baber/WOPTO huggingface dataset:
Patent GB-981266-A (GB)
Title: Fuel cell system
IPC: H01M8/00
Filed: 1963-02-28
Abstract: 981,266. Fuel cells. UNITED AIRCRAFT CORPORATION. Feb. 28, 1963 [Feb. 28, 1962], No. 8046/63. Heading H1B. To prevent the pressure of the electrolyte rising on rise in temperature, one of the pair of electrodes of a fuel cell mounted in a pressurized container comprises a frame connected to the active portion by a flexible diaphragm so that this electrode can move relative to the other when the electrolyte between the electrodes expands. Each of the two fuel cells 14, 16 mounted in pressurized container 2 consists of two hollow electrodes 18, 20 separated by a space 22 filled with electrolyte. Each electrode comprises a porous plate 24 spaced from a non. porous plate 26 except at its periphery wher they are brazed together. Attached, to the lower electrode 20 is an annulus 34 terminating in a rigid ring 36. Attached to the upper electrode is a flexible diaphragm 38 terminating in a rigid ring 40. An insulating seal 42 is placed between the electrodes. The stack of cells is compressed by bolts 48. The annulus 34 of electrode 20 may be replaced by a flexible diaphragm. In order that the cells may function most efficiently the quantity of electrolyte is chosen so that the spacing of the electrodes is less than the optimum value when cold but reaches the optimum value at the working temperature.
Patent GB-232937-A (GB)
Title: Device for regulating the drawing-off of gas from gas-producing apparatus
IPC: C10B27/06
Filed: 1925-03-26
Abstract: 232,937. Askania-Werke Akt.-Ges. vorm. Centralwerkstatt-Dessau und C. Bamberg-Friedenau, April 2G, 1924, [Convention date]. Liquid-seal valves.-A liquid-seal valve device for controlling the draw-off from gas-manufacturing plant has the level regulated by a differential pressure controlling device. In the form shown in the Figure, the retort a is connected by a pipe c with an hydraulic main d which has an outlet pipe f and has the liquid level limited by an overflow pipe e. Liquid is supplied to the main through a pipe s provided with two curved outlet branches t, t<1> one leading to the main and the other to waste. Pipes connected to the highest points of the two branches terminate opposite a hinged nozzle o supplied with compressed air and connected to a diaphragm m so that a jet of air can be directed into one or other of the pipes to stop the flow in the corresponding branch. The diaphragm is actuated by the pressures existing in the retort a and heating chamber b transmitted through pipes g, h. In a modification, the branched supply pipe is replaced by a bell arranged over the overflow pipe and adapted to be put under pressure by the air from the jet. The hydraulic main may be closed and the swing- ing jet arranged to control the pressure in the main.
Patent GB-261247-A (GB)
Title: Improvements in or relating to thermostatic controls for heating systems in railway trains and the like
IPC: B61D27/00
Filed: 1926-03-25
Abstract: 261,247. Spencer Thermostat Co., and Spencer, J. A. March 25, 1926. Thermostats.-A thermostatically controlled valve for regulating the passage of fluid through a heating system is provided with a heatsensitive element t constructed to change shape abruptly and a movable stop to adjust the temperature of operation. The de- - vice comprises a casing in two parts 1, 3 screwed together to secure a bimetallic disc 9, and provided with a threaded part 2 for attachment to the heating system. The opposite end 4 is provided with a cap 12 having holes 13 for the escape of fluid, and is secured to a rod 14, which carries a valve 7 attached to the disc 9. The disc is slightly cupped, so that it snaps abruptly at a predetermined temperature to open or close the valve. The opening of the valve is regulated by rotating the cap 12 and stem. 14, and the cap may be locked by a nut 16. The temperature at which the disc snaps may be varied by adjusting the position of the seating 8 relatively to the valve, and by rotating the cap 12.
Patent GB-395657-A (GB)
Title: Process of decomposing monazite sand and similar ores bearing rare earth metal compounds
IPC: C01F15/00
Filed: 1933-03-17
Abstract: Monazite sand or similar ores bearing rare earth metal compounds are heated with carbon in amount sufficient only for reducing the phosphates to elementary phosphorus in conjunction with calcium, barium, strontium, or magnesium oxide or carbonate in proportions not exceeding three molecules alkaline earth or magnesium oxide per molecule of rare earth metal oxide.  The rare earths are obtained as compounds of a composition analogous to that of calcium aluminate. Reaction may be effected in a rotary drum furnace at about 1500 DEG C., a sintered product being obtained, or in an electric furnace at 1650-1750 DEG  C. in which case the melt produced is granulated in water and then ground.  The product is dissolved in say 30 per cent hydrochloric acid, and thorium or the entire group of the rare earth metals recovered by known methods or by that disclosed in Specification 395,300.  A statement of the prior art relates to reducing the phosphates with carbon in an electric furnace with or without the addition of lime, the carbides obtained being subsequently decomposed by acids; also to reduction in an electric furnace with silica, the silicates obtained being dissolved in hydrochloric acid.  In this latter process, the solution is then evaporated to dryness to precipitate silica, prior to further treatment.
