baber/WOPTO huggingface dataset:
Patent GB-447822-A (GB)
Title: Improvements in and relating to the manufacture of bodies containing metallic carbide
IPC: C04B35/56
Filed: 1935-11-16
Abstract: A process for the manufacture of bodies containing carbides of metals of the sixth group, particularly tungsten carbide, for use, for example, for tipping tools, comprises mixing the finely powdered carbide with a metal such as iron, cobalt, or nickel, grinding in a ball mill in presence of an inert liquid such as benzene, removing the liquid, adding a small proportion of water, and then at once compressing the moist material in a mould and allowing it to dry; the body is then machined to the required shape and sintered.
Patent GB-877312-A (GB)
Title: Method of firing and sintering refractories
Inventor: NEITZEL MARTIN
IPC: C04B2/10
Filed: 1959-09-18
Abstract: Refractory materials such as magnesite and dolomite are converted into granular form such as briquettes and coarse lumps and then coated with an iron containing sintering flux for example powdered iron or red mud, prefixed to form a solid protective flux coating and finally sintered in a kiln.  The flux coating is applied by dipping, rolling or spraying and the prefixing at temperatures of up to 900 DEG C. takes place on a gas permeable conveyer chain and the final sintering is effected in a rotary kiln.
Patent GB-1573050-A (GB)
Title: Utilization of ambient sources of energy
IPC: F24V50/00
Filed: 1977-07-29
Abstract: A body of still water is confined in heat exchange with one or more ambient heat sources whose temperature is usually above but may drop near 0 DEG  C. Heat is withdrawn from the body according to the heat-pump principle. If the temperature of the heat sources drops near zero the withdrawal of heat from the body results in the formation of ice in the body and the latent heat of fusion liberated during the ice formation is also withdrawn, so that the time periods during which the temperature of the ambient sources is near 0 DEG  C. can be bridged. When the temperature of the ambient sources rises again their heat is used to re-melt the ice in the body of water.
Patent GB-341944-A (GB)
Title: Improvements in feed water supply systems
IPC: F22D1/32
Filed: 1929-10-22
Abstract: 341,944. Steam boiler feed-supply systems. YOUNG, J. W., The Croft, Meadow Road, Urmston, Manchester, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Bush House, Aldwych, London. Oct. 22, 1929, No. 32066. [Class 123 (ii).] A feed-supply system having a surge tank 13 between the extraction pump 2 and the feed pump 9 is provided with a storage tank 15 connected with the low-pressure region of the condenser 1 through a valve 17, which is closed when the level in the surge tank falls to a predetermined level, and with the feed main between the pumps 2, 9 through a valve 22, which is normally closed and is opened when the level in the surge tank falls to a lower predetermined level. The water from the extraction pump passes through air ejectors 3 and heaters 4, 8 heated by steam from stages of the engine 5. An evaporator 12 heated by some of the steam from the higher pressure stage delivers further steam into the steam from the lower pressure stage. An overflow pipe 23 connecting the upper part of the surge tank with the storage tank opens into the flow and return pipe 14 of the surge tank through a branch fitted with a non-return valve 22, which opens when the water level in the pipe 14 and the surge tank falls below that in the storage tank, and allows water to flow directly from the storage tank to the feed pump. The valve 17 may be by-passed by a connection 20 allowing a constant leak off from the storage tank to the condenser. A pipe 24 fitted with a valve 25 allows water to flow in an emergency directly from the storage tank to the feed pump.
Patent GB-1526588-A (GB)
Title: Sodium-sulphur cells
IPC: H01M2/10
Filed: 1977-07-28
Abstract: 1526588 Sodium-sulphur battery CHLORIDE SILENT POWER Ltd 28 July 1977 [2 Aug 1976] 32100/76 Heading H1B A Na-S battery comprises cells provided with a matrix of porous material inert to Na, S and Na polysulphides extending therearound preferably separating individual cells, and non- porous material forming a casing around the matrix. Separators, e.g. strips of alumina or malleable Fe with coating, e.g. of graphite, carbide, sulphide or sulphate resistant to Na polysulphides, may be arranged between adjaccent cells in the matrix. The porous material may be a unitary block of alumina, magnesia, zirconia and/or fireclay, SiN or packed pulverized fuel ash.
