baber/WOPTO huggingface dataset:
Patent GB-1303409-A (GB)
IPC: C08G73/08
Filed: 1971-10-25
Abstract: 1303409 Polyoxadiazoles INVENTA AG FUR FORSCHUNG UND PATENTVERWERTUNG 25 Oct 1971 [29 Oct 1970] 49469/71 Heading C3R Polyoxadiazoles are obtained by reacting aromatic dicarboxylic acids or their functional derivatives with inorganic salts of hydrazine, the reaction being carried out at a temperature above 50‹ C. in chlorosulphonic acid. In examples polyphenylene - 1,3,4 - oxadiazoles are prepared by reacting terephthalic acid with hydrazine sulphate, by reacting a mixture of terephthalic and isophthalic acids with dihydrazine sulphate, by reacting terephthalic acid chloride with hydrazine sulphate, by reacting disodium 5 - methyl - isophthalate with hydrazine sulphate, by reacting benzophenone - 4,4<SP>1</SP> - dicarboxylic acid dihydrazide with dihydrazine sulphate, by reacting a mixture of terephthalic acid and tetrachloroterephthalic acid dichloride with hydrazine sulphate and by reacting a mixture of terephthalic acid and diphenylsulphone-4,4<SP>1</SP>-dicarboxylic acid with hydrazine sulphate; all the reactions are carried out in chlorosulphonic acid, some of the reaction mixtures also containing sulphuric acid or p-toluene sulphonic acid. Uses.-Fibres and films.
Patent GB-2042701-A (GB)
Title: Electric Cigarette Lighter
IPC: F23Q7/00
Filed: 1980-01-10
Abstract: The electric cigarette lighter of patent specification no. 1564037 is modified in that the electrically conducting, fusible, annular body 40 is arranged externally in relation to the metal tubular body 10 so that spring 26 effects compression of the fusible annular body when it is softened through the heat produced by the lighter plug. <IMAGE>
Patent GB-2076632-A (GB)
Title: Fastening footwear heel top pieces
IPC: A43B21/42
Filed: 1980-03-29
Abstract: A fastener device comprises a stem portion (2) for insertion into a reinforcing member of a heel unit and a head portion (8) to be embedded in plastics material forming a heel top piece, said head portion comprising a substantially disc-like member with at least one portion raised out of the radial plane of the remainder disc so as to form a free-standing loop (12), there being provided a slit or other aperture (14) in the disc defining one edge of said loop (12) and through which, in use, plastics material may flow. A method of forming the head portion (2) into the loops (12) is also disclosed involving a die having ridges upon which the loops are formed by use of a punch. <IMAGE>
Patent GB-2074662-A (GB)
Title: Rotary Impeller for a Centrifugal Pump
IPC: F04D29/22
Filed: 1980-04-23
Abstract: The impeller 11 is particularly adapted to enable it to pump mixed flows of gas and liquid such as fuel in an aircraft fuel tank. The impeller comprises a rotor having a plurality of flow passages 20 extending from an inlet eye 21 to the rotor periphery. Each flow passage 20 comprises an inlet duct 22 of substantially constant or convergent cross-section and initially extending at an angle which may be between 40 and 75 DEG  to the tangent to the inlet eye. The inlet duct opens into an exit duct 23 which diverges such that at their outlets, the passages occupy most of the peripheral circumference of the rotor. The right hand portion of the Figure shows modifications of the inlet duct. <IMAGE>
Patent GB-2054801-A (GB)
Title: Air valves for pneumatic tyres
IPC: F16K15/20
Filed: 1980-04-30
Abstract: An air valve for a pneumatic tyre inner tube has a plastics valve body on the tube with an internal air pathway, and outer screw threads carrying a nut 2. A plastics valve unit 3 is screwed onto the body and has an air inlet 5 opening into a valve chamber containing a valve member 10, having a projection 11 extending into the air inlet. A spring 12 bears against the valve member 10, and is held in place by a valve guiding tube 7 threaded into the valve unit 3 and associated with packing 13, 13' respectively sealing it with respect to the rest of the valve unit 3 and the body 1. The valve guiding tube 7 has a square section air pathway 9. <IMAGE>
Patent GB-2056066-A (GB)
Title: Glue-coating apparatus
IPC: B05C1/08
Filed: 1980-08-07
Abstract: In glue-coating apparatus for coating book block backs, the level of glue in tank (1) is controlled by means of sensing the pressure in the base of the tank. The base of the tank (1) is provided with apertures (5) and a diaphragm (7) is disposed to cover the apertures (5), the diaphragm being held between two spacer rings (6) mounted to the tank underside. Two stabilizing plates (8) are non- detachably connected to the diaphragm element and to each other and are so centrally arranged that a resilient region of constant radial width surrounds the plates (8). For defining the diaphragm movement, one of the plates (8) is pivotally connected to one of the rings (6). The diaphragm (7) is operatively connected by a resiliently mounted plunger (11) to a switch (13), which actuates a feed device (12) for feeding glue to the tank (1). <IMAGE>
