baber/WOPTO huggingface dataset:
Patent GB-1303568-A (GB)
IPC: B21K1/30
Filed: 1971-07-08
Abstract: 1303568 Forging gears KABELUND METALLWERKE GUTEHOFFNUNGSHUTTE AG 8 July 1971 [9 July 1970] 32110/71 Heading B3H A forging apparatus for making a bevel gear comprises a die with a cavity shaped to produce the bevel gear and a punch composes of an inner shaping part 4 and a coaxial outer guide part 8. The guide part 8 is engaged with the die before forging to limit the radial flow of the blank 3. The excess metal 9 flows between the die and the guide part which lifts slightly during forging. In an alternative embodiment, Fig. 2 (not shown), the die (2) is mounted on a ram and the inner punch part (4) is fixed. The outer guide part 8 is movable on the fixed punch part. The axial force applied by the outer component towards the die may be constant or varied and provided hydraulically or by springs.
Patent GB-766805-A (GB)
Title: Improvements in adjustable bed tables
IPC: A47B9/12
Filed: 1953-11-19
Abstract: 766,805. Bedside table. WHITFIELD & CO., Ltd., S. B., and WHITFIELD, C. G. Nov. 19, 1954 [Nov. 19, 1953], No. 32153/53. Class 52 (3). A bedside table is vertically adjusted by applying end pressure, by screw operated means, to a flexible member housed in a guide, thus causing telescopic legs to expand. As shown a table top A is attached telescopically to the legs D by the members C. Two coiled springs G are provided in the middle member B, such that their outer ends abut on C and their inner ends press on lugs K. The lugs engage in slots O on the member B and are attached to sleeves J threaded on a right- and left-handed screw thread H which is mounted in a guide substantially parallel to the horizontal section of B and is fitted with a handle L. The table may be of single pillar type or of such construction as to allow the use of only one spring.
Patent GB-1268101-A (GB)
Title: Improved process for manufacturing ammoniated phosphoric acid
IPC: C05B13/06
Filed: 1969-06-25
Abstract: 1,268,101. Ammoniated phosphoric. acid. W. R. GRACE & CO. 25.June, 1969 [5 Aug., 1968], No. 32195/69. Heading C1A. An ammoniated phosphoric acid is produced continuously by feeding ammonia and wet process phosphoric acid into a reaction zone through which they move concurrently while forming a mixture which reacts exothermically in passing through the reaction zone to form an ammoniated phosphoric acid which is dehydrated by the reaction heat to provide a molten ammoniated phosphoric acid having at least part of its P 2 O 5  content in the non;ortho form, this molten ammoniated phosphoric acid being subjected to agitation by the input of mechanical energy and being withdrawn from the agitation zone whilst still molten and then transferred to a solidification or dissolution zone. The steam formed in the dehydration step and any excess ammonia present may be removed from the melt before it is subjected to agitation. The agitation may take place at a temp. of 375 to 425 F. The reaction zone is preferably maintained at superatmos. pressure, e.g. 10-60 p.s.i.g., and the exothermic reaction maintains the temp. at 400-500 C. The ammonia and phosphoric acid may be preheated before introduction into the reaction zone to 200-350 F. prior to entry to the reaction zone. The agitated molten product may be fed to a granulator together with finely divided recycle material so as to reduce the temp. of the melt so that it solidifies, and is granulated when it is then discharged. Alternatively the melt may be mixed in a suitable tank with water, ammonia, and gases separated from the molten composition to give a liquid composition containing 12-15% by wt. nitrogen, and 38-45% by wt. P 2 O 5  with 20-55% of the P 2 O 5  in a non- ortho form. The liquid composition so formed may be brought into contact with solid particles of ammoniated phosphoric acid and the water subsequently removed to give a solid product having a specified analysis. This solid product may be dissolved in water, and sufficient ammonia added to give the solution a pH of 5À8-6À2 when a solution contains 10-11% by wt. nitrogen and 34-35% by wt. P 2 O 5  is obtained.
Patent GB-211252-A (GB)
Title: Improved means for controlling the supply of gas to a geyser or other apparatus
IPC: F24H9/20
Filed: 1922-11-25
Abstract: 211,252. Sugg & Co., Ltd., W., and Sugg, P. H. Nov. 25, 1922. Fluid - actuated fuel valves for water heaters. -A safety device for use in connection with geysers and intended to be used in addition to the usual cocks for controlling the gas and water comprises a gas valve actuated by a diaphragm always subject to the pressure in the water main. The gas valve 4 is carried by a spindle 5 provided with a head 7 resting on a flexible diaphragm 8 clamped against The casing 1 by a cap 11, provided with a connecting nipple 12. The valve is loaded by a spring 13 adjusted by a screwed plug 14 and the stroke of the diaphragm is limited by a spun metal disc 9. The valve seat is provided with an adjustable bye-pass 17. Specification 11350/05 is referred to.
