baber/WOPTO huggingface dataset:
Patent GB-976934-A (GB)
Title: Improvements in or relating to method and apparatus for the direct reduction of iron ore into pulverulent iron by means of a gaseous reducing agent
IPC: B22F9/22
Filed: 1961-04-05
Abstract: <PICT:0976934/C6-C7/1> A method for the direct reduction of powdered iron ore comprises a first stage in which the heated ore is reduced by gases in fluidized beds in cascade to FeO at a temperature of 900-1050  DEG C. and then cooled to 700  DEG C. and a second stage in which the FeO is reduced to iron by hydrogen in fluidized beds at 700 DEG C. As shown, the iron ore is reduced to FeO by gases from the incomplete combustion of hydrocarbons in a fluidized bed formed in cascades 3-6, a worm conveyer 7 moving the FeO from the lowermost bed 6 to a bed 18 where it is cooled to 700  DEG C. The cooled oxide is then supplied to a cascade 10-13 of fluidized beds and reduced to iron by hydrogen flowing in a controlled recycling circuit. The waste gas from bed 3 is divided into three portions, the first being used to cool the FeO to 700  DEG C., and then burned in a burner 18 to produce reducing gas, the second is reheated before being burned in the burner 18, and the third is burned to reheat the second portion, the gases being circulated by a fan 20.
Patent GB-387306-A (GB)
Title: Method for preparing a rubber or gum solution with use of a special solvent and useful in textile and tanning industries
IPC: D06M15/693
Filed: 1931-04-25
Abstract: Rubber, particularly from old tyres, or Borneo gum is distilled and the distillate is heated with an alkali such as caustic soda, washed, treated with an acid such as sulphuric acid or an acid salt, decanted from the precipitated tar, again washed and fractionally distilled over sodium carbonate or lime.  The fraction boiling between 70 DEG C. and 250 DEG  C. may be used as a solvent for resins, gums and tanning agents for leather such as chromium salts, synthetic tanning agents made from phenol or naphthol, and pyrogallic or catechitic tannins.  The fraction boiling between 250 DEG  C. and 400 DEG  C. is used to dissolve greases and aniline colours for treating leather. The gases produced during distillation of the rubber may, after desulphurizing by sodium, potassium or calcium salts, be used for heating or in the preparation of potassium bromide, chloroform or bromoform.  The black solid residue in the retort may be used as filler in tyre manufacture and in paints.  It may be purified by treatment with acids such as hydrochloric acid, the hydrogen sulphide and carbon dioxide evolved being recovered as sodium potassium or calcium sulphides and carbonates, followed by washing, the waste water being concentrated to recover the lead, magnesium, calcium and zinc chlorides originally contained in the rubber.ALSO:Rubber, particularly from old tyres, or Borneo gum is distilled and the distillate is heated with an alkali such as caustic soda, washed, treated with an acid such as sulphuric acid or an acid salt, decanted from the precipitated tar, again washed and fractionally distilled over sodium carbonate or lime.  The fraction boiling between 70 DEG C. and 250 DEG  C. may be used as a solvent for resins, gums, and tanning agents for leather.  The fraction boiling between 250 DEG  C. and 400 DEG  C. is used to dissolve greases and aniline colours for treating leather.  The gases produced during distillation of the rubber may, after desulphurizing by sodium, potassium or calcium salts, be used for heating or in the preparation of potassium bromide, chloroform or bromoform.  The black solid residue in the retort may be used as a filler in tyre manufacture, in paints or as a filtering medium for liquids.  It may be purified by treatment with acids such as hydrochloric acid, the hydrogen sulphide and carbon dioxide evolved being recovered as sodium, potassium or calcium sulphides and carbonates, followed by washing, the waste water being concentrated to recover the lead, magnesium, calcium, and zinc chloride originally contained in the rubber.ALSO:The black solid remaining in the retort after distilling rubber or Borneo gum may be used as a filtering-medium for liquids.
