baber/WOPTO huggingface dataset:
Patent GB-282006-A (GB)
Title: Improvements in devices for supporting heat insulation
IPC: F16L59/12
Filed: 1927-09-19
Abstract: 282,006. Dyckerhoff, E., and Schmidt, E. Dec. 8, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Nonconducting coverings for heat.-A device for supporting heat insulation on pipes, boilers, and other curved surfaces consists of a series of spacing members flexibly connected together so that they may be applied to surfaces of different curvature. The members b, Figs. 2 and 3, are curved to fit closely together and are threaded on a flexible metal band a. Alternatively, the members b, Fig. 5, may interlock and be hinged together by a continuous wire a or by separate pins, or each member may be formed with connecting parts for engagement with adjacent members. The form of the members b may be varied as desired.
Patent GB-1270792-A (GB)
Title: Improvements in and relating to an apparatus for detecting or measuring a dimension
Inventor: SYKE GEORGE
IPC: G01B11/08
Filed: 1968-05-23
Abstract: 1,270,792. Measuring dimensions photoelectrically. BRITISH IRON & STEEL RESEARCH ASSOCIATION. May 2, 1969 [May 23, 1968J, No. 24628/68. Heading G1A. In a method of detecting or measuring a transverse dimension of an elongated object, a lens is used to form images of two boundary portions of the object, each image beam is caused to scan across a slit in front of both sensors and a measure of the transverse dimension is derived from the electrical outputs of the sensors. The embodiment shown relates to the measurement of the diameter of a hot bar B (which may be illuminated from behind) as it emerges from a rolling mill. The lens comprises a two part lens L and the image beams are deflected at D to effect scanning by a rotating mirror e.g. as in Specification 1,270,791. Each beam scans past slits S 1  or S 2  associated with photo-cells V 1  and V 2 .
Patent GB-808639-A (GB)
Title: Improvements in and relating to the oxidation of sulphur dioxide to sulphur trioxide and catalysts therefor
Inventor: DAVIES PHINEAS
IPC: C01B17/79
Filed: 1956-08-13
Abstract: A catalyst for the oxidation of sulphur dioxide to trioxide is prepared by impregnating a freshly-prepared silica gel containing sodium and/or potassium ions with freshly-precipitated vanadium pentoxide containing sodium and/or potassium ions, drying, treating with sulphuric acid and calcining, the amounts and compositions of the reactants being chosen to give a product containing 6-9 per cent vanadium pentoxide, 6-10 per cent potassium oxide and 1.5-6 per cent sodium oxide.  Calcium or barium ions may also be introduced by washing the silica gel, before impregnation, with lime or baryta water.  Freshly prepared silica is defined as silica gel which has not been allowed to dry out, i.e. it is used immediately after precipitation or is stored in an unfiltered state under conditions such that there is no loss of water.  Additional quantities of silica, e.g. kieselguhr, up to 10 per cent of the total weight, may be introduced into the catalyst by mixing in after the impregnation step.  The silica gel preferably contains sodium ions and is precipitated from sodium silicate solutions by addition of ammonium or aluminium sulphate, ammonium, sodium or magnesium acetate, ammonium bicarbonate, sodium carbonate, ammonium, sodium or calcium chloride, an alkali such as ammonia or an acid such as sulphuric (to a pH not less than 8).  The gel is then washed to give the desired sodium content.  The vanadium pentoxide preferably contains potassium ions and is prepared by dissolving vanadic acid in aqueous caustic potash or caustic potash and soda and sulphuric acid is added to give a red precipitate which is slurried with the silica and dried by removing supernatant water by evaporation and then heating the paste to 100-120 DEG  C.  The product is treated with aqueous sulphuric acid, preferably containing 10 per cent by weight of acid, in an amount sufficient to wet the catalyst, e.g. 1 litre per kilogram of catalyst.  The mixture is redried and calcined at 300-400 DEG  C. and may then be pelleted; alternatively if it is to be used in the fluidized state it may be introduced into the reactor prior to calcination and calcined in situ.  The catalyst may be further activated by treatment with air at 550 DEG  C. for 6-12 hours and stabilized by treatment with a reaction mixture at 650 DEG  C. for one or more periods of 18-24 hours.  The advantage of the catalyst over previous catalysts is particularly noticeable at 380-460 DEG  C. as is illustrated by the examples.  The Provisional Specification (24681/56) also refers to catalysts containing silica and compounds of vanadium, potassium and another alkali metal which need not be treated with sulphuric acid.  This subject-matter does not appear in the Complete Specification.
