baber/WOPTO huggingface dataset:
Patent GB-1283021-A (GB)
Title: Film dryer
Inventor: NODEN DEREK
IPC: F26B17/28
Filed: 1970-01-13
Abstract: 1283021 Evaporators; rotary drum type APV MITCHELL (DRYERS) Ltd 11 Nov 1970 [13 Jan 1970] 1580/70 Heading B1B Liquid is evaporated from a solution or suspension of solid material by spreading a film of the solution or suspension on the exterior of a horizontal rotating drum 21 the interior of which is supplied with hot combustion gases from a burner 40 projecting axially into a hollow trunnion 25 at one end of the drum. The dried material is removed from the drum by a doctor blade (not shown). Gas or oil is supplied to the burner through pipe 48; and combustion air is supplied through pipe 45. The hot gases from the burner-flame flow through cylindrical baffle 30, pass outwardly towards the inner curved surface of the drum, flow through the annular space between the drum and the outer surface of baffle 30, and pass through the annular passage between the trunnion 25 and nozzle 41 to flue 38. The temperature of the flame can be controlled by supplying dilution air through pipe 44 to nozzle 41; and the baffle 30 can be adjusted axially to enable a nearly constant temperature to be achieved all along the cylindrical body of the drum. The feed solution or suspension may be applied to the drum by a dip trough, a transfer roller or a spray device. The doctor blade may comprise four side-by-side blade sections each pivotally supported by a beam. The drum may be used for drying milk, potato slurry, dyestuffs, and ceramic slips.
Patent GB-174352-A (GB)
Title: Improved manufacture of material suitable for roofing, wall coverings, and other purposes
IPC: D21J1/16
Filed: 1922-01-18
Abstract: 174,352. Barrett, Co., (Assignees of Perry, R. P.). Jan. 19, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Fibrous plastic compositions.-A waterproof material for roofing, wall coverings, &c. is made by forming a sheet containing mixed asbestos fibres and comminuted waterproofing- material such as pitch, ashphalt, &c., superposing a number of the sheets, and subjecting them to pressure and heat so that the waterproofing- material becomes fused and the sheets are densified and felted together. The material may be made in a felt or paper making machine. As shown, a watery pulp containing asbestos fibres and a larger amount of comminuted waterproofing-material in the form of filaments is placed in a paper-making machine P and is fed from a cylinder C by a wet blanket 1 to a suction-box 3 and between pressure-rolls 4. It is then wound on a mandrel 6. When a sufficient number of layers have been wound, the cylinder 5 of material is cut longitudinally to form a flat sheet which is then pressed and heated in an hydraulic press to express the water, to compact and felt the layers together and to fuse the waterproofing material. The laminated sheet of material mav be formed by folding the sheet material as it leaves the paper-making machine instead of winding it on a mandrel. In some cases the individual sheets are dried before being superposed and subjected to pressure and heat; in other cases, the sheets are rolled or folded while still moist to assist in the matting and felting of the fibres.
Patent GB-1527472-A (GB)
Title: Production of 3,3-dimethyl-2-oxo-butyric acid and its salts
IPC: C07C51/00
Filed: 1977-01-17
Abstract: 1527472 3,3 - Dimethyl - 2 - oxo - butyric acid and salts thereof BAYER AG 17 Jan 1977 [20 Jan 1976] 01688/77 Heading C2C A salt of 3,3-dimethyl-2-oxo-butyric acid is prepared by contacting a solution containing a salt of 3,3-dimethyl-2-hydroxy-butyric acid in at least 95% purity at a pH of 9-12 with approximately the stoichiometric amount of a permanganate, and separating the solid MnO 2  which is formed from the substantially pure dissolved salt of 3,3-dimethyl-2-oxo-butyric acid.
Patent GB-178197-A (GB)
Title: Improvements in or relating to wheels for vehicles
IPC: B60B9/22
Filed: 1921-01-11
Abstract: 178,197. Jones, E., Gair, J., and Williams, W. S. Jan. 11, 1921. Spring wheels.-An outer metal ring k carrying a rubber tread l is fitted over a series of air-tubes o which are housed in pockets j formed by the rim flanges e and partitionplates d secured, to the rim-base c'. The ring k is also fitted with partition-plates m to register with, but normally separated from, the plates d. The flanges e, which may be continuous or in segments are formed with lugs f to take the transverse holding - bolts. Specification 168,683 is referred to.
