baber/WOPTO huggingface dataset:
Patent GB-149662-A (GB)
Title: Improved manufacture of sulphur dioxide by heating sulphates of alkaline earths magnesium and iron
IPC: C01B17/50
Filed: 1920-07-08
Abstract: Sulphur dioxide is prepared by reducing sulphates of the alkaline earths, of iron and magnesium by means of a mixture of a heavy metal, or the lower oxide of a heavy metal, which is reduced by hydrogen, with carbon or a reducing-gas.  The reducing-agent may be present in sufficient quantity to carry the reduction only to the sulphite stage, or sufficient may be added to convert the sulphate to sulphide.  In the latter case the reduction is followed by treatment with air and steam at a higher temperature.  The reduction to sulphite may also be carried out in two stages.  The reduction is first effected in the presence of nitrogen or some other neutral gas or in a vacuum, and sulphur dioxide is driven off at a higher temperature.  The higher oxides of the heavy metals may also be employed, the lower oxides or metals being produced in the process itself, and the metal is recovered from the residual mass by reducing e.g. by water-gas and washing out the lime with water.  In the first of two examples, hepatite, iron powder and anthracite are heated alone, and, in the other, similar materials are first heated to 600 DEG  C. and then sulphur dioxide obtained by heating to 900 DEG  C. in the presence of steam and air.  The Specification as open to inspection under Sect. 91 (3) (a) states that the reduction may be effected by metals, their low oxides or substances which can produce these compounds; no carbon or reducing gas being necessary.  In additional examples, iron and iron protoxide are respectively used. This subject-matter does not appear in the Specification as accepted.
Patent GB-275603-A (GB)
Title: Improvements in rotary positive pressure blowers and vacuum pumps
IPC: F04C18/352
Filed: 1927-07-25
Abstract: 275,603. Ranck, E. D., (Assignee of Clarke, W. E.). Aug. 3, 1926, [Convention date]. No Patent granted (Sealing fee not paid). Fixed-abutment type.-The vanes 11, 12 of a sliding-rocking vane pump or blower in which the vanes are rotatable round a fixed shaft 9 concentric with the pump casing 1 are formed with transverse bosses 15 where they pass through the slots of the eccentrically mounted rotor 6.
Patent GB-1503711-A (GB)
Title: Machine crank-shaft with dynamic balance ratio
IPC: F02B75/18
Filed: 1975-05-12
Abstract: 1503711 Balancing crank-shafts SOC D'ETUDES DE MACHINES THERMIQUES 12 May 1975 [31 May 1974] 19813/75 Heading F2U In a crank-shaft having a plurality of cranks to which connecting rods and pistons are connected, and having balancing counterweights, at least one of the cranks is angularly displaced relative to the position it would occupy if the cranks were circumforontially uniformly angularly distributed, as viewed in an orthogonal projection on to a plane perpendicular to the rotary axis of the shaft. A crank-shaft having seven cranks, for an in line seven cylinder or a V-14 I.C. engine is described, the positions the cranks would occupy if equiangularly distributed being represented by the lines 01 to 07 and the displaced positions being represented by the lines 01<SP>1</SP> to 07<SP>1</SP>, the lines 04 and 04<SP>1</SP> coinciding. With the correct angular displacements the free movement of each crank, connecting rod and piston assembly relative to the middle of the crank-shaft can be reduced to zero.
Patent GB-632733-A (GB)
Title: Improved methods of and means for coating explosive charges
IPC: C09D7/63
Filed: 1947-07-23
Abstract: 632,733. Ammunition. ATKINS, A. A., CLEMMOW, E. P., ROE, H., and WEAVER, S. D. July 23,1947, No. 19820.. [Class 9 (i)] A cylindrical explosive charge has a preformed non-inflammable sheet of a thermoplastic resinous substance wrapped round its curved surface to inhibit burning, the sheet and the charge being bonded together by the application of heat and pressure. The charge may be a cordite composition consisting of 49.5 per cent nitrocellulose, 41.5 per cent nitroglycerine and 9 per cent diethyl diphenyl urea, all parts. being by weight. An extruded cordite charge 4.3 inches diameter and with a star-section axial bore is coated with a cellulose acetate plastic dissolved in acetone. The plastic composition is 55 parts cellulose acetate, 40 parts triacetin, 5 parts diethyl diphenyl urea. When the coating has dried a sheet of the plastic composition is wrapped three times round the charge, the sheet being <SP>1</SP>/ 40  inch thick and wider than the length of the charge. The wrapped charge is then placed in a bronze or other non- ferrous metal mould having passages for steamheating and water-cooling. The mould is in two semi-cylindrical parts, the internal surfaces being chromium-plated and lubricated with stearic acid powder or oleic acid. The internal diameter is 4.43 inches and when the two parts are forced together and steam is passed through the mould, excess plastic is extruded at the mating surfaces. After heating for 5 minutes, the mould is cooled and the coated charge removed. Alternative compositions are given for the plastic sheet. Non-combustible fillers such as asbestos, mica, titanium dioxide, magnesia, calcium hydroxide, " Celite " (Registered Trade Mark), or powdered chalk, may be incorporated in the sheet material. Instead of using a mould, the sheet material may be consolidated and bonded to the charge by three spaced parallel rollers. The wrapped charge is supported on two rollers having passages for heating fluids and the third roller is brought into contact with the charge to apply pressure. When using this method the sheet is given an initial set before application to the charge, by rolling it into a cylinder and applying a constraining ring. After pressure has been applied the sheet coating is about 0.06 inches thick. The treated charge may be wrapped in paper, asbestos sheet or with a textile fabric as in Specification 616,292. Specification 489,279 also is referred to.