Patent GB-847222-A (GB)
Title: Method of and apparatus for separating out water, especially from liquid fuels
IPC: C10G33/06
Filed: 1956-08-13
Abstract: 847,222. Filters. FAUDI FEINBAU G.m.b.H. Aug. 13, 1956 [Aug. 16, 1955], No. 24703/56. Class 46. A method of separating water from liquid emulsions in which the water has a higher specific weight, including the step of passing the emulsion through a very fine filter of cardboard discs having a porosity of up to five microns and then through a second filter of the same or coarser porosity impregnated with a water repellant. In the embodiment shown, a housing 1 is divided by a partition 2 into two chambers each of which houses a filter element, the very fine filter element 4 being in one chamber having the inlet 3 while the water repellant filter 8 is housed in the other chamber having the outlet 10. The two chambers are in communication through the central tube 6 of the filter 4. In a modification the first filter may be of the in-flowout type in which case the partition 2 is omitted, and the filter 4 may be formed from cardboard discs of decreasing diameter while the filter 8 is formed of discs of increasing diameter. In a further modification the first filter may be arranged centrally of the housing with the second filter or filters arranged around it. Baffles may be provided between the two types of filters.
Patent GB-925279-A (GB)
Title: Waveguides
Inventor: SWIFT FREDERICK GARCIA
IPC: H01P1/04
Filed: 1961-07-07
Abstract: 925,279. Waveguide couplings. STANDARD TELEPHONES & CABLES Ltd. July 7, 1961, No. 24719/61. Class 40 (8). [Also in Group XXVIII] A coupling device for a pair of waveguides 1, 2 of round external configuration includes a groove 3 in the surface of one of the guides, a ring 5 fitting into the groove and projecting above it, and an axially movable collar 7 arranged to engage the ring and to engage a securing member on the other waveguide. As shown, the second securing member 8 forms part of a similar arrangement on the guide 2. The two securing members 7, 8 may be screwed together or, if they are provided with flanges, bolted together. When bolts are used, the flanges must be spaced by a certain amount to ensure that the abutting ends of the waveguides engage with sufficient pressure. Gaskets or shims may be inserted between the waveguides. The rings and grooves may be of any convenient section and the rings may consist of one or more segments. The securing member 8 may be made integral with the waveguide 2.
Patent GB-1008701-A (GB)
Title: Improved slot-cutting tool
IPC: B23C5/10
Filed: 1963-06-21
Abstract: 1,008,701. Cutters. J. W. DOWNER. June 19, 1964 [June 21, 1963], No. 24727/63. Headings B3C and B3K. A slot - cutting tool comprises a helically-fluted cylindrical milling - cutter with its end ground to provide a drill tip. The shank has a threaded portion 1a. The tip may have a projecting point 9, Fig. 4, such as in Specification 825,308.
Patent GB-1308758-A (GB)
Title: Unloading device for grain tank on a combine harvester
IPC: A01D41/12
Filed: 1971-04-19
Abstract: 1308758 Harvesters DEERE & CO 19 April 1971 [20 March 1970] 24842/71 Heading A1F [Also in Division B8] To empty a saddle-shaped grain tank 1 of a combine harvester two sets of screw conveyors 10, 11, one running along the bottom of each pocket of the tank, feed the grain to transverse screw conveyors 15, 16 both feeding into the elevating screw conveyor 19 which delivers the grain into entry chamber 20 of screw conveyor 21 from which it is discharged rearwardly or to either side of the combine by rotating the conveyor 21 about vertical axis 22 located roughly in the central longitudinal plane of the combine. The conveyors 10, 11, 15, 16 are driven as shown in Fig. 1 from drive M2 and conveyors 19, 21 may be driven from the same source via the shafts of conveyors 15, 16 or separately from drive M2. Conveyor 21 is rotated by further drive means which like drive M2 may be hydraulic. In one embodiment, Fig. 2, conveyor 21 is mounted via chamber 20 on swivel pin 32 in fixed bearing 33 and carries rollers 34, 35 and 36, 37 running on fixed plate 61 to counteract the tilting movement of the conveyor. The shaft of conveyor 19 is connected via universal joint 14 to one end of double bevel gears 44 and that of conveyor 21 to the other end via gearing 54 to 60. The bevel pinions 49a, 49b of the gears 44 may be freely rotatable on shaft 45 which also passes through half joints 46, 47 to form a pivot for conveyors 19, 21. Shaft 45 may be extended downwards, and connected to one of the pinions 49a, 49b to drive a rotary paddle in chamber 20. In the second embodiment, Fig. 5, a shaft 64 carrying paddle 70 extends between and engages, by bevel gears, the shafts of conveyors 19, 21. The delivery end 63a of conveyor 19 engages and rotates within collecting chamber 67 and baffles 68, 69 promote a smooth flow of grain through the joint. Conveyor 19 which is positioned forwardly of axis 22 and aligned longitudinally in use may be swung a little to one side so that conveyor 21 may assume the former position and be locked for transport. Alternatively conveyor 21 may be folded back for transport.
