baber/WOPTO huggingface dataset:
Patent GB-1041431-A (GB)
Title: Pressure casting
Inventor: TWISLETON-WYKEHAM-FI MAURICE A
IPC: B22D11/10
Filed: 1964-01-16
Abstract: 1,041,431. Continuous casting-machines. DAVY & UNITED ENGINEERING CO. Ltd. Jan. 18, 1965 [Jan. 16, 1964], No. 1917/64. Heading B3F. In a method of continuous casting the melt is subjected to a sub-atmospheric pressure prior to its subjection to a super-atmospheric pressure to feed it to a continuous casting mould. Apparatus, the Figure (not shown) comprises a chamber 10 which may be evacuated or supplied with argon gas at super-atmospheric pressure and in which is sealed a ladle 14 with an outlet leading to a refractory tube 30, which may be heated, leading to a mould 32. Casting may be effected upwardly from the container.
Patent GB-547159-A (GB)
Title: Improvements in or relating to tubulous boilers
IPC: F22B31/04
Filed: 1941-02-13
Abstract: 547,159. Water-tube steam boilers. BABCOCK & WILCOX, Ltd., and SPARKS, C. H. Feb. 13, 1941, No. 1950. [Class 123 (ii)] A boiler has two or more combustion chambers lined with radiation tubes 6 connected to an upper drum 11 and to lower drums 10, 10<1>, and downcomers 12 screened from the furnaces are disposed between adjacent pairs of chambers. The gases flow across transverse banks of tubes 3 then across superheating tubes 31 and finally across tube banks 4 connecting the upper drum to lower drums. The parts of the lower drums adjacent the tubes 3 and the superheater are protected from the hot gases by refractory floorings 46. The superheater, which is connected to separated wet and dry steam spaces in the upper drum, may deliver into the drum through separators of the kind described in Specification 526,825. The tube banks 4 may be connected to upper and lower transverse drums communicating with the main upper and lower longitudinal drums. The tube banks 3, Fig. 11, are arranged at the sides of the combustion chambers 2, which are separated by gas turning spaces 51 through which the gases flow across inclined tube banks 55 connecting the upper drum 1 to short lower drums 57. The two lower drums 10 may be replaced by a single lower drum. A reheater may be inserted in some of the gas passes in place of a superheater. Specifications 546,757 and 546,763 also are referred to.
Patent GB-1525442-A (GB)
Title: Preheating of coal for the production of coke
IPC: C10B45/00
Filed: 1977-01-19
Abstract: 1525442 Preheating charges for coke ovens HUTNI PROJEKT PRAHA 19 Jan 1977 [21 Jan 1976] 02027/77 Heading F4B Particulate coal to be fed to a coke oven is preheated in a shaft 8 with gases from a combustion chamber 7, and the coal and exhaust gases are fed to one or other of two separator sets, each comprising a primary cyclone 11, 41, and at least one secondary cyclone 15, 45, the outlets from the cyclones of each set being fed through a valve 12, 42 to a bin 13, 43 having a metered outlet to the coke oven, and the gases from each set of secondary cyclones are fed partly to a heat exchanger 20 to cool the gases and may fire coal emitted to atmosphere, and partly through a fan 18 to the combustion chamber 7 of the preheater. The heat exchanger 20 may provide heated air for the combustion chamber 7, and gases leaving the heat exchanger may be filtered at 22, the fire coal removed in filter 22 being collected for use elsewhere or fed to the burner 32 of the combustion chamber 7.
Patent GB-1495592-A (GB)
Title: Securing members
IPC: F16B19/10
Filed: 1975-01-17
Abstract: 1495592 Blind rivet A RAYMOND 17 Jan 1975 [18 Jan 1974 6 April 1974] 2142/75 Heading F2H [Also in Division B3] A blind rivet comprises a plastics rivet member 3 having a hollow shank and a pulling pin 4 located within the shank and extending beyond each end thereof, protrusions 5, 6 being formed on part 4a of the pin, the arrangement being such that when the pin is pulled through the hollow shank, protrusion 5 engages the bore thereof so as to distort the shank outwardly and protrusion 6 engages the shank end so as to lock the rivet within an aperture in an element through which the rivet is inserted. The pin may be provided with a weakened portion 10 to facilitate shearing after locking. In a modification (Figs. 3, 4, not shown), the protrusions are barb-like. The head 1a of the rivet member may be provided with a recess in which the end of a bar may be mounted.