Patent GB-570283-A (GB)
Title: Improved radio wave trans-receivers
IPC: H04B1/50
Filed: 1943-12-01
Abstract: 570,283. Wireless Signalling. COMMUNICATIONS PATENTS, Ltd., and RING- HAM, G. B. Dec. 1, 1943, No. 20036. [Class 40 (v)] A combined radio transmitter and receiver makes use of a single valve and an associated resonant tone circuit both for selectively receiving and amplifying an incoming calling tone and for the back-coupled generation of an outgoing calling tone. The apparatus comprises an aerial 3, a radio transmitter 1, a radio receiver 2 and a main four-pole switch 13 which is thrown from the receiving position (as shown), to the transmitting position by finger pressure on a lever 20 mounted on the microtelephone 9 and connected by cable 21 to the switch 13. A two-pole switch 14 is operated by lifting or replacing the instrument 9 in the cradle, 25, and a further two-pole switch 15 is operated by a press-button 30. As shown, all the switches are in the stand-by position, with the aerial connected to the receiver 2 at 16 and with H.T. from battery 11 connected to the receiver at 18. An incoming calling tone passes from receiver 2 through condenser 35 and switch arm 19 to the grid of a pentode valve 4. The amplified tone passes from the anode through a condenser 38 and switch arm 23 to a selective circuit 39, 40 resonant to the calling tone. A secondary coil 41 passes the tone current through switch arm 28 and rectifier 42 to a relay 43 which closes the circuit of a bell 5, lamp 6, or other call indicator. When the operator lifts the instrument 9, the calling circuit is broken at 23, and the secondary 34 of the pentode output transformer 32 is connected at 24 to the telephone receiver 7 so that an incoming message is audible therein. Should the operator desire to speak, he presses the lever 20 to throw the switch 13. The microphone 8 is thus connected via a transformer 46 and switch contact 19 to the grid circuit of the valve 4; and the output transformer 32 has its secondary coil 33 connected through contact 17 to the modulator input of the transmitter 1. For making an outgoing call, the instrument 9 is lifted, the lever 20 operated, and the push-button 30 depressed. This connects the tone circuit 39, 40 to the anode of the valve 4 through the condenser 38 and the contact 29 of the switch 15 ; the coupled coil 41 is connected through contact 28 of switch 15 and the contact 19 of the main switch 13 to the grid of the valve 4, so that the valve generates oscillations by back-coupling. These pass from the output transformer 32 via secondary coil 33 and contact 17 to the modulator terminals of the transmitter 1 to modulate the calling tone on the outgoing wave. When receiving messages, the condenser 38 is connected to earth through a resistance 48 associated with contact 23 of switch 14, thus operating as a tone-correction circuit.
Patent GB-293766-A (GB)
IPC: D06P1/645
Filed: 1928-07-10
Abstract: 293,766. I. G. Farbenindustrie Akt.- Ges. July 11, 1927, [Convention date]. Dye preparations.-Salts of acid dyestuffs with hydrogenated isocyclic bases are used for dyeing esters or ethers of cellulose or its transformation products. Specified bases are hexahydroaniline, its substitution products, such as hexahydromethylaniline and hexahydroethylaniline, homologues, such as hexahydroethyl-o-toluidine, hexahydro-m-toluidine, hexahydroxylidines, and hydrogenated naphthylenediamines, e.g. the hydrogenated 1 : 5-diamine. Specified dyestuffs for acetate silk are (1) the sodium salt of hexahydroanilidoanthraquinone-2-sulphonic acid (cf. Specification 276,408), (2) Orange II. The Specification as open to inspection under Sect. 91 (3) (a) comprises also references to hrdrogenated 1 : 7-naphthylenediamine as a suitable base and to Benzo brown G as a suitable dyestuff. This subject-matter does not appear in the Specification as accepted.
