baber/WOPTO huggingface dataset:
Patent GB-1126059-A (GB)
Title: Manufacture of semiconductor solid-state devices
Inventor: HORSLEY ANTHONY WILLIAM
IPC: H01L21/762
Filed: 1966-12-19
Abstract: 1,126,059. Semi-conductor devices. STANDARD TELEPHONES & CABLES Ltd. 19 Dec., 1966, No. 56620/66. Heading H1K. A solid state semi-conductor device assembly is manufactured by forming a dielectric layer over a whole major surface of a semi-conductor wafer with a stepped edge formation, depositing material with matching coefficient of expansion (such as polycrystalline silicon) over the dielectric to form a substrate and reducing the thickness of the original wafer down to the depth of the step. In the embodiment, a dielectric layer 4 of silicon nitride or silicon dioxide is deposited on an N-type, 0À006 in. thick silicon wafer with step 2 and a 0À008 in. thick layer 5 of polycrystalline silicon is deposited on the dielectric; part of the original water is then removed by lapping or air abrasion to leave a portion 1a supported via layer 4 on layer 5 as shown in Fig. 8. The step 2 acts as a guide in the lapping process and may comprise two portions giving " coarse " and " fine " control. Photo-resist and etching techniques are used to provide grooves in layer 1a extending down to either the dielectric 4 or substrate 5 to provide isolated " lands" which are subjected to diffusion and deposition techniques to produce transistors interconnected by aluminium connections as shown in Fig. 6. Alternatively, the transistors may be provided first and grooves or regions of P-type conductivity then provided to isolate the individual transistors.
Patent GB-1304770-A (GB)
IPC: C07D233/72
Filed: 1970-12-02
Abstract: 1304770 Diglycidyl compounds CIBAGEIGY AG 2 Dec 1970 [5 Dec 1969] 57273/70 Addition to 1290728 Heading C2C [Also in Division C3] Novel diglycidyl compounds of the formula wherein Y is a hydrogen atom or a methyl group, are prepared by reacting a monoalcohol of the formula in a single stage or several stages with an epihalogenohydrin. In the one-stage process the reaction is carried out in the presence of an alkali and in the two-stage process the monoalcohol is first condensed with the epihalogenohydrin in the presence of an acidic or basic catalyst and the resulting halogenohydrin is dehydrohalogenated by means of an alkali to give the diglycidyl ether. Examples describe the preparation of 1-glycidyl-3-(2<SP>1</SP>-glycidyloxyethyl) - 5,5 - dimethylhydantoin and 1 - glycidyl - 3 - (2<SP>1 </SP>- glycidyloxy - n - propyl). 5,5-dimethylhydantoin
Patent GB-574961-A (GB)
IPC: F28F9/007
Abstract: 574,961. Aircraft radiators. FELL, L. F. R., and EDIS, A. R. July 12,1944, No. 13350. [Class 79 (iii)] [Also in Group XXXIII] Means .for supporting an arcuate radiator comprise an annular box-girder 10 provided internally with rubber or like cushioning means, the radiator being supported therein on the cushioning means and anchored to the girder at one point only. The girder consists of an inner light alloy casting 11, lined with strips of sponge rubber, and connected by bracing 15 to an outer member 12 formed by a plain plate 13 welded or riveted to a corrugated plate 14, the plate 13 being lined with sheet rubber. The radiator matrices are supported between the rubber strips and rubber sheets, and are secured to the girder 10 at one end only so as to be free to expand circumferentially. The radiator comprises three units, viz.: a main engine cooler, an inter-cooler and an oil cooler, each matrix having cast or sheet metal tanks attached. The whole structure is supported from the aircraft engine and cowling by resilient means.
Patent GB-1205968-A (GB)
Title: Hollow body for containing fluids, more particularly storage vessel, and method of producing the same
IPC: B29D22/00
Filed: 1967-12-20
Abstract: 1,205,968. Moulding plastic substances. OWENS-CORNING FIBERGLAS CORP. 20 Dec., 1967 [14 Feb., 1967], No. 57929/67. Heading B5A. [Also in Division E1] A tank, the walls of which comprise an inner polyester resin rich layer supported by a mat of glass fibres, a central portion of random array chopped glass strands and polyester resin and an outer layer similar to the inner layer is manufactured by applying the layers successively to a rotating mandrel 82, an end cap 52 of similar composition having been previously moulded on a fixed mandrel. The application apparatus comprises several resin guns 78, a roving chopper 114 and a surfacing mat roll 102 mounted on a carriage 108. After the formation of the wall as set out above, the resin is cured sufficiently to allow it to support trapezoidal wood blocks which in turn support trapezoidal hollow cardboard ribs over which a strip of woven roving is applied and held by tacks. Subsequently, a layer of resin-impregnated continuous rovings are wound over the ribs and heated as they are applied to give a part cure and then the whole lay-up is heated to cure to a hard solid state. The complete tank is made by clipping together two halves made as made above and then applying a layer of mat over the joint followed by alternate layers of mat and roving all impregnated with resin.
