baber/WOPTO huggingface dataset:
Patent GB-1350686-A (GB)
Title: Aircraft gas turbine engines
IPC: F02C7/045
Filed: 1971-05-25
Abstract: 1350686 Gas turbine engines - noise attenuation GENERAL ELECTRIC CO 25 May 1971 [4 Sept 1970] 16890/71 Headings F1C and F1G The invention relates to a gas turbine engine comprising a cowling defining a flowpath through a compressor, an annular splitter of aerofoil longitudinal section being disposed concentrically within the cowling between the upstream end of the cowling and the compressor, the invention being described with reference to a gas turbine ducted fan engine in which such annular splitters are disposed in the fan duct. The splitter is shown in Fig. 3 and comprises first and second spaced apart walls 52 there being a plurality of web members 50 extending therebetween so as to define a plurality of resonator type cavities 48. Some of the cavities are provided with openings 54 in the upper wall 52 and the remaining cavities are provided with openings 54 in the lower wall 52, the first series of cavities being completely separated from the second series of cavities. The thickness of the annular splitters is thus reduced compared with prior annular splitters. The fan portion of a gas turbine ducted fan engine is shown in Fig. 1 and annular splitters 30 and 42 in accordance with the invention are disposed in the fan duct upstream and downstream of the fan rotor blades 26.
Patent GB-756099-A (GB)
Title: A process for the manufacture of esters containing phosphorus, oxygen and sulphur
IPC: C07F9/40
Filed: 1954-06-09
Abstract: Esters containing phosphorus, oxygen, and sulphur are obtained by reacting a neutral ester of an acid of trivalent phosphorus with a sultone at an elevated temperature.  The neutral ester may be of the type (RO)3P in which R is an acyclic or cycloaliphatic residue, the products in this case being neutral esters of phosphonic-sulphonic acids.  The neutral ester starting materials may also be esters of alkyl- or aryl phosphonous acids of the formula R1.P(OR)2 or esters of the dialkyl- or diaryl-phosphinous acids of the formula (R1)2P.OR, R1 being an alkyl or aryl residue and R being as defined above. Specified ester starting materials are triethyl-, and trioctyl-phosphite, ethyl-dibutyl phosphite, tricycloalkyl esters such as tricyclohexyl phosphite and tri-(methylcyclohexyl) phosphite, the diethyl ester of phenylphosphonous acid, and the ethyl ester of dibutylphosphinous acid.  Specified sultones are propane sultone, butane sultone, tolyl sultone and 1,8-naphthyl sultone.  The reaction is preferably carried out at 50-180 DEG  C. and inert solvents or diluents may be present.  In examples: (1) propane sultone is boiled under reflux with triethyl phosphite in xylene to yield propane-1-phosphonic acid-3-sulphonic acid triethyl ester; (2) as in (1) except that tributyl phosphite is used, the product being propane-1-phosphonic acid-3-sulphonic acid tributyl ester.  The products obtained from the esters of alkyl or aryl phosphonous acids of the formula R1P(OR)2 are phosphinic-sulphonic acid diesters of the formula (RO)(R1)P(O)R11SO2.OR, whilst the products obtained from the dialkyl or diaryl phosphinous acid esters of the formula (R1)2P.OR are sulphonic esters of a phosphinic oxide of the formula (R1)2P(O).R11.SO2.OR; R11 in each case being the alkylene or arylene radical present in the sultone.