Patent GB-314759-A (GB)
IPC: G11B3/00
Filed: 1928-12-31
Abstract: 314,759. Dieux, J. May 10, 1928, [Convention date]. Divided on 811,366. Electric pick-ups, sttpporting. - An electromagnetic gramophone pick-up is pivoted at 10 on an horizontally swing- ing arm 11, the pivotal axis of the pick-up passing through the body of the latter, so as to give partial equilibrium, and thereby reduce pressure of the stylus on the record. A counterbalancing weight 12 may also be provided on the casing of the pick-up, or the upper part of the casing may be suitably thickened for this purpose. The arm 11 is mounted on a bearing such as is shown in Fig. 2, comprising a fixed pivot pin 14 and a ball 15. The Specification as open to inspection under Sect. 91 (3) (a) also describes an arrangement wherein the pick-up is fixed on an arm which is pivoted between its ends and is provided with a counterweight at the end opposite to that on which the pick-up is mounted. This subjectmatter does not appear in the Specification as accepted.
Patent GB-459800-A (GB)
Title: Improvements in the driving means of cycles and other foot-propelled vehicles
IPC: B62M1/24
Filed: 1935-07-15
Abstract: 459,800. Treadle driving-mechanism for cycles &c. GEORGE, C. J., 139, Kennedy Street, Turffontein, Johannesburg, South Africa. July 15, 1935, No. 20163. [Class 136 (ii)] In driving-mechanism for cycles and other foot-propelled vehicles, of the type comprising a pair of alternately acting treadle levers 9, 10 adapted to drive the sprocket wheel of the usual chain gearing through wedging-roller or other free-wheel clutches 20, the inner cylindrical members 15 of the clutches are screwed on the ends of the spindle 5, one on a right-hand thread and the other on a left-hand thread, and one of the cylindrical members 15 has the sprocket wheel 4 fixed on a reduced portion 21 thereof. The members 15 are provided with inner flanges 16, one of which serves as a distance-piece between the sprocket 4 and the crank 9. Annular plates 23 are secured to the members 15 to serve as covers for the clutches.
Patent GB-441018-A (GB)
Title: Improvements in or relating to spraying devices
IPC: B05B11/00
Filed: 1934-07-10
Abstract: 441,018. Spray-producers. COTTON, P. S., 8, The Broadway, Northwood Hills, Northwood, Middlesex. July 10, 1934, No. 20276. [Class 69 (iii)] A portable spraying apparatus comprises a tubular container 46 for liquid which may be charged with compressed air by a pump 34 and having at one end a nozzle 32 connected to two discharge passages 26, 28, one of which communicates with the top of the receptacle while the other is connected to a tube 30 reaching to the farther end. A cock 18 provided with passages 21, 22 connects the sprayer to whichever passage 26, 28 is required according to the position in which the apparatus is held.
Patent GB-1461383-A (GB)
Title: Covers for levitation beds
IPC: A61G10/02
Filed: 1973-04-28
Abstract: 1461383 Hospital beds HOWORTH AIR CONDITIONING Ltd 10 April 1974 [28 April 1973] 20317/73 Heading A4J A hospital bed unit comprises a wheeled, first frame 1 carrying a levitation bed by which a patient is supported on a cushion of escaping air, a second frame 3 or 3a, which may be wheeled or suspended, a cover carried by the second frame for over-lying and enclosing the levitation bed, a plenum chamber 8 disposed above the bed, and a fan 14 for blowing air from the plenum chamber 8 over a heating unit and through a filter 7a or 7b on to the patient. The cover Figs. 3, 4 may comprise flaps 6 hinged at their upper edges adjacent the longitudinal edges of a ceiling plate 7 forming a part of the cover. The lower edges of the flaps 6 have skirts 11 which restrict escape of air from the chamber 10 defined within the cover over the patient. Alternatively Fig. 5 the cover 5a may be hinged at one side 17 and is counterbalanced by a weight 18. The height of the cover 5a may be adjusted by a handle 19 operating a rack and pinion. The bed supporting frame 1 may be pivotally mounted, at 13, on a subframe 1a to effect a tilting of the bed to raise the patient's head.
