baber/WOPTO huggingface dataset:
Patent GB-767759-A (GB)
Title: Improvements in or relating to powder compacts
IPC: A45D33/24
Filed: 1954-08-18
Abstract: 767,759. Boxes. KIASHEK, G. Aug. 16, 1955 [Aug. 18, 1954], No. 24031/54. Class 18. [Also in Group XXV] A powder compact comprises a casing 2 with a cover 20 hinged at 3 housing a powder container 1 with a hinged lid 5 carrying a catch 7 which co-operates with a sliding plunger 10, the plunger being pushed by the catch against a spring 12 when the lid 5 is closed thereby holding it closed and being pushed by means of a projecting part 16 by the cover 20 when it is moved to an open position thus releasing the catch 7 to permit opening of the lid 5. The plunger 10 is of rectangular section formed from sheet metal and is guided by a wall 1a of the container 1 and an outward flange 4 thereof with depending rim 8. When the lid 5 is closed the catch 7 passes through a slot 6 in the flange 4 and a cam face 7a engages the edge of a slot 15 in the plunger 10 urging it against the action of spring 12 abutting a lug 13 struck out of the top wall 9 of the plunger. When the lid is fully closed the plunger springs back and its part 9a blocks the nose 7b of the catch 7. When the cover 20 is opened its part 18 adjacent the hinge 3 presses the plunger inward until the part 9a unblocks the nose 7b thus permitting the lid to open. Specification 751,972, [Group XXV], is referred to in the Provisional Specification.
Patent GB-189881-A (GB)
Title: Apparatus for indicating the rate of feed of fuel to steam boiler furnaces and for like purposes
IPC: F23K1/00
Filed: 1921-09-10
Abstract: 189,881. Lea, J. E. Sept. 10, 1921. Rate of feed of granular materials.-Apparatus for indicating the rate of feed of fuel or other granular material, delivered through an orifice by a conveyer, is shown in Fig. 2 applied to a mechanical stoker of the chain-grate type and comprises a disc a provided with a series of scales b, one for each speed of the grate, each scale being calibrated to indicate the rate of feed for a particular speed in relation to various thicknesses of the layer of fuel on the grate. The disc a is keyed to the spindle by which the speed gears of the grate are changed, the arrangement being such that, when the spindle is operated, the appropriate scale b is brought behind a pointer c which is moved in one direction by a spring and in the other by the movement of the furnace door, the pointer thus indicating on the scale b the rate of feed of the fuel at any instant. Modifications are described in which the disc a is replaced by a similarly graduated flat plate or cylinder operated by the gear-changing mechanism. In a further modification, a plate g, Fig. 4, provided with the scales, is fixed and the pointer h, operated by the door f, has a wide end covering all the scales, the rate of feed being read from the scale corresponding to the speed of the grate at the time. Fig. 7 shows the device combined with the fuel-meter described in Specification 118,333, a pointer m being mounted on an extension n of the bar carrying the moving pinion of the meter, and surrounded by a cylinder o provided with a series of slots graduated along one edge as described above. The cylinder o is adjusted by hand, as shown, or it may be connected to the gear-changing mechanism. In a modification of this form of the apparatus, the cylinder o is fixed and has only one slot. the scales being arranged on a drum rotatably mounted within the cylinder.
