baber/WOPTO huggingface dataset:
Patent GB-1155159-A (GB)
Title: Improvements in or relating to Indirectly Heated Dispenser Cathodes for Electrical Discharge Vessels
IPC: H01J1/28
Filed: 1967-08-04
Abstract: 1,155,159. Cathode materials and processing. SIEMENS A.G. 4 Aug., 1967 [5 Aug., 1966], No. 35914/67. Heading H1D. [Also in Division C7] In an indirectly heated dispenser cathode of the metal capillary type in which emissive material migrates through the pores in a porous plate from a dispenser arranged behind the rear surface of the plate to spread over the emissive surface of the porous plate, the porous plate is formed of carbon and its emissive surface has an intermediate layer of one or more of the carbides of Mo, W, Ta, Ti or, particularly, Zr and an outer metal coating of tungsten and/or a platinum-group metal. As shown, the porous plate 1 of the main cathode is heated by electron bombardment from an auxiliary dispenser cathode 6 which also serves as the supply of emissive material, e.g. barium, for the carbon plate 1. The zirconium carbide layer 11 may be formed on the carbon plate 1 by immersing the plate in a 4% solution of zirconium acetylacetonate, decomposing the zirconium compound so deposited in a dry hydrogen atmosphere for about 10 minutes at 1200 C., spraying at least that surface of the plate which is to receive the metal coating with a suspension of zirconium in butyl acetate to form a compacted zirconium carbide layer and annealing the plate in vacuo at 1800 C.
Patent GB-325898-A (GB)
Title: An improved potato planting machine
IPC: A01C9/04
Filed: 1928-12-06
Abstract: 325,898. Keir, J. Dec. 6, 1928. Planting - machines; manure distributers.- A potato-planting machine comprises a rota.ry plate 5 mounted within a hopper 1 and provided with a ring of holes 7 adapted to receive potatoes and convey them to a discharge opening 8 in the upwardly and forwardly inclined front wall 2 of the hopper, the plate 5 being mounted on a spindle 6 driven from the wheel axle by bevel and spur gearing 9, 10, 12, 13 and a change wheel 14 mounted on a slotted plate 20 movable concentrically about the shaft 11 of the spur wheel 12 by the link and lever mechanism shown, so as to throw the mechanism in and out of gear. A control lever 16 is mounted near the driver's seat 17a. The spindle 6 passes through the plate forming the hopper wall 2, and the plate 5 has bosses 5<a>, 7<a> to space it from the plate 2, the holes 7 passing through the bosses 7<a>. The back part of the hopper is curved to fit around the plate 5. A spring presser 25 may eject the potatoes through the opening 8 into a shoot 8<a>, leading to the furrow. The machine may be provided with a fore-carriage or a draught pole. It may be combined with a manure distributer and a plough.
Patent GB-899398-A (GB)
Title: A method of producing aluminium nitride which is stable when exposed to moist air, and the use of the same for producing dense compacts
IPC: C01B21/072
Filed: 1960-10-20
Abstract: An aluminium nitride which is stable in moist air is obtained from an AIN, which has been fully annealed by heating in the presence of N2 at atmospheric pressure, by pulverizing, e.g. using Al2O3 balls, and reheating to above 1600 DEG C. in N2 at subatmospheric pressure, e.g. between 10 and 50 mm. Hg.  The N2 may be present as an atmosphere or a current of gas.  The annealed AIN may be obtained by heating AIN produced by heating Al2O3 and C in NH3 or N2, or by heating Al in N2. The stable pulverised AIN can be hot-pressed at temperatures of 1800 DEG -1900 DEG C. and pressures above 100 Kg./sq. cm. (e.g. 300 Kg./sq. cm.) to form a compact body.
Patent GB-468371-A (GB)
Title: Improvements in and relating to electric battery lamps
IPC: F21L4/00
Filed: 1935-12-31
Abstract: 468,371. Electric - battery lamps. WEBBER, J. Dec. 31, 1935, No. 36104. [Class 39 (ii)] An electric - battery lamp comprises in combination a hollow case 1 with a concavoconvex glass 3 secured to its front by means of a bezel 4, a metal reflector plate 7 held in position behind the glass 3 by a spring clip 10 and lugs 9 on the case, a lamp bulb 8 mounted on the reflector plate, and an insulating strip 15 secured at its ends to the plate and supporting a spring finger 14 which bears against the centre contact of the bulb, the battery 18 being carried by a spring cradle 19 which fits into the back of the case so that a battery contact 17 bears against a rearward extension of the finger 14, key-hole slots 23 or other means being provided on the back of the cradle to enable it to be attached to a wall or like support, and an operating switch 28 at the end of a length of flex 27 extending from the case and connected to the other contact of the battery and to the reflector. The spring cradle 19 forming the back plate is provided with resilient arms 24 to retain the battery in position, and a pair of arms 24<1> which are provided with buttons 25 arranged to snap into holes at the top and bottom of the case and removably hold the cradle and battery in position. One button 25 is made hollow for the passage of the flex 27.
