baber/WOPTO huggingface dataset:
Patent GB-1363063-A (GB)
Title: Interface enhancement applied to envaporation of liquids
IPC: C02F1/04
Filed: 1971-07-06
Abstract: 1363063 Enhanced evaporation of liquids; desalination of water H H SEPHTON 6 July 1971 [6 July 1970] 31746/71 Heading BIB Liquid is evaporated from a solution, e.g. sea water, by adding a foaming agent (surfactant) to it, feeding the treated solution, with reduction of pressure, into a heated flow channel so that foaming solution flows through the channel. The surfactant, which is added in relatively small amount, e.g. 50 ppm, may be anionic, cationic or non-ionic. Representative surfactants are sodium oleate, guanidine and polyethylene glycol. Graphite, powered metals and clays may also be used. The evaporator shown comprises vertical tubes 22 in a jacket 23 which is supplied with steam through inlet 24. The treated solution is fed through conduit 28 into vessel 29 whence it passes with pressure-drop through holes or nozzles in plate 30 so that foaming solution is distributed to the lower ends of tubes 22. Owing to vaporization, the solution sweeps up the tubes, for instance as rising films. The vapour is disengaged from the residual solution in vessel 33, and is withdrawn through outlet 34. Two or more evaporators may be operated in multiple-effect, the first effect being supplied with steam or with compressed process vapour. Metal evaporator tubes having a double-fluted or spiral-corrugated wall surface are advantageously used. A falling-film type evaporator comprising vertical tubes with helical inserts may also be employed to evaporate the foaming solution. Alternatively, the solution may be sprayed over horizontal tubes or passed through a platetype evaporator. The foaming process may be utilized in generating steam, e.g. in a nuclear reactor.
Patent GB-714908-A (GB)
Title: Improvements in or relating to pulse signal apparatus and systems
IPC: H04J3/00
Filed: 1952-12-15
Abstract: 714,908. Multiplex pulse signalling. SOC. FRANCAISE RADIO-ELECTRIQUE. Dec. 15, 1952 [Dec. 20, 1951], No. 31781/52. Class 40 (5) Relates to circuits for permuting the order of groups of pulses, comprising delay lines, gate circuits and a local source of pulses whose period is a multiple of that of the input pulses. the circuits being provided for secrecy, for examrle, in a multichannel pulse communication system. In one embodiment, in which each successive group of four pulses is permuted in the same order, the incoming pulses from source M, Fig. 2, and having a recurrence period T are applied to a delay line L0, having tappings a, b, c d spaced a period T apart and terminated at R. The tappings are connected respectively to gate circuits G4 ... G1, controlled bv pulses from the tappings e, f, g, h, of a delay line L1, which are also spaced a period T anart. Line L1 is supplied from source S with pulses having a recurrence period of 4T and is terminated by a load R. By connecting the tappings e, f, g, h, through isolating rectifiers D, to selected gate circuits G1 ... G4, the outputs of which are connected in parallel, the order of each group of four input pulses can be permuted in any desired way. As shown input pulses 1, 2, 3, 4 appear at the output of the gate circuits in the order 4, 2, 3, 1. Alternatively, the connections between the gates G1 ... G4 and the tappings a ... d on line L0 may be changed to vary the permutation, Fig. 1 (not shown). In order to increase the number of pulses permuted per cycle further delay lines and/or gating circuits may be introduced. Thus the gating circuits G1 .. G4, Fig. 3, are under the control of four delay lines L1<SP>1</SP> ... L1<SP>4</SP> which are fed in succession with pulses from the tappings r, s, t, u on a further line L2. The latter are spaced apart by a period 4T and supplied from source S' with pulses having a recurrence period of 16T. As a result, each group of sixteen pulses from source M is similarly permuted in an order determined by the connections from the tappings el ... h1, e2 ... h2, e3 ... h3, e4 ... h4 on lines L 1 1 ... L 1 4 respectively to the gate circuits G1 ... G4. Other alternative arrangements are described including a generalized one in which input pulses having a cycle of repetition mT are permuted into output pulses having a repetition cycle of mpT, where p is any integer, Fig. 5 (not shown).