Patent GB-2055988-A (GB)
Title: Pressure unit
IPC: B60T17/02
Filed: 1980-08-11
Abstract: A pressure unit for operating the brakes of a tractor-trailer, has a compressor (11) and a storage reservoir (19) with a service outlet. The unit includes releasable hitch means to allow the unit to be mounted removably on the three- point linkage of a tractor. The compressor may be driven by the power-take-off shaft of a tractor, by a hydraulic motor or by an electric motor. When coupled to the power- take-off shaft the hitch means comprises a hitch connection for releasable engagement with the top linkage of the three-point linkage and when the compressor is driven by a hydraulic or electric motor the hitch means comprises three hitch points to allow the unit to be mounted on all three of the linkages. <IMAGE>
Patent GB-2061632-A (GB)
Title: Electrical connector of the press-holding type
IPC: H05K3/36
Filed: 1980-09-29
Abstract: A connector of the press-holding type for use sandwiched between, and electrically-connecting, two circuit boards. The connector comprises a plurality of linear conductive bodies, which are made of a conductive rubber with a metal, e.g. silver, powder dispersed in a rubbery matrix, and which are embedded in an insulating base body of a rubbery elastomer having two oppositely facing flat contacting surfaces, the ends of each of the linear conductive bodies reaching the flat surfaces of the base body. At least one of the flat surfaces of the base body is provided with a multiplicity of microconcavities eg by foaming for reducing moisture induced oxidation and migration of the silver.
Patent GB-2095367-A (GB)
Title: Piston/cylinder devices
IPC: F16J1/10
Filed: 1981-03-18
Abstract: A piston and cylinder device which requires a reduced quantity of working fluid comprises a piston rod (12) having one region 14, of larger cross-sectional area than a second region 13. A second piston rod (18) may be detachably securable to the piston (11). The second piston rod (18) is automatically released from the piston (11) when the piston (11) is moved to one end of the cylinder (10) by a releasing device (28) provided at that end wall of cylinder (10). <IMAGE>
Patent GB-2078933-A (GB)
Title: Solid fuel fired heaters
IPC: F23L1/00
Filed: 1981-05-18
Abstract: A solid fuel fired heater includes a combustion chamber 11, means for admitting primary combustion air into an upper region of the combustion chamber, a flue 14, and one or more exhaust gas ducts 15 each having an opening to a lower region of the combustion chamber 11 and discharging to the flue 14. The or each exhaust gas duct 15 is defined by one or more unitary constructions of refractory material having a back wall, and a pair of side walls supporting a front wall towards the combustion chamber with its base in upwardly staggered relationship to the base of the back wall to define the mouth of the exhaust gas duct. Manifold means are provided in the front wall 15A to direct secondary combustion air through a first set of ports 15C to the firebed and through a second set of ports 15D into the exhaust gas duct. <IMAGE>
Patent GB-2077207-A (GB)
Title: Stabiliser for Inflatable Marine Craft
IPC: B63C9/02
Filed: 1981-05-29
Abstract: An inflatable marine craft, such as a liferaft (11), is provided with a stabilising means which comprises one or more duct means (16). A surface of the duct means is so inclined to the bottom (12) of the craft that the cross-section of the duct means decreases toward the periphery of the liferaft, whereby water flowing through the duct means exerts on the surface a downward stabilising force. <IMAGE>
Patent GB-2102009-A (GB)
Title: Coating compositions containing catalyst
Inventor: THOMAS STEPHEN JOHN
IPC: C09D163/00
Filed: 1981-07-09
Abstract: Coating compositions comprise film forming components (a) consisting essentially of (i) a polyepoxide having a 1,2-epoxy functionality greater than 1.0 and a molecular weight below about 6000 and (ii) an amine-containing vinyl addition interpolymer wherein the weight ratio of (i) to (ii) is from 1:19 to 19:1, (b) as catalyst a soluble salt of a Group II A metal in amount of 0.1 parts to 5 parts per 100 parts of the film- forming components, and (c) organic solvent.
