baber/WOPTO huggingface dataset:
Patent GB-1153429-A (GB)
Title: Improvements in and relating to Internal Combustion Engine Crankshaft Assemblies
Inventor: HAMMOMD ARTHUR CHARLES EDWARD
IPC: F16C3/14
Filed: 1965-07-08
Abstract: 1,153,429. Crank-shafts. DAVEY, PAXMAN & CO. Ltd. 5 July, 1966 [8 July, 1965], No. 28989/65. Heading F2U. In an I.C. engine crank-shaft assembly, lubricant is supplied to each main journal through a duct 7 and part-circumferential (e.g. more than 180 degrees long) groove 5, in the bearing housing 8, which is in constant communication with one or other end of a diametral passage 4 in the main journal 1, the passage 4 being positioned such that lubricant will be supplied through the passage to the lower parts of the bearing immediately before these parts become subjected to maximum load.
Patent GB-257133-A (GB)
Title: Process for the complete elimination of zinc from fine zinciferous ores and the like,especially zinciferous purple ores or calcined residues
IPC: C22B19/36
Filed: 1925-11-17
Abstract: 257,133. Mond, A. L.., (Metallbank und Metallurgische Ges., Akt.-Ges.). Nov. 17, 1925. Distilling zinc.-A process for eliminating zinc from fine zinciferous ores &c., especially zinciferous purple ore or calcined residues, of the type in which the ore, after desulphurization, is subjected to a melting process to volatilize the zinc and to convert the remaining non-volatile constituents into a slag, consists in first sintering and desulphurizing the finely-divided ore &c. by one of the known sintering processes, for example in a Dwight-Lloyd furnace, reducing the product to lumps of a convenient size, and then treating it with coal or coke in a shaft or blast furnace.
Patent GB-1274416-A (GB)
Title: Improvements relating to seed germination testing
Inventor: BEEDIE DAVID SMITH
IPC: A01C1/02
Filed: 1970-06-16
Abstract: 1,274,416. Seed germination testing. E. M. S. GILLIES. 19 April, 1971 [16 June, 1970], No. 29022/70. Heading A1E. Seed germination testing apparatus comprises a container I for water, a support member 11 for a sheet of absorbent material two ends of which are clipped beneath the water level, and an apertured plate 18 on the materials, seeds being placed within the apertures. A cover, which may be domed, contains ventilation holes 9, 10. A recess in one end of the plate 18 receives a rib 21 on the support member 11, the opposite end being located beneath a horizontal shelf.  In a modification, the material may be secured to a floating member.
Patent GB-813325-A (GB)
Title: Improvements in or relating to the manufacture of tubular arms having forked ends
IPC: H01R4/02
Filed: 1956-09-21
Abstract: 813,325. Making tubular fittings. MEKELEK ENGINEERING Ltd. Sept. 23, 1957 [Sept. 21, 1956], No. 29026/56. Class 83 (2). A method of manufacturing a fork-ended tubular arm 10 of rectangular cross-section comprises longitudinally slitting, slotting, sawing or shearing two opposite side walls of the arm, splaying apart the portions 12 on opposite sides of the severing and securing to the splayed portions on each side of the arm a plate 13 by welding, brazing or soldering so that a part 14 of the plate overlaps and is shaped to the splayed portions 12 and another part 16 projects beyond the end of the splayed portions to form a fork arm. In order to locate each plate during welding an indentation 19 is made to provide an inwardly projecting portion 20 shaped to lie between the splayed portions 12. Also an outwardly directed lug is provided at the end of the slots for engagement with a notch 22 formed in the chamfered end 18 of the plate. The splayed portions 12 may be curved or straight and their extremities are outwardly curved as at 23 (Fig. 6) to prevent damage to an electric cable passing through the arm.
Patent GB-1496407-A (GB)
Title: Electrochemical cells with a solid electrolyte
IPC: H01M50/186
Filed: 1976-07-12
Abstract: 1496407 Seals for sodium-sulphur cells CHLORIDE SILENT POWER Ltd 12 July 1976 [10 July 1975] 29130/75 Heading H1B In a sodium-sulphur cell the seal between a tubular, #-alumina solid electrolyte 10 and a steel or aluminium container 13 comprises a packing of a material 21 having a coefficient of expansion from 250+10<SP>-7</SP> to 1000 Î 10<SP>-7</SP>/ C., e.g. rubidium or caesium chloride. The material may be used with boron nitride, graphite or molydelendum disulphide. Alternatively, the seal may be positioned between an alpha alumina extension of the solid electrolyte or a flange thereon, and the container or a fitting secured to the container. In a modification (Fig. 2, not shown) the current collector 16 is in contact with a metal plate, instead of passing through the sealing ring 33. Aluminium powder or foil may be used to prevent extrusion of the packing materials.
