baber/WOPTO huggingface dataset:
Patent GB-1359216-A (GB)
Title: Process and apparatus for producing carbon black
IPC: C08K3/04
Filed: 1971-06-08
Abstract: 1359216 Carbon black CABOT CORP 8 June 1971 [8 June 1970] 19362/71 Heading C1A In producing carbon black, a fluid fuel from inlet 2 and air from inlet 14 is burned in a zone 12 at a pressure at least 1À0 p.s.i. greater than the pressure in the subsequent zone 60, and the combustion products discharged from the downstream end of zone 12, the combustion products are then accelerated in zone 28 to a kinetic head above 1À0 p.s.i. and a velocity less than sonic, and then the feedstock is injected via nozzles 44 substantially transversely into the accelerated combustion gas stream in zone 40 so as to penetrate to a depth of at least 15% of the cross-sectional dimension of said stream without substantial dilution thereby, the feedstock being injected as at least one coherent stream comprising a combustible carbonaceous liquid having a carbon content of at least 75 wt. per cent and at a rate sufficient to attain a temperature in the resulting mixture of 2400 F. and carbon forming conditions, the reaction mixture is then maintained in zone 60 for a time sufficient to form carbon black, the resultant product quenched via nozzles 62 to below carbon forming temperatures and the carbon black collection from downstream exit 66. The expression air is used in the present Specification to include any mixture of substantially non-oxidizing gases, e.g. N 2 , CO 2  and argon with oxygen wherein the oxygen concentration of the mixture is between 10 and 50 vol. per cent, and the expression substantially transversely means from 45 to 135 degrees relative to the axis of flow of the combustion gas stream. Preferably the feedstock is introduced as a plurality of streams through a series of nozzles 44 arranged around zone 40. The preferred feedstock is petroleum distillate or cycle stock which is injected to a depth between 15 and 50% of the cross section of the gas stream whilst the kinetic head ratio between the liquid feedstock stream and the combustion product stream is maintained between 1 : 20 and 1 : 200, the pressure in zone 12 being between 1À5 p.s.i. and 10 p.s.i. greater than the pressure in zone 60. The acceleration of the combustion gas may be achieved by flowing the gas through a convergent zone 28 as it is discharged from zone 12. Details of air/fuel ratios, residence times, and degrees of combustion are given. The combustion chamber 12 is preferably made from metal and water cooled. In a further embodiment (Fig. 2, not shown) the combustion chamber comprises a refractory lined enclosure, and air is charged into the chamber via a plurality of radially oriented conduits extending through the refractory, the fuel injector being positioned axially. The zone 40 into which feedstock is injected is preferably of a smaller cross-sectional area than the largest cross-sectional area of zone 12, the cross-sectional area of zone 60 preferably being substantially greater than that of zone 40. The zone 40 may comprise a water cooled metal conduit 42.
Patent GB-300623-A (GB)
Title: Improvements in or relating to dyeing machines
IPC: D06B5/26
Filed: 1928-07-04
Abstract: 300,623. Soc. Karpeles FrÞres. Nov. 17, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Treating substances with liquids.-In a centrifugal dyeing machine, the materials such as felt, cloth or the like are introduced between two cones mounted to rotate, the inner cone being perforated. The perforated cone 11 is riveted to a ring 14 having a rim 19 secured by clamps 20 to a flange on the outer cone 12. The cones are supported by arms 15 from the shaft 16 driven by the electric motor 17. The cones are supported in the vat 1 which contains the dyeing liquid heated by the steam pipe 7. The motor and cones are supported on the rope 24 and counterbalanced by the weight 26; guide rods 27 are provided so that the cones may be raised easily. The felts or cloths are placed round the outside of the cone 11 and are held in position by the outer cone 12. The cones are secured together by the clamps 20 and are then dropped into the vat. While the cones are rotated the heated liquid is drawn by the pump 6 through the pipe 5, and is passed through the pipe 29 and dropped into the inner cone. It is caused by centrifugal force to rise up this cone, to pass through the felt or cloth material, and to pass through channels in the ring 14 back into the vat 1. The steam pipe 7 may be replaced by a gas burner directly below the vat. A device 30 may be included in the pipe 29 to contain samples of the material, and the outer cone 12 may be perforated or may be constructed of wire netting so that the liquid may be discharged into the vat straight from the materials. In a modification the vat has a central opening 32, Fig. 5, in which rests the outer cone 12. The cones are driven from below and the casing is closed by a lid 39. The perforations in the cone or cones may be arranged to produce definite patterns or shadings.
