baber/WOPTO huggingface dataset:
Patent GB-2061934-A (GB)
Title: Mercaptoacyldihydropyrazole carboxylic acid derivatives
IPC: C07D231/06
Filed: 1980-10-22
Abstract: Novel compounds having the general formula (I):   <IMAGE>  wherein R1 is hydrogen, alkyl, aryl, arylalkyl or   <IMAGE> wherein R6 is alkyl or aryl; R2 is hydrogen, alkyl or haloalkyl; R3 is hydrogen, alkyl, furanyl, thienyl, pyridyl or any of the above-mentioned heterocyclic groups substituted with one or two halogen or alkyl groups; R4 is hydrogen, alkyl or arylalkyl; R5 is hydrogen or alkyl; and n is 0, 1 or 2; and basic salts thereof, have hypotensive activity.
Patent GB-2064487-A (GB)
Title: Improved load handling apparatus
IPC: B61B1/00
Filed: 1980-11-26
Abstract: A load handling apparatus includes a vehicle (1), a pair of mounting frames (2A, 2B) each hingedly mounting a pedestal (3A, 3B) for movement from an inoperative position, in which the pedestals are folded down horizontally about hinges (4A, 4B) so as to lie lengthwise of the vehicle, to an operative upright position. Each pedestal mounts a respective transverse foldable track (9A', 9B') which in use extends horizontally and on which a respective carriage (10A, 10B) is movable. Each carriage mounts a vertical telescopic mast (11A, 11B) with a head (13A, 13B) and chains (14A), such that telescopic operation of the masts raises or lowers top lift beams (6) for handling a load (17). The apparatus includes laterally movable jacks (7A, 7B) for use as stabilisers. In the inoperative position with the pedestals, tracks and masts folded down horizontally and lengthwise, the vehicle is of compact height and width. <IMAGE>
Patent GB-2089356-A (GB)
Title: Polymeric reaction products of amines and epoxyhalo compounds for use as hydrocarbon oil additives
IPC: C08G73/02
Filed: 1980-12-15
Abstract: The polymeric reaction products formed by reacting alkoxyalkylamines of poly(oxyalkylene)amines with epoxyhalo compounds selected from epihalohydrins and 1-halo-3,4- epoxybutanes, 2,3-epoxybutanes, 4,5- epoxypentanes and 3,4- epoxypentanes at temperatures in the range from 40 DEG C to 150 DEG C in the presence of inorganic bases may be used as sedimentation and degradation inhibitors in hydrocarbon oils, antifoulants, carburettor detergents, lubricant additives, and corrosion inhibitors.
Patent GB-2092240-A (GB)
Title: Gasket
IPC: F16J15/10
Filed: 1981-01-29
Abstract: A gasket comprises a sheet of sealing material defining a central aperture (2) and two spaced bolt holes (3, 4) on opposite sides thereof. The central region (A) of the gasket is more compressible than the material (B, B) outwardly thereof, the interface between the regions lying outwardly of the inner edge of the bolt holes. The interface, between the regions acts as a fulcrum so that when assembled between two flanged components, the flanges tend to bend convexly to improve sealing. As shown, the gasket comprises a relatively incompressible phenolic polymer (5) having recesses (6, 7) for layers (9, 10) of a more compressible polypropylene-bonded cork composition. <IMAGE>
Patent GB-2099988-A (GB)
Title: Composite panel structures e.g. oven doors
IPC: F24C15/02
Filed: 1981-05-21
Abstract: A panel structure suitable for oven doors of cookers comprises two sheet metal panels 1,2 each with a peripheral flange 3,4. The panels are detachably secured together in nested relationship with the flanges in close proximity by means of releasable fasteners of unitary form passed through aligned apertures 10,12 in the flanges. The fasteners have first and second surfaces that engage respectively the flanges 3,4 on the members and draw the flanges together when the fasteners are in position. <IMAGE>
Patent GB-2078093-A (GB)
Title: Protective suits
IPC: A41D31/00
Filed: 1981-06-19
Abstract: A light-weight protective suit adapted to afford a degree of protection against explosive blasts and airborne toxic or corrosive agents-particularly for non-military personnel-the suit comprising integral leg, trunk, arm and hood portions and being formed of non-porous flexible plastics material having a metallized, heat-reflecting outer surface, suitably aluminised polyvinylchloride.   <IMAGE>
Patent GB-2087911-A (GB)
Title: Packaging Polyurethane Foam B-components with Improved Stability
IPC: C08G18/48
Filed: 1981-10-12
Abstract: The stability or shelf-life of a B- component, suitable for use in producing low density packaging polyurethane foams, comprising water, fluorocarbon, polyol, foam catalyst and surfactant is improved by adding a Mannich polyol, preferably in an amount of 1 to 10% wt, produced by alkoxylating a Mannich condensate. The Mannich polyol is preferably prepared by reacting 2 to 3 mols of propylene oxide with 1 mol of the Mannich reaction product of 1 mol of phenol or nonylphenol with 1 or 2 mols of diethanolamine and 1 or 2 moles of formaldehyde. Foams are produced by reaction of the B- component with an A-component comprising a polyisocyanate.