Patent GB-797254-A (GB)
Title: Improvements in and relating to elastic woven fabrics
IPC: D03D15/56
Filed: 1956-01-23
Abstract: 797,254. Elastic fabrics. AMAROTICO, V. Jan. 23, 1956 [Jan. 24, 1955], No. 2156/56. Drawings to Specification. Class 142(4) An elastic fabric resembling gabardine has a yarn of combed wool alternating with a yarn of elastic nylon in the warp, and two picks of each yarn alternating in the weft, the wool yarns being woven at a lower tension than the nylon yarns, whereby they become crimped and lie on the surface of the fabric to hide the nylon yarns.
Patent GB-772236-A (GB)
Title: Improvements relating to the measuring of the amplitude of low frequency oscillations
Inventor: CATHERALL REGINALD
IPC: G01R19/22
Filed: 1954-02-24
Abstract: 772,236. Electric tests. SOLARTRON ELECTRONIC GROUP, Ltd. Feb. 23, 1955 [Feb. 24, 1954], No. 2224/56. Divided out of 772,235, [Group XL (c)]. Class 37. A device for measuring the amplitude of an electrical oscillation comprises means for generating from the oscillation two oscillations differing in phase by 90 degrees and means adapted to measure the sum of the squares of the amplitudes of these two oscillations. In the device shown two voltages of maximum value E and differing in phase by 90 degrees are obtained from different points in the lowfrequency oscillator described in Specification 772,235. These are applied through resistances to two thermo-couples feeding a D.C. moving coil meter which may be calibrated in terms of R.M.S. voltage. The current in the meter at very low frequencies is proportional to E<SP>2</SP>sin<SP>2</SP>wt+E<SP>2</SP>cos<SP>2</SP>wt and thus to E<SP>2</SP> and a steady reading is accordingly obtained. The device remains accurate at higher frequencies (i.e. frequencies at which the temperature of the thermo-couples cannot follow the instantaneous values of the input voltages) providing the time constants of the thermo-couples are matched.
Patent GB-140872-A (GB)
Title: Improvements in hoods for motor cars and other road vehicles
IPC: B60J7/12
Filed: 1919-01-30
Abstract: 140,872. Austin Motor Co., and Challenor, H. Jan. 30, 1919. Hoods.-Relates to hoods in which a rear hoopstick is pivoted upon extensions of the main hoop-stick so that it is moved forwards as the main hoop-stick is lowered, and in which the main hoop-stick slides in horizontal longitudinal guides at its lower end, and is connected by links to the body. The invention consists in means for controlling the upward and downward movement of the rear hoop-stick as it is moved rearwards and forwards, and in the provision of springs constantly acting on the lower ends of the main hoop-stick to assist the raising of the hood and, it may be, also to keep it folded. The arrangements are specially applicable to hoods which are housed in a receptacle at the rear of the vehicle. As shown, the framework is mounted on the inside of the body, and the outer or upper parts of the hoop-sticks are received in a recess E at the back of the seat, the side parts being preferably enclosed by cover-plates F. The main hoop-stick A is connected by links C to the body, and is supported by guides D in which pins d on the hoop-stick are adapted to slide. Springs d' disposed in the guides so as to abut against the pins, assist in raising the hood, and when the hood is in the lowered position, the pivot c of the hoop-stick A on the link C is below the line joining the pivot c' of the link and the pin d, so that the springs also hold the hood in the folded position. The rear hoop-stick B is connected at b<1> to an extension of the hoop-stick A, and is prevented from dropping until it has been drawn forward into position for entering the recess by the engagement of a roller b<2> on the stick with a cam-surface b<3>, which may be formed on the casing of the guide D. Or the hoop-stick B may carry a cam for engagement with a roller on the body. The folding movement of the front extension of the hood is preferably arranged to effect the initial movement of the hoop-stick A, as by means of a link a' connected to the body at a<4> and to the front extension member a', which is also pivoted to the hoop-stick A.