Patent GB-626804-A (GB)
Title: Improvements in electric liquid heaters
IPC: F24H1/10
Filed: 1947-07-21
Abstract: 626,804. Electric water heaters. HARBRIX INDUSTRIES, Ltd., HARDIE, J. P., and SCARISBRICK, R. F. July 21, 1947, No. 19413. [Class 39(iii)] An electric liquid heater comprises a chamber 26 having an inlet 24a, an outlet 27, and a number of laminar, individually insulated resistance heating units 36 closely spaced to one another and to the walls of the chamber 26. The heating units 36 are in two groups, each of which is secured to an opposite wall of the chamber 26 whereby each unit is disposed between two opposite units in interleaved manner. Each unit 36 consists of a nickel-chrome resistance wound on a mica former and covered by a mica plate on each side, the unit being completed by a copper sheath. Water enters the casing 11 at 13a and, when a spindle 17 is withdrawn, forces a piston head 23 against a spring 17b in the spindle, to open the valve 23 to flow through the chamber 26 to the outlet 27. Water pressure acts on a diaphragm 42 to cause a piston 44 to tilt a mercury switch 39 to energise the series connected heaters 36. A lamp 47, observed through a window 50, and a fuse 49 are shunted across the heaters 36.
Patent GB-299490-A (GB)
Title: Improvements in devices for delivering liquids
IPC: B67D7/64
Filed: 1927-07-22
Abstract: 299,490. Livesey, J. W., Fenn, A. G., and Mason, T. F. July 22, 1927. Actuating by air and liquid pressure; stroke, varying; measuring-devices.-Apparatus for delivering oil &c. in measured quantities comprises a cylinder 1 provided with a piston 18 connected by a rod 23 to a power piston 26 in a cylinder 27. The liquid enters the cylinder 1 from a pipe 8<a> through a port 8 controlled by a slide valve 9 and lifts the pistons 18, 26. For the return stroke, compressed air is admitted to the upper end of the cylinder 27 by a pipe 46. The air admission is controlled by a valve 56 which is opened through a lever and cam by the slide valve 9 when the latter is moved to bring its port 10 into register with the delivery port 7. The air then moves a piston valve 45 at the top of the cylinder 27 and enters the cylinder through a port 51. Specification 297,184, [Class 135, Valves &c.], is referred to.
Patent GB-1101504-A (GB)
Title: Process and extruder for extruding thermoplastic material
IPC: B29C48/10
Filed: 1965-05-10
Abstract: 1,101,504. Extruding foamed polystyrene. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 10 May, 1965 [12 May, 1964; 30 June, 1964], No. 19656/65. Heading B5A. Foamed polystyrene is made utilizing an extrusion moulding machine which comprises a spider having legs 14, 14a, a heat exchanger 15 carrying fins 28, and a mandrel 13. Cooling fluid, e.g. water, circulates in exchanger 15 via passageway 25, tube 24, annulus 26 and passageway 27 and in mandrel 13 via passageways 25 and 31, coil 29, tube 33 and passageways 34 and 27. Barrel 10 and barrel extension 12 are simultaneously cooled by fluid flow in channels 18 and 21. As shown, mandrel 13 has an inflation line 36 and a flared end which forms with extension 12 an annular orifice 17. The tube produced is particularly intended for use in a blow moulding operation. In a second embodiment, Fig. 2 (not shown), mandrel 13 is dispensed with and fins (43), which may be of rectangular or streamlined cross-section, Figs. 3 and 4 (not shown), are positioned on the heat exchanger (42) and/or on the inner wall of barrel (37) or nozzle (39). The barrel fins may be individually cooled, Fig. 7 (not shown).
Patent GB-459531-A (GB)
Title: Improvements in or relating to the manufacture of cellulose
IPC: D21C3/26
Filed: 1935-07-10
Abstract: In the manufacture of cellulose from wood, straw, grass, &c., the materials are first treated with bisulphite at 90--120 DEG  C. under super pressure preferably a pressure exceeding by at least ten atmospheres the vapour pressure of the liquid, and then with dilute alkali at 90--130 DEG  C. under similar super pressures.  The bisulphite solution preferably contains a relatively small proportion of free sulphur dioxide, and the treatment is relatively prolonged, for example, for 80--120 hours; and for the dilute alkali treatment, a solution of caustic soda of 0,5--2,0 per cent strength is suitable. Before the bisulphite treatment, the wood &c. may be subjected to resin-extraction as by very dilute alkali or an organic solvent; and after the second stage of the treatment, the materials may be treated with cold alkali of 12--20 per cent strength, and to a bleaching treatment. The cellulose obtained is suitable for the manufacture of paper and of cellulose derivatives.  Specifications 263,938 and 312,098, [both in Class 2 (ii)], are referred to.