Patent GB-1275519-A (GB)
Title: Improvements in or relating to winding strip into coils
IPC: B21C47/26
Filed: 1970-07-01
Abstract: 1275519 Winding and reeling; making coils ANO-COIL Ltd 1 July 1970 [11 July 1969] 31788/70 Headings B3A and B3E [Also in Division B8] A method of securing together adjacent windings at the ends of a coil 26 of strip e.g. an electrical coil, during the winding of the coil on to a mandrel 15 comprises feeding a length of adhesive tape 33, having a tacking strip 36, which has adhesive on both sides and is releasably supported on a cover strip 34 which is wider than the tacking strip, to the strip 20 so that the free tacky surface of the tape is pressed into contact with the strip, and the cover strip 34 bent in a direction longitudinally of the strip at a station at or upstream of a point where there is a change in the path of the strip feed to the mandrel so that the cover strip continues to follow the original path. At the start and near the end of the winding of the coils 26, a piece of the adhesive tape 33 is pushed forward in the guide 30 by a needle 50 piercing the projecting cover strip 37 and moving the tape longitudinally. The guide 30 has a stepped cross-section, Fig. 3, so that the tacking strip 36 can run contact free in a channel 40, be cut to the required length by a knife 58 and applied to the strip. The cut tape travels with the strip under rollers 62 and at the same time a web 68 forces the projecting cover strip 37 upwards, Fig. 4, to form an angle section. The strip then travels round a deflecting edge 25 downwardly to the mandrel 15 and in doing so the tacking strip 36 is drawn away from the cover strip 34 which proceeds straight ahead because of its longitudinal stiffness.
Patent GB-1154097-A (GB)
Title: Improvements relating to Safety Razors.
Inventor: POMFRET EDWARD ERIC
IPC: B26B21/18
Filed: 1967-07-11
Abstract: 1,154,097. Razors. GILLETTE INDUSTRIES Ltd. 21 May, 1968 [11 July, 1967], No. 31868/67. Heading B4B. A safety razor comprises three separable parts, namely a handle, a guard and a cap, the handle including a peg 33, Fig. 3, which is surrounded by a helical coil compression spring 35 and has a non-circular head, the head being adapted to pass through an aperture 24, Fig. 5, in the guard and a registering non-circular aperture 13, 14, Fig. 4, in the cap, partial rotation of the handle e.g. a quarter turn in either direction, when the parts have been assembled serving to lock the parts against axial separation, the spring then urging the guard towards the cap so as to clamp a blade inserted therebetween. Preferably, the handle, the guard and the cap are constituted by mouldings of synthetic resin materials. The handle comprises a hand grip portion 31 having at its upper end a spigot 32 adapted to fit within a sleeve 25 of the guard. A separately formed plastics peg 33 is a force fit in a bore formed in the portion 31 and is formed at its upper end with a head constituted by two diametrically opposite projecting wings 34. The cap has lugs 11 adapted to engage recesses formed at the corners of the blade and two spigots 12 to pass through apertures in the blade. The cap, which is formed with aperture 13, 14, is also formed with sloped portions 15 and recesses 16. The guard has teeth 21, recesses 22 to receive the cap lugs 11, sockets 23 to receive the cap spigots 12, an aperture 24 of double keyhole form, and a sleeve 25 which is formed with guide ribs 26.
Patent GB-868305-A (GB)
Title: Improvements in or relating to automatic control systems
Inventor: FULLER RAYMOND ALAN
IPC: H02P23/00
Filed: 1957-10-11
Abstract: 868,305. Automatic speed-control systems. DAVEY, PAXMAN & CO. Ltd., and ULTRA ELECTRONICS Ltd. Dec. 23, 1958 [Oct. 11, 1957], No. 31873/57. Class 38 (4). In a control system for a prime mover driving a generator, the fuel supply to the prime mover is controlled by means responsive to the speed and load of the generator so as to maintain the speed constant. A fuel supply valve of a diesel engine driving an alternator is controlled by an actuator 13, Fig. 2. The alternator supplies power to a load through cables 18-20. The voltage and current, from transformers 15-17, is fed to watt-meters 21-23 having a direct voltage output proportional to the real power in each phase. These direct voltages are summated in a circuit 24 and a resultant signal proportional to total power is fed to an amplifier 26 via a resistor 25 for adjusting the constant of proportionality and thereby control the load/speed characteristic of the generator. A direct voltage signal, proportional to the deviation of the speed of the engine from a datum value, is derived from a frequency discriminator 27, connected to cables 19, 20 and is fed to the amplifier via a resistor 28 for adjusting the constant of proportionality. The two direct voltage signals are summated in the amplifier 26 and the amplified direct voltage signal is fed to the actuator 13 in a sense such as to maintain constant the speed of the engine. In a modification, Fig. 3, for load-sharing between similar alternator sets, the outputs of summating circuits 30, 36 are interconnected by a link AA<SP>1</SP> and variable resistors 33, 39 are adjusted to control the proportion of the output of the summating circuit associated with each amplifier which is fed into the other amplifier. A link BB<SP>1</SP> applies stabilizing feed-back between amplifiers 34, 40.
