baber/WOPTO huggingface dataset:
Patent GB-781223-A (GB)
Title: Coated abrasive article and method of making the same
IPC: B24D11/00
Filed: 1955-08-04
Abstract: 781,223. Abrasive articles containing wollastonite. CARBORUNDUM CO. Aug. 4, 1955 [Sept. 1, 1954], No. 22418/55. Class 60. A coated abrasive article comprises a backing having a layer of abrasive grains e.g. alumina, attached to a surface thereof by a bond comprising a composition containing an animal glue or a heat-hardened phenol-, urea-, or melamineformaldehyde resin, and wollastonite of such particle size and shape that at least about 80 per cent will pass through a 325 u.s. standard mesh and at least about 70 per cent of the particles by count are less than 4 microns in length, such composition being present in one or both the sandsizing and making coats of the bond. The coats, which may be applied in liquid form e.g. a viscous solution or suspension in water or furfural, may both contain animal glue or the resin, together with a defloculating agent, e.g. sodium hexametaphosphate. Particles of wollastonite having a length greater than 4 microns preferably have an average ratio of length to diameter of at least 3 : 1 and average diameter of 4 to 8 microns. Specification 576,308 is referred to.
Patent GB-758523-A (GB)
Title: Liquid-operated servo mechanisms
Inventor: WARNE EUGENE HAROLD
IPC: F15B9/06
Filed: 1953-08-13
Abstract: 758,523. Gas turbineplant. LUCAS (INDUSTRIES) Ltd., J. July 27, 1954 [Aug. 13, 1953], No. 22439/53. Class 110(3) [Also in Group XXIX] Apparatus for controlling the fuel supply to or otherwise regulating the operation of a jet-propulsion or gas turbine engine in response to the ratio of the blower delivery pressure to atmospheric pressure or the pressure at the blower inlet comprises a liquid operated servo-mechanism the control means of which includes a lever k actuated by two members d, q responsive to two pressure differences, one of the members d being an axially deformable elastic capsule one end of which is pivotally attached to the lever and the other end of which is movable by the servo-mechanism to vary the inclination of the axis of the capsule d relative to the lever and so vary the effective force of the capsule on the lever. Blower delivery pressure acts on the evacuated capsule d and also externally on a capsule q the interior of which is open atmospheric pressure or blower inlet pressure through a passage s. The spring-loaded servo-piston b is controlled by a vent valve j carried on the lever k. The piston rod c extends through both ends of the cylinder a, its lower end being connected to a member to be operated and its upper end being connected by a link v and pivoted arms t, u to the outer end of the evacuated capsule d, the inner end of which is pivoted to one end of the lever k. The lever k is loaded by a spring wand is pivoted between two compartments of a chambered body o. The lever is also actuated by the capsule q which has its axis at right angles to the lever. Blower delivery pressure'is effective on the. outside of both capsules through a passage r, The arrangement is such that if a change occurs in one of the pressures and hence in their ratio, the servo-piston operates on the capsule d to re-balance the forces on the lever and the position of the piston b is then indicative of the new ratio. In a modification, the vent valve j is replaced by an obturator or occulter adapted to interrupt the flow of servo-liquid to the top of the piston b, the capsule q is evacuated, and the capsule d is open to the atmosphere through a passage in the arm t and its supporting spindle.
Patent GB-392561-A (GB)
Title: Improvements in or relating to keys for securing railway rails in their supporting chairs
IPC: E01B9/58
Filed: 1931-08-08
Abstract: 392,561. Keys for securing railway rails. MILLS, Ltd., J., EXECUTORS OF, Bredbury Steel Works, Bredbury, near 'Stockport, and MACBETH, A., Broadway, The Firs, Bowdon, Altrincham, Cheshire. Aug. 8, 1931, No. 22458. [Class 104 (ii).] A spring key 5 for securing railway rails in their chairs is made by bending a steel plate to a C-shape, and its front end 7 is bevelled or chamfered to facilitate insertion between the rail and the chair. The rear end of the key may be formed with outwardly projecting lips 12, or with a continuous lip, which engage the web of the rail and prevent the key from working loose. Reference has been directed by the Comptroller to Specifications 103,594 and 336,864, [both in Class 104 (ii), Railway and tramway permanent way &c.].