Patent GB-1098114-A (GB)
Title: Liquid fuel fired furnaces with induced draught
Inventor: APPLEGATE GEORGE
IPC: F23L17/00
Filed: 1964-05-15
Abstract: 1,098,114. Liquid fuel induced draught furnace. CURWEN & NEWBERY Ltd. May 13, 1965 [May 15, 1964], No. 20373/64. Heading F4B. Combustion air is drawn through a sleeve 9 with adjustable inlets 12 to a burner nozzle 8 by a motor driven induced draught fan 2. A pump 6 driven by the same motor 4 supplies oil to the burner nozzle 8. The sleeve 9 has swarf vanes 11, and an electric igniter 14. The motor 4 is controlled by a thermostat to stop when the temperature in a boiler 18 heated by the burner reaches an upper limit, and to be switched on when the temperature falls to a lower limit.
Patent GB-1139200-A (GB)
Title: Improvements in valves for fluids
IPC: F16K41/04
Filed: 1966-05-09
Abstract: 1,139,200. Valves. P. SALERI and A. SALERI. 9 May, 1966 [29 Jan., 1966], No. 20410/66. Heading F2V. The stem 3 of a manually - actuated ball closure 4 has a ring 6 with upper and lower frusto-conical faces and two resilient metal washers 10, 12 each having a frusto-conical form and resting against the upper and lower faces of the ring. Similar metal washers 9, 11 abut relatively adjustable parts 1, 15 of the valve casing and seals 13, 13<SP>1</SP> of resilient plastic material are interposed between each pair of washers. A clearance around the outer peripheries of the washers permits deformation to accommodate temperature changes in the valve.
Patent GB-1033756-A (GB)
Title: Improvements in or relating to pipe couplings
Inventor: CARTER RAYMOND CHARLES
IPC: F16L47/10
Filed: 1965-05-14
Abstract: 1,033,756. Pipe couplings. HEPWORTH IRON CO. Ltd. May 14, 1965, No. 20546/65. Addition to 1,023,729. Heading F2G. The coupling socket of Specification 1,023,729 has a maximum thickness of the peripheral wall of the recess in the socket lying in the plane in which will act the maximum compressive stresses on the head of the sealing ring due to insertion of a spigoted end of a pipe length. The inner peripheral wall of the recess may diverge towards the mouth of the socket (Fig. 2).
Patent GB-148848-A (GB)
Title: Improved method of obtaining viscous charges of glass from a viscous mass thereof
IPC: C03B7/088
Filed: 1920-07-10
Abstract: 148,848. Tucker, O. M., Reeves, W. A., and Beatty, J. M. April 10, 1916, [Convention date]. Delivering molten metal.-In apparatus for delivering molten glass from a tank furnace in uniform charges, the flow from the orifice 2 ie controlled by a cup 6, into which compressed air or a combustible mixture is introduced through a pipe 24 and a perforated bottom 23. The stream is cut off by shears, as usual, and the flow may be arrested altogether between the severing operations, as shown in Fig. 1, or it may be merely retarded by moving the cup 6 downwards, as shown in Fig. 3. Part of the compressed air &c. is allowed to escape continuously between the top of the cup 6 and the bottom of the tank. Specifications 105,564 and 109,782 are referred to.
Patent GB-1177288-A (GB)
Title: Carbonated Beverage Dispenser for Removable Attachment to a Beverage Container
IPC: B67D1/04
Filed: 1967-05-03
Abstract: 1,177,288. Dispensing liquids by gaseous pressure. NATIONAL DISTILLERS & CHEMICAL CORP. May 3, 1967 [May 27, 1966], No.20579/67. Heading F1R. In a dispenser for removable attachment to a beverage container 10, CO 2  from a cartridge 32 is fed to the interior of the container through the annular channel 90 formed between the concentric tubes 85 and 86, under the control of a diaphragm operated pressure regulating valve 42, and beverage is dispensed from the container through the tube 86 and an outlet 71 under the control of a manually operable valve 63. The tubes 85 and 86 are mounted on a sleeve member 80 which is adjustably located on the cartridge containing body 30 to accommodate different locations of the container bung 11. A spring biased plunger 100 engages in recess 101 or 102 to locate the member 80. The biasing spring of the diaphragm 47 abuts an adjustable member 50 by means of which the force exerted by the spring may be adjusted to vary the pressure set by the regulating valve 42.
