baber/WOPTO huggingface dataset:
Patent GB-500337-A (GB)
Title: Combined liquid heater and steam de-superheater
IPC: F22G5/16
Filed: 1938-08-06
Abstract: 500,337. Loop-tube heat-exchangers. DOBBS, A. G., HUNTER, H., and WALLSEND SLIPWAY & ENGINEERING CO., Ltd. Aug. 6, 1938, No. 232,60. [Class 64 (iii)] A combined liquid heater and steam desuperheater for heating liquid fuels, oils, chemicals or mixtures in which coal &c. is suspended, comprises a heating chamber 1 with a desuperheated steam inlet connection 12 and tubes 8 transversed by the liquid to be heated in passing from compartment 3 to compartment 4 of a header 2, and a chamber 10 in which condensate from the heating chamber is utilized to cool the heating steam before entry into the heating chamber. Superheated steam enters a coil 11 immersed in condensate through a valve 14, the other end of the coil being connected by a pipe 13 with the inlet 12. A condensate overflow branch 15 leading to a drain trap 16 is so located that the coil 11 is always immersed.
Patent GB-966174-A (GB)
Title: Improvements in or relating to tombstones and grave surrounds
IPC: E04H13/00
Filed: 1963-06-11
Abstract: 966,174. Grave surrounds. H. B. WALTER. June 11, 1963 [June 26, 1962], No. 23278/63. Heading E1A. A tombstone and grave surround consists of an assembly of concrete units comprising a plinth 9 slotted at 8 to receive the headstone 5, a plurality of surround wall slabs and corner slabs 11 all interconnected as by tongue-and-groove connections 15, 16, see also Fig. 3 (not shown) for a slight modification of the plinth 9. At least the front face of the headstone may be treated with a weather resistant synthetic resin, with or without filling material incorporated therein.
Patent GB-335007-A (GB)
Title: Process for the commercial production of di-calcium phosphate
IPC: C05B11/08
Filed: 1929-07-30
Abstract: 335,007. Holz, A., and Berdell, T. van D. July 30, 1929. Phosphoric acid.-In the preparation of dicalcium phosphate, phosphoric acid is formed as an intermediary product by acting on crude rock phosphate with an equivalent mixture of sulphuric and hydrochloric acids, obtained by passing chlorine and an equivalent amount of sulphur dioxide into water.
Patent GB-1393682-A (GB)
Title: Hydraulic control valve system
IPC: F15B11/04
Filed: 1972-05-18
Abstract: 1393682 Valves MASSEY-FERGUSON Inc 18 May 1972 [20 May 1971] 23415/72. Heading F2V A valve system for a tractor comprises a pair of spools 30, 32 which are oppositely actuated by a lever 22 to connect one of the motor ports 40, 42 to an inlet 31 and the other to exhaust 34, Each motor port has a seat 44, 46 which is normally closed by a valve member 58, 60 having an aperture 106 and which is opened to exhaust the motor port by a pilot valve 62, 64 moved by the coaxial spool to simultaneously vent the chamber 116 and restrict the flow through aperture 106. Pressure flow to the motor ports is via lateral ports 48, 50 and check valves 56, 59. As shown, two pairs of spools are mounted side-by-side in a block connected to a gear-driven pump 12. The spools are held in neutral and actuated positions by a spring loaded detent 68 which is held away from the spool when inlet pressure moves a spring-loaded pilot valve 92 to connect chamber 100 that communicates with port 70 to the inlet, At the higher inlet pressure valve 92 vents the space above closure member 72 to atmosphere at 104 so that the closure member 72 can move upwards to vent the inlet to atmosphere at 79. The inlet is normally vented when the spools are in their neutral position due to the space above the closure member 72 being vented via passages 84, 86, 88, 90 and 79.
