baber/WOPTO huggingface dataset:
Patent GB-1174642-A (GB)
Title: Multi-Converter Pneumatic Steelmaking Plant
IPC: C21C5/28
Filed: 1967-01-26
Abstract: 1,174,642. Steelworks plant. SOC. ITALIANA IMPLANTI S.p.A. Jan.26, 1967 [June 3, 1966], No.3995/67. Heading C7D. A steelmaking plant has at least two converters which are movable between at least one blowing station and at least one charging and discharging station. The converters being operable simultaneously and each alternating between a blowing station and a charging-discharging station so that when one converter is located at a blowing station another one is located at a charging-discharging station. A track on which the converters move between stations may have one or more extensions, one of which may lead to a converter relining station, while there may be provided a secondary track disposed substantially at right angles to the main track and to which the converter may be transferred by suitable means. In a modification there is provided between the central blowing station and the peripheral charging-discharging stations one or more intermediate combined blowing and charging-discharging stations, whereby the number of converters in use at one time may be increased, while in a further embodiment suitable for use where two-stage refining is practised a central blowing station is located between two combined blowing-charging-discharging stations at which the preliminary or afterblowing treatment is carried out. As shown in Fig. 1, converter 207 is undergoing relining at station R, while converters 1, 101 move simultaneously along track 11, converter 107 being discharged fettled and charged at C1 while converter 1 is blown at S, the roles being reversed with 1 at C1 and 101 at S. Track extension D and secondary track 12 permits the interchange of converters.
Patent GB-588422-A (GB)
Title: Improvements in or relating to the manufacture of building bricks or the like
IPC: B28B3/26
Filed: 1945-02-17
Abstract: 588,422. Moulding bricks. POTTER, S. R. Feb. 17, 1945, No. 4074. [Class 87 (ii)] Bricks with blind cavities are formed by extruding clay from the nozzle a into the die b, c, d, sliding the part b, back over the part c sufficiently to allow the wire e to descend and cut off the formed brick, then sliding back the core d and finally sliding the part b right back to allow the brick to drop on to the conveyer or shoot f. Cam, crank, or hydraulic means may be provided for moving the parts b, d and e, and the conveyer or shoot f may be made to rise and fall and, in the case of a conveyer, to operate intermittently. The die may contain more than one recess-forming part such as d. According to the Provisional Specification, the brick may be cut off from the nozzle after the die is withdrawn, the die may have fewer than three parts, and the extrusion apparatus may work intermittently.
Patent GB-1007073-A (GB)
Title: A process for the production of articles from powdered thermoplastic material
Inventor: SKLJARSKY ARON MOISEEVICH
IPC: B29B13/00
Filed: 1964-01-31
Abstract: 1,007,073. Moulding hollow articles. GOSUDARSTVENNY NAUCHNO ISSLEDOVATELSKY INSTITUTE PLASTICHESKIKH MASS. Jan. 31, 1964, No. 4143/64. Heading B5A. During a powder sintering process the mould is vibrated to increase the friability of the powdered material. In particular, hollow articles are formed by introducing powder into a vibrated heated mould to form a fused layer thereagainst, removing the excess powder, and finally heating the layer thus left without vibration to fully melt and fuse it to form the finished article. The mould may be coated with a release agent such as silicone fluid.
Patent GB-1365686-A (GB)
Title: Mixing of particulate and fibrous materials
IPC: B29B7/00
Filed: 1971-02-09
Abstract: 1365686 Mixing fibres T G EVANS and G A RYDER 21 Jan 1972 [9 Feb 1971] 4280/71 Heading B1C Two or more materials at least one of which is fibrous are mixed in an apparatus comprising a dished platform rotated about its vertical axis and having a closely surrounding wall which does not rotate with it but may be stationary, or rotate more slowly, or counterrotate. The preferred peripheral speed of the platform is 400 ft/min. Examples relate to the mixing of glass fibre staple with polypropylene powder, polyester liquid and concrete; asbestos with polypropylene or polystyrene granules; steel wire staple or polypropylene filaments with concrete; wood chips or wood pulp with resin bonding agent; and vegetable fibres with vitamins.