Patent GB-990542-A (GB)
Title: Doffing and donning bobbins in textile processing apparatus
IPC: D01H9/08
Filed: 1961-07-10
Abstract: 990,542. Doffing and donning. DEERING MILLIKEN RESEARCH CORPORATION. July 10, 1961 [July 13, 1960], No. 24899/61. Heading D1D. A doffing and donning arrangement comprises a first carrier 23 having externally engaging holders 25 for full bobbins Bp, and a second carrier 43 having externally engaging holders 45 for empty tubes Be and means for moving one of the carriers individually and both of the carriers as an interengaging unit. As shown the carriers 23, 43 consisting of internesting channel members, are mounted by pairs of cables 15, 17 on a beam 91 which has rollers 93 on rails 19 so as to be movable at right angles to the line of spindles. Capstans 99, 101 which can be driven by motors 95, 97 are associated with the cables so that the carriers may be raised or lowered individually or together. In operation beam 91 is moved either, manually or by power so that holders 25 are positioned above the full packages (see Fig. 5 not shown). Carrier 23 is then lowered and the pneumatic holders 25 operated to engage the full packages. Carrier 23 is then raised and the unit moved at right angles to the spindle line (either by running beam 91 along its rails or by swinging the unit by hand) so that the empty tubes Be are positioned over the now empty spindles. The unit is then lowered and pneumatically operated plungers 49 activated to push the empty tubes on to the spindles. The unit is then raised and beam 91 shifted along its rails to bring the full bobbins to a discharge station where they are released. Provision may also be made at this station to recharge the holders 45 with empty tubes. Guides 65, 67 are arranged on carriers 23, 43 to engage posts 63 adjacent the spindle row and ensure accurate positioning of the lowered carrier. Hydraulic or pneumatic means may be used to raise and lower the carriers in place of motors 95, 97. Specifications 902,972, and 902,973 are referred to.
Patent GB-1311391-A (GB)
Title: Centrally controlled telecommunications exchange systems
IPC: H04Q3/545
Filed: 1971-04-19
Abstract: 1311391 Automatic exchange systems SIEMENS AG 19 April 1971 [11 Nov 1970] 24913/71 Heading H4K In an exchange having its equipment arranged in groups each with its own control unit and in which overall control is vested in a programme d data processor, communication between the individual and central controls is effected over data buses that terminate in a buffer where data and associated addresses are stored prior to insertion-into or read-out from central control in a single operation and communication between central controls of co-operating exchanges is effected over dedicated data buses that are terminated in data modems which are accessible by the central controls in the same manner as are the buffer stores. The modems and dedicated data buses are used exclusively for the transmission of dialling information. The system is basically that of Specification 1,205,306 with the addition of explicit description regarding the duplicated buffer stores SS1, SS2 and the feature of duplicated data buses dz1, dz2 being used as interexchange order wires. So far as possible, all the units, e.g. the local control circuits AS and the equipment groups AF, are arranged on printed circuit boards so that a compact equipment array can be formed simply by plugging the boards into a standard rack assembly (Fig. 4, not shown).