Patent GB-1340247-A (GB)
Title: Winch control system
IPC: B66D1/50
Filed: 1971-12-14
Abstract: 1340247 Friction clutches; clutch control BYRON JACKSON Inc 14 Dec 1971 [28 Jan 1971] 58081/71 Headings F2C and F2L [Also in Divisions G3 and B8] A tensioning winch control system on a ship comprises a winch 13 for the tensioning cable L driven through a slipping clutch C to apply a substantially constant tension to the cable, the amount of clutch slip being controlled in response to signals from a cable position sensor 16 and a cable tension sensor 15. The cable L from the drum 13 passes between rollers 17, 18 and 22 of an hydraulic tensionmeter forming the sensor 15, the roller 22 being carried on a floating shaft of an hydraulic sensing unit 24 producing an hydraulic pressure signal which is a function of the cable tension. The cable position sensor 16 comprises a threaded shaft driven by the cable passing over the roller 17 secured to the shaft and rotation of the shaft causes a rotationally secured nut to move along the shaft to control movement of a piston controlling the amount of signal air passing through the sensor from a source to line 85a. The sensor 16 is adjustably supplied with air through line 86a, to oppose movement of the said piston from calibration purposes. In order to control the speed at which the cable L may change position an air pressure signal is generated in line 26a proportional to the drum speed by a coupled tachometer signal generator 25 and electromagnetic transducer 26. The output from the hydraulic unit 15, the position sensor 16 and the transducer 26 are compared by a computer means 27 to generate an air pressure signal to control the clutch C, the computer means 27 comprising a plurality of coaxial chambers having flexible diaphragm and floating pistons therebetween, each chamber being fed by its associated signal pressure and one chamber having a reference pressure supplied thereto, the net movement of the floating pistons controlling the exit air pressure signal from the computer through line 300. The latter passes the pressure signal into a pressure controller C1 which proportionally adjusts the output pressure therefrom at line 302 of an air pressure source at line 303. The pressure signal from line 302, 325 controls a booster 326 supplying higher pressure air to control the clutch C, a selection valve 329 in the booster output line 328 permitting the booster signal to be isolated whereby the clutch may be controlled by a manual valve. A second controller means C2 is provided between the sensor 15 and the computer 27 to generate an air pressure signal proportional to the hydraulic pressure signal of the cable tension sensor 15. The slipping clutch comprises an outer housing 54, 57, 58 chain driven from the winch motor, and incorporating a pair of liquid cooled friction plates 56, 61 movable relative to each other by an expansible element 67 controlled by the air pressure supplied thereto from the control arrangement, and a driven plate 62 splined to the drive shaft 11 to the drum frictionally engaging between the first said plates.
Patent GB-1299382-A (GB)
Title: Measuring system
Inventor: DYCK DONALD EDWIN VAN
IPC: G01S15/10
Filed: 1969-12-03
Abstract: 1299382 Automatic control of temperature PENNWALT CORP 3 Dec 1969 [30 Dec 1968] 59082/69 Heading G3R [Also in Divisions G4, H4] In a system for maintaining constant the temperature of an enclosure containing a mercury manometer whose two meniscus heights are compared by an ultrasonic pulse-echo device (see Division H4), heating elements 538, 540 past which air is blown by a fan are disposed one at the top and one at the bottom of the enclosure and are provided with both on/off and proportional control systems. The on/off control comprises a mercury-in-glass thermostat switch 541 (inside the enclosure) which closes if the temperature rises above 95‹F, thereby causing transistors 1232, 1233 to conduct and provide a shunt path which prevents the development of trigger pulses for the gate of a triac 1234 and so prevents energization of the heating elements by a mains supply 1203. Below 95‹F switch 541 remains open and the proportional control takes over as follows. An A.C. signal derived from the mains is fed over network 1208, 1224, 1209 to integrated circuit 1206 which discharges capacitor 1226 rapidly as the mains voltage goes through zero. This discharge induces a pulse in transformer 1236 for triggering triac 1234. The capacitor 1226 recharges slowly via the integrated circuit and with a time constant dependent on the impedance of a thermistor 543 in a bridge at the input of the integrated circuit. Thermistor 543 senses the ambient temperature of the enclosure. The heating element duty cycle is illustrated in Fig.13 for different ambient temperatures: thus at 94‹F ambient, the elements are on only during occasional mains cycles and at 60‹F are on during most mains cycles. A thermal cut-out (not shown) disconnects the mains supply if the enclosure internal temperature exceeds 120‹F.
