baber/WOPTO huggingface dataset:
Patent GB-945814-A (GB)
Title: A method of washing adducts of urea and paraffin wax obtained in the dewaxing of hydrocarbon oils or jellies
Filed: 1961-01-30
Abstract: Adducts of urea with straight chain hydrocarbons obtained in the dewaxing of hydrocarbon oils are freed from residual oil solvent retained when the adduct is washed with the solvent by washing the adduct with a solution of urea, suitably an aqueous solution which is saturated at the temperature at which it is to be used.  In examples, the adducts are obtained by treating (a) spindle oil with an aqueous solution of urea in the presence of methylene chloride, and (b) petrolatum with an aqueous solution of urea in the presence of ethylene dichloride; the adducts are washed with methylene chloride and ethylene dichloride respectively, allowed to drain, and the bulk of the retained oil solvent displaced with saturated aqueous urea solution. Other suitable oil solvents are other halogenated hydrocarbons, aromatics, naphthenes, branched chain hydrocarbons, and straight chain hydrocarbons which do not form urea adducts.ALSO:Residual oil solvents which are retained when the adducts of urea and straight chain hydrocarbons obtained in the dewaxing of hydrocarbon oils are washed with the solvent, are displaced by washing the adduct with a solution of urea, suitably an aqueous solution which is saturated at the temperature at which it is to be used.  In examples, the adducts are obtained by treating (a) spindle oil with an aqueous solution of urea in the presence of methylene chloride, and (b) petrolatum with an aqueous solution of urea in the presence of ethylene dichloride.  The adducts so formed are washed with methylene chloride and ethylene dichloride respectively, allowed to drain, and the bulk of the retained oil solvent displaced with saturated aqueous urea solution. Other suitable oil solvents are other halogenated hydrocarbons, aromatics, naphthenes, branched chain hydrocarbons, and straight chain hydrocarbons which do not form urea adducts.
Patent GB-756584-A (GB)
Title: Process for dyeing and crimping continuous filamentary yarns
Inventor: MORGAN TREVOR
IPC: D06B5/16
Filed: 1954-02-06
Abstract: 756,584. Finishing yarns; crepe fabrics. BRITISH NYLON SPINNERS Ltd. Feb. 2, 1955 [Feb. 6, 1954], No. 3535/54. Classes 120 (3) and 142 (4). [Also in Group VIII] Dyed and crimped yarn is produced by subjecting a thermoplastic continuous filamentary yarn, e.g. yarn composed of synthetic linear polyamide, polyethylene terephthalate, or cellulose acetate, to the successive treatments of twisting to a low degree, i.e. of the order of 5-12 turns per inch; setting said twist; forming into a package (" mock-cake ") by winding on to a collapsible mandrel which is thereafter removed ; dyeing in such package form; optionally, rinsing and applying anti-static lubricant; winding on to a bobbin; further twisting in the same direction and to a high degree, i.e. of the order of 60-100 turns per inch; setting the high twist by a treatment of greater severity than the previous setting and dyeing treatments; back-twisting to the original untwisted condition. The setting may be achieved by heat or heat and swelling agents, e.g. by means of steam applied in a pressure steam chest. Crimped yarns of opposite twist may be folded to produce a balanced bulky yarn. The yarn may be formed into fabrics in which single or pairs of yarns alternate, as to the sense of the twist they contain, in the warp or weft of a woven fabric or in successive course of a knitted fabric.
Patent GB-968287-A (GB)
Title: Improvements in or relating to fume cupboards
Inventor: FIRMAN JACK EDWARD
IPC: B08B15/02
Filed: 1962-01-31
Abstract: 968,287. Fume cupboards. NATIONAL RESEARCH DEVELOPMENT CORPORATION. April 29, 1963 [Jan. 31, 1962], No. 3631/62. Heading F4X. A fume cupboard 1 arranged in a room has a sliding sash window 3 recessed behind the face of the cupboard, a fan 5 for withdrawing air and fumes from the cupboard and a grilled aperture 8 located above the window and communicating with a space 6 above the cupboard, the space being connected to the external atmosphere through an inlet 9 whereby, when the fan is operating, air external to the room is drawn to the window opening as a descending air curtain and into the fume cupboard as obnoxious air is withdrawn. When the fume cupboard is out of use the inlet 9 is closed by a motorized damper 13. The space 6 is also connected through a draught stabilizer 12 to the fume exhaust duct 4, the stabilizer being arranged to open either as the cupboard front 3 is closed down or when there is a pressure drop in the cupboard.
