baber/WOPTO huggingface dataset:
Patent GB-799940-A (GB)
Title: Improvements in and relating to colour television systems
IPC: H04N9/24
Filed: 1955-11-23
Abstract: 799,940. Colour television tubes. MORLE, C. W., (Philco Corporation). Nov. 23, 1955, No. 33587/55. Class 39(1). [Also in Group XL(b)] Colour balance is obtained in a colour television system employing stripes of luminescent materials of different colour response and efficiency by having the number or width of stripes of the materials in inverse relationship to their efficiencies. Indexing stripes of secondary emitting material are provided to control the scanning. The face plate of the colour tube is provided with a screen 40 comprising red phosphor stripes 42, 46 interposed in double frequency between the green phosphor stripes 44 and the blue phosphor stripes 48 in the sequence G, R, B, R, G, R, B, R, &c. A layer 50 of conducting material, e.g., aluminium, magnesium or beryllium covers the phosphor stripes, and indexing stripes 52 of higher secondary emission than the layer 50 are formed thereon. These stripes of caesium or magnesium oxide or a high atomic number metal such as gold, platinum or tungsten, are positioned over the green or blue stripes. The signals from the indexing stripes are used to control the relationship between the phase of the video information supplied to the control electrode of a C.R.T. and the position of the beam therein (see Group XL(b)). The widths of the strips may be modified to compensate for differences in phosphor efficiency alternatively the green or blue phosphor may be diluted to equalize efficiencies. The positioning of the indexing stripes I over the blue or green phosphor stripes, Fig. 4 (not shown) results in spurious indexing pulses which owing to the finite size of the beam spot are produced during the scanning of the red image field. These spurious pulses are symmetrically placed relative to the main pulse and they cancel out to give phase coincidence between the resultant indexing signal and the central axis of the indexing strip. The red phosphor may be zinc phosphate /manganese, the green zinc orthosilicate, and the blue zinc cadmium sulphide /silver. The indexing strips may be of a phosphor, e.g., caesium activated zinc oxide emitting ultra-violet which is detected photoelectrically, or one emitting visible light, suitable baffles being provided to exclude light from the main phosphor stripes.
Patent GB-423818-A (GB)
Title: Improvements relating to cartons or boxes for sweetmeats and other articles
IPC: B65D75/68
Filed: 1933-12-01
Abstract: 423,818. Unpacking. KUNZLE, C., 156, Broad Street, Birmingham. Dec. 1, 1933, No. 33763. [Class 94 (i)] The transparent or other wrapping of a box or carton is torn for removal by means of a ribbon, string, &c. secured at one end to the box and provided at the other end with a tab temporarily attached to the box and passing out through a slit in the wrapping. As shown, the ribbon a is fixed to the box lid atj, traverses the top of the box and terminates in a tab e one part of which is inserted in a slit in the box to keep the lid shut and the other end of which passes to the exterior through a slit in the wrapping f.
Patent GB-521710-A (GB)
Title: Improvements relating to remote control systems particularly for radio receivers
IPC: H03J1/06
Filed: 1938-11-22
Abstract: 521,710. Electric control systems. KOLSTER-BRANDES, Ltd., and ARNOLD, J. Nov. 22, 1938, No. 33947. [Class 40 (i)] A wireless receiver is tuned by a motor which also adjusts an auxiliary tuned circuit having a frequency range different from that of the receiver and responding to a variable control frequency in that range to provide, when tuned, a voltage which controls a relay to stop the motor. The control frequency may be transmitted by wireless or over lines which may be the power supply lines, In one arrangement, Fig. 1 (not shown), the auxiliary circuit is tuned by a condenser ganged with the tuning condensers of the receiver, the control range being 50-100 k.c. and the receiver range 550-1,500 k.c. Transmission of a control frequency which does not correspond to the tuning position of the receiver releases a relay controlled by a thermionic valve or discharge-tube to start the motor which rotates the ganged condenser in one direction or the other under the control of reversing contacts operated by a rotary arm at the limits of the travel. When the auxiliary circuit is in tune, the relay operates to stop the motor. In the modification shown in Fig. 2, a control frequency transmitted by oscillator 23 beats with the frequency generated by a frequency changer 25 to produce a predetermined intermediate frequency when the circuits are in tune. The tuning device of the frequency changer is ganged to that of the wireless receiver 35. The motor 26 is controlled by relays 30, 31, 33 controlled by circuits 28, 29 tuned slightly above and below the predetermined intermediate frequency so that when they receive said frequency 30, 31 are both operated and operate 33 to disconnect the motor. When the control frequency is changed, the resultant change in intermediate frequency releases one or other of relays 30, 31 to release 33 and start the motor in a direction dependent on which of relays 30, 31 is released. The release of relay 33 also makes a holding circuit for whichever relay 30, 31 is operated.