Patent GB-2081655-A (GB)
Title: A control system of a pneumatically suspended, raisable and lowerable, trailing vehicle axle
IPC: B60G17/052
Filed: 1981-07-22
Abstract: A control system of a pneumatically suspended raisable and lowerable trailing axle (not shown) of a commercial vehicle with a steel-sprung driving axle 3 comprises a pressure-limiting valve 23, a control valves, a one-way restrictor 7 and a pressure-regulating valve 5 associated with the driving axle and a control valve 15 and a levelling valve 10 associated with the trailing axle. In this system, a pressure maintained constant by the pressure-limiting valve 23 is applied to the pressure-regulating valve 5, which determines a pressure proportional to movement of the driving axle 3 and which, after a pre-determined pressure level corresponding to an axle loading of approximately 95% of the safe driving-axle loading has been exceeded, causes a control valve 8 to be reversed, whereby a valve 12 vents trailing axle actuator 18 and air pressure is transmitted to the levelling valve 10 and, depending on the loading, pressure air is directed through the latter valve to the pneumatic suspension means 1, 2 until a predetermined distance, dependent on the loading, is established between the vehicle frame and the trailing axle. <IMAGE>
Patent GB-2080589-A (GB)
Title: Mechanical calculator
IPC: G06G1/08
Filed: 1981-07-27
Abstract: A mechanical calculator suitable for use in setting the angle of a tool axis in a universal head milling machine includes two scale bearing components (3,4) coupled for relative rotation about a spigot (8). One (3) of the components bears a part-circular logarithmic 'Sin' scale (6), the other (4) bears a spiral logarithmic 'tan' scale (7). A transparent cursor disc (5) having a radial cursor line (5a) is also mounted for rotation about spigot (8) to allow radial alignment of the two scales. The described embodiment enables the value of  alpha  to be determined given values of  phi  and  psi  in the formula   <IMAGE>
Patent GB-2083758-A (GB)
Title: Isolating sub-cellular components
IPC: B01D37/04
Filed: 1981-09-15
Abstract: A method of and apparatus for isolating biological sub-cellular components such as bacterial cell walls for use in the production of vaccines, the components being held in suspension or solution in a container (11) from which it passes into a spiral channel (14) one wall of which is formed by a membrane (24) which is substantially impermeable to the required component or components, the filtrate being collected at outlet (23). The stream is continuously circulated by pump (26) through channel (14) via ducts (13, 17 and 20). Circulation subjects the stream to a shearing action thus to inhibit accumulation of components at or near to the upstream surface of the membrane (24). A plurality of microporous tubes may replace the spiral channel. <IMAGE>
Patent GB-2089222-A (GB)
Title: Exercise machine
IPC: A63B21/018
Filed: 1981-11-27
Abstract: The machine comprises a body (3) provided with a first handle (4) and first and second, relatively movable, friction members (6,7) between which members passes an elongate element, e.g. a non-resilient belt (2). One of said friction members (6) is movable, relative to said body, and has a second handle (5) attached thereto which is spaced from said first handle (4) such that said first and second handles (4,5) can be gripped simultaneously by a user and a pressure can be applied to urge the friction member (6) towards the other member to exert a frictional resistance to movement of the belt (2) between the friction members (6,7). The belt (2) has one end provided with anchoring means and the other end may be attached to a belt take-up device (10). <IMAGE>
Patent GB-2110289-A (GB)
Title: Fastening for shower heads
Inventor: DALTON MARTIN WALTER
IPC: B05B1/18
Filed: 1981-11-27
