baber/WOPTO huggingface dataset:
Patent GB-1308487-A (GB)
Title: Light emitting assemblies
IPC: H01L23/48
Filed: 1970-12-09
Abstract: 1308487 Electroluminescence GENERAL ELECTRIC CO 9 Dec 1970 [29 Dec 1969] 58537/70 Heading C4S [Also in Divisions F4 and H1] A solid state lamp comprises a substantially flat light emitting diode element 11 having top and bottom major surfaces, mounting metal tab 12, electrical contact at a small area of the top surface, the emitted light being substantially unobstructed, tab 12 being in contact with only a minor proportion of the bottom surface, the remainder of the bottom surface being bounded by air or other material (e.g. nitrogen) whose refractive index is lower than that of air so as to increase reflection of the diode light from the bottom surface and hence emission from the upper surface, the top surface of the diode element being encapsulated in an encapsulant of refractive index greater than that of air to reduce internal reflection. The depression in support 12 may have tapered (e.g. 30 to 45 degrees) and reflective sides (14) and the dimple (16) (Fig. 3, not shown) may be circular and of diameter less than the diagonal of the diode element. The encapsulant front surface may be hemispherical and may be of glass or plastics (e.g. acrylic or other resin). The diode may be a flat chip of GaAs, GaP or SiC doped to emit visible or infra-red, and in, Figs. 2 and 3 (not shown), the side length of the diode approximately equals the inner diameter of dimple (16) and the corners may be soldered or cemented to the tab. The encapsulant may also be at the sides of the diode, the latter being at or between the centre and Weierstrass radius of the hemisphere. Preferably the encapsulant is  inch high. Reference is made to another technique to prove light output wherein diodes are spherically or part spherically shaped.
Patent GB-1204031-A (GB)
Title: Method for sealing fluidtight containers, e.g. coffins constituted by the assembly of rigid sections
Inventor: GAUCHAUD FERNAND
IPC: A61G17/00
Filed: 1967-12-28
Abstract: 1,204,031. Coffins. F. GAUCHAUD. 28 Dec., 1967 [6 Jan., 1967], No. 58894/67. Heading A5X. A coffin comprises rigid sections 1, 2, 3, each of the sections having strips 5 of deformable weldable material fluid tightly fixed on its inner surface adjacent the areas of contact with cooperating sections, the sections being assembled with a clearance between them and the strips extending through the clearance where their edges 8, are welded to the edges 9 of the strips of the adjacent cooperating sections, to seal the clearance. The coffin may be evacuated, washed or filled with antiputrefactive gas through a pipe-connection 11 which extends through one strip edge or is welded between two strip edges. The connection 11 is closed by welding. The coffin is finally closed by pushing the welded strips to the inside of the coffin through the clearance and mechanically securing the sections together e.g. by screws 4 to close the clearance. The strips may comprise lining sheets 5 which may have welded seams 6 on the interior of the coffin. In a coffin made of synthetic resin the edges of the strips embedded in the resin of the inside surface of the sections. The strips may be made of lead.
Patent GB-1336448-A (GB)
Title: Heat exchangers
IPC: F24F12/00
Filed: 1970-12-14
Abstract: 1336448 Plate heat exchangers CENTRE SCIENTIFIQUE ET TECHNIQUE DU BATIMENT 14 Dec 1970 [12 Dec 1969] 59386/70 Heading F4S A cross-flow heat exchanger is formed from a stack of plates la, 1b, 1c, 1d, joined in pairs at their inlet edges 2 and 3 to define cross-flow passages in the directions A and B for the heat exchanger fluids. Each plate has upper and lower sets of integral studs 9, which sets are offset from one another, and which co-operate with the studs of super and subadjacent plates to define the fluid flow passages. Deflectors (22, Fig. 8, not shown) may block off certain of these passages. Fluid flow fans (not shown) may be located in headers adjacent the heat exchanger fluid outlets. Angle irons 15 hold the plates together between two rigid end plates to form a heat exchanger member (Fig. 6, not shown). Such a member may be mounted in an inclined position (Fig. 17, not shown) or be detachably secured to other such members to make up a heat exchanger assembly of large capacity (Fig. 7, not shown). The plates may be formed by stamping, forming, calendering or embossing metal, or by cold stamping, hot stamping, hot vacuum forming, hot forming, blowing or continuously calendering over studded cylinders, an antistatically treated plastics, such as cellulose acetate, cellulose acetobutyrate, cellulose proprionate, polyvinylchloride and vinyl copolymers, polystyrene, butadiene styrene acrylonite, high density polyethylene, polypropylene, polymethylpentene, polymethylmethacrylate, butadiene styrene methacrylate and polycarbonate, or from plastics coated metal. In use, air extracted from a building flows in one direction and heats or cools a forced fresh air flow in the other direction. To prevent possible frosting up of the heat exchanger the fresh air flow to it may be controllably preheated by an electrical resistor or a hot water radiator in the inlet duct to the heat exchanger (Figs. 9 and 10, not shown), or the fresh air flow to it may be controllably throttled by a sliding shutter located close to its inlet to reduce the air flow through its coldest portion (Fig. 12, not shown), or a controllable by-pass around it may be provided (Fig. 15, not shown), or a brine solution may be controllably trickled from an upper manifold to a lower reservoir over the inclinedly mounted plates on the air extraction side, incidentally cleaning them (Fig. 14, not shown), or a substance may be controllably sprayed into the extracted air upstream of the heat exchanger to prevent condensation and freeze up on cooling, the control in each case being determined by the fresh air inlet temperature.