Patent GB-1497376-A (GB)
Title: Electrolysis cell and method of operation
IPC: C25B15/00
Filed: 1976-06-10
Abstract: 1497376 Electrolysis cell with diaphragm washing means ORONZIO DENORA IMPIANTI ELETTROCHIMICI SpA 10 June 1976 24128/76 Heading C7B A method of electrolysis using a diaphragm electrolysis cell comprising maintaining a temperature difference between the anode and cathode  compartments so that the temperature of the anolyte is lower than that of the catholyte and water is applied to dilute and wash the cathode side of the diaphragm separating the anodic and cathodic compartments. The water may be applied direct to the diaphragm or may be obtained from steam injected into or produced in situ in the cathode compartment which steam condenses on the diaphragm and nearby cathode due to the temperature difference between the anode and cathode compartments which may be maintained by recirculating the anolyte through a heat exchanger and due to water permeation from the anolyte through the diaphragm when a water permeable diaphragm is used. The method may be applied to the electrolysis of brine using a horizontal cell, Fig. 1, with anodes 8, cathodes 16, diaphragm 19, brine feed 20 and saturated, supersaturated or superheated steam supplied continuously or intermittently at 29, alternatively the catholyte may be heated by pipes in the catholyte pond and the steam generated condensed on the diaphragm and reevaporated in a reflux condenser type process or water may be sprayed directly on to the diaphragm to remove the film. The electrolysis may also be carried out using a stacked bi-polar diaphragm cell Fig. 2, with cathode screens 38A, 38B, 38C, anodes 44C, diaphragms 39 and steam injectors 51B or a vertical cell Fig. 7 with anodes 69, cathode tubes 66 coated with diaphragm material 78 and steam injectors 81 or a Bi-polar cell with vertical anodes and cathodes in nested waveform Fig. 12 possessing anodes 94, cathodes 96 covered with diaphragm material 96A and steam injectors 113A. The anodes may be of titonium or tantalum sheet, perforated sheet, mesh or screen coated with platinum group metal oxide, the cathode may be ferrous perforated plate, mesh or screen and the diaphragm material may be asbestos, divinylbenzene -acrylic acid copolymer, polyethylene, divinylbenzene-polystyrene copolymer, polyvinylfluocarbon ether may be porous, water permeable, water absorbent permionic, substantially water impermeable or ion permeable. Gaseous chemicals e.g. Cu 2  and make-up water may be fed into the cathode compartment in addition to steam to produce alkali metal compounds e.g. carbonates and bi-carbonates.
Patent GB-618237-A (GB)
Title: Improvements in mining machines
IPC: E21C31/00
Filed: 1947-04-18
Abstract: 618,237. Mining-machines. MAVOR & COULSON, Ltd., and DONALDSON, J. K. April 18, 1947, No. 24211/45. [Class 68 (i)] An arc wall mining-machine comprising a mobile undercarriage, a body carrying the cutter-chain jib and angularly adjustable on said undercarriage, a power unit in said body. for driving the cutter-chain and propelling the undercarriage, and an extensible driving connection between the power unit and the undercarriage. As shown, the cutter-chain jib 12 is pivoted on a turret 14 which may be rotated about a substantially horizontal axis and is carried by a body 11 with fixed screws 24 engaging rotatable nuts in a frame 17 pivoted to the front axle of the undercarriage and angularly adjustable by a hand or poweroperated screw jack 21. A motor in the body 11 drives the cutter-chain and effects pivotal movement of the jib 12; the motor shaft 27 also, through connected transverse shafts 30, 33, Fig. 2, bevel gears 34, 35, telescopic shaft 36, 38 and bevel gears 43, 42 drives a transverse shaft 39 supported in the frame 17. A clutch 50 may connect shaft 39 to bevel gears 59, 58, to drive a telescopic shaft 57 and thereby propel the truck; alternatively, the clutch 50 may connect shaft 39 to a sprocket 47 which, through chain 49 drives a transverse shaft 45, Fig. 3, connected by shaft 51 and bevel gears 53, 52 to a transverse shaft 44, shafts 44, 45 carrying worms 46 which rotate the nuts engaging the screws 24, whereby the body 11 is raised or lowered on the frame 17. In another form, the frame 17 and the screws 24 with their co-operating gearing are omitted, the body 11 being pivoted on the front axle of the undercarriage. In a further form, the undercarriage may be propelled by a chain drive connecting the shaft 39 or its equivalent to the front axle. The undercarriage may have endless tracks.
Patent GB-1343317-A (GB)
Title: System for regulating an hydraulic pump
IPC: F04B49/00
Filed: 1971-04-19
Abstract: 1343317 Pump servo control ROBERT BOSCH GmbH 19 April 1971 [13 Aug 1970] 24321/71 Heading G3P [Also in Division F2] A reversible axial piston pump 58 in a hydrostatic transmission is controlled by servo piston 48 subjected to pump delivery pressure at 67 and to control pressure at 47 regulated by a servo valve 32 connected to a rod 24 carrying loose pistons 22, 23 movable between stops 25, 26 and 27, 28 on the rod. The pistons 22, 23 are urged against stops 25, 28 respectively by pressure in chamber 21' connected to a point intermediate a variable restriction 76, 77, responsive to pump delivery pressure at 79, and a fixed restriction 84. Auxiliary pump 96 feeds the variable restriction. In normal operation, hand lever 17 displaces lever 14 via spring 18, and lever 14 applies at 29 or 30 a force to piston 22 or 23 less than the force applied to the piston by the pressure in chamber 21'. Valve 32 accordingly moves against spring 63 to connect port 47 to pump delivery pressure at 46 or to drain at 44 to cause movement of servopiston 48, such movement causing recentering of valve 32 when spring 63 balances spring 18. If excessive torque is required at the pump 58, i.e. a torque greater than a predetermined constant product of pump delivery pressure and flow rate, restriction 76, 77 increases its throttling effect to lower the pressure in chamber 21' until the piston 22 or 23 engaging lever 14 is moved by the lever away from stop 25 or 28, the lever moving until it  abuts sidewall 12' or 12". The spring 63 can then displace valve 32 against the restraining force of the remaining piston 22 or 23 to reduce pump displacement, thereby over-riding the manual control. A pilot valve (101) responsive to excess delivery pressure can be provided to vent chamber 21' and thereby reduce pump displacement. Pump 58 drives motor 88 and is supplied by auxiliary pump 95.