Patent GB-1118081-A (GB)
Title: Dispensing device for liquid or semi-liquid substances
IPC: A61D7/00
Filed: 1964-07-15
Abstract: 1,118,081. Liquid dispensing syringe. P. C. COX. 29 June, 1965 [15 July, 1964], No. 29134/64. Heading A5R. [Also in Division F1] A dispensing device for liquids and semiliquids comprises a supporting structure, carrying as a reservoir for the liquid, a piston and cylinder assembly ending in a discharge orifice: and operating means including an actuating member which moves between preset points on actuation of an operating member, and effects axial movement of the piston relative to the cylinder, the cylinder and supporting structure having interengaging screwthreads of a pitch so determined that their relative rotation after one discharge causes axial movement of the cylinder relative to the supporting structure so as to determine the volume of the next discharge. The preferred form of the device, as shown, is of pistol shape, wherein the supporting structure comprises the handle 1 with a tubular, internally screw-threaded member 3, into which is screwed the cylinder 8, forming the reservoir, and which terminates in an external screw thread 9, and carries a piston 11. The operating means in this embodiment comprises the trigger-like operating member 22, pivoted at 21, which is arranged to impart axial movement to the actuating member 14, against the action of a spring 19. The external screwthread 9 has a base diameter which is not less than the external diameter of the unthreaded portion of the cylinder, so that this unthreaded portion can enter the bore of the internal screw threads of the tubular member 3. The piston is operated by a thrust member 18 on the end of the actuating member which engages with the piston inside the flange 12 on the latter. The extent to which the cylinder is screwed into the support tube governs the length of stroke of the actuating member, and hence the volume of fluid dispensed with each operation of the trigger. The device is preferably for use in administration of a drench to farm animals.
Patent GB-762672-A (GB)
Title: Improvements in or relating to four-terminal networks
Inventor: GRABAU JOACHIM JUSTUS ANDREAS
IPC: H04B3/14
Filed: 1953-10-22
Abstract: 762,672. Equalizing networks. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. Oct. 20, 1954 [Oct. 22, 1953], No. 29144/53. Class 40 (8). A symmetrical four-terminal equalizing network having an image impedance R which is constant and real within a small frequency range and which when terminated by a resistor Rx has a driving point impedance Z such that log |Z| varies with Rx, has an image phase shift B equal to 45 degrees Œ n90 degrees, n being a positive integer at a frequency (hinge frequency) within or at the boundary of the frequency range at which Z is required to be constant and independent of Rx. In the Specification equations are given connecting |Z| and B (the image phase shift) for finite and zero image attenuation A. Fig. 2 shows the relation between log |Z| and B where A Œ 0 and for various values Qf x where The lattice network of Fig. 3 and the equivalent unbalanced bridged-T circuit of Fig. 4 in which ZaZb = R<2> provide a relation between f (frequency) and B which permit a linear frequency characteristic for a = 20 log10 #Z#/R. Provided that Zb can be split into two impedances connected in series according to the equation where Z1Z2 = R<2> other equivalent networks, e.g. those shown in Figs. 5 and 6, may be found. The condition for the presence of a hinge frequency fh at which Z is constant is given by Œ 1 = tan Bh and it is shown in the Specification that tan where Zb = r + js. The suffix h indicates that the various values are taken at f = fh. For a real value of Sh the condition rh2 # 2R<1> must be satisfied and if the network is to be capable of transformation into the bridged-T form the condition assumes the form R # rh # #2R. If the network is part of a circuit in which stray terminal capacitance causes the disappearance of a sharp hinge frequency a suitable inductor is connected across the terminals which resonates with the stray capacitance at the hinge frequency. The Specification gives a numerical example of a typical network.
Patent GB-443796-A (GB)
Title: Improvements in or relating to electric discharge devices
IPC: H01J9/20
Filed: 1934-10-12
Abstract: An electric discharge device, e.g. a thermionic valve, is provided with a metallic coating by feeding into a flame a powder consisting of a lead alloy which is ductile when cold but very brittle at a temperature just below the melting point and projecting the molten alloy on to the surface of the device by means of a blast.  By using a lead alloy as the coating metal the temperature of the envelope of the device can be kept low, e.g. not greater than 50 DEG  C.  The powder may be prepared as described in Specification 438,552 and the alloy may for example comprise 50 per cent of lead, 20 per cent of tin, and 30 per cent of cadmium.