Patent GB-763425-A (GB)
Title: Production of sodium tripolyphosphate
Inventor: EDWARDS JAMES WILLIAM
IPC: C01B25/41
Filed: 1954-12-15
Abstract: Sodium tripolyphosphate containing a major proportion of Form I (the "high temperature form") is prepared by heating <PICT:0763425/III/1> a mixture of sodium phosphates and sodium acid phosphates having a molecular ratio of Na2O to P2O5 between 1.5 and 1.8 and an atomic ratio of Na to H of less than 10 at a temperature between 200 and 470 DEG C. for a period of time sufficient to produce a major proportion of Form I but insufficient to convert a substantial proportion to Form II (the "low temperature form"), and thereafter cooling the reaction mixture to below 150 DEG C.  The two forms of the tripolyphosphate are referred to in the Journal of the American Chemical Society, Volume 63, page 454.  The reaction mixture may comprise ortho, meta or pyrophosphates, hydrated or anhydrous and can include normal as well as acid salts.  Numerous examples of suitable combinations are given.  Fig. 1, illustrates the effect of time of heating a mixture of disodium and monosodium orthophosphate at 250 DEG C. from which it will be seen that the sodium tripolyphosphate Form 1 reaches a maximum shortly before 1 hour of heating.  At this point the reacting solids are cooled to below 150 DEG  and preferably below 100 DEG C.  The time at which the reaction is stopped is dependent upon the temperature employed, the nature of the reactants, their proportion and their physical state and is determined by experiments for given conditions.  According to an example equimolecular proportions of anhydrous disodium orthophosphate and monosodium orthophosphate-disodium orthophosphate double salt was heated at 250 DEG C. in a porcelain crucible for 3 hours.  The product analysed by X-ray diffraction contained 70 per cent by weight of Form 1, about 15 per cent by weight of Form II and the remainder sodium pyrophosphate.
Patent GB-355152-A (GB)
Title: Improved method of manufacturing profiled metal pieces, such as metal plates, stripsor the like
IPC: B21H7/00
Filed: 1930-12-02
Abstract: 355,152. Rolling. SEIFERTH, H., 35, Kolumbusstrasse, Obercassel, Dusseldorf, Germany. Dec. 2, 1930, No. 36296. Convention date, Feb. 1. Addition to 332,051, [Class 83 (iv), Metals, Working]. [Class 83 (iv).] In rolling profiled sections by feeding a bar in an inclined position between the pass between a roll and a platen as in the parent Specification the platen is built up of individual parts h, i k, l, m; n, o which can be arranged as desired and secured in the table x by wedges r and screws q.
Patent GB-921387-A (GB)
Title: Method of separating finely-divided particulate material from a gas
Inventor: PAFLA GERHARD
IPC: B01D47/10
Filed: 1959-10-27
Abstract: 921,387. Washing dust-containing gas. WAAGNER-BIRO A. G. Oct. 27, 1959, No. 36332/59. Class 55 (2). In an apparatus for removing dust from a dust-containing gas the gas is passed through a Venturi tube 3 and sprayed from a nozzle 9 with a liquid, e.g. water, in the form of a conical veil, the nozzle being so arranged that some of the spray is reflected back into the gas stream from the wall of the Venturi tube. The nozzle 9 may be spaced from the inlet to the Venturi tube a distance which is 0.5 to 1.1 times as large as the diameter of the narrowest part of the Venturi tube.
Patent GB-839143-A (GB)
Title: Improvements relating to flexible covers for seats
Inventor: GLEAVE LEONARD FORD
IPC: A47C3/12
Filed: 1957-11-22
Abstract: 839,143. Securing seat covers. EVERTAUT Ltd. Oct. 30, 1958 [Nov. 22, 1957], No. 36390/57. Addition to 752,215. Class 52(4) In a seat cover according to the parent Specification the resilient skirt 4 is of thermoplastic material, preferably polyvinyl chloride, and has a groove 8 into which the edge of the cover fabric 3 is inserted and secured by heat and pressure.