Patent GB-602076-A (GB)
Title: Steam boiler
IPC: F22B7/06
Filed: 1945-11-29
Abstract: 602,076. Arrangements of water tubes in boiler flues. NAAMLOOZE VENNOOTSCHAP NEDERL. FABRIEK VAN WERKTUIGEN VOOR LANDBOUW EN VERVENING MACHINEFABRIEK WERKLAND. Nov. 29, 1945, No. 32227. Convention date, July 31, 1943. [Class 123(ii)] The part 7 of a flue tube 4 of a steam boiler, beyond the grate 5, is made of hexagonal cross-section, and transverse rows of water tubes 8, 9, e.g. four to each row, extend across the flue between pairs of opposed sides thereof, the tubes of one row being disposed at an angle of 60 degrees with the next. The outermost tubes 8 of the rows are curved outwardly, and the inner tubes 9 are, preferably, also curved in the same direction but to a lesser degree. The distance between the outermost tubes 8 of each row and the adjacent inner tubes 9 may be made less than that between the two inner tubes. Specification 332,828, [Class 123(ii)], is referred to.
Patent GB-671314-A (GB)
Title: Improvements in or relating to dynamo electric machines which may also be employed as eddy-current couplings and dynamometers
IPC: H02K49/04
Filed: 1949-12-15
Abstract: 671,314. Dynamo-electric machines. WELLMAN SMITH OWEN ENGINEERING CORPORATION, Ltd., and ROSS, E. G. Dec. 12, 1950 [Dec. 15, 1949], No. 32247/49. Class 35. An eddy-current coupling dynamometer or homopolar generator comprises a magnetic member 1, a second member 12, an exciting winding 4 producing a toroidal flux interlinking both members 1, 12, and a winding comprising conductors 23, 24 accommodated in staggered slots 15 in the member 12 and conductors 19, 21 embedded in the material of the member 12. The first member 1 has a cross-section at any longitudinal plane of V-shape and the second member 12 has an outer circumferential face of corresponding shape with two sets of staggered slots 15 formed in the two frusto-conical faces. The exciting winding 4 or a part of it may, if desired, be disposed at 34 in a circumferential gap 14 in the member 12. This part of the winding may be in series with the winding on the member 12. Alternatively, the winding in the circumferential gap 14 may be connected to the winding 4 on the member 1 through slip-rings, and these windings may be excited from an external source. The exciting winding may be supplied from a D.C. exciter having two field coils, one connected to the winding of the member 12 and the other supplied from a separate D.C. source. In another arrangement, the exciter armature is in series with a separate D.C. source and with the exciting winding. Alternatively, the exciting winding may be supplied with D.C. from A.C. mains 44 through electronic valves 43, as shown in Fig. 6. The teeth 32 form fan blades which cause air to be drawn by way of apertures 33 and then forced into the circumferential gap 14 whence air is finally ejected by projections separating slots 31 formed in the member 1.
Patent GB-306988-A (GB)
Title: Improvements in hydro-pneumatic liquid raising plants
IPC: F04F10/00
Filed: 1927-11-30
Abstract: 306,988. Boving, J. O. Nov. 30, 1927. By aerating ascending column; systems; vacuum apparatus.-Liquid is raised through a pipe i to a chamber k partly by compressed air &c. admitted at the point o from a pipe m, and partly by a vacuum induced into the chamber k by the flow of liquid from a level a through a siphon c, d, e, the chamber k being open to the siphon through a pipe l and nozzle g. The air carried down by the falling liquid is compressed and separates in the chamber h, from which it passes through the pipe m to the point o. The spent liquid passes to the lower level b. Additional air may be drawn into the ascending liquid at a point q where the pressure of the air admitted at o has fallen slightly below atmospheric.