Patent GB-860061-A (GB)
Title: Improvements in devices for limiting the power losses in direct current control devic
IPC: G05F1/563
Filed: 1959-07-08
Abstract: 860,061. Automatic voltage control systems. SVENSKA RELAFABRIKEN A.B. July 8, 1959 [Aug. 29, 1958], No. 23524/59. Class 38 (4). In an automatic D.C. voltage stabilizer of the series transistor type, a second voltage stabilizer controls the input voltage to the first so as to keep the voltage drop across the series transistor within limits. In one embodiment the first stabilizer consists of the transistor Q5 in series with a D.C. supply derived from rectifiers D1, D2, the transistor Q5 being controlled via an emitter follower Q4 from an amplifier Q3 which compares the output voltage across capacitor C3 with a reference voltage derived from Zener diodes D11, D12 and an auxiliary rectifier D3. The second stabilizer consists of a transistor Q8 in series between the supply rectifiers D1, D2 and the transistor Q5. Transistor Q8 is alternately rendered conducting and non-conducting for periods dependent upon the voltage across transistor Q5 by means of a transistor amplifier Q6, Q7. Transistor Q6 is controlled by a pulsating voltage derived from rectifiers D8, D9 on which is superimposed the voltage across transistor Q5 opposed by a reference voltage across capacitor C5 derived from a rectifier D10. In a second embodiment, Fig. 4 (not shown), the second stabilizer consists of a full-wave rectifying transductor in series with the main supply, the transductor control winding being energized by a transistor amplifier in accordance with the difference between the voltage across the series transistor and a reference source.
Patent GB-310309-A (GB)
Title: Improvements in packing and a method of and apparatus for forming the same
IPC: F16J15/14
Filed: 1928-08-17
Abstract: 310,309. Crane Packing Co., (Assignees of Walton, J. N.). April 23, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Packing, non-metallic; metallic. - Packing comprises a mixture of finely divided lead or other soft metal with graphite, to which are added asbestos or other fibre or cork, and finally a binder such as liquid rubber composition or petroleum tailings. Suitable proportions comprise 10 parts of asbestos, 20 parts binder, 100 parts lead and 36 parts graphite. The volatile constituents may be evaporated by exposure or heat. The composition may be enclosed in a woven or braided wire or non-metallic sheathing, over which metal foil may be wound. Apparatus for filling the composition into the sheathing comprises a cylinder 17, the piston 16 of which is operated by an hydraulic press 10 with pump 11 and control valve 13. The composition is placed on a trough 24 and is carried into the cylinder by the piston and forced through the conical end 20 into a tube 21 secured to a nozzle 22. The sheathing 25 is gathered on the tube, 21 and is drawn off the tube by the entrance of the composition, the movement of the sheathing being retarded by spring-actuated rollers 28.
Patent GB-532141-A (GB)
Title: Improvements in and relating to electric conductors and in the method of manufacturing the same
IPC: H01B7/16
Filed: 1939-08-17
Abstract: 532,141. Cables. BRITISH THOMSONHOUSTON CO., Ltd. Aug. 17, 1939, No. 23752; Convention date, Aug. 18, 1938. [Class 36] A process for the production of leads or cables which consist of one or more conductors, of a mineral insulating substance surrounding these, and of an external protective casing, and which may be drawn from short thick conductor parts until the desired cross-section is at'ained consists in continuously spraying the mineral substance in the plastic state on to the conductor or conductors and then drying before, after, or during drawing into the external metal casing. Suitable insulat ing substances are magnesium oxide and silicate, and alumina mixed with water or other binding agents to render them sufficiently plastic. The insulated conductors may be pushed into the external casing just after leaving the spraying machine, or they can be drawn into the casing after the drying process. The subsequent drawing of the lead may consist of only a single drawing process, or may be omitted. The external casing may be a tube bent from sheet metal and having a welded or soldered seam. The conductors and the protective casing may be of aluminium or of similar material other than copper.