Patent GB-720206-A (GB)
Title: Improvements in and relating to pipe bends
IPC: F16L43/00
Filed: 1952-04-01
Abstract: 720,206. Pipe bends. BARTH, W. April 1, 1952. [April 7, 1951] No. 8284/52. Class 99 (1). A pipe bend adapted to be connected to a pipe 1 of circular crosssection comprises a straight portion 15 the cross-section of which merges gradually from the circular at 2 to the rectangular at 12, and an arcuate portion 5 of rectangular cross-section. The arcuate portion may be connected to a pipe 3 by a similar straight portion 15. The arcuate portion 5 may be provided with concentric partitions 11, the position of which may be determined by consideration of the ratio of the mean radius of each section formed by the' partitions to its radial depth. A ratio which is stated to be favourable as regards pressure losses is 1.85. The ratio should be the same for each section. The arcuate section may also have flat partitions parallel to its flat sides.
Patent GB-1215073-A (GB)
Title: Hydroxy aldehydes and derivatives thereof
Inventor: GWINNER WILHELM VON
IPC: A61K31/045
Filed: 1968-02-20
Abstract: 1,215,073. Hydroxyaldehydes and derivatives thereof. W. VONGWINNER. 20 Feb., 1968 [20 Feb., 1967], No. 8301/68. Heading C2C. Novel 4-hydroxy-2,3-alkenals of the general formula in which R<SP>1</SP> and R<SP>2</SP> are hydrogen, C 1-9  normal alkyl, phenyl or pyridyl, provided that not more than one of R<SP>1</SP> and R<SP>2</SP> is hydrogen, or the alkyl acetal, semicarbazone or N-phenyl hydrazone derivative thereof, are prepared by treating a 4 - hydroxy - 2,3 - alkynal - dialkyl acetal with LiAlH 4  and saponifying the resultant 4- hydroxy-2,3-alkenal-dialkyl acetal having the general formula wherein R is alkyl, with an aqueous solution of a weak acid. The 4-hydroxy-2,3-alkynal-dialkyl acetal may be produced by decomposition of a Grignard reaction product of the general formula wherein X is halogen, with water and said Grignard reaction product may be prepared by treating an aldehyde or ketone of the general formula R<SP>1</SP>R<SP>2</SP>CO, with the Grignard reaction product of propargyl aldehyde dialkyl acetal (prepared by eliminating 2 moles of HBr from 2,3- dibromopropionaldehyde dialkyl acetal) and an alkyl or aryl magnesium halide. Products of the formula are prepared by hydrolysis of the corresponding 4 - bromo - 2,3 - butenal dialkyl acetal, prepared by the action of N-bromosuccinimide on the 2,3-butenal dialkyl acetal, with an aqueous suspension of CaCO 3  and saponifying the product with an aqueous solution of a weak acid. The 2,3-butenal dialkyl acetal is prepared by bromination of a butanol and acetalating the 2-bromo-derivative with an alkanol to form a 2-bromo butanal dialkyl acetal of the general formula and dehydrohalogenating this product. 2,3-Dibromopropionaldehyde is prepared by brominating acrolein.