Patent GB-1337132-A (GB)
Title: Fluid storage systems
IPC: B65D88/78
Filed: 1970-12-22
Abstract: 1337132 Floating storage tanks MANNESMANN (NEDERLAND) NV 22 Dec 1970 [24 Dec 1969] 60929/70 Heading B7A Flexible oil storage containers float on water  and are each located in an individual compartment formed by vertical partitions which extend above and below the water surface. The spread of any leaking oil is thus limited. As illustrated, closed storage containers 9 float in compartments 6 of a basin which is divided by partitions 5. The partitions carry fire screens and are linked by chain netting 11 which distributes partition loading in the event of oil leakage and which rests on the containers to keep them in position. The compartments are connected by passages 8 to a channel 12 at the edge of the basin to allow pressure equilibration. The entrances of the passages 8 are low enough not to be reached by oil in the event of container leakage. The containers 9 are rectangular in plan, and carry fireproof weighting layers on their upper surfaces and buoyant layers on their lower surfaces. In another embodiment (not shown), each container is dome shaped and has an open lower side.
Patent GB-1288077-A (GB)
IPC: G21C5/12
Filed: 1969-12-16
Abstract: 1288077 Moulding fuel element NUKEN NUKLEAR-CHEMIE UND METALLURGIE GmbH 16 Dec 1969 [22 Jan 1969] 61131/69 Heading B5A [Also in Division G6] A nuclear fuel element is made from a mix of coated nuclear fuel particles and a moulding powder consisting of natural graphite and/or graphitized petroleum coke and a binder, e.g. a phenol resin, in a rubber mould having a prismatic cavity closed by a rubber cover at its upper and lower ends. The upper cover is provided with holes through which sticks of rubber or metal are inserted for forming cooling ducts in the fuel element. The sticks run parallel to the longitudinal axis of the prism and are inserted into corresponding recesses in the lower cover. The mix is moulded isostatically in liquid at a pressure of 0À1 t./cm.<SP>2</SP>. The sticks are then replaced by slightly thinner sticks and the resulting gaps filled with moulding powder. The surface of the prism is covered with the same powder and the mix moulded to completion at a pressure of 2 to 3 t./cm.<SP>2</SP> to produce a block element with homogeneously distributed fuel particles surrounded by a fuel-free layer.
Patent GB-1222741-A (GB)
Title: Improvements in or relating to endless track-belt tractors
Inventor: GREMERET HENRI
IPC: A63C11/10
Filed: 1968-12-31
Abstract: 1,222,741. Endless track vehicles. H. GREMERET. 31 Dec., 1968 [9 Jan., 1968; 6 Dec., 1968], No. 61933/68. Heading B7H. A tractor for a skier comprises an endless track belt 51, a foldable rigid frame rail on which are mounted a plurality of lower belt run engaging rollers, a support for an opposed pair of footrests and at one end an adjustable belt tensioning means carrying a track guide pulley and at its other end a pair of external radial flanges 13, 15 of an integral engine transmission assembly which drives the track belt 51 through a pulley 20 disposed between and supported from the flanges 13, 15. The pulley 20 is mounted on three rolling bearings 19, which are mounted on spacer rods 14 between the flanges 13 and 15 and a further flange 16, and includes a central sprocket 21 which is disposed between the endless belt engaging flanges 20<SP>1</SP> of the pulley and is driven from the I.C. engine through a speed reducing means 10, a first chain reduction gear (Fig. 16, not shown) and a cross-shaft, a sprocket 29 on the cross-shaft and a chain 30. The track belt tension is adjustable by a turnbuckle arrangement 7 and the heights of the footrests are individually adjustable. The tractor may be stabilized by stabilizers 62<SP>2</SP> mounted on arms pivoted to the footrests and resiliently urged downwardly. In a modification (Fig. 17, not shown) the power unit is at the middle of the tractor and the frame rail is in two parts pivotable thereon.