Patent GB-591661-A (GB)
Title: Improvements in and relating to portable high speed electric grinding, polishing anddrilling machines
IPC: B24B23/02
Filed: 1945-05-16
Abstract: 591,661. Drilling-machines; chucks. CENTRAL TOOL & EQUIPMENT CO., Ltd., and SAMUEL, D. W. May 16, 1945, No. 12355. [Class 83 (iii)] [Also in Group XXIII] In a portable electric drilling-machine, an elastic coupling between the motor and tool spindles consists of a helical spring with an axially protruding semi-circular loop at one end engaging a diametral slot in the end of one of the spindles. The motor is mounted in a casing a and the armature spindle d is mounted in ball bearings e, f and carries a ventilating fan g. A detachable sleeve h supports the tool spindle i on two ball bearings j, k and between the two spindles is the helical spring m, secured to the motor spindle by a socket member n and having a loop m<1> engaging a slot l<1> in a socket member l on the tool spindle. At the other end, the tool spindle has flats d<1> for the engagement of a spanner and also a conical socket p in which a split tool-holding collet q is adjustable by a nut r.
Patent GB-921957-A (GB)
Title: Grilling appliances
IPC: A47J37/04
Filed: 1959-04-13
Abstract: 921,957. Grilling appliances. WILLIAM R. P. SCHULZ G.m.b.H. April 13, 1959 [May 7, 1958; Nov. 4, 1958], No. 12402/59. Class 28 (1).  An article to be grilled is held between two side pieces 1, 2 of a cage each of which is adjustably mounted with respect to the axis of trunnions by which the cage may be rotatably mounted. As shown, the ends 3, 4 of side pieces 1, 2 which may be of anodised wires, are adjustably held in holes 6 in metal holders 5 by gripping devices 7, 8. The trunnions are formed by a pin 10 and by a pin holding handle 9 on the cage. The two pieces of the cage may be connected by a parallelogram linkage and skewers may be mounted in the cage on which food can be cooked.
Patent GB-636818-A (GB)
Title: Improvements relating to gas-turbine engine parts
IPC: F23R3/00
Filed: 1948-05-05
Abstract: Parts of a gas turbine fabricated from heat resisting sheet metal having one surface subjected to a gas in which fuel has been burnt and the other surface to a relatively low temperature gas, have the latter surfaces roughened by means of metal applied by a deposition method.  The roughened surfaces increase the heat transfer from the metal to the relatively cool gas.  The metal may be sprayed or electro-deposited on the sheet metal or a combination of both methods used.  The roughened surface may be obtained by spraying the metal non-uniformly or by spraying the metal through a wire or other suitable gauze placed on the sheet metal and afterwards removed. This roughness may also be obtained by using wire of non-uniform character in the spraying device. Gauze may be used to produce the roughness when the electro-deposition method is used.
Patent GB-730022-A (GB)
Title: Improvements in or relating to fabric winding-down or drawing-off mechanism for circular knitting machines
IPC: D04B15/88
Filed: 1952-05-16
Abstract: 730,022. Knitting - machines. STIBBE & CO., Ltd., G., STIBBE, E. V., and BURDETT, H. S. May 13,1953[May 16, 1952], No.12443/52. Class 74 (2). Each fluted roller of a pair of takedown rollers is rotatably mounted at one end in a pivoted block 5 and at the other in a slidable block 6. A block 5 and a block 6 are accommodated in each of the end frames 7 so that the rollers can be sprung apart against the action of springs 13 on the blocks 6 to allow for variations in the fabric. The end of the spindle 3 of each roller engaging the block 5 is extended to receive a ratchet wheel 22 which is rotated by a pawl 23 mounted on a bell-crank 27 carrying on its other arm a follower 28 which engages a cam on each revolution of the needle cylinder to raise the pawl. The operative stroke of the pawl is effected by a compression spring 35 housed in the side frame and engaging a pin 32 on the crank 27. A stop pawl 39 engages the ratchet wheel to prevent backward rotation of the rollers when the pawl 23 is raised.
Patent GB-1329639-A (GB)
Title: Materials handling equipment
IPC: B66C3/16
Filed: 1971-04-30
Abstract: 1329639 Lifting attachment for vehicles UEB INDUSTRIES Ltd 30 April 1971 [4 May 1970] 12473/71 Heading B8H Material handling equipment, e.g. for handling sacks, comprises an attachment I whose base 2 in use of the device is fixed to a vehicle, movable links 3 pivotally connected to the base 2 and to a member 6 carrying a head 7 on which a material handling head 14 is mounted for rotation about the axis of a horizontal shaft 9 under the action of a ram 13 which rotates the shaft 9 by means of chain wheels 10, 12 connected by a chain 11, the head 14 being also movable from one side of the longitudinal axis of the device to the other side on movement of the links 3 by a ram 8. Sacks are engaged by claws 17 on a pair of rotatable shafts 16, the shafts being rotated by means of a ram 22 and connected via a crank lever 21 and links 20 to the shafts 16. In a second embodiment, Figs. 3-5 (not shown) the head 14 is mounted for movement both about a vertical and horizontal shaft (9) (29) under the action of rams (13) (32), and in a third embodiment, Figs. 6, 7 (not shown), a further pivot (31) is provided which permits pivotal movement of the head 14 about a horizontal axis at right angles to the axis of the horizontal shaft (29) under the action of a ram (33).