Patent GB-2088065-A (GB)
Title: Improvements in or Relating to Extensometers
IPC: G01N3/06
Filed: 1981-10-20
Abstract: An extensometer, more especially for diametral measurements on creep test tension specimens 28 at elevated temperatures, has two opposed V- shaped Knife edge contact members 22, 26 which engage a specimen 28 diametrally. One Knife edge contact member 22 is supported by two tubes 14A, 14B from a frame 12, and the other 26 by two rods 24A, 24B which pass through the tubes. Changes in distance between the Knife edges are transmitted by the tubes and rods to transducers 36A, 36B in the frame, which provide signals related to dimensional changes in the specimen e.g. electrical optical or pneumatic signals. The rods and tubes may be made of alumina and the frame of a metal having a small temperature coefficient of expansion. The Knife edges are detachable to facilitate initial engagement with a specimen, and setting up in a creep test furnace 20. <IMAGE>
Patent GB-2110493-A (GB)
Title: Transistor switching circuit
Inventor: GOODMAN MALCOLM
IPC: H03K17/0422
Filed: 1981-11-19
Abstract: In a switching circuit to provide the necessary base driving conditions, a current control transformer (Tx1) couples the collector-emitter and base-emitter circuit. This transformer has a third winding in series with a diode (D) connected to the collector of the transistor (TR) and normally blocked. When the transistor (TR) conducts it unblocks the diode (D) so that current is diverted from the base via the third winding. This enables the transistor to work in a quasi-saturated mode, and thus allowing improved turn off to be obtained. In an alternative (Fig. 2) the diode-third winding combination is connected between the transistor's collector and base. The switching circuit is shown used in a DC-DC converter where a power transistor TR is switched on by a control or modulating circuit to drive a pulsed current through a power transformer (Tx2). The secondary of this transformer feeds the DC output via a rectifier (D1, D2) and filter L1- C1). <IMAGE>
Patent GB-2106212-A (GB)
Title: Connecting devices
Inventor: SYMONS IAN
IPC: F16B7/04
Filed: 1982-09-23
Abstract: One form of device (1) for endwise connecting two tubular members (15, 16) comprises two solid blocks (2, 3) for insertion at their ends into the tubular members and two thrust members, preferably in the form of set-screws (7, 8) arranged in the block (2) and movable relative thereto into engagement with the block (3) to force the blocks apart at their ends into locking engagement with the walls of the tubular members when the thrust members are actuated through apertures in the walls of the tubular members. In another form (19) of the device for connecting a tubular member (25) to a support (20) the blocks (21, 22) are inserted at one end in the tubular member and locked therein by a single thrust member (27), while their other ends are secured to or formed integral with the support. <IMAGE>
Patent GB-2112487-A (GB)
Title: Fastening element
Inventor: MORCZYNSKI FRED
IPC: F16B13/14
Filed: 1982-10-26
Abstract: For fastening a screw-threaded socket in a receiving material 3 having cavities 3a, the socket comprises an apertured tube 1 in which is arranged a deformable sheath 2 which is filled with an effervescing composition 4. As a result of internal pressure caused by effervescing of the composition, parts of the sheath 2 are forced outwards through the apertures 1b so that they project radially beyond the outer surface of the apertured tube 1 so that the socket is anchored in the cavities 3a of the receiving material 3. <IMAGE>
Patent GB-2123604-A (GB)
Title: Injection laser manufacture
Inventor: GREENE PETER DAVID
IPC: H01S5/223
Filed: 1982-11-05
Abstract: A method of making a channel substrate buried heterostructure InP/(In, Ga) (As, P) laser avoids the need to use two separate stages of epitaxial growth by using a channel in a (100) surface substrate 1 extending in the Ä011Ü direction with ä111üB sides. This allows the channel to be made before the growth of an (In, Ga) (As, P) blocking layer 3 which can be grown under conditions which do not require the use of a mask to prevent nucleation on the channel sides. The same technique is also applicable to the manufacture of a terraced substrate laser incorporating a blocking layer. <IMAGE>
Patent GB-2137392-A (GB)
Title: Gaming or amusement-with-prizes machines
Inventor: PRESSLAND ROY
IPC: G07F17/34
Filed: 1983-02-08
Abstract: The machine has a main display matrix (5) of symbols, preferably numbers, and a random selector device (10,11) similar to the reels of a fruit machine. When played, numbers selected by this device are illuminated on the matrix, and if they are in certain combinations such as rows, columns or diagonals, a prize is won. The machine further provides player-operable means (20) for altering the main matrix before the random selection is completed, such as by rotating sub-matrices, to improve the chances of a win. There can be separate but smaller subsidiary matrices (7) which may come into similar play on a random basis, and another feature (21) may occasionally allow symbols illuminated in one game to be held over to the next one. <IMAGE>
Patent GB-2123923-A (GB)
Title: Flbre-reinforced plastics connecting rod
Inventor: FISCHER THOMAS
IPC: F16C7/00
Filed: 1983-06-02