Patent GB-951550-A (GB)
Title: Degassing and deoxidation of copper and copper-base alloys
Inventor: WHITE DENNIS GEORGE
IPC: C22C9/00
Filed: 1961-06-21
Abstract: Molten copper and copper base alloys, particularly gun metal and tin bronzes, are simultaneously degassed and deoxidized by adding thereto a product comprising, in admixture or juxtaposition, a carbonate and phosphorus, either as the element or as a P-containing alloy or compound.  For example, the product may comprise an apertured disc of compacted carbonate, e.g. marble chips and powder with sodium silicate binder, the aperture being wholly or partly filled with a compacted mixture of P and metal particles, e.g. brass and lead dusts, or with P-Cu.  A prior method is disclosed of melting copper base alloys under oxidizing fluxes, e.g. MnO2 with glass and fluorspar, then deoxidizing the melt with P, P compounds or P-Cu, Si, B, Ca-B, Li or Mn. Specification 319,603 is referred to.
Patent GB-1072888-A (GB)
Title: Improvements in or relating to tractors and like self-propelled vehicles
IPC: B60J5/00
Filed: 1966-05-20
Abstract: 1,072,888. Vehicle bodies. P. E. KETTLER. May 20, 1966 [June 10, 1965], No. 22531/66. Heading B7B. A tractor cab has an access door 1 pivoted at its forward or rearward edge to be movable in unison with an upwardly opening windscreen pivoted at 10 to the cab frame. The movement is preferably controlled by a flexible wire connection and the door and windscreen may be biased to either extreme position by coil springs.
Patent GB-276693-A (GB)
Title: Improvements relating to sealing caps, particularly for milk bottles
IPC: B65D51/24
Filed: 1927-08-27
Abstract: 276,693. Schulz, M. Aug. 28, 1926, [Convention date]. Capsules and like closures. -Milk bottles &c. are closed by a cap of damp-proof paper or other material secured by a crown ring b provided with an inwardly extending detaching strip c by means of which the ring can be torn off the bottle by hand.
Patent GB-232112-A (GB)
Title: Improvements in and relating to the drying of compressed air
IPC: F04B39/16
Filed: 1924-09-24
Abstract: 232,112. Heenan, J. N. D. Sept. 24, 1924. Drying air.-Air from a compressor, 1 is cooled in a heat-interehanger 6 by the cold, expanded air from the cylinder 8 of an air engine, and the moisture thus put into suspension is removed in a drier 7, which may be of the type described in Specification 203,946, [Class 123 (iii), Steam separators &c.]. The dried air is then warmed in a second heat-interchanger 4 by the undried air coming from the compressor 1. Fig. 2 shows a heat-interchanger comprising a nest of tubes 15 expanded in plates 11, 12 in a casing 10. Dished end members 13, 14 provide outlets If;, 17 for one medium, the other medium entering at 18 and leaving at 19. Baffles 20, 21 may be provided, and the tubes 15 may be provided with enlarged radiating surfaces.
Patent GB-1005110-A (GB)
Title: Improvements relating to crystal valves
Inventor: SCOTT WILLIAM JOSEPH
IPC: H01L29/00
Filed: 1963-06-06
Abstract: <FORM:1005110/C1/1> In the casing of a semi-conductor device, a hermetic seal is obtained between coaxial metallic conductors 1, 2 and an intervening ceramic or vitreous insulator 3.  In a particular example of the arrangement shown in Fig. 2, the annular borosilicate glass insulator is sealed between the metal sleeve 2 which consists of an alloy of 42% Ni and 58% Fe and the inner conductor 1 which consists of an alloy of 29% Ni, 17% Co, and 54% Fe.  It is stated that the glass insulator will be held under compression throughout the operating temperature range of the device.  For increased strength in the seals, that part of the sleeve conductor 2 which surrounds the insulator may be thickened, and that end portion of the inner conductor 1 which is embedded in the insulator may have a greater diameter than the other end, there being a tapered portion extending between the ends.
Patent GB-801310-A (GB)
Title: Improvements in or relating to the production of ingots
IPC: G01G19/00
Filed: 1956-07-20
Abstract: 801,310. Casting processes. SOC. D'ELECTRO-CHIMIE, D'ELECTRO-METALLURGIE ET DES ACIERIES ELECTRIQUES D'UGINES. July 20, 1956 [July 23, 1955], No. 22617/56. Class 38 (1). [Also in Group XVIII] In a method of casting steel up to a predetermined height in an ingot mould containing liquid slag, the electrical conductivity of the liquid in the mould at said level is observed, and when it increases, the pouring rate is adjusted, if necessary, to a rate which permits separation of the slag and steel, and pouring is continued at this rate. When metal is cast into a mould containing liquid slag, a slag-metal emulsion is formed which separates into a lower layer of liquid metal and an upper layer of liquid slag. When the mould is initially filled with liquid slag the conductivity observed is that of the slag. As metal is poured there comes a point when the conductivity observed is that of a slag-metal emulsion and a sudden and variable increase is noted. If at this point pouring is stopped or slowed down to permit separation of the emulsion, the conductivity will vary within a wide range depending on the degree of separation. As pouring is continued at a slow rate, the conductivity increases until it suddenly reaches a value corresponding to that of the liquid metal, when the boundary between the slag and the metal reaches the level of the measuring device. Electrodes E1, E2 mounted in the mould head at the required level and connected through the resistance r of the liquid in the head, are connected in a circuit which includes a voltmeter V measuring the P.D. between the electrodes. The voltmeter is also connected to an oscillator circuit feeding a loud-speaker through an amplifier D, whereby audible signals are produced varying in accordance with variations in the potential between the electrodes, the signals for slag, slag-metal emulsion and metal being of different pitch. Specifications 789,657 and 801,309 are referred to.