Patent GB-687688-A (GB)
Abstract: 687,688. Spinning spindle apparatus. HISPANO SUIZA (SUISSE), SOC. ANON. Jan. 15, 1951 [Jan. 31, 1950], No. 1103/51. Class 120(ii) [Also in Group XXIV] In a spinning machine, the bobbin 10 is driven by worm gearing 3, 7 through a centrifugal clutch comprising segmental blocks 13 which rotate with the bobbin and which move radially outwards under centrifugal action into contact with a cup member 12 rotating with the worm 7, so that the clutch disengages when the bobbin is braked, auxiliary friction means being provided for restarting the bobbin when the brake is released. As shown in Fig. 1, the bobbin 10 is loose on a spindle 9 coupled to the worm 7, the member 12 being secured to the spindle and the blocks 13 being constrained to rotate with the bobbin hub 10a by radial projections 14 on the latter. The blocks 13 are normally retracted by a spring ring 15 engaging grooves in the blocks and notches in the projections 14. The bobbin is adapted to be braked by shoes on a lever 16 which simultaneously lift the bobbin and, through the ring 15, the blocks 13. On release of the brake, the bobbin and blocks drop back and the friction between the blocks and the base of the cup 12 serves to initiate rotation of the bobbin. The upper bearing 8 of the spindle 9 is supported by a rubber ring 11 and is lubricated by a felt ring 28 and wick 26 fed with oil flung from wheel 3. As shown in Fig. 5, cup 12 is rigid with worm 7 and the pair of blocks 13 rotate with spindle 9, rigid with the bobbin, the spindle having a flattened end 9b engaging between the blocks and having also a wedge part 9c whereby, as the spindle drops on release of the brake, the blocks 13 are moved outwards. In another form, wherein the bobbin is not lifted during braking, the blocks are constantly urged outwards by a spring ring so as to initiate the rotation of the bobbin on release of the brake.
Patent GB-2001807-A (GB)
Title: Two-piece electrical connector for cathodic protection systems
IPC: H01R13/02
Filed: 1978-06-28
Abstract: The cable connector has two parts (1,2) and to prevent each is formed of a valve metal (viz. titanium, zirconium, niobium, hafnium, tantalum), preferably niobium, the electrical contact surfaces (5, 11) of which have a coating thereon of a platinum group metal, alloy or oxide, the connection being affected by contact with seawater. The two parts may be an interferences fit as shown, or may have spade portions which are bolted together (Figure 2 not shown). <IMAGE>
Patent GB-2001747-A (GB)
Title: Gas-fired appliance
IPC: F23N5/10
Filed: 1978-08-04
Abstract: The gas supply to a burner of an appliance, such as a domestic cooker, is controlled by a valve having its valve member actuated by electrically controlled means which may be operated by a timing device and allow the valve to be at any desired position on the appliance, rather than necessarily being at the timing device. Preferably there are primary and secondary electrically controlled means, 6, 8 conveniently comprising solenoids, the primary means 6 operating for a limited period sufficient to open the valve member 14 for ignition of the burner 1, and the secondary means 8, which may be energised by an electric current produced by a flame sensing device 7 at the burner, subsequently operating to retain the valve member 14 open. Initiation of operation of the primary means 6 and termination of the operation of the secondary means 8 may be selectively controlled by the timing device. <IMAGE>
Patent GB-2007355-A (GB)
Title: Apparatus for transmitting electrical signals
IPC: H04B10/00
Filed: 1978-10-25
Abstract: An apparatus for transmitting electrical signals from an angularly movable part to a fixed part of a machine, includes a plurality of radiation transmitting devices (11) on the movable part and a plurality of radiation sensing devices (15) on the fixed part arranged so that at least one of the radiation sensitive devices is illuminated by at least one of the radiation transmitting devices in all angular positions of the angularly movable part. The radiation transmitting devices are energised by an f.m. modulator (12) and the outputs of all the radiation sensitive devices are summed by a summing amplifier (16) and demodulated by a demodulator (17) to reconstruct the original input signal to the modulator. The apparatus is of utility in situations where the mounting of the angularly movable part is such that conventional signal transmitting means such as slip rings are impracticable. <IMAGE>