Patent GB-442184-A (GB)
Title: Improvements in and relating to mowing, reaping and binding machines
IPC: A01D63/04
Filed: 1935-02-11
Abstract: 442,184. Reaping &c. machines. HENDERSON, J. S., Meadownay, Maybole, Ayrshire. Feb. 11, 1935, No. 4305. [Class 6 (iii)] To render a knife positioned on the edge of a divider for cutting through tangled stalks of crops safe when not in use the knife is mounted so that it can be turned to position the cutting edge inwards against the divider. As shown a supplementary outside divider 2 is provided with a socket bearing 6 and at the other end with a bracket 7 carrying a pin 8. The knife 3 has a pin 9, round or crosssection at its extremity but with a square cross-section portion a little higher up, mounted on its lower end ; the socket 6 has a co-operating square portion to house the square portion of the pin. The upper end of the knife is provided with a handle 11. the lower part of which has a socket 12 into which the pin 8 fits. A helical spring normally forces the knife downwards so that the squared parts of the pin 9 and its socket are in engagement. By pulling the blade upwards against the pressure of the spring the squared portions can be freed so that the blade may be turned into either the operative position, Fig. 2, or the inoperative position, Fig. 3, being locked in either of these positions when released. A pin 14, projecting from a bracket 13 carried at the middle of the divider engages a socket 15 at the mid part of the knife to stiffen this part.
Patent GB-1213151-A (GB)
Title: Crimping yarn
Inventor: MATTINGLY DENIS ALBERT EDWARD
IPC: D02G1/00
Filed: 1967-01-28
Abstract: 1,213,151. Knit-deknit crimping yam; knitting machines. KLINGER MFG. CO. Ltd. 29 Jan., 1968 [28 Jan., 1967], No. 4316/67. Headings DIC, D1F and D1W. In a process of knit-deknit crimping yarn, undrawn or partially drawn yam is drawn while in the stitched configuration. The yarn may be knitted using a single latched, bearded, or hooked needle, or a plurality of needles. In the machine described yarn passes from a supply bobbin and hysteresis tensions to a single knitting needle (of similar construction to that of Specification 1,121,501) which forms a chain of stitches which passes to feed rolls, then along a first groove and back along a second groove of an electric heater to a pair of draw rolls. Both pairs of rolls comprise a rubber surfaced roll and a driven roll spring urged together. The chains pass from the draw rolls via a feeler, operable on yarn failure or excessive tension to stop the machine, towards a third pair of rolls rotated at a faster speed than the draw rolls to unravel the chain. The bulkiness of the yarn may be increased by an edge crimping or air blast treatment.
Patent GB-565099-A (GB)
Title: Improvements in or relating to alternating current generators whose frequency is proportional to and controlled by a direct current
IPC: H03K4/12
Filed: 1943-03-17
Abstract: 565,099. Telemetering systems. HADFIELD, B. M. March 17, 1943, No. 4370. Drawings to Specification. [Class 40 (i)] [Also in Group XL] A relaxation oscillator, the frequency of which varies linearly with a control voltage and which involves a condenser charged at a linear rate is used as the transmitter of a telemetering system. The wave-form before transmission may be modified to eliminate even and reduce the amplitude of odd harmonics. This is of particular value in multiplex transmission.
Patent GB-878629-A (GB)
Title: Process for the preparation of halogenated esters of carboxylic acids
IPC: C07C69/63
Filed: 1960-02-08
Abstract: Halogenated esters of formula <FORM:0878629/IV (b)/1> where R is alkyl, n is O or an integer, X is chlorine or bromine, and each R1 is hydrogen or alkyl, are prepared by reacting an hydroperoxide of formula <FORM:0878629/IV (b)/2> at a temperature of from -20 DEG C. to +50 DEG C. with a hydrohalic acid, alkali metal halide or alkaline earth metal halide in the presence of a peroxide radical decomposing agent, e.g. ferrous or cuprous salts.  Solvents may be used, e.g. methanol or ethanol, or the hydroperoxide may be added to an aqueous solution containing the halide ion and the decomposition agent.  The hydroperoxides can be obtained by controlled oxidation of the corresponding alicyclic ethers.