Patent GB-876319-A (GB)
Title: Improvements in printing mechanisms
IPC: B41J1/60
Filed: 1959-09-22
Abstract: 876,319. Typewriters &c. INTERNATIONAL BUSINESS MACHINES CORPORATION. Sept. 22, 1959 [Sept. 23, 1958], No. 32285/59. Class 100(4) A printing mechanism having a single truncated spherical type head tiltable and rotatable for type selection as described in Specification 842,328 is provided with detenting means which are disconnected during the type setting movement but engaged to align the type head just before it effects impression. The type head 1 is so mounted on a carrier 26, which is pivoted about trunions 50 to effect impression, as to allow tilting and rotation relative thereto by the action of tapes 33, 43 as described in Specification 873,920. Attached to a block 6 which supports the type head 1 is a plate 14 having teeth 15 and in openings between these parts a member 16 is guided which is pivoted at 17 and has a projection 18 which can engage the teeth 19 on the lower edge of the type head 1. A lever 55 pivoted to a yoke 23 and guided in its slot 54 has an arm 57 engaging in an opening 58 of the member 16 and an arm 59 projecting below the yoke into engagement with a lever 62 which in turn engages a lever 64 pivoted on a stud 65 fixed to a carrier 51. A cam 68 on a sleeve 67 fixed on a shaft 52 normally engages a projection 70 of the lever 64 which through lever 62, and arm 59 pivots the lever 55 to disengage it from a detent teeth 15. The lever 55 engaging the member 16 pivots it downward against its spring 20 to disengage the projection 18 from the teeth 19. Impression is effected by a single rotation of the shaft 52 which by cams 84, 85 on the sleeve 7 engages a follower 72 to rock the carrier 26. The cams 84, 85 disengage before impression occurs the parts continuing to move under momentum until an arm 88 of a member 87 attached to the carrier 26 is engaged by an anvil 89 also on the sleeve 67, to produce a whipping action to effect impression. The position of the anvil 89 on the sleeve can be adjusted to vary the moment of its engagement with the arm 88. During rotation of the shaft 52 before impression occurs and after the type setting movement is complete a low dwell on the shaft 70 allows the lever 64 and hence the levers 62, 55 to pivot so that the member 16 rises to engage its projection 18 with the teeth 19 and a lever 55 engages the teeth 15 so that the print head is centred and locked when impression occurs.
Patent GB-1152497-A (GB)
Title: Improvements in or relating to Trigger Circuits
Inventor: BRANDSTADTER ISAAC JOSEPH
IPC: G05F1/455
Filed: 1966-07-19
Abstract: 1,152,497. Thyristor firing arrangements; rectifying, YISSUM RESEARCH DEVELOPMENT CO. OF THE HEBREW UNIVERSITY OF JERUSALEM. 19 July, 1966 [20 July, 1965], No. 32289/66. Headings H2F and H2H. A trigger circuit for a thyristor connected in series with a load between A.C. supply terminals comprises a phase shifting a bridge network having two fixed and one variable resistive arms 12-14 and one capacitive arm 15, 16, the capacitive arm and the variable resistive arm being connected between the supply terminals via a coupling capacitor 11 and the other corners of the bridge being connected to a pulse shaping transistor circuit having an output transformer 23 whose secondary winding 26 is connected to fire the thyristor. The pulse circuit is connected across a diagonal of a diode bridge, the transistor 19 being driven into conduction by an L.C. network 20, 24 once per half-cycle which discharges a capacitor 25 through primary winding 22, thus inducing a voltage in the secondary winding 26. In an alternative arrangement, Fig. 2 (not shown), reverse parallel thyristors (1a, 1b) are fired by two similar triggering circuits. The arrangement may be adapted to supply D.C. in a biphase centre tapped transformer arrangement. The circuit may control a lighting, heating or cooking load, an electric fan or other small motor.
Patent GB-1234939-A (GB)
Title: Improvements relating to terminals for gas-cushion vehicles
Inventor: CHARITY MICHAEL
IPC: B60V1/00
Filed: 1967-07-13
Abstract: 1,234,939. Air cushion vehicle terminal. HOVERCRAFT DEVELOPMENT Ltd. 12 July, 1968 [13 July, 1967], No. 32348/67. Heading B7K. A terminal for side wall gas cushion vehicles comprises a pair of spaced channels 5 in or on the ground 1. Attached to the two facing sides of each channel are two walls preferably comprising independently deflectable contiguous flexible wall members of the type disclosed in Specification 1,043,351, which wall members depend limply from the channel faces. When a vehicle approaches the channels so that its side walls 6 enter the channels, the vehicle supporting cushion inflates the wall members at 7 so as to effect a seal between the wall members 7 and the side walls 6 ; the wall members not adjacent the side walls 6 are inflated against one another so as to seal the remainder of each channel, the wall members being sufficiently flexible to allow easy passage of the side walls along the channels. As the vehicle enters the channels there is initially a drop in cushion pressure which may cause the sidewalls 6 to ground in the channels; to minimize this danger the channels may be made short so as to be of small volume, or may be made deep. Alternatively the channels may have an air supply separate from the vehicle, Fig. 4 (not shown), which method has the additional advantage of permitting the channels 5 to be extended beneath the water level, the extended channels having buoys and guide wires to allow accurate entrance of the vehicle. The channels may be made movable to accommodate vehicles of various sizes, and to permit their use in tidal waters. The channels may be at least part filled with water. An air curtain, Fig. 7 (not shown), may be used in place of the wall members to seal the channels.