Patent GB-251206-A (GB)
Title: Improvements in or relating to tires for vehicles
IPC: B60C15/00
Filed: 1925-12-17
Abstract: 251,206. Rushen, P. C., (Overseas Wire Cord Co.). Dec. 17, 1925. Jackets and covers. -A tyre foundation is formed by closely arranged, radially disposed, t.-ire strands 1 and a textile reinforcement 4, both these parts extending around the bead cores 2 and being embedded in the rubber body 3. The part 4 is spaced from the strain - resisting foundation 1 and may be arranged on the inside or outside thereof.
Patent GB-714407-A (GB)
Title: Governors for automatic opening control of parachutes
Inventor: HEINRICH HELMUT GUSTAV
IPC: B64D17/00
Filed: 1952-12-17
Abstract: 714,407. Parachutes. PIONEER PARACHUTE CO., Inc. Dec. 17, 1952, No. 32020/52. Class 4 A parachute comprises in combination with a canopy and load suspension lines extending downwardly from the skirt of said canopy, automatic opening control means including a reefing line extending around said skirt wherein holding means actuated by one of the suspension lines, and responsive to the tension applied to that suspension line, co-operate with said reefing line to oppose unreefing of the canopy when the pull due to the load exceeds a predetermined value. The parachute comprises a canopy 2 and load suspending lines 3 connected to a common securing means 4 to which the load 5 is attached. The lines 3 are each attached to a guide ring 8 and through the rings is passed a reefing line 6 held taut as shown in Fig. 1 when the parachute is launched, one end of the line 6 being secured to a governor device 9 and the other end being passed through the device for attachment to the securing means 4. The device 9 consists of a cylindrical sleeve portion 10 to which a line 3a from the canopy is attached at 11 and the one end of the line 6 is attached at 12, the other end passing over or being looped round a pin 13. The sleeve 10 is formed interiorly with a tapered bore 19 which co-operates with a tapering surface 15 on the exterior of the head 18 of a tubular member 16. The member 16 is fast with a further sleeve 17 formed at its upper end with a flanged collar 25 and at its lower end with ears 21. A spring 26 is located between the collar 25 and an end cup 27 screwed to the lower end of the portion 10 and the ears 21 are attached at 22 to lines 3b, 3c attached to the securing means 4. The lower end 6a of the line 6 is coiled within a fabric sleeve or pocket 29 from which it is withdrawn by the weight of the load. The tension of the spring 26 is so proportioned with respect to the ratio of pull of the load 5 to the drag of the canopy that the pull on the lines 3b, 3c is sufficient to overcome the tension of the spring and bring the faces 15 and 19 into register to cause contraction of the head 18 to grip the line 6. When the ratio is reduced to a predetermined degree the spring separates the faces 15 and 19 and allows the line 6 previously withdrawn from the sleeve 29 to run'free so that the canopy is free to expand. The device 9 may be mounted in a position inverted to that shown and the line 6 may be wound on a drum that is braked by relative displacement of the movable elements of the governor device. A plurality of reefing lines. each with a governor device may be used. Specification 620.943 is referred to.
Patent GB-730232-A (GB)
Title: Improvements in or relating to thermostatically controlled valves
Inventor: ROBINSON HENRY NORMAN
IPC: G05D23/02
Filed: 1952-12-17
Abstract: 730,232. Thermally-actuated valves. MAIN, Ltd., R. & A. Dec. 17, 1953 [Dec. 17, 1952], No. 32024/52. Class 135. In a thermostatic valve in. which the stem 21 of a poppet valve 26 abuts against the end of a thermal element, e.g. the rod 19, and moves in a casing guide 16, the stem is spaced from the guide for the greater part of its length and has an enlargement 22 with an easy sliding fit in the guide to permit rocking of the stem. Specification 572,649 is referred to.
Patent GB-618163-A (GB)
Title: Improvements in or relating to flame sensitive devices
IPC: F23N5/14
Filed: 1946-10-29
Abstract: A flame-sensitive resistor consists of a nickel iron alloy wire with a layer of chromium integrally diffused into the surface, thus providing a protection for the wire from corrosion in sulphurous atmospheres without substantially affecting its resistance properties.  The protective coating is applied by a process known as chromizing, whereby the coil is packed with a mixture of ferrochrome and 60 mesh aluminia and heated in a non-oxidising atmosphere for eight hours at 1000 DEG C.  The resistor is exposed to the flame of a gaseous fuel, and by virtue of its large temperature-resistance co-efficient can be made to operate a valve to cut off the supply of fuel when the flame is extinguished, and its resistance thereby drops.
