baber/WOPTO huggingface dataset:
Patent GB-1426585-A (GB)
Title: Electrical impulse transmitters
IPC: H04M1/31
Filed: 1973-05-15
Abstract: 1426585 Impulse transmitters; powering substations R M MARCUS 15 May 1973 [22 May 1972] 23015/73 Heading H4K A push button apparatus which provides decadic impulses is powered over a telephone line and a capacitor in the apparatus is charged during interdigital pauses and "make" periods of signalling in order to supply the apparatus during break periods. The embodiment shows a push-button dialling apparatus incorporated in a subscribers subset, the integrated circuit IC including a memory for storing digits selected by depressing pushbuttons (not shown). On going off-hook switch H2 closes, and depression of a push-button opens switch S1 to supply line voltage via diode bridge DB to the positive and negative rails of the dialling apparatus, this voltage being regulated to 4À7 volts by Zener diode Z1. Transistor T2 is turned on to charge storage capacitor C1 from the rail voltage so as not to deprive the dialling apparatus of power during charging. A reset pulse is supplied to integrated circuit 1C via transistor T3, diodes D1-D2 and a pulse shaper M to cause an output O of the integrated circuit to operate a magnetically latching relay OR, thereby causing contact O1 to open and contact 02 to close, so maintaining the power supply to the apparatus on release of the push-button and shorting the transducer apparatus of the sub-set in preparation for impulsing. The relay OR may be held either by the integrated circuit output O or by timing circuit X. In known manner selected digits are stored and are read out from the circuit IC at output I to operate an impulsing relay IR to open and close contact I1, the apparatus being powered from capacitor C1 via transistor T4 and diode D4 during the break periods. On completion of impulsing the output O of circuit IC causes relay OR to release by turning on transistor T7 to discharge capacitor C5. In addition transistor T10 is biased off to turn off transistor T4 thereby ensuring no power is supplied to the rails of the dialling apparatus from either the telephone line or capacitor C1. However capacitor C1 continues to supply power to clock pulse generator G to drive circuit IC and keep relay OR released via output O while the positive rail discharges rapidly. The apparatus is protected from over-voltages on the line by Zener diode Z2 and resistor R13 and the rail voltage is limited to 5À1 volts by Zener diode Z3 should Zener diode Z1 or the emitter base junction of transistor T1 fail. Where long telephone lines are used a relay LR (not shown) may be added controlled by circuit IC to close a contact bridging contacts O1 and S1 during the first 15 ms. of each make pulse, thereby momentarily providing a low resistance signalling loop.
Patent GB-1148781-A (GB)
Title: Solid fuel heaters
Inventor: KEITH THOMAS HENRY
IPC: F24B13/02
Filed: 1965-05-31
Abstract: 1,148,781. Stoves. CHATWINS Ltd. 11 May, 1966 [31 May, 1965], No. 23023/65. Heading F4W. A solid fuel fired heater comprises a front panel 11 suspended from hook elements 15 on a fire-box 10, the hooks engaging in an inverted channel 19 on the panel, and a separate part 22 which is secured by a bolt 23 passing through the fire-box front thus clamping the front panel in position. The front part 11 is located laterally by projections 20 on the front of the fire-box being engaged by flanges on the front part around the door opening. Rods are used to control a rotary grate 14, an air inlet valve to the fire-box, a flue gas damper and a flap valve and movable top panel separating the air circulating around the fire-box to outlet 25 and the flue gases.
Patent GB-392527-A (GB)
Title: Improvements in or relating to the melting of ceramic vitreous or like materials
IPC: F27B7/02
Filed: 1931-08-15
Abstract: 392,527. Rotary furnaces. GOSSELL, K. O. T., 110, Cannon Street, London.- (Assignee of Berg & Co., Ges. f³r Industrie- Ofenbau und Feuerungsbedarf; Kalk, and Longert, C. L. ; Niehl, both in Cologne, Germany.) Aug. 15, 1931, No. 23049. Convention date, Aug. 16, 1930. Void [Published under Sect. 91 of the Acts]. Drawings to Specification. [Class 51 (ii).] Materials of high melting-point, such as basalt, blast-furnace slag, and cement and ceramic materials, are melted in a rotary furnace by the combustion of powdered fuel and air supplied under pressure. The furnace, which is mounted to tilt on trunnions, is of circular or oval cross section, and the area of the outlet opening for the exhaust gases is between oneninth and one-twenty-fifth of the cross-sectional area of the body of the furnace.