Patent GB-800255-A (GB)
Title: Improvements in and relating to chimneys
IPC: E04F17/02
Filed: 1956-04-24
Abstract: 800,255. Chimneys; chimney blocks. FAUSER, H. April 24, 1956 [April 25, 1955], No. 12516/56. Classes 25 and 87(1) A chimney block comprises a triple sidewalled hollow structure open at its ends to form an axial central passage which is adapted to constitute part of a chimney shaft in which the middle wall 3, Fig. 1, is spaced from the walls 1, 2, by annular webs 8, 9, staggered axially on each side of it to bound non-coextensive air pockets 10, 11. Axially extending webs 13, 14, Fig. 4, are disposed between the walls 1, 2, 3. In modified blocks, the middle wall-of curved or rectilinear form-is inclined between the outer and inner walls. The web 8 is located intermediate the ends of the wall 3 in yet another modification. In a two-part block the outer and middle walls 61, 63, Fig. 6, are integral, with the connecting piece 62 comprising an annular web, whilst the free end of the wall 63 has an extension 66 constituting a similar web for connection, by mortar 67, to the inner wall block part 70. The wall ends 64, 65, and 71, 72, have jointing faces for connection to adjacent blocks.
Patent GB-869352-A (GB)
Title: Improvements in and relating to marine vessels
IPC: B65G67/60
Filed: 1958-04-21
Abstract: 869,352. Platforms for handling freight. BROWN & CO. (MARINE) Ltd., GEORGE, and BROWN, J. G. April 21, 1959 [April 21, 1958], No. 12526/58. Class 78 (4). [Also in Group XXXIII] A cargo ship is provided with a series of fingers 1 extending outboard of the side and/or stern to provide an intermediate station for loading and unloading by fork lift trucks operating on the deck and quay. The fingers 1 are each pivotably mounted and adapted to be stored vertically inboard and are made from channel-section. The fingers 1 may be joined to a common shaft so as to pivot in unison which action may be effected by either a hand lever or electric motor. If the deck is below the level of the quay the fingers 1 may be transferred as a unit to the quay and adapted to extend over the deck from suitable fixing points and counterbalance weights. For handling cased cargo and motor cars, pallets and ramps are provided. The fingers 1 may be mounted for slidable movement outboard and inboard.
Patent GB-466060-A (GB)
Title: Improvements in and relating to electric resistance heaters
IPC: H05B3/48
Filed: 1936-05-04
Abstract: 466,060. Electric heating resistances. BRITISH THOMSON-HOUSTON CO., Ltd. May 4, 1936, No. 12583. Convention date, May 4, 1935. [Class 39 (iii)] In an electric resistance heater of bar form having all external connections at one end and in which the heating conductors a are embedded in compressed electric insulating material c, each lead and return portion of the one or several heating conductors is arranged in a separate protecting tube b so shaped that when the several tubes are assembled together they form a heating unit of circular cross-section. The whole element is swaged, after the tubes have been placed together, in order to compact the insulating material. The pressure at the same time causes the tubes to adhere together. They may, however, be welded or soldered together in addition. A protecting cap is soldered on the end of the element remote from the connections and a threaded head to secure the heater in position is attached to the other end of the element.