Patent GB-589675-A (GB)
Title: Improvements in tractor seats
IPC: B60N2/38
Filed: 1945-01-23
Abstract: 589,675. Tractor seats. SCOTT, J. Jan. 23, 1945, No. 1794. [Class 136 (iii)] [Also in Group XXXII] A tractor seat E i supported in the middle and provided with a Laterally arrangec hinge A one end o which is attached to the seat and the other to a support C so that the seat may be lifted to one side, to provide access to the tractor and also to keep the seat dry.
Patent GB-1019360-A (GB)
Title: A rocket fluid discharge nozzle
IPC: F02K9/97
Filed: 1963-01-15
Abstract: A material for use in a rocket nozzle comprises a matrix of tungsten powder with molybdenum fibres running through the matrix and bonded thereto.  The tungsten may comprise 95-75% by weight of the composite and the molybdenum fibres may have a diameter between 5 and 25 mil with the length varying from 1/16 to 3/8 of an inch.  The fibres are preferably randomly oriented but uniformly distributed through the matrix.  The density of the composite material is between 70% and 100% of its theoretical density.  The composite material may be overlaid with a 90-100% dense tungsten layer of a thickness of 0.005-0.070 inch.
Patent GB-455703-A (GB)
Title: Process for the production of indifferently reacting phosphatic fertilisers
IPC: C05B21/00
Filed: 1935-01-21
Abstract: A fertilizer is produced by mixing acid decomposition products of a crude phosphate e.g. superphosphate, mono-calcium phosphate or double superphosphate, with alkaline calcined phosphates or phosphate slags, e.g., Rhenania phosphate, Thomas slag or Wolter phosphate, in such proportions that the mixture neither liberates ammonia from ammonium salts nor volatile acids from their salts. Other fertilizer salts may be admixed with the mixtures thus obtained.  Examples of such salts are ammonium or potassium chlorides or nitrates, or crude potassium salts.
Patent GB-1256171-A (GB)
Title: Fluid catalyst and preparation thereof
IPC: B01J29/08
Filed: 1969-01-13
Abstract: 1,256,171. Zeolite in day matrix. ENGELHARD MINERALS & CHEMICALS CORP. 13 Jan., 1969 [17 Jan., 1968], No. 1984/69. Heading B1E. [Also in Division C1] A heat-activated catalytic mixture comprises a synthetic crystalline faujasite in a clay matrix, the mixture being in the form of microspheres of high attrition resistance and analysing Na 2 O in an amount 0.1' to 3% by weight and having a silica/alumina ratio of 1.1 to 1.3 to 1. The mixture is formed directly from clays by (a) forming a slurry of water, a finely divided source of silica and alumina, raw (hydrated) kaolin clay, and a water dispersible hydrophilic colloid binder; (b) spraying into hot air to form microspheres; (c) immersing and agitating in a mixture of an aqueous solution of sodium hydroxide and an inert water immiscible hydrocarbon liquid until substantially. all the sodium hydroxide is impregnated onto the microspheres; (d) aging and crystallising by hydrothermal treatment without dehydration, preferably in the presence of the immiscible liquid of step (c); and (e) activating, e.g. by steaming at 1000-1600F optionally preceded by calcination at 1400- 1600F. Specified reactants are (i) as sources of alumina and silica-meta kaolin and calcined kaolin clay silica gel or kieselguhr; (ii) as the hydrophilic binder-sodium silicate, polymeric gums, latexes, starches and polycarboxylic polymers; and (iii) as the immiscible liquidmineral oil or lubricating oil. The sodium zeolite particles produced may be cation exchanged before activation with NH 4 , Ba, Ca, Mg, Ma, V, Cr, Co, Ni, Fe, Zn, Al, rare earths, hydrogen and noble metals, e.g. Pt and Pd.
Patent GB-120827-A (GB)
Title: Improvements in Machines for Grinding and Polishing Lenses and so forth.
Inventor: TANNER WILLIAM SELBY
IPC: B24B13/00
Filed: 1918-02-04
Abstract: 120,827. Tanner, W. S. Feb. 4, 1918. Lenses, grinding and polishing.-In a machine for grinding and polishing lenses &c., a number of grinding-heads are carried on a table m that is mounted to turn about a central rotating shaft b, from which is taken the drive both of the spindle o of the girder, or lower tool, and that of the frames 9 carrying the work-holders, or upper tools, the arrangement being such that while the table normally is held stationary it can be released and stepped round to bring the grinding-heads in succession in front of the operator. Each grinding-spindle is driven from the central shaft by friction wheels r, k, h, of which the wheel k is mounted at the end of a hand-lever s pivoted at u so that it may be swung upwards or downwards to engage with parts of different radii on the wheels r, h and thus to vary the speed transmitted. At the lower end of the wheel h is a plain loose ring i; when the wheel k is brought into engagement with this ring, the drive ceases. The spindle of the wheel k works in a slot in the bent end of the lever s and is drawn towards one end of the slot bv a spring which pulls the wheel k into contact with the wheels r, h. Instead of the conoidal wheels shown, flat friction disks may be mounted on the shaft and on the spindle; the intermediate wheel then stands vertically and is moved towards and from the centre of the shaft by a yoke actuated bv a screw, and the disk on the spindle is pressed down by a spring, the drive being stopped when desired by lifting the disk by means of a cam on a spindle provided with a handle. The frames 9 for the upper tools are mounted on arms 6, which are connected by blade springs 7 to a boss 5 that is set in motion by an adjustable-throw crank-pin in the disk y at the top of the central shaft. The frames may be turned up on the rods to allow of access to the tools. The outer ends of the arms are supported by vertical blade springs 8; or they may work through eyes in swivelling posts.