Patent GB-241203-A (GB)
Title: Improvements in and relating to magnetic testing apparatus
IPC: G01N27/90
Filed: 1925-10-07
Abstract: 241,203. British Thomson-Houston Co., Ltd., (Assignees of Gokhale, S. L.). Oct. 8, 1924, [Convention date]. Magnetic tests. - In apparatus for testing magnetic material for flaws &c., in which the material to be tested is passed through a uniform magnetic, field which also threads a test coil, this coil is made up of oppositely wound sections lying side by side in one plane so as to be astatic as regards uniform changes in the strength of the field. The material 20 is passed through the field of an electromagnet 10, in the face of which are inserted three coils 12, 13, 14 forming the test coil. The central section 13 is wound oppositely to the outer sections 12, 14 and has an effective area equal to the sum of the effective areas of the sections 12, 14, which are of equal effective area. The sections 12, 13, 14 are connected in series with a galvanometer 15. A change in the total flux due to variation in the exciting voltage causes equal and opposite electromotive forces to be induced in the test coil sections, no deflection therefore being produced on the galvanometer 15. Motion of the material 20 in the direction of the arrow causes the flux threading the coil 14 to be greater than that threading the coil 12, owing to hysteresis and eddy-currents in the material, but the sum of the electromotive forces induced in the coils 12, 14 remains equal and opposite to that induced in the coil 13, no deflection therefore being produced. This balanced condition, however, is upset when a flaw in the material 20 passes through the air gap, a defection on the galvanometer 15, which is preferably highly damped, being thereby produced. In a modification, the test coil is wound in two oppositely-wound sections enclosing equal concentric areas and having equal numbers of turns. In another modification the coil is wound in four sections. Turbinewheels and similar articles to be tested are mounted on a rotatable pedestal driven bv a motor and vertically adjustable by a hand-wheel. The electromagnet is C-sbaped with adjustable pole-pieces, and is adjustable towards and away from the pedestal. A test coil wound in sections 12, 13, 14 :.s preferably provided in each pole face, the coils being connected in series.
Patent GB-1320265-A (GB)
Title: Water-insoluble yellow monoazo dyestuffs and process for their  manufacture
IPC: C09B67/00
Filed: 1971-04-19
Abstract: 1320265 Disperse monoazo dyes FARBWERKE HOECHST AG 19 April 1971 [24 March 1970] 25012/71 Heading C4P [Also in Division C3] New disperse monoazo dyes of formula wherein R 1  is an alkyl, cycloalkyl or aralkyl radical, X is a carboxylic acid ester or amide group and Y 1  and Y 2  are H or halogen atoms or alkyl or alkoxy groups are prepared by azo coupling. They are used to colour printing inks, lacquers, cellulose esters, synthetic resins (see Division C3) and rubber in yellow shades.
Patent GB-318999-A (GB)
Title: Improvements in and relating to a process for increasing the resistance to corrosionof aluminium alloys
IPC: B32B15/01
Filed: 1929-08-16
Abstract: 318,999. Durener Metallwerke Akt.- Ges. Sept. 14, 1928, [Convention date]. Compound forms.-A compound metal form, resistant to corrosion, is made by coating an agehardenable aluminium alloy on one or both sides with a thin layer of Duralumin or other agehardenable aluminium alloy having a different composition from the base metal and the same resistance to corrosion as or a greater resistance to corrosion than pure aluminium but a considerably higher yield point and tensile strength. By the term " Duralumin " is meant any aluminium alloy which contains magnesium and which can be age-hardened by room temperatures after heating at 420‹ C. and cooling to room temperature. In an example, the base metal is an aluminium alloy containing 0.25-1 per cent magnesium, 3.5-5 per cent copper and 0.2-1 per cent manganese with or without other elements and the coating alloy contains 0.2-1 per cent magnesium, 0.2-2 per cent manganese but no copper.
Patent GB-820143-A (GB)
Title: Purification of oxygen
Inventor: HANN VICTOR A
IPC: B01D53/34
Filed: 1957-08-09
Abstract: <PICT:0820143/III/1> Gaseous oxygen effluents containing organic impurities from chemical reactions involving ozone, are purified by regulating the temperature of the O2 to 40-350 DEG  C., subjecting the combustible impurities to catalytic combustion using a supported metal oxide mixture of Co, Mn and Cu, a supported mixture of MnO2, CuO, Co2O3 and Ag2O, a supported mixture of Cerium, Uranium and Copper or a supported Pt catalyst, cooling and dehydrating the O2 and passing the purified O2 to an ozonator and recycling the resulting O2 and O3 to the chemical reaction.  Gases from the chemical reactor 12 pass to a scrubber and liquid seal 14 which may be baffles, mist and fog removers or electrostatic precipitators for removing some of the impurities from the oxygen, may be mixed with series-purified oxygen from a later stage in the cycle through 30 and pass to a heater 16 for temperature regulation.  The gases pass to the catalytic combustion unit 18 where organic combustible impurities are converted into H2O and CO2 and CO2 may be removed by subsequent passage through a cooler 20 and a scrubber 22.  The remaining gases pass through the compressor 25 to the cooler 26 where some water condenses and finally to a dehydrator 28 which may be a solid bed desiccant or a refrigeration unit designed to cool gases to -40 DEG  C. or lower. Purified oxygen is thence returned to the ozonator 10 and resulting ozone-containing gas passed back to the reactor 12.  In order to replenish the oxygen used, "make-up" oxygen is added as required to the system at 32 if the oxygen is pure or at 33 if it contains impurities.  It is desirable to reduce the reaction temperature in 18 by adding stoichiometric amounts of O3 based on the impurity content to the cycle at 34.
