baber/WOPTO huggingface dataset:
Patent GB-1498333-A (GB)
Title: Blast furnace stove
IPC: C21B9/06
Filed: 1976-02-03
Abstract: 1498333 Blast furnace stoves DIDIER. WERKEAG 3 Feb 1976 [6 Feb 1975] 04201/76  Heading F4K A blast furnace stove has an external sheet metal casing 1, an internal lining 2 of heat insulating and refractory material, and a gastight barrier layer 7 expanded silica (e.g. foamed glass) situated either immediately adjacent the inner surface of the casing 1 (which surface may in such case be painted), or separated therefrom only by a plastics or metal sheet 8. A further sheet 8 may be interposed between the barrier layer 7 and the stove lining 2.
Patent GB-311018-A (GB)
Title: Improvements in machines for working or treating india rubber
IPC: B29B7/62
Filed: 1928-02-10
Abstract: 311,018. Coffey, J. H. Feb. 10, 1928. Roller apparatus.-A rubber working machine comprises hollow steam-heated rolls a of uniform diameter from end to end having thin walls of uniform thickness. The rolls are preferably of turned and bored steel. They are preferably driven independently by variable speed motors.
Patent GB-612525-A (GB)
Title: Improvements in or relating to condensation products and process of producing same
IPC: C08G8/22
Filed: 1946-02-12
Abstract: An adhesive comprises the condensation product of resorcinol with 0.5 to 0.73 mols. of formaldehyde (per mol. of resorcinol) at a pH between 6.2 and 7.5 (preferably between 6.8 and 7.2) together with 10 to 100 per cent (based on resorcinol) of water-soluble polyhydric alcohol, e.g. glycerol, 2-ethyl hexanediol-1 : 3, ethylene glycol, glucose, sorbitol or mixtures thereof, with or without 10 to 65 per cent (based on resorcinol) of a water-soluble monohydric alcohol, e.g. methyl, ethyl, or propyl alcohol. Condensation is effected in the presence of a non-volatile alkali, e.g. caustic soda, caustic potash, soda ash, or lime, by heating at 80 DEG  to 100 DEG  C. until the viscosity of the solution remains unchanged.  Before use, there is added to the adhesive, formaldehyde solution or paraformaldehyde to bring the total quantity of formaldehyde up to 0.8 to 1.6 mols. (per mol. of resorcinol).  Fillers, e.g. wood flour or walnut shell flour, may be added.  In examples: (1), (4) resorcinol, formaldehyde solution, ethyl alcohol and (1) 2-ethyl hexanediol-1 : 3 or (4) glycerol are reacted in the presence of caustic soda at pH 7 and refluxed to constant viscosity, further ethyl alcohol is added, and the solution is cooled; (2) resorcinol, formaldehyde and ethyl alcohol are reacted in the presence of caustic soda at pH 7, then refluxed and glycerol and more ethyl alcohol added and the solution cooled; (3) resorcinol, formaldehyde solution and glycerol are reacted in the presence of caustic soda at pH 6.3, refluxed, diluted with more water, and cooled.
Patent GB-326303-A (GB)
Title: Improvement in a door knob
IPC: E05B3/06
Filed: 1929-02-08
Abstract: 326,303. Ellingson, E. Feb. 8, 1929. Knobs and handles, attaching. -The square spindle 3 for operating a door latch &c. (not shown) is threaded and has screwed thereon bearing bushes 6 with reduced portions which rotate in bearing members 9 integral with fixing plates 7 secured to the door by screws 8. Rosettes 11, which may be of glass, are placed over the bushes and are held against rotation by upstanding tongues 13 on the plates 7 engaging corresponding recesses in the rosettes. The rosettes are retained in place by the knobs 14, which may be of glass and are secured on the spindles by screws 18 passed axially through the knobs and screwed into the ends of the spindle 3. Rotation on spirdle 3 of the knobs 14 and bushes 6 is prevented by washers 19 interposed between the knobs and bushes and housed in recesses in the knobs as shown. These washers have square central holes 21, Fig. 4, fitting on the spindle 3 and radial ribs 22 engaging corresponding grooves in the knobs and bushes.