Patent GB-1384166-A (GB)
Title: Adducts of hexafluoropropene and propylene
IPC: C08F214/28
Filed: 1972-05-19
Abstract: 1384166 Fluoro compounds PENNWALT CORP 19 May 1972 [24 May 1971] 23778/72 Heading C2C [Also in Division C3] The invention comprises cis- and trans-1- trifluoromethyl - 1,2,2 - trifluoro - 4 - methylcyclobutane, 4,4,5,6,6,6 - hexafluorohexene - 1 and 4,4,5,6,6,6-hexafluorohexene-2. The compounds are prepared by reacting hexafluoropropene and propylene.
Patent GB-1284762-A (GB)
Title: Improvements in or relating to gas turbine engine power plants
Inventor: MOTTRAM ANTHONY WILLIAM THOMAS
IPC: F02C1/00
Filed: 1969-05-09
Abstract: 1284762 Gas turbine plant - closed cycle type ROLLS-ROYCE Ltd 6 May 1970 [9 May 1969] 23880/69 Headings F1G and F1Q A gas turbine power plant comprises compressor means, fluidized bed combustion means including heat exchanger means connected to receive working fluid compressed by the compressor means in heat exchange relation with the fluidized bed, and turbine means connected to receive and be driven by the working fluid heated by the fluidized bed combustion means and which is drivingly connected to the compressor means; the compressor means, the heat exchanger means of the fluidized bed combustion means and the turbine means forming a closed circuit. The plant shown utilises helium as the working fluid and comprises LP compressor 10 and HP compressor 12 with inter-stage cooling 26, both compressors being driven by HP turbine 16 through shaft 18. The working fluid from compressor 12 is preheated in heat exchanger 28, further heated in heat exchanger 46 and finally heated in coils 39 disposed in a fluidized bed combustion chamber 34. The heated fluid is then passed to HP turbine 16 then to separate LP turbine 20 which drives an alternator 22. The working fluid discharging from turbine 20 passes through heat exchanger 28 to preheat the working fluid and then passes through precooler 24 before passing back into LP compressor 10. Air under pressure from compressor 38 passes to inlet 37 of the fluidized bed combustion chamber 34 and the combustion gases discharge therefrom to the turbine 40 which drives the compressor 38 also an alternator 42. The exhaust gases from the turbine 40 pass through a heat exchanger 50 to preheat air passing from the compressor 38 to the combustion chamber. A second portion of exhaust gases from the turbine 40 passes through the heat exchanger 46 to preheat the working fluid flowing therethrough. The fluidized bed combustion chamber contains particulate material such as a particulate fuel for example coal or coke dust or a non-combustible particulate material such as sand supplied with liquid fuel such as kerosene or gaseous fuel such as methane.
Patent GB-750220-A (GB)
Title: Electrodialysis apparatus
Inventor: HOEK CORNELIS VAN
IPC: B01D29/46
Filed: 1952-09-23
Abstract: 750,220. Electrodialysis apparatus. NEDERLANDSE CENTRALE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK. May 28, 1953 [Sept. 23, 1952], No. 23893/52. Class 41. In a multi-cell electrodialysis apparatus in which the space between two electrode chambers is subdivided by a series of alternate positive and negative membranes, preferentially allowing negative and positive ions to pass respectively into alternate dialysis and rinsing cells, the dialysis cells having a common outlet and the rinsing cells having a separate common outlet, each common outlet consists of a line of holes; one in each membrane, the border of each hole in a membrane bounding a cell being held in liquid-tight contact with the border of the adjacent corresponding hole in the next membrane bounding the following similar cell. Where the dialysate and rinsing liquid are different the dialysis cells have a common inlet and the rinsing cells have a separate common inlet, each common inlet consisting of a line of holes arranged similarly to the common outlets. Where the dialysate and rinsing liquid are the same, all the membranes may be provided with a