Patent GB-607056-A (GB)
Title: Improvements in and relating to control systems for multi-cylinder hydraulic motors
IPC: F03C1/053
Filed: 1946-01-24
Abstract: 607,056. Liquid pressure engines. MACTAGGART, SCOTT, & CO., Ltd., and GUNNING, M. F. Jan. 24, 1946, No. 2346. [Class 69 (ii)] A control system for a reversible multicylinder hydraulic motor provided with loaded pistons b comprises a non-return valve k<SP>1</SP> in what, when the motor is working against a unidirectional load, constitutes a return line k leading to a sump m; and a control valve l having liquid pressure and return ports o<SP>2</SP>, q and supply and exhaust line ports n<SP>2</SP>, p<SP>2</SP> controlled by a valve piston l<SP>1</SP> so constructed that when operated to reverse the motor under load, the port, say n<SP>2</SP>, leading to what was the supply line and what is about to become the return line, becomes open to the sump m prior to the port p<SP>2</SP> leading to what was the return line and what is about to become the supply line becomes connected to the pressure port o<SP>2</SP>, thereby resulting in the motor being actuated as a pump by the load and drawing liquid from the sump m past the non-return valve k<SP>1</SP> and delivering it through the port n<SP>2</SP>, and the exhaust port q back to the sump; motor control being effected by throttling of the circulating liquid and by further operation of the valve piston b in order that pressure liquid may assist in driving the motor in reverse. A non-return valve j<SP>1</SP> in the line enables the motor to be reversed under the influence of a unidirectional load irrespective of the direction of shaft rotation. The piston b which may be spring or hydraulic loaded and arranged to reciprocate in fixed radial cylinders, each provided with a distributing piston valve f, drive the motor shaft e through rollers c and cam tracks d.
Patent GB-547798-A (GB)
Title: Improvements relating to concrete mixers
IPC: B28C7/02
Filed: 1941-02-22
Abstract: 547,798. Concrete mixers; gearing for stopping machinery. STANCLIFFE, C. W., and WINGET, Ltd. Feb. 22, 1941, No. 2415. [Class 78 (i)] [Also in Group XXIV] In a concrete mixing machine of the kind in which measured quantities of aggregate, cement and water are delivered from hoppers or like containers to mixing devices, means are provided for stopping the machine when the amount of material in any of the feed hoppers &c. falls to a predetermined amount or when the amount of mixed concrete in a container to which the machine may deliver reaches a predetermined value. In the machine shown, which is similar to that described in Specification 527,028, [Group II], gravel, sand, cement and water are supplied from containers D, E, F, J respectively on to an endlessbelt conveyer A and mixed by agitators G1-G4 driven from a shaft H. Pivoted rods M1 M2, M3, controlled by pivoted flaps K1 K2, K3 in the containers D, E, F, and a pivoted rod M4 controlled by a ball.R in the water tank J, are adapted, when the material in the corresponding container falls to a predetermined amount, to fall and engage one of the conveyer chains so as to move forward with the chain and operate a push rod N through a tappet P to throw out a clutch Q and thinly stop the conveyer. Alternatively, the flaps may operate electric contacts in an electrical control. A pivoted rod M5, carried by a rod M6 normally held in raised position by .a solenoid-operated stop, falls to engage the chain for similarly stopping the conveyer when the circuit is closed by the mixed concrete in a delivery container reaching a predetermined amount. The tappets may be swung out of reach of the rods to eliminate the automatic control.
Patent GB-178553-A (GB)
Title: Improvements in means for vaporising liquid fuel for delivery to an internal combustion engine
IPC: F02M31/18
Filed: 1921-01-18
Abstract: 178,553. Maclean, J. M. Jan. 18, 1921. Vaporizers, external. - Liquid fuel is continuously heated under a pressure sufficient to prevent vaporization at the temperature attained and is allowed to flow into a mixing chamber at approximately atmospheric pressure where the f u e 1 is immediately vaporized by its contained heat before delivery to the engine intake. The pressure is maintained by impregnating the fuel in a tank with compressed air or an inflammable gas such as hydrogen. Fig. 1 shows a closed fuel-tank 4 maintained under a constant pressure by compressed air or hydrogen fed through a reducing valve 6 from a chamber 5, which is at a considerably higher pressure. The pipe supplying the gas may dip below the surface of the liquid to facilitate solution. The fuel passes up a pipe 7 to a coil 8 heated by the exhaust, and enters the mixing chamber 9 under control of a needle valve 10, Fig. 3. The chamber 9 has a constriction 13, and in the upper part is an air valve 16 controlled by the driver. The resulting mixture passes through a pipe 14 to the intake manifold near the air-inlet 15. A stop valve 11 and pressure-gauge 12 are provided on the pipe 7.
Patent GB-341725-A (GB)
Title: Improvements in or relating to the oxidation of sulphur dioxide
IPC: C01B17/79
Filed: 1930-01-24
Abstract: A vanadate of tin or of bismuth is used as catalyst for the oxidation of sulphur dioxide, or of compounds such as hydrogen sulphide which are readily oxidized to oxides of sulphur.  As carriers for the catalyst may be used pumice, asbestos, silica gel, alumina gel, and magnesium sulphate.