Patent GB-939064-A (GB)
Title: Improvements in processes for the production of plastic tubes
Inventor: EULING TERENCE MARTIN
IPC: B29C48/10
Filed: 1960-02-08
Abstract: Plastic tubes including tubes of film are guided out of contact with solid surfaces by a gas cushion to which gas is supplied under pressure, the cushion exerting a restoring force on the tube if it moves towards the cushion, the tube being held against the cushion by gas pressure.  In one embodiment, a tube 1, Fig. 1, is collapsed by air issuing from apertures 3 in opposing surfaces of air boxes 2 and then flattened between nip rollers 5.  The air boxes may have baffles 6 Figs. 2 and 3 (not shown).  The supply of air to the apertures 3 may be controlled by a roller blind 7, Fig. 4 (not shown) having a cut-out section 8.  A tube 20, Fig. 5, of thick thermoplastic film is fed through rollers 21 and heated by infra-red heaters 22.  The tube is expanded by air supplied through tube 25 and is longitudinally stretched by further <PICT:0939064/IV(a)/1> <PICT:0939064/IV(a)/2> <PICT:0939064/IV(a)/3> <PICT:0939064/IV(a)/4> rollers, not shown, rotating faster than the rollers 21.  Heaters 24 maintain the film in a thermal condition suitable for stretching.  The tube is guided by air or other gas under pressure from an air box 23.  In a modification, a stretched or unstretched tube 30, Fig. 6, is surrounded by a chamber 31 divided into compartments by walls 34 and supplied with air under pressure through an annular chamber 32. Flaps 38 seal the edges of walls bounding the chamber 31 and a chamber 36.  Should the tube deviate to the left the consequent increase in pressure in the left hand compartments returns the tube to central position.  In another embodiment a tube 40, Fig. 7, (not shown) is heated by infrared heaters 43 and is stretched by inflation.  An air box 44 surrounding the tube and supplied with heated air guides the tube. A further air box 45 supplying hot or cold air guides the tube after stretching.  In a further modification, a tube 61, Fig. 8, is collapsed by triangular air boxes 63 and a ring of air boxes of alternating triangular and trapezium shape.  The tube passes between a further set of air boxes comprising triangles and trapeziums before being flattened by rollers 62.
Patent GB-798374-A (GB)
Title: Apparatus for disintegrating refuse and like waste matter
Inventor: HUMMELEN NIKLAAS THEODOROUS
IPC: C05F9/02
Filed: 1957-02-08
Abstract: 798,374. Disintegrating-apparatus. DORROLIVER, Inc. Feb. 8, 1957, No. 4358/57. Class 59 Apparatus for disintegrating refuse or like waste matter comprises a perforated trough-like member 10 which receives the waste matter and through which extend scroll blades 15, 16 of opposite hand mounted on a rotatable shaft 14, the inner surface of the member 10 being roughened or provided with projection 17, and the scroll blades extending longitudinally of the member 10 in staggered relationship so that the trailing end of each blade terminates short of the corresponding end wall of the member 10. The projections may be adjustable radially and the scroll blades may each have a wear-resisting strip 22 detachably and adjustably secured thereto. The member 10 may be provided with at least one trap door 19 operable by means of a pivotally-mounted lever 20 at one or both ends of the member 10. Any number of scroll blades may be provided.