Patent GB-632521-A (GB)
Title: Improvements in rubber springs
IPC: F16F1/40
Filed: 1947-05-09
Abstract: 632,521. Springs; vehicle suspensions. SPENCER MOULTON & CO., Ltd., G., MOULTON, A. E., and HERMANNVARGA, O. May 9, 1947, No. 12587. [Classes 108 (ii) and 108 (iii)] A rubber torsion spring comprises a plurality of circular rubber ring elements bonded or otherwise gripped between metal plates, hinged respectively to members which can rotate relatively to one another and adapted to be strained in rotational shear between parallel plane surfaces on the plates, such surfaces being perpendicular to the axis of rotation of the members and the rubber rings having circular cylindrical free faces between their plane faces. As shown, each ring 3 is bonded on one face to the base 4 of a pierced metal cup whose side 8, engages the wall of an outer tube 2, and on its opposite face to the radial flange 5 of a metal thimble 10 threaded on an inner tube 1. The elements are arranged in pairs so that alternately the flanges 5 and the bases 4 face each other. The rubber elements may be compressed by means of screwed end caps 9 until the edges of the walls 8 of the elements abut together A cover 11 and a sealing ring 12 exclude dirt. The thimbles 10 and the walls 8 are formed with grooves which engage corresponding lands 6, 7 on the inner and outer members 1, 2, respectively. These lands may be formed integral with the tube, or may comprise metal strips brazed to the surface of the tube or to slots milled in the tube. When used in a vehicle suspension, the inner tube may be fixed to the chassis and the outer to an arm carrying a stub axle.
Patent GB-118338-A (GB)
Title: An Improved Hydraulic Telemotor.
Inventor: MILLAR JOHN
IPC: B63H21/22
Filed: 1917-09-01
Abstract: 118,338. Millar, J. Sept. 1, 1917. Bell signals; hydraulic signals.-Telemotor apparatus for the transmission of signals or movements comprises a transmitter and receiver, each provided with diaphragms C supported by pistons D, levers G between the piston-rods being connected to the operating means and signal respectively, and pipe connexions P being provided. In order to compensate for variations in the volume of the operating liquid, the circuit is connected to pairs of chambers A<1>, D<1> closed by spring or weight-loaded diaphragms B<1>, E<1>. The diaphragms E<1> near the receiver may be moved by means of a lever L<4> so as to cause the diaphragms B' to operate a gong hammer K<5>.
Patent GB-833150-A (GB)
Title: Improvements in or relating to friction articles
IPC: F16D69/00
Filed: 1958-04-21
Abstract: 833,150. Friction clutches. BENDIX AVIATION CORPORATION. April 21, 1958 [April 24, 1957], No. 12598/58. Class 80 (2). [Also in Groups II and XXXIV] In a friction article of the type described in Specification 740,820, wherein the ceramic metallic friction material is provided with a reinforcing cup having a base or walls forming a surrounding laterally-extending side, the elimination of the walls with their tendency under certain conditions, to score the other friction member is achieved by forming the friction article with a carrier member 22, a perforate backing member 20, a bottom layer 18 of copper, copper alloy, iron or other powdered material, according to the composition of layer 16, and compacting the assembly under pressure, so that the layer 18 makes a firm bond in the perforations of backing member 20. In one process of manufacture the layers 18 and 16 originate as loose metal powder, are compacted at 40,000-100,000 p.s.i., sintered at 1200- 2050‹ F. and the article is then coined at pressures up to 100,000 p.s.i. Various possible compositions of the layers 16 and 18 are listed having as principal ingredients copper, mullite, silica, bismuth, lead, molybdenum, nickel, iron, tin and graphite. In the friction article, which may be made round, segmental or rectangular, as desired, the layer 18 may be built up at its periphery to form a ridge 63 which surrounds the layer 16 and gives some lateral support, to prevent it breaking away at an excessive rate, but being of such hardness that it will not score or otherwise damage the opposing friction material.
Patent GB-489800-A (GB)
Title: Improvements in processes for producing protective coatings on metals of the iron group and their alloys
IPC: C23C22/72
Filed: 1937-05-03
Abstract: In a process for producing protective coatings on metals of the iron group and their alloys, by immersion in a fused saline bath at temperatures of 475-710 DEG  C., the bath consists of potassium dichromate having a proportion of monochromate which is at least as great as that prescribed by the equilibrium ratio set up between the dichromate and monochromate at the temperature at which the bath is to be used, while at the same time not being so great that the bath ceases to be in a completely fused condition. The desired proportion of monochromate may be added to the bath or may be produced by the addition by corresponding additions of salts, such as potassium nitrate, which are capable of transforming the dichromate into the monochromate.  The potassium salts may be replaced wholly or partially by the sodium salts. Specification 477,836 is referred to.