Patent GB-682981-A (GB)
Title: An improved method for forming packs between the floor and the roof of a mine
IPC: E21F15/06
Filed: 1950-04-03
Abstract: 682.981. Filling goafs &c. in mines. MARKHAM & CO., Ltd., and SPRAGG, H. March 2, 1951 [April 3, 1950], No. 8353/50. Class 85 A method of filling a goaf in a mine extending laterally of a gate comprises feeding the ripping dirt (obtained when driving the gate forward into the cut seam) to a stone crusher, feeding the crushed material to stowing machine and direct- \ ing a stream of crushed material from the stowing machine to the goaf. In longwall mining, Fig. 1, ripping dirt is brought up on the elevator conveyer 15 and falls into a hopper 17 of a portable stone crusher 16, from whence it is conveyed by an upwardly inclined conveyer 19 to a pneumatic stower 21 having a flexible delivery pipe 22. Shuttering 23 may be arranged in the goaf on either side of the gate. When the seam is being cut, the end of the conveyer 15 is swung downwardly so as to deliver the coal on to a gate conveyer 13. In " single unit mining, at least one loading gate 24 and at least one supply gate 25 extend between the cut seam 26 and a cross passage. Ripping dirt from the supply gate 25 fed on to the face conveyer 14 combines with the ripping dirt from the loading gate 24 and the whole is fed by the loading conveyer 28 to the stone crusher 16, located in the cross passage. The crushed stone is either, delivered by wagon 29 or conveyer to the stower conveyer and thence to the pneumatic stower 24 from whence the pipes 22 deliver it behind shuttering. 23. Alternatively, the stone crusher and stower are located in the loading gate. In " double unit " mining, having two supply gates and a single loading gate, the ripping dirt from the supply gates is conveyed to combine with that from the loading gate and the whole carried by the loading conveyer to the stone crusher.
Patent GB-181808-A (GB)
Title: Improvements in and relating to air syringes
IPC: A61C17/022
Filed: 1921-03-17
Abstract: 181,808. Pieper, O. H., and Pieper, A. F. March 17, 1921. Pumps, syringes, and like appliances.-In a hot-air syringe, a bodypiece 1 is drilled at one end to accommodate a sleeve 43 carrying an air-passage member 45 which can be connected to an air supply hose 7. A transverse seating on the body-piece allows a connection to be established with the air-passage 8 in the body-piece, the joint faces being held together by screws 50. The other end of the body-piece 1 is recessed to carry a tubular extension 4 which contains a heating-coil C and on which is mounted a nozzle 6. The air is supplied through passages 34, 35, 36 and is led successively outside and inside the tubes 15, 19, containing the coil, and passes through an apertured washer 26 and into the nozzle. A valve 10 controls the air supply and operates the switch of the heating-coil circuit by means of a plunger 40. The return-wire 52 from the coil, and the arm 38 of the switch are connected to the concentric members 43, 45 carried by the body-piece, which members make connection with the airhcse fittings 53, 54 and electric supply leads A, B, the hand-grip 2 covering the joints and switch. All the electric connections are insulated from the body of the syringe.
Patent GB-874404-A (GB)
Title: Improvements in or relating to jacking devices
Inventor: PRYKE FORDHAM
IPC: B66F3/30
Filed: 1959-03-11
Abstract: 874,404. Hydraulic jacks. PYNFORD Ltd. March 10, 1960 [March 11, 1959], No. 8408/59. Class 78 (3). A jack which lifts or supports a building comprises an outer cylinder A forming a thrust chamber C with an externally threaded cylinder B which forms a second chamber G with a hollow cylinder F carrying a load-engaging plate F<SP>1</SP>. In operation a number of jacks are placed beneath the building and air is fed via F<SP>2</SP>, F3 into chambers G to wedge the jacks against the building, after which liquid is fed into the chamber C of each of the jacks at the points where it is desired to lift the building, thereby lifting cylinder B, and exhausting the air from cylinder G until cylinder B abuts, the plate F<SP>1</SP>, whereafter cylinders B and F move together. To lock these jacks, a stop member E is screwed down the cylinder B until it abuts, and thus transfers the load to, cylinder A. When it is desired to remove a jack the stop ring is first released and air is then pumped into chamber G forcing the liquid out of chamber C. In modifications (not shown) a compression spring is connected between the cylinders B and F to expand the chamber G, or liquid is pumped into chamber G, and chamber C is connected to an air pump or contains a compression spring. In a further modification (Fig. 5) chamber V is connected to a source of constant liquid pressure and chamber W to a source of variable liquid pressure.
Patent GB-293367-A (GB)
Title: Improvements relating to the killing of rats and other vermin
IPC: A01M17/00
Filed: 1927-03-28
Abstract: 293,367. Nilson, F. R. March 28, 1927. Vaporizing by heat; vapours, delivering.-Apparatus for killing rats and other vermin in their burrows or holes comprises a chamber connected at one end directly to the exhaust outlet of an internal-combustion engine and at the other to a hose having a nozzle for insertion in the animals' burrow, means being provided in the chamber for the generation of poisonous fumes. In the form shown in Fig. 1 the tubular chamber a connected to the exhaust pipe of the engine is fitted with an outlet hose b and nozzle c, and with a funnel d charged with sulphur or other chemical and having an outlet d<1> bent in the direction of flow of the gases. In a modification, Fig. 3, the exhaust pipe a passes directly through the chamber f so as to heat the contained' sulphur, and is fitted with branches g, h opening into said chamber so that part of the exhaust gases may be directed therethrough by manipulation of a valve i. A filling aperture j is normally closed by a stopper In a further modification the whole of the gases are passed through the chamber f, the heating pipe being omitted.