Patent GB-564428-A (GB)
Title: Improvements relating to fly-wheel magnetos
IPC: H02K21/38
Filed: 1943-03-22
Abstract: 564,428. Magnetos. LUCAS, Ltd., J., and WHITEHOUSE, H. E. March 22, 1943, No. 4601. [Class 35] A fly-wheel magneto, particularly for use on motor cycles, comprises a hollow stator e, Figs. 1 and 2, having permanent magnets f and laminated or other iron parts g carrying windings h and provided with salient poles j. A hollow fly-wheel k, secured to the crank-shaft or other engine-driven shaft d, has a peiiphery surrounding the stator and carrying on its inner surface an iron pole system m, preferably laminated, adapted to co-operate with the stator poles for effecting the required magnetic flux changes through the windings. The stator, which may have a number of windings for supplying current for different purposes, is carried by a plate a secured to the engine casing by bolts b. An interrupter n is mounted within the stator and is actuated by a cam p. In the modified construction shown in Fig. 3, the magneto is mounted within a housing q formed on the engine casing and the rim of the flywheel k extends outwardly over the stator, which is carried by a removable cover r of the housing. The shaft d is supported by a bearing s carried by a bracket on the stator, which bracket also serves as a support for the interrupter which is operated by the cam p arranged on the end of the shaft.
Patent GB-602928-A (GB)
Title: Improvements in or relating to station identification in telecommunication systems
IPC: H04M15/08
Filed: 1946-02-14
Abstract: 602,928. Automatic exchange systems. STANDARD TELEPHONES & CABLES, Ltd., BRAY, F. H., BROOKS, L. J., HARTLEY, G. C., and LOWRY, L. P. Feb. 14, 1946, No. 4632. Drawings to Specification. [Class 40 (iv)] The system described is identical with that of Specification 602,927, but the claims are directed to telecommunication systems in which the stations are arranged in groups and in order to identify a station, a potential is connected in a connection, at a point ahead of the line circuit, over a lead used for other purposes, to initiate identification by actuating a device common only to the group in which the station is arranged, said potential differing in value, sign or kind from other potentials which may be connected to the lead. In the embodiment described, the lead used is the combined hold and metering lead.
Patent GB-1091699-A (GB)
Title: Electrolytic purification of aqueous caustic solutions
Inventor: HOTCHKISS ROBERT LEON
IPC: C01D1/40
Filed: 1966-02-02
Abstract: A method of purifying caustic solutions containing metal ion impurities (i.e. metal ions below Al in the electro-motive force series such as Zn, Cr, Fe, Cd, Co, Ni, Sn, Pb, Sb, Cu, Hg, Ag, Pb and Au) comprises subjecting to electrolysis an aqueous caustic solution containing a maximum of 500 p.p.m. metal ion impurities employing at least one anode and at least one mesh pad cathode of an electric current conducting metal which is resistant to caustic under electrolytic cell operating conditions, the mesh pad cathode being from 1/4 to 4 inches in thickness and fabricated of strands having a cross-sectional area equivalent to wire of 0.001 to 0.03 inches in diameter and a strand surface area to pad volume ratio of from 50 to 600 sq. ft. of area per cubic foot in volume.  The cathode strands may be of Ni, Ni alloys, stainless steels, mild steel or Ag. The caustic solution may be passed through the cell so as to flow through the mesh pad cathode or the cathode may be vibrated, reciprocated or rotated.  Aqueous solutions containing greater than 40% NaOH, a current density of 1 to 6 amps/sq. ft., a solution temperature from 25 DEG C. to its boiling point and Ni anodes may be used.
Patent GB-633541-A (GB)
Title: A process and apparatus for electrolysis
IPC: C25B1/28
Filed: 1948-02-17
Abstract: 633,541. Diaphragms for electrolysis. LAPORTE CHEMICALS, Ltd., (formerly LAPORTE, Ltd., B.)., BISHOP, C. 0., and HULLAND, H. L. Feb. 17, 1948, No. 4659. [Class 41] An electrolytic box-type diaphragm comprises a framework of solid material which is an electric insulator and is inert to solutions of sulphuric acid, persulphuric acid and their salts, the framework having at least one porous ceramic diaphragm plate welded or cemented thereto. As shown, the diaphragm comprises a narrow rectangular box made from sheets of plastic material joined together by cement. In each back and front wall two porous ceramic plates are inserted in the spaces 2, the plates being cemented at the edges to the framework and to backing strips of plastic material. The framework has a baffle plate 6 and an inlet tube 7 and outlet tube 8 for the electrolyte.