Patent GB-1018143-A (GB)
Title: Improvements in or relating to heat exchangers
Inventor: DOBIE ALAN
IPC: F28F1/12
Filed: 1962-06-30
Abstract: 1,018,143. Tubular heat exchangers. NORMAN ISHERWOOD & CO. Ltd. July 1, 1963 [June 30, 1962], No. 25168/62. Heading F4S. A heat exchanger element comprises a fluid passageway, wherein, over the major part of its length between its ends, the passageway is bifurcated and has gills secured to the external surface of the bifurcations. As shown, corrugated gills 19, 20 are secured to the outer edges of bifurcations 17 each comprising a tube of rectangular crosssection, and a common gill 21 is located between and in contact with adjacent surfaces of said tubes. The corresponding ends of the said tubes are located in seats 16a, provided in the ends of connecting sections 16. The other ends of the sections 16 are of semicircular cross-section and fit in complementary relationship into a circular socket formed in a connecting tube 12, the opposite end of which is provided with a terminal spigot 13, also of circular cross-section. Alternative forms of gills shown comprise a single corrugated metal strip 22, the bifurcations passing through suitably positioned pairs of holes punched in the strip (Figs. 5 and 6, not shown) and single plates (Fig. 7, not shown) in which slots are punched as described above, but extending from one edge of the plate, the opposite edge being curved. The socket of the connecting tube may be rectangular or cross-shaped (Figs. 9, 10, not shown), the tubes 17 being secured therein by I-shaped or rectangular blocking members 29 or 31. Other embodiments are described wherein the spigot 13 sockets into the base of the adapter, the adapter being formed by two abutting pressed sheet metal sections (Fig. 12, not shown), or comprising a drum shape element (Fig. 13, not shown). A heat exchanger may comprise a plurality of bifurcated elements, their respective ends being connected into upper and lower tanks or headers by means of the terminal spigots 13, these being perhaps twice as long at one end of the element as at the other.
Patent GB-599409-A (GB)
Title: Improvements in and relating to the electro-chemical examination of solutions and liquids
IPC: G01N27/48
Filed: 1945-09-28
Abstract: 599,409. Electro-chemical analysis. SAMPLE, G. W. Sept. 28, 1945, No. 25271. Convention date, Jan. 23. [Class 37] Relates to the method of electrolytic chemical analysis in which an electrolytic current is plotted against an increasing direct-current voltage from 5, Fig. 3, applied to the electrodes 2, 3 to produce a curve, e.g. Fig. 1, and consists in superposing on the electrodes 2, 3 a constant A.C. voltage from 7 and plotting the amplitude (or R.M.S.) of the A.C. measured at 9, against the direct voltage to produce a curve, e.g. Fig. 2, in which the peaks of the A.C. correspond to the " half-wave " potentials of Fig. 1.
Patent GB-808229-A (GB)
Title: Pump for water-cooled brake
IPC: F16D65/54
Filed: 1956-08-20
Abstract: 808,229. Reciprocating pumps. GOODYEAR TIRE & RUBBER CO. Aug. 20, 1956 [Jan. 30, 1956], No. 25349/56. Class 102(1). [Also in Group XXXIV] In a pump 33 for supplying cooling liquid through passages 32 and 28 and flexible pipe 30 to braking members of a disc brake during a braking operation, water or other cooling liquid under pressure is supplied at all times through pipe 40 to port 39 of pump 33 and through passage 51 in the wall of pump piston 35 and groove 52 in the wall of cylinder 34 outwardly of piston 35 by deflection of the lip of cup gasket 54. The line pressure in pipe 40 is normally low enough that the liquid cannot flow passed the lip gasket 55 to passages 28 and 32. As the vehicle wheel 3 rotates, however, the cam 36 engages the cam follower 38 forcing piston 35 radially outwards. This compresses liquid in cylinder 34 and forces it passed the lip gasket 55 to passages 28 and 32 and also into cylinder 47. As cam follower 38 drops off the rise of the cam 36, spring 57 returns pistons 35 and 48 to a radial inward position and piston 48 on this return stroke forces liquid to passages 28 and 32 so that a double acting pumping action is provided.