Patent GB-269845-A (GB)
Title: Improvements in and relating to composite building and insulating materials
IPC: C04B28/02
Filed: 1926-11-19
Abstract: 269,845. Arnesen, G., and Bech, P. A. April 26, 1926, [Convention date]. Plastic compositions containing sawdust &c. and cement.-A building-material is composed of sawdust, wood chips, or other waste from sawmills with cement as a binder, calcium oxychloride being added to impregnate the wood and aid cohesion. The fibre may first be treated with the oxychloride before the addition of the cement, or the materials may be mixed dry and sufficient water added to reduce to the proper consistency for casting in moulds. The material may be strengthened by the addition to the mixture of active silica such as trass or powdered brick.
Patent GB-1404931-A (GB)
Title: Electrical switchgear
IPC: H02B13/055
Filed: 1971-06-22
Abstract: 1404931 Metal-clad switchgear REYROLLE PARSONS Ltd 11 Sept 1972 [22 June 1971] 29269/71 Heading H1N In high voltage metal-clad switchgear filled with gas under pressure (e.g. SF 6 , compressed air) the adjoining sections of bus-bar or connection chambers have bellows-type expansion joints which permit relative movement, provide compensating means to minimize end loading on the chambers, and also cater for any assmebly misalignment, each joint comprising a main bellows 13, Fig. 1, attached in a gas-tight manner between end flanges 14, 15 of chambers 11, 12 and a group of pressure-compensating auxiliary bellows 16 mounted between these end flanges by means of overlapping brackets 17, 18 (detailed in Fig. 2, not shown) so that the two sets of bellows act in opposition. The interior of each compensating bellows is connected by a pipe 19 to the interior of chamber 11 so that all bellows and chambers are at a common pressure. The total effective internal cross-sectional area of the compensating bellows 16 is preferably equal to that of the main bellows 13 so that any end loading on the chambers arising from gas pressure and/or thermal expansion stresses transmitted to the chamber supporting structure is compensated since movement of the chambers tending to compress the main bellows 13 is accompanied by a similar expansion movement of the compensating auxiliary bellows 16 and vice versa. The group of compensating auxiliary bellows is normally distributed around the flange mounting for the main bellows (Fig. 3, not shown) but combination into a single double walled unit of annular cross-section with its inner wall surrounding the main bellows is referred to. The main bellows are of non-magnetic material to eliminate heating from induced electric currents.
Patent GB-1040057-A (GB)
Title: Composite steel article
IPC: B23K20/227
Filed: 1963-07-24
Abstract: A composite sheet comprising a carbon steel backing having an average carbon content of less than 0.12% and an austenitic stainless steel cludding of thickness less than half that of the backing and containing less than 0.03% carbon for at least a third of its thickness is formed by explosive bonding followed by hot rolling at at least 1550 DEG C.  A rimmed, killed or semi-killed carbon steel backing of composition:-  98.5% min. iron 0.04% max. phosphorus 0.05% max. sulphur 0.1% max. silicon 0.025 - 0.9% manganese 0.12% max. carbon  is clad with an austenitic stainless steel of composition  16 - 26% chromium 6 - 22% nickel 0 - 2% manganese 0.03% max. carbon traces of sulphur, phosphorus and silicon and optionally  2 - 4% molybdenum  small quantities columbium and titanium balance iron by explosive bonding.  The backing layer preferably has a carbon content at the surface of less than 0.06%.  After heating to say 2200 DEG F. for one hour the composite slab is hot rolled, cooled to at least 900 DEG F. in less than two hours and descaled after annealing at 1650-1750 DEG F. if desired.  Two workpieces may be simultaneously hot rolled together in sandwich form.  If further reduction is required it is effected by cold rolling in a reversing mill or a tandem mill.  A reduction of more than 2% entails subsequent annealing at 1450-1750 DEG F. followed by cooling to below 900 DEG F. in less than two hours.  Within the range 1450 DEG -1750 DEG F. annealing temperatures are under 1650 DEG F. for rimmed steel and up to 1750 DEG F. for killed steel.  Annealing may be carried out in air or, to avoid further descaling, in an inert atmosphere, e.g. argon or cracked ammonia, or in a vacuum.  The descaling may be mechanical or chemical by use of an agent such as 10% nitric acid-4% hydrofluoric acid, an aqueous sulphuric or nitric acid electrolytic pickling bath, or a melted salt or sodium hydride bath.  Thus e.g. the work in the form of a coil may be immersed in molten caustic soda at 700 DEG F. containing 1.5 - 2% sodium hydride produced in situ by reacting sodium and hydrogen.  This may be followed by a dip in 10% nitric 1 DEG % hydrofluoric acid for twenty minutes. Alternatively the carbon steel portion may be descaled by treatment in 10% sulphuric acid at 150 DEG F. for 30 minutes and covered with vinyl tape while the stainless steel portion is immersed in 15% nitric and 2% hydrofluoric acid at 150 DEG F. for 10 minutes.