Patent GB-430885-A (GB)
Title: Apparatus for and method of vulcanising rubber articles
IPC: B29C35/02
Filed: 1934-11-26
Abstract: 430,885. Vulcanizing long lengths. STEVENS, A. H., 5, Quality Court, Chancery Lane, London.-(Boston Woven Hose & Rubber Co. ; 29, Hampshire Street, Cambridge, Massachusetts, U.S.A.) Nov. 26, 1934, No. 33948. [Class 70] A machine for vulcanizing rubber belting and like articles comprises a tension band movable with a heated cylinder about a portion of the circumference of the latter and a pressure roll mounted to engage the band at an appreciable distance beyond the point of initial contact of the band and cylinder and to force the band towards the surface of the cylinder, thereby exerting severe local pressure on the rubber which has already been rendered plastic by a limited movement between the band and the cylinder. As shown, one or more pressure rolls 36 are forced against the outside of the band 14 by hydraulic pressure. The unvulcanized rubber is drawn off a braked reel 15, tensioned by being passed around tensioning rolls 16-19, resistance to the rotation of which is offered by a tensioning sheave 20, and wound on a reel 28. The belt 14 may be tensioned by mechanism for moving the drums apart.
Patent GB-912461-A (GB)
Title: Improvements relating to annular magnetic-recording heads
IPC: G11B5/187
Filed: 1961-09-22
Abstract: 912,461. Magnetic record heads. PHILIPS ELECTRICAL INDUSTRIES Ltd. Sept. 22, 1961 [Sept. 27, 1960], No. 34023/61. Class 40 (2). A core of a magnetic head comprises two circuit parts of sintered oxidic ferromagnetic material separated by a gap filled with water glass. The opposing surfaces 4 and 6, 3 and 5 are accurately processed, for example polished, degreased, and coated with a diluted solution containing 7 to 9% Na 2 O and 24 to 27% SiO 2  and then allowed to dry for several hours at room temperature after which they are subjected to a temperature between 800‹ and 900‹ C. to cause vitrification. Subsequently, the surfaces are pressed together at 800‹ to 900‹ C. until a desired spacing of the gap is obtained.
Patent GB-845430-A (GB)
Title: Improvements in or relating to the production of cellulose esters
IPC: C08B17/02
Filed: 1956-11-07
Abstract: In esterifying cellulose, a suspension of cellulose fibres in an esterifying liquid such as a nitrating acid, is subjected to hydrodynamic pressure waves or vibrations in a supratonator (also known as a supraton mill) comprising a stator and a rotor each having projections arranged radially and concentrically about the axis of the rotor so that throttling passages, in the form of chambers, are formed between the stator and rotor.  The suspension is fed axially into the supratonator and then passes outwardly through the throttling passages, hydrodynamic pressure waves or vibrations being mechanically generated in the suspension at frequencies determined by its speed of flow and the number of chambers.
Patent GB-325537-A (GB)
Title: Improvements in or relating to road-wheels for vehicles
IPC: B60S1/68
Filed: 1928-11-20
Abstract: 325,537. Rushton, G. Nov. 20, 1928. Tyres, non-elastic; tyre-scrapers carried by wheels.-For clearing a tractor &c. wheel of clods picked up by the strakes, a ring 12 of greater diameter than the wheel rim 11 is fitted loosely between the brakes 13, 14. Clearance-holes 17 mav also be provided in the rim. The strakes, which are shown formed by channel-plates bolted to the wheel are preferably set with a backward rake relative to the forward travel of the wheel, the rake of the, leading strakes 13 being less than that of the trailing strakes 14.