Patent GB-742462-A (GB)
Title: Improvements in or relating to window assemblies
IPC: E06B3/34
Filed: 1950-08-08
Abstract: 742,462. Windows; roofs. MOUCHLY, J. Aug. 8, 1951 [Aug. 8, 1950], No. 19728/50. Classes 20(3) and 20(4). A window assembly comprises a first framework 21 having an inwardly directed flange the inner periphery of which defines a rectangular opening, a base portion 20 having an outwardly directed flange 20b overlapping the inwardly directed flange of framework 21 and having side pieces 20a extending through the rectangular opening, means 23 releasably securing the base portion 20 to the first framework 21, an outer frame 25 having side pieces 25a overlapping the outer surface of the side pieces 20a of the base portion and having an inwardly directed flange 25b, means 26, 27 for supporting a window pane 24 from the latter flange, and means 28, 29 selectively securing together the outer frame 25 and the base portion 20. The framework 21 has two short angle sections 22 welded thereto, and the lower flange 20b of the base portion rests on the V between parts 21 and 22. The two spaced panes 24 are supported by W-section metal beading 26 which is sprung into position and putty. &c. 27. Two brackets 28 each comprise a strap 28a pivoted by a screw 28b on a web 28c fixed to frame 25, and studs 29 fixed to the base portion 20 run in slots 28d in the strap having catch positions 28e. The frame 25 may thus be opened as shown in full lines in Fig. 4, or by lifting the bottom edge of the frame clear of the base 20 and framework 21 may assume the position shown in broken lines in Fig. 4. Alternatively by releasing catch 23 the base 20, containing frame 25, may be swung inwardly about its lower edge, for cleaning, &c., or may be removed bodily. In Fig. 1 the window is shown fitted to a building wherein the prefabricated end compartments 10, 11 have roofs or shutters 12 sloping downwards from the roof 13 of the centre part and extending beyond the windows 14 which slope inwardly from the roof to the wall 15. The roofs 12 are hinged to the centre roof 13 and may be swung upwardly and secured in position 12a. The roofs 12 are preferably of light weight metal and painted white for minimum heat absorption. An imaginary line between the edge of the roof 12 and the bottom edge of the window 14 makes an angle of at least 45 degrees with the vertical so that direct sunlight cannot enter the room when the sun is above about 45 degrees, only reflected light entering through the window.
Patent GB-1235156-A (GB)
Title: Preparation of isocyanates
Inventor: KOZJUKOV VLADIMIR PETROVICH
IPC: C07C263/10
Filed: 1968-04-26
Abstract: 1,235,156. Isocyanates. V. P. KOZJUKOV, V. F. MIRONOV, and V. D. SHELUDYAKOV. 26 April, 1968 [26 April, 1967; 16 June, 1967], No. 19871/68. Heading C2C. [Also in Division C3] Organic isocyanates are prepared by phosgenating N-silyl-substituted primary amines at a temperature of from - 80‹ to 250‹ C. The products have the general formula R(NCO)a, where R is an alkyl, alkenyl, alkinyl, aryl, alkaryl, or aralkyl group which may be unsubstituted or may contain elements of Groups IV to VII. Examples 1, 2 and 3 describe the preparation of methyl isocyanate from N- methylaminotrimethyl silane, bis-(trimethylsilyl) methylamine and a mixture of silazanes respectively. The preparations of isobutyl, allyl and phenyl isocyanates are also described.
Patent GB-275237-A (GB)
Title: Improvements in or relating to steam turbine blades
IPC: F01D5/30
Filed: 1927-07-27
Abstract: 275,237. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). July 31, 1926, [Convention date]. Blades. - Turbine blades a made from drawn profile bars have the edges of their notched roots b upset in a shaper so as to thicken and strengthen the surface c which engages the undercut part of the slot in the blade wheel rim. The middle portion of the blade is not thickened.