Patent GB-1505460-A (GB)
Title: Organo-lithium compounds their preparation and use
IPC: C08F4/48
Filed: 1976-06-02
Abstract: 1505460 Organolithium polymerization initiators SOC CHIMIQUE DES CHARBONNAGES-CdF CHIME and AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE 2 June 1973 [6 June 1975] 22663/76 Heading C2J [Also in Division C3] Compounds of the general formula where R is C 1-5  alkyl, R<SP>1</SP> is -H or C 1-5  alkyl and n is an integer of at least 2, are prepared by reacting a compound of formula with R-Li in a non-polar solvent (such as petroleum ether, hexane, heptane, cyclohexane, benzene or toluene) and under an inert atmosphere or in vacuo, the molar ratio of R-Li to the compound of Formula II being at least 2 : 1. In examples, compounds of Formula I in which R is tert.-butyl, R<SP>1</SP> is -H and n is 2, 4 or 8 are prepared. The compounds are useful as initiators in diene polymerization.
Patent GB-380567-A (GB)
Title: Improvements in or relating to milling and like cutting tools
IPC: B23C5/24
Filed: 1931-08-11
Abstract: 380,567. Milling, boring, or like tools. MILLER, R., 51, Ingestre Road, Hall Green, Birmingham, and PENN, E., Dartmouth Towers, Dartmouth Park Hill, London. Aug. 11, 1931, No. 22667. [Class 83 (iii).] In a milling, boring, reaming, or like cutter of the type having a number of inserted wedgeshaped cutters e each secured in position in the cutter body a by a locking- wedge k, the locking-wedge is held against both lateral and radial movement by engagement with one side of the recess b in the cutter body. The recesses b, preferably non-radial, are of uniform width and have an inclined lower face c. The cutting-elements e, which may have two cutting-edges f, g, are of uniform width along the inclined lower edge hand taper outwardly in the direction of serrations i lying at right angles to the edge h. The locking- wedge is of similar form to the cutter and has a projecting rib l of arcuate form which is adapted to fit in a corresponding groove in one side of the recess b. One side of the rib is tangential to the lower inclined edge of the wedge which rests on the corresponding face c of the recess and is thus firmly held against radial or lateral movement. The front of the wedge has serrations similar to those on the cutting element. After positioning the wedge the cutter is driven into position and either axial or radial adjustments of the cutters may be effected by engaging the cutter serrations with appropriate serrations on the wedge. When both axial and radial adjustment is required a shim is inserted behind the wedge plate. The cutters may project by different amounts from the recesses. The cutters and wedge plate may have a 4 taper and to facilitate the removal of the cutters a tool may be inserted through a suitable aperture q. Instead of the rib l one or more pegs may be used to secure the wedge plate in position. In some cases the serrations may be arranged parallel to either the face or side cutting edges and the faces c may be disposed parallel to the peripheral cutting edges.
Patent GB-388317-A (GB)
Title: Improvements in and connected with steam generators
IPC: F22B7/12
Filed: 1932-08-12
Abstract: 388,317. Composite steam-boilers. SPENCER-BONECOURT, Ltd. and GREGSON, W., 32, Farringdon Street, London. Aug. 12, 1932, No. 22672. [Class 123 (ii).] A boiler comprises a lower drum A with a furnace flue C provided with a baffle D for accelerating the flow and ensuring the mixing of the furnace gases and air; and an upper drum B having long small diameter flue tubes through which the gases from the lower drum are drawn at a high velocity by a fan F as described in Specification 140,851**, [Class 123 (ii), Steam generators]. The steam and water spaces of the drums are connected by internal pipes G2, G1. The position of the circular baffle D is adjusted according to the boiler load.