Patent GB-334269-A (GB)
Title: Improvements in automatic train pipe connectors for railway vehicles
IPC: B61G5/08
Filed: 1929-05-28
Abstract: 334,269. Robinson, J. May 28, 1929. Divided on 335,883. Couplings, automatic.-A lock for an automatic train pipe coupling comprises a latch 44, pivoted on a coupling head D which is moved by a spring 55 into engagement with the guide of the mating head when the heads are in contact. The coupling head D is mounted for universal movement on a bracket 10 with the flange 13 normally in engagement with lugs 11 on the bracket. On coupling, the parts move to the position shown and the latch is actuated through the spring 55 by the eye 48 of a rod 49 fixed to the abutment 16. In uncoupling, the latch is withdrawn by the hooked end 47 of a link 46, which has an adjustable collar engaged by the eye 48.
Patent GB-169605-A (GB)
Title: Mechanism for diffusing gases and vapors through liquids
IPC: B01F3/04
Filed: 1920-08-23
Abstract: 169,605. O'Dell, A. E., (Canadian-American Finance & Trading Co., Ltd.). Aug. 23, 1920. Rectifiers; hydrocarbons, cracking.-Gases from petroleum stills, &c. are treated with liquids, which may contain substances in suspension, by passing in finely divided condition through a series of porous diaphragms on which layers of liquid rest. The process may be applied to the fractional separation of the constituents of petroleum and tar. The back pressure set up by the apparatus is advantageous in cracking operations. The gases and vapours from the still 1 pass through the compressor 3 to the bottom of one of a series of diffusers shown in section in Fig. 2, comprising a shell 14 containing gas-porous diaphragms 15, 16 which form compartments 19, 20, connected in series by ducts 24, 25, having liquid seals. The gases penetrate upwards through the successive diaphragms and the liquid thereon, which enters at the inlet 28 and to the extent limited by the height of the duct inlets flows in counter current. The gases are led to the bottom of the next diffuser from which liquid may be pumped to the previous one, or the liquid may be discharged from each diffuser into separate tanks.
Patent GB-867188-A (GB)
Title: Chlorination of zirconia-silica compounds
Inventor: EVANS ARTHUR WALLACE
IPC: C01G25/04
Filed: 1958-07-30
Abstract: In the production of zirconium tetrachloride by chlorine with a zirconia-silica compound such as zircon, in the presence of an oxygen acceptor, preferably elemental carbon or carbon monoxide, as a fluidised bed, a siliconcontaining additive which reacts exothermically with chlorine is added to sustain the reaction temperature.  Ferrosilicon and silicon carbide are particularly suitable, and may be added in amounts from 2 to 50% by weight of the zirconia-silica compound employed.  The carbon may be supplied as petroleum coke and the zircon preferably has a particle size of 76 to 250 microns and is present in a zircon-coke ratio of 4 to 1. Reaction temperatures may be from 900 to 1250 DEG C., and the reaction vessel may be provided with a perforated base plate through which the pressure drop is from one half to fifty times the pressure drop across the bed.  The chlorine inlets are preferably fitted with covers to prevent solids passing therethrough.  According to Examples, (i) a 4 to 1 zircon/coke mixture was preheated to 1100 DEG C. in a fluidised reactor with an air stream.  Air was replaced by chlorine and a mixture of zircon, ferrosilicon and coke was thereafter fed continuously whereby the reaction temperature was maintained at 1070-1150 DEG C.  Zirconium tetrachloride and silicon tetrachloride were separately condensed. (iii) A bed of zircon sand of average particle size 140 microns was fluidised with air and preheated to 1100 DEG C., after which the air supply was replaced by a mixture of chlorine and carbon monoxide whilst a zircon/ferrosilicon mixture was fed in continuously thereby maintaining the required reaction temperature.  Specifications 794,666 and 813,489 are referred to.