Patent GB-1356258-A (GB)
Title: Gear boxes
IPC: F16H3/091
Filed: 1970-07-28
Abstract: 1356258 Variable-ratio gear TURNER MFG CO Ltd 21 July 1971 [28 July 1970] 36417/70 Heading F2D A countershaft four, or five (Fig. 3, not shown), forward ratio and one reverse gear comprises aligned input and output shafts 13, 22, which may be clutched together via a synchronizer sleeve 29 for direct drive (TOP), and a countershaft 44 driven at different speeds from the input shaft 13 through constant mesh gear pairs 41, 47; 26, 48 and 28, 46 controlled by a further synchronizer sleeve 49 and the synchronizer sleeve 29 respectively, the countershaft 44 being permanently connected to the output shaft 22 via a constant mesh gear pair 45, 39, the gears 47 and 48 being selectively clutched, via the synchronizer 49, to the layshaft 44 for 1st and 2nd ratios respectively and the gear 28 selectively clutched via the synchronizer 29 to the input shaft 13 for 3rd ratio, reverse being established by moving an idler (not shown) into mesh between a pinion 27, fast on the input shaft 13, and external teeth on the synchronizer sleeve 49. In Fig. 2 (not shown) a planetary two-speed direct/reducing splitter gear is provided in series between the main C.S.G. output shaft (58) and the final output shaft (64), the latter shaft (64) being fast with a carrier, the planets of which mesh a ring (61) fast with shaft (58) and a sun (63), a synchronizer (66) being provided to clutch the sun (63) to the carrier for solid lock-up drive through the planetary gear, or, brake the sun on the casing to act as a reducing splitter gear of the main C.S.G. ratios. In Fig. 3 (not shown) a five forward ratio and one reverse gear is shown which is similar to the four forward speed gear of Fig. 1 with the addition of a further meshing gear pair (73, 74) the latter of which may be selectively clutched to the input shaft (75) by a further synchronizer sleeve (76) for the additional gear ratio. A sleeve 15 slidably splined on the input shaft 13 and on an input shaft extension 16 accommodates any misalignment when the input shaft extension 16 is connected via the usual clutch (not shown) to a prime mover (not shown).
Patent GB-1298947-A (GB)
Title: Lighting systems for road vehicles
Inventor: JONES KENNETH JAMES
IPC: B60Q1/14
Filed: 1969-07-21
Abstract: 1298947 Car anti-dazzle arrangement JOSEPH LUCAS (INDUSTRIES) Ltd 17 June 1970 [21 July 1969] 36545/69 Heading G1A In a car lighting system in which the projected beam is controlled to avoid dazzling the driver of an oncoming car by means of a photo-sensitive device exposed to light from the oncoming car; a cover is provided to prevent light falling on the light-sensitive device when the system is not in use. Shutters 16a, 16b, Fig. 1 are moved across apertures 12, 13 in a plate 11 by the output of photo-sensitive device 17 the shutters being positioned in accordance with the position of the incoming light in aperture 12 and the front edge of 16b being in advance of the front edge of 16a to give the necessary protection. Cover 23 protecting the cell from for example sunlight is actuated by gravity to obscure aperture 12 and is lifted by a solenoid when the system is switched to operate.
Patent GB-446983-A (GB)
Title: Ice accretion indicator for aircraft and internal combustion engines
IPC: F01L1/00
Filed: 1934-12-21
Abstract: 446,983. Apparatus for indicating ice formation on aircraft. SWAN, A., GRIFFITH, A. A., and HELMORE, W., Royal Aircraft Establishment, South Farnborough, Hampshire. Dec. 21, 1934, No. 36608. [Class 4] [See also Groups XXVII and XXIX] An ice-accretion indicator comprises a warning-device, means for actuating said warning-device, a device responsive to ice formation having a part on which ice forms when ice forming conditions prevail, which ice is arranged to constitute an element in the means bv which said warning device is actuated. In one form, Figs. 1 and 2, as applied to an aircraft the means responsive to ice formation comprise a diaphragm 24 secured between the two halves of a casing forming upper and lower pressure chambers which communicate by conduits 9, 27 respectively with forwardly opening passages 15, 16 formed in a cylindrical member 14 of which the axis is disposed in the direction of motion. Passage 16 is adapted to be readily obstructed by ice-laden air by means of a plug 18 having a small inlet aperture 19. A balance plug 20 with an aperture 21 is inserted in tube 15, and each passage also communicates with the atmosphere by means of a screwed plug provided with a bleed hole. Diaphragm 25 carries centrally a pip 34 adapted to engage the free end of a spring blade 35 secured to the diaphragm housing by an insulated bolt 36 secured at its outer end to a lead 39 of an electric cable 13. Spring blade 35 is arranged to make contact, on downward deflection of the diaphragm which occurs on obstruction of orifice 19, with an adjustable contact member 40 connected by a conducting-strip 43 with a terminal 48 connected to cable lead 47. A heating-coil 8 is would around the cylindrical member 15, one end being connected to strip 43 and the other to cable lead 53. As shown in Fig. 3, the warning-device comprises a lamp 57 disposed in a circuit comprising a battery 56, a main switch 55 and a relay-operated switch 58. Switch 58 which is closed on downward movement of the diaphragm also serves to establish the circuit of heater coil 8 whereby the ice obstruction in passage 16 is thawed and diaphragm 24 is restored to its neutral position. A modified form of this device is described in which the cylindrical member is disposed in the induction pipe of the aircraft engine. In this case the bleed holes are omitted since the passages are subjected to suction and the electric circuit is simplified by the omission of the heater and relay. According to further modifications the warning-device may be operated mechanically, and a horn or indicating- needle for instance forming part of the air-speed indicator may be substituted for the lamp. The heating-coil may be manually instead of automatically controlled. The element responsive to ice formation may comprise an apertured part e.g. a piece of gauze disposed in the air stream in such manner that when the apertures become blocked the wind resistance of such part increases and the part is moved to initiate the warning-signal.