Patent GB-158818-A (GB)
Title: Improvements in or relating to pistons for rotary compressors or engines
IPC: F01B1/06
Filed: 1919-11-05
Abstract: 158,818. Maina, J. Nov. 5, 1919. Pistons; piston packing; guiding-means within cylinder.-A piston for a rotary engine or compressor comprises a perforated body a and a part e, which carries the packing g, h, and has a stem a screwing into the body a. The packing consists of leather washers, with which split rings may be associated. A bearing ball k rests in a seating in the end of the stem d, and is retained by a flange on the part a. The stem d may be locked by a stud m. In a modification, the ball k is replaced bv a roller and the piston is provided with guiding-grooves engaging projections on the cylinder as described in Specification 158,819.
Patent GB-1224444-A (GB)
Title: Multiple outlet valve
IPC: B65D83/14
Filed: 1969-05-06
Abstract: 1,224,444. 224, 444. Dispensing liquids by gaseous pressure. L'OREAL May 6, 1969 [May 6, 1968], No. 23178/69. Heading F1R. [Also in Division F2] A valve for simultaneously dispensing a plurality of liquids contained in respective pressurized containers 24, 25 has a central element 30 secured to a fixed plate 28 and having a conical heating surface 31 engaged by concentric tubes 38, 43 integral with respective flexible dome shaped portions 42, 37 attached to plates 36, 41 the interior of each tube being in communication with a given container. Downward pressure on the outermost tube 43 in abutment with the dome 37 causes flexure of domes 42, 37 to unseat tubes 38, 43 and liquid passes to outlet via passages 34, 39 and the space between tube 38 and element 30 for the liquid in container 24, and via passages 35, 46, the space between chamber 45 of plate 41 and the upper face of dome 37, aperture 44 and the space between tubes 38, 43 from container 25. In another embodiment the containers are concentric and the liquid from theoutermost container passes to outlet via an aperture in the fixed plate. The containers may have rigid walls and be internally pressurized or have flexible walls and be externally pressurized.
Patent GB-749389-A (GB)
Title: Means for shearing heavy gauge tubing
Inventor: LABAN WILLIAM HENRY
IPC: B23D21/14
Filed: 1953-08-22
Abstract: 749,389. Shearing. LABAN, W. H., and BROOKES (OLDBURY), Ltd. Nov. 3, 1954 [Aug. 22, 1953], No. 23187/53. Class 83 (4). Means for shearing a tubo 15 comprises a mandrel 19 and a collet 14 for supporting the tube internally and externally, the inner end face 20 of the mandrel forming an internal shear blade with which co-operates an external ring cutter 31 which is freely rotatable in a circular opening in a plate 22 to which is imparted an orbital motion in a plane perpendicular to the axis of the tube, the opening 33, Fig. 1, in the cutter having the form of a circle the centre of which is displaced from the axis of the tube, the opening 33 having an arcuate recess 34 the radius of which is substantially equal to that of the outer surface of the tube. The orbital motion of the plate 22 is produced by crank pins 24, Fig. 1, rotatably mounted in spaced bores in the plate and carried by shafts 26 which are driven by means of worm wheels 28 engaging worms 29 on a common driving shaft 30. The plate 22 is mounted in a housing formed by two plates 10, 11 bolted together and mounted on a base 12.