Patent GB-189467-A (GB)
Title: Improvements in or relating to carburettors for internal-combustion engines
IPC: F02M9/02
Filed: 1922-11-23
Abstract: 189,467. Soc. G. Longuemare et Cie. Nov. 24, 1921, [Convention date]. Spray carburettors. -Two nozzles are employed, one for slow running, the other for normal a n d high speeds. The slow speed nozzle 36 is situated in a small chamber 6 with a constricted air inlet 39, the mixture passing to the outlet 2 through a channel 7<1> formed in the bottom face of a piston throttle-valve 7, which in its lower positions masks, by a cavity 40, the main nozzle 22. The throttle is actuated bv a cable 16 and is loaded bv a spring 14. The orifice of the nozzle 36 is below the air stream of the nozzle 22, which, when the throttle is fully open, extends into the centre of its air stream. The nozzle bodies are carried by a part 35 pro. jecting from the float chamber and secured to the carburettor body 1 by a bolt 37.
Patent GB-322224-A (GB)
IPC: E01F13/12
Abstract: 322,224. Greene, A. C. Aug. 31, 1928. Chevaux de frise and like means for stopping motor vehicles. A spiked mat or band for use in arresting the movements of motor vehicles consists of a mat of fabric, paper. or other suitable material formed in two or more thicknesses, the outer thickness or thicknesses being provided with upstanding spikes whereby the pneumatic tyres of road vehicles are punctured. The spikes may be formed of ordinary screws d with chiselshaped ends secured to discs e, or may be formed as hollow cylinders h integral with heads e. The heads are secured between the backing thicknesses with the points protruding through the other thickness of material, or both thicknesses of material may be provided with projecting spikes and in the latter form an intermediate thickness l may be used between the enlarged heads. The thicknesses may be secured together between the spikes. The mats may he made in single long lengths or in short lengths joined together by rupturable hooks, clips, or loops so that the entangled mat is separated from the others, and spiked mats may be alternated with plain mats in order that the tyres on one side of the vehicles only may be punctured.
Patent GB-646727-A (GB)
Title: Improvements in toys and race games
Inventor: ROSE ALFRED GERMAN
IPC: A63F9/14
Filed: 1947-12-08
Abstract: 646,727. Toys and race games. NICHOLLS, K. H., and ROSE BROS. (GAINSBOROUGH), Ltd. Dec. 8, 1947, No. 32268. [Classes 132 (ii) and 132 (iii)] A toy figure capable of unaided progression by a rocking motion on an inclined track is provided with a controlling surface adapted to be engaged by a projection on a limb member of said figure during rocking so as to interfere with the free oscillation of the figure during progression, and means for varying the height of the controlling surface relatively to the track so as to vary the periodicity of the oscillation of said figure. A plurality of such tracks may be used, so constituting a race game, each having a controlling surface which may be independently variable. Toy horses 11 rock down an inclined track 12 formed with a series of narrow slots 13 for the passage of blade-like projections 14 on the horses 11. Rotatable shafts, of which the surface has one or more longitudinal flats or.depressions, are mounted, one beneath each slot, on the end frames 16 and 17 which support the track. Pulleys 21 of different diameters are provided on the shafts and a rubber driving belt is threaded round these, as shown in Figure 3, so that they may be moved simultaneously but to different extents by the crank 27. The controlling surfaces on the shafts thus vary the rate of descent of the different horses. The horses are started simultaneously by a lever 28 which engages their rear limbs. In another arrangement the controlling surfaces may be endless bands with protuberances, the bands being mounted on pulleys so as to be differentially adjustable somewhat as described above. The Provisional Specification also describes the provision of stops on the lowermost tips of the blade-like projections to prevent them from swinging out of the slots. These may be variable in length so as to vary the speeds of the figures still further. Specification 645,863 is referred to.
Patent GB-321325-A (GB)
Title: Improvements in ceiling, walls, floors, roofs, and like structures
IPC: E04C2/08
Filed: 1928-11-06
Abstract: 321,325. Tetlow, C. E. Nov. 6, 1028. Sheet-metal slabs and tiles.-Plain or embassed metal sheets flanged on all edges are bolted to girder webs G and bars forming a supporting framework in the construction of ceilings, floors, walls, and roofs. The sheets are preferably made of rustless steel, aluminium, or other non-corrodible metal.