Patent GB-366483-A (GB)
Title: Improvements in and relating to aluminium alloys
IPC: C22C21/00
Filed: 1930-10-28
Abstract: Lead is incorporated in aluminium by means of magnesium so as to produce a ternary alloy containing about 2 per cent of lead in the form of a homogeneous solid solution.  The aluminium is melted in a plumbago crucible lined with magnesia and the bath is cleaned by adding deoxidizing mixtures such as mixtures of calcium fluoride and sodium fluoride.  In one example, a magnesium-lead alloy is then added of such a composition that the final alloy contains 0,8-1 per cent of magnesium.  After further cleaning with the deoxidizing mixture the alloy is tapped.  Alternatively the magnesium and lead may be added in the unalloyed form. Specifications 252,028 and 283,926, [both in Class 82 (i), Metals, Extracting &c.], are referred to.  The Specification as open to inspection under Sect. 91 (3) (a) comprises also incorporating lead by means of magnesium in aluminium alloys and includes an example of an aluminium alloy containing 3,5 per cent copper, 0,3 per cent of manganese, 0,4 per cent silicon, 0,3 per cent of iron, 1,95 per cent of lead, 0,9 per cent of magnesium. This subject-matter does not appear in the Specification as accepted.
Patent GB-1106534-A (GB)
Title: Process of preparing macromolecular polyoxymethylenes
IPC: C08G2/00
Filed: 1965-07-29
Abstract: Formaldehyde, either monomeric or in the form of a precursor is polymerized in an inert liquid medium in the presence of an inorganic metal salt dissolved in the liquid medium, the salt being a carbon- and halogen-free salt of an element whose halides are Friedel-Crafts catalysts with the exception of mercury. Preferred salts are the nitrates, e.g. cadmium, zinc, iron or cobalt and particularly zinc and/or cadmium nitrates and iron and/or cobalt nitrates.  The inert liquid medium may be acetone, tetrahydrofuran, ethyl acetate or dioxan amongst others. Copolymers of formaldehyde containing a minor proportion of comonomer may also be produced.
Patent GB-728978-A (GB)
Title: Improvements in the production of thioether dicarboxylic acids
Filed: 1952-12-23
Abstract: Thio-ether dicarboxylic acids are produced by heating a gamma- or delta-lactone in the presence of water with an alkali or alkaline earth metal sulphide or hydrosulphide to a temperature in the range 120-300 DEG  C. in a pressure-tight vessel.  Suitable lactones are, for example, gamma-butyrolactone, gamma- or delta-valerolactone, angelica lactone and the lactone of benzyl alcohol-o-carboxylic acid. The alkali metal or alkaline earth metal sulphides and hydrosulphides are advantageously used in the form of their aqueous solutions.  The process may be carried out batchwise or continuously.  In the examples (a) sodium sulphide, water and gamma-butyro-lactone are heated together and the mixture is cooled and acidified to give thiodipropyl ether dicarboxylic acid.
Patent GB-189791-A (GB)
Title: Improvements in or relating to wick burners
IPC: F23D3/00
Filed: 1922-11-29
Abstract: 189,791. Santiquet, J. Nov. 29, 1921, [Convention date]. Portable 8 spirit stoves; supports for articles to be heated.- The Specification, as open to inspection under Sect. 91 (3) (a), shows means for supporting a cooking vessel above a lamp which mav be fitted with a hood a, Fig. 9, (Cancelled). The support consists of a disc or ring j<3> carried by three arms j<2> on a cone j<1> which fits on the lamp collar d. This subject matter does not appear in the Specification as accepted.
Patent GB-1442598-A (GB)
Title: Multi-spindle lathes having automatic workpiece handling apparatus
IPC: B23Q7/04
Filed: 1972-07-13
Abstract: 1442598 Workpiece transferring WICKMAN MACHINE TOOL SALES Ltd 4 July 1973 [13 July 1972] 32713/72 Heading B3B In a multi-spindle lathe having an indexable spindle drum 13 carrying a plurality of chucks 14 there is provided a loading and unloading arm 16 mounted on a shaft 15 which can be moved axially and angularly by a cam and lever mechanism, a workpiece gripping chuck 18 pivotally mounted on the arm 16 to load and unload workpieces in the spindle chucks 14, and a jaw device (Fig. 3, not shown) attached to a housing 26 on the shaft 15 which acts to turn a workpiece 180 degrees after machining one end to allow the other end to be machined, the said jaw device being attached to a spindle (41) which is rotated by a bevel gear drive in response to rotation of the shaft 15 within the housing 26. The jaw device has hydraulically operated gripping jaws (47), (48). The arm 16 may have two independently movable parts each having two chucks 18 to simultaneously load and unload from adjacent spindle chucks 14 and orientate a workpiece by the jaw device.