Abstract: A connecting rod made of fibre- reinforced plastics material and having at one end 2 a closed cylindrical bearing and the other end 3, a split cylindrical bearing comprises a closed loop 4 of reinforcement extending in a bight around the closed bearing cylinder 6 in the longitudinal direction along the rod to bights 4.1 around bolt 5. <IMAGE>
Patent GB-2142445-A (GB)
Title: A cooling-fan driving control system for a vehicle
Inventor: CHIBA HARUO
IPC: F01P7/16
Filed: 1983-06-24
Abstract: A control system has means for detecting the temperature of engine cooling water, at least one means for detecting the operating condition speed, acceleration, load of said engine, means for comparing a detected signal (T) from said water-temperature sensing means with a predetermined high level reference signal (TH) and with a predetermined low level reference signal (TL); means for comparing a detected signal from said operating condition detecting means with a predetermined parameter reference signal; and control circuit means generating a signal for driving said cooling fan when T > TH, blocking the generation of the driving signal when T < TL, and controlling the generation or blocking of the driving signal in response to the operating condition detected by said operational parameter sensing means when TL </= T </= TH. The driving signal may control a solenoid valve in an airline supplying a multi disc clutch connecting the fan to a drive shaft.
Patent GB-2142330-A (GB)
Title: Optionally 8-substituted 7-phenyl-1,2,4-triazolo [1.5-c] pyrimidines-5-amines and amides
Inventor: WAGNER HANS A
IPC: C07D239/42
Filed: 1983-07-01
Abstract: Compounds of the formula:   <IMAGE> wherein R represents hydrogen, C1-C4 alkyl, C2-C4 alkoxyalkyl, C2-C4 alkenyl or C2-C4 alkynyl; and R1 represents hydrogen or C1-C2 1-oxoalkyl, are pharmaceutically active and may be used as diuretic agents.
Patent GB-2131255-A (GB)
Title: Full-duplex speaker phone
Inventor: ASHBY ROBERT MORRELL
IPC: H04B3/20
Filed: 1983-09-13
Abstract: A speaker phone terminal in which a microphone (12) and a speaker (18) are connected to a telephone line pair (14) through a hybrid circuit (16) which, in itself, is insufficient to prevent oscillation due to feedback through audio coupling between the microphone and the speaker. Feedback oscillation is suppressed by converting the audio signal from the microphone to a higher frequency range by single- sideband modulation. The higher frequency signal is passed through a clipping circuit (42) which, in effect, is a switch which only closes when the absolute amplitude of the signal exceeds a predetermined threshold level. The output of the clipping circuit is then converted back down to the original audio range and coupled to the telephone line and the local speaker through the hybrid circuit. <IMAGE>
Patent GB-2125664-A (GB)
Title: A method of permanantly improving the surface drainage from ground fields preferably grass-covered fields as well as an apparatus for use by the  method
Inventor: HURUP-ANDERSEN ELO
IPC: E02F5/10
Filed: 1983-02-23
Abstract: By a method of permanently improving the surface drainage from a playing field, the ground is cut in a network of narrow, vertical trenches, which are filled with a porous material whereafter the ground cut up is divided into fine particles and distributed across the trenches and in the spaces therebetween. In this manner it is possible in a simple manner to improve essentially the surface drainage. An apparatus for use by the method comprises a framework (1) which can be suspended in the tree-point suspension of a tractor. A horizontal, transverse, rotatable main shaft (4) is mounted on the framework. One or more parallel cutting wheels (5) displaceable to the side are unpivotably mounted on the main shaft, and each cutting wheel comprises a plurality of cutting shovels (6) mounted thereon. The cutting wheel furthermore comprises power transferring means (7) for the transfer of the movement of the power take-off of the tractor for the rotation of the main shaft (4) with cutting wheels (5). The apparatus comprises furthermore two supporting wheels (11) connected to the framework, a scraper (12) situated behind each cutting wheel (5), and a gravel spreader (13) located above said cutting wheels. This gravel spreader is also driven by the tractor through the power transferring means (7) and releases the gravel to the rear above a transverse releasing roller. Subsequently, the gravel is transferred to a hopper unit (15) mounted on the gravel spreader, said hopper opening on to a jointed, horizontally and vertically movable double hopper (16) associated with each cutting wheel (5), whereby said double hopper can release the gravel in the trenches cut up. The framework (1) includes a detachable screening (20) secured above the cutting wheels (5) and the power transferring means (7). The entire framework with associated parts mounted thereon can be raised and lowered in such a manner that cutting wheels, scrapers, hoppers, and supporting wheels are raised from the ground, or so that cutting wheels, scrapers, and hoppers are lowered into said ground while the supporting wheels rest on the ground. As a result, an apparatus is obtained which implies that it is possible in an easy and quick manner to produce some trenches filled with porous material on a grass-covered playing field, said trenches improving the surface drainage.