Patent GB-1286935-A (GB)
Title: Turbomachine hollow aerofoil blade liners
Inventor: GIESMAN RICHARD C
IPC: F01D5/18
Filed: 1971-04-19
Abstract: 1286935 Making turbine blades GENERAL MOTORS CORP 19 April 1971 [2 June 1970] 22701/71 Heading B3A [Also in Division F1] An aerofoil shaped liner 22 for a turbine blade 2 comprises metal side walls 26, 27 secured directly together at their trailing edges (28, Fig. 3, not shown) but spaced apart at their leading edges by two sheet-metal strips 30 which include cooling air nozzles 31 defined by registering grooves 32 photochemically etched or electrically machined in the abutting faces of the strips. The latter are secured together and to walls 26, 27 by diffusion bonding, electron beam or other welding, or brazing. Liner 22 is retained in position within blade 2 by hooks 35 bearing against blade foot 15, a reinforcing layer 36 being provided. A base 4 comprising platform 6, stalk 7 and root 8 is cast around foot 15.
Patent GB-1066219-A (GB)
Title: Process for extraction of hydrogen halides from mixtures containing same
IPC: C07C17/12
Filed: 1963-11-14
Abstract: 1,066,219. Extracting hydrogen halides from gaseous mixtures. PULLMAN Inc. Nov.14, 1963 [May 2, 1963], No. 22702/66. Divided out of 1, 066, 218. Heading B1L. Hydrogen halide is extracted from a mixture containing hydrogen halide and a hydro-carbon, e. g. the gaseous effluent from a hydrogen halogenation reactor 2, by countercurrently contacting in an extraction zone 42 the mixture with a solution of hydrogen halide of a concentration of between 15% and 40% by weight hydrogen halide, passing the hydrogen halide enriched solution through line 44 to a flashing zone 46 to vaporize and separate the absorbed hydrogen halide, and recycling the remaining solution to the extraction zone. Between the reactor 2 and the extraction zone the gases are cooled by at least 100‹C. in a heat exchanger 16, the cooled effluent being then fed to a distillation tower 24 where all the higher boiling materials condense and are drawn off through line to a further distillation column 34. The uncondensed hydrogen halide mixture is withdrawn from the top of tower 24, is heated in a steam-fed heater 41, and then is passed to the extraction zone. The unabsorbed gas from zone 42 after passing through heat exchanger 16 is recycled to the reactor. The extraction process is particularly applicable to the treating of the effluent of the halogenation process disclosed in Specification 1,066,218.
Patent GB-1453921-A (GB)
Title: Therapeutic compositions containing acetoxime derivatives
IPC: C07C239/00
Filed: 1975-05-23
Abstract: 1453921 Psychotropic compositions LABAZ 23 May 1975 [25 June 1974] 22744/75 Heading A5B [Also in Division C2] Pharmaceutical and veterinary compositions having tranquillizing, antidepressant, myorelaxant, anticonvulsant, anxiolytic and sedative activity comprise as an essential active ingredient at least one acetoxine derivative represented by the general formula wherein R 1 , R 2  and R 3 , which may be the same or different, each represent a branched- or straight-chain C 1-4  alkyl group or R 1  and R 2 , when taken together, represent with the carbon atom to which they are attached a cyclohexyl radical, in association with a pharmaceutical carrier or excipient therefor. The compositions may be administered orally, parenterally or rectally in the form of tablets, capsules, suspensions, syrups, suppositories and solutions.
Patent GB-1306723-A (GB)
Title: Tetrahydropyran-2-ols
IPC: C07D317/46
Filed: 1970-05-12
Abstract: 1306723 6 - Substituted - tetrahydropyran- 2-ols F HOFFMANN-LA ROCHE & CO AG 12 May 1970 [21 May 1969] 22809/70 Heading C2C Novel compounds of the tautomeric Formulµ (1a) and (1b), where B represents a mono- or bicyclic arylene radical optionally substituted by one or more C 1-7  alkyl or alkoxy groups and R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP>, R<SP>4</SP> and R<SP>5</SP> represent hydrogen atoms or C 1-7  alkyl groups and the oxygen atoms are attached to ortho positions on the radical B, are made by reacting a dialdehyde (II) with a Grignard reagent III, when X represents a halogen atom. 4,4 - (Phenylenedioxy) - 1 - - chloropentane; 4,4 - (2,3 - naphthylenedioxy) - 1 - chloropentane and 4,4 1  - (4,5 - dimethylphenylenedioxy)- 1- chloropentaneare made by reacting 5-chloro-2- pentanone with catechol, 2,3-naphthylene diol, and 4,5-dimethylcatechol respectively. The compounds of the invention are intermediates for the preparation of steroids.