Patent GB-196693-A (GB)
Title: Method of providing objects with a sprayed protective coating
IPC: C23C4/02
Filed: 1922-01-27
Abstract: 196,693. British Metal Spray Co., Ltd., and Gillespie, W. M. Jan. 27, 1922. Enamelling, vitreous.-A method of providing objects with a protective coating of any required thickness and of high resistance to abrasive or other action, consists in spraying the object to provide it with a preliminary coating of a more or less porous deposit of metal, such as zinc or lead, or enamel and thereupon applying by any suitable means a protective preparation, such as metal, enamel, glass or glue, in such a way that a solid body is formed within the pores or between the particles of the preliminary coating, to which compound coating subsequent layers of the protective preparation will adhere firmly. The pores of the preliminary coating may be opened prior to the deposition of the protective preparation by means of heat or sand blast. The final surface of the protective coating may be sprayed with enamel or the like, or where the protective preparation is such that enamel will not adhere thereto, any other final covering coat may be applied.
Patent GB-113158-A (GB)
Title: Improvements in Two-stroke Rotary Internal Combustion Engines.
Inventor: CARTER SAM
IPC: F02B57/08
Filed: 1917-02-21
Abstract: 113,158. Carter, S., and Hawkins, R. E. Feb. 21, 1917. Valve-gear.-In an engine having radial cylinders revolving about a stationary crank-shaft 1, the exhaust valves 12 are actuated from a stationary eccentric 20, which acts on valve rods 25 through ball-bearing rings 32, 33, the inner ring 32 being fixed to the eccentric. The valve rods 25 slide radially in a ring 36 secured to the revolving crank-case, and are connected to levers 26 each having a set-screw 31 bearing against the end of the valve stem 14. Regulating.-The eccentric 20 is formed with a sleeve 21 having slots engaged by the screws 42 which secure the crank-shaft 1 to a part 22 of the engine frame, so that the eccentric can be turned slightly to regulate the portion of the circle at which the exhaust valves open and close. Valves.-The supply of liquid or gaseous fuel to the cylinders is controlled by a distributing- valve 36, which rotates in contact with a disk 48 having an inlet pipe 47 and an are-shaped recess 51<1>, Fig. 7.
Patent GB-881125-A (GB)
Title: Improvements in valves for controlling fluids
Inventor: MUNTON GEORGE WILLIAM ERNEST
IPC: F16K31/40
Filed: 1959-01-24
Abstract: 881,125. Valves. MAGNETIC VALVE CO. Ltd., and WINN & CO., CHARLES. April 22, 1960 [Jan. 24, 1959; Sept. 2, 1959], Nos. 2685/59 and 29897/59. Class 135. A fluid control valve comprises a piston or diaphragm 15 carrying or coupled to a main valve closure member 14 adapted to co-operate with a seat 12, the diaphragm being exposed on the side remote from the closure member to the pressure in a chamber 20 which is in communication with the upstream side 11 of the main valve seating through a passage 17, 18, 19 and with a downstream side of the seating through two auxiliary valves of which one is power-operated and the other is independently operable either manually or by an independent power means to allow the main valve to be opened or closed in the event of failure of the power supply for operating the first auxiliary valve. As shown, the first auxiliary valve is actuated by a solenoid 27, 28 and the second auxiliary valve, in the form of a screwed plug 31, Fig. 2, is operated by rotating with a screwdriver in order to open or close a port 29. In operation, with the solenoid-operated auxiliary valve closed, fluid passes from the upstream side 11 of the valve through passages 17, 18, 19 to act on the diaphragm 15 and thereby maintain the valve 14 closed. Upon energization of the solenoid 27, 28 the auxiliary valve is opened and the fluid pressure in the chamber 20 is leaked off to the downstream side of the valve 14 via passages 24, 25; screwed restrictors 36, 37 may be provided in the passages 17, 18, 19 and 24, 25 respectively. In the event of the solenoid failing to operate, the screwed valve 31 may be opened manually, the pressure in the chamber then being relieved through passages 29, 30, 24, 25. In a modification the closure member 14 and solenoid-operated valve are normally open, energization of the latter valve causing the main valve to close; a screwed second auxiliary valve is provided. In a further modification, both auxiliary valves may be located remote from the main valve and a fluid pressure supply other than the control fluid provided in order to actuate the main valve.
