baber/WOPTO huggingface dataset:
Patent GB-1069066-A (GB)
Title: A method and apparatus for determining the level of a liquid
Inventor: TRETHEWEY WILLIAM CHARLES
IPC: G01F23/16
Filed: 1965-07-02
Abstract: 1,069,066. Liquid level control. OWENS-CORNING FIBERGLAS CORPORATION. July 2, 1965, No.28145/65. Heading G1H. In a method of and apparatus for controlling the level 26 of a liquid 20, such as molten glass in a furnace, air or gas under pressure is fed through a pipe 24 to a probe 25 so as to produce intermittent gas bubbles beneath the surface 26 and a further probe 29 above the surface 26 senses the ambient atmospheric pressure, and the pressures at both probes 29, 25 are fed to one or other of the sides of a diaphragm of a transmitter and any pressure difference due to the alteration in the level of surface 26 is fed to an amplifier 80 to actuate a recorder-controller to operate an air actuated piston 106 which regulates a variable speed drive 112 operating a screw 114 feeding powdered glass into the furnace 14.
Patent GB-424595-A (GB)
Title: Improvements in sinks for use in conjunction with beer and like pumps
IPC: B67D1/16
Filed: 1933-10-12
Abstract: 424,595. Brackets. CHAMBERS, SiR C., Monkspath Priory, Shirley, Birmingham. Oct. 12, 1933, No. 28150. [Class 52 (v)] [See also Group XXVIII] A sink 10 for use in conjunction with beer &c. pumps comprises a stainless steel or other metal trough like member 12 having an integral flange 11 of inverted channel cross section around its edge, the end flanges being adapted to be suspended on a pair of arms carried by the supporting structure 13 of the beer pump. Each arm comprises a forwardly extending rail 15 adapted to engage beneath one of the end flanges and an attachment portion 14 pivoted on a pin 16 and engaging a stop 18, a recess 19 in the structure 13 being adapted to accommodate the arm when not in use. The rear edge of the sink engages in a cut-away recess 20 in the top of rail 15. Modified constructions of the arms are described Figs. 3-7, (not shown), in which (a) the rail 15 is integral with an attachment portion adapted to be rigidly secured to the structure 13, (b) the rail is hinged to the attachment portion so as to turn in a vertical or horizontal plane and (c) the rail is formed separate from the attachment portion and is provided at its inner end with a tongue adapted to slide into a channelled shaped attachment portion rigidly secured to the structure 13. Fig. 8 shows a further modification in which each arm comprises a rod 30 with a flat attachment portion 31 and the sink is provided at each side edge with a part cylindrical flange 32 adapted to be slid on to the rods 30 until a flange 33 at the back of the sink engages beneath a part of the beer pump structure.
Patent GB-1094721-A (GB)
Title: Improvements in and relating to plant for the piercing and extrusion of billets
Inventor: DEAN LESLIE GEORGE
IPC: B21C23/00
Filed: 1963-07-17
Abstract: 1,094,721. Extruding; billet piercing. LOEWY ENGINEERING CO. Ltd. July 17, 1964 [July 17, 1963], No. 28265/63. Headings B3H and B3P. An extrusion plant for producing tubes and the like comprises an extrusion press EP, a billet piercing press PP, a group of primary heating units H1-H4 and a group of secondary heating units H5-H8, the piercing press and the heating units being arranged on opposite sides of a plane M-M perpendicular to the extrusion axis A-A. Billets which may be solid or have small bores, enter at R1 and are fed by pushers P1-P6 into horizontal induction heaters H1-H4 and then on to carriage SC4 which moves them through a descaling unit DS1 having steam or water jets. The billets then pass along roller tables RT2, R2 where they are coated with pulverised lubricant and into receptacle RE1 from which they are transferred by mechanism TG1 into the vertical hydraulic piercing press PP which has two billet holders 10 on a rotary table 11. The transfer mechanism TG1 is preferably of the kind described in Specification 1,094,722 and similar mechanism TG2 moves the pierced billets to a receptacle RE2 from which they are transferred along roller table RT3 to secondary heaters H5-H8 of the vertical induction type. After passing through a further descaling unit DS2, the billets are coated internally with lubricant by units LB1, LB2 and then roll down table R3 where they are coated externally with lubricant, and into the extrusion press E.P. This consists of rotary carrier 4 for containers 3 into which the billets are pushed by member 5. Dies are mounted on a rotary die carrier 6. After extrusion by a press stem 1 and independently movable mandrel 2, the extruded tubes pass along run out table 7 and into a cooling bed CB. Stainless steel billets may be arranged to by-pass the de-scalers DS1, DS2. Billets may also enter the plant R4 and pass directly into the heaters H5-H8 or they may pass directly from the heaters H1-H4 along track T5 to the extrusion press E.P. Another embodiment is described, Fig. 1 (not shown), where the table R3 is displaced to the left of track T5.