Patent GB-338021-A (GB)
Title: Water softening vessels
IPC: B01J47/00
Filed: 1929-12-02
Abstract: 338,021. Breuil, E., and Etablissements Phillips & Pain. Dec. 2, 1929. Addition to 295,004. Purifying liquids.-The water-softening vessel described in the parent Specification is divided into two compartments, and provided with an overflow orifice at a level lower than that of the pouring-orifice. A vertical partition 2 divides a vessel 1 into a duct 3 and a chamber in which softening material is bounded by perforate partitions 4, 5. The partition 2 has a ledge 9 to retain the hard water in its compartment when the vessel is tilted. A hollow handle 6 forms an overflow pipe with its top orifice at a lower level than that of a spout 7, so that on regeneration a head of water is obtained and the softening material may be lifted by the pressure, a clearance being left below the upper plate 4. To prevent the air cushion in this clearance impeding the normal flow of water an air escape pipe 14 is provided. A holder 10 is provided with ears 11 offset with respect to the vertical axis so that when the vessel is carried, it is tilted and prevents the hard water flowing away out of the overflow orifice.
Patent GB-911949-A (GB)
Title: Improvements in or relating to explosives and propellants
IPC: C06B23/00
Filed: 1959-10-30
Abstract: 911,949. Explosive and propellent compositions. NITROGLYCERIN A.B. Oct. 30, 1959 [Oct. 31, 1958; Dec. 4, 1958], No. 36937/59. Class 9 (2). An explosive or propellent composition comprises a mixture of inorganic nitrate treated with a coating of a surface-active organic amine having at least 6 carbon atoms in an alkyl group in an amount of 0.001 to 1.5 g. per 100 g. of the nitrate, and a combustible material. Specified amines are hexadecylamine, octadecylamine, dodecylamine, stearylamine, stearylamine acetate, stearyldimethylamine, oleylamine, hexadecylamine chloride, hexadecylamine acetate, isopropylamine lauryl sulphate, laurylamine and C 18  H 37 NH(CH 2 ) 3 NH 2 . The preferred quantity is about 0.1%. Preferably the amine is added to the crystallized nitrate at a temperature higher than the melting-point of the amine and then the salt is allowed to cool with stirring; the amine may also be added to a solution or a melt of ammonium nitrate. The mix may also contain a sensitizer such as nitroglycerine, nitroglycol or nitrated hydrocarbons such as nitrotoluene; a carbonaceous fuel such as coal, paraffin, wood flour, or a finely-divided combustible powder such as aluminium, ferrosilicon, or silicon. In a typical example (No. 1), a dynamite consists of nitroglycerine 24.1%, nitroglycol 11.8%, ammonium nitrate with a surface coating of 0.16% of dodecylamine, 54.4%, nitrated toluene 6.0%, nitrocotton 1.4% wood flour 2.1%, and chalk 0.2%.