Patent GB-2035524-A (GB)
Title: Flame spraying refractory material
IPC: B05B7/14
Filed: 1978-11-24
Abstract: A method and apparatus for flame spraying refractory material to repair cavities 19 in refractory walls. The method comprises supplying to a lance a mixture of one or more finely divided refractory oxides and one or more finely divided metal or metalloid elements which are easily oxidisable to refractory oxides dispersed in a carrier gas itself incapable of supporting oxidisation of said elements, and supplying oxygen to the lance adjacent its outlet. The apparatus comprises a mixture store 8 pressurised by an airline 7, an air driven screw feed 5, and an air transporter line 10 for supplying mixture in suspension to a lance manifold 17. Oxygen is fed to the lance by a feed tube 16. <IMAGE>
Patent GB-2012272-A (GB)
Title: N-(Tetrazol-5-yl) prostaglandin carboxamides
IPC: A61P43/00
Filed: 1979-01-15
Abstract: The invention provides compounds of the formula   <IMAGE>  or pharmacologically acceptable salts thereof, wherein:   A is ethylene of cis-vinylene;   B is ethylene trans-vinylene;   Y is hydrogen or hydroxy;   G is CH2Ar, CH2OAr or CRZ(CH2)3CH3; Ar is phenyl, fluorophenyl, chlorophenyl, methylphenyl, ethylphenyl, methoxyphenyl, ethoxyphenyl, biphenyl or trifluoromethylphenyl;   R is hydrogen or methyl; and   Z is hydrogen or methyl. These compounds can be divided into three classes, each class having different and selective biological activities depending on the substituent in the bottom side chain. Compounds having a C-16 phenyl or substituted phenyl substituent have antiulcer activity, compounds having a C-16 phenoxy or substituted phenoxy substituent have fertility control activity and compounds having a C-15 n-pentyl, 1-methylpentyl, or 1,1-dimethylpentenyl substituent have bronchodilator or fertility control activity.
Patent GB-2010870-A (GB)
Title: Supported Ziegler catalyst components admixed with silica
IPC: C08F10/00
Filed: 1979-01-16
Abstract: A solid supported Ziegler catalyst component and is admixed with particulate silica as moderator of the catalyst activity, wherein the quantity of silica is 10-95 wt % of the mixture. Supported Ziegler catalyst component comprises a transition metal compound chemically reacted with a support having surface reactive groups, eg magnesium oxide, calcium phosphate, alumina, carbon black or silica.
Patent GB-2014505-A (GB)
Title: Method and battery mould for the production of precast reinforced concrete units on site
IPC: B28B7/24
Filed: 1979-02-05
Abstract: For the purpose of facilitating work and saving costs a battery mould (11) is proposed for the production of precast reinforced concrete units for use in the erection of buildings, the battery mould being transported on a vehicle 22. The battery mould is at least partly assembled ready for the concrete pouring complete at a remote workshop together with the reinforcements (17), and is transported by means of the vehicle to the site where, if necessary after completing assembly of the battery the concrete is poured. <IMAGE>
Patent GB-2016436-A (GB)
Title: Reduction in the transpiration of crop plants
IPC: A01N43/58
Filed: 1979-02-09
Abstract: The transpiration of water in Indian corn, sorghum and millet plants, which assists in permitting growth of these plants in locations subject to perennial lack of water or temporary drought, is reduced by treating the plants or the soil in which the plants have been sown or are to be sown with a pyridazone derivative of the general formula   <IMAGE> where R denotes unsubstituted phenyl, phenyl mono- or poly-substituted by halogen or alkyl of 1 to 3 carbon atoms, unsubstituted cyclohexyl, or cyclohexyl mono- or poly-substituted by halogen or alkyl of 1 to 3 carbon atoms and R<1> denotes chlorine or bromine.