Patent GB-448035-A (GB)
Title: Improvements in and relating to travelling bakers' ovens
IPC: A21B1/46
Filed: 1934-11-27
Abstract: 448,035. Bakers' ovens. POINT ON, J. E., and BAKER PERKINS, Ltd., Westwood Works, Peterborough. Nov. 27, 1934, No. 34104. [Class 51 (ii)] A baker's oven of the endless conveyer type is divided by a baffle 21 into two compartments through which the conveyer passes, and means are provided for adjusting the steam level in both compartments independently of one another. As shown the baffle 21 and the upper and lower walls of the oven are of arched formation, the space beneath the lower wall being used to accommodate the furnace or heating-means 20. The conveyer passes over end sprockets 15, 16 and is otherwise guided by rails 17, 18. The steam level in the two compartments is controlled by adjustable outlet casings 23, 24, each divided by a partition 28, Fig. 2, forming a U-shaped flue for the escaping steam, and the partition having valves 29 for determining the lowest level to which the steam can descend in the oven. The conveyer may be operated in either direction.
Patent GB-1099885-A (GB)
Title: Taps for containers
IPC: A61M16/20
Filed: 1966-07-29
Abstract: 1,099,885. Tapping boxes; boxes. AMERICAN FLANGE & MANUFACTURING CO. Inc. July 29, 1966 [Aug. 2, 1965], No. 34112/66. Headings B8P and B8T. [Also in Division F2] A tap for insertion into a box (10), Figs. 1, 2 (not shown), containing a free liquid-filled bag (11), comprises a tapered probe 15, Fig. 3, which is forced in through the side of the box &c. and includes a cylindrical body 17 into which is telescoped the cylindrical body 41 of a rotatable valve head 16, the two cylindrical bodies having valve ports 32, 44 which can be aligned by turning the valve so as to dispense the liquid from the bag. A collar (21) around the probe 15 is formed with two radial notches 22, 23, adjacent to which but axially spaced therefrom being two lugs 24, 25. Inclined cam surfaces 26, 27 are formed on the edges of the notches 22, 23 and lugs 24, 25. The side wall of the box has an area (12) defined by a line of perforations with ears (13) corresponding to the crosssectional shape of the broad end of the probe 15 and its lugs 24, 25. The tap is forced into the box with the lugs 24, 25 aligned with the ears (13). A pointer 36 on the collar is directed leftwardly, so that the port 32 is at the righthand side of the cylindrical body 17. The area (12) in the box wall is pushed into the box by the tap, leaving a hole of the same shape. The lugs 24, 25 pass through the notches previously occupied by the ears (13). As the tap is forced into the box, its pointed end 19 pierces the flexible bag (11). The material of the bag (11) rides-up the tapered surface of the probe 15 and forms a liquid-tight seal above ports 20 leading into the probe. When the collar (21), which is of larger diameter than the hole in the box, engages the outside of the box wall, the tap is rotated by means of finger grip 30. Since the lugs 24, 25 now lie inside the box wall, the cam surfaces 26, 27 slide over the inner and outer sides of the wall, Figs. 4, 5 (not shown), which is gripped between the lugs and the collar (21). In the final position, the pointer 36 is directed upwardly and the port 32 downwardly. The tap can now be opened by turning the valve head 16 within the cylindrical body 17 until the ports 32, 44 coincide. A stop 43 extending across a groove 42 in the valve head 16 abuts one or other of two diametrically opposite steps 34 at the end of the cylindrical body 17, to limit the angle through which the valve head may be turned. In a modification, a groove (47), Fig. 8 (not shown), around the probe and adjacent to the lugs (24 &c.), receives the edge of the hole pierced in the bag 11.
Patent GB-630445-A (GB)
Title: Improvements in and relating to polysiloxane resins
IPC: C08G77/00
Filed: 1946-11-18
Abstract: Polysiloxane resins are prepared by partly-preferably one-third to two-thirds-hydrolysing a mixture of methyl- and phenyl-trichlorosilanes, adding a dichlorosilane to the partly hydrolysed trichlorosilanes, and completing the hydrolysis. Preferably a common solvent for the chlorosilanes and water is present to prevent gelation and this may be diethyl carbitol or diethyl "Cellosolve" (Registered Trade Mark).  An inert solvent such as xylol, petroleum benzol, ethylene dichloride or n-butyl chloride is also desirably present at least during the later stages of hydrolysis to prevent gelation.  Specifications 542,655 and 585,627 are referred to.