Patent GB-297563-A (GB)
Title: Improvements in and relating to electrical condensers
IPC: H01G4/224
Filed: 1927-09-03
Abstract: 297,563. Ferranti, S. Z. de. and Ferranti, Ltd. Sept. 3, 1927. Condensers have casings with permanently attached fixing lugs such that the lugs do not add to the maximum length and breadth of the casing. The invention is particularly applicable to Mansbridge type condensers wherein a flattened spiral of tin foil and waxed paper sheets is inserted in a casing a, the casing having rounded ends to conform to the shape of the condenser, and being enclosed at one end by a dished lid c carrying the terminals b and having a flanged edge which is soldered to the casing. At the other end a rectangular metal sheet e is similarly formed and secured to the casing, and the condenser may be secured to a base by fastening the corners of the sheet e, for example, by clamping under separate metal clips f formed to embrace the rounded ends of the casing and stepped to correspond with the thickness of the sheet e. This arrangement economizes space when packing for transport or assembly a number of condensers in wireless apparatus.
Patent GB-1287867-A (GB)
IPC: F04D29/46
Filed: 1971-04-19
Abstract: 1287867 Valves WESTINGHOUSE ELECTRIC CORP 19 April 1971 [26 Feb 1970] 23207/71 Heading F2V [Also in Division F1] A capacity control for a centrifugal refrigerant gas compressor 12 comprises a throttle disc pivotally mounted in a throttle intake passage 30 and an annular piston 38 for controlling the disc. (See also Division F1).
Patent GB-1503915-A (GB)
Title: Electrolytic process
IPC: H01M2/16
Filed: 1974-05-24
Abstract: 1503915 PTFE diaphragms IMPERIAL CHEMICAL INDUSTRIES Ltd 14 May 1975 [24 May 1974(2)] 23275/74 and 23316/74 Heading C7B [Also in Divisions C3 and H1] The diaphragm in an electrolytic cell, fuel cell or battery comprises a porous PTFE material characterized by a microstructure of nodes interconnected by fibrils such as described and claimed in Specification 1355373. The diaphragm may be filled with a non-removable inert material either before or after rendering porous. In the latter case the diaphragm is either agitated in a suspension of filler e.g. TiO 2  or ZrO 2  or is impregnated with a filler precursor e.g. TiCl 4 , Zr(OCl) 2  or (C 4 H 9 ) 4  TiO 4  which is thereafter hydrolyzed. The diaphragm may be treated before use in a cell using successive washes of NaOH, HCl and NaH 2 PO 4 . Specified electrolytic processes are chlor-alkali electrolysis and olefin oxidations.
Patent GB-1221397-A (GB)
Title: Moulded-plastic cartons for the packaging in boxes of small fragile or flabby filled sealed containers such as bottles and the like
IPC: B65D1/36
Filed: 1969-05-07
Abstract: 1,221,397. Cartons. COMPAGNIA ITALIANA NEST-PACK S.p.A. 7 May, 1969 [8 May, 1968], No. 23277/69. Heading B8P. A moulded plastics cellular insert 1 for a carton, has peripheral cells 2 supporting small containers, whereas the lower ends 103 of the inner cells 3 are a substantial height above the plane of the lower ends of the peripheral cells, so that the small containers protrude below the inner cells, the cells being connected by ribs 6 and 16, which merge with the substantially upright cell walls 4 partly corrugated at 5. The peripheral cells are provided with buses 102, preferably corrugated, and may be open at their outer sides with upright walls extending down to the bases. The inner cells may have corrugated bases, each base quartered to form four flaps, which, when pushed down by a container inserted in the cell, extend to but not beyond the plane of the peripheral bases, and grip the lower part of the containers. The cells of the insert may taper outwardly from the bottom to the top, thus permitting the empty inserts to be nested.