Patent GB-646907-A (GB)
Title: Improvements relating to electric storage battery testers
IPC: G01R31/36
Filed: 1948-11-01
Abstract: 646,907. Current and voltage measuring. HEALEY, T. G. P. Nov. 1, 1948, No. 28273. Addition to 573,267. [Class 37] A storage battery tester comprises a pair of sheet - metal tines a separated by insulating material and connected by a resistance k, the instrument being connected to the tines a over a flexible lead p, preferably passing through the handle d.
Patent GB-408642-A (GB)
Title: Improvements in or relating to the manufacture and production of hard metal alloys
IPC: C22C5/04
Filed: 1932-10-11
Abstract: Hard alloys, particularly for tipping gold nibs and compass needles contain more than 40 per cent of osmium or ruthenium, or both, or native or synthetic osmiridium, together with one or more elements selected from the two groups (a) iron, cobalt, nickel, and (b) chromium, molybdenum, tungsten, and one or more elements from a third group comprising carbon, silicon, boron, titanium, aluminium, the amount of the elements of the third group not exceeding 5 per cent. Osmiridium is stated to contain 40-60 per cent of osmium, 60-40 per cent of iridium, and 0-20 per cent of ruthernium.  The alloys may be made by melting together the powdered constituents, the elements of the third group preferably being added in the form of alloys with the elements of the other groups.  According to the Provisional Specification the alloys contain at least 40 per cent of the above-mentioned metals of the platinum group and one or more elements selected from iron, cobalt, nickel, chromium, molybdenum, tungsten, carbon, silicon, boron, titanium, and aluminium.
Patent GB-603652-A (GB)
Title: Combination mechanism for locks
IPC: E05B37/16
Filed: 1945-10-26
Abstract: 603,652. Permutation locks. KETNER, L. P. G. Oct. 26, 1945, No. 28343. Convention date, Dec. 18, 1943. [Class 44] Mechanism for a permutation lock comprises a number of axially movable members 6, provided with pins 7 extending at right angles thereto, and a block 2 slidable towards the members 6 in a casing 1, the block 2 being formed with milled-out slots 4 in which are placed code plates 5, each plate having a perforation 9 in one of a number of positions to permit the passage of the corresponding pin 7 when the block 2 is depressed, provided that the pins are first brought into register with the holes 9 by adjusting the members 6 in accordance with the combination. The block 2 is operatively connected to the bolt of the lock. The plates 5 may be positively secured in the block 2, or may be retained only by the front and rear walls of the casing 1.
Patent GB-683212-A (GB)
Title: Improvements in carding engines for textile fibres
IPC: D01G31/00
Filed: 1949-11-05
Abstract: 683,212. Stop motions for carding engines. HOLDSWORTH & GIBB, Ltd., and JONES, C. Nov. 3, 1950 [Nov. 5, 1949], No. 28363/49. Class 120(ii) [Also in Group XXIV] A stop motion for the doffer drive of a carding engine, which will come into operation should an obstruction such as a bunch of fibres or an operative's hand be carried around by the doffer to the doffer cover, comprises a bar 2 extending from end to end of the cover arranged at the underside of the front edge of the cover or an extension 1 thereof and carried by a number of arms 4 which project through slots 4a in the cover or extension. Arms 4 are connected by links 5 to levers 6 on a shaft 8, oscillation of which causes the starting lever 21 of the doffer drive to be moved into the "off" position. When an obstruction contacts bar 2, the latter rises and imparts a rotary movement to shaft 8 whereby the doffer is stopped. As shown, rotation of shaft 8 acts through crank 8a, lever 9 and rod 10 to lift a pawl 11 out of engagement with a recess in a bar 13 to allow the latter to move under the influence of a spring 18 so that a striker plate 14 lifts the catch 20 of lever 21; the latter then moves so as to lower a lever 22 and bring doffer driving pinion 24 out of engagement with doffer driving wheel 25. To prevent the doffer being inched around before the obstruction has been removed, forward movement of bar 13 causes the tapered front end 27 of a member 26 to wedge lever 22 in its displaced position in its bracket 28, thus preventing re-engagement of pinion 24 with wheel 25 until bar 13 has been returned to its original position following removal of the obstruction. Means controlled by the doffer may be provided to prevent bar 13 being moved to release lever 21 until the doffer has been rotated a sufficient distance in a backward direction to bring the obstruction clear of the doffer cover and allow it to be removed.