Patent GB-230342-A (GB)
Title: Improvements in or relating to door or like springs
IPC: E05F1/10
Filed: 1924-07-15
Abstract: 230,342. Arnold, H. J. July 15, 1924. Operating, doors by springs.-A tube or spindle 4 is rotably mounted upon the end bracket members 1, 2 for adjusting the tension of the springs 10 by the rotation of a collar 7, one end of the springs being bent at 12 to engage an arm 13 that is in contact with the surface of the door and the other end of the springs engaging a notch 6 of a slot 5 in the tube. The collar is secured to the tube by a key 8, as shown, and the collar is provided with tommy-holes 9 for rotating the tube and for the insertion of a pin 17, which contacts with a plate 18 on the door frame to keep the springs under tension. A roller 19 is fitted to the arms 13 to engage with a, plate 20 on the dcor. An outer cover 30 may be provided. Tn modified constructions, the key 8 may pass lengthwise of the tube 4 to engage the ends of the spring and the collar 7, and the ends 12 of the springs may be directly connected to the roller engaging the door.
Patent GB-260524-A (GB)
Title: Improvements in leg coverings
IPC: A41D17/00
Filed: 1926-07-08
Abstract: 260,524. Wolsey, Ltd., and Breward, W. H. July 8, 1926. Gaiters. - A leg covering, particularly for ladies' use, made of knitted or woven fabrik so as to resemble a stocking and come below the knee when in wear, consists of a gaiter-like leg portion a combined at its upper end with a stocking. like ton b. and at its lower end with a spatlike portion c which is without a side opening and is provided with a buckled strap e or loop of elastic or elastic fabric. The device may be made of tubular form, fashioned or not with or without seams, and the top may be, plain or fancy and integral with or attached to the leg portion, which may be weather proofed. In manufacture, the article may be made by joining by front and back seams h, i two flat pieces of fabric shaped to form the combined leg and spat portions and attaching the top portion by a horizontal seam j. The front of the spat portion may be reinforced by a lining held in place by the front seam h and a binding strip k which also serves to secure the strap &c. in position.
Patent GB-1393261-A (GB)
Title: Paper sheet feeding means
IPC: B65H7/00
Filed: 1972-04-13
Abstract: 1393261 Feeding sheets FUJI XEROX CO Ltd 13 April 1972 [13 April 1971] 17171/72 Heading B8R Sheets are separated from the top of a pile 8 resting on a lifter 1 raised by a spring 5 to press the top of the pile against rotating friction separator rollers 7. Separated sheets are fed over a high-pressure surface 9<SP>1</SP> of a plate member 8 and under a higher-friction roller 10 rotating in the same direction as and in synchronism with the rollers 7 and resting on the member 9 by gravity. In the event of double feed, the lower sheet is held by the member 9 while the upper sheet is fed by the roller 10 beneath guides 13 to stationary register rollers 14, 15, which register the leading edge of the sheet and are then rotated to feed the sheet between them.
Patent GB-170897-A (GB)
Title: Improvements in steam generators
IPC: F22B17/12
Filed: 1920-06-24
Abstract: 170,897. Bussac, G. A. June 24, 1920. Water-tube boilers; tubes, water; settings.-In a boiler having inclined tubes extending vertically between upper and lower rows of transverse headers, the tubes are fitted with inner concentric tubes, through which water returns from the upper to the lower headers, external return tubes being dispensed with. The upper rectangular headers 11, Figs. 4 and 5, are connected by pipes 10, 12 to longitudinal feed-collectors 7 and steam collectors 13, which are connected together by nipples 23. Steam passes from the steam collectors to a main collector 18. Removable heatinsulating panels 14 are fitted above the headers. An inner tube 2, Fig. 1, is supported in an outer tube 1 by tongue-pieces 4 cut out of the inner tube and so bent outwards as to rest on the top of the outer tube. The bottom of the inner tube is held in position by a spider-piece 5 forced into the bottom of the outer tube.
Patent GB-381907-A (GB)
Title: Improvements in or relating to intermediate-frequency thermionic amplifiers
IPC: H03H7/01
Filed: 1932-06-18
Abstract: 381,907. Valve circuits for wireless reception. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. June 18, 1932, No. 17305. Convention date, June 25, 1931. [Classes 40 (iii) and 40 (v).] In an intermediate-frequency thermionic amplifier for a superheterodyne receiver, a tuned series circuit 6, 7 is connected between a step-down output transformer 2, 4 and a stepup input transformer 9, 10.