Patent GB-1067841-A (GB)
Title: Improvements relating to spinning machines fitted with stop mechanisms
Inventor: MACKIE JOHN PRINGLE
IPC: D01H13/18
Filed: 1963-01-29
Abstract: 1,067,841. Stop motions; drafting apparatus. JAMES MACKIE & SONS Ltd. Jan. 23, 1964 [Jan. 29, 1963], No. 3648/63. Heading DID. In a spinning machine where at each spinning position there is stop-mechanism comprising a detector 12 which when the yarn breaks sets up a relay action deriving power from a driven part, the retaining pressing roller 4 of the drafting-section is mounted on a loaded pivoted arm 25 capable of limited movement along the sliver-path and held in its operative position by a link 14 capable of being released by the relay action, and a stationary member e.g. a conductor 33 is situated in the path of the sliver to be engaged by the roller or a part moving therewith to trap the sliver when the roller is released. The arm 25 is secured at 26 to the link 14 which is prevented from descending along the sliver path by the engagement of a catch 15 with a stop 16; it is tensioned by a spring 30 which loads the roller 4; and it is pivoted, where it is connected to the link to a lever 29 fulcrummed at 28. When the yarn breaks, the detector swings so that its end 17 comes into the path of a pin 18 on the pressure roller 3. The link, which is pivoted to the detector at 13, is accordingly lifted so that the catch 15, 16 is disengaged, and then, as the pin 18 moves clear of the end 17, is allowed to fall so that it descends along the sliver-path until a second catch 20 engages the stop 16. With the descent of the link, the roller 4 moves downwardly to trap the sliver against the guide 33, the movement being assisted by the rotation of the roller and a component of the tension of spring 30. The parts are reset by operating lever 29, the spring 30 producing a locking- force on the pivot 26. A conductor 9, a fibrecontrol device 6 and a cover 31 on a bar 37 with a locking-toggle 36 and a retaining-catch 38 are provided.
Patent GB-1137372-A (GB)
Title: Improvements in or relating to the manufacture of transistors
IPC: H01L29/47
Filed: 1967-01-25
Abstract: 1,137,372. Semi-conductor devices. SIEMENS A.G. 25 Jan., 1967 [26 Jan., 1966], No. 3703/67. Heading H1K. The base region 2 of a transistor, formed by diffusion into a wafer 1 which comprises the collector region, is thinned prior to formation of the emitter region 3 within the thinned portion. The PNP silicon or germanium transistor illustrated has an alloyed emitter region 3, formed after deposition of a metal dopant layer 6 through a mask 4 of SiO 2  or photoresist. The emitter may alternatively be formed by diffusion from the gas phase, or by epitaxial deposition. The depression in the base region 2 is etched, as is the window 5 in the mask 4. Preferred base and emitter thicknesses are given. In a further embodiment oxide masking and photo-resist techniques are combined, and electrodes are also applied through apertures etched in an oxide mask using a photo-resist.
Patent GB-773883-A (GB)
Title: Improvements in load supporting bars particularly for use in mines
IPC: E21D17/08
Filed: 1954-02-10
Abstract: 773,883. Mine roof supports. FRAME, J. Feb. 8, 1955 [Feb. 10, 1954], No. 3878/54. Class 20(2) In a mine roof support bar 1a of I-section, of the kind which may be releasably connected to a similar bar 1, the releasable connection provides both beam and cantilever strength and comprises at one end of the bar 1a two spaced members 4 secured on opposite sides of the central web and extending beyond the bar, the central web at the end between the two members 4 being chamfered and the central web also being chamfered at the opposite end to cooperate with a chamfered web of the first mentioned end of the other bar 1, and the members 4 being provided with half round cut outs 6 which can register with apertures 10 in the web at the opposite end of the bar 1 for the reception of a round pin 13 by which the bars are releasably secured together. The members 4 are also provided with half round cut outs 5 which in the assembled position of adjacent bars 1, 1a accommodate 'half round members 8 secured to the flanges of the bar 1a. The aperture 10 is reinforced by-members 9 having half round cut outs, secured to the web. Fillet plates 2 may be secured between the bar flanges.