single line of holes which forms a common inlet for all the cells, the membranes in the vicinity of these holes remaining in spaced relation to each other. In Fig. 2 alternate positive and negative membranes 1, 1<SP>1</SP>, 2 and 21, &c., are held by frames and form alternate dialysis and rinsing cells. The dialysis cells have a common inlet 6 and the rinsing cells have a separate common inlet 7 (Figs. 2 and 3), each common inlet consisting of a line of holes, one in each membrane, the border of each hole in a membrane bounding a cell being held in liquid-tight contact with the border of the adjacent corresponding hole in the next membrane bounding the following similar cell. The dialysis cells have a common outlet 6<SP>1</SP> and the rinsing cells have a separate common outlet 7<SP>1</SP>. The common inlet 6 for the dialysis cells is formed by cementing together the borders of the holes near the bottom left-hand corner (Fig. 3) of membranes 1 and 2, 1<SP>1</SP> and 2<SP>1</SP>, &c. The borders may also be joined by heat-sealing, or the borders may be pressed against each other by discs (Fig. 5) consisting of flat plates 9 and 10 and a liquid-permeable filling 8, which may be corrugated and perforated polyvinyl chloride sheet, the discs being positioned on both sides of each pair of holes. The discs have a thickness of twice that of each frame. In another embodiment frames are provided having portions with holes to correspond with holes in the membranes, the borders of the membrane holes being glued to the holes in the frames, or pressed against them by pressing members. Specification 750,238 is referred to.
Patent GB-1529230-A (GB)
Title: Process for the preparation of supersaturated mg(hco3)2 solution having low cao concentration
IPC: C01F5/24
Filed: 1977-06-08
Abstract: 1529230 Supersaturated magnesium bicarbonate solution MAGNEZITIPARI MUVEK 8 June 1977 23933/77 Heading C1A Supersaturated Mg(HCO 3 ) 2  solution having a CaO concentration of at most 200 mg/1 is made by grinding partially or totally calcined dolomite to grain size less than 100 microns, suspending the ground material in water to form a pulp containing 18-40 g/1 MgO, introducing C0 2  into the pulp at 10-40‹ C. until superatmospheric pressure of C0 2  is established, introducing 70-200 kg/m<SP>3</SP> of pulp of CO 2  and liquid hydrocarbon having 3-9 C atoms and low boiling point in an amount of up to 5% based on C0 2  for up to one hour and thereafter filtering the mixture obtained at a rate of up to 800 1/m<SP>2</SP>. hour.
Patent GB-857017-A (GB)
Title: Sight glass fluids and sight glasses containing them
IPC: F16N7/06
Filed: 1959-07-13
Abstract: A fluid, suitable for use in sight glasses for indicating the flow of a lubricating oil, consists of a solution of calcium nitrate dissolved in a mixture of glycerol and water.  Preferably the fluid contains 35-55% by weight of the total composition of calcium nitrate, and the ratio of glycerol to water is preferably 0.5:1 to 1.5:1 by weight.  A preferred fluid contains 50% calcium nitrate dissolved in a 0.82:1 glycerol-water mixture.
Patent GB-189575-A (GB)
Title: Improvements in or relating to stiffeners suitable for corsets, and the like
IPC: A41C1/16
Filed: 1921-09-09
Abstract: 189,575. Terry & Sons, Ltd., H., and Terry, C. Sept. 9, 1921. Stiffeners. - Relates to a stiffener of the type comprising a plurality of wires each of which extends obliquely across one face of the stiffener, then bends through 180‹ and extends obliquely across the other face to form a bow, after which at the other edge of the stiffener each wire bends again through 180‹ in so far as the thickness of the etiffener is concerned, and through more than 180‹ to form a loop. According to the invention five wires a - - e are employed, the successive wires of the respective loops are, longitudinally of the stiffener, located in close proximity to each other to produce a substamtially solid formation of the fabric of the stiffener. Specification 14099/95 is referred to.