Patent GB-512811-A (GB)
Title: Method of and apparatus for use in the heat treatment of metal bands
IPC: B21C47/26
Filed: 1938-03-21
Abstract: 512,811. Heat-treating metal bands. I. G. FARBENINDUSTRIE AKT.-GES. March 21, 1938, No. 8654. Convention date, April 22, 1937. [Class 72] [Also in Group XXII] In the heat treatment of metal bands, the band is wound up into a roll with the interposition of two narrow marginal strips of appreciable thickness and of such a form, e.g., corrugated, as to permit the flow of gas or liquid into the spaces between the individual convolutions of the roll which is then subjected to heat treatment which may be followed by quenching. The metal band A passes over a roller B, brake C and guide D out to a winding drum E. Between the guide D and drum E is located a device F for feeding and positioning the corrugated strips H from two drums G, said device consisting of a shaft a on which are slidably mounted two adjustable brackets b each carrying a guide c for the strip H, a vertically disposed roller d for the edge of the band A and a horizontally disposed roller e which rolls on the band. The drum E which winds the band A and strips H is provided with a slot in which is disposed a shaft g eccentrically mounted at f. Two marginal rings are pushed on the drum before the band is wound and are clamped by the shaft g at a distance from one another corresponding to the width of the band. After the roll has been completed, the clamping pressure is released and the roll with the marginal rings removed from the drum E and placed in the annealing furnace.
Patent GB-550640-A (GB)
Title: Improvements in or relating to hydraulic torque transmitting devices
IPC: F16D33/18
Filed: 1942-06-29
Abstract: 550,640. Hydraulic transmission of power; valves. BORG & BECK CO., Ltd. June 29, 1942, No. 8953. Convention date, Aug. 25, 1941. [Classes 69 (ii) and 135] In a hydraulic torque transmitting device comprising a driving element A, Fig. 1, and driven element B with a sealing device C interposed between them to form a normally closed liquid chamber, a pressure-relieving valve 54, Fig. 2, or 54a, Fig. 5, is provided for relieving pressure in the chamber and the valve is so constructed that wiping movement is developed between the valve and its seat so as to prevent interference with the normal action of the valve by dirt. The invention is described in connection with a torque transmitter as described in Specification 549,951. In Fig. 2 the valve seat 53 is screwed into a disc 49 pressed into a bore 50 of a hub ring 16 connected to the drive member and to the impeller of the transmitter, and the valve 54 has driving connection with a driven member 11 via a driving link 63 of non-circular cross-section with an extension 67 which fits in a crown portion 55 of the valve. The shaft 11 is sealed by a cap 65 which together with a driving disc 64 is welded to the end of shaft 11. The crown 55 of the valve is pressed by a spring-pressed plate 59 arranged in a cap 57, and apertures 59, 60 permit the passage of escaping fluid from the valve. The valve 53 rotates relatively to its seat when there is slip between the shaft 11 and its driving-hub 32. In Fig. 5 the valve 54a is given an eccentric movement against its seat by a driving-link 63a which is given a wobbling motion by means of the eccentric bore 73 of a driving-cap 74 mounted in a cap 65a. The link 63a is formed with rounded ends and at its centre with a ball 68 which is fulcrummed in the cylindrical bore 69 of a bushing 70 within the bore of the valve casing, which is formed with flat sides, and has a shoulder 77 which retains the link as part of the valve assembly when the valve is withdrawn or the shaft 11 removed from the coupling. The invention may be applied to other types of hydraulic torque-transmitting devices such as torque converters of the vaned type.
Patent GB-1432293-A (GB)
Title: Motor vehicle and exhaust pipe therefor
IPC: F01N13/14
Filed: 1974-02-27
Abstract: 1432293 Vacuum insulated pipe NISSAN MOTOR CO Ltd 27 Feb 1974 [2 March 1973] 8966/74 Heading F2P [Also in Division F1] An exhaust pipe for a motor vehicle comprises an inner tube 31 which conducts exhaust gas and an outer tube 32 surrounding the inner tube with a sealed and evacuated annular space 33 between them. The width of the space 33 is determined by the exhaust gas temperature and dimensions and material of inner tube 31. The exhaust pipe may be constructed by welding the ends 34, Fig. 2, of the outer tube 32 which can be made either of stainless or ordinary steel to the inner tube 31 which may be made of stainless steel and then removing air from the annular space 33 thus formed through a vent in the outer wall. Flanges 35 can be attached to the ends of the inner tube so that the exhaust pipe can be connected to other parts, e.g. the exhaust manifold of the motor vehicle exhaust system. Damage to the outer tube especially in the regions where it is welded to the inner tube due to the unequal expansion of the tubes can be prevented by forming at least one circumferential groove 36, Fig. 3, around to outer tube 32. The heat insulation provided by the evacuated space may be improved by a. heat reflective coating 37 of, for example, chromium or aluminium on the inside surface of the outer tube which reduces the heat transferred by radiation from the inner tube and thus protects the vehicle body against unwanted heating caused by the exhaust gases.