Patent GB-1144822-A (GB)
Title: Improvements in windscreen wipers for vehicles
IPC: B60S1/38
Filed: 1966-05-06
Abstract: 1,144,822. Windscreen wipers. ROBERT BOSCH G.m.b.H. 6 May, 1966 [7 May, 1965], No. 20009/66. Heading A4F. A windscreen wiper strip 1<SP>1</SP> which is provided with at least one stiffening rail 20 and is of rubber or the like is of triangular cross-section so that, when in use, a wiper lip 14<SP>1</SP> which projects from the widest portion 16<SP>1</SP> of the wiper strip 1<SP>1</SP> is urged by air flow V towards a windscreen to be wiped. In the embodiments, the wiper lip 14<SP>1</SP> is arranged to project from the base of the triangular portion either centrally (Fig. 2) or asymmetrically (Fig. 8) thereof, the wiper strip being gripped by inwardly projecting ends of claws 7 on harnesses 5. In each embodiment, the harnesses 5 are pivotally connected to a main harness which is releasably connectable to a wiper arm (3) (Fig. 1, not shown) by a clip (9).
Patent GB-504242-A (GB)
Title: Improvements in machines for drying tea leaf or the like
IPC: F26B15/14
Filed: 1938-07-07
Abstract: 504,242. Conveyers. BRYDEN, J. July 7, 1938, No. 20082. [Class 78 (i)] [Also in Group XIII] In tea-drying apparatus of the kind comprising superposed conveyers with sprocket wheels in a chamber with an open top so that tea fed on to horizontal, perforated, pivoted trays 4 in the top of the uppermost conveyer fall at the end of the run 7, where each tray turns to a vertical position, on to the inner surface of the horizontal trays 5 of the lower run of the same conveyer, the trays of which near the end of the run turn vertical to deposit the tea on the next lower conveyer, so passing to the bottom of the chamber, up or down which hot air passes through the trays; in order to prevent air passing between the trays when vertical, an airtight tea-transferring valve is placed at these points 7 between the runs of the conveyers. The valve, which is rotary, semirotary or reciprocating, may comprise a rotating part 1 in a cylindrical housing 2. An additional sprocket wheel 3 may increase the distance between the upper and lower surface of the conveyer. Baffles are placed between the ends of the conveyers and the sides of the chambers and with a fixed, pivoted, or semi-rotating baffle 6 placed as shown prevent air leakage round the conveyers. Indian Patent Specifications 20104 /33, 23828 /37 and 23831/37, are referred to.
Patent GB-148182-A (GB)
Title: Improvements in or relating to the reception of continuous electric oscillations
IPC: H04B1/16
Filed: 1920-07-09
Abstract: 148,182. Ges. fiir Drahtlose Telegraphie. Oct. 15, 1915, [Convention date]. Wireless telegraphy.- Reception apparatus for continuous waves comprises an oscillatory circuit tuned to the incoming frequency and an electromagnetically - operated vibrating interrupter which, when operated, diverts the highfrequency energy into a circuit including a telephone. The frequency of the interruptions is small compared with the oscillation frequency, and the frequency of the: note heard is' dependent on both frequencies, and is preferably less than the interrupter frequency. As shown in Fig. 1, the circuit LC, coupled to the aerial 1 and tuned to the wave frequency, includes an interrupter K which, when open, puts a telephone T into circuit. In a modification, the interrupter K is in series with the telephone in a circuit connected across the condenser C, the telephone being itself shunted by a condenser. The, interrupter is arranged to put the telephone. T in circuit for a short interval compared with the time it is disconnected. At each connexion of the telephone T a pulse of current passes through it. and the direction and amplitude of this pulse vary according to the phase of the high-frequency current at the moment when the connexion of the telephone occurs. The current thus obtained through the telephone is found to comprise the combination of a number of alternating currents of different frequency. These various frequencies can be determined by taking the difference between the wave frequency and the various multiples of the interrupter frequency. At least one of the frequencies thus obtained is less than the interrupter frequency, and this lowest frequency is audible and is of greater strength than the higher tones. The interrupter may be controlled by a thermionic generator.
Patent GB-1242984-A (GB)
Title: Method of treating a surface of a glass article
IPC: C03C21/00
Filed: 1970-04-28
Abstract: 1,242,984. Treating glass surfaces. FORD MOTOR CO. Ltd. 28 April, 1970 [29 May, 1969], No. 20234/70. Heading C1M. The surface of a glass article 21 is immersed in a liquid bath 19 of a mixture of a (molten) ion-exchange medium for the glass and a silicone, silane or fluorocarbon, and heated so as to exchange ions from the ion exchange material with ions from the glass, while at least part of the silicone, silane or fluorocarbon is carried over to the glass surface. The silicone, silane or fluorocarbon may comprise from 0À1 to 0.5 weight per cent of the mixture and may be e.g. methylphenylpolysiloxane or methyl (1% beta-naphthol) polysiloxane. The glass may be a soda-lime glass and the ion exchange medium KNO 3 . The ion exchange may be carried out at about 900‹ F.