Patent GB-1519436-A (GB)
Title: Rapid chromic acid anodization
IPC: C25D11/08
Filed: 1977-06-02
Abstract: 1519436 Anodizing Al SOC DE VENTE DE L'ALUMINIUM PECHINEY 2 June 1977 [4 June 1976] 23466/77 Heading C7B Al and its alloys are anodized in aqueous chromic acid (100-200 g/l CrO 3 ) at 55-70C, 35-45V constant D.C., an anode c.d. of 3À5-5 A/dm<SP>2</SP> (up to 10 A/dm<SP>2</SP> for a continuous strip) with an anode area of 1À7-2À3 B dm<SP>2</SP> and a cathode area of not more than 0À06 B dm<SP>2</SP> where B is the bath volume in litres. Al cathodes are preferred, with working at 60  2C being optimum.
Patent GB-326251-A (GB)
Title: Improvements in or relating to television and like apparatus
IPC: H04N5/76
Filed: 1928-10-10
Abstract: 326,251. Baird, J. L., Television, Ltd., and Baird Television Development Co., Ltd. Oct. 10, 1928. Divided on 324,049. Addition to 253,957. Television. - Relates to scanning systems in which, as described in the parent Specification, several light-sources or lightsensitive cells are used in conjunction with each scanning disc. The number of lenses, apertures or reflectors required is reduced by the successive employment of a series of light-sensitive cells or light-sources spaced apart across the picture. Thus if the five cells 26 - - 30 be employed, the number of scanning lenses may be divided by five, the same set of lenses co-operating with each cell in turn. The cells are successively exposed through slots 20. In modifications (a) some of the cells may be arranged on each side of the disc axis (Figs. 1, 2, not shown); or (b) the cells may be obscured by shutters adapted to be removed successively by the action of electromagnets controlled by a commutator.
Patent GB-388382-A (GB)
Title: Improvements in aqueous lecithin compositions
IPC: A23J7/00
Filed: 1931-08-21
Abstract: To obtain a stable composition of lecithin and water which can be stored without deterioration, sugar preferably a hygroscopic sugar such as invert cane sugar is added in high concentration with respect to the water content.  In an example, a solution containing about 66 per cent of beet or invert cane sugar is homogeneously incorporated with an equal weight of lecithin.ALSO:To obtain a stable composition of lecithin and water which can be stored without deterioration, sugar, preferably a hygroscopic sugar such as invert cane sugar, is added in high concentration with respect to the water content.  In an example, a solution containing about 66 per cent of beet or invert cane sugar is homogeneously incorporated with an equal weight of lecithin.  The composition can readily be mixed with bakers' doughs and batters and other materials of an aqueous nature.
Patent GB-811443-A (GB)
Title: Improvements in or relating to coated paper and methods for producing the same
Inventor: HART ROBERT THOMPSON
IPC: D21H25/14
Filed: 1955-08-16
Abstract: 811,443. Cast-coated paper. WARREN CO., S. D. Aug. 16, 1955, No. 23610/55. Drawings to Specification. Class 96. Paper is coated with e.g. casein or soya protein and, e.g. with clay, blanc fixe, calcium carbonate, talc, titanium dioxide, or ultramarine, &c., e.g. with some synthetic rubber latex, glue, starch, or polyvinyl alcohol, there being present at the surface of the coating, while it is being finished by pressing it in a plastic condition against a highly polished heated drum &c., a reaction product of the hydrophilic swellable protein and a watersoluble amine having a boiling point above 150 C. and a basic ionization constant between 10<SP>-3</SP> and 10<SP>-7</SP>, the amount of amine being sufficient to maintain the pH value at 7.3 to 9. The paper may be dried and re-wetted, e.g. with aqueous formaldehyde immediately prior to finishing. The amine may be applied as a pool of aqueous solution in the nip between the coated paper and the heated drum. The amine used may be mono-, di-, tri-, or N-ethylethanolamine, N-hydroxyethyl propylene diamine, diethylene triamine, or triethylene tetramine, &c. An example mentions clay, converted starch, dyestuff, and a fungicide, applied as a surface filling before the coating mixture.