Patent GB-785207-A (GB)
Title: Improvements in ships' stabilizing fins
IPC: B63B39/06
Filed: 1956-06-05
Abstract: 785,207. Stabilizing fins. SUBERKRUB, F. June 5, 1956, No. 17331/56. Class 113. In a fin for damping the rolling of ships having a permanently symmetrical aerofoil section profile and turnable angularly, the centre line of the turnable shaft 3 with respect to the hydro-dynamic centre of pressure 4 at maximum angles of attack is positioned so that the centre 4 falls behind the centre line of the shaft.
Patent GB-120781-A (GB)
Title: An Improved Fore-axle for Motor Vehicles.
Inventor: ALLEY STEPHEN EVANS
IPC: B60B35/02
Filed: 1917-11-24
Abstract: 120,781. Alley, S. E. Nov. 24, 1917. Axles.-The front axle of a motor-vehicle, one end of which is shown in elevation in Fig. 1, is made of a straight bar A of I-shaped or similar cross-section, having at each end a boss B for the upper stub-axle pivot bearing, a similar boss J for the lower bearing being carried by an arm H bolted to brackets C, E, formed by lateral extensions of the flanges of the bar and also serving as seats for the springs.
Patent GB-1049256-A (GB)
Title: Improvements relating to electric fan heaters
IPC: F24H3/04
Filed: 1965-04-23
Abstract: 1,049,256. Fan heaters. LICENTIA PATENT-VERWALTUNGS G.m.b.H. April 23, 1965 [April 23, I964], No. 17359/65. Heading F4V. The air outlet grille 12 of an electric fan heater is of re-entrant form, as illustrated, or of protruding angled form, Fig. 2 (not shown). The heater casing comprises two shell halves 2. and 8 and air inlet openings 3 and 4 are provided on either side of a control panel 1.
Patent GB-348422-A (GB)
Title: Improvements in hoppers
IPC: B65D88/26
Filed: 1930-06-05
Abstract: 348,422. Shoots. SOC. MARSEILLAISE DE HOUILLES ET AGGLOMERES ETABLISSEMENTS SAVON FR’RES ET CIE, and AVON, G., 25, Rue de la RÚpublique, Marseilles, France. June 5, 1930, No. 17477. Convention date, Jan. 7. [Class 78 (i).] A hopper for use in connection with the sacking of products stored in bulk comprises a casing 1 containing adjustable shutters 4 which by more or less closing the passage for the material causes it to flow in a layer of adjustable thickness over screens 5 into weighing and sacking machines. The residues from the screening operation collect at the bottom of the apparatus and are removed through a door 8. The casing is carried by legs 2 mounted on wheels 3.
Patent GB-221905-A (GB)
Title: Automatic safety locking means for railway carriage doors
IPC: E05B65/42
Filed: 1923-07-05
Abstract: 221,905. Argent, F. R., Miller, G. E., and Gadsby, A. T. July 5, 1923. Railway - carriage doors, fastening automatically. - Relates to automatic locking devices for railway carriage doors of the type in which liquid from a tank is forced by a pump, driven from a wheel axle, through a pipe against spring-pressed pistons connected with the locking bolts, means being provided to prevent excess of pressure in the system. The invention consists in the provision of a separate return pipe n from the piston cylinders with a spring-pressed ball valve t therein to govern the maximum pressure of the liquid. A bye-pass may be provided in the valve t to allow oil displaced by the returning pistons to return to the tank j. The pump may be a rotary one fitted with duplex suction and delivery valves c, c<1> and d, d<1> so arranged that the pump will deliver to the supply pipe irrespective of the direction in which it is driven by the axle. The pistons have a bevelled shoulder to engage a correspondingly shaped seating in the cylinder to prevent leakage of oil when the fastening is shot.