Patent GB-707110-A (GB)
Title: Improvements in or relating to luminescent substances
IPC: C09K11/71
Filed: 1951-12-14
Abstract: 707,110. Luminescent materials. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Dec. 14, 1951 [Dec. 19, 1950], No. 29367/51. Drawings to Specification. Class 39(1) Luminescent material, for use with an electric gas discharge tube for the production of ultraviolet rays, comprising calcium orthophosphate activated by thallium, is characterised in that the crystal lattice comprises also aluminium, the ratio between the sum of the number of atoms of the elements calcium, aluminium and thallium and the number of atoms of phosphorus being between 3:2 and 2.4:2, preferably 2.9:2, and the ratio between the number of atoms of aluminium and thallium being between 0.5: 1 and 2: 1, preferably 1 : 1. There may be 4 atoms each of aluminium and thallium per 100 molecules of calcium orthophosphate. The luminescent material can be positioned inside the discharge tube or outside it, e.g. on a reflector outside the tube. The maximum emission of the material lies between 3050 and 3100 Š. Methods of preparation of the material are described. Specifications 512,154 and 577,693 are referred to.
Patent GB-919792-A (GB)
Title: Seal for a rotatable shaft
IPC: F23K5/04
Filed: 1960-08-25
Abstract: 919,792. Rotary pumps; stuffing-box substitutes. SUNDSTRAND INTERNATIONAL CORPORATION S.A. Aug. 25, 1960 [Sept. 30, 1959], No. 29369/60. Classes 110 (2) and 122 (5). A seal 22 between a rotatable shaft 16 and a housing 12, Fig. 2, comprises a floating nylon ring 50 which engages an annular seat 53 provided in the housing at one end of a recess through which the shaft extends, and' which is drivingly connected to the shaft by means of a pin 54 extending through the shaft and through a slot 54a in the ring and, by means of a compression-spring 56, to a ring 58, e.g. of leaded bronze, which is sealed to the shaft 16, e.g. by O-rings 65, and which is urged by the spring into engagement with an annular seat 60 at the other end of the recess. The seat 60 is formed on a ring 61 sealed to the housing by an O-ring 64 and held in the recess by a snap-ring 66. The spring 56 is supported on caps 55, 57, respectively engaging the rings 50, 58. As shown in Fig. 1, the shaft 16 carries first and second stage rotary gear pumps 17, 18 of an oil burner pump. The pump 17 transfers oil from a supply tank to a reservoir 13 incorporated in the housing 12 and fitted with a cylindrical screen 14. The pump 18 delivers oil from the reservoir 13 to a pressure-control valve 32 connected to the burner port 33. The discharge port of the pump 17 may be connected to the reservoir 13 or to the supply tank by altering the position of a plug 27 in a port 26. When excess pressure develops at the burner, the oil is by-passed through the valve 32 to a pipe 43 connected to the port 26. A drain line 67 connects the housing recess to the pipe 43.
Patent GB-739722-A (GB)
Title: Electrolysis process and apparatus
IPC: C25B1/16
Filed: 1952-11-20
Abstract: 739,722. Electrolytically decomposing salts of organic acyciic acids. HOOKER ELECTROCHEMICAL CO. Nov. 20, 1952 [Aug. 26, 1952], No. 29371/52. Drawings to Specification. Class 41. In the electrolytic decomposition of salts of organic acyclic acids there is provided an anode in contact with electrolyte containing an organic acyclic acid resulting from the electrolysis, a cathode in contact with electrolyte containing the cation resulting from the electrolysis, the electrodes being separated by a permselective membrane wet with electrolyte and the electrode compartments having means for introducing an electrolyte and an outlet for separately recovering gaseous products of electrolysis. According to a preferred modification, a three compartment cell is used, the solution of the salt to be electrolysed being introduced into the middle compartment which is separated from the other compartments by diaphragms, at least one of which is permselective, being anionic if adjacent the anode compartment or cationic if adjacent the cathode compartment. The permselective diaphragms can be constructed of ion-exchange resins made into thin continuous sheets. Such sheets can be made by intimately and uniformly distributing a substantial proportion of an insoluble infusible ion-exchange resin into plastic material such as a synthetic hydrocarbon type plastic, or natural or synthetic rubber. Examples relate to the electrolysis of sodium acetate or sodium formate, but salts of other acyclic acids such as propionic, butyric, monochloracetic, trichloracetic, acrylic, methacrylic, acetoacetic, pyruvic, oxalic, succinic, and maleic acids are referred to. If it is desired to produce a pure cathodic product such as sodium hydroxide, a cationic permselective membrane is provided facing the cathode and the salt to be electrolysed is introduced into the compartment on the other side of the membrane. If it is desired to produce a pure anodic product (the acyclic acid) an anodic permselective membrane is provided facing the anode, and the salt is introduced into the compartment on the other side of the membrane. Preferably a cell is employed with an anodic permselective membrane facing the anode and a cathodic permselective cell facing the cathode to form three compartments, a solution of the salt flowing into the centre compartment and water flowing into the electrode compartments. A solution of the acid leaves the anode compartment and a solution of sodium hydroxide leaves the cathode compartment; or if carbon dioxide is bubbled through the cathode compartment, a solution of sodium carbonate. The anode may be graphite, nickel, magnetite or platinum. The cathode may be steel. The employment of three compartment cells containing one permselective diaphragm and one conventional diaphragm is also referred to.