Patent GB-410445-A (GB)
Title: Improvements in or relating to separators for liquids
IPC: B04B1/08
Filed: 1934-02-09
Abstract: 410,445. Centrifugal machines. RAMESOHL & SCHMIDT AKT.-GES., Oelde, Westphalia, Germany. Feb. 9, 1934, No. 4410. Convention date, Oct. 25, 1933. [Class 23.] A centrifugal separator has a drum 1 rotated by means of a hollow shaft 2 which serves as the outlet for the separated liquid. A fixed rod 3 passes through the shaft 2 and carries scrapers or skimmers 4 which extend into the liquid and conduct it to the shaft so that no froth is formed. Where a light component, such as cream, is discharged, it passes through the outlets 14. The hollow shaft 2 is connected through a gland 5 to the discharge tube 6. The gland may be sub-divided into two parts 7, 8 separated by a perforated washer 9 with pipe joints 10, 11. The discharge pipe 6 is provided with a manometer 23 and a cock 12 so that the discharge flow can be adjusted and the quantity of cream, passing through the outlets 14, controlled. The blades of the scrapers 4 may be held between end discs, or they may be tubes at the end of a tube which replaces the rod 3. The casing surrounding the drum 1 has a removable cap 19 which can turn on a hinge 20 at the higher end of the inclined face 21.
Patent GB-229668-A (GB)
Title: The manufacture of new dyestuffs of the anthraquinone series
Filed: 1925-02-17
Abstract: Anthraquinoneoxazines are prepared by the simultaneous oxidation and condensation of purpuramide or its substitution products with an o-hydroxy-, o-amino-, or o-alkylamino-benzoic acid, or a derivation thereof having a free p-position to the said o-substituent and reducing to the oxazine the higher oxidation products, probably quinoneimides, first formed.  The oxazines have the probable formula <FORM:0229668/2/1> where X = an amino-, alkylamino-, or hydroxyl-group, and dye mordanted or unmordanted wool in fast blue to green shades; the higher oxidation products dye in the same way, being probably reduced by the textile fibre; the oxazines yield fast lakes, in substance or on the fibre, with salts of heavy metals such as chromium, aluminium, copper, iron, &c.  The oxidation is preferably effected by means of manganese dioxide in sulphuric acid suspension and the reduction by means of sulphurous acid, bisulphite, &c.: the purpuramide may however first be oxidized to a quinonic body and then condensed with the substituted benzoic acid.  According to examples purpuramide is oxidized and condensed with salicylic acid, cresotinic acid, anthranilic acid, or phenylglycine-o-carboxylic acid by means of a sulphuric acid suspension of manganese dioxide, and the product reduced with sodium bisulphite, the progress of the oxidation is followed spectroscopically, the absorption spectra of the oxazines differing markedly from that of purpuramide; the properties of the oxazines and their higher oxidation products are given: in another example purpuramide is first oxidized and then condensed with salicylic acid.  The Specification as open to inspection under Sect. 91 (3) (a) refers also to the production of anthraquinoneoxazines containing halogen, sulpho groups, or methyl groups in the anthraquinone nucleus.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1222337-A (GB)
Title: Continuous casting installation
Inventor: PIETRYKA JOSEPH
IPC: B22D11/128
Filed: 1969-01-27
Abstract: 1,222,337. Continuous casting. SOC. FIVES LILLE-CAIL. 27 Jan., 1969, No. 4464/69. Heading B3F. A multiple continuous casting installation has a number of casting lines arranged side by side, each comprising a vertical, curved or inclined mould 14 and a three-sectioned jacket 16, 18, 20 with guide rollers leading to a withdrawing and straightening set 22, the mould and jacket being mounted on a frame 24 which can be moved on rollers 26 on rails 28, by a jack 54, away from the other frames for change, repair or service. The frames 24 are also stabilized at the top by their rollers (43) which run on girders 38 of a fixed main structure to which the frames 24 are made fast by keyed spindles 30, 32, 34 which can be withdrawn quickly by power means for quick disconnection. Servomotors for controlling stopper rods 44 in the common troughed tundish 10 are supported on a platform 36 and a mechanism 42 for reciprocating the mould 14 is supported on a platform 40. The guide jacket sections 16 and 18 include coolant distributers in a cooling chamber 50, formed by plates at the top of the frame 24, with a vapour extraction pipe and a drain 52. Flexible hoses and quickaction connections for the distributers and the mould coolant circuits facilitate disconnection of a casting line.