Patent GB-448090-A (GB)
Title: Improvement in windshield wipers
IPC: B60S1/38
Filed: 1935-11-27
Abstract: 448,090. Windscreen-cleaners. TRICO PRODUCTS CORPORATION, 817, Washing- ton Street, Buffalo, New York, U.S.A. Nov. 27, 1935, No. 32866. Convention date, Dec. 31, 1934. [Class 19] A windscreen-wiper blade comprises plies 3 of non-porous rubber with their wiping edges stepped as shown, the plies being clamped within a holder 1 which is crimped along the sides as at 4, and has marginal portions 5 extending parallel to each other to prevent the wiping edges of the plies from spreading apart under the crimping pressure.
Patent GB-495600-A (GB)
Title: Improvements in or relating to direction indicators for vehicles
IPC: B62J6/00
Filed: 1937-11-30
Abstract: 495,600. Road-traffic signals on vehicles. HORN, H. G. Nov. 30, 1937, No. 33028. [Class 118 (ii)] In a direction indicator for vehicles, the arm, Fig. 6, built up of two steel bands 42, 43, is normally wound around the drum 37 by means of the rack 40 and pinion 39, a pawl 49 engaging in a slot 50 to retain the arm in this position. Upon depression of the pawl 49, the drum rotates, the arm taking up the position shown and the lamp 54 being illuminated by current from the battery 46 passing through contacts 44, 45 and the bands 42, 43. In a modification, the rack 40 has the shape of a toothed segment and is rotated by a handle which engages behind a projection when the arm is not in use. As shown in Fig. 5, the drum 13 is rotated by means of a roller 24 pressing on a cord 22 attached to a pin 23 and passing around a pulley 21. Upon the handle 27 being depressed, the arm 25 is moved into the dotted position causing the drum to rotate, thus winding in the arm. Band 15 is earthed while band 14 completes a circuit to the lamp 17 through the contacts 29, 30. A separate battery 32 may be provided or the armature of a dynamo may be rotated by the rapid movement of the arm into its signalling position, the inertia of the armature causing it to continue its rotation for some time.
Patent GB-731095-A (GB)
Title: Improvements in or relating to a tool for form dressing grinding wheels and method of making the same
IPC: B24B53/00
Filed: 1952-12-31
Abstract: 731,095. Dressing grinding-wheels. WHEEL TRUEING TOOL CO. Dec. 31, 1952 [April 4, 1952], No. 33077/52. Class 60. [Also in Group XXII] A tool for form-dressing a grinding-wheel 30, Fig. 5, comprises a sintered matrix of refractory metal having finely-divided abrasive particles 31 embedded in a surface of reverse contour to that of the wheel to be dressed. The matrix is preferably formed from powdered tungsten which may be mixed with tungsten carbide while the abrasive consists of diamond particles having a size of 50 to 500 per carat and a preferred size of 400 per carat. Fig. 6 shows a tool 40 with two abrasive surfaces. This tool may be mounted on a reciprocable carriage 42, Fig. 7, to dress simultaneously two wheels 43, 44 rotated in opposite directions.
Patent GB-1081066-A (GB)
Title: Photographic document copying apparatus
IPC: G02B6/00
Filed: 1964-08-14
Abstract: 1,081,066. Document copying apparatus. EASTMAN KODAK CO. Aug. 14, 1964 [Aug. 14, 1963], No. 33165/64. Headings G2A and G2J. In the apparatus shown, a copy of a moving original 10 is made on to a copy sheet 11 moving in the opposite direction, by means of a system of two arrays 35, 36 of light-conducting fibres. Each array is disposed transversely to the direction of movement of the sheets, so that the side elevation of Fig. 5 shows one fibre of each array. The ends 37, 38 of the fibres in array 35 are offset with respect to each other, as shown, and the ends 39, 40 of the fibres in the other array 36 are similarly offset. The distance between ends 37 and 39, measured along the original, is equal to the distance between ends 38 and 40 measured along the copy sheet. Thus each point on the original is scanned twice, as it passes respectively under ends 37 and 39, the reproduced images being superimposed in register as the corresponding point on sheet 11 passes over ends 38 and then ends 40. This enables the speed of movement of sheets 10 and 11 to be increased. Illumination is provided by lamps 47, 48 and concentrated by prisms 49, 50. A modification is described in which the two sheets are coplanar.