Patent GB-962363-A (GB)
Title: Improvements in or relating to vacuum treatment processes for textile materials
Inventor: BACH BRIAN
IPC: D06B5/00
Filed: 1962-06-20
Abstract: A method of treating textile materials e.g. yarn packages &c in a vacuum process, includes the steps of introducing said material into a chamber, evacuating the chamber to a sub-atmospheric pressure of the order of 20 inches of mercury, holding said pressure for a period of time equal to at least half that of the time taken to attain that pressure from atmospheric pressure, and admitting a gaseous treating medium into the chamber to raise the pressure therein to an intermediate sub-atmospheric pressure.  The treatment may further include evacuating the chamber after the admission of the gaseous treating medium to a sub-atmospheric pressure of about 20 inches of mercury, holding this pressure for a period of time equal to at least half of that taken to attain this pressure from the intermediate pressure and admitting further gaseous treating medium to return the pressure in the chamber to an intermediate sub-atmospheric pressure. The treating medium may be steam and the treatment may be further characterised by allowing the pressure in the chamber to oscillate about the intermediate pressure by the admission of short bursts of steam at periodic intervals.  After the treatment the chamber is brought back to atmospheric pressure by the admission of air.
Patent GB-918820-A (GB)
Title: Improvements relating to silica-alumina cracking catalysts
Inventor: WINYALL MILTON EDWARD
IPC: B01J21/12
Filed: 1961-06-30
Abstract: A silica-alumina gel catalyst is prepared by treating an aqueous solution of an alkali-metal silicate, preferably sodium silicate having SiO2:Na2O ratio 1:1 to 3,40:1 with CO2 to convert at least 70% of the free alkali to alkali metal carbonate, ageing the resulting hydrogel for 30-60 minutes, adding an aqueous solution of an aluminium compound and, after ageing the composite for 24-72 hours, drying and purifying the resulting composition which contains 5-10% by weight of alumina. The aluminium compound is preferably aluminium sulphate, but may be the salt of any mineral acid or of a weak acid such as acetic acid, or may be a hydrolysable compound such as a lower alcoholate.  The alumina-silica slurry is not filtered and reslurried, but is dried immediately after ageing, washed with water, and redried.  The final catalyst may be in the form of pellets, granules or microspheres produced by spray-drying, and may be used for cracking hydrocarbons, e.g. at 454 DEG -510 DEG C. at atmospheric pressure.  Specification 796,756 is referred to.
Patent GB-786337-A (GB)
Title: Improvements in or relating to lift trucks
IPC: B66F9/08
Filed: 1954-08-16
Abstract: 786,337. Fork lift trucks. LEVERSTART, Ltd., and SWEET, C. W. Aug. 12, 1955 [Aug. 16, 1954], No. 23819/54. Class 78(3). In a fork truck the carriage 25 is moved to the top of a two or three section guide mast 11, 13, 38 by a pair of endless chains 24 passing around spaced sets of sprockets 20, 19, 40, 41, 21, 22, 23 and driven by sprockets 29. Further jockey sprockets 28, 30, 31 are provided to maintain tension in the chains. Catch means (not shown) is provided to prevent movement of the mast sections 13, 38 before the carriage reaches abutment 37. The chains and sprockets may be replaced by cables and pulleys. Specifications 786,338 and 786,339, [both in Group XXIV], are referred to.
Patent GB-189569-A (GB)
Title: Improvements in or relating to dental rubber-working apparatus
IPC: A61C13/14
Filed: 1921-09-07
Abstract: 189,569. Bowling, J. D. Sept. 7, 1921. Teeth, artificial.-In the packing of rubber for vulcanite dentures the rubber is kept warm by placing it on unglazed porous slabs E supported over a hot-water trough C. The trough is formed with ledges D to support the slabs, and one end of the trough is partitioned off to form a well W into which the working instruments can be dipped.