Patent GB-1134522-A (GB)
Title: Rectangular cathode ray tube with protection against implosion
IPC: H01J29/87
Filed: 1966-01-28
Abstract: 1,134,522. Cathode-ray tubes. INTERNATIONAL STANDARD ELECTRIC CORP. 28 Jan., 1966 [3 Feb., 1965], No. 3902/66. Addition to 1,103,470. Heading H1D. In a rectangular cathode-ray tube arrangement protected against implosion as described in Specification 1,103,470 by a strap applied around the maximum periphery of the tube and subjected, after assembly on the tube, to elastic deformation with insertion of a filler material between the strap and tube, the strap is formed in four parts connected at the corners with interlocking joints or hinges. Two opposite parts of the strap may be formed with end lugs which interlock in openings in the ends of the other two parts. The parts of the strap, which may initially be straight or bowed inwards, are pulled outwards at their centres during insertion of the filler material so that the strap subsequently applies compressive forces on the tube. The filler material may be applied in fluid form, e.g. hardenable plastics, cements, resins, alloys or granules in a molten media, or pre-shaped filler pieces may be used and may be attached to the tube before application of a deformed strap thereover.
Patent GB-815507-A (GB)
Title: Improvements in or relating to bladed rotors for axial-flow fluid machines
Inventor: HART RAYMOND
IPC: F01D5/30
Filed: 1954-10-01
Abstract: 815,507. Bladed rotors for axial-flow fluid machines. ROLLS-ROYCE Ltd. Sept. 9, 1955 [Oct. 1, 1954], No. 3914/59. Divided out of 815,506. Class 110 (3). [Also in Group XXV] In a bladed rotor for an axial-flow fluid machine in which the blade elements 14 are secured to the periphery of a rotor disc 10 by means of pivot pins 17 which engage aligned holes in flanges 12, 13 on the disc periphery and lugs 16 forming part of the blade roots, means for preventing disengagement of the pivot pins from the holes in the flanges and lugs comprises radially-extending plates 28 mounted on and having interlocking engagement with the periphery of the disc, the plates overlapping and co-operating with axially-facing end surfaces of the pivot pins to prevent their disengagement in one direction. In a first embodiment, the pivot pins 17 are formed with flanged heads 17c which prevent axial movement of the pins in one direction (to the right as seen in Fig. 2), axial movement in the other direction being prevented by means of plates 28 which abut against the end surfaces of the heads. The outer edges 18a of the plates engage in an inwardly-facing circumferential groove formed in the flange 20 at the outer edge of the flange 13, and the inner edges of lugs 28a of the plates engage in outwardly-facing circumferential grooves in projections 21 on the flange 13. The last plate 28 to be inserted is provided with tabs 28b which after assembly are bent downwardly to engage two of the projections 21 so as to prevent circumferential movement in either direction. In a second embodiment, plain cylindrical pivot pins are utilized and plates such as 28 shown in Figs. 1 and 2 are mounted on both sides of the disc.
Patent GB-1090041-A (GB)
Title: Coherent conductor group for a carrier-current telephone cable
Inventor: HENDRIKS HENDRIK ADRIANUAS
IPC: H01B11/00
Filed: 1965-01-28
Abstract: 1,090,041. Cables. DE STAAT DER NEDERLANDEN TEN DEZE VERTEGENWOORDIGD DOOR DE DIRECTEUR-GENERAAL DER POSTERIJEN, TELEGRAFIE EN TELEFONIE. Jan. 28, 1965 [Jan. 29, 1964], No. 3918/65. Heading H1A. In a coherent conductor group for a carriercurrent telephone cable, consisting of four conductors insulated from each other, each having a substantially flat crosssection, fixed at equal distances round an insulating core of thermoplastics material, each conductor is formed from several non-ferrous component conductors lying against each other and having an equal round cross-section. As shown, the cable has a core of foam polyethylene and a polyethylene jacket and may have a control thread of hard synthetic material on a conductor. The component conductors can be of copper and are twisted together with nylon threads around the core. In another embodiment (Fig. 3, not shown), the core is formed with helical grooves in which the nylon threads and component conductors are laid. The component conductors can be provided with an insulating film.