Patent GB-1468355-A (GB)
Title: Making porous diaphragms in electrolytic cells
IPC: C25B13/08
Filed: 1973-07-18
Abstract: 1468355 Treating electrolysis diaphragms IMPERIAL CHEMICAL INDUSTRIES Ltd 24 June 1974 [18 July 1973 (2)] 34167/73 and 34168/73 Heading C7B  A diaphragm e.g. of PVdC or PTFE for use in an electrolytic cell e.g. an alkali metal chloride cell, is rendered porous in situ in the cell by electrolysis or acid extraction of a particulate additive incorporated in the diaphragm during manufacture. The additive may be maize and/or potato starch, cellulose, cellulose acetate or CaCO 3 . Electrolytic removal may employ e.g. NaCl as electrolyte with a normal working voltage or current density, and a reduced electrolyte flow, e.g. 10-30% of the normal working value, at 50-60C. Acid extraction may involve HNO 3 , HCl, H 2 SO 4  or acetic acid containing a corrosion inhibitor for mild steel, e.g. propargyl alcohol, thiourea or KCNS. The polymeric membrane may be made from an aqueous slurry containing the polymer, additive and a permanent filler such as TiO 2 , BaSO 4 , asbestos, graphite or Al 2 O 3  by a process including calendering and lamination, and in which a strengthening gauze of polypropylene may be rolled in. The polymer may be of particle size 0À05-1Á, the removable additive 5-100Á and the filler below 10Á.
Patent GB-781410-A (GB)
Title: Improvements relating to pool-type electric discharge devices
IPC: H01J13/04
Filed: 1955-11-30
Abstract: 781,410. Metal-vapour discharge apparatus. GENERAL ELECTRIC CO. Nov. 30, 1955 [Dec. 10, 1954], No. 34316/55. Class 39(1). An electric discharge device comprises a tubular envelope 1 to the lower end of which are sealed a pair of thin-walled hollow cylindrical ceramic members 4, 4<SP>1</SP> located in spaced relation a body of a liquid metal 7 retained within each of the ceramic members to form a pair of electrodes and a conductor 8, 8<SP>1</SP> surrounding each of the ceramic members at the surface level of the metal therein and co-operating with the members to provide the starting electrodes of the device. The ceramic members 4, 4<SP>1</SP> are sealed by a vitreous seal 5, 5<SP>1</SP> through which are led in conductors 6, 6<SP>1</SP>. The starting electrodes 8, 8<SP>1</SP> are connected by a spark gap 18, 19 to the transformer 15 of a starting circuit which may include a phase shifting device 24.
Patent GB-1213909-A (GB)
Title: Measuring and sorting appliance
Inventor: FAHRWALD WERNER
IPC: B07C5/08
Filed: 1968-07-18
Abstract: 1,213,909. Selective signalling. WALZLAGERWERK FRAUREUTH VEB. 18 July, 1968. No. 34329/68. Heading G4H. [Also in Division G1] In a system for measuring the slop in antifriction ball-bearings and subsequently sorting them, the inner sleeve of the bearing is clamped 6, 7 and force is applied diametrically to the outer sleeve 3 of the bearing, first by rollers 11, 12 and then in the opposite direction, by rollers 20, 21 and in both instances the position of the outer is sensed by a probe attached to a transducer 16, which produces a number of pulses proportional to its displacement. In the preferred embodiment for each bearing measurements are made along three equally inclined diameters and during each measurement the pressure rollers 11, 12 or 20, 21 are rotated slightly, forwards and backwards, so that the outer is able to bed down properly on the balls. Between each measurement the clamp 6 is released so that the bearing can be rotated bodily to the next measurement position, the inner and outer sleeves being maintained in their relative positions by the joint action of the clamp 6 and its resiliently mounted support 25.
Patent GB-282450-A (GB)
Title: Manufacture of 2-aminonaphthalene-3-carboxylic acid and an intermediate compound
Filed: 1927-12-19
Abstract: 282,450. Imray, O. Y., (I. G. Farbenindustrie Akt.-Ges.). Dec. 19, 1927. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 19, 1927]. 2-Aminonaphthalene-3-carboxylic acid is obtained by heating 2-hydroxynaphthalene-3-carboxylic acid or an alkali salt under pressure with ammonia and a ferrous salt, and decomposing the resulting complex iron compound to liberate the acid. e.g. by prolonged heat treatment with strong acid or alkali. The formation of the iron compound may be effected with ammonia of 25 per cent strength or less, using temperatures of 150-250‹ C., and pressures of 30-60 atmospheres; the product is not an iron salt of the acid, since only one atomic proportion of iron is present per molecular proportion of amino acid, but has the probable constitution. According to the examples, 2-hydroxynaphtba'ene-3-carboxylic acid is heated for some hours in an autoclave with ammonia and ferrous sulphate or chloride; after blowing off the ammonia and filtering, the residue is boiled with hydrochloric acid or caustic soda; the 2-aminonaphthalene-3-carboxylic acid hvdrochloride is then either salted out or precipitated with acid.