Patent GB-1333164-A (GB)
Title: Linearity correction circuit
IPC: H03K4/90
Filed: 1971-01-15
Abstract: 1333164 Correcting sawtooth waveforms RCA CORPORATION 15 Jan 1971 [27 Jan 1970] 2095/71 Heading H3T The sawtooth current in a deflection yoke is linearized by connecting a first inductor and a saturable inductor in parallel and in series with the yoke, the inductors being conductive for non-coincidence periods. The Figure shows a sawtooth current generator in which, during the first part of the stroke, the energy in the deflection coils 31 is discharged via a diode 30 and a large capacitor 49. The resistance voltage drop adds to the changing voltage 'across the capacitor and linearity correction is not necessary. At some point during the stroke a thyristor 29 is fired. The yoke current reverses and passes through a diode 43 and a saturable inductor, the impedance so changing with yoke current as to effect linearity correction. In Figs. 2 and 3 inductor 41 is connected to a tap on the saturable inductor and the diode is connected in reverse sense in series with the non-saturating inductor. Thyristor 21 is for commutating thyristor 29 Transformer 50 supplies the E.H.T. circuit.
Patent GB-764232-A (GB)
Title: Quaternary ammonium salts of pyridindole derivatives
IPC: C07D471/04
Filed: 1955-01-24
Abstract: The invention comprises compounds having the formula <FORM:0764232/IV(b)/1> wherein n is an integer from 2 to 12 inclusive, R and R1 are lower alkyl radicals which may be the same, different or are joined together to form with the nitrogen atom a saturated or unsaturated heterocyclic ring, R11 is a lower alkyl or aralkyl radical and wherein the unsatisfied valency is attached to the pyridine nitrogen of a pyridindole compound such as 9-pyrid-2,3b-indole, 9 - pyrid - 3,4b - indole, 9 - pyrid - 1,2,3,4 - tetrahydro-3,4b-indole or a lower alkyl-substituted derivative of these heterocyclic bases and wherein A and A1 are anions, at least one of which is halogen and wherein the term lower alkyl denotes a hydrocarbon radical containing 1 to 8 carbon atoms inclusive.  Such compounds are obtained by reacting a haloalkyl quaternary ammonium halide of the general formula <FORM:0764232/IV(b)/2> wherein X is chlorine, bromine or iodine with a pyridindole compound having a quaternizable nitrogen.  In examples: (1) harman and 3-bromopropyldiethylmethyl ammonium bromide are refluxed in acetonitrile to give 1-(1-methyl-9-pyrid - 3,4b - indolinium) - 3 - (diethylmethyl - ammonium) propane dibromide; (2) Py - N - methyltetrahydroharman and 3-bromopropyltrimethylammonium bromide are reacted to form 1 - (1,2 - dimethyl - 1,2,3,4 - tetrahydro - 9 - pyrid - 3,4b - indolinium) - 3 - (trimethylammonium) propane dibromide; (3) a -carboline and 3 - bromopropyl - trimethylammonium bromide are reacted to give 1-(9-pyrid-2,3b-indolinium)-3 - (trimethylammonium) - propane dibromide.  Similarly prepared are various propane, pentane and hexane derivatives of the above formula in which the group attached to the free radical is 1 - methyl - 9 - pyrid - 3,4b - indolinium and -NRR1R11 represents trimethyl- or triethyammonium groups, N-methyl-pyrrolidinium, N-methylpiperidinium, or benzyldimethylammonium, and also 1-(1,9-dimethyl-9-pyrid-3,4b-indolinium) - 3 - trimethylammonium) propane dibromide and 1 - (9 - pyrid - 3,4b - indolinium)-3-trimethylammonium) propane dibromide.