Patent GB-920484-A (GB)
Title: Improvements relating to valve-driving arrangements for internal combustion engines
IPC: F02F1/42
Filed: 1961-09-08
Abstract: 920,484. Valve gear. DAIMLER-BENZ A.G. Sept. 8, 1961 [Sept. 10, 1960], No. 32358/61. Class 7(6) In a valve-driving arrangement for an engine cylinder having two admission valves and two exhaust valves 12 ... 15 Fig. 1 per cylinder, the valves more remote from the valve driving means 25, 26, 27, Fig. 2, are operated through actuating levers 16, 17, intermediate members 20, 21 and driving levers 22, 23 mounted fast on a common shaft 54 and having a push rod acting on only one of them, while the nearer valves are operated through another driving lever 28 freely mounted on the shaft between driving levers 22, 23.
Patent GB-160293-A (GB)
Title: Improvements in apparatus for indicating the density of liquids and automatically grading the same according to their density
IPC: G01N9/18
Filed: 1919-12-24
Abstract: 160,293. Mennell, J. L., and Butters & Co., Ltd. Dec. 24, 1919. Fluid actuation. - Apparatus for indicating the specificgravity of liquids and grading them according to their specificgravity comprises a hydrometer balance actuating a switch which moves over a series of contacts and controls a motor adapted to swing a pivoted launder into definite positions; the specific-gravity of the liquid is also indicated on a scale. The float d in the vessel b is connected by a rod e to the beam f, to which is also attached a wire &c. g secured to a pivoted cam h. The cam carries a fork i bearing a counter weight i and is connected by multiplying gearing to a pointer k moving over a scale k<2>. The pointer carries a contact-brush k<1> co-operating with a series of contacts p, adjustably secured to a ring q, to control a motor o, which turns a gear segment n, so as to swing the launder m, along which the liquid is delivered, into definite positions corresponding to definite values of the specific-gravity.
Patent GB-211940-A (GB)
Title: Improvements in or relating to thermionic valves
IPC: H01J19/82
Filed: 1922-11-28
Abstract: 211,940. Stubbs, G. E., Brown, E. S., and Warner, F. Nov. 28, 1922. Vacuum tubes.-A valve having one or more filaments, grids or anodes is provided integrally with a switch whereby any one or more of the electrodes may be connected in circuit. The movement of the switch may be angularly, axially or diagonally with respect to the valve. The valve shown has three filaments 13, the common junction of which is connected with a pin 19, and the other ends with metal rods 24 mounted axially in an insulating base 15 and provided with spring-pressed plungers 26. The pin 19 is connected with a tube 21 containing a spring- pressed plunger 22. The base is surrounded by a metal cap 27 having apertures through which the plungers pass freely. An insulating sleeve 28, rotatable about the cap, is recessed to receive a contact 29 engaging continuously with the plunger 22 and having a recessed extension 292 whereby contact may be made with any one of the plungers 26. The switch may be modified so as to connect the filaments in series, parallel, or series-parallel, or to effect any connection of the electrodes, and may be adapted for use with bayonet, screw, or clip holders. The sleeve may be fixed and the valve movable. The spring- plungers may be replaced by rigid pins and the contact strip 29 may be spring held towards the pins. In a modification, a flexible lead connected with the pin 19 has a plug which may be inserted into recesses in the rods 24. Specifications 149,238 and 190,777 are referred to. According to the first Provisional Specification, a switch in the form of a screw connector may be used.
Patent GB-341967-A (GB)
Title: Improvements in induced current furnaces
IPC: H05B6/22
Filed: 1929-10-25
Abstract: 341,967. Induction furnaces. BORNAND, E., 112, Route de Florissant, and SCHLAEPFER, H. A., 13, Rue Verdaine, both in Geneva, Switzerland. Oct. 25, 1929, No. 32507. Convention date, Nov. 3, 1928. [Class 39 (iii).] The charge is heated and mixed by means of a high frequency coil embedded in a refractory body and supported independently of the furnace, the coil being suspended for vertical and horizontal movement. By means of a coil 7 embedded in a body 5 having a recess 6 light substances fed on to the surface of the bath may be carried below the surface. Specification 312,063, [Class 39 (iii), Heating by electricity], is referred to.
