair of boot heaters comprises a shaped member adapted to conform to the general outline of the inside of a boot or shoe, and supporting a former 10 on which is wound an electrical heating element 12 connected in series with a thermostatically operated switch 22 which opens if the temperature of the heater exceeds a predetermined threshold. Electrical power to each heating element 12 is supplied from the electrical mains, either directly or through a step-down transformer. Electrical power may be supplied to the heating element 12 through a control circuit and timer. <IMAGE>
Patent GB-2101651-A (GB)
Title: A post socket
Inventor: STRINGER ROBERT WILLIAM
IPC: E04H12/22
Filed: 1981-11-20
Abstract: A post socket for driving into the ground and then receiving a post comprises a tubular steel box-section member 10, open at end 11 but with the side walls 10a, 10b... appropriately cut and deformed inwardly so as to define a tapered portion 13 terminating at a point 12. Fins 14a, 14b... may be welded to the outer surface of each tapered side wall. The member 10 is driven into the ground with point 12 leading, whereafter the walls defining the tapered portion 13 are forced outwardly for instance by means of a square fence post pressed into the member 10, such that the post socket is held secure in the ground (Figure 2). A special tool incorporating a slide hammer may be provided to assist driving of the socket into the ground. Moreover a special wedge may be provided for spreading the finned side walls of the socket, once hammered into the ground. <IMAGE>
Patent GB-2113296-A (GB)
Title: Control of mixture supply to groups of internal combustion engine cylinders
Inventor: LIEVESLEY JOHN BRIAN
IPC: F02D17/02
Filed: 1981-11-25
Abstract: The inlet tracts (6) of some cylinders (2 and 3) are interconnected by a balance tube (7) to equalize pressures in the inlet tracts and valves (5) in these tracts are prevented from fully closing. The valves (5) are arranged by a suitable linkage to be responsive to the inlet manifold vacuum or to the linkage operating the main throttle of the engine to control the supply of combustible mixture to the associated cylinders (2 and 3) at higher loads. The remaining cylinders (1 and 4) have no such control valves in the associated inlet tracts so that they are capable of normal operation under all conditions. <IMAGE>
Patent GB-2102422-A (GB)
Title: Imidazoline derivatives
Inventor: MYERS PETER LESLIE
IPC: C07D405/04
Filed: 1982-07-14
Abstract: Imidazoline derivatives of the formula   <IMAGE>  wherein      R<1> is hydrogen or alkyl C1-6;      R<2> is hydrogen, methyl, chloro, bromo or fluoro; R<3> is hydrogen, methyl, hydroxy, methoxy, fluoro, chloro or bromo; and their non-toxic salts exhibit presynaptic  alpha 2-adrenoreceptor antagonist activity.
Patent GB-2124447-A (GB)
Title: Ion burn protection in low-light television cameras
Inventor: MARCH ROY COLLINS
IPC: H04N5/238
Filed: 1982-07-17
Abstract: A common problem from which low light television cameras suffer is the tendency of the camera's intensifier section photocathode(s) to degrade because of ion burn. The matter is complicated by the difficulty of detecting from the system output when the illumination level has reached the point at which significant damage to the intensifier photocathode is likely to result. The present invention overcomes this problem by monitoring the return current to the EHT generator, which current is directly related to the intensifier section electron current, and if its value remains at or above a predetermined level for a first predetermined time then the camera's iris and/or filter system is activated to reduce the illumination of the photocathode (and optionally, if the current's value remains at or above the predetermined level for or beyond a second, greater, predetermined time then the camera's sun shutter is activated to block the illumination completely). <IMAGE>
Patent GB-2126516-A (GB)
Title: Process for making video discs
Inventor: GREGG DAVID PAUL
IPC: B29C37/00
Filed: 1982-07-29
Abstract: A process whereby the reflective coating of a video disc is applied to the disc directly in the press in which the disc is stamped by the use of fluid organometallic compounds.