Patent GB-337474-A (GB)
Title: Marksmanship indicating apparatus
IPC: G07F17/38
Filed: 1929-08-06
Abstract: 337,474. Haddan, R., (Clavir, H.). Aug. 6, 1929. Shooting - apparatus; coin action mechanical - connection.-A plunger 71, Fig. 8, has an extended reciprocating movement for re-setting mechanism of a marksmanship indicating apparatus of the sub-target type, The extended movement is normally prevented by a lever 73 pivoted to a fixed part of the machine which lever contacts with the top edge of a recess 72 in the plunger. On inserting a coin in the recess 72, the, lever 73 slides over the coin and allows the plunger to be moved to re-set the machine.
Patent GB-739398-A (GB)
Title: Improvements in or relating to capsules for converting a fluid pressure into a load
Inventor: CAMPBELL KENNETH WILLIAM
IPC: G01M5/00
Filed: 1953-08-31
Abstract: 739,398. Fluid pressure - load capsules. BOULTON PAUL AIRCRAFT, Ltd. Aug. 28, 1954 [Aug. 31, 1953], No. 24015/53. Class 106 (2). [Also in Group XXVI] A fluid pressure-load capsule comprising a diaphragm 10 and base 1 enclosing a space for the fluid, and a piston 14 for receiving the load, has the periphery of the diaphragm clamped between a retaining ring 3 and a clamping ring 6, the latter having a tapered outer surface 8 which results in the diaphragm being placed under a slight initial tension. The piston may be centred by a corrugated metal diaphragm 17.
Patent GB-414528-A (GB)
Title: Improvements in and relating to submarine cables
IPC: C08L7/00
Filed: 1933-08-30
Abstract: In making joints in submarine cable insulation, the jointing material consists of a mixture of guttapercha or balata and polystyrol or its homologues, the insulation of the cables being of a different composition, e.g. of guttapercha or paragutta. Wax, caoutchouc or some other softening agent may be added when large proportions of polystyrol are used.  A mixture may comprise 85 per cent deresinated balata and 15 per cent polystyrol. Specification 414,527 is referred to.
Patent GB-1377578-A (GB)
Title: Sterring control means
IPC: G05D1/02
Filed: 1972-05-23
Abstract: 1377578 Automatic control of steering SPERRY RAND CORP 23 May 1972 [7 June 1971] 24114/72 Heading G3R For a ship 11 having steering apparatus 17 which produces an electrical command signal to control the rudder 35 angle, a control means comprises a tachometer 24 producing a first electrical signal indicative of the speed of the ship, a computer 43 receiving the first signal and a second electrical signal indicative of the rate of turn of the ship from yawrate transmitter 21 via low pass filter 26 which computer produces a third electrical signal representative of the product of the first and second signals which third signal is applied to a shaping circuit 47, including for example an adjustable gain amplifier or potentiometer, to alter the transfer characteristics of a summing amplifier 35 whereby the magnitude of the rudder command signal is restricted as an inverse function of the third signal. The object is to relate the rate of turn with the ships speed to prevent excessive heel.
Patent GB-1415989-A (GB)
Title: Valve spools
IPC: F16K11/07
Filed: 1974-05-31
Abstract: 1415989 Valves INTERNATIONAL HARVESTER CO 31 May 1974 [31 May 1973] 24218/74 Heading F2V In order to reduce axial forces on a landed valve spool having a throttle formed by a notch such as 90a in a land, or by a chamfer on the land, a cavity 94a is provided which extends into the radial interior of the spool and opens radially outwardly into the throttle alone, i.e. does not open outwardly into shank 64. A further throttling notch 90b and associated cavity 94b are provided diametrically opposite notch 90a. The cavities 94a, 94b may merge at their radially inner ends. The spool may form part of a multi-way valve controlling the flow of actuating liquid to and from an hydraulic motor (16, Fig. 1, not shown).