Patent GB-670824-A (GB)
Title: Means for protecting or safeguarding fluorescent lighting tubes
IPC: F21V3/00
Filed: 1949-11-16
Abstract: 670,824. Discharge tamps. ROWLAND, T. Oct. 30, 1950 [Nov. 16, 1949], No. 29376/49. Class 39 (i). A fluorescent lighting tube 11 is provided with a moulded plastic cover tube 17 of a non- splintering, transparent or translucent nature, and being resistive to fracture by blows. The cover serves to protect the tube 11 from breakage and is adapted to fit, together with the tube 11, into end casings 16 supported from a ceiling 14 by a base member 13 which also carries supporting spring clips 18.
Patent GB-1042509-A (GB)
Title: Improvements in or relating to hydraulic reaction turbine alternator sets
Inventor: KERENSKY GLEB
IPC: F03B3/18
Filed: 1962-07-31
Abstract: 1,042,509. Hydraulic turbines. ENGLISH ELECTRIC CO. Ltd. July 30, 1963 [July 31, 1962], No. 29414/62. Heading F1T. [Also in Division F2] An hydraulic reaction turbine, or pump-turbine, alternator set control system comprises means to maintain the runner spiral casing substantially full of water when the set is operating at synchronous speed with the penstock main valve and the runner adjustable guide vanes closed and the runner operating substantially in air, the water pressure being only a fraction of the normal working head, and means responsive to the opening of the main valve so that the adjustable guide vanes begin to open in advance of complete opening of the valve, the maximum flow area of the valve being at least twice that of the guide vanes and the flow-area of the vanes at no time exceeding that of the valve. An hydraulic turbine, or pump-turbine, alternator set comprises an alternator 12 connected to a runner 10 mounted within a spiral casing 15 fed from a penstock 13 through a main valve 14. Adjustable guide vanes 18 are controlled by a servomotor 42, Fig. 2 (not shown), through rod 41 and ring 40. A servomotor 22 controls the main valve 14 which has main and secondary by-pass valves 27, 29 respectively. When the runner 10 is being driven in air at synchronous speed by the alternator 12 with the guide vanes 18 and main and by-pass valves, 14, 27 closed, cooling water is supplied through pipe 30, air through pipe 34 to the draft tube 19 and water at a pressure slightly above atmospheric through by-pass 28 so as to offset the leakage from casing 15 through the vanes 18 and maintain the casing full of water. When the set is to be brought on load, by-pass valve 27. is opened to equalise the pressures in the penstock 13 and casing 15. Pressure switch 44, Fig. 2, then initiates operation of servomotor 22 to open main valve 14 which at a given opening closes electrical switch 51, by cam 50 attached to the shaft 24 of the valve, to energize control 43 of the guide vane servomotor 42. The guide vanes 18 begin to open until cam 56 on operating rod 41 opens switch 55 to de-energize control 43 and stop the opening of the vanes 18. Valve 14 continues to open and cam 50 closes switch 54 which energizes control 43 so that the vanes 18 start to open again. Should cam 50 close switch 54, before cam 56 opens switch 55, the opening of the vanes 18 will be continuous. Secondary by-pass valve 29 closes when vanes 18 are open. In the embodiment described, the maximum flow area of valve 14 is five times the maximum flow area of vanes 18. At no time does the flow area of the vanes 18 exceed that of the valve 14. A vent valve 31, level indicating switch 33 and an over-flow 45 are also provided.