Patent GB-495243-A (GB)
Title: Improvements in or relating to electrical conductors having insulating coverings
IPC: H01B13/12
Filed: 1938-01-24
Abstract: 495,243. Insulating conductors. SIMONS, P. Jan. 24, 1938. No. 2219. [Class 36] [Also in Group XXV] An electrical conductor is insulated by several layers of asbestos &c., the fibres of which lie obliquely to the axis of the conductor, the obliquity increasing from layer to layer. The wire 1 is covered with the fibrous web 2 in a single operation by drawing the wire 1 with the web attached to it at one edge through a spinning funnel 3. By using a long funnel, rotating at a high speed, the layers of fibres are laid obliquely to the wire with the outer fibres more oblique than the inner fibres. The innermost fibres lie substantially parallel to the wire. A paper band may be used as carrier for the web 2. The funnel may be ribbed or roughened internally and may be trumpet-shaped.
Patent GB-112839-A (GB)
Title: Improvements relating to Screw-threaded Metal Parts whereby their Screwing and Locking together is Facilitated.
IPC: F16B39/04
Filed: 1917-02-15
Abstract: 112,839. Rudge-Whitworth, Ltd., and Pugh, J. V. Feb. 15, 1917. Locking nuts.-A screwthreaded connexion for holding parts in definite relation to one another, and shown applied to a projectile comprises an inner member or fuse a having two spaced holes c, d which receive depressions in the cap band shell metal. The cap b is first secured in a definite position with regard to the hole d, the depression e is then made, and the fuse is screwed into the nose of the shell by means of a pin spanner engaging the depression e until the cap engages the shell. The fuse body is locked by forming a depression in the shell metal to engage the hole d.
Patent GB-790810-A (GB)
Title: Improvements in or relating to clocks
IPC: G04B45/00
Filed: 1956-01-24
Abstract: 790,810. Clocks. SCHLENKER, A. SCHMID-, and SCHLENKER, W. SCHMID-, [trading as SCHMIDSCHLENKER. W. & A.I. Jan. 24, 1956 [Jan. 25, 1955], No. 2247/56. Class 139 A clock 1, Fig. 1, is supported by columns 2, 2<SP>1</SP> extending from a base 3. The escape wheel arbor 6 carries a pinion 7, Fig. 3, which meshes with a gear 8 free on a shaft 4 but coupled thereto by a spiral spring 10. The shaft 4 which carries figurative or ornamental decoration 5, Fig. 1, is thus rotated continuously.
Patent GB-636125-A (GB)
Title: Improvements in or relating to discharge tubes for use in tuning-indicators
IPC: H01J17/56
Filed: 1947-01-24
Abstract: 636,125. Discharge lamps. PHILIPS LAMPS, Ltd. Jan. 24, 1947, No. 2270. Convention date, July 26, 1944. [Class 39 (i)] [Also in Group XL (c)] A tuning indicator for a radio receiver (see Group XL (c)), includes a gas-filled discharge tube which, as shown, comprises a cylindrical control electrode 53 having an aperture 59 in a flattened part of the circumference, an annular anode 55 coaxial with the aperture in the control electrode, and a cathode 51 in the form of a loop lying within the control electrode, surrounding the aperture 59 and arranged so as to be invisible from outside. The tube may be neon-filled and the complete assembly is closely surrounded by a glass envelope 57, the ignition being concentrated in the aperture 59 and visible through the annular anode which has an inner diameter larger than that of the aperture 59. The anode supply lead is located at the opposite end to those for the control electrode and cathode and is provided with an insulating envelope. Fig. 2 (not shown) shows a tuning scale in which the tube is secured to the movable index.
Patent GB-845539-A (GB)
Title: Improvements in or relating to hydraulic control units
Inventor: AYRES SIDNEY DENNIS
IPC: B23Q5/26
Filed: 1957-01-22
Abstract: 845,539. Dashpots. BRITISH TELECOMMUNICATIONS RESEARCH Ltd. Jan. 13, 1958 [Jan. 22, 1957], No. 2318/57. Class 108(3). In a hydraulic dashpot discs 6, 12, are connected to a plug 3 and a collar 2 respectively by metal bellows 5, 11. When a hollow rod 7 is moved to the left liquid is forced from the right hand side of collar 2 through a restricted orifice opposite the conical end 15 of an orifice adjusting screw 14, into the hollow rod 7 and out through an orifice 10 into the space between the bellows 5 and the rod 7. Movement of the rod 7 to the right is undamped. Liquid pressure lifts a valve 16 off its seat to uncover ports 4 in the plug 3. A stop 18 limits movement of the rod 7. In a second embodiment rod 7 is in two parts one of which screws into the other. When assembled the two portions define an annular groove in which is located a sealing ring which seals against the inside of the plug 3 which has circular holes instead of grooves 4.