Patent GB-703351-A (GB)
Title: Improvements in or relating to cartons or containers
IPC: B65D1/26
Filed: 1949-12-19
Abstract: 703,351. Cartons. FRANGHIA, S. B. Dec. 19, 1949 [Dec. 17, 1948], No. 32542/49. Classes 18 and 66  A carton, or container of sheet metal &c. having a creased wall 2 integral with the base 1 and a rimflange 4 with flutings corrugations, crimps, or gofferings 4a, is of curvilinear horizontal cross-section, e.g. of circular, oval, elliptical, or rounded polygonal shape, and may be cylindripal, frustoconical or ovoidal &c. in elevation. The creases 21 in the walls may be only at the rounded corners of polygonal cartons &c. The lid 5 may be dished and flanged as illustrated. The base 1 may be embossed or recessed, and there may be a non-metallic lining and/or envelope.
Patent GB-734133-A (GB)
Title: A machine for stripping metal tubes from mandrels
Inventor: HOLLAND CECIL BERNARD
IPC: B21C45/00
Filed: 1952-12-23
Abstract: 734,133. Separating mandrels from work. WELDLESS STEEL TUBE CO., Ltd. Dec. 15, 1953 [Dec. 23, 1952], No. 32548/52. Class 83 (4), In a machine for stripping tubes i, Fig. 2, from mandrels j after rolling or drawing operations a pair of rolls d for gripping and pulling the mandrel or tube have means responsive to the pulling force for increasing the grip of the rolls. In an example in which the rolls d engage the mandrel j and pull it out of the tube i against a stripper h, the rolls are mounted in a pivoted frame c and a lever k pivoted on the frame and connected to a stationary thrust rod t is adapted to exert pressure on the upper roll d in response to movement of the frame. The lever k comprises parallel arms interconnected by cross-members n, o and is carried on a shaft p. It normally presses on the bearings of the upper roll d through the cross-member n and blocks q under the action of a spring-loaded plunger s slidingly mounted on the frame and connected to the cross-member o. In operation, when an abnormal extracting force occurs, the frame c is drawn towards the stripper h, thereby causing the pushrod t to tilt the lever k and effect an increased pressure of the rolls d on the work. In a modification the frame c may be slidable on the machine bed a and the rolls may grip the tube i, the mandrel j being held by a gripper. Hydraulic pressure means for the rolls responsive to the separating force between the tube and mandrel may alternatively be used.
Patent GB-1480148-A (GB)
Title: Pressurised water reactor
IPC: G21C7/36
Filed: 1974-07-23
Abstract: 1480148 Controlling nuclear reactors SIEMENS AG 23 July 1974 [23 July 1973] 32562/74 Heading G6C A PWR, having a core height of at least 3À5 metres, has a group L of control rods 10 for maintaining a desired coolant temperature and a group D of control rods 14 for compensating for the effect of the fuel temperature upon reactivity, and includes a system comprising upper and lower detectors 32, for obtaining local power measurements in upper and lower core regions respectively, and apparatus for regulating the position of rods of the group D in dependence upon the difference between upper and lower detector measurements. A further group X of control rods 16 acts, in conjunction with supplied boric acid and de-ionate, to compensate Xenon poisoning. The rods of group D may, alternatively, be positioned in dependence upon measurements from extra-core neutron detectors 44, 45. The apparatus also includes a burn-up distribution controller 35.
Patent GB-1435523-A (GB)
Title: Glass fibre optical waveguide
IPC: C03B37/012
Filed: 1973-07-09
Abstract: 1435523 Optical waveguide AGENCY OF INDUSTRIAL SCIENCE & TECHNOLOGY 9 July 1973 [12 July 1972 (2) 12 Sept 1972 21 Nov 1972] 32594/73 Heading C1M A glass fibre optical waveguide consists of a core material 1 and a cladding material 2 of lower refractive index than the core, the core material being undoped fused silica, and the cladding material being a glass containing at least 80% by weight of SiO 2 . A suitable cladding glass, for use with a fused silica core (refractive index 1À4571), consists essentially of 96% by weight SiO 2  and 4% by weight B 2 O 3 , and has a refractive index of 1À4562. The optical fibre may be produced by inserting a rod 1 of core material in a tube 2 of cladding material, sealing both ends 3 of the tube 2 to the rod 1, evacuating tube 2 using air vent 5, sealing off the air vent 5, heating the structure obtained to soften both core and cladding glasses, and drawing the assembly to form the desired fibre. The heating is preferably carried out using an oxyhydrogen torch, and the fibre is preferably drawn to a diameter of 50-200 Ám. Impurities present in the rod/tube assembly may be reduced by heating the assembly in oxygen at 500-1000‹ C. before the evacuation of the tube 2. The fibre ends are preferably formed in a convex or concave curve (Figs. 5-10; not shown). Both such curves may be obtained by optical abrasion. Alternatively, the fibre ends may be fused, allowed to assume a convex face by surface tension, and cooled. Similarly, a clear adhesive agent (e.g. an epoxy resin) may be applied to the fibre end and allowed to form a convex curved surface.