Patent GB-1267847-A (GB)
Title: An automatic control device for irrigating, spraying and sprinkling of cultures
IPC: A01G25/16
Filed: 1969-12-05
Abstract: 1,267,847. Watering crops. L'ELECTRONIQUE APPLIQUEE. 5 Dec., 1969 [10 Dec., 1968], No. 59583/69. Heading A1E. [Also in Divisions G1 and H3] In irrigation of crops or spraying of fruit buds in orchards, a relay 33 is energised to close a circuit 55 for the water pump only when the right conditions of temperature and ambient luminosity prevail. In the irrigation control system shown transistors 30, 31 and 32 form an AND gate so that relay 33 can be energised only when all conduct. Transistor 30 conducts only when the temperature sensed by negative temperature coefficient thermistor I exceeds a given value set by adjustment of resistor 9; transistor 31 conducts only when the ambient luminosity sensed by a photomultiplier 2 is less than a given value set by adjustment of resistor 13; and transistor 32 conducts only when the soil moisture content sensed by buried chromium electrodes 3 is less than a given value set by adjustment of resistor 14. Resistor 15 enables compensation to be made for different lengths of cable between the electrodes 3 and the rest of the apparatus. When transistors 30, 31 and 32 are all conducting, R.C. timing circuits 54, 53 and 39, 40 cause transistor 46, and thus relay 33, to be switched off and on at 30 minute intervals. For spraying, the circuit may be arranged so that transistor 30 conducts only when the temperature is below a given value.
Patent GB-1389953-A (GB)
Title: Apparatus for cold forming half tori from annular flat plates
IPC: B21D5/01
Filed: 1972-12-27
Abstract: 1389953 Making pipe bends; stamping COMBUSTION ENG Inc 27 Dec 1972 [29 Dec 1971] 59677/72 Headings B3A and B3Q Apparatus 31 for cold forming a half torus 10, Fig. 1, from an annular flat plate P comprises a first base or lower platen 34, a second base or upper platen 60 actuating means for moving one of the bases towards the other, a female die member 32 extending from the first base, the die member 32 having a cylindrical surface 56 for locating and retaining the plate P 1  two cylindrical surfaces 42, 48 defining an annular channel 40, and a cylindrical outer surface 36; and a male die member 58 extending from the second base and having a first plunger 64 for cold forming the plate in the channel 40 and a second plunger 62 for flanging the plate, the plunger 62 being positioned to permit its passage along the outside of the surface 36. The plate P is initially supported at its centre on the surface 52 and at its periphery on a rounded lip portion 46 of the die member 32. As the platen 60 is lowered the plunger 62 forms the plate into a shallow cup (P<SP>1</SP>), Fig. 4 (not shown), having a downwardly flanged edge (94). This operation prevents wrinkling of the material as the plunger 64 subsequently forms the cup (P<SP>1</SP>) into a halftorus (P<SP>11</SP>), Fig. 5 (not shown). The die member 58 is withdrawn and an actuating shaft 84 of ejection means 82 drives spider arms 88 upwardly to force the half-torus out of the die member 32. Two half-tori 10 are welded together by being turned under an automatic welding head and subsequently cut into sectors, such as sectors 20, 22, 24, 26 to form pipe bends.