Patent GB-1442622-A (GB)
Title: Structural elements
IPC: E06B3/82
Filed: 1973-08-04
Abstract: 1442622 Injection moulding doors &c. A PRYCE-JONES and J B HOLT 4 Nov 1974 [4 Aug 1973] 37099/73 Heading B5A [Also in Division E1] A structural element, e.g. a door comprises foamed plastics material bonded to a surrounding metal or plastics framework 12, the framework comprising frame members including spaced parallel limbs 13, 14 the inner faces of which are provided with keying formations 16, and is made by disposing the framework in engagement with a mould element 10 so that the framework defines the periphery of a mould cavity and injecting foamed plastics material into the cavity. The framework may be disposed between a pair of mould elements 10, 11 (Fig. 4). Alternatively only one mould element may be used and a panel (20), e.g. of asbestos may be located in a channel 17 in the framework, the mould cavity being bounded by the one mould element, the panel and the framework. If a panel is used injection is effected in two stages, the structure being turned over between injections. For making a door the framework may comprise extruded aluminium sections and a lock 21 may be attached to the framework prior to injection of foamed polyurothane material. If the door is to be glazed, one or more glazing frames may be positioned in the mould prior to injection.
Patent GB-454642-A (GB)
Title: Improvements in and relating to electric detonators
IPC: F42B3/103
Filed: 1934-12-28
Abstract: 454,642. Electric detonators. IMPERIAL CHEMICAL INDUSTRIES, Ltd., Millbank, London. Dec. 28, 1934, No. 37176. Void [Abridged as open to inspection under Sect. 91 of the Acts, July 1, 1935]. [Class 9 (i)] An electric detonator is made moisture proof by means of a metal cap J threaded over the leads h and secured to the mouth of the detonator casing a by screwing or otherwise, the cap being previously filled with roofing tar or asphaltum or other plastic waterproof material.
Patent GB-899477-A (GB)
Title: Improvements in or relating to the production of footwear
IPC: A43B13/32
Filed: 1958-11-20
Abstract: Rubber-soled footwear having grain or corrected grain leather uppers is made by forming the uppers from leather which has been treated with a finishing agent containing vulcanisable constituents and subsequently bonding the rubber soles to the so finished surfaces of the lasting edges of the uppers in a non-pressure type sole moulding machine.  The term "vulcanisable constituents" includes natural and synthetic rubbers together with ethylene oxide-casein complexes and also additives such as stabilizers and vulcanising agents. Preferably the finishing agent is one containing a substantial proportion, e.g. 50% of vulcanisable constituents, calculated by weight on the solid content of the agent.  One suitable agent is "Eukanol Binder G.G. Special" (Registered Trade Mark).  One or two coats of the finishing agent may be padded on by hand and then dried and hot plated at 50 DEG C. and 200 Kg/cm2 pressure in a plating machine.  A further coat may then be sprayed on followed by drying and hot plating at 60 DEG C. and 200 Kg/cm2.  A top spray coat of a carnauba wax emulsion may finally be applied.  Sponge rubber soling having a filler content of 50 to 60 parts per 100 parts of rubber or solid rubber soling having a filler content of up to 50 parts per 100 parts of rubber may be employed.
Patent GB-1498612-A (GB)
Title: Submersible pipe electrical cable assembly
IPC: H01R13/523
Filed: 1976-09-09
Abstract: 1498612 Electrical connectors ITT INDUSTRIES Inc 9 Sept 1976 [1 Oct 1975] 37384/76 Heading H2E An electrical connector member comprises an axially deformable resilient body 50 having a front face 48 transverse to the longitudinal axis of the body 50, a cylindrical metal bellows embedded in the body 50, and an annular contact mounted on the front face of the body 50 and electrically connected to the bellows. As described, the member is employed in a submersible electrical connector comprising two elongate pipes 12, 14 and a screw threaded coupling sleeve 16, a connector member 24, 26 being mounted in each of the opposed end sections of the pipes 12, 14. At least one of the members 24, 26 is as defined above, a plurality of concentric bellows 66, 68, 70 being employed, each attached at one end with a respective contact 42, 44, 46 and at its opposite end with a respective termination element 88, 90, 92 and crimp or solder pot 94, 96, 98 to which is attached the conductors of a power cable. The body 50 is of insulating material, terminating at its front face with projecting annular rings 60, 62, 64 which are compressed during coupling by the front face of the opposed coupling member. This compression together with the relative rotation of the two members 24, 26 during coupling cleans the contacting faces of the opposed contacts 42, 44, 46.  As shown, one contact member 24 may comprise concentric conductors 36, 38 and solid rod 34, one end of each of which is attached to a respective contact 42, 44, 46 the opposite ends being connected to a respective cable conductor. Each connector member 24, 26 may be enclosed within a metal housing 30, 52. Electrical conductivity of the bellows may be increased by packing metal wool in the convolutions. Each bellows may be provided with longitudinal slits extending from the front end but terminating short of the rear end, the slits providing contact float and better contact surface alignment. The sleeve 16 may be welded to pipe 12. Annular sealing ribs 104 permit the axial compression of the body 50 and also prevent intrusion of dust or moisture into the interior of the conductor member.