Patent GB-340024-A (GB)
Title: Improvements in or relating to the production of rubber articles
IPC: C08L21/00
Filed: 1929-09-19
Abstract: 340,024. Sheet material for aircraft and boats. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, London, and MADGE, E. W., Fort Dunlop, Erdington, Birming- ham. Sept. 19, 1929, No. 28410. [Classes 4 and 113 (ii).] A light rubber board suitable for use in aeroplane and speed boat construction comprises one or more porous layers of hard rubber or ebonite obtained from aqueous dispersions separating respectively two or more layers of metal, ebonite, ebonite coated metal, fabric reinforced ebonite, ebonite impregnated fabric or ordinary aeroplane material such as doped fabric or plywood. The aqueous dispersions used comprise those containing rubber, guttapercha, balata and similar vegetable resins, which may be natural or artificial, vulcanized or unvulcanized. Alternatives or admixtures include aqueous dispersions of coagulated, synthetic, vulcanized, waste or reclaim rubber, concentrates such as those described in Specifications 219,635 and 290,313, [both in Class 70, Indiarubber &c.], and the usual compounding ingredients. In the example a porous ebonite sheet prepared as described in Specifications 332,525 and 332,526, [both in Class 70, Indiarubber &c.], is cemented to sheets of fabric which have been impregnated with the latex mixing used in the preparation of the porous sheets and allowed to dry, the same latex mixing being used as a cement. The laminated sheet is then press-cured, a compression of about 30 per cent being made. In an alternative method long rolls of cloth are spread thinly with the ebonite froth and dried. The coated fabric is then doubled so as to bring the coated surfaces into contact, using an intermediate layer of the latex mixing as cement if desired and the whole vulcanized under pressure.
Patent GB-341452-A (GB)
Title: Improvements in or relating to steam or other vapour heating systems for buildings or the like
IPC: F24D1/00
Filed: 1929-07-13
Abstract: 341,452. Heating buildings. RAYMOND, F. I., 547, North Keystone Avenue, River Forest, Illinois, U.S.A. July 13, 1929, No. 28427/30. Convention date, July 16, 1928. Divided on 315,712, [Class 64 (ii), Heating systems &c.]. [Class 64 (ii).] A steam or vapour heating system for buildings is regulated thermostatically by a plurality of temperature conditions, one of which is the temperature in or adjacent to the system at a remote point. A heat-sensitive bulb 15 is located adjacent to the most remote radiator 14, and another bulb 21 is arranged outside the building, both being connected to a Bourdon tube 18 operating an electric contact 22 between two fixed contacts 23, 24 which are connected to a device 12 which controls the oil burner of the boiler 10. A room thermostat 25 is provided with high and low temperature contacts 26, 27, connected to the control device 12. The system of wiring may be as in Figs. 1, 3 or 4 of Specification 315,712, [Class 64 (ii), Heating systems &c.].
Patent GB-1312666-A (GB)
Title: Aluminium killed-steel
IPC: C22C38/12
Filed: 1970-06-11
Abstract: 1312666 Aluminium killed steels NIPPON KOKAN KK 11 June 1970 [12 June 1969] 28439/70 Heading C7A A killed steel consists in percent by weight of: C 0À13 - 0À23 Si 0À02 - 0À15 Mn 1À2 - 1À5 soluble Al 0À02 - 0À05 Nb 0À01 - 0À05 balance apart from unavoidable impurities with commercially acceptable tolerances: Fe. The alloy may be used for piping and as structural materials.
Patent GB-1472394-A (GB)
Title: Sand control method employing asphaltenes
IPC: E21B43/04
Filed: 1975-07-07
Abstract: 1472394 Consolidating earth formations TEXACO DEVELOPMENT CORP 7 July 1975 [25 July 1974] 28484/75 Heading E1F A method of forming a permeable barrier around a well bore in a formation containing unconsolidated sand and petroleum comprises ensuring that the well bore is surrounded by granular material containing petroleum having an asphaltic bitumen component; adding a C 3-10  paraffinic hydrocarbon, furfural, N- methyl-2-pyrrolidone, or a mixture thereof to the granular material to precipitate asphaltic bitumen; and introducing into the granular material a heated fluid, e.g. steam, at a temperature of at least 250F to solidify the precipitated asphaltic bitumen. The granular material may be provided by formation solids comprising unconsolidated sand and petroleum having an asphaltic bitumen content, or may be introduced into the well bore adjacent the formation followed by the introduction of petroleum having an asphaltic bitumen component, in the latter case a portion of the formation material immediately adjacent the well bore is removed, e.g. by washing or reaming, to form a cavity before the introduction of the granular material.