Patent GB-807113-A (GB)
Title: Improvements in or relating to vapour phase catalytic fluidised reactions
Inventor: DINEEN FRANCIS HENRY
IPC: B01J8/34
Filed: 1956-10-25
Abstract: <PICT:0807113/III/1> A vapour phase reaction vessel 3 has a reaction zone 4 bounded at one end by a distribution plate 7 with bubble caps 8 for gases which are fed into the reactor at 5 and 6.  Mounted on the plate is a fluid impervious cone which has a base area of one-fourth to three-fourths of the cross-sectional area of the reaction space and a height from base to apex of one-fifth to three-fifths of the internal vertical height of the reaction chamber. The cone is preferably a true geometrical cone with an angle of 50 to 80 degrees to the horizontal.  In a modification of the process the gas impervious cone which may be circular or polygonal in section and filled with carbon is centrally disposed in the lower part of the reaction chamber as before but need not rest on the distribution plate.  The reactor is particularly applicable for the preparation of vinyl acetate using fluidized activated charcoal of particle size between 30 and 150 mesh and impregnated with zinc acetate.  The apparatus however is suitable for pyrolytic reactions generally such as cracking petroleum hydrocarbons and in reactions involving preparation of high octane gasoline.ALSO:<PICT:0807113/IV (b)/1> Vinyl acetate is obtained by reacting acetylene and acetic acid in the vapour phase in the presence of a fluidized catalyst in a reactor comprising a vapour phase reaction vessel 3 having a reaction zone 4 bounded at one end by a distribution plate 7 with bubble caps 8 for the reacting gases which are fed into the reactor at 5 and 6 and effect fluidization of the catalyst in the reaction zone.  Mounted on the plate is a fluid-impervious cone which has a base area of one fourth to three fourths of the cross-sectional area of the reaction space, and a height from base to apex of one fifth to three fifths of the internal vertical height of the reaction chamber.  The cone is preferably a true geometrical one with an angle of 50 to 80 degrees to the horizontal.  In a modification the gas-impervious cone which may be filled with carbon is centrally disposed in the lower part of the reaction chamber as before but need not rest on the distribution plate.  In an example fluidized activated charcoal of particle size between 30 and 150 mesh and impregnated with zinc acetate is used as catalyst, the acetylene and acetic acid vapours being fed into the reactor in ratios between 3 : 1 to 5 : 1 and the reaction temperature being maintained at between 170 DEG  and 230 DEG  C.
Patent GB-999191-A (GB)
Title: Improvements in or relating to semiconductor amplifier
IPC: H01L23/482
Filed: 1963-08-19
Abstract: 999,191. Semi-conductor devices. WESTINGHOUSE ELECTRIC CORPORATION. Aug. 19, 1963 [Aug. 31, 1962], No. 32675/63. Heading H1K. A semi-conductor device is formed of a semi-conductor wafer having a base region of one conductivity type and at least two groups of electrodes on one major surface thereof, each group including at least one electrode in rectifying contact with the base region and one electrode in either rectifying or non-rectifying contact with the base region, and a common electrode disposed at the opposite surface of the wafer, so as to provide the equivalent of two transistors. The two groups are symmetrically placed about the centre of the wafer to ensure identical electrical characteristics. In one embodiment a boron-doped silicon wafer 10 is placed on a gold-antimony alloy foil C and gold-boron alloy foil members, for the contacts B, E, are placed on the upper surface of the wafer. The assembly is then heated to fuse the foils to the wafer, as a result of which electrodes C, E form rectifying contacts and electrodes B form ohmic contacts. A layer of wax is then applied to the wafer surface and a diametral line is scribed through the wax to expose the wafer and diametrically placed points on the electrodes. Etching in aqua regia then dissolves the gold alloy down to the silicon surface and then a mixture of equal parts of nitric, hydrofluoric and acetic acids produces a dividing channel 15, so forming two independent electrode assemblies. The channel may alternatively be formed by machining, sandblasting or charged particle or electromagnetic radiation. Connections within the electrode groups are finally made by means of gold-plated silver bridges. Two examples of connection arrangements, see Figs. 3 and 5 (not shown) involve, in one device, two transistor units, and, in another device, four transistor units.