Patent GB-555351-A (GB)
Title: Improvements in or relating to the treatment of aqueous dispersions of rubber or the like and the manufacture of goods therefrom
IPC: C08J5/02
Filed: 1942-03-25
Abstract: 555,351. Coagulating rubber dispersions. UNITED STATES RUBBER CO. March 25, 1942, No. 3945. Convention date, March 29, 1941. [Class 70]  Aqueous dispersions of natural or synthetic rubber which contain stabilizers of the formula R-SO 3 -M, where R represents an organic radicle containing at least one group having more than 8 carbon atoms and M represents an alkali metal, hydrogen or an ammonium radicle, are rendered sensitive to coagulation by acid by addition of a polyamine such as ethylene, propylene, p-phenylene, m-phenylene, m-toluene or diethylene diamine, diethylene triamine or triethylene tetramine. In forming articles by dipping, spraying or spreading, the polyamine may be added either to the latex or to the coagulant. Numerous examples of stabilizers falling within the formula are given.
Patent GB-207730-A (GB)
Title: Improvements relating to roller bearings for axle boxes
IPC: B61F15/12
Filed: 1923-02-09
Abstract: 207,730. Brierley, F., Greig, R. A., and Chain Roller Bearing Co., Ltd. Feb. 9, 1923. No Patent granted (Sealing fee not paid). Thrust bearings; roller bearings.-In an axlebox having one or more rows of rollers b for taking the journal load, end thrust abutment plugs f, g are driven into or fixed to the end of the axle a and the end of the axle-box, the adjacent faces of the plugs being convex and the opposite faces flat. The rollers b are connected by a chain c.
Patent GB-817803-A (GB)
Title: Improvements in oil burners
IPC: F23C99/00
Filed: 1956-02-09
Abstract: 817,803. Liquid fuel burners. FLORENCE, C. P. Feb. 11, 1957 [Feb. 9, 1956], No. 4063/56. Class 75(1) The combustion air for an oil burner for use in a boiler or cooker or for space heating, passes through a duct heated by the flames from the burner, the oil supply to which is fed down an inclined plane to which the heated air has access on both sides. In the form shown, the burner comprises a rectangular casing containing a sloping plate 7 down which oil from a supply pipe 5 flows into the space below a gauze or foraminated element 10, and mixes with air entering the duct 2, passing below the plate 7, thence above a perforated plate 8, part of the air passing through perforations 8b to mix with the vaporized oil and part through perforations 8a to provide secondary air. The duct 2 is heated by the flame burning above the element 10. The perforations 8a are smaller than the perforations 8b. The element 10 may be mounted in a frame 11 so as to be removable for cleaning.
Patent GB-413778-A (GB)
Title: A combined container and linear measure for material in ribbon form
IPC: B65H35/00
Filed: 1933-02-10
Abstract: 413,778. Boxes for material in tape form. PERFECT CLIP CO., Ltd., Bowling Iron Works, Bradford, and DUNLOP, J. S., Millcrest, Fullwith Mill Lane, Harrogate, both in Yorkshire. Feb. 10, 1933, No. 4180. [Class 18.] A circular container 4 receives the metal or other tape 1 wound on an annular spool 2, the end of the tape being passed through a slot 6 for withdrawal. A linear scale is printed, embossed or otherwise formed preferably on the bottom of the case near the circumference so that the tape withdrawn may be measured. The invention is particularly of use in connection with metal tape clips for hose and the scale may be hose circumferences marked according to various diameters of hose, the zero of the scale starting a little distance from the slot. The space 3 within the spool may serve to store the split pin to wind up the clip. According to the Provisional Specification, silk ribbon &c. may be arranged in zig-zag form in a rectangular box, the ribbon being withdrawn through a slot in the lid.
Patent GB-829852-A (GB)
Title: Improvements in or relating to evaporators
Inventor: SILVER ROBERT SIMPSON
IPC: C02F1/06
Filed: 1958-02-10
Abstract: <PICT:0829852/III/1> In a multi-stage flash evaporator in which fresh and recycle liquid to be evaporated, e.g. water, is preheated in a series of heat exchangers (1A to 25A) by vapours from associated evaporators and by a primary source of heat, e.g. steam in heat exchangers (17 and 22) and is then evaporated in a series of evaporators (25 to 1) at decreasing pressures, the vapours from each stage being used in the heat exchangers as described above, the heat exchangers in at least the later stages of heating (4A to 25A) include separate heaters for fresh and recycle liquid which are then mixed before passing to the evaporators.  The heater 17 for the fresh feed is preferably a deaerating heater where the feed is heated to above the boiling point to expel air and gases.