Patent GB-469538-A (GB)
Title: Process for the manufacture of artificial stone produced by fusion from refuse clinker
IPC: C04B32/00
Filed: 1936-12-16
Abstract: In the production of artificial stone by fusion of refuse clinker, the refuse is burnt without additional supply of heat, and the clinker is fused in an operation separate in time and space, the composition of the fused clinker being so controlled by fluxes that it does not solidify in a vitreous condition.  The product may contain, to 1 molecular proportion of the oxides of trivalent elements, between 2 and 6 molecular proportions of oxides of mono- or di-valent basic elements, and between 2 and 6 molecular proportions of oxides of tetravalent acid elements. Flux materials specified are sodium, potassium, magnesium, ferrous and manganous oxides, bauxite, sand, titanium dioxide, limestone, dolomite, magnesite, burnt iron pyrites, manganese clay, serpentine, olivine, and road metal dust.
Patent GB-932610-A (GB)
Title: Building structure and method of constructing the same
IPC: E04B1/18
Filed: 1959-10-12
Abstract: 932,610. Residential buildings; warehouses. G. LANG. Oct. 12, 1959, No. 34537/59. Class 20 (1). A building structure such as a workshop or store comprises a plurality of vertical units 1, 2, 3 which are provided with an outer covering 4 and are interconnected in spaced relation by connecting elements such as tie-rods 29 and by booms, joists or girders 6, members such as trays or boards 24 being disposed between the assembled units to divide same into storage cells. The units and connecting elements are formed from bars provided with uniformly spaced holes. The units may form a multistorey structure with a built-in ceiling or a single storey structure with a twin lean-to roof, see Figs. 3 and 4 (not shown), respectively. A building, having a ridge roof and a crane track or designed for domestic use, may also be provided, see Figs. 5 and 7 (not shown). The wall covering or cladding may consist of abutting panels having the joints therebetween sealed by covering strips, see Fig. 6 (not shown).
Patent GB-932917-A (GB)
Title: Photo-electric measuring and transposing device
IPC: G01D5/34
Filed: 1959-10-12
Abstract: 932,917. Photo-electric measuring or control device. J. HEIDENHAIN, [trading as WENCZLER & HEIDENHAIN]. Oct. 12, 1959 [Nov. 7, 1958], No. 34559/59. Class 40 (3). Apparatus for effecting the measurement determination of the position of an object, or for moving an object to a desired position comprises a photo-electric microscope in which the image of a graduation mark on the object is scanned by a vibrating shutter member in conjunction with a photo-cell so that zero output is obtained when the image is symmetrically disposed with regard to the zero position of the vibrating member, with means to move the microscope member or the object until said zero position is achieved, is modified by the addition of an apertured shutter member which permits the use of solely a portion of the graduation image which also is arranged to be obliquely inclined relative to the photoelectrically effective part, i.e. the aperture of the supplementary shutter. The principle of operation of known devices is illustrated in Fig. 1 in which the image T of a graduation in an area G of a mask B is scanned by a vibratable wire having a zero position D and extreme positions D1, D2 in conjunction with a light source and photo-electric cell. If the graduation T is not centrally disposed with regard to the zero position of the wire, the output derived from the photo-cell operates a servomotor to move the microscope member until a zero position is attained, thus providing the desired measurement. Alternatively, the member carrying the graduation member is moved until the zero position is attained. In the device shown in Fig. 2, the graduation image T is inclined to the longitudinal direction of the wire and a shutter C with a horizontal slot E covers the area B. The shutter C is moved in the directions of the arrows manually or by a servomotor, until the intersecting area, the image T and the shutter slit E provide a zero output from the photo-cell with the wire in its zero position D. Alternatively, the member carrying the graduation providing the image T can be moved to the zero position. The arrangement may be modified to effect displacement of a member carrying a number of graduation marks T, Fig. 5, by combining with the mask B having its scanning area G and vibratable wire D, a rotatable opaque disc P having a spiral slot S to provide in conjunction with the images T an intersecting area which moves upward over the area G. A motor which rotates the shutter disc P also moves the member carrying the graduations until it has been brought to the desired position with reference to the wire in its zero position D.