Patent GB-217570-A (GB)
Title: Improvements in or relating to the manufacture of sulphur containing casting compounds
IPC: C04B28/36
Filed: 1924-05-22
Abstract: Spent material containing ferric hydrate, from gas-works after the removal of sulphur and other impurities is mixed with sulphur, liquefied in containers, and then cast in moulds.  The articles have a bronze-like appearance.  The Specification as open to inspection under Sect. 91 (3) (a) states that other materials containing ferric hydrate, e.g. iron ores, may be employed in place of the spent purifying material from gas-works.  This subject-matter does not appear in the Specification as accepted.
Patent GB-580338-A (GB)
Title: Improvements in or relating to the refining of crude wool grease
IPC: C11B11/00
Filed: 1944-07-03
Abstract: <PICT:0580338/III/1> Crude wool grease is refined by emulsifying the grease by agitating and heating it with water and soap to a temperature above its melting point followed by addition to the emulsion of a relatively small amount of a water-soluble sulphonated fatty oil whereupon the soap, dirt &c. are carried down by the water solution to form a lower layer and the grease to form a supernatant layer which are then separated.  Sufficient soap may be present in the crude grease to effect the emulsification without its addition. Any type of wool grease may be treated such as hydrous crude, dry crude, or acid cracked wool grease, or "Yorkshire grease."  The emulsion may be preliminarily treated with an alkali, preferably an alkali silicate, to remove free fatty acid, and also with a hydrogen peroxide bleaching agent such as H2O2 or a per-salt yielding H2O2 in aqueous solution, e.g., sodium perborate or percarbonate.  The sulphonated fatty oils specified comprise sulphonated castor oil, neatsfoot oil, rape seed oil, corn oil and soya bean oil.  The separated grease is washed with hot water preferably in counter-current, followed, if desired, by dehydration such as by means of a centrifugal separator.  The grease may then be super-refined by treating hot with bleaching earth or decolorizing carbon followed by filtration through a filter press, or either, or in addition, de-aerating to remove odours &c. by treatment in a chamber under vacuum assisted by the introduction of steam, air or inert gas.  A number of washing towers may be used and a preferred type comprises a tower 53 equipped with a number of nesting screens 27 supported by a ring 28 welded to the tower.  Heating coils 18 are provided.  Water and grease admitted at 30A flow upwardly through the tower, the grease being broken into droplets by the screens; the grease collecting at the top is withdrawn by a skimmer 21 and the water overflows to the space between the screens and the tower to be withdrawn at the outlet 23.  The free acids may be recovered from the crude grease by treating the heated aqueous layer, remaining after removal of the grease layer, with dilute sulphuric acid.  The free fatty acids, "degras," rise to the top and may be skimmed off for further purification if desired.
Patent GB-984049-A (GB)
Title: Improvements in or relating to a catalytic exhaust purifier for internal combustion engines
Inventor: CALVERT WILLARD RIGG
IPC: F01N3/34
Filed: 1963-03-29
Abstract: 984,049. I.C. engine exhaust gas purifiers. OXY-CATALYST Inc. March 29, 1963, No. 12681/63. Heading FIB. A catalytic purifier for I.C. engine exhaust gases comprises a housing 4, Fig. 1 having one inlet opening 18 connected to air admixing means 8, an oxidation catalyst 32 combined between inlet and outlet grids 22, 26, means to direct the gas flow towards the inlet grid in a flow path having a decreasing crosssectional area so as to have a substantial velocity component normal to the inlet grid and means to exhaust the gases passing through the outlet grid. In operation the engine exhaust gases entering the air inspirator 8 through pipe 6, draws in air through pipe 14 and the admixed air and gas enters chamber 23 where gases are distributed over the surface of grid 22 and pass through holes 28, catalyst bed 32 and holes 30 into outlet chamber 27 and through opening 56 to atmosphere. To make up for attrition losses in the catalyst bed 32, catalyst pellets flow from reservoir 36 in to the area between grids 22 and 26 through openings 37 in annulus 34. The casing 4 may be of stainless or aluminized steel. Catalysts comprise a carrier or support of an activated metal oxide, e.g. activated alumina beryllia, thoria, magnesia, zircite or zirconia, impregnated with metals or metal oxides having oxidation activity e.g. platinum, palladium, ruthenium, rhodium, silver, chromium, vanadium manganese iron or mixtures of copper and chromium oxides.