Patent GB-575343-A (GB)
Title: Improvements in powder metallurgy
IPC: B22F1/148
Filed: 1944-03-10
Abstract: 575,343. Making coherent masses from metal powder. HARDY METALLURGICAL CO. March 10, 1944, No. 4521. Convention date, July 16, 1943. [Class 82 (i)] A process for producing steel powder for use in powder metallurgy comprises fritting a mixture of fine soft iron particles with fine ferrous alloy particles containing substantial proportion of combined carbon and then subjecting the fritted mixture to mild comminution to produce a powder that is substantially coarser than the original mixture. The soft iron powder may be produced electrolytically and the ferrous alloy powder may comprise cast iron powder or high carbon ferrochrome, all screened through 325 mesh. In one example, two parts by weight of soft iron powder and one part of crushed white cast iron powder containing 3.3 per cent carbon in the form of iron carbide all screened through 325 mesh are mixed for two hours and heated in an atmosphere of commercial hydrogen for five minutes at 800 C. and then cooled. The resulting fritted powder is screened through 100 mesh. For the production of steel objects from this powder, the powder is compressed in a die at 50 tons per square inch to form a compact mass which is sintered for one hour at 1200 C. in commercial hydrogen, cooled to room temperature, hardened by being heated to 1420 F. in a neutral salt bath and quenched in water. In a second example, 15 per cent crushed white cast iron powder containing 3.3 per cent carbon and 85 per cent electrolytic iron powder, all passing 325 mesh are mixed as before and heated in a hydrogen atmosphere for twenty-seven minutes at 750 C., cooled and screened through 100 mesh. Powders screened originally through 200 mesh instead of 325 mesh may be used.
Patent GB-466676-A (GB)
Title: An improved cosy for tea-pots
IPC: A47G19/20
Filed: 1936-02-14
Abstract: 466,676. Tea cosies. ECLIPSE NOVELTIES, Ltd., and FLINTON, E. Feb. 14, 1936, No. 4559. [Class 128] A lid 7, larger than the teapot lid, is provided in a tea-cosy made of an outer metal shell 1 lined with felt or other heat-insulating material 9 and comprising two parts hinged at one side and connected by a fastening on the other side, cut-away parts in the shell accommodating the handle and spout. Specifications 433,597 and 438,545, [both in Group VI], are referred to.
Patent GB-952760-A (GB)
Title: Nonclogging check valve
IPC: F16K15/14
Filed: 1961-02-08
Abstract: 952,760. Valves. UNION TANK CAR CO. Feb. 8, 1961 [April 11, 1960], No. 4639/61. Heading F2V. A check valve for fluids which may contain solid particles comprises a member 12, Fig. 2, provided with an opening 18 adapted to be coupled to a fluid supply conduit for discharge of fluid through the opening, an elongated, flexible valve element 24 having means 32, Fig. 3, for securing its longitudinally extending side margins to the member 12. The element 24 also has one end connected at 46 to the member 12 so that it moves to the dotted line position when open. When a vacuum is applied to opening 18, the element 24 closes the valve by complementally engaging a lining 22 in the member 12. The valve may be made of rubber. To avoid the use of the connection at 46 the element and lining may be formed by a single folded sheet or by two sheets cemented together at one edge. In a further construction, the member has a central opening and the member 24 is open at both ends. Figures 7 and 8 show a valve with a flexible element bent upon itself to provide a lining 322 and a movable element 324. The flexible element has its longitudinal edges secured by clamp strips 332 and is provided with a weight 352 having arms 356 to engage the edge of opening 318 when the valve is closed. One transverse edge of the element 324 may be secured to the member 312 which then has an off-centre opening.
Patent GB-698747-A (GB)
Title: Moving stairway for persons and goods
IPC: B66B23/02
Filed: 1951-02-27
Abstract: 698,747. Escalators. MOERCK, M., and KAMPNAGEL AKT.GES. VORM. NAGEL & KAEMP., [trading as KEHRHALIN KOMMANDIT-GES., F.]. Feb. 27, 1951. [Feb. 27, 1950] No. 4775/51. Class 78 (i). A moving stairway comprising steps i transported by a pair of endless chains m is supported bv interconnected wall members e which are built-up of panels v, w of sheet brass or sheet aluminium and supported through angle sections t, u on beams a, b. Each member e is provided with flanges c, d either integral with the walls or comprising channel beams attached to the walls, whilst inner walls f are rigidly connected with the flanges c. The walls e, f are strengthened by ribs h which support the track rails for the step rollers n and are interconnected by girders k. The endless hand rails are guided on the flanges c and return through apertures r in the ribs h, whilst the chains m are received in recesses u in these ribs. The flanges d are interconnected by a sheet metal panel l.