Patent GB-2152693-A (GB)
Title: Optometer with astigmatism measurement
Inventor: CARTER IAN DENNISON
IPC: A61B3/036
Filed: 1983-12-16
Abstract: An optometer for the measurement of focussing error and for the detection and measurement of the characteristics of astigmatism giving an external view to allow the eye (2) under test to focus at a known distance, having a test image being a ring with fiducial marks (10c, 10d) superimposable upon the external view (3), said test image being mounted in an axially rotatable member (17) adjustable to provide first and second linear test images at right angles by adjustment of the optometer to a configuration at which the first and second focussing errors of an astigmatic eye may be determined, the radial position of the astigmatism being indicated by rotation of the test image to place the fiducial in the centre of the first or second linear test image. <IMAGE>
Patent GB-2154947-A (GB)
Title: Key mechanism for a keyboard
Inventor: SOUTHWARD DAVID CONNER
IPC: H01H3/12
Filed: 1984-01-12
Abstract: A key assembly (1), for a keyboard, includes stabilising arms (3, 4) attached to a shaft (1) of the assembly for correcting any binding caused by tilting of the shaft during keyboard operation. An L-shaped key can be stabilised using 3 stabilising arms (3, 4, 9 in Fig. 4). Also, as shown in Fig. 5, an arrangement for supporting a long narrow key (20) for a keyboard includes a linking rod (22, 23, 24) held by clips (25-30), which, over the central part of the rod, are provided by spaced-apart parts of a generally U-shaped member (27 and 28, 29 and 30). <IMAGE>
Patent GB-2134282-A (GB)
Title: Optical elements having interference layers of ZnS and Al2O3
Inventor: BORN REINHARD
IPC: G02B5/28
Filed: 1984-01-26
Abstract: Optical elements, in particular filters, with interference layers comprise alternately slightly refractive and highly refractive dielectric layers deposited on a substrate 2. The first layer 1 applied to the substrate is Al2O3, constituting a slightly refractive layer, after which further layers 2 to n of ZnS and Al2O3 are applied in an alternating sequence. The last layer n consists of Al2O3. Such layers can be applied, at low temperatures, on flat substrates and, in particular, on sharply curved substrates. <IMAGE>
Patent GB-2155089-A (GB)
Title: Mine roof support with rear linkage
Inventor: ALLEN ARCHELAIUS DAWSON
IPC: E21D23/04
Filed: 1984-03-02
Abstract: A mine roof support has a floor engaging base 10, a roof engaging canopy 14, load bearing hydraulic jack means 17 operable to urge the base and canopy apart, a downward projection 16 from the roof engaging canopy providing a pivot 20 at the lower end thereof, an upward projection 18 from the floor engaging base providing a pivot 19 at the upper end thereof, and a fixed length link 21 connecting the said pivots in such a manner that the canopy pivot is capable of moving higher and/ or lower than the base pivot. <IMAGE>
Patent GB-2138424-A (GB)
Title: Diethylene-triamine-penta(methylenephosphonic acid) solutions
Inventor: HARGREAVES ROGER GEOFFREY
IPC: C07F9/38
Filed: 1984-03-23
Abstract: The stability of aqueous solutions of diethylene triamine penta (methylene phosphonic) acid, comprising at lest 20% by weight of active material, is improved if the acid is partially neutralised. The major part e.g. 55 to 85% by weight of the acid is preferably diethylenetriaminepenta (methylenephosphonic) acid itself. The preferred products are derived by neutralising from 10 to 30% of the replaceable hydrogen with sodium potassium or ammonium ions. The salt solutions are less corrosive than known products to which mineral acid has been added.