Abstract: The invention is concerned with releasably assembling component parts of a device such as the spray unit of a shower head. A first component part (40) is formed with a cylindrical member (44) having three equispaced and radially extending lugs (45) and is adapted to engage within an annular portion (34) of a second component part (30). The annular portion (34) of component (30) includes three equispaced cam surfaces (36) formed in the inner walls thereof for co-operation with the said lugs (45), the cam surfaces having recesses (37) adapted to receive the lugs (45) of the first component (40), whereby insertion of the cylindrical portion (44) of the first component (40) into the annular portion (30) of the second component (30) and rotation thereof causes the lugs (45) to co-operate with the cam surfaces (36) and snap into the recesses (37) thereby locking the components together. At least one of the component parts should be formed from a resilient plastics material. <IMAGE>
Patent GB-2093899-A (GB)
Title: Double glazing
IPC: E06B3/66
Filed: 1982-02-03
Abstract: Double glazing sheeting suitable for a greenhouse includes two glass panes (1, 2) secured together along opposite peripheral margins (3, 4, 5, 6); at least one of the panes (1, 2) having a bend extending along or parallel to its edge to define an air space between the panes (1, 2). The bend is defined between two adjacent portions of the same pane having a maximum inclination relative to each other of up tp approximately 30 DEG . A shaped pane can be made by applying shaping tools to a glass ribbon having a viscosity of 10<7.4> to 10<9.6> poises to produce an off-set in the ribbon which is then cut and secured adhesively to a similar pane or to a flat pane. <IMAGE>
Patent GB-2093936-A (GB)
Title: Disc brake
IPC: F16D65/00
Filed: 1982-02-18
Abstract: A brake disc (1) for a disc brake is composed integrally of a friction ring (2) and a bell-shaped disc portion (3). To reduce deformation, as for instance warping of the disc surface or torsion of the friction ring (2) and the bell- shaped disc portion (3), the coupling of the friction ring (2) to the bell- shaped disc portion (3) is designed elastically within limits, so that the deformation and tension caused thereby will be removed at this point and the danger of cracking and possible destruction of the brake disc (1) resulting therefrom will be reduced. The bell-shaped disc portion (3) includes for this purpose axial slots (10) which form webs (12) whose cross-section decreases towards the friction ring (2). <IMAGE>
Patent GB-2099333-A (GB)
Title: Nozzle for use in flash evaporation
IPC: B05B1/02
Filed: 1982-05-28
Abstract: A nozzle 14 designed to circumvent choking and unsteady motion of pressurized fluid into a flashing chamber comprises a thin-walled body 15 provided with sharp-edged orifices in a hemispherical end portion 16 protruding into the flashing chamber and having a mounting flange 17 at the opposite end. It is particularly useful for the concentration of sulphuric acid. It may be made of tantalum, zirconium, nickel- based alloy, stainless steel or glass. <IMAGE>
Patent GB-2106467-A (GB)
Title: Device for cleaning and transporting bulbous, root and tuberous crops.
Inventor: DE JONGE JOHANNES
IPC: B07B1/14
Filed: 1982-08-23
Abstract: A device for cleaning and transporting bulbous, root and tuberous crops comprising a driven roller track, in which the spaces between the successive rollers are adjustable and the rollers are resiliently mounted to deflect temporarily if an object falls between them. The rollers are carried by frame members 10-14 which can be adjusted by means of a lazy-tongs 8, 9 to vary the spacing of the rollers, the members 10-14 being connected to the tongs 8, 9 by way of springs to permit the rollers to deflect. <IMAGE>
Patent GB-2118355-A (GB)
Title: Electric cable
Inventor: BRINSLEY PETER ALFRED
IPC: H01B11/10
Filed: 1983-03-18
Abstract: An electric cable comprises at least one elongate insulated electric conductor and an outer electric screening layer comprising at least one expanded sheet of metal or metal alloy of high electrical conductivity, which sheet at least partially surrounds the conductor or assembly of conductors. Preferably, the screening layer is formed by applying longitudinally to and transversely folding around the conductor or assembly of conductors an expanded tape of copper, aluminium or alloys thereof. The longitudinal edge of the folded tape is bent over to prevent damage to the conductor insulation. Alternatively the screening layer may be applied helically. The layer may be spaced from the conductor by insulating discs or a helically wound insulator. A continuous layer of insulating material may be used.