Patent GB-956235-A (GB)
Title: Improvements in or relating to dental instrument tables
IPC: A61C19/02
Filed: 1963-03-06
Abstract: 956,235. Brackets; cabinets. A. KALTENBACH, and E. HOFFMEISTER. March 6, 1963 [March 22, 1962], No. 8985/63. Heading A4B. A container 1 for dental instruments 13 is supported for arcuate movement on links 2, 3, which may be of equal or unequal length and which are pivoted to the cabinet 5 or to the wall. The ends 7 and 9 of the links may be detachably mounted. An extension flap 11 is provided at the end of the top of the container.
Patent GB-328398-A (GB)
Title: Improvements in or relating to coating or surface treating machines
IPC: B29C70/68
Filed: 1929-03-20
Abstract: 328,398. Boecler, A. March 20, 1929. Workshops, arrangement of.-In apparatus for coating an endless band of fabric or metal with. indiarubber, celluloid, &c., held in solution in a solvent and recovering the solvent, comprising a closed container 1 provided with unsymmetrically distributed cooling surfaces 2, 3 and a heating table 5 over which the endless band 4 passes on rollers 8, the tubular heating members are extended to one side until they approach the wall of the casing so as to obtain an improved circulation of the vapourized solvent. The circulation is also improved by placing an insulated surface 10 obliquely between an auxiliary cooling surface 9 and the heating table. In the modification shown in Fig. 4, the heating table comprises two hollow plates 14 the heating area being extended to one side by a loop of tubing 15.
Patent GB-1459007-A (GB)
Title: Radio and inductive signalling system
IPC: G08G1/09
Filed: 1974-02-28
Abstract: 1459007 Radio and inductive signalling LICENTIA PATENT - VERWALTUNGSGmbH 28 Feb 1974 [7 April 1973] 9017/74 Headings H4L and H4U In a system for the transmission of traffic information to vehicles, signals are transmitted simultaneously by inductive transmission via conductive loops laid along road sections, and for a large traffic zone outside these sections, by radio via aerials electrically separate from the conductive loops and using the same wavelength as the inductive transmissions. The strength of the signal from the conductive loops is arranged to be greater than that of the radio signal along said road sections. The wavelength may be in a broadcast band and a normal car radio used, the vehicle being fitted with two aerials, one for each type of transmission. Means may be provided which rectifies signals received inductively and uses them to control a switch which disconnects the radio aerial, so that radio signals do not interfere when the vehicle is on the looped road sections. Particular messages may be transmitted to vehicles on the looped sections via the inductive loops, while more general information may be transmitted by radio to vehicles not on such sections.
Patent GB-722734-A (GB)
Title: Improvements relating to resilient torque transmitting couplings
Inventor: ELLINGER HERBERT
IPC: F16D3/62
Filed: 1953-03-27
Abstract: 722,734. Resilient couplings. ENGLISH ELECTRIC CO., Ltd. March 27, 1953 [April 9, 1952]. No. 9071/52. Class 80 (2). A resilient coupling between a spider 20, fast on a vehicle axle 11, and a spider 29 secured to a gear wheel 13 geared to an electric axle-hung traction motor and journaled on a hollow quill 10 secured to the motor frame, comprises tangentially-disposed tie-bars 31 each of which is secured at its ends to the spiders through coaxial rubber sleeves 25 which allow circumferential displacement of the tie-bars, with the rubber stressed primarily in shear, and also allow tilting. Each rubber sleeve 25 is disposed between double-tapered sleeves 23, 24, the outer sleeve 24 being held in boss 22 or 30 on its spider by a screwed bush 26 and the inner sleeve 23 being secured to the tapered end of the tie-bar by a nut 31a. A rubber-faced disc 33 secured to each tie-bar between the bearings 22, 30 against a shoulder by a nut 34 limits the circumferential movement.