Patent GB-917693-A (GB)
Title: Improvements in or relating to rotary shaft packings
Inventor: JORDAN WILLIAM THOMAS ARTHUR
IPC: F16J15/38
Filed: 1960-09-23
Abstract: 917,693. Stuffing-box substitutes. UNITED STATES METALLIC PACKING CO. Ltd. Sept. 27, 1961 [Sept. 23, 1960], No. 32683/60. Class 122 (5). In a seal for a rotary shaft 10 comprising rotary and non-rotary packing rings 17, 14 urged into facial sealing engagement, the rotary ring 17 is formed in halves, bolted together, sealed to the shaft by a resilient sealing ring 29 and axially located by a clamping ring 27 clamped to the shaft and engaging an internal annular groove 26 in the ring. The non-rotary packing ring 14 is sealed to a bore 20 in a plate 12 secured to the shaft housing by a resilient ring 19 urged into contact with the ring 17 by springs 22 and prevented from rotating by pegs 23 fixed in the plate 12 and engaging bores 24 in the ring. The rings 17 and 27 are also formed in halves bolted together.
Patent GB-160934-A (GB)
Title: Improvements in or relating to burglar and like alarm apparatus
IPC: G08B13/14
Filed: 1919-12-30
Abstract: 160,934. Attaque, J. O. Dec. 30, 1919. Burglar and like alarms.-A burglar alarm comprises a weight supported so as to fall when disturbed, as by the opening of a door or window, and having a flexible connection with the detent of a sound a arm. A spring-operated bell which can be wound up by rotating the gong 1 is hung up in a convenient position. The mechanism is kept from operation by a detent 3 4 with a weight 5 provided with spring tongues 6 inserted between a door 9 and frame 10. The tongues may have points or barbs to facilitate fixing in position and ensure operation by opening of the door. Fall of the weight withdraws the detent, a knob 7 being provided to stop the alarm when required. The weight may be adjustable along the cord, and may be supported by nipping a portion 8 of the cord between the door and frame. This method allows setting from the outside of the door.
Patent GB-601363-A (GB)
Title: Improved wheel assembly for railway cars and similar vehicles and method of manufacturing same
IPC: B60B37/06
Filed: 1945-12-04
Abstract: 601,363. Making wheels and axles. DEGERFORS JARNVERKS AKTIEBOLAG. Dec. 4, 1945, No. 32784. Convention date, Dec. 23, 1944. [Class 83 (ii)] [Also in Group XXXII] A hollow axle for a railway vehicle is formed with annular bulges 4 of arch-like section and to which the wheel discs 6 are welded by locally heating a tube in the region in which the bulge is required and then subjecting it to axial compression. The end 5 of the tube is then forged or pressed to form a j journal 5. The width b of the bulge should be at least 0.5#D<SP>2</SP> - d<SP>2</SP> where D and d are the outer and inner diameters of the tube. The axle may be turned smooth to remove scratches.
Patent GB-1395541-A (GB)
Title: Slide lift truck
IPC: B66F9/06
Filed: 1972-07-13
Abstract: 1395541 Side lift truck ERNST WAGNER KG 13 July 1972 [8 Sept 1971] 32926/72 Heading B8H A side lift truck comprises two carriages 2, 3 each having a mast 4, 5 which is fixed relative thereto, and a load carrier 6 which consists of a hoist slider 7 and load support 8 is mounted for vertical displacement along the masts 4, 5 by means of bearing rollers 10 mounted on the hoist slider 7 on axles 11 which extend transversely of the truck, lateral displacement of the hoist slider 7 relative to the masts 4, 5 being prevented by the abutment of the rollers 10 on the lateral walls of the mast although there is a small working clearance. Additional rollers 14 (only one shown) on the hoist slider 7 run in further guide rails on the masts. The load support 8 has rollers 16, 18 at both of its ends which run along guide rails on the hoist slider 7. The carriage 2 is provided with a drive motor (not shown) and the load support 8 includes conventional side lift apparatus 31.
Patent GB-411112-A (GB)
Title: A new or improved illuminated scenic device for decorative or practical purposes
IPC: G09F13/04
Filed: 1932-11-22
Abstract: 411,112. Systems of lighting. BURROWS, W., and BURROWS, R. L., 16, John Dalton Street, Manchester. Nov. 22, 1932, No. 32949. [Class 75 (iv).] In a system of lighting in which a decorative lamp is hung on a wall or forms a wall panel, for example, of a staircase, designs are produced on a rearwardly electrically illuminated translucent screen a by arranging or draping loose pieces of fabric f between the source of light c and the screen a. The fabric may be of silk and the lamp may be coloured and may be of the electric discharge type.