Patent GB-866783-A (GB)
Title: Improvements in and relating to the production of artificial filaments, yarns, threads and the like from viscose
Inventor: GIVENS JOHN HARRISON
IPC: D02J1/22
Filed: 1957-07-01
Abstract: <PICT:0866783/IV (a)/1> Viscose containing a modifier such as polyethylene glycol is spun into a coagulating and regenerating liquor and the freshly coagulated filaments are stretched in a series of steps which alternate with steps in which the filaments are relaxed, each successive stretching step being such that the length of the filaments is progressively increased.  Preferably, there are at least 5 stretching steps and, in the periods of relaxation between successive stretching steps, the filaments are allowed to contract up to 4% of their length.  Preferably, also, each stretching step increases the length of the filaments by 4-20%, particularly 5-10%, and the further stretching of filaments which have already been stretched 50% in a series of steps is preferably accomplished while the filaments are wetted with a hot liquid. The modifier may also be a quaternary ammonium compound, an amine, a dithiocarbonate, an aryl thiourea, thioglycol, a polyethylene oxide, or a condensation product of an amine and ethylene oxide. When a polyethylene oxide is used as the modifier, preferably from 1 to 10% by weight of the polymer, based on the weight of the cellulose, is added to the viscose, which is extruded at a salt point between 5 and 18 into a bath in which the concentration of sulphuric acid is between 0,8 and 1,5 times that of the caustic soda in the viscose and which contains 3-20% of zinc sulphate.  The alternate stretching and relaxing of the filaments may be carried out by means of an apparatus comprising as shown, stepped rollers 1, 2 mounted on spindles 3, 4 on which are secured identical gear-wheels 5, 6 meshing with a gear-wheel mounted on the spindle 8 of an electric motor 9, so that the rollers may be driven in a clockwise direction at the same angular velocity.  The rollers are each composed of a graduated series of peripherally grooved discs of increasing effective diameters, and the path of the bundle of filaments is indicated by the arrowed line.  The stretching of the filaments in a series of steps allows a greater overall stretch (and consequently higher tensile strength) to be imparted to the filaments than if they are stretched in a single step.  Specifications 467,500 and 808,838 are referred to.
Patent GB-503460-A (GB)
Title: Electrolytic liquid condensers
IPC: H01G9/042
Filed: 1938-07-12
Abstract: 503,460. Electrolytic condensers. STANDARD TELEPHONES & CABLES, Ltd. July 12, 1938, No. 20662. Convention date, Aug. 19, 1937. [Class 37] A condenser for liquid electrolyte has anodes of comb-like section across the teeth of which a plate extends forming an auxiliary cathode. In the example, Fig. 4 has anode parts 1, 2, connected by a central rib 3, plates 6 extending inward from the cathode-container 7. In Fig. 8 the supporting backs of the combs 11 extend radially and the cathode plates 13 are four in number. The anodes may be made up of pleated sheet-metal.
Patent GB-1021881-A (GB)
Title: Improvements relating to the control of d.c. electric motors
Inventor: WEST RICHARD ALFRED
IPC: B66C13/24
Filed: 1962-05-30
Abstract: 1,021,881. Control of D.C. motors. CONTACTOR SWITCHGEAR Ltd. March 25, 1963 [May 30, 1962], No. 20771/62. Heading H2J. Lowering operation of a crane hoist is effected by connecting field winding SF, brake coil SB and resistor Rf in parallel with armature A of the driving motor, a resistor Rs being included in series with both armature and field circuits. The armature circuit includes series resistor Ra and supplementary resistor Rb. When the motor is producing a downward driving torque, rectifier R opposes the flow of armature current so that the resistor Rb is in circuit. As the speed increases and the load overhauls the motor, the armature current reverses due to regeneration, the resistor Rb then being short-circuited by the rectifier, thereby reducing the total armature circuit resistance: The rectifier may be replaced by a contactor controlled by a polarized relay. The circuit connections are re-arranged for power drive with the armature and field windings in series, the resistors Rs and Rb acting as armature diverters.
Patent GB-720589-A (GB)
Title: Improved automatically-threading loom shuttle
Inventor: MCHARGUE WILLIAM LESTER
IPC: D03J5/24
Filed: 1953-07-27
Abstract: 720,589. Loom shuttles. WEST POINT MANUFACTURING CO. July 27, 1953, No. 20784/53. Class 142 (2). An automatically threading shuttle is provided with a threading block having a passage 22 longitudinally of the shuttle into which the thread is guided by a horn 30. Depending from the horn 30 is a finger 36 which provides a passage 41 and carries hooks 38, 40 serving to prevent escape of the thread from the passages. The thread is carried under the horn on the first pick, and is guided down the under surface of the horn and under the hooks 38, 40 on the second pick. On the third pick the thread rides against a pin 48.