Patent GB-924667-A (GB)
Title: Improvements relating to shelving, racks, bins, or the like
IPC: A47B57/42
Filed: 1961-02-08
Abstract: 924,667. Shelves; stands. W. A. ORD. Feb. 1, 1962 [Feb. 8, 1961], No. 4671/61. Classes 52 (1) and 52 (3). A display or storage unit comprises a shelf 5 or other goods supporting member, e.g. rack or bin, and two brackets 10, 11 wherein one bracket 10 is movable relative to the shelf 5 into and out of engagement with a frame 17 while the other bracket 11 is engaged with the frame 17. The L-shaped, downwardly projecting hooked ends 12 of the brackets 10, 11 engage in vertically elongated slots in the frame 17, the bracket 11 being secured to the shelf 5 and the bracket 10 being engaged through slots therein by pins 14.
Patent GB-532934-A (GB)
Title: Improvement relating to mold operating in glass working
IPC: C03B9/28
Filed: 1939-07-31
Abstract: 532,934. Blowing glass. CORNING GLASS WORKS. July 31,1939, No. 4708/40. Convention date, Aug, 12, 1938. Divided out of 532,888. [Class 56] A mould for blowing hollow glassware comprises a pair of halves mounted in supports, one support being movable in a path inclined to the axis of the mould while the other support rotates about a fixed axis to open or close the mould. The mechanism comprises an inclined track 13 along which one support 15 is moved to-and-fro by a pneumatic cylinder 20. An arm 26 connected to the support 15 carries a'rack 25 which meshes with a toothed sector 24. This sector, and the other mould support 22, are both secured to a pin 21 journalled in the arms 12 that carry the track 13. Movement of the support 15 along the track causes the mould halves to open and close. Specification 532,888 is referred to.
Patent GB-1499203-A (GB)
Title: Thyristor structure to facilitate zero point switching
IPC: H01L31/167
Filed: 1975-02-04
Abstract: 1499203 Transistor circuits STANDARD TELEPHONES & CABLES Ltd 4 Feb 1975 4712/75 Heading H3T [Also in Division H1] In an alternating current phase control circuit, a transistor switch TR1 is connected across the cathode and parts of a region of a PNPN thyristor TH1 from which the gate is also formed. When the voltage at the junction of a Zener diode ZD1 and resistor R1 does not exceed the diode breakdown voltage the transistor TR1 remains off and the thyristor TH1 can be turned on by a gate pulse. If this voltage exceeds the breakdown value the transistor TRI is switched on thus shorting the cathode and regions of the inner P layer, part of which forms the gate, which extend through and are isolated from the outer N cathode layer (see Division H1). The thyristor is then insensitive to gate pulses.
Patent GB-372428-A (GB)
Title: An improved method of manufacture of needles for use in gramophones and like instruments for the reproduction of sound
IPC: B21F25/00
Filed: 1931-02-16
Abstract: 372,428. Gramophone and like needles. BURROWS, H., West Thorn, Breck Road, Poulton-le-Fylde, near Blackpool. Feb. 16, 1931, No. 4790. [Class 40 (ii).] Gramophone and like needles are made from a synthetic resinous product such as the substance known by the registered Trade Mark " Bakelite," and are pointed at both ends. The product may be cast in cylindrical moulds to form rods of suitable diameter, or alternatively, moulded flat sheets are cut into strips which are then made into cylindrical rods, e.g. by pressing through discs. A rod, which may be sufficiently long to form, say, six needles, is pointed by turning or grinding, a suitable length is cut off, and the process repeated until the rod is used up. The needles thus formed are each then pointed at the other end. One point may be more acutely angled than the other.