Patent GB-545222-A (GB)
Title: Improvements in or relating to valve assemblies
IPC: F16K11/16
Filed: 1940-12-10
Abstract: 545,222. Multiple-way valve. PARKER, A. L. Dec. 10, 1940, No. 17494. Convention date, Dec. 13, 1939. [Class 135] A manually-actuated multiple way valve adapted to connect a single outlet to either of two inlets has a pair of valve members carried by a rocker arm pivotally mounted in a casing and actuated by a hand lever acting through a spring tumbler mechanism. In the form shown in Fig. 1 each valve member 37 comprises a conical facing 43 mounted on a short spindle 41 with a head 42. The upper part has a pair of flanges separated by a cylindrical part adapted to engage open-ended slots 36 in the rocker-arm 31. This arm has side flanges 32 with holes adapted to receive a pivot pin 34 located in recesses formed by lugs on the base of the casing and is guided in its movements by ribs 17 on the casing engaging the slots 36. The actuating lever 24 has a spherical fulcrum 25 housed in a packed cavity in a cover plate 18 and a similar cavity in an inner plate 20. The pointed inner end of the lever engages a conical recess in an intermediate actuating member 45 having flanges 48 adapted to engage alternately with the upper surface of the rocker and a slotted tubular part 46 passed through an aperture in the rocker and engaging the pin 34. A locating spring bearing in the pin 34 is housed in the tubular part and urges the member to one side or the other to provide a snap-action. Modifications are described in which the ends of the rocker are bent upwards or formed with a tapered recess so that when the respective valve is closed this part of the rocker lies in a plane at right angles to the axis of the valve seat.
Patent GB-1450026-A (GB)
Title: Disazo pigment and process for its manufacture
IPC: C08L67/00
Filed: 1975-04-28
Abstract: 1450026 Disazo pigment CIBA-GEIGY AG 28 April 1975 [29 April 1974] 17507/75 Heading C4P The pigment of Formula I is prepared by (a) condensing the dye of Formula II with 4-chloro-1,3-phenylene diamine in a molar ratio of 2 : 1 or (b) coupling diazotized anthranilic acid methylester with 1,3-bis-(2<SP>1</SP>- hydroxy - 3<SP>1 </SP>- naphthoylamino) - 4 - chlorobenzene. The starting dyestuff of Formula II may be prepared by reacting the corresponding free carboxylic acid with thionyl chloride. The coupling reaction (b) may be carried out in a mixing nozzle, by first forming a diazoamine compound by coupling with morpholine or by carrying out the diazotization and coupling in a single stage using an alkyl nitrite. A mixed pigment may be obtained by partially replacing the diamine in process (a) by 1,3-phenylenediamine. The pigment of Formula I and the above mixed pigment may be used to colour plastics in the mass and to colour melts, spinning solutions, lacquers, paints and printing inks containing polymeric materials, giving orange shades.