Patent GB-2143635-A (GB)
Title: Chart reader
Inventor: BARRON CHRISTOPHER JOHN
IPC: G07C5/00
Filed: 1983-07-13
Abstract: A chart reader comprises a reading station having sensing means (20,23,24) for sensing features of the chart (11) to be read, movement means (13,19) for moving the chart (11) past the reading station so as to enable it to be read by the sensing means (20,23,24), signal producing means (23) for producing a signal from the sensed information, converting means (25,26) for connecting the signal produced into digital form and processing means for processing the digital signal to provide an analysis of the information sensed from the chart (11). The reader may include a slit through which the chart (11) is illuminated by a light source (20), and through which it is viewed by a lens system (24) imaging the slit on a photosensor (23) e.g. a CCD array. <IMAGE>
Patent GB-2126871-A (GB)
Title: Shoe heel protector
Inventor: CHANDLER EDWIN GORDON
IPC: A43B23/30
Filed: 1983-09-02
Abstract: A protector for the heel of a shoe to avoid damage when driving a vehicle has a base 10 with an upstanding wall 11 extending partly therearound and an integral band 12. The heel 13 of a shoe 14 lies on the base 10 with the wall 11 passing around the back of the heel and the band 12 passing around the front to secure same. The protector may be an integral moulding of rubber. <IMAGE>
Patent GB-2126276-A (GB)
Title: Cable clamp
Inventor: REED GORDON HOWARD
IPC: F16L3/12
Filed: 1983-09-06
Abstract: A cable clamp comprising a first limb 2 intended to support the clamp on a surface and connected thereto a second limb 3. The limbs having facing surfaces between which a cable may be clamped, and means for securing the clamp to a surface. The two limbs are further hinged together at one end 4 so as to be pivotable between an open position and a closed position in which the free ends of the limbs are brought into engagement to clamp a cable therebetween. The means by which the clamp is secured to the surface comprises screw threaded fastening means 9, intended to be engaged through an aperture in the said surface and in the free end of said first limb and to screw into the free end of the second limb to bring the limbs into engagement. The first limb comprises a formation 11 on the surface thereof facing the surface to which the clamp is to be secured, removed from the said fastening means and intended to engage with a complementary formation in the said surface to prevent the clamp pivoting thereabout. <IMAGE>
Patent GB-2135972-A (GB)
Title: Palletized packing cases
Inventor: KELSO CLIFFORD WHITE
IPC: B65D19/20
Filed: 1983-10-26
Abstract: A fibre-board packing case, which is made from a blank of fibre-board and has sides 1 and 2 and the usual four bottom closure flaps hinged to and extending from each of the sides, is provided with two additional bottom flaps 11 and 12. Each of these flaps has two portions 13, 14 and 19, 20, the portions 13 and 19 being fixed to the conventional bottom flaps of the packing case. Portions 14 and 20 are each provided with three rectangular fibre-board tubes 16, 22, which are axially aligned with each other when the flaps are closed to allow elongated blocks of rigid foamed polystyrene to be inserted through the tubes 16 and 22. This holds the bottom flaps closed and the tubes form a pallet which is an integral part of the packing case. <IMAGE>
Patent GB-2130457-A (GB)
Title: Method and apparatus for signal transmission
Inventor: RYDBORN STEN AKE OLAUS
IPC: H04J7/00
Filed: 1983-11-14
Abstract: The invention relates to a method and an apparatus for the simultaneous and mutually independent transmission ot two unmodulated signals (A, B) on a single conductor (1), in which an operational amplifier (4) is feedback-coupled so that the voltage on a signal transmission conductor (1) connected to the feedback coupling circuit reflects a signal voltage (B) impressed on the operational amplifier (4) and maintains this signal voltage (B) constant and independent of possible current variations, whereby a current signal (A) is transmitted from the opposite side of the signal transmission conductor (1), so that the voltage signal (B) may be sensed on the opposite side of the signal transmission conductor (1), and the current signal (A) may be sensed on that side where the voltage signal (B) was impressed. <IMAGE>
Patent GB-2134887-A (GB)
Title: Handles for portable cases
Inventor: FAIRHEAD MICHAEL
IPC: A45C13/26
Filed: 1984-01-25
Abstract: A handle for a carrying case, especially a case for scientific equipment or the like, comprises two parts (18, 20) of similar generally U- shaped form, each hingeable to a respective portion (base or lid) of the case. When the case is closed, the two handle parts can be brought together, in interlocking relationship at complementary mating surfaces (30, 32) by means of a projection (36) and a recess (34) in a manner which forms on the undersurface of the handle a continuous semi-cylindrical hand pressure surface devoid of any gap which could give rise to risk of pinching. <IMAGE>
Patent GB-2153327-A (GB)
Title: Method of packaging a mattress and a packed mattress
Inventor: MAGNI GIULIANO
IPC: B65D85/07
Filed: 1984-01-28
Abstract: The packaging method includes the steps of inserting a single mattress into a flexible wrapper, compressing by squeezing with compressing means to reduce the thickness of the mattress and drive out the air, welding the wrapper to seal it, and then rolling up the wrapped compressed mattress and securing it in the rolled up state, e.g. by adhesive tape, prior to placing it in an outer container or case. <IMAGE>
Patent GB-2156934-A (GB)
Title: Screw fasteners
Inventor: PEARCE JOHN EDWARD
IPC: F16B35/04
Filed: 1984-02-25
Abstract: A screw fastener comprising a member having a part spherical dome-shaped portion 10 and a tool engageable polygonal portion 11 connected to the dome shaped portion by a breakable connection portion (12) of reduced thickness, the dome-shaped portion having an internally threaded bore 13. The portion 11 is detached by turning it relative to the dome-shaped portion after tightening. The dome-shaped portion cannot be conveniently gripped by a tool for subsequent removal. Flat-sided portion 17 prevents rotation of the fastener. <IMAGE>