Patent GB-429249-A (GB)
Title: Improvements in landing gangways for ferry-boats
IPC: B63B27/14
Filed: 1935-02-14
Abstract: 429,249. Gangways. SOC. ANON. DES ANCIENS CHANTIERS DUBIGEON, 4, Rue de Teheran, Paris. Feb. 14, 1935, No. 4803. Convention date, Nov. 28, 1934. Addition to 424,324. [Class 113 (i)] In a disembarking gangway as described in the parent Specification a safety device to prevent the fall of the landing panels in the event of a fall of the oil pressure comprises a finger 10 which when the panels are raised engages in a notch 11 in the piston rod 8 of the hydraulic cylinder. When the panels are to be lowered oil pressure is applied to the chamber 12a surrounding the finger 10 and raises it against the action of the spring 13 and thereby opens the port 15 and hence the part 9<b> of the hydraulic cylinder to pressure. The movement of the oil out of the cylinder chamber 9<a> is throttled by the valve 31 which is moved to the left so that oil can only escape through the bleed port 31. This arrangement ensures the slow controlled fall of the panels. The position of the control finger 10 may be indicated by a luminous or other signal.
Patent GB-630219-A (GB)
Title: Improvements relating to thermionic valve oscillators
IPC: H03K4/16
Filed: 1947-02-19
Abstract: 630,219. Saw-tooth generating circuits. SCOLES, C. J., and METROPOLITANVICKERS ELECTRICAL CO., Ltd. Feb. 19, 1947, No. 4853. [Class 40 (vi)] In a relaxation oscillator in which a capacitor is charged during each cycle to hold the associated valve cut-off for a peiod determined by its rate of discharge the discharge circuit comprises a main and auxiliary path, the latter including a rectifier in series with a resistor and an adjustable bias potential. During the charging period the capacitor is charged to a higher potential than that of the bias potential so that on cessation of the charging current it then discharges rapidly down to the bias potential through the short time-constant path including the rectifier and the adjustable bias potential and then more slowly through the main path which is of long time-constant, the recurrence frequency of the oscillator thus being variable over a wide range by adjustment of the bias potential. The Figure shows a blocking oscillator in which capacitor C is initially charged through the valve V so that its upper plate is left negatively charged and the valve blocks. The capacitor then discharges rapidly through the short time-constant circuit comprising diode D resistors R1 and R2 until the potential of the upper plate of the capacitor has fallen so that diode D no longer conducts, when the discharge is completed through resistor R3. The level at which the diode ceases to conduct and therefore the duration of the fast discharge may be adjusted by-mean.s of the tapping on potentiometer R2. The hard-valve V may be replaced by a thyratron.
Patent GB-792557-A (GB)
Title: Concrete-like substances
IPC: C04B26/04
Filed: 1955-02-18
Abstract: A composition comprising aggregate and/or sand bound with a vinyl homopolymer or a nitrogen-free vinyl copolymer is made by mixing the aggregate and/or the sand with a volatile organic solvent solution of the binder and evaporating the solvent.  The composition may also include fillers such as powdered metal, e.g. aluminium, cement, e.g. Portland, rubber, bituminous material, cork, sawdust or earth, and plasticizers and stabilizers.  The copolymer may be of vinyl chloride and vinyl acetate.  Solvents mentioned are acetone, ethyl acetate, and methyl ethyl ketone.ALSO:A concrete-like composition comprising aggregate and/or sand and cement bound with a vinyl homopolymer or a nitrogen-free vinyl copolymer is made by mixing the aggregate and/or sand and cement with a volatile organic solvent solution of the binder and evaporating the solvent.  The composition may also include fillers such as powdered metal, e.g., aluminium, rubber, bituminous material, cork, sawdust, or earth, and plasticizers and stabilizers. Solvents mentioned are acetone, ethyl acetate, and methyl ethyl ketone.  In an example the composition is made by mixing 2-3 per cent by weight of the filler mix of a vinyl chloridevinyl acetate copolymer dissolved in acetone with stone chippings, sand, and Portland cement and allowing the acetone to evaporate.