Patent GB-987519-A (GB)
Title: Circuit arrangement for regulating the frequency or phase of an oscillator
IPC: H04N5/12
Filed: 1963-05-03
Abstract: 987,519. Automatic frequency and phase control systems. STANDARD TELEPHONES & CABLES Ltd. May 3, 1963 [May 18, 1962], No. 17538/63. Heading H3A. The remanence of a transfluxor is used for storing the control voltage in a retro-active frequency or phase control system, if the synchronizing source fades, the control voltage being always present since derived by rectifying an A.C. or pulse voltage applied to an output winding of the transfluxor. As shown, an increasing magnetizing current is applied to the input winding of the transfluxor 7 from a cathode follower 5, due to the discharge of a time constant grid circuit 19, 18, 20, 21, 22 which is initially negatively charged from a source U to block the tube 5 (and the transfluxor 7 initially magnetized by the same source U). Output voltage - U R  from the transfluxor is used for controlling the frequency or phase of one frequency input F 0  to the discriminator but on phase or frequency synchronism of the oscillator and synchronizing frequencies, F 0 , F S  being achieved a negative voltage is produced from discriminator 1 and again blocks tube 5, so that the control voltage - U R  ceases to increase. Any subsequent drift between F 0 , F S  removes this blocking voltage from tube 5 so that the control voltage - U R  increases until synchronism is restored, but if this increasing same polarity of - U R  fails to produce synchronism a value of the cathode current of tube 5 is reached at which relay A and switches a 1 , a 2  are energized and the negative bias source - U again applied to tube 5 and the transfluxor 7 to re-set it. Relay A then falls back and the control voltage - U R  again starts to increase with the same polarity as before but from a lower minimum value, until the correct control value of - U R  is reached, whereupon, as before, tube 5 is again blocked and the sweep of - U R  ceases. The control voltage - U R  may be centred about a zero value by adding positive voltage from a rectifier 16. Alternatively each energization of relay A and erase of the transfluxor may, by further relays, reverse the polarity of the control voltage ŒU R , or input current to the transfluxor, or this reversal may be effected by otherwise detecting the sense of the frequency error. A voltage divider 21, 22 may apply a portion of the output of the blocking voltage from stage 1 to the control voltage - U R  (or ŒU R ), to compensate for the removal of current from the transfluxor input winding. The frequency or phase discriminator may also apply its output directly to the oscillator as a fine control. The transfluxor alternatively may itself control the oscillator, by its output winding being included in series with the oscillator coil.
Patent GB-1323820-A (GB)
Title: Dispensing apparatus
IPC: B65D83/14
Filed: 1971-05-27
Abstract: 1323820 Spray producer DIAMOND INTERNATIONAL CORP 27 May 1971 [27 July 1970] 17542/71 Heading B2F [Also in Division B8] In an aspirating type of dispenser, the pressure in the container is kept constant by means of a flexible annular diaphragm 75 which a1- lows entry of atmospheric air to the container to replace product dispensed as shown by arrows in Fig. 2, and also may be deformed into chamber 77 by a superatmospheric pressure in the container so that excess air may flow via a channel 82 (Fig. 3) through chamber 77 and to the atmosphere. Plunger 36 is depressed to the position shown in Fig. 2 to dispense the product. Product valve 40 and propellant valve 58 are thus unseated and propellant is discharged from chamber 48 through passage 62 and orifice 66 and in aspirating relation across the top of passage 64 to induce a flow of product from container 10 through dip tube 46a, passage 44, valve chamber 42 and passage 64. Product entrained in propellant is discharged through orifice 68. Pressure in the container is reduced by discharge of product so that the outer periphery of pressure equalising valve 75 is deflected downwardly away from its seat as shown in Fig. 2 to allow air to flow in. Natural resiliency of the valve 75 returns it to sealing engagement when atmospheric pressure is achieved in the container. On the other hand, if propellant escapes into product container 10, the pressure in the container increases until valve 75 is deformed into channel 77 as shown in Fig. 3 and air flows through passage 82 as shown to relieve the pressure. The valve returns to sealing engagement once atmospheric pressure has been achieved.
Patent GB-1100523-A (GB)
Title: Copolymers
IPC: C08F218/08
Filed: 1966-04-21
Abstract: Ethylene and up to 30 weight per cent, based on ethylene, of vinyl acetate are copolymerized in the presence of n-butane and/or propane as modifier at 120 DEG  to 260 DEG  C. and 1900 to 2200 atmospheres. Polymerization may be effected in the presence of free radical catlysts, e.g. t.-butyl perpivalate, t.-butyl perbenzoate, t.-butyl peracetate, t.-butyl peroxide and dilauroyl peroxide, which may be introduced in an inert hydrocarbon solvent, in one or more stages. The products may be used for moulding, coating and laminating.  In examples ethylene and vinyl acetate are copolymerized in the presence of (I and III) n-butane and t.-butyl peracetate, (II) propane and t.-butyl peracetate and (IV) n-butane, t.-butyl perpivalate and t.-butylperbenzoate.