Patent GB-1435131-A (GB)
Title: Electrical duct floor box
IPC: H02G3/18
Filed: 1973-04-27
Abstract: 1435131 Junction boxes SALAMANDRE METAL WORKS Ltd 1 April 1974 [27 April 1973] 20277/73 Heading H2E An electrical duct floor box comprises a box 2 with a bezel 10 mounted on flanges 8, the bezel having grooves 11, 12 to receive ribs 15, 16 on the removable lid 14 and each flange having an extension 9 for keying into the floor. Electrical ducts (not shown) can be connected to plates 6 forming part of duct-shaped portions 5 giving access to the box 2 via openings 4. The bezel 10 is secured to the flanges 8 by a screw (not shown) at each corner, the screws entering captive enclosed nuts (not shown) beneath the flange. The lid and bezel may be aluminium castings.
Patent GB-1341593-A (GB)
Title: Treating a thin magnetic film deposited on a substrate and  exhibiting a uniaxial anisotropy
IPC: H01F41/14
Filed: 1971-04-19
Abstract: 1341593 Annealing in a magnetic field SOC HONEYWELL BULL 19 April 1971 [30 Jan 1970] 20288/71 Heading C7N [Also in Division H1] To reduce the anisotropy field without changing the magnetic dispersion angle, a thin magnetic film, with uniaxial anisotropy, which is deposited on a substrate is annealed in the presence of a magnetic field, parallel to the surface of the film which is periodically displaced between two directions symmetrically disposed about the easy magnetic axis, but not so far displaced as to be parallel to the hard magnetic axis, and then slow cooled. The annealing may be effected in a neutral gas atmosphere (e.g. N 2  or Ar); the applied field may have an intensity at least twice that of the anisotropy field of the film prior to annealing and the number of displacements during annealing should be at least 200. The magnetic field may be made by vector addition of a steady field in the easy direction and an alternating field in the hard direction, which latter may be varied continuously or discontinuously, (See Division H1).
Patent GB-498692-A (GB)
Title: Improvements relating to soap
IPC: C11D9/38
Filed: 1937-07-22
Abstract: A soap suitable for laundry or toilet use is made by adding to ordinary soap while in a molten or softened state, the viscid matter naturally contained in seaweed, especially seaweed pods. For example, molten or plastic yellow soap is mixed with 12 per cent of the viscid seaweed fluid obtained by lacerating the pods, and pressing.  Small amounts of turpentine and mustard may be added to the soap. Specifications 15228/94 and 8090/00, [both in Class 91], are referred to.
Patent GB-1307043-A (GB)
Title: Electrical insualting assembly for use in electrically insulating  two connected tubular members
IPC: F16L25/03
Filed: 1971-04-19
Abstract: 1307043 Pipe couplings K BRAUN 19 April 1971 [23 Jan 1970] 20319/71 Heading F2G Two flanged pipe ends, wherein a collar 9 on one pipe end extends over the flange 16 of the other pipe end, are coupled together and electrically insulated from one another by an insulating ring 3 having a widened inner margin 14 located in recesses in the flanges 15, 16 and an outer margin axially extending over the flange 16 of the other pipe end and engaging with an insulating bush 4, which has an axial extension and is pressed against the flange 16 by a pressing ring, 6 or 10, located in the collar. The pressure ring is either screwed into the collar 9 as 6, Fig. 4, or is of spring steel and comprises radial teeth which bite into collar 9 as 10, Fig. 2; the ring is covered by an insulating ring 7 which may be L-shaped with one limb extending over the end of the collar 9. The insulating ring 3 has grooves with sealing rings, and, to avoid relative rotation of the flanges 15, 16 and ring 3, the ring has circumferentially spaced semicircular projections 19 located in recesses in the flanges or the ring has similar semicircular recesses accepting discs 8 which also locate in flange recesses. Additionally, a pin may extend radially through the collar 9 into the ring 3. The collar 9 and flange 15 may be integral. The insulating rings 3, 7 and bush 4 are of injection moulded plastics, e.g. nylon.