Patent GB-329321-A (GB)
Title: Improvements in radio antennae
IPC: H01Q21/06
Filed: 1929-02-13
Abstract: 329,321. Standard Telephones & Cables, Ltd., (Bell Telephone Laboratories, Inc.). Feb. 13, 1929. Aerials; directive signalling.- A directive aerial, Fig. 2, consists of a conductor bent into the form of a plurality of sections, the intermediate section being in the form of squares whose sides are each an even multiple of a quarter of a wave length and the end sections being in the form of bisected squares having the short sides each an odd multiple of a quarter of a wave length. The arrangement is such that the currents in the vertical portions of the aerial are in phase and those in the horizontal portions are of opposite phase and thus neutralize each other. A plurality of aerials of the type shown in Fig. 2 may be arranged in the same vertical or horizontal plane or along a suitable curve at distances of half a wave length apart and in combination with the aerials, reflectors, constructed similarlv to the aerials, may be employed. The reflectors may be located at a distance of one quarter of a wave length behind the aerials. Energy to be radiated is preferably supplied to the aerial at anti-nodal points, e.g., R, S.
Patent GB-1088400-A (GB)
Title: A method of dewatering sludges with a decanting centrifuge
IPC: C02F11/145
Filed: 1965-02-04
Abstract: Sewage sludge is dewatered in a decanting centrifuge, lime is added to the centrifugate if not already present and it is treated with CO2 until pH is below 10, the resulting liquid is thickened and the solids fed back into the cycle before or after the centrifuge.
Patent GB-823060-A (GB)
Title: A metallic diaphragm disc and bellows made therefrom and method of making the same
IPC: F16J3/04
Filed: 1956-02-17
Abstract: 823,060. Making bellows; soldering. WEATHERHEAD CO. Feb. 17, 1956 [March 7, 1955], No. 4990/56. Classes 83 (2) and 83 (4). [Also in Groups XIII and XXIX] A temperature-responsive bellows, for a valve (see Group XXIX) for use in a car cooling system, is made up of a number of discs blanked from brass strip electroplated with tinlead solder. Each disc has an inner flange 28 about a central aperture 27 and an outer flange 29 and when an assembly of discs is compressed the flanges flatten as in Fig. 4 to provide flat-mating surfaces which are secured together when the assembly is fluxed and heated. Modified discs are described, Figs. 2, 3a (not shown), one having the extreme edge of the outer flange bent back so that the disc can be formed in a single operation, since the burr formed at the edge can extend in the same direction parallel to the disc axis as the burr 32 at the inner flange, without causing interference with the adjacent disc on assembly. A hollow stem, Fig. 1 (not shown), is secured to a disc at one end of the bellows, for bearing the valve member on a screw-thread and providing access to the bellows for filling. The bellows is calibrated after filling by first sealing temporarily the passage through the stem with a ball, then immersing the bellows in liquid at the desired temperature of operation and threading the valve member on the stem until it contacts its seat on the body of the valve (to which the bellows is secured by a saddlemember). The ball is then sealed, and the valve member is fixed, with solder. The discs are compressed before soldering by the securement of the saddle member to the valve body. The entire assembly is fluxed and heated to 625‹ F. for twenty minutes and is then cooled in a flux-removing solution and bright-dipped.
Patent GB-286080-A (GB)
Title: Improvements in all metal sliding doors for use on rail or road vehicles or ships
IPC: B61D19/00
Filed: 1927-02-22
Abstract: 286,080. Lightalloys, Ltd., and Grieve, W. H. Feb. 22, 1927. Doors for passenger vehicles. - Sliding metal doors for road vehicles &c. are formed of a onepart casting having vertical and horizontal ribs or flanges 3,. 4 at the edges and centre and around the window opening and a thin plate 9 is secured by countersunk screws to the middle of the door and around the window to give increased strength. The glass panel may be secured by a thickened edge 12 of the plate 9 engaging the packing 13. Thickened parts 6, 7 are provided for attachment of the door hangers and lock and parts 8 at the bottom for rollers. The plate 9 may extend the full width of the door.