Patent GB-722390-A (GB)
Title: Separating methyl acetate from other organic compounds by extractive distillation
IPC: C07C45/83
Filed: 1952-11-12
Abstract: Methyl acetate is separated from a mixture containing methyl acetate, propionaldehyde, acetone, methanol and other alcohols, by subjecting the mixture to extractive distillation using water as extracting agent whereby methyl acetate substantially free from propionaldehyde, but containing a small amount of acetone, is obtained as distillate. A mixture containing methyl acetate (50 per cent), acetone (33 per cent), propionaldehyde (5 per cent), methanol and other alcohols (10 per cent), and water (2 per cent.) is fed onto the 20th tray (from the top) of a 50-tray column; and water is introduced into the column at about the 5th tray from the top.  The concentration of water in the liquid phase on the upper trays is maintained at about 67 per cent by weight.  The distillate contains 91 per cent of methyl acetate and 6 per cent of acetone.  The reflux ratio is maintained at 5 to 1.  About 99 per cent of the methyl acetate introduced into the system is recovered in the overhead product.  The aqueous mixture separated from the base of the column may be subjected to separate distillation in order to remove the acetone, propionaldehyde and other organic compounds contained therein.
Patent GB-483492-A (GB)
Title: Improvements in or relating to detonating explosives
IPC: C06B29/20
Filed: 1936-10-20
Abstract: 483,492. Explosives. TENNANT, W. J. (Safetee Torpedo Corporation) Oct. 20. 1936, No. 28545. [Class 9 (ii)] A detonating explosive for railway signals comprises chlorate of potash, fibrous carbonaceous material, such as wood-flour or sawdust, granular abrasive material, such as sand, and a nitrocellulosic resinous binder, in the proportions 8:1:8:2. The potash and carbonaceous material are screened, moistened with water, allowed to stand for one hour and then mixed thoroughly, after which the abrasive, also moistened with water, is added. The binder comprises a mixture of solutions of nitrocellulose in butyl and ethyl acetate and resin in ethyl alcohol. The nitrocellulose is reduced in the proportion of one part of nitrocellulose to three parts of each of the acetates, and the resin in the proportion of one part of resin to two of alcohol. The solutions are mixed in equal proportions and added to the mixture of potash, carbonaceous material and abrasive, which is divided into cakes which are dried at a temperature preferably not exceeding 150‹ F.
Patent GB-519787-A (GB)
Title: Improvements relating to brakes
IPC: F16D65/22
Filed: 1938-10-01
Abstract: 519,787. Brakes. ROVER CO., Ltd., and IVERSEN, P. A. SCOTT-. Oct. 1, 1938, No. 28558. [Class 103 (i)] The co-operating friction surfaces of brakes or parts of them are normally held lightly in contact or there normally exists in the operating system a force which in the absence of friction inherent in the system would hold them in light contact, the arrangement being such in the latter case that the movable surfaces return a constant amount after each application. Fig. 1 shows a hydraulically operated brake in which the reservoir l normally communicates with the system by the pipe k the outlet of which is covered when the piston h is operated. Release springs for the shoes b are dispensed with and the reservoir is arranged at such a height that the shoes are normally held in light contact with the drum by the hydraulic pressure. The shoes may also be held in contact by gravity acting on the shoes themselves or by a spring or weight. Fig. 5 shows a mechanical arrangement in which the shoes are held in contact with the drum by a spring x. The cam' lever t is freely mounted on the cam spindle and carries a pawl w which is normally held disengaged from a ratchet wheel v secured to the cam spindle but which engages the ratchet when the lever is operated to apply effective pressure to the shoes. Variations due to wear and temperature changes are thus accommodated by the freely movable shoes. In Fig. 6, a part 2 of the shoe b which is radially displaceable to a limited extent on the main part is normally held in contact with the drum by the normal pressure in the hydraulic system acting through a spring 3 which also maintains the main part of the shoe slightly displaced'from the drum. In Fig. 7, the piston e of rubber has a deformable bellows-like end part 7 which may be reinforced by a deformable metal sheath. The shoes b are normally displaced as shown from the drum. When the hydraulic pressure is increased beyond the normal the friction of the piston in the cylinder also increases, so that the piston extends to contact the shoes with the drum but as wear occurs the piston moves bodily and when the pressure is reduced, the piston again contracts so that a constant clearance of the shoes is maintained. The cylinder may be elastically deformable instead of the pistons. The invention may be applied to cone disc or other types of brake.