Patent GB-1159843-A (GB)
Title: Process for manufacture of Heavy Aromatic Solvent
Inventor: KING LAURENCE FREDERICK
IPC: C10G69/06
Filed: 1967-05-26
Abstract: 1,159,843. Hydrogenating hydrocarbons. ESSO RESEARCH & ENG. CO. 26 May, 1967, No. 24593/67. Heading C5E. In a process for producing a heavy aromatic solvent a hydrocarbon oil is steam cracked and an aromatic tar is produced, said tar having a boiling point above 500‹ F., the said tar is heat soaked, and flashed and a 350‹ to 550‹ F. boiling point fraction is recovered and this fraction is then catalytically hydro-treated. The feedstock may be a gas oil or a mixed gas oil-naphtha. In an alternative embodiment the steps of heat soaking and flashing may be replaced by the step of destructive distillation. The hydro-fining catalyst may comprise cobalt oxide and molybdenum oxide, or cobalt molybdate absorbed on alumina, oxide, silica gel, clay, or hydrogen fluoride promoted alumina. The hydro-fined distillate may be re-destilled and washed with sodium hydroxide solution.
Patent GB-951107-A (GB)
Title: Improvements relating to a-nor-steroid compounds
IPC: C07J61/00
Filed: 1960-07-14
Abstract: The invention comprises A-nor-steroids of the general formula: <FORM:0951107/C2/1> wherein R represents hydrogen and R1 represents a hydroxy group or R and R1 together represent a keto group, and X represents a halogen, and the preparation thereof by reacting D 3-A-nor-pregnene-9b , 11b -oxido-2, 20-dione of the formula: <FORM:0951107/C2/2> with a hydrogen halide and, when required, oxidising the resulting 9a -halo-11b -hydroxy-A-norprogesterone of the first general formula above to form the corresponding 11-keto compound.  D 3-A-norpregnene -9b , 11b -oxido-2, 20-dione of the second formula above is prepared by reacting 11a -hydroxy-A-norprogesterone with an organic sulphonating agent-preferably a lower alkane sulphonyl halide or a p-toluene sulphonyl halide, to form the corresponding 11a -sulphonic ester, desulphonating the ester for example, with an alkali metal salt of a lower fatty acid in a lower fatty acid, to form D 3, 9(11)-A-nor-pregnadiene -2, 20-dione, treating this compound with hypochlorous or hypobromous acid, which may be formed in situ from an N-halo-amide or -imide, to form a 9a -chloro (or bromo) -11b -hydroxy compound of the first general formula above, and treating these compounds with a basic reagent such as an alkali metal salt of a weak acid.  Therapeutic compositions having anti-androgenic activity which may be administered topically (e.g. as ointments) or systematically (e.g. as injection solutions), contain as the active ingredient A-nor-steroids of the first general formula above.  Specification 951,108 is referred to.
Patent GB-925187-A (GB)
Title: Improvements in or relating to potted electrical devices, for example, transformers
Inventor: KIMBER COLIN SPENCER
IPC: H01F27/02
Filed: 1958-07-30
Abstract: 925,187. Transformers. GENERAL ELECTRIC CO. Ltd. July 27, 1959 [July 30, 1958], No. 24615/58. Class 38 (2). In a potted transformer, part of which may attain a potential high enough to cause a corona discharge, a screen (or screens) 15 (Fig. 1) is wholly or partly embedded in the potting resin and arranged to reduce the tendency for the corona discharge to occur, the screen being of synthetic resin through which is distributed fully divided conducting material such as aluminium or graphite. The screen 15 may be earthed by connecting it through a copper gauze screen to an earthing terminal 16 and may have curved corners. The screen 15, bobbin assembly 22 and terminals 25 are arranged in a mould 21 and potted before a closed core formed of two laminated U-shaped members is added. Some details are given of the materials and method which may be used in making the screen are given. The Provisional Specification describes another arrangement which is described and claimed in Specification 925,188. Specification 845,780 also is referred to.