Patent GB-861573-A (GB)
Title: A new derivative of toluene-3:4-dithiol and methods of preparation and use thereof
IPC: G01N31/22
Filed: 1956-03-22
Abstract: The invention comprises S-dibenzoyltoluene-3,4-dithiol which is made by treating dithiol in caustic soda solution with benzoyl chloride at 0 DEG  C. in an inert gas atmosphere.  From the above dibenzoate dithiol may be liberated and used to detect and estimate metals with or without the addition of hydrogen sulphide.ALSO:The invention comprises S-dibenzoytloluene-3,4-dithiol from which dithiol may be liberated for use in the detection, estimation, separation and purification of metals and their compounds.  In aqueous solution dithiol forms highly coloured complexes with thiophilic metals. Liberation is effected by treatment with alcoholic potash and standard solutions for volumetric analysis may be prepared.  The use of the dibenzoate as a source of dithiol has the advantage that reactions may be effected in acid and alkaline media.  Dithiol also aids the coagulation of precipitated metal sulphides and sulphur and may thus be used in conjunction with hydrogen sulphide as an aid to coagulation.  Precipitates are also obtained from solutions of metal compounds in aqueous pyridine.  Complexes of the following metals are described:-palladium (ii), tellurium, gold, tungsten (vi), rhenium (vii), osmium, rhodium, arsenic, iridium, ruthenium, germanium, copper (i) and (ii), mercury, silver, antimony, tin, molybdenum, platinum, bismuth, cobalt, lead, cadmium, thallium, nickel, zinc, iron (ii), gallium, indium, manganese and vanadium. Examples illustrate detection, estimation, separation and purification processes applied to certain of the above metals and their compounds and the purification of sodium chloride from potassium compounds, magnesium sulphate from heavy metals, bismuth chloride from tellurium compounds and the removal of iron, nickel, copper and cobalt compounds from sodium or potassium carbonates, barium, sodium or potassium hydroxides and di- or tri-sodium or potassium phosphates.ALSO:S - Dibenzoyltoluene - 3,4 - dithiol, from which toluene-3,4-dithiol may be liberated, is used as a dressing for ores prior to flotation.
Patent GB-846898-A (GB)
Title: Improvements in or relating to electrion lenses
Inventor: GABOR DENNIS
IPC: H01J31/12
Filed: 1956-10-25
Abstract: 846,898. Electron lenses. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Oct. 17, 1957 [Oct. 25, 1956], No. 32585/56. Class 39(1). In an electrostatic lens with a U-shaped optic axis for receiving a beam deflected about the centre of deflection system 16, Fig. 1, and returning it in a plane parallel to the incidence plane which consists of a trough shaped repeller 15, a central spine 14 and two flanking electrodes 13, (a) the floor of the repeller trough is convex towards the beam and the lower edge of the spine is similarly curved to increase the angle of deflection, (b) the side walls of the repeller trough are inwardly curved and (c) the cross-section of the emergent aperture is shaped in such a way that the size of the cross-section at the point of emergence of a deflected ray corresponds to the size of the cross-section of the incident aperture at the point of incidence. Measures (b) and (c) are to prevent distortion of the emergent rays from true planarity. The repeller 15 may be slightly off-set relative to the other electrodes to prevent the beam direction from being reversed through more than 180 degrees. Suitable relative lens dimensions are given. As shown the edges of the trough and the flanking electrode on one side of the lens are curved while on the other side they are straight. The lens is described as applicable to the " flat " cathoderay tube of Specification 739,496. Specification 824,648 also is referred to.
Patent GB-220541-A (GB)
Title: Improvements in and relating to slabs for walls
IPC: E04C2/04
Filed: 1923-12-31
Abstract: 220,541. Birkhotz, J. A. Dec. 31, 1923. Slabs, special shapes of.- Slabs for walls are formed with marginal ribs 4, 5 along all four sides, and also with ribs 7 of a less thickness than the marginal ribs intermediate of the longitudinal edges, and a reinforcement 8 provided in the slab extends into the longitudinal marginal ribs. Certain of the longitudinal edges are provided with registering grooves 19 for the reception of a key 20. A corner slab is formed with only one longitudinal marginal rib, the ends of the traverse ribs being cut away, and the marginal edges are provided with holes 21 to receive bolts 22. The reinforcing-member 8 is of wire mesh, and additional reinforcing-rods 9 may be disposed in the ribs 4, 5, 7.