Patent GB-2161122-A (GB)
Title: Door-mounted vehicle control switch
Inventor: JONES MARTIN E
IPC: B60R13/02
Filed: 1984-07-03
Abstract: A pair of pressure-sensitive switches (12, 22) mounted on a rigid door panel (40) control an electric motor for raising or lowering a window. The elastic, foam backed trim layer (42) stretched over the panel (40) is embossed at regions (10, 20) overlying the switches to enable the operation of the switches through the trim layer and to define the switch position both visually and by touch. <IMAGE>
Patent GB-2164889-A (GB)
Title: Cutting system
Inventor: BENNEY ROGER JOHN
IPC: B26D7/06
Filed: 1984-09-27
Abstract: A cutting system comprises a cutting station (10) at which a lay L of material assembled between a cutting die (D) and a cooperating cutting surface (P) can be cut by pressing said die through the lay against the surface, means (20) being provided for advancing the assembly to and through said station (10). Cooperating with the advancing means (20), for forming therewith an enclosed chamber within which said assembly can be contained, is enclosing means (36) comprising a top member (34) and skirt arrangement (38) which extends between the top member and a surface portion of the advancing means and forms a seal therebetween, the skirt arrangement (38) providing side walls of the chamber. Means is also provided for connecting the enclosed chamber to a suction source which is effective to cause the top member (34) to be drawn more closely to the advancing means (20), the skirt arrangement (38) yielding during such movement of the top member and the lay being compressed between the cutting die and the cooperating cutting surface. <IMAGE>
Patent GB-2170705-A (GB)
Title: Cordless hair dryer
Inventor: BISHOP EDWARD DESMOND
IPC: A45D20/06
Filed: 1984-10-20
Abstract: A cordless hair dryer comprises a fan 1 driven by motor 2 powered from batteries (not shown). The fan 1 drives air across the hot surface of catalytic burner 8, which burner 8 is fed with gaseous mixture from storage tank 19 via burner pipe 14. The hair dryer includes electrical ignition of the burner and a pre-fuel feed device which delivers fuel in a smooth and even flow. <IMAGE>
Patent GB-2150677-A (GB)
Title: Heat recovery from regenerative furnaces
Inventor: NELSON FREDERICK JUSTIN
IPC: C03B5/237
Filed: 1984-11-01
Abstract: For recovering clean hot air from a reversing regenerative glass melting furnace of side-port or end- port type a passageway 21-22-23 is provided which connects the regeneration chambers 11, 17 of the furnace at their tops, this passageway, at its center, being connected via duct 25 to a heat exchanger 26. More air than is necessary for combustion is supplied to the furnace and the excess affer being heated in the air supply side regenerator of the furnace will pass to the heat exchanger 26 to heat fluid passing from inlet 29 to outlet 30 for use in, e.g., batch preheating or generating electricity. No valving is necessary to ensure that hot air flowing to the heat exchanger 26 is obtained from whichever is the air supply side regenerator of the furnace because there is a natural pressure drop from supply to exhaust side of the furnace and because duct 25 is maintained at appropriate pressure, e.g. by blower 28. <IMAGE>
Patent GB-2170241-A (GB)
Title: Checking outside diameter of well tools
Inventor: TAYLER PETER JOHN
IPC: E21B41/00
Filed: 1985-01-30
Abstract: A steel or metal alloy hollow cylinder, open at both ends and having an accurately manufactured and calibrated internal diameter, is used to check if any tool run into an oil, gas or water well is not oversized, and thus save expensive delays. It can be tapered at one end to provide easy entry for tools.
Patent GB-2170784-A (GB)
Title: Web tension control
Inventor: SISSONS ANTHONY JOHN
IPC: B65H23/06
Filed: 1985-02-11
Abstract: An apparatus varies the supply of power, from a constant source (9), to a web-braking means (4) to control tension in the web (2). A tension-sensing means (5) traversed by the web produces an output signal which is proportional to the tension and which is variable (at 6) in accordance with a first parameter of the web material. The resultant modified signal passes to a relay (8) governing the proportion of the constant power fed to the web-braking means, the relay itself permitting the introduction of a variable ratio in accordance with a second parameter of the web material. <IMAGE>