Patent GB-2015748-A (GB)
Title: Method and device for enhancing the sensitivity of a voltammeter or a polarograph
IPC: G01N27/416
Filed: 1979-02-12
Abstract: In a voltammeter or polarograph which comprises a closed space for receiving the liquid to be measured, a working electrode (7) and a counter- electrode (8) in said space, and means (5) for bringing the liquid into motion, improved sensitivity is obtained by, firstly, positioning the working electrode in a relatively narrow section of the closed space and essentially in the same plane as the wall surface thereof, and, secondly, by bringing the liquid into such motion at the position of said working electrode, that turbulence is produced by means of friction against the wall. Preferably, a reference electrode (9) is positioned at a location where the liquid is in no or only slight motion. <IMAGE>
Patent GB-2043238-A (GB)
Title: Apparatus for curing and storing concrete test cubes
IPC: G01N33/38
Filed: 1979-02-14
Abstract: Apparatus for curing and storing concrete test cubes comprises a tank (1) adapted to hold water and having a perforate false bottom (2) for supporting concrete test cubes. A gas burner, preferably adapted to operate on bottled gas, is mounted beneath the tank for heating water in the tank and a thermostat is provided in the tank for controlling the gas burner so that water in the tank (1) is maintained at a predetermined temperature. <IMAGE>
Patent GB-2016100-A (GB)
Title: Trailer relay valve for fluid pressure braking system
IPC: B60T17/18
Filed: 1979-02-20
Abstract: A trailer relay emergency valve for the braking system of a tractor/ trailer combination is constructed such that the area of the relay piston which is subject to output pressure, (in chamber 8) is divided into two portions respectively subject to the pressures in chambers 14 and 15, communication with chamber 14 being via a throttle 16 or a "leaky" seal 11 to delay the effect of that portion such as to improve the response of the valve and connected brake actuators to rapidly rising brake control pressure (in chamber 6). The valve further comprises a service or control input port 7, brake actuator ports 9, 10, a trailer pressure fluid reservoir port 33 and an emergency pressure port 20. <IMAGE>
Patent GB-2015199-A (GB)
Title: Automatic control of seed planters
IPC: G05B19/37
Filed: 1979-02-22
Abstract: The invention relates to apparatus for the automatic creation of tramlines (i.e. clearly visible tracks) in crop areas during seeding for use with a seed drill. Control box (1) includes a programmable divide-by-N counter which receives a signal each time the coulters of the seed drill are raised and lowered rotating shaft (3) and actuating switch (6). When the number of signals received by the counter equal the number preset into the counter, a solenoid (9) is activated which serves to operate a shutter (14) which closes off the seed supply to the coulters positioned behind the wheels of the tractor operating the seed drill, thus creating unseeded tracks. <IMAGE>
Patent GB-2046273-A (GB)
Title: Stabiliser for polymers
IPC: C08K5/17
Filed: 1979-03-27
Abstract: A polymer stabiliser composition comprising a bis-(2,4-dialkyl- phenyl) pentaerythritol diphosphite and a minor proportion of triisopro- panolamine is provided. The triiso- propanolamine is present to reduce or prevent the stabiliser composition from absorbing moisture prior to the addition of the composition to a polymer such as a vinyl chloride polymer, an olefin polymer or a polycarbonate.
Patent GB-2020127-A (GB)
Title: Improvements in or relating to systems for recording traffic accidents of motor vehicles
IPC: G01D9/38
Filed: 1979-04-27
Abstract: A system for recording a traffic accident of a motor vehicle comprises an analog accelerometer 1 sensitive to acceleration in the direction of travel of the vehicle, and a timer 3 which causes measured values to be supplied via an analog-digital converter 2 at a predefined timing to a shift register 4. The shift register 4 has a number of memory locations required for the time dependent representation of a distance which is relevant to the traffic accident. Further entries into the shift register 4 may be prevented when the speed and acceleration of the vehicle become zero as detected by a microprocessor 6. Because the system does not depend on the road wheels of the vehicle for its measurement of acceleration, locking of the road wheels during an accident does not cause loss of useful information. <IMAGE>
Patent GB-2021905-A (GB)
Title: Display systems and control systems therefor
IPC: G09G5/20
Filed: 1979-05-12
Abstract: In a cathode-ray tube or other display system, signals defining the coordinates xpy'q of the element of the screen on which the cathode-ray beam is incident in its raster scan are supplied to a comparator together with signals defining the coordinates XY of a series of points defining the image 14 to be displayed. The comparator derives a brightness-weighting signal B totaller in respect of each element in accordance with the proximity of that element to those of the points defining the image 14 within a predetermined proximity a. The predetermined proximity may be equal to the separation between the points defining the image 14. <IMAGE>
Patent GB-2020132-A (GB)
Title: An arrangement for monitoring the performance of a digital transmission system
IPC: H04L1/20
Filed: 1979-06-15
Abstract: A monitor for monitoring the performance of a digital transmission system has three level sensors 14, 15, 16 for sensing at decision instants the level of a signal derived from a transmitted signal. A first of the level sensors 14 has its threshold set at a centre decision level with respect to the eye diagram amplitude, a second 15 has its threshold set near the upper level 38, and the third 16 has its threshold set near the lower level 39. The outputs from the level sensors 14, 15, 16 are connected to logic circuitry which is arranged to energise an alarm 28 should the upper or lower eye amplitude level be between the centre, and upper or lower thresholds. <IMAGE>