Patent GB-242563-A (GB)
Title: Improvements in or relating to knotting mechanism
IPC: D04B35/00
Filed: 1925-07-08
Abstract: 242,563. Withers, J. S., (Mercury Mills, Ltd.). July 8, 1925. Knot-tying devices.-In a knotting device for knitting machines of known type, and comprising a knotting bill from which the knot is stripped by a stripper, a device is provided for moving the knot along the threads so as to ensure the leaving of comparatively long tails and to prevent failure of the knot. The knotting bill Ka and stripper K<4> are actuated by link mechanism K<6>, K<8> which also serves to move an arm A<4>. A brush A supported by a spring-stressed arm A<1> is moved by a stud on the arm A<4> to engage the partly formed knot while the threads are still held by the knotting bill and push it along them as indicated in Fig. 4. Specifications 238,301 and 242,563 are referred to. Reference has been directed by the Comptroller to Specification 255,994.
Patent GB-707276-A (GB)
Title: Improvements relating to the lapping of metal surfaces
IPC: B24B15/08
Filed: 1952-07-11
Abstract: A process for lapping metal surfaces comprises moving the surfaces in contact with one another in the presence of a solution which attacks or coats at least one of them.  The solution may be acidic or alkaline.  Oxidizing powder may also be used at least at the beginning of the lapping process to assist in the grinding action by removing those surface parts which have been attacked and altered; the solution is preferably changed before lapping is complete, being replaced by a powder-free solution for the final stage.  The solution and grinding powder may be made into a paste and used as such in the lapping operation.  The solution is preferably a phosphate coating solution, particularly if one or both of the surfaces to be lapped is or are of cast iron; if a cast iron surface is to be lapped against a steel surface, it is enough if the solution attacks the cast iron. One or both of the surfaces may be coated with phosphate before the lapping begins. A suitable phosphate coating solution in which cast iron surfaces may be immersed during lapping contains, per litre, 19.5 gm. of zinc, 23 gm. of P2O5 and 24.5 gm. of NO3; a wetting agent may be added to the solution to facilitate its penetration between the surfaces.  When aluminium articles are being lapped, a phosphate solution of the kind capable of coating aluminium may be used or instead a solution of the kind used for coating aluminium and containing sodium chromate and sodium carbonate may be used.  The process is applicable to the lapping or grinding-in of pairs of surfaces which mate with one another, and also to the shaping of one surface by rotating it or otherwise moving it in contact with a former.
Patent GB-178400-A (GB)
Title: Improvements in the utilization of waste aluminium
IPC: C01F7/26
Filed: 1921-06-28
Abstract: Aluminium turnings, powder, and other forms of waste aluminium metal are dissolved in sulphuric acid and saturated in the cold with alum, and ammonium, potassium, or sodium sulphate is added to give the corresponding alum.  The alkali sulphate may also be added prior to the dissolution of the aluminium.  Alternatively the aluminium waste may be dissolved in an alkali solution saturated in the cold with alum, and the calculated quantity of sulphuric acid then added. After the reaction, the alum is separated by crystallization.
Patent GB-530095-A (GB)
Title: Improvements relating to the construction of television receivers
IPC: H04N5/645
Filed: 1939-06-16
Abstract: 530,095. Television. STANDARD TELEPHONES & CABLES, Ltd., and SHANNON, D. S. B. June 16, 1939, No. 17655. [Class 40 (iii)] A television receiver comprises a sliding shelf A adapted to be inserted in a cabinet with a cathode ray tube C suspended from and beneath the shelf. The scanning and focus coil units and a mask for the cathode ray tube are supported upon the tube or upon the shelf. The cathode ray tube C is supported by padded straps H, such as feltlined metal bands, against brackets G projecting from the underside of the shelf A. The shelf A is held in position in the cabinet by sliding it along fixed battens B. The tube may be inclined to the shelf at a small angle, or the shelf may slide on runners slightly inclined to the horizontal.