Patent GB-1330590-A (GB)
Title: Automatically operated parking meter
IPC: G07F17/24
Filed: 1971-12-31
Abstract: 1330590 Parking meters TOKYO TRAFFIC SAFETY ASSOCIATION 31 Dec 1971 [29 March 1971] 60930/71 Heading G4V A parking meter comprises a vehicle detecting circuit 200 having a vehicle detecting means which passes current to a time-delay circuit 300 only when a vehicle occupies a parking space; said time-delay circuit passing the current to a clock circuit 400 only if the current from the vehicle detecting circuit is applied continuously for a predetermined time; said clock circuit having clock means 402 and a time elapsed indicator 404, 405. The vehicle detecting means may comprise weight, inductive or reflected infra-red or ultrasonic sensors. In the embodiment described the synchronous electric clock 402 is coupled to a drum 401 and the indicator hand 405 by a relay 403 connected to the time-delay circuit 300. At the end of the timed delay a warning lamp 502 is illuminated and an electromagnet 601 is energized to remove a blocking member 602 from a coin shoot 603 allowing the insertion of a coin. After a "hesitating" time period drum switches 410 and 430 are closed to energize a further warning lamp 501 and alarm buzzer 503. The insertion of a coin closes switch 610 energizing relay 620 to open the circuits to lamps 501, 502 and buzzer 503. At the end of the maximum rental period contacts 442, 443 of drum switch 440, and drum switch 430 open, closing the coin insertion slot and actuating the alarm buzzer 503. At the full scale position of indicator hand 404 drum switch 420 is opened to disconnect the synchronous motor 402 when the vehicle leaves the parking space to the circuit to electromagnetic coupling 403 is opened and the drum 401 returned to its zero position by means of a spring irrespective to whether rented time is still available.
Patent GB-702507-A (GB)
Abstract: 702,507. Liquid-fuel burners. DANIEL & CO., Ltd., D. A. Jan. 15, 1952, No. 1098/52. Addition to 693,015. Class 75 (1) The burner-head according to the parent Specification is modified by the provision of a pilot or preheating jet 8 which discharges into a tube 6 opening into the combustion chamber 1, air from a common inlet 3 being supplied to the conduit 2, which projects into the combustion chamber and is returned back to the burner-head and to which the main fuel is supplied by a jet 5, and also through apertures 9 in an end plate of the tube 6 into the latter. A sparking plug 10 for igniting the jet 8 projects through the wall of the tube 6 to be shielded thereby from the main combustion, i.e., that of the fuel air mixture discharged from the conduit 2 through a curved outlet 25 and swirled by a helical vane 26. The conduit 2 may comprise corrugated portions to avoid distortion due to thermal expansion. Specifications 616,006, [Group XIII], and 648,158 are referred to.
Patent GB-2000145-A (GB)
Title: A process for isolating beta-acetyldigoxin from the crude product of partial acetylation of digoxin
IPC: C07J19/00
Filed: 1978-06-16
Abstract: This invention provides for isolating beta-acetyldigoxin, a substance having cardiotonic activity, from the crude product resulting from partial acetylation of digoxin. The present process employs a recrystallization technique using particular solvent combinations which is relatively simple and enables good separation of undesired impurities from the desired beta-acetyldigoxin to be achieved without need for preliminary purification of the said crude product. The present process comprises (a) dissolving the said crude product, preferably at reflux temperature, in a first combination of solvents, (b) separating the crystals which result after cooling, preferably to room temperature, (c) redissolving said crystals in a second combination of solvents, and (d) isolating the fresh crop of crystals which separates after cooling, preferably to room temperature, the first and the second combinations of solvents being acetone/n-hexane and chloroform/toluene, or methanol/water and methylene chloride/ether, or methylene chloride/carbon tetrachloride and methanol/water, respectively. The beta-acetyldigoxin product of the present process may be made up in the form of a pharmaceutical or veterinary formulation or composition.
Patent GB-2027001-A (GB)
Title: Scale Reduction Device for Water Treatment
IPC: C02F5/02
Filed: 1978-07-29
Abstract: A scale reduction unit for a water installation is constructed using a T- piece and either a second T-piece connected with the arms of the T's aligned to define a cavity for a water treatment cartridge and the other ends of the arms closed, with the legs of the two T-pieces forming inlet and outlet passages for the water, or the said T-piece connected to an elbow fitting so that the arms of the T-piece and one arm of the elbow defines the cavity for the cartridge and the other arm of the elbow and the leg of the T- piece form the water inlet and outlet connections, the free end of the other arm of the T-piece being closed. The closed end of the T-piece or one of the closed ends of the two T-pieces when two are used is closed by a removable cap to allow removal of a spent cartridge and insertion of a replacement cartridge. The said pipe fittings are preferably standard components of plastics material which are connected together by adhesive and connecting sleeves.
Patent GB-2028219-A (GB)
Title: Cellulose derivative membrane
IPC: B29D7/01
Filed: 1978-08-11
Abstract: A cellulose derivative membrane suitable for reverse osmosis is made from a casting solution containing a tetracarboxylic acid having the formula R(CO2H)4 wherein R is a substituted or unsubstituted tetra-functional aliphatic or alicyclic organic radical having from 2 to 10 carbon atoms. If desired one or more mono- and/or di-carboxylic acids can be included in the casting solution. The membrane has not more than 0.2 voids per 0.844 mm<2>.