Patent GB-588031-A (GB)
Title: Improvements in or relating to drive chains and methods of making the same
IPC: F16G13/04
Filed: 1944-03-15
Abstract: 588,031. Driving-chains. MORSE CHAIN CO. March 15, 1944, No. 4825. Convention date, April 30, 1943. [Class 24] In chains of the kind comprising groups B, C of interleaved links 10, the joint pins 11 are cylindrical and co-act with cylindrical bearings 17 in the ends of the links. To prevent whipping, each of the bearings 17 is formed with a radially extending notch 18 and a key 20 passes transversely through the notches in all the links, being retained by washers 12, Fig. 3 (not shown) held by the riveted ends of the pins 11 ; the clearance provided between the keys 20 and the ends of the notches 18 allows flexure of the chain over the sprockets but prevents whipping.
Patent GB-637153-A (GB)
Title: Improvements relating to bearings
IPC: C25D3/56
Filed: 1945-02-27
Abstract: Bearings comprise a bearing layer of a homogeneous copper-indium alloy containing from 1-10 per cent or 80-99 per cent indium, supported upon and bonded to a steel or other backing, or supported upon and bonded to an intermediate layer, which is itself supported upon and bonded to a steel or other backing.  The intermediate layer may be a copper-indium alloy containing 1-20 per cent indium.  The last-mentioned copper-indium alloy may also form an intermediate layer between a steel or other backing and a bearing layer of lead or soft lead alloy.  The copper-indium layers may be electrolytically deposited upon the backing or intermediate layer.  The plated alloys may be heat-treated to vary their hardness.  In the case of a copper-indium alloy containing 17.8 per cent indium heating for one hour at 600 DEG C. softened the alloy from 104 to 65 Rockwell B, while further heating for five hours at 300 DEG C. raised the hardness to 83 on that scale.
Patent GB-654867-A (GB)
Title: An improved method of, and means for, handling biscuits
Inventor: PAGE ALFRED CORNELIUS
IPC: B65G57/00
Filed: 1948-10-21
Abstract: 654,867. Feeding a hopper. WRIGHT'S BISCUITS, Ltd. Oct. 21, 1948, No. 4954/49. Divided out of 654,863. [Class 78 (i)] Apparatus for ensuring that biscuits shall be fed flat into a hopper so as to fall flat and to lie flat within the hopper comprises a surface extending up to the upper edge of the hopper 21 and over which the biscuits are fed forwardly and a roller 22 mounted rotatably and adapted to engage the upper surfaces of the biscuits at a position above and closely adjacent the said upper edge of the hopper whereby the biscuits are maintained flat until their trailing edges emerge from underneath the roller and pass over the edge of the hopper. As shown, biscuits 17 are fed along surface 20 either by pushing each other from behind or by endless conveyer and pass under roller 22 which keeps them level till they have cleared the edge of hopper 21 after which they fall into the outlet.
Patent GB-250716-A (GB)
Title: Improvements in or relating to apparatus for discharging the solid products from retorts and the like
IPC: C10B33/02
Filed: 1925-02-23
Abstract: 250,716. Degenhardt. W. R. Feb. 23, 1925. Discharging.-In retort-discharging apparatus, of the kind comprising a receiving chamber A provided with an outlet shutter A<2> and a movable water-seal door B, the shutter A<2> and seal Bare interconnected so that the former does not begin to open until the latter has moved clear of the chamber A and is closed as the seal approaches, but before it reaches its sealing position. As shown, the seal B moves on inclined rails B<1> and is provided with projecting pins b which engage, when the seal is clear of the chamber A, with forked rods C secured to toothed quadrants C<1> which mesh with similar quadrants A<4> and effect the opening of the counterweighted shutter A<2>. On return of the seal B, the pins b and rods C remain in engagement so that the shutter A<2> is positively moved into its fully-closed position before the seal reaches the end of its travel. A modification is described in which the forked rods C are replaced by plain arms connected directly to the shutter A<2>, the counterweight A<5> being, in this case, arranged so that it does not pass over the dead centre, thereby serving to close the shutter when the pins b move away from the arms C.