Patent GB-1478651-A (GB)
Title: Process for production of photoconductive particles for electrophotography
IPC: G03G5/08
Filed: 1974-06-04
Abstract: 1478651 Cadmium sulphide CANON KK 4 June 1974 [4 June 1973] 24719/74 Heading C1A [Also in Division G2] Photoconductive particles useful for electrophotography are prepared by contacting a solution of CdCl 2  with H 2 S to form a precipitate of cadmium sulphide containing additional chlorine and firing the product, there being added at or before at least one of the above steps an acceptor impurity. A donor impurity may also be added at or before the precipitation step. Donor impurities are selected from Al, In and Ga and acceptor impurities from metals of Groups Ia or Ib of the Periodic Table. The CdCl 2  solution may additionally contain a second cadmium compound in solution or suspension.
Patent GB-1338535-A (GB)
Title: Wiping and washing arrangements for motor vehicles
IPC: B60S1/48
Filed: 1972-05-25
Abstract: 1338535 Windscreen cleaning systems WESTFALISCHE METALL INDUSTRIE K G HUECK & CO 25 May 1972 [26 May 1971] 24722/72 Heading A4F In a wiping and washing system for a windscreen, headlamp lens, vehicle rear window, or other glazed surface and including a pressure sensitive switch actuated by liquid pressure in a washing liquid conduit, a wiper motor is energized upon response of the pressure sensitive switch to a reduction of liquid pressure in the conduit following an increase caused by liquid being driven through the conduit. On, operation of a washer pump a pressure sensitive switch 5b is closed so that a capacitor C is charged via a diode D2 and a resistor R1 to render a transistor T conducting, a current flowing through the latter and a resistor R4, a diode D1, and the switch 5b. On discontinuation of the washer pump operation the switch 5b opens, to interrupt a by-pass circuit of a relay which is then energized to operate the wiper motor. In an alternative embodiment Fig.2, (not shown), the diodes D1, D2 are omitted and the pressure-sensitive switch has a change-over function to connect either the resistor R1 or the relay to earth.
Patent GB-444943-A (GB)
Title: Improvements in and relating to sealed joints between tungsten wire and quartz
IPC: H01J5/38
Filed: 1935-09-05
Abstract: 444,943. Glass manufacture. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Sept. 5, 1935, No. 24774. Convention date, Oct. 17, 1934. Drawings to Specification. [Class 56] [See also Group XI] In sealing tungsten leading-in wires into quartz, the wires are first sealed into an intermediate glass which is substantially free from alkali and has a coefficient of expansion between 10 x 10<-7> and 40 x 10-', preferably between 10 x 10<-7> and 30 x 10<-7>. In an example, a tungsten wire is covered with an intermediate glass layer consisting of 88À3 per cent of SiO2, 8À4 per cent of B2O3, 2À9 per cent of Al2O3, and 0À4 per cent of CaO, this having a coefficient of expansion between 10 x 10-<7> and 15 x 10-'. When a thick tungsten wire, having for example a diameter of 2 mm., is to be sealed through a quartz wall, two intermediate glasses of different compositions may be employed, the stated compositions being such that the tungsten is sealed directly into a glass having a coefficient of expansion of about 25 x 10-', while the intermediate glass between this and the quartz has a coefficient of expansion of about 15 x 10<-7>. The glass is preferably entirely free from alkali or contains less than 0À1 per cent. A satisfactory seal can, however, be obtained when the alkali amounts to less than 1 per cent.
Patent GB-1488372-A (GB)
Title: Dispenser for granular material
IPC: G01F11/24
Filed: 1974-06-04
Abstract: 1488372 Powder dispenser GENERAL FOODS Ltd 4 June 1975 [4 June 1974] 24799/74 Heading B8N A dispenser for predetermined amounts of granular material such as sugar, coffee, &c. comprises a bucket valve with a base 5, side walls 6 and a partition 9 defining a pair of metering chambers 7, 8, the valve being pivoted on a spindle 10 to empty either of the chambers. The valve is tilted by a lever 13 connected to a knob 15. A latching mechanism, Fig. 6 is provided if the dispenser is used in a coin operated mechanism and includes a latch 22 to hold the lever 13 until released by a coin operating on a linkage which includes an overcentre linkage 19 and a spring-biased plunger 23.
Patent GB-405218-A (GB)
Title: Improvements in or relating to window wedges
IPC: E06B3/44
Filed: 1933-09-07
Abstract: 405,218. Window wedges. BELL, R. J. Cape Charles, Virginia, U.S.A. Sept. 7, 1933, No. 24840. [Classes 44 and 89 (ii).] A window wedge is formed from sheet metal and has a body portion B, a resilient wedging portion 14, and a wing portion 15, which is placed against the side edge of the window sash.