Patent GB-637471-A (GB)
Title: Improvements in or relating to means for determining the thickness of non-magnetic coatings upon magnetic bases
IPC: G01B7/06
Filed: 1947-08-29
Abstract: 637,471. Magnetic thickness gauges. BIRMINGHAM SMALL ARMS CO., Ltd., BENNETT, R. S., and WALTON, K. Aug. 29, 1947, No. 23908. [Class 37] Apparatus for determining the thickness of a non- magnetic coating on a magnetic base comprise an electromagnet 3 having a movable core 9 surrounded by a movable, non-magnetic sleeve 5, and normally held with a contact on its upper end against a fixed contact 27 by a spring 15. In operation, the unit is pressed normally against the test surface to push back an extending portion of the sleeve 5 against a spring 25 until the core 9 is in contact with the work surface. The pressure is then removed and the body of the instrument is moved away from the surface by the spring 25 but the core is held magnetically against the surface. The circuit over contact 27 is thus broken and lamp 57, Fig. 4, is extinguished The energizing current of the electromagnet is then reduced by a variable resistance 49 until the. armature is just released and lamp 57 relights, the current, indicated on a meter 45 being a measure of the thickness of coating on the work-piece. Specification 615,763 is referred to.
Patent GB-813970-A (GB)
Title: Shear
Inventor: HITCHCOCK JOHN HUBERT
IPC: B23D25/12
Filed: 1957-07-29
Abstract: 813,970. Shearing. MORGAN CONSTRUCTION CO. July 29, 1957, No. 23911/57. Class 83 (4). In a shear for cutting stock of irregular crosssection and having profiled blades mounted on rotary drums with parallel axes, the co-operating surfaces of the blades are of conjugate form, one surface being formed as the addendum portion of the conjugate form and the other as the dedendum portion of the conjugate form. The blades 25, 26 for cutting moving angle section are mounted on oppositely rotating drums 21, 22. The lower and leading blade 26, Figs. 5 and 6, has an involute rear face 37 terminating in a V-profiled cutting edge with a central apex and guide projections 43, 44. The upper and trailing blade 25, Figs. 3 and 4, has an involute front face 29 terminating in a V-recess profiled cutting edge 31. The pitch circles of the blades touch at the mid-point between the axes of the drums 21, 22. The cutting edge 31 of the upper blade 25 ties within its pitch circle whereas the cutting edge 39 of the lower blade 26 is outside its pitch circle. The base circles of the involutes have the same diameter.
Patent GB-171195-A (GB)
Title: A cleaning or wiping device applicable for use in connection with the wind screens of motor cars and like vehicles
IPC: B60S1/14
Filed: 1920-08-18
Abstract: 171,195. Mills, W. Aug. 18, 1920. Windows and the like, cleaning. -Relates to a portable cleaner for the wind-screens of motor vehicles, and consists of a U-shaped member, one limb a of which is rigid of V-section and carries a squeegee c of rubber in one or two pieces held in place by a strip d and secured by screws e. This limb is joined by a bend a', the shape of which can be modified, to a flexible limb a<2> bent to form a handle a<6> and provided with a rubber pressure device a<9> located at about the mid-point of the arm a.
Patent GB-435780-A (GB)
Title: Improvements in or relating to means for purifying the exhaust gases of internal combustion engines
IPC: F01N3/26
Filed: 1934-08-21
Abstract: 435,780. Purifying exhaust. GRATCHEFF, A., 24, Rue des Nonnains-d'HyÞres, Paris. Aug. 21, 1934, No. 24154. [Class 7 (ii)] Air is fed, preferably by a pump, through a perforated pipe c extending along the exhaust manifold b ; the air is thus heated and oxidizes the impurities in the exhaust gas. Reference has been directed by the Comptroller to British Specifications 20050/09, 135,852, and 285,390, [all in Class 7 (ii)], and U.S.A. Specifications 1,855,165 and 1,897,746.
Patent GB-1480172-A (GB)
Title: Internal combustion engine cooling systems
IPC: F02B3/06
Filed: 1975-06-05
Abstract: 1480172 Cooling IC engines; exhaust ports and passages GENERAL MOTORS CORP 5 June 1975 [5 June 1974] 24268/75 Heading FIB The subject matter of this Specification is the same as that of Specification 1480171, but the claims relate to the cooling system of the engine.