Patent GB-328976-A (GB)
Title: Improvements in the manufacture of knitted or like gloves of material
IPC: A41D19/00
Filed: 1929-02-08
Abstract: 328,976. Rigden, S. F., and Welsman, F. R. Feb. 8, 1929. Gloves.-Fabric gloves such as knitted gloves are made at those parts liable to wear of a more resistant material than that used for the remainder of the glove. A glove may be knitted of wool and certain parts, such as those parts A that are liable to wear, are knitted of cotton or the like. The inside of the fingers and thumbs, as well as most of the palm, may be knitted of the more resilient material. In a modification the whole of the palm and the back of the fingers may be of cotton or the like. The wool and cotton are knitted together without any seam on a flat bed machine by feeding the two halves of the bed with the dissimilar materials. In the manufacture of a tubular knitted glove the wrists are first made in the usual manner and may be either double or single fabric, but for the hand and finger parts a flat bed machine is necessary having a double cam box and two feeds.
Patent GB-1300861-A (GB)
Title: A method of manufacturing and a cage for a squirrel-cage rotor
IPC: H02K17/16
Filed: 1970-01-29
Abstract: 1300861 Making squirrel cage rotors SIEMENS AG 29 Jan 1970 [30 Jan 1969] 4425/70 Heading B3A [Also in Division H2] A dynamo-electric machine squirrel cage rotor is formed by sliding a slotted magnetic core inside a squirrel cage structure comprising a cylindrical array of bars 41 joined by end rings 42 which project radially beyond the array and have an inner diameter greater than that of the array. Discs are then placed against the ends of the core and the end rings shrunk on to them by an electromagnetic forming process. The squirrel cage structure is of copper or aluminium and is formed by broaching as a single unit. The bars 41 may be straight or helical, and may have a trapezoidal crosssection.
Patent GB-1098212-A (GB)
Title: Air cargo trains, for use in an integrated world transport system using standard freight containers
IPC: B64D39/00
Filed: 1966-02-02
Abstract: 1,098,212. Aircraft. A. P. PEDRICK. Feb. 2, 1966, No. 4544/66. Headings B7G and B7W. [Also in Division F2] An air cargo train comprises a towing aircraft 1 and a plurality of substantially rigidlyconnected towed aircraft 2. The aircraft 1, Fig. 3(A), comprises wings 5 having wing tip nacelles housing turbo-prop units 17 for forward propulsion and jet-lift units 19 mounted at the wing roots to provide vertical lift through swivelling nozzles 25, 27 and forward propulsion through aft jet nozzles. The air intakes 21 to the jet lift engines curve through the interior of the wing to draw air through boundary layer air control slots 23. Each towed aircraft comprises a fuselage and wings (Fig. 4a, not shown), the wings housing only jet-lift power plants of the form used in the towing aircraft and the fuselage being formed with top-opening doors to enable standard-sized containers to be loaded. The rear end of the fuselage of each aircraft is formed with a frusto-conical depression and the forward end of the fuselage of each towed aircraft has a projection to enable a rigid train to be assembled, the last aircraft in the train being provided with a drogue parachute. In use a helicopter is connected to the towing aircraft by a control cable and a human controller in the helicopter controls manually the take-off of the aircraft train. At a suitable altitude and speed the helicopter disconnects and the train is controlled remotely to its destination, where a further control helicopter is re-connected.
Patent GB-994198-A (GB)
Title: Casein-urea and casein-urea cellulose fibres
IPC: D01F4/00
Filed: 1962-02-06
Abstract: Colloidal solutions from which artificial fibres may be spun (see Division B5) are made by mechanically and intimately admixing acid casein and urea for at least 30 minutes until the mixture is homogeneous, adding to the mixture a minor fraction of the volume of water which is necessary to form a colloidal solution and slowly stirring the resulting mixture for at least 90 minutes, adding to the stirred mixture the remaining fraction of said water volume necessary to form the said colloidal solution and stirring for at least 3 additional hours.  The homogeneous mixture obtained by mechanically and intimately admixing acid casein and urea may be prepared in substantially anhydrous surroundings, or, if desired, in the presence of a capillary-active agent, e.g. ethanol.  A solution of cellulose xanthate in carbon disulphide may be added to the ripened solution and intimately admixed therewith before spinning, and in this case the ratio by weight of the viscose to the casein and urea taken together is suitably from 3:1 to 0,5:1.  Specifications 510,131, 510,616 and 511,160 are referred to.