Patent GB-1520675-A (GB)
Title: Magnetic cores of ferromagnetic powder
IPC: B29C33/76
Filed: 1976-01-23
Abstract: 1520675 Magnetic core VOGT & CO KG 23 Jan 1976 [24 Jan 1975] 2713/76 Heading C3H A magnetic core formed by injection moulding of a mixture of a ferromagnetic powder and a pre-formed binder comprising a thermoplastic polymer, e.g. polypropylene, and a strengthening agent in the form of fibres, e.g. glass fibres, carbon fibres or boron nitride fibres.
Patent GB-119388-A (GB)
Title: Improvements in or relating to the Measurement or Indication of Alternating Electric Current Quantities and Apparatus therefor.
Inventor: FAWSSETT EVELYN
IPC: G08C19/00
Filed: 1918-02-16
Abstract: 119,388. Fawssett, E. Feb. 16, 1918. Current and pressure at distant places, measuring; power meters; phase-differences, measuring; temperature errors, compensating for.-Current, pressure, power, phase-differences, and other quantities in an alternating-current circuit are indicated at a distance by means of thermally generated direct currents. As shown in Fig. 1, current at the generating station A is measured at a distant control station by means of a current transformer C, a heater D, and a thermo-couple E which is connected by pilot wires F to a milliammeter G. Power is measured by two thermocouples E<1>, E<2>, Fig. 2, connected in opposition, and heated by separate resistances D<1>, D<2> connected to separate current and pressure transformers C<2>, C<3>, and H. Wattless power is similarly indicated by substituting a condenser for the high resistance J. Power-factors may be indicated by connecting two pilot circuits, one for true and the other for wattless power, to a phaseindicating instrument. Synchronism is indicated by a single thermo-couple and a heater connected to two pressure transformers in opposition. Temperature errors due to the copper pilot wires and coils of the indicating instrument may be compensated by inserting nickel or iron shunts or carbon lamp series resistances. Relays may be provided to short-circuit the heaters when the current is excessive.
Patent GB-435906-A (GB)
Title: Improvements in and relating to the protection of machine parts, more particularly of turbine blades, against high temperatures
IPC: F01D5/18
Filed: 1935-01-29
Abstract: 435,906. Turbine &c. blades. AKT.- GES. BROWN, BOVERI, & CIE, Baden, Switzerland. Jan. 29, 1935, No. 2897. Convention date, Jan. 29, 1934. [Class 110 (iii)] A turbine &c. blade having a channel b to which cooling medium is supplied, is formed with a slot a on the rounded inlet edge so that the issuing stream forms a protective layer c along the faces of the blade. The blade edge may have several slots a, a<1>, a<11>, Fig. 3, connected to channels in which different pressures prevail. In the case of a steam turbine the cooling medium may be steam tapped from a suitable point in the plant.
Patent GB-192280-A (GB)
Title: Improvements in electric switches
IPC: H01H23/16
Filed: 1922-02-01
Abstract: 192,280. Cable Accessories Co., Ltd., Reeves, F. H., and Davis, P. W. Feb. 1, 1922. Switches, quick-action.-In tumbler switches having both a quick make and a quick break action produced by spring - controlled toggle mechanism which crosses the line of centres, one of the members of the toggle engaging with an abutment to give a positive initial movement, the tumbler lever is separate from the toggle and connected to it by a link, and the abutment is made integral with or forms part of the base-plate of the switch. As shown in Figs. 1 and 2, the contact arm 1 is attached to a double-armed carrier 2 pivoted at 3 and slotted. A plate 13 is mounted between the arms of the carrier by means of projections which fit into the slot, and the plate has a hole through which projects the pin 8 of the toggle 8, 7. The knee of the toggle is connected to the inner end of the tumbler by a link 9. In the closed position a bent-up end 15 of the plate 13 engages with an integral projection 16 from the switch base or with the side of a recessed base and, as the toggle is straightened to open the circuit, the angular movement of the pin 8 causes a corresponding movement of the plate which bears upon the abutment and produces an initial positive movement.
Patent GB-941857-A (GB)
Title: Apparatus for the purification of waste water
IPC: B01D21/34
Filed: 1962-01-25
Abstract: <PICT:0941857/C1/1> The bottom of a sewage treatment tank is covered by aeration plates to which are supplied with air, via channel h and conduit i, which escapes through holes e and f into the tube d to give an effective aeration rate.  The tubes may be made of a plastic material and may be detachable.  An activated sludge process which can be used with the aeration device by means of baffles and flaps which divide the tank into treatment zones is illustrated in Figs. 4 and 5 (not shown).