Patent GB-1143044-A (GB)
Title: Ultra-violet exposure machine
IPC: G03B27/10
Filed: 1967-05-24
Abstract: 1,143,044. Contact-printing apparatus. N. B. JACKETS CORP. May 24, 1967 [May 26, 1966], No. 24253/67. Heading G2A. An ultraviolet contact-printing exposure machine comprises a transparent drum 10, which is more than 10 inches in diameter, a coaxially mounted U.V. lamp 14, a cage of circumferentially spaced wheels 21, 22, 23 to floatably mount said drum end wise movement of the drum being restricted by wheels not shown, continuous belts 12A, 12B, 12C and 12D having an inner arcuate section engaging the major portion of the circumference of the drum, the remaining portion constituting an opening into which a microfilm and duplicating film may be introduced between said belt and drum, means to tension said belt e.g. a spring-biased roller 29 and motor means not shown to drive said belt. The drum may contain an optical wedge 33 to correct non-uniform emission of the lamp. The belt may be mounted on rollers one of which 30 serves as a hinge for a door 32 and another of which 31 is rotatably mounted on the door whereby access is provided to clean the drum. The drum may be cooled by an air blower and be provided with a transparent polyethylene terephthalate skin and itself be made of plastics material or glass.
Patent GB-244714-A (GB)
Title: Improvements in hammer drills
IPC: B25D17/06
Filed: 1925-09-29
Abstract: 244,714. Jones, E. F. Dec. 18, 1924, [Convention date]. Percussive drills.-In a hammer piston with a front extension, the forward fluted or polygonal part 5 of the extension which engages the chuck is made of greater width than the rear cylindrical part 4, which may be packed as shown. The front cover may be made in halves, held together by a ring 14. The extension is so proportioned that the fluted part always lies in front of the cylinder head.
Patent GB-700042-A (GB)
Title: Improvements in the production of sodium hyposulphite
IPC: C01B17/66
Filed: 1951-10-18
Abstract: Sodium hyposulphite is produced by reducing an aqueous solution of sodium hydrogen sulphite with sodium amalgam containing less than 0.1 per cent. of sodium.  A less dilute sodium amalgam may be employed if the reactant solutions are allowed to form two layers and one or other or both of the reactant solutions are stirred such that the sodium amalgam contains less than 0.1 per cent. of sodium at the aqueous solution-sodium amalgam interface. According to one method employing the apparatus shown in Fig. 1 sodium amalgam containing from 0.1-0.2 per cent. of sodium is continuously introduced through a pipe C and is stirred by a stirrer B.  A plate D is arranged above the pipe C to provide better distribution of the amalgam.  A solution of sodium bisulphite is continuously supplied through a pipe E and sulphur dioxide <PICT:0700042/III/1> <PICT:0700042/III/2> is continuously supplied such that a pH value between 5 and 6 is maintained.  Flow breakers G ensure that the solution has a movement relative to that of the mercury.  Solution and mercury almost free from sodium are withdrawn through a pipe F.  According to a modified method employing the apparatus shown in Fig. II, a hollow shaft E, of the stirrer B serves as a pipe for supplying the aqueous solution which issues through openings E2 and thus ensures that the boundary surface between the mercury and the aqueous solution is continuously renewed.  Overflowing mercury collects in a channel H and separates from the aqueous solution in a pipe F1.  The aqueous solution is withdrawn through a pipe F2.
Patent GB-929706-A (GB)
Title: Improvements in or relating to quilted fabrics
Inventor: EATOUGH GEORGE
IPC: A47C27/14
Filed: 1959-07-16
Abstract: 929,706. Laminates. BRITISH QUILTING CO. Ltd. April 1, 1960 [July 16, 1959], No. 24412/59. Class 140. [Also in Group IX] Quilted fabrics are characterized in that the wadding thereof is of a foamed material and at least one side of the fabric is raised. The foamed material 12, Fig. 1, may be in sheet or crumb form, and may be a polyester or polyether polyurethane, foamed natural, or synthetic rubber. The fabric 13a and 136 may be printed, woven cotton. The fabric may be used as a cover for a mattress.