Patent GB-545149-A (GB)
Title: Process for recovering alumina
IPC: C01F7/164
Filed: 1938-08-02
Abstract: 545,149. Reducing iron ores. SEAILLES, J. C., and DYCKERHAFF, W. R. G. Aug. 2, 1938, No. 22862. Convention date, Aug. 2, 1937. [Class 72] [Also in Groups III and V] In the preparation of calcium aluminate (for use in making aluminium oxide), by roasting aluminiferous raw materials with lime or calcium carbonate raw materials are employed which contain a considerable proportion of silicon compounds, e.g. clay, shale metallurgical slags, ash, coal bearing rock &c. the amount of lime or calcium carbonate employed being not less. than is necessary to render the calcium aluminate produced soluble. On treating the roasted product with water, residue containing silica and compounds of iron, titanium and aluminium, magnesium &c., remain undissolved and may be used for making cement. Gypsum may be added to assist the lixiviation. The solution is treated by known methods to produce aluminium oxide. When iron is contained in quantity in the raw material it may be reduced to lower stages of oxidation or even to metallic iron which may be removed from the product. Specification 423,594, [Group III], is referred to.
Patent GB-461272-A (GB)
Title: Improvements in or relating to resin-fibre compositions
IPC: C08J3/21
Filed: 1935-08-14
Abstract: A process for making moulded articles comprises mixing a fluid resinous material with dry fibre, mixing the product with an aqueous suspension of fibre, and removing water from the resulting mix. Sheets may be so made on a paper-making machine.  The resin may be of the heat-hardenable phenol-aldehyde type or a plasticized phenolic resin, as an aqueous emulsion or a syrup. The fibre may be wood flour, cotton flock or alpha flock.  Mineral fillers and bentonite may be added to the mix.  In examples are used (1) a soft resin obtained by refluxing together cresol, resin, tung oil and hexamethylene-tetramine, or (2) a syrup made by refluxing cresol, limed rosin, formaldehyde and ammonia to which is added 1 part of lime.  Specification 386,991 is referred to.
Patent GB-343000-A (GB)
Title: Improvements in electrical reciprocating apparatus
IPC: F02M59/02
Filed: 1929-07-25
Abstract: 343,000. Electrically-operated pumps &c. MORRIS, J. N., 5, Redcliffe Square, London, and SCOTT, M. D., Denholme, Windmill Hill, Enfield, Middlesex. July 25, 1929, No. 22928. [Class 102 (i).] In electrically-operated reciprocating apparatus, such as a pump or hammer, in which the reciprocating part is carried by the core of a solenoid connected to contacts which are made and broken by the movement of the core, the contacts 7 are operated by a pivoted armature 5 alternately attracted by the magnets 1, 2 in accordance with the position of the magnetic body 3 which is carried by the reciprocating part and alternately short circuits the fields of the magnets. In the form shown in Fig. 3, there are two air gaps in a magnetic circuit, which are alternately bridged by the body 3. In the form shown in Fig. 7, the body 3 is a magnet which varies the magnetic flux in two magnetic bodies 13, 14, and so operates the armature. The body 3 may consist of two connected discs 3, 31 (Fig. 9) moving in a non-magnetic tube inside the magnets 1, 2. These discs may be relatively adjustable for the purpose of varying the stroke of the pump &c. In the pump shown in Fig. 9, the plunger 15 is the core of a solenoid 22, and is connected to the body 3 by a flexible metallic tube 36. During the up-stroke, the liquid passes from a reservoir 24 through a valve 28 into the barrel 16, and during the down stroke it passes through a valve 29 and ports 30 in the plunger and through ports 31 in the barrel into a chamber 20. As liquid accumulates in the chamber 20, it lifts a float 33, which in its highest position lifts a disc 38 fixed to the plunger rod, thereby preventing movement of the plunger and body 3 until the level of liquid has fallen. The float may be rigidly attached to the plunger rod, or it may lift the body 3 only, the plunger 15 being free to return by gravity to its lowest position. In another form, a float lifts an iron ring, or a magnet into contact with the magnets 1, 2, thus preventing the magnet from acting on the armature 5. In another form, a cam surface on the float moves balls into a recess in the plunger rod, and thus prevents it from moving. In another form, a pressure member, such as a diaphragm, breaks or prevents the making of the solenoid circuit when the delivery of the pump is excessive. The magnetic switch gear may be used for regulating the level of liquid in a reservoir.