Patent GB-691222-A (GB)
Title: Process for purifying molten ferrous metal
IPC: C21C7/00
Filed: 1951-01-30
Abstract: Molten ferrous metals are purified by bringing the metal into contact with a fluid slag produced by the ignition of an exothermic reaction mixture comprising calcium oxide, iron oxide, and elemental aluminium.  The calcium oxide and iron oxide may be in the form of calciumferrite.  The amount of calcium oxide may be not less than one mole for each mole of iron oxide and may also be such that there is not less than one mole for each mole of alumina in the slag formed. The materials of the mixture may be finely divided and intimately mixed.  The mixture may be ignited and the metal added to the slag produced or the metal may be poured on to the dry mixture in a ladle. All the mixture, amounting to 0.6-8.0 per cent of the weight of metal, may be added at the beginning of pouring or may be added in small quantities during pouring.
Patent GB-659419-A (GB)
Title: Improvements in or relating to overflow devices for sinks, wash basins and the like
IPC: E03C1/22
Filed: 1949-01-28
Abstract: 659,419. Overflow devices for sinks. WALLIS & CO. (LONG EATON), Ltd., and CROWE, N. J. Jan. 28, 1949, No. 2356. [Class 26] A detachably fixed overflow device comprises a substantially L-shaped member 1 which is dished to form a passageway from t h e overflow hole to the waste pipe and has a hole for the waste pipe. The member 1 is formed with an out-turned flange 2 having a groove 6 to receive putty. The device is sealed around the waste pipe by a lead washer 15 and held in position by the putty and by bolt 5.
Patent GB-148587-A (GB)
Title: Improvements in or relating to medicinal oil preparations in dry form
IPC: A61K35/02
Filed: 1919-01-30
Abstract: Solidified oils in dry powdered form are produced by emulsifying liquid paraffin or other oils with a concentrated solution of a proteid such as casein, raw egg, egg white, egg yoke or re-dissolved dried egg, homogenizing under pressure, drying under vacuum, and pulverizing the product.  Preferably a solution containing from 20 to 33 per cent of casein in water containing sodium bicarbonate is employed, and dry products containing from 50 to 66 per cent of oil are produced.
Patent GB-548049-A (GB)
Title: Improvements in or relating to heating apparatus primarily for vehicles
IPC: B60H1/00
Filed: 1941-02-21
Abstract: 548,049. Heating air. SMITH & SONS (MOTOR ACCESSORIES), Ltd., S., MOSS, E. B., and RUSSELL, V. J. S. Feb. 21, 1941, No. 2408. [Class 137] An air heater for vehicles and other enclosed spaces comprises a radial flow fan having two sets of radial blades, 12, 13 in volute chambers 21, 22 on opposite sides of an annular plate 17. The blades 12, which are wider than the blades 13, draw air axially partly through a heater 33 surrounding the fan motor and partly through a cold air inlet 24. The air is discharged through a tangential outlet 23. The relative quantities of hot and cold air drawn in are controlled by an axially adjustable disc 29 between the air inlets. The blades 13 discharge hot air from the volute chamber 22 through a tangential outlet 39 leading to a de-frosting device on the windscreen of the vehicle.
Patent GB-1092540-A (GB)
Title: Combustion apparatus for gas turbine engines
Inventor: HOLLIDAY LESLIE
IPC: F23R3/02
Filed: 1963-10-29
Abstract: 1,092,540. Gas turbine combustion chambers. JOSEPH LUCAS (INDUSTRIES) Ltd. Jan. 20, 1965 [Oct. 29, 1963], No.2449/65. Heading F1L. A gas turbine engine combustion apparatus comprises a series of angularly spaced flame tubes 14 mounted within an annular air casing formed by inner and outer annular walls 10, 11. Radial vanes 34, Fig. 2, inter-connect walls 10, 11 intermediate adjacent flame tubes. The upstream end of each flame tube is defined by a flare 18, Fig. 1, having a central hole accommodating swirler vanes 19 and a liquid fuel burner 20. Surrounding each flare is a snout 21 welded at its downstream end to the flame tube and having an arcuate inlet at its upstream end including air-flow directing vanes 25, 26. Further air-flow directing vanes 28 are secured to the snout on either side of the arcuate inlet. Each vane 28 comprises a radial wall 29 having converging inner and outer flanges 30, 31. A further flange 32 is formed by a part 33. The vane 28 is thus generally triangular and defines two passages for air entering the gap between the flame tube 14 and the radial vanes 34, the passages respectively directing air radially inwards and radially outwards in relation to the apparatus.