Patent GB-2004263-A (GB)
Title: Method of synthesising mullite
IPC: C04B35/63
Filed: 1978-09-12
Abstract: A mullite is synthesised by reacting in the presence of water stochiometric quantities of a lower alkyl silicate and a water soluble aluminium compound capable of being hydrolysed to a polymerisable substances e.g. aluminium chlorohydrate or aluminium alkoxide. The reaction product contains silicon oxygen and aluminium and on firing gives a residue containing the mullite. The most useful industrial application of the invention is to cause or allow the reaction system to gel into a rigid and coherent mass into which refractory grains can be incorporated.
Patent GB-2007808-A (GB)
Title: Stop valve assembly
IPC: F16K41/10
Filed: 1978-11-07
Abstract: The assembly comprises a cup- shaped valve 9 which has a flat circular disc 10 which seats on the seat 3 of the tap body 1, and a flexible cylindrical skirt which connects the periphery of the disc with an annular flange 12 which is clamped between the head 6 and body 1 of the tap to isolate the head works of the tap from the water flow. An axial valve stem 14 connects the interior face of the disc with a hand control 8. A saucer-shaped bush is disposed in the mouth of the cup valve 9 and has a central polygonal guide aperture through which the valve stem 14 projects, flats 22 on the valve stem mating with the polygonal aperture to prevent relative rotation of the guide bush and stem. The annular flange 12 of the cup-valve is compressed against a rim portion of the guide bush to prevent rotation of the bush. In this way the setting up of torques in the flexible skirt of the cup-valve is prevented on opening and closing of the tap and a positive stop in the rotation of the control is obtained. To provide a tamper-proof hand-control 8 the non-rising spindle 7 connected thereto is prevented from being lifted out of engagement with the interior of the tap head 6 by means of a circlip on the lower end of the spindle. <IMAGE>
Patent GB-2012711-A (GB)
Title: Opening gusseted webs
IPC: B65B9/13
Filed: 1978-12-29
Abstract: In a machine for applying a gusseted tubular web 17 to a palleted load 2 and having means 33 projecting into the gusset folds of each side of the web to open the gusset and to present the web to grippers 17 on the web opening and feeding chains 10, the means each comprise a fixed gusset opening member 38 and a further member 39 movable between a position in which it co-operates with the chains 10 and a retracted inactive position in which it lies out of the operational path of the cutting and welding elements 28. Each member 39 may be withdrawn either into the fixed member 38 or horizontally out of the machine. <IMAGE>
Patent GB-2042676-A (GB)
Title: Torsion Bar Spring with Thicker Portion
IPC: F16F1/16
Filed: 1979-02-21
Abstract: An L-shaped torsion bar spring consisting of a torsion arm 15 and a lever arm 17 has, in the region of the elbow of the two arms, a part of greater cross-sectional area than the torsion arm. The increased cross-sectional area of the elbow accommodates increased stresses in the bar allowing a bar with shorter arms to be used without approaching the elastic limit of the bar undesirably closely. The spring is used to bias a tiltable cab structure of a truck into the tilted position. <IMAGE>
Patent GB-2015109-A (GB)
Title: Nail for Metallic Materials
IPC: F16B19/14
Filed: 1979-02-22
Abstract: A nail intended to be driven into metallic material by an explosive setting apparatus has a pointed end portion (3), a substantially cylindrical knurled shank (1), and a nailhead (2) which is larger in diameter than the shank. The nail is profiled over its length from the pointed end portion to at least the underside of the nailhead so that its external form extends in a continuous mathematical curve in the axial, radial and all intermediate directions, and the knurl (5) extends axially, with elevations and depressions of semi-circular form in radial cross-section, the mean diameter (8) of the shank being obtained from the sum of these elevations and depressions. <IMAGE>
Patent GB-2148809-A (GB)
Title: Self-propelled missile
Inventor: SCRACE HAROLD ALAN
IPC: B64D33/02
Filed: 1979-03-15
Abstract: A missile having longitudinally extending strakes 11 which constitute a housing for accessories, fuel, or other services is provided with stowable air intakes 12, comprising substantially U-shaped housings 13. In the stowed position, the housings 13 embrace the strakes 11 and lie flush on them, while in the open position the housings 13 and strakes 11 define between them air ducts leading to a propulsion engine 27. <IMAGE>