Patent GB-483570-A (GB)
Title: Improvements in or relating to forced flow tubulous steam generators
IPC: F22B35/10
Filed: 1936-10-21
Abstract: 483,570. Forced-flow steam boilers. SULZER FRERES SOC. ANON. Oct. 21, 1936, No. 28591. Convention date. Nov. 1, 1935. [Class 123 (ii)] [Also in Groups XXIX and XXXV] In a once-through tubulous steam boiler, devices influenced by the temperature of the working medium at three successive parts of the tube control respectively the liquid discharge from a separator in the system, the supply of additional medium at a point between the first and second devices, and another supply of medium between the second and third devices. A boiler comprising a preheater 9, evaporator 10, and pre- and supplementary superheaters 11, 12, is heated by a burner 17 supplied with fuel through pipes 18 and air through pipe 21, feed liquid being drawn from a condenser 7 by feed pumps 2, 3, and preliminarily heated in steam condensers 29, 30. A separator 13 continuously drains off through a nozzle in a pipe 34 leading to low-pressure boilers 26, 27, and a valved outlet 3S is controlled 1) a servomotor 38 influenced by a device 39 actuated in accordance with the temperature at a point 14. Device 39 also controls a servomotor 48 affecting a valve 49 in a fuel byepass pipe 22. A second temperature-controlled device at point 15 acts through a servomotor 56 to control a valve 57 regulating additional feed to a part 60 of the boiler and also through servomotors 48, 51, to affect the fuel and air supplies. A third temperature-controlled device at point 16 regulates additional feed to a point 67 in the boiler delivery pipe, and by means of a valve 70 the flow of steam to an engine 6 so that the valve tends to close when the temperature rises or falls unduly. To set the generator to suit given conditions of operation a manually-operated lever 43 is movable between an idle running position O to a full load position V to act on governors determining the speed of engines driving the feed and fuel pumps. The lever also affects through servomotors 48, 51, the fuel and air supplies. The arrangement initially provides a greater proportional increase in the fuel supplied than in the feed, the normal ratio subsequently being restored through the agency of the first and second temperaturecontrolled devices or a reduced feed supply relative to fuel may initially be provided. The control impulses are preferably transmitted hydraulically but mechanical or electrical transmission systems may be employed.
Patent GB-865290-A (GB)
Title: Process for the production of acrylamide
IPC: C07C233/09
Filed: 1959-08-21
Abstract: A continuous process for the production of acrylamide comprises the saponification of acrylonitrile with sulphuric acid and water, in which the reaction is carried out at 150-250 DEG C., the time of reaction being less than 20 minutes, and the mixture then being cooled.  Preferably the starting materials are used in equimolar ratio ; polymerisation inhibitors may be present.  The reaction mixture may be worked up in known manner by neutralising the sulphuric acid present.  Reference has been directed by the Comptroller to Specification 631,592.
Patent GB-1394624-A (GB)
Title: Implement with vibratory tamper tool
IPC: E02D3/046
Filed: 1973-06-15
Abstract: 1394624 Percussive tools LOSENHAUSEN MASCHINENBAU AG 15 June 1973 [25 July 1972] 28660/73 Heading B4C A ramming or tamping machine comprises an internal combustion diesel engine 10 mounted on the machine casing 16, 65 and driving via a crank drive disposed in the casing a spring mounted ramming tool 66. The engine 10 has an output shaft 12 carrying a fan 14 and flywheel 11 and drives via a clutch 20 an intermediate shaft 26 having a pinion 38. The pinion 38 drives a gear-wheel 40 on a crankshaft 42. A connecting rod has one end 51 mounted on a throw 48 of the crank-shaft, has a central opening 52 through which the shaft 26 freely passes, and has its lower end 54 connected to a frame 56 consisting of upper and lower members 61, 62 and parallel rods 63. The rods 63 are slidable in bearings 64 on the casing 65 and in bearings 69 on a further casing 67 carrying the tool 66. Springs 70, 71 are located between the upper wall 68 of the casing 67 and the members 61, 62 of the frame 56. Bellows 72 connect the casings 65, 67 and the casing 67 is filled with oil which is pumped by the member 62 through an aperture 73 in the wall 68 to lubricate the bearings.