Patent GB-2105019-A (GB)
Title: Method of operating blast-furnace plant
Inventor: HEGEMANN KARL-RUDOLF
IPC: C21B5/00
Filed: 1982-08-02
Abstract: A blast-furnace plant, comprises a counterpressure blast furnace (1), a throat-gas cleaning system (2), an optional energy recovery system (3) incorporating an expansion turbine (4), and a counter- pressure control system (5) comprising a pressure regulating valve (6) to regulate the throat-gas pressure in the throat (7) of the counter- pressure blast furnace (1) and a counter-pressure regulator having an actual pressure monitor (8), a controller (9) and setting means (10) for the pressure regulating valve. Disturbances which arise as a result of operational changes such as charging operations can affect the normal operating conditions over a limited period by altering the volume of throat gas produced. The counter-pressure regulator compensates for the changes in the volume of throat gas during disturbed periods, in conformity with the control signals. The flow rate of throat gas is held constant by compressing or expanding the throat gas in the counterpressure blast furnace. <IMAGE>
Patent GB-2104074-A (GB)
Title: Fluorinated diaminohexane derivatives
Inventor: GERHART FRITZ
IPC: C07D405/06
Filed: 1982-08-17
Abstract: Novel fluorinated alkylene diamine derivatives are inhibitors of ornithine decarboxylase enzyme and have the following general Formula I:- <IMAGE> wherein p represents 1 or 2.i
Patent GB-2130693-A (GB)
Title: Water heater
Inventor: SPILLARD MICHAEL J
IPC: F24H1/10
Filed: 1982-09-18
Abstract: A shower comprises a slug (24) located in the water passage and movable in response to the rate of flow of water through the passage, a wave emitter (25) and a wave detector (26) so arranged as to detect movement of the slug through the disturbance produced by the slug on the transmission of waves between the emitter and detector, and an electrical switch means responsive to the output of the wave detector and controlling the electrical supply to the heating element assembly. <IMAGE>
Patent GB-2107227-A (GB)
Title: Reciprocating mechanism for abrasive tool
Inventor: DANCSIK JOSEF JANOS
IPC: B23Q35/26
Filed: 1982-09-20
Abstract: A hand held reciprocating mechanism for driving an abrasive tool for finishing dies and the like comprises a housing (12) which supports a tool holder assembly (14) and a drive mechanism (16) including a crank pin (24) which reciprocates a connecting rod (28) which is operatively coupled to the tool holding assembly (14). The tool holding assembly (14) is supported for reciprocation by a support bushing (30) which is supported by the housing. An internal retaining ring (54) is employed to attach a tool support housing (38) to the tool support bushing (30) and allow rotation of the tool support housing (38) relative to the tool support bushing (30). The retaining ring (54) allows the use of an enlarged outer end (46) for the tool support housing with a slot formed therein to slidingly support a pair of opposed flats (98) formed on the tool holder assembly. This permits the tool holder assembly to support heavy transverse loads without excessive wear between the tool holder assembly and the tool support housing. <IMAGE>
Patent GB-2109798-A (GB)
Title: Heat activatable adhesive or sealant compositions
Inventor: SAIDAT BAHRAM
IPC: C09J7/10
Filed: 1982-10-29
Abstract: A heat activatable adhesive or sealant organic resin composition comprises     (1) a member of the group consisting of   (a) a liquid, ethylenically unsaturated monomer, oligomer or prepolymer of the formula:   <IMAGE>  wherein R is H or CH3, R1 is an organic moiety and n is at least 2,   (b) an epoxy resin containing at least 2   <IMAGE> groups, and   (c) a mixture of (a) and (b);     (2) a thermal initiator, and (3) a thermoplastic adhesive material selected from the group consisting of polyesters, polyvinyl acetals, polyamides, butadiene- acrylonitrile copolymers, styrene- butadiene copolymers, styrene- isoprene copolymers, styrene- ethylene-butylene copolymers, ethylene-vinyl acetate copolymers, ethylene-ethyl acrylate copolymers, ethylene propylene diene monomer and mixtures thereof.   The composition after application to the parts to be bonded or sealed forms a thermoset bond or seal on application of heat thereto, preferably by electromagnetic techniques including dielectric and induction heating.
Patent GB-2128880-A (GB)
Title: A calving aid
Inventor: GIBBINS JOHN RICHARD HUNTER
IPC: A61D1/08
Filed: 1982-10-30
Abstract: A calving aid is in the form of a strop 10 which passes around the body. At each end of the strop, there is a quick-release device for securing a calving rope. The strop may be provided with a belt 12, 14 to keep it in place on the body. <IMAGE>